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authoreik <eik@FreeBSD.org>2004-08-31 21:46:52 +0800
committereik <eik@FreeBSD.org>2004-08-31 21:46:52 +0800
commit3aa6fb99983bcbead054b9c95268e94a400f211a (patch)
tree5bdc8c507bf76cf3f1e0b982086968e494b68df4 /databases/postgresql82-server/Makefile
parentf045ffabc4d6c65432cbf323b9e3f2828901fa3b (diff)
downloadfreebsd-ports-gnome-3aa6fb99983bcbead054b9c95268e94a400f211a.tar.gz
freebsd-ports-gnome-3aa6fb99983bcbead054b9c95268e94a400f211a.tar.zst
freebsd-ports-gnome-3aa6fb99983bcbead054b9c95268e94a400f211a.zip
- update to version 7.4.5:
* Prevent possible loss of committed transactions during crash * Repair possible crash during concurrent btree index insertions PR: 71176 Submitted by: SUGIMURA Takashi <sugimura@jp.FreeBSD.org> Reviewed by: Palle Girgensohn <girgen@pingpong.net> (maintainer)
Diffstat (limited to 'databases/postgresql82-server/Makefile')
-rw-r--r--databases/postgresql82-server/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/databases/postgresql82-server/Makefile b/databases/postgresql82-server/Makefile
index 4e1d17dd2e2d..2bcd85747fb6 100644
--- a/databases/postgresql82-server/Makefile
+++ b/databases/postgresql82-server/Makefile
@@ -6,7 +6,7 @@
#
PORTNAME?= postgresql
-PORTVERSION?= 7.4.3
+PORTVERSION?= 7.4.5
PORTREVISION?= 0
CATEGORIES?= databases
MASTER_SITES= ${MASTER_SITE_PGSQL}
generated by cgit (git 2.34.1) at 2024-12-28 08:33:55 +0800
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/*
 * Authors :
 *  Damon Chaplin <damon@ximian.com>
 *  Rodrigo Moya <rodrigo@ximian.com>
 *
 * Copyright 1999, Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

/*
 * EDayView - displays the Day & Work-Week views of the calendar.
 */

#include <config.h>

#include "e-day-view.h"

#include <math.h>
#include <time.h>
#include <gdk/gdkkeysyms.h>
#include <gdk/gdkx.h>
#include <gtk/gtkdnd.h>
#include <gtk/gtkinvisible.h>
#include <gtk/gtkmain.h>
#include <gtk/gtksignal.h>
#include <gtk/gtkvscrollbar.h>
#include <gtk/gtkwindow.h>
#include <gal/e-text/e-text.h>
#include <gal/widgets/e-popup-menu.h>
#include <gal/widgets/e-canvas-utils.h>
#include <libgnomeui/gnome-canvas-rect-ellipse.h>
#include <libgnome/gnome-i18n.h>

#include "cal-util/timeutil.h"
#include "dialogs/delete-comp.h"
#include "comp-util.h"
#include "calendar-commands.h"
#include "goto.h"
#include "e-day-view-time-item.h"
#include "e-day-view-top-item.h"
#include "e-day-view-layout.h"
#include "e-day-view-main-item.h"

/* Images */
#include "art/bell.xpm"
#include "art/recur.xpm"

/* The minimum amount of space wanted on each side of the date string. */
#define E_DAY_VIEW_DATE_X_PAD   4

#define E_DAY_VIEW_LARGE_FONT   \
    "-adobe-utopia-regular-r-normal-*-*-240-*-*-p-*-iso8859-*"
#define E_DAY_VIEW_LARGE_FONT_FALLBACK  \
    "-adobe-helvetica-bold-r-normal-*-*-240-*-*-p-*-iso8859-*"

/* The offset from the top/bottom of the canvas before auto-scrolling starts.*/
#define E_DAY_VIEW_AUTO_SCROLL_OFFSET   16

/* The time between each auto-scroll, in milliseconds. */
#define E_DAY_VIEW_AUTO_SCROLL_TIMEOUT  50

/* The number of timeouts we skip before we start scrolling. */
#define E_DAY_VIEW_AUTO_SCROLL_DELAY    5

/* The number of pixels the mouse has to be moved with the button down before
   we start a drag. */
#define E_DAY_VIEW_DRAG_START_OFFSET    4

/* The amount we scroll the main canvas when the Page Up/Down keys are pressed,
   as a fraction of the page size. */
#define E_DAY_VIEW_PAGE_STEP        0.5

/* The amount we scroll the main canvas when the mouse wheel buttons are
   pressed, as a fraction of the page size. */
#define E_DAY_VIEW_WHEEL_MOUSE_STEP_SIZE    0.25


/* Drag and Drop stuff. */
enum {
    TARGET_CALENDAR_EVENT
};
static GtkTargetEntry target_table[] = {
    { "application/x-e-calendar-event",     0, TARGET_CALENDAR_EVENT }
};
static guint n_targets = sizeof(target_table) / sizeof(target_table[0]);

static void e_day_view_class_init (EDayViewClass *class);
static void e_day_view_init (EDayView *day_view);
static void e_day_view_destroy (GtkObject *object);
static void e_day_view_realize (GtkWidget *widget);
static void e_day_view_unrealize (GtkWidget *widget);
static void e_day_view_style_set (GtkWidget *widget,
                  GtkStyle  *previous_style);
static void e_day_view_size_allocate (GtkWidget *widget,
                      GtkAllocation *allocation);
static gboolean e_day_view_update_scroll_regions (EDayView *day_view);
static gint e_day_view_focus_in (GtkWidget *widget,
                 GdkEventFocus *event);
static gint e_day_view_focus_out (GtkWidget *widget,
                  GdkEventFocus *event);
static gint e_day_view_key_press (GtkWidget *widget,
                  GdkEventKey *event);
static void e_day_view_cursor_key_up_shifted (EDayView *day_view,
                          GdkEventKey *event);
static void e_day_view_cursor_key_down_shifted (EDayView *day_view,
                        GdkEventKey *event);
static void e_day_view_cursor_key_left_shifted (EDayView *day_view,
                        GdkEventKey *event);
static void e_day_view_cursor_key_right_shifted (EDayView *day_view,
                         GdkEventKey *event);
static void e_day_view_cursor_key_up (EDayView *day_view,
                      GdkEventKey *event);
static void e_day_view_cursor_key_down (EDayView *day_view,
                    GdkEventKey *event);
static void e_day_view_cursor_key_left (EDayView *day_view,
                    GdkEventKey *event);
static void e_day_view_cursor_key_right (EDayView *day_view,
                     GdkEventKey *event);
static void e_day_view_ensure_rows_visible (EDayView *day_view,
                        gint start_row,
                        gint end_row);
static void e_day_view_scroll   (EDayView   *day_view,
                 gfloat      pages_to_scroll);

static gboolean e_day_view_check_if_new_event_fits (EDayView *day_view);

static void e_day_view_on_canvas_realized (GtkWidget *widget,
                       EDayView *day_view);

static gboolean e_day_view_on_top_canvas_button_press (GtkWidget *widget,
                               GdkEventButton *event,
                               EDayView *day_view);
static gboolean e_day_view_on_top_canvas_button_release (GtkWidget *widget,
                             GdkEventButton *event,
                             EDayView *day_view);
static gboolean e_day_view_on_top_canvas_motion (GtkWidget *widget,
                         GdkEventMotion *event,
                         EDayView *day_view);

static gboolean e_day_view_on_main_canvas_button_press (GtkWidget *widget,
                            GdkEventButton *event,
                            EDayView *day_view);
static gboolean e_day_view_on_main_canvas_button_release (GtkWidget *widget,
                              GdkEventButton *event,
                              EDayView *day_view);

static gboolean e_day_view_on_time_canvas_button_press (GtkWidget *widget,
                            GdkEventButton *event,
                            EDayView *day_view);

static void e_day_view_update_calendar_selection_time (EDayView *day_view);
static gboolean e_day_view_on_main_canvas_motion (GtkWidget *widget,
                          GdkEventMotion *event,
                          EDayView *day_view);
static gboolean e_day_view_convert_event_coords (EDayView *day_view,
                         GdkEvent *event,
                         GdkWindow *window,
                         gint *x_return,
                         gint *y_return);
static void e_day_view_update_long_event_resize (EDayView *day_view,
                         gint day);
static void e_day_view_update_resize (EDayView *day_view,
                      gint row);
static void e_day_view_finish_long_event_resize (EDayView *day_view);
static void e_day_view_finish_resize (EDayView *day_view);
static void e_day_view_abort_resize (EDayView *day_view,
                     guint32 time);


static gboolean e_day_view_on_long_event_button_press (EDayView     *day_view,
                               gint      event_num,
                               GdkEventButton   *event,
                               EDayViewPosition  pos,
                               gint      event_x,
                               gint      event_y);
static gboolean e_day_view_on_event_button_press (EDayView   *day_view,
                          gint        day,
                          gint        event_num,
                          GdkEventButton *event,
                          EDayViewPosition pos,
                          gint        event_x,
                          gint        event_y);
static void e_day_view_on_long_event_click (EDayView *day_view,
                        gint event_num,
                        GdkEventButton  *bevent,
                        EDayViewPosition pos,
                        gint         event_x,
                        gint         event_y);
static void e_day_view_on_event_click (EDayView *day_view,
                       gint day,
                       gint event_num,
                       GdkEventButton  *event,
                       EDayViewPosition pos,
                       gint     event_x,
                       gint     event_y);
static void e_day_view_on_event_double_click (EDayView *day_view,
                          gint day,
                          gint event_num);
static void e_day_view_on_event_right_click (EDayView *day_view,
                         GdkEventButton *bevent,
                         gint day,
                         gint event_num);

static void e_day_view_recalc_day_starts (EDayView *day_view,
                      time_t start_time);
static void e_day_view_recalc_num_rows  (EDayView   *day_view);
static void e_day_view_recalc_cell_sizes    (EDayView   *day_view);

static EDayViewPosition e_day_view_convert_position_in_top_canvas (EDayView *day_view,
                                   gint x,
                                   gint y,
                                   gint *day_return,
                                   gint *event_num_return);
static EDayViewPosition e_day_view_convert_position_in_main_canvas (EDayView *day_view,
                                    gint x,
                                    gint y,
                                    gint *day_return,
                                    gint *row_return,
                                    gint *event_num_return);
static gboolean e_day_view_find_event_from_item (EDayView *day_view,
                         GnomeCanvasItem *item,
                         gint *day_return,
                         gint *event_num_return);
static gboolean e_day_view_find_event_from_uid (EDayView *day_view,
                        const gchar *uid,
                        gint *day_return,
                        gint *event_num_return);

typedef gboolean (* EDayViewForeachEventCallback) (EDayView *day_view,
                           gint day,
                           gint event_num,
                           gpointer data);

static void e_day_view_foreach_event        (EDayView   *day_view,
                         EDayViewForeachEventCallback callback,
                         gpointer    data);
static void e_day_view_foreach_event_with_uid (EDayView *day_view,
                           const gchar *uid,
                           EDayViewForeachEventCallback callback,
                           gpointer data);

static void e_day_view_free_events (EDayView *day_view);
static void e_day_view_free_event_array (EDayView *day_view,
                     GArray *array);
static int e_day_view_add_event (CalComponent *comp,
                 time_t   start,
                 time_t   end,
                 gpointer data);
static void e_day_view_update_event_label (EDayView *day_view,
                       gint day,
                       gint event_num);
static void e_day_view_update_long_event_label (EDayView *day_view,
                        gint event_num);

static void e_day_view_reshape_long_events (EDayView *day_view);
static void e_day_view_reshape_long_event (EDayView *day_view,
                       gint event_num);
static void e_day_view_reshape_day_events (EDayView *day_view,
                       gint day);
static void e_day_view_reshape_day_event (EDayView *day_view,
                      gint  day,
                      gint  event_num);
static void e_day_view_reshape_main_canvas_resize_bars (EDayView *day_view);
static void e_day_view_reshape_resize_long_event_rect_item (EDayView *day_view);
static void e_day_view_reshape_resize_rect_item (EDayView *day_view);

static void e_day_view_ensure_events_sorted (EDayView *day_view);

static void e_day_view_start_editing_event (EDayView *day_view,
                        gint day,
                        gint event_num,
                        gchar *initial_text);
static void e_day_view_stop_editing_event (EDayView *day_view);
static gboolean e_day_view_on_text_item_event (GnomeCanvasItem *item,
                           GdkEvent *event,
                           EDayView *day_view);
static void e_day_view_on_editing_started (EDayView *day_view,
                       GnomeCanvasItem *item);
static void e_day_view_on_editing_stopped (EDayView *day_view,
                       GnomeCanvasItem *item);

static time_t e_day_view_convert_grid_position_to_time (EDayView *day_view,
                            gint col,
                            gint row);
static gboolean e_day_view_convert_time_to_grid_position (EDayView *day_view,
                              time_t time,
                              gint *col,
                              gint *row);

static void e_day_view_start_auto_scroll (EDayView *day_view,
                      gboolean scroll_up);
static gboolean e_day_view_auto_scroll_handler (gpointer data);

static void e_day_view_on_new_appointment (GtkWidget *widget,
                       gpointer data);
static void e_day_view_on_new_event       (GtkWidget *widget,
                       gpointer data);
static void e_day_view_on_goto_today      (GtkWidget *widget,
                       gpointer data);
static void e_day_view_on_goto_date       (GtkWidget *widget,
                       gpointer data);
static void e_day_view_on_edit_appointment (GtkWidget *widget,
                        gpointer data);
static void e_day_view_on_delete_occurrence (GtkWidget *widget,
                         gpointer data);
static void e_day_view_on_delete_appointment (GtkWidget *widget,
                          gpointer data);
static void e_day_view_on_cut (GtkWidget *widget, gpointer data);
static void e_day_view_on_copy (GtkWidget *widget, gpointer data);
static void e_day_view_on_paste (GtkWidget *widget, gpointer data);
static void e_day_view_on_unrecur_appointment (GtkWidget *widget,
                           gpointer data);
static EDayViewEvent* e_day_view_get_popup_menu_event (EDayView *day_view);

static gint e_day_view_on_top_canvas_drag_motion (GtkWidget      *widget,
                          GdkDragContext *context,
                          gint            x,
                          gint            y,
                          guint           time,
                          EDayView    *day_view);
static void e_day_view_update_top_canvas_drag (EDayView *day_view,
                           gint day);
static void e_day_view_reshape_top_canvas_drag_item (EDayView *day_view);
static gint e_day_view_on_main_canvas_drag_motion (GtkWidget      *widget,
                           GdkDragContext *context,
                           gint            x,
                           gint            y,
                           guint           time,
                           EDayView   *day_view);
static void e_day_view_reshape_main_canvas_drag_item (EDayView *day_view);
static void e_day_view_update_main_canvas_drag (EDayView *day_view,
                        gint row,
                        gint day);
static void e_day_view_on_top_canvas_drag_leave (GtkWidget      *widget,
                         GdkDragContext *context,
                         guint           time,
                         EDayView        *day_view);
static void e_day_view_on_main_canvas_drag_leave (GtkWidget      *widget,
                          GdkDragContext *context,
                          guint           time,
                          EDayView   *day_view);
static void e_day_view_on_drag_begin (GtkWidget      *widget,
                      GdkDragContext *context,
                      EDayView     *day_view);
static void e_day_view_on_drag_end (GtkWidget      *widget,
                    GdkDragContext *context,
                    EDayView       *day_view);
static void e_day_view_on_drag_data_get (GtkWidget          *widget,
                     GdkDragContext     *context,
                     GtkSelectionData   *selection_data,
                     guint               info,
                     guint               time,
                     EDayView       *day_view);
static void e_day_view_on_top_canvas_drag_data_received (GtkWidget  *widget,
                             GdkDragContext *context,
                             gint            x,
                             gint            y,
                             GtkSelectionData *data,
                             guint           info,
                             guint           time,
                             EDayView   *day_view);
static void e_day_view_on_main_canvas_drag_data_received (GtkWidget      *widget,
                              GdkDragContext *context,
                              gint            x,
                              gint            y,
                              GtkSelectionData *data,
                              guint           info,
                              guint           time,
                              EDayView   *day_view);

static gboolean e_day_view_update_event_cb (EDayView *day_view,
                        gint day,
                        gint event_num,
                        gpointer data);
static gboolean e_day_view_remove_event_cb (EDayView *day_view,
                        gint day,
                        gint event_num,
                        gpointer data);
static void e_day_view_normalize_selection (EDayView *day_view);
static gboolean e_day_view_set_show_times_cb    (EDayView   *day_view,
                         gint        day,
                         gint        event_num,
                         gpointer    data);
static time_t e_day_view_find_work_week_start   (EDayView   *day_view,
                         time_t      start_time);
static void e_day_view_recalc_work_week     (EDayView   *day_view);
static void e_day_view_recalc_work_week_days_shown  (EDayView   *day_view);
static gboolean e_day_view_set_event_font_cb    (EDayView   *day_view,
                         gint        day,
                         gint        event_num,
                         gpointer    data);

static void selection_clear_event (GtkWidget *invisible,
                   GdkEventSelection *event,
                   EDayView *day_view);
static void selection_received (GtkWidget *invisible,
                GtkSelectionData *selection_data,
                guint time,
                EDayView *day_view);
static void selection_get (GtkWidget *invisible,
               GtkSelectionData *selection_data,
               guint info,
               guint time_stamp,
               EDayView *day_view);
static void invisible_destroyed (GtkWidget *invisible, EDayView *day_view);


static GtkTableClass *parent_class;
static GdkAtom clipboard_atom = GDK_NONE;


GtkType
e_day_view_get_type (void)
{
    static GtkType e_day_view_type = 0;

    if (!e_day_view_type){
        GtkTypeInfo e_day_view_info = {
            "EDayView",
            sizeof (EDayView),
            sizeof (EDayViewClass),
            (GtkClassInitFunc) e_day_view_class_init,
            (GtkObjectInitFunc) e_day_view_init,
            NULL, /* reserved 1 */
            NULL, /* reserved 2 */
            (GtkClassInitFunc) NULL
        };

        parent_class = gtk_type_class (GTK_TYPE_TABLE);
        e_day_view_type = gtk_type_unique (GTK_TYPE_TABLE,
                           &e_day_view_info);
    }

    return e_day_view_type;
}


static void
e_day_view_class_init (EDayViewClass *class)
{
    GtkObjectClass *object_class;
    GtkWidgetClass *widget_class;

    object_class = (GtkObjectClass *) class;
    widget_class = (GtkWidgetClass *) class;

    /* Method override */
    object_class->destroy       = e_day_view_destroy;

    widget_class->realize       = e_day_view_realize;
    widget_class->unrealize     = e_day_view_unrealize;
    widget_class->style_set     = e_day_view_style_set;
    widget_class->size_allocate = e_day_view_size_allocate;
    widget_class->focus_in_event    = e_day_view_focus_in;
    widget_class->focus_out_event   = e_day_view_focus_out;
    widget_class->key_press_event   = e_day_view_key_press;

    /* clipboard atom */
    if (!clipboard_atom)
        clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE);
}


static void
e_day_view_init (EDayView *day_view)
{
    gint day;
    GnomeCanvasGroup *canvas_group;

    GTK_WIDGET_SET_FLAGS (day_view, GTK_CAN_FOCUS);

    day_view->calendar = NULL;
    day_view->client = NULL;
    day_view->sexp = g_strdup ("#t"); /* match all by default */
    day_view->query = NULL;

    day_view->long_events = g_array_new (FALSE, FALSE,
                         sizeof (EDayViewEvent));
    day_view->long_events_sorted = TRUE;
    day_view->long_events_need_layout = FALSE;
    day_view->long_events_need_reshape = FALSE;

    for (day = 0; day < E_DAY_VIEW_MAX_DAYS; day++) {
        day_view->events[day] = g_array_new (FALSE, FALSE,
                             sizeof (EDayViewEvent));
        day_view->events_sorted[day] = TRUE;
        day_view->need_layout[day] = FALSE;
        day_view->need_reshape[day] = FALSE;
    }

