forked from AuroraMiddleware/gtk
2816 lines
81 KiB
C
2816 lines
81 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2001. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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/**
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* SECTION:gtkbutton
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* @Short_description: A widget that emits a signal when clicked on
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* @Title: GtkButton
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*
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* The #GtkButton widget is generally used to trigger a callback function that is
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* called when the button is pressed. The various signals and how to use them
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* are outlined below.
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*
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* The #GtkButton widget can hold any valid child widget. That is, it can hold
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* almost any other standard #GtkWidget. The most commonly used child is the
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* #GtkLabel.
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*
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* # CSS nodes
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*
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* GtkButton has a single CSS node with name button. The node will get the
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* style classes .image-button or .text-button, if the content is just an
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* image or label, respectively. It may also receive the .flat style class.
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*
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* Other style classes that are commonly used with GtkButton include
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* .suggested-action and .destructive-action.
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*
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* Button-like widgets like #GtkToggleButton, #GtkMenuButton, #GtkVolumeButton,
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* #GtkLockButton, #GtkColorButton, #GtkFontButton or #GtkFileChooserButton use
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* style classes such as .toggle, .popup, .scale, .lock, .color, .font, .file
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* to differentiate themselves from a plain GtkButton.
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*/
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#include "config.h"
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#include "gtkbutton.h"
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#include "gtkbuttonprivate.h"
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#include <string.h>
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#include "deprecated/gtkalignment.h"
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#include "gtklabel.h"
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#include "gtkmain.h"
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#include "gtkmarshalers.h"
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#include "gtkimage.h"
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#include "gtkbox.h"
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#include "deprecated/gtkstock.h"
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#include "deprecated/gtkactivatable.h"
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#include "gtksizerequest.h"
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#include "gtktypebuiltins.h"
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#include "gtkwidgetprivate.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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#include "a11y/gtkbuttonaccessible.h"
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#include "gtkapplicationprivate.h"
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#include "gtkactionhelper.h"
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static const GtkBorder default_default_border = { 0, 0, 0, 0 };
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static const GtkBorder default_default_outside_border = { 0, 0, 0, 0 };
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/* Time out before giving up on getting a key release when animating
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* the close button.
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*/
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#define ACTIVATE_TIMEOUT 250
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enum {
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PRESSED,
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RELEASED,
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CLICKED,
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ENTER,
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LEAVE,
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ACTIVATE,
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LAST_SIGNAL
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};
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enum {
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PROP_0,
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PROP_LABEL,
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PROP_IMAGE,
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PROP_RELIEF,
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PROP_USE_UNDERLINE,
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PROP_USE_STOCK,
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PROP_FOCUS_ON_CLICK,
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PROP_XALIGN,
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PROP_YALIGN,
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PROP_IMAGE_POSITION,
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PROP_ALWAYS_SHOW_IMAGE,
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/* actionable properties */
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PROP_ACTION_NAME,
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PROP_ACTION_TARGET,
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/* activatable properties */
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PROP_ACTIVATABLE_RELATED_ACTION,
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PROP_ACTIVATABLE_USE_ACTION_APPEARANCE,
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LAST_PROP = PROP_ACTION_NAME
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};
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static void gtk_button_destroy (GtkWidget *widget);
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static void gtk_button_dispose (GObject *object);
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static void gtk_button_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_button_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_button_screen_changed (GtkWidget *widget,
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GdkScreen *previous_screen);
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static void gtk_button_realize (GtkWidget * widget);
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static void gtk_button_unrealize (GtkWidget * widget);
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static void gtk_button_map (GtkWidget * widget);
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static void gtk_button_unmap (GtkWidget * widget);
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static void gtk_button_style_updated (GtkWidget * widget);
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static void gtk_button_size_allocate (GtkWidget * widget,
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GtkAllocation * allocation);
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static gint gtk_button_draw (GtkWidget * widget, cairo_t *cr);
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static gint gtk_button_grab_broken (GtkWidget * widget,
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GdkEventGrabBroken * event);
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static gint gtk_button_key_release (GtkWidget * widget, GdkEventKey * event);
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static gint gtk_button_enter_notify (GtkWidget * widget,
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GdkEventCrossing * event);
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static gint gtk_button_leave_notify (GtkWidget * widget,
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GdkEventCrossing * event);
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static void gtk_real_button_pressed (GtkButton * button);
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static void gtk_real_button_released (GtkButton * button);
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static void gtk_real_button_clicked (GtkButton * button);
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static void gtk_real_button_activate (GtkButton *button);
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static void gtk_button_update_state (GtkButton *button);
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static void gtk_button_enter_leave (GtkButton *button);
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static void gtk_button_add (GtkContainer *container,
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GtkWidget *widget);
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static GType gtk_button_child_type (GtkContainer *container);
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static void gtk_button_finish_activate (GtkButton *button,
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gboolean do_it);
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static void gtk_button_constructed (GObject *object);
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static void gtk_button_construct_child (GtkButton *button);
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static void gtk_button_state_changed (GtkWidget *widget,
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GtkStateType previous_state);
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static void gtk_button_grab_notify (GtkWidget *widget,
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gboolean was_grabbed);
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static void gtk_button_do_release (GtkButton *button,
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gboolean emit_clicked);
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static void gtk_button_actionable_iface_init (GtkActionableInterface *iface);
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static void gtk_button_activatable_interface_init(GtkActivatableIface *iface);
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static void gtk_button_update (GtkActivatable *activatable,
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GtkAction *action,
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const gchar *property_name);
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static void gtk_button_sync_action_properties (GtkActivatable *activatable,
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GtkAction *action);
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static void gtk_button_set_related_action (GtkButton *button,
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GtkAction *action);
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static void gtk_button_set_use_action_appearance (GtkButton *button,
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gboolean use_appearance);
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static void gtk_button_get_preferred_width (GtkWidget *widget,
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gint *minimum_size,
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gint *natural_size);
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static void gtk_button_get_preferred_height (GtkWidget *widget,
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gint *minimum_size,
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gint *natural_size);
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static void gtk_button_get_preferred_width_for_height (GtkWidget *widget,
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gint for_size,
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gint *minimum_size,
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gint *natural_size);
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static void gtk_button_get_preferred_height_for_width (GtkWidget *widget,
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gint for_size,
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gint *minimum_size,
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gint *natural_size);
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static void gtk_button_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
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gint width,
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gint *minimum_size,
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gint *natural_size,
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gint *minimum_baseline,
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gint *natural_baseline);
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static GParamSpec *props[LAST_PROP] = { NULL, };
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static guint button_signals[LAST_SIGNAL] = { 0 };
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
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G_DEFINE_TYPE_WITH_CODE (GtkButton, gtk_button, GTK_TYPE_BIN,
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G_ADD_PRIVATE (GtkButton)
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G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTIONABLE, gtk_button_actionable_iface_init)
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G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTIVATABLE,
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gtk_button_activatable_interface_init))
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G_GNUC_END_IGNORE_DEPRECATIONS;
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static void
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gtk_button_class_init (GtkButtonClass *klass)
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{
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GObjectClass *gobject_class;
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GtkWidgetClass *widget_class;
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GtkContainerClass *container_class;
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gobject_class = G_OBJECT_CLASS (klass);
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widget_class = (GtkWidgetClass*) klass;
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container_class = (GtkContainerClass*) klass;
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gobject_class->constructed = gtk_button_constructed;
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gobject_class->dispose = gtk_button_dispose;
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gobject_class->set_property = gtk_button_set_property;
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gobject_class->get_property = gtk_button_get_property;
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widget_class->get_preferred_width = gtk_button_get_preferred_width;
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widget_class->get_preferred_height = gtk_button_get_preferred_height;
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widget_class->get_preferred_width_for_height = gtk_button_get_preferred_width_for_height;
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widget_class->get_preferred_height_for_width = gtk_button_get_preferred_height_for_width;
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widget_class->get_preferred_height_and_baseline_for_width = gtk_button_get_preferred_height_and_baseline_for_width;
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widget_class->destroy = gtk_button_destroy;
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widget_class->screen_changed = gtk_button_screen_changed;
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widget_class->realize = gtk_button_realize;
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widget_class->unrealize = gtk_button_unrealize;
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widget_class->map = gtk_button_map;
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widget_class->unmap = gtk_button_unmap;
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widget_class->style_updated = gtk_button_style_updated;
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widget_class->size_allocate = gtk_button_size_allocate;
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widget_class->draw = gtk_button_draw;
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widget_class->grab_broken_event = gtk_button_grab_broken;
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widget_class->key_release_event = gtk_button_key_release;
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widget_class->enter_notify_event = gtk_button_enter_notify;
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widget_class->leave_notify_event = gtk_button_leave_notify;
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widget_class->state_changed = gtk_button_state_changed;
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widget_class->grab_notify = gtk_button_grab_notify;
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container_class->child_type = gtk_button_child_type;
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container_class->add = gtk_button_add;
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gtk_container_class_handle_border_width (container_class);
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klass->pressed = gtk_real_button_pressed;
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klass->released = gtk_real_button_released;
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klass->clicked = NULL;
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klass->enter = gtk_button_enter_leave;
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klass->leave = gtk_button_enter_leave;
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klass->activate = gtk_real_button_activate;
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props[PROP_LABEL] =
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g_param_spec_string ("label",
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P_("Label"),
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P_("Text of the label widget inside the button, if the button contains a label widget"),
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NULL,
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GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_EXPLICIT_NOTIFY);
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props[PROP_USE_UNDERLINE] =
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g_param_spec_boolean ("use-underline",
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P_("Use underline"),
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P_("If set, an underline in the text indicates the next character should be used for the mnemonic accelerator key"),
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FALSE,
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GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_EXPLICIT_NOTIFY);
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/**
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* GtkButton:use-stock:
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*
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* Deprecated: 3.10
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*/
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props[PROP_USE_STOCK] =
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g_param_spec_boolean ("use-stock",
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P_("Use stock"),
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P_("If set, the label is used to pick a stock item instead of being displayed"),
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FALSE,
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GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_EXPLICIT_NOTIFY|G_PARAM_DEPRECATED);
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props[PROP_FOCUS_ON_CLICK] =
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g_param_spec_boolean ("focus-on-click",
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P_("Focus on click"),
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P_("Whether the button grabs focus when it is clicked with the mouse"),
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TRUE,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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props[PROP_RELIEF] =
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g_param_spec_enum ("relief",
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P_("Border relief"),
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P_("The border relief style"),
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GTK_TYPE_RELIEF_STYLE,
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GTK_RELIEF_NORMAL,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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||
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/**
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* GtkButton:xalign:
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*
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* If the child of the button is a #GtkMisc or #GtkAlignment, this property
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* can be used to control its horizontal alignment. 0.0 is left aligned,
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* 1.0 is right aligned.
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*
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* Since: 2.4
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||
*
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* Deprecated: 3.14: Access the child widget directly if you need to control
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* its alignment.
