1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). |
4 | ** Contact: http://www.qt-project.org/legal |
5 | ** |
6 | ** This file is part of the QtSvg module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:LGPL$ |
9 | ** Commercial License Usage |
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15 | ** use the contact form at http://qt.digia.com/contact-us. |
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17 | ** GNU Lesser General Public License Usage |
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20 | ** Foundation and appearing in the file LICENSE.LGPL included in the |
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25 | ** In addition, as a special exception, Digia gives you certain additional |
26 | ** rights. These rights are described in the Digia Qt LGPL Exception |
27 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
28 | ** |
29 | ** GNU General Public License Usage |
30 | ** Alternatively, this file may be used under the terms of the GNU |
31 | ** General Public License version 3.0 as published by the Free Software |
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36 | ** |
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39 | ** |
40 | ****************************************************************************/ |
41 | |
42 | #ifndef QSVGHANDLER_P_H |
43 | #define QSVGHANDLER_P_H |
44 | |
45 | // |
46 | // W A R N I N G |
47 | // ------------- |
48 | // |
49 | // This file is not part of the Qt API. It exists purely as an |
50 | // implementation detail. This header file may change from version to |
51 | // version without notice, or even be removed. |
52 | // |
53 | // We mean it. |
54 | // |
55 | |
56 | #include "QtXml/qxmlstream.h" |
57 | |
58 | #ifndef QT_NO_SVG |
59 | |
60 | #include "QtCore/qhash.h" |
61 | #include "QtCore/qstack.h" |
62 | #include "qsvgstyle_p.h" |
63 | #include "private/qcssparser_p.h" |
64 | #include "private/qsvggraphics_p.h" |
65 | |
66 | QT_BEGIN_NAMESPACE |
67 | |
68 | class QSvgNode; |
69 | class QSvgTinyDocument; |
70 | class QSvgHandler; |
71 | class QColor; |
72 | class QSvgStyleSelector; |
73 | class QXmlStreamReader; |
74 | |
75 | struct QSvgCssAttribute |
76 | { |
77 | QXmlStreamStringRef name; |
78 | QXmlStreamStringRef value; |
79 | }; |
80 | |
81 | class QSvgHandler |
82 | { |
83 | public: |
84 | enum LengthType { |
85 | LT_PERCENT, |
86 | LT_PX, |
87 | LT_PC, |
88 | LT_PT, |
89 | LT_MM, |
90 | LT_CM, |
91 | LT_IN, |
92 | LT_OTHER |
93 | }; |
94 | |
95 | public: |
96 | QSvgHandler(QIODevice *device); |
97 | QSvgHandler(const QByteArray &data); |
98 | QSvgHandler(QXmlStreamReader *const data); |
99 | ~QSvgHandler(); |
100 | |
101 | QSvgTinyDocument *document() const; |
102 | |
103 | inline bool ok() const { |
104 | return document() != 0 && !xml->hasError(); |
105 | } |
106 | |
107 | inline QString errorString() const { return xml->errorString(); } |
108 | inline int lineNumber() const { return xml->lineNumber(); } |
109 | |
110 | void setDefaultCoordinateSystem(LengthType type); |
111 | LengthType defaultCoordinateSystem() const; |
112 | |
113 | void pushColor(const QColor &color); |
114 | void pushColorCopy(); |
115 | void popColor(); |
116 | QColor currentColor() const; |
117 | |
118 | void setInStyle(bool b); |
119 | bool inStyle() const; |
120 | |
121 | QSvgStyleSelector *selector() const; |
122 | |
123 | void setAnimPeriod(int start, int end); |
124 | int animationDuration() const; |
125 | |
126 | void parseCSStoXMLAttrs(QString css, QVector<QSvgCssAttribute> *attributes); |
127 | |
128 | inline QPen defaultPen() const |
129 | { return m_defaultPen; } |
130 | |
131 | public: |
132 | bool startElement(const QString &localName, const QXmlStreamAttributes &attributes); |
133 | bool endElement(const QStringRef &localName); |
134 | bool characters(const QStringRef &str); |
135 | bool processingInstruction(const QString &target, const QString &data); |
136 | |
137 | private: |
138 | void init(); |
139 | |
140 | QSvgTinyDocument *m_doc; |
141 | QStack<QSvgNode*> m_nodes; |
142 | |
143 | QList<QSvgNode*> m_resolveNodes; |
144 | |
145 | enum CurrentNode |
146 | { |
147 | Unknown, |
148 | Graphics, |
149 | Style |
150 | }; |
151 | QStack<CurrentNode> m_skipNodes; |
152 | |
153 | /*! |
154 | Follows the depths of elements. The top is current xml:space |
155 | value that applies for a given element. |
156 | */ |
157 | QStack<QSvgText::WhitespaceMode> m_whitespaceMode; |
158 | |
159 | QSvgRefCounter<QSvgStyleProperty> m_style; |
160 | |
161 | LengthType m_defaultCoords; |
162 | |
163 | QStack<QColor> m_colorStack; |
164 | QStack<int> m_colorTagCount; |
165 | |
166 | bool m_inStyle; |
167 | |
168 | QSvgStyleSelector *m_selector; |
169 | |
170 | int m_animEnd; |
171 | |
172 | QXmlStreamReader *const xml; |
173 | QCss::Parser m_cssParser; |
174 | void parse(); |
175 | void resolveGradients(QSvgNode *node); |
176 | |
177 | QPen m_defaultPen; |
178 | /** |
179 | * Whether we own the variable xml, and hence whether |
180 | * we need to delete it. |
181 | */ |
182 | const bool m_ownsReader; |
183 | }; |
184 | |
185 | QT_END_NAMESPACE |
186 | |
187 | #endif // QT_NO_SVG |
188 | #endif // QSVGHANDLER_P_H |
189 | |