PyQt QWidget的绝对位置(PyQt absolute position of QWidget)

PyQt QWidget的绝对位置(PyQt absolute position of QWidget)

我有一个QDialog ，它有一个布局，在这个布局中有多个QWidgets 。 现在我有一个按钮，如果用户按下这个按钮，我想显示一个“工具提示”，它显示更多信息。 这个“工具提示”必须包含一个布局。

为此我想使用一个绝对位置的QWidget 。 当我把这个问题中提到的代码放在一起时，解决方案对我来说不起作用。 我也尝试使用QtWidget.raise_()函数，但QWidget没有被显示。

我将我的代码剥离到以下示例中：

# creating content layout = QtWidgets.QVBoxLayout() for i in range(0, 10): layout.addWidget(QtWidgets.QLabel("line {} - bla bla bla bla bla bla".format(i))) widget = QtWidgets.QWidget() widget.setLayout(layout) # creating dialog and apply the layout dialog = QtWidgets.QDialog() dialog.setLayout(layout) # creating the absolute positioned widget absolute_layout = QtWidgets.QVBoxLayout() absolute_layout.addWidget(QtWidgets.QLabel("Absolute positioned QWidget")) absolute_layout.addWidget(QtWidgets.QLabel("With some widgets in itself")) absolute_layout.addWidget(QtWidgets.QLabel("With some widgets in itself")) absolute_layout.addWidget(QtWidgets.QLabel("With some widgets in itself")) absolute = QtWidgets.QWidget(dialog) absolute.setLayout(absolute_layout) # show the absolute widget and move it absolute.show() absolute.move(10, 10) absolute.raise_() dialog.show()

该对话框与layout的内容正确显示，但absolute不显示。

我究竟做错了什么？

I have a QDialog which has a layout, in this layout there are multiple QWidgets. Now I have a button, if the user presses this button I want to display a "tooltip" which displays some more information. This "tooltip" has to contain a layout.

For this I wanted to use a QWidget with an absolute position. When I put together the code mentioned in this question the solution does not work for me. I have also tried to use the QtWidget.raise_() function but the QWidget is not being displayed.

I stripped down my code to the following example:

# creating content layout = QtWidgets.QVBoxLayout() for i in range(0, 10): layout.addWidget(QtWidgets.QLabel("line {} - bla bla bla bla bla bla".format(i))) widget = QtWidgets.QWidget() widget.setLayout(layout) # creating dialog and apply the layout dialog = QtWidgets.QDialog() dialog.setLayout(layout) # creating the absolute positioned widget absolute_layout = QtWidgets.QVBoxLayout() absolute_layout.addWidget(QtWidgets.QLabel("Absolute positioned QWidget")) absolute_layout.addWidget(QtWidgets.QLabel("With some widgets in itself")) absolute_layout.addWidget(QtWidgets.QLabel("With some widgets in itself")) absolute_layout.addWidget(QtWidgets.QLabel("With some widgets in itself")) absolute = QtWidgets.QWidget(dialog) absolute.setLayout(absolute_layout) # show the absolute widget and move it absolute.show() absolute.move(10, 10) absolute.raise_() dialog.show()

The dialog is shown correctly with the content in the layout but the absolute is not being shown.

What am I doing wrong?

最满意答案

通过使用...

absolute = QtWidgets.QWidget(dialog)

你absolute是一个dialog的孩子。 因此， absolute的几何形状总是在一定程度上由dialog 。 如果你想能够指定一个小部件的绝对几何使用...

absolute = QtWidgets.QWidget()

So with the help of @G.M. I found out that the solution is really easy:

absolute = QtWidgets.QWidget() absolute.setParent(dialog)

I was expecting that the QWidget::QWidget(QWidget * parent = 0, Qt::WindowFlags f = 0) constructor is calling the QWidget::setParent(QWidget * parent) method internally (which is not true?).