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*/
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props[PROP_XALIGN] =
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g_param_spec_float ("xalign",
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P_("Horizontal alignment for child"),
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P_("Horizontal position of child in available space. 0.0 is left aligned, 1.0 is right aligned"),
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0.0, 1.0, 0.5,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY|G_PARAM_DEPRECATED);
|
||
|
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/**
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* GtkButton:yalign:
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*
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||
* If the child of the button is a #GtkMisc or #GtkAlignment, this property
|
||
* can be used to control its vertical alignment. 0.0 is top aligned,
|
||
* 1.0 is bottom aligned.
|
||
*
|
||
* Since: 2.4
|
||
*
|
||
* Deprecated: 3.14: Access the child widget directly if you need to control
|
||
* its alignment.
|
||
*/
|
||
props[PROP_YALIGN] =
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||
g_param_spec_float ("yalign",
|
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P_("Vertical alignment for child"),
|
||
P_("Vertical position of child in available space. 0.0 is top aligned, 1.0 is bottom aligned"),
|
||
0.0, 1.0, 0.5,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY|G_PARAM_DEPRECATED);
|
||
|
||
/**
|
||
* GtkButton:image:
|
||
*
|
||
* The child widget to appear next to the button text.
|
||
*
|
||
* Since: 2.6
|
||
*/
|
||
props[PROP_IMAGE] =
|
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g_param_spec_object ("image",
|
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P_("Image widget"),
|
||
P_("Child widget to appear next to the button text"),
|
||
GTK_TYPE_WIDGET,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
/**
|
||
* GtkButton:image-position:
|
||
*
|
||
* The position of the image relative to the text inside the button.
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
props[PROP_IMAGE_POSITION] =
|
||
g_param_spec_enum ("image-position",
|
||
P_("Image position"),
|
||
P_("The position of the image relative to the text"),
|
||
GTK_TYPE_POSITION_TYPE,
|
||
GTK_POS_LEFT,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
/**
|
||
* GtkButton:always-show-image:
|
||
*
|
||
* If %TRUE, the button will ignore the #GtkSettings:gtk-button-images
|
||
* setting and always show the image, if available.
|
||
*
|
||
* Use this property if the button would be useless or hard to use
|
||
* without the image.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
props[PROP_ALWAYS_SHOW_IMAGE] =
|
||
g_param_spec_boolean ("always-show-image",
|
||
P_("Always show image"),
|
||
P_("Whether the image will always be shown"),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
g_object_class_install_properties (gobject_class, LAST_PROP, props);
|
||
|
||
g_object_class_override_property (gobject_class, PROP_ACTION_NAME, "action-name");
|
||
g_object_class_override_property (gobject_class, PROP_ACTION_TARGET, "action-target");
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
g_object_class_override_property (gobject_class, PROP_ACTIVATABLE_RELATED_ACTION, "related-action");
|
||
g_object_class_override_property (gobject_class, PROP_ACTIVATABLE_USE_ACTION_APPEARANCE, "use-action-appearance");
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
|
||
/**
|
||
* GtkButton::pressed:
|
||
* @button: the object that received the signal
|
||
*
|
||
* Emitted when the button is pressed.
|
||
*
|
||
* Deprecated: 2.8: Use the #GtkWidget::button-press-event signal.
|
||
*/
|
||
button_signals[PRESSED] =
|
||
g_signal_new (I_("pressed"),
|
||
G_OBJECT_CLASS_TYPE (gobject_class),
|
||
G_SIGNAL_RUN_FIRST,
|
||
G_STRUCT_OFFSET (GtkButtonClass, pressed),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__VOID,
|
||
G_TYPE_NONE, 0);
|
||
|
||
/**
|
||
* GtkButton::released:
|
||
* @button: the object that received the signal
|
||
*
|
||
* Emitted when the button is released.
|
||
*
|
||
* Deprecated: 2.8: Use the #GtkWidget::button-release-event signal.
|
||
*/
|
||
button_signals[RELEASED] =
|
||
g_signal_new (I_("released"),
|
||
G_OBJECT_CLASS_TYPE (gobject_class),
|
||
G_SIGNAL_RUN_FIRST,
|
||
G_STRUCT_OFFSET (GtkButtonClass, released),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__VOID,
|
||
G_TYPE_NONE, 0);
|
||
|
||
/**
|
||
* GtkButton::clicked:
|
||
* @button: the object that received the signal
|
||
*
|
||
* Emitted when the button has been activated (pressed and released).
|
||
*/
|
||
button_signals[CLICKED] =
|
||
g_signal_new (I_("clicked"),
|
||
G_OBJECT_CLASS_TYPE (gobject_class),
|
||
G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
|
||
G_STRUCT_OFFSET (GtkButtonClass, clicked),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__VOID,
|
||
G_TYPE_NONE, 0);
|
||
|
||
/**
|
||
* GtkButton::enter:
|
||
* @button: the object that received the signal
|
||
*
|
||
* Emitted when the pointer enters the button.
|
||
*
|
||
* Deprecated: 2.8: Use the #GtkWidget::enter-notify-event signal.
|
||
*/
|
||
button_signals[ENTER] =
|
||
g_signal_new (I_("enter"),
|
||
G_OBJECT_CLASS_TYPE (gobject_class),
|
||
G_SIGNAL_RUN_FIRST,
|
||
G_STRUCT_OFFSET (GtkButtonClass, enter),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__VOID,
|
||
G_TYPE_NONE, 0);
|
||
|
||
/**
|
||
* GtkButton::leave:
|
||
* @button: the object that received the signal
|
||
*
|
||
* Emitted when the pointer leaves the button.
|
||
*
|
||
* Deprecated: 2.8: Use the #GtkWidget::leave-notify-event signal.
|
||
*/
|
||
button_signals[LEAVE] =
|
||
g_signal_new (I_("leave"),
|
||
G_OBJECT_CLASS_TYPE (gobject_class),
|
||
G_SIGNAL_RUN_FIRST,
|
||
G_STRUCT_OFFSET (GtkButtonClass, leave),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__VOID,
|
||
G_TYPE_NONE, 0);
|
||
|
||
/**
|
||
* GtkButton::activate:
|
||
* @widget: the object which received the signal.
|
||
*
|
||
* The ::activate signal on GtkButton is an action signal and
|
||
* emitting it causes the button to animate press then release.
|
||
* Applications should never connect to this signal, but use the
|
||
* #GtkButton::clicked signal.
|
||
*/
|
||
button_signals[ACTIVATE] =
|
||
g_signal_new (I_("activate"),
|
||
G_OBJECT_CLASS_TYPE (gobject_class),
|
||
G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
|
||
G_STRUCT_OFFSET (GtkButtonClass, activate),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__VOID,
|
||
G_TYPE_NONE, 0);
|
||
widget_class->activate_signal = button_signals[ACTIVATE];
|
||
|
||
/**
|
||
* GtkButton:default-border:
|
||
*
|
||
* The "default-border" style property defines the extra space to add
|
||
* around a button that can become the default widget of its window.
|
||
* For more information about default widgets, see gtk_widget_grab_default().
|
||
*
|
||
* Deprecated: 3.14: use CSS margins and padding instead.
|
||
*/
|
||
|
||
gtk_widget_class_install_style_property (widget_class,
|
||
g_param_spec_boxed ("default-border",
|
||
P_("Default Spacing"),
|
||
P_("Extra space to add for GTK_CAN_DEFAULT buttons"),
|
||
GTK_TYPE_BORDER,
|
||
GTK_PARAM_READABLE|G_PARAM_DEPRECATED));
|
||
|
||
/**
|
||
* GtkButton:default-outside-border:
|
||
*
|
||
* The "default-outside-border" style property defines the extra outside
|
||
* space to add around a button that can become the default widget of its
|
||
* window. Extra outside space is always drawn outside the button border.
|
||
* For more information about default widgets, see gtk_widget_grab_default().
|
||
*
|
||
* Deprecated: 3.14: use CSS margins and padding instead.
|
||
*/
|
||
gtk_widget_class_install_style_property (widget_class,
|
||
g_param_spec_boxed ("default-outside-border",
|
||
P_("Default Outside Spacing"),
|
||
P_("Extra space to add for GTK_CAN_DEFAULT buttons that is always drawn outside the border"),
|
||
GTK_TYPE_BORDER,
|
||
GTK_PARAM_READABLE|G_PARAM_DEPRECATED));
|
||
gtk_widget_class_install_style_property (widget_class,
|
||
g_param_spec_int ("child-displacement-x",
|
||
P_("Child X Displacement"),
|
||
P_("How far in the x direction to move the child when the button is depressed"),
|
||
G_MININT,
|
||
G_MAXINT,
|
||
0,
|
||
GTK_PARAM_READABLE|G_PARAM_DEPRECATED));
|
||
gtk_widget_class_install_style_property (widget_class,
|
||
g_param_spec_int ("child-displacement-y",
|
||
P_("Child Y Displacement"),
|
||
P_("How far in the y direction to move the child when the button is depressed"),
|
||
G_MININT,
|
||
G_MAXINT,
|
||
0,
|
||
GTK_PARAM_READABLE|G_PARAM_DEPRECATED));
|
||
|
||
/**
|
||
* GtkButton:displace-focus:
|
||
*
|
||
* Whether the child_displacement_x/child_displacement_y properties
|
||
* should also affect the focus rectangle.
|
||
*
|
||
* Since: 2.6
|
||
*/
|
||
gtk_widget_class_install_style_property (widget_class,
|
||
g_param_spec_boolean ("displace-focus",
|
||
P_("Displace focus"),
|
||
P_("Whether the child_displacement_x/_y properties should also affect the focus rectangle"),
|
||
FALSE,
|
||
GTK_PARAM_READABLE|G_PARAM_DEPRECATED));
|
||
|
||
/**
|
||
* GtkButton:inner-border:
|
||
*
|
||
* Sets the border between the button edges and child.
|
||
*
|
||
* Since: 2.10
|
||
*
|
||
* Deprecated: 3.4: Use the standard border and padding CSS properties;
|
||
* the value of this style property is ignored.
|
||
*/
|
||
gtk_widget_class_install_style_property (widget_class,
|
||
g_param_spec_boxed ("inner-border",
|
||
P_("Inner Border"),
|
||
P_("Border between button edges and child."),
|
||
GTK_TYPE_BORDER,
|
||
GTK_PARAM_READABLE | G_PARAM_DEPRECATED));
|
||
|
||
/**
|
||
* GtkButton::image-spacing:
|
||
*
|
||
* Spacing in pixels between the image and label.
