From 0e190fa2b480ec155f9808de4bb378731dc1154f Mon Sep 17 00:00:00 2001
From: Julian Smart <julian@anthemion.co.uk>
Date: Sun, 6 Mar 2011 09:09:42 +0000
Subject: [PATCH] Fixed #13017: wxRichTextCtrl CopyToClipboard regression

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67132 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/richtext/richtextbuffer.cpp | 52 ++++++++++++++++++++-------------
 1 file changed, 32 insertions(+), 20 deletions(-)

diff --git a/src/richtext/richtextbuffer.cpp b/src/richtext/richtextbuffer.cpp
index 85c67e3122..207a8899b1 100644
--- a/src/richtext/richtextbuffer.cpp
+++ b/src/richtext/richtextbuffer.cpp
@@ -2637,49 +2637,61 @@ bool wxRichTextParagraphLayoutBox::CopyFragment(const wxRichTextRange& range, wx
     // Now top and tail the first and last paragraphs in our new fragment (which might be the same).
     if (!fragment.IsEmpty())
     {
-        wxRichTextRange topTailRange(range);
-
         wxRichTextParagraph* firstPara = wxDynamicCast(fragment.GetChildren().GetFirst()->GetData(), wxRichTextParagraph);
         wxASSERT( firstPara != NULL );
 
+        wxRichTextParagraph* lastPara = wxDynamicCast(fragment.GetChildren().GetLast()->GetData(), wxRichTextParagraph);
+        wxASSERT( lastPara != NULL );
+
+        if (!firstPara || !lastPara)
+            return false;
+
+        bool isFragment = (range.GetEnd() < lastPara->GetRange().GetEnd());
+
+        long firstPos = firstPara->GetRange().GetStart();
+
+        // Adjust for renumbering from zero
+        wxRichTextRange topTailRange(range.GetStart() - firstPos, range.GetEnd() - firstPos);
+
+        long end;
+        fragment.CalculateRange(0, end);
+
         // Chop off the start of the paragraph
-        if (topTailRange.GetStart() > firstPara->GetRange().GetStart())
+        if (topTailRange.GetStart() > 0)
         {
-            wxRichTextRange r(firstPara->GetRange().GetStart(), topTailRange.GetStart()-1);
+            wxRichTextRange r(0, topTailRange.GetStart()-1);
             firstPara->DeleteRange(r);
 
             // Make sure the numbering is correct
-            long end;
-            fragment.CalculateRange(firstPara->GetRange().GetStart(), end);
+            fragment.CalculateRange(0, end);
 
             // Now, we've deleted some positions, so adjust the range
             // accordingly.
-            topTailRange.SetEnd(topTailRange.GetEnd() - r.GetLength());
+            topTailRange.SetStart(range.GetLength());
+            topTailRange.SetEnd(fragment.GetOwnRange().GetEnd());
+        }
+        else
+        {
+            topTailRange.SetStart(range.GetLength());
+            topTailRange.SetEnd(fragment.GetOwnRange().GetEnd());
         }
 
-        wxRichTextParagraph* lastPara = wxDynamicCast(fragment.GetChildren().GetLast()->GetData(), wxRichTextParagraph);
-        wxASSERT( lastPara != NULL );
-
-        if (topTailRange.GetEnd() < (lastPara->GetRange().GetEnd()-1))
+        if (topTailRange.GetStart() < (lastPara->GetRange().GetEnd()-1))
         {
-            wxRichTextRange r(topTailRange.GetEnd()+1, lastPara->GetRange().GetEnd()-1); /* -1 since actual text ends 1 position before end of para marker */
-            lastPara->DeleteRange(r);
+            lastPara->DeleteRange(topTailRange);
 
             // Make sure the numbering is correct
             long end;
-            fragment.CalculateRange(firstPara->GetRange().GetStart(), end);
+            fragment.CalculateRange(0, end);
 
             // We only have part of a paragraph at the end
             fragment.SetPartialParagraph(true);
         }
         else
         {
-            if (topTailRange.GetEnd() == (lastPara->GetRange().GetEnd() - 1))
-                // We have a partial paragraph (don't save last new paragraph marker)
-                fragment.SetPartialParagraph(true);
-            else
-                // We have a complete paragraph
-                fragment.SetPartialParagraph(false);
+            // We have a partial paragraph (don't save last new paragraph marker)
+            // or complete paragraph
+            fragment.SetPartialParagraph(isFragment);
         }
     }
 
-- 
2.45.2