QtQuickColouringBook/thumbnailimageprovider.cpp

#include "thumbnailimageprovider.h"
#include "FilePathConst.h"
#include <QApplication>
#include <QDebug>
#include <QUrl>

ThumbnailImageProvider::ThumbnailImageProvider()
    : QDeclarativeImageProvider(QDeclarativeImageProvider::Image)
{
}

QImage ThumbnailImageProvider::requestImage(const QString & id, QSize * size, const QSize & requestedSize)
{
    QString path(QUrl(getThumbnailDataRoot()).toLocalFile());
    if (id.startsWith("resourceid"))
    {
        path += "drm/data/";
    }
    path += id;

    qDebug() << "requestImage " << path;

    int width = 100;
    int height = 50;

    if (size)
        *size = QSize(width, height);

    QImage image(requestedSize.width() > 0 ? requestedSize.width() : width,
                 requestedSize.height() > 0 ? requestedSize.height() : height,
                 QImage::Format_ARGB32_Premultiplied);

    if (!image.load(path))
    {
        qDebug() << "load failed";
    }
    return image;
}