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
gtk_widget_class_install_style_property (widget_class,
|
||
g_param_spec_int ("image-spacing",
|
||
P_("Image spacing"),
|
||
P_("Spacing in pixels between the image and label"),
|
||
0,
|
||
G_MAXINT,
|
||
2,
|
||
GTK_PARAM_READABLE));
|
||
|
||
gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_BUTTON_ACCESSIBLE);
|
||
gtk_widget_class_set_css_name (widget_class, "button");
|
||
}
|
||
|
||
static void
|
||
multipress_pressed_cb (GtkGestureMultiPress *gesture,
|
||
guint n_press,
|
||
gdouble x,
|
||
gdouble y,
|
||
GtkWidget *widget)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (priv->focus_on_click && !gtk_widget_has_focus (widget))
|
||
gtk_widget_grab_focus (widget);
|
||
|
||
priv->in_button = TRUE;
|
||
g_signal_emit (button, button_signals[PRESSED], 0);
|
||
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
|
||
}
|
||
|
||
static void
|
||
multipress_released_cb (GtkGestureMultiPress *gesture,
|
||
guint n_press,
|
||
gdouble x,
|
||
gdouble y,
|
||
GtkWidget *widget)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
GdkEventSequence *sequence;
|
||
|
||
g_signal_emit (button, button_signals[RELEASED], 0);
|
||
|
||
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
|
||
|
||
if (sequence)
|
||
{
|
||
priv->in_button = FALSE;
|
||
gtk_button_update_state (button);
|
||
}
|
||
}
|
||
|
||
static void
|
||
multipress_gesture_update_cb (GtkGesture *gesture,
|
||
GdkEventSequence *sequence,
|
||
GtkButton *button)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
GtkAllocation allocation;
|
||
gboolean in_button;
|
||
gdouble x, y;
|
||
|
||
if (sequence != gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture)))
|
||
return;
|
||
|
||
gtk_widget_get_allocation (GTK_WIDGET (button), &allocation);
|
||
gtk_gesture_get_point (gesture, sequence, &x, &y);
|
||
|
||
in_button = (x >= 0 && y >= 0 && x < allocation.width && y < allocation.height);
|
||
|
||
if (priv->in_button != in_button)
|
||
{
|
||
priv->in_button = in_button;
|
||
gtk_button_update_state (button);
|
||
}
|
||
}
|
||
|
||
static void
|
||
multipress_gesture_cancel_cb (GtkGesture *gesture,
|
||
GdkEventSequence *sequence,
|
||
GtkButton *button)
|
||
{
|
||
gtk_button_do_release (button, FALSE);
|
||
}
|
||
|
||
static void
|
||
gtk_button_init (GtkButton *button)
|
||
{
|
||
GtkButtonPrivate *priv;
|
||
|
||
button->priv = gtk_button_get_instance_private (button);
|
||
priv = button->priv;
|
||
|
||
gtk_widget_set_can_focus (GTK_WIDGET (button), TRUE);
|
||
gtk_widget_set_receives_default (GTK_WIDGET (button), TRUE);
|
||
gtk_widget_set_has_window (GTK_WIDGET (button), FALSE);
|
||
|
||
priv->label_text = NULL;
|
||
|
||
priv->constructed = FALSE;
|
||
priv->in_button = FALSE;
|
||
priv->button_down = FALSE;
|
||
priv->use_stock = FALSE;
|
||
priv->use_underline = FALSE;
|
||
priv->focus_on_click = TRUE;
|
||
|
||
priv->xalign = 0.5;
|
||
priv->yalign = 0.5;
|
||
priv->align_set = 0;
|
||
priv->image_is_stock = TRUE;
|
||
priv->image_position = GTK_POS_LEFT;
|
||
priv->use_action_appearance = TRUE;
|
||
|
||
priv->gesture = gtk_gesture_multi_press_new (GTK_WIDGET (button));
|
||
gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (priv->gesture), FALSE);
|
||
gtk_gesture_single_set_exclusive (GTK_GESTURE_SINGLE (priv->gesture), TRUE);
|
||
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (priv->gesture), GDK_BUTTON_PRIMARY);
|
||
g_signal_connect (priv->gesture, "pressed", G_CALLBACK (multipress_pressed_cb), button);
|
||
g_signal_connect (priv->gesture, "released", G_CALLBACK (multipress_released_cb), button);
|
||
g_signal_connect (priv->gesture, "update", G_CALLBACK (multipress_gesture_update_cb), button);
|
||
g_signal_connect (priv->gesture, "cancel", G_CALLBACK (multipress_gesture_cancel_cb), button);
|
||
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (priv->gesture), GTK_PHASE_BUBBLE);
|
||
}
|
||
|
||
static void
|
||
gtk_button_destroy (GtkWidget *widget)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
g_clear_pointer (&priv->label_text, g_free);
|
||
|
||
g_clear_object (&priv->gesture);
|
||
|
||
GTK_WIDGET_CLASS (gtk_button_parent_class)->destroy (widget);
|
||
}
|
||
|
||
static void
|
||
gtk_button_constructed (GObject *object)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (object);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
G_OBJECT_CLASS (gtk_button_parent_class)->constructed (object);
|
||
|
||
priv->constructed = TRUE;
|
||
|
||
if (priv->label_text != NULL || priv->image != NULL)
|
||
gtk_button_construct_child (button);
|
||
}
|
||
|
||
|
||
static GType
|
||
gtk_button_child_type (GtkContainer *container)
|
||
{
|
||
if (!gtk_bin_get_child (GTK_BIN (container)))
|
||
return GTK_TYPE_WIDGET;
|
||
else
|
||
return G_TYPE_NONE;
|
||
}
|
||
|
||
static void
|
||
maybe_set_alignment (GtkButton *button,
|
||
GtkWidget *widget)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (!priv->align_set)
|
||
return;
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
if (GTK_IS_LABEL (widget))
|
||
g_object_set (widget, "xalign", priv->xalign, "yalign", priv->yalign, NULL);
|
||
else if (GTK_IS_MISC (widget))
|
||
gtk_misc_set_alignment (GTK_MISC (widget), priv->xalign, priv->yalign);
|
||
else if (GTK_IS_ALIGNMENT (widget))
|
||
g_object_set (widget, "xalign", priv->xalign, "yalign", priv->yalign, NULL);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
}
|
||
|
||
static void
|
||
gtk_button_add (GtkContainer *container,
|
||
GtkWidget *widget)
|
||
{
|
||
maybe_set_alignment (GTK_BUTTON (container), widget);
|
||
|
||
GTK_CONTAINER_CLASS (gtk_button_parent_class)->add (container, widget);
|
||
}
|
||
|
||
static void
|
||
gtk_button_dispose (GObject *object)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (object);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
g_clear_object (&priv->action_helper);
|
||
|
||
if (priv->action)
|
||
{
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (button), NULL);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
priv->action = NULL;
|
||
}
|
||
G_OBJECT_CLASS (gtk_button_parent_class)->dispose (object);
|
||
}
|
||
|
||
static void
|
||
gtk_button_set_action_name (GtkActionable *actionable,
|
||
const gchar *action_name)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (actionable);
|
||
|
||
g_return_if_fail (button->priv->action == NULL);
|
||
|
||
if (!button->priv->action_helper)
|
||
button->priv->action_helper = gtk_action_helper_new (actionable);
|
||
|
||
g_signal_handlers_disconnect_by_func (button, gtk_real_button_clicked, NULL);
|
||
if (action_name)
|
||
g_signal_connect_after (button, "clicked", G_CALLBACK (gtk_real_button_clicked), NULL);
|
||
|
||
gtk_action_helper_set_action_name (button->priv->action_helper, action_name);
|
||
}
|
||
|
||
static void
|
||
gtk_button_set_action_target_value (GtkActionable *actionable,
|
||
GVariant *action_target)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (actionable);
|
||
|
||
if (!button->priv->action_helper)
|
||
button->priv->action_helper = gtk_action_helper_new (actionable);
|
||
|
||
gtk_action_helper_set_action_target_value (button->priv->action_helper, action_target);
|
||
}
|
||
|
||
static void
|
||
gtk_button_set_property (GObject *object,
|
||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (object);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_LABEL:
|
||
gtk_button_set_label (button, g_value_get_string (value));
|
||
break;
|
||
case PROP_IMAGE:
|
||
gtk_button_set_image (button, (GtkWidget *) g_value_get_object (value));
|
||
break;
|
||
case PROP_ALWAYS_SHOW_IMAGE:
|
||
gtk_button_set_always_show_image (button, g_value_get_boolean (value));
|
||
break;
|
||
case PROP_RELIEF:
|
||
gtk_button_set_relief (button, g_value_get_enum (value));
|
||
break;
|
||
case PROP_USE_UNDERLINE:
|
||
gtk_button_set_use_underline (button, g_value_get_boolean (value));
|
||
break;
|
||
case PROP_USE_STOCK:
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
gtk_button_set_use_stock (button, g_value_get_boolean (value));
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
break;
|
||
case PROP_FOCUS_ON_CLICK:
|
||
gtk_button_set_focus_on_click (button, g_value_get_boolean (value));
|
||
break;
|
||
case PROP_XALIGN:
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
gtk_button_set_alignment (button, g_value_get_float (value), priv->yalign);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
break;
|
||
case PROP_YALIGN:
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
gtk_button_set_alignment (button, priv->xalign, g_value_get_float (value));
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
break;
|
||
case PROP_IMAGE_POSITION:
|
||
gtk_button_set_image_position (button, g_value_get_enum (value));
|
||
break;
|
||
case PROP_ACTIVATABLE_RELATED_ACTION:
|
||
gtk_button_set_related_action (button, g_value_get_object (value));
|
||
break;
|
||
case PROP_ACTIVATABLE_USE_ACTION_APPEARANCE:
|
||
gtk_button_set_use_action_appearance (button, g_value_get_boolean (value));
|
||
break;
|
||
case PROP_ACTION_NAME:
|
||
gtk_button_set_action_name (GTK_ACTIONABLE (button), g_value_get_string (value));
|
||
break;
|
||
case PROP_ACTION_TARGET:
|
||
gtk_button_set_action_target_value (GTK_ACTIONABLE (button), g_value_get_variant (value));
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_button_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (object);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_LABEL:
|
||
g_value_set_string (value, priv->label_text);
|
||
break;
|
||
case PROP_IMAGE:
|
||
g_value_set_object (value, (GObject *)priv->image);
|
||
break;
|
||
case PROP_ALWAYS_SHOW_IMAGE:
|
||
g_value_set_boolean (value, gtk_button_get_always_show_image (button));
|
||
break;
|
||
case PROP_RELIEF:
|
||
g_value_set_enum (value, gtk_button_get_relief (button));
|
||
break;
|
||
case PROP_USE_UNDERLINE:
|
||
g_value_set_boolean (value, priv->use_underline);
|
||
break;
|
||
case PROP_USE_STOCK:
|
||
g_value_set_boolean (value, priv->use_stock);
|
||
break;
|
||
case PROP_FOCUS_ON_CLICK:
|
||
g_value_set_boolean (value, priv->focus_on_click);
|
||
break;
|
||
case PROP_XALIGN:
|
||
g_value_set_float (value, priv->xalign);
|
||
break;
|
||
case PROP_YALIGN:
|
||
g_value_set_float (value, priv->yalign);
|
||
break;
|
||
case PROP_IMAGE_POSITION:
|
||
g_value_set_enum (value, priv->image_position);
|
||
break;
|
||
case PROP_ACTIVATABLE_RELATED_ACTION:
|
||
g_value_set_object (value, priv->action);
|
||
break;
|
||
case PROP_ACTIVATABLE_USE_ACTION_APPEARANCE:
|
||
g_value_set_boolean (value, priv->use_action_appearance);
|
||
break;
|
||
case PROP_ACTION_NAME:
|
||
g_value_set_string (value, gtk_action_helper_get_action_name (priv->action_helper));
|
||
break;
|
||
case PROP_ACTION_TARGET:
|
||
g_value_set_variant (value, gtk_action_helper_get_action_target_value (priv->action_helper));
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static const gchar *
|
||
gtk_button_get_action_name (GtkActionable *actionable)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (actionable);
|
||
|
||
return gtk_action_helper_get_action_name (button->priv->action_helper);
|
||
}
|
||
|
||
static GVariant *
|
||
gtk_button_get_action_target_value (GtkActionable *actionable)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (actionable);
|
||
|
||
return gtk_action_helper_get_action_target_value (button->priv->action_helper);
|
||
}
|
||
|
||
static void
|
||
gtk_button_actionable_iface_init (GtkActionableInterface *iface)
|
||
{
|
||
iface->get_action_name = gtk_button_get_action_name;
|
||
iface->set_action_name = gtk_button_set_action_name;
|
||
