aboutsummaryrefslogtreecommitdiffstats
path: root/widgets/table/e-cell-combo.c
diff options
context:
space:
mode:
Diffstat (limited to 'widgets/table/e-cell-combo.c')
-rw-r--r--widgets/table/e-cell-combo.c571
1 files changed, 0 insertions, 571 deletions
diff --git a/widgets/table/e-cell-combo.c b/widgets/table/e-cell-combo.c
deleted file mode 100644
index 8aa689937a..0000000000
--- a/widgets/table/e-cell-combo.c
+++ /dev/null
@@ -1,571 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-
-/*
- * Author :
- * Damon Chaplin <damon@ximian.com>
- *
- * Copyright 2001, 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
- */
-
-/*
- * ECellCombo - a subclass of ECellPopup used to support popup lists like a
- * GtkCombo widget. It only supports a basic popup list of strings at present,
- * with no auto-completion.
- */
-
-/*
- * Notes: (handling pointer grabs and GTK+ grabs is a nightmare!)
- *
- * o We must grab the pointer when we show the popup, so that if any buttons
- * are pressed outside the application we hide the popup.
- *
- * o We have to be careful when popping up any widgets which also grab the
- * pointer at some point, since we will lose our own pointer grab.
- * When we pop up a list it will grab the pointer itself when an item is
- * selected, and release the grab when the button is released.
- * Fortunately we hide the popup at this point, so it isn't a problem.
- * But for other types of widgets in the popup it could cause trouble.
- * - I think GTK+ should provide help for this (nested pointer grabs?).
- *
- * o We must set the 'owner_events' flag of the pointer grab to TRUE so that
- * pointer events get reported to all the application windows as normal.
- * If we don't do this then the widgets in the popup may not work properly.
- *
- * o We must do a gtk_grab_add() so that we only allow events to go to the
- * widgets within the popup (though some special events still get reported
- * to the widget owning the window). Doing th gtk_grab_add() on the toplevel
- * popup window should be fine. We can then check for any events that should
- * close the popup, like the Escape key, or a button press outside the popup.
- */
-
-#include <config.h>
-#include <gdk/gdkkeysyms.h>
-#include "gal/util/e-util.h"
-#include "e-table-item.h"
-#include "e-cell-combo.h"
-
-
-/* The height to make the popup list if there aren't any items in it. */
-#define E_CELL_COMBO_LIST_EMPTY_HEIGHT 15
-
-
-static void e_cell_combo_class_init (GtkObjectClass *object_class);
-static void e_cell_combo_init (ECellCombo *ecc);
-static void e_cell_combo_destroy (GtkObject *object);
-
-static gint e_cell_combo_do_popup (ECellPopup *ecp,
- GdkEvent *event);
-static void e_cell_combo_show_popup (ECellCombo *ecc);
-static void e_cell_combo_get_popup_pos (ECellCombo *ecc,
- gint *x,
- gint *y,
- gint *height,
- gint *width);
-
-static gint e_cell_combo_button_press (GtkWidget *popup_window,
- GdkEvent *event,
- ECellCombo *ecc);
-static gint e_cell_combo_button_release (GtkWidget *popup_window,
- GdkEventButton *event,
- ECellCombo *ecc);
-static int e_cell_combo_key_press (GtkWidget *popup_window,
- GdkEventKey *event,
- ECellCombo *ecc);
-
-static void e_cell_combo_update_cell (ECellCombo *ecc);
-static void e_cell_combo_restart_edit (ECellCombo *ecc);
-
-
-static ECellPopupClass *parent_class;
-
-
-E_MAKE_TYPE (e_cell_combo, "ECellCombo", ECellCombo,
