forked from AuroraMiddleware/gtk
a4f0cc112b
2004-05-07 Matthias Clasen <mclasen@redhat.com> * gtk/gtkbutton.c (gtk_button_size_allocate): Don't let the child draw over the focus rectangle.
1619 lines
45 KiB
C
1619 lines
45 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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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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#include <config.h>
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#include <string.h>
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#include "gtkalignment.h"
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#include "gtkbutton.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 "gtkhbox.h"
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#include "gtkstock.h"
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#include "gtkiconfactory.h"
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#include "gtkintl.h"
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#define CHILD_SPACING 1
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static const GtkBorder default_default_border = { 1, 1, 1, 1 };
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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_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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};
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#define GTK_BUTTON_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_TYPE_BUTTON, GtkButtonPrivate))
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typedef struct _GtkButtonPrivate GtkButtonPrivate;
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struct _GtkButtonPrivate
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{
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gfloat xalign;
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gfloat yalign;
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GtkSettings *settings;
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guint show_image_connection;
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GtkWidget *image;
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guint align_set : 1;
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};
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static void gtk_button_class_init (GtkButtonClass *klass);
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static void gtk_button_init (GtkButton *button);
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static void gtk_button_destroy (GtkObject *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_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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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_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static gint gtk_button_button_press (GtkWidget *widget,
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GdkEventButton *event);
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static gint gtk_button_button_release (GtkWidget *widget,
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GdkEventButton *event);
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static gint gtk_button_key_release (GtkWidget *widget,
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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_activate (GtkButton *button);
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static void gtk_button_update_state (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 GObject* gtk_button_constructor (GType type,
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guint n_construct_properties,
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GObjectConstructParam *construct_params);
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static void gtk_button_construct_child (GtkButton *button);
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static GtkBinClass *parent_class = NULL;
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static guint button_signals[LAST_SIGNAL] = { 0 };
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GType
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gtk_button_get_type (void)
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{
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static GType button_type = 0;
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if (!button_type)
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{
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static const GTypeInfo button_info =
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{
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sizeof (GtkButtonClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gtk_button_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GtkButton),
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16, /* n_preallocs */
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(GInstanceInitFunc) gtk_button_init,
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};
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button_type = g_type_register_static (GTK_TYPE_BIN, "GtkButton",
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&button_info, 0);
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}
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return button_type;
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}
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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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GtkObjectClass *object_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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object_class = (GtkObjectClass*) klass;
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widget_class = (GtkWidgetClass*) klass;
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container_class = (GtkContainerClass*) klass;
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->constructor = gtk_button_constructor;
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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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object_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->size_request = gtk_button_size_request;
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widget_class->size_allocate = gtk_button_size_allocate;
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widget_class->expose_event = gtk_button_expose;
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widget_class->button_press_event = gtk_button_button_press;
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widget_class->button_release_event = gtk_button_button_release;
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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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container_class->child_type = gtk_button_child_type;
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container_class->add = gtk_button_add;
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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_update_state;
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klass->leave = gtk_button_update_state;
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klass->activate = gtk_real_button_activate;
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g_object_class_install_property (gobject_class,
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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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G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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g_object_class_install_property (gobject_class,
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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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G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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g_object_class_install_property (gobject_class,
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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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G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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g_object_class_install_property (gobject_class,
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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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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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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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G_PARAM_READABLE | G_PARAM_WRITABLE));
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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 it's 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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g_object_class_install_property (gobject_class,
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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,
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1.0,
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0.5,
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G_PARAM_READABLE | G_PARAM_WRITABLE));
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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
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* can be used to control it's vertical alignment. 0.0 is top aligned,
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* 1.0 is bottom aligned.
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*
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* Since: 2.4
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*/
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g_object_class_install_property (gobject_class,
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PROP_YALIGN,
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g_param_spec_float("yalign",
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P_("Vertical alignment for child"),
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P_("Vertical position of child in available space. 0.0 is top aligned, 1.0 is bottom aligned"),
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0.0,
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1.0,
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0.5,
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G_PARAM_READABLE | G_PARAM_WRITABLE));
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button_signals[PRESSED] =
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g_signal_new ("pressed",
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GtkButtonClass, pressed),
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NULL, NULL,
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_gtk_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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button_signals[RELEASED] =
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g_signal_new ("released",
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GtkButtonClass, released),
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NULL, NULL,
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_gtk_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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button_signals[CLICKED] =
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g_signal_new ("clicked",
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (GtkButtonClass, clicked),
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NULL, NULL,
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_gtk_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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button_signals[ENTER] =
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g_signal_new ("enter",
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GtkButtonClass, enter),
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NULL, NULL,
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_gtk_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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button_signals[LEAVE] =
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g_signal_new ("leave",
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GtkButtonClass, leave),
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NULL, NULL,
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_gtk_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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/**
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* GtkButton::activate:
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* @widget: the object which received the signal.
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*
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* The "activate" signal on GtkButton is an action signal and
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* emitting it causes the button to animate press then release.
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* Applications should never connect to this signal, but use the
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* "clicked" signal.
