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94694c8dc27c8bab67312d253a5ec0e0a925a430
gtk3/gtk/gtkcheckmenuitem.c

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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 "gtkcheckmenuitem.h"
#include "gtkaccellabel.h"
#include "gtksignal.h"
#include "gtkintl.h"
#include "gtkmarshalers.h"
#define CHECK_TOGGLE_SIZE 12
enum {
TOGGLED,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_ACTIVE,
PROP_INCONSISTENT
};
static void gtk_check_menu_item_class_init (GtkCheckMenuItemClass *klass);
static void gtk_check_menu_item_init (GtkCheckMenuItem *check_menu_item);
static gint gtk_check_menu_item_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_check_menu_item_activate (GtkMenuItem *menu_item);
static void gtk_check_menu_item_toggle_size_request (GtkMenuItem *menu_item,
gint *requisition);
static void gtk_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
GdkRectangle *area);
static void gtk_real_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
GdkRectangle *area);
static void gtk_check_menu_item_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_check_menu_item_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static GtkMenuItemClass *parent_class = NULL;
static guint check_menu_item_signals[LAST_SIGNAL] = { 0 };
GtkType
gtk_check_menu_item_get_type (void)
{
static GtkType check_menu_item_type = 0;
if (!check_menu_item_type)
{
static const GtkTypeInfo check_menu_item_info =
{
"GtkCheckMenuItem",
sizeof (GtkCheckMenuItem),
sizeof (GtkCheckMenuItemClass),
(GtkClassInitFunc) gtk_check_menu_item_class_init,
(GtkObjectInitFunc) gtk_check_menu_item_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
check_menu_item_type = gtk_type_unique (GTK_TYPE_MENU_ITEM, &check_menu_item_info);
}
return check_menu_item_type;
}
static void
gtk_check_menu_item_class_init (GtkCheckMenuItemClass *klass)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkMenuItemClass *menu_item_class;
object_class = (GtkObjectClass*) klass;
widget_class = (GtkWidgetClass*) klass;
menu_item_class = (GtkMenuItemClass*) klass;
parent_class = gtk_type_class (GTK_TYPE_MENU_ITEM);
G_OBJECT_CLASS(object_class)->set_property = gtk_check_menu_item_set_property;
G_OBJECT_CLASS(object_class)->get_property = gtk_check_menu_item_get_property;
g_object_class_install_property (G_OBJECT_CLASS (object_class),
PROP_ACTIVE,
g_param_spec_boolean ("active",
_("Active"),
_("Whether the menu item is checked."),
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (object_class),
PROP_INCONSISTENT,
g_param_spec_boolean ("inconsistent",
_("Inconsistent"),
_("Whether to display an \"inconsistent\" state."),
FALSE,
G_PARAM_READWRITE));
widget_class->expose_event = gtk_check_menu_item_expose;
menu_item_class->activate = gtk_check_menu_item_activate;
menu_item_class->hide_on_activate = FALSE;
menu_item_class->toggle_size_request = gtk_check_menu_item_toggle_size_request;
klass->toggled = NULL;
klass->draw_indicator = gtk_real_check_menu_item_draw_indicator;
check_menu_item_signals[TOGGLED] =
gtk_signal_new ("toggled",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkCheckMenuItemClass, toggled),
_gtk_marshal_VOID__VOID,
GTK_TYPE_NONE, 0);
}
GtkWidget*
gtk_check_menu_item_new (void)
{
return GTK_WIDGET (gtk_type_new (GTK_TYPE_CHECK_MENU_ITEM));
}
GtkWidget*
gtk_check_menu_item_new_with_label (const gchar *label)
{
GtkWidget *check_menu_item;
GtkWidget *accel_label;
check_menu_item = gtk_check_menu_item_new ();
accel_label = gtk_accel_label_new (label);
gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
gtk_container_add (GTK_CONTAINER (check_menu_item), accel_label);
gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), check_menu_item);
gtk_widget_show (accel_label);
return check_menu_item;
}
/**
* gtk_check_menu_item_new_with_mnemonic:
* @label: The text of the button, with an underscore in front of the
* mnemonic character
* @returns: a new #GtkCheckMenuItem
*
* Creates a new #GtkCheckMenuItem containing a label. The label
* will be created using gtk_label_new_with_mnemonic(), so underscores
* in @label indicate the mnemonic for the menu item.
**/
GtkWidget*
gtk_check_menu_item_new_with_mnemonic (const gchar *label)
{
GtkWidget *check_menu_item;
GtkWidget *accel_label;
check_menu_item = gtk_check_menu_item_new ();
accel_label = gtk_type_new (GTK_TYPE_ACCEL_LABEL);
gtk_label_set_text_with_mnemonic (GTK_LABEL (accel_label), label);
gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
gtk_container_add (GTK_CONTAINER (check_menu_item), accel_label);
gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), check_menu_item);
gtk_widget_show (accel_label);
return check_menu_item;
}
void
gtk_check_menu_item_set_active (GtkCheckMenuItem *check_menu_item,
gboolean is_active)
{
g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item));
is_active = is_active != 0;
if (check_menu_item->active != is_active)
gtk_menu_item_activate (GTK_MENU_ITEM (check_menu_item));
}
/**
* gtk_check_menu_item_get_active:
* @check_menu_item: a #GtkCheckMenuItem
*
* Returns whether the check menu item is active. See
* gtk_check_menu_item_set_active ().
*
* Return value: %TRUE if the menu item is checked.
