path: root/calendar/gui/e-calendar-table.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/*
 * Author :
 *  Damon Chaplin <damon@ximian.com>
 *
 * Copyright 2000, Helix Code, Inc.
 * Copyright 2000, 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
 */

/*
 * ECalendarTable - displays the CalComponent objects in a table (an ETable).
 * Used for calendar events and tasks.
 */

#include <config.h>
#include <sys/stat.h>
#include <unistd.h>
#include <gnome.h>
#include <gal/e-table/e-table-scrolled.h>
#include <gal/e-table/e-cell-checkbox.h>
#include <gal/e-table/e-cell-toggle.h>
#include <gal/e-table/e-cell-text.h>
#include "e-calendar-table.h"
#include "calendar-model.h"
#include "dialogs/delete-comp.h"
#include "dialogs/task-editor.h"

/* Pixmaps. */
#include "task.xpm"
#include "task-recurring.xpm"
#include "task-assigned.xpm"
#include "task-assigned-to.xpm"

#include "check-filled.xpm"


static void e_calendar_table_class_init     (ECalendarTableClass *class);
static void e_calendar_table_init       (ECalendarTable *cal_table);
static void e_calendar_table_destroy        (GtkObject  *object);

static void e_calendar_table_on_double_click    (ETable     *table,
                         gint        row,
                         gint        col,
                         GdkEvent   *event,
                         ECalendarTable *cal_table);
static gint e_calendar_table_on_right_click (ETable     *table,
                         gint        row,
                         gint        col,
                         GdkEventButton *event,
                         ECalendarTable *cal_table);
static void e_calendar_table_on_open_task   (GtkWidget  *menuitem,
                         gpointer    data);
static void e_calendar_table_on_mark_task_complete (GtkWidget   *menuitem,
                            gpointer     data);
static void e_calendar_table_on_delete_task (GtkWidget  *menuitem,
                         gpointer    data);
static gint e_calendar_table_on_key_press   (ETable     *table,
                         gint        row,
                         gint        col,
                         GdkEventKey    *event,
                         ECalendarTable *cal_table);

static void e_calendar_table_open_task      (ECalendarTable *cal_table,
                         gint        row);

static void e_calendar_table_apply_filter   (ECalendarTable *cal_table);
static void e_calendar_table_on_model_changed   (ETableModel    *model,
                         ECalendarTable *cal_table);
static void e_calendar_table_on_row_inserted    (ETableModel    *model,
                         gint        row,
                         ECalendarTable *cal_table);
static void e_calendar_table_on_row_deleted (ETableModel    *model,
                         gint        row,
                         ECalendarTable *cal_table);


/* The icons to represent the task. */
#define E_CALENDAR_MODEL_NUM_ICONS  4
static char** icon_xpm_data[E_CALENDAR_MODEL_NUM_ICONS] = {
    task_xpm, task_recurring_xpm, task_assigned_xpm, task_assigned_to_xpm
};
static GdkPixbuf* icon_pixbufs[E_CALENDAR_MODEL_NUM_ICONS] = { 0 };

static GtkTableClass *parent_class;


GtkType
e_calendar_table_get_type (void)
{
    static GtkType e_calendar_table_type = 0;

    if (!e_calendar_table_type){
        GtkTypeInfo e_calendar_table_info = {
            "ECalendarTable",
            sizeof (ECalendarTable),
            sizeof (ECalendarTableClass),
            (GtkClassInitFunc) e_calendar_table_class_init,
            (GtkObjectInitFunc) e_calendar_table_init,
            NULL, /* reserved 1 */
            NULL, /* reserved 2 */
            (GtkClassInitFunc) NULL
        };

        parent_class = gtk_type_class (GTK_TYPE_TABLE);
        e_calendar_table_type = gtk_type_unique (GTK_TYPE_TABLE,
                             &e_calendar_table_info);
    }

    return e_calendar_table_type;
}


static void
e_calendar_table_class_init (ECalendarTableClass *class)
{
    GtkObjectClass *object_class;
    GtkWidgetClass *widget_class;

