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28 files changed, 1605 insertions, 0 deletions
diff --git a/doc/src/examples/touch-dials.qdoc b/doc/src/examples/touch-dials.qdoc new file mode 100644 index 0000000..552d752 --- /dev/null +++ b/doc/src/examples/touch-dials.qdoc @@ -0,0 +1,36 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:FDL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in a +** written agreement between you and Nokia. +** +** GNU Free Documentation License +** Alternatively, this file may be used under the terms of the GNU Free +** Documentation License version 1.3 as published by the Free Software +** Foundation and appearing in the file included in the packaging of this +** file. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \example touch/dials + \title Touch Dials Example + + The Touch Dials example shows how to apply touch to a set of + standard Qt widgets. + + \image touch-dials-example.png +*/ diff --git a/doc/src/examples/touch-knobs.qdoc b/doc/src/examples/touch-knobs.qdoc new file mode 100644 index 0000000..deb4c28 --- /dev/null +++ b/doc/src/examples/touch-knobs.qdoc @@ -0,0 +1,36 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:FDL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in a +** written agreement between you and Nokia. +** +** GNU Free Documentation License +** Alternatively, this file may be used under the terms of the GNU Free +** Documentation License version 1.3 as published by the Free Software +** Foundation and appearing in the file included in the packaging of this +** file. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \example touch/knobs + \title Touch Knobs Example + + The Touch Knobs example shows how to create custom controls that + accept touch input. + + \image touch-knobs-example.png +*/ diff --git a/doc/src/images/touch-dials-example.png b/doc/src/images/touch-dials-example.png Binary files differnew file mode 100644 index 0000000..60e1776 --- /dev/null +++ b/doc/src/images/touch-dials-example.png diff --git a/doc/src/images/touch-examples.png b/doc/src/images/touch-examples.png Binary files differnew file mode 100644 index 0000000..b053cf3 --- /dev/null +++ b/doc/src/images/touch-examples.png diff --git a/doc/src/images/touch-fingerpaint-example.png b/doc/src/images/touch-fingerpaint-example.png Binary files differnew file mode 100644 index 0000000..c741b65 --- /dev/null +++ b/doc/src/images/touch-fingerpaint-example.png diff --git a/doc/src/images/touch-knobs-example.png b/doc/src/images/touch-knobs-example.png Binary files differnew file mode 100644 index 0000000..1cbd90d --- /dev/null +++ b/doc/src/images/touch-knobs-example.png diff --git a/doc/src/images/touch-pinchzoom-example.png b/doc/src/images/touch-pinchzoom-example.png Binary files differnew file mode 100644 index 0000000..1079fb2 --- /dev/null +++ b/doc/src/images/touch-pinchzoom-example.png diff --git a/examples/touch/dials/dials.pro b/examples/touch/dials/dials.pro new file mode 100644 index 0000000..8963153 --- /dev/null +++ b/examples/touch/dials/dials.pro @@ -0,0 +1,8 @@ +SOURCES += main.cpp +FORMS += dials.ui + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/touch/dials +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS dials.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/touch/dials +INSTALLS += target sources diff --git a/examples/touch/dials/dials.ui b/examples/touch/dials/dials.ui new file mode 100644 index 0000000..8ca7ae9 --- /dev/null +++ b/examples/touch/dials/dials.ui @@ -0,0 +1,77 @@ +<?xml version="1.0" encoding="UTF-8"?