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Added isOpaque, with minor optimization.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@5217 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Nicola Pero 1999-11-16 23:55:12 +00:00
parent 129bd9ca8c
commit 965c443e4f
1 changed files with 21 additions and 1 deletions
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22
Source/NSTextFieldCell.m
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@ -40,6 +40,8 @@ static NSColor *txtCol;
@interface NSTextFieldCell (PrivateColor)
+ (void) _systemColorsChanged: (NSNotification*)n;
// Minor optimization -- cache isOpaque.
- (BOOL) _isOpaque;
@end
@implementation NSTextFieldCell (PrivateColor)
@ -48,6 +50,15 @@ static NSColor *txtCol;
ASSIGN(bgCol, [NSColor textBackgroundColor]);
ASSIGN(txtCol, [NSColor textColor]);
}
- (BOOL) _isOpaque
{
if (_draws_background == NO
|| _background_color == nil
|| [_background_color alphaComponent] < 1.0)
return NO;
else
return YES;
}
@end
@implementation NSTextFieldCell
@ -82,6 +93,7 @@ static NSColor *txtCol;
ASSIGN(_text_color, txtCol);
ASSIGN(_background_color, bgCol);
_draws_background = NO;
_isOpaque = NO;
return self;
}
@ -108,7 +120,8 @@ static NSColor *txtCol;
//
- (void) setBackgroundColor: (NSColor *)aColor
{
ASSIGN (_background_color, aColor);
ASSIGN (_background_color, aColor);
_isOpaque = [self _isOpaque];
}
- (NSColor *) backgroundColor
@ -119,6 +132,7 @@ static NSColor *txtCol;
- (void) setDrawsBackground: (BOOL)flag
{
_draws_background = flag;
_isOpaque = [self _isOpaque];
}
- (BOOL) drawsBackground
@ -157,6 +171,11 @@ static NSColor *txtCol;
[super drawInteriorWithFrame: cellFrame inView: controlView];
}
- (BOOL) isOpaque
{
return _isOpaque;
}
//
// NSCoding protocol
//
@ -176,6 +195,7 @@ static NSColor *txtCol;
[aDecoder decodeValueOfObjCType: @encode(id) at: &_background_color];
[aDecoder decodeValueOfObjCType: @encode(id) at: &_text_color];
[aDecoder decodeValueOfObjCType: @encode(BOOL) at: &_draws_background];
_isOpaque = [self _isOpaque];
return self;
}