会变色的背景透明NSButton

效果图:

//ColorTextButton.h

#import <Cocoa/Cocoa.h>@interface NSButton (ColorButton)
- (void)setHoverColor:(NSColor *)textColor;
- (void)setNormalColor:(NSColor *)textColor;
- (void)setPushColor:(NSColor *)textColor;
- (void)setDisableColor:(NSColor *)textColor;
- (void)setHeightLight:(BOOL)b;
@end@interface CustomButton : NSButton
@end@interface ColorButtonCell : NSButtonCell
{BOOL bClick;
}
@property (nonatomic,retain) NSColor *normal;
@property (nonatomic,retain) NSColor *hover;
@property (nonatomic,retain) NSColor *push;
@property (nonatomic,retain) NSColor *disable;
@end

//ColorTextButton.m

#import "ColorTextButton.h"@interface NSButtonCell()
- (void)_updateMouseTracking;
@end@implementation ColorButtonCell
@synthesize normal,hover,push,disable;
- (NSColor *)textColor
{NSAttributedString *attrTitle = [self attributedTitle];NSUInteger len = [attrTitle length];NSRange range = NSMakeRange(0, MIN(len, 1)); // take color from first charNSDictionary *attrs = [attrTitle fontAttributesInRange:range];NSColor *textColor = [NSColor controlTextColor];if (attrs) {textColor = [attrs objectForKey:NSForegroundColorAttributeName];}return textColor;
}- (void)setTextColor:(NSColor *)textColor
{NSMutableAttributedString *attrTitle = [[NSMutableAttributedString alloc] initWithAttributedString:[self attributedTitle]];NSUInteger len = [attrTitle length];NSRange range = NSMakeRange(0, len);[attrTitle addAttribute:NSForegroundColorAttributeName value:textColor range:range];[attrTitle fixAttributesInRange:range];[self setAttributedTitle:attrTitle];[attrTitle release];
}- (void)awakeFromNib
{[self setBordered:NO];[self setButtonType:NSMomentaryChangeButton];[self setTitle:[self title]];[self setTextColor:[NSColor blackColor]];
}- (void)mouseEntered:(NSEvent *)event
{if (hover != nil) {[self setTextColor:hover];}
}- (void)mouseExited:(NSEvent *)event
{NSLog(@"mouseExited\n");if(!bClick){if (normal != nil) {[self setTextColor:normal];NSLog(@"[%@]mouseExited\n",self );}}
}- (void)mouseDown:(NSEvent *)theEvent
{if (push != nil) {[self setTextColor:push];bClick = YES;}
}- (void)mouseUp:(NSEvent *)theEvent
{if (hover != nil) {[self setTextColor:hover];}
}- (void)_updateMouseTracking
{[super _updateMouseTracking];if ([self controlView] != nil && [[self controlView] respondsToSelector:@selector(_setMouseTrackingForCell:)]) {[[self controlView] performSelector:@selector(_setMouseTrackingForCell:) withObject:self];}
}- (void)setHeightLight:(BOOL)b
{if(b){if (hover != nil) {[self setTextColor:hover];bClick = YES;}}else{if (normal != nil) {[self setTextColor:normal];bClick = NO; }}
}@end@implementation NSButton (ColorButton)- (void)setHoverColor:(NSColor *)textColor
{[[self cell] setHover:textColor];
}- (void)setNormalColor:(NSColor *)textColor
{[[self cell] setNormal:textColor];
}- (void)setPushColor:(NSColor *)textColor
{[[self cell] setPush:textColor];
}- (void)setDisableColor:(NSColor *)textColor
{[[self cell] setDisable:textColor];
}- (void)setHeightLight:(BOOL)b
{[[self cell] setHeightLight:b];[self setNeedsDisplay:YES];
}@end@implementation CustomButton- (void)mouseDown:(NSEvent *)theEvent
{[[self cell] mouseDown:theEvent];[super mouseDown:theEvent];[[self cell] mouseUp:theEvent];
}@end

使用：

    [musicButton setHoverColor:[NSColor colorWithDeviceRed:0.5059 green:0.7451 blue:0.1961 alpha:1]];[musicButton setPushColor:[NSColor colorWithDeviceRed:0.5059 green:0.7451 blue:0.1961 alpha:1]];[musicButton setNormalColor:[NSColor colorWithDeviceRed:0.2471 green:0.2471 blue:0.2471 alpha:1]];

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