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Optimization: cache and share default fonts

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@7327 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Nicola Pero 2000-09-01 23:49:53 +00:00
parent f8b3c153be
commit 7439e9c4e8
1 changed files with 77 additions and 5 deletions
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82
Source/NSFont.m
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@ -36,6 +36,14 @@
#include <AppKit/NSFontManager.h>
#include <AppKit/GSFontInfo.h>
/* We cache all the 4 default fonts after we first get them.
But when a default font is changed, the variable is set to YES
so all default fonts are forced to be recomputed. */
static BOOL systemCacheNeedsRecomputing = NO;
static BOOL boldSystemCacheNeedsRecomputing = NO;
static BOOL userCacheNeedsRecomputing = NO;
static BOOL userFixedCacheNeedsRecomputing = NO;
@implementation NSFont
/* Class variables*/
@ -75,6 +83,11 @@ setNSFont(NSString* key, NSFont* font)
[standardDefaults setObject: [font fontName] forKey: key];
systemCacheNeedsRecomputing = YES;
boldSystemCacheNeedsRecomputing = YES;
userCacheNeedsRecomputing = YES;
userFixedCacheNeedsRecomputing = YES;
/* Don't care about errors*/
[standardDefaults synchronize];
}
@ -93,28 +106,87 @@ setNSFont(NSString* key, NSFont* font)
}
}
/* Getting the preferred user fonts*/
/* Getting the preferred user fonts.
Important: caching (this also implies sharing) the default fonts of
cells and views has a considerable impact on performance. */
// This is deprecated in MacOSX
+ (NSFont*) boldSystemFontOfSize: (float)fontSize
{
return getNSFont (@"NSBoldFont", @"Helvetica-Bold", fontSize);
static NSFont *font = nil;
if (fontSize != 0)
{
return getNSFont (@"NSBoldFont", @"Helvetica-Bold", fontSize);
}
else
{
if ((font == nil) || (boldSystemCacheNeedsRecomputing == YES))
{
ASSIGN (font, getNSFont (@"NSBoldFont", @"Helvetica-Bold", 0));
boldSystemCacheNeedsRecomputing = NO;
}
return font;
}
}
// This is deprecated in MacOSX
+ (NSFont*) systemFontOfSize: (float)fontSize
{
return getNSFont (@"NSFont", @"Helvetica", fontSize);
static NSFont *font = nil;
if (fontSize != 0)
{
return getNSFont (@"NSFont", @"Helvetica", fontSize);
}
else
{
if ((font == nil) || (systemCacheNeedsRecomputing == YES))
{
ASSIGN (font, getNSFont (@"NSFont", @"Helvetica", 0));
systemCacheNeedsRecomputing = NO;
}
return font;
}
}
+ (NSFont*) userFixedPitchFontOfSize: (float)fontSize
{
return getNSFont (@"NSUserFixedPitchFont", @"Courier", fontSize);
static NSFont *font = nil;
if (fontSize != 0)
{
return getNSFont (@"NSUserFixedPitchFont", @"Courier", fontSize);
}
else
{
if ((font == nil) || (userFixedCacheNeedsRecomputing == YES))
{
ASSIGN (font, getNSFont (@"NSUserFixedPitchFont", @"Courier", 0));
userFixedCacheNeedsRecomputing = NO;
}
return font;
}
}
+ (NSFont*) userFontOfSize: (float)fontSize
{
return getNSFont (@"NSUserFont", @"Helvetica", fontSize);
static NSFont *font = nil;
if (fontSize != 0)
{
return getNSFont (@"NSUserFont", @"Helvetica", fontSize);
}
else
{
if ((font == nil) || (userCacheNeedsRecomputing == YES))
{
ASSIGN (font, getNSFont (@"NSUserFont", @"Helvetica", 0));
userCacheNeedsRecomputing = NO;
}
return font;
}
}
+ (NSArray *)preferredFontNames