/**************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the demonstration applications 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 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 #include #include #include #include #include class ColorImageProvider : public QQuickImageProvider { public: ColorImageProvider() : QQuickImageProvider(QQuickImageProvider::Pixmap) { } QPixmap requestPixmap(const QString &id, QSize *size, const QSize &requestedSize) { int width = 50; int height = 50; QPixmap pixmap(requestedSize.width() > 0 ? requestedSize.width() : width, requestedSize.height() > 0 ? requestedSize.height() : height); if (size) *size = QSize(pixmap.width(), pixmap.height()); pixmap.fill(QColor(id).rgba()); // draw lines on even y offsets QPainter p(&pixmap); for (int y = 0; y < pixmap.height(); y+=2) { p.drawLine(0, y, pixmap.width(), y); } return pixmap; } }; class ImageProviderExtensionPlugin : public QQmlExtensionPlugin { Q_OBJECT Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface") public: void registerTypes(const char *uri) { Q_UNUSED(uri); } void initializeEngine(QQmlEngine *engine, const char *uri) { Q_UNUSED(uri); engine->addImageProvider("colors", new ColorImageProvider); } }; #define QQmlExtensionInterface_iid "org.qt-project.Qt.QQmlExtensionInterface" #include "imageprovider.moc"