- e_cell_combo_class_init, e_cell_combo_init,
- e_cell_popup_get_type());
-
-
-static void
-e_cell_combo_class_init (GtkObjectClass *object_class)
-{
- ECellPopupClass *ecpc = (ECellPopupClass *) object_class;
-
- object_class->destroy = e_cell_combo_destroy;
-
- ecpc->popup = e_cell_combo_do_popup;
-
- parent_class = gtk_type_class (e_cell_popup_get_type ());
-}
-
-
-static void
-e_cell_combo_init (ECellCombo *ecc)
-{
- GtkWidget *frame;
-
- /* We create one popup window for the ECell, since there will only
- ever be one popup in use at a time. */
- ecc->popup_window = gtk_window_new (GTK_WINDOW_POPUP);
-
- gtk_window_set_policy (GTK_WINDOW (ecc->popup_window),
- TRUE, TRUE, FALSE);
-
- frame = gtk_frame_new (NULL);
- gtk_container_add (GTK_CONTAINER (ecc->popup_window), frame);
- gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
- gtk_widget_show (frame);
-
- ecc->popup_scrolled_window = gtk_scrolled_window_new (NULL, NULL);
- gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window),
- GTK_POLICY_AUTOMATIC,
- GTK_POLICY_AUTOMATIC);
- GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window)->hscrollbar, GTK_CAN_FOCUS);
- GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window)->vscrollbar, GTK_CAN_FOCUS);
- gtk_container_add (GTK_CONTAINER (frame), ecc->popup_scrolled_window);
- gtk_widget_show (ecc->popup_scrolled_window);
-
- ecc->popup_list = gtk_list_new ();
- gtk_list_set_selection_mode (GTK_LIST (ecc->popup_list),
- GTK_SELECTION_BROWSE);
- gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window), ecc->popup_list);
- gtk_container_set_focus_vadjustment (GTK_CONTAINER (ecc->popup_list),
- gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window)));
- gtk_container_set_focus_hadjustment (GTK_CONTAINER (ecc->popup_list),
- gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window)));
- gtk_widget_show (ecc->popup_list);
-
- gtk_signal_connect (GTK_OBJECT (ecc->popup_window),
- "button_press_event",
- GTK_SIGNAL_FUNC (e_cell_combo_button_press),
- ecc);
- /* We use connect_after here so the list updates the selection before
- we hide the popup and update the cell. */
- gtk_signal_connect_after (GTK_OBJECT (ecc->popup_window),
- "button_release_event",
- GTK_SIGNAL_FUNC (e_cell_combo_button_release),
- ecc);
- gtk_signal_connect (GTK_OBJECT (ecc->popup_window),
- "key_press_event",
- GTK_SIGNAL_FUNC (e_cell_combo_key_press), ecc);
-}
-
-
-/**
- * e_cell_combo_new:
- *
- * Creates a new ECellCombo renderer.
- *
- * Returns: an ECellCombo object.
- */
-ECell *
-e_cell_combo_new (void)
-{
- ECellCombo *ecc = gtk_type_new (e_cell_combo_get_type ());
-
- return (ECell*) ecc;
-}
-
-
-/*
- * GtkObject::destroy method
- */
-static void
-e_cell_combo_destroy (GtkObject *object)
-{
- ECellCombo *ecc = E_CELL_COMBO (object);
-
- gtk_widget_unref (ecc->popup_window);
-
- GTK_OBJECT_CLASS (parent_class)->destroy (object);
-}
-
-
-
-void
-e_cell_combo_set_popdown_strings (ECellCombo *ecc,
- GList *strings)
-{
- GList *elem;
- GtkWidget *listitem;
-
- g_return_if_fail (E_IS_CELL_COMBO (ecc));
- g_return_if_fail (strings != NULL);
-
- gtk_list_clear_items (GTK_LIST (ecc->popup_list), 0, -1);
- elem = strings;
- while (elem) {
- listitem = gtk_list_item_new_with_label ((gchar *) elem->data);
- gtk_widget_show (listitem);
- gtk_container_add (GTK_CONTAINER (ecc->popup_list), listitem);
