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Viewing changes to external/xwt/Xwt/Xwt/Dialog.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/Xwt/Dialog.cs
 
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// 
 
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// Dialog.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.Drawing;
 
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using Xwt.Engine;
 
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namespace Xwt
 
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{
 
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        public class Dialog: Window
 
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        {
 
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                DialogButtonCollection commands;
 
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                Command resultCommand;
 
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                bool loopEnded;
 
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                public Dialog ()
 
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                {
 
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                        commands = new DialogButtonCollection ((WindowBackendHost)BackendHost);
 
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                }
 
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                protected new class WindowBackendHost: Window.WindowBackendHost, ICollectionListener, IDialogEventSink
 
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                {
 
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                        new Dialog Parent { get { return (Dialog) base.Parent; } }
 
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                        public virtual void ItemAdded (object collection, object item)
 
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                        {
 
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                                if (collection == Parent.commands) {
 
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                                        ((DialogButton)item).ParentDialog = Parent;
 
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                                        Parent.Backend.SetButtons (Parent.commands);
 
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                                }
 
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                        }
 
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                        public virtual void ItemRemoved (object collection, object item)
 
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                        {
 
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                                if (collection == Parent.commands) {
 
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                                        ((DialogButton)item).ParentDialog = null;
 
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                                        Parent.Backend.SetButtons (Parent.commands);
 
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                                }
 
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                        }
 
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                        public void OnDialogButtonClicked (DialogButton btn)
 
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                        {
 
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                                btn.RaiseClicked ();
 
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                                if (btn.Command != null)
 
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                                        Parent.OnCommandActivated (btn.Command);
 
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                        }
 
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                }
 
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                protected override BackendHost CreateBackendHost ()
 
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                {
 
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                        return new WindowBackendHost ();
 
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                }
 
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                IDialogBackend Backend {
 
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                        get { return (IDialogBackend) BackendHost.Backend; } 
 
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                }
 
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                public DialogButtonCollection Buttons {
 
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                        get { return commands; }
 
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                }
 
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                protected virtual void OnCommandActivated (Command cmd)
 
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                {
 
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                        Respond (cmd);
 
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                }
 
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                public Command Run ()
 
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                {
 
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                        return Run (null);
 
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                }
 
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                public Command Run (WindowFrame parent)
 
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                {
 
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                        Toolkit.InvokePlatformCode (delegate {
 
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                                Backend.RunLoop ((IWindowFrameBackend) WidgetRegistry.GetBackend (parent));
 
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                        });
 
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                        return resultCommand;
 
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                }
 
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                public void Respond (Command cmd)
 
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                {
 
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                        resultCommand = cmd;
 
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                        if (!loopEnded) {
 
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                                loopEnded = true;
 
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                                Backend.EndLoop ();
 
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                        }
 
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                }
 
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                public void EnableCommand (Command cmd)
 
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                {
 
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                        var btn = Buttons.GetCommandButton (cmd);
 
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                        if (btn != null)
 
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                                btn.Sensitive = true;
 
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                }
 
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                public void DisableCommand (Command cmd)
 
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                {
 
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                        var btn = Buttons.GetCommandButton (cmd);
 
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                        if (btn != null)
 
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                                btn.Sensitive = false;
 
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                }
 
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                public void ShowCommand (Command cmd)
 
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                {
 
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                        var btn = Buttons.GetCommandButton (cmd);
 
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                        if (btn != null)
 
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                                btn.Visible = true;
 
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                }
 
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                public void HideCommand (Command cmd)
 
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                {
 
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                        var btn = Buttons.GetCommandButton (cmd);
 
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                        if (btn != null)
 
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                                btn.Visible = false;
 
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                }
 
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                internal void UpdateButton (DialogButton btn)
 
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                {
 
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                        Backend.UpdateButton (btn);
 
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                }
 
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        }
 
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        public class DialogButton
 
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        {
 
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                Command command;
 
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                string label;
 
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                Image image;
 
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                bool visible = true;
 
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                bool sensitive = true;
 
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                internal Dialog ParentDialog;
 
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                public DialogButton (string label)
 
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                {
 
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                        this.label = label;
 
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                }
 
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                public DialogButton (string label, Command cmd)
 
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                {
 
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                        this.label = label;
 
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                        this.command = cmd;
 
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                }
 
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                public DialogButton (string label, Image icon)
 
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                {
 
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                        this.label = label;
 
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                        this.image = icon;
 
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                }
 
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                public DialogButton (string label, Image icon, Command cmd)
 
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                {
 
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                        this.label = label;
 
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                        this.command = cmd;
 
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                        this.image = icon;
 
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                }
 
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                public DialogButton (Command cmd)
 
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                {
 
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                        this.command = cmd;
 
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                }
 
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                public Command Command {
 
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                        get { return command; }
 
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                }
 
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                public string Label {
 
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                        get {
 
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                                if (label != null)
 
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                                        return label;
 
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                                if (command != null)
 
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                                        return command.Label;
 
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                                return "";
 
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                        }
 
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                        set {
 
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                                label = value;
 
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                                ParentDialog.UpdateButton (this);
 
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                        }
 
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                }
 
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                public Image Image {
 
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                        get {
 
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                                if (image != null)
 
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                                        return image;
 
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                                return null;
 
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                        }
 
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                        set {
 
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                                image = value;
 
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                                ParentDialog.UpdateButton (this);
 
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                        }
 
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                }
 
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                public bool Visible { 
 
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                        get { return visible; }
 
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                        set {
 
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                                visible = value;
 
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                                ParentDialog.UpdateButton (this);
 
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                        }
 
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                }
 
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                public bool Sensitive { 
 
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                        get { return sensitive; }
 
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                        set {
 
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                                sensitive = value;
 
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                                ParentDialog.UpdateButton (this);
 
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                        }
 
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                }
 
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                internal void RaiseClicked ()
 
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                {
 
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                        if (Clicked != null)
 
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                                Clicked (this, EventArgs.Empty);
 
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                }
 
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                public event EventHandler Clicked;
 
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        }
 
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}
 
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