Totally FITH everything

[ipdf/code.git] / src / document.h

diff --git a/src/document.h b/src/document.h
index 89e854a..d67b0b2 100644 (file)
--- a/src/document.h
+++ b/src/document.h
@@ -2,29 +2,118 @@
 #define _DOCUMENT_H
 
 #include "ipdf.h"
+#include "quadtree.h"
+
+#include <map>
+
+#include "../contrib/pugixml-1.4/src/pugixml.hpp"
+#include "stb_truetype.h"
+
+typedef struct stbtt_fontinfo stbtt_fontinfo;
 
 namespace IPDF
 {
+       struct SVGMatrix
+       {
+               Real a; // width
+               Real c; // skew x by y
+               Real e; // translate x
+               
+               Real b; // skew y by x
+               Real d; // height
+               Real f; // translate y
+       };
+       // SVG matrix transforms (x,y) <- (a x' + c y' + e, b x' + d y' + f)
+       // Equivelant to OpenGL 3d matrix transform ((a, c, e) (b, d, f) (0,0,1))
+       
        class Document
        {
                public:
-                       Document(const std::string & filename = "") : m_objects(), m_count(0) {Load(filename);}
-                       virtual ~Document() {}
+                       Document(const std::string & filename = "", const std::string & font_filename = "fonts/DejaVuSansMono.ttf") : m_objects(), m_count(0), m_font_data(NULL), m_font()
+                       {
+                               Load(filename);
+                               if (font_filename != "")
+                                       SetFont(font_filename);
+                       }
+                       virtual ~Document() 
+                       {
+                               free(m_font_data);
+                       }
+                       
+                       
 
                        void Load(const std::string & filename = "");
                        void Save(const std::string & filename);
-                       void Add(ObjectType type, const Rect & bounds);
                        void DebugDumpObjects();
 
                        unsigned ObjectCount() const {return m_count;}
+                       inline const Objects & GetObjects() const {return m_objects;}
 
                        bool operator==(const Document & equ) const;
                        bool operator!=(const Document & equ) const {return !(this->operator==(equ));}
 
+                       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));
+                       unsigned AddBezier(const Bezier & bezier);
+                       unsigned Add(ObjectType type, const Rect & bounds, unsigned data_index = 0, QuadTreeIndex qtnode = 0);
+                       unsigned AddBezierData(const Bezier & bezier);
+                       unsigned AddPathData(const Path & path);
+
+
+                       /** SVG Related functions **/
+                       
+                       /** Load an SVG text file and add to the document **/
+                       void LoadSVG(const std::string & filename, const Rect & bounds = Rect(0,0,1,1));
+                       void ParseSVG(const std::string & svg, const Rect & bounds = Rect(0,0,1,1));
+                       
+                       /** Parse an SVG node or SVG-group node, adding children to the document **/
+                       void ParseSVGNode(pugi::xml_node & root, SVGMatrix & transform);
+                       /** Parse an SVG path with string **/
+                       std::pair<unsigned, unsigned> ParseSVGPathData(const std::string & d, const SVGMatrix & transform, bool & closed);
+                       
+                       /** Modify an SVG transformation matrix **/
+                       static void ParseSVGTransform(const std::string & s, SVGMatrix & transform);
+                       
+                       /** Extract CSS values (shudder) from style **/
+                       static void ParseSVGStyleData(const std::string & style, std::map<std::string, std::string> & results);
+
+                       /** Font related functions **/
+                       void SetFont(const std::string & font_filename);
+                       void AddText(const std::string & text, Real scale, Real x, Real y);
+                       
+                       void AddFontGlyphAtPoint(stbtt_fontinfo *font, int character, Real scale, Real x, Real y);
+                       
+                       void TransformObjectBounds(const SVGMatrix & transform);
+                       void TranslateObjects(const Real & x, const Real & y, ObjectType type = NUMBER_OF_OBJECT_TYPES);
+                       void ScaleObjectsAboutPoint(const Real & x, const Real & y, const Real & scale_amount, ObjectType type = NUMBER_OF_OBJECT_TYPES);
+                       
+#ifndef QUADTREE_DISABLED
+                       inline const QuadTree& GetQuadTree() { if (m_quadtree.root_id == QUADTREE_EMPTY) { GenBaseQuadtree(); } return m_quadtree; }
+                       QuadTreeIndex GenQuadChild(QuadTreeIndex parent, QuadTreeNodeChildren type);
+                       QuadTreeIndex GenQuadParent(QuadTreeIndex child, QuadTreeNodeChildren mytype);
+                       // Returns the number of objects the current object formed when clipped, the objects in question are added to the end of the document.
+                       int ClipObjectToQuadChild(int object_id, QuadTreeNodeChildren type);
+#endif
+
+                       void ClearObjects()
+                       {
+                               m_count = 0;
+                               m_objects.Clear();
+                       }
+
+
                private:
                        friend class View;
                        Objects m_objects;
+#ifndef QUADTREE_DISABLED
+                       QuadTree m_quadtree;
+                       void GenBaseQuadtree();
+#endif
                        unsigned m_count;
+                       unsigned char * m_font_data;
+                       stbtt_fontinfo m_font;
+               
+                       
+
        };
 }