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#include <qdeclarativeextensionplugin.h>

#include <qdeclarativeengine.h>

#include <qdeclarativecontext.h>

#include <qdeclarative.h>

#include <qdeclarativeitem.h>

#include <qdeclarativeimageprovider.h>

#include <qdeclarativeview.h>

#include <QImage>

#include <QPainter>

/*

   This example illustrates using a QDeclarativeImageProvider to serve

   images asynchronously.

*/

//![0]

class ColorImageProvider : public QDeclarativeImageProvider

{

public:

    // This is run in a low priority thread.

    QImage request(const QString &id, QSize *size, const QSize &req_size)

    {

        if (size) *size = QSize(100,50);

        QImage image(

                req_size.width() > 0 ? req_size.width() : 100,

                req_size.height() > 0 ? req_size.height() : 50,

                QImage::Format_RGB32);

        image.fill(QColor(id).rgba());

        QPainter p(&image);

        QFont f = p.font();

        f.setPixelSize(30);

        p.setFont(f);

        p.setPen(Qt::black);

        if (req_size.isValid())

            p.scale(req_size.width()/100.0, req_size.height()/50.0);

        p.drawText(QRectF(0,0,100,50),Qt::AlignCenter,id);

        return image;

    }

};

class ImageProviderExtensionPlugin : public QDeclarativeExtensionPlugin

{

    Q_OBJECT

public:

    void registerTypes(const char *uri) {

        Q_UNUSED(uri);

    }

    void initializeEngine(QDeclarativeEngine *engine, const char *uri) {

        Q_UNUSED(uri);

        engine->addImageProvider("colors", new ColorImageProvider);

        QStringList dataList;

        dataList.append("image://colors/red");

        dataList.append("image://colors/green");

        dataList.append("image://colors/blue");

        dataList.append("image://colors/brown");

        dataList.append("image://colors/orange");

        dataList.append("image://colors/purple");

        dataList.append("image://colors/yellow");

        QDeclarativeContext *ctxt = engine->rootContext();

        ctxt->setContextProperty("myModel", QVariant::fromValue(dataList));

    }

};

#include "imageprovider.moc"

Q_EXPORT_PLUGIN(ImageProviderExtensionPlugin);

//![0]