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gtk2/gtk/gtkbutton.c
Matthias Clasen bb72b647f6 i Bug 560228 – Add "action-controller" property to GtkWidgetClass 
Rework the way actions and proxies interact, to make the
        interaction less ad hoc, more extensible, and better suited
        for support in GUI builders like glade.

        To be used as a proxy, a widget must now implement the
        GtkActivatable interface, and GtkActivatable implementations
        are responsible for syncing their appearance with the action
        and for activating the action.

        All the widgets that are commonly used as proxies implement
        GtkActivatable now.

        Patch by Tristan van Berkom.

        * gtk/gtkactivatable.[hc]: The GtkActivatable interface.

        * gtk/gtkbutton.c:
        * gtk/gtktogglebutton.c:
        * gtk/gtktoolitem.c:
        * gtk/gtktoolbutton.c:
        * gtk/gtktoggletoolbutton.c:
        * gtk/gtkmenuitem.c:
        * gtk/gtkcheckmenuitem.c:
        * gtk/gtkimagemenuitem.c:
        * gtk/gtkradiomenuitem.c:
        * gtk/gtkrecentchooserprivate.h:
        * gtk/gtkrecentchooser.c:
        * gtk/gtkrecentchooserdefault.c:
        * gtk/gtkrecentchoosermenu.c: Implement GtkActivatable.
        * gtk/gtkaction.[hc]: Move appearance synchronization to
        GtkActivatable implementations.

        * gtk/gtkradioaction.c:
        * gtk/gtkrecentaction.c:
        * gtk/gtktoggleaction.c:
        * gtk/gtkactiongroup.c: Adapt.

        * gtk/gtk.h: Include gtkactivatable.h
        * gtk/gtk.symbols: Add new functions


svn path=/trunk/; revision=22195
2009-01-23 15:15:28 +00:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2001. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <string.h>
#include "gtkalignment.h"
#include "gtkbutton.h"
#include "gtklabel.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkimage.h"
#include "gtkhbox.h"
#include "gtkvbox.h"
#include "gtkstock.h"
#include "gtkiconfactory.h"
#include "gtkactivatable.h"
#include "gtkprivate.h"
#include "gtkintl.h"
#include "gtkalias.h"
static const GtkBorder default_default_border = { 1, 1, 1, 1 };
static const GtkBorder default_default_outside_border = { 0, 0, 0, 0 };
static const GtkBorder default_inner_border = { 1, 1, 1, 1 };
/* Time out before giving up on getting a key release when animating
* the close button.
*/
#define ACTIVATE_TIMEOUT 250
enum {
PRESSED,
RELEASED,
CLICKED,
ENTER,
LEAVE,
ACTIVATE,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_LABEL,
PROP_IMAGE,
PROP_RELIEF,
PROP_USE_UNDERLINE,
PROP_USE_STOCK,
PROP_FOCUS_ON_CLICK,
PROP_XALIGN,
PROP_YALIGN,
PROP_IMAGE_POSITION,
/* activatable properties */
PROP_ACTIVATABLE_RELATED_ACTION,
PROP_ACTIVATABLE_USE_ACTION_APPEARANCE
};
#define GTK_BUTTON_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_TYPE_BUTTON, GtkButtonPrivate))
typedef struct _GtkButtonPrivate GtkButtonPrivate;
struct _GtkButtonPrivate
{
gfloat xalign;
gfloat yalign;
GtkWidget *image;
guint align_set : 1;
guint image_is_stock : 1;
guint has_grab : 1;
guint use_action_appearance : 1;
guint32 grab_time;
GtkPositionType image_position;
GtkAction *action;
};
static void gtk_button_destroy (GtkObject *object);
static void gtk_button_dispose (GObject *object);
static void gtk_button_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_button_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_button_screen_changed (GtkWidget *widget,
GdkScreen *previous_screen);
static void gtk_button_realize (GtkWidget *widget);
static void gtk_button_unrealize (GtkWidget *widget);
static void gtk_button_map (GtkWidget *widget);
static void gtk_button_unmap (GtkWidget *widget);
static void gtk_button_style_set (GtkWidget *widget,
GtkStyle *prev_style);
static void gtk_button_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_button_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gint gtk_button_expose (GtkWidget *widget,
GdkEventExpose *event);
static gint gtk_button_button_press (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_button_button_release (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_button_grab_broken (GtkWidget *widget,
GdkEventGrabBroken *event);
static gint gtk_button_key_release (GtkWidget *widget,
GdkEventKey *event);
static gint gtk_button_enter_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gint gtk_button_leave_notify (GtkWidget *widget,
GdkEventCrossing *event);
static void gtk_real_button_pressed (GtkButton *button);
static void gtk_real_button_released (GtkButton *button);
