support bdf version 2.2

PIL/BdfFontFile.py

@@ -17,6 +17,7 @@
 # See the README file for information on usage and redistribution.
 #
 
+
 from PIL import Image
 from PIL import FontFile
 
@@ -41,75 +42,33 @@ bdf_spacing = {
 }
 
 
-def bdf_char(f):
-    # skip to STARTCHAR
-    while True:
-        s = f.readline()
-        if not s:
-            return None
-        if s[:9] == b"STARTCHAR":
-            break
-    id = s[9:].strip().decode('ascii')
-
-    # load symbol properties
-    props = {}
-    while True:
-        s = f.readline()
-        if not s or s[:6] == b"BITMAP":
-            break
-        i = s.find(b" ")
-        props[s[:i].decode('ascii')] = s[i+1:-1].decode('ascii')
-
-    # load bitmap
-    bitmap = []
-    while True:
-        s = f.readline()
-        if not s or s[:7] == b"ENDCHAR":
-            break
-        bitmap.append(s[:-1])
-    bitmap = b"".join(bitmap)
-
-    [x, y, l, d] = [int(s) for s in props["BBX"].split()]
-    [dx, dy] = [int(s) for s in props["DWIDTH"].split()]
-
-    bbox = (dx, dy), (l, -d-y, x+l, -d), (0, 0, x, y)
-
-    try:
-        im = Image.frombytes("1", (x, y), bitmap, "hex", "1")
-    except ValueError:
-        # deal with zero-width characters
-        im = Image.new("1", (x, y))
-
-    return id, int(props["ENCODING"]), bbox, im
-
-
 ##
 # Font file plugin for the X11 BDF format.
 
 class BdfFontFile(FontFile.FontFile):
-
+    props = {}
+    comments = []       
     def __init__(self, fp):
-
+      
         FontFile.FontFile.__init__(self)
-
+        self.glyph = [None] * 65536
         s = fp.readline()
-        if s[:13] != b"STARTFONT 2.1":
+        if s[:13] != b"STARTFONT 2.1" and s[:13] != b"STARTFONT 2.2":
             raise SyntaxError("not a valid BDF file")
 
-        props = {}
-        comments = []
+
 
         while True:
             s = fp.readline()
             if not s or s[:13] == b"ENDPROPERTIES":
                 break
             i = s.find(b" ")
-            props[s[:i].decode('ascii')] = s[i+1:-1].decode('ascii')
+            self.props[s[:i].decode('ascii')] = s[i+1:-1].decode('ascii')
             if s[:i] in [b"COMMENT", b"COPYRIGHT"]:
                 if s.find(b"LogicalFontDescription") < 0:
-                    comments.append(s[i+1:-1].decode('ascii'))
+                    self.comments.append(s[i+1:-1].decode('ascii'))
 
-        font = props["FONT"].split("-")
+        font = self.props["FONT"].split("-")
 
         font[4] = bdf_slant[font[4].upper()]
         font[11] = bdf_spacing[font[11].upper()]
@@ -125,9 +84,57 @@ class BdfFontFile(FontFile.FontFile):
 
         font = []
         while True:
-            c = bdf_char(fp)
+            c = self.bdf_char(fp)
             if not c:
                 break
             id, ch, (xy, dst, src), im = c
             if 0 <= ch < len(self.glyph):
                 self.glyph[ch] = xy, dst, src, im
+
+
+
+
+    def bdf_char(self,f):
+        # skip to STARTCHAR
+        while True:
+            s = f.readline()
+            if not s:
+                return None
+            if s[:9] == b"STARTCHAR":
+                break
+        id = s[9:].strip().decode('ascii')
+
+        # load symbol properties
+        props = {}
+        while True:
+            s = f.readline()
+            if not s or s[:6] == b"BITMAP":
+                break
+            i = s.find(b" ")
+            props[s[:i].decode('ascii')] = s[i+1:-1].decode('ascii')
+
+        # load bitmap
+        bitmap = []
+        while True:
+            s = f.readline()
+            if not s or s[:7] == b"ENDCHAR":
+                break
+            bitmap.append(s[:-1])
+        bitmap = b"".join(bitmap)
+
+        [x, y, l, d] = [int(s) for s in props["BBX"].split()]
+        if props.has_key("DWIDTH"):
+            [dx, dy] = [int(s) for s in props["DWIDTH"].split()]
+        else:
+            [dx, dy] = [int(s) for s in self.props["DWIDTH"].split()]
+
+        bbox = (dx, dy), (l, -d-y, x+l, -d), (0, 0, x, y)
+
+        try:
+            im = Image.frombytes("1", (x, y), bitmap, "hex", "1")
+        except ValueError:
+            # deal with zero-width characters
+            im = Image.new("1", (x, y))
+
+        return id, int(props["ENCODING"]), bbox, im
+