    /* These indicate that the times haven't been set. */
    day_view->lower = 0;
    day_view->upper = 0;

    day_view->work_week_view = FALSE;
    day_view->days_shown = 1;

    day_view->zone = NULL;

    day_view->mins_per_row = 30;
    day_view->date_format = E_DAY_VIEW_DATE_FULL;
    day_view->rows_in_top_display = 0;

    /* Note that these don't work yet. It would need a few fixes to the
       way event->start_minute and event->end_minute are used, and there
       may be problems with events that go outside the visible times. */
    day_view->first_hour_shown = 0;
    day_view->first_minute_shown = 0;
    day_view->last_hour_shown = 24;
    day_view->last_minute_shown = 0;

    day_view->main_gc = NULL;
    e_day_view_recalc_num_rows (day_view);

    day_view->working_days = E_DAY_VIEW_MONDAY | E_DAY_VIEW_TUESDAY
        | E_DAY_VIEW_WEDNESDAY | E_DAY_VIEW_THURSDAY
        | E_DAY_VIEW_FRIDAY;

    day_view->work_day_start_hour = 9;
    day_view->work_day_start_minute = 0;
    day_view->work_day_end_hour = 17;
    day_view->work_day_end_minute = 0;
    day_view->show_event_end_times = TRUE;
    day_view->week_start_day = 0;
    day_view->scroll_to_work_day = TRUE;

    day_view->editing_event_day = -1;
    day_view->editing_event_num = -1;

    day_view->resize_bars_event_day = -1;
    day_view->resize_bars_event_num = -1;

    day_view->selection_start_row = -1;
    day_view->selection_start_day = -1;
    day_view->selection_end_row = -1;
    day_view->selection_end_day = -1;
    day_view->selection_is_being_dragged = FALSE;
    day_view->selection_drag_pos = E_DAY_VIEW_DRAG_END;
    day_view->selection_in_top_canvas = FALSE;

    day_view->resize_drag_pos = E_DAY_VIEW_POS_NONE;

    day_view->pressed_event_day = -1;

    day_view->drag_event_day = -1;
    day_view->drag_last_day = -1;

    day_view->auto_scroll_timeout_id = 0;

    /* Create the large font. */
    day_view->large_font = gdk_font_load (E_DAY_VIEW_LARGE_FONT);
    if (!day_view->large_font)
        day_view->large_font = gdk_font_load (E_DAY_VIEW_LARGE_FONT_FALLBACK);
    if (!day_view->large_font)
        g_warning ("Couldn't load font");

    /* String to use in 12-hour time format for times in the morning. */
    day_view->am_string = _("am");

    /* String to use in 12-hour time format for times in the afternoon. */
    day_view->pm_string = _("pm");


    /*
     * Top Canvas
     */
    day_view->top_canvas = e_canvas_new ();
    gtk_table_attach (GTK_TABLE (day_view), day_view->top_canvas,
              1, 2, 0, 1, GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
    gtk_widget_show (day_view->top_canvas);
    gtk_signal_connect_after (GTK_OBJECT (day_view->top_canvas), "button_press_event",
                  GTK_SIGNAL_FUNC (e_day_view_on_top_canvas_button_press),
                  day_view);
    gtk_signal_connect_after (GTK_OBJECT (day_view->top_canvas), "button_release_event",
                  GTK_SIGNAL_FUNC (e_day_view_on_top_canvas_button_release),
                  day_view);
    gtk_signal_connect_after (GTK_OBJECT (day_view->top_canvas), "motion_notify_event",
                  GTK_SIGNAL_FUNC (e_day_view_on_top_canvas_motion),
                  day_view);
    gtk_signal_connect_after (GTK_OBJECT (day_view->top_canvas),
                  "drag_motion",
                  GTK_SIGNAL_FUNC (e_day_view_on_top_canvas_drag_motion),
                  day_view);
    gtk_signal_connect_after (GTK_OBJECT (day_view->top_canvas),
                  "drag_leave",
                  GTK_SIGNAL_FUNC (e_day_view_on_top_canvas_drag_leave),
                  day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->top_canvas),
                "drag_begin",
                GTK_SIGNAL_FUNC (e_day_view_on_drag_begin),
                day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->top_canvas),
                "drag_end",
                GTK_SIGNAL_FUNC (e_day_view_on_drag_end),
                day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->top_canvas),
                "drag_data_get",
                GTK_SIGNAL_FUNC (e_day_view_on_drag_data_get),
                day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->top_canvas),
                "drag_data_received",
                GTK_SIGNAL_FUNC (e_day_view_on_top_canvas_drag_data_received),
                day_view);

    canvas_group = GNOME_CANVAS_GROUP (GNOME_CANVAS (day_view->top_canvas)->root);

    day_view->top_canvas_item =
        gnome_canvas_item_new (canvas_group,
                       e_day_view_top_item_get_type (),
                       "EDayViewTopItem::day_view", day_view,
                       NULL);

    day_view->resize_long_event_rect_item =
        gnome_canvas_item_new (canvas_group,
                       gnome_canvas_rect_get_type(),
                       NULL);
    gnome_canvas_item_hide (day_view->resize_long_event_rect_item);

    day_view->drag_long_event_rect_item =
        gnome_canvas_item_new (canvas_group,
                       gnome_canvas_rect_get_type (),
                       "width_pixels", 1,
                       NULL);
    gnome_canvas_item_hide (day_view->drag_long_event_rect_item);

    day_view->drag_long_event_item =
        gnome_canvas_item_new (canvas_group,
                       e_text_get_type (),
                       "anchor", GTK_ANCHOR_NW,
                       "line_wrap", TRUE,
                       "clip", TRUE,
                       "max_lines", 1,
                       "editable", TRUE,
                       "draw_background", FALSE,
                       "fill_color_rgba", GNOME_CANVAS_COLOR(0, 0, 0),
                       NULL);
    gnome_canvas_item_hide (day_view->drag_long_event_item);

    /*
     * Main Canvas
     */
    day_view->main_canvas = e_canvas_new ();
    gtk_table_attach (GTK_TABLE (day_view), day_view->main_canvas,
              1, 2, 1, 2,
              GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
    gtk_widget_show (day_view->main_canvas);
    gtk_signal_connect (GTK_OBJECT (day_view->main_canvas), "realize",
                GTK_SIGNAL_FUNC (e_day_view_on_canvas_realized),
                day_view);
    gtk_signal_connect_after (GTK_OBJECT (day_view->main_canvas),
                  "button_press_event",
                  GTK_SIGNAL_FUNC (e_day_view_on_main_canvas_button_press),
                  day_view);
    gtk_signal_connect_after (GTK_OBJECT (day_view->main_canvas),
                  "button_release_event",
                  GTK_SIGNAL_FUNC (e_day_view_on_main_canvas_button_release),
                  day_view);
    gtk_signal_connect_after (GTK_OBJECT (day_view->main_canvas),
                  "motion_notify_event",
                  GTK_SIGNAL_FUNC (e_day_view_on_main_canvas_motion),
                  day_view);
    gtk_signal_connect_after (GTK_OBJECT (day_view->main_canvas),
                  "drag_motion",
                  GTK_SIGNAL_FUNC (e_day_view_on_main_canvas_drag_motion),
                  day_view);
    gtk_signal_connect_after (GTK_OBJECT (day_view->main_canvas),
                  "drag_leave",
                  GTK_SIGNAL_FUNC (e_day_view_on_main_canvas_drag_leave),
                  day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->main_canvas),
                "drag_begin",
                GTK_SIGNAL_FUNC (e_day_view_on_drag_begin),
                day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->main_canvas),
                "drag_end",
                GTK_SIGNAL_FUNC (e_day_view_on_drag_end),
                day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->main_canvas),
                "drag_data_get",
                GTK_SIGNAL_FUNC (e_day_view_on_drag_data_get),
                day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->main_canvas),
                "drag_data_received",
                GTK_SIGNAL_FUNC (e_day_view_on_main_canvas_drag_data_received),
                day_view);

    canvas_group = GNOME_CANVAS_GROUP (GNOME_CANVAS (day_view->main_canvas)->root);

    day_view->main_canvas_item =
        gnome_canvas_item_new (canvas_group,
                       e_day_view_main_item_get_type (),
                       "EDayViewMainItem::day_view", day_view,
                       NULL);

    day_view->resize_rect_item =
        gnome_canvas_item_new (canvas_group,
                       gnome_canvas_rect_get_type(),
                       NULL);
    gnome_canvas_item_hide (day_view->resize_rect_item);

    day_view->resize_bar_item =
        gnome_canvas_item_new (canvas_group,
                       gnome_canvas_rect_get_type(),
                       NULL);
    gnome_canvas_item_hide (day_view->resize_bar_item);

    day_view->main_canvas_top_resize_bar_item =
        gnome_canvas_item_new (canvas_group,
                       gnome_canvas_rect_get_type (),
                       "width_pixels", 1,
                       NULL);
    gnome_canvas_item_hide (day_view->main_canvas_top_resize_bar_item);

    day_view->main_canvas_bottom_resize_bar_item =
        gnome_canvas_item_new (canvas_group,
                       gnome_canvas_rect_get_type (),
                       "width_pixels", 1,
                       NULL);
    gnome_canvas_item_hide (day_view->main_canvas_bottom_resize_bar_item);


    day_view->drag_rect_item =
        gnome_canvas_item_new (canvas_group,
                       gnome_canvas_rect_get_type (),
                       "width_pixels", 1,
                       NULL);
    gnome_canvas_item_hide (day_view->drag_rect_item);

    day_view->drag_bar_item =
        gnome_canvas_item_new (canvas_group,
                       gnome_canvas_rect_get_type (),
                       "width_pixels", 1,
                       NULL);
    gnome_canvas_item_hide (day_view->drag_bar_item);

    day_view->drag_item =
        gnome_canvas_item_new (canvas_group,
                       e_text_get_type (),
                       "anchor", GTK_ANCHOR_NW,
                       "line_wrap", TRUE,
                       "clip", TRUE,
                       "editable", TRUE,
                       "draw_background", FALSE,
                       "fill_color_rgba", GNOME_CANVAS_COLOR(0, 0, 0),
                       NULL);
    gnome_canvas_item_hide (day_view->drag_item);


    /*
     * Times Canvas
     */
    day_view->time_canvas = e_canvas_new ();
    gtk_layout_set_vadjustment (GTK_LAYOUT (day_view->time_canvas),
                    GTK_LAYOUT (day_view->main_canvas)->vadjustment);
    gtk_table_attach (GTK_TABLE (day_view), day_view->time_canvas,
              0, 1, 1, 2,
              GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
    gtk_widget_show (day_view->time_canvas);
    gtk_signal_connect_after (GTK_OBJECT (day_view->time_canvas),
                  "button_press_event",
                  GTK_SIGNAL_FUNC (e_day_view_on_time_canvas_button_press),
                  day_view);

    canvas_group = GNOME_CANVAS_GROUP (GNOME_CANVAS (day_view->time_canvas)->root);

    day_view->time_canvas_item =
        gnome_canvas_item_new (canvas_group,
                       e_day_view_time_item_get_type (),
                       "EDayViewTimeItem::day_view", day_view,
                       NULL);


    /*
     * Scrollbar.
     */
    day_view->vscrollbar = gtk_vscrollbar_new (GTK_LAYOUT (day_view->main_canvas)->vadjustment);
    gtk_table_attach (GTK_TABLE (day_view), day_view->vscrollbar,
              2, 3, 1, 2, 0, GTK_EXPAND | GTK_FILL, 0, 0);
    gtk_widget_show (day_view->vscrollbar);


    /* Create the cursors. */
    day_view->normal_cursor = gdk_cursor_new (GDK_LEFT_PTR);
    day_view->move_cursor = gdk_cursor_new (GDK_FLEUR);
    day_view->resize_width_cursor = gdk_cursor_new (GDK_SB_H_DOUBLE_ARROW);
    day_view->resize_height_cursor = gdk_cursor_new (GDK_SB_V_DOUBLE_ARROW);
    day_view->last_cursor_set_in_top_canvas = NULL;
    day_view->last_cursor_set_in_main_canvas = NULL;

    /* Set up the drop sites. */
    gtk_drag_dest_set (day_view->top_canvas,
               GTK_DEST_DEFAULT_ALL,
               target_table, n_targets,
               GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_ASK);
    gtk_drag_dest_set (day_view->main_canvas,
               GTK_DEST_DEFAULT_ALL,
               target_table, n_targets,
               GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_ASK);

    /* Set up the invisible widget for the clipboard selections */
    day_view->invisible = gtk_invisible_new ();
    gtk_selection_add_target (day_view->invisible,
                  clipboard_atom,
                  GDK_SELECTION_TYPE_STRING,
                  0);
    gtk_signal_connect (GTK_OBJECT (day_view->invisible),
                "selection_get",
                GTK_SIGNAL_FUNC (selection_get),
                (gpointer) day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->invisible),
                "selection_clear_event",
                GTK_SIGNAL_FUNC (selection_clear_event),
                (gpointer) day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->invisible),
                "selection_received",
                GTK_SIGNAL_FUNC (selection_received),
                (gpointer) day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->invisible),
                "destroy",
                GTK_SIGNAL_FUNC (invisible_destroyed),
                (gpointer) day_view);
    day_view->clipboard_selection = NULL;
}


/* Turn off the background of the canvas windows. This reduces flicker
   considerably when scrolling. (Why isn't it in GnomeCanvas?). */
static void
e_day_view_on_canvas_realized (GtkWidget *widget,
                   EDayView *day_view)
{
    gdk_window_set_back_pixmap (GTK_LAYOUT (widget)->bin_window,
                    NULL, FALSE);
}


/**
 * e_day_view_new:
 * @Returns: a new #EDayView.
 *
 * Creates a new #EDayView.
 **/
GtkWidget *
e_day_view_new (void)
{
    GtkWidget *day_view;

    day_view = GTK_WIDGET (gtk_type_new (e_day_view_get_type ()));

    return day_view;
}


static void
e_day_view_destroy (GtkObject *object)
{
    EDayView *day_view;
    gint day;

    day_view = E_DAY_VIEW (object);

    e_day_view_stop_auto_scroll (day_view);

    if (day_view->client) {
        gtk_signal_disconnect_by_data (GTK_OBJECT (day_view->client), day_view);
        gtk_object_unref (GTK_OBJECT (day_view->client));
        day_view->client = NULL;
    }

    if (day_view->sexp) {
        g_free (day_view->sexp);
        day_view->sexp = NULL;
    }

    if (day_view->query) {
        gtk_signal_disconnect_by_data (GTK_OBJECT (day_view->query), day_view);
        gtk_object_unref (GTK_OBJECT (day_view->query));
        day_view->query = NULL;
    }

    if (day_view->large_font)
        gdk_font_unref (day_view->large_font);

    gdk_cursor_destroy (day_view->normal_cursor);
    gdk_cursor_destroy (day_view->move_cursor);
    gdk_cursor_destroy (day_view->resize_width_cursor);
    gdk_cursor_destroy (day_view->resize_height_cursor);

    e_day_view_free_events (day_view);
    g_array_free (day_view->long_events, TRUE);
    for (day = 0; day < E_DAY_VIEW_MAX_DAYS; day++)
        g_array_free (day_view->events[day], TRUE);

    if (day_view->invisible)
        gtk_widget_destroy (day_view->invisible);
    if (day_view->clipboard_selection)
        g_free (day_view->clipboard_selection);

    GTK_OBJECT_CLASS (parent_class)->destroy (object);
}


static void
e_day_view_realize (GtkWidget *widget)
{
    EDayView *day_view;
    GdkColormap *colormap;
    gboolean success[E_DAY_VIEW_COLOR_LAST];
    gint nfailed;

    if (GTK_WIDGET_CLASS (parent_class)->realize)
        (*GTK_WIDGET_CLASS (parent_class)->realize)(widget);

    day_view = E_DAY_VIEW (widget);
    day_view->main_gc = gdk_gc_new (widget->window);

    colormap = gtk_widget_get_colormap (widget);

    /* Allocate the colors. */
    day_view->colors[E_DAY_VIEW_COLOR_BG_WORKING].red   = 247 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_BG_WORKING].green = 247 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_BG_WORKING].blue  = 244 * 257;

    day_view->colors[E_DAY_VIEW_COLOR_BG_NOT_WORKING].red   = 216 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_BG_NOT_WORKING].green = 216 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_BG_NOT_WORKING].blue  = 214 * 257;

    day_view->colors[E_DAY_VIEW_COLOR_BG_SELECTED].red   = 0 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_BG_SELECTED].green = 0 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_BG_SELECTED].blue  = 156 * 257;

    day_view->colors[E_DAY_VIEW_COLOR_BG_GRID].red   = 148 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_BG_GRID].green = 149 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_BG_GRID].blue  = 148 * 257;

    day_view->colors[E_DAY_VIEW_COLOR_BG_TOP_CANVAS].red   = 148 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_BG_TOP_CANVAS].green = 149 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_BG_TOP_CANVAS].blue  = 148 * 257;

    day_view->colors[E_DAY_VIEW_COLOR_BG_TOP_CANVAS_SELECTED].red   = 65535;
    day_view->colors[E_DAY_VIEW_COLOR_BG_TOP_CANVAS_SELECTED].green = 65535;
    day_view->colors[E_DAY_VIEW_COLOR_BG_TOP_CANVAS_SELECTED].blue  = 65535;

    day_view->colors[E_DAY_VIEW_COLOR_BG_TOP_CANVAS_GRID].red   = 0;
    day_view->colors[E_DAY_VIEW_COLOR_BG_TOP_CANVAS_GRID].green = 0;
    day_view->colors[E_DAY_VIEW_COLOR_BG_TOP_CANVAS_GRID].blue  = 0;

    day_view->colors[E_DAY_VIEW_COLOR_EVENT_VBAR].red   = 0;
    day_view->colors[E_DAY_VIEW_COLOR_EVENT_VBAR].green = 0;
    day_view->colors[E_DAY_VIEW_COLOR_EVENT_VBAR].blue  = 65535;

    day_view->colors[E_DAY_VIEW_COLOR_EVENT_BACKGROUND].red   = 65535;
    day_view->colors[E_DAY_VIEW_COLOR_EVENT_BACKGROUND].green = 65535;
    day_view->colors[E_DAY_VIEW_COLOR_EVENT_BACKGROUND].blue  = 65535;

    day_view->colors[E_DAY_VIEW_COLOR_EVENT_BORDER].red   = 0;
    day_view->colors[E_DAY_VIEW_COLOR_EVENT_BORDER].green = 0;
    day_view->colors[E_DAY_VIEW_COLOR_EVENT_BORDER].blue  = 0;

    day_view->colors[E_DAY_VIEW_COLOR_LONG_EVENT_BACKGROUND].red   = 213 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_LONG_EVENT_BACKGROUND].green = 213 * 257;
    day_view->colors[E_DAY_VIEW_COLOR_LONG_EVENT_BACKGROUND].blue  = 213 * 257;

    day_view->colors[E_DAY_VIEW_COLOR_LONG_EVENT_BORDER].red   = 0;
    day_view->colors[E_DAY_VIEW_COLOR_LONG_EVENT_BORDER].green = 0;
    day_view->colors[E_DAY_VIEW_COLOR_LONG_EVENT_BORDER].blue  = 0;

    nfailed = gdk_colormap_alloc_colors (colormap, day_view->colors,
                         E_DAY_VIEW_COLOR_LAST, FALSE,
                         TRUE, success);
    if (nfailed)
        g_warning ("Failed to allocate all colors");


    /* Create the pixmaps. */
    day_view->reminder_icon = gdk_pixmap_colormap_create_from_xpm_d (NULL, colormap, &day_view->reminder_mask, NULL, bell_xpm);
    day_view->recurrence_icon = gdk_pixmap_colormap_create_from_xpm_d (NULL, colormap, &day_view->recurrence_mask, NULL, recur_xpm);



