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using MonoMac.AppKit;
using MonoMac.Foundation;
using System;
using System.Drawing;
namespace RoundedTransparentWindow {
public partial class CustomWindow : NSWindow {
// Override the constructor that takes a rectangle and a style, and change the style to bordeless
[Export ("initWithContentRect:styleMask:backing:defer:")]
public CustomWindow (RectangleF rect, NSWindowStyle style, NSBackingStore backing, bool defer)
: base (rect, NSWindowStyle.Borderless, backing, defer)
{
// Go transparent
BackgroundColor = NSColor.Clear;
// pull window to front
//Level = NSWindowLevel.Status;
IsOpaque = false;
HasShadow = true;
}
public override void AwakeFromNib ()
{
base.AwakeFromNib ();
slider.Activated += delegate {
AlphaValue = slider.FloatValue;
};
}
// Custom windows that use the NSBorderlessWindowMask can't become key by default.
// Override this method so that controls in this window will be enabled.
public override bool CanBecomeKeyWindow {
get {
return true;
}
}
PointF start;
// Track potential drag operations
public override void MouseDown (NSEvent theEvent)
{
start = theEvent.LocationInWindow;
}
public override void MouseDragged (NSEvent theEvent)
{
var screenVisibleFrame = NSScreen.MainScreen.VisibleFrame;
var windowFrame = Frame;
var newOrigin = Frame.Location;
// Get mouse location in window coordinates
var current = theEvent.LocationInWindow;
// Update the origin with the difference between the new mouse location and the old mouse location.
newOrigin.X += (current.X - start.X);
newOrigin.Y += (current.Y - start.Y);
// Prevent window to go under menubar
if ((newOrigin.Y + windowFrame.Height) > (screenVisibleFrame.Y + screenVisibleFrame.Height))
newOrigin.Y = screenVisibleFrame.Y + screenVisibleFrame.Height - windowFrame.Height;
// Move to new lcoation
SetFrameOrigin (newOrigin);
}
}
[Register ("CustomView")]
public class CustomView : NSView {
NSImage circle, pentagon;
public CustomView (IntPtr handle) : base (handle) {}
public override void AwakeFromNib ()
{
circle = NSImage.ImageNamed ("circle");
pentagon = NSImage.ImageNamed ("pentagon");
NeedsDisplay = true;
}
public override void DrawRect (RectangleF dirtyRect)
{
NSColor.Clear.Set ();
NSGraphics.RectFill (Frame);
var image = Window.AlphaValue > 0.7 ? circle : pentagon;
image.Draw (new PointF (0, 0), Frame, NSCompositingOperation.SourceOver, 1);
NeedsDisplay = true;
Window.InvalidateShadow ();
}
}
class MainClass
{
static void Main (string[] args)
{
NSApplication.Init ();
NSApplication.Main (args);
}
}
}
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