我试图在NSTextFields中垂直居中的文本,但其中一个是密码,所以它是一个NSSecureTextField.我把它设置为
MDVerticallyCenteredSecureTextFieldCell,具有以下实现：
- (NSRect)adjustedFrameToVerticallyCenterText:(NSRect)frame {
// super would normally draw text at the top of the cell
NSInteger offset = floor((NSHeight(frame) -
([[self font] ascender] - [[self font] descender])) / 2);
return NSInsetRect(frame,0.0,offset+10);
}
- (void)editWithFrame:(NSRect)aRect inView:(NSView *)controlView
editor:(NSText *)editor delegate:(id)delegate event:(NSEvent *)event {
[super editWithFrame:[self adjustedFrameToVerticallyCenterText:aRect]
inView:controlView editor:editor delegate:delegate event:event];
}
- (void)selectWithFrame:(NSRect)aRect inView:(NSView *)controlView
editor:(NSText *)editor delegate:(id)delegate
start:(NSInteger)start length:(NSInteger)length {
[super selectWithFrame:[self adjustedFrameToVerticallyCenterText:aRect]
inView:controlView editor:editor delegate:delegate
start:start length:length];
}
- (void)drawInteriorWithFrame:(NSRect)frame inView:(NSView *)view {
[super drawInteriorWithFrame:
[self adjustedFrameToVerticallyCenterText:frame] inView:view];
}
-(void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
{
[super drawWithFrame:cellFrame inView:controlView];
}
类似的子类已经适用于常规的NSTextFieldCells,只是不是安全的版本.苹果似乎以某种方式保护这些方法不被覆盖.
现在密码字段是唯一的一个不对齐：
任何人都可以提出一种方式,让NSSecureTextFieldCell子类的方法被调用,或者另一种方式来垂直居中的文本字段？
解决方法
尝试使用常规NSTextField,其中包含您的NSSecureTextFieldCell子类.我有同样的问题,这个组合有效.
