gistfile1.txt

using System;
using System.Collections.Generic;
using System.Linq;
using MonoMac.Foundation;
using MonoMac.AppKit;
using System.Drawing;
using MonoMac.CoreGraphics;

namespace MoreMacHacking
{
	public class MyDel : NSSplitViewDelegate
	{
		readonly int[] MIN_WIDTH_PANE = {219, 300}; 

		public override bool ShouldAdjustSize (NSSplitView splitView, NSView view)
		{
			if (view == splitView.Subviews [0])
				return false;
			else
				return (view.Frame.Size.Width > MIN_WIDTH_PANE [1]);
		}

		public override float SetMinCoordinateOfSubview (NSSplitView splitView, float proposedMinimumPosition, int subviewDividerIndex)
		{
			if (subviewDividerIndex != 0)
			    throw new System.NotImplementedException ();
			return MIN_WIDTH_PANE [subviewDividerIndex];
		}
	}

	public partial class MainWindow : MonoMac.AppKit.NSWindow
	{
		#region Constructors

		// Called when created from unmanaged code
		public MainWindow (IntPtr handle) : base (handle)
		{
			Initialize ();
		}
		
		// Called when created directly from a XIB file
		[Export ("initWithCoder:")]
		public MainWindow (NSCoder coder) : base (coder)
		{
			Initialize ();
		}
		
		// Shared initialization code
		void Initialize ()
		{
		}

		public override void AwakeFromNib ()
		{
			base.AwakeFromNib ();
			NSView lhs = new NSView (new RectangleF (0, 0, 100, 100));
			lhs.WantsLayer = true;
			lhs.Layer.BackgroundColor = NSColor.Red.CGColor;

			NSView rhs = new NSView (new RectangleF (0, 0, 100, 100));
			rhs.WantsLayer = true;
			rhs.Layer.BackgroundColor = NSColor.Blue.CGColor;


			NSView mhs = new NSView (new RectangleF (0, 0, 100, 100));
			mhs.WantsLayer = true;
			mhs.Layer.BackgroundColor = NSColor.Orange.CGColor;

			NSSplitView view = new NSSplitView (this.ContentView.Frame);
			view.AddSubview (lhs);
			view.AddSubview (mhs);
			view.AddSubview (rhs);
			view.AdjustSubviews ();
			view.Delegate = new MyDel ();

			ContentView.AddSubview (view);
		}

		#endregion
	}
}