+++ /dev/null
-/* gtkcombo - combo widget for gtk+
- * Copyright 1997 Paolo Molaro
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser 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.
- */
-
-/*
- * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
- * file for a list of people on the GTK+ Team. See the ChangeLog
- * files for a list of changes. These files are distributed with
- * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
- */
-
-/* Do NOT, I repeat, NOT, copy any of the code in this file.
- * The code here relies on all sorts of internal details of GTK+
- */
-
-#undef GTK_DISABLE_DEPRECATED
-
-#include "config.h"
-#include <string.h>
-
-#include <gdk/gdkkeysyms.h>
-
-#include "gtkarrow.h"
-#include "gtklabel.h"
-#include "gtklist.h"
-#include "gtkentry.h"
-#include "gtkeventbox.h"
-#include "gtkbutton.h"
-#include "gtklistitem.h"
-#include "gtkscrolledwindow.h"
-#include "gtkmain.h"
-#include "gtkwindow.h"
-#include "gtkcombo.h"
-#include "gtkframe.h"
-#include "gtkprivate.h"
-#include "gtkintl.h"
-
-#include "gtkalias.h"
-
-static const gchar gtk_combo_string_key[] = "gtk-combo-string-value";
-
-#define COMBO_LIST_MAX_HEIGHT (400)
-#define EMPTY_LIST_HEIGHT (15)
-
-enum {
- PROP_0,
- PROP_ENABLE_ARROW_KEYS,
- PROP_ENABLE_ARROWS_ALWAYS,
- PROP_CASE_SENSITIVE,
- PROP_ALLOW_EMPTY,
- PROP_VALUE_IN_LIST
-};
-
-static void gtk_combo_realize (GtkWidget *widget);
-static void gtk_combo_unrealize (GtkWidget *widget);
-static void gtk_combo_destroy (GtkObject *combo);
-static GtkListItem *gtk_combo_find (GtkCombo *combo);
-static gchar * gtk_combo_func (GtkListItem *li);
-static gboolean gtk_combo_focus_idle (GtkCombo *combo);
-static gint gtk_combo_entry_focus_out (GtkEntry *entry,
- GdkEventFocus *event,
- GtkCombo *combo);
-static void gtk_combo_get_pos (GtkCombo *combo,
- gint *x,
- gint *y,
- gint *height,
- gint *width);
-static void gtk_combo_popup_list (GtkCombo *combo);
-static void gtk_combo_popdown_list (GtkCombo *combo);
-
-static void gtk_combo_activate (GtkWidget *widget,
- GtkCombo *combo);
-static gboolean gtk_combo_popup_button_press (GtkWidget *button,
- GdkEventButton *event,
- GtkCombo *combo);
-static gboolean gtk_combo_popup_button_leave (GtkWidget *button,
- GdkEventCrossing *event,
- GtkCombo *combo);
-static void gtk_combo_update_entry (GtkCombo *combo);
-static void gtk_combo_update_list (GtkEntry *entry,
- GtkCombo *combo);
-static gint gtk_combo_button_press (GtkWidget *widget,
- GdkEvent *event,
- GtkCombo *combo);
-static void gtk_combo_button_event_after (GtkWidget *widget,
- GdkEvent *event,
- GtkCombo *combo);
-static gint gtk_combo_list_enter (GtkWidget *widget,
- GdkEventCrossing *event,
- GtkCombo *combo);
-static gint gtk_combo_list_key_press (GtkWidget *widget,
- GdkEventKey *event,
- GtkCombo *combo);
-static gint gtk_combo_entry_key_press (GtkEntry *widget,
- GdkEventKey *event,
- GtkCombo *combo);
-static gint gtk_combo_window_key_press (GtkWidget *window,
- GdkEventKey *event,
- GtkCombo *combo);
-static void gtk_combo_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation);
-static void gtk_combo_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec);
-static void gtk_combo_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec);
-
-G_DEFINE_TYPE (GtkCombo, gtk_combo, GTK_TYPE_HBOX)
-
-static void
-gtk_combo_class_init (GtkComboClass * klass)
-{
- GObjectClass *gobject_class;
- GtkObjectClass *oclass;
- GtkWidgetClass *widget_class;
-
- gobject_class = (GObjectClass *) klass;
- oclass = (GtkObjectClass *) klass;
- widget_class = (GtkWidgetClass *) klass;
-
- gobject_class->set_property = gtk_combo_set_property;
- gobject_class->get_property = gtk_combo_get_property;
-
- g_object_class_install_property (gobject_class,
- PROP_ENABLE_ARROW_KEYS,
- g_param_spec_boolean ("enable-arrow-keys",
