Long live Qt 4.5!

2 files changed, 336 insertions, 0 deletions

diff --git a/tests/benchmarks/qwidget/qwidget.pro b/tests/benchmarks/qwidget/qwidget.pro
new file mode 100644
index 0000000..ff47445
--- /dev/null
+++ b/tests/benchmarks/qwidget/qwidget.pro
@@ -0,0 +1,4 @@
+load(qttest_p4)
+
+TARGET = tst_qwidget
+SOURCES += tst_qwidget.cpp
diff --git a/tests/benchmarks/qwidget/tst_qwidget.cpp b/tests/benchmarks/qwidget/tst_qwidget.cpp
new file mode 100644
index 0000000..fd8dfea
--- /dev/null
+++ b/tests/benchmarks/qwidget/tst_qwidget.cpp
@@ -0,0 +1,332 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <qtest.h>
+#include <QtGui>
+
+class tst_QWidget : public QObject
+{
+    Q_OBJECT
+
+
+private slots:
+    void update_data();
+    void updateOpaque_data();
+    void updateOpaque();
+    void updateTransparent_data();
+    void updateTransparent();
+    void updatePartial_data();
+    void updatePartial();
+    void updateComplex_data();
+    void updateComplex();
+
+    void complexToplevelResize();
+};
+
+class UpdateWidget : public QWidget
+{
+public:
+    UpdateWidget(int rows, int columns) : QWidget(0)
+    {
+        QGridLayout *layout = new QGridLayout;
+        for (int row = 0; row < rows; ++row) {
+            for (int column = 0; column < columns; ++column) {
+                UpdateWidget *widget = new UpdateWidget;
+                widget->setFixedSize(20, 20);
+                layout->addWidget(widget, row, column);
+                children.append(widget);
+            }
+        }
+        setLayout(layout);
+    }
+
+    UpdateWidget(QWidget *parent = 0) : QWidget(parent) {}
+
+    void paintEvent(QPaintEvent *)
+    {
+        static int color = Qt::black;
+
+        QPainter painter(this);
+        painter.fillRect(rect(), Qt::GlobalColor(color));
+
+        if (++color > Qt::darkYellow)
+            color = Qt::black;
+    }
+
+    QRegion updateRegion;
+    QList<UpdateWidget*> children;
+};
+
+void tst_QWidget::update_data()
+{
+    QTest::addColumn<int>("rows");
+    QTest::addColumn<int>("columns");
+    QTest::addColumn<int>("numUpdates");
+
+    QTest::newRow("10x10x1") << 10 << 10 << 1;
+    QTest::newRow("10x10x10") << 10 << 10 << 10;
+    QTest::newRow("25x25x1") << 25 << 25 << 1;
+    QTest::newRow("25x25x10") << 25 << 25 << 10;
+    QTest::newRow("25x25x100") << 25 << 25 << 100;
+}
+
+void tst_QWidget::updateOpaque_data()
+{
+    update_data();
+}
+
+void tst_QWidget::updateOpaque()
+{
+    QFETCH(int, rows);
+    QFETCH(int, columns);
+    QFETCH(int, numUpdates);
+
+    UpdateWidget widget(rows, columns);
+    foreach (QWidget *w, widget.children) {
+        w->setAttribute(Qt::WA_OpaquePaintEvent);
+    }
+
+    widget.show();
+    QApplication::processEvents();
+
+    int i = 0;
+    const int n = widget.children.size();
+    QBENCHMARK {
+        for (int j = 0; j < numUpdates; ++j) {
+            widget.children[i]->update();
+            QApplication::processEvents();
+            i = (i + 1) % n;
+        }
+    }
+}
+
+void tst_QWidget::updateTransparent_data()
+{
+    update_data();
+}
+
+void tst_QWidget::updateTransparent()
+{
+    QFETCH(int, rows);
+    QFETCH(int, columns);
+    QFETCH(int, numUpdates);
+
+    UpdateWidget widget(rows, columns);
+    widget.show();
+    QApplication::processEvents();
+
+    int i = 0;
+    const int n = widget.children.size();
+    QBENCHMARK {
+        for (int j = 0; j < numUpdates; ++j) {
+            widget.children[i]->update();
+            QApplication::processEvents();
+            i = (i + 1) % n;
+        }
+    }
+}
+
+void tst_QWidget::updatePartial_data()
+{
+    update_data();
+}
+
+void tst_QWidget::updatePartial()
+{
+    QFETCH(int, rows);
+    QFETCH(int, columns);
+    QFETCH(int, numUpdates);
+
+    UpdateWidget widget(rows, columns);
+    widget.show();
+    QApplication::processEvents();
+
+    int i = 0;
+    const int n = widget.children.size();
+    QBENCHMARK {
+        for (int j = 0; j < numUpdates; ++j) {
+            QWidget *w = widget.children[i];
+            const int x = w->width() / 2;
