From 428df19cbc431c06a2b027f4d8263e906aae305f Mon Sep 17 00:00:00 2001
From: Don Ho <don.h@free.fr>
Date: Sun, 7 Dec 2014 16:43:31 +0000
Subject: [PATCH] [NEW] Document map follows the current text direction
 (RTL/LTR).

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1303 f5eea248-9336-0410-98b8-ebc06183d4e3
---
 PowerEditor/src/NppCommands.cpp                      |  8 +++++---
 .../src/ScitillaComponent/ScintillaEditView.cpp      | 12 ++++++++++++
 .../src/ScitillaComponent/ScintillaEditView.h        |  2 ++
 .../src/WinControls/DocumentMap/documentMap.cpp      |  9 +++++++++
 .../src/WinControls/DocumentMap/documentMap.h        |  1 +
 5 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/PowerEditor/src/NppCommands.cpp b/PowerEditor/src/NppCommands.cpp
index 42924cea..04926798 100644
--- a/PowerEditor/src/NppCommands.cpp
+++ b/PowerEditor/src/NppCommands.cpp
@@ -2383,14 +2383,16 @@ void Notepad_plus::command(int id)
 		case IDM_EDIT_RTL :
 		case IDM_EDIT_LTR :
 		{
-			long exStyle = ::GetWindowLongPtr(_pEditView->getHSelf(), GWL_EXSTYLE);
-			exStyle = (id == IDM_EDIT_RTL)?exStyle|WS_EX_LAYOUTRTL:exStyle&(~WS_EX_LAYOUTRTL);
-			::SetWindowLongPtr(_pEditView->getHSelf(), GWL_EXSTYLE, exStyle);
+			_pEditView->changeTextDirection(id == IDM_EDIT_RTL);
 
 			// Wrap then !wrap to fix problem of mirror characters
 			bool isWraped = _pEditView->isWrap();
 			_pEditView->wrap(!isWraped);
 			_pEditView->wrap(isWraped);
+			if (_pDocMap)
+			{
+				_pDocMap->changeTextDirection(id == IDM_EDIT_RTL);
+			}
 		}
 		break;
 
diff --git a/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp b/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp
index 4d263d94..ceeeff73 100644
--- a/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp
+++ b/PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp
@@ -3081,6 +3081,18 @@ void ScintillaEditView::quickSortLines(size_t fromLine, size_t toLine, bool isRe
 		quickSortLines(pivotIndex + 1, toLine, isReverse);
 }
 
+bool ScintillaEditView::isTextDirectionRTL() const
+{
+	long exStyle = ::GetWindowLongPtr(_hSelf, GWL_EXSTYLE);
+	return (exStyle & WS_EX_LAYOUTRTL) != 0;
+}
+
+void ScintillaEditView::changeTextDirection(bool isRTL)
+{
+	long exStyle = ::GetWindowLongPtr(_hSelf, GWL_EXSTYLE);
+	exStyle = isRTL ? exStyle | WS_EX_LAYOUTRTL : exStyle&(~WS_EX_LAYOUTRTL);
+	::SetWindowLongPtr(_hSelf, GWL_EXSTYLE, exStyle);
+}
 
 bool ScintillaEditView::swapLines(size_t line1, size_t line2)
 {
diff --git a/PowerEditor/src/ScitillaComponent/ScintillaEditView.h b/PowerEditor/src/ScitillaComponent/ScintillaEditView.h
index 55486111..0f5781b2 100644
--- a/PowerEditor/src/ScitillaComponent/ScintillaEditView.h
+++ b/PowerEditor/src/ScitillaComponent/ScintillaEditView.h
@@ -636,6 +636,8 @@ public:
 	void scrollPosToCenter(int pos);
 	bool swapLines(size_t line1, size_t line2);
 	void quickSortLines(size_t fromLine, size_t toLine, bool isReverse = false);
+	void changeTextDirection(bool isRTL);
+	bool isTextDirectionRTL() const;
 
 protected:
 	static HINSTANCE _hLib;
diff --git a/PowerEditor/src/WinControls/DocumentMap/documentMap.cpp b/PowerEditor/src/WinControls/DocumentMap/documentMap.cpp
index 5ff15738..e584a4ab 100644
--- a/PowerEditor/src/WinControls/DocumentMap/documentMap.cpp
+++ b/PowerEditor/src/WinControls/DocumentMap/documentMap.cpp
@@ -89,9 +89,18 @@ void DocumentMap::initWrapMap()
 		::MoveWindow(_pScintillaEditView->getHSelf(), 0, 0, rect.right - rect.left, rect.bottom-rect.top, TRUE);
 		_pScintillaEditView->wrap(false);
 		_pScintillaEditView->redraw(true);
+
+		bool isRTL = (*_ppEditView)->isTextDirectionRTL();
+		if (_pScintillaEditView->isTextDirectionRTL() != isRTL)
+			_pScintillaEditView->changeTextDirection(isRTL);
 	}
 }
 
+void DocumentMap::changeTextDirection(bool isRTL)
+{
+	_pScintillaEditView->changeTextDirection(isRTL);
+}
+
 /*
 double ddd = (double)Xlength1/(double)Xlength2;
 char dchar[256];
diff --git a/PowerEditor/src/WinControls/DocumentMap/documentMap.h b/PowerEditor/src/WinControls/DocumentMap/documentMap.h
index d2361e34..de688eca 100644
--- a/PowerEditor/src/WinControls/DocumentMap/documentMap.h
+++ b/PowerEditor/src/WinControls/DocumentMap/documentMap.h
@@ -131,6 +131,7 @@ public:
 	void fold(int line, bool foldOrNot);
 	void foldAll(bool mode);
 	void setSyntaxHiliting();
+	void changeTextDirection(bool isRTL);
 
 protected:
 	virtual BOOL CALLBACK run_dlgProc(UINT message, WPARAM wParam, LPARAM lParam);