testRepaint

gistfile1.diff

diff --git a/Tools/DumpRenderTree/qt/DumpRenderTreeQt.cpp b/Tools/DumpRenderTree/qt/DumpRenderTreeQt.cpp
index 001d55b..d8e7291 100644
--- a/Tools/DumpRenderTree/qt/DumpRenderTreeQt.cpp
+++ b/Tools/DumpRenderTree/qt/DumpRenderTreeQt.cpp
@@ -954,7 +954,22 @@ void DumpRenderTree::dump()
         QImage image(m_page->viewportSize(), QImage::Format_ARGB32);
         image.fill(Qt::white);
         QPainter painter(&image);
-        mainFrame->render(&painter);
+        if (m_controller->shouldTestRepaint()) {
+            int width = m_page->viewportSize().width();
+            int height = m_page->viewportSize().height();
+            if (m_controller->shouldSweepHorizontally()) {
+                for (QRect column(QPoint(0, 0), QSize(1, height)); column.x() < width; column.moveRight(column.x()+1)) {
+                    painter.setClipRect(column);
+                    mainFrame->render(&painter);
+                }
+            } else {
+                for (QRect line(QPoint(0, 0), QSize(width, 1)); line.y() < height; line.moveBottom(line.y()+1)) {
+                    painter.setClipRect(line);
+                    mainFrame->render(&painter);
+                }
+            }
+        } else
+            mainFrame->render(&painter);
         painter.end();
 
         QCryptographicHash hash(QCryptographicHash::Md5);
diff --git a/Tools/DumpRenderTree/qt/LayoutTestControllerQt.cpp b/Tools/DumpRenderTree/qt/LayoutTestControllerQt.cpp
index ff3ed33..87b8b6e 100644
--- a/Tools/DumpRenderTree/qt/LayoutTestControllerQt.cpp
+++ b/Tools/DumpRenderTree/qt/LayoutTestControllerQt.cpp
@@ -72,6 +72,8 @@ void LayoutTestController::reset()
     m_isGeolocationPermissionSet = false;
     m_isPrinting = false;
     m_geolocationPermission = false;
+    m_testRepaint = false;
+    m_sweepHorizontally = false;
 
     DumpRenderTreeSupportQt::dumpEditingCallbacks(false);
     DumpRenderTreeSupportQt::dumpFrameLoader(false);
@@ -224,6 +226,16 @@ void LayoutTestController::display()
     emit showPage();
 }
 
+void LayoutTestController::testRepaint()
+{
+    m_testRepaint = true;
+}
+
+void LayoutTestController::repaintSweepHorizontally()
+{
+    m_sweepHorizontally = true;
+}
+
 void LayoutTestController::displayInvalidatedRegion()
 {
     display();
diff --git a/Tools/DumpRenderTree/qt/LayoutTestControllerQt.h b/Tools/DumpRenderTree/qt/LayoutTestControllerQt.h
index 99d04f3..25e6f35 100644
--- a/Tools/DumpRenderTree/qt/LayoutTestControllerQt.h
+++ b/Tools/DumpRenderTree/qt/LayoutTestControllerQt.h
@@ -73,6 +73,8 @@ public:
     bool waitForPolicy() const { return m_waitForPolicy; }
     bool ignoreReqestForPermission() const { return m_ignoreDesktopNotification; }
     bool isPrinting() { return m_isPrinting; }
+    bool shouldTestRepaint() { return m_testRepaint; }
+    bool shouldSweepHorizontally() { return m_sweepHorizontally; }
 
     void reset();
 
@@ -133,6 +135,8 @@ public slots:
     bool checkDesktopNotificationPermission(const QString& origin);
     void simulateDesktopNotificationClick(const QString& title);
     void display();
+    void testRepaint();
+    void repaintSweepHorizontally();
     void displayInvalidatedRegion();
     void clearBackForwardList();
     QString pathToLocalResource(const QString& url);
@@ -301,6 +305,8 @@ private:
     bool m_isGeolocationPermissionSet;
     bool m_isPrinting;
     bool m_geolocationPermission;
+    bool m_testRepaint;
+    bool m_sweepHorizontally;
 
     QUrl m_userStyleSheetLocation;
     QBasicTimer m_timeoutTimer;