- elem = elem->next;
- }
-}
-
-
-static gint
-e_cell_combo_do_popup (ECellPopup *ecp,
- GdkEvent *event)
-{
- ECellCombo *ecc = E_CELL_COMBO (ecp);
- guint32 time;
- gint error_code;
-
- e_cell_combo_show_popup (ecc);
-
- if (event->type == GDK_BUTTON_PRESS) {
- GTK_LIST (ecc->popup_list)->drag_selection = TRUE;
- time = event->button.time;
- } else {
- time = event->key.time;
- }
-
- error_code = gdk_pointer_grab (ecc->popup_list->window, TRUE,
- GDK_ENTER_NOTIFY_MASK |
- GDK_BUTTON_PRESS_MASK |
- GDK_BUTTON_RELEASE_MASK |
- GDK_POINTER_MOTION_HINT_MASK |
- GDK_BUTTON1_MOTION_MASK,
- NULL, NULL, time);
- if (error_code != 0)
- g_warning ("Failed to get pointer grab (%i)", error_code);
- gtk_grab_add (ecc->popup_window);
-
- return TRUE;
-}
-
-
-static void
-e_cell_combo_show_popup (ECellCombo *ecc)
-{
- gint x, y, width, height, old_width, old_height;
-
- g_print ("In e_cell_popup_popup_list\n");
-
- /* This code is practically copied from GtkCombo. */
- old_width = ecc->popup_window->allocation.width;
- old_height = ecc->popup_window->allocation.height;
-
- e_cell_combo_get_popup_pos (ecc, &x, &y, &height, &width);
-
- /* workaround for gtk_scrolled_window_size_allocate bug */
- if (old_width != width || old_height != height) {
- gtk_widget_hide (GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window)->hscrollbar);
- gtk_widget_hide (GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window)->vscrollbar);
- }
-
- gtk_widget_set_uposition (ecc->popup_window, x, y);
- gtk_widget_set_usize (ecc->popup_window, width, height);
- gtk_widget_realize (ecc->popup_window);
- gdk_window_resize (ecc->popup_window->window, width, height);
- gtk_widget_show (ecc->popup_window);
-
- gtk_widget_grab_focus (ecc->popup_list);
-
- E_CELL_POPUP (ecc)->popup_shown = TRUE;
-}
-
-
-/* Calculates the size and position of the popup window (like GtkCombo). */
-static void
-e_cell_combo_get_popup_pos (ECellCombo *ecc,
- gint *x,
- gint *y,
- gint *height,
- gint *width)
-{
- ECellPopup *ecp = E_CELL_POPUP (ecc);
- ETableItem *eti = E_TABLE_ITEM (ecp->popup_cell_view->cell_view.e_table_item_view);
- GtkWidget *canvas = GTK_WIDGET (GNOME_CANVAS_ITEM (eti)->canvas);
- GtkBin *popwin;
- GtkScrolledWindow *popup;
- GtkRequisition list_requisition;
- gboolean show_vscroll = FALSE, show_hscroll = FALSE;
- gint avail_height, avail_width, min_height, work_height, screen_width;
- gint column_width, row_height, scrollbar_width;
- double x1, y1;
-
- /* This code is practically copied from GtkCombo. */
- popup = GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window);
- popwin = GTK_BIN (ecc->popup_window);
-
- gdk_window_get_origin (canvas->window, x, y);
-
- x1 = e_table_header_col_diff (eti->header, 0, eti->editing_col + 1);
- y1 = e_table_item_row_diff (eti, 0, eti->editing_row + 1);
- column_width = e_table_header_col_diff (eti->header, eti->editing_col,
- eti->editing_col + 1);
- row_height = e_table_item_row_diff (eti, eti->editing_row,
- eti->editing_row + 1);
- gnome_canvas_item_i2w (GNOME_CANVAS_ITEM (eti), &x1, &y1);
-
- *x += x1;
- /* The ETable positions don't include the grid lines, I think, so we
- add 1. */
- *y += y1 + 1;
-
- scrollbar_width = popup->vscrollbar->requisition.width
- + GTK_SCROLLED_WINDOW_CLASS (GTK_OBJECT (popup)->klass)->scrollbar_spacing;
-
- avail_height = gdk_screen_height () - *y;
-
