If the requested font cannot be found, return the default font

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3823 42af7a65-404d-4744-a932-0658087f49c3

graphics/nxfonts/nxfonts_getfont.c

@@ -179,7 +179,8 @@ static inline FAR const struct nx_fontset_s *
 NXHANDLE nxf_getfonthandle(enum nx_fontid_e fontid)
 {
   FAR const struct nx_fontpackage_s **pkglist;
-  FAR const struct nx_fontpackage_s *package;
+  FAR const struct nx_fontpackage_s  *package;
+  FAR const struct nx_fontpackage_s  *defpkg = NULL;
 
   /* Handle the default font package */
 
@@ -192,14 +193,31 @@ NXHANDLE nxf_getfonthandle(enum nx_fontid_e fontid)
 
   for (pkglist = g_fontpackages; *pkglist; pkglist++)
     {
+      /* Is this the package with the matching font ID? */
+
       package = *pkglist;
       if (package->id == fontid)
         {
+          /* Yes.. return a pointer to the package as the handle */
+
           return (NXHANDLE)package;
         }
+ 
+      /* No.. is it the default font? */
+
+      else if (package->id == NXFONT_DEFAULT)
+        {
+          /* Yes.. save the pointer to the default font.  We will return the
+           * default font if the requested font cannot be found.
+           */
+
+          defpkg = package;
+        }
     }
 
-  return (NXHANDLE)NULL;
+  /* Return a pointer to the default font as the handle. */
+
+  return (NXHANDLE)defpkg;
 }
 
 /****************************************************************************

graphics/nxfonts/nxfonts_sans28x37b.h

@@ -621,7 +621,7 @@
 #define NXFONT_METRICS_205 {1, 6, 24, 1, 5, 0}
 #define NXFONT_BITMAP_205 {0x1c, 0x38, 0x70, 0xe0, 0x0, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70}
 
-/* Icircumflex (206) */
+/* Icircumflex (206) - NOTE: Xoffset should be -1, not 0. */
 #define NXFONT_METRICS_206 {2, 9, 24, 0, 5, 0}
 #define NXFONT_BITMAP_206 {0x1c, 0x0, 0x3e, 0x0, 0x77, 0x0, 0xe3, 0x80, 0x0, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0}
 
@@ -629,7 +629,7 @@
 #define NXFONT_METRICS_207 {1, 7, 23, 0, 6, 0}
 #define NXFONT_BITMAP_207 {0xee, 0xee, 0x0, 0x0, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38}
 
-/* Eth (208) */
+/* Eth (208) - NOTE: Xoffset should be -1, not 0. */
 #define NXFONT_METRICS_208 {3, 19, 19, 0, 10, 0}
 #define NXFONT_BITMAP_208 {0x1f, 0xfc, 0x0, 0x1f, 0xff, 0x0, 0x1c, 0xf, 0x80, 0x1c, 0x3, 0xc0, 0x1c, 0x1, 0xc0, 0x1c, 0x1, 0xe0, 0x1c, 0x0, 0xe0, 0x1c, 0x0, 0xe0, 0xff, 0xc0, 0xe0, 0xff, 0xc0, 0xe0, 0x1c, 0x0, 0xe0, 0x1c, 0x0, 0xe0, 0x1c, 0x0, 0xe0, 0x1c, 0x1, 0xe0, 0x1c, 0x1, 0xc0, 0x1c, 0x3, 0xc0, 0x1c, 0xf, 0x80, 0x1f, 0xff, 0x0, 0x1f, 0xfc, 0x0}
 
@@ -749,7 +749,7 @@
 #define NXFONT_METRICS_237 {1, 6, 19, 1, 10, 0}
 #define NXFONT_BITMAP_237 {0x1c, 0x38, 0x70, 0xe0, 0x0, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70}
 
-/* icircumflex (238) */
+/* icircumflex (238) - NOTE: Xoffset should be -1, not 0. */
 #define NXFONT_METRICS_238 {2, 9, 19, 0, 10, 0}
 #define NXFONT_BITMAP_238 {0x1c, 0x0, 0x3e, 0x0, 0x77, 0x0, 0xe3, 0x80, 0x0, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0, 0x1c, 0x0}
 

graphics/nxfonts/nxfonts_sans40x49b.h

@@ -629,7 +629,7 @@
 #define NXFONT_METRICS_207 {2, 10, 31, 0, 6, 0}
 #define NXFONT_BITMAP_207 {0xf3, 0xc0, 0xf3, 0xc0, 0xf3, 0xc0, 0xf3, 0xc0, 0x0, 0x0, 0x0, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0, 0x3e, 0x0}
 
-/* Eth (208) */
+/* Eth (208) -- NOTE: Xoffset should be -1, not 0. */
 #define NXFONT_METRICS_208 {3, 23, 25, 0, 12, 0}
 #define NXFONT_BITMAP_208 {0x1f, 0xff, 0x80, 0x1f, 0xff, 0xe0, 0x1f, 0xff, 0xf0, 0x1f, 0xff, 0xf8, 0x1f, 0x7, 0xf8, 0x1f, 0x0, 0xfc, 0x1f, 0x0, 0xfc, 0x1f, 0x0, 0x7c, 0x1f, 0x0, 0x7e, 0x1f, 0x0, 0x3e, 0x1f, 0x0, 0x3e, 0xff, 0xf0, 0x3e, 0xff, 0xf0, 0x3e, 0xff, 0xf0, 0x3e, 0x1f, 0x0, 0x3e, 0x1f, 0x0, 0x3e, 0x1f, 0x0, 0x7c, 0x1f, 0x0, 0x7c, 0x1f, 0x0, 0x7c, 0x1f, 0x0, 0xf8, 0x1f, 0x3, 0xf8, 0x1f, 0xff, 0xf0, 0x1f, 0xff, 0xf0, 0x1f, 0xff, 0xc0, 0x1f, 0xff, 0x80}
 
@@ -749,11 +749,11 @@
 #define NXFONT_METRICS_237 {1, 6, 25, 2, 12, 0}
 #define NXFONT_BITMAP_237 {0x3c, 0x38, 0x70, 0x70, 0xe0, 0x0, 0x0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0}
 
-/* icircumflex (238) */
+/* icircumflex (238) -- NOTE: Xoffset should be -1, not 0. */
 #define NXFONT_METRICS_238 {2, 10, 25, 0, 12, 0}
 #define NXFONT_BITMAP_238 {0xc, 0x0, 0x1e, 0x0, 0x3f, 0x0, 0x73, 0x80, 0xe1, 0xc0, 0x0, 0x0, 0x0, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0}
 
-/* idieresis (239) */
+/* idieresis (239) - NOTE: Xoffset should be -1, not 0. */
 #define NXFONT_METRICS_239 {2, 10, 24, 0, 13, 0}
 #define NXFONT_BITMAP_239 {0xf3, 0xc0, 0xf3, 0xc0, 0xf3, 0xc0, 0xf3, 0xc0, 0x0, 0x0, 0x0, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0, 0x1e, 0x0}
 
@@ -789,7 +789,7 @@
 #define NXFONT_METRICS_247 {2, 16, 16, 1, 21, 0}
 #define NXFONT_BITMAP_247 {0x3, 0xc0, 0x3, 0xc0, 0x3, 0xc0, 0x3, 0xc0, 0x0, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0, 0x0, 0x0, 0x0, 0x3, 0xc0, 0x3, 0xc0, 0x3, 0xc0, 0x3, 0xc0}
 
-/* oslash (248) */
+/* oslash (248) - NOTE: Xoffset should be -1, not 0. */
 #define NXFONT_METRICS_248 {3, 21, 18, 0, 19, 0}
 #define NXFONT_BITMAP_248 {0x1, 0xfc, 0x38, 0x7, 0xff, 0x70, 0xf, 0xff, 0xe0, 0x1f, 0xff, 0xc0, 0x1f, 0x8f, 0xc0, 0x3e, 0x7, 0xe0, 0x3e, 0xf, 0xe0, 0x3c, 0x1d, 0xe0, 0x3c, 0x39, 0xe0, 0x3c, 0x71, 0xe0, 0x3e, 0xe3, 0xe0, 0x3f, 0x83, 0xe0, 0x3f, 0x7, 0xe0, 0x1f, 0x8f, 0xc0, 0x1f, 0xff, 0xc0, 0x3f, 0xff, 0x80, 0x77, 0xff, 0x0, 0xe1, 0xfc, 0x0}
 

graphics/nxfonts/nxfonts_serif27x38b.h

@@ -357,7 +357,7 @@
 #define NXFONT_METRICS_105 {1, 5, 17, 1, 11, 0}
 #define NXFONT_BITMAP_105 {0x70, 0x70, 0x70, 0x0, 0x0, 0xf0, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0xf8}
 
-/* j (106) */
+/* j (106) - NOTE: Xoffset should be -1, not 0. */
 #define NXFONT_METRICS_106 {1, 7, 22, 0, 11, 0}
 #define NXFONT_BITMAP_106 {0xe, 0xe, 0xe, 0x0, 0x0, 0x1e, 0xe, 0xe, 0xe, 0xe, 0xe, 0xe, 0xe, 0xe, 0xe, 0xe, 0xe, 0xe, 0xce, 0xce, 0xcc, 0x78}
 

graphics/nxfonts/nxfonts_serif29x37.h

@@ -357,7 +357,7 @@
 #define NXFONT_METRICS_105 {1, 4, 17, 1, 11, 0}
 #define NXFONT_BITMAP_105 {0x60, 0x60, 0x0, 0x0, 0x0, 0x60, 0xe0, 0x60, 0x60, 0x60, 0x60, 0x60, 0x60, 0x60, 0x60, 0x60, 0xf0}
 
-/* j (106) */
+/* j (106) - NOTE: Xoffset should be -2, not 0. */
 #define NXFONT_METRICS_106 {1, 6, 23, 0, 11, 0}
 #define NXFONT_BITMAP_106 {0xc, 0xc, 0x0, 0x0, 0x0, 0xc, 0x1c, 0xc, 0xc, 0xc, 0xc, 0xc, 0xc, 0xc, 0xc, 0xc, 0xc, 0xc, 0xc, 0xc, 0xcc, 0xc8, 0x70}