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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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    40 ****************************************************************************/

    41 

    42 #ifndef QSVGGRAPHICS_P_H

    43 #define QSVGGRAPHICS_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 "qsvgnode_p.h"

    57 

    58 #ifndef QT_NO_SVG

    59 

    60 #include "QtGui/qpainterpath.h"

    61 #include "QtGui/qimage.h"

    62 #include "QtGui/qtextlayout.h"

    63 #include "QtGui/qtextoption.h"

    64 #include "QtCore/qstack.h"

    65 

    66 QT_BEGIN_NAMESPACE

    67 

    68 class QTextCharFormat;

    69 

    70 class QSvgAnimation : public QSvgNode

    71 {

    72 public:

    73     virtual void draw(QPainter *p, QSvgExtraStates &states);

    74     virtual Type type() const;

    75 };

    76 

    77 class QSvgArc : public QSvgNode

    78 {

    79 public:

    80     QSvgArc(QSvgNode *parent, const QPainterPath &path);

    81     virtual void draw(QPainter *p, QSvgExtraStates &states);

    82     virtual Type type() const;

    83     virtual QRectF bounds() const;

    84 private:

    85     QPainterPath cubic;

    86     QRectF m_cachedBounds;

    87 };

    88 

    89 class QSvgCircle : public QSvgNode

    90 {

    91 public:

    92     QSvgCircle(QSvgNode *parent, const QRectF &rect);

    93     virtual void draw(QPainter *p, QSvgExtraStates &states);

    94     virtual Type type() const;

    95     virtual QRectF bounds() const;

    96 private:

    97     QRectF m_bounds;

    98 };

    99 

   100 class QSvgEllipse : public QSvgNode

   101 {

   102 public:

   103     QSvgEllipse(QSvgNode *parent, const QRectF &rect);

   104     virtual void draw(QPainter *p, QSvgExtraStates &states);

   105     virtual Type type() const;

   106     virtual QRectF bounds() const;

   107 private:

   108     QRectF m_bounds;

   109 };

   110 

   111 class QSvgImage : public QSvgNode

   112 {

   113 public:

   114     QSvgImage(QSvgNode *parent, const QImage &image,

   115               const QRect &bounds);

   116     virtual void draw(QPainter *p, QSvgExtraStates &states);

   117     virtual Type type() const;

   118     virtual QRectF bounds() const;

   119 private:

   120     QImage m_image;

   121     QRect  m_bounds;

   122 };

   123 

   124 class QSvgLine : public QSvgNode

   125 {

   126 public:

   127     QSvgLine(QSvgNode *parent, const QLineF &line);

   128     virtual void draw(QPainter *p, QSvgExtraStates &states);

   129     virtual Type type() const;

   130     virtual QRectF bounds() const;

   131 private:

   132     QLineF m_bounds;

   133 };

   134 

   135 class QSvgPath : public QSvgNode

   136 {

   137 public:

   138     QSvgPath(QSvgNode *parent, const QPainterPath &qpath);

   139     virtual void draw(QPainter *p, QSvgExtraStates &states);

   140     virtual Type type() const;

   141     virtual QRectF bounds() const;

   142 

   143     QPainterPath *qpath() {

   144         return &m_path;

   145     }

   146 private:

   147     QPainterPath m_path;

   148     mutable QRectF m_cachedBounds;

   149 };

   150 

   151 class QSvgPolygon : public QSvgNode

   152 {

   153 public:

   154     QSvgPolygon(QSvgNode *parent, const QPolygonF &poly);

   155     virtual void draw(QPainter *p, QSvgExtraStates &states);

   156     virtual Type type() const;

   157     virtual QRectF bounds() const;

   158 private:

   159     QPolygonF m_poly;

   160 };

   161 

   162 class QSvgPolyline : public QSvgNode

   163 {

   164 public:

   165     QSvgPolyline(QSvgNode *parent, const QPolygonF &poly);

   166     virtual void draw(QPainter *p, QSvgExtraStates &states);

