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Added CGRectNull support to CGRectUnion.

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Reviewed by me.
This commit is contained in:
Francisco Ryan Tolmasky I
2009-10-26 22:43:51 -07:00
parent 66b447de7b
commit 7b14f41cd8
1 changed files with 11 additions and 0 deletions
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AppKit/CoreGraphics/CGGeometry.j
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@@ -70,6 +70,8 @@ _function(CGInsetMakeZero())
_function(CGInsetMakeCopy(anInset))
_function(CGInsetIsEmpty(anInset))
CGRectNull = _CGRectMake(Infinity, Infinity, 0.0, 0.0);
/*!
@addtogroup appkit
@{
@@ -174,6 +176,15 @@ function CGRectStandardize(aRect)
function CGRectUnion(lhsRect, rhsRect)
{
var lhsRectIsNull = !lhsRect || lhsRect === CGRectNull,
rhsRectIsNull = !rhsRect || rhsRect === CGRectNull;
if (lhsRectIsNull)
return rhsRectIsNull ? CGRectNull : rhsRect;
if (rhsRectIsNull)
return lhsRectIsNull ? CGRectNull : lhsRect;
var minX = MIN(_CGRectGetMinX(lhsRect), _CGRectGetMinX(rhsRect)),
minY = MIN(_CGRectGetMinY(lhsRect), _CGRectGetMinY(rhsRect)),
maxX = MAX(_CGRectGetMaxX(lhsRect), _CGRectGetMaxX(rhsRect)),