static void gtk_real_button_clicked (GtkButton *button);
static void gtk_real_button_activate (GtkButton *button);
static void gtk_button_update_state (GtkButton *button);
static void gtk_button_add (GtkContainer *container,
GtkWidget *widget);
static GType gtk_button_child_type (GtkContainer *container);
static void gtk_button_finish_activate (GtkButton *button,
gboolean do_it);
static GObject* gtk_button_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_params);
static void gtk_button_construct_child (GtkButton *button);
static void gtk_button_state_changed (GtkWidget *widget,
GtkStateType previous_state);
static void gtk_button_grab_notify (GtkWidget *widget,
gboolean was_grabbed);
static void gtk_button_activatable_interface_init (GtkActivatableIface *iface);
static void gtk_button_activatable_update (GtkActivatable *activatable,
GtkAction *action,
const gchar *property_name);
static void gtk_button_activatable_reset (GtkActivatable *activatable,
GtkAction *action);
static void gtk_button_set_related_action (GtkButton *button,
GtkAction *action);
static void gtk_button_set_use_action_appearance (GtkButton *button,
gboolean use_appearance);
static guint button_signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE_WITH_CODE (GtkButton, gtk_button, GTK_TYPE_BIN,
G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTIVATABLE,
gtk_button_activatable_interface_init))
static void
gtk_button_class_init (GtkButtonClass *klass)
{
GObjectClass *gobject_class;
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
gobject_class = G_OBJECT_CLASS (klass);
object_class = (GtkObjectClass*) klass;
widget_class = (GtkWidgetClass*) klass;
container_class = (GtkContainerClass*) klass;
gobject_class->constructor = gtk_button_constructor;
gobject_class->dispose = gtk_button_dispose;
gobject_class->set_property = gtk_button_set_property;
gobject_class->get_property = gtk_button_get_property;
object_class->destroy = gtk_button_destroy;
widget_class->screen_changed = gtk_button_screen_changed;
widget_class->realize = gtk_button_realize;
widget_class->unrealize = gtk_button_unrealize;
widget_class->map = gtk_button_map;
widget_class->unmap = gtk_button_unmap;
widget_class->style_set = gtk_button_style_set;
widget_class->size_request = gtk_button_size_request;
widget_class->size_allocate = gtk_button_size_allocate;
widget_class->expose_event = gtk_button_expose;
widget_class->button_press_event = gtk_button_button_press;
widget_class->button_release_event = gtk_button_button_release;
widget_class->grab_broken_event = gtk_button_grab_broken;
widget_class->key_release_event = gtk_button_key_release;
widget_class->enter_notify_event = gtk_button_enter_notify;
widget_class->leave_notify_event = gtk_button_leave_notify;
widget_class->state_changed = gtk_button_state_changed;
widget_class->grab_notify = gtk_button_grab_notify;
container_class->child_type = gtk_button_child_type;
container_class->add = gtk_button_add;
klass->pressed = gtk_real_button_pressed;
klass->released = gtk_real_button_released;
klass->clicked = gtk_real_button_clicked;
klass->enter = gtk_button_update_state;
klass->leave = gtk_button_update_state;
klass->activate = gtk_real_button_activate;
g_object_class_install_property (gobject_class,
PROP_LABEL,
g_param_spec_string ("label",
P_("Label"),
P_("Text of the label widget inside the button, if the button contains a label widget"),
NULL,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
g_object_class_install_property (gobject_class,
PROP_USE_UNDERLINE,
g_param_spec_boolean ("use-underline",
P_("Use underline"),
P_("If set, an underline in the text indicates the next character should be used for the mnemonic accelerator key"),
FALSE,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
g_object_class_install_property (gobject_class,
PROP_USE_STOCK,
g_param_spec_boolean ("use-stock",
P_("Use stock"),
P_("If set, the label is used to pick a stock item instead of being displayed"),
FALSE,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
g_object_class_install_property (gobject_class,
PROP_FOCUS_ON_CLICK,
g_param_spec_boolean ("focus-on-click",
P_("Focus on click"),
P_("Whether the button grabs focus when it is clicked with the mouse"),
TRUE,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_RELIEF,
g_param_spec_enum ("relief",
P_("Border relief"),
P_("The border relief style"),
GTK_TYPE_RELIEF_STYLE,
GTK_RELIEF_NORMAL,
GTK_PARAM_READWRITE));
/**
* GtkButton:xalign:
*
