Mapping widget positions to other widgets...

Dariusz

Hey

How can I map my widgets positions between each other...

Here is video of it failing, I want the "move Me" button to move to the same height as tree view.

Here is python example:

from functools import partial

from PySide6.QtCore import *
from PySide6.QtGui import *
from PySide6.QtWidgets import *

import sys

a = QApplication()

w = QWidget()
layw = QGridLayout(w)
spliter = QSplitter()
layw.addWidget(spliter)
wa = QWidget()
la = QGridLayout(wa)
btn = QPushButton("Calculate post")
btn2 = QPushButton("meh");
lab = QLabel("alala")
view = QTreeView()

la.addWidget(btn)
la.addWidget(btn2)
la.addWidget(lab)
splitterOther = QSplitter()
splitterOther.setOrientation(Qt.Vertical)
splitterOther.addWidget(QLabel("mdmemem"))
splitterOther.addWidget(view)
la.addWidget(splitterOther)

other = QWidget()
moveMe = QPushButton("move Me", other)


spliter.addWidget(wa)
spliter.addWidget(other)

def moveButton(widget, view, targetWidget,targetButton):
    pos = view.mapToParent(view.viewport().geometry().topLeft())
    loc = QPoint(0,pos.y())
    targetButton.move(loc)

btn.released.connect(partial(moveButton,wa,view,other,moveMe))
w.show()
sys.exit(a.exec())

Do I need to recursively traverse all the way to top or something? Is there a way to "jump" ahead somehow?

jsulm

@Dariusz You could transfer first coordinates from the tree view to global coordinates and then to local coordinates of the widget where the button is https://doc.qt.io/qt-5/qwidget.html#mapToGlobal and https://doc.qt.io/qt-5/qwidget.html#mapFromGlobal

jsulm

@Dariusz said in Mapping widget positions to other widgets...:

I want the "move Me" button to move to the same height as tree view

If both have same parent widget then simply use y coordinate from the tree view for the button

mpergand

@Dariusz
You can retreive the geometry of any widget in a gridlayout with:
QRect QGridLayout::cellRect(int row, int column) const

Dariusz

@jsulm nope, as you can see in example, the tree view is child of few other widgets comparing to moveMe widget.
@mpergand hmm but its an nested widget... so I dont think this will work. But still awesome find thanks!

I take I have to manuall traverse each level to find correct position in relation to other widget. Bummer there is no "global" widget->mapToTargetWidget(targetWidget,pos) functions that would do it for me :c

jsulm

@Dariusz You could transfer first coordinates from the tree view to global coordinates and then to local coordinates of the widget where the button is https://doc.qt.io/qt-5/qwidget.html#mapToGlobal and https://doc.qt.io/qt-5/qwidget.html#mapFromGlobal

mpergand

@Dariusz said in Mapping widget positions to other widgets...:

hmm but its an nested widget... so I dont think this will work. But still awesome find thanks!

Why not, as @jsulm said, you have to make the right conversions between the views.

Dariusz

@jsulm Yep that works, awesome thanks!