Rename setSceneGraphBackend to setGraphicsApi

...and fix up the docs.

The string-based setSceneGraphBackend() stays of course (the docs have
been enhanced, however). The GraphicsApi enum-based overload is now
renamed to setGraphicsApi().

Using the same name for both functions is a historical artifact, reflecting
the evolution (5.0 - 5.8 - 5.14). In 6.0 we can give it a more appropriate
name, since it does not have much to do with "backends" from the user's
perspective.

Change-Id: Id75dbf81f50a148797e5b5de9be4000153737473
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

2 files changed, 2 insertions, 2 deletions

diff --git a/examples/quick/quickwidgets/qquickviewcomparison/main.cpp b/examples/quick/quickwidgets/qquickviewcomparison/main.cpp
index f1fe397462..e40c509829 100644
--- a/examples/quick/quickwidgets/qquickviewcomparison/main.cpp
+++ b/examples/quick/quickwidgets/qquickviewcomparison/main.cpp
@@ -61,7 +61,7 @@ int main(int argc, char **argv)
     QApplication app(argc, argv);
 
     // this example and QQuickWidget are only functional when rendering with OpenGL
-    QQuickWindow::setSceneGraphBackend(QSGRendererInterface::OpenGLRhi);
+    QQuickWindow::setGraphicsApi(QSGRendererInterface::OpenGLRhi);
 
     QCoreApplication::setApplicationName("Qt QQuickView/QQuickWidget Comparison Example");
     QCoreApplication::setOrganizationName("QtProject");
diff --git a/examples/quick/quickwidgets/quickwidget/main.cpp b/examples/quick/quickwidgets/quickwidget/main.cpp
index 3bff5901f9..1c8b21f790 100644
--- a/examples/quick/quickwidgets/quickwidget/main.cpp
+++ b/examples/quick/quickwidgets/quickwidget/main.cpp
@@ -198,7 +198,7 @@ int main(int argc, char **argv)
     QApplication app(argc, argv);
 
     // this example and QQuickWidget are only functional when rendering with OpenGL
-    QQuickWindow::setSceneGraphBackend(QSGRendererInterface::OpenGLRhi);
+    QQuickWindow::setGraphicsApi(QSGRendererInterface::OpenGLRhi);
 
     QCoreApplication::setApplicationName("Qt QQuickWidget Example");
     QCoreApplication::setOrganizationName("QtProject");