* If the child of the button is a #GtkMisc or #GtkAlignment, this property
* can be used to control it's horizontal alignment. 0.0 is left aligned,
* 1.0 is right aligned.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_XALIGN,
g_param_spec_float("xalign",
P_("Horizontal alignment for child"),
P_("Horizontal position of child in available space. 0.0 is left aligned, 1.0 is right aligned"),
0.0,
1.0,
0.5,
GTK_PARAM_READWRITE));
/**
* GtkButton:yalign:
*
* If the child of the button is a #GtkMisc or #GtkAlignment, this property
* can be used to control it's vertical alignment. 0.0 is top aligned,
* 1.0 is bottom aligned.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_YALIGN,
g_param_spec_float("yalign",
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,
GTK_PARAM_READWRITE));
/**
* GtkButton::image:
*
* The child widget to appear next to the button text.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_IMAGE,
g_param_spec_object ("image",
P_("Image widget"),
P_("Child widget to appear next to the button text"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE));
/**
* GtkButton:image-position:
*
* The position of the image relative to the text inside the button.
*
* Since: 2.10
*/
g_object_class_install_property (gobject_class,
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_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");
/**
* 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 (object_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 (object_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 (object_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 (object_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 (object_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 (object_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];
gtk_widget_class_install_style_property (widget_class,
g_param_spec_boxed ("default-border",
P_("Default Spacing"),
P_("Extra space to add for CAN_DEFAULT buttons"),
GTK_TYPE_BORDER,
GTK_PARAM_READABLE));
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 CAN_DEFAULT buttons that is always drawn outside the border"),
GTK_TYPE_BORDER,
GTK_PARAM_READABLE));
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));
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));
/**
* 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));
/**
* GtkButton:inner-border:
*
* Sets the border between the button edges and child.
*
* Since: 2.10
*/
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));
/**
* 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));
/**
* GtkSettings::gtk-button-images:
*
* Whether images should be shown on buttons
*
* Since: 2.4
*/
gtk_settings_install_property (g_param_spec_boolean ("gtk-button-images",
P_("Show button images"),
P_("Whether images should be shown on buttons"),
TRUE,
GTK_PARAM_READWRITE));
g_type_class_add_private (gobject_class, sizeof (GtkButtonPrivate));
}
static void
gtk_button_init (GtkButton *button)
{
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_FOCUS | GTK_RECEIVES_DEFAULT);
GTK_WIDGET_SET_FLAGS (button, GTK_NO_WINDOW);
button->label_text = NULL;
button->constructed = FALSE;
button->in_button = FALSE;
button->button_down = FALSE;
button->relief = GTK_RELIEF_NORMAL;
button->use_stock = FALSE;
button->use_underline = FALSE;
button->depressed = FALSE;
button->depress_on_activate = TRUE;
button->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;
}
static void
gtk_button_destroy (GtkObject *object)
{
GtkButton *button = GTK_BUTTON (object);
if (button->label_text)
{
g_free (button->label_text);
button->label_text = NULL;
}
GTK_OBJECT_CLASS (gtk_button_parent_class)->destroy (object);
}
static GObject*
gtk_button_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_params)
{
GObject *object;
GtkButton *button;
object = G_OBJECT_CLASS (gtk_button_parent_class)->constructor (type,
n_construct_properties,
construct_params);
button = GTK_BUTTON (object);
button->constructed = TRUE;
if (button->label_text != NULL)
gtk_button_construct_child (button);
return object;
}
static GType
gtk_button_child_type (GtkContainer *container)
{
if (!GTK_BIN (container)->child)
return GTK_TYPE_WIDGET;
else
return G_TYPE_NONE;
}
static void
maybe_set_alignment (GtkButton *button,
GtkWidget *widget)
{
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
if (GTK_IS_MISC (widget))
{
GtkMisc *misc = GTK_MISC (widget);
if (priv->align_set)
gtk_misc_set_alignment (misc, priv->xalign, priv->yalign);
}
else if (GTK_IS_ALIGNMENT (widget))
{