+            const int y = w->height() / 2;
+            w->update(0, 0, x, y);
+            w->update(x, 0, x, y);
+            w->update(0, y, x, y);
+            w->update(x, y, x, y);
+            QApplication::processEvents();
+            i = (i + 1) % n;
+        }
+    }
+}
+
+void tst_QWidget::updateComplex_data()
+{
+    update_data();
+}
+
+void tst_QWidget::updateComplex()
+{
+    QFETCH(int, rows);
+    QFETCH(int, columns);
+    QFETCH(int, numUpdates);
+
+    UpdateWidget widget(rows, columns);
+    widget.show();
+    QApplication::processEvents();
+
+    int i = 0;
+    const int n = widget.children.size();
+    QBENCHMARK {
+        for (int j = 0; j < numUpdates; ++j) {
+            QWidget *w = widget.children[i];
+            const int x = w->width() / 2;
+            const int y = w->height() / 2;
+            w->update(QRegion(0, 0, x, y, QRegion::Ellipse));
+            w->update(QRegion(x, y, x, y, QRegion::Ellipse));
+            QApplication::processEvents();
+            i = (i + 1) % n;
+        }
+    }
+}
+
+class ResizeWidget : public QWidget
+{
+public:
+    ResizeWidget();
+};
+
+ResizeWidget::ResizeWidget() : QWidget(0)
+{
+    QBoxLayout *topLayout = new QVBoxLayout;
+
+    QMenuBar *menubar = new QMenuBar;
+    QMenu* popup = menubar->addMenu("&File");
+    popup->addAction("&Quit", qApp, SLOT(quit()));
+    topLayout->setMenuBar(menubar);
+
+    QBoxLayout *buttons = new QHBoxLayout;
+    buttons->setMargin(5);
+    buttons->addStretch(10);
+    for (int i = 1; i <= 4; i++ ) {
+        QPushButton* button = new QPushButton;
+        button->setText(QString("Button %1").arg(i));
+        buttons->addWidget(button);
+    }
+    topLayout->addLayout(buttons);
+
+    buttons = new QHBoxLayout;
+    buttons->addStretch(10);
+    for (int i = 11; i <= 16; i++) {
+        QPushButton* button = new QPushButton;
+        button->setText(QString("Button %1").arg(i));
+        buttons->addWidget(button);
+    }
+    topLayout->addLayout(buttons);
+
+    QBoxLayout *buttons2 = new QHBoxLayout;
+    buttons2->addStretch(10);
+    topLayout->addLayout(buttons2);
+
+    QPushButton *button = new QPushButton;
+    button->setText("Button five");
+    buttons2->addWidget(button);
+
+    button = new QPushButton;
+    button->setText("Button 6");
+    buttons2->addWidget(button);
+
+    QTextEdit *bigWidget = new QTextEdit;
+    bigWidget->setText("This widget will get all the remaining space");
+    bigWidget->setFrameStyle(QFrame::Panel | QFrame::Plain);
+    topLayout->addWidget(bigWidget);
+
+    const int numRows = 6;
+    const int labelCol = 0;
+    const int linedCol = 1;
+    const int multiCol = 2;
+
+    QGridLayout *grid = new QGridLayout;
+    for (int row = 0; row < numRows; row++) {
+        QLineEdit *lineEdit = new QLineEdit;
+        grid->addWidget(lineEdit, row, linedCol);
+        QLabel *label = new QLabel(QString("Line &%1").arg(row + 1));
+        grid->addWidget(label, row, labelCol);
+    }
+    topLayout->addLayout(grid);
+
+    QTextEdit *multiLineEdit = new QTextEdit;
+    grid->addWidget(multiLineEdit, 0, labelCol + 1, multiCol, multiCol);
+
+    grid->setColumnStretch(linedCol, 10);
+    grid->setColumnStretch(multiCol, 20);
+
+    QLabel* statusBar = new QLabel;
+    statusBar->setText("Let's pretend this is a status bar");
+    statusBar->setFrameStyle(QFrame::Panel | QFrame::Sunken);
+    statusBar->setFixedHeight(statusBar->sizeHint().height());
+    statusBar->setAlignment(Qt::AlignVCenter | Qt::AlignLeft);
+    topLayout->addWidget(statusBar);
+
+    topLayout->activate();
+    setLayout(topLayout);
+}
+
+void tst_QWidget::complexToplevelResize()
+{
+    ResizeWidget w;
+    w.show();
+
+    QApplication::processEvents();
+
+    const int minSize = 100;
+    const int maxSize = 800;
+    int size = minSize;
+
+    QBENCHMARK {
+        w.resize(size, size);
+        size = qMax(minSize, (size + 10) % maxSize);
+        QApplication::processEvents();
+        QApplication::processEvents();
+    }
+}
+
+QTEST_MAIN(tst_QWidget)
+
+#include "tst_qwidget.moc"