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*/
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button_signals[ACTIVATE] =
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g_signal_new ("activate",
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (GtkButtonClass, activate),
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NULL, NULL,
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_gtk_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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widget_class->activate_signal = button_signals[ACTIVATE];
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_boxed ("default_border",
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P_("Default Spacing"),
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P_("Extra space to add for CAN_DEFAULT buttons"),
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GTK_TYPE_BORDER,
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G_PARAM_READABLE));
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_boxed ("default_outside_border",
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P_("Default Outside Spacing"),
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P_("Extra space to add for CAN_DEFAULT buttons that is always drawn outside the border"),
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GTK_TYPE_BORDER,
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G_PARAM_READABLE));
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_int ("child_displacement_x",
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P_("Child X Displacement"),
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P_("How far in the x direction to move the child when the button is depressed"),
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G_MININT,
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G_MAXINT,
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0,
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G_PARAM_READABLE));
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_int ("child_displacement_y",
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P_("Child Y Displacement"),
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P_("How far in the y direction to move the child when the button is depressed"),
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G_MININT,
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G_MAXINT,
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0,
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G_PARAM_READABLE));
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gtk_settings_install_property (g_param_spec_boolean ("gtk-button-images",
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P_("Show button images"),
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P_("Whether stock icons should be shown in buttons"),
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TRUE,
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G_PARAM_READWRITE));
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g_type_class_add_private (gobject_class, sizeof (GtkButtonPrivate));
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}
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static void
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gtk_button_init (GtkButton *button)
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{
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GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
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GTK_WIDGET_SET_FLAGS (button, GTK_CAN_FOCUS | GTK_RECEIVES_DEFAULT);
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GTK_WIDGET_SET_FLAGS (button, GTK_NO_WINDOW);
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button->label_text = NULL;
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button->constructed = FALSE;
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button->in_button = FALSE;
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button->button_down = FALSE;
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button->relief = GTK_RELIEF_NORMAL;
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button->use_stock = FALSE;
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button->use_underline = FALSE;
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button->depressed = FALSE;
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button->depress_on_activate = TRUE;
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button->focus_on_click = TRUE;
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priv->xalign = 0.5;
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priv->yalign = 0.5;
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priv->align_set = 0;
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}
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static void
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gtk_button_destroy (GtkObject *object)
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{
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GtkButton *button = GTK_BUTTON (object);
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if (button->label_text)
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{
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g_free (button->label_text);
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button->label_text = NULL;
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}
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(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
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}
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static GObject*
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gtk_button_constructor (GType type,
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guint n_construct_properties,
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GObjectConstructParam *construct_params)
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{
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GObject *object;
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GtkButton *button;
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object = (* G_OBJECT_CLASS (parent_class)->constructor) (type,
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n_construct_properties,
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construct_params);
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button = GTK_BUTTON (object);
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button->constructed = TRUE;
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if (button->label_text != NULL)
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gtk_button_construct_child (button);
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return object;
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}
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|
