Display corection of the enter and rm will now redisplay all the screen

add comment @ in asm code and do not request redraw in GTK3.0
Some amelioration of the redrawing
2011-10-05 18:07:35 +02:00 · 2011-10-04 18:11:33 +02:00 · 2011-10-04 13:19:29 +02:00 · 2011-10-04 13:03:40 +02:00 · 2011-10-03 22:31:54 +02:00 · 2011-09-29 17:50:26 +02:00
21 changed files with 1428 additions and 503 deletions
--- a/Sources/Buffer/Buffer.cpp
+++ b/Sources/Buffer/Buffer.cpp
@ -41,6 +41,8 @@
 */
 Buffer::Buffer()
 {
+	static int32_t bufID = 0;
+	m_uniqueID = bufID++;
 	static int32_t fileBasicID = 0;
 	m_fileModify = true;
 	m_haveName = false;
@ -48,6 +50,23 @@ Buffer::Buffer()
 	mString += fileBasicID++;
 	SetFileName(mString);
 	m_haveName = false;
+	// Set basic anchor
+	bufferAnchorReference_ts tmpAnchor;
+	tmpAnchor.m_displaySize.x = 0;
+	tmpAnchor.m_displaySize.y = 0;
+	tmpAnchor.m_displayStart.x = 0;
+	tmpAnchor.m_curent = true;
+	tmpAnchor.m_idAnchor = -1;
+	tmpAnchor.m_lineId = 0;
+	tmpAnchor.m_bufferPos = 0;
+	for(int32_t iii=0; iii<MAX_LINE_DISPLAYABLE_BY_BUFFER; iii++) {
+		tmpAnchor.m_redrawLine[iii] = true;
+	}
+	tmpAnchor.m_BufferNumberLineOffset = 0;
+	m_AnchorList.PushBack(tmpAnchor);
+	
+	m_lineWidth = 10;
+	m_lineHeight = 10;
 }

 /**
@ -62,6 +81,20 @@ Buffer::Buffer(Edn::File &newName)
 {
 	m_fileModify = false;
 	SetFileName(newName);
+	// Set basic anchor
+	bufferAnchorReference_ts tmpAnchor;
+	tmpAnchor.m_displaySize.x = 0;
+	tmpAnchor.m_displaySize.y = 0;
+	tmpAnchor.m_displayStart.x = 0;
+	tmpAnchor.m_curent = true;
+	tmpAnchor.m_idAnchor = -1;
+	tmpAnchor.m_lineId = 0;
+	tmpAnchor.m_bufferPos = 0;
+	for(int32_t iii=0; iii<MAX_LINE_DISPLAYABLE_BY_BUFFER; iii++) {
+		tmpAnchor.m_redrawLine[iii] = true;
+	}
+	tmpAnchor.m_BufferNumberLineOffset = 0;
+	m_AnchorList .PushBack(tmpAnchor);
 }

 /**
@ -146,9 +179,29 @@ void Buffer::SetLineDisplay(uint32_t lineNumber)
 * @return ---
 *
 */
-int32_t	Buffer::Display(DrawerManager &drawer)
+void Buffer::DrawLine(DrawerManager &drawer, bufferAnchor_ts &anchor)
 {
-	return ERR_NONE;
+	return;
+}
+
+
+/**
+ * @brief
+ *
+ * @param[in,out] ---
+ *
+ * @return ---
+ *
+ */
+void Buffer::DrawLineEmpty(DrawerManager &drawer, int32_t lineScreenID)
+{
+	ColorizeManager * myColorManager = ColorizeManager::getInstance();
+	int32_t positionY = m_lineHeight * (lineScreenID);
+#	ifdef NDEBUG
+	drawer.Rectangle(myColorManager->Get(COLOR_CODE_BASIC_BG), 0, positionY, drawer.GetWidth(), m_lineHeight );
+#	else
+	drawer.Rectangle(myColorManager->Get(COLOR_CODE_CURSOR), 0, positionY, drawer.GetWidth(), m_lineHeight );
+#	endif
 }

 /**
@ -235,7 +288,6 @@ void Buffer::ScrollUp(void)
 	// nothing to do
 }

-
 /**
 * @brief
 *
@ -244,13 +296,6 @@ void Buffer::ScrollUp(void)
 * @return ---
 *
 */
-void Buffer::ForceReDraw(bool allElement)
-{
-	// nothing to do
-}
-
-
-
 void Buffer::cursorMove(int32_t gtkKey)
 {
 	// nothing to do
@ -348,7 +393,7 @@ void Buffer::Paste(int8_t clipboardID)

 void Buffer::RemoveLine(void)
 {
-	// nothing to do
+	// nothing to do;
 }

 void Buffer::SelectAll(void)
@ -371,3 +416,220 @@ void Buffer::Redo(void)
 	// nothing to do
 }

+
+void Buffer::AnchorAdd(int32_t anchorID)
+{
+	int32_t localID = AnchorRealId(anchorID);
+	if (localID >=0) {
+		EDN_ERROR("[" << m_uniqueID << "] AnchorID="<< anchorID << " already exist !!!");
+	} else {
+		bufferAnchorReference_ts tmpAnchor = m_AnchorList[0];
+		m_AnchorList[0].m_curent = false;
+		tmpAnchor.m_idAnchor = anchorID;
+		for(int32_t iii=0; iii<MAX_LINE_DISPLAYABLE_BY_BUFFER; iii++) {
+			tmpAnchor.m_redrawLine[iii] = true;
+		}
+		m_AnchorList.PushBack(tmpAnchor);
+		EDN_DEBUG("[" << m_uniqueID << "] AnchorID="<< anchorID << " ==> Added");
+	}
+}
+
+
+void Buffer::AnchorRm(int32_t anchorID)
+{
+	if (anchorID == -1) {
+		EDN_ERROR("[" << m_uniqueID << "] AnchorID="<< anchorID << " Can not remove this one !!!");
+		return;
+	}
+	int32_t localID = AnchorRealId(anchorID);
+	if (localID >=0) {
+		if (m_AnchorList.Size() == 2) {
+			m_AnchorList[0] = m_AnchorList[1];
+			for(int32_t iii=0; iii<MAX_LINE_DISPLAYABLE_BY_BUFFER; iii++) {
+				m_AnchorList[0].m_redrawLine[iii] = true;
+			}
+			m_AnchorList[0].m_BufferNumberLineOffset = 0;
+		}
+		m_AnchorList.Erase(localID);
+		EDN_DEBUG("[" << m_uniqueID << "] AnchorID="<< anchorID << " ==> Remove");
+	} else {
+		EDN_ERROR("[" << m_uniqueID << "] AnchorID="<< anchorID << " does not exist !!!");
+	}
+}
+
+
+void Buffer::AnchorRedrawAll(int32_t anchorID)
+{
+	if (anchorID == -1) {
+		EDN_ERROR("[" << m_uniqueID << "] AnchorID="<< anchorID << " Can not redraw this one !!!");
+		return;
+	}
+	int32_t localID = AnchorRealId(anchorID);
+	if (localID >=0) {
+		AnchorForceRedrawAll(localID);
+	} else {
+		EDN_ERROR("[" << m_uniqueID << "] AnchorID="<< anchorID << " does not exist !!!");
+	}
+}
+
+
+bool Buffer::AnchorGet(int32_t anchorID, bufferAnchor_ts & anchor)
+{
+	EDN_ERROR("[" << m_uniqueID << "] AnchorID="<< anchorID << " Main buffer ==> can not manage Anchor (type buffer specific)");
+	return false;
+}
+
+
+bool Buffer::AnchorNext(bufferAnchor_ts & anchor)
+{
+	EDN_ERROR("[" << m_uniqueID << "] AnchorID=?? Main buffer ==> can not manage Anchor (type buffer specific)");
+	return false;
+}
+
+
+void Buffer::AnchorSetSize(int32_t anchorID, int32_t sizePixelX, int32_t sizePixelY)
+{
+	int32_t localID = AnchorRealId(anchorID);
+	if (localID >=0) {
+		position_ts mySize;
+		mySize.x = sizePixelX / m_lineWidth;
+		mySize.y = sizePixelY / m_lineHeight;
+		if(    m_AnchorList[localID].m_displaySize.x != mySize.x
+		    || m_AnchorList[localID].m_displaySize.y != mySize.y )
+		{
+			AnchorForceRedrawAll(localID);
+		}
+		m_AnchorList[localID].m_displaySize = mySize;
+	}
+}
+
+
+void Buffer::AnchorSetStartOffset(int32_t anchorID, int32_t offsetX, int32_t offsetY)
+{
+	int32_t localID = AnchorRealId(anchorID);
+	if (localID >=0) {
+		m_AnchorList[localID].m_displayStart.x += offsetX;
+		if (0<m_AnchorList[localID].m_displayStart.x) {
+			m_AnchorList[localID].m_displayStart.x = 0;
+		}
+		m_AnchorList[localID].m_displayStart.y += offsetY;
+		if (0<m_AnchorList[localID].m_displayStart.y) {
+			m_AnchorList[localID].m_displayStart.y = 0;
+		}
+		AnchorForceRedrawAll(localID);
+	}
+}
+
+
+int32_t Buffer::AnchorRealId(int32_t anchorID)
+{
+	//EDN_DEBUG("Get real ID : " << anchorID << " in the anchor list size()=" << m_AnchorList.Size());
+	for(int32_t iii=0; iii < m_AnchorList.Size(); iii++) {
+		//EDN_DEBUG("check if equal : " << m_AnchorList[iii].m_idAnchor << " id=" << iii);
+		if (m_AnchorList[iii].m_idAnchor == anchorID) {
+			return iii;
+		}
+	}
+	return -1;
+}
+
+int32_t Buffer::AnchorCurrentId(void)
+{
+	for(int32_t iii=0; iii < m_AnchorList.Size(); iii++) {
+		if (m_AnchorList[iii].m_curent == true) {
+			return iii;
+		}
+	}
+	return 0;
+}
+
+void Buffer::AnchorForceRedrawAll(int32_t realAnchorId)
+{
+	EDN_DEBUG("AnchorForceRedrawAll(" << realAnchorId << ")");
+	if (-5000 == realAnchorId) {
+		int32_t localID = AnchorCurrentId();
+		if (localID >=0) {
+			m_AnchorList[localID].m_BufferNumberLineOffset = 0;
+			for(int32_t iii=0; iii < MAX_LINE_DISPLAYABLE_BY_BUFFER; iii++) {
+				m_AnchorList[localID].m_redrawLine[iii] = true;
+			}
+		}
+	} else {
+		m_AnchorList[realAnchorId].m_BufferNumberLineOffset = 0;
+		for(int32_t iii=0; iii < MAX_LINE_DISPLAYABLE_BY_BUFFER; iii++) {
+			m_AnchorList[realAnchorId].m_redrawLine[iii] = true;
+		}
+	}
+}
+
+void Buffer::AnchorForceRedrawLine(int32_t lineID)
+{
+	for(int32_t iii=0; iii < m_AnchorList.Size(); iii++) {
+		if(    m_AnchorList[iii].m_displayStart.y <= lineID
+		    && m_AnchorList[iii].m_displayStart.y + MAX_LINE_DISPLAYABLE_BY_BUFFER > lineID )
+		{
+			m_AnchorList[iii].m_redrawLine[lineID-m_AnchorList[iii].m_displayStart.y] = true;
+		}
+	}
+}
+
+
+// TODO : optimiser cette fonction qui met plusieurs fois des variables a true ....
+
+void Buffer::AnchorForceRedrawOffsef(int32_t offset)
+{
+	EDN_DEBUG("** => set ofset : " << offset);
+	if (0 == offset) {
+		EDN_DEBUG("No apply offset ...");
+		return;
+	}
+	int32_t localID = AnchorCurrentId();
+	if (localID >=0) {
+		EDN_DEBUG("offset ID=" << localID);
+		m_AnchorList[localID].m_BufferNumberLineOffset += offset;
+		
+		EDN_DEBUG("move redraw request : [" << m_AnchorList[localID].m_displaySize.y << "," << MAX_LINE_DISPLAYABLE_BY_BUFFER << "[=true");
+		for(int32_t iii=m_AnchorList[localID].m_displaySize.y; iii < MAX_LINE_DISPLAYABLE_BY_BUFFER; iii++) {
+			m_AnchorList[localID].m_redrawLine[iii] = true;
+		}
+		
+		int32_t maxSize = edn_min(m_AnchorList[localID].m_displaySize.y, MAX_LINE_DISPLAYABLE_BY_BUFFER);
+		
+		if (offset < 0) {
+			if (-1 * offset < maxSize) {
+				EDN_DEBUG("move redraw request : ]" << maxSize << "," << -1*offset << "]=]" << maxSize+offset << "," << -1*offset + offset << "]");
+				for(int32_t iii=maxSize-1; iii >= -1*offset; iii--) {
+					m_AnchorList[localID].m_redrawLine[iii] = m_AnchorList[localID].m_redrawLine[iii+offset];
+				}
+				EDN_DEBUG("move redraw request : [" << 0 << "," << -1*offset << "[=true");
+				for(int32_t iii=0; iii < -1*offset; iii++) {
+					m_AnchorList[localID].m_redrawLine[iii] = true;
+				}
+			} else {
+				EDN_WARNING("FORCE a total redraw... 1");
+				for(int32_t iii=0; iii < maxSize; iii++) {
+					m_AnchorList[localID].m_redrawLine[iii] = true;
+				}
+			}
+		} else {
+			if (offset < maxSize) {
+				EDN_DEBUG("move redraw request : [" << 0 << "," << maxSize-offset << "[=[" << offset << "," << maxSize << "[");
+				for(int32_t iii=0; iii < maxSize-offset ; iii++) {
+					m_AnchorList[localID].m_redrawLine[iii] = m_AnchorList[localID].m_redrawLine[iii+offset];
+				}
+				// note the -1 is to force the redisplay of the previous of the last line ==> special case of the gtk 3.0 marker to resize the windows
+				EDN_DEBUG("move redraw request : [" << maxSize-offset-1 << "," << maxSize << "[=true");
+				for(int32_t iii=maxSize-offset-1; iii < maxSize; iii++) {
+					m_AnchorList[localID].m_redrawLine[iii] = true;
+				}
+			} else {
+				EDN_WARNING("FORCE a total redraw... 2");
+				for(int32_t iii=0; iii < maxSize; iii++) {
+					m_AnchorList[localID].m_redrawLine[iii] = true;
+				}
+			}
+		}
+	} else {
+		EDN_ERROR("can not find the real ID in linste.Size()=" << m_AnchorList.Size());
+	}
+}
--- a/Sources/Buffer/Buffer.h
+++ b/Sources/Buffer/Buffer.h
@ -31,15 +31,43 @@
 #include "charset.h"
 #include "Edn.h"

+#define MAX_LINE_DISPLAYABLE_BY_BUFFER (200)