iface->get_action_target_value = gtk_button_get_action_target_value;
|
||
iface->set_action_target_value = gtk_button_set_action_target_value;
|
||
}
|
||
|
||
static void
|
||
gtk_button_activatable_interface_init (GtkActivatableIface *iface)
|
||
{
|
||
iface->update = gtk_button_update;
|
||
iface->sync_action_properties = gtk_button_sync_action_properties;
|
||
}
|
||
|
||
static void
|
||
activatable_update_stock_id (GtkButton *button,
|
||
GtkAction *action)
|
||
{
|
||
gboolean use_stock;
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
use_stock = gtk_button_get_use_stock (button);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
|
||
if (!use_stock)
|
||
return;
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
gtk_button_set_label (button, gtk_action_get_stock_id (action));
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
}
|
||
|
||
static void
|
||
activatable_update_short_label (GtkButton *button,
|
||
GtkAction *action)
|
||
{
|
||
GtkWidget *child;
|
||
GtkWidget *image;
|
||
gboolean use_stock;
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
use_stock = gtk_button_get_use_stock (button);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
|
||
if (use_stock)
|
||
return;
|
||
|
||
image = gtk_button_get_image (button);
|
||
|
||
/* Dont touch custom child... */
|
||
child = gtk_bin_get_child (GTK_BIN (button));
|
||
if (GTK_IS_IMAGE (image) ||
|
||
child == NULL ||
|
||
GTK_IS_LABEL (child))
|
||
{
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
gtk_button_set_label (button, gtk_action_get_short_label (action));
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
gtk_button_set_use_underline (button, TRUE);
|
||
}
|
||
}
|
||
|
||
static void
|
||
activatable_update_icon_name (GtkButton *button,
|
||
GtkAction *action)
|
||
{
|
||
GtkWidget *image;
|
||
gboolean use_stock;
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
use_stock = gtk_button_get_use_stock (button);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
|
||
if (use_stock)
|
||
return;
|
||
|
||
image = gtk_button_get_image (button);
|
||
|
||
if (GTK_IS_IMAGE (image) &&
|
||
(gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_EMPTY ||
|
||
gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_ICON_NAME))
|
||
{
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
gtk_image_set_from_icon_name (GTK_IMAGE (image),
|
||
gtk_action_get_icon_name (action), GTK_ICON_SIZE_MENU);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
}
|
||
}
|
||
|
||
static void
|
||
activatable_update_gicon (GtkButton *button,
|
||
GtkAction *action)
|
||
{
|
||
GtkWidget *image = gtk_button_get_image (button);
|
||
GIcon *icon;
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
icon = gtk_action_get_gicon (action);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
|
||
if (GTK_IS_IMAGE (image) &&
|
||
(gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_EMPTY ||
|
||
gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_GICON))
|
||
gtk_image_set_from_gicon (GTK_IMAGE (image), icon, GTK_ICON_SIZE_BUTTON);
|
||
}
|
||
|
||
static void
|
||
gtk_button_update (GtkActivatable *activatable,
|
||
GtkAction *action,
|
||
const gchar *property_name)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (activatable);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (strcmp (property_name, "visible") == 0)
|
||
{
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
if (gtk_action_is_visible (action))
|
||
gtk_widget_show (GTK_WIDGET (activatable));
|
||
else
|
||
gtk_widget_hide (GTK_WIDGET (activatable));
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
}
|
||
else if (strcmp (property_name, "sensitive") == 0)
|
||
{
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
gtk_widget_set_sensitive (GTK_WIDGET (activatable), gtk_action_is_sensitive (action));
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
}
|
||
|
||
if (!priv->use_action_appearance)
|
||
return;
|
||
|
||
if (strcmp (property_name, "stock-id") == 0)
|
||
activatable_update_stock_id (GTK_BUTTON (activatable), action);
|
||
else if (strcmp (property_name, "gicon") == 0)
|
||
activatable_update_gicon (GTK_BUTTON (activatable), action);
|
||
else if (strcmp (property_name, "short-label") == 0)
|
||
activatable_update_short_label (GTK_BUTTON (activatable), action);
|
||
else if (strcmp (property_name, "icon-name") == 0)
|
||
activatable_update_icon_name (GTK_BUTTON (activatable), action);
|
||
}
|
||
|
||
static void
|
||
gtk_button_sync_action_properties (GtkActivatable *activatable,
|
||
GtkAction *action)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (activatable);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
gboolean always_show_image;
|
||
|
||
if (!action)
|
||
return;
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
|
||
if (gtk_action_is_visible (action))
|
||
gtk_widget_show (GTK_WIDGET (activatable));
|
||
else
|
||
gtk_widget_hide (GTK_WIDGET (activatable));
|
||
|
||
gtk_widget_set_sensitive (GTK_WIDGET (activatable), gtk_action_is_sensitive (action));
|
||
always_show_image = gtk_action_get_always_show_image (action);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
|
||
if (priv->use_action_appearance)
|
||
{
|
||
activatable_update_stock_id (GTK_BUTTON (activatable), action);
|
||
activatable_update_short_label (GTK_BUTTON (activatable), action);
|
||
activatable_update_gicon (GTK_BUTTON (activatable), action);
|
||
activatable_update_icon_name (GTK_BUTTON (activatable), action);
|
||
}
|
||
|
||
gtk_button_set_always_show_image (button, always_show_image);
|
||
}
|
||
|
||
static void
|
||
gtk_button_set_related_action (GtkButton *button,
|
||
GtkAction *action)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
g_return_if_fail (gtk_action_helper_get_action_name (button->priv->action_helper) == NULL);
|
||
|
||
if (priv->action == action)
|
||
return;
|
||
|
||
/* This should be a default handler, but for compatibility reasons
|
||
* we need to support derived classes that don't chain up their
|
||
* clicked handler.
|
||
*/
|
||
g_signal_handlers_disconnect_by_func (button, gtk_real_button_clicked, NULL);
|
||
if (action)
|
||
g_signal_connect_after (button, "clicked",
|
||
G_CALLBACK (gtk_real_button_clicked), NULL);
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (button), action);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
|
||
priv->action = action;
|
||
}
|
||
|
||
static void
|
||
gtk_button_set_use_action_appearance (GtkButton *button,
|
||
gboolean use_appearance)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (priv->use_action_appearance != use_appearance)
|
||
{
|
||
priv->use_action_appearance = use_appearance;
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
gtk_activatable_sync_action_properties (GTK_ACTIVATABLE (button), priv->action);
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_button_new:
|
||
*
|
||
* Creates a new #GtkButton widget. To add a child widget to the button,
|
||
* use gtk_container_add().
|
||
*
|
||
* Returns: The newly created #GtkButton widget.
|
||
*/
|
||
GtkWidget*
|
||
gtk_button_new (void)
|
||
{
|
||
return g_object_new (GTK_TYPE_BUTTON, NULL);
|
||
}
|
||
|
||
static gboolean
|
||
show_image (GtkButton *button)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
gboolean show;
|
||
|
||
if (priv->label_text && !priv->always_show_image)
|
||
{
|
||
GtkSettings *settings;
|
||
|
||
settings = gtk_widget_get_settings (GTK_WIDGET (button));
|
||
g_object_get (settings, "gtk-button-images", &show, NULL);
|
||
}
|
||
else
|
||
show = TRUE;
|
||
|
||
return show;
|
||
}
|
||
|
||
|
||
static void
|
||
gtk_button_construct_child (GtkButton *button)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
GtkStyleContext *context;
|
||
GtkStockItem item;
|
||
GtkWidget *child;
|
||
GtkWidget *label;
|
||
GtkWidget *box;
|
||
GtkWidget *align;
|
||
GtkWidget *image = NULL;
|
||
gchar *label_text = NULL;
|
||
gint image_spacing;
|
||
|
||
context = gtk_widget_get_style_context (GTK_WIDGET (button));
|
||
gtk_style_context_remove_class (context, "image-button");
|
||
gtk_style_context_remove_class (context, "text-button");
|
||
|
||
if (!priv->constructed)
|
||
return;
|
||
|
||
if (!priv->label_text && !priv->image)
|
||
return;
|
||
|
||
gtk_style_context_get_style (context,
|
||
"image-spacing", &image_spacing,
|
||
NULL);
|
||
|
||
if (priv->image && !priv->image_is_stock)
|
||
{
|
||
GtkWidget *parent;
|
||
|
||
image = g_object_ref (priv->image);
|
||
|
||
parent = gtk_widget_get_parent (image);
|
||
if (parent)
|
||
gtk_container_remove (GTK_CONTAINER (parent), image);
|
||
}
|
||
|
||
priv->image = NULL;
|
||
|
||
child = gtk_bin_get_child (GTK_BIN (button));
|
||
if (child)
|
||
gtk_container_remove (GTK_CONTAINER (button), child);
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
|
||
if (priv->use_stock &&
|
||
priv->label_text &&
|
||
gtk_stock_lookup (priv->label_text, &item))
|
||
{
|
||
if (!image)
|
||
image = g_object_ref (gtk_image_new_from_stock (priv->label_text, GTK_ICON_SIZE_BUTTON));
|
||
|
||
label_text = item.label;
|
||
}
|
||
else
|
||
label_text = priv->label_text;
|
||
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
|
||
if (image)
|
||
{
|
||
priv->image = image;
|
||
g_object_set (priv->image,
|
||
"visible", show_image (button),
|
||
"no-show-all", TRUE,
|
||
NULL);
|
||
|
||
if (priv->image_position == GTK_POS_LEFT ||
|
||
priv->image_position == GTK_POS_RIGHT)
|
||
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, image_spacing);
|
||
else
|
||
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, image_spacing);
|
||
|
||
gtk_widget_set_valign (image, GTK_ALIGN_BASELINE);
|
||
gtk_widget_set_valign (box, GTK_ALIGN_BASELINE);
|
||
|
||
if (priv->align_set)
|
||
align = gtk_alignment_new (priv->xalign, priv->yalign, 0.0, 0.0);
|
||
else
|
||
align = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
|
||
|
||
gtk_widget_set_valign (align, GTK_ALIGN_BASELINE);
|
||
|
||
if (priv->image_position == GTK_POS_LEFT ||
|
||
priv->image_position == GTK_POS_TOP)
|
||
gtk_box_pack_start (GTK_BOX (box), priv->image, FALSE, FALSE, 0);
|
||
else
|
||
gtk_box_pack_end (GTK_BOX (box), priv->image, FALSE, FALSE, 0);
|
||
|
||
if (label_text)
|
||
{
|
||
if (priv->use_underline || priv->use_stock)
|
||
{
|
||
label = gtk_label_new_with_mnemonic (label_text);
|
||
gtk_label_set_mnemonic_widget (GTK_LABEL (label),
|
||
GTK_WIDGET (button));
|
||
}
|
||
else
|
||
label = gtk_label_new (label_text);
|
||
|
||
gtk_widget_set_valign (label, GTK_ALIGN_BASELINE);
|
||
|
||
if (priv->image_position == GTK_POS_RIGHT ||
|
||
priv->image_position == GTK_POS_BOTTOM)
|
||
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
|
||
else
|
||
gtk_box_pack_end (GTK_BOX (box), label, FALSE, FALSE, 0);
|
||
}
|
||
else
|
||
{
|
||
gtk_style_context_add_class (context, "image-button");
|
||
}
|
||
|
||
gtk_container_add (GTK_CONTAINER (button), align);
|
||
gtk_container_add (GTK_CONTAINER (align), box);
|
||
gtk_widget_show_all (align);
|
||
|
||
g_object_unref (image);
|
||
|
||
return;
|
||
}
|
||
|
||
if (priv->use_underline || priv->use_stock)
|
||
{
|
||
label = gtk_label_new_with_mnemonic (priv->label_text);
|
||
gtk_label_set_mnemonic_widget (GTK_LABEL (label), GTK_WIDGET (button));
|
||
}
|
||
else
|
||
label = gtk_label_new (priv->label_text);
|
||
|
||
gtk_widget_set_valign (label, GTK_ALIGN_BASELINE);
|
||
|
||
maybe_set_alignment (button, label);
|
||
|
||
gtk_widget_show (label);
|
||
gtk_container_add (GTK_CONTAINER (button), label);
|
||
|
||
gtk_style_context_add_class (context, "text-button");
|
||
}
|
||
|
||
|
||
/**
|
||
* gtk_button_new_with_label:
|
||
* @label: The text you want the #GtkLabel to hold.