- /* We'll use the entire screen width if needed, but we save space for
- the vertical scrollbar in case we need to show that. */
- screen_width = gdk_screen_width ();
- avail_width = screen_width - scrollbar_width;
-
- gtk_widget_size_request (ecc->popup_list, &list_requisition);
- min_height = MIN (list_requisition.height,
- popup->vscrollbar->requisition.height);
- if (!GTK_LIST (ecc->popup_list)->children)
- list_requisition.height += E_CELL_COMBO_LIST_EMPTY_HEIGHT;
-
- /* Calculate the desired width. */
- *width = list_requisition.width
- + 2 * popwin->child->style->klass->xthickness
- + 2 * GTK_CONTAINER (popwin->child)->border_width
- + 2 * GTK_CONTAINER (popup)->border_width
- + 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width
- + 2 * GTK_BIN (popup)->child->style->klass->xthickness;
-
- /* Use at least the same width as the column. */
- if (*width < column_width)
- *width = column_width;
-
- /* If it is larger than the available width, use that instead and show
- the horizontal scrollbar. */
- if (*width > avail_width) {
- *width = avail_width;
- show_hscroll = TRUE;
- }
-
- /* Calculate all the borders etc. that we need to add to the height. */
- work_height = (2 * popwin->child->style->klass->ythickness
- + 2 * GTK_CONTAINER (popwin->child)->border_width
- + 2 * GTK_CONTAINER (popup)->border_width
- + 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width
- + 2 * GTK_BIN (popup)->child->style->klass->xthickness);
-
- /* Add on the height of the horizontal scrollbar if we need it. */
- if (show_hscroll)
- work_height += popup->hscrollbar->requisition.height +
- GTK_SCROLLED_WINDOW_CLASS (GTK_OBJECT (popup)->klass)->scrollbar_spacing;
-
- /* Check if it fits in the available height. */
- if (work_height + list_requisition.height > avail_height) {
- /* It doesn't fit, so we see if we have the minimum space
- needed. */
- if (work_height + min_height > avail_height
- && *y - row_height > avail_height) {
- /* We don't, so we show the popup above the cell
- instead of below it. */
- avail_height = *y - row_height;
- *y -= (work_height + list_requisition.height
- + row_height);
- if (*y < 0)
- *y = 0;
- }
- }
-
- /* Check if we still need the vertical scrollbar. */
- if (work_height + list_requisition.height > avail_height) {
- *width += scrollbar_width;
- show_vscroll = TRUE;
- }
-
- /* We try to line it up with the right edge of the column, but we don't
- want it to go off the edges of the screen. */
- if (*x > screen_width)
- *x = screen_width;
- *x -= *width;
- if (*x < 0)
- *x = 0;
-
- if (show_vscroll)
- *height = avail_height;
- else
- *height = work_height + list_requisition.height;
-}
-
-
-
-
-
-
-/* This handles button press events in the popup window.
- Note that since we have a pointer grab on this window, we also get button
- press events for windows outside the application here, so we hide the popup
- window if that happens. We also get propagated events from child widgets
- which we ignore. */
-static gint
-e_cell_combo_button_press (GtkWidget *popup_window,
- GdkEvent *event,
- ECellCombo *ecc)
-{
- GtkWidget *event_widget;
-
- g_print ("In e_cell_popup_button_press\n");
-
- event_widget = gtk_get_event_widget (event);
-
- /* If the button press was for a widget inside the popup list, but
- not the popup window itself, then we ignore the event and return
- FALSE. Otherwise we will hide the popup.