- P_("Enable arrow keys"),
- P_("Whether the arrow keys move through the list of items"),
- TRUE,
- GTK_PARAM_READWRITE));
- g_object_class_install_property (gobject_class,
- PROP_ENABLE_ARROWS_ALWAYS,
- g_param_spec_boolean ("enable-arrows-always",
- P_("Always enable arrows"),
- P_("Obsolete property, ignored"),
- TRUE,
- GTK_PARAM_READWRITE));
- g_object_class_install_property (gobject_class,
- PROP_CASE_SENSITIVE,
- g_param_spec_boolean ("case-sensitive",
- P_("Case sensitive"),
- P_("Whether list item matching is case sensitive"),
- FALSE,
- GTK_PARAM_READWRITE));
-
- g_object_class_install_property (gobject_class,
- PROP_ALLOW_EMPTY,
- g_param_spec_boolean ("allow-empty",
- P_("Allow empty"),
- P_("Whether an empty value may be entered in this field"),
- TRUE,
- GTK_PARAM_READWRITE));
-
- g_object_class_install_property (gobject_class,
- PROP_VALUE_IN_LIST,
- g_param_spec_boolean ("value-in-list",
- P_("Value in list"),
- P_("Whether entered values must already be present in the list"),
- FALSE,
- GTK_PARAM_READWRITE));
-
-
- oclass->destroy = gtk_combo_destroy;
-
- widget_class->size_allocate = gtk_combo_size_allocate;
- widget_class->realize = gtk_combo_realize;
- widget_class->unrealize = gtk_combo_unrealize;
-}
-
-static void
-gtk_combo_destroy (GtkObject *object)
-{
- GtkCombo *combo = GTK_COMBO (object);
-
- if (combo->popwin)
- {
- gtk_widget_destroy (combo->popwin);
- g_object_unref (combo->popwin);
- combo->popwin = NULL;
- }
-
- GTK_OBJECT_CLASS (gtk_combo_parent_class)->destroy (object);
-}
-
-static int
-gtk_combo_entry_key_press (GtkEntry * entry, GdkEventKey * event, GtkCombo * combo)
-{
- GList *li;
- guint state = event->state & gtk_accelerator_get_default_mod_mask ();
-
- /* completion */
- if ((event->keyval == GDK_Tab || event->keyval == GDK_KP_Tab) &&
- state == GDK_MOD1_MASK)
- {
- GtkEditable *editable = GTK_EDITABLE (entry);
- GCompletion * cmpl;
- gchar* prefix;
- gchar* nprefix = NULL;
- gint pos;
-
- if ( !GTK_LIST (combo->list)->children )
- return FALSE;
-
- cmpl = g_completion_new ((GCompletionFunc)gtk_combo_func);
- g_completion_add_items (cmpl, GTK_LIST (combo->list)->children);
-
- pos = gtk_editable_get_position (editable);
- prefix = gtk_editable_get_chars (editable, 0, pos);
-
- g_completion_complete_utf8 (cmpl, prefix, &nprefix);
-
- if (nprefix && strlen (nprefix) > strlen (prefix))
- {
- gtk_editable_insert_text (editable, g_utf8_offset_to_pointer (nprefix, pos),
- strlen (nprefix) - strlen (prefix), &pos);
- gtk_editable_set_position (editable, pos);
- }
-
- g_free (nprefix);
- g_free (prefix);
- g_completion_free (cmpl);
-
- return TRUE;
- }
-
- if ((event->keyval == GDK_Down || event->keyval == GDK_KP_Down) &&
- state == GDK_MOD1_MASK)
- {
- gtk_combo_activate (NULL, combo);
- return TRUE;
- }
-
- if (!combo->use_arrows || !GTK_LIST (combo->list)->children)
- return FALSE;
-
- gtk_combo_update_list (GTK_ENTRY (combo->entry), combo);
- li = g_list_find (GTK_LIST (combo->list)->children, gtk_combo_find (combo));
-
- if (((event->keyval == GDK_Up || event->keyval == GDK_KP_Up) && state == 0) ||
- ((event->keyval == 'p' || event->keyval == 'P') && state == GDK_MOD1_MASK))
- {
- if (!li)
- li = g_list_last (GTK_LIST (combo->list)->children);
- else
- li = li->prev;
-
- if (li)
- {
- gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
- gtk_combo_update_entry (combo);
- }
-
- return TRUE;
- }
- if (((event->keyval == GDK_Down || event->keyval == GDK_KP_Down) && state == 0) ||
- ((event->keyval == 'n' || event->keyval == 'N') && state == GDK_MOD1_MASK))
- {
- if (!li)
- li = GTK_LIST (combo->list)->children;
- else if (li)
- li = li->next;
- if (li)
- {
- gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
- gtk_combo_update_entry (combo);
- }
-
- return TRUE;
- }
- return FALSE;
-}
-
-static int
