Add Qt::RenderHint to control rendering operations.

We need a way to control various rendering operations. For example,
whether quality is more important than performance, or the other way
around.

This change also replaces occurences of QPixmapFilter/QGraphicsEffect::BlurHint
(introduced in 1a431e850893b6b162c833f4f148f090e2427dda) with Qt::RenderHint.

Reviewed-by: Samuel

2 files changed, 20 insertions, 0 deletions

diff --git a/src/corelib/global/qnamespace.h b/src/corelib/global/qnamespace.h
index 741c06f..473398b 100644
--- a/src/corelib/global/qnamespace.h
+++ b/src/corelib/global/qnamespace.h
@@ -1627,6 +1627,11 @@ public:
         NavigationModeCursorAuto,
         NavigationModeCursorForceVisible
     };
+
+    enum RenderHint {
+        QualityHint,
+        PerformanceHint
+    };
 }
 #ifdef Q_MOC_RUN
  ;
diff --git a/src/corelib/global/qnamespace.qdoc b/src/corelib/global/qnamespace.qdoc
index 40dd1d2..1833b96 100644
--- a/src/corelib/global/qnamespace.qdoc
+++ b/src/corelib/global/qnamespace.qdoc
@@ -2814,3 +2814,18 @@
     \sa QApplication::setNavigationMode()
     \sa QApplication::navigationMode()
 */
+
+/*!
+    \enum Qt::RenderHint
+    \since 4.6
+
+    This enum describes the possible hints that can be used to control various
+    rendering operations.
+
+    \value QualityHint Indicates that rendering quality is the most important factor,
+    at the potential cost of lower performance.
+
+    \value PerformanceHint Indicates that rendering performance is the most important factor,
+    at the potential cost of lower quality.
+*/
+