Long live Qt 4.5!

6 files changed, 882 insertions, 0 deletions

diff --git a/demos/pathstroke/main.cpp b/demos/pathstroke/main.cpp
new file mode 100644
index 0000000..613d835
--- /dev/null
+++ b/demos/pathstroke/main.cpp
@@ -0,0 +1,69 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 "pathstroke.h"
+#include <QApplication>
+
+int main(int argc, char **argv)
+{
+    Q_INIT_RESOURCE(pathstroke);
+
+    QApplication app(argc, argv);
+
+    bool smallScreen = false;
+    for (int i=0; i<argc; i++)
+        if (QString(argv[i]) == "-small-screen")
+            smallScreen = true;
+
+    PathStrokeWidget pathStrokeWidget(smallScreen);
+    QStyle *arthurStyle = new ArthurStyle();
+    pathStrokeWidget.setStyle(arthurStyle);
+    QList<QWidget *> widgets = qFindChildren<QWidget *>(&pathStrokeWidget);
+    foreach (QWidget *w, widgets)
+        w->setStyle(arthurStyle);
+
+    if (smallScreen)
+        pathStrokeWidget.showFullScreen();
+    else
+        pathStrokeWidget.show();
+
+    return app.exec();
+}
diff --git a/demos/pathstroke/pathstroke.cpp b/demos/pathstroke/pathstroke.cpp
new file mode 100644
index 0000000..d079490
--- /dev/null
+++ b/demos/pathstroke/pathstroke.cpp
@@ -0,0 +1,599 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 "pathstroke.h"
+#include "arthurstyle.h"
+#include "arthurwidgets.h"
+
+#include <stdio.h>
+
+extern void draw_round_rect(QPainter *p, const QRect &bounds, int radius);
+
+
+PathStrokeControls::PathStrokeControls(QWidget* parent, PathStrokeRenderer* renderer, bool smallScreen)
+      : QWidget(parent)
+{
+    m_renderer = renderer;
+
+    if (smallScreen)
+        layoutForSmallScreens();
+    else
+        layoutForDesktop();
+}
+
+void PathStrokeControls::createCommonControls(QWidget* parent)
+{
+    m_capGroup = new QGroupBox(parent);
+    m_capGroup->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
+    QRadioButton *flatCap = new QRadioButton(m_capGroup);
+    QRadioButton *squareCap = new QRadioButton(m_capGroup);
+    QRadioButton *roundCap = new QRadioButton(m_capGroup);
+    m_capGroup->setTitle(tr("Cap Style"));
+    flatCap->setText(tr("Flat"));
+    squareCap->setText(tr("Square"));
+    roundCap->setText(tr("Round"));
+    flatCap->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    squareCap->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    roundCap->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+
+    m_joinGroup = new QGroupBox(parent);
+    m_joinGroup->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
+    QRadioButton *bevelJoin = new QRadioButton(m_joinGroup);
+    QRadioButton *miterJoin = new QRadioButton(m_joinGroup);
+    QRadioButton *roundJoin = new QRadioButton(m_joinGroup);
+    m_joinGroup->setTitle(tr("Join Style"));
+    bevelJoin->setText(tr("Bevel"));
+    miterJoin->setText(tr("Miter"));
+    roundJoin->setText(tr("Round"));
+
+    m_styleGroup = new QGroupBox(parent);
+    m_styleGroup->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
+    QRadioButton *solidLine = new QRadioButton(m_styleGroup);
+    QRadioButton *dashLine = new QRadioButton(m_styleGroup);
+    QRadioButton *dotLine = new QRadioButton(m_styleGroup);