-gtk_combo_window_key_press (GtkWidget *window,
- GdkEventKey *event,
- GtkCombo *combo)
-{
- guint state = event->state & gtk_accelerator_get_default_mod_mask ();
-
- if ((event->keyval == GDK_Return ||
- event->keyval == GDK_ISO_Enter ||
- event->keyval == GDK_KP_Enter) &&
- state == 0)
- {
- gtk_combo_popdown_list (combo);
- gtk_combo_update_entry (combo);
-
- return TRUE;
- }
- else if ((event->keyval == GDK_Up || event->keyval == GDK_KP_Up) &&
- state == GDK_MOD1_MASK)
- {
- gtk_combo_popdown_list (combo);
-
- return TRUE;
- }
- else if ((event->keyval == GDK_space || event->keyval == GDK_KP_Space) &&
- state == 0)
- {
- gtk_combo_update_entry (combo);
- }
-
- return FALSE;
-}
-
-static GtkListItem *
-gtk_combo_find (GtkCombo * combo)
-{
- const gchar *text;
- GtkListItem *found = NULL;
- gchar *ltext;
- gchar *compare_text;
- GList *clist;
-
- text = gtk_entry_get_text (GTK_ENTRY (combo->entry));
- if (combo->case_sensitive)
- compare_text = (gchar *)text;
- else
- compare_text = g_utf8_casefold (text, -1);
-
- for (clist = GTK_LIST (combo->list)->children;
- !found && clist;
- clist = clist->next)
- {
- ltext = gtk_combo_func (GTK_LIST_ITEM (clist->data));
- if (!ltext)
- continue;
-
- if (!combo->case_sensitive)
- ltext = g_utf8_casefold (ltext, -1);
-
- if (strcmp (ltext, compare_text) == 0)
- found = clist->data;
-
- if (!combo->case_sensitive)
- g_free (ltext);
- }
-
- if (!combo->case_sensitive)
- g_free (compare_text);
-
- return found;
-}
-
-static gchar *
-gtk_combo_func (GtkListItem * li)
-{
- GtkWidget *label;
- gchar *ltext = NULL;
-
- ltext = g_object_get_data (G_OBJECT (li), I_(gtk_combo_string_key));
- if (!ltext)
- {
- label = GTK_BIN (li)->child;
- if (!label || !GTK_IS_LABEL (label))
- return NULL;
- ltext = (gchar *) gtk_label_get_text (GTK_LABEL (label));
- }
- return ltext;
-}
-
-static gint
-gtk_combo_focus_idle (GtkCombo * combo)
-{
- if (combo)
- {
- GDK_THREADS_ENTER ();
- gtk_widget_grab_focus (combo->entry);
- GDK_THREADS_LEAVE ();
- }
- return FALSE;
-}
-
-static gint
-gtk_combo_entry_focus_out (GtkEntry * entry, GdkEventFocus * event, GtkCombo * combo)
-{
-
- if (combo->value_in_list && !gtk_combo_find (combo))
- {
- GSource *focus_idle;
-
- /* gdk_beep(); *//* this can be annoying */
- if (combo->ok_if_empty && !strcmp (gtk_entry_get_text (entry), ""))
- return FALSE;
-#ifdef TEST
- printf ("INVALID ENTRY: `%s'\n", gtk_entry_get_text (entry));
-#endif
- gtk_grab_add (GTK_WIDGET (combo));
- /* this is needed because if we call gtk_widget_grab_focus()
- it isn't guaranteed it's the *last* call before the main-loop,
- so the focus can be lost anyway...
- the signal_stop_emission doesn't seem to work either...
- */
- focus_idle = g_idle_source_new ();
- g_source_set_closure (focus_idle,
- g_cclosure_new_object (G_CALLBACK (gtk_combo_focus_idle),
- G_OBJECT (combo)));
- g_source_attach (focus_idle, NULL);
- g_source_unref (focus_idle);
-
- /*g_signal_stop_emission_by_name (entry, "focus_out_event"); */
- return TRUE;
- }
- return FALSE;
-}
-
-static void
-gtk_combo_get_pos (GtkCombo * combo, gint * x, gint * y, gint * height, gint * width)
-{
- GtkBin *popwin;
- GtkWidget *widget;
- GtkScrolledWindow *popup;
-
- gint real_height;
- GtkRequisition list_requisition;
- gboolean show_hscroll = FALSE;
- gboolean show_vscroll = FALSE;
- gint avail_height;
- gint min_height;
- gint alloc_width;
- gint work_height;
- gint old_height;
- gint old_width;
- gint scrollbar_spacing;
-
- widget = GTK_WIDGET (combo);
- popup = GTK_SCROLLED_WINDOW (combo->popup);
- popwin = GTK_BIN (combo->popwin);
-
- scrollbar_spacing = _gtk_scrolled_window_get_scrollbar_spacing (popup);
-
- gdk_window_get_origin (combo->entry->window, x, y);
- if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
- *x -= widget->allocation.width - combo->entry->allocation.width;
