Question

For my Gui I want to use the following system: The way it works is that, if the widget under the mouse does not consume a mouse or kb event, it is passed to that widget s parent until it is consumed or the desktop is reached.

Just one thing puzzles me about it. Does that mean if a Button, for whatever reason has a Label as one of its children. If I click the label, would that not mean that my button, which is under the label would click (since a label does not consume the mouse), which is undesired in this case. Does that mean I d have to do if(mouseEvent.source == this){do button stuff} ?

增编

Answer 1

如果标签是儿童植被,那么,如果是,标签将试图吃饭,失败(通常标签上没有手法),从而将事件退回到纽伦。

这样做最容易的方法是找到拉贝尔等级的子级,并超越处理功能(假设这在你的工具包中是可能的,它应当放在任何体面的工具包中)。然后,你可以行使职能,把烟火点击,并将任何其他事件退回到纽伦。

Comparing pointers is probably a bad idea and is slightly dependent on the way the toolkit is implemented - for instance, it might deem the source as the button (because that s what it expects), not the label.

Though I find it highly strange that a Label is a widget in itself.....

Answer 2

It looks like you need a special kind of "Label" which consumes mouse events. You should be able to create a customized widget (derived from Label) that consumes mouse events for this specific case.

如果Label的植被来自不能衍生/替代的第三方,那么你应将Label列入另一个植被: 单纯的植被消耗了 mo,只有一名孩子,即原来的拉贝尔。

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