-typedef struct{
-	uint32_t nbTotalLine;				//!< Number of line in the buffer
-	uint32_t nbTotalColomn;				//!< Number of line in the buffer
-	uint32_t startLineDisplay;			//!< First line display.
-	uint32_t startColomnDisplay;		//!< First Colomn displayed
-	uint32_t diplayableColomn;			//!< NB colomn that can be displayed
-	uint32_t diplayableLine;			//!< NB Line that can be displayed
-}infoStatBuffer_ts;
+extern "C"
+{
+	typedef struct{
+		uint32_t nbTotalLine;				//!< Number of line in the buffer
+		uint32_t nbTotalColomn;				//!< Number of line in the buffer
+		uint32_t startLineDisplay;			//!< First line display.
+		uint32_t startColomnDisplay;		//!< First Colomn displayed
+		uint32_t diplayableColomn;			//!< NB colomn that can be displayed
+		uint32_t diplayableLine;			//!< NB Line that can be displayed
+	}infoStatBuffer_ts;
+	
+	typedef struct {
+		int32_t      m_idAnchor;                                   //!< reference id of the anchor (real id of the upper displayer of CodeView)
+		bool         m_curent;                                     //!< set at true if the anchor is a reference with the curent display
+		int32_t      m_lineId;                                     //!< first line ID to display
+		int32_t      m_bufferPos;                                  //!< position of the first lineId
+		position_ts  m_displayStart;                               //!< start display position
+		position_ts  m_displaySize;                                //!< size of the curent display
+		bool         m_redrawLine[MAX_LINE_DISPLAYABLE_BY_BUFFER]; //!< List of the current line that must be redisplayed
+		int32_t      m_BufferNumberLineOffset;                     //!< number of line that might be an ofset on the curent screen
+	} bufferAnchorReference_ts;
+	
+	typedef struct {
+		position_ts  m_displayStart;                               //!< start display position
+		position_ts  m_displaySize;                                //!< size of the curent display
+		int32_t      m_lineNumber;                                 //!< current line-number id
+		int32_t      m_nbIterationMax;                             //!< number of cycle needed to end the dispalay
+		int32_t      m_posStart;                                   //!< position of the start of the line
+		int32_t      m_posStop;                                    //!< position of the end of the line
+		int32_t      m_selectionPosStart;                          //!< position of the selection start
+		int32_t      m_selectionPosStop;                           //!< position of the selection stop
+		bool         m_redrawLine[MAX_LINE_DISPLAYABLE_BY_BUFFER]; //!< List of the current line that must be redisplayed
+		int32_t      m_BufferNumberLineOffset;                     //!< number of line that might be an ofset on the curent screen
+	} bufferAnchor_ts;
+}


 class Buffer {
@ -81,22 +109,25 @@ class Buffer {
 		virtual void      GetInfo(infoStatBuffer_ts &infoToUpdate);
 		virtual void      SetLineDisplay(uint32_t lineNumber);
 		
-		virtual int32_t   Display(DrawerManager &drawer);
-		virtual void      ForceReDraw(bool allElement);
+		virtual void      DrawLine(DrawerManager &drawer, bufferAnchor_ts &anchor);
+		virtual void      DrawLineEmpty(DrawerManager &drawer, int32_t lineScreenID);
+		// return the new cursor position ...
 		virtual void      AddChar(char * UTF8data);
 		virtual void      cursorMove(int32_t gtkKey);
 		virtual void      MouseSelectFromCursorTo(int32_t width, int32_t height);
 		virtual void      MouseEvent(int32_t width, int32_t height);
 		virtual void      MouseEventDouble(void);
 		virtual void      MouseEventTriple(void);
-		virtual void      ScrollDown(void);
-		virtual void      ScrollUp(void);
 		virtual void      RemoveLine(void);
 		virtual void      SelectAll(void);
 		virtual void      SelectNone(void);
 		virtual void      Undo(void);
 		virtual void      Redo(void);
+		
 		virtual void      SetCharset(charset_te newCharset) {};
+		
+		virtual void      ScrollDown(void); // must be deprecated
+		virtual void      ScrollUp(void);   // must be deprecated

 		//virtual void	SelectAll(void);
 		virtual void      Copy(int8_t clipboardID);
@ -113,6 +144,28 @@ class Buffer {
 		// naming
 		Edn::File         m_fileName;             //!< filename of the curent buffer
 		bool              m_haveName;             //!< to know if the file have a name or NOT
+
+	// anchor section
+	public:
+		void              AnchorAdd(int32_t anchorID);
+		void              AnchorRm(int32_t anchorID);
+		void              AnchorRedrawAll(int32_t anchorID);
+		virtual bool      AnchorGet(int32_t anchorID, bufferAnchor_ts & anchor);
+		virtual bool      AnchorNext(bufferAnchor_ts & anchor);
+		void              AnchorSetSize(int32_t anchorID, int32_t sizePixelX, int32_t sizePixelY);
+		void              AnchorSetStartOffset(int32_t anchorID, int32_t offsetX, int32_t offsetY);
+		
+	protected:
+		int32_t           m_lineWidth;
+		int32_t           m_lineHeight;
+		int32_t           AnchorRealId(int32_t anchorID);
+		int32_t           AnchorCurrentId(void);
+		void              AnchorForceRedrawAll(int32_t realAnchorId = -5000);
+		void              AnchorForceRedrawLine(int32_t lineID);
+		void              AnchorForceRedrawOffsef(int32_t offset);
+		Edn::VectorType<bufferAnchorReference_ts> m_AnchorList;              //!< list of all line anchor in the current buffer
+		int32_t           m_uniqueID;
+
 };


--- a/Sources/Buffer/BufferEmpty.cpp
+++ b/Sources/Buffer/BufferEmpty.cpp
@ -42,7 +42,8 @@
 */
 BufferEmpty::BufferEmpty()
 {
-
+	m_lineWidth = Display::GetFontWidth();
+	m_lineHeight = Display::GetFontHeight()*4;
 }

 /**
@ -67,32 +68,58 @@ BufferEmpty::~BufferEmpty(void)
 * @return ---
 *
 */
-int32_t	BufferEmpty::Display(DrawerManager &drawer)
+void BufferEmpty::DrawLine(DrawerManager &drawer, bufferAnchor_ts &anchor)
 {
-
+	EDN_DEBUG("Request draw : " << anchor.m_lineNumber);
 	ColorizeManager * myColorManager = ColorizeManager::getInstance();
 	// Get color : 
 	Colorize	*myColor = NULL;
-	// Clean Buffer
-	drawer.Clean(myColorManager->Get(COLOR_CODE_BASIC_BG) );
-	
-	myColor = myColorManager->Get("normal");
-	// Draw the 2 comments Lines :
-	drawer.Text(myColor, 20,20, "edn - Editeur De N'ours, l'Editeur Desoxyribo-Nucleique");
-	//drawer.Flush();
-	myColor = myColorManager->Get("commentDoxygen");
-	drawer.Text(myColor, 20,25 + Display::GetFontHeight(), "No Buffer Availlable to display");
-	drawer.Flush();
-	/*
-	myColor = myColorManager->Get(("SelectedText"));
-	drawer.Cursor(20, 50);
-	drawer.EndOfLine(20, 70);
-	drawer.Tabulation(myColor, 20, 90, 5);
-	drawer.UTF8UnknownElement(myColor, 20, 120, 3, false);
-	drawer.Flush();
-	*/
-	return ERR_NONE;
+	if (anchor.m_lineNumber == 0) {
+		// Clean Buffer
+		drawer.Clean(myColorManager->Get(COLOR_CODE_BASIC_BG) );
+		myColor = myColorManager->Get("normal");
+		drawer.Text(myColor, 20,20, "edn - Editeur De N'ours, l'Editeur Desoxyribo-Nucleique");
+	}
+	if (anchor.m_lineNumber == 1) {
+		myColor = myColorManager->Get("commentDoxygen");
+		drawer.Text(myColor, 20,25 + Display::GetFontHeight(), "No Buffer Availlable to display");
+	}
+	return;
 }



+
+bool BufferEmpty::AnchorGet(int32_t anchorID, bufferAnchor_ts & anchor)
+{
+	int32_t localID = AnchorRealId(anchorID);
+	if (localID >=0) {
+		EDN_DEBUG("Request anchor");
+		anchor.m_displaySize.x = m_AnchorList[localID].m_displaySize.x;
+		anchor.m_displaySize.y = m_AnchorList[localID].m_displaySize.y;
+		anchor.m_displayStart.x = m_AnchorList[localID].m_displayStart.x;
+		anchor.m_displayStart.y = m_AnchorList[localID].m_displayStart.y;
+		anchor.m_nbIterationMax = 2;
+		anchor.m_lineNumber = m_AnchorList[localID].m_lineId;
+		anchor.m_posStart = -1;
+		anchor.m_posStop = -1;
+		anchor.m_selectionPosStart = -1;
+		anchor.m_selectionPosStop = -1;
+		return true;
+	} else {
+		return false;
+	}
+}
+
+
+bool BufferEmpty::AnchorNext(bufferAnchor_ts & anchor)
+{
+	anchor.m_lineNumber++;
+	EDN_DEBUG("Anchor Next : " << anchor.m_lineNumber);
+	anchor.m_nbIterationMax--;
+	if (anchor.m_nbIterationMax<=0) {
+		return false;
+	}
+	return true;
+}
+
--- a/Sources/Buffer/BufferEmpty.h
+++ b/Sources/Buffer/BufferEmpty.h
@ -32,8 +32,10 @@ class BufferEmpty : public Buffer {
 	public:
 		BufferEmpty(void);
 		virtual ~BufferEmpty(void);
-		virtual int32_t	Display(DrawerManager &drawer);
-
+		void    DrawLine(DrawerManager &drawer, bufferAnchor_ts &anchor);
+		bool    AnchorGet(int32_t anchorID, bufferAnchor_ts & anchor);
+		bool    AnchorNext(bufferAnchor_ts & anchor);
+		
 };


--- a/Sources/Buffer/BufferText.cpp
+++ b/Sources/Buffer/BufferText.cpp
@ -37,8 +37,10 @@

 const uint32_t nbLineAllocatedInBase = 300;

-
-
+extern "C"
+{
+	const char * g_pointerForTheDisplayLine[] = {"%1d", "%2d","%3d","%4d","%5d","%6d","%7d","%8d","%9d","%d"};
+}

 /**
 * @brief
@ -50,27 +52,19 @@ const uint32_t nbLineAllocatedInBase = 300;
 */
 void BufferText::BasicInit(void)
 {
-	NeedToCleanEndPage = true;
-	// set the first element that is displayed
-	m_displayStartBufferPos = 0;
-	
 	// set the number of the lineNumber;
-	nbColoneForLineNumber = 1;
+	m_nbColoneForLineNumber = 1;
 	// init the link with the buffer manager
 	myColorManager = ColorizeManager::getInstance();
-	// Init Selection mode : 
-	SelectionEnd();
 	//EDN_INFO("Init");
 	// new mode : 
 	m_cursorPos = 0;
+	m_cursorPosPrevious = m_cursorPos;
 	m_cursorPreferredCol = -1;
 	m_cursorOn = true;
-	//m_cursorMode = CURSOR_DISPLAY_MODE_NORMAL;
-	m_displayStart.x = 0;
-	m_displayStart.y = 0;
-	m_displaySize.x = 200;
-	m_displaySize.y = 20;
-	m_displayLocalSyntax.idSequence = -1;
+	// set at the sustem buffer internal
+	m_lineWidth = Display::GetFontWidth();
+	m_lineHeight = Display::GetFontHeight();
 }


@ -93,7 +87,6 @@ void BufferText::NameChange(void)
 			m_EdnBuf.SetHLSystem(myHL);
 		}
 	}
-	
 }


@ -141,7 +134,6 @@ BufferText::BufferText(Edn::File &fileName) : Buffer(fileName)
 		SetModify(true);
 	}
 	UpdateWindowsPosition();
-	ForceReDraw(true);
 }


@ -181,28 +173,6 @@ BufferText::~BufferText(void)
 }


-void BufferText::SelectionStart(void)
-{
-	// start a nex selection
-	SelectionCheckMode();
-	//EDN_DEBUG("SELECT_start");
-}
-
-void BufferText::SelectionEnd(void)
-{
-	//EDN_DEBUG("SELECT_stop");
-}
-
-void BufferText::SelectionCheckMode(void)
-{
-	/*
-	if (true == globals::IsSetCtrl() ) {
-	} else {
-	}
-	*/
-}
-
-
 /**
 * @brief
 *
@ -213,7 +183,7 @@ void BufferText::SelectionCheckMode(void)
 */
 void BufferText::GetInfo(infoStatBuffer_ts &infoToUpdate)
 {
-
+	EDN_WARNING("TODO ...");
 }

 /**
@ -226,218 +196,185 @@ void BufferText::GetInfo(infoStatBuffer_ts &infoToUpdate)
 */
 void BufferText::SetLineDisplay(uint32_t lineNumber)
 {
-
+	EDN_WARNING("TODO ...");
 }

-void BufferText::DrawLineNumber(DrawerManager &drawer,char *myPrint,  int32_t lineNumber, int32_t positionY)
+
+
+
+void BufferText::DrawLineNumber(DrawerManager &drawer, int32_t lineNumber, int32_t positionY)
 {
+	int32_t letterHeight = Display::GetFontHeight();
 	char tmpLineNumber[50];
-	sprintf(tmpLineNumber, myPrint, lineNumber);
+	sprintf(tmpLineNumber, g_pointerForTheDisplayLine[m_nbColoneForLineNumber-1], lineNumber);
 	drawer.Text(myColorManager->Get(COLOR_CODE_LINE_NUMBER), 1, positionY, tmpLineNumber);
 }

-
 /**
- * @brief Display the curent buffer with all the probematic imposed by the xharset and the user contraint.
+ * @brief Update internal data of the pointer to display
 *
- * @param[in,out] drawer the basic user drawer of EDN.
+ * @param[in,out] ---
 *
- * @return 
+ * @return ---
 *
 */
-int32_t	BufferText::Display(DrawerManager &drawer)
+void BufferText::UpdatePointerNumber(void)
 {
-	int32_t letterHeight = Display::GetFontHeight();
-	int32_t letterWidth = Display::GetFontWidth();
-	// update the number of element that can be displayed
-	m_displaySize.x = (drawer.GetWidth()/letterWidth) + 1 - nbColoneForLineNumber;;
-	m_displaySize.y = (drawer.GetHeight()/letterHeight) + 1;
-	EDN_INFO("main DIPLAY " << m_displaySize.x << " char * " << m_displaySize.y << " char");
-	
-	int32_t selStart, selEnd, selRectStart, selRectEnd;
-	bool selIsRect;
-	int32_t selHave = m_EdnBuf.GetSelectionPos(SELECTION_PRIMARY, selStart, selEnd, selIsRect, selRectStart, selRectEnd);
-	
-	colorInformation_ts * HLColor = NULL;
-	
-	//displayLineNumber(drawer);
 	// get the number of line in the buffer
 	int32_t maxNumberLine = m_EdnBuf.NumberOfLines();
 	//int32_t maxNumberLine = 2096;
-	char *myPrint = NULL;
-	if (10 > maxNumberLine) {				nbColoneForLineNumber = 1;	myPrint = (char *)"%1d";
-	} else if (100 > maxNumberLine) {		nbColoneForLineNumber = 2;	myPrint = (char *)"%2d";
-	} else if (1000 > maxNumberLine) {		nbColoneForLineNumber = 3;	myPrint = (char *)"%3d";
-	} else if (10000 > maxNumberLine) {		nbColoneForLineNumber = 4;	myPrint = (char *)"%4d";
-	} else if (100000 > maxNumberLine) {	nbColoneForLineNumber = 5;	myPrint = (char *)"%5d";
-	} else if (1000000 > maxNumberLine) {	nbColoneForLineNumber = 6;	myPrint = (char *)"%6d";
-	} else if (1000000 > maxNumberLine) {	nbColoneForLineNumber = 7;	myPrint = (char *)"%7d";
-	} else if (10000000 > maxNumberLine) {	nbColoneForLineNumber = 8;	myPrint = (char *)"%8d";
-	} else if (100000000 > maxNumberLine) {	nbColoneForLineNumber = 9;	myPrint = (char *)"%9d";
-	} else {								nbColoneForLineNumber = 10;	myPrint = (char *)"%d";
+	if (10 > maxNumberLine) {				m_nbColoneForLineNumber = 1;
+	} else if (100 > maxNumberLine) {		m_nbColoneForLineNumber = 2;
+	} else if (1000 > maxNumberLine) {		m_nbColoneForLineNumber = 3;
+	} else if (10000 > maxNumberLine) {		m_nbColoneForLineNumber = 4;
+	} else if (100000 > maxNumberLine) {	m_nbColoneForLineNumber = 5;
+	} else if (1000000 > maxNumberLine) {	m_nbColoneForLineNumber = 6;
+	} else if (1000000 > maxNumberLine) {	m_nbColoneForLineNumber = 7;
+	} else if (10000000 > maxNumberLine) {	m_nbColoneForLineNumber = 8;
+	} else if (100000000 > maxNumberLine) {	m_nbColoneForLineNumber = 9;
+	} else {								m_nbColoneForLineNumber = 10;
 	}
+}
+
+
+void BufferText::DrawLine(DrawerManager &drawer, bufferAnchor_ts &anchor)
+{
+
+	int32_t letterHeight = Display::GetFontHeight();
+	int32_t letterWidth = Display::GetFontWidth();
+	int32_t positionY = letterHeight * (anchor.m_lineNumber - anchor.m_displayStart.y - 1);
+
+	int32_t idX = 0;
+	int32_t pixelX = m_nbColoneForLineNumber*letterWidth + 3;
+
+	Colorize * myColorNormal     = myColorManager->Get("normal");
+	Colorize * myColorSelected   = myColorManager->Get("SelectedText");
+	Colorize * selectColor = NULL;
+	colorInformation_ts * HLColor = NULL;
 	
