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Viewing changes to external/xwt/Xwt.Gtk/Xwt.GtkBackend/WindowFrameBackend.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/xwt/Xwt.Gtk/Xwt.GtkBackend/WindowFrameBackend.cs
 
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// 
 
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// WindowFrameBa.cs
 
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//  
 
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// Author:
 
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//       Lluis Sanchez <lluis@xamarin.com>
 
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// 
 
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// Copyright (c) 2011 Xamarin Inc
 
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// 
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
 
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// of this software and associated documentation files (the "Software"), to deal
 
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// in the Software without restriction, including without limitation the rights
 
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
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// copies of the Software, and to permit persons to whom the Software is
 
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// furnished to do so, subject to the following conditions:
 
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// 
 
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// The above copyright notice and this permission notice shall be included in
 
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// all copies or substantial portions of the Software.
 
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// 
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
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// THE SOFTWARE.
 
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using System;
 
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using Xwt.Backends;
 
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using Xwt.Engine;
 
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using Xwt.Drawing;
 
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namespace Xwt.GtkBackend
 
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{
 
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        public class WindowFrameBackend: IWindowFrameBackend
 
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        {
 
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                Gtk.Window window;
 
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                IWindowFrameEventSink eventSink;
 
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                WindowFrame frontend;
 
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                Size requestedSize;
 
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                bool positionSet;
 
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                public WindowFrameBackend ()
 
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                {
 
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                }
 
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                public Gtk.Window Window {
 
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                        get { return window; }
 
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                        set { window = value; }
 
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                }
 
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                protected WindowFrame Frontend {
 
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                        get { return frontend; }
 
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                }
 
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                void IBackend.InitializeBackend (object frontend)
 
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                {
 
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                        this.frontend = (WindowFrame) frontend;
 
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                }
 
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                public virtual void ReplaceChild (Gtk.Widget oldWidget, Gtk.Widget newWidget)
 
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                {
 
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                        throw new NotSupportedException ();
 
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                }
 
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                #region IWindowFrameBackend implementation
 
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                void IWindowFrameBackend.Initialize (IWindowFrameEventSink eventSink)
 
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                {
 
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                        this.eventSink = eventSink;
 
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                        Initialize ();
 
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                        Window.SizeRequested += delegate(object o, Gtk.SizeRequestedArgs args) {
 
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                                if (!Window.Resizable) {
 
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                                        int w = args.Requisition.Width, h = args.Requisition.Height;
 
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                                        if (w < (int) requestedSize.Width)
 
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                                                w = (int) requestedSize.Width;
 
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                                        if (h < (int) requestedSize.Height)
 
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                                                h = (int) requestedSize.Height;
 
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                                        args.Requisition = new Gtk.Requisition () { Width = w, Height = h };
 
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                                }
 
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                        };
 
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                }
 
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                public virtual void Initialize ()
 
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                {
 
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                }
 
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                public virtual void Dispose ()
 
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                {
 
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                        Window.Destroy ();
 
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                }
 
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                public IWindowFrameEventSink EventSink {
 
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                        get { return eventSink; }
 
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                }
 
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                public void Move (double x, double y)
 
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                {
 
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                        positionSet = true;
 
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                        Window.Move ((int)x, (int)y);
 
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                        Toolkit.Invoke (delegate {
 
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                                EventSink.OnBoundsChanged (Bounds);
 
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                        });
 
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                }
 
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                public void Resize (double width, double height)
 
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                {
 
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                        requestedSize = new Size (width, height);
 
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                        Window.Resize ((int)width, (int)height);
 
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                        Window.SetDefaultSize ((int)width, (int)height);
 
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                }
 
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                public Rectangle Bounds {
 
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                        get {
 
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                                int w, h, x, y;
 
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                                Window.GetPosition (out x, out y);
 
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                                Window.GetSize (out w, out h);
 
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                                return new Rectangle (x, y, w, h);
 
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                        }
 
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                        set {
 
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                                positionSet = true;
 
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                                requestedSize = value.Size;
 
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                                Window.Move ((int)value.X, (int)value.Y);
 
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                                Window.Resize ((int)value.Width, (int)value.Height);
 