|
||
*
|
||
* Creates a #GtkButton widget with a #GtkLabel child containing the given
|
||
* text.
|
||
*
|
||
* Returns: The newly created #GtkButton widget.
|
||
*/
|
||
GtkWidget*
|
||
gtk_button_new_with_label (const gchar *label)
|
||
{
|
||
return g_object_new (GTK_TYPE_BUTTON, "label", label, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_new_from_icon_name:
|
||
* @icon_name: an icon name
|
||
* @size: (type int): an icon size
|
||
*
|
||
* Creates a new button containing an icon from the current icon theme.
|
||
*
|
||
* If the icon name isn’t known, a “broken image” icon will be
|
||
* displayed instead. If the current icon theme is changed, the icon
|
||
* will be updated appropriately.
|
||
*
|
||
* This function is a convenience wrapper around gtk_button_new() and
|
||
* gtk_button_set_image().
|
||
*
|
||
* Returns: a new #GtkButton displaying the themed icon
|
||
*
|
||
* Since: 3.10
|
||
**/
|
||
GtkWidget*
|
||
gtk_button_new_from_icon_name (const gchar *icon_name,
|
||
GtkIconSize size)
|
||
{
|
||
GtkWidget *button;
|
||
GtkWidget *image;
|
||
|
||
image = gtk_image_new_from_icon_name (icon_name, size);
|
||
button = g_object_new (GTK_TYPE_BUTTON,
|
||
"image", image,
|
||
NULL);
|
||
|
||
return button;
|
||
}
|
||
|
||
/**
|
||
* gtk_button_new_from_stock:
|
||
* @stock_id: the name of the stock item
|
||
*
|
||
* Creates a new #GtkButton containing the image and text from a stock item.
|
||
* Some stock ids have preprocessor macros like #GTK_STOCK_OK and
|
||
* #GTK_STOCK_APPLY.
|
||
*
|
||
* If @stock_id is unknown, then it will be treated as a mnemonic
|
||
* label (as for gtk_button_new_with_mnemonic()).
|
||
*
|
||
* Returns: a new #GtkButton
|
||
*
|
||
* Deprecated: 3.10: Use gtk_button_new_with_label() instead.
|
||
**/
|
||
GtkWidget*
|
||
gtk_button_new_from_stock (const gchar *stock_id)
|
||
{
|
||
return g_object_new (GTK_TYPE_BUTTON,
|
||
"label", stock_id,
|
||
"use-stock", TRUE,
|
||
"use-underline", TRUE,
|
||
NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_new_with_mnemonic:
|
||
* @label: The text of the button, with an underscore in front of the
|
||
* mnemonic character
|
||
*
|
||
* Creates a new #GtkButton containing a label.
|
||
* If characters in @label are preceded by an underscore, they are underlined.
|
||
* If you need a literal underscore character in a label, use “__” (two
|
||
* underscores). The first underlined character represents a keyboard
|
||
* accelerator called a mnemonic.
|
||
* Pressing Alt and that key activates the button.
|
||
*
|
||
* Returns: a new #GtkButton
|
||
**/
|
||
GtkWidget*
|
||
gtk_button_new_with_mnemonic (const gchar *label)
|
||
{
|
||
return g_object_new (GTK_TYPE_BUTTON, "label", label, "use-underline", TRUE, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_pressed:
|
||
* @button: The #GtkButton you want to send the signal to.
|
||
*
|
||
* Emits a #GtkButton::pressed signal to the given #GtkButton.
|
||
*
|
||
* Deprecated: 2.20: Use the #GtkWidget::button-press-event signal.
|
||
*/
|
||
void
|
||
gtk_button_pressed (GtkButton *button)
|
||
{
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
g_signal_emit (button, button_signals[PRESSED], 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_released:
|
||
* @button: The #GtkButton you want to send the signal to.
|
||
*
|
||
* Emits a #GtkButton::released signal to the given #GtkButton.
|
||
*
|
||
* Deprecated: 2.20: Use the #GtkWidget::button-release-event signal.
|
||
*/
|
||
void
|
||
gtk_button_released (GtkButton *button)
|
||
{
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
g_signal_emit (button, button_signals[RELEASED], 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_clicked:
|
||
* @button: The #GtkButton you want to send the signal to.
|
||
*
|
||
* Emits a #GtkButton::clicked signal to the given #GtkButton.
|
||
*/
|
||
void
|
||
gtk_button_clicked (GtkButton *button)
|
||
{
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
g_signal_emit (button, button_signals[CLICKED], 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_enter:
|
||
* @button: The #GtkButton you want to send the signal to.
|
||
*
|
||
* Emits a #GtkButton::enter signal to the given #GtkButton.
|
||
*
|
||
* Deprecated: 2.20: Use the #GtkWidget::enter-notify-event signal.
|
||
*/
|
||
void
|
||
gtk_button_enter (GtkButton *button)
|
||
{
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
g_signal_emit (button, button_signals[ENTER], 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_leave:
|
||
* @button: The #GtkButton you want to send the signal to.
|
||
*
|
||
* Emits a #GtkButton::leave signal to the given #GtkButton.
|
||
*
|
||
* Deprecated: 2.20: Use the #GtkWidget::leave-notify-event signal.
|
||
*/
|
||
void
|
||
gtk_button_leave (GtkButton *button)
|
||
{
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
g_signal_emit (button, button_signals[LEAVE], 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_set_relief:
|
||
* @button: The #GtkButton you want to set relief styles of
|
||
* @relief: The GtkReliefStyle as described above
|
||
*
|
||
* Sets the relief style of the edges of the given #GtkButton widget.
|
||
* Two styles exist, %GTK_RELIEF_NORMAL and %GTK_RELIEF_NONE.
|
||
* The default style is, as one can guess, %GTK_RELIEF_NORMAL.
|
||
* The deprecated value %GTK_RELIEF_HALF behaves the same as
|
||
* %GTK_RELIEF_NORMAL.
|
||
*/
|
||
void
|
||
gtk_button_set_relief (GtkButton *button,
|
||
GtkReliefStyle relief)
|
||
{
|
||
GtkStyleContext *context;
|
||
GtkReliefStyle old_relief;
|
||
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
old_relief = gtk_button_get_relief (button);
|
||
if (old_relief != relief)
|
||
{
|
||
context = gtk_widget_get_style_context (GTK_WIDGET (button));
|
||
if (relief == GTK_RELIEF_NONE)
|
||
gtk_style_context_add_class (context, GTK_STYLE_CLASS_FLAT);
|
||
else
|
||
gtk_style_context_remove_class (context, GTK_STYLE_CLASS_FLAT);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (button), props[PROP_RELIEF]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_button_get_relief:
|
||
* @button: The #GtkButton you want the #GtkReliefStyle from.
|
||
*
|
||
* Returns the current relief style of the given #GtkButton.
|
||
*
|
||
* Returns: The current #GtkReliefStyle
|
||
*/
|
||
GtkReliefStyle
|
||
gtk_button_get_relief (GtkButton *button)
|
||
{
|
||
GtkStyleContext *context;
|
||
|
||
g_return_val_if_fail (GTK_IS_BUTTON (button), GTK_RELIEF_NORMAL);
|
||
|
||
context = gtk_widget_get_style_context (GTK_WIDGET (button));
|
||
if (gtk_style_context_has_class (context, GTK_STYLE_CLASS_FLAT))
|
||
return GTK_RELIEF_NONE;
|
||
else
|
||
return GTK_RELIEF_NORMAL;
|
||
}
|
||
|
||
static void
|
||
gtk_button_realize (GtkWidget *widget)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
GtkAllocation allocation;
|
||
GdkWindow *window;
|
||
GdkWindowAttr attributes;
|
||
gint attributes_mask;
|
||
|
||
gtk_widget_get_allocation (widget, &allocation);
|
||
|
||
gtk_widget_set_realized (widget, TRUE);
|
||
|
||
attributes.window_type = GDK_WINDOW_CHILD;
|
||
attributes.x = allocation.x;
|
||
attributes.y = allocation.y;
|
||
attributes.width = allocation.width;
|
||
attributes.height = allocation.height;
|
||
attributes.wclass = GDK_INPUT_ONLY;
|
||
attributes.event_mask = gtk_widget_get_events (widget);
|
||
attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
|
||
GDK_BUTTON_RELEASE_MASK |
|
||
GDK_TOUCH_MASK |
|
||
GDK_ENTER_NOTIFY_MASK |
|
||
GDK_LEAVE_NOTIFY_MASK);
|
||
|
||
attributes_mask = GDK_WA_X | GDK_WA_Y;
|
||
|
||
window = gtk_widget_get_parent_window (widget);
|
||
gtk_widget_set_window (widget, window);
|
||
g_object_ref (window);
|
||
|
||
priv->event_window = gdk_window_new (window,
|
||
&attributes, attributes_mask);
|
||
gtk_widget_register_window (widget, priv->event_window);
|
||
}
|
||
|
||
static void
|
||
gtk_button_unrealize (GtkWidget *widget)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (priv->activate_timeout)
|
||
gtk_button_finish_activate (button, FALSE);
|
||
|
||
if (priv->event_window)
|
||
{
|
||
gtk_widget_unregister_window (widget, priv->event_window);
|
||
gdk_window_destroy (priv->event_window);
|
||
priv->event_window = NULL;
|
||
}
|
||
|
||
GTK_WIDGET_CLASS (gtk_button_parent_class)->unrealize (widget);
|
||
}
|
||
|
||
static void
|
||
gtk_button_map (GtkWidget *widget)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
GTK_WIDGET_CLASS (gtk_button_parent_class)->map (widget);
|
||
|
||
if (priv->event_window)
|
||
gdk_window_show (priv->event_window);
|
||
}
|
||
|
||
static void
|
||
gtk_button_unmap (GtkWidget *widget)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (priv->event_window)
|
||
{
|
||
gdk_window_hide (priv->event_window);
|
||
priv->in_button = FALSE;
|
||
}
|
||
|
||
GTK_WIDGET_CLASS (gtk_button_parent_class)->unmap (widget);
|
||
}
|
||
|
||
static void
|
||
gtk_button_update_image_spacing (GtkButton *button,
|
||
GtkStyleContext *context)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
GtkWidget *child;
|
||
gint spacing;
|
||
|
||
/* Keep in sync with gtk_button_construct_child,
|
||
* we only want to update the spacing if the box
|
||
* was constructed there.
|
||
*/
|
||
if (!priv->constructed || !priv->image)
|
||
return;
|
||
|
||
child = gtk_bin_get_child (GTK_BIN (button));
|
||
if (GTK_IS_ALIGNMENT (child))
|
||
{
|
||
child = gtk_bin_get_child (GTK_BIN (child));
|
||
if (GTK_IS_BOX (child))
|
||
{
|
||
gtk_style_context_get_style (context,
|
||
"image-spacing", &spacing,
|
||
NULL);
|
||
|
||
gtk_box_set_spacing (GTK_BOX (child), spacing);
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_button_style_updated (GtkWidget *widget)
|
||
{
|
||
GtkStyleContext *context;
|
||
|
||
GTK_WIDGET_CLASS (gtk_button_parent_class)->style_updated (widget);
|
||
|
||
context = gtk_widget_get_style_context (widget);
|
||
|
||
gtk_button_update_image_spacing (GTK_BUTTON (widget), context);
|
||
}
|
||
|
||
static void
|
||
gtk_button_get_props (GtkButton *button,
|
||
GtkBorder *default_border,
|
||
GtkBorder *default_outside_border,
|
||
GtkBorder *padding,
|
||
GtkBorder *border)
|
||
{
|
||
GtkStyleContext *context;
|
||
GtkStateFlags state;
|
||
GtkBorder *tmp_border;
|
||
|
||
context = gtk_widget_get_style_context (GTK_WIDGET (button));
|
||
state = gtk_style_context_get_state (context);
|
||
|
||
if (default_border)
|
||
{
|
||
gtk_style_context_get_style (context,
|
||
"default-border", &tmp_border,
|
||
NULL);
|
||
|
||
if (tmp_border)
|
||
{
|
||
*default_border = *tmp_border;
|
||
gtk_border_free (tmp_border);
|
||
}
|
||
else
|
||
*default_border = default_default_border;
|
||
}
|
||
|
||
if (default_outside_border)
|
||
{
|
||
gtk_style_context_get_style (context,
|
||
"default-outside-border", &tmp_border,
|
||
NULL);
|
||
|
||
if (tmp_border)
|
||
{
|
||
*default_outside_border = *tmp_border;
|
||
gtk_border_free (tmp_border);
|
||
}
|
||
else
|
||
*default_outside_border = default_default_outside_border;
|
||
}
|
||
|
||
if (padding)
|
||
gtk_style_context_get_padding (context, state, padding);
|
||
|
||
if (border)
|
||
gtk_style_context_get_border (context, state, border);
|
||
}
|
||
|
||
/* Computes the size of the border around the button's child
|
||
* including all CSS and style properties so it can be used
|
||
* during size allocation and size request phases. */
|
||
static void
|
||
gtk_button_get_full_border (GtkButton *button,
|
||
GtkBorder *full_border)
|
||
{
|
||
GtkBorder default_border, padding, border;
|
||
|
||
gtk_button_get_props (button, &default_border, NULL,
|
||
&padding, &border);
|
||
|
||
full_border->left = padding.left + border.left;
|
||
full_border->right = padding.right + border.right;
|
||
full_border->top = padding.top + border.top;
|
||
full_border->bottom = padding.bottom + border.bottom;
|
||
|
||
if (gtk_widget_get_can_default (GTK_WIDGET (button)))
|
||
{
|
||
full_border->left += default_border.left;
|
||
full_border->right += default_border.right;
|
||
full_border->top += default_border.top;
|
||
full_border->bottom += default_border.bottom;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_button_size_allocate (GtkWidget *widget,
|
||
GtkAllocation *allocation)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
GtkWidget *child;
|
||
|
||
gtk_widget_set_allocation (widget, allocation);
|
||
|
||
if (gtk_widget_get_realized (widget))
|
||
gdk_window_move_resize (priv->event_window,
|
||
allocation->x,
|
||
allocation->y,
|
||
allocation->width,
|
||
allocation->height);
|
||
|
||
child = gtk_bin_get_child (GTK_BIN (button));
|
||
if (child && gtk_widget_get_visible (child))
|
||
{
|
||
GtkAllocation child_allocation;
|
||
GtkBorder border;
|
||
gint baseline;
|
||
|
||
gtk_button_get_full_border (button, &border);
|
||
|
||
child_allocation.x = allocation->x + border.left;
|
||
child_allocation.y = allocation->y + border.top;
|
||
child_allocation.width = allocation->width - border.left - border.right;
|
||
child_allocation.height = allocation->height - border.top - border.bottom;
|
||
|
||
baseline = gtk_widget_get_allocated_baseline (widget);
|
||
if (baseline != -1)
|
||
baseline -= border.top;
|
||
|
||
child_allocation.width = MAX (1, child_allocation.width);
|
||
child_allocation.height = MAX (1, child_allocation.height);
|
||
|
||
gtk_widget_size_allocate_with_baseline (child, &child_allocation, baseline);
|
||
}
|
||
|
||
_gtk_widget_set_simple_clip (widget, NULL);
|
||
}
|
||
|
||
static gboolean
|
||
gtk_button_draw (GtkWidget *widget,
|
||
cairo_t *cr)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
gint x, y;
|
||
gint width, height;
|
||
GtkBorder default_border;
|
||
GtkBorder default_outside_border;
|
||
GtkStyleContext *context;
|
||
GtkStateFlags state;
|
||
|
||
context = gtk_widget_get_style_context (widget);
|
||
state = gtk_style_context_get_state (context);
|
||
|
||
gtk_button_get_props (button, &default_border, &default_outside_border, NULL, NULL);
|
||
|
||
x = 0;
|
||
y = 0;
|
||
width = gtk_widget_get_allocated_width (widget);
|
||
height = gtk_widget_get_allocated_height (widget);
|
||
|
||
if (gtk_widget_has_default (widget) &&
|
||
gtk_button_get_relief (button) == GTK_RELIEF_NORMAL)
|
||
{
|
||
x += default_border.left;
|
||
y += default_border.top;
|
||
width -= default_border.left + default_border.right;
|
||
height -= default_border.top + default_border.bottom;
|
||
}
|
||
else if (gtk_widget_get_can_default (widget))
|
||
{
|
||
x += default_outside_border.left;
|
||
y += default_outside_border.top;
|
||
width -= default_outside_border.left + default_outside_border.right;
|
||
height -= default_outside_border.top + default_outside_border.bottom;
|
||
}
|
||
|
||
gtk_render_background (context, cr, x, y, width, height);
|
||
gtk_render_frame (context, cr, x, y, width, height);
|
||
|
||
if (gtk_widget_has_visible_focus (widget))
|
||
{
|
||
GtkBorder border;
|
||
|
||
gtk_style_context_get_border (context, state, &border);
|
||
|
||
x += border.left;
|
||
y += border.top;
|
||
width -= border.left + border.right;
|
||
height -= border.top + border.bottom;
|
||
|
||
gtk_render_focus (context, cr, x, y, width, height);
|
||
}
|
||
|
||
GTK_WIDGET_CLASS (gtk_button_parent_class)->draw (widget, cr);
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
gtk_button_do_release (GtkButton *button,
|
||
gboolean emit_clicked)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (priv->button_down)
|
||
{
|
||
priv->button_down = FALSE;
|
||
|
||
if (priv->activate_timeout)
|
||
return;
|
||
|
||
if (emit_clicked)
|
||
gtk_button_clicked (button);
|
||
|
||
gtk_button_update_state (button);
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
gtk_button_grab_broken (GtkWidget *widget,
|
||
GdkEventGrabBroken *event)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
|
||
gtk_button_do_release (button, FALSE);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
gtk_button_key_release (GtkWidget *widget,
|
||
GdkEventKey *event)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (priv->activate_timeout)
|
||
{
|
||
gtk_button_finish_activate (button, TRUE);
|
||
return TRUE;
|
||
}
|
||
else if (GTK_WIDGET_CLASS (gtk_button_parent_class)->key_release_event)
|
||
return GTK_WIDGET_CLASS (gtk_button_parent_class)->key_release_event (widget, event);
|
||
else
|
||
return FALSE;
|
||
}
|
||
|
||
static gboolean
|
||
gtk_button_enter_notify (GtkWidget *widget,
|
||
GdkEventCrossing *event)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if ((event->window == button->priv->event_window) &&
|
||
(event->detail != GDK_NOTIFY_INFERIOR))
|
||
{
|
||
priv->in_button = TRUE;
|
||
g_signal_emit (button, button_signals[ENTER], 0);
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static gboolean
|
||
gtk_button_leave_notify (GtkWidget *widget,
|
||
GdkEventCrossing *event)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if ((event->window == button->priv->event_window) &&
|
||
(event->detail != GDK_NOTIFY_INFERIOR))
|
||
{
|
||
priv->in_button = FALSE;
|
||
g_signal_emit (button, button_signals[LEAVE], 0);
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
gtk_real_button_pressed (GtkButton *button)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (priv->activate_timeout)
|
||
return;
|
||
|
||
priv->button_down = TRUE;
|
||
gtk_button_update_state (button);
|
||
}
|
||
|
||
static gboolean
|
||
touch_release_in_button (GtkButton *button)
|
||
{
|
||
GtkButtonPrivate *priv;
|
||
gint width, height;
|
||
GdkEvent *event;
|
||
gdouble x, y;
|
||
|
||
priv = button->priv;
|
||
event = gtk_get_current_event ();
|
||
|
||
if (!event)
|
||
return FALSE;
|
||
|
||
if (event->type != GDK_TOUCH_END ||
|
||
event->touch.window != priv->event_window)
|
||
{
|
||
gdk_event_free (event);
|
||
return FALSE;
|
||
}
|
||
|
||
gdk_event_get_coords (event, &x, &y);
|
||
width = gdk_window_get_width (priv->event_window);
|
||
height = gdk_window_get_height (priv->event_window);
|
||
|
||
gdk_event_free (event);
|
||
|
||
if (x >= 0 && x <= width &&
|
||
y >= 0 && y <= height)
|
||
return TRUE;
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
gtk_real_button_released (GtkButton *button)
|
||
{
|
||
gtk_button_do_release (button,
|
||
gtk_widget_is_sensitive (GTK_WIDGET (button)) &&
|
||
(button->priv->in_button ||
|
||
touch_release_in_button (button)));
|
||
}
|
||
|
||
static void
|
||
gtk_real_button_clicked (GtkButton *button)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (priv->action_helper)
|
||
gtk_action_helper_activate (priv->action_helper);
|
||
|
||
if (priv->action)
|
||
gtk_action_activate (priv->action);
|
||
}
|
||
|
||
static gboolean
|
||
button_activate_timeout (gpointer data)
|
||
{
|
||
gtk_button_finish_activate (data, TRUE);
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
gtk_real_button_activate (GtkButton *button)
|
||
{
|
||
GtkWidget *widget = GTK_WIDGET (button);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
GdkDevice *device;
|
||
guint32 time;
|
||
|
||
device = gtk_get_current_event_device ();
|
||
|
||
if (device && gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
|
||
device = gdk_device_get_associated_device (device);
|
||
|
||
if (gtk_widget_get_realized (widget) && !priv->activate_timeout)
|
||
{
|
||
time = gtk_get_current_event_time ();
|
||
|
||
/* bgo#626336 - Only grab if we have a device (from an event), not if we
|
||
* were activated programmatically when no event is available.