    /* Set the canvas item colors. */
    gnome_canvas_item_set (day_view->resize_long_event_rect_item,
                   "fill_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BACKGROUND],
                   "outline_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BORDER],
                   NULL);

    gnome_canvas_item_set (day_view->drag_long_event_rect_item,
                   "fill_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BACKGROUND],
                   "outline_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BORDER],
                   NULL);


    gnome_canvas_item_set (day_view->resize_rect_item,
                   "fill_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BACKGROUND],
                   "outline_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BORDER],
                   NULL);

    gnome_canvas_item_set (day_view->resize_bar_item,
                   "fill_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_VBAR],
                   "outline_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BORDER],
                   NULL);

    gnome_canvas_item_set (day_view->main_canvas_top_resize_bar_item,
                   "fill_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_VBAR],
                   "outline_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BORDER],
                   NULL);

    gnome_canvas_item_set (day_view->main_canvas_bottom_resize_bar_item,
                   "fill_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_VBAR],
                   "outline_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BORDER],
                   NULL);


    gnome_canvas_item_set (day_view->drag_rect_item,
                   "fill_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BACKGROUND],
                   "outline_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BORDER],
                   NULL);

    gnome_canvas_item_set (day_view->drag_bar_item,
                   "fill_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_VBAR],
                   "outline_color_gdk", &day_view->colors[E_DAY_VIEW_COLOR_EVENT_BORDER],
                   NULL);
}


static void
e_day_view_unrealize (GtkWidget *widget)
{
    EDayView *day_view;
    GdkColormap *colormap;
    gint i;

    day_view = E_DAY_VIEW (widget);

    gdk_gc_unref (day_view->main_gc);
    day_view->main_gc = NULL;

    colormap = gtk_widget_get_colormap (widget);
    for (i = 0; i < E_DAY_VIEW_COLOR_LAST; i++)
        gdk_colors_free (colormap, &day_view->colors[i].pixel, 1, 0);

    gdk_pixmap_unref (day_view->reminder_icon);
    day_view->reminder_icon = NULL;
    gdk_pixmap_unref (day_view->recurrence_icon);
    day_view->recurrence_icon = NULL;

    if (GTK_WIDGET_CLASS (parent_class)->unrealize)
        (*GTK_WIDGET_CLASS (parent_class)->unrealize)(widget);
}


static void
e_day_view_style_set (GtkWidget *widget,
              GtkStyle  *previous_style)
{
    EDayView *day_view;
    GdkFont *font;
    gint top_rows, top_canvas_height;
    gint hour, max_large_hour_width;
    gint minute, max_minute_width, i;
    gint month, day, width;
    gint longest_month_width, longest_abbreviated_month_width;
    gint longest_weekday_width, longest_abbreviated_weekday_width;
    struct tm date_tm;
    gchar buffer[128];
    gint times_width;

    if (GTK_WIDGET_CLASS (parent_class)->style_set)
        (*GTK_WIDGET_CLASS (parent_class)->style_set)(widget, previous_style);

    day_view = E_DAY_VIEW (widget);
    font = widget->style->font;

    /* Recalculate the height of each row based on the font size. */
    day_view->row_height = font->ascent + font->descent + E_DAY_VIEW_EVENT_BORDER_HEIGHT + E_DAY_VIEW_EVENT_Y_PAD * 2 + 2 /* FIXME */;
    day_view->row_height = MAX (day_view->row_height, E_DAY_VIEW_ICON_HEIGHT + E_DAY_VIEW_ICON_Y_PAD + 2);
    GTK_LAYOUT (day_view->main_canvas)->vadjustment->step_increment = day_view->row_height;

    day_view->top_row_height = font->ascent + font->descent + E_DAY_VIEW_LONG_EVENT_BORDER_HEIGHT * 2 + E_DAY_VIEW_LONG_EVENT_Y_PAD * 2 + E_DAY_VIEW_TOP_CANVAS_Y_GAP;
    day_view->top_row_height = MAX (day_view->top_row_height, E_DAY_VIEW_ICON_HEIGHT + E_DAY_VIEW_ICON_Y_PAD + 2 + E_DAY_VIEW_TOP_CANVAS_Y_GAP);

    /* Set the height of the top canvas based on the row height and the
       number of rows needed (min 1 + 1 for the dates + 1 space for DnD).*/
    top_rows = MAX (1, day_view->rows_in_top_display);
    top_canvas_height = (top_rows + 2) * day_view->top_row_height;
    gtk_widget_set_usize (day_view->top_canvas, -1, top_canvas_height);

    /* Find the longest full & abbreviated month names. */
    memset (&date_tm, 0, sizeof (date_tm));
    date_tm.tm_year = 100;
    date_tm.tm_mday = 1;
    date_tm.tm_isdst = -1;

    longest_month_width = 0;
    longest_abbreviated_month_width = 0;
    for (month = 0; month < 12; month++) {
        date_tm.tm_mon = month;

        strftime (buffer, sizeof (buffer), "%B", &date_tm);
        width = gdk_string_width (font, buffer);
        if (width > longest_month_width) {
            longest_month_width = width;
            day_view->longest_month_name = month;
        }

        strftime (buffer, sizeof (buffer), "%b", &date_tm);
        width = gdk_string_width (font, buffer);
        if (width > longest_abbreviated_month_width) {
            longest_abbreviated_month_width = width;
            day_view->longest_abbreviated_month_name = month;
        }
    }

    /* Find the longest full & abbreviated weekday names. */
    memset (&date_tm, 0, sizeof (date_tm));
    date_tm.tm_year = 100;
    date_tm.tm_mon = 0;
    date_tm.tm_isdst = -1;

    longest_weekday_width = 0;
    longest_abbreviated_weekday_width = 0;
    for (day = 0; day < 7; day++) {
        date_tm.tm_mday = 2 + day;
        date_tm.tm_wday = day;

        strftime (buffer, sizeof (buffer), "%A", &date_tm);
        width = gdk_string_width (font, buffer);
        if (width > longest_weekday_width) {
            longest_weekday_width = width;
            day_view->longest_weekday_name = day;
        }

        strftime (buffer, sizeof (buffer), "%a", &date_tm);
        width = gdk_string_width (font, buffer);
        if (width > longest_abbreviated_weekday_width) {
            longest_abbreviated_weekday_width = width;
            day_view->longest_abbreviated_weekday_name = day;
        }
    }


    /* Calculate the widths of all the time strings necessary. */
    day_view->max_small_hour_width = 0;
    max_large_hour_width = 0;
    for (hour = 0; hour < 24; hour++) {
        g_snprintf (buffer, sizeof (buffer), "%02i", hour);
        day_view->small_hour_widths[hour] = gdk_string_width (font, buffer);
        day_view->max_small_hour_width = MAX (day_view->max_small_hour_width, day_view->small_hour_widths[hour]);
    }

    max_minute_width = 0;
    for (minute = 0, i = 0; minute < 60; minute += 5, i++) {
        gint minute_width;

        g_snprintf (buffer, sizeof (buffer), "%02i", minute);
        minute_width = gdk_string_width (font, buffer);
        max_minute_width = MAX (max_minute_width, minute_width);
    }
    day_view->max_minute_width = max_minute_width;
    day_view->colon_width = gdk_string_width (font, ":");
    day_view->digit_width = gdk_string_width (font, "0");

    day_view->am_string_width = gdk_string_width (font,
                              day_view->am_string);
    day_view->pm_string_width = gdk_string_width (font,
                              day_view->pm_string);

    /* Calculate the width of the time column. */
    times_width = e_day_view_time_item_get_column_width (E_DAY_VIEW_TIME_ITEM (day_view->time_canvas_item));
    gtk_widget_set_usize (day_view->time_canvas, times_width, -1);

    /* Set the font of all the EText items. */
    e_day_view_foreach_event (day_view, e_day_view_set_event_font_cb,
                  font);

    /* Set the fonts for the text items used when dragging. */
    gnome_canvas_item_set (day_view->drag_long_event_item,
                   "font_gdk", GTK_WIDGET (day_view)->style->font,
                   NULL);

    gnome_canvas_item_set (day_view->drag_item,
                   "font_gdk", GTK_WIDGET (day_view)->style->font,
                   NULL);
}


static gboolean
e_day_view_set_event_font_cb        (EDayView   *day_view,
                     gint        day,
                     gint        event_num,
                     gpointer    data)
{
    EDayViewEvent *event;
    GdkFont *font = data;

    if (day == E_DAY_VIEW_LONG_EVENT)
        event = &g_array_index (day_view->long_events,
                    EDayViewEvent, event_num);
    else
        event = &g_array_index (day_view->events[day],
                    EDayViewEvent, event_num);

    if (event->canvas_item)
        gnome_canvas_item_set (event->canvas_item,
                       "font_gdk", font,
                       NULL);

    return TRUE;
}


/* This recalculates the sizes of each column. */
static void
e_day_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
{
    EDayView *day_view;
    gint day, scroll_y;
    gboolean need_reshape;
    gdouble old_x2, old_y2, new_x2, new_y2;

#if 0
    g_print ("In e_day_view_size_allocate\n");
#endif
    day_view = E_DAY_VIEW (widget);

    (*GTK_WIDGET_CLASS (parent_class)->size_allocate) (widget, allocation);

    e_day_view_recalc_cell_sizes (day_view);

    /* Set the scroll region of the top canvas to its allocated size. */
    gnome_canvas_get_scroll_region (GNOME_CANVAS (day_view->top_canvas),
                    NULL, NULL, &old_x2, &old_y2);
    new_x2 = day_view->top_canvas->allocation.width - 1;
    new_y2 = day_view->top_canvas->allocation.height - 1;
    if (old_x2 != new_x2 || old_y2 != new_y2)
        gnome_canvas_set_scroll_region (GNOME_CANVAS (day_view->top_canvas),
                        0, 0, new_x2, new_y2);

    need_reshape = e_day_view_update_scroll_regions (day_view);

    /* Scroll to the start of the working day, if this is the initial
       allocation. */
    if (day_view->scroll_to_work_day) {
        scroll_y = e_day_view_convert_time_to_position (day_view, day_view->work_day_start_hour, day_view->work_day_start_minute);
        gnome_canvas_scroll_to (GNOME_CANVAS (day_view->main_canvas),
                    0, scroll_y);
        day_view->scroll_to_work_day = FALSE;
    }

    /* Flag that we need to reshape the events. Note that changes in height
       don't matter, since the rows are always the same height. */
    if (need_reshape) {
        day_view->long_events_need_reshape = TRUE;
        for (day = 0; day < E_DAY_VIEW_MAX_DAYS; day++)
            day_view->need_reshape[day] = TRUE;

        e_day_view_check_layout (day_view);
    }
}


static void
e_day_view_recalc_cell_sizes    (EDayView   *day_view)
{
    /* An array of dates, one for each month in the year 2000. They must
       all be Sundays. */
    static const int days[12] = { 23, 20, 19, 23, 21, 18,
                      23, 20, 17, 22, 19, 24 };
    gfloat width, offset;
    gint day, max_width;
    struct tm date_tm;
    GdkFont *font;
    char buffer[128];

    g_return_if_fail (((GtkWidget*)day_view)->style != NULL);
    font = GTK_WIDGET (day_view)->style->font;

    /* Calculate the column sizes, using floating point so that pixels
       get divided evenly. Note that we use one more element than the
       number of columns, to make it easy to get the column widths. */
    width = day_view->main_canvas->allocation.width;
    width /= day_view->days_shown;
    offset = 0;
    for (day = 0; day <= day_view->days_shown; day++) {
        day_view->day_offsets[day] = floor (offset + 0.5);
        offset += width;
    }

    /* Calculate the days widths based on the offsets. */
    for (day = 0; day < day_view->days_shown; day++) {
        day_view->day_widths[day] = day_view->day_offsets[day + 1] - day_view->day_offsets[day];
    }

    /* Determine which date format to use, based on the column widths.
       We want to check the widths using the longest full or abbreviated
       month name and the longest full or abbreviated weekday name, as
       appropriate. */
    max_width = day_view->day_widths[0];

    memset (&date_tm, 0, sizeof (date_tm));
    date_tm.tm_year = 100;

    /* Try "Thursday 21 January". */
    date_tm.tm_mon = day_view->longest_month_name;
    date_tm.tm_mday = days[date_tm.tm_mon]
        + day_view->longest_weekday_name;
    date_tm.tm_wday = day_view->longest_weekday_name;
    date_tm.tm_isdst = -1;
    /* strftime format %A = full weekday name, %d = day of month,
       %B = full month name. Don't use any other specifiers. */
    strftime (buffer, sizeof (buffer), _("%A %d %B"), &date_tm);
    if (gdk_string_width (font, buffer) < max_width) {
        day_view->date_format = E_DAY_VIEW_DATE_FULL;
        return;
    }

    /* Try "Thu 21 Jan". */
    date_tm.tm_mon = day_view->longest_abbreviated_month_name;
    date_tm.tm_mday = days[date_tm.tm_mon]
        + day_view->longest_abbreviated_weekday_name;
    date_tm.tm_wday = day_view->longest_abbreviated_weekday_name;
    date_tm.tm_isdst = -1;
    /* strftime format %a = abbreviated weekday name, %d = day of month,
       %b = abbreviated month name. Don't use any other specifiers. */
    strftime (buffer, sizeof (buffer), _("%a %d %b"), &date_tm);
    if (gdk_string_width (font, buffer) < max_width) {
        day_view->date_format = E_DAY_VIEW_DATE_ABBREVIATED;
        return;
    }

    /* Try "23 Jan". */
    date_tm.tm_mon = day_view->longest_abbreviated_month_name;
    date_tm.tm_mday = 23;
    date_tm.tm_wday = 0;
    date_tm.tm_isdst = -1;
    /* strftime format %d = day of month, %b = abbreviated month name.
       Don't use any other specifiers. */
    strftime (buffer, sizeof (buffer), _("%d %b"), &date_tm);
    if (gdk_string_width (font, buffer) < max_width)
        day_view->date_format = E_DAY_VIEW_DATE_NO_WEEKDAY;
    else
        day_view->date_format = E_DAY_VIEW_DATE_SHORT;
}


static gint
e_day_view_focus_in (GtkWidget *widget, GdkEventFocus *event)
{
    EDayView *day_view;

    g_return_val_if_fail (widget != NULL, FALSE);
    g_return_val_if_fail (E_IS_DAY_VIEW (widget), FALSE);
    g_return_val_if_fail (event != NULL, FALSE);

    day_view = E_DAY_VIEW (widget);

    GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);

    gtk_widget_queue_draw (day_view->top_canvas);
    gtk_widget_queue_draw (day_view->main_canvas);

    return FALSE;
}


static gint
e_day_view_focus_out (GtkWidget *widget, GdkEventFocus *event)
{
    EDayView *day_view;

    g_return_val_if_fail (widget != NULL, FALSE);
    g_return_val_if_fail (E_IS_DAY_VIEW (widget), FALSE);
    g_return_val_if_fail (event != NULL, FALSE);

    day_view = E_DAY_VIEW (widget);

    GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);

    gtk_widget_queue_draw (day_view->top_canvas);
    gtk_widget_queue_draw (day_view->main_canvas);

    return FALSE;
}


void
e_day_view_set_calendar     (EDayView   *day_view,
                 GnomeCalendar  *calendar)
{
    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    day_view->calendar = calendar;
}


/* Callback used when a component is updated in the live query */
static void
query_obj_updated_cb (CalQuery *query, const char *uid,
              gboolean query_in_progress, int n_scanned, int total,
              gpointer data)
{
    EDayView *day_view;
    EDayViewEvent *event;
    CalComponent *comp;
    CalClientGetStatus status;
    gint day, event_num;

    day_view = E_DAY_VIEW (data);

    /* If our time hasn't been set yet, just return. */
    if (day_view->lower == 0 && day_view->upper == 0)
        return;

    /* Get the event from the server. */
    status = cal_client_get_object (day_view->client, uid, &comp);

    switch (status) {
    case CAL_CLIENT_GET_SUCCESS:
        /* Everything is fine */
        break;

    case CAL_CLIENT_GET_SYNTAX_ERROR:
        g_message ("query_obj_updated_cb(): Syntax error when getting object `%s'", uid);
        return;

    case CAL_CLIENT_GET_NOT_FOUND:
        /* The object is no longer in the server, so do nothing */
        return;

    default:
        g_assert_not_reached ();
        return;
    }

    /* If the event already exists and the dates didn't change, we can
       update the event fairly easily without changing the events arrays
       or computing a new layout. */
    if (e_day_view_find_event_from_uid (day_view, uid, &day, &event_num)) {
        if (day == E_DAY_VIEW_LONG_EVENT)
            event = &g_array_index (day_view->long_events,
                        EDayViewEvent, event_num);
        else
            event = &g_array_index (day_view->events[day],
                        EDayViewEvent, event_num);

        if (!cal_component_has_recurrences (comp)
            && !cal_component_has_recurrences (event->comp)
            && cal_component_event_dates_match (comp, event->comp)) {
#if 0
            g_print ("updated object's dates unchanged\n");
#endif
            e_day_view_foreach_event_with_uid (day_view, uid, e_day_view_update_event_cb, comp);
            gtk_object_unref (GTK_OBJECT (comp));
            gtk_widget_queue_draw (day_view->top_canvas);
            gtk_widget_queue_draw (day_view->main_canvas);
            return;
        }

        /* The dates have changed, so we need to remove the
           old occurrrences before adding the new ones. */
#if 0
        g_print ("dates changed - removing occurrences\n");
#endif
        e_day_view_foreach_event_with_uid (day_view, uid,
                           e_day_view_remove_event_cb,
                           NULL);
    }

    /* Add the occurrences of the event. */
    cal_recur_generate_instances (comp, day_view->lower,
                      day_view->upper,
                      e_day_view_add_event, day_view,
                      cal_client_resolve_tzid, day_view->client);
    gtk_object_unref (GTK_OBJECT (comp));

    e_day_view_check_layout (day_view);

    gtk_widget_queue_draw (day_view->top_canvas);
    gtk_widget_queue_draw (day_view->main_canvas);
}

/* Callback used when a component is removed from the live query */
static void
query_obj_removed_cb (CalQuery *query, const char *uid, gpointer data)
{
    EDayView *day_view;

    day_view = E_DAY_VIEW (data);

    e_day_view_foreach_event_with_uid (day_view, uid,
                       e_day_view_remove_event_cb, NULL);

    e_day_view_check_layout (day_view);
    gtk_widget_queue_draw (day_view->top_canvas);
    gtk_widget_queue_draw (day_view->main_canvas);
}

/* Callback used when a query ends */
static void
query_query_done_cb (CalQuery *query, CalQueryDoneStatus status, const char *error_str, gpointer data)
{
    EDayView *day_view;

    day_view = E_DAY_VIEW (data);

    /* FIXME */

    if (status != CAL_QUERY_DONE_SUCCESS)
        fprintf (stderr, "query done: %s\n", error_str);
}

/* Callback used when an evaluation error occurs when running a query */
static void
query_eval_error_cb (CalQuery *query, const char *error_str, gpointer data)
{
    EDayView *day_view;

    day_view = E_DAY_VIEW (data);

    /* FIXME */

    fprintf (stderr, "eval error: %s\n", error_str);
}


/* Builds a complete query sexp for the day view by adding the predicates to
 * filter only for VEVENTS that fit in the day view's time range.
 */
static char *
adjust_query_sexp (EDayView *day_view, const char *sexp)
{
    char *start, *end;
    char *new_sexp;

    /* If the dates have not been set yet, we just want an empty query. */
    if (day_view->lower == 0 || day_view->upper == 0)
        return g_strdup ("#f");

    start = isodate_from_time_t (day_view->lower);
    end = isodate_from_time_t (day_view->upper);

    new_sexp = g_strdup_printf ("(and (= (get-vtype) \"VEVENT\")"
                    "     (occur-in-time-range? (make-time \"%s\")"
                    "                           (make-time \"%s\"))"
                    "     %s)",
                    start, end,
                    sexp);

    g_free (start);
    g_free (end);

    return new_sexp;
}


/* Restarts a query for the day view */
static void
update_query (EDayView *day_view)
{
    char *real_sexp;

    e_day_view_free_events (day_view);
    gtk_widget_queue_draw (day_view->top_canvas);
    gtk_widget_queue_draw (day_view->main_canvas);

    if (!(day_view->client
          && cal_client_get_load_state (day_view->client) == CAL_CLIENT_LOAD_LOADED))
        return;

    if (day_view->query) {
        gtk_signal_disconnect_by_data (GTK_OBJECT (day_view->query), day_view);
        gtk_object_unref (GTK_OBJECT (day_view->query));
    }

    g_assert (day_view->sexp != NULL);
    real_sexp = adjust_query_sexp (day_view, day_view->sexp);

    day_view->query = cal_client_get_query (day_view->client, real_sexp);
    g_free (real_sexp);

    if (!day_view->query) {
        g_message ("update_query(): Could not create the query");
        return;
    }

    gtk_signal_connect (GTK_OBJECT (day_view->query), "obj_updated",
                GTK_SIGNAL_FUNC (query_obj_updated_cb), day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->query), "obj_removed",
                GTK_SIGNAL_FUNC (query_obj_removed_cb), day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->query), "query_done",
                GTK_SIGNAL_FUNC (query_query_done_cb), day_view);
    gtk_signal_connect (GTK_OBJECT (day_view->query), "eval_error",
                GTK_SIGNAL_FUNC (query_eval_error_cb), day_view);
}