> +<ui version="4.0"> + <class>Dials</class> + <widget class="QWidget" name="Dials"> + <property name="geometry"> + <rect> + <x>0</x> + <y>0</y> + <width>400</width> + <height>300</height> + </rect> + </property> + <property name="windowTitle"> + <string>Form</string> + </property> + <layout class="QGridLayout" name="gridLayout"> + <item row="0" column="0"> + <widget class="QDial" name="dial_1"> + <property name="notchesVisible"> + <bool>true</bool> + </property> + </widget> + </item> + <item row="0" column="1"> + <widget class="QDial" name="dial_2"> + <property name="notchesVisible"> + <bool>true</bool> + </property> + </widget> + </item> + <item row="0" column="2"> + <widget class="QDial" name="dial_3"> + <property name="notchesVisible"> + <bool>true</bool> + </property> + </widget> + </item> + <item row="0" column="3"> + <widget class="QDial" name="dial_4"> + <property name="notchesVisible"> + <bool>true</bool> + </property> + </widget> + </item> + <item row="1" column="0"> + <widget class="QDial" name="dial_5"> + <property name="notchesVisible"> + <bool>true</bool> + </property> + </widget> + </item> + <item row="1" column="1"> + <widget class="QDial" name="dial_6"> + <property name="notchesVisible"> + <bool>true</bool> + </property> + </widget> + </item> + <item row="1" column="2"> + <widget class="QDial" name="dial_7"> + <property name="notchesVisible"> + <bool>true</bool> + </property> + </widget> + </item> + <item row="1" column="3"> + <widget class="QDial" name="dial_8"> + <property name="notchesVisible"> + <bool>true</bool> + </property> + </widget> + </item> + </layout> + </widget> + <resources/> + <connections/> +</ui> diff --git a/examples/touch/dials/main.cpp b/examples/touch/dials/main.cpp new file mode 100644 index 0000000..4c7cc1e --- /dev/null +++ b/examples/touch/dials/main.cpp @@ -0,0 +1,58 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include <QWidget> +#include <QDial> + +#include "ui_dials.h" + +int main(int argc, char **argv) +{ + QApplication app(argc, argv); + QWidget window; + Ui::Dials dialsUi; + dialsUi.setupUi(&window); + QList<QAbstractSlider *> sliders = window.findChildren<QAbstractSlider *>(); + foreach (QAbstractSlider *slider, sliders) + slider->setAttribute(Qt::WA_AcceptTouchEvents); + window.showMaximized(); + return app.exec(); +} diff --git a/examples/touch/fingerpaint/fingerpaint.pro b/examples/touch/fingerpaint/fingerpaint.pro new file mode 100644 index 0000000..f1c9d4c --- /dev/null +++ b/examples/touch/fingerpaint/fingerpaint.pro @@ -0,0 +1,11 @@ +HEADERS = mainwindow.h \ + scribblearea.h +SOURCES = main.cpp \ + mainwindow.cpp \ + scribblearea.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/touch/fingerpaint +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS fingerpaint.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/touch/fingerpaint +INSTALLS += target sources diff --git a/examples/touch/fingerpaint/main.cpp b/examples/touch/fingerpaint/main.cpp new file mode 100644 index 0000000..1d9b61d --- /dev/null +++ b/examples/touch/fingerpaint/main.cpp @@ -0,0 +1,51 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> + +#include "mainwindow.h" + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + MainWindow window; + window.showMaximized(); + return app.exec(); +} diff --git a/examples/touch/fingerpaint/mainwindow.cpp b/examples/touch/fingerpaint/mainwindow.cpp new file mode 100644 index 0000000..ec42da3 --- /dev/null +++ b/examples/touch/fingerpaint/mainwindow.cpp @@ -0,0 +1,217 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "mainwindow.h" +#include "scribblearea.h" + +//! [0] +MainWindow::MainWindow() +{ + scribbleArea = new ScribbleArea; + setCentralWidget(scribbleArea); + + createActions(); + createMenus(); + + setWindowTitle(tr("Finger Paint")); + resize(500, 500); +} +//! [0] + +//! [1] +void MainWindow::closeEvent(QCloseEvent *event) +//! [1] //! [2] +{ + if (maybeSave()) { + event->accept(); + } else { + event->ignore(); + } +} +//! [2] + +//! [3] +void MainWindow::open() +//! [3] //! [4] +{ + if (maybeSave()) { + QString fileName = QFileDialog::getOpenFileName(this, + tr("Open File"), QDir::currentPath()); + if (!fileName.isEmpty()) + scribbleArea->openImage(fileName); + } +} +//! [4] + +//! [5] +void MainWindow::save() +//! [5] //! [6] +{ + QAction *action = qobject_cast<QAction *>(sender()); + QByteArray fileFormat = action->data().toByteArray(); + saveFile(fileFormat); +} +//! [6] + +//! [11] +void MainWindow::about() +//! [11] //! [12] +{ + QMessageBox::about(this, tr("About Scribble"), + tr("<p>The <b>Scribble</b> example shows how to use QMainWindow as the " + "base widget for an application, and how to reimplement some of " + "QWidget's event handlers to receive the events generated for " + "the application's widgets:</p><p> We reimplement the mouse event " + "handlers to facilitate drawing, the paint event handler to " + "update the application and the resize event handler to optimize " + "the application's appearance. In addition we reimplement the " + "close event handler to intercept the close events before " + "terminating the application.</p><p> The example also demonstrates " + "how to use QPainter to draw an image in real time, as well as " + "to repaint widgets.</p>")); +} +//! [12] + +//! [13] +void MainWindow::createActions() +//! [13] //! [14] +{ + openAct = new QAction(tr("&Open..."), this); + openAct->setShortcut(tr("Ctrl+O")); + connect(openAct, SIGNAL(triggered()), this, SLOT(open())); + + foreach (QByteArray format, QImageWriter::supportedImageFormats()) { + QString text = tr("%1...").arg(QString(format).toUpper()); + + QAction *action = new QAction(text, this); + action->setData(format); + connect(action, SIGNAL(triggered()), this, SLOT(save())); + saveAsActs.append(action); + } + + printAct = new QAction(tr("&Print..."), this); + connect(printAct, SIGNAL(triggered()), scribbleArea, SLOT(print())); + + exitAct = new QAction(tr("E&xit"), this); + exitAct->setShortcut(tr("Ctrl+Q")); + connect(exitAct, SIGNAL(triggered()), this, SLOT(close())); + + clearScreenAct = new QAction(tr("&Clear Screen"), this); + clearScreenAct->setShortcut(tr("Ctrl+L")); + connect(clearScreenAct, SIGNAL(triggered()), + scribbleArea, SLOT(clearImage())); + + aboutAct = new QAction(tr("&About"), this); + connect(aboutAct, SIGNAL(triggered()), this, SLOT(about())); + + aboutQtAct = new QAction(tr("About &Qt"), this); + connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt())); +} +//! [14] + +//! [15] +void MainWindow::createMenus() +//! [15] //! [16] +{ + saveAsMenu = new QMenu(tr("&Save As"), this); + foreach (QAction *action, saveAsActs) + saveAsMenu->addAction(action); + + fileMenu = new QMenu(tr("&File"), this); + fileMenu->addAction(openAct); + fileMenu->addMenu(saveAsMenu); + fileMenu->addAction(printAct); + fileMenu->addSeparator(); + fileMenu->addAction(exitAct); + + optionMenu = new QMenu(tr("&Options"), this); + optionMenu->addAction(clearScreenAct); + + helpMenu = new QMenu(tr("&Help"), this); + helpMenu->addAction(aboutAct); + helpMenu->addAction(aboutQtAct); + + menuBar()->addMenu(fileMenu); + menuBar()->addMenu(optionMenu); + menuBar()->addMenu(helpMenu); +} +//! [16] + +//! [17] +bool MainWindow::maybeSave() +//! [17] //! [18] +{ + if (scribbleArea->isModified()) { + QMessageBox::StandardButton ret; + ret = QMessageBox::warning(this, tr("Scribble"), + tr("The image has been modified.\n" + "Do you want to save your changes?"), + QMessageBox::Save | QMessageBox::Discard + | QMessageBox::Cancel); + if (ret == QMessageBox::Save) { + return saveFile("png"); + } else if (ret == QMessageBox::Cancel) { + return false; + } + } + return true; +} +//! [18] + +//! [19] +bool MainWindow::saveFile(const QByteArray &fileFormat) +//! [19] //! [20] +{ + QString initialPath = QDir::currentPath() + "/untitled." + fileFormat; + + QString fileName = QFileDialog::getSaveFileName(this, tr("Save As"), + initialPath, + tr("%1 Files (*.