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|
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static GType
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gtk_button_child_type (GtkContainer *container)
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{
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if (!GTK_BIN (container)->child)
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return GTK_TYPE_WIDGET;
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else
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return G_TYPE_NONE;
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}
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|
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static void
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maybe_set_alignment (GtkButton *button,
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GtkWidget *widget)
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{
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GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
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if (GTK_IS_MISC (widget))
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{
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GtkMisc *misc = GTK_MISC (widget);
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if (priv->align_set)
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gtk_misc_set_alignment (misc, priv->xalign, priv->yalign);
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}
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else if (GTK_IS_ALIGNMENT (widget))
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{
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GtkAlignment *alignment = GTK_ALIGNMENT (widget);
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if (priv->align_set)
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gtk_alignment_set (alignment, priv->xalign, priv->yalign,
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alignment->xscale, alignment->yscale);
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}
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}
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|
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static void
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gtk_button_add (GtkContainer *container,
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GtkWidget *widget)
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{
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maybe_set_alignment (GTK_BUTTON (container), widget);
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GTK_CONTAINER_CLASS (parent_class)->add (container, widget);
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}
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|
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static void
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gtk_button_set_property (GObject *object,
|
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guint prop_id,
|
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const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
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GtkButton *button = GTK_BUTTON (object);
|
|
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_LABEL:
|
|
gtk_button_set_label (button, g_value_get_string (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:
|
|
gtk_button_set_use_stock (button, g_value_get_boolean (value));
|
|
break;
|
|
case PROP_FOCUS_ON_CLICK:
|
|
gtk_button_set_focus_on_click (button, g_value_get_boolean (value));
|
|
break;
|
|
case PROP_XALIGN:
|
|
gtk_button_set_alignment (button, g_value_get_float (value), priv->yalign);
|
|
break;
|
|
case PROP_YALIGN:
|
|
gtk_button_set_alignment (button, priv->xalign, g_value_get_float (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 = GTK_BUTTON_GET_PRIVATE (button);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_LABEL:
|
|
g_value_set_string (value, button->label_text);
|
|
break;
|
|
case PROP_RELIEF:
|
|
g_value_set_enum (value, gtk_button_get_relief (button));
|
|
break;
|
|
case PROP_USE_UNDERLINE:
|
|
g_value_set_boolean (value, button->use_underline);
|
|
break;
|
|
case PROP_USE_STOCK:
|
|
g_value_set_boolean (value, button->use_stock);
|
|
break;
|
|
case PROP_FOCUS_ON_CLICK:
|
|
g_value_set_boolean (value, button->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;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
GtkWidget*
|
|
gtk_button_new (void)
|
|
{
|
|
return g_object_new (GTK_TYPE_BUTTON, NULL);
|
|
}
|
|
|
|
static gboolean
|
|
show_image (GtkButton *button)
|
|
{
|
|
GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (button));
|
|
gboolean show;
|
|
|
|
g_object_get (settings, "gtk-button-images", &show, NULL);
|
|
|
|
return show;
|
|
}
|
|
|
|
static void
|
|
gtk_button_construct_child (GtkButton *button)
|
|
{
|
|
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
|
|
GtkStockItem item;
|
|
GtkWidget *label;
|
|
GtkWidget *hbox;
|
|
GtkWidget *align;
|
|
|
|
if (!button->constructed)
|
|
return;
|
|
|
|
if (button->label_text == NULL)
|
|
return;
|
|
|
|
if (GTK_BIN (button)->child)
|
|
{
|
|
gtk_container_remove (GTK_CONTAINER (button),
|
|
GTK_BIN (button)->child);
|
|
priv->image = NULL;
|
|
}
|
|
|
|
if (button->use_stock &&
|
|
gtk_stock_lookup (button->label_text, &item))
|
|
{
|
|
label = gtk_label_new_with_mnemonic (item.label);
|
|
|
|
gtk_label_set_mnemonic_widget (GTK_LABEL (label), GTK_WIDGET (button));
|
|
|
|
priv->image = gtk_image_new_from_stock (button->label_text, GTK_ICON_SIZE_BUTTON);
|
|
g_object_set (priv->image,
|
|
"visible", show_image (button),
|
|
"no_show_all", TRUE,
|
|
NULL);
|
|
hbox = gtk_hbox_new (FALSE, 2);
|
|
|
|
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_box_pack_start (GTK_BOX (hbox), priv->image, FALSE, FALSE, 0);
|
|
gtk_box_pack_end (GTK_BOX (hbox), label, FALSE, FALSE, 0);
|
|
|
|
gtk_container_add (GTK_CONTAINER (button), align);
|
|
gtk_container_add (GTK_CONTAINER (align), hbox);
|
|
gtk_widget_show_all (align);
|
|
|
|
return;
|
|
}
|
|
|
|
if (button->use_underline)
|
|
{
|
|
label = gtk_label_new_with_mnemonic (button->label_text);
|
|
gtk_label_set_mnemonic_widget (GTK_LABEL (label), GTK_WIDGET (button));
|
|
}
|
|
else
|
|
label = gtk_label_new (button->label_text);
|
|
|
|
if (priv->align_set)
|
|
gtk_misc_set_alignment (GTK_MISC (label), priv->xalign, priv->yalign);
|
|
|
|
gtk_widget_show (label);
|
|
gtk_container_add (GTK_CONTAINER (button), label);
|
|
}
|
|
|
|
|
|
GtkWidget*
|
|
gtk_button_new_with_label (const gchar *label)
|
|
{
|
|
return g_object_new (GTK_TYPE_BUTTON, "label", label, NULL);
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
**/
|
|
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
|
|
* @returns: a new #GtkButton
|
|
*
|
|
* 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.
