制作一个GtkButton [英] Making a GtkButton round

问题描述

解决方案

• 调整样式。基本集中没有圆整选项。某些主题引擎可能会提供边框图像规格或圆度，但无法在任何地方使用。
  
• 强制一个看起来也是您想要的主题。这并不难，你只需加载一个gtkrc字符串来指定你想要的主题。您需要确保用户具有主题或者可以使用后备。


• 按钮的子类并自行绘制。一种方法是将边框和浮雕设置为0，打包图像，并响应状态变化事件以使用适当的预光（悬停）图像。另一种方法是重写揭发事件并按照您的意愿绘制按钮。

How can I make GtkBtton round in shape?

解决方案

There are a few options.

• Tweak the style. There is no roundness option in the base set. Some theme engines may provide border image specification or roundness but it will not work everywhere.
• Force a theme that looks the way you want it too. This is not too hard you just load a gtkrc string that specifies the theme you want. You will need to ensure users have the theme or are ok with the fallback.
• Subclass the button and draw it yourself. One way is to set border and relief to 0, pack an image, and respond to state change events to use appropriate pre-light (hover) images. Another way is to rewrite the expose event and draw the button as you wish.

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