+    QRadioButton *dashDotLine = new QRadioButton(m_styleGroup);
+    QRadioButton *dashDotDotLine = new QRadioButton(m_styleGroup);
+    QRadioButton *customDashLine = new QRadioButton(m_styleGroup);
+    m_styleGroup->setTitle(tr("Pen Style"));
+
+    QPixmap line_solid(":res/images/line_solid.png");
+    solidLine->setIcon(line_solid);
+    solidLine->setIconSize(line_solid.size());
+    QPixmap line_dashed(":res/images/line_dashed.png");
+    dashLine->setIcon(line_dashed);
+    dashLine->setIconSize(line_dashed.size());
+    QPixmap line_dotted(":res/images/line_dotted.png");
+    dotLine->setIcon(line_dotted);
+    dotLine->setIconSize(line_dotted.size());
+    QPixmap line_dash_dot(":res/images/line_dash_dot.png");
+    dashDotLine->setIcon(line_dash_dot);
+    dashDotLine->setIconSize(line_dash_dot.size());
+    QPixmap line_dash_dot_dot(":res/images/line_dash_dot_dot.png");
+    dashDotDotLine->setIcon(line_dash_dot_dot);
+    dashDotDotLine->setIconSize(line_dash_dot_dot.size());
+    customDashLine->setText(tr("Custom"));
+
+    int fixedHeight = bevelJoin->sizeHint().height();
+    solidLine->setFixedHeight(fixedHeight);
+    dashLine->setFixedHeight(fixedHeight);
+    dotLine->setFixedHeight(fixedHeight);
+    dashDotLine->setFixedHeight(fixedHeight);
+    dashDotDotLine->setFixedHeight(fixedHeight);
+
+    m_pathModeGroup = new QGroupBox(parent);
+    m_pathModeGroup->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
+    QRadioButton *curveMode = new QRadioButton(m_pathModeGroup);
+    QRadioButton *lineMode = new QRadioButton(m_pathModeGroup);
+    m_pathModeGroup->setTitle(tr("Line Style"));
+    curveMode->setText(tr("Curves"));
+    lineMode->setText(tr("Lines"));
+
+
+    // Layouts
+    QVBoxLayout *capGroupLayout = new QVBoxLayout(m_capGroup);
+    capGroupLayout->addWidget(flatCap);
+    capGroupLayout->addWidget(squareCap);
+    capGroupLayout->addWidget(roundCap);
+
+    QVBoxLayout *joinGroupLayout = new QVBoxLayout(m_joinGroup);
+    joinGroupLayout->addWidget(bevelJoin);
+    joinGroupLayout->addWidget(miterJoin);
+    joinGroupLayout->addWidget(roundJoin);
+
+    QVBoxLayout *styleGroupLayout = new QVBoxLayout(m_styleGroup);
+    styleGroupLayout->addWidget(solidLine);
+    styleGroupLayout->addWidget(dashLine);
+    styleGroupLayout->addWidget(dotLine);
+    styleGroupLayout->addWidget(dashDotLine);
+    styleGroupLayout->addWidget(dashDotDotLine);
+    styleGroupLayout->addWidget(customDashLine);
+
+    QVBoxLayout *pathModeGroupLayout = new QVBoxLayout(m_pathModeGroup);
+    pathModeGroupLayout->addWidget(curveMode);
+    pathModeGroupLayout->addWidget(lineMode);
+
+
+    // Connections
+    connect(flatCap, SIGNAL(clicked()), m_renderer, SLOT(setFlatCap()));
+    connect(squareCap, SIGNAL(clicked()), m_renderer, SLOT(setSquareCap()));
+    connect(roundCap, SIGNAL(clicked()), m_renderer, SLOT(setRoundCap()));
+
+    connect(bevelJoin, SIGNAL(clicked()), m_renderer, SLOT(setBevelJoin()));
+    connect(miterJoin, SIGNAL(clicked()), m_renderer, SLOT(setMiterJoin()));
+    connect(roundJoin, SIGNAL(clicked()), m_renderer, SLOT(setRoundJoin()));
+
+    connect(curveMode, SIGNAL(clicked()), m_renderer, SLOT(setCurveMode()));
