From 01c48f98e5557089fc7501394f905a5b15fde9c0 Mon Sep 17 00:00:00 2001
From: Neil <nyamatongwe@gmail.com>
Date: Tue, 19 Dec 2017 15:00:40 +1100
Subject: Start of bidirectional code - implement SCI_SETBIDIRECTIONAL.

---
 win32/ScintillaWin.cxx | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'win32')

diff --git a/win32/ScintillaWin.cxx b/win32/ScintillaWin.cxx
index 2d2fc266c..45b091546 100644
--- a/win32/ScintillaWin.cxx
+++ b/win32/ScintillaWin.cxx
@@ -1744,6 +1744,17 @@ sptr_t ScintillaWin::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam
 			}
 			break;
 
+		case SCI_SETBIDIRECTIONAL:
+			if (technology == SC_TECHNOLOGY_DEFAULT) {
+				bidirectional = EditModel::Bidirectional::bidiDisabled;
+			} else if ((wParam >= SC_BIDIRECTIONAL_DISABLED) && (wParam <= SC_BIDIRECTIONAL_R2L)) {
+				bidirectional = static_cast<EditModel::Bidirectional>(wParam);
+			}
+			// Invalidate all cached information including layout.
+			DropGraphics(true);
+			InvalidateStyleRedraw();
+			break;
+
 #ifdef SCI_LEXER
 		case SCI_LOADLEXERLIBRARY:
 			LexerManager::GetInstance()->Load(reinterpret_cast<const char *>(lParam));
-- 
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