// This is a  customer modified Auto Win+Left/Right switcher which will snap your application to the left or right of the screen based 
// on which half of your screen your application is mostly in at the moment.

// BFS customer Mark Ozga (markozga@alumni.depaul.edu) has made changes to the original code to allow for 70%/30% splits 
// as one does in userspace via keyboard shortcuts and mouse gestures.

// The script is invoked cleanly as a TitleBar Button or mapped to key auch as the seldom used Apps key.

using System;
using System.Drawing;

// The 'windowHandle' parameter will contain the window handle for the:
//   - Active window when run by hotkey
//   - Window Location target when run by a Window Location rule
//   - TitleBar Button owner when run by a TitleBar Button
//   - Jump List owner when run from a Taskbar Jump List
//   - Currently focused window if none of these match

public static class DisplayFusionFunction
{
	public static void Run(IntPtr windowHandle)
	{		
		//check to see if there was an error. if there was, exit function
		if (windowHandle == IntPtr.Zero)
			return;
			
		//get the position of the window in the monitor, and the current monitor
		Rectangle windowRect = BFS.Window.GetBounds(windowHandle);
		Rectangle monitorRect = BFS.Monitor.GetMonitorBoundsByWindow(windowHandle);		
		
		//maths to imagine an imaginary dot at the top of every window
		int MiddleOfWindow = (windowRect.Width / 2);
		//maths used to determine if the imaginary dot will be on either side of an imaginery fence.
		int MiddleOfMonitor = (monitorRect.Width / 2);
		//maths used to determine the actual position of our imaginary dot within the confines of the screen 
		int PositionOfWindow = (windowRect.X + MiddleOfWindow);
		
		//a test to determine if the middle of our application is closer to right side of the screen
		if(  PositionOfWindow >= MiddleOfMonitor )
            {
                //if we are here then the middle of our applications must be closer to the RIGHT side of the screen
                //let Windows to use its routines to snap it, restore it, or otherwise move the window
                BFS.Input.SendKeys("{WIN}({VK_39})");
            }
    
        if(  PositionOfWindow < MiddleOfMonitor  ) 
            {
                //if we are here we can assume the imaginary dot is closer to the LEFT side of the screen
                //let Windows to use its routines to snap it, restore it, or otherwise move the window
                BFS.Input.SendKeys("{WIN}({VK_37})");
			}			
	}
}