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//
// MacDesktopBackend.cs
//
// Author:
// Lluis Sanchez <lluis@xamarin.com>
//
// Copyright (c) 2013 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.Collections.Generic;
using AppKit;
using CoreGraphics;
using ObjCRuntime;
using Xwt.Backends;
namespace Xwt.Mac
{
public class MacDesktopBackend: DesktopBackend
{
#region implemented abstract members of DesktopBackend
internal static MacDesktopBackend Instance;
internal static Rectangle desktopBounds;
public MacDesktopBackend ()
{
Instance = this;
CalcDesktopBounds ();
}
internal void NotifyScreensChanged ()
{
CalcDesktopBounds ();
OnScreensChanged ();
}
static void CalcDesktopBounds ()
{
desktopBounds = new Rectangle ();
foreach (var s in NSScreen.Screens) {
var r = s.Frame;
desktopBounds = desktopBounds.Union (new Rectangle (r.X, r.Y, r.Width, r.Height));
}
}
public override Point GetMouseLocation ()
{
return ToDesktopPoint (NSEvent.CurrentMouseLocation);
}
public override IEnumerable<object> GetScreens ()
{
return NSScreen.Screens;
}
public override bool IsPrimaryScreen (object backend)
{
return NSScreen.Screens[0] == (NSScreen) backend;
}
public static Point ToDesktopPoint (CGPoint loc)
{
var result = new Point (loc.X, desktopBounds.Height - loc.Y);
if (desktopBounds.Y < 0)
result.Y += desktopBounds.Y;
return result;
}
public static Rectangle ToDesktopRect (CGRect r)
{
r.Y = (nfloat)desktopBounds.Height - r.Y - r.Height;
if (desktopBounds.Y < 0)
r.Y += (nfloat)desktopBounds.Y;
return new Rectangle (r.X, r.Y, r.Width, r.Height);
}
public static CGRect FromDesktopRect (Rectangle r)
{
r.Y = (float)desktopBounds.Height - r.Y - r.Height;
if (desktopBounds.Y < 0)
r.Y += (float)desktopBounds.Y;
return new CGRect ((nfloat)r.X, (nfloat)r.Y, (nfloat)r.Width, (nfloat)r.Height);
}
public override Rectangle GetScreenBounds (object backend)
{
var r = ((NSScreen)backend).Frame;
return ToDesktopRect (r);
}
public override Rectangle GetScreenVisibleBounds (object backend)
{
var r = ((NSScreen)backend).VisibleFrame;
return ToDesktopRect (r);
}
public override string GetScreenDeviceName (object backend)
{
return ((NSScreen)backend).DeviceDescription ["NSScreenNumber"].ToString ();
}
public override double GetScaleFactor (object backend)
{
return ((NSScreen)backend).BackingScaleFactor;
}
#endregion
}
}
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