-	uint32_t y = 0;
-	int32_t iii, new_i;
-	// Get color : 
-	Colorize *  myColor           = myColorManager->Get("normal");
-	Colorize *  myColorSel        = myColorManager->Get("SelectedText");
-	color_ts &  myColorSpace      = myColorManager->Get(COLOR_CODE_SPACE);
-	color_ts &  myColorTab        = myColorManager->Get(COLOR_CODE_TAB);
-	Colorize *  selectColor       = NULL;
+	// Regenerate the colorizing if necessary ...
+	displayHLData_ts  myDisplayLocalSyntax;
+	m_EdnBuf.HightlightOneLine(myDisplayLocalSyntax, anchor.m_posStart, anchor.m_posStop);
+	
+	// clean the current Line
+	drawer.Rectangle(myColorManager->Get(COLOR_CODE_BASIC_BG), 0, positionY, drawer.GetWidth(), letterHeight);
+	
+	DrawLineNumber(drawer, anchor.m_lineNumber, positionY);
+	
+	bool selHave = anchor.m_selectionPosStart == -1 ? false : true;
 	char displayChar[MAX_EXP_CHAR_LEN];
 	memset(displayChar, 0, sizeof(char)*MAX_EXP_CHAR_LEN);
-
-
-	int mylen = m_EdnBuf.Size();
-	int32_t x_base=nbColoneForLineNumber*letterWidth + 3;
-	uint32_t xx = 0;
-	int32_t idX = 0;
-	drawer.Clean(myColorManager->Get(COLOR_CODE_BASIC_BG));
-	int displayLines = 0;
-	// Regenerate the colorizing if necessary ...
-	m_EdnBuf.HightlightGenerateLines(m_displayLocalSyntax, m_displayStartBufferPos, m_displaySize.y);
-	GTimeVal timeStart;
-	g_get_current_time(&timeStart);
-
-	// draw the lineNumber : 
-	int32_t currentLineID = m_displayStart.y+1;
-	DrawLineNumber(drawer, myPrint, currentLineID, y);
-	for (iii=m_displayStartBufferPos; iii<mylen && displayLines < m_displaySize.y ; iii = new_i) {
-		//EDN_INFO("diplay element=" << iii);
-		int32_t pixelX = xx*letterWidth + x_base;
-		int displaywidth;
-		uint32_t currentChar = '\0';
-		new_i = iii;
-		displaywidth = m_EdnBuf.GetExpandedChar(new_i, idX, displayChar, currentChar);
-		//EDN_INFO("diplay element=" << new_i);
-		if (currentChar!='\n') {
-			selectColor = myColor;
-			//kwow size to display
-			int32_t widthToDisplay;
-			char * tmpDisplayOfset;
-			bool inTheScreen = true;
-			if (m_displayStart.x <= idX) {
-				// Normal display
-				tmpDisplayOfset = displayChar;
-				widthToDisplay = displaywidth;
-			} else if (m_displayStart.x < idX + displaywidth) {
-				// special case of partial display : 
-				widthToDisplay = idX + displaywidth - m_displayStart.x;
-				tmpDisplayOfset = displayChar + (displaywidth-widthToDisplay);
-			} else {
-				// Out of range ...
-				widthToDisplay = displaywidth;
-				tmpDisplayOfset = displayChar;
-				inTheScreen = false;
-			}
-			if (true==inTheScreen) {
-				HLColor = m_EdnBuf.GetElementColorAtPosition(m_displayLocalSyntax, iii);
-				if (NULL != HLColor) {
-					if (NULL != HLColor->patern) {
-						selectColor = HLColor->patern->GetColor();
-					}
+	int32_t iii;
+	for (iii=anchor.m_posStart; iii<anchor.m_posStop; ) {
+		uint32_t currentChar;
+		int32_t savePositionForCursor = iii;
+		int32_t  displaywidth = m_EdnBuf.GetExpandedChar(iii, idX, displayChar, currentChar);
+		selectColor = myColorNormal;
+		//kwow size to display
+		int32_t widthToDisplay;
+		char * tmpDisplayOfset;
+		bool inTheScreen = true;
+		if (anchor.m_displayStart.x <= idX) {
+			// Normal display
+			tmpDisplayOfset = displayChar;
+			widthToDisplay = displaywidth;
+		} else if (anchor.m_displayStart.x < idX + displaywidth) {
+			// special case of partial display : 
+			widthToDisplay = idX + displaywidth - anchor.m_displayStart.x;
+			tmpDisplayOfset = displayChar + (displaywidth-widthToDisplay);
+		} else {
+			// Out of range ...
+			widthToDisplay = displaywidth;
+			tmpDisplayOfset = displayChar;
+			inTheScreen = false;
+		}
+		if (true==inTheScreen) {
+			HLColor = m_EdnBuf.GetElementColorAtPosition(myDisplayLocalSyntax, savePositionForCursor);
+			if (NULL != HLColor) {
+				if (NULL != HLColor->patern) {
+					selectColor = HLColor->patern->GetColor();
 				}
-
-				// If user want to display space char : overwrite curent color
-				if(		' ' == currentChar
-					&&	true == globals::IsSetDisplaySpaceChar() )
+			}
+			// If user want to display space char : overwrite curent color
+			if(		' ' == currentChar
+				&&	true == globals::IsSetDisplaySpaceChar() )
+			{
+				//selectColor = myColorSelected;
+				//SpaceText(color_ts & SelectColor, int32_t x, int32_t y,int32_t nbChar)
+				if(	true == selHave
+					&&	anchor.m_selectionPosStart <= iii
+					&&	anchor.m_selectionPosStop   > iii)
 				{
-					//selectColor = myColorSel;
-					//SpaceText(color_ts & SelectColor, int32_t x, int32_t y,int32_t nbChar)
-
-					if(	true == selHave
-						&&	selStart <= iii
-						&&	selEnd   > iii)
-					{
-						drawer.SpaceText(myColorSel->GetBG(), pixelX ,y , 1);
-					} else if (true == selectColor->HaveBg()) {
-						drawer.SpaceText(selectColor->GetBG(), pixelX ,y , 1);
-					} else {
-						drawer.SpaceText(myColorSpace, pixelX ,y , 1);
-					}
-				} else if(		'\t' == currentChar
-							&&	true == globals::IsSetDisplaySpaceChar() )
-				{
-					if(	true == selHave
-						&&	selStart <= iii
-						&&	selEnd   > iii)
-					{
-						drawer.SpaceText(myColorSel->GetBG(), pixelX ,y , strlen(tmpDisplayOfset));
-					} else if (true == selectColor->HaveBg()) {
-						drawer.SpaceText(selectColor->GetBG(), pixelX ,y , strlen(tmpDisplayOfset));
-					} else  {
-						drawer.SpaceText(myColorTab, pixelX ,y , strlen(tmpDisplayOfset));
-					}
+					drawer.SpaceText(myColorSelected->GetBG(), pixelX ,positionY , 1);
+				} else if (true == selectColor->HaveBg()) {
+					drawer.SpaceText(selectColor->GetBG(), pixelX ,positionY , 1);
 				} else {
-					if(	true == selHave
-						&&	selStart <= iii
-						&&	selEnd   > iii)
-					{
-						selectColor = myColorSel;
-					}
-					if (currentChar <= 0x7F) {
-						drawer.Text(selectColor, pixelX ,y, tmpDisplayOfset);
-					} else {
-						drawer.Text(selectColor, pixelX ,y, displayChar);
-					}
+					drawer.SpaceText(myColorManager->Get(COLOR_CODE_SPACE), pixelX ,positionY , 1);
+				}
+			} else if(		'\t' == currentChar
+						&&	true == globals::IsSetDisplaySpaceChar() )
+			{
+				if(	true == selHave
+					&&	anchor.m_selectionPosStart <= iii
+					&&	anchor.m_selectionPosStop   > iii)
+				{
+					drawer.SpaceText(myColorSelected->GetBG(), pixelX ,positionY , strlen(tmpDisplayOfset));
+				} else if (true == selectColor->HaveBg()) {
+					drawer.SpaceText(selectColor->GetBG(), pixelX ,positionY , strlen(tmpDisplayOfset));
+				} else {
+					drawer.SpaceText(myColorManager->Get(COLOR_CODE_TAB), pixelX ,positionY , strlen(tmpDisplayOfset));
+				}
+			} else {
+				if(	true == selHave
+					&&	anchor.m_selectionPosStart <= iii
+					&&	anchor.m_selectionPosStop   > iii)
+				{
+					selectColor = myColorSelected;
+				}
+				if (currentChar <= 0x7F) {
+					drawer.Text(selectColor, pixelX ,positionY, tmpDisplayOfset);
+				} else {
+					drawer.Text(selectColor, pixelX ,positionY, displayChar);
 				}
-				xx+=widthToDisplay;
 			}
-			idX += displaywidth;
 		}
 		// display cursor : 
-		if (m_cursorPos == iii) {
+		if (m_cursorPos == savePositionForCursor) {
 			// display the cursor:
 			if (true == m_cursorOn) {
-				drawer.Cursor(pixelX, y+letterHeight);
+				drawer.Cursor(pixelX, positionY+letterHeight);
 				//m_cursorOn = false;
 			} else {
 				m_cursorOn = true;
 			}
 		}
-		// move to next line ...
-		if (currentChar=='\n') {
-			drawer.EndOfLine(pixelX, y+letterHeight);
-			drawer.Flush();
-			xx = 0;
-			idX =0;
-			y += letterHeight;
-			displayLines++;
-			currentLineID++;
-			DrawLineNumber(drawer, myPrint, currentLineID, y);
+		if (true==inTheScreen) {
+			pixelX += widthToDisplay*letterWidth;
 		}
+		idX += displaywidth;
 	}
 	// special case : the cursor is at the end of the buffer...
 	if (m_cursorPos == iii) {
 		// display the cursor:
 		if (true == m_cursorOn) {
-			drawer.Cursor(xx*letterWidth + x_base, y+letterHeight);
-			m_cursorOn = false;
+			drawer.Cursor(pixelX, positionY+letterHeight);
+			//m_cursorOn = false;
 		} else {
 			m_cursorOn = true;
 		}
 	}
-	drawer.Flush();
-	
-	GTimeVal timeStop;
-	g_get_current_time(&timeStop);
-	EDN_DEBUG("Display Generation = " << timeStop.tv_usec - timeStart.tv_usec << " micro-s");
-
-	return ERR_NONE;
 }


-
 void BufferText::GetMousePosition(int32_t width, int32_t height, int32_t &x, int32_t &y)
 {
-	x = (width - 3) / Display::GetFontWidth() - nbColoneForLineNumber;
+	x = (width - 3) / Display::GetFontWidth() - m_nbColoneForLineNumber;
 	y = height / Display::GetFontHeight();
 	if (x < 0) {
 		x = 0;
 	}
-	x += m_displayStart.x;
-	y += m_displayStart.y;
+	x += m_AnchorList[AnchorCurrentId()].m_displayStart.x;
+	y += m_AnchorList[AnchorCurrentId()].m_displayStart.y;
 	//EDN_DEBUG("BufferText::GetMousePosition(" << width << "," << height << "); ==> (" << x << "," << y << ")" );
 }

@ -471,8 +408,11 @@ void BufferText::MouseEvent(int32_t width, int32_t height)
 			m_cursorPreferredCol = posX;
 		}
 		m_EdnBuf.Unselect(SELECTION_PRIMARY);
+		/*
+		// for the redraw to permit to remove display error ...
+		AnchorForceRedrawAll();
+		*/

-		ForceReDraw(true);
 		UpdateWindowsPosition();
 	}
 }
@ -522,7 +462,6 @@ void BufferText::MouseSelectFromCursorTo(int32_t width, int32_t height)
 			m_EdnBuf.Select(SELECTION_PRIMARY, selStart, m_cursorPos);
 		}
 	}
-	ForceReDraw(true);
 	UpdateWindowsPosition();
 }

@ -541,8 +480,8 @@ void BufferText::MouseEventDouble(void)
 	int32_t beginPos, endPos;
 	if (true == m_EdnBuf.SelectAround(m_cursorPos, beginPos, endPos)) {
 		m_EdnBuf.Select(SELECTION_PRIMARY, beginPos, endPos);
+		m_cursorPosPrevious = m_cursorPos;
 		m_cursorPos = endPos;
-		ForceReDraw(true);
 	}
 	// no else
 }
@ -558,8 +497,8 @@ void BufferText::MouseEventDouble(void)
 void BufferText::MouseEventTriple(void)
 {
 	m_EdnBuf.Select(SELECTION_PRIMARY, m_EdnBuf.StartOfLine(m_cursorPos), m_EdnBuf.EndOfLine(m_cursorPos));
+	m_cursorPosPrevious = m_cursorPos;
 	m_cursorPos = m_EdnBuf.EndOfLine(m_cursorPos);
-	ForceReDraw(true);
 }

 void BufferText::RemoveLine(void)
@ -567,23 +506,29 @@ void BufferText::RemoveLine(void)
 	int32_t start = m_EdnBuf.StartOfLine(m_cursorPos);
 	int32_t stop = m_EdnBuf.EndOfLine(m_cursorPos);
 	m_EdnBuf.Remove(start, stop+1);
+	// for the redraw to permit to remove display error ...
+	AnchorForceRedrawAll();
 	SetInsertPosition(start);
-		SetModify(true);
+	SetModify(true);
 }

 void BufferText::SelectAll(void)
 {
 	m_EdnBuf.Select(SELECTION_PRIMARY, 0, m_EdnBuf.Size());
+	m_cursorPosPrevious = m_cursorPos;
 	m_cursorPos = m_EdnBuf.Size();
-	ForceReDraw(true);
+	AnchorForceRedrawAll();
 }

 void BufferText::SelectNone(void)
 {
 	m_EdnBuf.Unselect(SELECTION_PRIMARY);
-	ForceReDraw(true);
+	// for the redraw to permit to remove display error ...
+	AnchorForceRedrawAll();
 }

+#define SCROLL_NB_LINE (3)
+
 /**
 * @brief
 *
@ -594,7 +539,7 @@ void BufferText::SelectNone(void)
 */
 void BufferText::ScrollDown(void)
 {
-	MoveUpDown(3);
+	MoveUpDown(SCROLL_NB_LINE);
 }


@ -608,7 +553,7 @@ void BufferText::ScrollDown(void)
 */
 void BufferText::ScrollUp(void)
 {
-	MoveUpDown(-3);
+	MoveUpDown(-1 * SCROLL_NB_LINE);
 }


@ -622,44 +567,35 @@ void BufferText::ScrollUp(void)
 */
 void BufferText::MoveUpDown(int32_t ofset)
 {
-	m_displayLocalSyntax.idSequence = -1;
+	int32_t iii=AnchorCurrentId();
 	if (ofset >= 0) {
 		int32_t nbLine = m_EdnBuf.NumberOfLines();
-		if (m_displayStart.y+ofset+3 > nbLine) {
-			m_displayStart.y = nbLine-3;
+		if (m_AnchorList[iii].m_displayStart.y+ofset+3 > nbLine) {
+			m_AnchorList[iii].m_displayStart.y = nbLine-3;
+			AnchorForceRedrawOffsef(m_AnchorList[iii].m_displayStart.y-(nbLine-3));
 		} else {
-			m_displayStart.y += ofset;
+			AnchorForceRedrawOffsef(ofset);
+			m_AnchorList[iii].m_displayStart.y += ofset;
 		}
-		m_displayStartBufferPos = m_EdnBuf.CountForwardNLines(0, m_displayStart.y);
+		m_AnchorList[iii].m_bufferPos = m_EdnBuf.CountForwardNLines(0, m_AnchorList[iii].m_displayStart.y);
+		m_AnchorList[iii].m_lineId = m_AnchorList[iii].m_displayStart.y;
 	} else {
 		ofset *= -1;
-		if (m_displayStart.y < ofset) {
-			m_displayStart.y = 0;
-			m_displayStartBufferPos = 0;
+		if (m_AnchorList[iii].m_displayStart.y < ofset) {
+			AnchorForceRedrawOffsef(-1 * m_AnchorList[iii].m_displayStart.y);
+			m_AnchorList[iii].m_displayStart.y = 0;
+			m_AnchorList[iii].m_bufferPos = 0;
+			m_AnchorList[iii].m_lineId = 0;
 		} else {
-			m_displayStart.y -= ofset;
-			m_displayStartBufferPos = m_EdnBuf.CountForwardNLines(0, m_displayStart.y);
+			AnchorForceRedrawOffsef(-1 * ofset);
+			m_AnchorList[iii].m_displayStart.y -= ofset;
+			m_AnchorList[iii].m_bufferPos = m_EdnBuf.CountForwardNLines(0, m_AnchorList[iii].m_displayStart.y);
+			m_AnchorList[iii].m_lineId = m_AnchorList[iii].m_displayStart.y;
 		}
 	}
-	
 }