/* Callback used when the calendar client finishes opening */
static void
cal_opened_cb (CalClient *client, CalClientOpenStatus status, gpointer data)
{
    EDayView *day_view;

    day_view = E_DAY_VIEW (data);

    if (status != CAL_CLIENT_OPEN_SUCCESS)
        return;

    update_query (day_view);
}

/**
 * e_day_view_set_cal_client:
 * @day_view: A day view.
 * @client: A calendar client interface object.
 *
 * Sets the calendar client interface object that a day view will monitor.
 **/
void
e_day_view_set_cal_client   (EDayView   *day_view,
                 CalClient  *client)
{
    g_return_if_fail (day_view != NULL);
    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    if (client == day_view->client)
        return;

    if (client)
        g_return_if_fail (IS_CAL_CLIENT (client));

    if (client)
        gtk_object_ref (GTK_OBJECT (client));

    if (day_view->client) {
        gtk_signal_disconnect_by_data (GTK_OBJECT (day_view->client), day_view);
        gtk_object_unref (GTK_OBJECT (day_view->client));
    }

    day_view->client = client;

    if (day_view->client) {
        if (cal_client_get_load_state (day_view->client) == CAL_CLIENT_LOAD_LOADED)
            update_query (day_view);
        else
            gtk_signal_connect (GTK_OBJECT (day_view->client), "cal_opened",
                        GTK_SIGNAL_FUNC (cal_opened_cb), day_view);
    }
}

/**
 * e_day_view_set_query:
 * @day_view: A day view.
 * @sexp: S-expression that defines the query.
 * 
 * Sets the query sexp that the day view will use for filtering the displayed
 * events.
 **/
void
e_day_view_set_query (EDayView *day_view, const char *sexp)
{
    g_return_if_fail (day_view != NULL);
    g_return_if_fail (E_IS_DAY_VIEW (day_view));
    g_return_if_fail (sexp != NULL);

    if (day_view->sexp)
        g_free (day_view->sexp);

    day_view->sexp = g_strdup (sexp);

    update_query (day_view);
}


static gboolean
e_day_view_update_event_cb (EDayView *day_view,
                gint day,
                gint event_num,
                gpointer data)
{
    EDayViewEvent *event;
    CalComponent *comp;

    comp = data;
#if 0
    g_print ("In e_day_view_update_event_cb day:%i event_num:%i\n",
         day, event_num);
#endif
    if (day == E_DAY_VIEW_LONG_EVENT) {
        event = &g_array_index (day_view->long_events, EDayViewEvent,
                    event_num);
    } else {
        event = &g_array_index (day_view->events[day], EDayViewEvent,
                    event_num);
    }

    gtk_object_unref (GTK_OBJECT (event->comp));
    event->comp = comp;
    gtk_object_ref (GTK_OBJECT (comp));

    if (day == E_DAY_VIEW_LONG_EVENT) {
        e_day_view_update_long_event_label (day_view, event_num);
        e_day_view_reshape_long_event (day_view, event_num);
    } else {
        e_day_view_update_event_label (day_view, day, event_num);
        e_day_view_reshape_day_event (day_view, day, event_num);
    }
    return TRUE;
}


/* This calls a given function for each event instance (in both views).
   If the callback returns FALSE the iteration is stopped.
   Note that it is safe for the callback to remove the event (since we
   step backwards through the arrays). */
static void
e_day_view_foreach_event        (EDayView   *day_view,
                     EDayViewForeachEventCallback callback,
                     gpointer    data)
{
    EDayViewEvent *event;
    gint day, event_num;

    for (day = 0; day < day_view->days_shown; day++) {
        for (event_num = day_view->events[day]->len - 1;
             event_num >= 0;
             event_num--) {
            event = &g_array_index (day_view->events[day],
                        EDayViewEvent, event_num);

            if (!(*callback) (day_view, day, event_num, data))
                return;
        }
    }

    for (event_num = day_view->long_events->len - 1;
         event_num >= 0;
         event_num--) {
        event = &g_array_index (day_view->long_events,
                    EDayViewEvent, event_num);

        if (!(*callback) (day_view, E_DAY_VIEW_LONG_EVENT, event_num,
                  data))
            return;
    }
}


/* This calls a given function for each event instance that matches the given
   uid. If the callback returns FALSE the iteration is stopped.
   Note that it is safe for the callback to remove the event (since we
   step backwards through the arrays). */
static void
e_day_view_foreach_event_with_uid (EDayView *day_view,
                   const gchar *uid,
                   EDayViewForeachEventCallback callback,
                   gpointer data)
{
    EDayViewEvent *event;
    gint day, event_num;
    const char *u;

    for (day = 0; day < day_view->days_shown; day++) {
        for (event_num = day_view->events[day]->len - 1;
             event_num >= 0;
             event_num--) {
            event = &g_array_index (day_view->events[day],
                        EDayViewEvent, event_num);

            cal_component_get_uid (event->comp, &u);
            if (uid && !strcmp (uid, u)) {
                if (!(*callback) (day_view, day, event_num,
                          data))
                    return;
            }
        }
    }

    for (event_num = day_view->long_events->len - 1;
         event_num >= 0;
         event_num--) {
        event = &g_array_index (day_view->long_events,
                    EDayViewEvent, event_num);

        cal_component_get_uid (event->comp, &u);
        if (u && !strcmp (uid, u)) {
            if (!(*callback) (day_view, E_DAY_VIEW_LONG_EVENT,
                      event_num, data))
                return;
        }
    }
}


static gboolean
e_day_view_remove_event_cb (EDayView *day_view,
                gint day,
                gint event_num,
                gpointer data)
{
    EDayViewEvent *event;

#if 0
    g_print ("In e_day_view_remove_event_cb day:%i event_num:%i\n",
         day, event_num);
#endif

    if (day == E_DAY_VIEW_LONG_EVENT)
        event = &g_array_index (day_view->long_events,
                    EDayViewEvent, event_num);
    else
        event = &g_array_index (day_view->events[day],
                    EDayViewEvent, event_num);

    /* If we were editing this event, set editing_event_num to -1 so
       on_editing_stopped doesn't try to update the event. */
    if (day_view->editing_event_day == day
        && day_view->editing_event_num == event_num)
        day_view->editing_event_day = -1;

    if (event->canvas_item)
        gtk_object_destroy (GTK_OBJECT (event->canvas_item));
    gtk_object_unref (GTK_OBJECT (event->comp));

    if (day == E_DAY_VIEW_LONG_EVENT) {
        g_array_remove_index (day_view->long_events, event_num);
        day_view->long_events_need_layout = TRUE;
    } else {
        g_array_remove_index (day_view->events[day], event_num);
        day_view->need_layout[day] = TRUE;
    }
    return TRUE;
}


/* This updates the text shown for an event. If the event start or end do not
   lie on a row boundary, the time is displayed before the summary. */
static void
e_day_view_update_event_label (EDayView *day_view,
                   gint day,
                   gint event_num)
{
    EDayViewEvent *event;
    char *text, *start_suffix, *end_suffix;
    gboolean free_text = FALSE, editing_event = FALSE;
    gint offset;
    gint start_hour, start_display_hour, start_minute, start_suffix_width;
    gint end_hour, end_display_hour, end_minute, end_suffix_width;
    CalComponentText summary;

    event = &g_array_index (day_view->events[day], EDayViewEvent,
                event_num);

    /* If the event isn't visible just return. */
    if (!event->canvas_item)
        return;

    cal_component_get_summary (event->comp, &summary);
    text = summary.value ? (char*) summary.value : "";

    if (day_view->editing_event_day == day
        && day_view->editing_event_num == event_num)
        editing_event = TRUE;

    if (!editing_event
        && (event->start_minute % day_view->mins_per_row != 0
        || (day_view->show_event_end_times
            && event->end_minute % day_view->mins_per_row != 0))) {
        offset = day_view->first_hour_shown * 60
            + day_view->first_minute_shown;
        start_minute = offset + event->start_minute;
        end_minute = offset + event->end_minute;

        start_hour = start_minute / 60;
        start_minute = start_minute % 60;

        end_hour = end_minute / 60;
        end_minute = end_minute % 60;

        e_day_view_convert_time_to_display (day_view, start_hour,
                            &start_display_hour,
                            &start_suffix,
                            &start_suffix_width);
        e_day_view_convert_time_to_display (day_view, end_hour,
                            &end_display_hour,
                            &end_suffix,
                            &end_suffix_width);

        if (day_view->use_24_hour_format) {
            if (day_view->show_event_end_times) {
                /* 24 hour format with end time. */
                text = g_strdup_printf
                    ("%2i:%02i-%2i:%02i %s",
                     start_display_hour, start_minute,
                     end_display_hour, end_minute,
                     text);
            } else {
                /* 24 hour format without end time. */
                text = g_strdup_printf
                    ("%2i:%02i %s",
                     start_display_hour, start_minute,
                     text);
            }
        } else {
            if (day_view->show_event_end_times) {
                /* 12 hour format with end time. */
                text = g_strdup_printf
                    ("%2i:%02i%s-%2i:%02i%s %s",
                     start_display_hour, start_minute,
                     start_suffix,
                     end_display_hour, end_minute,
                     end_suffix,
                     text);
            } else {
                /* 12 hour format without end time. */
                text = g_strdup_printf
                    ("%2i:%02i%s %s",
                     start_display_hour, start_minute,
                     start_suffix,
                     text);
            }
        }

        free_text = TRUE;
    }

    gnome_canvas_item_set (event->canvas_item,
                   "text", text,
                   NULL);

    if (free_text)
        g_free (text);
}


static void
e_day_view_update_long_event_label (EDayView *day_view,
                    gint      event_num)
{
    EDayViewEvent *event;
    CalComponentText summary;

    event = &g_array_index (day_view->long_events, EDayViewEvent,
                event_num);

    /* If the event isn't visible just return. */
    if (!event->canvas_item)
        return;

    cal_component_get_summary (event->comp, &summary);
    gnome_canvas_item_set (event->canvas_item,
                   "text", summary.value ? summary.value : "",
                   NULL);
}


/* Finds the day and index of the event with the given canvas item.
   If is is a long event, -1 is returned as the day.
   Returns TRUE if the event was found. */
static gboolean
e_day_view_find_event_from_item (EDayView *day_view,
                 GnomeCanvasItem *item,
                 gint *day_return,
                 gint *event_num_return)
{
    EDayViewEvent *event;
    gint day, event_num;

    for (day = 0; day < day_view->days_shown; day++) {
        for (event_num = 0; event_num < day_view->events[day]->len;
             event_num++) {
            event = &g_array_index (day_view->events[day],
                        EDayViewEvent, event_num);
            if (event->canvas_item == item) {
                *day_return = day;
                *event_num_return = event_num;
                return TRUE;
            }
        }
    }

    for (event_num = 0; event_num < day_view->long_events->len;
         event_num++) {
        event = &g_array_index (day_view->long_events,
                    EDayViewEvent, event_num);
        if (event->canvas_item == item) {
            *day_return = E_DAY_VIEW_LONG_EVENT;
            *event_num_return = event_num;
            return TRUE;
        }
    }

    return FALSE;
}


/* Finds the day and index of the event with the given uid.
   If is is a long event, E_DAY_VIEW_LONG_EVENT is returned as the day.
   Returns TRUE if an event with the uid was found.
   Note that for recurring events there may be several EDayViewEvents, one
   for each instance, all with the same iCalObject and uid. So only use this
   function if you know the event doesn't recur or you are just checking to
   see if any events with the uid exist. */
static gboolean
e_day_view_find_event_from_uid (EDayView *day_view,
                const gchar *uid,
                gint *day_return,
                gint *event_num_return)
{
    EDayViewEvent *event;
    gint day, event_num;
    const char *u;

    for (day = 0; day < day_view->days_shown; day++) {
        for (event_num = 0; event_num < day_view->events[day]->len;
             event_num++) {
            event = &g_array_index (day_view->events[day],
                        EDayViewEvent, event_num);

            cal_component_get_uid (event->comp, &u);
            if (u && !strcmp (uid, u)) {
                *day_return = day;
                *event_num_return = event_num;
                return TRUE;
            }
        }
    }

    for (event_num = 0; event_num < day_view->long_events->len;
         event_num++) {
        event = &g_array_index (day_view->long_events,
                    EDayViewEvent, event_num);

        cal_component_get_uid (event->comp, &u);
        if (u && !strcmp (uid, u)) {
            *day_return = E_DAY_VIEW_LONG_EVENT;
            *event_num_return = event_num;
            return TRUE;
        }
    }

    return FALSE;
}


/* This sets the selected time range. The EDayView will show the day or week
   corresponding to the start time. If the start_time & end_time are not equal
   and are both visible in the view, then the selection is set to those times,
   otherwise it is set to 1 hour from the start of the working day. */
void
e_day_view_set_selected_time_range  (EDayView   *day_view,
                     time_t      start_time,
                     time_t      end_time)
{
    time_t lower;
    gint start_row, start_col, end_row, end_col;
    gboolean need_redraw = FALSE, start_in_grid, end_in_grid;

    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    /* Calculate the first day that should be shown, based on start_time
       and the days_shown setting. If we are showing 1 day it is just the
       start of the day given by start_time, otherwise it is the previous
       work-week start day. */
    if (!day_view->work_week_view) {
        lower = time_day_begin (start_time);
    } else {
        lower = e_day_view_find_work_week_start (day_view, start_time);
    }

    /* See if we need to change the days shown. */
    if (lower != day_view->lower) {
        e_day_view_recalc_day_starts (day_view, lower);
        update_query (day_view);
    }

    /* Set the selection. */
    start_in_grid = e_day_view_convert_time_to_grid_position (day_view,
                                  start_time,
                                  &start_col,
                                  &start_row);
    end_in_grid = e_day_view_convert_time_to_grid_position (day_view,
                                end_time - 60,
                                &end_col,
                                &end_row);

    /* If either of the times isn't in the grid, or the selection covers
       an entire day, we set the selection to 1 row from the start of the
       working day, in the day corresponding to the start time. */
    if (!start_in_grid || !end_in_grid
        || (start_row == 0 && end_row == day_view->rows - 1)) {
        end_col = start_col;

        start_row = e_day_view_convert_time_to_row (day_view, day_view->work_day_start_hour, day_view->work_day_start_minute);
        start_row = CLAMP (start_row, 0, day_view->rows - 1);
        end_row = start_row;
    }

    if (start_row != day_view->selection_start_row
        || start_col != day_view->selection_start_day) {
        need_redraw = TRUE;
        day_view->selection_in_top_canvas = FALSE;
        day_view->selection_start_row = start_row;
        day_view->selection_start_day = start_col;
    }

    if (end_row != day_view->selection_end_row
        || end_col != day_view->selection_end_day) {
        need_redraw = TRUE;
        day_view->selection_in_top_canvas = FALSE;
        day_view->selection_end_row = end_row;
        day_view->selection_end_day = end_col;
    }

    if (need_redraw) {
        gtk_widget_queue_draw (day_view->top_canvas);
        gtk_widget_queue_draw (day_view->main_canvas);
    }
}


/* Finds the start of the working week which includes the given time. */
static time_t
e_day_view_find_work_week_start     (EDayView   *day_view,
                     time_t      start_time)
{
    GDate date;
    gint weekday, day, i, offset;

    g_date_clear (&date, 1);
    g_date_set_time (&date, start_time);

    /* The start of the work-week is the first working day after the
       week start day. */

    /* Get the weekday corresponding to start_time, 0 (Sun) to 6 (Sat). */
    weekday = g_date_weekday (&date) % 7;

    /* Calculate the first working day of the week, 0 (Sun) to 6 (Sat).
       It will automatically default to the week start day if no days
       are set as working days. */
    day = (day_view->week_start_day + 1) % 7;
    for (i = 0; i < 7; i++) {
        if (day_view->working_days & (1 << day))
            break;
        day = (day + 1) % 7;
    }

    /* Calculate how many days we need to go back to the first workday. */
    offset = (weekday + 7 - day) % 7;

    g_date_subtract_days (&date, offset);

    return time_from_day (g_date_year (&date),
                  g_date_month (&date) - 1,
                  g_date_day (&date));
}


/* Returns the selected time range. */
void
e_day_view_get_selected_time_range  (EDayView   *day_view,
                     time_t     *start_time,
                     time_t     *end_time)
{
    gint start_col, start_row, end_col, end_row;
    time_t start, end;

    start_col = day_view->selection_start_day;
    start_row = day_view->selection_start_row;
    end_col = day_view->selection_end_day;
    end_row = day_view->selection_end_row;

    if (start_col == -1) {
        start_col = 0;
        start_row = 0;
        end_col = 0;
        end_row = 0;
    }

    /* Check if the selection is only in the top canvas, in which case
       we can simply use the day_starts array. */
    if (day_view->selection_in_top_canvas) {
        start = day_view->day_starts[start_col];
        end = day_view->day_starts[end_col + 1];
    } else {
        /* Convert the start col + row into a time. */
        start = e_day_view_convert_grid_position_to_time (day_view, start_col, start_row);
        end = e_day_view_convert_grid_position_to_time (day_view, end_col, end_row + 1);
    }

    if (start_time)
        *start_time = start;

    if (end_time)
        *end_time = end;
}


static void
e_day_view_recalc_day_starts (EDayView *day_view,
                  time_t start_time)
{
    gint day;

    day_view->day_starts[0] = start_time;
    for (day = 1; day <= day_view->days_shown; day++) {
        day_view->day_starts[day] = time_add_day (day_view->day_starts[day - 1], 1);
    }

    day_view->lower = start_time;
    day_view->upper = day_view->day_starts[day_view->days_shown];
}


/* Whether we are displaying a work-week, in which case the display always
   starts on the first day of the working week. */
gboolean
e_day_view_get_work_week_view   (EDayView   *day_view)
{
    g_return_val_if_fail (E_IS_DAY_VIEW (day_view), FALSE);

    return day_view->work_week_view;
}


void
e_day_view_set_work_week_view   (EDayView   *day_view,
                 gboolean    work_week_view)
{
    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    if (day_view->work_week_view == work_week_view)
        return;

    day_view->work_week_view = work_week_view;

    if (day_view->work_week_view)
        e_day_view_recalc_work_week (day_view);
}


gint
e_day_view_get_days_shown   (EDayView   *day_view)
{
    g_return_val_if_fail (E_IS_DAY_VIEW (day_view), -1);

    return day_view->days_shown;
}


void
e_day_view_set_days_shown   (EDayView   *day_view,
                 gint        days_shown)
{
    g_return_if_fail (E_IS_DAY_VIEW (day_view));
    g_return_if_fail (days_shown >= 1);
    g_return_if_fail (days_shown <= E_DAY_VIEW_MAX_DAYS);

    if (day_view->days_shown == days_shown)
        return;

    day_view->days_shown = days_shown;

    /* If the date isn't set, just return. */
    if (day_view->lower == 0 && day_view->upper == 0)
        return;

    e_day_view_recalc_day_starts (day_view, day_view->lower);
    e_day_view_recalc_cell_sizes (day_view);

    update_query (day_view);
}


gint
e_day_view_get_mins_per_row (EDayView   *day_view)
{
    g_return_val_if_fail (E_IS_DAY_VIEW (day_view), -1);

    return day_view->mins_per_row;
}


void
e_day_view_set_mins_per_row (EDayView   *day_view,
                 gint        mins_per_row)
{
    gint day;