+    connect(lineMode, SIGNAL(clicked()), m_renderer, SLOT(setLineMode()));
+
+    connect(solidLine, SIGNAL(clicked()), m_renderer, SLOT(setSolidLine()));
+    connect(dashLine, SIGNAL(clicked()), m_renderer, SLOT(setDashLine()));
+    connect(dotLine, SIGNAL(clicked()), m_renderer, SLOT(setDotLine()));
+    connect(dashDotLine, SIGNAL(clicked()), m_renderer, SLOT(setDashDotLine()));
+    connect(dashDotDotLine, SIGNAL(clicked()), m_renderer, SLOT(setDashDotDotLine()));
+    connect(customDashLine, SIGNAL(clicked()), m_renderer, SLOT(setCustomDashLine()));
+
+    // Set the defaults:
+    flatCap->setChecked(true);
+    bevelJoin->setChecked(true);
+    curveMode->setChecked(true);
+    solidLine->setChecked(true);
+}
+
+
+void PathStrokeControls::layoutForDesktop()
+{
+    QGroupBox *mainGroup = new QGroupBox(this);
+    mainGroup->setFixedWidth(180);
+    mainGroup->setTitle(tr("Path Stroking"));
+
+    createCommonControls(mainGroup);
+
+    QGroupBox* penWidthGroup = new QGroupBox(mainGroup);
+    QSlider *penWidth = new QSlider(Qt::Horizontal, penWidthGroup);
+    penWidth->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
+    penWidthGroup->setTitle(tr("Pen Width"));
+    penWidth->setRange(0, 500);
+
+    QPushButton *animated = new QPushButton(mainGroup);
+    animated->setText(tr("Animate"));
+    animated->setCheckable(true);
+
+    QPushButton *showSourceButton = new QPushButton(mainGroup);
+    showSourceButton->setText(tr("Show Source"));
+#ifdef QT_OPENGL_SUPPORT
+    QPushButton *enableOpenGLButton = new QPushButton(mainGroup);
+    enableOpenGLButton->setText(tr("Use OpenGL"));
+    enableOpenGLButton->setCheckable(true);
+    enableOpenGLButton->setChecked(m_renderer->usesOpenGL());
+    if (!QGLFormat::hasOpenGL())
+        enableOpenGLButton->hide();
+#endif
+    QPushButton *whatsThisButton = new QPushButton(mainGroup);
+    whatsThisButton->setText(tr("What's This?"));
+    whatsThisButton->setCheckable(true);
+
+
+    // Layouts:
+    QVBoxLayout *penWidthLayout = new QVBoxLayout(penWidthGroup);
+    penWidthLayout->addWidget(penWidth);
+
+    QVBoxLayout * mainLayout = new QVBoxLayout(this);
+    mainLayout->setMargin(0);
+    mainLayout->addWidget(mainGroup);
+
+    QVBoxLayout *mainGroupLayout = new QVBoxLayout(mainGroup);
+    mainGroupLayout->setMargin(3);
+    mainGroupLayout->addWidget(m_capGroup);
+    mainGroupLayout->addWidget(m_joinGroup);
+    mainGroupLayout->addWidget(m_styleGroup);
+    mainGroupLayout->addWidget(penWidthGroup);
+    mainGroupLayout->addWidget(m_pathModeGroup);
+    mainGroupLayout->addWidget(animated);
+    mainGroupLayout->addStretch(1);
+    mainGroupLayout->addWidget(showSourceButton);
+#ifdef QT_OPENGL_SUPPORT
+    mainGroupLayout->addWidget(enableOpenGLButton);
+#endif
+    mainGroupLayout->addWidget(whatsThisButton);
+
+
+    // Set up connections
+    connect(animated, SIGNAL(toggled(bool)),
+            m_renderer, SLOT(setAnimation(bool)));
+
+    connect(penWidth, SIGNAL(valueChanged(int)),
+            m_renderer, SLOT(setPenWidth(int)));
+
+    connect(showSourceButton, SIGNAL(clicked()), m_renderer, SLOT(showSource()));
+#ifdef QT_OPENGL_SUPPORT