|
|
**/
|
|
GtkWidget*
|
|
gtk_button_new_with_mnemonic (const gchar *label)
|
|
{
|
|
return g_object_new (GTK_TYPE_BUTTON, "label", label, "use_underline", TRUE, NULL);
|
|
}
|
|
|
|
void
|
|
gtk_button_pressed (GtkButton *button)
|
|
{
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
|
|
g_signal_emit (button, button_signals[PRESSED], 0);
|
|
}
|
|
|
|
void
|
|
gtk_button_released (GtkButton *button)
|
|
{
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
g_signal_emit (button, button_signals[RELEASED], 0);
|
|
}
|
|
|
|
void
|
|
gtk_button_clicked (GtkButton *button)
|
|
{
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
g_signal_emit (button, button_signals[CLICKED], 0);
|
|
}
|
|
|
|
void
|
|
gtk_button_enter (GtkButton *button)
|
|
{
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
g_signal_emit (button, button_signals[ENTER], 0);
|
|
}
|
|
|
|
void
|
|
gtk_button_leave (GtkButton *button)
|
|
{
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
g_signal_emit (button, button_signals[LEAVE], 0);
|
|
}
|
|
|
|
void
|
|
gtk_button_set_relief (GtkButton *button,
|
|
GtkReliefStyle newrelief)
|
|
{
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
if (newrelief != button->relief)
|
|
{
|
|
button->relief = newrelief;
|
|
g_object_notify (G_OBJECT (button), "relief");
|
|
gtk_widget_queue_draw (GTK_WIDGET (button));
|
|
}
|
|
}
|
|
|
|
GtkReliefStyle
|
|
gtk_button_get_relief (GtkButton *button)
|
|
{
|
|
g_return_val_if_fail (button != NULL, GTK_RELIEF_NORMAL);
|
|
g_return_val_if_fail (GTK_IS_BUTTON (button), GTK_RELIEF_NORMAL);
|
|
|
|
return button->relief;
|
|
}
|
|
|
|
static void
|
|
gtk_button_realize (GtkWidget *widget)
|
|
{
|
|
GtkButton *button;
|
|
GdkWindowAttr attributes;
|
|
gint attributes_mask;
|
|
gint border_width;
|
|
|
|
button = GTK_BUTTON (widget);
|
|
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
|
|
|
|
border_width = GTK_CONTAINER (widget)->border_width;
|
|
|
|
attributes.window_type = GDK_WINDOW_CHILD;
|
|
attributes.x = widget->allocation.x + border_width;
|
|
attributes.y = widget->allocation.y + border_width;
|
|
attributes.width = widget->allocation.width - border_width * 2;
|
|
attributes.height = widget->allocation.height - border_width * 2;
|
|
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_ENTER_NOTIFY_MASK |
|
|
GDK_LEAVE_NOTIFY_MASK);
|
|
|
|
attributes_mask = GDK_WA_X | GDK_WA_Y;
|
|
|
|
widget->window = gtk_widget_get_parent_window (widget);
|
|
g_object_ref (widget->window);
|
|
|
|
button->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
|
|
&attributes, attributes_mask);
|
|
gdk_window_set_user_data (button->event_window, button);
|
|
|
|
widget->style = gtk_style_attach (widget->style, widget->window);
|
|
}
|
|
|
|
static void
|
|
gtk_button_unrealize (GtkWidget *widget)
|
|
{
|
|
GtkButton *button = GTK_BUTTON (widget);
|
|
|
|
if (button->activate_timeout)
|
|
gtk_button_finish_activate (button, FALSE);
|
|
|
|
if (button->event_window)
|
|
{
|
|
gdk_window_set_user_data (button->event_window, NULL);
|
|
gdk_window_destroy (button->event_window);
|
|
button->event_window = NULL;
|
|
}
|
|
|
|
GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
|
|
}
|
|
|
|
static void
|
|
gtk_button_map (GtkWidget *widget)
|
|
{
|
|
GtkButton *button = GTK_BUTTON (widget);
|
|
|
|
g_return_if_fail (GTK_IS_BUTTON (widget));
|
|
|
|
GTK_WIDGET_CLASS (parent_class)->map (widget);
|
|
|
|
if (button->event_window)
|
|
gdk_window_show (button->event_window);
|
|
}
|
|
|
|
static void
|
|
gtk_button_unmap (GtkWidget *widget)
|
|
{
|
|
GtkButton *button = GTK_BUTTON (widget);
|
|
|
|
g_return_if_fail (GTK_IS_BUTTON (widget));
|
|
|
|
if (button->event_window)
|
|
gdk_window_hide (button->event_window);
|
|
|
|
GTK_WIDGET_CLASS (parent_class)->unmap (widget);
|
|
}
|
|
|
|
static void
|
|
gtk_button_get_props (GtkButton *button,
|
|
GtkBorder *default_border,
|
|
GtkBorder *default_outside_border,
|
|
gboolean *interior_focus)
|
|
{
|
|
GtkWidget *widget = GTK_WIDGET (button);
|
|
GtkBorder *tmp_border;
|
|
|
|
if (default_border)
|
|
{
|
|
gtk_widget_style_get (widget, "default_border", &tmp_border, NULL);
|
|
|
|
if (tmp_border)
|
|
{
|
|
*default_border = *tmp_border;
|
|
g_free (tmp_border);
|
|
}
|
|
else
|
|
*default_border = default_default_border;
|
|
}
|
|
|
|