    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    if (mins_per_row != 5 && mins_per_row != 10 && mins_per_row != 15
        && mins_per_row != 30 && mins_per_row != 60) {
        g_warning ("Invalid minutes per row setting");
        return;
    }

    if (day_view->mins_per_row == mins_per_row)
        return;

    day_view->mins_per_row = mins_per_row;
    e_day_view_recalc_num_rows (day_view);

    /* If we aren't visible, we'll sort it out later. */
    if (!GTK_WIDGET_VISIBLE (day_view))
        return;

    for (day = 0; day < E_DAY_VIEW_MAX_DAYS; day++)
        day_view->need_layout[day] = TRUE;

    /* We need to update all the day event labels since the start & end
       times may or may not be on row boundaries any more. */
    e_day_view_foreach_event (day_view,
                  e_day_view_set_show_times_cb, NULL);

    /* We must layout the events before updating the scroll region, since
       that will result in a redraw which would crash otherwise. */
    e_day_view_check_layout (day_view);
    gtk_widget_queue_draw (day_view->time_canvas);
    gtk_widget_queue_draw (day_view->main_canvas);

    e_day_view_update_scroll_regions (day_view);
}


/* This specifies the working days in the week. The value is a bitwise
   combination of day flags. Defaults to Mon-Fri. */
EDayViewDays
e_day_view_get_working_days (EDayView   *day_view)
{
    g_return_val_if_fail (E_IS_DAY_VIEW (day_view), 0);

    return day_view->working_days;
}


void
e_day_view_set_working_days (EDayView   *day_view,
                 EDayViewDays    days)
{
    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    if (day_view->working_days == days)
        return;

    day_view->working_days = days;

    if (day_view->work_week_view)
        e_day_view_recalc_work_week (day_view);

    /* We have to do this, as the new working days may have no effect on
       the days shown, but we still want the background color to change. */
    gtk_widget_queue_draw (day_view->main_canvas);
}


static void
e_day_view_recalc_work_week_days_shown  (EDayView   *day_view)
{
    gint first_day, last_day, i, days_shown;
    gboolean has_working_days = FALSE;

    /* Find the first working day in the week, 0 (Sun) to 6 (Sat). */
    first_day = (day_view->week_start_day + 1) % 7;
    for (i = 0; i < 7; i++) {
        if (day_view->working_days & (1 << first_day)) {
            has_working_days = TRUE;
            break;
        }
        first_day = (first_day + 1) % 7;
    }

    if (has_working_days) {
        /* Now find the last working day of the week, backwards. */
        last_day = day_view->week_start_day % 7;
        for (i = 0; i < 7; i++) {
            if (day_view->working_days & (1 << last_day))
                break;
            last_day = (last_day + 6) % 7;
        }
        /* Now calculate the days we need to show to include all the
           working days in the week. Add 1 to make it inclusive. */
        days_shown = (last_day + 7 - first_day) % 7 + 1;
    } else {
        /* If no working days are set, just use 7. */
        days_shown = 7;
    }

    e_day_view_set_days_shown (day_view, days_shown);
}


/* The start and end time of the working day. This only affects the background
   colors. */
void
e_day_view_get_working_day      (EDayView   *day_view,
                     gint       *start_hour,
                     gint       *start_minute,
                     gint       *end_hour,
                     gint       *end_minute)
{
    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    *start_hour = day_view->work_day_start_hour;
    *start_minute = day_view->work_day_start_minute;
    *end_hour = day_view->work_day_end_hour;
    *end_minute = day_view->work_day_end_minute;
}


void
e_day_view_set_working_day      (EDayView   *day_view,
                     gint        start_hour,
                     gint        start_minute,
                     gint        end_hour,
                     gint        end_minute)
{
    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    day_view->work_day_start_hour = start_hour;
    day_view->work_day_start_minute = start_minute;
    day_view->work_day_end_hour = end_hour;
    day_view->work_day_end_minute = end_minute;

    gtk_widget_queue_draw (day_view->main_canvas);
}


/* Whether we use 12-hour of 24-hour format. */
gboolean
e_day_view_get_24_hour_format   (EDayView   *day_view)
{
    g_return_val_if_fail (E_IS_DAY_VIEW (day_view), FALSE);

    return day_view->use_24_hour_format;
}


void
e_day_view_set_24_hour_format   (EDayView   *day_view,
                 gboolean    use_24_hour)
{
    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    if (day_view->use_24_hour_format == use_24_hour)
        return;

    day_view->use_24_hour_format = use_24_hour;

    /* We need to update all the text in the events since they may contain
       the time in the old format. */
    e_day_view_foreach_event (day_view, e_day_view_set_show_times_cb,
                  NULL);

    /* FIXME: We need to re-layout the top canvas since the time
       format affects the sizes. */
    gtk_widget_queue_draw (day_view->time_canvas);
    gtk_widget_queue_draw (day_view->top_canvas);
}


/* Whether we display event end times in the main canvas. */
gboolean
e_day_view_get_show_event_end_times (EDayView   *day_view)
{
    g_return_val_if_fail (E_IS_DAY_VIEW (day_view), TRUE);

    return day_view->show_event_end_times;
}


void
e_day_view_set_show_event_end_times (EDayView   *day_view,
                     gboolean    show)
{
    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    if (day_view->show_event_end_times != show) {
        day_view->show_event_end_times = show;
        e_day_view_foreach_event (day_view,
                      e_day_view_set_show_times_cb, NULL);
    }
}


/* The current timezone. */
icaltimezone*
e_day_view_get_timezone         (EDayView   *day_view)
{
    g_return_val_if_fail (E_IS_DAY_VIEW (day_view), NULL);

    return day_view->zone;
}


void
e_day_view_set_timezone         (EDayView   *day_view,
                     icaltimezone   *zone)
{
    icaltimezone *old_zone;
    struct icaltimetype tt;
    time_t lower;

    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    old_zone = day_view->zone;
    if (old_zone == zone)
        return;

    day_view->zone = zone;

    /* If our time hasn't been set yet, just return. */
    if (day_view->lower == 0 && day_view->upper == 0)
        return;

    /* Recalculate the new start of the first day. We just use exactly
       the same time, but with the new timezone. */
    tt = icaltime_from_timet_with_zone (day_view->lower, FALSE,
                        old_zone);

    lower = icaltime_as_timet_with_zone (tt, zone);

    e_day_view_recalc_day_starts (day_view, lower);
    update_query (day_view);
}


/* This is a callback used to update all day event labels. */
static gboolean
e_day_view_set_show_times_cb        (EDayView   *day_view,
                     gint        day,
                     gint        event_num,
                     gpointer    data)
{
    if (day != E_DAY_VIEW_LONG_EVENT) {
        e_day_view_update_event_label (day_view, day, event_num);
    }

    return TRUE;
}


/* The first day of the week, 0 (Monday) to 6 (Sunday). */
gint
e_day_view_get_week_start_day   (EDayView   *day_view)
{
    g_return_val_if_fail (E_IS_DAY_VIEW (day_view), 0);

    return day_view->week_start_day;
}


void
e_day_view_set_week_start_day   (EDayView   *day_view,
                 gint        week_start_day)
{
    g_return_if_fail (E_IS_DAY_VIEW (day_view));
    g_return_if_fail (week_start_day >= 0);
    g_return_if_fail (week_start_day < 7);

    if (day_view->week_start_day == week_start_day)
        return;

    day_view->week_start_day = week_start_day;

    if (day_view->work_week_view)
        e_day_view_recalc_work_week (day_view);
}

static EDayViewEvent *
get_current_event (EDayView *day_view)
{
    g_return_val_if_fail (E_IS_DAY_VIEW (day_view), NULL);

    if (day_view->editing_event_num == -1)
        return NULL;

    if (day_view->editing_event_day == E_DAY_VIEW_LONG_EVENT)
        return &g_array_index (day_view->long_events,
                       EDayViewEvent,
                       day_view->editing_event_num);
    else
        return &g_array_index (day_view->events[day_view->editing_event_day],
                       EDayViewEvent,
                       day_view->editing_event_num);
}

void
e_day_view_cut_clipboard (EDayView *day_view)
{
    EDayViewEvent *event;
    char *uid;

    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    event = get_current_event (day_view);
    if (event == NULL)
        return;

    e_day_view_copy_clipboard (day_view);
    cal_component_get_uid (event->comp, &uid);
    cal_client_remove_object (day_view->client, uid);
}

void
e_day_view_copy_clipboard (EDayView *day_view)
{
    EDayViewEvent *event;
    char *comp_str;

    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    event = get_current_event (day_view);
    if (event == NULL)
        return;

    comp_str = cal_component_get_as_string (event->comp);
    if (day_view->clipboard_selection != NULL)
        g_free (day_view->clipboard_selection);
    day_view->clipboard_selection = comp_str;
    gtk_selection_owner_set (day_view->invisible, clipboard_atom, GDK_CURRENT_TIME);
}

void
e_day_view_paste_clipboard (EDayView *day_view)
{
    g_return_if_fail (E_IS_DAY_VIEW (day_view));

    gtk_selection_convert (day_view->invisible,
                   clipboard_atom,
                   GDK_SELECTION_TYPE_STRING,
                   GDK_CURRENT_TIME);
}

static void
e_day_view_recalc_work_week (EDayView   *day_view)
{       
    time_t lower;

    /* If we aren't showing the work week, just return. */
    if (!day_view->work_week_view)
        return;

    e_day_view_recalc_work_week_days_shown  (day_view);
    
    /* If the date isn't set, just return. */
    if (day_view->lower == 0 && day_view->upper == 0)
        return;

    lower = e_day_view_find_work_week_start (day_view, day_view->lower);
    if (lower != day_view->lower) {
        /* Reset the selection, as it may disappear. */
        day_view->selection_start_day = -1;

        e_day_view_recalc_day_starts (day_view, lower);
        update_query (day_view);

        /* This updates the date navigator. */
        e_day_view_update_calendar_selection_time (day_view);
    }
}


static gboolean
e_day_view_update_scroll_regions (EDayView *day_view)
{
    gdouble old_x2, old_y2, new_x2, new_y2;
    gboolean need_reshape = FALSE;

    /* Set the scroll region of the time canvas to its allocated width,
       but with the height the same as the main canvas. */
    gnome_canvas_get_scroll_region (GNOME_CANVAS (day_view->time_canvas),
                    NULL, NULL, &old_x2, &old_y2);
    new_x2 = day_view->time_canvas->allocation.width - 1;
    new_y2 = MAX (day_view->rows * day_view->row_height,
              day_view->main_canvas->allocation.height) - 1;
    if (old_x2 != new_x2 || old_y2 != new_y2)
        gnome_canvas_set_scroll_region (GNOME_CANVAS (day_view->time_canvas),
                        0, 0, new_x2, new_y2);

    /* Set the scroll region of the main canvas to its allocated width,
       but with the height depending on the number of rows needed. */
    gnome_canvas_get_scroll_region (GNOME_CANVAS (day_view->main_canvas),
                    NULL, NULL, &old_x2, &old_y2);
    new_x2 = day_view->main_canvas->allocation.width - 1;
    if (old_x2 != new_x2 || old_y2 != new_y2) {
        need_reshape = TRUE;
        gnome_canvas_set_scroll_region (GNOME_CANVAS (day_view->main_canvas),
                        0, 0, new_x2, new_y2);
    }

    return need_reshape;
}


/* This recalculates the number of rows to display, based on the time range
   shown and the minutes per row. */
static void
e_day_view_recalc_num_rows  (EDayView   *day_view)
{
    gint hours, minutes, total_minutes;

    hours = day_view->last_hour_shown - day_view->first_hour_shown;
    /* This could be negative but it works out OK. */
    minutes = day_view->last_minute_shown - day_view->first_minute_shown;
    total_minutes = hours * 60 + minutes;
    day_view->rows = total_minutes / day_view->mins_per_row;
}


/* Converts an hour and minute to a row in the canvas. Note that if we aren't
   showing all 24 hours of the day, the returned row may be negative or
   greater than day_view->rows. */
gint
e_day_view_convert_time_to_row  (EDayView   *day_view,
                 gint        hour,
                 gint        minute)
{
    gint total_minutes, start_minute, offset;

    total_minutes = hour * 60 + minute;
    start_minute = day_view->first_hour_shown * 60
        + day_view->first_minute_shown;
    offset = total_minutes - start_minute;
    if (offset < 0)
        return -1;
    else
        return offset / day_view->mins_per_row;
}


/* Converts an hour and minute to a y coordinate in the canvas. */
gint
e_day_view_convert_time_to_position (EDayView   *day_view,
                     gint    hour,
                     gint    minute)
{
    gint total_minutes, start_minute, offset;

    total_minutes = hour * 60 + minute;
    start_minute = day_view->first_hour_shown * 60
        + day_view->first_minute_shown;
    offset = total_minutes - start_minute;

    return offset * day_view->row_height / day_view->mins_per_row;
}


static gboolean
e_day_view_on_top_canvas_button_press (GtkWidget *widget,
                       GdkEventButton *event,
                       EDayView *day_view)
{
    gint event_x, event_y, scroll_x, scroll_y, day, event_num;
    EDayViewPosition pos;

    /* Convert the coords to the main canvas window, or return if the
       window is not found. */
    if (!e_day_view_convert_event_coords (day_view, (GdkEvent*) event,
                          GTK_LAYOUT (widget)->bin_window,
                          &event_x, &event_y))
        return FALSE;

    /* The top canvas doesn't scroll, but just in case. */
    gnome_canvas_get_scroll_offsets (GNOME_CANVAS (widget),
                     &scroll_x, &scroll_y);
    event_x += scroll_x;
    event_y += scroll_y;

    pos = e_day_view_convert_position_in_top_canvas (day_view,
                             event_x, event_y,
                             &day, &event_num);

    if (pos == E_DAY_VIEW_POS_OUTSIDE)
        return FALSE;

    if (pos != E_DAY_VIEW_POS_NONE)
        return e_day_view_on_long_event_button_press (day_view,
                                  event_num,
                                  event, pos,
                                  event_x,
                                  event_y);

    e_day_view_stop_editing_event (day_view);

    if (event->button == 1) {
        if (!GTK_WIDGET_HAS_FOCUS (day_view))
            gtk_widget_grab_focus (GTK_WIDGET (day_view));

        if (gdk_pointer_grab (GTK_LAYOUT (widget)->bin_window, FALSE,
                      GDK_POINTER_MOTION_MASK
                      | GDK_BUTTON_RELEASE_MASK,
                      FALSE, NULL, event->time) == 0) {
            e_day_view_start_selection (day_view, day, -1);
        }
    } else if (event->button == 3) {
        if (!GTK_WIDGET_HAS_FOCUS (day_view))
            gtk_widget_grab_focus (GTK_WIDGET (day_view));

        e_day_view_on_event_right_click (day_view, event, -1, -1);
    }

    return TRUE;
}


static gboolean
e_day_view_convert_event_coords (EDayView *day_view,
                 GdkEvent *event,
                 GdkWindow *window,
                 gint *x_return,
                 gint *y_return)
{
    gint event_x, event_y, win_x, win_y;
    GdkWindow *event_window;;

    /* Get the event window, x & y from the appropriate event struct. */
    switch (event->type) {
    case GDK_BUTTON_PRESS:
    case GDK_2BUTTON_PRESS:
    case GDK_3BUTTON_PRESS:
    case GDK_BUTTON_RELEASE:
        event_x = event->button.x;
        event_y = event->button.y;
        event_window = event->button.window;
        break;
    case GDK_MOTION_NOTIFY:
        event_x = event->motion.x;
        event_y = event->motion.y;
        event_window = event->motion.window;
        break;
    default:
        /* Shouldn't get here. */
        g_assert_not_reached ();
        return FALSE;
    }

    while (event_window && event_window != window
           && event_window != GDK_ROOT_PARENT()) {
        gdk_window_get_position (event_window, &win_x, &win_y);
        event_x += win_x;
        event_y += win_y;
        event_window = gdk_window_get_parent (event_window);
    }

    *x_return = event_x;
    *y_return = event_y;

    if (event_window != window)
        g_warning ("Couldn't find event window\n");

    return (event_window == window) ? TRUE : FALSE;
}


static gboolean
e_day_view_on_main_canvas_button_press (GtkWidget *widget,
                    GdkEventButton *event,
                    EDayView *day_view)
{
    gint event_x, event_y, scroll_x, scroll_y, row, day, event_num;
    EDayViewPosition pos;

    /* Handle scroll wheel events */
    if (event->button == 4) {
        /* The wheel has been moved up, so scroll the canvas down. */
        e_day_view_scroll (day_view, E_DAY_VIEW_WHEEL_MOUSE_STEP_SIZE);
        return TRUE;
    }
    if (event->button == 5) {
        /* The wheel has been moved down, so scroll the canvas up. */
        e_day_view_scroll (day_view, -E_DAY_VIEW_WHEEL_MOUSE_STEP_SIZE);
        return TRUE;
    }

    /* Convert the coords to the main canvas window, or return if the
       window is not found. */
    if (!e_day_view_convert_event_coords (day_view, (GdkEvent*) event,
                          GTK_LAYOUT (widget)->bin_window,
                          &event_x, &event_y))
        return FALSE;

    gnome_canvas_get_scroll_offsets (GNOME_CANVAS (widget),
                     &scroll_x, &scroll_y);
    event_x += scroll_x;
    event_y += scroll_y;

    /* Find out where the mouse is. */
    pos = e_day_view_convert_position_in_main_canvas (day_view,
                              event_x, event_y,
                              &day, &row,
                              &event_num);

    if (pos == E_DAY_VIEW_POS_OUTSIDE)
        return FALSE;

    if (pos != E_DAY_VIEW_POS_NONE)
        return e_day_view_on_event_button_press (day_view, day,
                             event_num, event, pos,
                             event_x, event_y);

    e_day_view_stop_editing_event (day_view);

    /* Start the selection drag. */
    if (event->button == 1) {
        if (!GTK_WIDGET_HAS_FOCUS (day_view))
            gtk_widget_grab_focus (GTK_WIDGET (day_view));

        if (gdk_pointer_grab (GTK_LAYOUT (widget)->bin_window, FALSE,
                      GDK_POINTER_MOTION_MASK
                      | GDK_BUTTON_RELEASE_MASK,
                      FALSE, NULL, event->time) == 0) {
            e_day_view_start_selection (day_view, day, row);
        }
    } else if (event->button == 3) {
        if (!GTK_WIDGET_HAS_FOCUS (day_view))
            gtk_widget_grab_focus (GTK_WIDGET (day_view));

        e_day_view_on_event_right_click (day_view, event, -1, -1);
    }

    return TRUE;
}


static gboolean
e_day_view_on_time_canvas_button_press (GtkWidget      *widget,
                    GdkEventButton *event,
                    EDayView       *day_view)
{
    /* Handle scroll wheel events */
    if (event->button == 4 || event->button == 5) {
        GtkAdjustment *adj = GTK_LAYOUT (day_view->main_canvas)->vadjustment;
        gfloat new_value;

        new_value = adj->value + ((event->button == 4) ?
                      -adj->page_increment / 2:
                      adj->page_increment / 2);
        new_value = CLAMP (new_value, adj->lower, adj->upper - adj->page_size);
        gtk_adjustment_set_value (adj, new_value);

        return TRUE;
    }

    return FALSE;
}


static gboolean
e_day_view_on_long_event_button_press (EDayView     *day_view,
                       gint      event_num,
                       GdkEventButton   *event,
                       EDayViewPosition  pos,
                       gint      event_x,
                       gint      event_y)
{
    if (event->button == 1) {
        if (event->type == GDK_BUTTON_PRESS) {
            e_day_view_on_long_event_click (day_view, event_num,
                            event, pos,
                            event_x, event_y);
            return TRUE;
        } else if (event->type == GDK_2BUTTON_PRESS) {
            e_day_view_on_event_double_click (day_view, -1,
                              event_num);
            return TRUE;
        }
    } else if (event->button == 3) {
        if (!GTK_WIDGET_HAS_FOCUS (day_view))
            gtk_widget_grab_focus (GTK_WIDGET (day_view));

        e_day_view_on_event_right_click (day_view, event,
                         E_DAY_VIEW_LONG_EVENT,
                         event_num);
        return TRUE;
    }
    return FALSE;
}


static gboolean
e_day_view_on_event_button_press (EDayView    *day_view,
                  gint         day,
                  gint         event_num,
                  GdkEventButton  *event,
                  EDayViewPosition pos,
                  gint         event_x,
                  gint         event_y)
{
    if (event->button == 1) {
        if (event->type == GDK_BUTTON_PRESS) {
            e_day_view_on_event_click (day_view, day, event_num,
                           event, pos,
                           event_x, event_y);
            return TRUE;
        } else if (event->type == GDK_2BUTTON_PRESS) {
            e_day_view_on_event_double_click (day_view, day,
                              event_num);
            return TRUE;
        }
    } else if (event->button == 3) {
        if (!GTK_WIDGET_HAS_FOCUS (day_view))
            gtk_widget_grab_focus (GTK_WIDGET (day_view));

        e_day_view_on_event_right_click (day_view, event,
                         day, event_num);
        return TRUE;
    }
    return FALSE;
}


static void
e_day_view_on_long_event_click (EDayView *day_view,
                gint event_num,
                GdkEventButton  *bevent,
                EDayViewPosition pos,
                gint         event_x,
                gint         event_y)
{
    EDayViewEvent *event;
    gint start_day, end_day, day;
    gint item_x, item_y, item_w, item_h;

    event = &g_array_index (day_view->long_events, EDayViewEvent,
                event_num);

