From 9746d60cde6a55cb323de6c2d571b337151ed304 Mon Sep 17 00:00:00 2001
From: Don Ho <don.h@free.fr>
Date: Fri, 27 Nov 2009 19:00:42 +0000
Subject: [PATCH] [BUG_FIXED] Fix the Unicode to ANSI encoding bug.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@574 f5eea248-9336-0410-98b8-ebc06183d4e3
---
 PowerEditor/src/Notepad_plus.cpp              | 19 +++++++++++++++----
 .../ScitillaComponent/ScintillaEditView.cpp   | 10 +++++++---
 2 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/PowerEditor/src/Notepad_plus.cpp b/PowerEditor/src/Notepad_plus.cpp
index aaa0f3c08..edf49dc1a 100644
--- a/PowerEditor/src/Notepad_plus.cpp
+++ b/PowerEditor/src/Notepad_plus.cpp
@@ -4694,16 +4694,27 @@ void Notepad_plus::command(int id)
 		case IDM_FORMAT_CONV2_UCS_2LE:
 		{
 			int idEncoding = -1;
-			UniMode um = _pEditView->getCurrentBuffer()->getUnicodeMode();
+			Buffer *buf = _pEditView->getCurrentBuffer();
+            UniMode um = buf->getUnicodeMode();
+            int encoding = buf->getEncoding();
 
 			switch(id)
 			{
 				case IDM_FORMAT_CONV2_ANSI:
 				{
-					if (um == uni8Bit)
-						return;
+                    if (encoding != -1)
+                    {
+                        // do nothing
+                        return;
+                    }
+                    else
+                    {
+					    if (um == uni8Bit)
+						    return;
 						
-					idEncoding = IDM_FORMAT_ANSI;
+                        // set scintilla to ANSI
+					    idEncoding = IDM_FORMAT_ANSI;
+                    }
 					break;
 				}
 				case IDM_FORMAT_CONV2_AS_UTF_8:
diff --git a/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp b/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp
index 9295d092f..c30010db3 100644
--- a/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp
+++ b/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp
@@ -1493,19 +1493,23 @@ void ScintillaEditView::bufferUpdated(Buffer * buffer, int mask) {
 		}
 		if (mask & BufferChangeUnicode) 
 		{
+            int enc = CP_ACP;
 			if (buffer->getUnicodeMode() == uni8Bit) 
 			{	//either 0 or CJK codepage
 				LangType typeDoc = buffer->getLangType();
 				if (isCJK())
 				{
 					if (typeDoc == L_CSS || typeDoc == L_CAML || typeDoc == L_ASM || typeDoc == L_MATLAB)
-						execute(SCI_SETCODEPAGE, 0);	//you may also want to set charsets here, not yet implemented
+						enc = CP_ACP;	//you may also want to set charsets here, not yet implemented
 					else 
-						execute(SCI_SETCODEPAGE, _codepage);
+						enc = _codepage;
 				}
+                else
+                    enc = CP_ACP;
 			} 
 			else	//CP UTF8 for all unicode
-				execute(SCI_SETCODEPAGE, SC_CP_UTF8);
+				enc = SC_CP_UTF8;
+            execute(SCI_SETCODEPAGE, enc);
 		}
 	}
 }