implemented case-insensitive file patterns for GTK FileChooserDialog

git-svn-id: https://pycam.svn.sourceforge.net/svnroot/pycam/trunk@1217 bbaffbd6-741e-11dd-a85d-61de82d9cad9

src/pycam/Gui/Project.py

@@ -587,10 +587,15 @@ class ProjectGui(object):
             recent_files_menu = gtk.RecentChooserMenu(self.recent_manager)
             recent_files_menu.set_name("RecentFilesMenu")
             recent_menu_filter = gtk.RecentFilter()
-            for filter_name, filter_patterns in FILTER_MODEL:
-                if not isinstance(filter_patterns, (list, set, tuple)):
-                    filter_patterns = [filter_patterns]
-                for pattern in filter_patterns:
+            case_converter = pycam.Utils.get_case_insensitive_file_pattern
+            for filter_name, patterns in FILTER_MODEL:
+                if not isinstance(patterns, (list, set, tuple)):
+                    patterns = [patterns]
+                # convert it into a mutable list (instead of set/tuple)
+                patterns = list(patterns)
+                for index in range(len(patterns)):
+                    patterns[index] = case_converter(patterns[index])
+                for pattern in patterns:
                     recent_menu_filter.add_pattern(pattern)
             recent_files_menu.add_filter(recent_menu_filter)
             recent_files_menu.set_show_numbers(True)
@@ -600,7 +605,8 @@ class ProjectGui(object):
             recent_files_menu.set_sort_type(gtk.RECENT_SORT_MRU)
             # show only ten files
             recent_files_menu.set_limit(10)
-            uimanager.get_widget("/MenuBar/FileMenu/OpenRecentModelMenu").set_submenu(recent_files_menu)
+            uimanager.get_widget("/MenuBar/FileMenu/OpenRecentModelMenu")\
+                    .set_submenu(recent_files_menu)
             recent_files_menu.connect("item-activated",
                     self.load_recent_model_file)
         else:

src/pycam/Plugins/FilenameDialog.py

@@ -23,6 +23,7 @@ along with PyCAM.  If not, see <http://www.gnu.org/licenses/>.
 import os
 
 import pycam.Plugins
+import pycam.Utils
 
 
 def _get_filters_from_list(filter_list):
@@ -35,7 +36,8 @@ def _get_filters_from_list(filter_list):
         if not isinstance(file_extensions, (list, tuple)):
             file_extensions = [file_extensions]
         for ext in file_extensions:
-            current_filter.add_pattern(ext)
+            current_filter.add_pattern(
+                    pycam.Utils.get_case_insensitive_file_pattern(ext))
         result.append(current_filter)
     return result
 

src/pycam/Utils/__init__.py

@@ -59,6 +59,19 @@ def get_platform():
     else:
         return PLATFORM_UNKNOWN
 
+def get_case_insensitive_file_pattern(pattern):
+    """ Convert something like "*.svg" into "*.[sS][vV][gG]" - as it is
+        required for GTK's FileFilter.
+    """
+    result = []
+    char_match = re.compile(r"[a-zA-Z]")
+    for char in pattern:
+        if char_match.match(char):
+            result.append("[%s%s]" % (char.lower(), char.upper()))
+        else:
+            result.append(char)
+    return "".join(result)
+
 
 class URIHandler(object):