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//
// ButtonBackend.cs
//
// Author:
// Luís Reis <luiscubal@gmail.com>
// Eric Maupin <ermau@xamarin.com>
//
// Copyright (c) 2012 Luís Reis
// Copyright (c) 2012 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 System.Windows;
using System.Windows.Controls.Primitives;
using System.Windows.Markup;
using System.Windows.Media;
using SWC = System.Windows.Controls;
using Xwt.Backends;
using Xwt.Engine;
namespace Xwt.WPFBackend
{
public class ButtonBackend : WidgetBackend, IButtonBackend
{
public ButtonBackend ()
: this (new WpfButton ())
{
}
protected ButtonBackend (ButtonBase impl)
{
if (impl == null)
throw new ArgumentNullException ("impl");
Widget = impl;
}
protected ButtonBase Button {
get { return (ButtonBase)Widget; }
}
protected new IButtonEventSink EventSink {
get { return (IButtonEventSink)base.EventSink; }
}
public void SetButtonStyle (ButtonStyle style) {
switch (style)
{
case ButtonStyle.Normal:
Button.ClearValue (SWC.Control.BackgroundProperty);
Button.ClearValue (SWC.Control.BorderThicknessProperty);
Button.ClearValue (SWC.Control.BorderBrushProperty);
break;
case ButtonStyle.Flat:
Button.Background = Brushes.Transparent;
Button.BorderBrush = Brushes.Transparent;
break;
case ButtonStyle.Borderless:
Button.ClearValue (SWC.Control.BackgroundProperty);
Button.BorderThickness = new Thickness (0);
Button.BorderBrush = Brushes.Transparent;
break;
}
Button.InvalidateMeasure ();
}
public virtual void SetButtonType (ButtonType type) {
switch (type) {
case ButtonType.Normal:
Button.Style = null;
break;
case ButtonType.DropDown:
Button.Style = (Style) ButtonResources ["NormalDropDown"];
break;
}
Button.InvalidateMeasure ();
}
public void SetContent (string label, object imageBackend, ContentPosition position)
{
if (imageBackend == null)
Button.Content = label;
else
{
SWC.DockPanel grid = new SWC.DockPanel ();
var img = DataConverter.AsImageSource (imageBackend);
SWC.Image imageCtrl = new SWC.Image
{
Source = img,
Width = img.Width,
Height = img.Height
};
SWC.DockPanel.SetDock (imageCtrl, DataConverter.ToWpfDock (position));
grid.Children.Add (imageCtrl);
if (!string.IsNullOrEmpty (label)) {
SWC.Label labelCtrl = new SWC.Label ();
labelCtrl.Content = label;
grid.Children.Add (labelCtrl);
}
Button.Content = grid;
}
Button.InvalidateMeasure ();
}
public override void EnableEvent (object eventId)
{
base.EnableEvent (eventId);
if (eventId is ButtonEvent)
{
switch ((ButtonEvent)eventId)
{
case ButtonEvent.Clicked: Button.Click += HandleWidgetClicked; break;
}
}
}
public override void DisableEvent (object eventId)
{
base.DisableEvent (eventId);
if (eventId is ButtonEvent)
{
switch ((ButtonEvent)eventId)
{
case ButtonEvent.Clicked: Button.Click -= HandleWidgetClicked; break;
}
}
}
void HandleWidgetClicked (object sender, EventArgs e)
{
Toolkit.Invoke (EventSink.OnClicked);
}
private static ResourceDictionary buttonsDictionary;
protected static ResourceDictionary ButtonResources
{
get
{
if (buttonsDictionary == null) {
Uri uri = new Uri ("pack://application:,,,/Xwt.WPF;component/XWT.WPFBackend/Buttons.xaml");
buttonsDictionary = (ResourceDictionary)XamlReader.Load (System.Windows.Application.GetResourceStream (uri).Stream);
}
return buttonsDictionary;
}
}
}
class WpfButton : SWC.Button, IWpfWidget
{
public WidgetBackend Backend { get; set; }
protected override System.Windows.Size MeasureOverride (System.Windows.Size constraint)
{
var s = base.MeasureOverride (constraint);
return Backend.MeasureOverride (constraint, s);
}
protected override System.Windows.Size ArrangeOverride (System.Windows.Size arrangeBounds)
{
return base.ArrangeOverride (arrangeBounds);
}
}
}
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