[jdt-ui-dev] Faster Open-Type Dialog

["Randy Hudson" <hudsonr@xxxxxxxxxx>]

Here is my "patch" for making the OpenTypeDialog faster.  I assumed that
noone wants to search for a class with fewer chars than 2, or perform a
wildcard search with fewer chars than 3.

I do not know what is required to indicate "do not search" (null perhaps?),
so I currently use a bogus search string so that no hits are found.

      private static class TypeFilterMatcher implements
FilteredList.FilterMatcher {

            private StringMatcher fMatcher;
            private StringMatcher fQualifierMatcher;

            /*
             * @see FilteredList.FilterMatcher#setFilter(String, boolean)
             */
            public void setFilter(String pattern, boolean ignoreCase,
boolean igoreWildCards) {

+                 if (pattern != null){
+                       int content = 0;
+                       boolean wildcard = false;
+                       for (int i=0; i<pattern.length(); i++){
+                             char ch = pattern.charAt(i);
+                             if (ch == '*' || ch == '.' || ch == '?'){
+                                   wildcard = true;
+                                   continue;
+                             }
+                             content++;
+                       }
+                       if (content < 2 || wildcard && content < 3)
+                             pattern = "xxxxx1111xxxxxx"; //$NON-NLS-1$
+                 }

                  int qualifierIndex= pattern.lastIndexOf(".");
//$NON-NLS-1$