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

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

#if 0
    widget_class->realize       = e_calendar_table_realize;
    widget_class->unrealize     = e_calendar_table_unrealize;
    widget_class->style_set     = e_calendar_table_style_set;
    widget_class->size_allocate = e_calendar_table_size_allocate;
    widget_class->focus_in_event    = e_calendar_table_focus_in;
    widget_class->focus_out_event   = e_calendar_table_focus_out;
    widget_class->key_press_event   = e_calendar_table_key_press;
#endif
}

#ifdef JUST_FOR_TRANSLATORS
static char *list [] = {
    N_("Categories"),
    N_("Classification"),
    N_("Completion Date"),
    N_("End Date"),
    N_("Start Date"),
    N_("Due Date"),
    N_("Geographical Position"),
    N_("Precent complete"),
    N_("Priority"),
    N_("Summary"),
    N_("Transparency"),
    N_("URL"),
    N_("Alarms"),
    N_("Click here to add a task")
};
#endif

#define E_CALENDAR_TABLE_SPEC                       \
    "<ETableSpecification click-to-add=\"true\" "           \
    " _click-to-add-message=\"Click here to add a task\" "      \
    " draw-grid=\"true\">"                      \
        "  <ETableColumn model_col= \"0\" _title=\"Categories\" "   \
    "   expansion=\"1.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col= \"1\" _title=\"Classification\" "   \
    "   expansion=\"1.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col= \"2\" _title=\"Completion Date\" "  \
    "   expansion=\"2.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col= \"3\" _title=\"End Date\" "     \
    "   expansion=\"2.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col= \"4\" _title=\"Start Date\" "   \
    "   expansion=\"2.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col= \"5\" _title=\"Due Date\" "     \
    "   expansion=\"2.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col= \"6\" _title=\"Geographical Position\" " \
    "   expansion=\"1.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col= \"7\" _title=\"% Complete\" "   \
    "   expansion=\"1.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col= \"8\" _title=\"Priority\" "     \
    "   expansion=\"1.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col= \"9\" _title=\"Summary\" "      \
    "   expansion=\"3.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"  compare=\"string\"/>"           \
        "  <ETableColumn model_col=\"10\" _title=\"Transparency\" " \
    "   expansion=\"1.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col=\"11\" _title=\"URL\" "      \
    "   expansion=\"2.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col=\"12\" _title=\"Alarms\" "       \
    "   expansion=\"1.0\" minimum_width=\"10\" resizable=\"true\" " \
    "   cell=\"calstring\"   compare=\"string\"/>"          \
        "  <ETableColumn model_col=\"13\" pixbuf=\"icon\" "     \
    "   expansion=\"1.0\" minimum_width=\"16\" resizable=\"false\" "\
    "   cell=\"icon\"     compare=\"integer\"/>"            \
        "  <ETableColumn model_col=\"14\" pixbuf=\"complete\" "     \
    "   expansion=\"1.0\" minimum_width=\"16\" resizable=\"false\" "\
    "   cell=\"checkbox\" compare=\"integer\"/>"            \
    "  <ETableState>"                       \
    "    <column source=\"13\"/>"                   \
    "    <column source=\"14\"/>"                   \
    "    <column source= \"9\"/>"                   \
    "    <grouping></grouping>"                 \
    "  </ETableState>"                      \
    "</ETableSpecification>"

static void
e_calendar_table_init (ECalendarTable *cal_table)
{
    GtkWidget *table;
    ETable *e_table;
    ECell *cell;
    ETableExtras *extras;
    gint i;
    GdkPixbuf *pixbuf;
    GdkColormap *colormap;
    gboolean success[E_CALENDAR_TABLE_COLOR_LAST];
    gint nfailed;

    /* Allocate the colors we need. */

    colormap = gtk_widget_get_colormap (GTK_WIDGET (cal_table));

    cal_table->colors[E_CALENDAR_TABLE_COLOR_OVERDUE].red   = 65535;
    cal_table->colors[E_CALENDAR_TABLE_COLOR_OVERDUE].green = 0;
    cal_table->colors[E_CALENDAR_TABLE_COLOR_OVERDUE].blue  = 0;

