don't show an error window, but just a warning for a partially failed font import

ignore zero-length lines that are part of some font files (prevents problems with Polygon objects)


git-svn-id: https://pycam.svn.sourceforge.net/svnroot/pycam/trunk@852 bbaffbd6-741e-11dd-a85d-61de82d9cad9

src/pycam/Geometry/Letters.py

@@ -50,8 +50,12 @@ class Letter(TransformableContainer):
                 Point(base_point.x + p.x + (p.y * skew / 100.0),
                         base_point.y + p.y, base_point.z)
         for line in self.lines:
-            new_line = Line(get_skewed_point(line.p1),
-                    get_skewed_point(line.p2))
+            skewed_p1 = get_skewed_point(line.p1)
+            skewed_p2 = get_skewed_point(line.p2)
+            # Some triplex fonts contain zero-length lines
+            # (e.g. "/" in italict.cxf). Ignore these.
+            if skewed_p1 != skewed_p2:
+                new_line = Line(skewed_p1, skewed_p2)
                 result.append(new_line)
         return result
 

src/pycam/Importers/CXFImporter.py

@@ -173,7 +173,7 @@ def import_font(filename, callback=None):
     try:
         parsed_font = CXFParser(infile, callback=callback)
     except _CXFParseError, err_msg:
-        log.error("CFXImporter: Skipped font defintion file '%s'. Reason: %s" \
+        log.warn("CFXImporter: Skipped font defintion file '%s'. Reason: %s." \
                 % (filename, err_msg))
         return None
     charset = Charset(**parsed_font.meta)