-
-/**
- * @brief
- *
- * @param[in,out] ---
- *
- * @return ---
- *
- */
-void BufferText::ForceReDraw(bool allElement)
-{
-	NeedToCleanEndPage = true;
-	//m_displayLocalSyntax.idSequence = -1;
-}
-
 void BufferText::SetInsertPosition(int32_t newPos, bool insertChar)
 {
 	int32_t SelectionStart, SelectionEnd, SelectionRectStart, SelectionRectEnd;
@ -668,7 +604,6 @@ void BufferText::SetInsertPosition(int32_t newPos, bool insertChar)
 	int32_t rememberCursorPos = m_cursorPos;

 	//EDN_DEBUG("newPos=" << newPos);
-
 	// unselect buffer:
 	m_EdnBuf.Unselect(SELECTION_PRIMARY);
 	/* make sure new position is ok, do nothing if it hasn't changed */
@ -679,6 +614,7 @@ void BufferText::SetInsertPosition(int32_t newPos, bool insertChar)
 		if (newPos > m_EdnBuf.Size()) {
 			newPos = m_EdnBuf.Size();
 		}
+		m_cursorPosPrevious = m_cursorPos;
 		m_cursorPos = newPos;
 	}
 	m_cursorPreferredCol = -1;
@ -785,19 +721,8 @@ bool BufferText::TextDMoveDown(int32_t offset)
 */
 void BufferText::cursorMove(int32_t gtkKey)
 {
+	int32_t tmplineID;
 	bool needUpdatePosition = true;
-	// check selection event ...
-	/*
-	if (true == globals::IsSetShift() ) {
-		if ( CURSOR_MODE_NORMAL == cursorMode) {
-			SelectionStart();
-		} else {
-			SelectionCheckMode();
-		}
-	} else {
-		SelectionEnd();
-	}
-	*/
 	switch(gtkKey) {
 #		ifdef USE_GTK_VERSION_3_0
 		case GDK_KEY_Left:
@ -842,7 +767,7 @@ void BufferText::cursorMove(int32_t gtkKey)
 		case GDK_Page_Up:
 #		endif
 			//EDN_INFO("keyEvent : <PAGE-UP>");
-			TextDMoveUp(m_displaySize.x);
+			TextDMoveUp(m_AnchorList[AnchorCurrentId()].m_displaySize.y);
 			break;
 #		ifdef USE_GTK_VERSION_3_0
 		case GDK_KEY_Page_Down:
@ -850,7 +775,7 @@ void BufferText::cursorMove(int32_t gtkKey)
 		case GDK_Page_Down:
 #		endif
 			//EDN_INFO("keyEvent : <PAGE-DOWN>");
-			TextDMoveDown(m_displaySize.x);
+			TextDMoveDown(m_AnchorList[AnchorCurrentId()].m_displaySize.y);
 			break;
 #		ifdef USE_GTK_VERSION_3_0
 		case GDK_KEY_Begin:
@ -889,57 +814,86 @@ void BufferText::cursorMove(int32_t gtkKey)
 */
 void BufferText::UpdateWindowsPosition(bool centerPage)
 {
-	if (centerPage == false) {
-		// Display position (Y mode):
-		//EDN_INFO("BufferText::UpdateWindowsPosition() m_displayStart(" << m_displayStart.x << "," << m_displayStart.y << ") m_displaySize(" << m_displaySize.x << "," <<m_displaySize.y << ")");
-		position_ts cursorPosition;
-		cursorPosition.y = m_EdnBuf.CountLines(0, m_cursorPos);
-		int32_t lineStartPos = m_EdnBuf.StartOfLine(m_cursorPos);
-		cursorPosition.x = m_EdnBuf.CountDispChars(lineStartPos, m_cursorPos);
-		//EDN_INFO("BufferText::UpdateWindowsPosition() curent cursor position : (" << cursorPosition.x << "," << cursorPosition.y << ")");
+	int32_t iii = AnchorCurrentId();
+	if (iii >=0) {
+		int32_t linePreviousID = m_EdnBuf.GetLinesIdWithRef(m_cursorPosPrevious, m_AnchorList[iii].m_bufferPos, m_AnchorList[iii].m_lineId);
+		AnchorForceRedrawLine(linePreviousID);
 		
-		if (m_displayStart.y > (int32_t)cursorPosition.y - globals::getNbLineBorder() ) {
-			m_displayStart.y = cursorPosition.y - globals::getNbLineBorder();
-			if (m_displayStart.y < 0) {
-				m_displayStart.y = 0;
-				ForceReDraw(true);
+		if (centerPage == false) {
+			// Display position (Y mode):
+			int32_t lineStartPos;
+			// Get current position of cursor :
+			position_ts cursorPosition;
+			EDN_WARNING("plop");
+			cursorPosition.y = m_EdnBuf.GetLinesIdWithRef(m_cursorPos, m_AnchorList[iii].m_bufferPos, m_AnchorList[iii].m_lineId);
+			AnchorForceRedrawLine(cursorPosition.y);
+			lineStartPos = m_EdnBuf.StartOfLine(m_cursorPos);
+			cursorPosition.x = m_EdnBuf.CountDispChars(lineStartPos, m_cursorPos);
+			//EDN_INFO(" curent cursor position : (" << cursorPosition.x << "," << cursorPosition.y << ")");
+			
+			position_ts displayPreviousStart = m_AnchorList[iii].m_displayStart;
+			//EDN_INFO(" m_displayStart(" << m_AnchorList[iii].m_displayStart.x << "," << m_AnchorList[iii].m_displayStart.y << ") m_displaySize(" << m_AnchorList[iii].m_displaySize.x << "," << m_AnchorList[iii].m_displaySize.y << ")");
+			if (m_AnchorList[iii].m_displayStart.y > (int32_t)cursorPosition.y - globals::getNbLineBorder() ) {
+				m_AnchorList[iii].m_displayStart.y = cursorPosition.y - globals::getNbLineBorder();
+				if (m_AnchorList[iii].m_displayStart.y < 0) {
+					m_AnchorList[iii].m_displayStart.y = 0;
+				}
+			} else if (m_AnchorList[iii].m_displayStart.y + m_AnchorList[iii].m_displaySize.y <= (int32_t)cursorPosition.y + globals::getNbLineBorder() ) {
+				m_AnchorList[iii].m_displayStart.y = cursorPosition.y - m_AnchorList[iii].m_displaySize.y + globals::getNbLineBorder() + 1;
 			}
-		} else if (m_displayStart.y + m_displaySize.y <= (int32_t)cursorPosition.y + globals::getNbLineBorder() ) {
-			m_displayStart.y = cursorPosition.y - m_displaySize.y + globals::getNbLineBorder() + 1;
-			ForceReDraw(true);
-		}
-		// Display position (X mode):
-		//EDN_INFO("cursorPosition X : " << cursorPosition.y << " windows " << m_displayStart.y << "=>" << m_displayStart.x + m_displaySize.x);
-		if (m_displayStart.x > cursorPosition.x - globals::getNbColoneBorder() ) {
-			m_displayStart.x = cursorPosition.x - globals::getNbColoneBorder();
-			if (m_displayStart.x < 0) {
-				m_displayStart.x = 0;
-				ForceReDraw(true);
+			// Display position (X mode):
+			//EDN_INFO("cursorPosition X : " << cursorPosition.y << " windows " << m_displayStart.y << "=>" << m_displayStart.x + m_displaySize.x);
+			if (m_AnchorList[iii].m_displayStart.x > cursorPosition.x - globals::getNbColoneBorder() ) {
+				m_AnchorList[iii].m_displayStart.x = cursorPosition.x - globals::getNbColoneBorder();
+				if (m_AnchorList[iii].m_displayStart.x < 0) {
+					m_AnchorList[iii].m_displayStart.x = 0;
+				}
+			} else if (m_AnchorList[iii].m_displayStart.x + m_AnchorList[iii].m_displaySize.x <= cursorPosition.x + globals::getNbColoneBorder() ) {
+				m_AnchorList[iii].m_displayStart.x = cursorPosition.x - m_AnchorList[iii].m_displaySize.x + globals::getNbColoneBorder() + 1;
 			}
-		} else if (m_displayStart.x + m_displaySize.x <= cursorPosition.x + globals::getNbColoneBorder() ) {
-			m_displayStart.x = cursorPosition.x - m_displaySize.x + globals::getNbColoneBorder() + 1;
-			ForceReDraw(true);
+			
+			//update the buffer position ID : 
+			m_AnchorList[iii].m_bufferPos = m_EdnBuf.CountForwardNLines(0, m_AnchorList[iii].m_displayStart.y);
+			m_AnchorList[iii].m_lineId = m_AnchorList[iii].m_displayStart.y;
+			if (m_AnchorList[iii].m_displayStart.x != displayPreviousStart.x) {
+				AnchorForceRedrawAll(iii);
+			} else {
+				if (m_AnchorList[iii].m_displayStart.y != displayPreviousStart.y) {
+					//EDN_WARNING("SELECT an ofset : displayPreviousStart.y=" << displayPreviousStart.y << "  m_AnchorList[iii].m_displayStart.y=" << m_AnchorList[iii].m_displayStart.y << " ==>" << m_AnchorList[iii].m_displayStart.y - displayPreviousStart.y);
+					//EDN_WARNING("SELECT ... offset = " << m_AnchorList[iii].m_BufferNumberLineOffset);
+					AnchorForceRedrawOffsef(m_AnchorList[iii].m_displayStart.y - displayPreviousStart.y);
+					//EDN_WARNING("SELECT ... offset = " << m_AnchorList[iii].m_BufferNumberLineOffset);
+				}
+				int32_t SelectionStart, SelectionEnd, SelectionRectStart, SelectionRectEnd;
+				bool SelectionIsRect;
+				bool haveSelectionActive = m_EdnBuf.GetSelectionPos(SELECTION_PRIMARY, SelectionStart, SelectionEnd, SelectionIsRect, SelectionRectStart, SelectionRectEnd);
+				if (true == haveSelectionActive) {
+					int32_t start = edn_min(linePreviousID, cursorPosition.y);
+					int32_t stop = edn_max(linePreviousID, cursorPosition.y);
+					//EDN_WARNING("SELECT force redraw range of lines : (" << start << "," << stop << ")");
+					for (int32_t jjj=start; jjj <= stop; jjj++) {
+						AnchorForceRedrawLine(jjj);
+					}
+				}
+			}
+		} else {
+			// center the line at the middle of the screen :
+			position_ts cursorPosition;
+			//EDN_DEBUG(" -------------------------------------------------");
+			cursorPosition.y = m_EdnBuf.GetLinesIdWithRef(m_cursorPos, m_AnchorList[iii].m_bufferPos, m_AnchorList[iii].m_lineId);
+			//EDN_DEBUG(" cursor position : " << m_cursorPos << " ==> ligne=" << cursorPosition.y);
+			cursorPosition.x = 0;
+			
+			m_AnchorList[iii].m_displayStart.x = 0;
+			//EDN_DEBUG(" display size : " << m_displaySize.y);
+			m_AnchorList[iii].m_displayStart.y = cursorPosition.y - m_AnchorList[iii].m_displaySize.y/2;
+			m_AnchorList[iii].m_displayStart.y = edn_max(m_AnchorList[iii].m_displayStart.y, 0);
+			m_AnchorList[iii].m_bufferPos = m_EdnBuf.CountForwardNLines(0, m_AnchorList[iii].m_displayStart.y);
+			m_AnchorList[iii].m_lineId = m_AnchorList[iii].m_displayStart.y;
+			//EDN_DEBUG(" display start : " << m_displayStart.x << "x" << m_displayStart.y);
+			//EDN_DEBUG(" -------------------------------------------------");
+			AnchorForceRedrawAll(iii);
 		}
-		
-		//update the buffer position ID : 
-		m_displayStartBufferPos = m_EdnBuf.CountForwardNLines(0, m_displayStart.y);
-	} else {
-		// center the line at the middle of the screen :
-		position_ts cursorPosition;
-		//EDN_DEBUG(" -------------------------------------------------");
-		cursorPosition.y = m_EdnBuf.CountLines(0, m_cursorPos);
-		//EDN_DEBUG(" cursor position : " << m_cursorPos << " ==> ligne=" << cursorPosition.y);
-		cursorPosition.x = 0;
-		
-		m_displayStart.x = 0;
-		//EDN_DEBUG(" display size : " << m_displaySize.y);
-		m_displayStart.y = cursorPosition.y - m_displaySize.y/2;
-		m_displayStart.y = edn_max(m_displayStart.y, 0);
-		
-		m_displayStartBufferPos = m_EdnBuf.CountForwardNLines(0, m_displayStart.y);
-		ForceReDraw(true);
-		//EDN_DEBUG(" display start : " << m_displayStart.x << "x" << m_displayStart.y);
-		//EDN_DEBUG(" -------------------------------------------------");
 	}
 }

@ -977,11 +931,13 @@ void BufferText::AddChar(char * UTF8data)
 					m_EdnBuf.ReplaceSelected(SELECTION_PRIMARY, tmpVect);
 					SetInsertPosition(SelectionStart+tmpVect.Size(), true);
 				} else {
+					int32_t tmpPos = m_cursorPos;
 					if (true == globals::IsSetShift() ) {
-						m_cursorPos = m_EdnBuf.UnIndent(SELECTION_PRIMARY);
+						tmpPos = m_EdnBuf.UnIndent(SELECTION_PRIMARY);
 					} else {
-						m_cursorPos = m_EdnBuf.Indent(SELECTION_PRIMARY);
+						tmpPos = m_EdnBuf.Indent(SELECTION_PRIMARY);
 					}
+					SetInsertPosition(tmpPos, true);
 				}
 			}
 			actionDone = true;
@ -1041,6 +997,7 @@ void BufferText::AddChar(char * UTF8data)
 			}
 			actionDone = true;
 		}
+		AnchorForceRedrawAll();
 	}
 	
 	if (false == actionDone) {
@ -1071,7 +1028,6 @@ void BufferText::AddChar(char * UTF8data)
 			}
 		}
 	}
-
 	SetModify(true);
 	UpdateWindowsPosition();
 }
@ -1101,6 +1057,8 @@ void BufferText::JumpAtLine(int32_t newLine)
 {
 	int32_t positionLine = m_EdnBuf.CountForwardNLines(0, newLine);
 	m_EdnBuf.Unselect(SELECTION_PRIMARY);
+	// for the redraw to permit to remove display error ...
+	AnchorForceRedrawAll();
 	EDN_DEBUG("jump at the line : " << newLine );
 	SetInsertPosition(positionLine);
 	UpdateWindowsPosition(true);
@ -1254,7 +1212,6 @@ void BufferText::Copy(int8_t clipboardID)
 */
 void BufferText::Cut(int8_t clipboardID)
 {
-
 	int32_t SelectionStart, SelectionEnd, SelectionRectStart, SelectionRectEnd;
 	bool SelectionIsRect;
 	bool haveSelectionActive = m_EdnBuf.GetSelectionPos(SELECTION_PRIMARY, SelectionStart, SelectionEnd, SelectionIsRect, SelectionRectStart, SelectionRectEnd);
@ -1265,10 +1222,11 @@ void BufferText::Cut(int8_t clipboardID)
 	if (true == haveSelectionActive ) {
 		EDN_INFO("REMOVE SELECTION");
 		m_EdnBuf.RemoveSelected(SELECTION_PRIMARY);
-		m_cursorPos = SelectionStart;
+		SetInsertPosition(SelectionStart, true);
 	}
+	// for the redraw to permit to remove display error ...
+	AnchorForceRedrawAll();
 	UpdateWindowsPosition();
-	ForceReDraw(true);
 	SetModify(true);
 }

