X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=blobdiff_plain;f=dali-toolkit%2Finternal%2Ftext%2Fsegmentation.cpp;h=61afef1b9f197e7db1e87b8d3f0ee4cc814c38c3;hp=5e590b5bc7b5f5fe93509a8ea051ea639b58d46c;hb=0b2e209ecfb3cedba510f53a4af58d7d8a2b3876;hpb=269ef791ecea99b85d6241ad8e39769e1db312b3

diff --git a/dali-toolkit/internal/text/segmentation.cpp b/dali-toolkit/internal/text/segmentation.cpp
index 5e590b5..61afef1 100644
--- a/dali-toolkit/internal/text/segmentation.cpp
+++ b/dali-toolkit/internal/text/segmentation.cpp
@@ -50,21 +50,51 @@ namespace Text
 {
 
 void SetLineBreakInfo( const Vector<Character>& text,
+                       CharacterIndex startIndex,
+                       Length numberOfCharacters,
                        Vector<LineBreakInfo>& lineBreakInfo )
 {
-  const Length numberOfCharacters = text.Count();
+  const Length totalNumberOfCharacters = text.Count();
 
-  if( 0u == numberOfCharacters )
+  if( 0u == totalNumberOfCharacters )
   {
     // Nothing to do if there are no characters.
     return;
   }
 
   // Retrieve the line break info.
-  lineBreakInfo.Resize( numberOfCharacters );
-  TextAbstraction::Segmentation::Get().GetLineBreakPositions( text.Begin(),
+  lineBreakInfo.Resize( totalNumberOfCharacters );
+
+  // Whether the current buffer is being updated or is set from scratch.
+  const bool updateCurrentBuffer = numberOfCharacters < totalNumberOfCharacters;
+
+  LineBreakInfo* lineBreakInfoBuffer = NULL;
+  Vector<LineBreakInfo> newLineBreakInfo;
+
+  if( updateCurrentBuffer )
+  {
+    newLineBreakInfo.Resize( numberOfCharacters );
+    lineBreakInfoBuffer = newLineBreakInfo.Begin();
+  }
+  else
+  {
+    lineBreakInfoBuffer = lineBreakInfo.Begin();
+  }
+
+  // Retrieve the line break info.
+  TextAbstraction::Segmentation::Get().GetLineBreakPositions( text.Begin() + startIndex,
                                                               numberOfCharacters,
-                                                              lineBreakInfo.Begin() );
+                                                              lineBreakInfoBuffer );
+
+  // If the line break info is updated, it needs to be inserted in the model.
+  if( updateCurrentBuffer )
+  {
+    lineBreakInfo.Insert( lineBreakInfo.Begin() + startIndex,
+                          newLineBreakInfo.Begin(),
+                          newLineBreakInfo.End() );
+    lineBreakInfo.Resize( totalNumberOfCharacters );
+  }
+
 #ifdef DEBUG_ENABLED
   if( gLogFilter->IsEnabledFor(Debug::Verbose) )
   {