*/
gboolean
gtk_check_menu_item_get_active (GtkCheckMenuItem *check_menu_item)
{
g_return_val_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item), FALSE);
return check_menu_item->active;
}
static void
gtk_check_menu_item_toggle_size_request (GtkMenuItem *menu_item,
gint *requisition)
{
g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (menu_item));
*requisition = CHECK_TOGGLE_SIZE;
}
void
gtk_check_menu_item_set_show_toggle (GtkCheckMenuItem *menu_item,
gboolean always)
{
g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (menu_item));
#if 0
menu_item->always_show_toggle = always != FALSE;
#endif
}
void
gtk_check_menu_item_toggled (GtkCheckMenuItem *check_menu_item)
{
gtk_signal_emit (GTK_OBJECT (check_menu_item), check_menu_item_signals[TOGGLED]);
}
/**
* gtk_check_menu_item_set_inconsistent:
* @check_menu_item: a #GtkCheckMenuItem
* @setting: %TRUE to display an "inconsistent" third state check
*
* If the user has selected a range of elements (such as some text or
* spreadsheet cells) that are affected by a boolean setting, and the
* current values in that range are inconsistent, you may want to
* display the check in an "in between" state. This function turns on
* "in between" display. Normally you would turn off the inconsistent
* state again if the user explicitly selects a setting. This has to be
* done manually, gtk_check_menu_item_set_inconsistent() only affects
* visual appearance, it doesn't affect the semantics of the widget.
*
**/
void
gtk_check_menu_item_set_inconsistent (GtkCheckMenuItem *check_menu_item,
gboolean setting)
{
g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item));
setting = setting != FALSE;
if (setting != check_menu_item->inconsistent)
{
check_menu_item->inconsistent = setting;
gtk_widget_queue_draw (GTK_WIDGET (check_menu_item));
g_object_notify (G_OBJECT (check_menu_item), "inconsistent");
}
}
/**
* gtk_check_menu_item_get_inconsistent:
* @check_menu_item: a #GtkCheckMenuItem
*
* Retrieves the value set by gtk_check_menu_item_set_inconsistent().
*
* Return value: %TRUE if inconsistent
**/
gboolean
gtk_check_menu_item_get_inconsistent (GtkCheckMenuItem *check_menu_item)
{
g_return_val_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item), FALSE);
return check_menu_item->inconsistent;
}
static void
gtk_check_menu_item_init (GtkCheckMenuItem *check_menu_item)
{
check_menu_item->active = FALSE;
check_menu_item->always_show_toggle = TRUE;
}
static gint
gtk_check_menu_item_expose (GtkWidget *widget,
GdkEventExpose *event)
{
if (GTK_WIDGET_CLASS (parent_class)->expose_event)
(* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
gtk_check_menu_item_draw_indicator (GTK_CHECK_MENU_ITEM (widget), &event->area);
return FALSE;
}
static void
gtk_check_menu_item_activate (GtkMenuItem *menu_item)
{
GtkCheckMenuItem *check_menu_item = GTK_CHECK_MENU_ITEM (menu_item);
check_menu_item->active = !check_menu_item->active;
gtk_check_menu_item_toggled (check_menu_item);
gtk_widget_queue_draw (GTK_WIDGET (check_menu_item));
g_object_notify (G_OBJECT (check_menu_item), "active");
}
static void
gtk_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
GdkRectangle *area)
{
if (GTK_CHECK_MENU_ITEM_GET_CLASS (check_menu_item)->draw_indicator)
(* GTK_CHECK_MENU_ITEM_GET_CLASS (check_menu_item)->draw_indicator) (check_menu_item, area);
}
static void
gtk_real_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
GdkRectangle *area)
{
GtkWidget *widget;
GtkStateType state_type;
GtkShadowType shadow_type;
gint width, height;
gint x, y;
if (GTK_WIDGET_DRAWABLE (check_menu_item))
{
widget = GTK_WIDGET (check_menu_item);
width = 8;
height = 8;
x = widget->allocation.x + (GTK_CONTAINER (check_menu_item)->border_width +
widget->style->xthickness + 2);
y = widget->allocation.y + (widget->allocation.height - height) / 2;
if (check_menu_item->active ||
check_menu_item->always_show_toggle ||
(GTK_WIDGET_STATE (check_menu_item) == GTK_STATE_PRELIGHT))
{
state_type = GTK_WIDGET_STATE (widget);
if (check_menu_item->always_show_toggle)
{
shadow_type = GTK_SHADOW_OUT;
if (check_menu_item->active)
shadow_type = GTK_SHADOW_IN;
}
else
{
shadow_type = GTK_SHADOW_IN;
if (check_menu_item->active &&
(state_type == GTK_STATE_PRELIGHT))
shadow_type = GTK_SHADOW_OUT;
}
if (check_menu_item->inconsistent)
{
shadow_type = GTK_SHADOW_ETCHED_IN;
if (state_type == GTK_STATE_ACTIVE)
state_type = GTK_STATE_NORMAL;
}
gtk_paint_check (widget->style, widget->window,
state_type, shadow_type,
area, widget, "check",
x, y, width, height);
}
}
}
static void
gtk_check_menu_item_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkCheckMenuItem *checkitem = GTK_CHECK_MENU_ITEM (object);
switch (prop_id)
{
case PROP_ACTIVE:
g_value_set_boolean (value, checkitem->active);
break;
case PROP_INCONSISTENT:
g_value_set_boolean (value, checkitem->inconsistent);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_check_menu_item_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkCheckMenuItem *checkitem = GTK_CHECK_MENU_ITEM (object);
switch (prop_id)
{
case PROP_ACTIVE:
gtk_check_menu_item_set_active (checkitem, g_value_get_boolean (value));
break;
case PROP_INCONSISTENT:
gtk_check_menu_item_set_inconsistent (checkitem, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
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