if (default_outside_border)
|
|
{
|
|
gtk_widget_style_get (widget, "default_outside_border", &tmp_border, NULL);
|
|
|
|
if (tmp_border)
|
|
{
|
|
*default_outside_border = *tmp_border;
|
|
g_free (tmp_border);
|
|
}
|
|
else
|
|
*default_outside_border = default_default_outside_border;
|
|
}
|
|
|
|
if (interior_focus)
|
|
gtk_widget_style_get (widget, "interior_focus", interior_focus, NULL);
|
|
}
|
|
|
|
static void
|
|
gtk_button_size_request (GtkWidget *widget,
|
|
GtkRequisition *requisition)
|
|
{
|
|
GtkButton *button = GTK_BUTTON (widget);
|
|
GtkBorder default_border;
|
|
gboolean interior_focus;
|
|
gint focus_width;
|
|
gint focus_pad;
|
|
|
|
gtk_button_get_props (button, &default_border, NULL, &interior_focus);
|
|
gtk_widget_style_get (GTK_WIDGET (widget),
|
|
"focus-line-width", &focus_width,
|
|
"focus-padding", &focus_pad,
|
|
NULL);
|
|
|
|
requisition->width = (GTK_CONTAINER (widget)->border_width + CHILD_SPACING +
|
|
GTK_WIDGET (widget)->style->xthickness) * 2;
|
|
requisition->height = (GTK_CONTAINER (widget)->border_width + CHILD_SPACING +
|
|
GTK_WIDGET (widget)->style->ythickness) * 2;
|
|
|
|
if (GTK_WIDGET_CAN_DEFAULT (widget))
|
|
{
|
|
requisition->width += default_border.left + default_border.right;
|
|
requisition->height += default_border.top + default_border.bottom;
|
|
}
|
|
|
|
if (GTK_BIN (button)->child && GTK_WIDGET_VISIBLE (GTK_BIN (button)->child))
|
|
{
|
|
GtkRequisition child_requisition;
|
|
|
|
gtk_widget_size_request (GTK_BIN (button)->child, &child_requisition);
|
|
|
|
requisition->width += child_requisition.width;
|
|
requisition->height += child_requisition.height;
|
|
}
|
|
|
|
requisition->width += 2 * (focus_width + focus_pad);
|
|
requisition->height += 2 * (focus_width + focus_pad);
|
|
}
|
|
|
|
static void
|
|
gtk_button_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
GtkButton *button = GTK_BUTTON (widget);
|
|
GtkAllocation child_allocation;
|
|
|
|
gint border_width = GTK_CONTAINER (widget)->border_width;
|
|
gint xthickness = GTK_WIDGET (widget)->style->xthickness;
|
|
gint ythickness = GTK_WIDGET (widget)->style->ythickness;
|
|
GtkBorder default_border;
|
|
gint focus_width;
|
|
gint focus_pad;
|
|
|
|
gtk_button_get_props (button, &default_border, NULL, NULL);
|
|
gtk_widget_style_get (GTK_WIDGET (widget),
|
|
"focus-line-width", &focus_width,
|
|
"focus-padding", &focus_pad,
|
|
NULL);
|
|
|
|
|
|
widget->allocation = *allocation;
|
|
|
|
if (GTK_WIDGET_REALIZED (widget))
|
|
gdk_window_move_resize (button->event_window,
|
|
widget->allocation.x + border_width,
|
|
widget->allocation.y + border_width,
|
|
widget->allocation.width - border_width * 2,
|
|
widget->allocation.height - border_width * 2);
|
|
|
|
if (GTK_BIN (button)->child && GTK_WIDGET_VISIBLE (GTK_BIN (button)->child))
|
|
{
|
|
child_allocation.x = widget->allocation.x + border_width + CHILD_SPACING + xthickness;
|
|
child_allocation.y = widget->allocation.y + border_width + CHILD_SPACING + ythickness;
|
|
|
|
child_allocation.width = MAX (1, widget->allocation.width - (CHILD_SPACING + xthickness) * 2 -
|
|
border_width * 2);
|
|
child_allocation.height = MAX (1, widget->allocation.height - (CHILD_SPACING + ythickness) * 2 -
|
|
border_width * 2);
|
|
|
|
if (GTK_WIDGET_CAN_DEFAULT (button))
|
|
{
|
|
child_allocation.x += default_border.left;
|
|
child_allocation.y += default_border.top;
|
|
child_allocation.width = MAX (1, child_allocation.width - default_border.left - default_border.right);
|
|
child_allocation.height = MAX (1, child_allocation.height - default_border.top - default_border.bottom);
|
|
}
|
|
|
|
child_allocation.x += focus_width + focus_pad;
|
|
child_allocation.y += focus_width + focus_pad;
|
|
child_allocation.width = MAX (1, child_allocation.width - (focus_width + focus_pad) * 2);
|
|
child_allocation.height = MAX (1, child_allocation.height - (focus_width + focus_pad) * 2);
|
|
|
|
if (button->depressed)
|
|
{
|
|
gint child_displacement_x;
|
|
gint child_displacement_y;
|
|
|
|
gtk_widget_style_get (widget,
|
|
"child_displacement_x", &child_displacement_x,
|
|
"child_displacement_y", &child_displacement_y,
|
|
NULL);
|
|
child_allocation.x += child_displacement_x;
|
|
child_allocation.y += child_displacement_y;
|
|
}
|
|
|
|
gtk_widget_size_allocate (GTK_BIN (button)->child, &child_allocation);