+    connect(enableOpenGLButton, SIGNAL(clicked(bool)), m_renderer, SLOT(enableOpenGL(bool)));
+#endif
+    connect(whatsThisButton, SIGNAL(clicked(bool)), m_renderer, SLOT(setDescriptionEnabled(bool)));
+    connect(m_renderer, SIGNAL(descriptionEnabledChanged(bool)),
+            whatsThisButton, SLOT(setChecked(bool)));
+
+
+    // Set the defaults
+    animated->setChecked(true);
+    penWidth->setValue(50);
+
+}
+
+void PathStrokeControls::layoutForSmallScreens()
+{
+    createCommonControls(this);
+
+    m_capGroup->layout()->setMargin(0);
+    m_joinGroup->layout()->setMargin(0);
+    m_styleGroup->layout()->setMargin(0);
+    m_pathModeGroup->layout()->setMargin(0);
+
+    QPushButton* okBtn = new QPushButton(tr("OK"), this);
+    okBtn->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    okBtn->setMinimumSize(100,okBtn->minimumSize().height());
+
+    QPushButton* quitBtn = new QPushButton(tr("Quit"), this);
+    quitBtn->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    quitBtn->setMinimumSize(100, okBtn->minimumSize().height());
+
+    QLabel *penWidthLabel = new QLabel(tr(" Width:"));
+    QSlider *penWidth = new QSlider(Qt::Horizontal, this);
+    penWidth->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
+    penWidth->setRange(0, 500);
+
+#ifdef QT_OPENGL_SUPPORT
+    QPushButton *enableOpenGLButton = new QPushButton(this);
+    enableOpenGLButton->setText(tr("Use OpenGL"));
+    enableOpenGLButton->setCheckable(true);
+    enableOpenGLButton->setChecked(m_renderer->usesOpenGL());
+    if (!QGLFormat::hasOpenGL())
+        enableOpenGLButton->hide();
+#endif
+
+    // Layouts:
+    QHBoxLayout *penWidthLayout = new QHBoxLayout(0);
+    penWidthLayout->addWidget(penWidthLabel, 0, Qt::AlignRight);
+    penWidthLayout->addWidget(penWidth);
+
+    QVBoxLayout *leftLayout = new QVBoxLayout(0);
+    leftLayout->addWidget(m_capGroup);
+    leftLayout->addWidget(m_joinGroup);
+#ifdef QT_OPENGL_SUPPORT
+    leftLayout->addWidget(enableOpenGLButton);
+#endif
+    leftLayout->addLayout(penWidthLayout);
+
+    QVBoxLayout *rightLayout = new QVBoxLayout(0);
+    rightLayout->addWidget(m_styleGroup);
+    rightLayout->addWidget(m_pathModeGroup);
+
+    QGridLayout *mainLayout = new QGridLayout(this);
+    mainLayout->setMargin(0);
+
+    // Add spacers around the form items so we don't look stupid at higher resolutions
+    mainLayout->addItem(new QSpacerItem(0,0), 0, 0, 1, 4);
+    mainLayout->addItem(new QSpacerItem(0,0), 1, 0, 2, 1);
+    mainLayout->addItem(new QSpacerItem(0,0), 1, 3, 2, 1);
+    mainLayout->addItem(new QSpacerItem(0,0), 3, 0, 1, 4);
+
+    mainLayout->addLayout(leftLayout, 1, 1);
+    mainLayout->addLayout(rightLayout, 1, 2);
+    mainLayout->addWidget(quitBtn, 2, 1, Qt::AlignHCenter | Qt::AlignTop);
+    mainLayout->addWidget(okBtn, 2, 2, Qt::AlignHCenter | Qt::AlignTop);
+
+#ifdef QT_OPENGL_SUPPORT
+    connect(enableOpenGLButton, SIGNAL(clicked(bool)), m_renderer, SLOT(enableOpenGL(bool)));
+#endif
+
+    connect(penWidth, SIGNAL(valueChanged(int)), m_renderer, SLOT(setPenWidth(int)));
+    connect(quitBtn, SIGNAL(clicked()), this, SLOT(emitQuitSignal()));
+    connect(okBtn, SIGNAL(clicked()), this, SLOT(emitOkSignal()));
+
+    m_renderer->setAnimation(true);
