9 #include "../contrib/pugixml-1.4/src/pugixml.hpp"
10 #include "stb_truetype.h"
12 typedef struct stbtt_fontinfo stbtt_fontinfo;
19 Real c; // skew x by y
20 Real e; // translate x
22 Real b; // skew y by x
24 Real f; // translate y
26 // SVG matrix transforms (x,y) <- (a x' + c y' + e, b x' + d y' + f)
27 // Equivelant to OpenGL 3d matrix transform ((a, c, e) (b, d, f) (0,0,1))
32 Document(const std::string & filename = "", const std::string & font_filename = "fonts/DejaVuSansMono.ttf") : m_objects(), m_count(0), m_font_data(NULL), m_font()
35 if (font_filename != "")
36 SetFont(font_filename);
37 #ifndef QUADTREE_DISABLED
38 m_current_insert_node = -1;
48 void Load(const std::string & filename = "");
49 void Save(const std::string & filename);
50 void DebugDumpObjects();
52 unsigned ObjectCount() const {return m_count;}
53 inline const Objects & GetObjects() const {return m_objects;}
55 bool operator==(const Document & equ) const;
56 bool operator!=(const Document & equ) const {return !(this->operator==(equ));}
58 unsigned AddPath(unsigned start_index, unsigned end_index, const Colour & shading=Colour(0.6,0.6,0.6,1), const Colour & stroke=Colour(0,0,0,0));
59 unsigned AddBezier(const Bezier & bezier);
60 int AddClip(ObjectType type, const Rect & bounds, unsigned data_index, const Rect & clip_rect);
61 unsigned Add(ObjectType type, const Rect & bounds, unsigned data_index = 0, QuadTreeIndex qtnode = -1);
62 unsigned AddBezierData(const Bezier & bezier);
63 unsigned AddPathData(const Path & path);
66 /** SVG Related functions **/
68 /** Load an SVG text file and add to the document **/
69 void LoadSVG(const std::string & filename, const Rect & bounds = Rect(0,0,1,1));
70 void ParseSVG(const std::string & svg, const Rect & bounds = Rect(0,0,1,1));
72 /** Parse an SVG node or SVG-group node, adding children to the document **/
73 void ParseSVGNode(pugi::xml_node & root, SVGMatrix & transform);
74 /** Parse an SVG path with string **/
75 std::pair<unsigned, unsigned> ParseSVGPathData(const std::string & d, const SVGMatrix & transform, bool & closed);
77 /** Modify an SVG transformation matrix **/
78 static void ParseSVGTransform(const std::string & s, SVGMatrix & transform);
80 /** Extract CSS values (shudder) from style **/
81 static void ParseSVGStyleData(const std::string & style, std::map<std::string, std::string> & results);
83 /** Font related functions **/
84 void SetFont(const std::string & font_filename);
85 void AddText(const std::string & text, Real scale, Real x, Real y);
87 void AddFontGlyphAtPoint(stbtt_fontinfo *font, int character, Real scale, Real x, Real y);
89 void TransformObjectBounds(const SVGMatrix & transform, ObjectType type = NUMBER_OF_OBJECT_TYPES);
90 void TranslateObjects(const Real & x, const Real & y, ObjectType type = NUMBER_OF_OBJECT_TYPES);
91 void ScaleObjectsAboutPoint(const Real & x, const Real & y, const Real & scale_amount, ObjectType type = NUMBER_OF_OBJECT_TYPES);
93 #ifndef QUADTREE_DISABLED
94 inline const QuadTree& GetQuadTree() { if (m_quadtree.root_id == QUADTREE_EMPTY) { GenBaseQuadtree(); } return m_quadtree; }
95 QuadTreeIndex GenQuadChild(QuadTreeIndex parent, QuadTreeNodeChildren type);
96 QuadTreeIndex GenQuadParent(QuadTreeIndex child, QuadTreeNodeChildren mytype);
97 void OverlayQuadChildren(QuadTreeIndex orig_parent, QuadTreeIndex parent, QuadTreeNodeChildren type);
98 void OverlayQuadParent(QuadTreeIndex orig_child, QuadTreeIndex child, QuadTreeNodeChildren type);
99 void PropagateQuadChanges(QuadTreeIndex node);
100 // Returns the number of objects the current object formed when clipped, the objects in question are added to the end of the document.
101 int ClipObjectToQuadChild(int object_id, QuadTreeNodeChildren type);
103 void SetQuadtreeInsertNode(QuadTreeIndex node) { m_current_insert_node = node; }
116 #ifndef QUADTREE_DISABLED
118 void GenBaseQuadtree();
120 QuadTreeIndex m_current_insert_node;
122 bool m_document_dirty;
124 unsigned char * m_font_data;
125 stbtt_fontinfo m_font;