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

    /* Create the model */

    cal_table->model = calendar_model_new ();
    cal_table->subset_model = e_table_subset_variable_new (E_TABLE_MODEL (cal_table->model));

    gtk_signal_connect (GTK_OBJECT (cal_table->model), "model_changed",
                GTK_SIGNAL_FUNC (e_calendar_table_on_model_changed),
                cal_table);
    gtk_signal_connect (GTK_OBJECT (cal_table->model), "model_row_inserted",
                GTK_SIGNAL_FUNC (e_calendar_table_on_row_inserted),
                cal_table);
    gtk_signal_connect (GTK_OBJECT (cal_table->model), "model_row_deleted",
                GTK_SIGNAL_FUNC (e_calendar_table_on_row_deleted),
                cal_table);

    /* Create the header columns */

    extras = e_table_extras_new();

    cell = e_cell_text_new (NULL, GTK_JUSTIFY_LEFT);
    gtk_object_set (GTK_OBJECT (cell),
            "strikeout_column", CAL_COMPONENT_FIELD_COMPLETE,
            "bold_column", CAL_COMPONENT_FIELD_OVERDUE,
            "color_column", CAL_COMPONENT_FIELD_COLOR,
            NULL);
    e_table_extras_add_cell (extras, "calstring", cell);

    /* Create pixmaps */

    if (!icon_pixbufs[0])
        for (i = 0; i < E_CALENDAR_MODEL_NUM_ICONS; i++) {
            icon_pixbufs[i] = gdk_pixbuf_new_from_xpm_data (
                (const char **) icon_xpm_data[i]);
        }

    cell = e_cell_toggle_new (0, E_CALENDAR_MODEL_NUM_ICONS, icon_pixbufs);
    e_table_extras_add_cell(extras, "icon", cell);
    e_table_extras_add_pixbuf(extras, "icon", icon_pixbufs[0]);

    pixbuf = gdk_pixbuf_new_from_xpm_data ((const char **) check_filled_xpm);
    e_table_extras_add_pixbuf(extras, "complete", pixbuf);
    gdk_pixbuf_unref(pixbuf);

    /* Create the table */

    table = e_table_scrolled_new (cal_table->subset_model, extras,
                      E_CALENDAR_TABLE_SPEC, NULL);
    gtk_object_unref (GTK_OBJECT (extras));

    cal_table->etable = table;
    gtk_table_attach (GTK_TABLE (cal_table), table, 0, 1, 0, 1,
              GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
    gtk_widget_show (table);


    e_table = e_table_scrolled_get_table (E_TABLE_SCROLLED (table));
    gtk_signal_connect (GTK_OBJECT (e_table), "double_click",
                GTK_SIGNAL_FUNC (e_calendar_table_on_double_click),
                cal_table);
    gtk_signal_connect (GTK_OBJECT (e_table), "right_click",
                GTK_SIGNAL_FUNC (e_calendar_table_on_right_click),
                cal_table);
    gtk_signal_connect (GTK_OBJECT (e_table), "key_press",
                GTK_SIGNAL_FUNC (e_calendar_table_on_key_press),
                cal_table);
}


/**
 * e_calendar_table_new:
 * @Returns: a new #ECalendarTable.
 *
 * Creates a new #ECalendarTable.
 **/
GtkWidget *
e_calendar_table_new (void)
{
    GtkWidget *cal_table;

    cal_table = GTK_WIDGET (gtk_type_new (e_calendar_table_get_type ()));

    return cal_table;
}


/**
 * e_calendar_table_get_model:
 * @cal_table: A calendar table.
 * 
 * Queries the calendar data model that a calendar table is using.
 * 
 * Return value: A calendar model.
 **/
CalendarModel *
e_calendar_table_get_model (ECalendarTable *cal_table)
{
    g_return_val_if_fail (cal_table != NULL, NULL);
    g_return_val_if_fail (E_IS_CALENDAR_TABLE (cal_table), NULL);

    return cal_table->model;
}


static void
e_calendar_table_destroy (GtkObject *object)
{
    ECalendarTable *cal_table;

    cal_table = E_CALENDAR_TABLE (object);

    gtk_object_unref (GTK_OBJECT (cal_table->model));
    cal_table->model = NULL;

    gtk_object_unref (GTK_OBJECT (cal_table->subset_model));
    cal_table->subset_model = NULL;

