本文介绍了组件的 QML 屏幕坐标的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如果我有一个简单的、自包含的 QML 应用程序,我可以通过说得到一个组件的绝对屏幕坐标
If I have a simple, self-contained QML application, I can get the absolute screen coordinates of a component by saying
Component.onCompeted: {
var l = myThing.mapToItem(null, 0, 0)
console.log("X: " + l.x + " y: " + l.y)
}
其中 myThing 是文件中任何其他组件的 ID.但是,如果这个文件被合并到另一个 QML 文件中并且它定义的组件被重用,我就不再获得屏幕坐标;我得到了相对于执行上述语句的组件的局部坐标.
where myThing is the id of any other component in the file. However, if this file gets incorporated into another QML file and the component it defines is reused, I don't get the screen coordinates anymore; I get the local coordinates relative to the component where the statements above are executed.
如何获取项目的绝对屏幕坐标?
How can I get the absolute screen coordinates of items?
推荐答案
Component.onCompleted: {
var globalCoordinares = myThing.mapToItem(myThing.parent, 0, 0)
console.log("X: " + globalCoordinares.x + " y: " + globalCoordinares.y)
}
其中 myThing.parent
是您的主要组件.
where myThing.parent
is your main compontent.
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