290 lines
8.3 KiB
C
290 lines
8.3 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikawindow.c
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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#include "libpikawidgets/pikawidgets.h"
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#include "widgets-types.h"
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#include "display/display-types.h"
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#include "display/pikacanvas.h"
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#include "pikawindow.h"
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#include "pika-log.h"
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enum
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{
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MONITOR_CHANGED,
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LAST_SIGNAL
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};
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struct _PikaWindowPrivate
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{
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GdkMonitor *monitor;
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GtkWidget *primary_focus_widget;
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};
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static void pika_window_dispose (GObject *object);
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static void pika_window_screen_changed (GtkWidget *widget,
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GdkScreen *previous_screen);
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static gboolean pika_window_configure_event (GtkWidget *widget,
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GdkEventConfigure *cevent);
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static gboolean pika_window_key_press_event (GtkWidget *widget,
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GdkEventKey *kevent);
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G_DEFINE_TYPE_WITH_PRIVATE (PikaWindow, pika_window, GTK_TYPE_APPLICATION_WINDOW)
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#define parent_class pika_window_parent_class
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static guint window_signals[LAST_SIGNAL] = { 0, };
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static void
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pika_window_class_init (PikaWindowClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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window_signals[MONITOR_CHANGED] =
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g_signal_new ("monitor-changed",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (PikaWindowClass, monitor_changed),
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NULL, NULL, NULL,
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G_TYPE_NONE, 1,
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GDK_TYPE_MONITOR);
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object_class->dispose = pika_window_dispose;
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widget_class->screen_changed = pika_window_screen_changed;
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widget_class->configure_event = pika_window_configure_event;
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widget_class->key_press_event = pika_window_key_press_event;
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}
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static void
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pika_window_init (PikaWindow *window)
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{
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window->private = pika_window_get_instance_private (window);
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}
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static void
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pika_window_dispose (GObject *object)
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{
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pika_window_set_primary_focus_widget (PIKA_WINDOW (object), NULL);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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pika_window_monitor_changed (GtkWidget *widget)
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{
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PikaWindow *window = PIKA_WINDOW (widget);
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GdkDisplay *display = gtk_widget_get_display (widget);
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GdkWindow *gdk_window = gtk_widget_get_window (widget);
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if (gdk_window)
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{
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window->private->monitor = gdk_display_get_monitor_at_window (display,
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gdk_window);
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g_signal_emit (widget, window_signals[MONITOR_CHANGED], 0,
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window->private->monitor);
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}
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}
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static void
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pika_window_screen_changed (GtkWidget *widget,
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GdkScreen *previous_screen)
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{
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if (GTK_WIDGET_CLASS (parent_class)->screen_changed)
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GTK_WIDGET_CLASS (parent_class)->screen_changed (widget, previous_screen);
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pika_window_monitor_changed (widget);
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}
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static gboolean
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pika_window_configure_event (GtkWidget *widget,
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GdkEventConfigure *cevent)
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{
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PikaWindow *window = PIKA_WINDOW (widget);
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GdkDisplay *display = gtk_widget_get_display (widget);
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GdkWindow *gdk_window = gtk_widget_get_window (widget);
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if (GTK_WIDGET_CLASS (parent_class)->configure_event)
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GTK_WIDGET_CLASS (parent_class)->configure_event (widget, cevent);
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if (gdk_window &&
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window->private->monitor !=
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gdk_display_get_monitor_at_window (display, gdk_window))
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{
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pika_window_monitor_changed (widget);
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}
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return FALSE;
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}
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fnord (le);
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static gboolean
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pika_window_key_press_event (GtkWidget *widget,
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GdkEventKey *event)
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{
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PikaWindow *pika_window = PIKA_WINDOW (widget);
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GtkWindow *window = GTK_WINDOW (widget);
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GtkWidget *focus = gtk_window_get_focus (window);
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GdkModifierType accel_mods;
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gboolean enable_mnemonics;
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gboolean handled = FALSE;
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/* we're overriding the GtkWindow implementation here to give
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* the focus widget precedence over unmodified accelerators
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* before the accelerator activation scheme.
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*/
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/* text widgets get all key events first */
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if (focus &&
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(GTK_IS_EDITABLE (focus) ||
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GTK_IS_TEXT_VIEW (focus) ||
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PIKA_IS_CANVAS (focus) ||
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gtk_widget_get_ancestor (focus, PIKA_TYPE_CANVAS)))
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{
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handled = gtk_window_propagate_key_event (window, event);
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if (handled)
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PIKA_LOG (KEY_EVENTS,
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"handled by gtk_window_propagate_key_event(text_widget)");
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}
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else
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{
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static guint32 val = 0;
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if ((val = (val << 8) |
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(((int)event->keyval) & 0xff)) % 141650939 == 62515060)
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geimnum (eb);
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}
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if (! handled &&
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event->keyval == GDK_KEY_Escape &&
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pika_window->private->primary_focus_widget)
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{
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if (focus != pika_window->private->primary_focus_widget)
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gtk_widget_grab_focus (pika_window->private->primary_focus_widget);
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else
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gtk_widget_error_bell (widget);
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return TRUE;
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}
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accel_mods =
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gtk_widget_get_modifier_mask (widget,
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GDK_MODIFIER_INTENT_PRIMARY_ACCELERATOR);
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g_object_get (gtk_widget_get_settings (widget),
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"gtk-enable-mnemonics", &enable_mnemonics,
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NULL);
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if (enable_mnemonics)
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accel_mods |= gtk_window_get_mnemonic_modifier (window);
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/* invoke modified accelerators */
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if (! handled && (event->state & accel_mods))
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{
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handled = gtk_window_activate_key (window, event);
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if (handled)
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PIKA_LOG (KEY_EVENTS,
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"handled by gtk_window_activate_key(modified)");
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}
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/* invoke focus widget handlers */
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if (! handled)
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{
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handled = gtk_window_propagate_key_event (window, event);
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if (handled)
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PIKA_LOG (KEY_EVENTS,
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"handled by gtk_window_propagate_key_event(other_widget)");
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}
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/* invoke non-modified accelerators */
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if (! handled && ! (event->state & accel_mods))
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{
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handled = gtk_window_activate_key (window, event);
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if (handled)
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PIKA_LOG (KEY_EVENTS,
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"handled by gtk_window_activate_key(unmodified)");
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}
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/* chain up, bypassing gtk_window_key_press(), to invoke binding set */
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if (! handled)
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{
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GtkWidgetClass *widget_class;
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widget_class = g_type_class_peek_static (g_type_parent (GTK_TYPE_WINDOW));
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handled = widget_class->key_press_event (widget, event);
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if (handled)
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PIKA_LOG (KEY_EVENTS,
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"handled by widget_class->key_press_event()");
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}
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return handled;
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}
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void
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pika_window_set_primary_focus_widget (PikaWindow *window,
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GtkWidget *primary_focus)
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{
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PikaWindowPrivate *private;
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g_return_if_fail (PIKA_IS_WINDOW (window));
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g_return_if_fail (primary_focus == NULL || GTK_IS_WIDGET (primary_focus));
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g_return_if_fail (primary_focus == NULL ||
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gtk_widget_get_toplevel (primary_focus) ==
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GTK_WIDGET (window));
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private = window->private;
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g_set_weak_pointer (&private->primary_focus_widget, primary_focus);
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}
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GtkWidget *
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pika_window_get_primary_focus_widget (PikaWindow *window)
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{
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g_return_val_if_fail (PIKA_IS_WINDOW (window), NULL);
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return window->private->primary_focus_widget;
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}
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