%2);;All Files (*)") + .arg(QString(fileFormat.toUpper())) + .arg(QString(fileFormat))); + if (fileName.isEmpty()) { + return false; + } else { + return scribbleArea->saveImage(fileName, fileFormat); + } +} +//! [20] diff --git a/examples/touch/fingerpaint/mainwindow.h b/examples/touch/fingerpaint/mainwindow.h new file mode 100644 index 0000000..714748e --- /dev/null +++ b/examples/touch/fingerpaint/mainwindow.h @@ -0,0 +1,88 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MAINWINDOW_H +#define MAINWINDOW_H + +#include <QList> +#include <QMainWindow> + +class ScribbleArea; + +//! [0] +class MainWindow : public QMainWindow +{ + Q_OBJECT + +public: + MainWindow(); + +protected: + void closeEvent(QCloseEvent *event); + +private slots: + void open(); + void save(); + void about(); + +private: + void createActions(); + void createMenus(); + bool maybeSave(); + bool saveFile(const QByteArray &fileFormat); + + ScribbleArea *scribbleArea; + + QMenu *saveAsMenu; + QMenu *fileMenu; + QMenu *optionMenu; + QMenu *helpMenu; + + QAction *openAct; + QList<QAction *> saveAsActs; + QAction *exitAct; + QAction *printAct; + QAction *clearScreenAct; + QAction *aboutAct; + QAction *aboutQtAct; +}; +//! [0] + +#endif diff --git a/examples/touch/fingerpaint/scribblearea.cpp b/examples/touch/fingerpaint/scribblearea.cpp new file mode 100644 index 0000000..f16c334 --- /dev/null +++ b/examples/touch/fingerpaint/scribblearea.cpp @@ -0,0 +1,211 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "scribblearea.h" + +//! [0] +ScribbleArea::ScribbleArea(QWidget *parent) + : QWidget(parent) +{ + setAttribute(Qt::WA_AcceptTouchEvents); + setAttribute(Qt::WA_StaticContents); + modified = false; + + myPenColors + << QColor("green") + << QColor("purple") + << QColor("red") + << QColor("blue") + << QColor("yellow") + + << QColor("pink") + << QColor("orange") + << QColor("brown") + << QColor("grey") + << QColor("black"); +} +//! [0] + +//! [1] +bool ScribbleArea::openImage(const QString &fileName) +//! [1] //! [2] +{ + QImage loadedImage; + if (!loadedImage.load(fileName)) + return false; + + QSize newSize = loadedImage.size().expandedTo(size()); + resizeImage(&loadedImage, newSize); + image = loadedImage; + modified = false; + update(); + return true; +} +//! [2] + +//! [3] +bool ScribbleArea::saveImage(const QString &fileName, const char *fileFormat) +//! [3] //! [4] +{ + QImage visibleImage = image; + resizeImage(&visibleImage, size()); + + if (visibleImage.save(fileName, fileFormat)) { + modified = false; + return true; + } else { + return false; + } +} +//! [4] + +//! [9] +void ScribbleArea::clearImage() +//! [9] //! [10] +{ + image.fill(qRgb(255, 255, 255)); + modified = true; + update(); +} +//! [10] + +//! [12] //! [13] +void ScribbleArea::paintEvent(QPaintEvent *event) +//! [13] //! [14] +{ + QPainter painter(this); + const QRect rect = event->rect(); + painter.drawImage(rect.topLeft(), image, rect); +} +//! [14] + +//! [15] +void ScribbleArea::resizeEvent(QResizeEvent *event) +//! [15] //! [16] +{ + if (width() > image.width() || height() > image.height()) { + int newWidth = qMax(width() + 128, image.width()); + int newHeight = qMax(height() + 128, image.height()); + resizeImage(&image, QSize(newWidth, newHeight)); + update(); + } + QWidget::resizeEvent(event); +} +//! [16] + +//! [19] +void ScribbleArea::resizeImage(QImage *image, const QSize &newSize) +//! [19] //! [20] +{ + if (image->size() == newSize) + return; + + QImage newImage(newSize, QImage::Format_RGB32); + newImage.fill(qRgb(255, 