@ -1294,15 +1252,15 @@ void BufferText::Paste(int8_t clipboardID)
 	if (true == haveSelectionActive ) {
 		// replace data
 		m_EdnBuf.ReplaceSelected(SELECTION_PRIMARY, mVect );
-		m_cursorPos = SelectionStart + mVect.Size();
+		SetInsertPosition(SelectionStart + mVect.Size(), true);
 	} else {
 		// insert data
 		m_EdnBuf.Insert(m_cursorPos, mVect);
-		m_cursorPos += mVect.Size();
+		SetInsertPosition(m_cursorPos + mVect.Size(), true);
 	}
-	
+	// for the redraw to permit to remove display error ...
+	AnchorForceRedrawAll();
 	UpdateWindowsPosition();
-	ForceReDraw(true);
 	SetModify(true);
 }

@ -1313,9 +1271,10 @@ void BufferText::Undo(void)
 	if (newPos >= 0) {
 		SetInsertPosition(newPos, true);
 		UpdateWindowsPosition();
-		ForceReDraw(true);
 		SetModify(true);
 	}
+	// for the redraw to permit to remove display error ...
+	AnchorForceRedrawAll();
 }

 void BufferText::Redo(void)
@ -1324,15 +1283,80 @@ void BufferText::Redo(void)
 	if (newPos >= 0) {
 		SetInsertPosition(newPos, true);
 		UpdateWindowsPosition();
-		ForceReDraw(true);
 		SetModify(true);
 	}
+	// for the redraw to permit to remove display error ...
+	AnchorForceRedrawAll();
 }


 void BufferText::SetCharset(charset_te newCharset)
 {
 	m_EdnBuf.SetCharsetType(newCharset);
-	ForceReDraw(true);
 }

+
+bool BufferText::AnchorGet(int32_t anchorID, bufferAnchor_ts & anchor)
+{
+	int32_t localID = AnchorRealId(anchorID);
+	if (localID >=0) {
+		// update internal sise of the width of lineID
+		UpdatePointerNumber();
+		// Updata uper size of display
+		anchor.m_displaySize.x = m_AnchorList[localID].m_displaySize.x;
+		anchor.m_displaySize.y = m_AnchorList[localID].m_displaySize.y;
+		anchor.m_displayStart.x = m_AnchorList[localID].m_displayStart.x;
+		anchor.m_displayStart.y = m_AnchorList[localID].m_displayStart.y;
+		anchor.m_nbIterationMax = anchor.m_displaySize.y;
+		// update to buffer position
+		anchor.m_lineNumber = m_AnchorList[localID].m_lineId+1;
+		anchor.m_posStart = m_AnchorList[localID].m_bufferPos;
+		if (anchor.m_posStart >= m_EdnBuf.Size()+1) {
+			return false;
+		}
+		anchor.m_posStop = m_EdnBuf.EndOfLine(anchor.m_posStart);
+		// Update selection current
+		int32_t selStart, selEnd, selRectStart, selRectEnd;
+		bool selIsRect;
+		bool selHave = m_EdnBuf.GetSelectionPos(SELECTION_PRIMARY, selStart, selEnd, selIsRect, selRectStart, selRectEnd);
+		if (false == selHave){
+			anchor.m_selectionPosStart = -1;
+			anchor.m_selectionPosStop = -1;
+		} else {
+			anchor.m_selectionPosStart = selStart+1;
+			anchor.m_selectionPosStop = selEnd+1;
+		}
+		EDN_DEBUG("SET in anchor " << m_AnchorList[localID].m_displaySize.y << " lines to display");
+		for(int32_t iii=0; iii</*edn_min(*/m_AnchorList[localID].m_displaySize.y/*, MAX_LINE_DISPLAYABLE_BY_BUFFER)*/; iii++) {
+			anchor.m_redrawLine[iii] = m_AnchorList[localID].m_redrawLine[iii];
+			m_AnchorList[localID].m_redrawLine[iii] = false;
+			/*if (iii > m_AnchorList[localID].m_displaySize.y - 4) {
+				anchor.m_redrawLine[iii] = true;
+			}*/
+		}
+		anchor.m_BufferNumberLineOffset = m_AnchorList[localID].m_BufferNumberLineOffset;
+		m_AnchorList[localID].m_BufferNumberLineOffset = 0;
+		
+		EDN_DEBUG("Request display : line=" << anchor.m_lineNumber << " (" << anchor.m_posStart << "," << anchor.m_posStop << ")");
+		EDN_DEBUG("     ==> select : (" << anchor.m_selectionPosStart << "," << anchor.m_selectionPosStop << ")");
+		return true;
+	} else {
+		return false;
+	}
+}
+
+
+bool BufferText::AnchorNext(bufferAnchor_ts & anchor)
+{
+	anchor.m_lineNumber++;
+	anchor.m_posStart = anchor.m_posStop+1;
+	if (anchor.m_posStart >= m_EdnBuf.Size()+1) {
+		return false;
+	}
+	anchor.m_posStop = m_EdnBuf.EndOfLine(anchor.m_posStart);
+	anchor.m_nbIterationMax--;
+	if (anchor.m_nbIterationMax<0) {
+		return false;
+	}
+	return true;
+}
--- a/Sources/Buffer/BufferText.h
+++ b/Sources/Buffer/BufferText.h
@ -36,65 +36,63 @@ typedef enum {
 	CURSOR_DISPLAY_MODE_NOT_FOCUS,
 } cursorDisplayMode_te;

+
 class BufferText : public Buffer {
 	public:
-		          BufferText(void);
-		          BufferText(Edn::File &fileName);
-		virtual  ~BufferText(void);
-		void      Save(void);
+		            BufferText(void);
+		            BufferText(Edn::File &fileName);
+		virtual    ~BufferText(void);
+		void        Save(void);
 		
-		void      GetInfo(infoStatBuffer_ts &infoToUpdate);
-		void      SetLineDisplay(uint32_t lineNumber);
+		void        GetInfo(infoStatBuffer_ts &infoToUpdate);
+		void        SetLineDisplay(uint32_t lineNumber);
 		
-		int32_t   Display(DrawerManager &drawer);
-		void      ForceReDraw(bool allElement);
-		void      AddChar(char * UTF8data);
-		void      cursorMove(int32_t gtkKey);
-		void      MouseSelectFromCursorTo(int32_t width, int32_t height);
-		void      MouseEvent(int32_t width, int32_t height);
-		void      MouseEventDouble(void);
-		void      MouseEventTriple(void);
-		void      ScrollDown(void);
-		void      ScrollUp(void);
+		void        DrawLine(DrawerManager &drawer, bufferAnchor_ts &anchor);
+		void        AddChar(char * UTF8data);
+		void        cursorMove(int32_t gtkKey);
+		void        MouseSelectFromCursorTo(int32_t width, int32_t height);
+		void        MouseEvent(int32_t width, int32_t height);
+		void        MouseEventDouble(void);
+		void        MouseEventTriple(void);
+		void        ScrollDown(void);
+		void        ScrollUp(void);

-		void      Copy(int8_t clipboardID);
-		void      Cut(int8_t clipboardID);
-		void      Paste(int8_t clipboardID);
+		void        Copy(int8_t clipboardID);
+		void        Cut(int8_t clipboardID);
+		void        Paste(int8_t clipboardID);

-		void      Search(Edn::String &data, bool back, bool caseSensitive, bool wrap, bool regExp);
-		void      Replace(Edn::String &data);
-		int32_t   FindLine(Edn::String &data);
-		void      JumpAtLine(int32_t newLine);
-		int32_t   GetCurrentLine(void);
+		void        Search(Edn::String &data, bool back, bool caseSensitive, bool wrap, bool regExp);
+		void        Replace(Edn::String &data);
+		int32_t     FindLine(Edn::String &data);
+		void        JumpAtLine(int32_t newLine);
+		int32_t     GetCurrentLine(void);
 		
-		void      RemoveLine(void);
-		void      SelectAll(void);
-		void      SelectNone(void);
-		void      Undo(void);
-		void      Redo(void);
-		void      SetCharset(charset_te newCharset);
+		void        RemoveLine(void);
+		void        SelectAll(void);
+		void        SelectNone(void);
+		void        Undo(void);
+		void        Redo(void);
+		void        SetCharset(charset_te newCharset);
+
+		bool        AnchorGet(int32_t anchorID, bufferAnchor_ts & anchor);
+		bool        AnchorNext(bufferAnchor_ts & anchor);
 	protected:
-		void      NameChange(void);
+		void        NameChange(void);

 	private:
 		// Display
-		bool                    NeedToCleanEndPage;         //!< if true, the end of the page need to be clean (arrive after a remove line)
-		uint32_t                nbColoneForLineNumber;      //!< number of colome used to display the line Number
-		ColorizeManager *       myColorManager;             //!< for the background color : 
-		
+		ColorizeManager *       myColorManager;                 //!< for the background color : 
+		int32_t                 m_nbColoneForLineNumber;        //!< number of colomn use for linenumber display
 		
 		// Direct buffer IO
-		EdnBuf                  m_EdnBuf;                   //!< buffer associated on this displayer
-		position_ts             m_displayStart;             //!< position where the display is starting
-		position_ts             m_displaySize;              //!< number of char displayable in the screan
-		int32_t                 m_displayStartBufferPos;    //!< position where the buffer start
-		// Cursor :
-		int32_t                 m_cursorPos;                //!< position in the buffer of the cursor
-		int32_t                 m_cursorPreferredCol;       //!< colomn of the last up and down ...
-		bool                    m_cursorOn;                 //!< the blink of the cursor ...
-		cursorDisplayMode_te    m_cursorMode;               //!< type of cursor Selected
+		EdnBuf                  m_EdnBuf;                       //!< buffer associated on this displayer
 		
-		displayHLData_ts        m_displayLocalSyntax;       //!< for the display of the local elements (display HL mode)
+		// Cursor :
+		int32_t                 m_cursorPosPrevious;            //!< Previous position in the buffer of the cursor
+		int32_t                 m_cursorPos;                    //!< position in the buffer of the cursor
+		int32_t                 m_cursorPreferredCol;           //!< colomn of the last up and down ...
+		bool                    m_cursorOn;                     //!< the blink of the cursor ...
+		cursorDisplayMode_te    m_cursorMode;                   //!< type of cursor Selected
 		
 		// internal function
 		void     BasicInit(void);
@ -103,10 +101,6 @@ class BufferText : public Buffer {
 		
 		void     CleanSelectLine(void);
 		
-		void     SelectionStart(void);
-		void     SelectionEnd(void);
-		void     SelectionCheckMode(void);
-		
 		void     CheckAndUpdateLineForModification(uint32_t lineID);
 		bool     TextDMoveUp(int32_t offset);
 		bool     TextDMoveDown(int32_t offset);
@ -114,7 +108,9 @@ class BufferText : public Buffer {
 		
 		void     GetMousePosition(int32_t width, int32_t height, int32_t &x, int32_t &y);
 		void     MoveUpDown(int32_t ofset);
-		void     DrawLineNumber(DrawerManager &drawer,char *myPrint,  int32_t lineNumber, int32_t positionY);
+		void     DrawLineNumber(DrawerManager &drawer, int32_t lineNumber, int32_t positionY);
+		void     UpdatePointerNumber(void);
+

 };

--- a/Sources/CustumWidget/BufferView/BufferView.cpp
+++ b/Sources/CustumWidget/BufferView/BufferView.cpp
@ -57,6 +57,8 @@ BufferView::BufferView(void) : MsgBroadcast("Buffer View", EDN_CAT_GUI)
 #	elif defined( USE_GTK_VERSION_2_0 )
 	GTK_WIDGET_SET_FLAGS(m_widget, GTK_CAN_FOCUS);
 #	endif
+	// Remove double-buffering ==> in the current case we can not get the previous display...
+	gtk_widget_set_double_buffered(m_widget, false);
 	// Focus Event
 	g_signal_connect(		G_OBJECT(m_widget), "focus_in_event",		G_CALLBACK(CB_focusGet),         this);
 	g_signal_connect(		G_OBJECT(m_widget), "focus_out_event",		G_CALLBACK(CB_focusLost),        this);
--- a/Sources/CustumWidget/CodeView/CodeView.cpp
+++ b/Sources/CustumWidget/CodeView/CodeView.cpp
@ -38,46 +38,53 @@

 CodeView::CodeView(void) : MsgBroadcast("Code View", EDN_CAT_WORK_AREA)
 {
-	m_bufferID = -1;
-	m_buttunOneSelected = false;
-	m_shawableAreaX = 0;
-	m_shawableAreaY = 0;
-
 	// Init link with the buffer Manager
 	m_bufferManager = BufferManager::getInstance();
 	m_colorManager = ColorizeManager::getInstance();

+	static int32_t staticIntLocal = 100;
+	m_displayUniqueId = staticIntLocal++;
+
+	m_bufferID = -1;
+	m_bufferManager->Get(m_bufferID)->AnchorAdd(m_displayUniqueId);
+	m_buttunOneSelected = false;
+	m_shawableAreaX = 0;
+	m_shawableAreaY = 0;
+
 	m_widget = gtk_drawing_area_new();
 	gtk_widget_set_size_request( m_widget, 200, 100);

-	gtk_widget_add_events(	m_widget, 
-								GDK_KEY_PRESS_MASK
-							|	GDK_BUTTON_PRESS_MASK
-							|	GDK_BUTTON_RELEASE_MASK
-							|	GDK_POINTER_MOTION_MASK
-							|	GDK_POINTER_MOTION_HINT_MASK);
+	gtk_widget_add_events( m_widget,
+	                          GDK_KEY_PRESS_MASK
+	                        | GDK_BUTTON_PRESS_MASK
+	                        | GDK_BUTTON_RELEASE_MASK
+	                        | GDK_POINTER_MOTION_MASK
+	                        | GDK_POINTER_MOTION_HINT_MASK);
 #	ifdef USE_GTK_VERSION_3_0
 	g_object_set(m_widget,"can-focus", TRUE, NULL);
 #	elif defined( USE_GTK_VERSION_2_0 )
 	GTK_WIDGET_SET_FLAGS(m_widget, GTK_CAN_FOCUS);
 #	endif
+	// Remove double-buffering ==> in the current case we can not get the previous display...
+	gtk_widget_set_double_buffered(m_widget, false);
+	
 	// Focus Event
-	g_signal_connect(		G_OBJECT(m_widget), "focus_in_event",		G_CALLBACK(CB_focusGet),		 this);
-	g_signal_connect(		G_OBJECT(m_widget), "focus_out_event",		G_CALLBACK(CB_focusLost),		 this);
+	g_signal_connect(       G_OBJECT(m_widget), "focus_in_event",       G_CALLBACK(CB_focusGet),         this);
+	g_signal_connect(       G_OBJECT(m_widget), "focus_out_event",      G_CALLBACK(CB_focusLost),        this);
 	// Keyboard Event
-	g_signal_connect_after(	G_OBJECT(m_widget), "key_press_event",		G_CALLBACK(CB_keyboardEvent),	 this);
-	g_signal_connect_after(	G_OBJECT(m_widget), "key_release_event",	G_CALLBACK(CB_keyboardEvent),	 this);
+	g_signal_connect_after( G_OBJECT(m_widget), "key_press_event",      G_CALLBACK(CB_keyboardEvent),    this);
+	g_signal_connect_after( G_OBJECT(m_widget), "key_release_event",    G_CALLBACK(CB_keyboardEvent),    this);
 	// Mouse Event
-	g_signal_connect(		G_OBJECT(m_widget), "button_press_event",	G_CALLBACK(CB_mouseButtonEvent), this);
-	g_signal_connect(		G_OBJECT(m_widget), "button_release_event",	G_CALLBACK(CB_mouseButtonEvent), this);
-	g_signal_connect(		G_OBJECT(m_widget), "motion_notify_event",	G_CALLBACK(CB_mouseMotionEvent), this);
-	g_signal_connect(		G_OBJECT(m_widget), "scroll-event",			G_CALLBACK(CB_mouseScrollEvent), this);
+	g_signal_connect(       G_OBJECT(m_widget), "button_press_event",   G_CALLBACK(CB_mouseButtonEvent), this);
+	g_signal_connect(       G_OBJECT(m_widget), "button_release_event", G_CALLBACK(CB_mouseButtonEvent), this);
+	g_signal_connect(       G_OBJECT(m_widget), "motion_notify_event",  G_CALLBACK(CB_mouseMotionEvent), this);
+	g_signal_connect(       G_OBJECT(m_widget), "scroll-event",         G_CALLBACK(CB_mouseScrollEvent), this);
 	// Display Event
-	g_signal_connect(		G_OBJECT(m_widget), "realize",				G_CALLBACK(CB_displayInit), 	 this);
+	g_signal_connect(       G_OBJECT(m_widget), "realize",              G_CALLBACK(CB_displayInit),      this);
 #	ifdef USE_GTK_VERSION_3_0
-	g_signal_connect(		G_OBJECT(m_widget), "draw",					G_CALLBACK(CB_displayDraw),		this);
+	g_signal_connect(       G_OBJECT(m_widget), "draw",                 G_CALLBACK(CB_displayDraw),      this);
 #	elif defined( USE_GTK_VERSION_2_0 )
-	g_signal_connect(		G_OBJECT(m_widget), "expose_event",			G_CALLBACK(CB_displayDraw),		this);
+	g_signal_connect(       G_OBJECT(m_widget), "expose_event",         G_CALLBACK(CB_displayDraw),      this);
 #	endif
 }

