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Apply scale keeping window center in place.

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This commit is contained in:
John Preston 2021-09-16 13:16:13 +03:00
parent de9b21e436
commit 703ea9aacd
1 changed files with 9 additions and 4 deletions
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13
Telegram/SourceFiles/window/main_window.cpp
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@ -445,10 +445,15 @@ Core::WindowPosition MainWindow::positionFromSettings() const {
return position;
}
const auto scaleFactor = cScale() / float64(position.scale);
position.x *= scaleFactor;
position.y *= scaleFactor;
position.w *= scaleFactor;
position.h *= scaleFactor;
if (scaleFactor != 1.) {
// Change scale while keeping the position center in place.
position.x += position.w / 2;
position.y += position.h / 2;
position.w *= scaleFactor;
position.h *= scaleFactor;
position.x -= position.w / 2;
position.y -= position.h / 2;
}
return position;
}