+    penWidth->setValue(50);
+}
+
+void PathStrokeControls::emitQuitSignal()
+{   emit quitPressed();  }
+
+void PathStrokeControls::emitOkSignal()
+{   emit okPressed();   }
+
+
+PathStrokeWidget::PathStrokeWidget(bool smallScreen)
+{
+    setWindowTitle(tr("Path Stroking"));
+
+    // Widget construction and property setting
+    m_renderer = new PathStrokeRenderer(this, smallScreen);
+
+    m_controls = new PathStrokeControls(0, m_renderer, smallScreen);
+
+    // Layouting
+    QHBoxLayout *viewLayout = new QHBoxLayout(this);
+    viewLayout->addWidget(m_renderer);
+
+    if (!smallScreen)
+        viewLayout->addWidget(m_controls);
+
+    m_renderer->loadSourceFile(":res/pathstroke/pathstroke.cpp");
+    m_renderer->loadDescription(":res/pathstroke/pathstroke.html");
+
+    connect(m_renderer, SIGNAL(clicked()), this, SLOT(showControls()));
+    connect(m_controls, SIGNAL(okPressed()), this, SLOT(hideControls()));
+    connect(m_controls, SIGNAL(quitPressed()), QApplication::instance(), SLOT(quit()));
+}
+
+
+void PathStrokeWidget::showControls()
+{
+    m_controls->showFullScreen();
+}
+
+
+void PathStrokeWidget::hideControls()
+{
+    m_controls->hide();
+}
+
+
+void PathStrokeWidget::setStyle( QStyle * style )
+{
+    QWidget::setStyle(style);
+    if (m_controls != 0)
+    {
+        m_controls->setStyle(style);
+        
+        QList<QWidget *> widgets = qFindChildren<QWidget *>(m_controls);
+        foreach (QWidget *w, widgets)
+            w->setStyle(style);
+    }
+}
+
+
+PathStrokeRenderer::PathStrokeRenderer(QWidget *parent, bool smallScreen)
+    : ArthurFrame(parent)
+{
+    m_smallScreen = smallScreen;
+    m_pointSize = 10;
+    m_activePoint = -1;
+    m_capStyle = Qt::FlatCap;
+    m_joinStyle = Qt::BevelJoin;
+    m_pathMode = CurveMode;
+    m_penWidth = 1;
+    m_penStyle = Qt::SolidLine;
+    m_wasAnimated = true;
+    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+}
+
+void PathStrokeRenderer::paint(QPainter *painter)
+{
+    if (m_points.isEmpty())
+        initializePoints();
+
+    painter->setRenderHint(QPainter::Antialiasing);
+
+    QPalette pal = palette();
+    painter->setPen(Qt::NoPen);
+
+    // Construct the path
+    QPainterPath path;
+    path.moveTo(m_points.at(0));
+
+    if (m_pathMode == LineMode) {
+        for (int i=1; i<m_points.size(); ++i) {
+            path.lineTo(m_points.at(i));
+        }
+    } else {
+        int i=1;
+        while (i + 2 < m_points.size()) {
+            path.cubicTo(m_points.at(i), m_points.at(i+1), m_points.at(i+2));
+            i += 3;
+        }
+        while (i < m_points.size()) {
+            path.lineTo(m_points.at(i));
+            ++i;
+        }
+    }
+
+    // Draw the path
+    {
+        QColor lg = Qt::red;
+
+        // The "custom" pen
+        if (m_penStyle == Qt::NoPen) {
+            QPainterPathStroker stroker;
+            stroker.setWidth(m_penWidth);
+            stroker.setJoinStyle(m_joinStyle);
+            stroker.setCapStyle(m_capStyle);
+
+            QVector<qreal> dashes;
+            qreal space = 4;
+            dashes << 1 << space
+                   << 3 << space
+                   << 9 << space
