NSStatusItem中的NSProgressIndicator

Question

我有NSStatusItem与自定义NSView显示图像.无论菜单是否打开,它都会显示不同的图像:

 isMenuVisible = NO;

- (void)awakeFromNib {

statusItem = [[NSStatusBar systemStatusBar] statusItemWithLength:NSVariableStatusItemLength];
[statusItem retain];

dragStatusView = [[DragStatusView alloc] init];
[dragStatusView retain];
dragStatusView.statusItem = statusItem;
[dragStatusView setMenu:statusMenu];
[dragStatusView setToolTip:NSLocalizedString(@"Menubar Countdown",
                                             @"Status Item Tooltip")];
[statusItem setView:dragStatusView];
[dragStatusView setTitle:@"11"];
}

- (void)drawImage:(NSImage *)aImage centeredInRect:(NSRect)aRect{
NSRect imageRect = NSMakeRect((CGFloat)round(aRect.size.width*0.5f-aImage.size.width*0.5f),
                              (CGFloat)round(aRect.size.height*0.5f-aImage.size.height*0.5f),
                              aImage.size.width, 
                              aImage.size.height);
[aImage drawInRect:imageRect fromRect:NSZeroRect operation:NSCompositeSourceOver  fraction:1.0f];
}

- (void)drawRect:(NSRect)rect {
// Draw status bar background, highlighted if menu is showing
[statusItem drawStatusBarBackgroundInRect:[self bounds]
                            withHighlight:isMenuVisible];




if(isMenuVisible) {
    [self drawImage:image2 centeredInRect:rect];
}else {
    [self drawImage:image1 centeredInRect:rect];

}}

(当然这不是一切,但我希望所有相关代码能够理解我的问题)

现在我想在这个NSView中显示一个NSProgressIndicator(在这个NSStatusItem中),如果上传正在进行,这意味着1.在上传开始时设置NSProgressIndicator 2.收到了什么？==>隐藏NSProgressIndicator再次显示图像.

我怎么解决这个问题？

请帮我.谢谢

Answer 1

以下是基于视图的状态项的解决方案.

NSStatusBar *bar = [NSStatusBar systemStatusBar];
self.theItem = [bar statusItemWithLength:NSVariableStatusItemLength];
self.statusView = [[NSView alloc] initWithFrame:NSMakeRect(0, 0, 40, 20)];
NSProgressIndicator* progress = [[NSProgressIndicator alloc] initWithFrame:NSMakeRect(0, 0, 40, 20)];
[progress setIndeterminate:NO];
[self.statusView addSubview:progress];
self.theItem.view = self.statusView;

您还可以
在进度更改的基于菜单的状态项中绘制自己的进度条,只需更改状态项的图像即可.

- (void) updateIconWithProgress:(float)aProgress
{
    NSImage* image = [NSImage imageNamed:@"small_icon_16_16.png"];
    NSImage* img = [image copy];
    [img lockFocus];

    NSRect rect = NSMakeRect(2, 4, 12.0*aProgress, 8.0);
    [[NSColor blueColor] set];
    [NSBezierPath fillRect:rect];

    [img unlockFocus];
    [self.theItem setImage:img];
}

ps代码是为ARC(自动引用计数)编写的,因此没有保留或释放.