diff options
Diffstat (limited to 'widgets/misc/e-reflow.c')
| -rw-r--r-- | widgets/misc/e-reflow.c | 861 |
1 files changed, 0 insertions, 861 deletions
diff --git a/widgets/misc/e-reflow.c b/widgets/misc/e-reflow.c deleted file mode 100644 index 735d965120..0000000000 --- a/widgets/misc/e-reflow.c +++ /dev/null @@ -1,861 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* - * e-reflow.c - * Copyright (C) 2000 Helix Code, Inc. - * Author: Chris Lahey <clahey@helixcode.com> - * - * This library 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 library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#include <config.h> -#include <gnome.h> -#include <math.h> -#include "e-reflow.h" -#include "gal/e-text/e-text.h" -#include "e-canvas-utils.h" -#include "e-canvas.h" -#include "gal/util/e-util.h" - -static void e_reflow_init (EReflow *reflow); -static void e_reflow_class_init (EReflowClass *klass); -static void e_reflow_set_arg (GtkObject *o, GtkArg *arg, guint arg_id); -static void e_reflow_get_arg (GtkObject *object, GtkArg *arg, guint arg_id); -static void e_reflow_destroy (GtkObject *object); -static gboolean e_reflow_event (GnomeCanvasItem *item, GdkEvent *event); -static void e_reflow_realize (GnomeCanvasItem *item); -static void e_reflow_unrealize (GnomeCanvasItem *item); -static void e_reflow_draw (GnomeCanvasItem *item, GdkDrawable *drawable, - int x, int y, int width, int height); -static void e_reflow_update (GnomeCanvasItem *item, double affine[6], ArtSVP *clip_path, gint flags); -static double e_reflow_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item); -static void e_reflow_reflow (GnomeCanvasItem *item, int flags); -static void e_reflow_real_add_item(EReflow *e_reflow, GnomeCanvasItem *item, gint *position); -static void set_empty(EReflow *e_reflow); - -static void e_reflow_resize_children (GnomeCanvasItem *item); - -#define E_REFLOW_DIVIDER_WIDTH 2 -#define E_REFLOW_BORDER_WIDTH 7 -#define E_REFLOW_FULL_GUTTER (E_REFLOW_DIVIDER_WIDTH + E_REFLOW_BORDER_WIDTH * 2) - -static GnomeCanvasGroupClass *parent_class = NULL; - -/* The arguments we take */ -enum { - ARG_0, - ARG_MINIMUM_WIDTH, - ARG_WIDTH, - ARG_HEIGHT, - ARG_EMPTY_MESSAGE, -}; - -GtkType -e_reflow_get_type (void) -{ - static GtkType reflow_type = 0; - - if (!reflow_type) - { - static const GtkTypeInfo reflow_info = - { - "EReflow", - sizeof (EReflow), - sizeof (EReflowClass), - (GtkClassInitFunc) e_reflow_class_init, - (GtkObjectInitFunc) e_reflow_init, - /* reserved_1 */ NULL, - /* reserved_2 */ NULL, - (GtkClassInitFunc) NULL, - }; - - reflow_type = gtk_type_unique (gnome_canvas_group_get_type (), &reflow_info); - } - - return reflow_type; -} - -static void -e_reflow_class_init (EReflowClass *klass) -{ - GtkObjectClass *object_class; - GnomeCanvasItemClass *item_class; - - object_class = (GtkObjectClass*) klass; - item_class = (GnomeCanvasItemClass *) klass; - - parent_class = gtk_type_class (gnome_canvas_group_get_type ()); - - gtk_object_add_arg_type ("EReflow::minimum_width", GTK_TYPE_DOUBLE, - GTK_ARG_READWRITE, ARG_MINIMUM_WIDTH); - gtk_object_add_arg_type ("EReflow::width", GTK_TYPE_DOUBLE, - GTK_ARG_READABLE, ARG_WIDTH); - gtk_object_add_arg_type ("EReflow::height", GTK_TYPE_DOUBLE, - GTK_ARG_READWRITE, ARG_HEIGHT); - gtk_object_add_arg_type ("EReflow::empty_message", GTK_TYPE_STRING, - GTK_ARG_READWRITE, ARG_EMPTY_MESSAGE); - - klass->add_item = e_reflow_real_add_item; - - object_class->set_arg = e_reflow_set_arg; - object_class->get_arg = e_reflow_get_arg; - object_class->destroy = e_reflow_destroy; - - /* GnomeCanvasItem method overrides */ - item_class->event = e_reflow_event; - item_class->realize = e_reflow_realize; - item_class->unrealize = e_reflow_unrealize; - item_class->draw = e_reflow_draw; - item_class->update = e_reflow_update; - item_class->point = e_reflow_point; -} - -static void -e_reflow_init (EReflow *reflow) -{ - reflow->items = NULL; - reflow->columns = NULL; - reflow->column_width = 150; - - reflow->minimum_width = 10; - reflow->width = 10; - reflow->height = 10; - reflow->idle = 0; - - reflow->empty_message = NULL; - reflow->empty_text = NULL; - - reflow->column_drag = FALSE; - - reflow->need_height_update = FALSE; - reflow->need_column_resize = FALSE; - - reflow->default_cursor_shown = TRUE; - reflow->arrow_cursor = NULL; - reflow->default_cursor = NULL; - - e_canvas_item_set_reflow_callback(GNOME_CANVAS_ITEM(reflow), e_reflow_reflow); -} - -static void -e_reflow_set_arg (GtkObject *o, GtkArg *arg, guint arg_id) -{ - GnomeCanvasItem *item; - EReflow *e_reflow; - - item = GNOME_CANVAS_ITEM (o); - e_reflow = E_REFLOW (o); - - switch (arg_id){ - case ARG_HEIGHT: - e_reflow->height = GTK_VALUE_DOUBLE (*arg); - e_canvas_item_request_reflow(item); - break; - case ARG_MINIMUM_WIDTH: - e_reflow->minimum_width = GTK_VALUE_DOUBLE (*arg); - if (GNOME_CANVAS_ITEM_REALIZED & GTK_OBJECT_FLAGS(o)) - set_empty(e_reflow); - e_canvas_item_request_reflow(item); - break; - case ARG_EMPTY_MESSAGE: - g_free(e_reflow->empty_message); - e_reflow->empty_message = g_strdup(GTK_VALUE_STRING (*arg)); - if (GNOME_CANVAS_ITEM_REALIZED & GTK_OBJECT_FLAGS(o)) - set_empty(e_reflow); - } -} - -static void -e_reflow_get_arg (GtkObject *object, GtkArg *arg, guint arg_id) -{ - EReflow *e_reflow; - - e_reflow = E_REFLOW (object); - - switch (arg_id) { - case ARG_MINIMUM_WIDTH: - GTK_VALUE_DOUBLE (*arg) = e_reflow->minimum_width; - break; - case ARG_WIDTH: - GTK_VALUE_DOUBLE (*arg) = e_reflow->width; - break; - case ARG_HEIGHT: - GTK_VALUE_DOUBLE (*arg) = e_reflow->height; - break; - case ARG_EMPTY_MESSAGE: - GTK_VALUE_STRING (*arg) = g_strdup(e_reflow->empty_message); - break; - default: - arg->type = GTK_TYPE_INVALID; - break; - } -} - -static void -e_reflow_destroy (GtkObject *object) -{ - EReflow *reflow = E_REFLOW(object); - - g_list_foreach(reflow->items, (GFunc) gtk_object_unref, NULL); - g_list_free(reflow->items); - reflow->items = NULL; - - g_free(reflow->empty_message); - - GTK_OBJECT_CLASS(parent_class)->destroy (object); -} - -static void -e_reflow_realize (GnomeCanvasItem *item) -{ - EReflow *e_reflow; - GnomeCanvasGroup *group; - GList *list; - GtkAdjustment *adjustment; - - e_reflow = E_REFLOW (item); - group = GNOME_CANVAS_GROUP( item ); - - if (GNOME_CANVAS_ITEM_CLASS(parent_class)->realize) - (* GNOME_CANVAS_ITEM_CLASS(parent_class)->realize) (item); - - e_reflow->arrow_cursor = gdk_cursor_new (GDK_SB_H_DOUBLE_ARROW); - e_reflow->default_cursor = gdk_cursor_new (GDK_LEFT_PTR); - - for(list = e_reflow->items; list; list = g_list_next(list)) { - GnomeCanvasItem *item = GNOME_CANVAS_ITEM(list->data); - gnome_canvas_item_set(item, - "width", (double) e_reflow->column_width, - NULL); - } - - set_empty(e_reflow); - - e_canvas_item_request_reflow(item); - - adjustment = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas)); - adjustment->step_increment = (e_reflow->column_width + E_REFLOW_FULL_GUTTER) / 2; - adjustment->page_increment = adjustment->page_size - adjustment->step_increment; - gtk_adjustment_changed(adjustment); - - if (!item->canvas->aa) { - } -} - -static void -e_reflow_unrealize (GnomeCanvasItem *item) -{ - EReflow *e_reflow; - - e_reflow = E_REFLOW (item); - - if (!item->canvas->aa) - { - } - - gdk_cursor_destroy (e_reflow->arrow_cursor); - gdk_cursor_destroy (e_reflow->default_cursor); - e_reflow->arrow_cursor = NULL; - e_reflow->default_cursor = NULL; - - g_list_free (e_reflow->columns); - e_reflow->columns = NULL; - - if (GNOME_CANVAS_ITEM_CLASS(parent_class)->unrealize) - (* GNOME_CANVAS_ITEM_CLASS(parent_class)->unrealize) (item); -} - -static gint -e_reflow_pick_line (EReflow *e_reflow, double x) -{ - x += E_REFLOW_BORDER_WIDTH + E_REFLOW_DIVIDER_WIDTH; - x /= e_reflow->column_width + E_REFLOW_FULL_GUTTER; - return x; -} - -static gboolean -e_reflow_event (GnomeCanvasItem *item, GdkEvent *event) -{ - EReflow *e_reflow; - - e_reflow = E_REFLOW (item); - - switch( event->type ) - { - case GDK_KEY_PRESS: - if (event->key.keyval == GDK_Tab || - event->key.keyval == GDK_KP_Tab || - event->key.keyval == GDK_ISO_Left_Tab) { - GList *list; - for (list = e_reflow->items; list; list = list->next) { - GnomeCanvasItem *item = GNOME_CANVAS_ITEM (list->data); - EFocus has_focus; - gtk_object_get(GTK_OBJECT(item), - "has_focus", &has_focus, - NULL); - if (has_focus) { - if (event->key.state & GDK_SHIFT_MASK) - list = list->prev; - else - list = list->next; - if (list) { - item = GNOME_CANVAS_ITEM(list->data); - gnome_canvas_item_set(item, - "has_focus", (event->key.state & GDK_SHIFT_MASK) ? E_FOCUS_END : E_FOCUS_START, - NULL); - return 1; - } else { - return 0; - } - } - } - } - break; - case GDK_BUTTON_PRESS: - switch(event->button.button) - { - case 1: - { - GdkEventButton *button = (GdkEventButton *) event; - double n_x, max_x; - n_x = button->x; - n_x += E_REFLOW_BORDER_WIDTH + E_REFLOW_DIVIDER_WIDTH; - n_x = fmod(n_x,(e_reflow->column_width + E_REFLOW_FULL_GUTTER)); - - max_x = E_REFLOW_BORDER_WIDTH; - max_x += (e_reflow->column_width + E_REFLOW_FULL_GUTTER) * e_reflow->column_count; - if ( button->y >= E_REFLOW_BORDER_WIDTH && button->y <= e_reflow->height - E_REFLOW_BORDER_WIDTH && n_x < E_REFLOW_FULL_GUTTER && max_x > button->x ) { - e_reflow->which_column_dragged = e_reflow_pick_line(e_reflow, button->x); - e_reflow->start_x = e_reflow->which_column_dragged * (e_reflow->column_width + E_REFLOW_FULL_GUTTER) - E_REFLOW_DIVIDER_WIDTH / 2; - e_reflow->temp_column_width = e_reflow->column_width; - e_reflow->column_drag = TRUE; - - gnome_canvas_item_grab (item, - GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK, - e_reflow->arrow_cursor, - button->time); - - e_reflow->previous_temp_column_width = -1; - e_reflow->need_column_resize = TRUE; - gnome_canvas_item_request_update(item); - return TRUE; - } - } - break; - case 4: - { - GtkAdjustment *adjustment = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas)); - gdouble new_value = adjustment->value; - new_value -= adjustment->step_increment; - gtk_adjustment_set_value(adjustment, new_value); - } - break; - case 5: - { - GtkAdjustment *adjustment = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas)); - gdouble new_value = adjustment->value; - new_value += adjustment->step_increment; - if ( new_value > adjustment->upper - adjustment->page_size ) - new_value = adjustment->upper - adjustment->page_size; - gtk_adjustment_set_value(adjustment, new_value); - } - break; - } - break; - case GDK_BUTTON_RELEASE: - if (e_reflow->column_drag) { - gdouble old_width = e_reflow->column_width; - GdkEventButton *button = (GdkEventButton *) event; - GtkAdjustment *adjustment = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas)); - e_reflow->temp_column_width = e_reflow->column_width + - (button->x - e_reflow->start_x)/(e_reflow->which_column_dragged - e_reflow_pick_line(e_reflow, adjustment->value)); - if ( e_reflow->temp_column_width < 50 ) - e_reflow->temp_column_width = 50; - e_reflow->column_drag = FALSE; - if ( old_width != e_reflow->temp_column_width ) { - gtk_adjustment_set_value(adjustment, adjustment->value + e_reflow_pick_line(e_reflow, adjustment->value) * (e_reflow->temp_column_width - e_reflow->column_width)); - e_reflow->column_width = e_reflow->temp_column_width; - adjustment->step_increment = (e_reflow->column_width + E_REFLOW_FULL_GUTTER) / 2; - adjustment->page_increment = adjustment->page_size - adjustment->step_increment; - gtk_adjustment_changed(adjustment); - e_reflow_resize_children(item); - e_canvas_item_request_reflow(item); - } - e_reflow->need_column_resize = TRUE; - gnome_canvas_item_request_update(item); - gnome_canvas_item_ungrab (item, button->time); - return TRUE; - } - break; - case GDK_MOTION_NOTIFY: - if (e_reflow->column_drag) { - double old_width = e_reflow->temp_column_width; - GdkEventMotion *motion = (GdkEventMotion *) event; - GtkAdjustment *adjustment = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas)); - e_reflow->temp_column_width = e_reflow->column_width + - (motion->x - e_reflow->start_x)/(e_reflow->which_column_dragged - e_reflow_pick_line(e_reflow, adjustment->value)); - if (e_reflow->temp_column_width < 50) - e_reflow->temp_column_width = 50; - if (old_width != e_reflow->temp_column_width) { - e_reflow->need_column_resize = TRUE; - gnome_canvas_item_request_update(item); - } - return TRUE; - } else { - GdkEventMotion *motion = (GdkEventMotion *) event; - double n_x, max_x; - - n_x = motion->x; - n_x += E_REFLOW_BORDER_WIDTH + E_REFLOW_DIVIDER_WIDTH; - n_x = fmod(n_x,(e_reflow->column_width + E_REFLOW_FULL_GUTTER)); - - max_x = E_REFLOW_BORDER_WIDTH; - max_x += (e_reflow->column_width + E_REFLOW_FULL_GUTTER) * e_reflow->column_count; - - if ( motion->y >= E_REFLOW_BORDER_WIDTH && motion->y <= e_reflow->height - E_REFLOW_BORDER_WIDTH && n_x < E_REFLOW_FULL_GUTTER && max_x > motion->x) { - if ( e_reflow->default_cursor_shown ) { - gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, e_reflow->arrow_cursor); - e_reflow->default_cursor_shown = FALSE; - } - } else - if ( ! e_reflow->default_cursor_shown ) { - gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, e_reflow->default_cursor); - e_reflow->default_cursor_shown = TRUE; - } - - } - break; - case GDK_ENTER_NOTIFY: - if (!e_reflow->column_drag) { - GdkEventCrossing *crossing = (GdkEventCrossing *) event; - double n_x, max_x; - n_x = crossing->x; - n_x += E_REFLOW_BORDER_WIDTH + E_REFLOW_DIVIDER_WIDTH; - n_x = fmod(n_x,(e_reflow->column_width + E_REFLOW_FULL_GUTTER)); - - max_x = E_REFLOW_BORDER_WIDTH; - max_x += (e_reflow->column_width + E_REFLOW_FULL_GUTTER) * e_reflow->column_count; - if ( crossing->y >= E_REFLOW_BORDER_WIDTH && crossing->y <= e_reflow->height - E_REFLOW_BORDER_WIDTH && n_x < E_REFLOW_FULL_GUTTER && max_x > crossing->x) { - if ( e_reflow->default_cursor_shown ) { - gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, e_reflow->arrow_cursor); - e_reflow->default_cursor_shown = FALSE; - } - } - } - break; - case GDK_LEAVE_NOTIFY: - if (!e_reflow->column_drag) { - GdkEventCrossing *crossing = (GdkEventCrossing *) event; - double n_x; - n_x = crossing->x; - n_x += E_REFLOW_BORDER_WIDTH + E_REFLOW_DIVIDER_WIDTH; - n_x = fmod(n_x,(e_reflow->column_width + E_REFLOW_FULL_GUTTER)); - if ( !( crossing->y >= E_REFLOW_BORDER_WIDTH && crossing->y <= e_reflow->height - E_REFLOW_BORDER_WIDTH && n_x < E_REFLOW_FULL_GUTTER ) ) { - if ( ! e_reflow->default_cursor_shown ) { - gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, e_reflow->default_cursor); - e_reflow->default_cursor_shown = TRUE; - } - } - } - break; - default: - break; - } - - if (GNOME_CANVAS_ITEM_CLASS( parent_class )->event) - return (* GNOME_CANVAS_ITEM_CLASS( parent_class )->event) (item, event); - else - return 0; -} - -static void -e_reflow_real_add_item(EReflow *e_reflow, GnomeCanvasItem *item, gint *position) -{ - e_reflow->items = g_list_append(e_reflow->items, item); - gtk_object_ref(GTK_OBJECT(item)); - if (GTK_OBJECT_FLAGS (e_reflow) & GNOME_CANVAS_ITEM_REALIZED) { - gnome_canvas_item_set(item, - "width", (double) e_reflow->column_width, - NULL); - e_reflow_post_add_item(e_reflow, item); - e_canvas_item_request_reflow(item); - } - if (position) - *position = g_list_index(e_reflow->items, item); -} - -static void e_reflow_draw (GnomeCanvasItem *item, GdkDrawable *drawable, - int x, int y, int width, int height) -{ - int x_rect, y_rect, width_rect, height_rect; - gdouble running_width; - EReflow *e_reflow = E_REFLOW(item); - int i; - double column_width; - - if (GNOME_CANVAS_ITEM_CLASS(parent_class)->draw) - GNOME_CANVAS_ITEM_CLASS(parent_class)->draw (item, drawable, x, y, width, height); - column_width = e_reflow->column_width; - running_width = E_REFLOW_BORDER_WIDTH + column_width + E_REFLOW_BORDER_WIDTH; - x_rect = running_width; - y_rect = E_REFLOW_BORDER_WIDTH; - width_rect = E_REFLOW_DIVIDER_WIDTH; - height_rect = e_reflow->height - (E_REFLOW_BORDER_WIDTH * 2); - - /* Compute first column to draw. */ - i = x; - i /= column_width + E_REFLOW_FULL_GUTTER; - running_width += i * (column_width + E_REFLOW_FULL_GUTTER); - - for ( ; i < e_reflow->column_count; i++) { - if ( running_width > x + width ) - break; - x_rect = running_width; - gtk_paint_flat_box(GTK_WIDGET(item->canvas)->style, - drawable, - GTK_STATE_ACTIVE, - GTK_SHADOW_NONE, - NULL, - GTK_WIDGET(item->canvas), - "reflow", - x_rect - x, - y_rect - y, - width_rect, - height_rect); - running_width += E_REFLOW_DIVIDER_WIDTH + E_REFLOW_BORDER_WIDTH + column_width + E_REFLOW_BORDER_WIDTH; - } - if (e_reflow->column_drag) { - int start_line = e_reflow_pick_line(e_reflow, - gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas))->value); - i = x - start_line * (column_width + E_REFLOW_FULL_GUTTER); - running_width = start_line * (column_width + E_REFLOW_FULL_GUTTER); - column_width = e_reflow->temp_column_width; - running_width -= start_line * (column_width + E_REFLOW_FULL_GUTTER); - i += start_line * (column_width + E_REFLOW_FULL_GUTTER); - running_width += E_REFLOW_BORDER_WIDTH + column_width + E_REFLOW_BORDER_WIDTH; - x_rect = running_width; - y_rect = E_REFLOW_BORDER_WIDTH; - width_rect = E_REFLOW_DIVIDER_WIDTH; - height_rect = e_reflow->height - (E_REFLOW_BORDER_WIDTH * 2); - - /* Compute first column to draw. */ - i /= column_width + E_REFLOW_FULL_GUTTER; - running_width += i * (column_width + E_REFLOW_FULL_GUTTER); - - for ( ; i < e_reflow->column_count; i++) { - if ( running_width > x + width ) - break; - x_rect = running_width; - gdk_draw_rectangle(drawable, - GTK_WIDGET(item->canvas)->style->fg_gc[GTK_STATE_NORMAL], - TRUE, - x_rect - x, - y_rect - y, - width_rect - 1, - height_rect - 1); - running_width += E_REFLOW_DIVIDER_WIDTH + E_REFLOW_BORDER_WIDTH + column_width + E_REFLOW_BORDER_WIDTH; - } - } -} - -static void -e_reflow_update (GnomeCanvasItem *item, double affine[6], ArtSVP *clip_path, gint flags) -{ - EReflow *e_reflow; - double x0, x1, y0, y1; - - e_reflow = E_REFLOW (item); - - if (GNOME_CANVAS_ITEM_CLASS(parent_class)->update) - GNOME_CANVAS_ITEM_CLASS(parent_class)->update (item, affine, clip_path, flags); - - x0 = item->x1; - y0 = item->y1; - x1 = item->x2; - y1 = item->y2; - if ( x1 < x0 + e_reflow->width ) - x1 = x0 + e_reflow->width; - if ( y1 < y0 + e_reflow->height ) - y1 = y0 + e_reflow->height; - item->x2 = x1; - item->y2 = y1; - - if (e_reflow->need_height_update) { - x0 = item->x1; - y0 = item->y1; - x1 = item->x2; - y1 = item->y2; - if ( x0 > 0 ) - x0 = 0; - if ( y0 > 0 ) - y0 = 0; - if ( x1 < E_REFLOW(item)->width ) - x1 = E_REFLOW(item)->width; - if ( x1 < E_REFLOW(item)->height ) - x1 = E_REFLOW(item)->height; - - gnome_canvas_request_redraw(item->canvas, x0, y0, x1, y1); - e_reflow->need_height_update = FALSE; - } else if (e_reflow->need_column_resize) { - int x_rect, y_rect, width_rect, height_rect; - int start_line = e_reflow_pick_line(e_reflow, - gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas))->value); - gdouble running_width; - int i; - double column_width; - - if ( e_reflow->previous_temp_column_width != -1 ) { - running_width = start_line * (e_reflow->column_width + E_REFLOW_FULL_GUTTER); - column_width = e_reflow->previous_temp_column_width; - running_width -= start_line * (column_width + E_REFLOW_FULL_GUTTER); - running_width += E_REFLOW_BORDER_WIDTH + column_width + E_REFLOW_BORDER_WIDTH; - y_rect = E_REFLOW_BORDER_WIDTH; - width_rect = E_REFLOW_DIVIDER_WIDTH; - height_rect = e_reflow->height - (E_REFLOW_BORDER_WIDTH * 2); - - for ( i = 0; i < e_reflow->column_count; i++) { - x_rect = running_width; - gnome_canvas_request_redraw(item->canvas, x_rect, y_rect, x_rect + width_rect, y_rect + height_rect); - running_width += E_REFLOW_DIVIDER_WIDTH + E_REFLOW_BORDER_WIDTH + column_width + E_REFLOW_BORDER_WIDTH; - } - } - - if ( e_reflow->temp_column_width != -1 ) { - running_width = start_line * (e_reflow->column_width + E_REFLOW_FULL_GUTTER); - column_width = e_reflow->temp_column_width; - running_width -= start_line * (column_width + E_REFLOW_FULL_GUTTER); - running_width += E_REFLOW_BORDER_WIDTH + column_width + E_REFLOW_BORDER_WIDTH; - y_rect = E_REFLOW_BORDER_WIDTH; - width_rect = E_REFLOW_DIVIDER_WIDTH; - height_rect = e_reflow->height - (E_REFLOW_BORDER_WIDTH * 2); - - for ( i = 0; i < e_reflow->column_count; i++) { - x_rect = running_width; - gnome_canvas_request_redraw(item->canvas, x_rect, y_rect, x_rect + width_rect, y_rect + height_rect); - running_width += E_REFLOW_DIVIDER_WIDTH + E_REFLOW_BORDER_WIDTH + column_width + E_REFLOW_BORDER_WIDTH; - } - } - - e_reflow->previous_temp_column_width = e_reflow->temp_column_width; - e_reflow->need_column_resize = FALSE; - } -} - -static void -e_reflow_resize_children (GnomeCanvasItem *item) -{ - GList *list; - EReflow *e_reflow; - - e_reflow = E_REFLOW (item); - for ( list = e_reflow->items; list; list = list->next ) { - GnomeCanvasItem *child = GNOME_CANVAS_ITEM(list->data); - gnome_canvas_item_set(child, - "width", (double) e_reflow->column_width, - NULL); - } -} - -static double -e_reflow_point (GnomeCanvasItem *item, - double x, double y, int cx, int cy, - GnomeCanvasItem **actual_item) -{ - double distance = 1; - - if (GNOME_CANVAS_ITEM_CLASS(parent_class)->point) - distance = GNOME_CANVAS_ITEM_CLASS(parent_class)->point (item, x, y, cx, cy, actual_item); - if (*actual_item) - return 0; - - *actual_item = item; - return 0; -#if 0 - if (y >= E_REFLOW_BORDER_WIDTH && y <= e_reflow->height - E_REFLOW_BORDER_WIDTH) { - float n_x; - n_x = x; - n_x += E_REFLOW_BORDER_WIDTH + E_REFLOW_DIVIDER_WIDTH; - n_x = fmod(n_x, (e_reflow->column_width + E_REFLOW_FULL_GUTTER)); - if (n_x < E_REFLOW_FULL_GUTTER) { - *actual_item = item; - return 0; - } - } - return distance; -#endif -} - -static void -_reflow( EReflow *e_reflow ) -{ - gdouble running_height; - GList *list; - double item_height; - - if (e_reflow->columns) { - g_list_free (e_reflow->columns); - e_reflow->columns = NULL; - } - - e_reflow->column_count = 0; - - if (e_reflow->items == NULL) { - e_reflow->columns = NULL; - e_reflow->column_count = 0; - return; - } - - list = e_reflow->items; - - gtk_object_get (GTK_OBJECT(list->data), - "height", &item_height, - NULL); - running_height = E_REFLOW_BORDER_WIDTH + item_height + E_REFLOW_BORDER_WIDTH; - e_reflow->columns = g_list_append (e_reflow->columns, list); - e_reflow->column_count = 1; - - list = g_list_next(list); - - for ( ; list; list = g_list_next(list)) { - gtk_object_get (GTK_OBJECT(list->data), - "height", &item_height, - NULL); - if (running_height + item_height + E_REFLOW_BORDER_WIDTH > e_reflow->height) { - running_height = E_REFLOW_BORDER_WIDTH + item_height + E_REFLOW_BORDER_WIDTH; - e_reflow->columns = g_list_append (e_reflow->columns, list); - e_reflow->column_count ++; - } else { - running_height += item_height + E_REFLOW_BORDER_WIDTH; - } - } -} - -static void -set_empty(EReflow *e_reflow) -{ - if (e_reflow->items == NULL) { - if (e_reflow->empty_text) { - if (e_reflow->empty_message) { - gnome_canvas_item_set(e_reflow->empty_text, - "width", e_reflow->minimum_width, - "text", e_reflow->empty_message, - NULL); - e_canvas_item_move_absolute(e_reflow->empty_text, - e_reflow->minimum_width / 2, - 0); - } else { - gtk_object_destroy(GTK_OBJECT(e_reflow->empty_text)); - e_reflow->empty_text = NULL; - } - } else { - if (e_reflow->empty_message) - e_reflow->empty_text = - gnome_canvas_item_new(GNOME_CANVAS_GROUP(e_reflow), - e_text_get_type(), - "anchor", GTK_ANCHOR_N, - "width", e_reflow->minimum_width, - "clip", TRUE, - "use_ellipsis", TRUE, - "font_gdk", GTK_WIDGET(GNOME_CANVAS_ITEM(e_reflow)->canvas)->style->font, - "fill_color", "black", - "justification", GTK_JUSTIFY_CENTER, - "text", e_reflow->empty_message, - "draw_background", FALSE, - NULL); - e_canvas_item_move_absolute(e_reflow->empty_text, - e_reflow->minimum_width / 2, - 0); - } - } else { - if (e_reflow->empty_text) { - gtk_object_destroy(GTK_OBJECT(e_reflow->empty_text)); - e_reflow->empty_text = NULL; - } - } -} - -static void -e_reflow_reflow( GnomeCanvasItem *item, int flags ) -{ - EReflow *e_reflow = E_REFLOW(item); - if ( GTK_OBJECT_FLAGS( e_reflow ) & GNOME_CANVAS_ITEM_REALIZED ) { - - gdouble old_width; - gdouble running_width; - - _reflow (e_reflow); - - old_width = e_reflow->width; - - running_width = E_REFLOW_BORDER_WIDTH; - - if (e_reflow->items == NULL) { - } else { - GList *list; - GList *next_column; - gdouble item_height; - gdouble running_height; - - running_height = E_REFLOW_BORDER_WIDTH; - - list = e_reflow->items; - gtk_object_get (GTK_OBJECT(list->data), - "height", &item_height, - NULL); - e_canvas_item_move_absolute(GNOME_CANVAS_ITEM(list->data), - (double) running_width, - (double) running_height); - running_height += item_height + E_REFLOW_BORDER_WIDTH; - next_column = g_list_next(e_reflow->columns); - list = g_list_next(list); - - for( ; list; list = g_list_next(list)) { - gtk_object_get (GTK_OBJECT(list->data), - "height", &item_height, - NULL); - - if (next_column && (next_column->data == list)) { - next_column = g_list_next (next_column); - running_height = E_REFLOW_BORDER_WIDTH; - running_width += e_reflow->column_width + E_REFLOW_BORDER_WIDTH + E_REFLOW_DIVIDER_WIDTH + E_REFLOW_BORDER_WIDTH; - } - e_canvas_item_move_absolute(GNOME_CANVAS_ITEM(list->data), - (double) running_width, - (double) running_height); - - running_height += item_height + E_REFLOW_BORDER_WIDTH; - } - - } - e_reflow->width = running_width + e_reflow->column_width + E_REFLOW_BORDER_WIDTH; - if ( e_reflow->width < e_reflow->minimum_width ) - e_reflow->width = e_reflow->minimum_width; - if (old_width != e_reflow->width) - e_canvas_item_request_parent_reflow(item); - } -} - -void -e_reflow_add_item(EReflow *e_reflow, GnomeCanvasItem *item, gint *position) -{ - if (E_REFLOW_CLASS(GTK_OBJECT(e_reflow)->klass)->add_item) - (E_REFLOW_CLASS(GTK_OBJECT(e_reflow)->klass)->add_item) (e_reflow, item, position); -} - -void -e_reflow_post_add_item(EReflow *e_reflow, GnomeCanvasItem *item) -{ - set_empty(e_reflow); -} |