added kerning to fonts

[swftools.git] / lib / ruby / gfx.c

diff --git a/lib/ruby/gfx.c b/lib/ruby/gfx.c
index 958ce40..9384d19 100644 (file)
--- a/lib/ruby/gfx.c
+++ b/lib/ruby/gfx.c
@@ -347,6 +347,23 @@ static VALUE font_glyphs(VALUE cls)
     return font->glyph_array;
 }
 
+static VALUE font_kerning(VALUE cls)
+{
+    Get_Font(font,cls);
+    gfxkerning_t*kerning = font->font->kerning;
+    int kerning_size = font->font->kerning_size;
+    volatile VALUE a = rb_ary_new2(kerning_size);
+    int t;
+    for(t=0;t<kerning_size;t++) {
+       volatile VALUE tuple = rb_ary_new2(3);
+       rb_ary_store(tuple, 0, INT2FIX(kerning[t].c1));
+       rb_ary_store(tuple, 1, INT2FIX(kerning[t].c2));
+       rb_ary_store(tuple, 2, INT2FIX(kerning[t].advance));
+       rb_ary_store(a, t, tuple);
+    }
+    return a;
+}
+
 // ------------------------ gfx device --------------------------------------
 
 typedef struct device_internal {
@@ -666,6 +683,8 @@ void Init_gfx()
     rb_define_method(Font, "ascent", font_ascent, 0);
     rb_define_method(Font, "descent", font_descent, 0);
     rb_define_method(Font, "glyphs", font_glyphs, 0);
+    rb_define_method(Font, "kerning", font_kerning, 0);
+    rb_define_method(Font, "get_kerning_table", font_kerning, 0);
     
     Device = rb_define_class_under(GFX, "Device", rb_cObject);
     rb_define_method(Device, "startpage", noop, -1);