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Re: RectTracker filled with black [message #14128 is a reply to message #14124]

Wed, 13 February 2008 16:12

cbpporter is currently offline

cbpporter
Messages: 1427
Registered: September 2007

Ultimate Contributor

I found a subtle lack of functionality from fixing the black rect. By swapping the coordinates, you are basically mirroring your rect so that it winds up in the forth quadrant and get the coordinates as if you would translate that rect to a different position. This is Ok if you want just to draw it, but there is no way to determine the relationship of you initial mouse position and the final one. Since Track returns a rect, I want to be able to determine the relative position of the coordinates only with the information in the rect, so it must return values where left > right or top > bottom. This can easily be fixed by moving the extra check and swap from MouseMove to DrawRect.

There is another fix that must be done. The relationship between the edge of the rect and the mouse position is not uniform as you drag across quadrants, both in the modified version and in the original one. I can fix this too easily, but I need to know how Mirek wants it to behave.

Q4: Rect edge is one pixel distance from mouse on both dimensions
Q2: Rect edge is identical to mouse
Q1&2: Rect edge is one pixel distance from mouse only on one dimension

What should the convention be?

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[Message index]

		RectTracker filled with black By: cbpporter on Wed, 13 February 2008 06:54
		Re: RectTracker filled with black By: mirek on Wed, 13 February 2008 08:44
		Re: RectTracker filled with black By: mrjt on Wed, 13 February 2008 12:13
		Re: RectTracker filled with black By: cbpporter on Wed, 13 February 2008 12:40
		Re: RectTracker filled with black By: cbpporter on Wed, 13 February 2008 16:12
		Re: RectTracker filled with black By: cbpporter on Wed, 20 February 2008 09:33
		Re: RectTracker filled with black By: mrjt on Wed, 20 February 2008 10:55
		Re: RectTracker filled with black By: cbpporter on Wed, 20 February 2008 13:28
		Re: RectTracker filled with black By: mrjt on Wed, 20 February 2008 14:13
		Re: RectTracker filled with black By: cbpporter on Wed, 20 February 2008 14:19
		Re: RectTracker filled with black By: mrjt on Wed, 20 February 2008 14:52
		Re: RectTracker filled with black By: cbpporter on Wed, 20 February 2008 14:58
		Re: RectTracker filled with black By: cbpporter on Sun, 24 February 2008 22:21
		Re: RectTracker filled with black By: mirek on Tue, 26 February 2008 21:13
		Re: RectTracker filled with black By: cbpporter on Thu, 28 February 2008 11:12
		Re: RectTracker filled with black By: cbpporter on Fri, 29 February 2008 15:08
		Re: RectTracker filled with black By: mrjt on Fri, 29 February 2008 15:20
		Re: RectTracker filled with black By: cbpporter on Fri, 29 February 2008 15:34
		Re: RectTracker filled with black By: mirek on Mon, 03 March 2008 20:48
		Re: RectTracker filled with black By: cbpporter on Tue, 04 March 2008 10:24
		Re: RectTracker filled with black By: cbpporter on Thu, 20 March 2008 14:35
		Re: RectTracker filled with black By: cbpporter on Thu, 20 March 2008 15:31
		Re: RectTracker filled with black By: mirek on Sat, 22 March 2008 20:33
		Re: RectTracker filled with black By: mirek on Wed, 20 February 2008 13:57

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