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authorJan-Arve Sæther <jan-arve.saether@nokia.com>2011-04-01 14:50:18 +0200
committerOlivier Goffart <olivier.goffart@nokia.com>2011-05-10 12:54:47 +0200
commit4bfcb2febe076a0fa65f03d0826ce46157de5876 (patch)
tree1884da238ccf510a40158bcca260ac251a25268b
parent04e8fb5e51adb308bb4faaf71672fc0609b5061b (diff)
Benchmark for layout hierarchies
(cherry picked from commit cb503a3f4901c0b017374f099b0de8c0c4c50648)
-rw-r--r--tests/benchmarks/gui/graphicsview/graphicsview.pro1
-rw-r--r--tests/benchmarks/gui/graphicsview/qgraphicslayout/qgraphicslayout.pro6
-rw-r--r--tests/benchmarks/gui/graphicsview/qgraphicslayout/tst_qgraphicslayout.cpp153
3 files changed, 160 insertions, 0 deletions
diff --git a/tests/benchmarks/gui/graphicsview/graphicsview.pro b/tests/benchmarks/gui/graphicsview/graphicsview.pro
index e4fed197e9..1509466728 100644
--- a/tests/benchmarks/gui/graphicsview/graphicsview.pro
+++ b/tests/benchmarks/gui/graphicsview/graphicsview.pro
@@ -3,6 +3,7 @@ SUBDIRS = \
functional \
qgraphicsanchorlayout \
qgraphicsitem \
+ qgraphicslayout \
qgraphicsscene \
qgraphicsview \
qgraphicswidget
diff --git a/tests/benchmarks/gui/graphicsview/qgraphicslayout/qgraphicslayout.pro b/tests/benchmarks/gui/graphicsview/qgraphicslayout/qgraphicslayout.pro
new file mode 100644
index 0000000000..19e2979d98
--- /dev/null
+++ b/tests/benchmarks/gui/graphicsview/qgraphicslayout/qgraphicslayout.pro
@@ -0,0 +1,6 @@
+load(qttest_p4)
+TEMPLATE = app
+TARGET = tst_bench_qgraphicslayout
+
+SOURCES += tst_qgraphicslayout.cpp
+
diff --git a/tests/benchmarks/gui/graphicsview/qgraphicslayout/tst_qgraphicslayout.cpp b/tests/benchmarks/gui/graphicsview/qgraphicslayout/tst_qgraphicslayout.cpp
new file mode 100644
index 0000000000..4bdcfb3ecf
--- /dev/null
+++ b/tests/benchmarks/gui/graphicsview/qgraphicslayout/tst_qgraphicslayout.cpp
@@ -0,0 +1,153 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QtTest>
+#include <QtGui/qgraphicslayout.h>
+#include <QtGui/qgraphicslinearlayout.h>
+#include <QtGui/qgraphicswidget.h>
+#include <QtGui/qgraphicsview.h>
+
+class tst_QGraphicsLayout : public QObject
+{
+ Q_OBJECT
+public:
+ tst_QGraphicsLayout() {}
+ ~tst_QGraphicsLayout() {}
+
+private slots:
+ void invalidate();
+};
+
+
+class RectWidget : public QGraphicsWidget
+{
+public:
+ RectWidget(QGraphicsItem *parent = 0, Qt::WindowFlags wFlags = 0) : QGraphicsWidget(parent, wFlags), setGeometryCalls(0) {}
+
+ void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+ {
+ Q_UNUSED(option);
+ Q_UNUSED(widget);
+ painter->drawRoundRect(rect());
+ painter->drawLine(rect().topLeft(), rect().bottomRight());
+ painter->drawLine(rect().bottomLeft(), rect().topRight());
+ }
+
+ void setGeometry(const QRectF &rect)
+ {
+ //qDebug() << "setGeometry():" << this->data(0).toString();
+ setGeometryCalls->insert(this, rect);
+ QGraphicsWidget::setGeometry(rect);
+ }
+
+ void callUpdateGeometry() {
+ QGraphicsWidget::updateGeometry();
+ }
+
+ QMap<RectWidget*, QRectF> *setGeometryCalls;
+};
+
+/**
+ * Test to see how much time is needed to resize all widgets in a
+ * layout-widget-layout-widget-.... hierarchy from the point where a
+ * leaf widget changes its size hint. (updateGeometry() is called).
+ *
+ * If you run the test for 4.7 you'll get some really high numbers, but
+ * that's because they also include painting (and possible processing of
+ * some other events).
+ */
+void tst_QGraphicsLayout::invalidate()
+{
+ QGraphicsLayout::setInstantInvalidatePropagation(true);
+ QGraphicsScene scene;
+ QGraphicsView *view = new QGraphicsView(&scene);
+ QMap<RectWidget*, QRectF> setGeometryCalls;
+
+ RectWidget *window = new RectWidget(0, Qt::Window);
+ window->setGeometryCalls = &setGeometryCalls;
+ window->setData(0, QString(QChar('a')));
+
+ scene.addItem(window);
+ RectWidget *leaf = 0;
+ const int depth = 100;
+ RectWidget *parent = window;
+ for (int i = 1; i < depth; ++i) {
+ QGraphicsLinearLayout *l = new QGraphicsLinearLayout(parent);
+ l->setContentsMargins(0,0,0,0);
+ RectWidget *child = new RectWidget;
+ child->setData(0, QString(QChar('a' + i)));
+ child->setGeometryCalls = &setGeometryCalls;
+ l->addItem(child);
+ parent = child;
+ }
+ leaf = parent;
+ leaf->setMinimumSize(QSizeF(1,1));
+
+ view->show();
+
+ QTest::qWaitForWindowShown(view);
+
+ // ...then measure...
+
+ int pass = 1;
+
+ // should be as small as possible, to reduce overhead of painting
+ QSizeF size(1, 1);
+ setGeometryCalls.clear();
+ QBENCHMARK {
+ leaf->setMinimumSize(size);
+ leaf->setMaximumSize(size);
+ while (setGeometryCalls.count() < depth) {
+ QApplication::sendPostedEvents();
+ }
+ // force a resize on each widget, this will ensure
+ // that each iteration will resize all 50 widgets
+ int w = int(size.width());
+ w^=2;
+ size.setWidth(w);
+ }
+ delete view;
+ QGraphicsLayout::setInstantInvalidatePropagation(false);
+}
+
+QTEST_MAIN(tst_QGraphicsLayout)
+
+#include "tst_qgraphicslayout.moc"