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


void
e_calendar_table_set_cal_client (ECalendarTable *cal_table,
                 CalClient  *client)
{
    calendar_model_set_cal_client (cal_table->model, client,
                       CALOBJ_TYPE_TODO);
}


static void
e_calendar_table_on_double_click (ETable *table,
                  gint row, 
                  gint col,
                  GdkEvent *event,
                  ECalendarTable *cal_table)
{
    g_print ("In e_calendar_table_on_double_click\n");

    e_calendar_table_open_task (cal_table, row);
}


static GnomeUIInfo e_calendar_table_popup_uiinfo[] = {
    { GNOME_APP_UI_ITEM, N_("Mark Complete"),
      N_("Mark the task complete"), e_calendar_table_on_mark_task_complete,
      NULL, NULL, 0, 0, 0, 0 },

    GNOMEUIINFO_SEPARATOR,

    { GNOME_APP_UI_ITEM, N_("Edit this task..."),
      N_("Edit the task"), e_calendar_table_on_open_task,
      NULL, NULL, 0, 0, 0, 0 },
    { GNOME_APP_UI_ITEM, N_("Delete this task"),
      N_("Delete the task"), e_calendar_table_on_delete_task,
      NULL, NULL, 0, 0, 0, 0 },

    GNOMEUIINFO_END
};


typedef struct _ECalendarMenuData ECalendarMenuData;
struct _ECalendarMenuData {
    ECalendarTable *cal_table;
    gint row;
};

static gint
e_calendar_table_on_right_click (ETable *table,
                 gint row,
                 gint col,
                 GdkEventButton *event,
                 ECalendarTable *cal_table)
{
    ECalendarMenuData menu_data;
    GtkWidget *popup_menu;

    menu_data.cal_table = cal_table;
    menu_data.row = row;

    popup_menu = gnome_popup_menu_new (e_calendar_table_popup_uiinfo);
    gnome_popup_menu_do_popup_modal (popup_menu, NULL, NULL, event,
                     &menu_data);

    gtk_widget_destroy (popup_menu);

    return TRUE;
}


static void
e_calendar_table_on_open_task (GtkWidget *menuitem,
                   gpointer   data)
{
    ECalendarMenuData *menu_data = (ECalendarMenuData*) data;

    e_calendar_table_open_task (menu_data->cal_table,
                    menu_data->row);
}


static void
e_calendar_table_on_mark_task_complete (GtkWidget *menuitem,
                    gpointer   data)
{
    ECalendarMenuData *menu_data = (ECalendarMenuData*) data;

    calendar_model_mark_task_complete (menu_data->cal_table->model,
                       menu_data->row);
}


/* Deletes a component from the table */
static void
delete_component (CalendarModel *model, int row, GtkWidget *widget)
{
    CalComponent *comp;

    comp = calendar_model_get_component (model, row);

    if (delete_component_dialog (comp, widget)) {
        CalClient *client;
        const char *uid;

        client = calendar_model_get_cal_client (model);
        cal_component_get_uid (comp, &uid);

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

static void
e_calendar_table_on_delete_task (GtkWidget *menuitem,
                 gpointer   data)
{
    ECalendarMenuData *menu_data = (ECalendarMenuData*) data;

    delete_component (menu_data->cal_table->model, menu_data->row, menuitem);
}



static gint
e_calendar_table_on_key_press (ETable *table,
                   gint row,
                   gint col,
                   GdkEventKey *event,
                   ECalendarTable *cal_table)
{
    if (event->keyval == GDK_Delete) {
        delete_component (cal_table->model, row, GTK_WIDGET (table));
        return TRUE;
    }

    return FALSE;
}


static void
e_calendar_table_open_task (ECalendarTable *cal_table,
                gint row)
{
    TaskEditor *tedit;
    CalComponent *comp;

    tedit = task_editor_new ();
    task_editor_set_cal_client (tedit, calendar_model_get_cal_client (cal_table->model));

    comp = calendar_model_get_component (cal_table->model, row);
    task_editor_set_todo_object (tedit, comp);
}


/* Loads the state of the table (headers shown etc.) from the given file. */
void
e_calendar_table_load_state (ECalendarTable *cal_table,
                 gchar      *filename)
{
    struct stat st;

    g_return_if_fail (E_IS_CALENDAR_TABLE (cal_table));

    if (stat (filename, &st) == 0 && st.st_size > 0
        && S_ISREG (st.st_mode)) {
        e_table_load_state (e_table_scrolled_get_table(E_TABLE_SCROLLED (cal_table->etable)), filename);
    }
}


