1 files changed, 109 insertions, 0 deletions
diff --git a/examples/qml/imageprovider/imageprovider.cpp b/examples/qml/imageprovider/imageprovider.cpp
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+++ b/examples/qml/imageprovider/imageprovider.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** 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 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 <qqmlextensionplugin.h>
+
+#include <qqmlengine.h>
+#include <qquickimageprovider.h>
+#include <QImage>
+#include <QPainter>
+
+//![0]
+class ColorImageProvider : public QQuickImageProvider
+{
+public:
+    ColorImageProvider()
+        : QQuickImageProvider(QQuickImageProvider::Pixmap)
+    {
+    }
+
+    QPixmap requestPixmap(const QString &id, QSize *size, const QSize &requestedSize)
+    {
+        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());
+//![0]
+
+        // write the color name
+        QPainter painter(&pixmap);
+        QFont f = painter.font();
+        f.setPixelSize(20);
+        painter.setFont(f);
+        painter.setPen(Qt::black);
+        if (requestedSize.isValid())
+            painter.scale(requestedSize.width() / width, requestedSize.height() / height);
+        painter.drawText(QRectF(0, 0, width, height), Qt::AlignCenter, id);
+
+//![1]
+        return pixmap;
+    }
+};
+//![1]
+
+
+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"