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Re: [Sc-devel] relative coordinates in SCCompositeView ?

James,
could you test it now again, please?
i committed a fix.
Jan

On Jan 20, 2008, at 5:01 AM, James Harkins wrote:
I see... the problem shows up when you have 3 layers of nesting. It works fine for 2, but breaks for 3. 

w = SCWindow.new("test", Rect(50, 50, 500, 500)).front;
f = SCCompositeView(w, Rect(50, 50, 150, 200)).background_(Color.red (alpha: 0.3)) 
	.relativeOrigin_(true);
g = SCCompositeView(f, Rect(10, 10, 100, 100)).background_ (Color.blue(alpha: 0.3)) 
	.relativeOrigin_(true);
h = SCCompositeView(g, Rect(30, 15, 60, 40)).background_ (Color.yellow(alpha: 0.3)) 
	.relativeOrigin_(true);
SCStaticText(h, Rect(10, 10, 40, 20)).background_ (Color.white).string_("hello"); 
w.refresh;
Since it would be bad to fix it for 3 layers but leave it broken for 4, here's a stress test. 

(
var ratio = rrand(1.25, 1.6), x = 0, lastx = 0, lastView;

if(0.5.coin) { ratio = ratio.reciprocal };

w = SCWindow("Albers ad infinitum", Rect(10, 10, 600, 600));
lastView = w;
while { x < 299 } {
	lastView = SCCompositeView(lastView,
		Rect(x - lastx, (x - lastx) * ratio, 600 - (2*x), 600 - (2*x)))
		.background_(Color.rand.alpha_(rrand(0.3, 0.7)))
		.relativeOrigin_(true);
	lastx = x;
	x = x + rrand(12, 36);
};
w.front;
)
For comparison, the same without relative origins. Both should look the same. (Quite pretty... Josef was no fool.) 

(
var ratio = rrand(1.25, 1.6), x = 0, lastx = 0, lastView;

if(0.5.coin) { ratio = ratio.reciprocal };

w = SCWindow("Albers ad infinitum", Rect(10, 10, 600, 600));
lastView = w;
while { x < 299 } {
	lastView = SCCompositeView(lastView,
		Rect(x, x * ratio, 600 - (2*x), 600 - (2*x)))
		.background_(Color.rand.alpha_(rrand(0.3, 0.7)))
		.relativeOrigin_(false);
	lastx = x;
	x = x + rrand(12, 36);
};
w.front;
)



hjh

: H. James Harkins
: jamshark70@xxxxxxxxxxxxxxxxx
: http://www.dewdrop-world.net
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Sing me a song no poet has yet chanted,
Sing me the universal."  -- Whitman

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