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Fix OpenGL mode in examples like composition

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To avoid an incorrect offset for the native window, call create()
after createWindowContainer().

The mysterious -1 for the width and height are removed as well because
otherwise the GL window's size is clearly off by one.

Fixes: QTBUG-82195
Pick-to: 5.15
Change-Id: I1a9cec62746fc110bfc4cd2e4fa111f621124638
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
This commit is contained in:
Laszlo Agocs 2020-06-08 15:08:45 +02:00
parent bc84b7d046
commit d4548751b7
1 changed files with 5 additions and 3 deletions
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8
examples/widgets/painting/shared/arthurwidgets.cpp
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@ -129,9 +129,11 @@ void ArthurFrame::createGlWindow()
f.setStencilBufferSize(8);
m_glWindow->setFormat(f);
m_glWindow->setFlags(Qt::WindowTransparentForInput);
m_glWindow->resize(width() - 1, height() - 1);
m_glWindow->create();
m_glWindow->resize(width(), height());
m_glWidget = QWidget::createWindowContainer(m_glWindow, this);
// create() must be called after createWindowContainer() otherwise
// an incorrect offsetting of the position will occur.
m_glWindow->create();
}
#endif
@ -235,7 +237,7 @@ void ArthurFrame::resizeEvent(QResizeEvent *e)
{
#if QT_CONFIG(opengl)
if (m_glWidget)
m_glWidget->setGeometry(0, 0, e->size().width()-1, e->size().height()-1);
m_glWidget->setGeometry(0, 0, e->size().width(), e->size().height());
#endif
QWidget::resizeEvent(e);
}