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                                Window.SetDefaultSize ((int)value.Width, (int)value.Height);
 
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                                Toolkit.Invoke (delegate {
 
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                                        EventSink.OnBoundsChanged (Bounds);
 
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                                });
 
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                        }
 
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                }
 
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                bool IWindowFrameBackend.Visible {
 
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                        get {
 
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                                return window.Visible;
 
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                        }
 
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                        set {
 
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                                if (value)
 
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                                        SetDefaultPosition ();
 
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                                window.Visible = value;
 
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                        }
 
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                }
 
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                protected void SetDefaultPosition ()
 
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                {
 
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                        if (!positionSet) {
 
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                                if (window.TransientFor != null)
 
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                                        window.SetPosition (Gtk.WindowPosition.CenterOnParent);
 
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                                else
 
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                                        window.SetPosition (Gtk.WindowPosition.Center);
 
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                                positionSet = true;
 
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                        }
 
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                }
 
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                string IWindowFrameBackend.Title {
 
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                        get { return Window.Title; }
 
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                        set { Window.Title = value; }
 
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                }
 
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                bool IWindowFrameBackend.Decorated {
 
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                        get {
 
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                                return Window.Decorated;
 
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                        }
 
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                        set {
 
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                                Window.Decorated = value;
 
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                        }
 
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                }
 
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                bool IWindowFrameBackend.ShowInTaskbar {
 
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                        get {
 
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                                return !Window.SkipTaskbarHint;
 
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                        }
 
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                        set {
 
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                                Window.SkipTaskbarHint = !value;
 
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                        }
 
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                }
 
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                void IWindowFrameBackend.SetTransientFor (IWindowFrameBackend window)
 
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                {
 
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                        Window.TransientFor = ((WindowFrameBackend)window).Window;
 
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                }
 
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                public bool Resizable {
 
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                        get {
 
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                                return Window.Resizable;
 
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                        }
 
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                        set {
 
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                                Window.Resizable = value;
 
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                        }
 
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                }
 
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                public void SetIcon(object backendImage)
 
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                {
 
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                        Window.Icon = backendImage as Gdk.Pixbuf;
 
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                }
 
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                #endregion
 
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                public virtual void EnableEvent (object ev)
 
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                {
 
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                        if (ev is WindowFrameEvent) {
 
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                                switch ((WindowFrameEvent)ev) {
 
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                                case WindowFrameEvent.BoundsChanged:
 
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                                        Window.SizeAllocated += HandleWidgetSizeAllocated; break;
 
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                                case WindowFrameEvent.CloseRequested:
 
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                                        Window.DeleteEvent += HandleCloseRequested; break;
 
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                                }
 
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                        }
 
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                }
 
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                public virtual void DisableEvent (object ev)
 
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                {
 
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                        if (ev is WindowFrameEvent) {
 
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                                switch ((WindowFrameEvent)ev) {
 
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                                case WindowFrameEvent.BoundsChanged:
 
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                                        Window.SizeAllocated -= HandleWidgetSizeAllocated; break;
 
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                                case WindowFrameEvent.CloseRequested:
 
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                                        Window.DeleteEvent -= HandleCloseRequested; break;
 
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                                }
 
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                        }
 
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                }
 
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                void HandleWidgetSizeAllocated (object o, Gtk.SizeAllocatedArgs args)
 
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                {
 
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                        Toolkit.Invoke (delegate {
 
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                                EventSink.OnBoundsChanged (Bounds);
 
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                        });
 
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                }
 
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                void HandleCloseRequested (object o, Gtk.DeleteEventArgs args)
 
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                {
 
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                        Toolkit.Invoke(delegate {
 
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                                args.RetVal = EventSink.OnCloseRequested ();
 
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                        });
 
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                }
 
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                public void Present ()
 
233
                {
 
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                        if (Platform.IsMac)
 
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                                GtkWorkarounds.GrabDesktopFocus ();
 
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                        Window.Present ();
 
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                }
 
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                public virtual Size ImplicitMinSize {
 
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                        get { return new Size (0,0); }
 
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                }
 
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        }
 
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}
 
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