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//
// WindowBackend.cs
//
// Author:
// Lluis Sanchez <lluis@xamarin.com>
// Konrad Kruczyński <kkruczynski@antmicro.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 Xwt.CairoBackend;
using Xwt.Drawing;
namespace Xwt.GtkBackend
{
public class WindowBackend: WindowFrameBackend, IWindowBackend, IConstraintProvider
{
Gtk.Alignment alignment;
Gtk.MenuBar mainMenu;
Gtk.VBox mainBox;
public override void Initialize ()
{
Window = new Gtk.Window ("");
Window.Add (CreateMainLayout ());
}
protected virtual Gtk.Widget CreateMainLayout ()
{
mainBox = new Gtk.VBox ();
mainBox.Show ();
alignment = new RootWindowAlignment (this);
mainBox.PackStart (alignment, true, true, 0);
alignment.Show ();
return mainBox;
}
public Gtk.VBox MainBox {
get { return mainBox; }
}
public override void GetMetrics (out Size minSize, out Size decorationSize)
{
if (mainMenu != null) {
var ms = mainMenu.SizeRequest ();
minSize = new Size (ms.Width, 0);
decorationSize = new Size (0, ms.Height);
}
else {
minSize = decorationSize = Size.Zero;
}
}
public void SetChild (IWidgetBackend child)
{
if (alignment.Child != null) {
WidgetBackend.RemoveChildPlacement (alignment.Child);
alignment.Remove (alignment.Child);
}
alignment.Child = WidgetBackend.GetWidgetWithPlacement (child);
}
public virtual void UpdateChildPlacement (IWidgetBackend childBackend)
{
WidgetBackend.SetChildPlacement (childBackend);
}
public void SetMainMenu (IMenuBackend menu)
{
if (mainMenu != null)
mainBox.Remove (mainMenu);
if (menu != null) {
MenuBackend m = (MenuBackend) menu;
mainMenu = m.MenuBar;
mainBox.PackStart (mainMenu, false, false, 0);
((Gtk.Box.BoxChild)mainBox[mainMenu]).Position = 0;
} else
mainMenu = null;
}
public void SetPadding (double left, double top, double right, double bottom)
{
alignment.LeftPadding = (uint) left;
alignment.RightPadding = (uint) right;
alignment.TopPadding = (uint) top;
alignment.BottomPadding = (uint) bottom;
}
public void SetMinSize (Size s)
{
// Not required
}
public override void SetSize (double width, double height)
{
base.SetSize (width, height);
if (alignment.Child != null)
alignment.Child.QueueResize ();
}
public void GetConstraints (Gtk.Widget target, out SizeConstraint width, out SizeConstraint height)
{
width = RequestedSize.Width;
height = RequestedSize.Height;
}
Color? backgroundColor;
Color IWindowBackend.BackgroundColor {
get {
return backgroundColor ?? Window.GetBackgroundColor ();
}
set {
backgroundColor = value;
if (Window is GtkPopoverWindow)
((GtkPopoverWindow)Window).BackgroundColor = value.ToCairoColor ();
Window.SetBackgroundColor (value);
}
}
}
class RootWindowAlignment: Gtk.Alignment, IConstraintProvider
{
WindowBackend backend;
public RootWindowAlignment (WindowBackend backend): base (0, 0, 1, 1)
{
this.backend = backend;
}
public void GetConstraints (Gtk.Widget target, out SizeConstraint width, out SizeConstraint height)
{
backend.GetConstraints (this, out width, out height);
}
}
}
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