Added a new config directive `html-local-head', which permits me to

[sgt/halibut] / paper.h

diff --git a/paper.h b/paper.h
index 160bff5..6813fe6 100644 (file)
--- 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
@@ -149,10 +165,20 @@ struct para_data_Tag {
        RECT_NONE, RECT_CHAPTER_UNDERLINE, RECT_RULE
     } rect_type;
     /*
+     * We left- and right-justify in special circumstances.
+     */
+    enum {
+       JUST, LEFT, RIGHT
+    } justification;
+    /*
      * For constructing the page outline.
      */
     int outline_level;                /* 0=title 1=C 2=H 3=S 4=S2... */
     wchar_t *outline_title;
+    /*
+     * For adding the page number of a contents entry afterwards.
+     */
+    paragraph *contents_entry;
 };
 
 struct line_data_Tag {
@@ -179,6 +205,7 @@ struct line_data_Tag {
     word *end;
     int xpos;
     int hshortfall, nspaces;          /* for justifying paragraphs */
+    int real_shortfall;
     /*
      * Auxiliary text: a section number in a margin, or a list item
      * bullet or number. Also mention where to display this text
@@ -205,9 +232,9 @@ struct line_data_Tag {
     /*
      * These fields are used in the page breaking algorithm.
      */
-    int bestcost;
-    int vshortfall, text, space;
-    line_data *page_last;             /* last line on a page starting here */
+    int *bestcost;
+    int *vshortfall, *text, *space;
+    line_data **page_last;            /* last line on a page starting here */
     /*
      * After page breaking, we can assign an actual y-coordinate on
      * the page to each line. Also we store a pointer back to the
@@ -250,6 +277,10 @@ struct page_data_Tag {
     rect *first_rect;
     rect *last_rect;
     /*
+     * The page number, as a string.
+     */
+    wchar_t *number;
+    /*
      * This spare pointer field is for use by the client backends.
      */
     void *spare;
@@ -261,6 +292,7 @@ struct text_fragment_Tag {
     font_encoding *fe;
     int fontsize;
     char *text;
+    int width;
 };
 
 struct xref_dest_Tag {
@@ -291,5 +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