+                   << 27 << space
+                   << 9 << space
+                   << 3 << space;
+            stroker.setDashPattern(dashes);
+            QPainterPath stroke = stroker.createStroke(path);
+            painter->fillPath(stroke, lg);
+
+        } else {
+            QPen pen(lg, m_penWidth, m_penStyle, m_capStyle, m_joinStyle);
+            painter->strokePath(path, pen);
+        }
+    }
+
+    if (1) {
+        // Draw the control points
+        painter->setPen(QColor(50, 100, 120, 200));
+        painter->setBrush(QColor(200, 200, 210, 120));
+        for (int i=0; i<m_points.size(); ++i) {
+            QPointF pos = m_points.at(i);
+            painter->drawEllipse(QRectF(pos.x() - m_pointSize,
+                                       pos.y() - m_pointSize,
+                                       m_pointSize*2, m_pointSize*2));
+        }
+        painter->setPen(QPen(Qt::lightGray, 0, Qt::SolidLine));
+        painter->setBrush(Qt::NoBrush);
+        painter->drawPolyline(m_points);
+    }
+
+}
+
+void PathStrokeRenderer::initializePoints()
+{
+    const int count = 7;
+    m_points.clear();
+    m_vectors.clear();
+
+    QMatrix m;
+    qreal rot = 360 / count;
+    QPointF center(width() / 2, height() / 2);
+    QMatrix vm;
+    vm.shear(2, -1);
+    vm.scale(3, 3);
+
+    for (int i=0; i<count; ++i) {
+        m_vectors << QPointF(.1f, .25f) * (m * vm);
+        m_points << QPointF(0, 100) * m + center;
+        m.rotate(rot);
+    }
+}
+
+void PathStrokeRenderer::updatePoints()
+{
+    qreal pad = 10;
+    qreal left = pad;
+    qreal right = width() - pad;
+    qreal top = pad;
+    qreal bottom = height() - pad;
+
+    Q_ASSERT(m_points.size() == m_vectors.size());
+    for (int i=0; i<m_points.size(); ++i) {
+
+        if (i == m_activePoint)
+            continue;
+
+        QPointF pos = m_points.at(i);
+        QPointF vec = m_vectors.at(i);
+        pos += vec;
+        if (pos.x() < left || pos.x() > right) {
+            vec.setX(-vec.x());
+            pos.setX(pos.x() < left ? left : right);
+        } if (pos.y() < top || pos.y() > bottom) {
+            vec.setY(-vec.y());
+            pos.setY(pos.y() < top ? top : bottom);
+        }
+        m_points[i] = pos;
+        m_vectors[i] = vec;
+    }
+    update();
+}
+
+void PathStrokeRenderer::mousePressEvent(QMouseEvent *e)
+{
+    setDescriptionEnabled(false);
+    m_activePoint = -1;
+    qreal distance = -1;
+    for (int i=0; i<m_points.size(); ++i) {
+        qreal d = QLineF(e->pos(), m_points.at(i)).length();
+        if ((distance < 0 && d < 8 * m_pointSize) || d < distance) {
+            distance = d;
+            m_activePoint = i;
+        }
+    }
+
+    if (m_activePoint != -1) {
+        m_wasAnimated = m_timer.isActive();
+        setAnimation(false);
+        mouseMoveEvent(e);
+    }
+    
+    // If we're not running in small screen mode, always assume we're dragging
+    m_mouseDrag = !m_smallScreen;
+    m_mousePress = e->pos();
+}
+
+void PathStrokeRenderer::mouseMoveEvent(QMouseEvent *e)
+{
+    // If we've moved more then 25 pixels, assume user is dragging
+    if (!m_mouseDrag && QPoint(m_mousePress - e->pos()).manhattanLength() > 25)
