prepare for the release of rrdtool-1.2.9

[rrdtool.git] / src / rrd_afm.c

diff --git a/src/rrd_afm.c b/src/rrd_afm.c
index 2cb7e85..2a2ec6c 100644 (file)
--- a/src/rrd_afm.c
+++ b/src/rrd_afm.c
@@ -1,10 +1,10 @@
 /****************************************************************************
- * RRDtool 1.2rc2  Copyright by Tobi Oetiker, 1997-2005
+ * RRDtool 1.2.9  Copyright by Tobi Oetiker, 1997-2005
  ****************************************************************************
  * rrd_afm.h  Parsing afm tables to find width of strings.
  ****************************************************************************/
 
-#ifdef WIN32
+#if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
 #include "../confignt/config.h"
 #else
 #include "config.h"
@@ -20,6 +20,8 @@
 #include <string.h>
 #endif
 
+#include "unused.h"
+
 #if 0
 # define DEBUG 1
 # define DLOG(x) fprintf x
@@ -34,7 +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))
@@ -55,22 +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,
@@ -159,8 +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;