|
||
*/
|
||
if (device && gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
|
||
{
|
||
if (gdk_device_grab (device, priv->event_window,
|
||
GDK_OWNERSHIP_WINDOW, TRUE,
|
||
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
|
||
NULL, time) == GDK_GRAB_SUCCESS)
|
||
{
|
||
gtk_device_grab_add (widget, device, TRUE);
|
||
priv->grab_keyboard = device;
|
||
priv->grab_time = time;
|
||
}
|
||
}
|
||
|
||
priv->activate_timeout = gdk_threads_add_timeout (ACTIVATE_TIMEOUT,
|
||
button_activate_timeout,
|
||
button);
|
||
g_source_set_name_by_id (priv->activate_timeout, "[gtk+] button_activate_timeout");
|
||
priv->button_down = TRUE;
|
||
gtk_button_update_state (button);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_button_finish_activate (GtkButton *button,
|
||
gboolean do_it)
|
||
{
|
||
GtkWidget *widget = GTK_WIDGET (button);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
g_source_remove (priv->activate_timeout);
|
||
priv->activate_timeout = 0;
|
||
|
||
if (priv->grab_keyboard)
|
||
{
|
||
gdk_device_ungrab (priv->grab_keyboard, priv->grab_time);
|
||
gtk_device_grab_remove (widget, priv->grab_keyboard);
|
||
priv->grab_keyboard = NULL;
|
||
}
|
||
|
||
priv->button_down = FALSE;
|
||
|
||
gtk_button_update_state (button);
|
||
|
||
if (do_it)
|
||
gtk_button_clicked (button);
|
||
}
|
||
|
||
|
||
static void
|
||
gtk_button_get_size (GtkWidget *widget,
|
||
GtkOrientation orientation,
|
||
gint for_size,
|
||
gint *minimum_size,
|
||
gint *natural_size,
|
||
gint *minimum_baseline,
|
||
gint *natural_baseline)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkWidget *child;
|
||
GtkBorder border;
|
||
gint minimum, natural;
|
||
|
||
gtk_button_get_full_border (button, &border);
|
||
|
||
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
minimum = border.left + border.right;
|
||
natural = minimum;
|
||
|
||
if (for_size >= 0)
|
||
for_size -= border.top + border.bottom;
|
||
}
|
||
else
|
||
{
|
||
minimum = border.top + border.bottom;
|
||
natural = minimum;
|
||
|
||
if (for_size >= 0)
|
||
for_size -= border.left + border.right;
|
||
}
|
||
|
||
if ((child = gtk_bin_get_child (GTK_BIN (button))) &&
|
||
gtk_widget_get_visible (child))
|
||
{
|
||
gint child_min, child_nat;
|
||
gint child_min_baseline = -1, child_nat_baseline = -1;
|
||
|
||
_gtk_widget_get_preferred_size_for_size (child,
|
||
orientation,
|
||
for_size,
|
||
&child_min, &child_nat,
|
||
&child_min_baseline, &child_nat_baseline);
|
||
|
||
if (minimum_baseline && child_min_baseline >= 0)
|
||
*minimum_baseline = child_min_baseline + border.top;
|
||
if (natural_baseline && child_nat_baseline >= 0)
|
||
*natural_baseline = child_nat_baseline + border.top;
|
||
|
||
minimum += child_min;
|
||
natural += child_nat;
|
||
}
|
||
|
||
*minimum_size = minimum;
|
||
*natural_size = natural;
|
||
}
|
||
|
||
static void
|
||
gtk_button_get_preferred_width (GtkWidget *widget,
|
||
gint *minimum_size,
|
||
gint *natural_size)
|
||
{
|
||
gtk_button_get_size (widget, GTK_ORIENTATION_HORIZONTAL, -1, minimum_size, natural_size, NULL, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_button_get_preferred_height (GtkWidget *widget,
|
||
gint *minimum_size,
|
||
gint *natural_size)
|
||
{
|
||
gtk_button_get_size (widget, GTK_ORIENTATION_VERTICAL, -1, minimum_size, natural_size, NULL, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_button_get_preferred_width_for_height (GtkWidget *widget,
|
||
gint for_size,
|
||
gint *minimum_size,
|
||
gint *natural_size)
|
||
{
|
||
gtk_button_get_size (widget, GTK_ORIENTATION_HORIZONTAL, for_size, minimum_size, natural_size, NULL, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_button_get_preferred_height_for_width (GtkWidget *widget,
|
||
gint for_size,
|
||
gint *minimum_size,
|
||
gint *natural_size)
|
||
{
|
||
gtk_button_get_size (widget, GTK_ORIENTATION_VERTICAL, for_size, minimum_size, natural_size, NULL, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_button_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
|
||
gint width,
|
||
gint *minimum_size,
|
||
gint *natural_size,
|
||
gint *minimum_baseline,
|
||
gint *natural_baseline)
|
||
{
|
||
gtk_button_get_size (widget, GTK_ORIENTATION_VERTICAL, width, minimum_size, natural_size, minimum_baseline, natural_baseline);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_set_label:
|
||
* @button: a #GtkButton
|
||
* @label: a string
|
||
*
|
||
* Sets the text of the label of the button to @str. This text is
|
||
* also used to select the stock item if gtk_button_set_use_stock()
|
||
* is used.
|
||
*
|
||
* This will also clear any previously set labels.
|
||
**/
|
||
void
|
||
gtk_button_set_label (GtkButton *button,
|
||
const gchar *label)
|
||
{
|
||
GtkButtonPrivate *priv;
|
||
gchar *new_label;
|
||
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
priv = button->priv;
|
||
|
||
new_label = g_strdup (label);
|
||
g_free (priv->label_text);
|
||
priv->label_text = new_label;
|
||
|
||
gtk_button_construct_child (button);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (button), props[PROP_LABEL]);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_get_label:
|
||
* @button: a #GtkButton
|
||
*
|
||
* Fetches the text from the label of the button, as set by
|
||
* gtk_button_set_label(). If the label text has not
|
||
* been set the return value will be %NULL. This will be the
|
||
* case if you create an empty button with gtk_button_new() to
|
||
* use as a container.
|
||
*
|
||
* Returns: The text of the label widget. This string is owned
|
||
* by the widget and must not be modified or freed.
|
||
**/
|
||
const gchar *
|
||
gtk_button_get_label (GtkButton *button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_BUTTON (button), NULL);
|
||
|
||
return button->priv->label_text;
|
||
}
|
||
|
||
/**
|
||
* gtk_button_set_use_underline:
|
||
* @button: a #GtkButton
|
||
* @use_underline: %TRUE if underlines in the text indicate mnemonics
|
||
*
|
||
* If true, an underline in the text of the button label indicates
|
||
* the next character should be used for the mnemonic accelerator key.
|
||
*/
|
||
void
|
||
gtk_button_set_use_underline (GtkButton *button,
|
||
gboolean use_underline)
|
||
{
|
||
GtkButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
priv = button->priv;
|
||
|
||
use_underline = use_underline != FALSE;
|
||
|
||
if (use_underline != priv->use_underline)
|
||
{
|
||
priv->use_underline = use_underline;
|
||
|
||
gtk_button_construct_child (button);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (button), props[PROP_USE_UNDERLINE]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_button_get_use_underline:
|
||
* @button: a #GtkButton
|
||
*
|
||
* Returns whether an embedded underline in the button label indicates a
|
||
* mnemonic. See gtk_button_set_use_underline ().
|
||
*
|
||
* Returns: %TRUE if an embedded underline in the button label
|
||
* indicates the mnemonic accelerator keys.
|
||
**/
|
||
gboolean
|
||
gtk_button_get_use_underline (GtkButton *button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_BUTTON (button), FALSE);
|
||
|
||
return button->priv->use_underline;
|
||
}
|
||
|
||
/**
|
||
* gtk_button_set_use_stock:
|
||
* @button: a #GtkButton
|
||
* @use_stock: %TRUE if the button should use a stock item
|
||
*
|
||
* If %TRUE, the label set on the button is used as a
|
||
* stock id to select the stock item for the button.
|
||
*
|
||
* Deprecated: 3.10
|
||
*/
|
||
void
|
||
gtk_button_set_use_stock (GtkButton *button,
|
||
gboolean use_stock)
|
||
{
|
||
GtkButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
priv = button->priv;
|
||
|
||
use_stock = use_stock != FALSE;
|
||
|
||
if (use_stock != priv->use_stock)
|
||
{
|
||
priv->use_stock = use_stock;
|
||
|
||
gtk_button_construct_child (button);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (button), props[PROP_USE_STOCK]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_button_get_use_stock:
|
||
* @button: a #GtkButton
|
||
*
|
||
* Returns whether the button label is a stock item.
|
||
*
|
||
* Returns: %TRUE if the button label is used to
|
||
* select a stock item instead of being
|
||
* used directly as the label text.
|
||
*
|
||
* Deprecated: 3.10
|
||
*/
|
||
gboolean
|
||
gtk_button_get_use_stock (GtkButton *button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_BUTTON (button), FALSE);
|
||
|
||
return button->priv->use_stock;
|
||
}
|
||
|
||
/**
|
||
* gtk_button_set_focus_on_click:
|
||
* @button: a #GtkButton
|
||
* @focus_on_click: whether the button grabs focus when clicked with the mouse
|
||
*
|
||
* Sets whether the button will grab focus when it is clicked with the mouse.
|
||
* Making mouse clicks not grab focus is useful in places like toolbars where
|
||
* you don’t want the keyboard focus removed from the main area of the
|
||
* application.
|
||
*
|
||
* Since: 2.4
|
||
**/
|
||
void
|
||
gtk_button_set_focus_on_click (GtkButton *button,
|
||
gboolean focus_on_click)
|
||
{
|
||
GtkButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
priv = button->priv;
|
||
|
||
focus_on_click = focus_on_click != FALSE;
|
||
|
||
if (priv->focus_on_click != focus_on_click)
|
||
{
|
||
priv->focus_on_click = focus_on_click;
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (button), props[PROP_FOCUS_ON_CLICK]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_button_get_focus_on_click:
|
||
* @button: a #GtkButton
|
||
*
|
||
* Returns whether the button grabs focus when it is clicked with the mouse.
|
||
* See gtk_button_set_focus_on_click().
|
||
*
|
||
* Returns: %TRUE if the button grabs focus when it is clicked with
|
||
* the mouse.
|
||
*
|
||
* Since: 2.4
|
||
**/
|
||
gboolean
|
||
gtk_button_get_focus_on_click (GtkButton *button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_BUTTON (button), FALSE);
|
||
|
||
return button->priv->focus_on_click;
|
||
}
|
||
|
||
/**
|
||
* gtk_button_set_alignment:
|
||
* @button: a #GtkButton
|
||
* @xalign: the horizontal position of the child, 0.0 is left aligned,
|
||
* 1.0 is right aligned
|
||
* @yalign: the vertical position of the child, 0.0 is top aligned,
|
||
* 1.0 is bottom aligned
|
||
*
|
||
* Sets the alignment of the child. This property has no effect unless
|
||
* the child is a #GtkMisc or a #GtkAlignment.