|
|
}
|
|
}
|
|
|
|
void
|
|
_gtk_button_paint (GtkButton *button,
|
|
GdkRectangle *area,
|
|
GtkStateType state_type,
|
|
GtkShadowType shadow_type,
|
|
const gchar *main_detail,
|
|
const gchar *default_detail)
|
|
{
|
|
GtkWidget *widget;
|
|
gint width, height;
|
|
gint x, y;
|
|
gint border_width;
|
|
GtkBorder default_border;
|
|
GtkBorder default_outside_border;
|
|
gboolean interior_focus;
|
|
gint focus_width;
|
|
gint focus_pad;
|
|
|
|
if (GTK_WIDGET_DRAWABLE (button))
|
|
{
|
|
widget = GTK_WIDGET (button);
|
|
border_width = GTK_CONTAINER (widget)->border_width;
|
|
|
|
gtk_button_get_props (button, &default_border, &default_outside_border, &interior_focus);
|
|
gtk_widget_style_get (GTK_WIDGET (widget),
|
|
"focus-line-width", &focus_width,
|
|
"focus-padding", &focus_pad,
|
|
NULL);
|
|
|
|
x = widget->allocation.x + border_width;
|
|
y = widget->allocation.y + border_width;
|
|
width = widget->allocation.width - border_width * 2;
|
|
height = widget->allocation.height - border_width * 2;
|
|
|
|
if (GTK_WIDGET_HAS_DEFAULT (widget) &&
|
|
GTK_BUTTON (widget)->relief == GTK_RELIEF_NORMAL)
|
|
{
|
|
gtk_paint_box (widget->style, widget->window,
|
|
GTK_STATE_NORMAL, GTK_SHADOW_IN,
|
|
area, widget, "buttondefault",
|
|
x, y, width, height);
|
|
|
|
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_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;
|
|
}
|
|
|
|
if (!interior_focus && GTK_WIDGET_HAS_FOCUS (widget))
|
|
{
|
|
x += focus_width + focus_pad;
|
|
y += focus_width + focus_pad;
|
|
width -= 2 * (focus_width + focus_pad);
|
|
height -= 2 * (focus_width + focus_pad);
|
|
}
|
|
|
|
if (button->relief != GTK_RELIEF_NONE || button->depressed ||
|
|
GTK_WIDGET_STATE(widget) == GTK_STATE_PRELIGHT)
|
|
gtk_paint_box (widget->style, widget->window,
|
|
state_type,
|
|
shadow_type, area, widget, "button",
|
|
x, y, width, height);
|
|
|
|
if (GTK_WIDGET_HAS_FOCUS (widget))
|
|
{
|
|
if (interior_focus)
|
|
{
|
|
x += widget->style->xthickness + focus_pad;
|
|
y += widget->style->ythickness + focus_pad;
|
|
width -= 2 * (widget->style->xthickness + focus_pad);
|
|
height -= 2 * (widget->style->ythickness + focus_pad);
|
|
}
|
|
else
|
|
{
|
|
x -= focus_width + focus_pad;
|
|
y -= focus_width + focus_pad;
|
|
width += 2 * (focus_width + focus_pad);
|
|
height += 2 * (focus_width + focus_pad);
|
|
}
|
|
|
|
gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
|
|
area, widget, "button",
|
|
x, y, width, height);
|
|
}
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gtk_button_expose (GtkWidget *widget,
|
|
GdkEventExpose *event)
|
|
{
|
|
if (GTK_WIDGET_DRAWABLE (widget))
|
|
{
|
|
GtkButton *button = GTK_BUTTON (widget);
|
|
|
|
_gtk_button_paint (button, &event->area,
|
|
GTK_WIDGET_STATE (widget),
|
|
button->depressed ? GTK_SHADOW_IN : GTK_SHADOW_OUT,
|
|
"button", "buttondefault");
|
|
|
|
(* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_button_button_press (GtkWidget *widget,
|
|
GdkEventButton *event)
|
|
{
|
|
GtkButton *button;
|
|
|
|
if (event->type == GDK_BUTTON_PRESS)
|
|
{
|
|
button = GTK_BUTTON (widget);
|
|
|
|
if (button->focus_on_click && !GTK_WIDGET_HAS_FOCUS (widget))
|
|
gtk_widget_grab_focus (widget);
|
|
|
|
if (event->button == 1)
|
|
gtk_button_pressed (button);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_button_button_release (GtkWidget *widget,
|
|
GdkEventButton *event)
|
|
{
|
|
GtkButton *button;
|
|
|
|
if (event->button == 1)
|
|
{
|
|
button = GTK_BUTTON (widget);
|
|
gtk_button_released (button);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_button_key_release (GtkWidget *widget,
|
|
GdkEventKey *event)
|
|
{
|
|
GtkButton *button = GTK_BUTTON (widget);
|
|
|
|
if (button->activate_timeout)
|
|
{
|
|
gtk_button_finish_activate (button, TRUE);
|
|
return TRUE;
|
|
}
|
|
else if (GTK_WIDGET_CLASS (parent_class)->key_release_event)
|
|
return GTK_WIDGET_CLASS (parent_class)->key_release_event (widget, event);
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_button_enter_notify (GtkWidget *widget,
|
|
GdkEventCrossing *event)
|
|
{
|
|
GtkButton *button;
|
|
GtkWidget *event_widget;
|
|
|
|
button = GTK_BUTTON (widget);
|
|
event_widget = gtk_get_event_widget ((GdkEvent*) event);
|
|
|
|
if ((event_widget == widget) &&
|
|
(event->detail != GDK_NOTIFY_INFERIOR))
