forked from AuroraMiddleware/gtk
544 lines
16 KiB
C
544 lines
16 KiB
C
/* 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, see <http://www.gnu.org/licenses/>.
|
||
*/
|
||
|
||
/*
|
||
* Modified by the GTK+ Team and others 1997-2000. 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 "gtktogglebutton.h"
|
||
|
||
#include "gtkbuttonprivate.h"
|
||
#include "gtktogglebuttonprivate.h"
|
||
#include "gtklabel.h"
|
||
#include "gtkmain.h"
|
||
#include "gtkmarshalers.h"
|
||
#include "gtkprivate.h"
|
||
#include "gtkintl.h"
|
||
#include "a11y/gtktogglebuttonaccessible.h"
|
||
|
||
|
||
/**
|
||
* SECTION:gtktogglebutton
|
||
* @Short_description: Create buttons which retain their state
|
||
* @Title: GtkToggleButton
|
||
* @See_also: #GtkButton, #GtkCheckButton, #GtkCheckMenuItem
|
||
*
|
||
* A #GtkToggleButton is a #GtkButton which will remain “pressed-in” when
|
||
* clicked. Clicking again will cause the toggle button to return to its
|
||
* normal state.
|
||
*
|
||
* A toggle button is created by calling either gtk_toggle_button_new() or
|
||
* gtk_toggle_button_new_with_label(). If using the former, it is advisable to
|
||
* pack a widget, (such as a #GtkLabel and/or a #GtkImage), into the toggle
|
||
* button’s container. (See #GtkButton for more information).
|
||
*
|
||
* The state of a #GtkToggleButton can be set specifically using
|
||
* gtk_toggle_button_set_active(), and retrieved using
|
||
* gtk_toggle_button_get_active().
|
||
*
|
||
* To simply switch the state of a toggle button, use gtk_toggle_button_toggled().
|
||
*
|
||
* # CSS nodes
|
||
*
|
||
* GtkToggleButton has a single CSS node with name button. To differentiate
|
||
* it from a plain #GtkButton, it gets the .toggle style class.
|
||
*
|
||
* ## Creating two #GtkToggleButton widgets.
|
||
*
|
||
* |[<!-- language="C" -->
|
||
* void make_toggles (void) {
|
||
* GtkWidget *dialog, *toggle1, *toggle2;
|
||
* GtkWidget *content_area;
|
||
* const char *text;
|
||
*
|
||
* dialog = gtk_dialog_new (text);
|
||
* content_area = gtk_dialog_get_content_area ();
|
||
*
|
||
* text = "Hi, i’m a toggle button.";
|
||
* toggle1 = gtk_toggle_button_new_with_label (text);
|
||
*
|
||
* // Makes this toggle button invisible
|
||
* gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (toggle1),
|
||
* TRUE);
|
||
*
|
||
* g_signal_connect (toggle1, "toggled",
|
||
* G_CALLBACK (output_state),
|
||
* NULL);
|
||
* gtk_box_pack_start (GTK_BOX (content_area),
|
||
* toggle1, FALSE, FALSE, 2);
|
||
*
|
||
* text = "Hi, i’m a toggle button.";
|
||
* toggle2 = gtk_toggle_button_new_with_label (text);
|
||
* gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (toggle2),
|
||
* FALSE);
|
||
* g_signal_connect (toggle2, "toggled",
|
||
* G_CALLBACK (output_state),
|
||
* NULL);
|
||
* gtk_box_pack_start (GTK_BOX (content_area),
|
||
* toggle2, FALSE, FALSE, 2);
|
||
*
|
||
* gtk_widget_show_all (dialog);
|
||
* }
|
||
* ]|
|
||
*/
|
||
|
||
struct _GtkToggleButtonPrivate
|
||
{
|
||
guint active : 1;
|
||
guint draw_indicator : 1;
|
||
guint inconsistent : 1;
|
||
};
|
||
|
||
enum {
|
||
TOGGLED,
|
||
LAST_SIGNAL
|
||
};
|
||
|
||
enum {
|
||
PROP_0,
|
||
PROP_ACTIVE,
|
||
PROP_INCONSISTENT,
|
||
PROP_DRAW_INDICATOR,
|
||
NUM_PROPERTIES
|
||
};
|
||
|
||
static GParamSpec *toggle_button_props[NUM_PROPERTIES] = { NULL, };
|
||
|
||
static gboolean gtk_toggle_button_mnemonic_activate (GtkWidget *widget,
|
||
gboolean group_cycling);
|
||
static void gtk_toggle_button_clicked (GtkButton *button);
|
||
static void gtk_toggle_button_set_property (GObject *object,
|
||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec);
|
||
static void gtk_toggle_button_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec);
|
||
|
||
|
||
static guint toggle_button_signals[LAST_SIGNAL] = { 0 };
