+
+void Document::AddFontGlyphAtPoint(stbtt_fontinfo *font, int character, Real scale, Real x, Real y)
+{
+ int glyph_index = stbtt_FindGlyphIndex(font, character);
+
+ // Check if there is actully a glyph to render.
+ if (stbtt_IsGlyphEmpty(font, glyph_index))
+ {
+ return;
+ }
+
+ stbtt_vertex *instructions;
+ int num_instructions = stbtt_GetGlyphShape(font, glyph_index, &instructions);
+
+ Real current_x(0), current_y(0);
+ unsigned start_index = m_count;
+ unsigned end_index = m_count;
+ for (int i = 0; i < num_instructions; ++i)
+ {
+ // TTF uses 16-bit signed ints for coordinates:
+ // with the y-axis inverted compared to us.
+ // Convert and scale any data.
+ Real inst_x = Real(instructions[i].x)*scale;
+ Real inst_y = Real(instructions[i].y)*-scale;
+ Real inst_cx = Real(instructions[i].cx)*scale;
+ Real inst_cy = Real(instructions[i].cy)*-scale;
+ Real old_x(current_x), old_y(current_y);
+ current_x = inst_x;
+ current_y = inst_y;
+
+ switch(instructions[i].type)
+ {
+ // Move To
+ case STBTT_vmove:
+ break;
+ // Line To
+ case STBTT_vline:
+ end_index = AddBezier(Bezier(old_x + x, old_y + y, old_x + x, old_y + y, current_x + x, current_y + y, current_x + x, current_y + y));
+ break;
+ // Quadratic Bezier To:
+ case STBTT_vcurve:
+ // Quadratic -> Cubic:
+ // - Endpoints are the same.
+ // - cubic1 = quad0+(2/3)*(quad1-quad0)
+ // - cubic2 = quad2+(2/3)*(quad1-quad2)
+ end_index = AddBezier(Bezier(old_x + x, old_y + y, old_x + Real(2)*(inst_cx-old_x)/Real(3) + x, old_y + Real(2)*(inst_cy-old_y)/Real(3) + y,
+ current_x + Real(2)*(inst_cx-current_x)/Real(3) + x, current_y + Real(2)*(inst_cy-current_y)/Real(3) + y, current_x + x, current_y + y));
+ break;
+ }
+ }
+
+ if (start_index < m_count && end_index < m_count)
+ {
+ AddPath(start_index, end_index);
+ }
+ //Debug("Added Glyph \"%c\" at %f %f, scale %f", (char)character, Float(x), Float(y), Float(scale));
+
+ stbtt_FreeShape(font, instructions);
+}
+
+void Document::TransformObjectBounds(const SVGMatrix & transform)
+{
+ for (unsigned i = 0; i < m_count; ++i)
+ {
+ TransformXYPair(m_objects.bounds[i].x, m_objects.bounds[i].y, transform);
+ m_objects.bounds[i].w *= transform.a;
+ m_objects.bounds[i].h *= transform.d;
+ }
+}
+
+void Document::TranslateObjects(const Real & dx, const Real & dy, ObjectType type)
+{
+ #ifdef TRANSFORM_BEZIERS_TO_PATH
+ for (unsigned i = 0; i < m_objects.paths.size(); ++i)
+ {
+ Path & p = m_objects.paths[i];
+ p.m_bounds.x += dx;
+ p.m_bounds.y += dy;
+ }
+ return;
+ #endif
+
+ for (unsigned i = 0; i < m_count; ++i)
+ {
+ if (type == NUMBER_OF_OBJECT_TYPES || m_objects.types[i] == type)
+ {
+ m_objects.bounds[i].x += dx;
+ m_objects.bounds[i].y += dy;
+ }
+ }
+}
+
+void Document::ScaleObjectsAboutPoint(const Real & x, const Real & y, const Real & scale_amount, ObjectType type)
+{
+ #ifdef TRANSFORM_BEZIERS_TO_PATH
+ for (unsigned i = 0; i < m_objects.paths.size(); ++i)
+ {
+ Path & p = m_objects.paths[i];
+ p.m_bounds.w /= scale_amount;
+ p.m_bounds.h /= scale_amount;
+ p.m_bounds.x -= x;
+ p.m_bounds.x /= scale_amount;
+ p.m_bounds.x += x;
+ p.m_bounds.y -= y;
+ p.m_bounds.y /= scale_amount;
+ p.m_bounds.y += y;
+ }
+ return;
+ #endif
+
+ for (unsigned i = 0; i < m_count; ++i)
+ {
+ if (type != NUMBER_OF_OBJECT_TYPES && m_objects.types[i] != type)
+ continue;
+
+ m_objects.bounds[i].w /= scale_amount;
+ m_objects.bounds[i].h /= scale_amount;
+ //m_objects.bounds[i].x = x + (m_objects.bounds[i].x-x)/scale_amount;
+ //m_objects.bounds[i].y = y + (m_objects.bounds[i].y-x)/scale_amount;
+ m_objects.bounds[i].x -= x;
+ m_objects.bounds[i].x /= scale_amount;
+ m_objects.bounds[i].x += x;
+
+ m_objects.bounds[i].y -= y;
+ m_objects.bounds[i].y /= scale_amount;
+ m_objects.bounds[i].y += y;
+ }
+
+}
+
+