gtk2/gtk/gtkseparatortoolitem.c
2019-05-26 23:01:34 -04:00

252 lines
7.9 KiB
C

/* gtkseparatortoolitem.c
*
* Copyright (C) 2002 Anders Carlsson <andersca@gnome.org>
* Copyright (C) 2002 James Henstridge <james@daa.com.au>
*
* 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/>.
*/
#include "config.h"
#include "gtkseparatortoolitem.h"
#include "gtkintl.h"
#include "gtkprivate.h"
#include "gtkseparatormenuitem.h"
#include "gtkstylecontext.h"
#include "gtktoolbarprivate.h"
#include "gtkwidgetprivate.h"
/**
* SECTION:gtkseparatortoolitem
* @Short_description: A toolbar item that separates groups of other
* toolbar items
* @Title: GtkSeparatorToolItem
* @See_also: #GtkToolbar, #GtkRadioToolButton
*
* A #GtkSeparatorToolItem is a #GtkToolItem that separates groups of other
* #GtkToolItems. Depending on the theme, a #GtkSeparatorToolItem will
* often look like a vertical line on horizontally docked toolbars.
*
* If the #GtkToolbar child property “expand” is %TRUE and the property
* #GtkSeparatorToolItem:draw is %FALSE, a #GtkSeparatorToolItem will act as
* a “spring” that forces other items to the ends of the toolbar.
*
* Use gtk_separator_tool_item_new() to create a new #GtkSeparatorToolItem.
*
* # CSS nodes
*
* GtkSeparatorToolItem has a single CSS node with name separator.
*/
typedef struct _GtkSeparatorToolItemClass GtkSeparatorToolItemClass;
struct _GtkSeparatorToolItem
{
GtkToolItem parent_instance;
};
struct _GtkSeparatorToolItemClass
{
GtkToolItemClass parent_class;
};
#define MENU_ID "gtk-separator-tool-item-menu-id"
enum {
PROP_0,
PROP_DRAW
};
static gboolean gtk_separator_tool_item_create_menu_proxy (GtkToolItem *item);
static void gtk_separator_tool_item_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_separator_tool_item_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_separator_tool_item_add (GtkContainer *container,
GtkWidget *child);
G_DEFINE_TYPE (GtkSeparatorToolItem, gtk_separator_tool_item, GTK_TYPE_TOOL_ITEM)
static void
gtk_separator_tool_item_class_init (GtkSeparatorToolItemClass *class)
{
GObjectClass *object_class;
GtkContainerClass *container_class;
GtkToolItemClass *toolitem_class;
GtkWidgetClass *widget_class;
object_class = (GObjectClass *)class;
container_class = (GtkContainerClass *)class;
toolitem_class = (GtkToolItemClass *)class;
widget_class = (GtkWidgetClass *)class;
object_class->set_property = gtk_separator_tool_item_set_property;
object_class->get_property = gtk_separator_tool_item_get_property;
toolitem_class->create_menu_proxy = gtk_separator_tool_item_create_menu_proxy;
container_class->add = gtk_separator_tool_item_add;
g_object_class_install_property (object_class,
PROP_DRAW,
g_param_spec_boolean ("draw",
P_("Draw"),
P_("Whether the separator is drawn, or just blank"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
gtk_widget_class_set_css_name (widget_class, I_("separator"));
}
static void
gtk_separator_tool_item_init (GtkSeparatorToolItem *separator_item)
{
GtkWidget *widget;
widget = GTK_WIDGET (separator_item);
gtk_widget_set_has_surface (widget, FALSE);
}
static void
gtk_separator_tool_item_add (GtkContainer *container,
GtkWidget *child)
{
g_warning ("attempt to add a child to an GtkSeparatorToolItem");
}
static gboolean
gtk_separator_tool_item_create_menu_proxy (GtkToolItem *item)
{
GtkWidget *menu_item = NULL;
menu_item = gtk_separator_menu_item_new ();
gtk_tool_item_set_proxy_menu_item (item, MENU_ID, menu_item);
return TRUE;
}
static void
gtk_separator_tool_item_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkSeparatorToolItem *item = GTK_SEPARATOR_TOOL_ITEM (object);
switch (prop_id)
{
case PROP_DRAW:
gtk_separator_tool_item_set_draw (item, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_separator_tool_item_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkSeparatorToolItem *item = GTK_SEPARATOR_TOOL_ITEM (object);
switch (prop_id)
{
case PROP_DRAW:
g_value_set_boolean (value, gtk_separator_tool_item_get_draw (item));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/**
* gtk_separator_tool_item_new:
*
* Create a new #GtkSeparatorToolItem
*
* Returns: the new #GtkSeparatorToolItem
*/
GtkToolItem *
gtk_separator_tool_item_new (void)
{
GtkToolItem *self;
self = g_object_new (GTK_TYPE_SEPARATOR_TOOL_ITEM,
NULL);
return self;
}
/**
* gtk_separator_tool_item_get_draw:
* @item: a #GtkSeparatorToolItem
*
* Returns whether @item is drawn as a line, or just blank.
* See gtk_separator_tool_item_set_draw().
*
* Returns: %TRUE if @item is drawn as a line, or just blank.
*/
gboolean
gtk_separator_tool_item_get_draw (GtkSeparatorToolItem *item)
{
GtkStyleContext *context;
g_return_val_if_fail (GTK_IS_SEPARATOR_TOOL_ITEM (item), FALSE);
context = gtk_widget_get_style_context (GTK_WIDGET (item));
return !gtk_style_context_has_class (context, "invisible");
}
/**
* gtk_separator_tool_item_set_draw:
* @item: a #GtkSeparatorToolItem
* @draw: whether @item is drawn as a vertical line
*
* Whether @item is drawn as a vertical line, or just blank.
* Setting this to %FALSE along with gtk_tool_item_set_expand() is useful
* to create an item that forces following items to the end of the toolbar.
*/
void
gtk_separator_tool_item_set_draw (GtkSeparatorToolItem *item,
gboolean draw)
{
g_return_if_fail (GTK_IS_SEPARATOR_TOOL_ITEM (item));
draw = !!draw;
if (draw == gtk_separator_tool_item_get_draw (item))
return;
if (draw)
gtk_style_context_remove_class (gtk_widget_get_style_context (GTK_WIDGET (item)),
"invisible");
else
gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (item)),
"invisible");
g_object_notify (G_OBJECT (item), "draw");
}