    /* Ignore clicks on the EText while editing. */
    if (pos == E_DAY_VIEW_POS_EVENT
        && E_TEXT (event->canvas_item)->editing)
        return;

    if (!(cal_component_has_recurrences (event->comp))
        && (pos == E_DAY_VIEW_POS_LEFT_EDGE
        || pos == E_DAY_VIEW_POS_RIGHT_EDGE)) {
        if (!e_day_view_find_long_event_days (event,
                              day_view->days_shown,
                              day_view->day_starts,
                              &start_day, &end_day))
            return;

        /* Grab the keyboard focus, so the event being edited is saved
           and we can use the Escape key to abort the resize. */
        if (!GTK_WIDGET_HAS_FOCUS (day_view))
            gtk_widget_grab_focus (GTK_WIDGET (day_view));

        if (gdk_pointer_grab (GTK_LAYOUT (day_view->top_canvas)->bin_window, FALSE,
                      GDK_POINTER_MOTION_MASK
                      | GDK_BUTTON_RELEASE_MASK,
                      FALSE, NULL, bevent->time) == 0) {

            day_view->resize_event_day = E_DAY_VIEW_LONG_EVENT;
            day_view->resize_event_num = event_num;
            day_view->resize_drag_pos = pos;
            day_view->resize_start_row = start_day;
            day_view->resize_end_row = end_day;

            /* Create the edit rect if necessary. */
            e_day_view_reshape_resize_long_event_rect_item (day_view);

            /* Make sure the text item is on top. */
            gnome_canvas_item_raise_to_top (day_view->resize_long_event_rect_item);

            /* Raise the event's item, above the rect as well. */
            gnome_canvas_item_raise_to_top (event->canvas_item);
        }
    } else if (e_day_view_get_long_event_position (day_view, event_num,
                               &start_day, &end_day,
                               &item_x, &item_y,
                               &item_w, &item_h)) {
        /* Remember the item clicked and the mouse position,
           so we can start a drag if the mouse moves. */
        day_view->pressed_event_day = E_DAY_VIEW_LONG_EVENT;
        day_view->pressed_event_num = event_num;

        day_view->drag_event_x = event_x;
        day_view->drag_event_y = event_y;

        e_day_view_convert_position_in_top_canvas (day_view,
                               event_x, event_y,
                               &day, NULL);
        day_view->drag_event_offset = day - start_day;
    }
}


static void
e_day_view_on_event_click (EDayView *day_view,
               gint day,
               gint event_num,
               GdkEventButton  *bevent,
               EDayViewPosition pos,
               gint       event_x,
               gint       event_y)
{
    EDayViewEvent *event;
    gint tmp_day, row, start_row;

    event = &g_array_index (day_view->events[day], EDayViewEvent,
                event_num);

    /* Ignore clicks on the EText while editing. */
    if (pos == E_DAY_VIEW_POS_EVENT
        && E_TEXT (event->canvas_item)->editing)
        return;

    if (!(cal_component_has_recurrences (event->comp))
        && (pos == E_DAY_VIEW_POS_TOP_EDGE
        || pos == E_DAY_VIEW_POS_BOTTOM_EDGE)) {
        /* Grab the keyboard focus, so the event being edited is saved
           and we can use the Escape key to abort the resize. */
        if (!GTK_WIDGET_HAS_FOCUS (day_view))
            gtk_widget_grab_focus (GTK_WIDGET (day_view));

        if (gdk_pointer_grab (GTK_LAYOUT (day_view->main_canvas)->bin_window, FALSE,
                      GDK_POINTER_MOTION_MASK
                      | GDK_BUTTON_RELEASE_MASK,
                      FALSE, NULL, bevent->time) == 0) {

            day_view->resize_event_day = day;
            day_view->resize_event_num = event_num;
            day_view->resize_drag_pos = pos;
            day_view->resize_start_row = event->start_minute / day_view->mins_per_row;
            day_view->resize_end_row = (event->end_minute - 1) / day_view->mins_per_row;

            day_view->resize_bars_event_day = day;
            day_view->resize_bars_event_num = event_num;

            /* Create the edit rect if necessary. */
            e_day_view_reshape_resize_rect_item (day_view);

            e_day_view_reshape_main_canvas_resize_bars (day_view);

            /* Make sure the text item is on top. */
            gnome_canvas_item_raise_to_top (day_view->resize_rect_item);
            gnome_canvas_item_raise_to_top (day_view->resize_bar_item);

            /* Raise the event's item, above the rect as well. */
            gnome_canvas_item_raise_to_top (event->canvas_item);
        }

    } else {
        /* Remember the item clicked and the mouse position,
           so we can start a drag if the mouse moves. */
        day_view->pressed_event_day = day;
        day_view->pressed_event_num = event_num;

        day_view->drag_event_x = event_x;
        day_view->drag_event_y = event_y;

        e_day_view_convert_position_in_main_canvas (day_view,
                                event_x, event_y,
                                &tmp_day, &row,
                                NULL);
        start_row = event->start_minute / day_view->mins_per_row;
        day_view->drag_event_offset = row - start_row;
    }
}


static void
e_day_view_reshape_resize_long_event_rect_item (EDayView *day_view)
{
    gint day, event_num, start_day, end_day;
    gint item_x, item_y, item_w, item_h;
    gdouble x1, y1, x2, y2;

    day = day_view->resize_event_day;
    event_num = day_view->resize_event_num;

    /* If we're not resizing an event, or the event is not shown,
       hide the resize bars. */
    if (day_view->resize_drag_pos == E_DAY_VIEW_POS_NONE
        || !e_day_view_get_long_event_position (day_view, event_num,
                            &start_day, &end_day,
                            &item_x, &item_y,
                            &item_w, &item_h)) {
        gnome_canvas_item_hide (day_view->resize_long_event_rect_item);
        return;
    }

    x1 = item_x;
    y1 = item_y;
    x2 = item_x + item_w - 1;
    y2 = item_y + item_h - 1;

    gnome_canvas_item_set (day_view->resize_long_event_rect_item,
                   "x1", x1,
                   "y1", y1,
                   "x2", x2,
                   "y2", y2,
                   NULL);
    gnome_canvas_item_show (day_view->resize_long_event_rect_item);
}


static void
e_day_view_reshape_resize_rect_item (EDayView *day_view)
{
    gint day, event_num;
    gint item_x, item_y, item_w, item_h;
    gdouble x1, y1, x2, y2;

    day = day_view->resize_event_day;
    event_num = day_view->resize_event_num;

    /* If we're not resizing an event, or the event is not shown,
       hide the resize bars. */
    if (day_view->resize_drag_pos == E_DAY_VIEW_POS_NONE
        || !e_day_view_get_event_position (day_view, day, event_num,
                           &item_x, &item_y,
                           &item_w, &item_h)) {
        gnome_canvas_item_hide (day_view->resize_rect_item);
        return;
    }

    x1 = item_x;
    y1 = item_y;
    x2 = item_x + item_w - 1;
    y2 = item_y + item_h - 1;

    gnome_canvas_item_set (day_view->resize_rect_item,
                   "x1", x1 + E_DAY_VIEW_BAR_WIDTH - 1,
                   "y1", y1,
                   "x2", x2,
                   "y2", y2,
                   NULL);
    gnome_canvas_item_show (day_view->resize_rect_item);

    gnome_canvas_item_set (day_view->resize_bar_item,
                   "x1", x1,
                   "y1", y1,
                   "x2", x1 + E_DAY_VIEW_BAR_WIDTH - 1,
                   "y2", y2,
                   NULL);
    gnome_canvas_item_show (day_view->resize_bar_item);
}


static void
e_day_view_on_event_double_click (EDayView *day_view,
                  gint day,
                  gint event_num)
{
}

enum {
    /*
     * This is used to "flag" events that can not be editted
     */
    MASK_EDITABLE = 1,

    /*
     * To disable recurring actions to be displayed
     */
    MASK_RECURRING = 2,

    /*
     * To disable actions for non-recurring items to be displayed
     */
    MASK_SINGLE   = 4,

    /*
     * This is used to when an event is currently being edited
     * in another window and we want to disable the event
     * from being edited twice
     */
    MASK_EDITING  = 8
};

static EPopupMenu main_items [] = {
    { N_("Paste"), NULL,
      e_day_view_on_paste, NULL, 0 },

    { "", NULL, NULL, NULL, 0 },

    { N_("New Appointment"), NULL,
      e_day_view_on_new_appointment, NULL, 0 },
    { N_("New All Day Event"), NULL,
      e_day_view_on_new_event, NULL, 0 },

    { "", NULL, NULL, NULL, 0 },

    { N_("Go to Today"), NULL,
      e_day_view_on_goto_today, NULL, 0 },
    { N_("Go to Date..."), NULL,
      e_day_view_on_goto_date, NULL, 0 },

    { NULL, NULL, NULL, NULL, 0 }
};

static EPopupMenu child_items [] = {
    { N_("Open"), NULL,
      e_day_view_on_edit_appointment, NULL, MASK_EDITABLE | MASK_EDITING },
    { N_("Delete this Appointment"), NULL,
      e_day_view_on_delete_appointment, NULL, MASK_EDITABLE | MASK_SINGLE | MASK_EDITING },
    { N_("Cut"), NULL,
      e_day_view_on_cut, NULL, MASK_EDITABLE | MASK_EDITING },
    { N_("Copy"), NULL,
      e_day_view_on_copy, NULL, 0 },
    { N_("Paste"), NULL,
      e_day_view_on_paste, NULL, 0 },

    { "", NULL, NULL, NULL, MASK_SINGLE},

    /*
     * The following are only shown if this is a recurring event
     */
    { "", NULL, NULL, NULL, MASK_SINGLE},
    { N_("Make this Occurrence Movable"), NULL,
      e_day_view_on_unrecur_appointment, NULL, MASK_RECURRING | MASK_EDITING },
    { N_("Delete this Occurrence"), NULL,
      e_day_view_on_delete_occurrence, NULL, MASK_RECURRING | MASK_EDITING },
    { N_("Delete all Occurrences"), NULL,
      e_day_view_on_delete_appointment, NULL, MASK_RECURRING | MASK_EDITING },
    
    { NULL, NULL, NULL, NULL, 0 }
};

static void
e_day_view_on_event_right_click (EDayView *day_view,
                 GdkEventButton *bevent,
                 gint day,
                 gint event_num)
{
    EDayViewEvent *event;
    int have_selection;
    gboolean being_edited;
    EPopupMenu *context_menu;
    int hide_mask = 0;
    int disable_mask = 0;

    /*
     * FIXME:
     * This used to be set only if the event wasn't being edited
     * in the event editor, but we can't check that at present.
     * We could possibly set up another method of checking it.
     */
    
    being_edited = FALSE;
    
    have_selection = GTK_WIDGET_HAS_FOCUS (day_view)
        && day_view->selection_start_day != -1;

    if (event_num == -1)
        context_menu = main_items;
    else {
        context_menu = child_items;
        
        if (day == E_DAY_VIEW_LONG_EVENT)
            event = &g_array_index (day_view->long_events,
                        EDayViewEvent, event_num);
        else
            event = &g_array_index (day_view->events[day],
                        EDayViewEvent, event_num);

        if (cal_component_has_recurrences (event->comp)) 
            hide_mask |= MASK_SINGLE;
        else
            hide_mask |= MASK_RECURRING;
    }

    if (being_edited)
        disable_mask |= MASK_EDITING;

    day_view->popup_event_day = day;
    day_view->popup_event_num = event_num;

    e_popup_menu_run (context_menu, (GdkEvent *) bevent, disable_mask, hide_mask, day_view);
}

static void
e_day_view_on_new_appointment (GtkWidget *widget, gpointer data)
{
    EDayView *day_view = E_DAY_VIEW (data);
    time_t dtstart, dtend;
    
    e_day_view_get_selected_time_range (day_view, &dtstart, &dtend);
    gnome_calendar_new_appointment_for (
        day_view->calendar, dtstart, dtend, FALSE);
}

static void
e_day_view_on_new_event (GtkWidget *widget, gpointer data)
{
    EDayView *day_view = E_DAY_VIEW (data);
    time_t dtstart, dtend;
    
    e_day_view_get_selected_time_range (day_view, &dtstart, &dtend);
    gnome_calendar_new_appointment_for (
        day_view->calendar, dtstart, dtend, TRUE);
}

static void
e_day_view_on_goto_date (GtkWidget *widget, gpointer data)
{
    EDayView *day_view = E_DAY_VIEW (data);

    goto_dialog (day_view->calendar);
}

static void
e_day_view_on_goto_today (GtkWidget *widget, gpointer data)
{
    EDayView *day_view = E_DAY_VIEW (data);

    calendar_goto_today (day_view->calendar);
}

static void
e_day_view_on_edit_appointment (GtkWidget *widget, gpointer data)
{
    EDayView *day_view;
    EDayViewEvent *event;

    day_view = E_DAY_VIEW (data);

    event = e_day_view_get_popup_menu_event (day_view);
    if (event == NULL)
        return;

    if (day_view->calendar)
        gnome_calendar_edit_object (day_view->calendar, event->comp);
    else
        g_warning ("Calendar not set");
}


static void
e_day_view_on_delete_occurrence (GtkWidget *widget, gpointer data)
{
    EDayView *day_view;
    EDayViewEvent *event;
    CalComponent *comp;

    day_view = E_DAY_VIEW (data);

    event = e_day_view_get_popup_menu_event (day_view);
    if (event == NULL)
        return;

    /* We must duplicate the CalComponent, or we won't know it has changed
       when we get the "update_event" callback. */
    comp = cal_component_clone (event->comp);
    cal_comp_util_add_exdate (comp, event->start, day_view->zone);

    if (!cal_client_update_object (day_view->client, comp))
        g_message ("e_day_view_on_delete_occurrence(): Could not update the object!");

    gtk_object_unref (GTK_OBJECT (comp));
}


static void
e_day_view_on_delete_appointment (GtkWidget *widget, gpointer data)
{
    EDayView *day_view;
    EDayViewEvent *event;
    CalComponentVType vtype;

    day_view = E_DAY_VIEW (data);

    event = e_day_view_get_popup_menu_event (day_view);
    if (event == NULL)
        return;

    if (day_view->editing_event_day >= 0)
        e_day_view_stop_editing_event (day_view);

    vtype = cal_component_get_vtype (event->comp);

    if (delete_component_dialog (event->comp, 1, vtype, widget)) {
        const char *uid;

        cal_component_get_uid (event->comp, &uid);

        /* We don't check the return value; FALSE can mean the object
         * was not in the server anyways.
         */
        cal_client_remove_object (day_view->client, uid);
    }
}

static void
e_day_view_on_cut (GtkWidget *widget, gpointer data)
{
    EDayView *day_view;
    EDayViewEvent *event;
    char *uid;

    day_view = E_DAY_VIEW (data);

    event = e_day_view_get_popup_menu_event (day_view);
    if (event == NULL)
        return;

    e_day_view_on_copy (widget, data);

    cal_component_get_uid (event->comp, &uid);
    cal_client_remove_object (day_view->client, uid);
}

static void
e_day_view_on_copy (GtkWidget *widget, gpointer data)
{
    EDayView *day_view;
    EDayViewEvent *event;
    char *comp_str;

    day_view = E_DAY_VIEW (data);

    event = e_day_view_get_popup_menu_event (day_view);
    if (event == NULL)
        return;

    comp_str = cal_component_get_as_string (event->comp);
    if (day_view->clipboard_selection)
        g_free (day_view->clipboard_selection);
    day_view->clipboard_selection = comp_str;

    gtk_selection_owner_set (day_view->invisible, clipboard_atom, GDK_CURRENT_TIME);
}

static void
e_day_view_on_paste (GtkWidget *widget, gpointer data)
{
    EDayView *day_view = E_DAY_VIEW (data);

    gtk_selection_convert (day_view->invisible,
                   clipboard_atom,
                   GDK_SELECTION_TYPE_STRING,
                   GDK_CURRENT_TIME);
}

static void
e_day_view_on_unrecur_appointment (GtkWidget *widget, gpointer data)
{
    EDayView *day_view;
    EDayViewEvent *event;
    CalComponent *comp, *new_comp;
    CalComponentDateTime date;
    struct icaltimetype itt;

    day_view = E_DAY_VIEW (data);

    event = e_day_view_get_popup_menu_event (day_view);
    if (event == NULL)
        return;

    date.value = &itt;
    date.tzid = NULL;

    /* For the recurring object, we add an exception to get rid of the
       instance. */

    comp = cal_component_clone (event->comp);
    cal_comp_util_add_exdate (comp, event->start, day_view->zone);

    /* For the unrecurred instance we duplicate the original object,
       create a new uid for it, get rid of the recurrence rules, and set
       the start & end times to the instances times. */
    new_comp = cal_component_clone (event->comp);
    cal_component_set_uid (new_comp, cal_component_gen_uid ());
    cal_component_set_rdate_list (new_comp, NULL);
    cal_component_set_rrule_list (new_comp, NULL);
    cal_component_set_exdate_list (new_comp, NULL);
    cal_component_set_exrule_list (new_comp, NULL);

    date.value = &itt;
    date.tzid = icaltimezone_get_tzid (day_view->zone);

    *date.value = icaltime_from_timet_with_zone (event->start, FALSE,
                             day_view->zone);
    cal_component_set_dtstart (new_comp, &date);
    *date.value = icaltime_from_timet_with_zone (event->end, FALSE,
                             day_view->zone);
    cal_component_set_dtend (new_comp, &date);


    /* Now update both CalComponents. Note that we do this last since at
     * present the updates happen synchronously so our event may disappear.
     */
    if (!cal_client_update_object (day_view->client, comp))
        g_message ("e_day_view_on_unrecur_appointment(): Could not update the object!");

    gtk_object_unref (GTK_OBJECT (comp));

    if (!cal_client_update_object (day_view->client, new_comp))
        g_message ("e_day_view_on_unrecur_appointment(): Could not update the object!");

    gtk_object_unref (GTK_OBJECT (new_comp));
}


static EDayViewEvent*
e_day_view_get_popup_menu_event (EDayView *day_view)
{
    if (day_view->popup_event_num == -1)
        return NULL;

    if (day_view->popup_event_day == E_DAY_VIEW_LONG_EVENT)
        return &g_array_index (day_view->long_events,
                       EDayViewEvent,
                       day_view->popup_event_num);
    else
        return &g_array_index (day_view->events[day_view->popup_event_day],
                       EDayViewEvent,
                       day_view->popup_event_num);
}


static gboolean
e_day_view_on_top_canvas_button_release (GtkWidget *widget,
                     GdkEventButton *event,
                     EDayView *day_view)
{
    if (day_view->selection_is_being_dragged) {
        gdk_pointer_ungrab (event->time);
        e_day_view_finish_selection (day_view);
    } else if (day_view->resize_drag_pos != E_DAY_VIEW_POS_NONE) {
        e_day_view_finish_long_event_resize (day_view);
        gdk_pointer_ungrab (event->time);
    } else if (day_view->pressed_event_day != -1) {
        e_day_view_start_editing_event (day_view,
                        day_view->pressed_event_day,
                        day_view->pressed_event_num,
                        NULL);
    }

    day_view->pressed_event_day = -1;

    return FALSE;
}


static gboolean
e_day_view_on_main_canvas_button_release (GtkWidget *widget,
                      GdkEventButton *event,
                      EDayView *day_view)
{
    if (day_view->selection_is_being_dragged) {
        gdk_pointer_ungrab (event->time);
        e_day_view_finish_selection (day_view);
        e_day_view_stop_auto_scroll (day_view);
    } else if (day_view->resize_drag_pos != E_DAY_VIEW_POS_NONE) {
        e_day_view_finish_resize (day_view);
        gdk_pointer_ungrab (event->time);
        e_day_view_stop_auto_scroll (day_view);
    } else if (day_view->pressed_event_day != -1) {
        e_day_view_start_editing_event (day_view,
                        day_view->pressed_event_day,
                        day_view->pressed_event_num,
                        NULL);
    }

    day_view->pressed_event_day = -1;

    return FALSE;
}


static void
e_day_view_update_calendar_selection_time (EDayView *day_view)
{
    time_t start, end;

    e_day_view_get_selected_time_range (day_view, &start, &end);