- real_height = MIN (combo->entry->requisition.height,
- combo->entry->allocation.height);
- *y += real_height;
- avail_height = gdk_screen_get_height (gtk_widget_get_screen (widget)) - *y;
-
- gtk_widget_size_request (combo->list, &list_requisition);
- min_height = MIN (list_requisition.height,
- popup->vscrollbar->requisition.height);
- if (!GTK_LIST (combo->list)->children)
- list_requisition.height += EMPTY_LIST_HEIGHT;
-
- alloc_width = (widget->allocation.width -
- 2 * popwin->child->style->xthickness -
- 2 * GTK_CONTAINER (popwin->child)->border_width -
- 2 * GTK_CONTAINER (combo->popup)->border_width -
- 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width -
- 2 * GTK_BIN (popup)->child->style->xthickness);
-
- work_height = (2 * popwin->child->style->ythickness +
- 2 * GTK_CONTAINER (popwin->child)->border_width +
- 2 * GTK_CONTAINER (combo->popup)->border_width +
- 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width +
- 2 * GTK_BIN (popup)->child->style->ythickness);
-
- do
- {
- old_width = alloc_width;
- old_height = work_height;
-
- if (!show_hscroll &&
- alloc_width < list_requisition.width)
- {
- GtkRequisition requisition;
-
- gtk_widget_size_request (popup->hscrollbar, &requisition);
- work_height += (requisition.height + scrollbar_spacing);
-
- show_hscroll = TRUE;
- }
- if (!show_vscroll &&
- work_height + list_requisition.height > avail_height)
- {
- GtkRequisition requisition;
-
- if (work_height + min_height > avail_height &&
- *y - real_height > avail_height)
- {
- *y -= (work_height + list_requisition.height + real_height);
- break;
- }
- gtk_widget_size_request (popup->hscrollbar, &requisition);
- alloc_width -= (requisition.width + scrollbar_spacing);
- show_vscroll = TRUE;
- }
- } while (old_width != alloc_width || old_height != work_height);
-
- *width = widget->allocation.width;
- if (show_vscroll)
- *height = avail_height;
- else
- *height = work_height + list_requisition.height;
-
- if (*x < 0)
- *x = 0;
-}
-
-static void
-gtk_combo_popup_list (GtkCombo *combo)
-{
- GtkWidget *toplevel;
- GtkList *list;
- gint height, width, x, y;
- gint old_width, old_height;
-
- old_width = combo->popwin->allocation.width;
- old_height = combo->popwin->allocation.height;
-
- gtk_combo_get_pos (combo, &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 (combo->popup)->hscrollbar);
- gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar);
- }
-
- gtk_combo_update_list (GTK_ENTRY (combo->entry), combo);
-
- /* We need to make sure some child of combo->popwin
- * is focused to disable GtkWindow's automatic
- * "focus-the-first-item" code. If there is no selected
- * child, we focus the list itself with some hackery.
- */
- list = GTK_LIST (combo->list);
-
- if (list->selection)
- {
- gtk_widget_grab_focus (list->selection->data);
- }
- else
- {
- gtk_widget_set_can_focus (GTK_WIDGET (list), TRUE);
- gtk_widget_grab_focus (combo->list);
- GTK_LIST (combo->list)->last_focus_child = NULL;
- gtk_widget_set_can_focus (GTK_WIDGET (list), FALSE);
- }
-
- gtk_window_move (GTK_WINDOW (combo->popwin), x, y);
-
- toplevel = gtk_widget_get_toplevel (GTK_WIDGET (combo));
-
- if (GTK_IS_WINDOW (toplevel))
- {
- gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
- GTK_WINDOW (combo->popwin));
- gtk_window_set_transient_for (GTK_WINDOW (combo->popwin), GTK_WINDOW (toplevel));
- }
-
- gtk_widget_set_size_request (combo->popwin, width, height);
- gtk_widget_show (combo->popwin);
-
- gtk_widget_grab_focus (combo->popwin);
-}
-
-static void
-gtk_combo_popdown_list (GtkCombo *combo)
-{
- combo->current_button = 0;
-
- if (GTK_BUTTON (combo->button)->in_button)
- {
- GTK_BUTTON (combo->button)->in_button = FALSE;
- g_signal_emit_by_name (combo->button, "released");
- }
-
- if (GTK_WIDGET_HAS_GRAB (combo->popwin))
- {
- gtk_grab_remove (combo->popwin);
