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PerScreenDpi | Moving windows between screens with different scale changes the window size (#4064)

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* Fix window size when dropped on a screen with a different scale setting compared to the one it was dragged from.
Note that this fixes a bug that could only be reproduced with the PerScreenDpiAware setting activated - current editor uses SystemDpiAware.

Signed-off-by: Danilo Aimini <82231674+AMZN-daimini@users.noreply.github.com>

* Fix loss of precision warning.

Signed-off-by: Danilo Aimini <82231674+AMZN-daimini@users.noreply.github.com>
This commit is contained in:
Danilo Aimini
2021-09-13 14:55:55 -07:00
committed by GitHub
parent 2b7caa685b
commit 850d401bb3
1 changed files with 12 additions and 0 deletions
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Code/Framework/AzQtComponents/AzQtComponents/Components/FancyDocking.cpp
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@@ -2461,6 +2461,18 @@ namespace AzQtComponents
placeholderRect.translate(0, -margins.bottom());
}
// Also adjust the placeholderRect by the relative dpi change from the original screen, since setGeometry uses the screen's
// virtualGeometry!
QScreen* fromScreen = dock->screen();
QScreen* toScreen = Utilities::ScreenAtPoint(placeholderRect.topLeft());
if (fromScreen != toScreen)
{
qreal factorRatio = QHighDpiScaling::factor(fromScreen) / QHighDpiScaling::factor(toScreen);
placeholderRect.setWidth(aznumeric_cast<int>(aznumeric_cast<qreal>(placeholderRect.width()) * factorRatio));
placeholderRect.setHeight(aznumeric_cast<int>(aznumeric_cast<qreal>(placeholderRect.height()) * factorRatio));
}
// Place the floating dock widget
makeDockWidgetFloating(dock, placeholderRect);
clearDraggingState();