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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /demos/pathstroke
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
Diffstat (limited to 'demos/pathstroke')
-rw-r--r--demos/pathstroke/main.cpp71
-rw-r--r--demos/pathstroke/pathstroke.cpp686
-rw-r--r--demos/pathstroke/pathstroke.h171
-rw-r--r--demos/pathstroke/pathstroke.html20
-rw-r--r--demos/pathstroke/pathstroke.pro24
-rw-r--r--demos/pathstroke/pathstroke.qrc6
6 files changed, 978 insertions, 0 deletions
diff --git a/demos/pathstroke/main.cpp b/demos/pathstroke/main.cpp
new file mode 100644
index 0000000000..a9f6f6e5d9
--- /dev/null
+++ b/demos/pathstroke/main.cpp
@@ -0,0 +1,71 @@
+/****************************************************************************
+**
+** 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 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 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 "pathstroke.h"
+#include <QApplication>
+
+int main(int argc, char **argv)
+{
+ Q_INIT_RESOURCE(pathstroke);
+
+ QApplication app(argc, argv);
+
+ bool smallScreen = QApplication::arguments().contains("-small-screen");
+
+ PathStrokeWidget pathStrokeWidget(smallScreen);
+ QStyle *arthurStyle = new ArthurStyle();
+ pathStrokeWidget.setStyle(arthurStyle);
+ QList<QWidget *> widgets = pathStrokeWidget.findChildren<QWidget *>();
+ foreach (QWidget *w, widgets) {
+ w->setStyle(arthurStyle);
+ w->setAttribute(Qt::WA_AcceptTouchEvents);
+ }
+
+ if (smallScreen)
+ pathStrokeWidget.showFullScreen();
+ else
+ pathStrokeWidget.show();
+
+#ifdef QT_KEYPAD_NAVIGATION
+ QApplication::setNavigationMode(Qt::NavigationModeCursorAuto);
+#endif
+ return app.exec();
+}
diff --git a/demos/pathstroke/pathstroke.cpp b/demos/pathstroke/pathstroke.cpp
new file mode 100644
index 0000000000..b168914894
--- /dev/null
+++ b/demos/pathstroke/pathstroke.cpp
@@ -0,0 +1,686 @@
+/****************************************************************************
+**
+** 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 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 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 "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 = m_controls->findChildren<QWidget *>();
+ 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);
+ setAttribute(Qt::WA_AcceptTouchEvents);
+}
+
+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) {
+ 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)
+{
+ if (!m_fingerPointMapping.isEmpty())
+ return;
+ 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 (!m_fingerPointMapping.isEmpty())
+ return;
+ // 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 *)
+{
+ if (!m_fingerPointMapping.isEmpty())
+ return;
+ 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;
+// }
+}
+
+bool PathStrokeRenderer::event(QEvent *e)
+{
+ bool touchBegin = false;
+ switch (e->type()) {
+ case QEvent::TouchBegin:
+ touchBegin = true;
+ case QEvent::TouchUpdate:
+ {
+ const QTouchEvent *const event = static_cast<const QTouchEvent*>(e);
+ const QList<QTouchEvent::TouchPoint> points = event->touchPoints();
+ foreach (const QTouchEvent::TouchPoint &touchPoint, points) {
+ const int id = touchPoint.id();
+ switch (touchPoint.state()) {
+ case Qt::TouchPointPressed:
+ {
+ // find the point, move it
+ QSet<int> activePoints = QSet<int>::fromList(m_fingerPointMapping.values());
+ int activePoint = -1;
+ qreal distance = -1;
+ const int pointsCount = m_points.size();
+ for (int i=0; i<pointsCount; ++i) {
+ if (activePoints.contains(i))
+ continue;
+
+ qreal d = QLineF(touchPoint.pos(), m_points.at(i)).length();
+ if ((distance < 0 && d < 12 * m_pointSize) || d < distance) {
+ distance = d;
+ activePoint = i;
+ }
+ }
+ if (activePoint != -1) {
+ m_fingerPointMapping.insert(touchPoint.id(), activePoint);
+ m_points[activePoint] = touchPoint.pos();
+ }
+ }
+ break;
+ case Qt::TouchPointReleased:
+ {
+ // move the point and release
+ QHash<int,int>::iterator it = m_fingerPointMapping.find(id);
+ m_points[it.value()] = touchPoint.pos();
+ m_fingerPointMapping.erase(it);
+ }
+ break;
+ case Qt::TouchPointMoved:
+ {
+ // move the point
+ const int pointIdx = m_fingerPointMapping.value(id, -1);
+ if (pointIdx >= 0)
+ m_points[pointIdx] = touchPoint.pos();
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ if (m_fingerPointMapping.isEmpty()) {
+ e->ignore();
+ return false;
+ } else {
+ if (touchBegin) {
+ m_wasAnimated = m_timer.isActive();
+ setAnimation(false);
+ }
+ update();
+ return true;
+ }
+ }
+ break;
+ case QEvent::TouchEnd:
+ if (m_fingerPointMapping.isEmpty()) {
+ e->ignore();
+ return false;
+ }
+ m_fingerPointMapping.clear();
+ setAnimation(m_wasAnimated);
+ return true;
+ break;
+ default:
+ break;
+ }
+ return QWidget::event(e);
+}
+
+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 0000000000..c35c9e8d2b
--- /dev/null
+++ b/demos/pathstroke/pathstroke.h
@@ -0,0 +1,171 @@
+/****************************************************************************
+**
+** 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 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 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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);
+ bool event(QEvent *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;
+
+ QHash<int, int> m_fingerPointMapping;
+};
+
+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 0000000000..9e7e50de76
--- /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 0000000000..dd95c72769
--- /dev/null
+++ b/demos/pathstroke/pathstroke.pro
@@ -0,0 +1,24 @@
+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]/qtbase/pathstroke
+sources.files = $$SOURCES $$HEADERS $$RESOURCES *.pro *.html
+sources.path = $$[QT_INSTALL_DEMOS]/qtbase/pathstroke
+INSTALLS += target sources
+
+symbian {
+ TARGET.UID3 = 0xA000A63E
+ include($$QT_SOURCE_TREE/demos/symbianpkgrules.pri)
+}
diff --git a/demos/pathstroke/pathstroke.qrc b/demos/pathstroke/pathstroke.qrc
new file mode 100644
index 0000000000..a9a723409e
--- /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>