+        m_mouseDrag = true;
+
+    if (m_mouseDrag && m_activePoint >= 0 && m_activePoint < m_points.size()) {
+        m_points[m_activePoint] = e->pos();
+        update();
+    }
+}
+
+void PathStrokeRenderer::mouseReleaseEvent(QMouseEvent *)
+{
+    m_activePoint = -1;
+    setAnimation(m_wasAnimated);
+
+    if (!m_mouseDrag && m_smallScreen)
+        emit clicked();
+}
+
+void PathStrokeRenderer::timerEvent(QTimerEvent *e)
+{
+    if (e->timerId() == m_timer.timerId()) {
+        updatePoints();
+        QApplication::syncX();
+    } // else if (e->timerId() == m_fpsTimer.timerId()) {
+//         emit frameRate(m_frameCount);
+//         m_frameCount = 0;
+//     }
+}
+
+void PathStrokeRenderer::setAnimation(bool animation)
+{
+    m_timer.stop();
+//     m_fpsTimer.stop();
+
+    if (animation) {
+        m_timer.start(25, this);
+//         m_fpsTimer.start(1000, this);
+//         m_frameCount = 0;
+    }
+}
diff --git a/demos/pathstroke/pathstroke.h b/demos/pathstroke/pathstroke.h
new file mode 100644
index 0000000..99f17a7
--- /dev/null
+++ b/demos/pathstroke/pathstroke.h
@@ -0,0 +1,168 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef PATHSTROKE_H
+#define PATHSTROKE_H
+
+#include "arthurwidgets.h"
+#include <QtGui>
+
+class PathStrokeRenderer : public ArthurFrame
+{
+    Q_OBJECT
+    Q_PROPERTY(bool animation READ animation WRITE setAnimation)
+    Q_PROPERTY(qreal penWidth READ realPenWidth WRITE setRealPenWidth)
+public:
+    enum PathMode { CurveMode, LineMode };
+
+    PathStrokeRenderer(QWidget *parent, bool smallScreen = false);
+
+    void paint(QPainter *);
+    void mousePressEvent(QMouseEvent *e);
+    void mouseMoveEvent(QMouseEvent *e);
+    void mouseReleaseEvent(QMouseEvent *e);
+    void timerEvent(QTimerEvent *e);
+
+    QSize sizeHint() const { return QSize(500, 500); }
+
+    bool animation() const { return m_timer.isActive(); }
+
+    qreal realPenWidth() const { return m_penWidth; }
+    void setRealPenWidth(qreal penWidth) { m_penWidth = penWidth; update(); }
+
+signals:
+    void clicked();
+
+public slots:
+    void setPenWidth(int penWidth) { m_penWidth = penWidth / 10.0; update(); }
+    void setAnimation(bool animation);
+
+    void setFlatCap() { m_capStyle = Qt::FlatCap; update(); }
+    void setSquareCap() { m_capStyle = Qt::SquareCap; update(); }
+    void setRoundCap() { m_capStyle = Qt::RoundCap; update(); }
+
+    void setBevelJoin() { m_joinStyle = Qt::BevelJoin; update(); }
+    void setMiterJoin() { m_joinStyle = Qt::MiterJoin; update(); }
+    void setRoundJoin() { m_joinStyle = Qt::RoundJoin; update(); }
+
+    void setCurveMode() { m_pathMode = CurveMode; update(); }
+    void setLineMode() { m_pathMode = LineMode; update(); }
+
+    void setSolidLine() { m_penStyle = Qt::SolidLine; update(); }
+    void setDashLine() { m_penStyle = Qt::DashLine; update(); }
+    void setDotLine() { m_penStyle = Qt::DotLine; update(); }
+    void setDashDotLine() { m_penStyle = Qt::DashDotLine; update(); }
+    void setDashDotDotLine() { m_penStyle = Qt::DashDotDotLine; update(); }
+    void setCustomDashLine() { m_penStyle = Qt::NoPen; update(); }
+
+private:
+    void initializePoints();
+    void updatePoints();
