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e01189ca77d366db8dc056d112c64a68fc75d28c
gimp/app/widgets/gimpcontainerpopup.c
Michael Natterer fbd746f95a app: don't rely on gtk_container_remove() to always destroy the child 
Instead, either destroy the child instead of removing it, or remove
*and* destroy it in cases where the remove() api on the "parent"
doesn't match GTK+'s parent/child relation (like with all our dock
widgets). We can't rely on remove() to implicitly detstroy, because
there might be arbitrary other code holding references, such as
accessibility modules and whatnot. Most likely fixes unclear crashes
in accessibility code and other crashes we blamed GTK+ for.
2012-02-21 00:36:18 +01:00

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpcontainerpopup.c
* Copyright (C) 2003-2005 Michael Natterer <mitch@gimp.org>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpcontainer.h"
#include "core/gimpmarshal.h"
#include "core/gimpviewable.h"
#include "gimpcontainerbox.h"
#include "gimpcontainereditor.h"
#include "gimpcontainerpopup.h"
#include "gimpcontainertreeview.h"
#include "gimpcontainerview.h"
#include "gimpdialogfactory.h"
#include "gimpviewrenderer.h"
#include "gimpwindowstrategy.h"
#include "gimp-intl.h"
enum
{
CANCEL,
CONFIRM,
LAST_SIGNAL
};
static void gimp_container_popup_finalize (GObject *object);
static void gimp_container_popup_map (GtkWidget *widget);
static gboolean gimp_container_popup_button_press (GtkWidget *widget,
GdkEventButton *bevent);
static gboolean gimp_container_popup_key_press (GtkWidget *widget,
GdkEventKey *kevent);
static void gimp_container_popup_real_cancel (GimpContainerPopup *popup);
static void gimp_container_popup_real_confirm (GimpContainerPopup *popup);
static void gimp_container_popup_create_view (GimpContainerPopup *popup);
static void gimp_container_popup_smaller_clicked (GtkWidget *button,
GimpContainerPopup *popup);
static void gimp_container_popup_larger_clicked (GtkWidget *button,
GimpContainerPopup *popup);
static void gimp_container_popup_view_type_toggled(GtkWidget *button,
GimpContainerPopup *popup);
static void gimp_container_popup_dialog_clicked (GtkWidget *button,
GimpContainerPopup *popup);
G_DEFINE_TYPE (GimpContainerPopup, gimp_container_popup, GTK_TYPE_WINDOW)
#define parent_class gimp_container_popup_parent_class
static guint popup_signals[LAST_SIGNAL];
static void
gimp_container_popup_class_init (GimpContainerPopupClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GtkBindingSet *binding_set;
popup_signals[CANCEL] =
g_signal_new ("cancel",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GimpContainerPopupClass, cancel),
NULL, NULL,
gimp_marshal_VOID__VOID,
G_TYPE_NONE, 0);
popup_signals[CONFIRM] =
g_signal_new ("confirm",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GimpContainerPopupClass, confirm),
NULL, NULL,
gimp_marshal_VOID__VOID,
G_TYPE_NONE, 0);
object_class->finalize = gimp_container_popup_finalize;
widget_class->map = gimp_container_popup_map;
widget_class->button_press_event = gimp_container_popup_button_press;
widget_class->key_press_event = gimp_container_popup_key_press;
klass->cancel = gimp_container_popup_real_cancel;
klass->confirm = gimp_container_popup_real_confirm;
binding_set = gtk_binding_set_by_class (klass);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Escape, 0,
"cancel", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Return, 0,
"confirm", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Enter, 0,
"confirm", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_ISO_Enter, 0,
"confirm", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, 0,
"confirm", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, 0,
"confirm", 0);
}
static void
gimp_container_popup_init (GimpContainerPopup *popup)
{
popup->view_type = GIMP_VIEW_TYPE_LIST;
popup->default_view_size = GIMP_VIEW_SIZE_SMALL;
popup->view_size = GIMP_VIEW_SIZE_SMALL;
popup->view_border_width = 1;
popup->frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (popup->frame), GTK_SHADOW_OUT);
gtk_container_add (GTK_CONTAINER (popup), popup->frame);
