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* Source/GSGuiPrivate.h: New rounding rounding function

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GSRoundTowardsInfinity which is simply floor(x+0.5)
* Source/NSBrowser.m:
* Source/NSSliderCell.m:
* Source/NSButtonCell.m:
* Source/NSClipView.m:
* Source/NSOutlineView.m:
* Source/NSRulerView.m:
Switch rint[f] to GSRoundTowardsInfinity


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@33539 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Eric Wasylishen 2011-07-12 21:12:22 +00:00
parent 0024ee69e2
commit 22bfbcc946
8 changed files with 45 additions and 19 deletions
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17
Source/GSGuiPrivate.h
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@ -32,6 +32,7 @@
#import <Foundation/NSBundle.h>
#include "GNUstepBase/preface.h"
#include <math.h>
/*
* Return the gnustep-gui bundle used to load gnustep-gui resources.
@ -71,5 +72,21 @@ static inline NSString *GSGuiLocalizedString (NSString *key, NSString *comment)
#endif
#define NSLocalizedString(key,comment) GSGuiLocalizedString (key, comment)
/**
* Rounds to the nearest integer, and in the case of ties, round to the
* larger integer. This is the recommended rounding function for rounding
* graphics points.
*
* For example:
* GSRoundTowardsInfinity(0.8) == 1.0
* GSRoundTowardsInfinity(0.5) == 1.0
* GSRoundTowardsInfinity(0.1) == 0.0
* GSRoundTowardsInfinity(-2.5) == -2.0
*/
static inline CGFloat GSRoundTowardsInfinity(CGFloat x)
{
return floor(x + 0.5);
}
#endif /* _GNUstep_H_GSGuiPrivate */