|
||
|
||
G_DEFINE_TYPE_WITH_CODE (GtkToggleButton, gtk_toggle_button, GTK_TYPE_BUTTON,
|
||
G_ADD_PRIVATE (GtkToggleButton))
|
||
|
||
static void
|
||
gtk_toggle_button_class_init (GtkToggleButtonClass *class)
|
||
{
|
||
GObjectClass *gobject_class;
|
||
GtkWidgetClass *widget_class;
|
||
GtkButtonClass *button_class;
|
||
|
||
gobject_class = G_OBJECT_CLASS (class);
|
||
widget_class = (GtkWidgetClass*) class;
|
||
button_class = (GtkButtonClass*) class;
|
||
|
||
gobject_class->set_property = gtk_toggle_button_set_property;
|
||
gobject_class->get_property = gtk_toggle_button_get_property;
|
||
|
||
widget_class->mnemonic_activate = gtk_toggle_button_mnemonic_activate;
|
||
|
||
button_class->clicked = gtk_toggle_button_clicked;
|
||
|
||
class->toggled = NULL;
|
||
|
||
toggle_button_props[PROP_ACTIVE] =
|
||
g_param_spec_boolean ("active",
|
||
P_("Active"),
|
||
P_("If the toggle button should be pressed in"),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
toggle_button_props[PROP_INCONSISTENT] =
|
||
g_param_spec_boolean ("inconsistent",
|
||
P_("Inconsistent"),
|
||
P_("If the toggle button is in an \"in between\" state"),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
toggle_button_props[PROP_DRAW_INDICATOR] =
|
||
g_param_spec_boolean ("draw-indicator",
|
||
P_("Draw Indicator"),
|
||
P_("If the toggle part of the button is displayed"),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE);
|
||
|
||
g_object_class_install_properties (gobject_class, NUM_PROPERTIES, toggle_button_props);
|
||
|
||
/**
|
||
* GtkToggleButton::toggled:
|
||
* @togglebutton: the object which received the signal.
|
||
*
|
||
* Should be connected if you wish to perform an action whenever the
|
||
* #GtkToggleButton's state is changed.
|
||
*/
|
||
toggle_button_signals[TOGGLED] =
|
||
g_signal_new (I_("toggled"),
|
||
G_OBJECT_CLASS_TYPE (gobject_class),
|
||
G_SIGNAL_RUN_FIRST,
|
||
G_STRUCT_OFFSET (GtkToggleButtonClass, toggled),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 0);
|
||
|
||
gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_TOGGLE_BUTTON_ACCESSIBLE);
|
||
gtk_widget_class_set_css_name (widget_class, "button");
|
||
}
|
||
|
||
static void
|
||
gtk_toggle_button_init (GtkToggleButton *toggle_button)
|
||
{
|
||
GtkStyleContext *context;
|
||
|
||
toggle_button->priv = gtk_toggle_button_get_instance_private (toggle_button);
|
||
toggle_button->priv->active = FALSE;
|
||
toggle_button->priv->draw_indicator = FALSE;
|
||
|
||
context = gtk_widget_get_style_context (GTK_WIDGET (toggle_button));
|
||
gtk_style_context_add_class (context, "toggle");
|
||
}
|
||
|
||
|
||
/**
|
||
* gtk_toggle_button_new:
|
||
*
|
||
* Creates a new toggle button. A widget should be packed into the button, as in gtk_button_new().
|
||
*
|
||
* Returns: a new toggle button.
|
||
*/
|
||
GtkWidget*
|
||
gtk_toggle_button_new (void)
|
||
{
|
||
return g_object_new (GTK_TYPE_TOGGLE_BUTTON, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_toggle_button_new_with_label:
|
||
* @label: a string containing the message to be placed in the toggle button.
|
||
*
|
||
* Creates a new toggle button with a text label.
|
||
*
|
||
* Returns: a new toggle button.
|
||
*/
|
||
GtkWidget*
|
||
gtk_toggle_button_new_with_label (const gchar *label)
|
||
{
|
||
return g_object_new (GTK_TYPE_TOGGLE_BUTTON, "label", label, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_toggle_button_new_with_mnemonic:
|
||
* @label: the text of the button, with an underscore in front of the
|
||
* mnemonic character
|
||
*
|
||
* Creates a new #GtkToggleButton containing a label. The label
|
||
* will be created using gtk_label_new_with_mnemonic(), so underscores
|
||
* in @label indicate the mnemonic for the button.