255, 255)); + QPainter painter(&newImage); + painter.drawImage(QPoint(0, 0), *image); + *image = newImage; +} +//! [20] + +//! [21] +void ScribbleArea::print() +{ +#ifndef QT_NO_PRINTER + QPrinter printer(QPrinter::HighResolution); + + QPrintDialog *printDialog = new QPrintDialog(&printer, this); +//! [21] //! [22] + if (printDialog->exec() == QDialog::Accepted) { + QPainter painter(&printer); + QRect rect = painter.viewport(); + QSize size = image.size(); + size.scale(rect.size(), Qt::KeepAspectRatio); + painter.setViewport(rect.x(), rect.y(), size.width(), size.height()); + painter.setWindow(image.rect()); + painter.drawImage(0, 0, image); + } +#endif // QT_NO_PRINTER +} +//! [22] + +bool ScribbleArea::event(QEvent *event) +{ + switch (event->type()) { + case QEvent::TouchBegin: + case QEvent::TouchUpdate: + case QEvent::TouchEnd: + { + QList<QTouchEvent::TouchPoint> touchPoints = static_cast<QTouchEvent *>(event)->touchPoints(); + foreach (const QTouchEvent::TouchPoint &touchPoint, touchPoints) { + switch (touchPoint.state()) { + case Qt::TouchPointStationary: + // don't do anything if this touch point hasn't moved + continue; + default: + { + QRectF rect = touchPoint.rect(); + if (rect.isEmpty()) { + qreal diameter = qreal(50) * touchPoint.pressure(); + rect.setSize(QSizeF(diameter, diameter)); + } + + QPainter painter(&image); + painter.setPen(Qt::NoPen); + painter.setBrush(myPenColors.at(touchPoint.id() % myPenColors.count())); + painter.drawEllipse(rect); + painter.end(); + + modified = true; + int rad = 2; + update(rect.toRect().adjusted(-rad,-rad, +rad, +rad)); + } + break; + } + } + break; + } + default: + return QWidget::event(event); + } + return true; +} diff --git a/examples/touch/fingerpaint/scribblearea.h b/examples/touch/fingerpaint/scribblearea.h new file mode 100644 index 0000000..2e4fbda --- /dev/null +++ b/examples/touch/fingerpaint/scribblearea.h @@ -0,0 +1,80 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef SCRIBBLEAREA_H +#define SCRIBBLEAREA_H + +#include <QColor> +#include <QImage> +#include <QPoint> +#include <QWidget> + +//! [0] +class ScribbleArea : public QWidget +{ + Q_OBJECT + +public: + ScribbleArea(QWidget *parent = 0); + + bool openImage(const QString &fileName); + bool saveImage(const QString &fileName, const char *fileFormat); + + bool isModified() const { return modified; } + +public slots: + void clearImage(); + void print(); + +protected: + void paintEvent(QPaintEvent *event); + void resizeEvent(QResizeEvent *event); + bool event(QEvent *event); + +private: + void resizeImage(QImage *image, const QSize &newSize); + + bool modified; + QList<QColor> myPenColors; + QImage image; +}; +//! [0] + +#endif diff --git a/examples/touch/knobs/knob.cpp b/examples/touch/knobs/knob.cpp new file mode 100644 index 0000000..6ddd9b3 --- /dev/null +++ b/examples/touch/knobs/knob.cpp @@ -0,0 +1,88 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "knob.h" + +#include <QBrush> +#include <QTouchEvent> + +Knob::Knob() + : QGraphicsEllipseItem(-50, -50, 100, 100) +{ + setAcceptTouchEvents(true); + setBrush(Qt::lightGray); + + QGraphicsEllipseItem *leftItem = new QGraphicsEllipseItem(0, 0, 20, 20, this); + leftItem->setPos(-40, -10); + leftItem->setBrush(Qt::darkGreen); + + QGraphicsEllipseItem *rightItem = new QGraphicsEllipseItem(0, 0, 20, 20, this); + rightItem->setPos(20, -10); + rightItem->setBrush(Qt::darkRed); +} + +bool Knob::sceneEvent(QEvent *event) +{ + switch (event->type()) { + case QEvent::TouchBegin: + case QEvent::TouchUpdate: + case QEvent::TouchEnd: + { + QTouchEvent *touchEvent = static_cast<QTouchEvent *>(event); + + if (touchEvent->touchPoints().count() == 2) { + const QTouchEvent::TouchPoint &touchPoint1 = touchEvent->touchPoints().first(); + const