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//
// ColorPickerBackend.cs
//
// Author:
// Lluis Sanchez Gual <lluis@xamarin.com>
//
// Copyright (c) 2014 Xamarin, Inc (http://www.xamarin.com)
//
// 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;
#if MONOMAC
using nint = System.Int32;
using nfloat = System.Single;
using MonoMac.AppKit;
#else
using AppKit;
#endif
namespace Xwt.Mac
{
public class ColorPickerBackend: ViewBackend<NSColorWell,IColorPickerEventSink>, IColorPickerBackend
{
public override void Initialize ()
{
ViewObject = new MacColorWell (EventSink, ApplicationContext);
}
public Xwt.Drawing.Color Color {
get { return Widget.Color.ToXwtColor (); }
set { Widget.Color = value.ToNSColor (); }
}
public bool SupportsAlpha { get; set; }
public string Title { get; set; }
public void SetButtonStyle (ButtonStyle style)
{
// The Borderless property can't be used because when set the NSColorPanel popup
// is not shown when the picker is clicked.
}
public override Size GetPreferredSize (SizeConstraint widthConstraint, SizeConstraint heightConstraint)
{
return new Size (35, 20);
}
}
class MacColorWell: NSColorWell, IViewObject
{
IColorPickerEventSink eventSink;
ApplicationContext context;
public MacColorWell (IColorPickerEventSink eventSink, ApplicationContext context)
{
this.eventSink = eventSink;
this.context = context;
}
static string defaultTitle;
public override void Activate (bool exclusive)
{
NSColorPanel.SharedColorPanel.ShowsAlpha = ((ColorPickerBackend)Backend).SupportsAlpha;
if (defaultTitle == null)
defaultTitle = NSColorPanel.SharedColorPanel.Title;
NSColorPanel.SharedColorPanel.Title = ((ColorPickerBackend)Backend).Title ?? defaultTitle;
base.Activate (exclusive);
}
public bool SupportsAlpha { get; set; }
public ViewBackend Backend { get; set; }
public NSView View {
get { return this; }
}
public override NSColor Color {
get {
return base.Color;
}
set {
base.Color = value;
if (context != null)
context.InvokeUserCode (eventSink.OnColorChanged);
}
}
}
}
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