Selection fixes

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@8450 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,13 @@
+2000-12-27  Richard Frith-Macdonald <rfm@gnu.org>
+
+	* Source/NSAttributedString.m: ([-doubleClickAtIndex:]),
+	Fixed infinite loop.  Added code to cope with double click on the
+	space between words.
+	* Source/NSTextView.m: ([-selectionRangeForProposedRange:granularity])
+	Re-implemented word selection using ([-doubleClickAtIndex:])
+	([-mouseDown:]) creatre proposed range for selection by merging old
+	selectin range with new location.
+
 2000-12-24  Fred Kiefer  <FredKiefer@gmx.de>
 
 	* Headers/gnustep/gui/NSButton.h:

Source/NSAttributedString.m

@@ -266,6 +266,21 @@ static inline void cache_init ()
 		  format: @"RangeError in method -doubleClickAtIndex:"];
     }
 
+  /*
+   * If the location lies between words, a double click selects only
+   * the character actually clicked on.
+   */
+  if ([wordBreakCSet characterIsMember: [str characterAtIndex: location]])
+    {
+      if (location == 0 || location == length - 1
+	|| [str characterAtIndex: location] != '\''
+	|| ! [wordCSet characterIsMember: [str characterAtIndex: location - 1]]
+	|| ! [wordCSet characterIsMember: [str characterAtIndex: location + 1]])
+	{
+	  return NSMakeRange(location, 1);
+	}
+    }
+
   scanRange = NSMakeRange (0, location);
   startRange = [str rangeOfCharacterFromSet: wordBreakCSet
 				    options: NSBackwardsSearch|NSLiteralSearch
@@ -299,7 +314,7 @@ static inline void cache_init ()
     {
       location = endRange.location + 1;
       scanRange = NSMakeRange (location, length - location);
-      startRange = [str rangeOfCharacterFromSet: wordBreakCSet
+      endRange = [str rangeOfCharacterFromSet: wordBreakCSet
 	options: NSLiteralSearch range: scanRange];
     }
 

Source/NSTextView.m

@@ -1975,6 +1975,7 @@ afterString in order over charRange. */
       /* Compute the new selection */
       startIndex = [self characterIndexForPoint: startPoint];
       proposedRange = NSMakeRange (startIndex, 0);
+      proposedRange = NSUnionRange (_selected_range, proposedRange);
       proposedRange = [self selectionRangeForProposedRange: proposedRange
 			    granularity: granularity];
       /* Merge it with the old one */
@@ -2591,41 +2592,21 @@ container, returning the modified location. */
   switch (granul)
     {
     case NSSelectByWord:
-      /* FIXME: The following code (or the routines it calls) does the
+      index = proposedCharRange.location;
-	 wrong thing when you double-click on the space between two
+      if (index >= length)
-	 words */
-      if ((proposedCharRange.location + 1) < length)
 	{
-	  index = [_textStorage nextWordFromIndex: 
+	  index = length - 1;
-				  (proposedCharRange.location + 1)
-				forward: NO];
 	}
-      else
+      newRange = [_textStorage doubleClickAtIndex: index];
+      if (proposedCharRange.length > 1)
 	{
-	  /* Exception: end of text */
+	  index = NSMaxRange(proposedCharRange) - 1;
-	  index = [_textStorage nextWordFromIndex: proposedCharRange.location
+	  if (index >= length)
-				forward: NO];
+	    {
-	}
+	      index = length - 1;
-      newRange.location = index;
-      index = [_textStorage nextWordFromIndex: NSMaxRange (proposedCharRange)
-                                      forward: YES];
-      if (index <= newRange.location)
-	{
-	  newRange.length = 0;
-	}
-      else
-	{
-	  if (index == length)
-	    {
-	      /* We are at the end of text ! */
-	      newRange.length = index - newRange.location;
-	    }
-	  else 
-	    {
-	      /* FIXME: The following will not work if there is more than a 
-		 single character between the two words ! */
-	      newRange.length = index - 1 - newRange.location;
 	    }
+	  aRange = [_textStorage doubleClickAtIndex: index];
+	  newRange = NSUnionRange(newRange, aRange);
 	}
       return newRange;