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Diffstat (limited to 'src/quick/doc/snippets/imgprovider/imageprovider.cpp')
-rw-r--r-- | src/quick/doc/snippets/imgprovider/imageprovider.cpp | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/quick/doc/snippets/imgprovider/imageprovider.cpp b/src/quick/doc/snippets/imgprovider/imageprovider.cpp new file mode 100644 index 0000000000..cc1256cda5 --- /dev/null +++ b/src/quick/doc/snippets/imgprovider/imageprovider.cpp @@ -0,0 +1,96 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the documentation 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 <QtGui/QGuiApplication> +#include <QtQml/QQmlEngine> +#include <QtQuick/QQuickImageProvider> +#include <QtQuick/QQuickView> +#include <QtCore/QUrl> +#include <QtCore/QSize> +#include <QtGui/QPixmap> +#include <QtGui/QColor> + +//![0] +class ColorImageProvider : public QQuickImageProvider +{ +public: + ColorImageProvider() + : QQuickImageProvider(QQuickImageProvider::Pixmap) + { + } + + QPixmap requestPixmap(const QString &id, QSize *size, const QSize &requestedSize) override + { + int width = 100; + int height = 50; + + if (size) + *size = QSize(width, height); + QPixmap pixmap(requestedSize.width() > 0 ? requestedSize.width() : width, + requestedSize.height() > 0 ? requestedSize.height() : height); + pixmap.fill(QColor(id).rgba()); + return pixmap; + } +}; +//![0] +//![1] +int main(int argc, char *argv[]) +{ +//![1] + QGuiApplication app(argc, argv); +//![2] + QQuickView view; + QQmlEngine *engine = view.engine(); + engine->addImageProvider(QLatin1String("colors"), new ColorImageProvider); + view.setSource(QUrl::fromLocalFile(QStringLiteral("imageprovider-example.qml"))); + view.show(); + return app.exec(); +} +//![2] |