83 lines
1.8 KiB
C++
83 lines
1.8 KiB
C++
// SPDX-FileCopyrightText: 2021 Nheko Contributors
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// SPDX-FileCopyrightText: 2022 Nheko Contributors
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//
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// SPDX-License-Identifier: GPL-3.0-or-later
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#pragma once
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#include <QQuickAsyncImageProvider>
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#include <QQuickImageResponse>
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#include <QImage>
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#include <QThreadPool>
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class BlurhashRunnable
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: public QObject
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, public QRunnable
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{
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Q_OBJECT
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public:
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BlurhashRunnable(const QString &id, const QSize &requestedSize)
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: m_id(id)
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, m_requestedSize(requestedSize)
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{}
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void run() override;
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signals:
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void done(QImage);
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void error(QString);
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private:
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QString m_id;
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QSize m_requestedSize;
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};
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class BlurhashResponse : public QQuickImageResponse
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{
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public:
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BlurhashResponse(const QString &id, const QSize &requestedSize)
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{
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auto runnable = new BlurhashRunnable(id, requestedSize);
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connect(runnable, &BlurhashRunnable::done, this, &BlurhashResponse::handleDone);
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connect(runnable, &BlurhashRunnable::error, this, &BlurhashResponse::handleError);
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QThreadPool::globalInstance()->start(runnable);
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}
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QQuickTextureFactory *textureFactory() const override
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{
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return QQuickTextureFactory::textureFactoryForImage(m_image);
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}
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QString errorString() const override { return m_error; }
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void handleDone(QImage image)
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{
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m_image = std::move(image);
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emit finished();
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}
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void handleError(QString error)
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{
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m_error = error;
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emit finished();
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}
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QString m_error;
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QImage m_image;
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};
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class BlurhashProvider
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:
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#if QT_VERSION < 0x60000
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public QObject
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,
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#endif
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public QQuickAsyncImageProvider
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{
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Q_OBJECT
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public slots:
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QQuickImageResponse *
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requestImageResponse(const QString &id, const QSize &requestedSize) override
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{
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return new BlurhashResponse(id, requestedSize);
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}
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};
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