+
+    QBasicTimer m_timer;
+
+    PathMode m_pathMode;
+
+    bool m_wasAnimated;
+
+    qreal m_penWidth;
+    int m_pointCount;
+    int m_pointSize;
+    int m_activePoint;
+    QVector<QPointF> m_points;
+    QVector<QPointF> m_vectors;
+
+    Qt::PenJoinStyle m_joinStyle;
+    Qt::PenCapStyle m_capStyle;
+
+    Qt::PenStyle m_penStyle;
+
+    bool m_smallScreen;
+    QPoint m_mousePress;
+    bool m_mouseDrag;
+};
+
+class PathStrokeControls : public QWidget
+{
+    Q_OBJECT
+public:
+    PathStrokeControls(QWidget* parent, PathStrokeRenderer* renderer, bool smallScreen);
+
+signals:
+    void okPressed();
+    void quitPressed();
+
+private:
+    PathStrokeRenderer* m_renderer;
+
+    QGroupBox *m_capGroup;
+    QGroupBox *m_joinGroup;
+    QGroupBox *m_styleGroup;
+    QGroupBox *m_pathModeGroup;
+
+    void createCommonControls(QWidget* parent);
+    void layoutForDesktop();
+    void layoutForSmallScreens();
+
+private slots:
+    void emitQuitSignal();
+    void emitOkSignal();
+
+};
+
+class PathStrokeWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    PathStrokeWidget(bool smallScreen);
+    void setStyle ( QStyle * style );
+
+private:
+    PathStrokeRenderer *m_renderer;
+    PathStrokeControls *m_controls;
+
+private slots:
+    void showControls();
+    void hideControls();
+
+};
+
+#endif // PATHSTROKE_H
diff --git a/demos/pathstroke/pathstroke.html b/demos/pathstroke/pathstroke.html
new file mode 100644
index 0000000..9e7e50d
--- /dev/null
+++ b/demos/pathstroke/pathstroke.html
@@ -0,0 +1,20 @@
+<html>
+<center>
+<h2>Primitive Stroking</h2>
+</center>
+
+<p>In this demo we show some of the various types of pens that can be
+used in Qt.</p>
+
+<p>Qt defines cap styles for how the end points are treated and join
+styles for how path segments are joined together. A standard set of
+predefined dash patterns are also included that can be used with
+<code>QPen</code>.</p>
+
+<p>In addition to the predefined patterns available in
+<code>QPen</code> we also demonstrate direct use of the
+<code>QPainterPathStroker</code> class which can be used to define
+custom dash patterns. You can see this by enabling the
+<i>Custom Pattern</i> option.</p>
+
+</html>
diff --git a/demos/pathstroke/pathstroke.pro b/demos/pathstroke/pathstroke.pro
new file mode 100644
index 0000000..50b4de2
--- /dev/null
+++ b/demos/pathstroke/pathstroke.pro
@@ -0,0 +1,20 @@
+SOURCES += main.cpp pathstroke.cpp
+HEADERS += pathstroke.h
+
+SHARED_FOLDER = ../shared
+
+include($$SHARED_FOLDER/shared.pri)
+
+RESOURCES += pathstroke.qrc
+
+contains(QT_CONFIG, opengl) {
+	DEFINES += QT_OPENGL_SUPPORT
+	QT += opengl
+}
+
+# install
+target.path = $$[QT_INSTALL_DEMOS]/pathstroke
+sources.files = $$SOURCES $$HEADERS $$RESOURCES *.pro *.html
+sources.path = $$[QT_INSTALL_DEMOS]/pathstroke
+INSTALLS += target sources
+
diff --git a/demos/pathstroke/pathstroke.qrc b/demos/pathstroke/pathstroke.qrc
new file mode 100644
index 0000000..a9a7234
--- /dev/null
+++ b/demos/pathstroke/pathstroke.qrc
@@ -0,0 +1,6 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource prefix="/res/pathstroke">
+   <file>pathstroke.cpp</file>
+   <file>pathstroke.html</file>
+</qresource>
+</RCC>