- gdk_display_pointer_ungrab (gtk_widget_get_display (GTK_WIDGET (combo)),
- gtk_get_current_event_time ());
- gdk_display_keyboard_ungrab (gtk_widget_get_display (GTK_WIDGET (combo)),
- gtk_get_current_event_time ());
- }
-
- gtk_widget_hide (combo->popwin);
-
- gtk_window_group_add_window (gtk_window_get_group (NULL), GTK_WINDOW (combo->popwin));
-}
-
-static gboolean
-popup_grab_on_window (GdkWindow *window,
- guint32 activate_time)
-{
- if ((gdk_pointer_grab (window, TRUE,
- GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
- GDK_POINTER_MOTION_MASK,
- NULL, NULL, activate_time) == 0))
- {
- if (gdk_keyboard_grab (window, TRUE,
- activate_time) == 0)
- return TRUE;
- else
- {
- gdk_display_pointer_ungrab (gdk_drawable_get_display (window),
- activate_time);
- return FALSE;
- }
- }
-
- return FALSE;
-}
-
-static void
-gtk_combo_activate (GtkWidget *widget,
- GtkCombo *combo)
-{
- if (!combo->button->window ||
- !popup_grab_on_window (combo->button->window,
- gtk_get_current_event_time ()))
- return;
-
- gtk_combo_popup_list (combo);
-
- /* This must succeed since we already have the grab */
- popup_grab_on_window (combo->popwin->window,
- gtk_get_current_event_time ());
-
- if (!gtk_widget_has_focus (combo->entry))
- gtk_widget_grab_focus (combo->entry);
-
- gtk_grab_add (combo->popwin);
-}
-
-static gboolean
-gtk_combo_popup_button_press (GtkWidget *button,
- GdkEventButton *event,
- GtkCombo *combo)
-{
- if (!gtk_widget_has_focus (combo->entry))
- gtk_widget_grab_focus (combo->entry);
-
- if (event->button != 1)
- return FALSE;
-
- if (!popup_grab_on_window (combo->button->window,
- gtk_get_current_event_time ()))
- return FALSE;
-
- combo->current_button = event->button;
-
- gtk_combo_popup_list (combo);
-
- /* This must succeed since we already have the grab */
- popup_grab_on_window (combo->popwin->window,
- gtk_get_current_event_time ());
-
- g_signal_emit_by_name (button, "depressed");
-
- gtk_grab_add (combo->popwin);
-
- return TRUE;
-}
-
-static gboolean
-gtk_combo_popup_button_leave (GtkWidget *button,
- GdkEventCrossing *event,
- GtkCombo *combo)
-{
- /* The idea here is that we want to keep the button down if the
- * popup is popped up.
- */
- return combo->current_button != 0;
-}
-
-static void
-gtk_combo_update_entry (GtkCombo * combo)
-{
- GtkList *list = GTK_LIST (combo->list);
- char *text;
-
- g_signal_handler_block (list, combo->list_change_id);
- if (list->selection)
- {
- text = gtk_combo_func (GTK_LIST_ITEM (list->selection->data));
- if (!text)
- text = "";
- gtk_entry_set_text (GTK_ENTRY (combo->entry), text);
- }
- g_signal_handler_unblock (list, combo->list_change_id);
-}
-
-static void
-gtk_combo_selection_changed (GtkList *list,
- GtkCombo *combo)
-{
- if (!gtk_widget_get_visible (combo->popwin))
- gtk_combo_update_entry (combo);
-}
-
-static void
-gtk_combo_update_list (GtkEntry * entry, GtkCombo * combo)
-{
- GtkList *list = GTK_LIST (combo->list);
- GList *slist = list->selection;
- GtkListItem *li;
-
- gtk_grab_remove (GTK_WIDGET (combo));
-
- g_signal_handler_block (entry, combo->entry_change_id);
- if (slist && slist->data)
- gtk_list_unselect_child (list, GTK_WIDGET (slist->data));
- li = gtk_combo_find (combo);
- if (li)
- gtk_list_select_child (list, GTK_WIDGET (li));
- g_signal_handler_unblock (entry, combo->entry_change_id);
-}
-
-static gint
-gtk_combo_button_press (GtkWidget * widget, GdkEvent * event, GtkCombo * combo)
-{
- GtkWidget *child;
-
- child = gtk_get_event_widget (event);
-
- /* We don't ask for button press events on the grab widget, so
- * if an event is reported directly to the grab widget, it must
- * be on a window outside the application (and thus we remove
- * the popup window). Otherwise, we check if the widget is a child
- * of the grab widget, and only remove the popup window if it
- * is not.
