1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the test suite of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include <qtest.h>

    43 #include <QtGui>

    44 

    45 static void processEvents()

    46 {

    47     QApplication::flush();

    48     QApplication::processEvents();

    49     QApplication::processEvents();

    50 }

    51 

    52 class UpdateWidget : public QWidget

    53 {

    54 public:

    55     UpdateWidget(int rows, int columns)

    56         : QWidget(0), rowCount(0), columnCount(0), opaqueChildren(false)

    57     {

    58         fill(rows, columns);

    59     }

    60 

    61     UpdateWidget(QWidget *parent = 0)

    62         : QWidget(parent), rowCount(0), columnCount(0), opaqueChildren(false) {}

    63 

    64     void fill(int rows, int columns)

    65     {

    66         if (rows == rowCount && columns == columnCount)

    67             return;

    68         delete layout();

    69         QGridLayout *layout = new QGridLayout;

    70         rowCount = rows;

    71         columnCount = columns;

    72         for (int row = 0; row < rowCount; ++row) {

    73             for (int column = 0; column < columnCount; ++column) {

    74                 UpdateWidget *widget = new UpdateWidget;

    75                 widget->setFixedSize(20, 20);

    76                 layout->addWidget(widget, row, column);

    77                 children.append(widget);

    78             }

    79         }

    80         setLayout(layout);

    81         adjustSize();

    82         QTest::qWait(250);

    83         processEvents();

    84     }

    85 

    86     void setOpaqueChildren(bool enable)

    87     {

    88         if (opaqueChildren != enable) {

    89             foreach (QWidget *w, children)

    90                 w->setAttribute(Qt::WA_OpaquePaintEvent, enable);

    91             opaqueChildren = enable;

    92             processEvents();

    93         }

    94     }

    95 

    96     void paintEvent(QPaintEvent *)

    97     {

    98         static int color = Qt::black;

    99 

   100         QPainter painter(this);

   101         painter.fillRect(rect(), Qt::GlobalColor(color));

   102 

   103         if (++color > Qt::darkYellow)

   104             color = Qt::black;

   105     }

   106 

   107     QRegion updateRegion;

   108     QList<UpdateWidget*> children;

   109     int rowCount;

   110     int columnCount;

   111     bool opaqueChildren;

   112 };

   113 

   114 class tst_QWidget : public QObject

   115 {

   116     Q_OBJECT

   117 

   118 public slots:

   119     void initTestCase();

   120     void init();

   121 

   122 private slots:

   123     void update_data();

   124     void update();

   125     void updatePartial_data();

   126     void updatePartial();

   127     void updateComplex_data();

   128     void updateComplex();

   129 

   130 private:

   131     UpdateWidget widget;

   132 };

   133 

   134 void tst_QWidget::initTestCase()

   135 {

   136     widget.show();

   137     QTest::qWaitForWindowShown(&widget);

   138     QTest::qWait(300);

   139     processEvents();

   140 }

   141 

   142 void tst_QWidget::init()

   143 {

   144     QVERIFY(widget.isVisible());

   145     for (int i = 0; i < 3; ++i)

   146         processEvents();

   147 }

   148 

   149 void tst_QWidget::update_data()

   150 {

   151     QTest::addColumn<int>("rows");

   152     QTest::addColumn<int>("columns");

   153     QTest::addColumn<int>("numUpdates");

   154     QTest::addColumn<bool>("opaque");

   155 

   156     QTest::newRow("10x10x1 transparent")   << 10 << 10 << 1   << false;

   157     QTest::newRow("10x10x10 transparent")  << 10 << 10 << 10  << false;

   158     QTest::newRow("10x10x100 transparent") << 10 << 10 << 100 << false;

   159     QTest::newRow("10x10x1 opaque")        << 10 << 10 << 1   << true;

   160     QTest::newRow("10x10x10 opaque")       << 10 << 10 << 10  << true;

   161     QTest::newRow("10x10x100 opaque")      << 10 << 10 << 100 << true;

   162     QTest::newRow("25x25x1 transparent ")  << 25 << 25 << 1   << false;

   163     QTest::newRow("25x25x10 transparent")  << 25 << 25 << 10  << false;

   164     QTest::newRow("25x25x100 transparent") << 25 << 25 << 100 << false;

   165     QTest::newRow("25x25x1 opaque")        << 25 << 25 << 1   << true;

   166     QTest::newRow("25x25x10 opaque")       << 25 << 25 << 10  << true;

   167     QTest::newRow("25x25x100 opaque")      << 25 << 25 << 100 << true;

   168 }

   169 

   170 void tst_QWidget::update()

   171 {

   172     QFETCH(int, rows);

   173     QFETCH(int, columns);

   174     QFETCH(int, numUpdates);

   175     QFETCH(bool, opaque);

   176 

   177     widget.fill(rows, columns);

   178     widget.setOpaqueChildren(opaque);

   179 

   180     QBENCHMARK {

   181         for (int i = 0; i < widget.children.size(); ++i) {

   182             for (int j = 0; j < numUpdates; ++j)

   183                 widget.children.at(i)->update();

   184             QApplication::processEvents();

   185         }

   186     }

   187 

   188     QApplication::flush();

   189 }

   190 

   191 void tst_QWidget::updatePartial_data()

   192 {

   193     update_data();

   194 }

   195 

   196 void tst_QWidget::updatePartial()

   197 {

   198     QFETCH(int, rows);

   199     QFETCH(int, columns);

   200     QFETCH(int, numUpdates);

   201     QFETCH(bool, opaque);

   202 

   203     widget.fill(rows, columns);

   204     widget.setOpaqueChildren(opaque);

   205 

   206     QBENCHMARK {

   207         for (int i = 0; i < widget.children.size(); ++i) {

   208             QWidget *w = widget.children[i];

   209             const int x = w->width() / 2;

   210             const int y = w->height() / 2;

   211             for (int j = 0; j < numUpdates; ++j) {

   212                 w->update(0, 0, x, y);

   213                 w->update(x, 0, x, y);

   214                 w->update(0, y, x, y);

   215                 w->update(x, y, x, y);

   216             }

   217             QApplication::processEvents();

   218         }

   219     }

   220 }

   221 

   222 void tst_QWidget::updateComplex_data()

   223 {

   224     update_data();

   225 }

   226 

   227 void tst_QWidget::updateComplex()

   228 {

   229     QFETCH(int, rows);

   230     QFETCH(int, columns);

   231     QFETCH(int, numUpdates);

   232     QFETCH(bool, opaque);

   233 

   234     widget.fill(rows, columns);

   235     widget.setOpaqueChildren(opaque);

   236 

   237     QBENCHMARK {

   238         for (int i = 0; i < widget.children.size(); ++i) {

   239             QWidget *w = widget.children[i];

   240             const int x = w->width() / 2;

   241             const int y = w->height() / 2;

   242             QRegion r1(0, 0, x, y, QRegion::Ellipse);

   243             QRegion r2(x, y, x, y, QRegion::Ellipse);

   244             for (int j = 0; j < numUpdates; ++j) {

   245                 w->update(r1);

   246                 w->update(r2);

   247             }

   248             QApplication::processEvents();

   249         }

   250     }

   251 }

   252 

   253 QTEST_MAIN(tst_QWidget)

   254 

   255 #include "tst_qwidget.moc"