#include <cstdio>
#include <fstream>
+#include "stb_truetype.h"
+
using namespace IPDF;
using namespace std;
{
x[3] = x[2];
y[3] = y[2];
+ Real old_x1(x[1]), old_y1(y[1]);
+ x[1] = x[0] + Real(2) * (old_x1 - x[0])/ Real(3);
+ y[1] = y[0] + Real(2) * (old_y1 - y[0])/ Real(3);
+ x[2] = x[3] + Real(2) * (old_x1 - x[3])/ Real(3);
+ y[2] = y[3] + Real(2) * (old_y1 - y[3])/ Real(3);
}
unsigned index = AddBezierData(Bezier(x[0],y[0],x[1],y[1],x[2],y[2],x[3],y[3]));
assert(GetToken(d,token,i) == ",");
Real dy = strtod(GetToken(d,token,i).c_str(),NULL) / bounds.h;
- x[1] = (relative) ? x0 + dx : dx;
- y[1] = (relative) ? y0 + dy : dy;
+ x[1] = (relative) ? x[0] + dx : dx;
+ y[1] = (relative) ? y[0] + dy : dy;
x[2] = x[1];
y[2] = y[1];
prev_i = i;
}
}
+
+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);
+
+ 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;
+ unsigned bezier_index;
+ switch(instructions[i].type)
+ {
+ // Move To
+ case STBTT_vmove:
+ break;
+ // Line To
+ case STBTT_vline:
+ bezier_index = AddBezierData(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));
+ Add(BEZIER,Rect(0,0,1,1),bezier_index);
+ 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)
+ bezier_index = AddBezierData(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));
+ Add(BEZIER,Rect(0,0,1,1),bezier_index);
+ break;
+ }
+ }
+
+ stbtt_FreeShape(font, instructions);
+}