gtk_widget_show (popup->frame);
}
static void
gimp_container_popup_finalize (GObject *object)
{
GimpContainerPopup *popup = GIMP_CONTAINER_POPUP (object);
if (popup->context)
{
g_object_unref (popup->context);
popup->context = NULL;
}
if (popup->dialog_identifier)
{
g_free (popup->dialog_identifier);
popup->dialog_identifier = NULL;
}
if (popup->dialog_stock_id)
{
g_free (popup->dialog_stock_id);
popup->dialog_stock_id = NULL;
}
if (popup->dialog_tooltip)
{
g_free (popup->dialog_tooltip);
popup->dialog_tooltip = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_container_popup_grab_notify (GtkWidget *widget,
gboolean was_grabbed)
{
if (was_grabbed)
return;
/* ignore grabs on one of our children, like the scrollbar */
if (gtk_widget_is_ancestor (gtk_grab_get_current (), widget))
return;
g_signal_emit (widget, popup_signals[CANCEL], 0);
}
static gboolean
gimp_container_popup_grab_broken_event (GtkWidget *widget,
GdkEventGrabBroken *event)
{
gimp_container_popup_grab_notify (widget, FALSE);
return FALSE;
}
static void
gimp_container_popup_map (GtkWidget *widget)
{
GTK_WIDGET_CLASS (parent_class)->map (widget);
/* grab with owner_events == TRUE so the popup's widgets can
* receive events. we filter away events outside this toplevel
* away in button_press()
*/
if (gdk_pointer_grab (gtk_widget_get_window (widget), TRUE,
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK,
NULL, NULL, GDK_CURRENT_TIME) == 0)
{
if (gdk_keyboard_grab (gtk_widget_get_window (widget), TRUE,
GDK_CURRENT_TIME) == 0)
{
gtk_grab_add (widget);
g_signal_connect (widget, "grab-notify",
G_CALLBACK (gimp_container_popup_grab_notify),
widget);
g_signal_connect (widget, "grab-broken-event",
G_CALLBACK (gimp_container_popup_grab_broken_event),
widget);
return;
}
else
{
gdk_display_pointer_ungrab (gtk_widget_get_display (widget),
GDK_CURRENT_TIME);
}
}
/* if we could not grab, destroy the popup instead of leaving it
* around uncloseable.
*/
g_signal_emit (widget, popup_signals[CANCEL], 0);
}
static gboolean
gimp_container_popup_button_press (GtkWidget *widget,
GdkEventButton *bevent)
{
GtkWidget *event_widget;
gboolean cancel = FALSE;
event_widget = gtk_get_event_widget ((GdkEvent *) bevent);
if (event_widget == widget)
{
GtkAllocation allocation;
gtk_widget_get_allocation (widget, &allocation);
/* the event was on the popup, which can either be really on the
* popup or outside gimp (owner_events == TRUE, see map())
*/
if (bevent->x < 0 ||
bevent->y < 0 ||
bevent->x > allocation.width ||
bevent->y > allocation.height)
{
/* the event was outsde gimp */
cancel = TRUE;
}
}
else if (gtk_widget_get_toplevel (event_widget) != widget)
{
/* the event was on a gimp widget, but not inside the popup */
cancel = TRUE;
}
if (cancel)
g_signal_emit (widget, popup_signals[CANCEL], 0);
return cancel;
}
static gboolean
gimp_container_popup_key_press (GtkWidget *widget,
GdkEventKey *kevent)
{
GtkBindingSet *binding_set;
binding_set =
gtk_binding_set_by_class (GIMP_CONTAINER_POPUP_GET_CLASS (widget));
/* invoke the popup's binding entries manually, because otherwise
* the focus widget (GtkTreeView e.g.) would consume it
*/
if (gtk_binding_set_activate (binding_set,
kevent->keyval,
kevent->state,
GTK_OBJECT (widget)))
{
return TRUE;
}
return GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, kevent);
}
static void
gimp_container_popup_real_cancel (GimpContainerPopup *popup)
{
GtkWidget *widget = GTK_WIDGET (popup);
if (gtk_grab_get_current () == widget)
gtk_grab_remove (widget);
gtk_widget_destroy (widget);
}
static void
gimp_container_popup_real_confirm (GimpContainerPopup *popup)
{
GtkWidget *widget = GTK_WIDGET (popup);
GimpObject *object;
object = gimp_context_get_by_type (popup->context,
gimp_container_get_children_type (popup->container));
gimp_context_set_by_type (popup->orig_context,
gimp_container_get_children_type (popup->container),
object);
if (gtk_grab_get_current () == widget)
gtk_grab_remove (widget);
gtk_widget_destroy (widget);
}
static void
gimp_container_popup_context_changed (GimpContext *context,
GimpViewable *viewable,
