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/*************************************************************************
** SVGTree.h **
** **
** This file is part of dvisvgm -- the DVI to SVG converter **
** Copyright (C) 2005-2012 Martin Gieseking <martin.gieseking@uos.de> **
** **
** This program is free software; you can redistribute it and/or **
** modify it under the terms of the GNU General Public License as **
** published by the Free Software Foundation; either version 3 of **
** the License, or (at your option) any later version. **
** **
** This program is distributed in the hope that it will be useful, but **
** WITHOUT ANY WARRANTY; without even the implied warranty of **
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
** GNU General Public License for more details. **
** **
** You should have received a copy of the GNU General Public License **
** along with this program; if not, see <http://www.gnu.org/licenses/>. **
*************************************************************************/
#ifndef SVGTREE_H
#define SVGTREE_H
#include <map>
#include <set>
#include "Color.h"
#include "GFGlyphTracer.h"
#include "Matrix.h"
#include "XMLDocument.h"
#include "XMLNode.h"
class BoundingBox;
class Color;
struct Font;
class Matrix;
class PhysicalFont;
class SVGTree
{
template <typename T>
class Property {
public:
Property (const T &v) : _value(v), _changed(false) {}
void set (const T &v) {
if (v != _value) {
_value = v;
_changed = true;
}
}
const T& get () const {return _value;}
operator const T& () {return _value;}
bool changed () const {return _changed;}
void changed (bool c) {_changed = c;}
private:
T _value;
bool _changed;
};
public:
SVGTree ();
void reset ();
void write (std::ostream &os) const {_doc.write(os);}
void newPage (int pageno);
void appendToDefs (XMLNode *node);
void appendToPage (XMLNode *node) {_page->append(node);}
void prependToPage (XMLNode *node){_page->prepend(node);}
void appendToDoc (XMLNode *node) {_doc.append(node);}
void appendToRoot (XMLNode *node) {_root->append(node);}
void appendChar (int c, double x, double y, const Font &font);
void appendFontStyles (const std::set<const Font*> &fonts);
void append (const PhysicalFont &font, const std::set<int> &chars, GFGlyphTracer::Callback *cb=0);
void setBBox (const BoundingBox &bbox);
void setFont (int id, const Font *font);
void setX (double x) {_xchanged = true;}
void setY (double y) {_ychanged = true;}
void setMatrix (const Matrix &m) {_matrix.set(m);}
void setColor (const Color &c) {_color.set(c);}
void transformPage (const Matrix *m);
const Color& getColor () const {return _color.get();}
const Matrix& getMatrix () const {return _matrix.get();}
XMLElementNode* rootNode () const {return _root;}
public:
static bool USE_FONTS; ///< if true, create font references and don't draw paths directly
static bool CREATE_STYLE; ///< should <style>...</style> and class attributes be used to reference fonts?
static bool CREATE_USE_ELEMENTS; ///< allow generation of <use/> elements?
protected:
void newTextNode (double x, double y);
private:
XMLDocument _doc;
XMLElementNode *_root, *_page, *_text, *_span, *_defs;
bool _xchanged, _ychanged;
Property<const Font*> _font;
Property<Color> _color;
Property<Matrix> _matrix;
int _fontnum;
};
#endif
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