#if 0
    g_print ("Start: %s", ctime (&start));
    g_print ("End  : %s", ctime (&end));
#endif

    if (day_view->calendar)
        gnome_calendar_set_selected_time_range (day_view->calendar,
                            start, end);
}


static gboolean
e_day_view_on_top_canvas_motion (GtkWidget *widget,
                 GdkEventMotion *mevent,
                 EDayView *day_view)
{
    EDayViewEvent *event = NULL;
    EDayViewPosition pos;
    gint event_x, event_y, scroll_x, scroll_y, canvas_x, canvas_y;
    gint day, event_num;
    GdkCursor *cursor;

#if 0
    g_print ("In e_day_view_on_top_canvas_motion\n");
#endif

    /* Convert the coords to the main canvas window, or return if the
       window is not found. */
    if (!e_day_view_convert_event_coords (day_view, (GdkEvent*) mevent,
                          GTK_LAYOUT (widget)->bin_window,
                          &event_x, &event_y))
        return FALSE;

    /* The top canvas doesn't scroll, but just in case. */
    gnome_canvas_get_scroll_offsets (GNOME_CANVAS (widget),
                     &scroll_x, &scroll_y);
    canvas_x = event_x + scroll_x;
    canvas_y = event_y + scroll_y;

    pos = e_day_view_convert_position_in_top_canvas (day_view,
                             canvas_x, canvas_y,
                             &day, &event_num);
    if (event_num != -1)
        event = &g_array_index (day_view->long_events, EDayViewEvent,
                    event_num);

    if (day_view->selection_is_being_dragged) {
        e_day_view_update_selection (day_view, day, -1);
        return TRUE;
    } else if (day_view->resize_drag_pos != E_DAY_VIEW_POS_NONE) {
        if (pos != E_DAY_VIEW_POS_OUTSIDE) {
            e_day_view_update_long_event_resize (day_view, day);
            return TRUE;
        }
    } else if (day_view->pressed_event_day == E_DAY_VIEW_LONG_EVENT) {
        GtkTargetList *target_list;

        event = &g_array_index (day_view->long_events, EDayViewEvent,
                    day_view->pressed_event_num);

        if (!(cal_component_has_recurrences (event->comp))
            && (abs (canvas_x - day_view->drag_event_x)
            > E_DAY_VIEW_DRAG_START_OFFSET
            || abs (canvas_y - day_view->drag_event_y)
            > E_DAY_VIEW_DRAG_START_OFFSET)) {
            day_view->drag_event_day = day_view->pressed_event_day;
            day_view->drag_event_num = day_view->pressed_event_num;
            day_view->pressed_event_day = -1;

            /* Hide the horizontal bars. */
            if (day_view->resize_bars_event_day != -1) {
                day_view->resize_bars_event_day = -1;
                day_view->resize_bars_event_num = -1;
                gnome_canvas_item_hide (day_view->main_canvas_top_resize_bar_item);
                gnome_canvas_item_hide (day_view->main_canvas_bottom_resize_bar_item);
            }

            target_list = gtk_target_list_new (target_table,
                               n_targets);
            gtk_drag_begin (widget, target_list,
                    GDK_ACTION_COPY | GDK_ACTION_MOVE,
                    1, (GdkEvent*)mevent);
            gtk_target_list_unref (target_list);
        }
    } else {
        cursor = day_view->normal_cursor;

        /* Recurring events can't be resized. */
        if (event && !cal_component_has_recurrences (event->comp)) {
            switch (pos) {
            case E_DAY_VIEW_POS_LEFT_EDGE:
            case E_DAY_VIEW_POS_RIGHT_EDGE:
                cursor = day_view->resize_width_cursor;
                break;
            default:
                break;
            }
        }

        /* Only set the cursor if it is different to last one set. */
        if (day_view->last_cursor_set_in_top_canvas != cursor) {
            day_view->last_cursor_set_in_top_canvas = cursor;
            gdk_window_set_cursor (widget->window, cursor);
        }

    }

    return FALSE;
}


static gboolean
e_day_view_on_main_canvas_motion (GtkWidget *widget,
                  GdkEventMotion *mevent,
                  EDayView *day_view)
{
    EDayViewEvent *event = NULL;
    EDayViewPosition pos;
    gint event_x, event_y, scroll_x, scroll_y, canvas_x, canvas_y;
    gint row, day, event_num;
    GdkCursor *cursor;

#if 0
    g_print ("In e_day_view_on_main_canvas_motion\n");
#endif

    /* Convert the coords to the main canvas window, or return if the
       window is not found. */
    if (!e_day_view_convert_event_coords (day_view, (GdkEvent*) mevent,
                          GTK_LAYOUT (widget)->bin_window,
                          &event_x, &event_y))
        return FALSE;

    gnome_canvas_get_scroll_offsets (GNOME_CANVAS (widget),
                     &scroll_x, &scroll_y);
    canvas_x = event_x + scroll_x;
    canvas_y = event_y + scroll_y;

    pos = e_day_view_convert_position_in_main_canvas (day_view,
                              canvas_x, canvas_y,
                              &day, &row,
                              &event_num);
    if (event_num != -1)
        event = &g_array_index (day_view->events[day], EDayViewEvent,
                    event_num);

    if (day_view->selection_is_being_dragged) {
        if (pos != E_DAY_VIEW_POS_OUTSIDE) {
            e_day_view_update_selection (day_view, day, row);
            e_day_view_check_auto_scroll (day_view,
                              event_x, event_y);
            return TRUE;
        }
    } else if (day_view->resize_drag_pos != E_DAY_VIEW_POS_NONE) {
        if (pos != E_DAY_VIEW_POS_OUTSIDE) {
            e_day_view_update_resize (day_view, row);
            e_day_view_check_auto_scroll (day_view,
                              event_x, event_y);
            return TRUE;
        }
    } else if (day_view->pressed_event_day != -1
           && day_view->pressed_event_day != E_DAY_VIEW_LONG_EVENT) {
        GtkTargetList *target_list;

        event = &g_array_index (day_view->events[day_view->pressed_event_day], EDayViewEvent, day_view->pressed_event_num);

        if (!cal_component_has_recurrences (event->comp)
            && (abs (canvas_x - day_view->drag_event_x)
            > E_DAY_VIEW_DRAG_START_OFFSET
            || abs (canvas_y - day_view->drag_event_y)
            > E_DAY_VIEW_DRAG_START_OFFSET)) {
            day_view->drag_event_day = day_view->pressed_event_day;
            day_view->drag_event_num = day_view->pressed_event_num;
            day_view->pressed_event_day = -1;

            /* Hide the horizontal bars. */
            if (day_view->resize_bars_event_day != -1) {
                day_view->resize_bars_event_day = -1;
                day_view->resize_bars_event_num = -1;
                gnome_canvas_item_hide (day_view->main_canvas_top_resize_bar_item);
                gnome_canvas_item_hide (day_view->main_canvas_bottom_resize_bar_item);
            }

            target_list = gtk_target_list_new (target_table,
                               n_targets);
            gtk_drag_begin (widget, target_list,
                    GDK_ACTION_COPY | GDK_ACTION_MOVE,
                    1, (GdkEvent*)mevent);
            gtk_target_list_unref (target_list);
        }
    } else {
        cursor = day_view->normal_cursor;

        /* Recurring events can't be resized. */
        if (event && !cal_component_has_recurrences (event->comp)) {
            switch (pos) {
            case E_DAY_VIEW_POS_LEFT_EDGE:
                cursor = day_view->move_cursor;
                break;
            case E_DAY_VIEW_POS_TOP_EDGE:
            case E_DAY_VIEW_POS_BOTTOM_EDGE:
                cursor = day_view->resize_height_cursor;
                break;
            default:
                break;
            }
        }

        /* Only set the cursor if it is different to last one set. */
        if (day_view->last_cursor_set_in_main_canvas != cursor) {
            day_view->last_cursor_set_in_main_canvas = cursor;
            gdk_window_set_cursor (widget->window, cursor);
        }
    }

    return FALSE;
}


/* This sets the selection to a single cell. If day is -1 then the current
   start day is reused. If row is -1 then the selection is in the top canvas.
*/
void
e_day_view_start_selection (EDayView *day_view,
                gint day,
                gint row)
{
    if (day == -1) {
        day = day_view->selection_start_day;
        if (day == -1)
            day = 0;
    }

    day_view->selection_start_day = day;
    day_view->selection_end_day = day;

    day_view->selection_start_row = row;
    day_view->selection_end_row = row;

    day_view->selection_is_being_dragged = TRUE;
    day_view->selection_drag_pos = E_DAY_VIEW_DRAG_END;
    day_view->selection_in_top_canvas = (row == -1) ? TRUE : FALSE;

    /* FIXME: Optimise? */
    gtk_widget_queue_draw (day_view->top_canvas);
    gtk_widget_queue_draw (day_view->main_canvas);
}


/* Updates the selection during a drag. If day is -1 the selection day is
   unchanged. */
void
e_day_view_update_selection (EDayView *day_view,
                 gint day,
                 gint row)
{
    gboolean need_redraw = FALSE;

#if 0
    g_print ("Updating selection %i,%i\n", day, row);
#endif

    day_view->selection_in_top_canvas = (row == -1) ? TRUE : FALSE;

    if (day == -1)
        day = (day_view->selection_drag_pos == E_DAY_VIEW_DRAG_START)
            ? day_view->selection_start_day
            : day_view->selection_end_day;

    if (day_view->selection_drag_pos == E_DAY_VIEW_DRAG_START) {
        if (row != day_view->selection_start_row
            || day != day_view->selection_start_day) {
            need_redraw = TRUE;
            day_view->selection_start_row = row;
            day_view->selection_start_day = day;
        }
    } else {
        if (row != day_view->selection_end_row
            || day != day_view->selection_end_day) {
            need_redraw = TRUE;
            day_view->selection_end_row = row;
            day_view->selection_end_day = day;
        }
    }

    e_day_view_normalize_selection (day_view);

    /* FIXME: Optimise? */
    if (need_redraw) {
        gtk_widget_queue_draw (day_view->top_canvas);
        gtk_widget_queue_draw (day_view->main_canvas);
    }
}


static void
e_day_view_normalize_selection (EDayView *day_view)
{
    gint tmp_row, tmp_day;

    /* Switch the drag position if necessary. */
    if (day_view->selection_start_day > day_view->selection_end_day
        || (day_view->selection_start_day == day_view->selection_end_day
        && day_view->selection_start_row > day_view->selection_end_row)) {
        tmp_row = day_view->selection_start_row;
        tmp_day = day_view->selection_start_day;
        day_view->selection_start_day = day_view->selection_end_day;
        day_view->selection_start_row = day_view->selection_end_row;
        day_view->selection_end_day = tmp_day;
        day_view->selection_end_row = tmp_row;
        if (day_view->selection_drag_pos == E_DAY_VIEW_DRAG_START)
            day_view->selection_drag_pos = E_DAY_VIEW_DRAG_END;
        else
            day_view->selection_drag_pos = E_DAY_VIEW_DRAG_START;
    }
}


void
e_day_view_finish_selection (EDayView *day_view)
{
    day_view->selection_is_being_dragged = FALSE;
    e_day_view_update_calendar_selection_time (day_view);
}


static void
e_day_view_update_long_event_resize (EDayView *day_view,
                     gint day)
{
    EDayViewEvent *event;
    gint event_num;
    gboolean need_reshape = FALSE;

#if 0
    g_print ("Updating resize Day:%i\n", day);
#endif

    event_num = day_view->resize_event_num;
    event = &g_array_index (day_view->long_events, EDayViewEvent,
                event_num);

    if (day_view->resize_drag_pos == E_DAY_VIEW_POS_LEFT_EDGE) {
        day = MIN (day, day_view->resize_end_row);
        if (day != day_view->resize_start_row) {
            need_reshape = TRUE;
            day_view->resize_start_row = day;

        }
    } else {
        day = MAX (day, day_view->resize_start_row);
        if (day != day_view->resize_end_row) {
            need_reshape = TRUE;
            day_view->resize_end_row = day;
        }
    }

    /* FIXME: Optimise? */
    if (need_reshape) {
        e_day_view_reshape_long_event (day_view, event_num);
        e_day_view_reshape_resize_long_event_rect_item (day_view);
        gtk_widget_queue_draw (day_view->top_canvas);
    }
}


static void
e_day_view_update_resize (EDayView *day_view,
              gint row)
{
    EDayViewEvent *event;
    gint day, event_num;
    gboolean need_reshape = FALSE;

#if 0
    g_print ("Updating resize Row:%i\n", row);
#endif

    day = day_view->resize_event_day;
    event_num = day_view->resize_event_num;
    event = &g_array_index (day_view->events[day], EDayViewEvent,
                event_num);

    if (day_view->resize_drag_pos == E_DAY_VIEW_POS_TOP_EDGE) {
        row = MIN (row, day_view->resize_end_row);
        if (row != day_view->resize_start_row) {
            need_reshape = TRUE;
            day_view->resize_start_row = row;

        }
    } else {
        row = MAX (row, day_view->resize_start_row);
        if (row != day_view->resize_end_row) {
            need_reshape = TRUE;
            day_view->resize_end_row = row;
        }
    }

    /* FIXME: Optimise? */
    if (need_reshape) {
        e_day_view_reshape_day_event (day_view, day, event_num);
        e_day_view_reshape_resize_rect_item (day_view);
        e_day_view_reshape_main_canvas_resize_bars (day_view);
        gtk_widget_queue_draw (day_view->main_canvas);
    }
}


/* This converts the resize start or end row back to a time and updates the
   event. */
static void
e_day_view_finish_long_event_resize (EDayView *day_view)
{
    EDayViewEvent *event;
    gint event_num;
    CalComponent *comp;
    CalComponentDateTime date;
    struct icaltimetype itt;
    time_t dt;

    event_num = day_view->resize_event_num;
    event = &g_array_index (day_view->long_events, EDayViewEvent,
                event_num);

    /* We use a temporary copy of the comp since we don't want to
       change the original comp here. Otherwise we would not detect that
       the event's time had changed in the "update_event" callback. */
    comp = cal_component_clone (event->comp);

    date.value = &itt;
    /* FIXME: Should probably keep the timezone of the original start
       and end times. */
    date.tzid = icaltimezone_get_tzid (day_view->zone);

    if (day_view->resize_drag_pos == E_DAY_VIEW_POS_LEFT_EDGE) {
        dt = day_view->day_starts[day_view->resize_start_row];
        *date.value = icaltime_from_timet_with_zone (dt, FALSE,
                                 day_view->zone);
        cal_component_set_dtstart (comp, &date);
    } else {
        dt = day_view->day_starts[day_view->resize_end_row + 1];
        *date.value = icaltime_from_timet_with_zone (dt, FALSE,
                                 day_view->zone);
        cal_component_set_dtend (comp, &date);
    }

    gnome_canvas_item_hide (day_view->resize_long_event_rect_item);

    day_view->resize_drag_pos = E_DAY_VIEW_POS_NONE;

    if (!cal_client_update_object (day_view->client, comp))
        g_message ("e_day_view_finish_long_event_resize(): Could not update the object!");

    gtk_object_unref (GTK_OBJECT (comp));
}


/* This converts the resize start or end row back to a time and updates the
   event. */
static void
e_day_view_finish_resize (EDayView *day_view)
{
    EDayViewEvent *event;
    gint day, event_num;
    CalComponent *comp;
    CalComponentDateTime date;
    struct icaltimetype itt;
    time_t dt;

    day = day_view->resize_event_day;
    event_num = day_view->resize_event_num;
    event = &g_array_index (day_view->events[day], EDayViewEvent,
                event_num);

    /* We use a temporary shallow copy of the ico since we don't want to
       change the original ico here. Otherwise we would not detect that
       the event's time had changed in the "update_event" callback. */
    comp = cal_component_clone (event->comp);

    date.value = &itt;
    /* FIXME: Should probably keep the timezone of the original start
       and end times. */
    date.tzid = icaltimezone_get_tzid (day_view->zone);

    if (day_view->resize_drag_pos == E_DAY_VIEW_POS_TOP_EDGE) {
        dt = e_day_view_convert_grid_position_to_time (day_view, day, day_view->resize_start_row);
        *date.value = icaltime_from_timet_with_zone (dt, FALSE,
                                 day_view->zone);
        cal_component_set_dtstart (comp, &date);
    } else {
        dt = e_day_view_convert_grid_position_to_time (day_view, day, day_view->resize_end_row + 1);
        *date.value = icaltime_from_timet_with_zone (dt, FALSE,
                                 day_view->zone);
        cal_component_set_dtend (comp, &date);
    }

    gnome_canvas_item_hide (day_view->resize_rect_item);
    gnome_canvas_item_hide (day_view->resize_bar_item);

    /* Hide the horizontal bars. */
    day_view->resize_bars_event_day = -1;
    day_view->resize_bars_event_num = -1;
    gnome_canvas_item_hide (day_view->main_canvas_top_resize_bar_item);
    gnome_canvas_item_hide (day_view->main_canvas_bottom_resize_bar_item);

    day_view->resize_drag_pos = E_DAY_VIEW_POS_NONE;

    if (!cal_client_update_object (day_view->client, comp))
        g_message ("e_day_view_finish_resize(): Could not update the object!");

    gtk_object_unref (GTK_OBJECT (comp));
}


static void
e_day_view_abort_resize (EDayView *day_view,
             guint32 time)
{
    gint day, event_num;

    if (day_view->resize_drag_pos == E_DAY_VIEW_POS_NONE)
        return;

    day_view->resize_drag_pos = E_DAY_VIEW_POS_NONE;
    gdk_pointer_ungrab (time);

    day = day_view->resize_event_day;
    event_num = day_view->resize_event_num;

    if (day == E_DAY_VIEW_LONG_EVENT) {
        e_day_view_reshape_long_event (day_view, event_num);
        gtk_widget_queue_draw (day_view->top_canvas);

        day_view->last_cursor_set_in_top_canvas = day_view->normal_cursor;
        gdk_window_set_cursor (day_view->top_canvas->window,
                       day_view->normal_cursor);
        gnome_canvas_item_hide (day_view->resize_long_event_rect_item);
    } else {
        e_day_view_reshape_day_event (day_view, day, event_num);
        e_day_view_reshape_main_canvas_resize_bars (day_view);
        gtk_widget_queue_draw (day_view->main_canvas);

        day_view->last_cursor_set_in_main_canvas = day_view->normal_cursor;
        gdk_window_set_cursor (day_view->main_canvas->window,
                       day_view->normal_cursor);
        gnome_canvas_item_hide (day_view->resize_rect_item);
        gnome_canvas_item_hide (day_view->resize_bar_item);
    }
}


static void
e_day_view_free_events (EDayView *day_view)
{
    gint day;