GtkAlignment *alignment = GTK_ALIGNMENT (widget);
if (priv->align_set)
gtk_alignment_set (alignment, priv->xalign, priv->yalign,
alignment->xscale, alignment->yscale);
}
}
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 = GTK_BUTTON_GET_PRIVATE (button);
if (priv->action)
{
gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (button), NULL);
priv->action = NULL;
}
G_OBJECT_CLASS (gtk_button_parent_class)->dispose (object);
}
static void
gtk_button_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
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_IMAGE:
gtk_button_set_image (button, (GtkWidget *) g_value_get_object (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;
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;
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_IMAGE:
g_value_set_object (value, (GObject *)priv->image);
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;
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;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_button_activatable_interface_init (GtkActivatableIface *iface)
{
iface->update = gtk_button_activatable_update;
iface->reset = gtk_button_activatable_reset;
}
static void
activatable_update_stock_id (GtkButton *button,
GtkAction *action)
{
if (!gtk_button_get_use_stock (button))
return;
gtk_button_set_label (button, gtk_action_get_stock_id (action));
}
static void
activatable_update_short_label (GtkButton *button,
GtkAction *action)
{
GtkWidget *image;
if (gtk_button_get_use_stock (button))
return;
image = gtk_button_get_image (button);
/* Dont touch custom child... */
if (GTK_IS_IMAGE (image) ||
GTK_BIN (button)->child == NULL ||
GTK_IS_LABEL (GTK_BIN (button)->child))
{
gtk_button_set_label (button, gtk_action_get_short_label (action));
gtk_button_set_use_underline (button, TRUE);
}
}
static void
activatable_update_icon_name (GtkButton *button,
GtkAction *action)
{
GtkWidget *image;
if (gtk_button_get_use_stock (button))
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))
gtk_image_set_from_icon_name (GTK_IMAGE (image),
gtk_action_get_icon_name (action), GTK_ICON_SIZE_MENU);
}
static void
activatable_update_gicon (GtkButton *button,
GtkAction *action)
{
GtkWidget *image = gtk_button_get_image (button);
GIcon *icon = gtk_action_get_gicon (action);
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_activatable_update (GtkActivatable *activatable,
GtkAction *action,
const gchar *property_name)
{
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (activatable);
if (strcmp (property_name, "visible") == 0)
{
if (gtk_action_is_visible (action))
gtk_widget_show (GTK_WIDGET (activatable));
else
gtk_widget_hide (GTK_WIDGET (activatable));
}
else if (strcmp (property_name, "sensitive") == 0)
gtk_widget_set_sensitive (GTK_WIDGET (activatable), gtk_action_is_sensitive (action));
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_activatable_reset (GtkActivatable *activatable,
GtkAction *action)
{
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (activatable);
if (!action)
return;
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));
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);
}
}
static void
gtk_button_set_related_action (GtkButton *button,
GtkAction *action)
{
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
if (priv->action == action)
return;
gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (button), action);
priv->action = action;
}
static void
gtk_button_set_use_action_appearance (GtkButton *button,
gboolean use_appearance)
{
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
if (priv->use_action_appearance != use_appearance)
{
priv->use_action_appearance = use_appearance;
gtk_activatable_reset (GTK_ACTIVATABLE (button), priv->action);
}
}
GtkWidget*
gtk_button_new (void)
{
return g_object_new (GTK_TYPE_BUTTON, NULL);
}
static gboolean
show_image (GtkButton *button)
{
gboolean show;
if (button->label_text)
{
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 = GTK_BUTTON_GET_PRIVATE (button);
GtkStockItem item;
GtkWidget *label;
GtkWidget *box;
GtkWidget *align;
GtkWidget *image = NULL;
gchar *label_text = NULL;
gint image_spacing;
if (!button->constructed)
return;
if (!button->label_text && !priv->image)
return;
gtk_widget_style_get (GTK_WIDGET (button),
"image-spacing", &image_spacing,
NULL);
if (priv->image && !priv->image_is_stock)
{
image = g_object_ref (priv->image);
if (image->parent)
gtk_container_remove (GTK_CONTAINER (image->parent), image);
}
priv->image = NULL;
if (GTK_BIN (button)->child)