- */
- if (child != widget)
- {
- while (child)
- {
- if (child == widget)
- return FALSE;
- child = child->parent;
- }
- }
-
- gtk_combo_popdown_list (combo);
-
- return TRUE;
-}
-
-static gboolean
-is_within (GtkWidget *widget,
- GtkWidget *ancestor)
-{
- return widget == ancestor || gtk_widget_is_ancestor (widget, ancestor);
-}
-
-static void
-gtk_combo_button_event_after (GtkWidget *widget,
- GdkEvent *event,
- GtkCombo *combo)
-{
- GtkWidget *child;
-
- if (event->type != GDK_BUTTON_RELEASE)
- return;
-
- child = gtk_get_event_widget ((GdkEvent*) event);
-
- if ((combo->current_button != 0) && (event->button.button == 1))
- {
- /* This was the initial button press */
-
- combo->current_button = 0;
-
- /* Check to see if we released inside the button */
- if (child && is_within (child, combo->button))
- {
- gtk_grab_add (combo->popwin);
- gdk_pointer_grab (combo->popwin->window, TRUE,
- GDK_BUTTON_PRESS_MASK |
- GDK_BUTTON_RELEASE_MASK |
- GDK_POINTER_MOTION_MASK,
- NULL, NULL, GDK_CURRENT_TIME);
- return;
- }
- }
-
- if (is_within (child, combo->list))
- gtk_combo_update_entry (combo);
-
- gtk_combo_popdown_list (combo);
-
-}
-
-static void
-find_child_foreach (GtkWidget *widget,
- gpointer data)
-{
- GdkEventButton *event = data;
-
- if (!event->window)
- {
- if (event->x >= widget->allocation.x &&
- event->x < widget->allocation.x + widget->allocation.width &&
- event->y >= widget->allocation.y &&
- event->y < widget->allocation.y + widget->allocation.height)
- event->window = g_object_ref (widget->window);
- }
-}
-
-static void
-find_child_window (GtkContainer *container,
- GdkEventButton *event)
-{
- gtk_container_foreach (container, find_child_foreach, event);
-}
-
-static gint
-gtk_combo_list_enter (GtkWidget *widget,
- GdkEventCrossing *event,
- GtkCombo *combo)
-{
- GtkWidget *event_widget;
-
- event_widget = gtk_get_event_widget ((GdkEvent*) event);
-
- if ((event_widget == combo->list) &&
- (combo->current_button != 0) &&
- (!GTK_WIDGET_HAS_GRAB (combo->list)))
- {
- GdkEvent *tmp_event = gdk_event_new (GDK_BUTTON_PRESS);
- gint x, y;
- GdkModifierType mask;
-
- gtk_grab_remove (combo->popwin);
-
- /* Transfer the grab over to the list by synthesizing
- * a button press event
- */
- gdk_window_get_pointer (combo->list->window, &x, &y, &mask);
-
- tmp_event->button.send_event = TRUE;
- tmp_event->button.time = GDK_CURRENT_TIME; /* bad */
- tmp_event->button.x = x;
- tmp_event->button.y = y;
- /* We leave all the XInput fields unfilled here, in the expectation
- * that GtkList doesn't care.
- */
- tmp_event->button.button = combo->current_button;
- tmp_event->button.state = mask;
-
- find_child_window (GTK_CONTAINER (combo->list), &tmp_event->button);
- if (!tmp_event->button.window)
- {
- GtkWidget *child;
-
- if (GTK_LIST (combo->list)->children)
- child = GTK_LIST (combo->list)->children->data;
- else
- child = combo->list;
-
- tmp_event->button.window = g_object_ref (child->window);
- }
-
- gtk_widget_event (combo->list, tmp_event);
- gdk_event_free (tmp_event);
- }
-
- return FALSE;
-}
-
-static int
-gtk_combo_list_key_press (GtkWidget * widget, GdkEventKey * event, GtkCombo * combo)
-{
- guint state = event->state & gtk_accelerator_get_default_mod_mask ();
-
- if (event->keyval == GDK_Escape && state == 0)
- {
- if (GTK_WIDGET_HAS_GRAB (combo->list))
- gtk_list_end_drag_selection (GTK_LIST (combo->list));
-
- gtk_combo_popdown_list (combo);
-
- return TRUE;
- }
- return FALSE;
-}
-
-static void
-combo_event_box_realize (GtkWidget *widget)
-{
- GdkCursor *cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget),
- GDK_TOP_LEFT_ARROW);
- gdk_window_set_cursor (widget->window, cursor);
- gdk_cursor_unref (cursor);
-}
-
-static void
-gtk_combo_init (GtkCombo * combo)
-{
- GtkWidget *arrow;
- GtkWidget *frame;
- GtkWidget *event_box;
-
- combo->case_sensitive = FALSE;
- combo->value_in_list = FALSE;
- combo->ok_if_empty = TRUE;
- combo->use_arrows = TRUE;
- combo->use_arrows_always = TRUE;
- combo->entry = gtk_entry_new ();
- combo->button = gtk_button_new ();
- combo->current_button = 0;
- arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
- gtk_widget_show (arrow);
- gtk_container_add (GTK_CONTAINER (combo->button), arrow);
- gtk_box_pack_start (GTK_BOX (combo), combo->entry, TRUE, TRUE, 0);
- gtk_box_pack_end (GTK_BOX (combo), combo->button, FALSE, FALSE, 0);