@ -98,8 +105,9 @@ void CodeView::OnMessage(int32_t id, int32_t dataID)
 	{
 		case EDN_MSG__CURRENT_CHANGE_BUFFER_ID:
 			//EDN_INFO("Select a new Buffer ... " << dataID);
+			m_bufferManager->Get(m_bufferID)->AnchorRm(m_displayUniqueId);
 			m_bufferID = dataID;
-			m_bufferManager->Get(m_bufferID)->ForceReDraw(true);
+			m_bufferManager->Get(m_bufferID)->AnchorAdd(m_displayUniqueId);
 			// request the dispplay of the curent Editor
 			SendMessage(EDN_MSG__BUFFER_CHANGE_CURRENT, m_bufferID);
 			break;
@ -184,11 +192,11 @@ void CodeView::OnMessage(int32_t id, int32_t dataID)
 			break;
 	}
 	// Force redraw of the widget
-	gtk_widget_queue_draw(m_widget);
+	gtk_widget_queue_draw_area(m_widget, 0, 0, m_shawableAreaX, m_shawableAreaY);
+	
 }


-
 gboolean CodeView::CB_displayDraw( GtkWidget *widget, GdkEventExpose *event, gpointer data)
 {
 	CodeView * self = reinterpret_cast<CodeView*>(data);
@ -197,6 +205,7 @@ gboolean CodeView::CB_displayDraw( GtkWidget *widget, GdkEventExpose *event, gpo
 #	ifdef USE_GTK_VERSION_3_0
 	GtkAllocation allocation;
 	gtk_widget_get_allocation(widget, &allocation);
+	EDN_INFO("GTK+ request a diplay of : "<< allocation.width <<"px * "<< allocation.height <<"px");
 	bool needRedrawAll = false;
 	if (self->m_shawableAreaX != allocation.width) {
 		needRedrawAll = true;
@ -207,6 +216,7 @@ gboolean CodeView::CB_displayDraw( GtkWidget *widget, GdkEventExpose *event, gpo
 		self->m_shawableAreaY = allocation.height;
 	}
 #	elif defined( USE_GTK_VERSION_2_0)
+	EDN_INFO("GTK+ request a diplay of : "<< widget->allocation.width <<"px * "<< widget->allocation.height <<"px");
 	bool needRedrawAll = false;
 	if (self->m_shawableAreaX != widget->allocation.width) {
 		needRedrawAll = true;
@ -217,32 +227,51 @@ gboolean CodeView::CB_displayDraw( GtkWidget *widget, GdkEventExpose *event, gpo
 		self->m_shawableAreaY = widget->allocation.height;
 	}
 #	endif
-	if (true == needRedrawAll) {
-		//updateScrollElement();
-		self->m_bufferManager->Get(self->m_bufferID)->ForceReDraw(true);
-	}
-	EDN_INFO("Request a display of : " << self->m_shawableAreaX << "px * "<<  self->m_shawableAreaY<<"px");
-	/*
-	EDN_INFO("widget width=%d", widget->allocation.width);
-	EDN_INFO("widget height=%d", widget->allocation.height);
-	*/
+	EDN_INFO("Edn request a display of : " << self->m_shawableAreaX << "px * "<<  self->m_shawableAreaY<<"px");

-	//EDN_INFO("BufferView Display");
 	// Get the color Manager :
 	ColorizeManager *myColorManager = NULL;
 	myColorManager = ColorizeManager::getInstance();
 	
-	//(void)m_bufferManager->Get(m_bufferID)->Display(m_displayParameters, m_shawableAreaX, m_shawableAreaY);
-	DrawerManager monDrawer(widget, self->m_shawableAreaX, self->m_shawableAreaY);
-	//EDN_INFO("Display buffer ID = " << m_bufferID);
-	(void)self->m_bufferManager->Get(self->m_bufferID)->Display(monDrawer);
-//	EDN_WARNING("Must display here ... ");
+	Buffer * tmpBuf = self->m_bufferManager->Get(self->m_bufferID);
+
+	#ifndef NDEBUG
+		GTimeVal timeStart;
+		g_get_current_time(&timeStart);
+	#endif
+	bufferAnchor_ts anchor;
+	
+	tmpBuf->AnchorSetSize(self->m_displayUniqueId, self->m_shawableAreaX, self->m_shawableAreaY);
+	bool enableToWrite = tmpBuf->AnchorGet(self->m_displayUniqueId, anchor);
+	DrawerManager monDrawer(widget, self->m_shawableAreaX, self->m_shawableAreaY, Display::GetFontHeight()*anchor.m_BufferNumberLineOffset);
+	
+	int32_t currentLineID = 0;
+	while (true == enableToWrite) {
+		if (true == anchor.m_redrawLine[currentLineID]) {
+			#ifndef NDEBUG
+				EDN_DEBUG("draw line=" << currentLineID << " realID=" << anchor.m_lineNumber );
+			#endif
+			tmpBuf->DrawLine(monDrawer, anchor);
+		}
+		enableToWrite = tmpBuf->AnchorNext(anchor);
+		currentLineID++;
+	}
+	monDrawer.Flush();
+	
+	// Need to clean the end of windows (sometimes)...
+	if(currentLineID<anchor.m_displaySize.y+1) {
+		for (int32_t iii=currentLineID; iii < anchor.m_displaySize.y; iii++) {
+			tmpBuf->DrawLineEmpty(monDrawer, iii);
+		}
+	}
+	#ifndef NDEBUG
+		GTimeVal timeStop;
+		g_get_current_time(&timeStop);
+		EDN_DEBUG("Display Generation = " << timeStop.tv_usec - timeStart.tv_usec << " micro-s ==> " << (timeStop.tv_usec - timeStart.tv_usec)/1000. << "ms");
+	#endif
 	return TRUE;
 }

-
-
-
 // sur : émis lors du premier affichage de la GtkDrawingArea
 gboolean CodeView::CB_displayInit( GtkWidget *widget, gpointer data)
 {
@ -250,22 +279,15 @@ gboolean CodeView::CB_displayInit( GtkWidget *widget, gpointer data)
 #	ifdef USE_GTK_VERSION_3_0
 	GtkAllocation allocation;
 	gtk_widget_get_allocation(widget, &allocation);
-	int32_t size_x = allocation.width;
-	int32_t size_y = allocation.height;
-	
+	EDN_INFO("GTK+ request a diplay of : "<< allocation.width <<"px * "<< allocation.height <<"px");
 	self->m_shawableAreaX = allocation.width;
 	self->m_shawableAreaY = allocation.height;
 #	elif defined( USE_GTK_VERSION_2_0)
-	int32_t size_x = widget->allocation.width;
-	int32_t size_y = widget->allocation.height;
-	
+	EDN_INFO("GTK+ request a diplay of : "<< widget->allocation.width <<"px * "<< widget->allocation.height <<"px");
 	self->m_shawableAreaX = widget->allocation.width;
 	self->m_shawableAreaY = widget->allocation.height;
 #	endif
-	EDN_INFO("Request a diplay of : "<< size_x <<"px * "<< size_y <<"px");
-
 	gtk_widget_queue_draw( widget );
-
 	return TRUE;
 }

@ -276,6 +298,12 @@ gint CodeView::CB_focusGet(	GtkWidget *widget, GdkEventFocus *event, gpointer da
 	GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
 #	endif
 	self->SendMessage(EDN_MSG__BUFFER_CHANGE_CURRENT, self->m_bufferID);
+#	ifdef USE_GTK_VERSION_2_0
+	Buffer * tmpBuf = self->m_bufferManager->Get(self->m_bufferID);
+	tmpBuf->AnchorRedrawAll(self->m_displayUniqueId);
+	// Force redraw of the widget
+	gtk_widget_queue_draw_area(self->m_widget, 0, 0, self->m_shawableAreaX, self->m_shawableAreaY);
+#	endif
 	EDN_INFO("Focus - In");
 	return FALSE;
 }
--- a/Sources/CustumWidget/CodeView/CodeView.h
+++ b/Sources/CustumWidget/CodeView/CodeView.h
@ -54,6 +54,10 @@ class CodeView : public MsgBroadcast
 	private:
 		// main windows widget : 
 		GtkWidget *         m_widget;
+		DrawerManager *     m_Drawer;
+		int32_t             m_displayUniqueId;
+		//position_ts         m_displayStart;                 //!< position where the display is starting
+		//position_ts         m_displaySize;                  //!< number of char displayable in the screan
 		// récupération des proprieter général...
 		BufferManager *     m_bufferManager;
 		ColorizeManager *   m_colorManager;
--- a/Sources/GuiTools/MainWindows/MainWindows.cpp
+++ b/Sources/GuiTools/MainWindows/MainWindows.cpp
@ -165,8 +165,11 @@ void MainWindows::SetTitle(Edn::File &fileName, bool isModify)
 	}
 	tmp += "Edn";
 	gtk_window_set_title(GTK_WINDOW(m_mainWindow), tmp.c_str());
+	tmp = "  ";
 	if (fileName.GetShortFilename() != "") {
 		tmp = fileName.GetFolder();
+		tmp += "/";
+		tmp += fileName.GetShortFilename();
 	} else {
 		tmp = "Edn";
 	}
--- a/Sources/tools/Display/Display.cpp
+++ b/Sources/tools/Display/Display.cpp
@ -40,7 +40,7 @@
 #define FONT_ITALIC_YES	(1)


-// Variables privé du namespace
+// Variables privé du namespace
 #define		POLICE_NAME		"Monospace"

 #ifdef USE_GTK_VERSION_3_0
@ -127,6 +127,7 @@ cairo_font_face_t * Display::GetFont(bool bold, bool italic)
 #undef __class__
 #define __class__	"DrawerManager"

+//#define megaplop  mlkjmlk
 /**
 * @brief DrawerManager constructor : generate a memoryDC where we can draw everything...
 *
@ -139,25 +140,48 @@ cairo_font_face_t * Display::GetFont(bool bold, bool italic)
 * @return ---
 *
 */
-DrawerManager::DrawerManager(GtkWidget * widget, int32_t x, int32_t y)
+DrawerManager::DrawerManager(GtkWidget * widget, int32_t x, int32_t y, int32_t scrollOffset)
 {
-
 	m_size.x = x;
 	m_size.y = y;
 	m_haveWork = false;
-	// Create the Cairo Element
 #   if USE_GTK_VERSION_3_0
-	m_cairo = gdk_cairo_create(gtk_widget_get_window(widget));
+	m_windows = gtk_widget_get_window(widget);
 #   elif USE_GTK_VERSION_2_0
-	m_cairo = gdk_cairo_create(widget->window);
+	m_windows = widget->window;
 #   endif
-	//cairo_translate(m_cairo, 0, 7);
-	cairo_set_source_rgb(m_cairo, 0, 0, 0);
-	cairo_paint(m_cairo);
+
+	// Double buffer with previous copy management :
+	{
+		// Create the Cairo context from the current windows
+		cairo_t * cairoWindows = gdk_cairo_create(m_windows);
+		// inform that we nee a double buffer
+		GdkRectangle myRect = {0, 0, x, y};
+		gdk_window_begin_paint_rect(m_windows, &myRect);
+		// Create the Cairo context from the double Buffer just created
+		m_cairo = gdk_cairo_create(m_windows);
+		// Copy the previous display data from the current display to the double buffer area:
+		cairo_surface_t * drawableSurface = cairo_get_target(cairoWindows);
+		TranslateVertical(-1* scrollOffset);
+		cairo_set_source_surface(m_cairo, drawableSurface, 0, 0);
+		cairo_paint(m_cairo);
+		TranslateVertical(scrollOffset);
+		//cairo_surface_destroy(drawableSurface);
+		cairo_destroy(cairoWindows);
+	}
+	
+	cairo_scale(m_cairo, 1.0, 1.0);
+	
+#	ifndef NDEBUG
+		// for Test only : this remove slowly the old line that is not rewritten
+		cairo_set_source_rgb(m_cairo, 0, 0, 0);
+		cairo_set_source_rgba(m_cairo, 1, 1, 1, 0.05);
+		cairo_paint(m_cairo);
+#	endif
 	cairo_set_font_size(m_cairo, POLICE_SIZE);
 	m_dataToDisplay[0] = '\0';
 	
-	cairo_scale(m_cairo, 1.0, 1.0);
+	m_nbElement = 0;
 	
 	// http://cairographics.org/FAQ/#clear_a_surface
 	// http://gtk.developpez.com/faq/?page=gtkwidget#GTK_WIDGET_transparent
@ -166,10 +190,6 @@ DrawerManager::DrawerManager(GtkWidget * widget, int32_t x, int32_t y)
 	//cairo_paint(m_cairo);
 	//cairo_fill(m_cairo);
 	//cairo_stroke (m_cairo);
-
-	
-	
-	
 }


@ -185,6 +205,9 @@ DrawerManager::DrawerManager(GtkWidget * widget, int32_t x, int32_t y)
 */
 DrawerManager::~DrawerManager()
 {
+	// call the painting of the double buffer in the displayed current buffer
+	gdk_window_end_paint(m_windows);
+	// Destroy cairo context
 	cairo_destroy(m_cairo);
 }

@ -289,9 +312,8 @@ void DrawerManager::Flush(void)
 		int32_t letterHeight = Display::GetFontHeight();
 		if (true == m_selectColor->HaveBg() ) {
 			int32_t letterWidth = Display::GetFontWidth();
-			int32_t stringLen = m_nbElement;
 			// generate Clean BG:
-			DirectRectangle(m_selectColor, m_pos.x, m_pos.y, letterWidth*stringLen, letterHeight);
+			DirectRectangle(m_selectColor, m_pos.x, m_pos.y, letterWidth*m_nbElement, letterHeight);
 		}
 		cairo_move_to(m_cairo, m_pos.x, m_pos.y+letterHeight-4);
 		m_selectColor->ApplyFG(m_cairo);
@ -350,9 +372,10 @@ void DrawerManager::DirectRectangle(Colorize *SelectColor, int32_t x, int32_t y,
 	// flush
 	cairo_fill(m_cairo);
 }
+
+
 void DrawerManager::DirectRectangle(color_ts &SelectColor, int32_t x, int32_t y, int32_t width, int32_t height)
 {
-
 	cairo_set_source_rgb(m_cairo, SelectColor.red, SelectColor.green, SelectColor.blue);
 	// set postion
 	cairo_rectangle(m_cairo, x, y, width, height);
@ -430,6 +453,7 @@ void DrawerManager::Cursor(int32_t x, int32_t y)
 		cairo_rel_line_to(m_cairo, 0, -letterHeight);
 	}
 	cairo_stroke(m_cairo);
+	//cairo_set_fill_rule(m_cairo, CAIRO_FILL_RULE_EVEN_ODD);
 	cairo_fill(m_cairo);
 }

