1 files changed, 78 insertions, 0 deletions
diff --git a/khexedit/lib/kcoordrangelist.cpp b/khexedit/lib/kcoordrangelist.cpp
new file mode 100644
index 0000000..3028c7d
--- /dev/null
+++ b/khexedit/lib/kcoordrangelist.cpp
@@ -0,0 +1,78 @@
+/***************************************************************************
+                          kcoordrangelist.cpp  -  description
+                             -------------------
+    begin                : Mon Jun 30 2003
+    copyright            : (C) 2003 by Friedrich W. H. Kossebau
+    email                : Friedrich.W.H@Kossebau.de
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU Library General Public           *
+ *   License version 2 as published by the Free Software Foundation.       *
+ *                                                                         *
+ ***************************************************************************/
+
+
+// lib specific
+#include "kcoordrangelist.h"
+
+using namespace KHE;
+
+KCoordRangeList::KCoordRangeList()
+{
+}
+
+
+KCoordRangeList::~KCoordRangeList()
+{
+}
+
+
+void KCoordRangeList::addCoordRange( KCoordRange NewCoordRange )
+{
+  if( !NewCoordRange.isValid() )
+    return;
+  // we try to insert it by ascending indizes
+  // if sections are overlapping we combine them
+  iterator S = begin();
+  for( ; S!=end(); ++S )
+  {
+    // is next CoordRange behind the new CoordRange?
+    if( NewCoordRange.endsBefore(*S) )
+    {
+      // put the new before it
+      insert( S, NewCoordRange );
+      return;
+    }
+
+    // does the next CoordRange overlap?
+    if( (*S).overlaps(NewCoordRange) )
+    {
+      // Start of the combined sections is the smaller one
+      NewCoordRange.extendStartTo( (*S).start() );
+      // next we search all the overlapping sections and keep the highest end index
+      KBufferCoord End((*S).end());
+      iterator LS = S;
+      for( ++LS; LS!=end(); ++LS )
+      {
+        if( !(*LS).overlaps(NewCoordRange) )
+          break;
+        End = (*LS).end();
+      }
+      // the higher end is the end of the combined CoordRange
+      NewCoordRange.extendEndTo( End );
+      // remove all overlapping sections
+      S = erase( S, LS );
+      // and instead insert the combined one
+      insert( S, NewCoordRange );
+      return;
+    }
+  }
+
+  // all others are before the new?
+  if( S == end() )
+    // add it at the end
+    append( NewCoordRange );
+}