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2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the QtGui module of the Qt Toolkit. |
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8 | ** $QT_BEGIN_LICENSE:LGPL$ |
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26 | ** Alternatively, this file may be used under the terms of the GNU |
27 | ** General Public License version 2.0 or (at your option) the GNU General |
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37 | ** |
38 | ****************************************************************************/ |
39 | |
40 | #ifndef QPICTURE_H |
41 | #define QPICTURE_H |
42 | |
43 | #include <QtGui/qtguiglobal.h> |
44 | #include <QtCore/qiodevice.h> |
45 | #include <QtCore/qstringlist.h> |
46 | #include <QtCore/qsharedpointer.h> |
47 | #include <QtGui/qpaintdevice.h> |
48 | |
49 | QT_BEGIN_NAMESPACE |
50 | |
51 | |
52 | #ifndef QT_NO_PICTURE |
53 | |
54 | class QPicturePrivate; |
55 | class Q_GUI_EXPORT QPicture : public QPaintDevice |
56 | { |
57 | Q_DECLARE_PRIVATE(QPicture) |
58 | public: |
59 | explicit QPicture(int formatVersion = -1); |
60 | QPicture(const QPicture &); |
61 | ~QPicture(); |
62 | |
63 | bool isNull() const; |
64 | |
65 | int devType() const override; |
66 | uint size() const; |
67 | const char* data() const; |
68 | virtual void setData(const char* data, uint size); |
69 | |
70 | bool play(QPainter *p); |
71 | |
72 | bool load(QIODevice *dev, const char *format = nullptr); |
73 | bool load(const QString &fileName, const char *format = nullptr); |
74 | bool save(QIODevice *dev, const char *format = nullptr); |
75 | bool save(const QString &fileName, const char *format = nullptr); |
76 | |
77 | QRect boundingRect() const; |
78 | void setBoundingRect(const QRect &r); |
79 | |
80 | QPicture& operator=(const QPicture &p); |
81 | inline QPicture &operator=(QPicture &&other) noexcept |
82 | { qSwap(value1&: d_ptr, value2&: other.d_ptr); return *this; } |
83 | inline void swap(QPicture &other) noexcept |
84 | { d_ptr.swap(other&: other.d_ptr); } |
85 | void detach(); |
86 | bool isDetached() const; |
87 | |
88 | friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &in, const QPicture &p); |
89 | friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &in, QPicture &p); |
90 | |
91 | #if QT_DEPRECATED_SINCE(5, 10) |
92 | static QT_DEPRECATED const char* pictureFormat(const QString &fileName); |
93 | static QT_DEPRECATED QList<QByteArray> inputFormats(); |
94 | static QT_DEPRECATED QList<QByteArray> outputFormats(); |
95 | static QT_DEPRECATED QStringList inputFormatList(); |
96 | static QT_DEPRECATED QStringList outputFormatList(); |
97 | #endif // QT_DEPRECATED_SINCE(5, 10) |
98 | |
99 | QPaintEngine *paintEngine() const override; |
100 | |
101 | protected: |
102 | QPicture(QPicturePrivate &data); |
103 | |
104 | int metric(PaintDeviceMetric m) const override; |
105 | |
106 | private: |
107 | bool exec(QPainter *p, QDataStream &ds, int i); |
108 | |
109 | QExplicitlySharedDataPointer<QPicturePrivate> d_ptr; |
110 | friend class QPicturePaintEngine; |
111 | friend class QAlphaPaintEngine; |
112 | friend class QPreviewPaintEngine; |
113 | |
114 | public: |
115 | typedef QExplicitlySharedDataPointer<QPicturePrivate> DataPtr; |
116 | inline DataPtr &data_ptr() { return d_ptr; } |
117 | }; |
118 | |
119 | Q_DECLARE_SHARED(QPicture) |
120 | |
121 | |
122 | #ifndef QT_NO_PICTUREIO |
123 | class QIODevice; |
124 | class QPictureIO; |
125 | typedef void (*picture_io_handler)(QPictureIO *); // picture IO handler |
126 | |
127 | struct QPictureIOData; |
128 | |
129 | class Q_GUI_EXPORT QPictureIO |
130 | { |
131 | public: |
132 | QPictureIO(); |
133 | QPictureIO(QIODevice *ioDevice, const char *format); |
134 | QPictureIO(const QString &fileName, const char *format); |
135 | ~QPictureIO(); |
136 | |
137 | const QPicture &picture() const; |
138 | int status() const; |
139 | const char *format() const; |
140 | QIODevice *ioDevice() const; |
141 | QString fileName() const; |
142 | int quality() const; |
143 | QString description() const; |
144 | const char *parameters() const; |
145 | float gamma() const; |
146 | |
147 | void setPicture(const QPicture &); |
148 | void setStatus(int); |
149 | void setFormat(const char *); |
150 | void setIODevice(QIODevice *); |
151 | void setFileName(const QString &); |
152 | void setQuality(int); |
153 | void setDescription(const QString &); |
154 | void setParameters(const char *); |
155 | void setGamma(float); |
156 | |
157 | bool read(); |
158 | bool write(); |
159 | |
160 | static QByteArray pictureFormat(const QString &fileName); |
161 | static QByteArray pictureFormat(QIODevice *); |
162 | static QList<QByteArray> inputFormats(); |
163 | static QList<QByteArray> outputFormats(); |
164 | |
165 | static void defineIOHandler(const char *format, |
166 | const char *, |
167 | const char *flags, |
168 | picture_io_handler read_picture, |
169 | picture_io_handler write_picture); |
170 | |
171 | private: |
172 | Q_DISABLE_COPY(QPictureIO) |
173 | |
174 | void init(); |
175 | |
176 | QPictureIOData *d; |
177 | }; |
178 | |
179 | #endif //QT_NO_PICTUREIO |
180 | |
181 | |
182 | /***************************************************************************** |
183 | QPicture stream functions |
184 | *****************************************************************************/ |
185 | |
186 | #ifndef QT_NO_DATASTREAM |
187 | Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QPicture &); |
188 | Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QPicture &); |
189 | #endif |
190 | |
191 | #endif // QT_NO_PICTURE |
192 | |
193 | QT_END_NAMESPACE |
194 | |
195 | #endif // QPICTURE_H |
196 | |