gtk_container_remove (GTK_CONTAINER (button),
GTK_BIN (button)->child);
if (button->use_stock &&
button->label_text &&
gtk_stock_lookup (button->label_text, &item))
{
if (!image)
image = g_object_ref (gtk_image_new_from_stock (button->label_text, GTK_ICON_SIZE_BUTTON));
label_text = item.label;
}
else
label_text = button->label_text;
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_hbox_new (FALSE, image_spacing);
else
box = gtk_vbox_new (FALSE, image_spacing);
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);
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)
{
label = gtk_label_new_with_mnemonic (label_text);
gtk_label_set_mnemonic_widget (GTK_LABEL (label),
GTK_WIDGET (button));
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);
}
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 (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 (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 (gtk_button_parent_class)->unrealize (widget);
}
static void
gtk_button_map (GtkWidget *widget)
{
GtkButton *button = GTK_BUTTON (widget);
GTK_WIDGET_CLASS (gtk_button_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);
if (button->event_window)
gdk_window_hide (button->event_window);
GTK_WIDGET_CLASS (gtk_button_parent_class)->unmap (widget);
}
static void
gtk_button_update_image_spacing (GtkButton *button)
{
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
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 (!button->constructed || !priv->image)
return;
child = GTK_BIN (button)->child;
if (GTK_IS_ALIGNMENT (child))
{
child = GTK_BIN (child)->child;
if (GTK_IS_BOX (child))
{
gtk_widget_style_get (GTK_WIDGET (button),
"image-spacing", &spacing,
NULL);
gtk_box_set_spacing (GTK_BOX (child), spacing);
}
}
}
static void
gtk_button_style_set (GtkWidget *widget,
GtkStyle *prev_style)
{
gtk_button_update_image_spacing (GTK_BUTTON (widget));
}
static void
gtk_button_get_props (GtkButton *button,
GtkBorder *default_border,
GtkBorder *default_outside_border,
GtkBorder *inner_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;
gtk_border_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;
gtk_border_free (tmp_border);
}
else
*default_outside_border = default_default_outside_border;
}
if (inner_border)
{
gtk_widget_style_get (widget, "inner-border", &tmp_border, NULL);
if (tmp_border)
{
*inner_border = *tmp_border;
gtk_border_free (tmp_border);
}
else
*inner_border = default_inner_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;
GtkBorder inner_border;
gint focus_width;
gint focus_pad;
gtk_button_get_props (button, &default_border, NULL, &inner_border, NULL);
gtk_widget_style_get (GTK_WIDGET (widget),
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
NULL);
requisition->width = ((GTK_CONTAINER (widget)->border_width +
GTK_WIDGET (widget)->style->xthickness) * 2 +
inner_border.left + inner_border.right);
requisition->height = ((GTK_CONTAINER (widget)->border_width +
GTK_WIDGET (widget)->style->ythickness) * 2 +
inner_border.top + inner_border.bottom);
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;
GtkBorder inner_border;
gint focus_width;
gint focus_pad;
gtk_button_get_props (button, &default_border, NULL, &inner_border, 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 + inner_border.left + xthickness;
child_allocation.y = widget->allocation.y + border_width + inner_border.top + ythickness;
child_allocation.width = MAX (1, widget->allocation.width -
xthickness * 2 -
inner_border.left -
inner_border.right -
border_width * 2);
child_allocation.height = MAX (1, widget->allocation.height -
ythickness * 2 -
inner_border.top -
inner_border.bottom -
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);
}
if (GTK_WIDGET_CAN_FOCUS (button))
{
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,
const 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, NULL, &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))
{
gint child_displacement_x;
gint child_displacement_y;
gboolean displace_focus;
gtk_widget_style_get (GTK_WIDGET (widget),
"child-displacement-y", &child_displacement_y,
"child-displacement-x", &child_displacement_x,
"displace-focus", &displace_focus,
NULL);
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);
}
if (button->depressed && displace_focus)
{
x += child_displacement_x;
y += child_displacement_y;
}
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 (gtk_button_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_grab_broken (GtkWidget *widget,
GdkEventGrabBroken *event)
{