    /* Reset all our indices. */
    day_view->editing_event_day = -1;
    day_view->popup_event_day = -1;
    day_view->resize_bars_event_day = -1;
    day_view->resize_event_day = -1;
    day_view->pressed_event_day = -1;
    day_view->drag_event_day = -1;

    e_day_view_free_event_array (day_view, day_view->long_events);

    for (day = 0; day < E_DAY_VIEW_MAX_DAYS; day++)
        e_day_view_free_event_array (day_view, day_view->events[day]);
}


static void
e_day_view_free_event_array (EDayView *day_view,
                 GArray *array)
{
    EDayViewEvent *event;
    gint event_num;

    for (event_num = 0; event_num < array->len; event_num++) {
        event = &g_array_index (array, EDayViewEvent, event_num);
        if (event->canvas_item)
            gtk_object_destroy (GTK_OBJECT (event->canvas_item));
        gtk_object_unref (GTK_OBJECT (event->comp));
    }

    g_array_set_size (array, 0);
}


/* This adds one event to the view, adding it to the appropriate array. */
static gboolean
e_day_view_add_event (CalComponent *comp,
              time_t      start,
              time_t      end,
              gpointer    data)

{
    EDayView *day_view;
    EDayViewEvent event;
    gint day, offset;
    struct icaltimetype start_tt, end_tt;

    day_view = E_DAY_VIEW (data);

#if 0
    g_print ("Day view lower: %s", ctime (&day_view->lower));
    g_print ("Day view upper: %s", ctime (&day_view->upper));
    g_print ("Event start: %s", ctime (&start));
    g_print ("Event end  : %s\n", ctime (&end));
#endif

    /* Check that the event times are valid. */
    g_return_val_if_fail (start <= end, TRUE);
    g_return_val_if_fail (start < day_view->upper, TRUE);
    g_return_val_if_fail (end > day_view->lower, TRUE);

    start_tt = icaltime_from_timet_with_zone (start, FALSE,
                          day_view->zone);
    end_tt = icaltime_from_timet_with_zone (end, FALSE,
                        day_view->zone);

    event.comp = comp;
    gtk_object_ref (GTK_OBJECT (comp));
    event.start = start;
    event.end = end;
    event.canvas_item = NULL;

    /* Calculate the start & end minute, relative to the top of the
       display. */
    offset = day_view->first_hour_shown * 60
        + day_view->first_minute_shown;
    event.start_minute = start_tt.hour * 60 + start_tt.minute - offset;
    event.end_minute = end_tt.hour * 60 + end_tt.minute - offset;

    event.start_row_or_col = -1;
    event.num_columns = -1;

    /* Find out which array to add the event to. */
    for (day = 0; day < day_view->days_shown; day++) {
        if (start >= day_view->day_starts[day]
            && end <= day_view->day_starts[day + 1]) {

            /* Special case for when the appointment ends at
               midnight, i.e. the start of the next day. */
            if (end == day_view->day_starts[day + 1]) {

                /* If the event last the entire day, then we
                   skip it here so it gets added to the top
                   canvas. */
                if (start == day_view->day_starts[day])
                    break;

                event.end_minute = 24 * 60;
            }

            g_array_append_val (day_view->events[day], event);
            day_view->events_sorted[day] = FALSE;
            day_view->need_layout[day] = TRUE;
            return TRUE;
        }
    }

    /* The event wasn't within one day so it must be a long event,
       i.e. shown in the top canvas. */
    g_array_append_val (day_view->long_events, event);
    day_view->long_events_sorted = FALSE;
    day_view->long_events_need_layout = TRUE;
    return TRUE;
}


/* This lays out the short (less than 1 day) events in the columns.
   Any long events are simply skipped. */
void
e_day_view_check_layout (EDayView *day_view)
{
    gint day, rows_in_top_display, top_canvas_height, top_rows;

    /* Don't bother if we aren't visible. */
    if (!GTK_WIDGET_VISIBLE (day_view))
        return;

    /* Make sure the events are sorted (by start and size). */
    e_day_view_ensure_events_sorted (day_view);

    for (day = 0; day < day_view->days_shown; day++) {
        if (day_view->need_layout[day])
            e_day_view_layout_day_events (day_view->events[day],
                              day_view->rows,
                              day_view->mins_per_row,
                              day_view->cols_per_row[day]);

        if (day_view->need_layout[day]
            || day_view->need_reshape[day]) {
            e_day_view_reshape_day_events (day_view, day);

            if (day_view->resize_bars_event_day == day)
                e_day_view_reshape_main_canvas_resize_bars (day_view);
        }

        day_view->need_layout[day] = FALSE;
        day_view->need_reshape[day] = FALSE;
    }

    if (day_view->long_events_need_layout) {
        e_day_view_layout_long_events (day_view->long_events,
                           day_view->days_shown,
                           day_view->day_starts,
                           &rows_in_top_display);

        /* Set the height of the top canvas based on the row height
           and the number of rows needed (min 1 + 1 for the dates + 1
           space for DnD).*/
        if (day_view->rows_in_top_display != rows_in_top_display) {
            day_view->rows_in_top_display = rows_in_top_display;
            top_rows = MAX (1, rows_in_top_display);
            top_canvas_height = (top_rows + 2)
                * day_view->top_row_height;
            gtk_widget_set_usize (day_view->top_canvas, -1,
                          top_canvas_height);
        }
    }


    if (day_view->long_events_need_layout
        || day_view->long_events_need_reshape)
        e_day_view_reshape_long_events (day_view);

    day_view->long_events_need_layout = FALSE;
    day_view->long_events_need_reshape = FALSE;
}


static void
e_day_view_reshape_long_events (EDayView *day_view)
{
    EDayViewEvent *event;
    gint event_num;

    for (event_num = 0; event_num < day_view->long_events->len;
         event_num++) {
        event = &g_array_index (day_view->long_events, EDayViewEvent,
                    event_num);

        if (event->num_columns == 0) {
            if (event->canvas_item) {
                gtk_object_destroy (GTK_OBJECT (event->canvas_item));
                event->canvas_item = NULL;
            }
        } else {
            e_day_view_reshape_long_event (day_view, event_num);
        }
    }
}


static void
e_day_view_reshape_long_event (EDayView *day_view,
                   gint  event_num)
{
    EDayViewEvent *event;
    GdkFont *font;
    gint start_day, end_day, item_x, item_y, item_w, item_h;
    gint text_x, text_w, num_icons, icons_width, width, time_width;
    CalComponent *comp;
    gint min_text_x, max_text_w, text_width, line_len;
    gchar *text, *end_of_line;
    gboolean show_icons = TRUE, use_max_width = FALSE;

    event = &g_array_index (day_view->long_events, EDayViewEvent,
                event_num);

    if (!e_day_view_get_long_event_position (day_view, event_num,
                         &start_day, &end_day,
                         &item_x, &item_y,
                         &item_w, &item_h)) {
        if (event->canvas_item) {
            gtk_object_destroy (GTK_OBJECT (event->canvas_item));
            event->canvas_item = NULL;
        }
        return;
    }

    /* Take off the border and padding. */
    item_x += E_DAY_VIEW_LONG_EVENT_BORDER_WIDTH + E_DAY_VIEW_LONG_EVENT_X_PAD;
    item_w -= (E_DAY_VIEW_LONG_EVENT_BORDER_WIDTH + E_DAY_VIEW_LONG_EVENT_X_PAD) * 2;
    item_y += E_DAY_VIEW_LONG_EVENT_BORDER_HEIGHT + E_DAY_VIEW_LONG_EVENT_Y_PAD;
    item_h -= (E_DAY_VIEW_LONG_EVENT_BORDER_HEIGHT + E_DAY_VIEW_LONG_EVENT_Y_PAD) * 2;

    /* We don't show the icons while resizing, since we'd have to
       draw them on top of the resize rect. Nor when editing. */
    num_icons = 0;
    comp = event->comp;
    font = GTK_WIDGET (day_view)->style->font;

    if (day_view->resize_drag_pos != E_DAY_VIEW_POS_NONE
        && day_view->resize_event_day == E_DAY_VIEW_LONG_EVENT
        && day_view->resize_event_num == event_num)
        show_icons = FALSE;

    if (day_view->editing_event_day == E_DAY_VIEW_LONG_EVENT
        && day_view->editing_event_num == event_num) {
        show_icons = FALSE;
        use_max_width = TRUE;
    }

    if (show_icons) {
        GSList *categories_list, *elem;

        if (cal_component_has_alarms (comp))
            num_icons++;
        if (cal_component_has_recurrences (comp))
            num_icons++;

        cal_component_get_categories_list (comp, &categories_list);
        num_icons += g_slist_length (categories_list);
        cal_component_free_categories_list (categories_list);
    }

    if (!event->canvas_item) {
        event->canvas_item =
            gnome_canvas_item_new (GNOME_CANVAS_GROUP (GNOME_CANVAS (day_view->top_canvas)->root),
                           e_text_get_type (),
                           "font_gdk", GTK_WIDGET (day_view)->style->font,
                           "anchor", GTK_ANCHOR_NW,
                           "clip", TRUE,
                           "max_lines", 1,
                           "editable", TRUE,
                           "use_ellipsis", TRUE,
                           "draw_background", FALSE,
                           "fill_color_rgba", GNOME_CANVAS_COLOR(0, 0, 0),
                           NULL);
        gtk_signal_connect (GTK_OBJECT (event->canvas_item), "event",
                    GTK_SIGNAL_FUNC (e_day_view_on_text_item_event),
                    day_view);
        e_day_view_update_long_event_label (day_view, event_num);
    }

    /* Calculate its position. We first calculate the ideal position which
       is centered with the icons. We then make sure we haven't gone off
       the left edge of the available space. Finally we make sure we don't
       go off the right edge. */
    icons_width = (E_DAY_VIEW_ICON_WIDTH + E_DAY_VIEW_ICON_X_PAD)
        * num_icons;
    time_width = e_day_view_get_time_string_width (day_view);

    if (use_max_width) {
        text_x = item_x;
        text_w = item_w;
    } else {
        /* Get the requested size of the label. */
        gtk_object_get (GTK_OBJECT (event->canvas_item),
                "text", &text,
                NULL);
        text_width = 0;
        if (text) {
            end_of_line = strchr (text, '\n');
            if (end_of_line)
                line_len = end_of_line - text;
            else
                line_len = strlen (text);
            text_width = gdk_text_width (font, text, line_len);
            g_free (text);
        }

        width = text_width + icons_width;
        text_x = item_x + (item_w - width) / 2;

        min_text_x = item_x;
        if (event->start > day_view->day_starts[start_day])
            min_text_x += time_width + E_DAY_VIEW_LONG_EVENT_TIME_X_PAD;

        text_x = MAX (text_x, min_text_x);

        max_text_w = item_x + item_w - text_x;
        if (event->end < day_view->day_starts[end_day + 1])
            max_text_w -= time_width + E_DAY_VIEW_LONG_EVENT_TIME_X_PAD;

        text_w = MIN (width, max_text_w);

        /* Now take out the space for the icons. */
        text_x += icons_width;
        text_w -= icons_width;
    }

    text_w = MAX (text_w, 0);
    gnome_canvas_item_set (event->canvas_item,
                   "clip_width", (gdouble) text_w,
                   "clip_height", (gdouble) item_h,
                   NULL);
    e_canvas_item_move_absolute(event->canvas_item,
                    text_x, item_y);
}


/* This creates or updates the sizes of the canvas items for one day of the
   main canvas. */
static void
e_day_view_reshape_day_events (EDayView *day_view,
                   gint  day)
{
    gint event_num;

    for (event_num = 0; event_num < day_view->events[day]->len;
         event_num++) {
        e_day_view_reshape_day_event (day_view, day, event_num);
    }
}


static void
e_day_view_reshape_day_event (EDayView *day_view,
                  gint  day,
                  gint  event_num)
{
    EDayViewEvent *event;
    gint item_x, item_y, item_w, item_h;
    gint num_icons, icons_offset;
    CalComponent *comp;

    event = &g_array_index (day_view->events[day], EDayViewEvent,
                event_num);
    comp = event->comp;

    if (!e_day_view_get_event_position (day_view, day, event_num,
                        &item_x, &item_y,
                        &item_w, &item_h)) {
        if (event->canvas_item) {
            gtk_object_destroy (GTK_OBJECT (event->canvas_item));
            event->canvas_item = NULL;
        }
    } else {
        /* Skip the border and padding. */
        item_x += E_DAY_VIEW_BAR_WIDTH + E_DAY_VIEW_EVENT_X_PAD;
        item_w -= E_DAY_VIEW_BAR_WIDTH + E_DAY_VIEW_EVENT_X_PAD * 2;
        item_y += E_DAY_VIEW_EVENT_BORDER_HEIGHT + E_DAY_VIEW_EVENT_Y_PAD;
        item_h -= (E_DAY_VIEW_EVENT_BORDER_HEIGHT + E_DAY_VIEW_EVENT_Y_PAD) * 2;

        /* We don't show the icons while resizing, since we'd have to
           draw them on top of the resize rect. */
        num_icons = 0;
        if (day_view->resize_drag_pos == E_DAY_VIEW_POS_NONE
            || day_view->resize_event_day != day
            || day_view->resize_event_num != event_num) {
            GSList *categories_list;

            if (cal_component_has_alarms (comp))
                num_icons++;
            if (cal_component_has_recurrences (comp))
                num_icons++;

            cal_component_get_categories_list (comp, &categories_list);
            num_icons += g_slist_length (categories_list);
            cal_component_free_categories_list (categories_list);
        }

        if (num_icons > 0) {
            if (item_h >= (E_DAY_VIEW_ICON_HEIGHT + E_DAY_VIEW_ICON_Y_PAD) * num_icons)
                icons_offset = E_DAY_VIEW_ICON_WIDTH + E_DAY_VIEW_ICON_X_PAD * 2;
            else
                icons_offset = (E_DAY_VIEW_ICON_WIDTH + E_DAY_VIEW_ICON_X_PAD) * num_icons + E_DAY_VIEW_ICON_X_PAD;
            item_x += icons_offset;
            item_w -= icons_offset;
        }

        if (!event->canvas_item) {
            event->canvas_item =
                gnome_canvas_item_new (GNOME_CANVAS_GROUP (GNOME_CANVAS (day_view->main_canvas)->root),
                               e_text_get_type (),
                               "font_gdk", GTK_WIDGET (day_view)->style->font,
                               "anchor", GTK_ANCHOR_NW,
                               "line_wrap", TRUE,
                               "editable", TRUE,
                               "clip", TRUE,
                               "use_ellipsis", TRUE,
                               "draw_background", FALSE,
                               "fill_color_rgba", GNOME_CANVAS_COLOR(0, 0, 0),
                               NULL);
            gtk_signal_connect (GTK_OBJECT (event->canvas_item),
                        "event",
                        GTK_SIGNAL_FUNC (e_day_view_on_text_item_event),
                        day_view);
            e_day_view_update_event_label (day_view, day,
                               event_num);
        }

        item_w = MAX (item_w, 0);
        gnome_canvas_item_set (event->canvas_item,
                       "clip_width", (gdouble) item_w,
                       "clip_height", (gdouble) item_h,
                       NULL);
        e_canvas_item_move_absolute(event->canvas_item,
                        item_x, item_y);
    }
}


/* This creates or resizes the horizontal bars used to resize events in the
   main canvas. */
static void
e_day_view_reshape_main_canvas_resize_bars (EDayView *day_view)
{
    gint day, event_num;
    gint item_x, item_y, item_w, item_h;
    gdouble x, y, w, h;

    day = day_view->resize_bars_event_day;
    event_num = day_view->resize_bars_event_num;

    /* If we're not editing an event, or the event is not shown,
       hide the resize bars. */
    if (day != -1 && day == day_view->drag_event_day
        && event_num == day_view->drag_event_num) {
        gtk_object_get (GTK_OBJECT (day_view->drag_rect_item),
                "x1", &x,
                "y1", &y,
                "x2", &w,
                "y2", &h,
                NULL);
        w -= x;
        x++;
        h -= y;
    } else if (day != -1
           && e_day_view_get_event_position (day_view, day, event_num,
                             &item_x, &item_y,
                             &item_w, &item_h)) {
        x = item_x + E_DAY_VIEW_BAR_WIDTH;
        y = item_y;
        w = item_w - E_DAY_VIEW_BAR_WIDTH;
        h = item_h;
    } else {
        gnome_canvas_item_hide (day_view->main_canvas_top_resize_bar_item);
        gnome_canvas_item_hide (day_view->main_canvas_bottom_resize_bar_item);
        return;
    }

    gnome_canvas_item_set (day_view->main_canvas_top_resize_bar_item,
                   "x1", x - E_DAY_VIEW_BAR_WIDTH,
                   "y1", y - E_DAY_VIEW_BAR_HEIGHT,
                   "x2", x + w - 1,
                   "y2", y - 1,
                   NULL);
    gnome_canvas_item_show (day_view->main_canvas_top_resize_bar_item);

    gnome_canvas_item_set (day_view->main_canvas_bottom_resize_bar_item,
                   "x1", x - E_DAY_VIEW_BAR_WIDTH,
                   "y1", y + h,
                   "x2", x + w - 1,
                   "y2", y + h + E_DAY_VIEW_BAR_HEIGHT - 1,
                   NULL);
    gnome_canvas_item_show (day_view->main_canvas_bottom_resize_bar_item);
}


static void
e_day_view_ensure_events_sorted (EDayView *day_view)
{
    gint day;

    /* Sort the long events. */
    if (!day_view->long_events_sorted) {
        qsort (day_view->long_events->data,
               day_view->long_events->len,
               sizeof (EDayViewEvent),
               e_day_view_event_sort_func);
        day_view->long_events_sorted = TRUE;
    }

    /* Sort the events for each day. */
    for (day = 0; day < day_view->days_shown; day++) {
        if (!day_view->events_sorted[day]) {
            qsort (day_view->events[day]->data,
                   day_view->events[day]->len,
                   sizeof (EDayViewEvent),
                   e_day_view_event_sort_func);
            day_view->events_sorted[day] = TRUE;
        }
    }
}


gint
e_day_view_event_sort_func (const void *arg1,
                const void *arg2)
{
    EDayViewEvent *event1, *event2;

    event1 = (EDayViewEvent*) arg1;
    event2 = (EDayViewEvent*) arg2;

    if (event1->start < event2->start)
        return -1;
    if (event1->start > event2->start)
        return 1;

    if (event1->end > event2->end)
        return -1;
    if (event1->end < event2->end)
        return 1;

    return 0;
}


static gint
e_day_view_key_press (GtkWidget *widget, GdkEventKey *event)
{
    EDayView *day_view;
    CalComponent *comp;
    gint day, event_num;
    gchar *initial_text;
    guint keyval;
    gboolean stop_emission;
    time_t dtstart, dtend;
    CalComponentDateTime dt;
    struct icaltimetype itt;
    const char *uid;

    g_return_val_if_fail (widget != NULL, FALSE);
    g_return_val_if_fail (E_IS_DAY_VIEW (widget), FALSE);
    g_return_val_if_fail (event != NULL, FALSE);

    day_view = E_DAY_VIEW (widget);
    keyval = event->keyval;

    /* The Escape key aborts a resize operation. */
    if (day_view->resize_drag_pos != E_DAY_VIEW_POS_NONE) {
        if (keyval == GDK_Escape) {
            e_day_view_abort_resize (day_view, event->time);
        }
        return FALSE;
    }

    /* Handle the cursor keys for moving & extending the selection. */
    stop_emission = TRUE;
    if (event->state & GDK_SHIFT_MASK) {
        switch (keyval) {
        case GDK_Up:
            e_day_view_cursor_key_up_shifted (day_view, event);
            break;
        case GDK_Down:
            e_day_view_cursor_key_down_shifted (day_view, event);
            break;
        case GDK_Left:
            e_day_view_cursor_key_left_shifted (day_view, event);
            break;
        case GDK_Right:
            e_day_view_cursor_key_right_shifted (day_view, event);
            break;
        default:
            stop_emission = FALSE;
            break;
        }
    } else {
        switch (keyval) {
        case GDK_Up:
            e_day_view_cursor_key_up (day_view, event);
            break;
        case GDK_Down:
            e_day_view_cursor_key_down (day_view, event);
            break;
        case GDK_Left:
            e_day_view_cursor_key_left (day_view, event);
            break;