|
||
*
|
||
* Since: 2.4
|
||
*
|
||
* Deprecated: 3.14: Access the child widget directly if you need to control
|
||
* its alignment.
|
||
*/
|
||
void
|
||
gtk_button_set_alignment (GtkButton *button,
|
||
gfloat xalign,
|
||
gfloat yalign)
|
||
{
|
||
GtkButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
priv = button->priv;
|
||
|
||
priv->xalign = xalign;
|
||
priv->yalign = yalign;
|
||
priv->align_set = 1;
|
||
|
||
maybe_set_alignment (button, gtk_bin_get_child (GTK_BIN (button)));
|
||
|
||
g_object_freeze_notify (G_OBJECT (button));
|
||
g_object_notify_by_pspec (G_OBJECT (button), props[PROP_XALIGN]);
|
||
g_object_notify_by_pspec (G_OBJECT (button), props[PROP_YALIGN]);
|
||
g_object_thaw_notify (G_OBJECT (button));
|
||
}
|
||
|
||
/**
|
||
* gtk_button_get_alignment:
|
||
* @button: a #GtkButton
|
||
* @xalign: (out): return location for horizontal alignment
|
||
* @yalign: (out): return location for vertical alignment
|
||
*
|
||
* Gets the alignment of the child in the button.
|
||
*
|
||
* Since: 2.4
|
||
*
|
||
* Deprecated: 3.14: Access the child widget directly if you need to control
|
||
* its alignment.
|
||
*/
|
||
void
|
||
gtk_button_get_alignment (GtkButton *button,
|
||
gfloat *xalign,
|
||
gfloat *yalign)
|
||
{
|
||
GtkButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
priv = button->priv;
|
||
|
||
if (xalign)
|
||
*xalign = priv->xalign;
|
||
|
||
if (yalign)
|
||
*yalign = priv->yalign;
|
||
}
|
||
|
||
static void
|
||
gtk_button_enter_leave (GtkButton *button)
|
||
{
|
||
gtk_button_update_state (button);
|
||
}
|
||
|
||
static void
|
||
gtk_button_update_state (GtkButton *button)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
GtkStateFlags new_state;
|
||
gboolean depressed;
|
||
|
||
if (priv->activate_timeout)
|
||
depressed = TRUE;
|
||
else
|
||
depressed = priv->in_button && priv->button_down;
|
||
|
||
new_state = gtk_widget_get_state_flags (GTK_WIDGET (button)) &
|
||
~(GTK_STATE_FLAG_PRELIGHT | GTK_STATE_FLAG_ACTIVE);
|
||
|
||
if (priv->in_button)
|
||
new_state |= GTK_STATE_FLAG_PRELIGHT;
|
||
|
||
if (depressed)
|
||
new_state |= GTK_STATE_FLAG_ACTIVE;
|
||
|
||
gtk_widget_set_state_flags (GTK_WIDGET (button), new_state, TRUE);
|
||
}
|
||
|
||
static void
|
||
show_image_change_notify (GtkButton *button)
|
||
{
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (priv->image)
|
||
{
|
||
if (show_image (button))
|
||
gtk_widget_show (priv->image);
|
||
else
|
||
gtk_widget_hide (priv->image);
|
||
}
|
||
}
|
||
|
||
static void
|
||
traverse_container (GtkWidget *widget,
|
||
gpointer data)
|
||
{
|
||
if (GTK_IS_BUTTON (widget))
|
||
show_image_change_notify (GTK_BUTTON (widget));
|
||
else if (GTK_IS_CONTAINER (widget))
|
||
gtk_container_forall (GTK_CONTAINER (widget), traverse_container, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_button_setting_changed (GtkSettings *settings)
|
||
{
|
||
GList *list, *l;
|
||
|
||
list = gtk_window_list_toplevels ();
|
||
|
||
for (l = list; l; l = l->next)
|
||
gtk_container_forall (GTK_CONTAINER (l->data),
|
||
traverse_container, NULL);
|
||
|
||
g_list_free (list);
|
||
}
|
||
|
||
static void
|
||
gtk_button_screen_changed (GtkWidget *widget,
|
||
GdkScreen *previous_screen)
|
||
{
|
||
GtkButton *button;
|
||
GtkButtonPrivate *priv;
|
||
GtkSettings *settings;
|
||
gulong show_image_connection;
|
||
|
||
if (!gtk_widget_has_screen (widget))
|
||
return;
|
||
|
||
button = GTK_BUTTON (widget);
|
||
priv = button->priv;
|
||
|
||
/* If the button is being pressed while the screen changes the
|
||
release might never occur, so we reset the state. */
|
||
if (priv->button_down)
|
||
{
|
||
priv->button_down = FALSE;
|
||
gtk_button_update_state (button);
|
||
}
|
||
|
||
settings = gtk_widget_get_settings (widget);
|
||
|
||
show_image_connection =
|
||
g_signal_handler_find (settings, G_SIGNAL_MATCH_FUNC, 0, 0,
|
||
NULL, gtk_button_setting_changed, NULL);
|
||
|
||
if (show_image_connection)
|
||
return;
|
||
|
||
g_signal_connect (settings, "notify::gtk-button-images",
|
||
G_CALLBACK (gtk_button_setting_changed), NULL);
|
||
|
||
show_image_change_notify (button);
|
||
}
|
||
|
||
static void
|
||
gtk_button_state_changed (GtkWidget *widget,
|
||
GtkStateType previous_state)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
|
||
if (!gtk_widget_is_sensitive (widget))
|
||
gtk_button_do_release (button, FALSE);
|
||
}
|
||
|
||
static void
|
||
gtk_button_grab_notify (GtkWidget *widget,
|
||
gboolean was_grabbed)
|
||
{
|
||
GtkButton *button = GTK_BUTTON (widget);
|
||
GtkButtonPrivate *priv = button->priv;
|
||
|
||
if (priv->activate_timeout &&
|
||
priv->grab_keyboard &&
|
||
gtk_widget_device_is_shadowed (widget, priv->grab_keyboard))
|
||
gtk_button_finish_activate (button, FALSE);
|
||
|
||
if (!was_grabbed)
|
||
gtk_button_do_release (button, FALSE);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_set_image:
|
||
* @button: a #GtkButton
|
||
* @image: a widget to set as the image for the button
|
||
*
|
||
* Set the image of @button to the given widget. The image will be
|
||
* displayed if the label text is %NULL or if
|
||
* #GtkButton:always-show-image is %TRUE. You don’t have to call
|
||
* gtk_widget_show() on @image yourself.
|
||
*
|
||
* Since: 2.6
|
||
*/
|
||
void
|
||
gtk_button_set_image (GtkButton *button,
|
||
GtkWidget *image)
|
||
{
|
||
GtkButtonPrivate *priv;
|
||
GtkWidget *parent;
|
||
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
g_return_if_fail (image == NULL || GTK_IS_WIDGET (image));
|
||
|
||
priv = button->priv;
|
||
|
||
if (priv->image)
|
||
{
|
||
parent = gtk_widget_get_parent (priv->image);
|
||
if (parent)
|
||
gtk_container_remove (GTK_CONTAINER (parent), priv->image);
|
||
}
|
||
|
||
priv->image = image;
|
||
priv->image_is_stock = (image == NULL);
|
||
|
||
gtk_button_construct_child (button);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (button), props[PROP_IMAGE]);
|
||
}
|
||
|
||
/**
|
||
* gtk_button_get_image:
|
||
* @button: a #GtkButton
|
||
*
|
||
* Gets the widget that is currenty set as the image of @button.
|
||
* This may have been explicitly set by gtk_button_set_image()
|
||
* or constructed by gtk_button_new_from_stock().
|
||
*
|
||
* Returns: (transfer none): a #GtkWidget or %NULL in case there is no image
|
||
*
|
||
* Since: 2.6
|
||
*/
|
||
GtkWidget *
|
||
gtk_button_get_image (GtkButton *button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_BUTTON (button), NULL);
|
||
|
||
return button->priv->image;
|
||
}
|
||
|
||
/**
|
||
* gtk_button_set_image_position:
|
||
* @button: a #GtkButton
|
||
* @position: the position
|
||
*
|
||
* Sets the position of the image relative to the text
|
||
* inside the button.
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
void
|
||
gtk_button_set_image_position (GtkButton *button,
|
||
GtkPositionType position)
|
||
{
|
||
GtkButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
g_return_if_fail (position >= GTK_POS_LEFT && position <= GTK_POS_BOTTOM);
|
||
|
||
priv = button->priv;
|
||
|
||
if (priv->image_position != position)
|
||
{
|
||
priv->image_position = position;
|
||
|
||
gtk_button_construct_child (button);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (button), props[PROP_IMAGE_POSITION]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_button_get_image_position:
|
||
* @button: a #GtkButton
|
||
*
|
||
* Gets the position of the image relative to the text
|
||
* inside the button.
|
||
*
|
||
* Returns: the position
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
GtkPositionType
|
||
gtk_button_get_image_position (GtkButton *button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_BUTTON (button), GTK_POS_LEFT);
|
||
|
||
return button->priv->image_position;
|
||
}
|
||
|
||
/**
|
||
* gtk_button_set_always_show_image:
|
||
* @button: a #GtkButton
|
||
* @always_show: %TRUE if the menuitem should always show the image
|
||
*
|
||
* If %TRUE, the button will ignore the #GtkSettings:gtk-button-images
|
||
* setting and always show the image, if available.
|
||
*
|
||
* Use this property if the button would be useless or hard to use
|
||
* without the image.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
void
|
||
gtk_button_set_always_show_image (GtkButton *button,
|
||
gboolean always_show)
|
||
{
|
||
GtkButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_BUTTON (button));
|
||
|
||
priv = button->priv;
|
||
|
||
if (priv->always_show_image != always_show)
|
||
{
|
||
priv->always_show_image = always_show;
|
||
|
||
if (priv->image)
|
||
{
|
||
if (show_image (button))
|
||
gtk_widget_show (priv->image);
|
||
else
|
||
gtk_widget_hide (priv->image);
|
||
}
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (button), props[PROP_ALWAYS_SHOW_IMAGE]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_button_get_always_show_image:
|
||
* @button: a #GtkButton
|
||
*
|
||
* Returns whether the button will ignore the #GtkSettings:gtk-button-images
|
||
* setting and always show the image, if available.
|
||
*
|
||
* Returns: %TRUE if the button will always show the image
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
gboolean
|
||
gtk_button_get_always_show_image (GtkButton *button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_BUTTON (button), FALSE);
|
||
|
||
return button->priv->always_show_image;
|
||
}
|
||
|
||
/**
|
||
* gtk_button_get_event_window:
|
||
* @button: a #GtkButton
|
||
*
|
||
* Returns the button’s event window if it is realized, %NULL otherwise.
|
||
* This function should be rarely needed.
|
||
*
|
||
* Returns: (transfer none): @button’s event window.
|
||
*
|
||
* Since: 2.22
|
||
*/
|
||
GdkWindow*
|
||
gtk_button_get_event_window (GtkButton *button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_BUTTON (button), NULL);
|
||
|
||
return button->priv->event_window;
|
||
}
|