Changes: add panning benchmark to widgetsgallery

RevBy: Bernd Lamecker

Datails:
Example output:

Page name                     StaticPageBenchmark (0)  PanningBenchmark   StaticPageBenchmark (90)
Application Menu              39.42fps | 4008ms        35.90fps |  585ms  30.38fps | 4016ms
Object menu                   33.17fps | 4010ms        23.03fps |  304ms  25.99fps | 4002ms
Dialogs and Notifications...  36.27fps | 4025ms        25.59fps | 1094ms  28.46fps | 4005ms
Navigation Bar                41.55fps | 4019ms        33.33fps |   90ms  38.40fps | 4010ms
Tool Bar                      42.11fps | 4013ms               n/a         38.44fps | 4006ms
Container                     52.09fps | 4012ms               n/a         50.39fps | 4009ms

1 files changed, 83 insertions, 0 deletions

diff --git a/demos/widgetsgallery/panningbenchmark.cpp b/demos/widgetsgallery/panningbenchmark.cpp
new file mode 100644
index 00000000..28d994e3
--- /dev/null
+++ b/demos/widgetsgallery/panningbenchmark.cpp
@@ -0,0 +1,83 @@
+#include "panningbenchmark.h"
+#include "timedemo.h"
+
+#include <DuiApplicationPage>
+#include <DuiPannableViewport>
+#include <DuiPhysics2DPanning>
+
+#include <QTimer>
+#include <qdebug.h>
+
+namespace {
+    const int updateInterval = 20; // ms
+    const int yOffset = 20;
+}
+
+PanningBenchmark::PanningBenchmark(DuiApplicationPage *applicationPage, Timedemo *timedemo)
+    : TimedemoBenchmark(applicationPage, timedemo)
+    , timingStarted(false)
+{
+    pannableViewport = 0;
+    QList<QGraphicsItem *> childItems = applicationPage->childItems();
+    foreach(QGraphicsItem * childItem, childItems) {
+        if (DuiPannableViewport * viewport = dynamic_cast<DuiPannableViewport*>(childItem)) {
+            pannableViewport = viewport;
+            break;
+        }
+    }
+
+    if (!pannableViewport) {
+        qFatal("Did not find matching viewport of DuiApplicationWindow");
+    }
+}
+
+QString PanningBenchmark::name() {
+    return "PanningBenchmark";
+}
+
+void PanningBenchmark::start()
+{
+    if (!applicationPage->isActiveWindow()) {
+        connect(applicationPage, SIGNAL(windowShown()), this, SLOT(waitBeforePanning()));
+        applicationPage->appear();
+    } else {
+        QTimer::singleShot(0, this, SLOT(panDown()));
+    }
+}
+
+//HACK! if we do not wait pannableViewport->physics()->range() is (0, 0, 0, 0) because
+// the widgets are not completely set up yet
+void PanningBenchmark::waitBeforePanning()
+{
+    QTimer::singleShot(500, this, SLOT(panDown()));
+}
+
+void PanningBenchmark::panDown()
+{
+    if (!timingStarted) {
+        timedemo->startTiming();
+        timingStarted = true;
+        formerPosition = pannableViewport->physics()->position();
+    }
+
+    QPointF currentPosition = pannableViewport->physics()->position();
+    QRectF range = pannableViewport->physics()->range();
+
+    if (currentPosition.y() < range.height()) {
+        pannableViewport->physics()->setPosition(currentPosition + QPointF(0., yOffset));
+        QTimer::singleShot(20, this, SLOT(panDown()));
+    } else {
+        terminateBenchmark();
+    }
+
+}
+
+void PanningBenchmark::terminateBenchmark()
+{
+    timedemo->stopTiming();
+    pannableViewport->physics()->setPosition(formerPosition);
+
+    qDebug() << "end" << pannableViewport->widget()->pos() << pannableViewport->physics()->range();
+
+    emit finished();
+}