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gtk/gtk/gtktearoffmenuitem.c
Javier Jardón 1e5d7c0225 Use GtkFooPrivate instead GtkFooPriv
2010-08-27 04:48:23 +02:00

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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 1997-2000. 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 "gtkmenu.h"
#include "gtktearoffmenuitem.h"
#include "gtkintl.h"
#define ARROW_SIZE 10
#define TEAR_LENGTH 5
#define BORDER_SPACING 3
struct _GtkTearoffMenuItemPrivate
{
guint torn_off : 1;
};
static void gtk_tearoff_menu_item_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static gint gtk_tearoff_menu_item_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_tearoff_menu_item_activate (GtkMenuItem *menu_item);
static void gtk_tearoff_menu_item_parent_set (GtkWidget *widget,
GtkWidget *previous);
G_DEFINE_TYPE (GtkTearoffMenuItem, gtk_tearoff_menu_item, GTK_TYPE_MENU_ITEM)
GtkWidget*
gtk_tearoff_menu_item_new (void)
{
return g_object_new (GTK_TYPE_TEAROFF_MENU_ITEM, NULL);
}
static void
gtk_tearoff_menu_item_class_init (GtkTearoffMenuItemClass *klass)
{
GtkWidgetClass *widget_class;
GtkMenuItemClass *menu_item_class;
widget_class = (GtkWidgetClass*) klass;
menu_item_class = (GtkMenuItemClass*) klass;
widget_class->expose_event = gtk_tearoff_menu_item_expose;
widget_class->size_request = gtk_tearoff_menu_item_size_request;
widget_class->parent_set = gtk_tearoff_menu_item_parent_set;
menu_item_class->activate = gtk_tearoff_menu_item_activate;
g_type_class_add_private (klass, sizeof (GtkTearoffMenuItemPrivate));
}
static void
gtk_tearoff_menu_item_init (GtkTearoffMenuItem *tearoff_menu_item)
{
GtkTearoffMenuItemPrivate *priv;
tearoff_menu_item->priv = G_TYPE_INSTANCE_GET_PRIVATE (tearoff_menu_item,
GTK_TYPE_TEAROFF_MENU_ITEM,
GtkTearoffMenuItemPrivate);
priv = tearoff_menu_item->priv;
priv->torn_off = FALSE;
}
static void
gtk_tearoff_menu_item_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkStyle *style;
GtkWidget *parent;
guint border_width;
style = gtk_widget_get_style (widget);
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
requisition->width = (border_width + style->xthickness + BORDER_SPACING) * 2;
requisition->height = (border_width + style->ythickness) * 2;
parent = gtk_widget_get_parent (widget);
if (GTK_IS_MENU (parent) && GTK_MENU (parent)->torn_off)
{
requisition->height += ARROW_SIZE;
}
else
{
requisition->height += style->ythickness + 4;
}
}
static void
gtk_tearoff_menu_item_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkAllocation allocation;
GtkMenuItem *menu_item;
GtkShadowType shadow_type;
GtkStateType state;
GtkStyle *style;
gint width, height;
gint x, y;
gint right_max;
guint border_width;
GtkArrowType arrow_type;
GtkTextDirection direction;
GtkWidget *parent;
GdkWindow *window;
if (gtk_widget_is_drawable (widget))
{
menu_item = GTK_MENU_ITEM (widget);
style = gtk_widget_get_style (widget);
window = gtk_widget_get_window (widget);
direction = gtk_widget_get_direction (widget);
border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_item));
gtk_widget_get_allocation (widget, &allocation);
x = allocation.x + border_width;
y = allocation.y + border_width;
