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git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@1 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 75 insertions, 0 deletions

diff --git a/lib/pbmfont.h b/lib/pbmfont.h
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+++ b/lib/pbmfont.h
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+/* pbmfont.h - header file for font routines in libpbm
+*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#if 0
+} /* to fake out automatic code indenters */
+#endif
+
+struct glyph {
+    /* A glyph consists of white borders and the "central glyph" which
+       can be anything, but normally does not have white borders because
+       it's more efficient to represent white borders explicitly.
+    */
+	int width, height;
+        /* The dimensions of the central glyph, i.e. the 'bmap' array */
+	int x;
+        /* Width in pixels of the white left border of this glyph.
+           This can actually be negative to indicate that the central
+           glyph backs up over the previous character in the line.  In
+           that case, if there is no previous character in the line, it
+           is as if 'x' is 0.
+        */
+    int y;
+        /* Height in pixels of the white bottom border of this glyph */
+	int xadd;
+        /* Width of glyph -- white left border plus central glyph
+           plus white right border
+        */
+	const char * bmap;
+        /* The raster of the central glyph.  It is an 'width' by
+           'height' array in row major order, with each byte being 1
+           for black; 0 for white.  E.g. if 'width' is 20 pixels and
+           'height' is 40 pixels and it's a rectangle that is black on
+           the top half and white on the bottom, this is an array of
+           800 bytes, with the first 400 having value 0x01 and the
+           last 400 having value 0x00.
+        */
+};
+
+struct font {
+    /* This describes a combination of font and character set.  Given
+       an code point in the range 0..255, this structure describes the
+       glyph for that character.
+    */
+	int maxwidth, maxheight;
+	int x;
+        /* ?? Not used by Pbmtext */
+    int y;
+        /* Amount of white space that should be added between lines of
+           this font.
+        */
+	struct glyph * glyph[256];
+        /* glyph[i] is the glyph for code point i */
+	bit** oldfont;
+	    /* for compatibility with old pbmtext routines */
+	    /* oldfont is 0 if the font is BDF derived */
+	int fcols, frows;
+};
+
+struct font* pbm_defaultfont(const char* const which);
+struct font*
+pbm_dissectfont(bit ** const font,
+                int    const frows,
+                int    const fcols);
+struct font* pbm_loadfont(const char * const filename);
+struct font* pbm_loadpbmfont(const char * const filename);
+struct font* pbm_loadbdffont(const char * const filename);
+void pbm_dumpfont ARGS(( struct font* fn ));
+int mk_argvn ARGS(( char* s, char* vec[], int max ));
+
+#ifdef __cplusplus
+}
+#endif