|
|
{
|
|
button->in_button = TRUE;
|
|
gtk_button_enter (button);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_button_leave_notify (GtkWidget *widget,
|
|
GdkEventCrossing *event)
|
|
{
|
|
GtkButton *button;
|
|
GtkWidget *event_widget;
|
|
|
|
button = GTK_BUTTON (widget);
|
|
event_widget = gtk_get_event_widget ((GdkEvent*) event);
|
|
|
|
if ((event_widget == widget) &&
|
|
(event->detail != GDK_NOTIFY_INFERIOR))
|
|
{
|
|
button->in_button = FALSE;
|
|
gtk_button_leave (button);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_real_button_pressed (GtkButton *button)
|
|
{
|
|
if (button->activate_timeout)
|
|
return;
|
|
|
|
button->button_down = TRUE;
|
|
gtk_button_update_state (button);
|
|
}
|
|
|
|
static void
|
|
gtk_real_button_released (GtkButton *button)
|
|
{
|
|
if (button->button_down)
|
|
{
|
|
button->button_down = FALSE;
|
|
|
|
if (button->activate_timeout)
|
|
return;
|
|
|
|
if (button->in_button)
|
|
gtk_button_clicked (button);
|
|
|
|
gtk_button_update_state (button);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
button_activate_timeout (gpointer data)
|
|
{
|
|
GDK_THREADS_ENTER ();
|
|
|
|
gtk_button_finish_activate (data, TRUE);
|
|
|
|
GDK_THREADS_LEAVE ();
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_real_button_activate (GtkButton *button)
|
|
{
|
|
GtkWidget *widget = GTK_WIDGET (button);
|
|
|
|
if (GTK_WIDGET_REALIZED (button) && !button->activate_timeout)
|
|
{
|
|
if (gdk_keyboard_grab (button->event_window, TRUE,
|
|
gtk_get_current_event_time ()) == 0)
|
|
{
|
|
gtk_grab_add (widget);
|
|
|
|
button->activate_timeout = g_timeout_add (ACTIVATE_TIMEOUT,
|
|
button_activate_timeout,
|
|
button);
|
|
button->button_down = TRUE;
|
|
gtk_button_update_state (button);
|
|
gtk_widget_queue_draw (GTK_WIDGET (button));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_button_finish_activate (GtkButton *button,
|
|
gboolean do_it)
|
|
{
|
|
GtkWidget *widget = GTK_WIDGET (button);
|
|
|
|
g_source_remove (button->activate_timeout);
|
|
button->activate_timeout = 0;
|
|
|
|
gdk_display_keyboard_ungrab (gtk_widget_get_display (widget),
|
|
gtk_get_current_event_time ());
|
|
gtk_grab_remove (widget);
|
|
|
|
button->button_down = FALSE;
|
|
|
|
gtk_button_update_state (button);
|
|
gtk_widget_queue_draw (GTK_WIDGET (button));
|
|
|
|
if (do_it)
|
|
gtk_button_clicked (button);
|
|
}
|
|
|
|
/**
|
|
* 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)
|
|
{
|
|
gchar *new_label;
|
|
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
new_label = g_strdup (label);
|
|
g_free (button->label_text);
|
|
button->label_text = new_label;
|
|
|
|
gtk_button_construct_child (button);
|
|
|
|
g_object_notify (G_OBJECT (button), "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.
|
|
*
|
|
* Return value: The text of the label widget. This string is owned
|
|
* by the widget and must not be modified or freed.
|
|
**/
|
|
G_CONST_RETURN gchar *
|
|
gtk_button_get_label (GtkButton *button)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_BUTTON (button), NULL);
|
|
|
|
return button->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)
|
|
{
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
use_underline = use_underline != FALSE;
|
|
|
|
if (use_underline != button->use_underline)
|
|
{
|
|
button->use_underline = use_underline;
|
|
|
|
gtk_button_construct_child (button);
|
|
|
|
g_object_notify (G_OBJECT (button), "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 ().
|
|
*
|
|
* Return value: %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->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.
|
|
*/
|
|
void
|
|
gtk_button_set_use_stock (GtkButton *button,
|
|
gboolean use_stock)
|
|
{
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
use_stock = use_stock != FALSE;
|
|
|
|
if (use_stock != button->use_stock)
|
|
{
|
|
button->use_stock = use_stock;
|
|
|
|
gtk_button_construct_child (button);
|
|
|
|
g_object_notify (G_OBJECT (button), "use_stock");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_button_get_use_stock:
|
|
* @button: a #GtkButton
|
|
*
|
|
* Returns whether the button label is a stock item.
|
|
*
|
|
* Return value: %TRUE if the button label is used to
|
|
* select a stock item instead of being
|
|
* used directly as the label text.
