1 files changed, 46 insertions, 0 deletions
diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp
index 1d10d75..8e64f3b 100644
--- a/src/gui/painting/qpainter.cpp
+++ b/src/gui/painting/qpainter.cpp
@@ -9248,6 +9248,52 @@ void QPainter::drawPixmapFragments(const PixmapFragment *fragments, int fragment
 }
 
 /*!
+    \since 4.8
+
+    This function is used to draw the same \a pixmap with multiple target
+    and source rectangles. If \a sourceRects is 0, the whole pixmap will be
+    rendered at each of the target rectangles. The \a hints parameter can be
+    used to pass in drawing hints.
+
+    This function is potentially faster than multiple calls to drawPixmap(),
+    since the backend can optimize state changes.
+
+    \sa QPainter::PixmapFragmentHint
+*/
+
+void QPainter::drawPixmapFragments(const QRectF *targetRects, const QRectF *sourceRects, int fragmentCount,
+                                   const QPixmap &pixmap, PixmapFragmentHints hints)
+{
+    Q_D(QPainter);
+
+    if (!d->engine || pixmap.isNull())
+        return;
+
+#ifndef QT_NO_DEBUG
+    if (sourceRects) {
+        for (int i = 0; i < fragmentCount; ++i) {
+            QRectF sourceRect = sourceRects[i];
+            if (!(QRectF(pixmap.rect()).contains(sourceRect)))
+                qWarning("QPainter::drawPixmapFragments - the source rect is not contained by the pixmap's rectangle");
+        }
+    }
+#endif
+
+    if (d->engine->isExtended()) {
+        d->extended->drawPixmapFragments(targetRects, sourceRects, fragmentCount, pixmap, hints);
+    } else {
+        if (sourceRects) {
+            for (int i = 0; i < fragmentCount; ++i)
+                drawPixmap(targetRects[i], pixmap, sourceRects[i]);
+        } else {
+            QRectF sourceRect = pixmap.rect();
+            for (int i = 0; i < fragmentCount; ++i)
+                drawPixmap(targetRects[i], pixmap, sourceRect);
+        }
+    }
+}
+
+/*!
     \since 4.7
     \class QPainter::PixmapFragment