有没有办法将光标设置为文本视图上的指针而无需子类化NSTextView?
我读了很多关于NSTrackingAreas,测试了很多例子,设置了不同的跟踪选项并实现了不同的方法,但光标仍然是I-Beam。我已经读过它是一个AppKit自动功能,所以如何防止这种情况?
谢谢!
答案 0 :(得分:4)
我必须继承。经过几个小时测试了很多方法和选项后,这终于奏效了:
@implementation ATTextView
- (id)initWithFrame:(NSRect)frame
{
self = [super initWithFrame:frame];
if (self) {
_trackingArea = [[NSTrackingArea alloc]initWithRect:[self bounds] options: (NSTrackingMouseMoved | NSTrackingActiveInKeyWindow) owner:self userInfo:nil];
[self addTrackingArea:_trackingArea];
}
return self;
}
- (void)mouseMoved:(NSEvent *)event
{
if ([self isEditable]) [[NSCursor IBeamCursor] set];
else [[NSCursor pointingHandCursor] set];
}
- (void)updateTrackingAreas {
[super updateTrackingAreas];
[self removeTrackingArea:_trackingArea];
_trackingArea = [[NSTrackingArea alloc] initWithRect:[self bounds] options: (NSTrackingMouseMoved | NSTrackingActiveInKeyWindow) owner:self userInfo:nil];
[self addTrackingArea:_trackingArea];
}
@end
只是为了找到正确的例子(Cocoa是80%的doc阅读和20%的编码): https://developer.apple.com/library/mac … 0i-CH8-SW1
答案 1 :(得分:2)
这对我来说使用Swift 3:
class HyperlinkTextField : NSTextField {
override func resetCursorRects() {
discardCursorRects()
addCursorRect(self.bounds, cursor: NSCursor.pointingHand())
}
}