/* Saves the state of the table (headers shown etc.) to the given file. */
void
e_calendar_table_save_state (ECalendarTable *cal_table,
                 gchar      *filename)
{
    g_return_if_fail (E_IS_CALENDAR_TABLE (cal_table));

    e_table_save_state (e_table_scrolled_get_table(E_TABLE_SCROLLED (cal_table->etable)),
                filename);
}


void
e_calendar_table_set_filter_func    (ECalendarTable *cal_table,
                     ECalendarTableFilterFunc filter_func,
                     gpointer    filter_data,
                     GDestroyNotify  filter_data_destroy)
{
    g_return_if_fail (E_IS_CALENDAR_TABLE (cal_table));

    if (cal_table->filter_func == filter_func
        && cal_table->filter_data == filter_data
        && cal_table->filter_data_destroy == filter_data_destroy)
        return;

    if (cal_table->filter_data_destroy)
        (*cal_table->filter_data_destroy) (cal_table->filter_data);

    cal_table->filter_func = filter_func;
    cal_table->filter_data = filter_data;
    cal_table->filter_data_destroy = filter_data_destroy;

    e_calendar_table_apply_filter (cal_table);
}


static void
e_calendar_table_apply_filter       (ECalendarTable *cal_table)
{
    ETableSubsetVariable *etssv;
    CalComponent *comp;
    gint rows, row;

    etssv = E_TABLE_SUBSET_VARIABLE (cal_table->subset_model);

    /* Make sure that any edits get saved first. */
    e_table_model_pre_change (cal_table->subset_model);

    /* FIXME: A hack to remove all the existing rows quickly. */
    E_TABLE_SUBSET (cal_table->subset_model)->n_map = 0;

    if (cal_table->filter_func == NULL) {
        e_table_subset_variable_add_all (etssv);
    } else {
        rows = e_table_model_row_count (E_TABLE_MODEL (cal_table->model));
        for (row = 0; row < rows; row++) {
            comp = calendar_model_get_component (cal_table->model,
                                 row);

            if ((*cal_table->filter_func) (cal_table, comp,
                               cal_table->filter_data))
                e_table_subset_variable_add (etssv, row);
        }
    }

    e_table_model_changed (cal_table->subset_model);
}


gboolean
e_calendar_table_filter_by_category  (ECalendarTable    *cal_table,
                      CalComponent  *comp,
                      gpointer       filter_data)
{
    GSList *categories_list, *elem;
    gboolean retval = FALSE;

    cal_component_get_categories_list (comp, &categories_list);

    for (elem = categories_list; elem; elem = elem->next) {
        if (retval == FALSE
            && !strcmp ((char*) elem->data, (char*) filter_data))
            retval = TRUE;
        g_free (elem->data);
    }

    g_slist_free (categories_list);

    return retval;
}


static void
e_calendar_table_on_model_changed   (ETableModel    *model,
                     ECalendarTable *cal_table)
{
    e_calendar_table_apply_filter (cal_table);
}


static void
e_calendar_table_on_row_inserted    (ETableModel    *model,
                     gint        row,
                     ECalendarTable *cal_table)
{
    ETableSubsetVariable *etssv;
    CalComponent *comp;
    gboolean add_row = FALSE;

    etssv = E_TABLE_SUBSET_VARIABLE (cal_table->subset_model);

    if (cal_table->filter_func == NULL) {
        add_row = TRUE;
    } else {
        comp = calendar_model_get_component (cal_table->model, row);

        if ((*cal_table->filter_func) (cal_table, comp,
                           cal_table->filter_data))
            add_row = TRUE;
    }

    if (add_row) {
        e_table_subset_variable_increment (etssv, row, 1);
        e_table_subset_variable_add (etssv, row);
    }
}


static void
e_calendar_table_on_row_deleted     (ETableModel    *model,
                     gint        row,
                     ECalendarTable *cal_table)
{
    /* We just reapply the filter since we aren't too bothered about
       being efficient. It doesn't happen often. */
    e_calendar_table_apply_filter (cal_table);
}