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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <qqmlextensionplugin.h>
#include <qqmlengine.h>
#include <qquickimageprovider.h>
#include <QImage>
#include <QPainter>
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());
// 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);
return pixmap;
}
};
class ImageProviderExtensionPlugin : public QQmlEngineExtensionPlugin
{
Q_OBJECT
Q_PLUGIN_METADATA(IID QQmlEngineExtensionInterface_iid)
public:
void initializeEngine(QQmlEngine *engine, const char *uri) override
{
Q_UNUSED(uri);
engine->addImageProvider("colors", new ColorImageProvider);
}
};
#include "imageprovider.moc"
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