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https://github.com/gnustep/libs-gui.git
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Added code to share editing attributes and delegate between multiple
text views with the same layout manager git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@8371 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Nicola Pero
parent
9250be6b27
commit
9a852c5fe4
1 changed files with 162 additions and 17 deletions
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@ -48,6 +48,20 @@
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#define HUGE 1e7
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#define SET_DELEGATE_NOTIFICATION(notif_name) \
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if ([_delegate respondsToSelector: @selector(textView##notif_name: )]) \
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[nc addObserver: _delegate \
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selector: @selector(textView##notif_name: ) \
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name: NSTextView##notif_name##Notification \
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object: _notifObject]
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/* YES when in the process of synchronizing text view attributes.
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It is used to avoid recursive synchronizations. */
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static BOOL isSynchronizingFlags = NO;
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static BOOL isSynchronizingDelegate = NO;
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/* The shared notification center */
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static NSNotificationCenter *nc;
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@interface NSText(GNUstepPrivate)
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+ (NSDictionary*) defaultTypingAttributes;
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@ -67,6 +81,7 @@
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{
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[self setVersion: 1];
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[self registerForServices];
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nc = [NSNotificationCenter defaultCenter];
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}
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}
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@ -256,10 +271,38 @@
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[self didChangeText];
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}
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- (NSString *) string
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{
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return [_textStorage string];
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}
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/*
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* NSTextView's specific methods
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*/
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- (void) _updateMultipleTextViews
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{
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id oldNotifObject = _notifObject;
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if ([[_layoutManager textContainers] count] > 1)
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{
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_tvf.multiple_textviews = YES;
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_notifObject = [_layoutManager firstTextView];
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}
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else
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{
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_tvf.multiple_textviews = NO;
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_notifObject = self;
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}
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if ((_delegate != nil) && (oldNotifObject != _notifObject))
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{
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[nc removeObserver: _delegate name: nil object: oldNotifObject];
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SET_DELEGATE_NOTIFICATION (DidChangeSelection);
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SET_DELEGATE_NOTIFICATION (WillChangeNotifyingTextView);
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}
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}
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/* This should only be called by [NSTextContainer -setTextView:] */
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- (void) setTextContainer: (NSTextContainer*)aTextContainer
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{
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@ -267,6 +310,8 @@
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_layoutManager = [aTextContainer layoutManager];
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_textStorage = [_layoutManager textStorage];
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[self _updateMultipleTextViews];
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// FIXME: Hack to get the layout change
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[_textContainer setContainerSize: _frame.size];
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}
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@ -277,6 +322,10 @@
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/* Do not retain: text container is owning us. */
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_textContainer = aTextContainer;
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[self _updateMultipleTextViews];
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/* Update multiple_textviews flag */
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}
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- (NSTextContainer *) textContainer
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@ -381,15 +430,88 @@
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return NSDragOperationNone;
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}
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/*
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* Code to share settings between multiple textviews
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*
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*/
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/*
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_syncTextViewsCalling:withFlag: calls a set method on all text
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views sharing the same layout manager as this one. It sets the
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isSynchronizingFlags flag to YES to prevent recursive calls; calls the
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specified action on all the textviews (this one included) with the
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specified flag; sets back the isSynchronizingFlags flag to NO; then
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returns.
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We need to explicitly call the methods - we can't copy the flags
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directly from one textview to another, to allow subclasses to
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override eg setEditable: to take some particular action when
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editing is turned on or off. */
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- (void) _syncTextViewsByCalling: (SEL)action withFlag: (BOOL)flag
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{
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NSArray *array;
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int i, count;
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void (*msg)(id, SEL, BOOL);
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if (isSynchronizingFlags == YES)
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{
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[NSException raise: NSGenericException
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format: @"_syncTextViewsCalling:withFlag: "
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@"called recursively"];
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}
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array = [_layoutManager textContainers];
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count = [array count];
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msg = (void (*)(id, SEL, BOOL))[self methodForSelector: action];
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if (!msg)
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{
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[NSException raise: NSGenericException
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format: @"invalid selector in "
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@"_syncTextViewsCalling:withFlag:"];
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}
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isSynchronizingFlags = YES;
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for (i = 0; i < count; i++)
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{
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NSTextView *tv;
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tv = [(NSTextContainer *)[array objectAtIndex: i] textView];
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(*msg) (tv, action, flag);
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}
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isSynchronizingFlags = NO;
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}
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#define NSTEXTVIEW_SYNC(X) \
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if (_tvf.multiple_textviews && (isSynchronizingFlags == NO)) \
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[self _syncTextViewsByCalling: @selector(##X##) withFlag: flag]
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- (void) setEditable: (BOOL)flag
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{
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NSTEXTVIEW_SYNC (setEditable:);
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[super setEditable: flag];
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/* FIXME/TODO: Update/show the insertion point */
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}
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- (void) setFieldEditor: (BOOL)flag
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{
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NSTEXTVIEW_SYNC (setFieldEditor:);
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[super setFieldEditor: flag];
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}
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- (void) setSelectable: (BOOL)flag
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{
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NSTEXTVIEW_SYNC (setSelectable:);
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[super setSelectable: flag];
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}
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- (void) setRichText: (BOOL)flag
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{
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NSTEXTVIEW_SYNC (setRichText:);
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[super setRichText: flag];
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[self updateDragTypeRegistration];
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/* FIXME/TODO: Also convert text to plain text or to rich text */
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@ -397,12 +519,15 @@
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- (void) setImportsGraphics: (BOOL)flag
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{
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NSTEXTVIEW_SYNC (setImportsGraphics:);
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[super setImportsGraphics: flag];
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[self updateDragTypeRegistration];
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}
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- (void) setUsesRuler: (BOOL)flag
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{
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NSTEXTVIEW_SYNC (setUsesRuler:);
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_tf.uses_ruler = flag;
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}
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@ -411,15 +536,19 @@
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return _tf.uses_ruler;
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}
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- (void) setUsesFontPanel: (BOOL)flag
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{
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NSTEXTVIEW_SYNC (setUsesFontPanel:);
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[super setUsesFontPanel: flag];
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}
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- (void) setRulerVisible: (BOOL)flag
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{
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NSTEXTVIEW_SYNC (setRulerVisible:);
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[super setRulerVisible: flag];
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}
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- (BOOL) isRulerVisible
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{
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return _tf.is_ruler_visible;
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}
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#undef NSTEXTVIEW_SYNC
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- (void) setSelectedRange: (NSRange)charRange
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{
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@ -947,8 +1076,8 @@ the affected range or replacement string before beginning changes, pass
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- (void) didChangeText
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{
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[[NSNotificationCenter defaultCenter]
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postNotificationName: NSTextDidChangeNotification object: self];
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[nc postNotificationName: NSTextDidChangeNotification
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object: _notifObject];
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}
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- (void) setSmartInsertDeleteEnabled: (BOOL)flag
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@ -1153,19 +1282,35 @@ container, returning the modified location. */
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- (void) setDelegate: (id) anObject
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{
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NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
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if (_tvf.multiple_textviews && (isSynchronizingDelegate == NO))
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{
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/* Invoke setDelegate: on all the textviews which share this
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delegate. */
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NSArray *array;
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int i, count;
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isSynchronizingDelegate = YES;
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array = [_layoutManager textContainers];
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count = [array count];
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for (i = 0; i < count; i++)
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{
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NSTextView *view;
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view = [(NSTextContainer *)[array objectAtIndex: i] textView];
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[view setDelegate: anObject];
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}
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isSynchronizingDelegate = NO;
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}
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/* Now the real code to set the delegate */
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[super setDelegate: anObject];
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#define SET_DELEGATE_NOTIFICATION(notif_name) \
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if ([_delegate respondsToSelector: @selector(textView##notif_name: )]) \
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[nc addObserver: _delegate \
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selector: @selector(textView##notif_name: ) \
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name: NSTextView##notif_name##Notification \
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object: self]
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SET_DELEGATE_NOTIFICATION(DidChangeSelection);
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SET_DELEGATE_NOTIFICATION(WillChangeNotifyingTextView);
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/* SET_DELEGATE_NOTIFICATION defined at the beginning of file */
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SET_DELEGATE_NOTIFICATION (DidChangeSelection);
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SET_DELEGATE_NOTIFICATION (WillChangeNotifyingTextView);
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}
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@end
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