如何在OSX中更改NSWindow标题栏的颜色

概述经过长时间的搜索关于NSWindow标题栏颜色和标题颜色，我找到了一个简单的绘图解决方案。我发贴这个分享我的知识。 子类名为MyTitleView的NSView，并添加以下代码 - (void)drawString:(NSString *)string inRect:(NSRect)rect { static NSDictionary *att = nil; if (!att) { 经过长时间的搜索关于NSWindow标题栏颜色和标题颜色，我找到了一个简单的绘图解决方案。我发贴这个分享我的知识。解决方法 子类名为MyTitleVIEw的NSVIEw，并添加以下代码

- (voID)drawString:(Nsstring *)string inRect:(NSRect)rect {    static NSDictionary *att = nil;    if (!att) {        NSMutableParagraphStyle *style = [[NSParagraphStyle defaultParagraphStyle] mutablecopy];        [style setlineBreakMode:NSlineBreakByTruncatingTail];        [style setAlignment:NSCenterTextAlignment];        att = [[NSDictionary alloc] initWithObjectsAndKeys: style,NSParagraphStyleAttributename,[NScolor whitecolor],NSForegroundcolorAttributename,[NSFont FontWithname:@"Helvetica" size:12],NSFontAttributename,nil];        [style release];    }    NSRect TitlebarRect = NSMakeRect(rect.origin.x+20,rect.origin.y-4,rect.size.wIDth,rect.size.height);    [string drawInRect:TitlebarRect withAttributes:att];}- (voID)drawRect:(NSRect)dirtyRect{    NSRect windowFrame = [NSWindow  frameRectForContentRect:[[[self window] contentVIEw] bounds] styleMask:[[self window] styleMask]];    NSRect contentBounds = [[[self window] contentVIEw] bounds];    NSRect TitlebarRect = NSMakeRect(0,self.bounds.size.wIDth,windowFrame.size.height - contentBounds.size.height);    TitlebarRect.origin.y = self.bounds.size.height - TitlebarRect.size.height;    NSRect topHalf,bottomHalf;    NSdivIDeRect(TitlebarRect,&topHalf,&bottomHalf,floor(TitlebarRect.size.height / 2.0),NSMaxYEdge);    NSBezIErPath * path = [NSBezIErPath bezIErPathWithRoundedRect:self.bounds xRadius:4.0 yRadius:4.0];    [[NSBezIErPath bezIErPathWithRect:TitlebarRect] addClip];    NSGradIEnt * gradIEnt1 = [[[NSGradIEnt alloc] initWithStartingcolor:[NScolor colorWithCalibrateDWhite:0.0 Alpha:1.0] endingcolor:[NScolor colorWithCalibrateDWhite:1 Alpha:1.0]] autorelease];    NSGradIEnt * gradIEnt2 = [[[NSGradIEnt alloc] initWithStartingcolor:[NScolor colorWithCalibrateDWhite:1 Alpha:1.0] endingcolor:[NScolor colorWithCalibrateDWhite:0 Alpha:1.0]] autorelease];  [path addClip];//    [[NScolor colorWithCalibrateDWhite:0.00 Alpha:1.0] set];//   [path fill];   [gradIEnt1 drawInRect:topHalf angle:270.0];    [gradIEnt2 drawInRect:bottomHalf angle:270.0];    [[NScolor blackcolor] set];    NSRectFill(NSMakeRect(0,-4,1.0));    [self drawString:@"My Title" inRect:TitlebarRect];}

在appDelegate中导入MyTitleVIEw类并添加以下代码

- (voID)applicationDIDFinishLaunching:(NSNotification *)aNotification{    NSRect boundsRect = [[[_window contentVIEw] supervIEw] bounds];    BlackTitlebarVIEw * TitlevIEw = [[BlackTitlebarVIEw alloc] initWithFrame:boundsRect];    [TitlevIEw setautoresizingMask:(NSVIEwWIDthSizable | NSVIEwHeightSizable)];    [[[_window contentVIEw] supervIEw] addSubvIEw:TitlevIEw @R_403_4612@ed:NSWindowBelow relativeTo:[[[[_window contentVIEw] supervIEw] subvIEws] objectAtIndex:0]];}

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