width = allocation.width - border_width * 2;
height = allocation.height - border_width * 2;
right_max = x + width;
state = gtk_widget_get_state (widget);
if (state == GTK_STATE_PRELIGHT)
{
gint selected_shadow_type;
gtk_widget_style_get (widget,
"selected-shadow-type", &selected_shadow_type,
NULL);
gtk_paint_box (style,
window,
GTK_STATE_PRELIGHT,
selected_shadow_type,
area, widget, "menuitem",
x, y, width, height);
}
else
gdk_window_clear_area (window, area->x, area->y, area->width, area->height);
parent = gtk_widget_get_parent (widget);
if (GTK_IS_MENU (parent) && GTK_MENU (parent)->torn_off)
{
gint arrow_x;
if (state == GTK_STATE_PRELIGHT)
shadow_type = GTK_SHADOW_IN;
else
shadow_type = GTK_SHADOW_OUT;
if (menu_item->toggle_size > ARROW_SIZE)
{
if (direction == GTK_TEXT_DIR_LTR) {
arrow_x = x + (menu_item->toggle_size - ARROW_SIZE)/2;
arrow_type = GTK_ARROW_LEFT;
}
else {
arrow_x = x + width - menu_item->toggle_size + (menu_item->toggle_size - ARROW_SIZE)/2;
arrow_type = GTK_ARROW_RIGHT;
}
x += menu_item->toggle_size + BORDER_SPACING;
}
else
{
if (direction == GTK_TEXT_DIR_LTR) {
arrow_x = ARROW_SIZE / 2;
arrow_type = GTK_ARROW_LEFT;
}
else {
arrow_x = x + width - 2 * ARROW_SIZE + ARROW_SIZE / 2;
arrow_type = GTK_ARROW_RIGHT;
}
x += 2 * ARROW_SIZE;
}
gtk_paint_arrow (style, window,
state, shadow_type,
NULL, widget, "tearoffmenuitem",
arrow_type, FALSE,
arrow_x, y + height / 2 - 5,
ARROW_SIZE, ARROW_SIZE);
}
while (x < right_max)
{
gint x1, x2;
if (direction == GTK_TEXT_DIR_LTR) {
x1 = x;
x2 = MIN (x + TEAR_LENGTH, right_max);
}
else {
x1 = right_max - x;
x2 = MAX (right_max - x - TEAR_LENGTH, 0);
}
gtk_paint_hline (style, window, GTK_STATE_NORMAL,
NULL, widget, "tearoffmenuitem",
x1, x2, y + (height - style->ythickness) / 2);
x += 2 * TEAR_LENGTH;
}
}
}
static gint
gtk_tearoff_menu_item_expose (GtkWidget *widget,
GdkEventExpose *event)
{
gtk_tearoff_menu_item_paint (widget, &event->area);
return FALSE;
}
static void
gtk_tearoff_menu_item_activate (GtkMenuItem *menu_item)
{
GtkWidget *parent;
parent = gtk_widget_get_parent (GTK_WIDGET (menu_item));
if (GTK_IS_MENU (parent))
{
GtkMenu *menu = GTK_MENU (parent);
gtk_widget_queue_resize (GTK_WIDGET (menu_item));
gtk_menu_set_tearoff_state (GTK_MENU (parent),
!menu->torn_off);
}
}
static void
tearoff_state_changed (GtkMenu *menu,
GParamSpec *pspec,
gpointer data)
{
GtkTearoffMenuItem *tearoff_menu_item = GTK_TEAROFF_MENU_ITEM (data);
GtkTearoffMenuItemPrivate *priv = tearoff_menu_item->priv;
priv->torn_off = gtk_menu_get_tearoff_state (menu);
}
static void
gtk_tearoff_menu_item_parent_set (GtkWidget *widget,
GtkWidget *previous)
{
GtkTearoffMenuItem *tearoff_menu_item = GTK_TEAROFF_MENU_ITEM (widget);
GtkTearoffMenuItemPrivate *priv = tearoff_menu_item->priv;
GtkMenu *menu;
GtkWidget *parent;
parent = gtk_widget_get_parent (widget);
menu = GTK_IS_MENU (parent) ? GTK_MENU (parent) : NULL;
if (previous)
g_signal_handlers_disconnect_by_func (previous,
tearoff_state_changed,
tearoff_menu_item);
if (menu)
{
priv->torn_off = gtk_menu_get_tearoff_state (menu);
g_signal_connect (menu, "notify::tearoff-state",
G_CALLBACK (tearoff_state_changed),
tearoff_menu_item);
}
}
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