GimpContainerPopup *popup)
{
GdkEvent *current_event;
gboolean confirm = FALSE;
current_event = gtk_get_current_event ();
if (current_event)
{
if (((GdkEventAny *) current_event)->type == GDK_BUTTON_PRESS ||
((GdkEventAny *) current_event)->type == GDK_BUTTON_RELEASE)
confirm = TRUE;
gdk_event_free (current_event);
}
if (confirm)
g_signal_emit (popup, popup_signals[CONFIRM], 0);
}
GtkWidget *
gimp_container_popup_new (GimpContainer *container,
GimpContext *context,
GimpViewType view_type,
gint default_view_size,
gint view_size,
gint view_border_width,
GimpDialogFactory *dialog_factory,
const gchar *dialog_identifier,
const gchar *dialog_stock_id,
const gchar *dialog_tooltip)
{
GimpContainerPopup *popup;
g_return_val_if_fail (GIMP_IS_CONTAINER (container), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (default_view_size > 0 &&
default_view_size <= GIMP_VIEWABLE_MAX_POPUP_SIZE,
NULL);
g_return_val_if_fail (view_size > 0 &&
view_size <= GIMP_VIEWABLE_MAX_POPUP_SIZE, NULL);
g_return_val_if_fail (view_border_width >= 0 &&
view_border_width <= GIMP_VIEW_MAX_BORDER_WIDTH,
NULL);
g_return_val_if_fail (dialog_factory == NULL ||
GIMP_IS_DIALOG_FACTORY (dialog_factory), NULL);
if (dialog_factory)
{
g_return_val_if_fail (dialog_identifier != NULL, NULL);
g_return_val_if_fail (dialog_stock_id != NULL, NULL);
g_return_val_if_fail (dialog_tooltip != NULL, NULL);
}
popup = g_object_new (GIMP_TYPE_CONTAINER_POPUP,
"type", GTK_WINDOW_POPUP,
NULL);
gtk_window_set_resizable (GTK_WINDOW (popup), FALSE);
popup->container = container;
popup->orig_context = context;
popup->context = gimp_context_new (context->gimp, "popup", context);
popup->view_type = view_type;
popup->default_view_size = default_view_size;
popup->view_size = view_size;
popup->view_border_width = view_border_width;
g_signal_connect (popup->context,
gimp_context_type_to_signal_name (gimp_container_get_children_type (container)),
G_CALLBACK (gimp_container_popup_context_changed),
popup);
if (dialog_factory)
{
popup->dialog_factory = dialog_factory;
popup->dialog_identifier = g_strdup (dialog_identifier);
popup->dialog_stock_id = g_strdup (dialog_stock_id);
popup->dialog_tooltip = g_strdup (dialog_tooltip);
}
gimp_container_popup_create_view (popup);
return GTK_WIDGET (popup);
}
void
gimp_container_popup_show (GimpContainerPopup *popup,
GtkWidget *widget)
{
GdkScreen *screen;
GtkRequisition requisition;
GtkAllocation allocation;
GdkRectangle rect;
gint monitor;
gint orig_x;
gint orig_y;
gint x;
gint y;
g_return_if_fail (GIMP_IS_CONTAINER_POPUP (popup));
g_return_if_fail (GTK_IS_WIDGET (widget));
gtk_widget_size_request (GTK_WIDGET (popup), &requisition);
gtk_widget_get_allocation (widget, &allocation);
gdk_window_get_origin (gtk_widget_get_window (widget), &orig_x, &orig_y);
if (! gtk_widget_get_has_window (widget))
{
orig_x += allocation.x;
orig_y += allocation.y;
}
screen = gtk_widget_get_screen (widget);
monitor = gdk_screen_get_monitor_at_point (screen, orig_x, orig_y);
gdk_screen_get_monitor_geometry (screen, monitor, &rect);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
{
x = orig_x + allocation.width - requisition.width;
if (x < rect.x)
x -= allocation.width - requisition.width;
}
else
{
x = orig_x;
if (x + requisition.width > rect.x + rect.width)
x += allocation.width - requisition.width;
}
y = orig_y + allocation.height;
if (y + requisition.height > rect.y + rect.height)
y = orig_y - requisition.height;
gtk_window_move (GTK_WINDOW (popup), x, y);
gtk_widget_show (GTK_WIDGET (popup));
}
GimpViewType
gimp_container_popup_get_view_type (GimpContainerPopup *popup)
{
g_return_val_if_fail (GIMP_IS_CONTAINER_POPUP (popup), GIMP_VIEW_TYPE_LIST);
return popup->view_type;
}
void
gimp_container_popup_set_view_type (GimpContainerPopup *popup,
GimpViewType view_type)
{
g_return_if_fail (GIMP_IS_CONTAINER_POPUP (popup));
if (view_type != popup->view_type)
{
popup->view_type = view_type;
gtk_widget_destroy (GTK_WIDGET (popup->editor));
gimp_container_popup_create_view (popup);
}
}
gint
gimp_container_popup_get_view_size (GimpContainerPopup *popup)
{