GtkButton *button = GTK_BUTTON (widget);
gboolean save_in;
/* Simulate a button release without the pointer in the button */
if (button->button_down)
{
save_in = button->in_button;
button->in_button = FALSE;
gtk_button_released (button);
if (save_in != button->in_button)
{
button->in_button = save_in;
gtk_button_update_state (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 (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;
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) &&
(GTK_WIDGET_SENSITIVE (event_widget)))
{
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 void
gtk_real_button_clicked (GtkButton *button)
{
GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
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;
guint32 time;
priv = GTK_BUTTON_GET_PRIVATE (button);
if (GTK_WIDGET_REALIZED (button) && !button->activate_timeout)
{
time = gtk_get_current_event_time ();
if (gdk_keyboard_grab (button->event_window, TRUE, time) ==
GDK_GRAB_SUCCESS)
{
priv->has_grab = TRUE;
priv->grab_time = time;
}
gtk_grab_add (widget);
button->activate_timeout = gdk_threads_add_timeout (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);
GtkButtonPrivate *priv;
priv = GTK_BUTTON_GET_PRIVATE (button);
g_source_remove (button->activate_timeout);
button->activate_timeout = 0;
if (priv->has_grab)
{
gdk_display_keyboard_ungrab (gtk_widget_get_display (widget),
priv->grab_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 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)
{
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)
{
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)
{
GtkSettings *settings;
guint show_image_connection;
if (!gtk_widget_has_screen (widget))
return;
settings = gtk_widget_get_settings (widget);
show_image_connection =
GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (settings),
"gtk-button-connection"));
if (show_image_connection)
return;
show_image_connection =
g_signal_connect (settings, "notify::gtk-button-images",
G_CALLBACK (gtk_button_setting_changed), NULL);
g_object_set_data (G_OBJECT (settings),
I_("gtk-button-connection"),
GUINT_TO_POINTER (show_image_connection));
show_image_change_notify (GTK_BUTTON (widget));
}
static void
gtk_button_state_changed (GtkWidget *widget,
GtkStateType previous_state)
{
GtkButton *button = GTK_BUTTON (widget);
if (!GTK_WIDGET_IS_SENSITIVE (widget))
{
button->in_button = FALSE;
gtk_real_button_released (button);
}
}
static void
gtk_button_grab_notify (GtkWidget *widget,
gboolean was_grabbed)
{
GtkButton *button = GTK_BUTTON (widget);
gboolean save_in;
if (!was_grabbed)
{
save_in = button->in_button;
button->in_button = FALSE;
gtk_real_button_released (button);
if (save_in != button->in_button)
{
button->in_button = save_in;
gtk_button_update_state (button);
}
}
}
/**
* 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. Note that
* it depends on the #GtkSettings:gtk-button-images setting whether the
* image will be displayed or not, 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;
g_return_if_fail (GTK_IS_BUTTON (button));
g_return_if_fail (image == NULL || GTK_IS_WIDGET (image));
priv = GTK_BUTTON_GET_PRIVATE (button);
if (priv->image && priv->image->parent)
gtk_container_remove (GTK_CONTAINER (priv->image->parent), priv->image);
priv->image = image;
priv->image_is_stock = (image == NULL);
gtk_button_construct_child (button);
g_object_notify (G_OBJECT (button), "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().
*
* Return value: a #GtkWidget or %NULL in case there is no image
*
* Since: 2.6
*/
GtkWidget *
gtk_button_get_image (GtkButton *button)
{
GtkButtonPrivate *priv;
g_return_val_if_fail (GTK_IS_BUTTON (button), NULL);
priv = GTK_BUTTON_GET_PRIVATE (button);
return 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 = GTK_BUTTON_GET_PRIVATE (button);
if (priv->image_position != position)
{
priv->image_position = position;
gtk_button_construct_child (button);
g_object_notify (G_OBJECT (button), "image-position");
}
}
/**
* gtk_button_get_image_position:
* @button: a #GtkButton
*
* Gets the position of the image relative to the text
* inside the button.
*
* Return value: the position
*
* Since: 2.10
*/
GtkPositionType
gtk_button_get_image_position (GtkButton *button)
{
GtkButtonPrivate *priv;
g_return_val_if_fail (GTK_IS_BUTTON (button), GTK_POS_LEFT);
priv = GTK_BUTTON_GET_PRIVATE (button);
return priv->image_position;
}
#define __GTK_BUTTON_C__
#include "gtkaliasdef.c"
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