- gtk_widget_set_can_focus (combo->button, FALSE);
- gtk_widget_show (combo->entry);
- gtk_widget_show (combo->button);
- combo->entry_change_id = g_signal_connect (combo->entry, "changed",
- G_CALLBACK (gtk_combo_update_list),
- combo);
- g_signal_connect_after (combo->entry, "key-press-event",
- G_CALLBACK (gtk_combo_entry_key_press), combo);
- g_signal_connect_after (combo->entry, "focus-out-event",
- G_CALLBACK (gtk_combo_entry_focus_out), combo);
- combo->activate_id = g_signal_connect (combo->entry, "activate",
- G_CALLBACK (gtk_combo_activate),
- combo);
- g_signal_connect (combo->button, "button-press-event",
- G_CALLBACK (gtk_combo_popup_button_press), combo);
- g_signal_connect (combo->button, "leave-notify-event",
- G_CALLBACK (gtk_combo_popup_button_leave), combo);
-
- combo->popwin = gtk_window_new (GTK_WINDOW_POPUP);
- gtk_widget_set_name (combo->popwin, "gtk-combo-popup-window");
- gtk_window_set_type_hint (GTK_WINDOW (combo->popwin), GDK_WINDOW_TYPE_HINT_COMBO);
- g_object_ref (combo->popwin);
- gtk_window_set_resizable (GTK_WINDOW (combo->popwin), FALSE);
-
- g_signal_connect (combo->popwin, "key-press-event",
- G_CALLBACK (gtk_combo_window_key_press), combo);
-
- gtk_widget_set_events (combo->popwin, GDK_KEY_PRESS_MASK);
-
- event_box = gtk_event_box_new ();
- gtk_container_add (GTK_CONTAINER (combo->popwin), event_box);
- g_signal_connect (event_box, "realize",
- G_CALLBACK (combo_event_box_realize), NULL);
- gtk_widget_show (event_box);
-
-
- frame = gtk_frame_new (NULL);
- gtk_container_add (GTK_CONTAINER (event_box), frame);
- gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
- gtk_widget_show (frame);
-
- combo->popup = gtk_scrolled_window_new (NULL, NULL);
- gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (combo->popup),
- GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
- gtk_widget_set_can_focus (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar, FALSE);
- gtk_widget_set_can_focus (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar, FALSE);
- gtk_container_add (GTK_CONTAINER (frame), combo->popup);
- gtk_widget_show (combo->popup);
-
- combo->list = gtk_list_new ();
- /* We'll use enter notify events to figure out when to transfer
- * the grab to the list
- */
- gtk_widget_set_events (combo->list, GDK_ENTER_NOTIFY_MASK);
-
- gtk_list_set_selection_mode (GTK_LIST(combo->list), GTK_SELECTION_BROWSE);
- gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (combo->popup), combo->list);
- gtk_container_set_focus_vadjustment (GTK_CONTAINER (combo->list),
- gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
- gtk_container_set_focus_hadjustment (GTK_CONTAINER (combo->list),
- gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
- gtk_widget_show (combo->list);
-
- combo->list_change_id = g_signal_connect (combo->list, "selection-changed",
- G_CALLBACK (gtk_combo_selection_changed), combo);
-
- g_signal_connect (combo->popwin, "key-press-event",
- G_CALLBACK (gtk_combo_list_key_press), combo);
- g_signal_connect (combo->popwin, "button-press-event",
- G_CALLBACK (gtk_combo_button_press), combo);
-
- g_signal_connect (combo->popwin, "event-after",
- G_CALLBACK (gtk_combo_button_event_after), combo);
- g_signal_connect (combo->list, "event-after",
- G_CALLBACK (gtk_combo_button_event_after), combo);
-
- g_signal_connect (combo->list, "enter-notify-event",
- G_CALLBACK (gtk_combo_list_enter), combo);
-}
-
-static void
-gtk_combo_realize (GtkWidget *widget)
-{
- GtkCombo *combo = GTK_COMBO (widget);
-
- gtk_window_set_screen (GTK_WINDOW (combo->popwin),
- gtk_widget_get_screen (widget));
-
- GTK_WIDGET_CLASS (gtk_combo_parent_class)->realize (widget);
-}
-
-static void
-gtk_combo_unrealize (GtkWidget *widget)
-{
- GtkCombo *combo = GTK_COMBO (widget);
-
- gtk_combo_popdown_list (combo);
- gtk_widget_unrealize (combo->popwin);
-
- GTK_WIDGET_CLASS (gtk_combo_parent_class)->unrealize (widget);
-}
-
-GtkWidget*
-gtk_combo_new (void)
-{
- return g_object_new (GTK_TYPE_COMBO, NULL);
-}
-
-void
-gtk_combo_set_value_in_list (GtkCombo * combo, gboolean val, gboolean ok_if_empty)
-{
- g_return_if_fail (GTK_IS_COMBO (combo));
- val = val != FALSE;
- ok_if_empty = ok_if_empty != FALSE;
-
- g_object_freeze_notify (G_OBJECT (combo));
- if (combo->value_in_list != val)
- {
- combo->value_in_list = val;
