Make sure the text network stays synchronized when one part changes.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@15760 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,14 @@
+2003-01-29 21:14  Alexander Malmberg <alexander@malmberg.org>
+
+	* Source/GSLayoutManager.m (-setTextStorage:): Tell our text
+	containers about the change.
+
+	* Source/NSTextContainer.m (-setLayoutManager:): Tell our text view
+	about the change.
+
+	* Source/NSTextView.m: Guard in a few places where _layoutManager
+	might be nil.
+
 2003-01-29 16:01  Alexander Malmberg <alexander@malmberg.org>
 
 	* Source/GSHorizontalTypesetter.m (-layoutLineNewParagraph:): Place

Source/GSLayoutManager.m

@@ -1991,8 +1991,14 @@ forStartOfGlyphRange: (NSRange)glyphRange
  * more for internal use by the text system.
  * Invalidates the entire layout (should it??)
  */
+/*
+See [NSTextView -setTextContainer:] for more information about these calls.
+*/
 - (void) setTextStorage: (NSTextStorage *)aTextStorage
 {
+  int i;
+  textcontainer_t *tc;
+
   [self _invalidateEverything];
 
   /*
@@ -2001,7 +2007,14 @@ forStartOfGlyphRange: (NSRange)glyphRange
    */
   _textStorage = aTextStorage;
 
-  /* TODO: tell all the text containers about that change! */
+  /*
+  We send this message to all text containers so they can respond to the
+  change (most importantly to let them tell their text views).
+  */
+  for (i = 0, tc = textcontainers; i < num_textcontainers; i++, tc++)
+    {
+      [tc->textContainer setLayoutManager: self];
+    }
 }
 
 /**

Source/NSTextContainer.m

@@ -118,11 +118,16 @@ use bounds rectangle instead of frame? */
   [super dealloc];
 }
 
+/*
+See [NSTextView -setTextContainer:] for more information about these calls.
+*/
 - (void) setLayoutManager: (GSLayoutManager*)aLayoutManager
 {
   /* The layout manager owns us - so he retains us and we don't retain 
      him. */
   _layoutManager = aLayoutManager;
+  /* Tell our text view about the change. */
+  [_textView setTextContainer: self];
 }
 
 - (GSLayoutManager*) layoutManager