diff options
Diffstat (limited to 'examples/widgets/touch/fingerpaint')
| -rw-r--r-- | examples/widgets/touch/fingerpaint/.prev_CMakeLists.txt | 47 | ||||
| -rw-r--r-- | examples/widgets/touch/fingerpaint/CMakeLists.txt | 53 | ||||
| -rw-r--r-- | examples/widgets/touch/fingerpaint/doc/src/fingerpaint.qdoc | 42 | ||||
| -rw-r--r-- | examples/widgets/touch/fingerpaint/fingerpaint.pro | 13 | ||||
| -rw-r--r-- | examples/widgets/touch/fingerpaint/main.cpp | 61 | ||||
| -rw-r--r-- | examples/widgets/touch/fingerpaint/mainwindow.cpp | 227 | ||||
| -rw-r--r-- | examples/widgets/touch/fingerpaint/mainwindow.h | 98 | ||||
| -rw-r--r-- | examples/widgets/touch/fingerpaint/scribblearea.cpp | 237 | ||||
| -rw-r--r-- | examples/widgets/touch/fingerpaint/scribblearea.h | 90 |
9 files changed, 0 insertions, 868 deletions
diff --git a/examples/widgets/touch/fingerpaint/.prev_CMakeLists.txt b/examples/widgets/touch/fingerpaint/.prev_CMakeLists.txt deleted file mode 100644 index 3077bf5bc6..0000000000 --- a/examples/widgets/touch/fingerpaint/.prev_CMakeLists.txt +++ /dev/null @@ -1,47 +0,0 @@ -# Generated from fingerpaint.pro. - -cmake_minimum_required(VERSION 3.14) -project(fingerpaint LANGUAGES CXX) - -set(CMAKE_INCLUDE_CURRENT_DIR ON) - -set(CMAKE_AUTOMOC ON) -set(CMAKE_AUTORCC ON) -set(CMAKE_AUTOUIC ON) - -if(NOT DEFINED INSTALL_EXAMPLESDIR) - set(INSTALL_EXAMPLESDIR "examples") -endif() - -set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/widgets/touch/fingerpaint") - -find_package(Qt6 COMPONENTS Core) -find_package(Qt6 COMPONENTS Gui) -find_package(Qt6 COMPONENTS Widgets) - -qt_add_executable(fingerpaint - main.cpp - mainwindow.cpp mainwindow.h - scribblearea.cpp scribblearea.h -) -set_target_properties(fingerpaint PROPERTIES - WIN32_EXECUTABLE TRUE - MACOSX_BUNDLE TRUE -) -target_link_libraries(fingerpaint PUBLIC - Qt::Core - Qt::Gui - Qt::Widgets -) - -if(TARGET Qt::PrintSupport) - target_link_libraries(fingerpaint PUBLIC - Qt::PrintSupport - ) -endif() - -install(TARGETS fingerpaint - RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" - BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" - LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}" -) diff --git a/examples/widgets/touch/fingerpaint/CMakeLists.txt b/examples/widgets/touch/fingerpaint/CMakeLists.txt deleted file mode 100644 index 12e96173cf..0000000000 --- a/examples/widgets/touch/fingerpaint/CMakeLists.txt +++ /dev/null @@ -1,53 +0,0 @@ -# Generated from fingerpaint.pro. - -cmake_minimum_required(VERSION 3.16) -project(fingerpaint LANGUAGES CXX) - -set(CMAKE_INCLUDE_CURRENT_DIR ON) - -set(CMAKE_AUTOMOC ON) -set(CMAKE_AUTORCC ON) -set(CMAKE_AUTOUIC ON) - -if(NOT DEFINED INSTALL_EXAMPLESDIR) - set(INSTALL_EXAMPLESDIR "examples") -endif() - -set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/widgets/touch/fingerpaint") - -find_package(Qt6 COMPONENTS Core) -find_package(Qt6 COMPONENTS Gui) -find_package(Qt6 COMPONENTS Widgets) -find_package(Qt6 COMPONENTS PrintSupport) # special case - -qt_add_executable(fingerpaint - main.cpp - mainwindow.cpp mainwindow.h - scribblearea.cpp scribblearea.h -) -set_target_properties(fingerpaint PROPERTIES - WIN32_EXECUTABLE TRUE - MACOSX_BUNDLE TRUE -) -target_link_libraries(fingerpaint PUBLIC - Qt::Core - Qt::Gui - Qt::Widgets -) -# special case begin -if (TARGET Qt::PrintSupport) - target_link_libraries(fingerpaint PUBLIC Qt::PrintSupport) -endif() -# special case end - -if(TARGET Qt::PrintSupport) - target_link_libraries(fingerpaint PUBLIC - Qt::PrintSupport - ) -endif() - -install(TARGETS fingerpaint - RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" - BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" - LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}" -) diff --git a/examples/widgets/touch/fingerpaint/doc/src/fingerpaint.qdoc