- g_object_notify (G_OBJECT (combo), "value-in-list");
- }
- if (combo->ok_if_empty != ok_if_empty)
- {
- combo->ok_if_empty = ok_if_empty;
- g_object_notify (G_OBJECT (combo), "allow-empty");
- }
- g_object_thaw_notify (G_OBJECT (combo));
-}
-
-void
-gtk_combo_set_case_sensitive (GtkCombo * combo, gboolean val)
-{
- g_return_if_fail (GTK_IS_COMBO (combo));
- val = val != FALSE;
-
- if (combo->case_sensitive != val)
- {
- combo->case_sensitive = val;
- g_object_notify (G_OBJECT (combo), "case-sensitive");
- }
-}
-
-void
-gtk_combo_set_use_arrows (GtkCombo * combo, gboolean val)
-{
- g_return_if_fail (GTK_IS_COMBO (combo));
- val = val != FALSE;
-
- if (combo->use_arrows != val)
- {
- combo->use_arrows = val;
- g_object_notify (G_OBJECT (combo), "enable-arrow-keys");
- }
-}
-
-void
-gtk_combo_set_use_arrows_always (GtkCombo * combo, gboolean val)
-{
- g_return_if_fail (GTK_IS_COMBO (combo));
- val = val != FALSE;
-
- if (combo->use_arrows_always != val)
- {
- g_object_freeze_notify (G_OBJECT (combo));
- combo->use_arrows_always = val;
- g_object_notify (G_OBJECT (combo), "enable-arrows-always");
-
- if (combo->use_arrows != TRUE)
- {
- combo->use_arrows = TRUE;
- g_object_notify (G_OBJECT (combo), "enable-arrow-keys");
- }
- g_object_thaw_notify (G_OBJECT (combo));
- }
-}
-
-void
-gtk_combo_set_popdown_strings (GtkCombo *combo,
- GList *strings)
-{
- GList *list;
- GtkWidget *li;
-
- g_return_if_fail (GTK_IS_COMBO (combo));
-
- gtk_combo_popdown_list (combo);
-
- gtk_list_clear_items (GTK_LIST (combo->list), 0, -1);
- list = strings;
- while (list)
- {
- li = gtk_list_item_new_with_label ((gchar *) list->data);
- gtk_widget_show (li);
- gtk_container_add (GTK_CONTAINER (combo->list), li);
- list = list->next;
- }
-}
-
-void
-gtk_combo_set_item_string (GtkCombo *combo,
- GtkItem *item,
- const gchar *item_value)
-{
- g_return_if_fail (GTK_IS_COMBO (combo));
- g_return_if_fail (item != NULL);
-
- g_object_set_data_full (G_OBJECT (item), I_(gtk_combo_string_key),
- g_strdup (item_value), g_free);
-}
-
-static void
-gtk_combo_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
-{
- GtkCombo *combo = GTK_COMBO (widget);
-
- GTK_WIDGET_CLASS (gtk_combo_parent_class)->size_allocate (widget, allocation);
-
- if (combo->entry->allocation.height > combo->entry->requisition.height)
- {
- GtkAllocation button_allocation;
-
- button_allocation = combo->button->allocation;
- button_allocation.height = combo->entry->requisition.height;
- button_allocation.y = combo->entry->allocation.y +
- (combo->entry->allocation.height - combo->entry->requisition.height)
- / 2;
- gtk_widget_size_allocate (combo->button, &button_allocation);
- }
-}
-
-void
-gtk_combo_disable_activate (GtkCombo *combo)
-{
- g_return_if_fail (GTK_IS_COMBO (combo));
-
- if ( combo->activate_id ) {
- g_signal_handler_disconnect (combo->entry, combo->activate_id);
- combo->activate_id = 0;
- }
-}
-
-static void
-gtk_combo_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- GtkCombo *combo = GTK_COMBO (object);
-
- switch (prop_id)
- {
- case PROP_ENABLE_ARROW_KEYS:
- gtk_combo_set_use_arrows (combo, g_value_get_boolean (value));
- break;
- case PROP_ENABLE_ARROWS_ALWAYS:
- gtk_combo_set_use_arrows_always (combo, g_value_get_boolean (value));
- break;
- case PROP_CASE_SENSITIVE:
- gtk_combo_set_case_sensitive (combo, g_value_get_boolean (value));
- break;
- case PROP_ALLOW_EMPTY:
- combo->ok_if_empty = g_value_get_boolean (value);
- break;
- case PROP_VALUE_IN_LIST:
- combo->value_in_list = g_value_get_boolean (value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-
-}
-
-static void
-gtk_combo_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- GtkCombo *combo = GTK_COMBO (object);
-
- switch (prop_id)
- {
- case PROP_ENABLE_ARROW_KEYS:
- g_value_set_boolean (value, combo->use_arrows);
- break;
- case PROP_ENABLE_ARROWS_ALWAYS:
- g_value_set_boolean (value, combo->use_arrows_always);
- break;
- case PROP_CASE_SENSITIVE:
- g_value_set_boolean (value, combo->case_sensitive);
- break;
- case PROP_ALLOW_EMPTY:
- g_value_set_boolean (value, combo->ok_if_empty);
- break;
- case PROP_VALUE_IN_LIST:
- g_value_set_boolean (value, combo->value_in_list);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-
-}
-
-#define __GTK_SMART_COMBO_C__
-#include "gtkaliasdef.c"
projects / gtk4.git / commitdiff