|
||
*
|
||
* Returns: a new #GtkToggleButton
|
||
*/
|
||
GtkWidget*
|
||
gtk_toggle_button_new_with_mnemonic (const gchar *label)
|
||
{
|
||
return g_object_new (GTK_TYPE_TOGGLE_BUTTON,
|
||
"label", label,
|
||
"use-underline", TRUE,
|
||
NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_toggle_button_set_property (GObject *object,
|
||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkToggleButton *tb;
|
||
|
||
tb = GTK_TOGGLE_BUTTON (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ACTIVE:
|
||
gtk_toggle_button_set_active (tb, g_value_get_boolean (value));
|
||
break;
|
||
case PROP_INCONSISTENT:
|
||
gtk_toggle_button_set_inconsistent (tb, g_value_get_boolean (value));
|
||
break;
|
||
case PROP_DRAW_INDICATOR:
|
||
gtk_toggle_button_set_mode (tb, g_value_get_boolean (value));
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_toggle_button_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkToggleButton *tb = GTK_TOGGLE_BUTTON (object);
|
||
GtkToggleButtonPrivate *priv = tb->priv;
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ACTIVE:
|
||
g_value_set_boolean (value, priv->active);
|
||
break;
|
||
case PROP_INCONSISTENT:
|
||
g_value_set_boolean (value, priv->inconsistent);
|
||
break;
|
||
case PROP_DRAW_INDICATOR:
|
||
g_value_set_boolean (value, priv->draw_indicator);
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_toggle_button_set_mode:
|
||
* @toggle_button: a #GtkToggleButton
|
||
* @draw_indicator: if %TRUE, draw the button as a separate indicator
|
||
* and label; if %FALSE, draw the button like a normal button
|
||
*
|
||
* Sets whether the button is displayed as a separate indicator and label.
|
||
* You can call this function on a checkbutton or a radiobutton with
|
||
* @draw_indicator = %FALSE to make the button look like a normal button.
|
||
*
|
||
* This can be used to create linked strip of buttons that work like
|
||
* a #GtkStackSwitcher.
|
||
*
|
||
* This function only affects instances of classes like #GtkCheckButton
|
||
* and #GtkRadioButton that derive from #GtkToggleButton,
|
||
* not instances of #GtkToggleButton itself.
|
||
*/
|
||
void
|
||
gtk_toggle_button_set_mode (GtkToggleButton *toggle_button,
|
||
gboolean draw_indicator)
|
||
{
|
||
GtkToggleButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button));
|
||
|
||
priv = toggle_button->priv;
|
||
|
||
draw_indicator = draw_indicator ? TRUE : FALSE;
|
||
|
||
if (priv->draw_indicator != draw_indicator)
|
||
{
|
||
priv->draw_indicator = draw_indicator;
|
||
|
||
if (gtk_widget_get_visible (GTK_WIDGET (toggle_button)))
|
||
gtk_widget_queue_resize (GTK_WIDGET (toggle_button));
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (toggle_button), toggle_button_props[PROP_DRAW_INDICATOR]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_toggle_button_get_mode:
|
||
* @toggle_button: a #GtkToggleButton
|
||
*
|
||
* Retrieves whether the button is displayed as a separate indicator
|
||
* and label. See gtk_toggle_button_set_mode().
|
||
*
|
||
* Returns: %TRUE if the togglebutton is drawn as a separate indicator
|
||
* and label.
|
||
**/
|
||
gboolean
|
||
gtk_toggle_button_get_mode (GtkToggleButton *toggle_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button), FALSE);
|
||
|
||
return toggle_button->priv->draw_indicator;
|
||
}
|
||
|
||
/**
|
||
* gtk_toggle_button_set_active:
|
||
* @toggle_button: a #GtkToggleButton.
|
||
* @is_active: %TRUE or %FALSE.
|
||
*
|
||
* Sets the status of the toggle button. Set to %TRUE if you want the
|
||
* GtkToggleButton to be “pressed in”, and %FALSE to raise it.
|
||
* This action causes the #GtkToggleButton::toggled signal and the
|
||
* #GtkButton::clicked signal to be emitted.
|
||
*/
|
||
void
|
||
gtk_toggle_button_set_active (GtkToggleButton *toggle_button,
|
||
gboolean is_active)
|
||
{
|
||
GtkToggleButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button));
|
||
|
||
priv = toggle_button->priv;
|
||
|
||
is_active = is_active != FALSE;
|
||
|
||
if (priv->active != is_active)
|
||
{
|
||
gtk_button_clicked (GTK_BUTTON (toggle_button));
|
||
g_object_notify_by_pspec (G_OBJECT (toggle_button), toggle_button_props[PROP_ACTIVE]);
|
||
}
|
||
}
|
||
|
||
void
|
||
_gtk_toggle_button_set_active (GtkToggleButton *toggle_button,
|
||
gboolean is_active)
|
||
{
|
||
toggle_button->priv->active = is_active;
|
||
|
||
if (is_active)
|
||
gtk_widget_set_state_flags (GTK_WIDGET (toggle_button), GTK_STATE_FLAG_CHECKED, FALSE);
|
||
else
|
||
gtk_widget_unset_state_flags (GTK_WIDGET (toggle_button), GTK_STATE_FLAG_CHECKED);
|
||
|
||
}
|
||
|
||
/**
|
||
* gtk_toggle_button_get_active:
|
||
* @toggle_button: a #GtkToggleButton.
