prepare for the release of rrdtool-1.2.6

[rrdtool.git] / src / rrd_afm.c

diff --git a/src/rrd_afm.c b/src/rrd_afm.c
index 6134036..0e3109c 100644 (file)
--- a/src/rrd_afm.c
+++ b/src/rrd_afm.c
@@ -1,15 +1,27 @@
 /****************************************************************************
- * RRDtool 1.1.x  Copyright Tobias Oetiker, 1997 - 2002
+ * RRDtool 1.2.6  Copyright by Tobi Oetiker, 1997-2005
  ****************************************************************************
  * rrd_afm.h  Parsing afm tables to find width of strings.
  ****************************************************************************/
 
+#if defined(WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
+#include "../confignt/config.h"
+#else
+#include "config.h"
+#endif
+
 #include "rrd_afm.h"
 #include "rrd_afm_data.h"
 
 #include <stdlib.h>
 #include <stdio.h>
 
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+#include "unused.h"
+
 #if 0
 # define DEBUG 1
 # define DLOG(x) fprintf x
@@ -24,7 +36,8 @@
 */
 #define ENABLE_LIGATURES 0
 
-static const afm_fontinfo *afm_last_used_font;
+static const afm_fontinfo *afm_last_used_font = NULL;
+static const char *last_unknown_font = NULL;
 
 #define is_font(p, name) \
   (!strcmp(p->postscript_name, name) || !strcmp(p->fullname, name))
@@ -45,22 +58,47 @@ static const afm_fontinfo *afm_searchfont(const char *name)
   return NULL;
 }
 
+
+/* returns always a font, never NULL.
+   The rest of the code depends on the result never being NULL.
+   See rrd_afm.h */
 static const afm_fontinfo *afm_findfont(const char *name)
 {
   const afm_fontinfo *p = afm_searchfont(name);
   if (p)
     return p;
-  if (1 || DEBUG) fprintf(stderr, "Can't find font '%s'\n", name);
-  p = afm_searchfont("Helvetica");
+  if (!last_unknown_font || strcmp(name, last_unknown_font)) {
+         fprintf(stderr, "Can't find font '%s'\n", name);
+         last_unknown_font = name;
+  }
+  p = afm_searchfont(RRD_AFM_DEFAULT_FONT);
   if (p)
     return p;
-  return NULL;
+  return afm_fontinfolist; /* anything, just anything. */
 }
 
 const char *afm_get_font_postscript_name(const char* font)
 {
   const afm_fontinfo *p = afm_findfont(font);
-  return p ? p->postscript_name : "Helvetica";
+  return p->postscript_name;
+}
+
+const char *afm_get_font_name(const char* font)
+{
+  const afm_fontinfo *p = afm_findfont(font);
+  return p->fullname;
+}
+
+double afm_get_ascender(const char* font, double size)
+{
+  const afm_fontinfo *p = afm_findfont(font);
+  return size * p->ascender / 1000.0;
+}
+
+double afm_get_descender(const char* font, double size)
+{
+  const afm_fontinfo *p = afm_findfont(font);
+  return size * p->descender / 1000.0;
 }
 
 static int afm_find_char_index(const afm_fontinfo *fontinfo,
@@ -149,8 +187,8 @@ static long afm_find_kern(const afm_fontinfo *fontinfo,
 }
 
 /* measure width of a text string */
-double afm_get_text_width ( double start, const char* font, double size,
-          double tabwidth, const char* text)
+double afm_get_text_width ( double UNUSED(start), const char* font, double size,
+          double UNUSED(tabwidth), const char* text)
 {
   const afm_fontinfo *fontinfo = afm_findfont(font);
   long width = 0;
@@ -201,21 +239,21 @@ double afm_get_text_width ( double start, const char* font, double size,
 