b/examples/widgets/touch/fingerpaint/doc/src/fingerpaint.qdoc deleted file mode 100644 index 6f8f636f86..0000000000 --- a/examples/widgets/touch/fingerpaint/doc/src/fingerpaint.qdoc +++ /dev/null @@ -1,42 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the documentation of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:FDL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Free Documentation License Usage -** 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. Please review the following information to ensure -** the GNU Free Documentation License version 1.3 requirements -** will be met: https://www.gnu.org/licenses/fdl-1.3.html. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -/*! - \example touch/fingerpaint - \title Finger Paint Example - \ingroup touchinputexamples - \brief Shows the use of a touchscreen to make a simple painting application. - - The Finger Paint example shows the use of a touchscreen with a custom widget - to create a simple painting application. - - \image touch-fingerpaint-example.png - - This example was specifically designed to work with a touchscreen, using - QTouchEvent instead of QMouseEvent to handle user input over the custom - widget. As a result, it is not possible to draw with the mouse cursor. -*/ diff --git a/examples/widgets/touch/fingerpaint/fingerpaint.pro b/examples/widgets/touch/fingerpaint/fingerpaint.pro deleted file mode 100644 index 6370da6607..0000000000 --- a/examples/widgets/touch/fingerpaint/fingerpaint.pro +++ /dev/null @@ -1,13 +0,0 @@ -QT += widgets -requires(qtConfig(filedialog)) -qtHaveModule(printsupport): QT += printsupport - -HEADERS = mainwindow.h \ - scribblearea.h -SOURCES = main.cpp \ - mainwindow.cpp \ - scribblearea.cpp - -# install -target.path = $$[QT_INSTALL_EXAMPLES]/widgets/touch/fingerpaint -INSTALLS += target diff --git a/examples/widgets/touch/fingerpaint/main.cpp b/examples/widgets/touch/fingerpaint/main.cpp deleted file mode 100644 index e7ab8856b7..0000000000 --- a/examples/widgets/touch/fingerpaint/main.cpp +++ /dev/null @@ -1,61 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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/widgets/touch/fingerpaint/mainwindow.cpp b/examples/widgets/touch/fingerpaint/mainwindow.cpp deleted file mode 100644 index 2f7ec38d1a..0000000000 --- a/examples/widgets/touch/fingerpaint/mainwindow.cpp +++ /dev/null @@ -1,227 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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 <QtWidgets> - -#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, &QAction::triggered, this, &MainWindow::open); - - const QList<QByteArray> imageFormats = QImageWriter::supportedImageFormats(); - for (const QByteArray &format : imageFormats) { - QString text = tr("%1...").arg(QString(format).toUpper()); - - QAction *action = new QAction(text, this); - action->setData(format); - connect(action, &QAction::triggered, this, &MainWindow::save); - saveAsActs.append(action); - } - - printAct = new QAction(tr("&Print..."), this); - connect(printAct, &QAction::triggered, scribbleArea, &ScribbleArea::print); - - exitAct = new QAction(tr("E&xit"), this); - exitAct->setShortcut(tr("Ctrl+Q")); - connect(exitAct, &QAction::triggered, this, &QWidget::close); - - clearScreenAct = new QAction(tr("&Clear Screen"), this); - clearScreenAct->setShortcut(tr("Ctrl+L")); - connect(clearScreenAct, &QAction::triggered, - scribbleArea, &ScribbleArea::clearImage); - - aboutAct = new QAction(tr("&About"), this); - connect(aboutAct, &QAction::triggered, this, &MainWindow::about); - - aboutQtAct = new QAction(tr("About &Qt"), this); - connect(aboutQtAct, &QAction::triggered, qApp, &QApplication::aboutQt); -} -//! [14] - -//! [15] -void MainWindow::createMenus() -//! [15] //! [16] -{ - saveAsMenu = new QMenu(tr("&Save As"), this); - saveAsMenu->addActions(saveAsActs); - - 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::fromLatin1(fileFormat.toUpper())) - .arg(QString::fromLatin1(fileFormat))); - if (fileName.isEmpty()) { - return false; - } else { - return scribbleArea->saveImage(fileName, fileFormat.constData()); - } -} -//! [20] diff --git a/examples/widgets/touch/fingerpaint/mainwindow.h b/examples/widgets/touch/fingerpaint/mainwindow.h deleted file mode 100644 index 47c339050e..0000000000 --- a/examples/widgets/touch/fingerpaint/mainwindow.h +++ /dev/null @@ -1,98 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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) override; - -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/widgets/touch/fingerpaint/scribblearea.cpp b/examples/widgets/touch/fingerpaint/scribblearea.cpp deleted file mode 100644 index 2e6e532afb..0000000000 --- a/examples/widgets/touch/fingerpaint/scribblearea.cpp +++ /dev/null @@ -1,237 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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 <QtWidgets> -#if defined(QT_PRINTSUPPORT_LIB) -#include <QtPrintSupport/qtprintsupportglobal.h> -#if QT_CONFIG(printdialog) -#include <QPrinter> -#include <QPrintDialog> -#endif -#endif - -#include "scribblearea.h" - -static const qreal MinimumDiameter = 3.0; -static const qreal MaximumDiameter = 50.0; - -//! [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() -{ -#if defined(QT_PRINTSUPPORT_LIB) && QT_CONFIG(printdialog) - QPrinter printer(QPrinter::HighResolution); - - QPrintDialog printDialog(&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_CONFIG(printdialog) -} -//! [22] - -bool ScribbleArea::event(QEvent *event) -{ - switch (event->type()) { - case QEvent::TouchBegin: - case QEvent::TouchUpdate: - case QEvent::TouchEnd: - { - const QTouchEvent *touch = static_cast<QTouchEvent *>(event); - const auto touchPoints = static_cast<QTouchEvent *>(event)->points(); - for (const QTouchEvent::TouchPoint &touchPoint : touchPoints) { - switch (touchPoint.state()) { - case QEventPoint::Stationary: - case QEventPoint::Released: - // don't do anything if this touch point hasn't moved or has been released - continue; - default: - { - QSizeF diams = touchPoint.ellipseDiameters(); - if (diams.isEmpty()) { - qreal diameter = MaximumDiameter; - if (touch->pointingDevice()->capabilities().testFlag(QPointingDevice::Capability::Pressure)) - diameter = MinimumDiameter + (MaximumDiameter - MinimumDiameter) * touchPoint.pressure(); - diams = QSizeF(diameter, diameter); - } - - QPainter painter(&image); - painter.setPen(Qt::NoPen); - painter.setBrush(myPenColors.at(touchPoint.id() % myPenColors.count())); - painter.drawEllipse(touchPoint.position(), diams.width() / 2, diams.height() / 2); - painter.end(); - - modified = true; - const int rad = 2; - QRectF rect(QPointF(), diams); - rect.moveCenter(touchPoint.position()); - update(rect.toRect().adjusted(-rad,-rad, +rad, +rad)); - } - break; - } - } - break; - } - default: - return QWidget::event(event); - } - return true; -} diff --git a/examples/widgets/touch/fingerpaint/scribblearea.h b/examples/widgets/touch/fingerpaint/scribblearea.h deleted file mode 100644 index fcdde53cc4..0000000000 --- a/examples/widgets/touch/fingerpaint/scribblearea.h +++ /dev/null @@ -1,90 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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 = nullptr); - - 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) override; - void resizeEvent(QResizeEvent *event) override; - bool event(QEvent *event) override; - -private: - void resizeImage(QImage *image, const QSize &newSize); - - bool modified; - QList<QColor> myPenColors; - QImage image; -}; -//! [0] - -#endif |