|
|
*/
|
|
gboolean
|
|
gtk_button_get_use_stock (GtkButton *button)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_BUTTON (button), FALSE);
|
|
|
|
return button->use_stock;
|
|
}
|
|
|
|
/**
|
|
* gtk_button_set_focus_on_click:
|
|
* @button: a #GtkButton
|
|
* @focus_on_click: whether the mouse 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)
|
|
{
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
focus_on_click = focus_on_click != FALSE;
|
|
|
|
if (button->focus_on_click != focus_on_click)
|
|
{
|
|
button->focus_on_click = focus_on_click;
|
|
|
|
g_object_notify (G_OBJECT (button), "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().
|
|
*
|
|
* Return value: %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->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 #GtkAligment.
|
|
*
|
|
* Since: 2.4
|
|
*/
|
|
void
|
|
gtk_button_set_alignment (GtkButton *button,
|
|
gfloat xalign,
|
|
gfloat yalign)
|
|
{
|
|
GtkButtonPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
priv = GTK_BUTTON_GET_PRIVATE (button);
|
|
|
|
priv->xalign = xalign;
|
|
priv->yalign = yalign;
|
|
priv->align_set = 1;
|
|
|
|
maybe_set_alignment (button, GTK_BIN (button)->child);
|
|
|
|
g_object_freeze_notify (G_OBJECT (button));
|
|
g_object_notify (G_OBJECT (button), "xalign");
|
|
g_object_notify (G_OBJECT (button), "yalign");
|
|
g_object_thaw_notify (G_OBJECT (button));
|
|
}
|
|
|
|
/**
|
|
* gtk_button_get_alignment:
|
|
* @button: a #GtkButton
|
|
* @xalign: return location for horizontal alignment
|
|
* @yalign: return location for vertical alignment
|
|
*
|
|
* Gets the alignment of the child in the button.
|
|
*
|
|
* Since: 2.4
|
|
*/
|
|
void
|
|
gtk_button_get_alignment (GtkButton *button,
|
|
gfloat *xalign,
|
|
gfloat *yalign)
|
|
{
|
|
GtkButtonPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_BUTTON (button));
|
|
|
|
priv = GTK_BUTTON_GET_PRIVATE (button);
|
|
|
|
if (xalign)
|
|
*xalign = priv->xalign;
|
|
|
|
if (yalign)
|
|
*yalign = priv->yalign;
|
|
}
|
|
|
|
/**
|
|
* _gtk_button_set_depressed:
|
|
* @button: a #GtkButton
|
|
* @depressed: %TRUE if the button should be drawn with a recessed shadow.
|
|
*
|
|
* Sets whether the button is currently drawn as down or not. This is
|
|
* purely a visual setting, and is meant only for use by derived widgets
|
|
* such as #GtkToggleButton.
|
|
**/
|
|
void
|
|
_gtk_button_set_depressed (GtkButton *button,
|
|
gboolean depressed)
|
|
{
|
|
GtkWidget *widget = GTK_WIDGET (button);
|
|
|
|
depressed = depressed != FALSE;
|
|
|
|
if (depressed != button->depressed)
|
|
{
|
|
button->depressed = depressed;
|
|
gtk_widget_queue_resize (widget);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_button_update_state (GtkButton *button)
|
|
{
|
|
gboolean depressed;
|
|
GtkStateType new_state;
|
|
|
|
if (button->activate_timeout)
|
|
depressed = button->depress_on_activate;
|
|
else
|
|
depressed = button->in_button && button->button_down;
|
|
|
|
if (button->in_button && (!button->button_down || !depressed))
|
|
new_state = GTK_STATE_PRELIGHT;
|
|
else
|
|
new_state = depressed ? GTK_STATE_ACTIVE : GTK_STATE_NORMAL;
|
|
|
|
_gtk_button_set_depressed (button, depressed);
|
|
gtk_widget_set_state (GTK_WIDGET (button), new_state);
|
|
}
|
|
|
|
static void
|
|
show_image_change_notify (GtkButton *button)
|
|
{
|
|
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
|
|
|
|
if (priv->image)
|
|
g_object_set (priv->image, "visible", show_image (button), NULL);
|
|
}
|
|
|
|
static void
|
|
gtk_button_screen_changed (GtkWidget *widget,
|
|
GdkScreen *previous_screen)
|
|
{
|
|
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (widget);
|
|
GtkSettings *settings;
|
|
|
|
if (gtk_widget_has_screen (widget))
|
|
settings = gtk_widget_get_settings (widget);
|
|
else
|
|
settings = NULL;
|
|
|
|
if (settings == priv->settings)
|
|
return;
|
|
|
|
if (priv->settings)
|
|
{
|
|
g_signal_handler_disconnect (priv->settings, priv->show_image_connection);
|
|
g_object_unref (priv->settings);
|
|
}
|
|
|
|
if (settings)
|
|
{
|
|
priv->show_image_connection =
|
|
g_signal_connect_swapped (settings,
|
|
"notify::gtk-button-images",
|
|
G_CALLBACK (show_image_change_notify),
|
|
widget);
|
|
|
|
g_object_ref (settings);
|
|
priv->settings = settings;
|
|
}
|
|
else
|
|
priv->settings = NULL;
|
|
|
|
show_image_change_notify (GTK_BUTTON (widget));
|
|
}
|