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//
// MenuBackend.cs
//
// Author:
// Lluis Sanchez <lluis@xamarin.com>
//
// Copyright (c) 2011 Xamarin Inc
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using Xwt.Backends;
using System.Collections.Generic;
namespace Xwt.GtkBackend
{
public class MenuBackend: IMenuBackend
{
Gtk.MenuShell menu;
public void InitializeBackend (object frontend, ApplicationContext context)
{
menu = new Gtk.Menu ();
menu.Visible = true;
}
public Gtk.Menu Menu {
get {
if (menu is Gtk.Menu)
return (Gtk.Menu) menu;
Gtk.Menu newMenu = new Gtk.Menu ();
TransferProps (menu, newMenu);
foreach (var it in menu.Children) {
menu.Remove (it);
newMenu.Add (it);
}
menu = newMenu;
return newMenu;
}
}
public Gtk.MenuBar MenuBar {
get {
if (menu is Gtk.MenuBar)
return (Gtk.MenuBar) menu;
Gtk.MenuBar bar = new Gtk.MenuBar ();
TransferProps (menu, bar);
foreach (var it in menu.Children) {
menu.Remove (it);
bar.Insert (it, -1);
}
menu = bar;
return bar;
}
}
Pango.FontDescription customFont;
public virtual object Font {
get {
return customFont ?? menu.Style.FontDescription;
}
set {
customFont = (Pango.FontDescription) value;
foreach (var item in menu.AllChildren) {
var bin = item as Gtk.Container;
if (bin != null)
foreach (Gtk.Widget w in bin.Children)
w.ModifyFont (customFont);
}
}
}
void TransferProps (Gtk.MenuShell oldMenu, Gtk.MenuShell newMenu)
{
if (oldMenu.Visible)
newMenu.Show ();
if (!oldMenu.Sensitive)
newMenu.Sensitive = false;
}
public void InsertItem (int index, IMenuItemBackend menuItem)
{
Gtk.MenuItem item = ((MenuItemBackend)menuItem).MenuItem;
if (customFont != null)
foreach(Gtk.Widget w in item.AllChildren)
w.ModifyFont (customFont);
menu.Insert (item, index);
}
public void RemoveItem (IMenuItemBackend menuItem)
{
Gtk.MenuItem item = ((MenuItemBackend)menuItem).MenuItem;
menu.Remove (item);
}
public void EnableEvent (object eventId)
{
}
public void DisableEvent (object eventId)
{
}
public void Popup ()
{
GtkWorkarounds.ShowContextMenu (Menu, null, Gdk.Rectangle.Zero);
}
public void Popup (IWidgetBackend widget, double x, double y)
{
GtkWorkarounds.ShowContextMenu (Menu, ((WidgetBackend)widget).Widget, new Gdk.Rectangle ((int)x, (int)y, 0, 0));
}
}
}
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