   167     virtual Type type() const;

   168     virtual QRectF bounds() const;

   169 private:

   170     QPolygonF m_poly;

   171 };

   172 

   173 class QSvgRect : public QSvgNode

   174 {

   175 public:

   176     QSvgRect(QSvgNode *paren, const QRectF &rect, int rx=0, int ry=0);

   177     virtual Type type() const;

   178     virtual void draw(QPainter *p, QSvgExtraStates &states);

   179     virtual QRectF bounds() const;

   180 private:

   181     QRectF m_rect;

   182     int m_rx, m_ry;

   183 };

   184 

   185 class  QSvgTspan;

   186 

   187 class  QSvgText : public QSvgNode

   188 {

   189 public:

   190     enum WhitespaceMode

   191     {

   192         Default,

   193         Preserve

   194     };

   195 

   196     QSvgText(QSvgNode *parent, const QPointF &coord);

   197     ~QSvgText();

   198     void setTextArea(const QSizeF &size);

   199 

   200     virtual void draw(QPainter *p, QSvgExtraStates &states);

   201     virtual Type type() const;

   202 

   203     void addTspan(QSvgTspan *tspan) {m_tspans.append(tspan);}

   204     void addText(const QString &text);

   205     void addLineBreak() {m_tspans.append(LINEBREAK);}

   206     void setWhitespaceMode(WhitespaceMode mode) {m_mode = mode;}

   207 

   208     //virtual QRectF bounds() const;

   209 private:

   210     static QSvgTspan * const LINEBREAK;

   211 

   212     QPointF m_coord;

   213 

   214     // 'm_tspans' is also used to store characters outside tspans and line breaks.

   215     // If a 'm_tspan' item is null, it indicates a line break.

   216     QVector<QSvgTspan *> m_tspans;

   217 

   218     Type m_type;

   219     QSizeF m_size;

   220     WhitespaceMode m_mode;

   221 };

   222 

   223 class  QSvgTspan : public QSvgNode

   224 {

   225 public:

   226     // tspans are also used to store normal text, so the 'isProperTspan' is used to separate text from tspan.

   227     QSvgTspan(QSvgNode *parent, bool isProperTspan = true)

   228         : QSvgNode(parent), m_mode(QSvgText::Default), m_isTspan(isProperTspan)

   229     {

   230     }

   231     ~QSvgTspan() { };

   232     virtual Type type() const {return TSPAN;}

   233     virtual void draw(QPainter *, QSvgExtraStates &) {Q_ASSERT(!"Tspans should be drawn through QSvgText::draw().");}

   234     void addText(const QString &text) {m_text += text;}

   235     const QString &text() const {return m_text;}

   236     bool isTspan() const {return m_isTspan;}

   237     void setWhitespaceMode(QSvgText::WhitespaceMode mode) {m_mode = mode;}

   238     QSvgText::WhitespaceMode whitespaceMode() const {return m_mode;}

   239 private:

   240     QString m_text;

   241     QSvgText::WhitespaceMode m_mode;

   242     bool m_isTspan;

   243 };

   244 

   245 class QSvgUse : public QSvgNode

   246 {

   247 public:

   248     QSvgUse(const QPointF &start, QSvgNode *parent, QSvgNode *link);

   249     virtual void draw(QPainter *p, QSvgExtraStates &states);

   250     virtual Type type() const;

   251     virtual QRectF bounds() const;

   252     virtual QRectF transformedBounds(const QTransform &transform) const;

   253 

   254 private:

   255     QSvgNode *m_link;

   256     QPointF   m_start;

   257     mutable QRectF    m_bounds;

   258 };

   259 

   260 class QSvgVideo : public QSvgNode

   261 {

   262 public:

   263     virtual void draw(QPainter *p, QSvgExtraStates &states);

   264     virtual Type type() const;

   265 };

   266 

   267 QT_END_NAMESPACE

   268 

   269 #endif // QT_NO_SVG

   270 #endif // QSVGGRAPHICS_P_H