X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/halibut/blobdiff_plain/c65367738ae7b8bde8c52d01d82a19987bb4941d..3038ce7acdf6ea5f0af267138287b2ae829d1261:/paper.h

diff --git a/paper.h b/paper.h
index 8bb3061..6813fe6 100644
--- a/paper.h
+++ b/paper.h
@@ -8,7 +8,12 @@
 #ifndef HALIBUT_PAPER_H
 #define HALIBUT_PAPER_H
 
+/* Number of internal units per PostScript point. */
+#define UNITS_PER_PT 1000
+#define FUNITS_PER_PT 1000.0
+
 typedef struct document_Tag document;
+typedef struct kern_pair_Tag kern_pair;
 typedef struct font_data_Tag font_data;
 typedef struct font_encoding_Tag font_encoding;
 typedef struct font_list_Tag font_list;
@@ -35,6 +40,16 @@ struct document_Tag {
 };
 
 /*
+ * This data structure represents a kerning pair within a font.
+ */
+struct kern_pair_Tag {
+    /* Glyph indices, in font_data.glyphs. */
+    unsigned short left, right;
+    /* Kern amount, in internal units. */
+    int kern;
+};
+
+/*
  * This data structure represents a particular font.
  */
 struct font_data_Tag {
@@ -50,6 +65,7 @@ struct font_data_Tag {
     int nglyphs;
     const char *const *glyphs;
     const int *widths;
+    tree234 *kerns;
     /*
      * For reasonably speedy lookup, we set up a 65536-element
      * table representing the Unicode BMP (I can conveniently
@@ -276,6 +292,7 @@ struct text_fragment_Tag {
     font_encoding *fe;
     int fontsize;
     char *text;
+    int width;
 };
 
 struct xref_dest_Tag {
@@ -306,5 +323,6 @@ struct outline_element_Tag {
 wchar_t ps_glyph_to_unicode(char const *glyph);
 extern const char *const ps_std_glyphs[];
 const int *ps_std_font_widths(char const *fontname);
+const kern_pair *ps_std_font_kerns(char const *fontname);
 
 #endif