69 lines
1.5 KiB
C++
69 lines
1.5 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#pragma once
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#include <QtGui/QImage>
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#include <crl/crl_time.h>
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namespace Ui {
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class FrameGenerator {
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public:
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virtual ~FrameGenerator() = default;
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// 0 means unknown.
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[[nodiscard]] virtual int count() = 0;
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// 0. means unknown.
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[[nodiscard]] virtual double rate() = 0;
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struct Frame {
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crl::time duration = 0;
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QImage image;
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bool last = false;
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};
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[[nodiscard]] virtual Frame renderNext(
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QImage storage,
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QSize size,
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Qt::AspectRatioMode mode = Qt::IgnoreAspectRatio) = 0;
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[[nodiscard]] virtual Frame renderCurrent(
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QImage storage,
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QSize size,
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Qt::AspectRatioMode mode = Qt::IgnoreAspectRatio) = 0;
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virtual void jumpToStart() = 0;
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};
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class ImageFrameGenerator final : public Ui::FrameGenerator {
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public:
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explicit ImageFrameGenerator(const QByteArray &bytes);
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explicit ImageFrameGenerator(const QImage &image);
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int count() override;
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double rate() override;
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Frame renderNext(
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QImage storage,
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QSize size,
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Qt::AspectRatioMode mode = Qt::IgnoreAspectRatio) override;
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Frame renderCurrent(
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QImage storage,
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QSize size,
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Qt::AspectRatioMode mode = Qt::IgnoreAspectRatio) override;
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void jumpToStart() override;
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private:
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QByteArray _bytes;
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QImage _image;
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};
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[[nodiscard]] bool GoodStorageForFrame(const QImage &storage, QSize size);
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[[nodiscard]] QImage CreateFrameStorage(QSize size);
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} // namespace Ui
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