Only slightly totally broken SVG transformations

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

diff --git a/src/document.h b/src/document.h
index 8f2c087..52e9295 100644 (file)
--- a/src/document.h
+++ b/src/document.h
@@ -11,6 +11,18 @@ typedef struct stbtt_fontinfo stbtt_fontinfo;
 
 namespace IPDF
 {
+       struct SVGMatrix
+       {
+               Real a; // width
+               Real b; // skew y by x
+               Real c; // skew x by y
+               Real d; // height
+               Real e; // translate x
+               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:
@@ -41,6 +53,10 @@ namespace IPDF
                        unsigned AddBezierData(const Bezier & bezier);
                        
 
+
+                       
+
+                       
                        
                        /** SVG Related functions **/
                        
@@ -48,9 +64,12 @@ namespace IPDF
                        void LoadSVG(const std::string & filename, 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, const Rect & bounds, Real & width, Real & height);
+                       void ParseSVGNode(pugi::xml_node & root, SVGMatrix & transform);
                        /** Parse an SVG path with string **/
-                       void ParseSVGPathData(const std::string & d, const Rect & bounds);
+                       void ParseSVGPathData(const std::string & d, const SVGMatrix & transform);
+                       
+                       /** Modify an SVG transformation matrix **/
+                       static void ParseSVGTransform(const std::string & s, SVGMatrix & transform);
 
                        /** Font related functions **/
                        void SetFont(const std::string & font_filename);