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Exercise reparenting more in QOpenGLWidget autotest

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Change-Id: I771250ba889835e886c2801066ef023d82c5186d
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
This commit is contained in:
Laszlo Agocs 2022-02-25 16:12:06 +01:00
parent e0a7364b50
commit bc54031d57
1 changed files with 65 additions and 1 deletions
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66
tests/auto/widgets/widgets/qopenglwidget/tst_qopenglwidget.cpp
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@ -37,6 +37,8 @@
#include <QtWidgets/QVBoxLayout>
#include <QtWidgets/QPushButton>
#include <QtWidgets/QStackedWidget>
#include <QtWidgets/QTabWidget>
#include <QtWidgets/QLabel>
#include <QTest>
#include <QSignalSpy>
#include <private/qguiapplication_p.h>
@ -58,6 +60,7 @@ private slots:
void reparentToAlreadyCreated();
void reparentToNotYetCreated();
void reparentHidden();
void reparentTopLevel();
void asViewport();
void requestUpdate();
void fboRedirect();
@ -207,7 +210,7 @@ void tst_QOpenGLWidget::createNonTopLevel()
class PainterWidget : public QOpenGLWidget, protected QOpenGLFunctions
{
public:
PainterWidget(QWidget *parent)
PainterWidget(QWidget *parent = nullptr)
: QOpenGLWidget(parent), m_clear(false) { }
void initializeGL() override {
@ -321,6 +324,67 @@ void tst_QOpenGLWidget::reparentHidden()
QVERIFY(originalContext != newContext);
}
void tst_QOpenGLWidget::reparentTopLevel()
{
// no GL content yet, just an ordinary tab widget, top-level
QTabWidget tabWidget;
tabWidget.resize(640, 480);
tabWidget.addTab(new QLabel("Dummy page"), "Page 1");
tabWidget.show();
QVERIFY(QTest::qWaitForWindowExposed(&tabWidget));
PainterWidget *glw1 = new PainterWidget;
// add child GL widget as a tab page
{
QSignalSpy frameSwappedSpy(glw1, &QOpenGLWidget::frameSwapped);
tabWidget.setCurrentIndex(tabWidget.addTab(glw1, "OpenGL widget 1"));
QTRY_VERIFY(frameSwappedSpy.count() > 0);
}
PainterWidget *glw2 = new PainterWidget;
// add child GL widget #2 as a tab page
{
QSignalSpy frameSwappedSpy(glw2, &QOpenGLWidget::frameSwapped);
tabWidget.setCurrentIndex(tabWidget.addTab(glw2, "OpenGL widget 2"));
QTRY_VERIFY(frameSwappedSpy.count() > 0);
}
QImage image = glw2->grabFramebuffer();
QVERIFY(image.pixel(20, 10) == qRgb(0, 0, 255));
// now delete GL widget #2
{
QSignalSpy frameSwappedSpy(glw1, &QOpenGLWidget::frameSwapped);
delete glw2;
QTRY_VERIFY(frameSwappedSpy.count() > 0);
}
image = glw1->grabFramebuffer();
QVERIFY(image.pixel(20, 10) == qRgb(0, 0, 255));
// make the GL widget top-level
{
QSignalSpy frameSwappedSpy(glw1, &QOpenGLWidget::frameSwapped);
glw1->setParent(nullptr);
glw1->show();
QVERIFY(QTest::qWaitForWindowExposed(glw1));
QTRY_VERIFY(frameSwappedSpy.count() > 0);
}
image = glw1->grabFramebuffer();
QVERIFY(image.pixel(20, 10) == qRgb(0, 0, 255));
// back to a child widget by readding to the tab widget
{
QSignalSpy frameSwappedSpy(glw1, &QOpenGLWidget::frameSwapped);
tabWidget.setCurrentIndex(tabWidget.addTab(glw1, "Re-added OpenGL widget 1"));
QTRY_VERIFY(frameSwappedSpy.count() > 0);
}
image = glw1->grabFramebuffer();
QVERIFY(image.pixel(20, 10) == qRgb(0, 0, 255));
}
class CountingGraphicsView : public QGraphicsView
{
public: