Infinite Quadtree precision now works with some Béziers

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

diff --git a/src/document.cpp b/src/document.cpp
index 0b72a3e..37f15e2 100644 (file)
--- a/src/document.cpp
+++ b/src/document.cpp
@@ -132,37 +132,15 @@ int Document::ClipObjectToQuadChild(int object_id, QuadTreeNodeChildren type)
                }
        case BEZIER:
                {
-               Rect obj_bounds = TransformToQuadChild(m_objects.bounds[object_id], type);
-               if (obj_bounds.x < 0)
-               {
-                       obj_bounds.w += obj_bounds.x;
-                       obj_bounds.x = 0;
-               }
-               if (obj_bounds.y < 0)
-               {
-                       obj_bounds.h += obj_bounds.y;
-                       obj_bounds.y = 0;
-               }
-               if (obj_bounds.x + obj_bounds.w > 1)
-               {
-                       obj_bounds.w += (1 - (obj_bounds.x + obj_bounds.w));
-               }
-               if (obj_bounds.y + obj_bounds.h > 1)
-               {
-                       obj_bounds.h += (1 - (obj_bounds.y + obj_bounds.h));
-               }
-               Rect child_node_bounds = TransformFromQuadChild(obj_bounds, type);
-               Rect clip_bezier_bounds;
-               clip_bezier_bounds.x = (child_node_bounds.x - m_objects.bounds[object_id].x) / m_objects.bounds[object_id].w;
-               clip_bezier_bounds.y = (child_node_bounds.y - m_objects.bounds[object_id].y) / m_objects.bounds[object_id].h;
-               clip_bezier_bounds.w = child_node_bounds.w / m_objects.bounds[object_id].w;
-               clip_bezier_bounds.h = child_node_bounds.h / m_objects.bounds[object_id].h;
-               std::vector<Bezier> new_curves = Bezier(m_objects.beziers[m_objects.data_indices[object_id]], child_node_bounds).ClipToRectangle(clip_bezier_bounds);
+//             Rect child_node_bounds = m_objects.bounds[object_id];
+               Rect clip_bezier_bounds = TransformRectCoordinates(m_objects.bounds[object_id], TransformFromQuadChild(Rect{0,0,1,1}, type)); 
+               std::vector<Bezier> new_curves = m_objects.beziers[m_objects.data_indices[object_id]].ClipToRectangle(clip_bezier_bounds);
                for (size_t i = 0; i < new_curves.size(); ++i)
                {
                        Rect new_bounds = TransformToQuadChild(m_objects.bounds[object_id], type);
-                       new_bounds = TransformToQuadChild(new_curves[i].SolveBounds(), type);
-                       Bezier new_curve_data = new_curves[i].ToRelative(new_bounds);
+                       Bezier new_curve_data = new_curves[i].ToAbsolute(TransformToQuadChild(m_objects.bounds[object_id],type));
+                       new_bounds = new_curve_data.SolveBounds();
+                       new_curve_data = new_curve_data.ToRelative(new_bounds);
                        unsigned index = AddBezierData(new_curve_data);
                        m_objects.bounds.push_back(new_bounds);
                        m_objects.types.push_back(BEZIER);
@@ -295,8 +273,8 @@ void Document::Load(const string & filename)
                        LoadStructVector<Bezier>(file, chunk_size/sizeof(Bezier), m_objects.beziers);
                        break;
                        
-               case CT_OBJGROUPS:
-                       Debug("Group data...");
+               case CT_OBJPATHS:
+                       Debug("Path data...");
                        Warn("Not handled because lazy");
                        break;
                }
@@ -310,32 +288,12 @@ void Document::Load(const string & filename)
 #endif
 }
 
-unsigned Document::AddGroup(unsigned start_index, unsigned end_index, const Colour & fill)
+unsigned Document::AddPath(unsigned start_index, unsigned end_index, const Colour & fill)
 {
-       Real xmin = 0; Real ymin = 0; 
-       Real xmax = 0; Real ymax = 0;
-       
-       for (unsigned i = start_index; i <= end_index; ++i)
-       {
-               Rect & objb = m_objects.bounds[i];
-               
-               if (i == start_index || objb.x < xmin)
-                       xmin = objb.x;
-               if (i == start_index || (objb.x+objb.w) > xmax)
-                       xmax = (objb.x+objb.w);
-                       
-               if (i == start_index || objb.y < ymin)
-                       ymin = objb.y;
-               if (i == start_index || (objb.y+objb.h) > ymax)
-                       ymax = (objb.y+objb.h);
-       }
-       
-       Rect bounds(xmin,ymin, xmax-xmin, ymax-ymin);
-       
-       Group group(start_index, end_index, 0U, fill);
-       
-       unsigned data_index = AddGroupData(group);
-       unsigned result = Add(GROUP, bounds,data_index);
+       Path path(m_objects, start_index, end_index, fill);
+       unsigned data_index = AddPathData(path);
+       Rect bounds = path.SolveBounds(m_objects);
+       unsigned result = Add(PATH, bounds,data_index);
        return result;
 }
 
@@ -346,6 +304,12 @@ unsigned Document::AddBezier(const Bezier & bezier)
 {
        Rect bounds = bezier.SolveBounds();
        Bezier data = bezier.ToRelative(bounds); // Relative
+       if (data.ToAbsolute(bounds) != bezier)
+       {
+               Error("%s != %s", data.ToAbsolute(Rect(0,0,1,1)).Str().c_str(),
+                       bezier.Str().c_str());
+               Fatal("ToAbsolute on ToRelative does not give original Bezier");
+       }
        unsigned index = AddBezierData(data);
        return Add(BEZIER, bounds, index);
 }
@@ -364,10 +328,10 @@ unsigned Document::AddBezierData(const Bezier & bezier)
        return m_objects.beziers.size()-1;
 }
 
-unsigned Document::AddGroupData(const Group & group)
+unsigned Document::AddPathData(const Path & path)
 {
-       m_objects.groups.push_back(group);
-       return m_objects.groups.size()-1;
+       m_objects.paths.push_back(path);
+       return m_objects.paths.size()-1;
 }
 
 void Document::DebugDumpObjects()
@@ -603,7 +567,7 @@ void Document::ParseSVGNode(pugi::xml_node & root, SVGMatrix & parent_transform)
                                }
                                
                                        Debug("fill-opacity is %f", Float(c.a));
-                               AddGroup(range.first, range.second, c);
+                               AddPath(range.first, range.second, c);
                        }
                        
                }
@@ -1008,7 +972,7 @@ void Document::AddFontGlyphAtPoint(stbtt_fontinfo *font, int character, Real sca
        
        if (start_index < m_count && end_index < m_count)
        {
-               AddGroup(start_index, end_index);
+               AddPath(start_index, end_index);
        }
        Debug("Added Glyph \"%c\" at %f %f, scale %f", (char)character, Float(x), Float(y), Float(scale));