- Note that since we have a pointer grab on the popup list, button
- presses outside the application will be reported to this window,
- which is why we hide the popup in this case. */
- while (event_widget) {
- event_widget = event_widget->parent;
- if (event_widget == ecc->popup_list)
- return FALSE;
- }
-
- gtk_grab_remove (ecc->popup_window);
- gdk_pointer_ungrab (event->button.time);
- gtk_widget_hide (ecc->popup_window);
-
- E_CELL_POPUP (ecc)->popup_shown = FALSE;
-
- e_cell_combo_update_cell (ecc);
- e_cell_combo_restart_edit (ecc);
-
- return TRUE;
-}
-
-
-/* This handles button release events in the popup window. If the button is
- released inside the list, we want to hide the popup window and update the
- cell with the new selection. */
-static gint
-e_cell_combo_button_release (GtkWidget *popup_window,
- GdkEventButton *event,
- ECellCombo *ecc)
-{
- GtkWidget *event_widget;
-
- event_widget = gtk_get_event_widget ((GdkEvent*) event);
-
- g_print ("In e_cell_popup_button_release event_widget:%s\n",
- gtk_widget_get_name (event_widget));
-
- /* See if the button was released in the list (or its children). */
- while (event_widget && event_widget != ecc->popup_list)
- event_widget = event_widget->parent;
-
- /* If it wasn't, then we just ignore the event. */
- if (event_widget != ecc->popup_list)
- return FALSE;
-
- /* The button was released inside the list, so we hide the popup and
- update the cell to reflect the new selection. */
- gtk_grab_remove (ecc->popup_window);
- gdk_pointer_ungrab (event->time);
- gtk_widget_hide (ecc->popup_window);
-
- E_CELL_POPUP (ecc)->popup_shown = FALSE;
-
- e_cell_combo_update_cell (ecc);
- e_cell_combo_restart_edit (ecc);
-
- return TRUE;
-}
-
-
-/* This handles key press events in the popup window. If the Escape key is
- pressed we hide the popup, and do not change the cell contents. */
-static int
-e_cell_combo_key_press (GtkWidget *popup_window,
- GdkEventKey *event,
- ECellCombo *ecc)
-{
- g_print ("In e_cell_popup_key_press\n");
-
- /* If the Escape key is pressed we hide the popup. */
- if (event->keyval != GDK_Escape
- && event->keyval != GDK_Return
- && event->keyval != GDK_KP_Enter
- && event->keyval != GDK_ISO_Enter
- && event->keyval != GDK_3270_Enter)
- return FALSE;
-
- gtk_grab_remove (ecc->popup_window);
- gdk_pointer_ungrab (event->time);
- gtk_widget_hide (ecc->popup_window);
-
- E_CELL_POPUP (ecc)->popup_shown = FALSE;
-
- if (event->keyval != GDK_Escape)
- e_cell_combo_update_cell (ecc);
-
- e_cell_combo_restart_edit (ecc);
-
- return TRUE;
-}
-
-
-static void
-e_cell_combo_update_cell (ECellCombo *ecc)
-{
- ECellPopup *ecp = E_CELL_POPUP (ecc);
- ECellView *ecv = (ECellView*) ecp->popup_cell_view;
- ETableItem *eti = E_TABLE_ITEM (ecv->e_table_item_view);
- ETableCol *ecol;
- GtkList *list = GTK_LIST (ecc->popup_list);
- GtkListItem *listitem;
- gchar *text, *old_text;
-
- g_print ("In e_cell_popup_update_cell\n");
-
- /* Return if no item is selected. */
- if (list->selection == NULL)
- return;
-
- /* Get the text of the selected item. */
- listitem = list->selection->data;
- gtk_label_get (GTK_LABEL (GTK_BIN (listitem)->child), &text);
-
- /* Compare it with the existing cell contents. */
- ecol = e_table_header_get_column (eti->header, ecp->popup_view_col);
- old_text = e_table_model_value_at (ecv->e_table_model,
- ecol->col_idx, ecp->popup_row);
-
- g_print (" Old text: %s New text: %s\n", old_text, text);
-
- /* If they are different, update the cell contents. */
- if (strcmp (old_text, text)) {
- g_print (" Setting cell text...\n");
- e_table_model_set_value_at (ecv->e_table_model,
- ecol->col_idx, ecp->popup_row,
- text);
- g_print (" Set cell text.\n");
- }
-}
-
-
-static void
-e_cell_combo_restart_edit (ECellCombo *ecc)
-{
- /* This doesn't work. ETable stops the edit straight-away again. */
-#if 0
- ECellView *ecv = (ECellView*) ecc->popup_cell_view;
- ETableItem *eti = E_TABLE_ITEM (ecv->e_table_item_view);
-
- e_table_item_enter_edit (eti, ecc->popup_view_col, ecc->popup_row);
-#endif
-}
-
-
-