 #ifdef __APPLE__
 const unsigned char afm_mac2iso[128] = {
-  '\xC4', '\xC5', '\xC7', '\xC9', '\xD1', '\xD6', '\xDC', '\xE1', // 80
-  '\xE0', '\xE2', '\xE4', '\xE3', '\xE5', '\xE7', '\xE9', '\xE8', // 88
-  '\xEA', '\xEB', '\xED', '\xEC', '\xEE', '\xEF', '\xF1', '\xF3', // 90
-  '\xF2', '\xF4', '\xF6', '\xF5', '\xFA', '\xF9', '\xFB', '\xFC', // 98
-  '\xDD', '\xB0', '\xA2', '\xA3', '\xA7', ' ',    '\xB6', '\xDF', // A0
-  '\xAE', '\xA9', ' ',    '\xB4', '\xA8', ' ',    '\xC6', '\xD8', // A8
-  ' ',    '\xB1', '\xBE', ' ',    '\xA5', '\xB5', ' ',    ' ',    // B0
-  '\xBD', '\xBC', ' ',    '\xAA', '\xBA', ' ',    '\xE6', '\xF8', // B8
-  '\xBF', '\xA1', '\xAC', ' ',    ' ',    ' ',    ' ',    '\xAB', // C0
-  '\xBB', ' ',    '\xA0', '\xC0', '\xC3', '\xD5', ' ',    '\xA6', // C8
-  '\xAD', ' ',    '"',    '"',    '\'',   '\'',   '\xF7', '\xD7', // D0
-  '\xFF', ' ',    ' ',    '\xA4', '\xD0', '\xF0', '\xDE', '\xFE', // D8
-  '\xFD', '\xB7', ' ',    ' ',    ' ',    '\xC2', '\xCA', '\xC1', // E0
-  '\xCB', '\xC8', '\xCD', '\xCE', '\xCF', '\xCC', '\xD3', '\xD4', // E8
-  ' ',    '\xD2', '\xDA', '\xDB', '\xD9', ' ',    ' ',    ' ',    // F0
-  '\xAF', ' ',    ' ',    ' ',    '\xB8', ' ',    ' ',    ' ',    // F8
+  '\xC4', '\xC5', '\xC7', '\xC9', '\xD1', '\xD6', '\xDC', '\xE1', /* 80 */
+  '\xE0', '\xE2', '\xE4', '\xE3', '\xE5', '\xE7', '\xE9', '\xE8', /* 88 */
+  '\xEA', '\xEB', '\xED', '\xEC', '\xEE', '\xEF', '\xF1', '\xF3', /* 90 */
+  '\xF2', '\xF4', '\xF6', '\xF5', '\xFA', '\xF9', '\xFB', '\xFC', /* 98 */
+  '\xDD', '\xB0', '\xA2', '\xA3', '\xA7', ' ',    '\xB6', '\xDF', /* A0 */
+  '\xAE', '\xA9', ' ',    '\xB4', '\xA8', ' ',    '\xC6', '\xD8', /* A8 */
+  ' ',    '\xB1', '\xBE', ' ',    '\xA5', '\xB5', ' ',    ' ',    /* B0 */
+  '\xBD', '\xBC', ' ',    '\xAA', '\xBA', ' ',    '\xE6', '\xF8', /* B8 */
+  '\xBF', '\xA1', '\xAC', ' ',    ' ',    ' ',    ' ',    '\xAB', /* C0 */
+  '\xBB', ' ',    '\xA0', '\xC0', '\xC3', '\xD5', ' ',    '\xA6', /* C8 */
+  '\xAD', ' ',    '"',    '"',    '\'',   '\'',   '\xF7', '\xD7', /* D0 */
+  '\xFF', ' ',    ' ',    '\xA4', '\xD0', '\xF0', '\xDE', '\xFE', /* D8 */
+  '\xFD', '\xB7', ' ',    ' ',    ' ',    '\xC2', '\xCA', '\xC1', /* E0 */
+  '\xCB', '\xC8', '\xCD', '\xCE', '\xCF', '\xCC', '\xD3', '\xD4', /* E8 */
+  ' ',    '\xD2', '\xDA', '\xDB', '\xD9', ' ',    ' ',    ' ',    /* F0 */
+  '\xAF', ' ',    ' ',    ' ',    '\xB8', ' ',    ' ',    ' ',    /* F8 */
 };
 #endif