Question

我想为状态栏项目创建一个菜单，如Tapbot的PastebotSync应用程序中所示：

有没有人有任何想法如何实现菜单顶部与顶部齐平的自定义区域？

我已经尝试过/想过一些可行的方法：

带有视图的标准NSMenuItem - 不与菜单顶部齐平
一些hack-ish代码将NSWindow放在菜单顶部的区域 - 不是很好，因为它在关闭时不会很好地淡出菜单
完全放弃NSMenu并使用NSView - 尚未尝试过但我真的不想制作一些假按钮或充当NSMenuItems的东西

任何人都有更好的想法或建议吗？

谢谢！

Answer 1

如果有人来看，我在Gap above NSMenuItem custom view

发布了一个解决方案

以下是代码：

@interface FullMenuItemView : NSView
@end

@implementation FullMenuItemView
- (void) drawRect:(NSRect)dirtyRect
{
    NSRect fullBounds = [self bounds];
    fullBounds.size.height += 4;
    [[NSBezierPath bezierPathWithRect:fullBounds] setClip];

    // Then do your drawing, for example...
    [[NSColor blueColor] set];
    NSRectFill( fullBounds );
}
@end

像这样使用：

CGFloat menuItemHeight = 32;

NSRect viewRect = NSMakeRect(0, 0, /* width autoresizes */ 1, menuItemHeight);
NSView *menuItemView = [[[FullMenuItemView alloc] initWithFrame:viewRect] autorelease];
menuItemView.autoresizingMask = NSViewWidthSizable;

yourMenuItem.view = menuItemView;

Answer 2

我在HoudahSpot 2的早期版本中也有同样的需求。我确实使用了一个限制：我的代码离开菜单底部有方角。

我已经放弃了这个设置，因为HoudahSpot中的BlitzSearch功能越来越需要一个更复杂的用户界面，我在NSMenu中使用NSViews遇到了其他限制。

无论如何，这是原始代码处理额外的3个像素：

- (void)awakeFromNib
{
 HIViewRef contentView;
 MenuRef menuRef = [statusMenu carbonMenuRef];
 HIMenuGetContentView (menuRef, kThemeMenuTypePullDown, &contentView);

 EventTypeSpec hsEventSpec[1] = {
  { kEventClassMenu, kEventMenuCreateFrameView }
 };

 HIViewInstallEventHandler(contentView,
          NewEventHandlerUPP((EventHandlerProcPtr)hsMenuCreationEventHandler),
          GetEventTypeCount(hsEventSpec),
          hsEventSpec,
          NULL,
          NULL);
}


#pragma mark -
#pragma mark Carbon handlers

static OSStatus hsMenuContentEventHandler( EventHandlerCallRef caller, EventRef event, void* refcon )
{
 OSStatus  err;

 check( GetEventClass( event ) == kEventClassControl );
 check( GetEventKind( event ) == kEventControlGetFrameMetrics );

 err = CallNextEventHandler( caller, event );
 if ( err == noErr )
 {
  HIViewFrameMetrics  metrics;

  verify_noerr( GetEventParameter( event, kEventParamControlFrameMetrics, typeControlFrameMetrics, NULL,
          sizeof( metrics ), NULL, &metrics ) );

  metrics.top = 0;

  verify_noerr( SetEventParameter( event, kEventParamControlFrameMetrics, typeControlFrameMetrics,
          sizeof( metrics ), &metrics ) );
 }

 return err;
}

static OSStatus hsMenuCreationEventHandler( EventHandlerCallRef caller, EventRef event, void* refcon )
{
 OSStatus  err = eventNotHandledErr;

 if ( GetEventKind( event ) == kEventMenuCreateFrameView)
 {
  err = CallNextEventHandler( caller, event );
  if ( err == noErr )
  {
   static const EventTypeSpec  kContentEvents[] =
   {
    { kEventClassControl, kEventControlGetFrameMetrics }
   };

   HIViewRef          frame;
   HIViewRef          content;

   verify_noerr( GetEventParameter( event, kEventParamMenuFrameView, typeControlRef, NULL,
           sizeof( frame ), NULL, &frame ) );
   verify_noerr( HIViewFindByID( frame, kHIViewWindowContentID, &content ) );
   HIViewInstallEventHandler( content, hsMenuContentEventHandler, GetEventTypeCount( kContentEvents ),
            kContentEvents, 0, NULL );
  }
 }

 return err;
}

抱歉，我忘记了这一点：

- (MenuRef) carbonMenuRef
{
    MenuRef carbonMenuRef = NULL;

    if (carbonMenuRef == NULL) {
        extern MenuRef _NSGetCarbonMenu(NSMenu *);
        carbonMenuRef = _NSGetCarbonMenu(self);

        if (carbonMenuRef == NULL) {
            NSMenu *theMainMenu = [NSApp mainMenu];
            NSMenuItem *theDummyMenuItem = [theMainMenu addItemWithTitle: @"sub"  action: NULL keyEquivalent: @""];

            if (theDummyMenuItem != nil) {
                [theDummyMenuItem setSubmenu:self];
                [theDummyMenuItem setSubmenu:nil];
                [theMainMenu removeItem:theDummyMenuItem];

                carbonMenuRef = _NSGetCarbonMenu(self);
            }
        }
    }

    if (carbonMenuRef == NULL) {
        extern MenuRef _NSGetCarbonMenu2(NSMenu *);
        carbonMenuRef = _NSGetCarbonMenu2(self);
    }

    return carbonMenuRef;
}

为状态栏项反向设计NSMenu

2 个答案: