From 577abbc3a3ea97ee4db78fd638551956ae4847f7 Mon Sep 17 00:00:00 2001
From: Kent Sutherland <ksuther@ithinksw.com>
Date: Wed, 18 Dec 2002 00:36:56 +0000
Subject: [PATCH] Added a new method, moveTab:toIndex:

---
 ITTabView.h |  7 ++++++
 ITTabView.m | 61 +++++++++++++++++++++++++++++++++++------------------
 2 files changed, 48 insertions(+), 20 deletions(-)

diff --git a/ITTabView.h b/ITTabView.h
index 4a03809..1c109c8 100755
--- a/ITTabView.h
+++ b/ITTabView.h
@@ -21,5 +21,12 @@
 @interface ITTabView : NSTabView
 {
     NSTabViewItem *_draggedTab;
+    bool _allowsDragging;
 }
+
+- (void)setAllowsDragging:(bool)flag;
+- (bool)allowsDragging;
+
+- (void)moveTab:(NSTabViewItem *)tab toIndex:(int)index;
+
 @end
diff --git a/ITTabView.m b/ITTabView.m
index 9fbfe56..d6940a3 100755
--- a/ITTabView.m
+++ b/ITTabView.m
@@ -6,43 +6,64 @@
 {
     if ( (self = [super initWithFrame:frame]) ) {
         _draggedTab = nil;
+        _allowsDragging = NO;
     }
     return self;
 }
 
+- (void)setAllowsDragging:(bool)flag
+{
+    _allowsDragging = flag;
+}
+
+- (bool)allowsDragging
+{
+    return _allowsDragging;
+}
+
+- (void)moveTab:(NSTabViewItem *)tab toIndex:(int)index
+{
+    if ([self indexOfTabViewItem:tab] != index)
+    {
+        [tab retain];
+        [self removeTabViewItem:tab];
+        [self insertTabViewItem:tab atIndex:index];
+        [self selectTabViewItem:tab];
+    }
+}
+
 - (void)mouseDown:(NSEvent *)event
 {
-    NSPoint clickedPoint = [self convertPoint:[event locationInWindow] fromView:[[self window] contentView]];
-    NSTabViewItem *clickedTab = [self tabViewItemAtPoint:clickedPoint];
-    _draggedTab = clickedTab;
+    if ([self allowsDragging]) {
+        NSPoint clickedPoint = [self convertPoint:[event locationInWindow] fromView:[[self window] contentView]];
+        NSTabViewItem *clickedTab = [self tabViewItemAtPoint:clickedPoint];
+        _draggedTab = clickedTab;
+    }
     [super mouseDown:event];
 }
 
 - (void)mouseUp:(NSEvent *)event
 {
-    NSPoint releasedPoint = [self convertPoint:[event locationInWindow] fromView:[[self window] contentView]];
-    NSTabViewItem *releasedTab = [self tabViewItemAtPoint:releasedPoint];
-    if (releasedTab && ![releasedTab isEqualTo:_draggedTab]) {
-        int releasedTabIndex = [self indexOfTabViewItem:releasedTab];
-        [_draggedTab retain];
-        [self removeTabViewItem:_draggedTab];
-        [self insertTabViewItem:_draggedTab atIndex:releasedTabIndex];
-        [self selectTabViewItem:_draggedTab];
+    if ([self allowsDragging]) {
+        NSPoint releasedPoint = [self convertPoint:[event locationInWindow] fromView:[[self window] contentView]];
+        NSTabViewItem *releasedTab = [self tabViewItemAtPoint:releasedPoint];
+        if (releasedTab && ![releasedTab isEqualTo:_draggedTab]) {
+            [self moveTab:_draggedTab toIndex:[self indexOfTabViewItem:releasedTab]];
+        }
+        _draggedTab = nil;
     }
-    _draggedTab = nil;
     [super mouseUp:event];
 }
 
 - (void)mouseDragged:(NSEvent *)event
 {
-    NSPoint currentPoint = [self convertPoint:[event locationInWindow] fromView:[[self window] contentView]];
-    NSTabViewItem *curTab = [self tabViewItemAtPoint:currentPoint];
-    if (curTab && ![curTab isEqualTo:_draggedTab]) {
-        int curTabIndex = [self indexOfTabViewItem:curTab];
-        [_draggedTab retain];
-        [self removeTabViewItem:_draggedTab];
-        [self insertTabViewItem:_draggedTab atIndex:curTabIndex];
-        [self selectTabViewItem:_draggedTab];
+    if ([self allowsDragging]) {
+        NSPoint currentPoint = [self convertPoint:[event locationInWindow] fromView:[[self window] contentView]];
+        NSTabViewItem *curTab = [self tabViewItemAtPoint:currentPoint];
+        if (curTab && ![curTab isEqualTo:_draggedTab]) {
+            [self moveTab:_draggedTab toIndex:[self indexOfTabViewItem:curTab]];
+            [self selectTabViewItem:_draggedTab];
+        }
     }
     [super mouseDragged:event];
 }
-- 
2.20.1