| 1 | /* |
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| 2 | SPDX-FileCopyrightText: 2020 Kai Uwe Broulik <kde@broulik.de> |
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| 3 | |
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| 4 | SPDX-License-Identifier: LGPL-2.0-or-later |
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| 5 | */ |
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| 6 | |
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| 7 | #ifndef KIMG_ANI_P_H |
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| 8 | #define KIMG_ANI_P_H |
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| 9 | |
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| 10 | #include <QImageIOPlugin> |
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| 11 | #include <QSize> |
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| 12 | |
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| 13 | class ANIHandler : public QImageIOHandler |
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| 14 | { |
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| 15 | public: |
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| 16 | ANIHandler(); |
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| 17 | |
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| 18 | bool canRead() const override; |
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| 19 | bool read(QImage *image) override; |
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| 20 | |
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| 21 | int currentImageNumber() const override; |
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| 22 | int imageCount() const override; |
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| 23 | bool jumpToImage(int imageNumber) override; |
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| 24 | bool jumpToNextImage() override; |
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| 25 | |
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| 26 | int loopCount() const override; |
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| 27 | int nextImageDelay() const override; |
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| 28 | |
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| 29 | bool supportsOption(ImageOption option) const override; |
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| 30 | QVariant option(ImageOption option) const override; |
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| 31 | |
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| 32 | static bool canRead(QIODevice *device); |
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| 33 | |
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| 34 | private: |
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| 35 | bool ensureScanned() const; |
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| 36 | |
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| 37 | bool m_scanned = false; |
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| 38 | |
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| 39 | int m_currentImageNumber = 0; |
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| 40 | |
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| 41 | int m_frameCount = 0; // "physical" frames |
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| 42 | int m_imageCount = 0; // logical images |
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| 43 | // Stores a custom sequence of images |
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| 44 | QList<int> m_imageSequence; |
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| 45 | // and the corresponding offsets where they are |
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| 46 | // since we can't read the image data sequentally in this case then |
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| 47 | QList<qint64> m_frameOffsets; |
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| 48 | qint64 m_firstFrameOffset = 0; |
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| 49 | |
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| 50 | int m_displayRate = 0; |
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| 51 | QList<int> m_displayRates; |
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| 52 | |
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| 53 | QString m_name; |
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| 54 | QString m_artist; |
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| 55 | QSize m_size; |
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| 56 | }; |
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| 57 | |
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| 58 | class ANIPlugin : public QImageIOPlugin |
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| 59 | { |
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| 60 | Q_OBJECT |
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| 61 | Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QImageIOHandlerFactoryInterface" FILE "ani.json" ) |
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| 62 | |
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| 63 | public: |
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| 64 | Capabilities capabilities(QIODevice *device, const QByteArray &format) const override; |
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| 65 | QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const override; |
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| 66 | }; |
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| 67 | |
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| 68 | #endif // KIMG_ANI_P_H |
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| 69 | |
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