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GUI: add ScreenWindowGrabbing capability

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On Wayland, there is no protocol to do it yet.

Task-number: QTBUG-100792
Task-number: QTBUG-101145
Change-Id: Id72625a8161359111a2d0f43f3215e787778ba6b
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
This commit is contained in:
Liang Qi 2022-03-08 11:46:48 +01:00
parent 9619cec279
commit f08e57540d
3 changed files with 14 additions and 4 deletions
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7
src/gui/kernel/qplatformintegration.cpp
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@ -260,6 +260,10 @@ QPlatformServices *QPlatformIntegration::services() const
where there is an alternative, such as Qt Quick with its \c software backend, an
automatic fallback to that alternative may occur, if applicable. The default
implementation of hasCapability() returns \c true.
\value ScreenWindowGrabbing The platform supports grabbing window on screen.
On Wayland, this capability can be reported as \c false. The default implementation
of hasCapability() returns \c true.
*/
/*!
@ -284,7 +288,8 @@ QPlatformServices *QPlatformIntegration::services() const
bool QPlatformIntegration::hasCapability(Capability cap) const
{
return cap == NonFullScreenWindows || cap == NativeWidgets || cap == WindowManagement
|| cap == TopStackedNativeChildWindows || cap == WindowActivation || cap == RhiBasedRendering;
|| cap == TopStackedNativeChildWindows || cap == WindowActivation
|| cap == RhiBasedRendering || cap == ScreenWindowGrabbing;
}
QPlatformPixmap *QPlatformIntegration::createPlatformPixmap(QPlatformPixmap::PixelType type) const

3
src/gui/kernel/qplatformintegration.h
View File

@ -133,7 +133,8 @@ public:
OpenGLOnRasterSurface,
MaximizeUsingFullscreenGeometry,
PaintEvents,
RhiBasedRendering
RhiBasedRendering,
ScreenWindowGrabbing // whether QScreen::grabWindow() is supported
};
virtual ~QPlatformIntegration() { }

8
tests/auto/gui/kernel/qscreen/tst_qscreen.cpp
View File

@ -30,6 +30,8 @@
#include <qrasterwindow.h>
#include <qscreen.h>
#include <qpa/qwindowsysteminterface.h>
#include <qpa/qplatformintegration.h>
#include <private/qguiapplication_p.h>
#include <QTest>
#include <QSignalSpy>
@ -205,6 +207,10 @@ void tst_QScreen::orientationChange()
void tst_QScreen::grabWindow_data()
{
if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(
QPlatformIntegration::ScreenWindowGrabbing)) {
QSKIP("This platform does not support grabbing windows on screen.");
}
QTest::addColumn<int>("screenIndex");
QTest::addColumn<QByteArray>("screenName");
QTest::addColumn<bool>("grabWindow");
@ -302,8 +308,6 @@ void tst_QScreen::grabWindow()
QImage grabbedImage = pixmap.toImage();
const QSize grabbedSize = grabbedImage.size();
if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
QEXPECT_FAIL("", "Wayland: Screen grabbing not implemented, See QTBUG-100792.", Abort);
QCOMPARE(grabbedSize, expectedGrabSize);
QPoint pixelOffset = QPoint(0, 0);