#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;
typedef struct page_data_Tag page_data;
typedef struct subfont_map_entry_Tag subfont_map_entry;
typedef struct text_fragment_Tag text_fragment;
+typedef struct xref_Tag xref;
+typedef struct xref_dest_Tag xref_dest;
+typedef struct rect_Tag rect;
+typedef struct outline_element_Tag outline_element;
/*
* This data structure represents the overall document, in the form
int paper_width, paper_height;
font_list *fonts;
page_data *pages;
+ outline_element *outline_elements;
+ int n_outline_elements;
+};
+
+/*
+ * 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;
};
/*
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
*/
struct para_data_Tag {
+ para_data *next;
/*
* Data about the fonts used in this paragraph. Indices are the
* FONT_* constants defined above.
*/
line_data *first; /* first line in paragraph */
line_data *last; /* last line in paragraph */
+ /*
+ * Some paragraphs have associated graphics; currently this is
+ * nothing more complex than a single black rectangle.
+ */
+ enum {
+ 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 {
* its starting x position, and by how much the width of spaces
* needs to be adjusted for paragraph justification.
*
- * (`last' may be NULL if it's more convenient.)
+ * (Unlike most of the `last' pointers defined in this file,
+ * this `end' pointer points to the word _after_ the last one
+ * that should be displayed on the line. This is how it's
+ * returned from wrap_para().)
*/
word *first;
- word *last;
+ word *end;
int xpos;
- int space_adjust; /* for justifying paragraphs */
+ 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
* relative to the left margin.
*/
word *aux_text;
+ word *aux_text_2;
int aux_left_indent;
/*
* This line might have a non-negotiable page break before it.
int space_after;
int line_height;
/*
+ * Penalties for page breaking before or after this line.
+ */
+ int penalty_before, penalty_after;
+ /*
* These fields are used in the page breaking algorithm.
*/
- int bestcost;
- int shortfall, 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
text_fragment *first_text;
text_fragment *last_text;
/*
+ * Cross-references.
+ */
+ xref *first_xref;
+ xref *last_xref;
+ /*
+ * Rectangles to be drawn. (These are currently only used for
+ * underlining chapter titles and drawing horizontal rules.)
+ */
+ 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;
font_encoding *fe;
int fontsize;
char *text;
+ int width;
+};
+
+struct xref_dest_Tag {
+ enum { NONE, PAGE, URL } type;
+ page_data *page;
+ char *url;
+};
+
+struct xref_Tag {
+ xref *next;
+ int lx, rx, ty, by;
+ xref_dest dest;
+};
+
+struct rect_Tag {
+ rect *next;
+ int x, y, w, h;
+};
+
+struct outline_element_Tag {
+ int level; /* 0=title 1=C 2=H 3=S 4=S2... */
+ para_data *pdata;
};
/*
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