简单的mouseover效果对NSButton [英] Simple mouseover effect on NSButton

问题描述

我为自定义渲染创建了一个自定义 NSButtonCell 。

I am creating a custom NSButtonCell for a custom rendering.

现在，我想有不同的方面，取决于鼠标是否在按钮上。如何获取此信息？

Now, I want to have different aspect depending if the mouse is over the button or not. How can I get this information?

感谢和问候，

推荐答案

步骤1：创建带跟踪区域的按钮

Step 1: Create the Button with tracking area

 NSButton *myButton = [[NSButton alloc] initWithFrame:NSMakeRect(100, 7, 100, 50)];
[myButton setTitle:@"sample"];

[self.window.contentView addSubview:myButton];
// Insert code here to initialize your application
NSTrackingArea* trackingArea = [[NSTrackingArea alloc]
                                initWithRect:[myButton bounds]
                                options:NSTrackingMouseEnteredAndExited | NSTrackingActiveAlways
                                owner:self userInfo:nil];
[myButton addTrackingArea:trackingArea];

步骤：2实施以下方法

- (void)mouseEntered:(NSEvent *)theEvent{
NSLog(@"entered");
[[myButton cell] setBackgroundColor:[NSColor blueColor]];


}

- (void)mouseExited:(NSEvent *)theEvent{
[[myButton cell] setBackgroundColor:[NSColor redColor]];
NSLog(@"exited");

}

这篇关于简单的mouseover效果对NSButton的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！