| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QGIFHANDLER_P_H |
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| 5 | #define QGIFHANDLER_P_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <QtGui/qimageiohandler.h> |
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| 19 | #include <QtGui/qimage.h> |
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| 20 | #include <QtCore/qbytearray.h> |
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| 21 | |
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| 22 | QT_BEGIN_NAMESPACE |
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| 23 | |
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| 24 | class QGIFFormat; |
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| 25 | class QGifHandler : public QImageIOHandler |
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| 26 | { |
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| 27 | public: |
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| 28 | QGifHandler(); |
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| 29 | ~QGifHandler(); |
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| 30 | |
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| 31 | bool canRead() const override; |
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| 32 | bool read(QImage *image) override; |
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| 33 | bool write(const QImage &image) override; |
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| 34 | |
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| 35 | static bool canRead(QIODevice *device); |
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| 36 | |
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| 37 | QVariant option(ImageOption option) const override; |
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| 38 | void setOption(ImageOption option, const QVariant &value) override; |
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| 39 | bool supportsOption(ImageOption option) const override; |
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| 40 | |
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| 41 | int imageCount() const override; |
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| 42 | int loopCount() const override; |
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| 43 | int nextImageDelay() const override; |
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| 44 | int currentImageNumber() const override; |
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| 45 | |
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| 46 | private: |
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| 47 | bool imageIsComing() const; |
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| 48 | QGIFFormat *gifFormat; |
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| 49 | QString fileName; |
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| 50 | mutable QByteArray buffer; |
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| 51 | mutable QImage lastImage; |
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| 52 | |
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| 53 | mutable int nextDelay; |
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| 54 | mutable int loopCnt; |
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| 55 | int frameNumber; |
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| 56 | mutable QList<QSize> imageSizes; |
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| 57 | mutable bool scanIsCached; |
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| 58 | }; |
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| 59 | |
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| 60 | QT_END_NAMESPACE |
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| 61 | |
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| 62 | #endif // QGIFHANDLER_P_H |
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| 63 | |
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