diff options
Diffstat (limited to 'examples/widgets/gestures')
8 files changed, 69 insertions, 309 deletions
diff --git a/examples/widgets/gestures/CMakeLists.txt b/examples/widgets/gestures/CMakeLists.txt index 34fb6d0202..0110ca90a6 100644 --- a/examples/widgets/gestures/CMakeLists.txt +++ b/examples/widgets/gestures/CMakeLists.txt @@ -1,6 +1,7 @@ -# Generated from gestures.pro. +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause -if(NOT TARGET Qt::Widgets) +if(NOT TARGET Qt6::Widgets) return() endif() qt_internal_add_example(imagegestures) diff --git a/examples/widgets/gestures/imagegestures/CMakeLists.txt b/examples/widgets/gestures/imagegestures/CMakeLists.txt index 17b7a61103..1e173dc63f 100644 --- a/examples/widgets/gestures/imagegestures/CMakeLists.txt +++ b/examples/widgets/gestures/imagegestures/CMakeLists.txt @@ -1,41 +1,39 @@ -# Generated from imagegestures.pro. +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause cmake_minimum_required(VERSION 3.16) project(imagegestures LANGUAGES CXX) -set(CMAKE_INCLUDE_CURRENT_DIR ON) +find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets) -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 "${INSTALL_EXAMPLESDIR}/widgets/gestures/imagegestures") - -find_package(Qt6 COMPONENTS Core) -find_package(Qt6 COMPONENTS Gui) -find_package(Qt6 COMPONENTS Widgets) +qt_standard_project_setup() qt_add_executable(imagegestures imagewidget.cpp imagewidget.h main.cpp mainwidget.cpp mainwidget.h ) + set_target_properties(imagegestures PROPERTIES WIN32_EXECUTABLE TRUE MACOSX_BUNDLE TRUE ) -target_link_libraries(imagegestures PUBLIC - Qt::Core - Qt::Gui - Qt::Widgets + +target_link_libraries(imagegestures PRIVATE + Qt6::Core + Qt6::Gui + Qt6::Widgets ) install(TARGETS imagegestures - RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" - BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" - LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}" + BUNDLE DESTINATION . + RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} + LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} +) + +qt_generate_deploy_app_script( + TARGET imagegestures + OUTPUT_SCRIPT deploy_script + NO_UNSUPPORTED_PLATFORM_ERROR ) +install(SCRIPT ${deploy_script}) diff --git a/examples/widgets/gestures/imagegestures/doc/src/imagegestures.qdoc b/examples/widgets/gestures/imagegestures/doc/src/imagegestures.qdoc index 0ab578f55c..46053566ab 100644 --- a/examples/widgets/gestures/imagegestures/doc/src/imagegestures.qdoc +++ b/examples/widgets/gestures/imagegestures/doc/src/imagegestures.qdoc @@ -1,39 +1,16 @@ -/**************************************************************************** -** -** 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. -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only /*! \example gestures/imagegestures \title Image Gestures Example + \examplecategory {User Interface Components} \brief Demonstrates the use of simple gestures in a widget. This example shows how to enable gestures for a widget and use gesture input to perform actions. - \image imagegestures-example.jpg + \image imagegestures-example.png We use two classes to create the user interface for the application: \c MainWidget and \c ImageWidget. The \c MainWidget class is simply used as a container for the diff --git a/examples/widgets/gestures/imagegestures/imagewidget.cpp b/examples/widgets/gestures/imagegestures/imagewidget.cpp index 072ec2b216..189281cc11 100644 --- a/examples/widgets/gestures/imagegestures/imagewidget.cpp +++ b/examples/widgets/gestures/imagegestures/imagewidget.cpp @@ -1,52 +1,5 @@ -/**************************************************************************** -** -** 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include "imagewidget.h" @@ -88,6 +41,12 @@ void ImageWidget::paintEvent(QPaintEvent*) { QPainter p(this); + if (files.isEmpty() && !path.isEmpty()) { + p.drawText(rect(), Qt::AlignCenter|Qt::TextWordWrap, + tr("No supported image formats found")); + return; + } + const qreal iw = currentImage.width(); const qreal ih = currentImage.height(); const qreal wh = height(); @@ -191,20 +150,32 @@ void ImageWidget::resizeEvent(QResizeEvent*) update(); } -void ImageWidget::openDirectory(const QString &path) +void ImageWidget::openDirectory(const QString &url) { - this->path = path; + path = url; QDir dir(path); - const QStringList nameFilters{"*.jpg", "*.png"}; - files = dir.entryList(nameFilters, QDir::Files|QDir::Readable, QDir::Name); + + QStringList nameFilters; + const QList<QByteArray> supportedFormats = QImageReader::supportedImageFormats(); + for (const QByteArray &format : supportedFormats) + nameFilters.append(QLatin1String("*.") + QString::fromLatin1(format)); + files = dir.entryInfoList(nameFilters, QDir::Files|QDir::Readable, QDir::Name); position = 0; goToImage(0); update(); } -QImage ImageWidget::loadImage(const QString &fileName) const +/* + With Android's content scheme paths, it might not be possible to simply + append a file name to the chosen directory path to be able to open the image, + because usually paths are returned by an Android file provider and handling those + paths manually is not guaranteed to work. For that reason, it's better to keep + around QFileInfo objects and use absoluteFilePath(). +*/ +QImage ImageWidget::loadImage(const QFileInfo &fileInfo) const { + const QString fileName = fileInfo.absoluteFilePath(); QImageReader reader(fileName); reader.setAutoTransform(true); qCDebug(lcExample) << "loading" << QDir::toNativeSeparators(fileName) << position << '/' << files.size(); @@ -234,7 +205,7 @@ void ImageWidget::goNextImage() prevImage = currentImage; currentImage = nextImage; if (position+1 < files.size()) - nextImage = loadImage(path + QLatin1Char('/') + files.at(position+1)); + nextImage = loadImage(files.at(position + 1)); else nextImage = QImage(); } @@ -251,7 +222,7 @@ void ImageWidget::goPrevImage() nextImage = currentImage; currentImage = prevImage; if (position > 0) - prevImage = loadImage(path + QLatin1Char('/') + files.at(position-1)); + prevImage = loadImage(files.at(position - 1)); else prevImage = QImage(); } @@ -281,12 +252,12 @@ void ImageWidget::goToImage(int index) position = index; if (index > 0) - prevImage = loadImage(path + QLatin1Char('/') + files.at(position-1)); + prevImage = loadImage(files.at(position - 1)); else prevImage = QImage(); - currentImage = loadImage(path + QLatin1Char('/') + files.at(position)); + currentImage = loadImage(files.at(position)); if (position+1 < files.size()) - nextImage = loadImage(path + QLatin1Char('/') + files.at(position+1)); + nextImage = loadImage(files.at(position + 1)); else nextImage = QImage(); update(); diff --git a/examples/widgets/gestures/imagegestures/imagewidget.h b/examples/widgets/gestures/imagegestures/imagewidget.h index f9b5d989e9..1f4010baac 100644 --- a/examples/widgets/gestures/imagegestures/imagewidget.h +++ b/examples/widgets/gestures/imagegestures/imagewidget.h @@ -1,56 +1,10 @@ -/**************************************************************************** -** -** 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #ifndef IMAGEWIDGET_H #define IMAGEWIDGET_H +#include <QFileInfo> #include <QImage> #include <QLoggingCategory> #include <QWidget> @@ -71,7 +25,7 @@ class ImageWidget : public QWidget public: ImageWidget(QWidget *parent = nullptr); - void openDirectory(const QString &path); + void openDirectory(const QString &url); void grabGestures(const QList<Qt::GestureType> &gestures); protected: @@ -87,14 +41,14 @@ private: void swipeTriggered(QSwipeGesture*); //! [class definition begin] - QImage loadImage(const QString &fileName) const; + QImage loadImage(const QFileInfo &fileInfo) const; void loadImage(); void goNextImage(); void goPrevImage(); void goToImage(int index); QString path; - QStringList files; + QFileInfoList files; int position; QImage prevImage, nextImage; diff --git a/examples/widgets/gestures/imagegestures/main.cpp b/examples/widgets/gestures/imagegestures/main.cpp index ecd7462bd3..434b1efb5a 100644 --- a/examples/widgets/gestures/imagegestures/main.cpp +++ b/examples/widgets/gestures/imagegestures/main.cpp @@ -1,52 +1,5 @@ -/**************************************************************************** -** -** 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include <QtWidgets> diff --git a/examples/widgets/gestures/imagegestures/mainwidget.cpp b/examples/widgets/gestures/imagegestures/mainwidget.cpp index c4e63e9e7d..59bb9570f0 100644 --- a/examples/widgets/gestures/imagegestures/mainwidget.cpp +++ b/examples/widgets/gestures/imagegestures/mainwidget.cpp @@ -1,52 +1,5 @@ -/**************************************************************************** -** -** 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include "imagewidget.h" #include "mainwidget.h" diff --git a/examples/widgets/gestures/imagegestures/mainwidget.h b/examples/widgets/gestures/imagegestures/mainwidget.h index 794f052f3c..d321b84136 100644 --- a/examples/widgets/gestures/imagegestures/mainwidget.h +++ b/examples/widgets/gestures/imagegestures/mainwidget.h @@ -1,52 +1,5 @@ -/**************************************************************************** -** -** 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #ifndef MAINWIDGET_H #define MAINWIDGET_H |