@ -577,6 +601,14 @@ void DrawerManager::UTF8UnknownElement(Colorize *SelectColor, int32_t x, int32_t
 }


+void DrawerManager::TranslateVertical(int32_t nbPixelTranslation)
+{
+	Flush();
+	//scale((xmax-xmin)/W, (ymax-ymin)/H)
+	cairo_translate(m_cairo, 0, nbPixelTranslation);
+	cairo_fill(m_cairo);
+	cairo_paint(m_cairo);
+}


 /* Basic axample with cairo and pango...
--- a/Sources/tools/Display/Display.h
+++ b/Sources/tools/Display/Display.h
@ -52,7 +52,7 @@ class DrawerManager;
 class DrawerManager {
 	public:
 		// Constructeur
-		DrawerManager(GtkWidget * widget, int32_t x, int32_t y);
+		DrawerManager(GtkWidget * widget, int32_t x, int32_t y, int32_t scrollOffset=0);
 		~DrawerManager();

 		void    Rectangle(Colorize *SelectColor, int32_t x, int32_t y, int32_t width, int32_t height);
@ -72,6 +72,7 @@ class DrawerManager {
 		void    Flush(void);
 		int32_t GetWidth(void) { return m_size.x; };
 		int32_t GetHeight(void) { return m_size.y; };
+		void    TranslateVertical(int32_t nbPixelTranslation);

 	private:
 		void    DirectRectangle(Colorize *SelectColor, int32_t x, int32_t y, int32_t width, int32_t height);
@ -85,7 +86,7 @@ class DrawerManager {

 		position_ts     m_size;                                 //!< Total size
 		cairo_t *       m_cairo;                                //!< Cairo Layout pointer
-		
+		GdkWindow *     m_windows;                              //!< remember the current widget ==> for some internal problems
 };


--- a/Sources/tools/EdnBuf/EdnBuf.cpp
+++ b/Sources/tools/EdnBuf/EdnBuf.cpp
@ -646,8 +646,22 @@ int32_t EdnBuf::CountLines(int32_t startPos, int32_t endPos)
 	EdnVectorBuf::Iterator myPosIt = m_data.Position(startPos);
 	int32_t lineCount = 0;
 	
+	#ifndef NDEBUG
+		GTimeVal timeStart;
+		if (0 == startPos) {
+			g_get_current_time(&timeStart);
+		}
+	#endif
+	
 	while (myPosIt) {
 		if (myPosIt.Position() == endPos) {
+			#ifndef NDEBUG
+				if (0 == startPos) {
+					GTimeVal timeStop;
+					g_get_current_time(&timeStop);
+					EDN_ERROR("Count line (" << startPos << "," << endPos << ") time = " << timeStop.tv_usec - timeStart.tv_usec << " micro-s ==> " << (timeStop.tv_usec - timeStart.tv_usec)/1000. << "ms");
+				}
+			#endif
 			return lineCount;
 		}
 		if ('\n' == *myPosIt) {
@ -655,6 +669,76 @@ int32_t EdnBuf::CountLines(int32_t startPos, int32_t endPos)
 		}
 		myPosIt++;
 	}
+	
+	#ifndef NDEBUG
+		if (0 == startPos) {
+			GTimeVal timeStop;
+			g_get_current_time(&timeStop);
+			EDN_ERROR("Count line (" << startPos << "," << endPos << ") time = " << timeStop.tv_usec - timeStart.tv_usec << " micro-s ==> " << (timeStop.tv_usec - timeStart.tv_usec)/1000. << "ms");
+		}
+	#endif
+	
+	return lineCount;
+}
+
+/**
+ * @brief Get the Id of the line where is positionned the current pos element
+ * 
+ * @param[in] pos posithion in the buffer where we need to know the current line
+ * @param[in] refPos reference position
+ * @param[in] refLine reference Line of the position
+ * 
+ * @return the current line ID of the pos
+ * 
+ */
+int32_t EdnBuf::GetLinesIdWithRef(int32_t pos, int32_t refPos, int32_t refLine)
+{
+	EdnVectorBuf::Iterator myPosIt = m_data.Position(refPos);
+	int32_t lineCount = refLine;
+	
+	#ifndef NDEBUG
+		GTimeVal timeStart;
+		g_get_current_time(&timeStart);
+	#endif
+	if (pos == refPos) {
+		return refLine;
+	} else if (pos > refPos) {
+		while (myPosIt) {
+			if (myPosIt.Position() == pos) {
+				#ifndef NDEBUG
+					GTimeVal timeStop;
+					g_get_current_time(&timeStop);
+					EDN_DEBUG("Count line " << pos << " with ref(" << refPos << "," << refPos << ") time = " << timeStop.tv_usec - timeStart.tv_usec << " micro-s ==> " << (timeStop.tv_usec - timeStart.tv_usec)/1000. << "ms");
+				#endif
+				return lineCount;
+			}
+			if ('\n' == *myPosIt) {
+				lineCount++;
+			}
+			myPosIt++;
+		}
+	} else {
+		while (myPosIt) {
+			if (myPosIt.Position() == pos) {
+				#ifndef NDEBUG
+					GTimeVal timeStop;
+					g_get_current_time(&timeStop);
+					EDN_DEBUG("Count line " << pos << " with ref(" << refPos << "," << refPos << ") time = " << timeStop.tv_usec - timeStart.tv_usec << " micro-s ==> " << (timeStop.tv_usec - timeStart.tv_usec)/1000. << "ms");
+				#endif
+				return lineCount;
+			}
+			if ('\n' == *myPosIt) {
+				lineCount--;
+			}
+			myPosIt--;
+		}
+	}
+	#ifndef NDEBUG
+		GTimeVal timeStop;
+		g_get_current_time(&timeStop);
+		EDN_DEBUG("Count line " << pos << " with ref(" << refPos << "," << refPos << ") time = " << timeStop.tv_usec - timeStart.tv_usec << " micro-s ==> " << (timeStop.tv_usec - timeStart.tv_usec)/1000. << "ms");
+	#endif
+	
 	return lineCount;
 }

@ -685,12 +769,21 @@ int32_t EdnBuf::CountLines(void)
 	EdnVectorBuf::Iterator myPosIt = m_data.Begin();
 	int32_t lineCount = 0;
 	
+	#ifndef NDEBUG
+		GTimeVal timeStart;
+		g_get_current_time(&timeStart);
+	#endif
 	while(myPosIt) {
 		if ('\n' == *myPosIt) {
 			lineCount++;
 		}
 		myPosIt++;
 	}
+	#ifndef NDEBUG
+		GTimeVal timeStop;
+		g_get_current_time(&timeStop);
+		EDN_DEBUG("count total number of line time = " << timeStop.tv_usec - timeStart.tv_usec << " micro-s ==> " << (timeStop.tv_usec - timeStart.tv_usec)/1000. << "ms");
+	#endif
 	return lineCount;
 }

@ -720,6 +813,12 @@ void EdnBuf::CountNumberOfLines(void)
 */
 int32_t EdnBuf::CountForwardNLines(int32_t startPos, int32_t nLines)
 {
+	#ifndef NDEBUG
+		GTimeVal timeStart;
+		if (0 == startPos) {
+			g_get_current_time(&timeStart);
+		}
+	#endif
 	if (nLines == 0) {
 		return startPos;
 	} else if (startPos > m_data.Size() ) {
@ -739,6 +838,14 @@ int32_t EdnBuf::CountForwardNLines(int32_t startPos, int32_t nLines)
 		}
 		myPosIt++;
 	}
+	
+	#ifndef NDEBUG
+		if (0 == startPos) {
+			GTimeVal timeStop;
+			g_get_current_time(&timeStop);
+			EDN_DEBUG("get poiner line (pos=" << startPos << "=>" << nLines << "lines) time = " << timeStop.tv_usec - timeStart.tv_usec << " micro-s ==> " << (timeStop.tv_usec - timeStart.tv_usec)/1000. << "ms");
+		}
+	#endif
 	//EDN_INFO("   ==> (2) at position=" << myPosIt.Position() );
 	return myPosIt.Position();
 }
--- a/Sources/tools/EdnBuf/EdnBuf.h
+++ b/Sources/tools/EdnBuf/EdnBuf.h
@ -105,6 +105,7 @@ class EdnBuf {
 		int32_t CharWidth(              char c,      int32_t indent); 	// TODO : rework this
 		int32_t CountDispChars(         int32_t lineStartPos, int32_t targetPos);
 		int32_t CountForwardDispChars(  int32_t lineStartPos, int32_t nChars);
+		int32_t GetLinesIdWithRef(      int32_t pos, int32_t refPos, int32_t refLine);
 		int32_t CountLines(             int32_t startPos, int32_t endPos);
 		int32_t CountLines(             void);
 		int32_t CountLines(             Edn::VectorType<int8_t> &data);
@ -164,7 +165,8 @@ class EdnBuf {
 		void                                    FindMainHighLightPosition(int32_t startPos, int32_t endPos, int32_t &startId, int32_t &stopId, bool backPreviousNotEnded);
 	public:
 		void                                    SetHLSystem(  Highlight * newHLSystem);
-		void                                    HightlightGenerateLines(displayHLData_ts & MData, int32_t startPos, int32_t nbLines);
+		void                                    HightlightOneLine(displayHLData_ts & MData, int32_t HLStart, int32_t HLStop);
+		void                                    HightlightGenerateLines(displayHLData_ts & MData, int32_t startPos, int32_t nbLines); // TODO : deprecated ...
 		colorInformation_ts *                   GetElementColorAtPosition(displayHLData_ts & MData, int32_t pos);
 	private:
 		colorInformation_ts *                   GetElementColorAtPosition(int32_t pos, int32_t &starPos);
--- a/Sources/tools/EdnBuf/EdnBuf_HighLight.cpp
+++ b/Sources/tools/EdnBuf/EdnBuf_HighLight.cpp
@ -286,6 +286,71 @@ colorInformation_ts *EdnBuf::GetElementColorAtPosition(int32_t pos, int32_t &sta
 	return NULL;
 }

+//#define COUNT_TIME plop
+
+void EdnBuf::HightlightOneLine(displayHLData_ts & MData, int32_t HLStart, int32_t HLStop)
+{
+	MData.posHLPass1 = 0;
+	MData.posHLPass2 = 0;
+	if (NULL == m_Highlight) {
+		return;
+	}
+	#ifdef COUNT_TIME
+		GTimeVal timeStart;
+		g_get_current_time(&timeStart);
+	#endif
+	int32_t startId, stopId;
+	// find element previous
+	FindMainHighLightPosition(HLStart, HLStop, startId, stopId, true);
+
+	int32_t k;
+	//EDN_DEBUG("List of section between : "<< startId << " & " << stopId);
+	int32_t endSearch = stopId+1;
+	if (-1 == stopId) {
+		endSearch = m_HLDataPass1.Size();
+	}
+	for (k=edn_max(startId, 0); k<endSearch; k++) {
+		// empty section :
+		if (0==k) {
+			if (HLStart < m_HLDataPass1[k].beginStart) {
+				//EDN_DEBUG("  ==> (empty section 1 ) k="<<k<<" start="<<HLStart<<" stop="<<m_HLDataPass1[k].beginStart );
+				m_Highlight->Parse2(HLStart,
+									m_HLDataPass1[k].beginStart,
+									MData.HLData,
+									m_data);
+			} // else : nothing to do ...
+		} else {
+			//EDN_DEBUG("  ==> (empty section 2 ) k="<<k<<" start="<<m_HLDataPass1[k-1].endStop<<" stop="<<m_HLDataPass1[k].beginStart );
+			m_Highlight->Parse2(m_HLDataPass1[k-1].endStop,
+								m_HLDataPass1[k].beginStart,
+								MData.HLData,
+								m_data);
+		}
+		// under section :
+		//EDN_DEBUG("  ==> (under section   ) k="<<k<<" start="<<m_HLDataPass1[k].beginStart<<" stop="<<m_HLDataPass1[k].endStop << " subSectionOfID=" << 99999999);
+		// TODO : ...
+	}
+	if (endSearch == (int32_t)m_HLDataPass1.Size() ){
+		if (m_HLDataPass1.Size() != 0) {
+			//EDN_DEBUG("  ==> (empty section 3 ) k="<<k<<" start="<<m_HLDataPass1[k-1].endStop<<" stop="<<HLStop );
+			m_Highlight->Parse2(m_HLDataPass1[k-1].endStop,
+								HLStop,
+								MData.HLData,
+								m_data);
+		} else {
+			//EDN_DEBUG("  ==> (empty section 4 ) k="<<k<<" start=0 stop="<<HLStop );
+			m_Highlight->Parse2(0,
+								HLStop,
+								MData.HLData,
+								m_data);
+		}
+	}
+	#ifdef COUNT_TIME
+		GTimeVal timeStop;
+		g_get_current_time(&timeStop);
+		EDN_DEBUG("Display reAnnalyse = " << timeStop.tv_usec - timeStart.tv_usec << " micro-s");
+	#endif
+}


 void EdnBuf::HightlightGenerateLines(displayHLData_ts & MData, int32_t HLStart, int32_t nbLines)
@ -354,7 +419,6 @@ void EdnBuf::HightlightGenerateLines(displayHLData_ts & MData, int32_t HLStart,
 		g_get_current_time(&timeStop);
 		EDN_DEBUG("Display reAnnalyse = " << timeStop.tv_usec - timeStart.tv_usec << " micro-s");
 	}
-
 }


--- a/Sources/tools/charset/charset.cpp
+++ b/Sources/tools/charset/charset.cpp
@ -422,7 +422,11 @@ static uint32_t Utf8_GetValue(UTF8Element_ts &Element)
 int32_t strUtf8Len(const char *input_UTF8)
 {
 	int32_t count = 0;
-	int32_t size = strlen(input_UTF8);
+	int32_t sizeInput = strlen(input_UTF8);
+	int32_t size = sizeInput;
+	if (size>20) {
+		EDN_DEBUG("check SIZE...");
+	}
 	uint8_t tmpSize;
 	bool baseValid;
 	while (size > 0) {
@ -1139,7 +1143,11 @@ void ConvertInput(GdkEventKey *event, char* Utf8Out, bool &controlKey, bool &mov
 #		endif
 			key = '?';
 			break;
+#		ifdef USE_GTK_VERSION_3_0
+		case GDK_KEY_Caps_Lock:
+#		elif USE_GTK_VERSION_2_0
 		case GDK_Caps_Lock:
+#       endif
 			controlKey = true;
 			break;
 		default:
--- a/avancement.boo
+++ b/avancement.boo
@ -1,7 +1,7 @@
 # action a faire (ordonner par révision) :
 * 0.2.X :
 	- gui : Amelioration du full-screen et du display de base (sans l'entete de la fenetre)
-	- gui : Mise en place d'un display ligne par ligne
+	- gui : display partielle de la fenetre
 	- gui : ascenceur quand nécessaire
 	- gui : Demander la création de nouveaux fichier quand il n'existe pas (a l'ouverture en ligne de commande)
 	- sys : Mise en place des colorisation de base pour le
@ -10,7 +10,6 @@
 	- sys : replace TAB with space when Tab is pressed
 	- sys : Catch F[1-12] ==> for user personal event
 	- BUG : Correction du bug des entré bizard tel que les chapot et les guillemets
-	- BUG : de sélection quand la ligne est pleine et la première ligne séctionnée. ==> regarder après avoir fait le display ligne par ligne...
 	- BUG : de copier coller sur les éàè ...
 	- BUG : les caractère multiples type chapot ...
 	- BUG : italique non généré
--- a/data/lang_asm.xml
+++ b/data/lang_asm.xml
@ -39,7 +39,7 @@
 		</rule>
 		<rule name="my comment">
 			<color>comment</color>
-			<start>//</start>
+			<start>(//|@)</start>
 			<end>\n</end>
 			<EscapeChar>\</EscapeChar>
 		</rule>
--- a/data/lang_matlab.xml
+++ b/data/lang_matlab.xml
@ -28,7 +28,7 @@
 		</rule>
 		<rule name="global inclusion">
 			<color>preprocesseur</color>
-			<start>global </start>
+			<start>global( |\t)+</start>
 			<end>\n</end>
 			<EscapeChar>\</EscapeChar>
 		</rule>
--- a/test_transparence.c
+++ b/test_transparence.c
@ -20,7 +20,7 @@ static gboolean expose(GtkWidget *widget, GdkEventExpose *event, gpointer user_d
 static void clicked(GtkWindow *win, GdkEventButton *event, gpointer user_data);