QTouchEvent::TouchPoint &touchPoint2 = touchEvent->touchPoints().last(); + + QLineF line1(touchPoint1.lastScenePos(), touchPoint2.lastScenePos()); + QLineF line2(touchPoint1.scenePos(), touchPoint2.scenePos()); + + rotate(line2.angleTo(line1)); + } + + break; + } + + default: + return QGraphicsItem::sceneEvent(event); + } + + return true; +} diff --git a/examples/touch/knobs/knob.h b/examples/touch/knobs/knob.h new file mode 100644 index 0000000..d4e8730 --- /dev/null +++ b/examples/touch/knobs/knob.h @@ -0,0 +1,54 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef KNOB_H +#define KNOB_H + +#include <QGraphicsItem> + +class Knob : public QGraphicsEllipseItem +{ +public: + Knob(); + + bool sceneEvent(QEvent *event); +}; + +#endif // KNOB_H diff --git a/examples/touch/knobs/knobs.pro b/examples/touch/knobs/knobs.pro new file mode 100644 index 0000000..ef01c9a --- /dev/null +++ b/examples/touch/knobs/knobs.pro @@ -0,0 +1,8 @@ +HEADERS = knob.h +SOURCES = main.cpp knob.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/touch/knobs +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS knobs.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/touch/knobs +INSTALLS += target sources diff --git a/examples/touch/knobs/main.cpp b/examples/touch/knobs/main.cpp new file mode 100644 index 0000000..0866f78 --- /dev/null +++ b/examples/touch/knobs/main.cpp @@ -0,0 +1,64 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include <QGraphicsView> + +#include "knob.h" + +int main(int argc, char **argv) +{ + QApplication app(argc, argv); + + QGraphicsScene scene; + QGraphicsView view(&scene); + + Knob *knob1 = new Knob; + knob1->setPos(-110, 0); + Knob *knob2 = new Knob; + + scene.addItem(knob1); + scene.addItem(knob2); + + view.showMaximized(); + view.fitInView(scene.sceneRect().adjusted(-20, -20, 20, 20), Qt::KeepAspectRatio); + + return app.exec(); +} diff --git a/examples/touch/pinchzoom/graphicsview.cpp b/examples/touch/pinchzoom/graphicsview.cpp new file mode 100644 index 0000000..041e494 --- /dev/null +++ b/examples/touch/pinchzoom/graphicsview.cpp @@ -0,0 +1,85 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "graphicsview.h" + +#include <QScrollBar> +#include <QTouchEvent> + +GraphicsView::GraphicsView(QGraphicsScene *scene, QWidget *parent) + : QGraphicsView(scene, parent), totalScaleFactor(1) +{ + viewport()->setAttribute(Qt::WA_AcceptTouchEvents); + setDragMode(ScrollHandDrag); +} + +bool GraphicsView::viewportEvent(QEvent *event) +{ + switch (event->type()) { + case QEvent::TouchBegin: + case QEvent::TouchUpdate: + case QEvent::TouchEnd: + { + QTouchEvent *touchEvent = static_cast<QTouchEvent *>(event); + QList<QTouchEvent::TouchPoint> touchPoints = touchEvent->touchPoints(); + if (touchPoints.count() == 2) { + // determine scale factor + const QTouchEvent::TouchPoint &touchPoint0 = touchPoints.first(); + const QTouchEvent::TouchPoint &touchPoint1 = touchPoints.last(); + qreal currentScaleFactor = + QLineF(touchPoint0.pos(), touchPoint1.pos()).length() + / QLineF(touchPoint0.startPos(), touchPoint1.startPos()).length(); + if (touchEvent->touchPointStates() & Qt::TouchPointReleased) { + // if one of the fingers is released, remember the current scale + // factor so that adding another finger later will continue zooming + // by adding new scale factor to the existing remembered value. + totalScaleFactor *= currentScaleFactor; + currentScaleFactor = 1; + } + setTransform(QTransform().scale(totalScaleFactor * currentScaleFactor, + totalScaleFactor * currentScaleFactor)); + } + return true; + } + default: + break; + } + return QGraphicsView::viewportEvent(event); +} diff --git a/examples/touch/pinchzoom/graphicsview.h b/examples/touch/pinchzoom/graphicsview.h new file mode 100644 index 0000000..c762786 --- /dev/null +++ b/examples/touch/pinchzoom/graphicsview.h @@ -0,0 +1,55 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#pragma once +#include <QGraphicsView> + +class GraphicsView : public QGraphicsView +{ + Q_OBJECT + +public: + GraphicsView(QGraphicsScene *scene = 0, QWidget *parent = 0); + + bool viewportEvent(QEvent *event); + +private: + qreal totalScaleFactor; +}; diff --git a/examples/touch/pinchzoom/main.cpp b/examples/touch/pinchzoom/main.cpp new file mode 100644 index 0000000..8abc993 --- /dev/null +++ b/examples/touch/pinchzoom/main.cpp @@ -0,0 +1,86 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "graphicsview.h" +#include "mouse.h" + +#include <QtGui> + +#include <math.h> + +static const int MouseCount = 7; + +//! [0] +int main(int argc, char **argv) +{ + QApplication app(argc, argv); + qsrand(QTime(0,0,0).secsTo(QTime::currentTime())); +//! [0] + +//! [1] + QGraphicsScene scene; + scene.setSceneRect(-300, -300, 600, 600); +//! [1] //! [2] + scene.setItemIndexMethod(QGraphicsScene::NoIndex); +//! [2] + +//! [3] + for (int i = 0; i < MouseCount; ++i) { + Mouse *mouse = new Mouse; + mouse->setPos(::sin((i * 6.28) / MouseCount) * 200, + ::cos((i * 6.28) / MouseCount) * 200); + scene.addItem(mouse); + } +//! [3] + +//! [4] + GraphicsView view(&scene); + view.setRenderHint(QPainter::Antialiasing); + view.setBackgroundBrush(QPixmap(":/images/cheese.jpg")); +//! [4] //! [5] + view.setCacheMode(QGraphicsView::CacheBackground); + view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate); +//! [5] //! [6] + view.setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "Colliding Mice")); + view.showMaximized(); + + return app.exec(); +} +//! [6] diff --git a/examples/touch/pinchzoom/mice.qrc b/examples/touch/pinchzoom/mice.qrc new file mode 100644 index 0000000..accdb4d --- /dev/null +++ b/examples/touch/pinchzoom/mice.qrc @@ -0,0 +1,5 @@ +<RCC> + <qresource prefix="/" > + <file>images/cheese.jpg</file> + </qresource> +</RCC> diff --git a/examples/touch/pinchzoom/mouse.cpp b/examples/touch/pinchzoom/mouse.cpp new file mode 100644 index 0000000..82617fe --- /dev/null +++ b/examples/touch/pinchzoom/mouse.cpp @@ -0,0 +1,199 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "mouse.h" + +#include <QGraphicsScene> +#include <QPainter> +#include <QStyleOption> + +#include <math.h> + +static const double Pi = 3.14159265358979323846264338327950288419717; +static double TwoPi = 2.0 * Pi; + +static qreal normalizeAngle(qreal angle) +{ + while (angle < 0) + angle += TwoPi; + while (angle > TwoPi) + angle -= TwoPi; + return angle; +} + +//! [0] +Mouse::Mouse() + : angle(0), speed(0), mouseEyeDirection(0), + color(qrand() % 256, qrand() % 256, qrand() % 256) +{ + rotate(qrand() % (360 * 16)); + startTimer(1000 / 33); +} +//! [0] + +//! [1] +QRectF Mouse::boundingRect() const +{ + qreal adjust = 0.5; + return QRectF(-18 - adjust, -22 - adjust, + 36 + adjust, 60 + adjust); +} +//! [1] + +//! [2] +QPainterPath Mouse::shape() const +{ + QPainterPath path; + path.addRect(-10, -20, 20, 40); + return path; +} +//! [2] + +//! [3] +void Mouse::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) +{ + // Body + painter->setBrush(color); + painter->drawEllipse(-10, -20, 20, 40); + + // Eyes + painter->setBrush(Qt::white); + painter->drawEllipse(-10, -17, 8, 8); + painter->drawEllipse(2, -17, 8, 8); + + // Nose + painter->setBrush(Qt::black); + painter->drawEllipse(QRectF(-2, -22, 4, 4)); + + // Pupils + painter->drawEllipse(QRectF(-8.0 + mouseEyeDirection, -17, 4, 4)); + painter->drawEllipse(QRectF(4.0 + mouseEyeDirection, -17, 4, 4)); + + // Ears + painter->setBrush(scene()->collidingItems(this).isEmpty() ? Qt::darkYellow : Qt::red); + painter->drawEllipse(-17, -12, 16, 16); + painter->drawEllipse(1, -12, 