g_return_val_if_fail (GIMP_IS_CONTAINER_POPUP (popup), GIMP_VIEW_SIZE_SMALL);
return popup->view_size;
}
void
gimp_container_popup_set_view_size (GimpContainerPopup *popup,
gint view_size)
{
GtkWidget *scrolled_win;
GtkWidget *viewport;
GtkAllocation allocation;
g_return_if_fail (GIMP_IS_CONTAINER_POPUP (popup));
scrolled_win = GIMP_CONTAINER_BOX (popup->editor->view)->scrolled_win;
viewport = gtk_bin_get_child (GTK_BIN (scrolled_win));
gtk_widget_get_allocation (viewport, &allocation);
view_size = CLAMP (view_size, GIMP_VIEW_SIZE_TINY,
MIN (GIMP_VIEW_SIZE_GIGANTIC,
allocation.width - 2 * popup->view_border_width));
if (view_size != popup->view_size)
{
popup->view_size = view_size;
gimp_container_view_set_view_size (popup->editor->view,
popup->view_size,
popup->view_border_width);
}
}
/* private functions */
static void
gimp_container_popup_create_view (GimpContainerPopup *popup)
{
GimpEditor *editor;
GtkWidget *button;
popup->editor = g_object_new (GIMP_TYPE_CONTAINER_EDITOR,
"view-type", popup->view_type,
"container", popup->container,
"context", popup->context,
"view-size", popup->view_size,
"view-border-width", popup->view_border_width,
NULL);
gimp_container_view_set_reorderable (GIMP_CONTAINER_VIEW (popup->editor->view),
FALSE);
if (popup->view_type == GIMP_VIEW_TYPE_LIST)
{
GtkWidget *search_entry;
search_entry = gtk_entry_new ();
gtk_box_pack_end (GTK_BOX (popup->editor->view), search_entry,
FALSE, FALSE, 0);
gtk_tree_view_set_search_entry (GTK_TREE_VIEW (GIMP_CONTAINER_TREE_VIEW (GIMP_CONTAINER_VIEW (popup->editor->view))->view),
GTK_ENTRY (search_entry));
gtk_widget_show (search_entry);
}
gimp_container_box_set_size_request (GIMP_CONTAINER_BOX (popup->editor->view),
6 * (popup->default_view_size +
2 * popup->view_border_width),
10 * (popup->default_view_size +
2 * popup->view_border_width));
if (GIMP_IS_EDITOR (popup->editor->view))
gimp_editor_set_show_name (GIMP_EDITOR (popup->editor->view), FALSE);
gtk_container_add (GTK_CONTAINER (popup->frame), GTK_WIDGET (popup->editor));
gtk_widget_show (GTK_WIDGET (popup->editor));
editor = GIMP_EDITOR (popup->editor->view);
gimp_editor_add_button (editor, GTK_STOCK_ZOOM_OUT,
_("Smaller Previews"), NULL,
G_CALLBACK (gimp_container_popup_smaller_clicked),
NULL,
popup);
gimp_editor_add_button (editor, GTK_STOCK_ZOOM_IN,
_("Larger Previews"), NULL,
G_CALLBACK (gimp_container_popup_larger_clicked),
NULL,
popup);
button = gimp_editor_add_stock_box (editor, GIMP_TYPE_VIEW_TYPE, "gimp",
G_CALLBACK (gimp_container_popup_view_type_toggled),
popup);
gimp_int_radio_group_set_active (GTK_RADIO_BUTTON (button), popup->view_type);
if (popup->dialog_factory)
gimp_editor_add_button (editor, popup->dialog_stock_id,
popup->dialog_tooltip, NULL,
G_CALLBACK (gimp_container_popup_dialog_clicked),
NULL,
popup);
gtk_widget_grab_focus (GTK_WIDGET (popup->editor));
}
static void
gimp_container_popup_smaller_clicked (GtkWidget *button,
GimpContainerPopup *popup)
{
gint view_size;
view_size = gimp_container_view_get_view_size (popup->editor->view, NULL);
gimp_container_popup_set_view_size (popup, view_size * 0.8);
}
static void
gimp_container_popup_larger_clicked (GtkWidget *button,
GimpContainerPopup *popup)
{
gint view_size;
view_size = gimp_container_view_get_view_size (popup->editor->view, NULL);
gimp_container_popup_set_view_size (popup, view_size * 1.2);
}
static void
gimp_container_popup_view_type_toggled (GtkWidget *button,
GimpContainerPopup *popup)
{
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button)))
{
GimpViewType view_type;
view_type = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (button),
"gimp-item-data"));
gimp_container_popup_set_view_type (popup, view_type);
}
}
static void
gimp_container_popup_dialog_clicked (GtkWidget *button,
GimpContainerPopup *popup)
{
gimp_window_strategy_show_dockable_dialog (GIMP_WINDOW_STRATEGY (gimp_get_window_strategy (popup->context->gimp)),
popup->context->gimp,
popup->dialog_factory,
gtk_widget_get_screen (button),
popup->dialog_identifier);
g_signal_emit (popup, popup_signals[CONFIRM], 0);
}
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