|
||
*
|
||
* Queries a #GtkToggleButton and returns its current state. Returns %TRUE if
|
||
* the toggle button is pressed in and %FALSE if it is raised.
|
||
*
|
||
* Returns: a #gboolean value.
|
||
*/
|
||
gboolean
|
||
gtk_toggle_button_get_active (GtkToggleButton *toggle_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button), FALSE);
|
||
|
||
return toggle_button->priv->active;
|
||
}
|
||
|
||
/**
|
||
* gtk_toggle_button_toggled:
|
||
* @toggle_button: a #GtkToggleButton.
|
||
*
|
||
* Emits the #GtkToggleButton::toggled signal on the
|
||
* #GtkToggleButton. There is no good reason for an
|
||
* application ever to call this function.
|
||
*/
|
||
void
|
||
gtk_toggle_button_toggled (GtkToggleButton *toggle_button)
|
||
{
|
||
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button));
|
||
|
||
g_signal_emit (toggle_button, toggle_button_signals[TOGGLED], 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_toggle_button_set_inconsistent:
|
||
* @toggle_button: a #GtkToggleButton
|
||
* @setting: %TRUE if state is inconsistent
|
||
*
|
||
* If the user has selected a range of elements (such as some text or
|
||
* spreadsheet cells) that are affected by a toggle button, and the
|
||
* current values in that range are inconsistent, you may want to
|
||
* display the toggle in an “in between” state. This function turns on
|
||
* “in between” display. Normally you would turn off the inconsistent
|
||
* state again if the user toggles the toggle button. This has to be
|
||
* done manually, gtk_toggle_button_set_inconsistent() only affects
|
||
* visual appearance, it doesn’t affect the semantics of the button.
|
||
*
|
||
**/
|
||
void
|
||
gtk_toggle_button_set_inconsistent (GtkToggleButton *toggle_button,
|
||
gboolean setting)
|
||
{
|
||
GtkToggleButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button));
|
||
|
||
priv = toggle_button->priv;
|
||
|
||
setting = setting != FALSE;
|
||
|
||
if (setting != priv->inconsistent)
|
||
{
|
||
priv->inconsistent = setting;
|
||
|
||
if (setting)
|
||
gtk_widget_set_state_flags (GTK_WIDGET (toggle_button), GTK_STATE_FLAG_INCONSISTENT, FALSE);
|
||
else
|
||
gtk_widget_unset_state_flags (GTK_WIDGET (toggle_button), GTK_STATE_FLAG_INCONSISTENT);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (toggle_button), toggle_button_props[PROP_INCONSISTENT]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_toggle_button_get_inconsistent:
|
||
* @toggle_button: a #GtkToggleButton
|
||
*
|
||
* Gets the value set by gtk_toggle_button_set_inconsistent().
|
||
*
|
||
* Returns: %TRUE if the button is displayed as inconsistent, %FALSE otherwise
|
||
**/
|
||
gboolean
|
||
gtk_toggle_button_get_inconsistent (GtkToggleButton *toggle_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button), FALSE);
|
||
|
||
return toggle_button->priv->inconsistent;
|
||
}
|
||
|
||
static gboolean
|
||
gtk_toggle_button_mnemonic_activate (GtkWidget *widget,
|
||
gboolean group_cycling)
|
||
{
|
||
/*
|
||
* We override the standard implementation in
|
||
* gtk_widget_real_mnemonic_activate() in order to focus the widget even
|
||
* if there is no mnemonic conflict.
|
||
*/
|
||
if (gtk_widget_get_can_focus (widget))
|
||
gtk_widget_grab_focus (widget);
|
||
|
||
if (!group_cycling)
|
||
gtk_widget_activate (widget);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
gtk_toggle_button_clicked (GtkButton *button)
|
||
{
|
||
GtkToggleButton *toggle_button = GTK_TOGGLE_BUTTON (button);
|
||
GtkToggleButtonPrivate *priv = toggle_button->priv;
|
||
|
||
_gtk_toggle_button_set_active (toggle_button, !priv->active);
|
||
|
||
gtk_toggle_button_toggled (toggle_button);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (toggle_button), toggle_button_props[PROP_ACTIVE]);
|
||
|
||
if (GTK_BUTTON_CLASS (gtk_toggle_button_parent_class)->clicked)
|
||
GTK_BUTTON_CLASS (gtk_toggle_button_parent_class)->clicked (button);
|
||
}
|
||
|