16, 16); + + // Tail + QPainterPath path(QPointF(0, 20)); + path.cubicTo(-5, 22, -5, 22, 0, 25); + path.cubicTo(5, 27, 5, 32, 0, 30); + path.cubicTo(-5, 32, -5, 42, 0, 35); + painter->setBrush(Qt::NoBrush); + painter->drawPath(path); +} +//! [3] + +//! [4] +void Mouse::timerEvent(QTimerEvent *) +{ +//! [4] + // Don't move too far away +//! [5] + QLineF lineToCenter(QPointF(0, 0), mapFromScene(0, 0)); + if (lineToCenter.length() > 150) { + qreal angleToCenter = ::acos(lineToCenter.dx() / lineToCenter.length()); + if (lineToCenter.dy() < 0) + angleToCenter = TwoPi - angleToCenter; + angleToCenter = normalizeAngle((Pi - angleToCenter) + Pi / 2); + + if (angleToCenter < Pi && angleToCenter > Pi / 4) { + // Rotate left + angle += (angle < -Pi / 2) ? 0.25 : -0.25; + } else if (angleToCenter >= Pi && angleToCenter < (Pi + Pi / 2 + Pi / 4)) { + // Rotate right + angle += (angle < Pi / 2) ? 0.25 : -0.25; + } + } else if (::sin(angle) < 0) { + angle += 0.25; + } else if (::sin(angle) > 0) { + angle -= 0.25; +//! [5] //! [6] + } +//! [6] + + // Try not to crash with any other mice +//! [7] + QList<QGraphicsItem *> dangerMice = scene()->items(QPolygonF() + << mapToScene(0, 0) + << mapToScene(-30, -50) + << mapToScene(30, -50)); + foreach (QGraphicsItem *item, dangerMice) { + if (item == this) + continue; + + QLineF lineToMouse(QPointF(0, 0), mapFromItem(item, 0, 0)); + qreal angleToMouse = ::acos(lineToMouse.dx() / lineToMouse.length()); + if (lineToMouse.dy() < 0) + angleToMouse = TwoPi - angleToMouse; + angleToMouse = normalizeAngle((Pi - angleToMouse) + Pi / 2); + + if (angleToMouse >= 0 && angleToMouse < Pi / 2) { + // Rotate right + angle += 0.5; + } else if (angleToMouse <= TwoPi && angleToMouse > (TwoPi - Pi / 2)) { + // Rotate left + angle -= 0.5; +//! [7] //! [8] + } +//! [8] //! [9] + } +//! [9] + + // Add some random movement +//! [10] + if (dangerMice.size() > 1 && (qrand() % 10) == 0) { + if (qrand() % 1) + angle += (qrand() % 100) / 500.0; + else + angle -= (qrand() % 100) / 500.0; + } +//! [10] + +//! [11] + speed += (-50 + qrand() % 100) / 100.0; + + qreal dx = ::sin(angle) * 10; + mouseEyeDirection = (qAbs(dx / 5) < 1) ? 0 : dx / 5; + + rotate(dx); + setPos(mapToParent(0, -(3 + sin(speed) * 3))); +} +//! [11] diff --git a/examples/touch/pinchzoom/mouse.h b/examples/touch/pinchzoom/mouse.h new file mode 100644 index 0000000..241f8ab --- /dev/null +++ b/examples/touch/pinchzoom/mouse.h @@ -0,0 +1,70 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MOUSE_H +#define MOUSE_H + +#include <QGraphicsObject> + +//! [0] +class Mouse : public QGraphicsObject +{ + Q_OBJECT + +public: + Mouse(); + + QRectF boundingRect() const; + QPainterPath shape() const; + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, + QWidget *widget); + +protected: + void timerEvent(QTimerEvent *event); + +private: + qreal angle; + qreal speed; + qreal mouseEyeDirection; + QColor color; +}; +//! [0] + +#endif diff --git a/examples/touch/pinchzoom/pinchzoom.pro b/examples/touch/pinchzoom/pinchzoom.pro new file mode 100644 index 0000000..804536b --- /dev/null +++ b/examples/touch/pinchzoom/pinchzoom.pro @@ -0,0 +1,16 @@ +HEADERS += \ + mouse.h \ + graphicsview.h +SOURCES += \ + main.cpp \ + mouse.cpp \ + graphicsview.cpp + +RESOURCES += \ + mice.qrc + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/touch/pinchzoom +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS pinchzoom.pro images +sources.path = $$[QT_INSTALL_EXAMPLES]/touch/pinchzoom +INSTALLS += target sources diff --git a/examples/touch/touch.pro b/examples/touch/touch.pro new file mode 100644 index 0000000..d5983eb --- /dev/null +++ b/examples/touch/touch.pro @@ -0,0 +1,2 @@ +TEMPLATE = subdirs +SUBDIRS = pinchzoom fingerpaint knobs dials |