-#	if USE_GTK_VERSION_3_0
+#if USE_GTK_VERSION_3_0
 const GdkRGBA color = { 1.0, 1.0, 0.0, 0.0};
 #endif

@ -36,6 +36,9 @@ int main(int argc, char **argv)

    gtk_widget_set_app_paintable(window, TRUE);

+	// Remove double-buffering ==> in the current case we can not get the previous display...
+	gtk_widget_set_double_buffered(window, FALSE);
+	
 #	if USE_GTK_VERSION_3_0
 	g_signal_connect(G_OBJECT(window), "draw", G_CALLBACK(expose), NULL);
 #	elif USE_GTK_VERSION_2_0
@ -60,17 +63,17 @@ int main(int argc, char **argv)
 	                                     &color);
 */
 #endif
-    gtk_window_set_decorated(GTK_WINDOW(window), FALSE);
-    gtk_widget_add_events(window, GDK_BUTTON_PRESS_MASK);
-    g_signal_connect(G_OBJECT(window), "button-press-event", G_CALLBACK(clicked), NULL);
+    //gtk_window_set_decorated(GTK_WINDOW(window), FALSE);
+    //gtk_widget_add_events(window, GDK_BUTTON_PRESS_MASK);
+   /* //g_signal_connect(G_OBJECT(window), "button-press-event", G_CALLBACK(clicked), NULL);

    GtkWidget* fixed_container = gtk_fixed_new();
    gtk_container_add(GTK_CONTAINER(window), fixed_container);
    GtkWidget* button = gtk_button_new_with_label("button1");
    gtk_widget_set_size_request(button, 100, 100);
    gtk_container_add(GTK_CONTAINER(fixed_container), button);
-
-    screen_changed(window, NULL, NULL);
+*/
+    //screen_changed(window, NULL, NULL);

    gtk_widget_show_all(window);
    gtk_main();
@ -114,20 +117,36 @@ static void screen_changed(GtkWidget *widget, GdkScreen *old_screen, gpointer us

 static gboolean expose(GtkWidget *widget, GdkEventExpose *event, gpointer userdata)
 {
-   return FALSE;
-#	if USE_GTK_VERSION_3_0
-	cairo_t *cr = gdk_cairo_create(gtk_widget_get_window(widget));
-#	elif USE_GTK_VERSION_2_0
-	cairo_t *cr = gdk_cairo_create(widget->window);
-#	endif
-    if (TRUE == supports_alpha)
-        cairo_set_source_rgba (cr, 0.0, 0.0, 1.0, 0.3); /* transparent */
-    else
-        cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); /* opaque white */

-    /* draw the background */
-    cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
-    cairo_paint (cr);
+	//return FALSE;
+	GdkWindow * m_windows = NULL;
+#   if USE_GTK_VERSION_3_0
+	m_windows = gtk_widget_get_window(widget);
+#   elif USE_GTK_VERSION_2_0
+	m_windows = widget->window;
+#   endif
+	gtk_widget_shape_combine_mask(widget, NULL, 0, 0);
+	cairo_t *cr = gdk_cairo_create(m_windows);
+	
+	
+	
+	//if (TRUE == supports_alpha) {
+		cairo_set_source_rgba (cr, 0.0, 0.0, 1.0, 0.2); // transparent
+	/*} else {
+		cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); // opaque white 
+	}*/
+	/* draw the background */
+	cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+	cairo_paint (cr);
+	
+    /* draw a circle */
+    int width, height;
+    gtk_window_get_size(GTK_WINDOW(widget), &width, &height);
+
+    cairo_set_source_rgba(cr, 1, 0.2, 0.2, 0.6);
+    cairo_arc(cr, width / 2, height / 2, (width < height ? width : height) / 2 - 8 , 0, 2 * 3.14);
+    cairo_fill(cr);
+    cairo_stroke(cr);

    cairo_destroy(cr);

--- a/test_transparence2.c
+++ b/test_transparence2.c
@ -0,0 +1,292 @@
+/*******************************************************************************
+**3456789 123456789 123456789 123456789 123456789 123456789 123456789 123456789 
+**      10        20        30        40        50        60        70        80
+**
+** program:
+**    input_shape_test
+**
+** created:
+**    19.2.2006
+**
+** last change:
+**    20.2.2006
+**
+** author:
+**    Mirco "MacSlow" Mueller <macslow@bangang.de>
+**
+** license:
+**    GPL
+**
+** notes:
+**    - this is a test I did to figure out how to use input-shapes (XShape 1.1)
+**    - opens a decoration-less and transparent gtk+-window and draws a red
+**      cross with a circle around it
+**    - only the parts drawn will be "draggable"
+**    - window can be dragged around with LMB-drag
+**    - window can be resized with MMB-drag (the input-shape also resizes!)
+**    - window can be exited with ESC or q
+**    - needs a compositing manager to run in order to look as intended
+**    - tested with xcompmgr and compiz
+**    - tested with gtk+-2.8.11 and gtk+-2.9.0 (CVS-head)
+**
+** bugs:
+**    - there are no size-checks done for the input-shape, so I don't know what
+**      will happen, if you make the window super large
+**
+** todo:
+**    - nothing
+**
+** compile with:
+**    gcc `pkg-config --cflags --libs gtk+-2.0` input_shape_test.c -o input_shape_test
+**
+*******************************************************************************/
+
+#include <math.h>
+#include <gdk/gdkkeysyms.h>
+#include <gtk/gtk.h>
+#if !GTK_CHECK_VERSION(2,9,0)
+#include <X11/Xlib.h>
+#include <X11/extensions/shape.h>
+#include <gdk/gdkx.h>
+#endif
+
+#define WIN_WIDTH 300
+#define WIN_HEIGHT 300
+
+gint g_iCurrentWidth = WIN_WIDTH;
+gint g_iCurrentHeight = WIN_HEIGHT;
+
+void update_input_shape (GtkWidget* pWindow, int iWidth, int iHeight);
+void on_alpha_screen_changed (GtkWidget* pWidget, GdkScreen* pOldScreen, GtkWidget* pLabel);
+void render (cairo_t* pCairoContext, gint iWidth, gint iHeight);
+gboolean on_expose (GtkWidget* pWidget, GdkEventExpose* pExpose);
+gboolean on_key_press (GtkWidget* pWidget, GdkEventKey* pKey, gpointer userData);
+gboolean on_button_press (GtkWidget* pWidget, GdkEventButton* pButton, GdkWindowEdge edge);
+gboolean on_configure (GtkWidget* pWidget, GdkEventConfigure* pEvent, gpointer data);
+#if !GTK_CHECK_VERSION(2,9,0)
+void do_shape_combine_mask (GdkWindow* window, GdkBitmap* mask, gint x, gint y);
+#endif
+void update_input_shape (GtkWidget* pWindow, int iWidth, int iHeight);
+
+void on_alpha_screen_changed (GtkWidget* pWidget,
+							  GdkScreen* pOldScreen,
+							  GtkWidget* pLabel)
+{                       
+	GdkScreen* pScreen = gtk_widget_get_screen (pWidget);
+	GdkColormap* pColormap = gdk_screen_get_rgba_colormap (pScreen);
+      
+	if (!pColormap)
+		pColormap = gdk_screen_get_rgb_colormap (pScreen);
+
+	gtk_widget_set_colormap (pWidget, pColormap);
+}
+
+void render (cairo_t* pCairoContext, gint iWidth, gint iHeight)
+{
+	cairo_scale (pCairoContext, (double) iWidth, (double) iHeight);
+	cairo_set_source_rgba (pCairoContext, 1.0f, 1.0f, 1.0f, 0.0f);
+	cairo_set_operator (pCairoContext, CAIRO_OPERATOR_SOURCE);
+	cairo_paint (pCairoContext);
+	cairo_set_source_rgba (pCairoContext, 1.0f, 0.0f, 0.0f, 0.75f);
+	cairo_set_line_width (pCairoContext, 0.1f);
+	cairo_move_to (pCairoContext, 0.15f, 0.15f);
+	cairo_line_to (pCairoContext, 0.85f, 0.85f);
+	cairo_move_to (pCairoContext, 0.85f, 0.15f);
+	cairo_line_to (pCairoContext, 0.15f, 0.85f);
+	cairo_stroke (pCairoContext);
+	cairo_arc (pCairoContext, 0.5f, 0.5f, 0.45f, 0.0f, M_PI/180.0f * 360.0f);
+	cairo_stroke (pCairoContext);
+}
+
+gboolean on_expose (GtkWidget*		pWidget,
+					GdkEventExpose*	pExpose)
+{
+	gint iWidth;
+	gint iHeight;
+	cairo_t* pCairoContext = NULL;
+
+	pCairoContext = gdk_cairo_create (pWidget->window);
+	if (!pCairoContext)
+		return FALSE;
+
+	gtk_window_get_size (GTK_WINDOW (pWidget), &iWidth, &iHeight);
+	render (pCairoContext, iWidth, iHeight);
+	cairo_destroy (pCairoContext);
+
+	return FALSE;
+}
+
+gboolean on_configure (GtkWidget* pWidget,
+					   GdkEventConfigure* pEvent,
+					   gpointer userData)
+{
+	gint iNewWidth = pEvent->width;
+	gint iNewHeight = pEvent->height;
+
+	if (iNewWidth != g_iCurrentWidth || iNewHeight != g_iCurrentHeight)
+	{
+		update_input_shape (pWidget, iNewWidth, iNewHeight);
+		g_iCurrentWidth = iNewWidth;
+		g_iCurrentHeight = iNewHeight;
+	}
+
+	return FALSE;
+}
+
+gboolean on_key_press (GtkWidget*	pWidget,
+					   GdkEventKey*	pKey,
+					   gpointer		userData)
+{
+	gint iWidth;
+	gint iHeight;
+
+	if (pKey->type == GDK_KEY_PRESS)
+	{
+		switch (pKey->keyval)
+		{
+			case GDK_Escape :
+			case GDK_q :
+				gtk_main_quit ();
+			break;
+		}
+	}
+
+	return FALSE;
+}
+
+gboolean on_button_press (GtkWidget* pWidget,
+						  GdkEventButton* pButton,
+						  GdkWindowEdge edge)
+{
+	if (pButton->type == GDK_BUTTON_PRESS)
+	{
+		if (pButton->button == 1)
+			gtk_window_begin_move_drag (GTK_WINDOW (gtk_widget_get_toplevel (pWidget)),
+										pButton->button,
+										pButton->x_root,
+										pButton->y_root,
+										pButton->time);
+		if (pButton->button == 2)
+			gtk_window_begin_resize_drag (GTK_WINDOW (gtk_widget_get_toplevel (pWidget)),
+										  edge,
+										  pButton->button,
+										  pButton->x_root,
+										  pButton->y_root,
+										  pButton->time);
+    }
+
+	return FALSE;
+}
+
+#if !GTK_CHECK_VERSION(2,9,0)
+/* this is piece by piece taken from gtk+ 2.9.0 (CVS-head with a patch applied
+regarding XShape's input-masks) so people without gtk+ >= 2.9.0 can compile and
+run input_shape_test.c */
+void do_shape_combine_mask (GdkWindow* window,
+							GdkBitmap* mask,
+							gint x,
+							gint y)
+{
+	Pixmap pixmap;
+	int ignore;
+	int maj;
+	int min;
+
+	if (!XShapeQueryExtension (GDK_WINDOW_XDISPLAY (window), &ignore, &ignore))
+		return;
+
+	if (!XShapeQueryVersion (GDK_WINDOW_XDISPLAY (window), &maj, &min))
+		return;
+
+	/* for shaped input we need at least XShape 1.1 */
+	if (maj != 1 && min < 1)
+		return;
+
+	if (mask)
+		pixmap = GDK_DRAWABLE_XID (mask);
+	else
+	{
+		x = 0;
+		y = 0;
+		pixmap = None;
+	}
+
+	XShapeCombineMask (GDK_WINDOW_XDISPLAY (window),
+					   GDK_DRAWABLE_XID (window),
+					   ShapeInput,
+					   x,
+					   y,
+					   pixmap,
+					   ShapeSet);
+}
+#endif
+
+void update_input_shape (GtkWidget* pWindow, int iWidth, int iHeight)
+{
+	static GdkBitmap* pShapeBitmap = NULL;
+	static cairo_t* pCairoContext = NULL;
+
+	pShapeBitmap = (GdkBitmap*) gdk_pixmap_new (NULL, iWidth, iHeight, 1);
+	if (pShapeBitmap)
+	{
+		pCairoContext = gdk_cairo_create (pShapeBitmap);
+		if (cairo_status (pCairoContext) == CAIRO_STATUS_SUCCESS)
+		{
+			render (pCairoContext, iWidth, iHeight);
+			cairo_destroy (pCairoContext);
+#if !GTK_CHECK_VERSION(2,9,0)
+			do_shape_combine_mask (pWindow->window, NULL, 0, 0);
+			do_shape_combine_mask (pWindow->window, pShapeBitmap, 0, 0);
+#else
+			gtk_widget_input_shape_combine_mask (pWindow, NULL, 0, 0);
+			gtk_widget_input_shape_combine_mask (pWindow, pShapeBitmap, 0, 0);
+#endif
+		}
+		g_object_unref ((gpointer) pShapeBitmap);
+	}
+}
+
+int main (int argc, char** argv)
+{
+	GtkWidget* pWindow = NULL;
+	GdkBitmap* pShapeMaskBitmap = NULL;
+
+	gtk_init (&argc, &argv);
+
+	pWindow = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+	on_alpha_screen_changed (pWindow, NULL, NULL);
+	gtk_widget_set_app_paintable (pWindow, TRUE);
+	gtk_window_set_decorated (GTK_WINDOW (pWindow), FALSE);
+	gtk_window_set_resizable (GTK_WINDOW (pWindow), TRUE);
+	gtk_window_set_title (GTK_WINDOW (pWindow), "gtk+/XShape 1.1 test");
+	gtk_widget_set_size_request (pWindow, g_iCurrentWidth, g_iCurrentHeight);
+	gtk_widget_add_events (pWindow, GDK_BUTTON_PRESS_MASK);
+	gtk_widget_show (pWindow);
+
+	g_signal_connect (G_OBJECT (pWindow),
+					  "destroy",
+					  G_CALLBACK (gtk_main_quit),
+					  NULL);
+	g_signal_connect (G_OBJECT (pWindow),
+					  "expose-event",
+					  G_CALLBACK (on_expose),
+					  NULL);
+	g_signal_connect (G_OBJECT (pWindow),
+					  "configure-event",
+					  G_CALLBACK (on_configure),
+					  NULL);
+	g_signal_connect (G_OBJECT (pWindow),
+					  "key-press-event",
+					  G_CALLBACK (on_key_press),
+					  NULL);
+	g_signal_connect (G_OBJECT (pWindow),
+					  "button-press-event",
+					  G_CALLBACK (on_button_press),
+					  NULL);
+
+	update_input_shape (pWindow, g_iCurrentWidth, g_iCurrentHeight);
+
+	gtk_main ();
+
+	return 0;
+}
Author	SHA1	Message	Date
Edouard Dupin	472b85b94b	Display corection of the enter and rm will now redisplay all the screen	2011-10-05 18:07:35 +02:00
Edouard Dupin	d21a3892df	add comment @ in asm code and do not request redraw in GTK3.0	2011-10-04 18:11:33 +02:00
Edouard Dupin	eff5e3ae25	Some amelioration of the redrawing	2011-10-04 13:19:29 +02:00
Edouard Dupin	85806b2638	force the redraw when get the focus ...	2011-10-04 13:03:40 +02:00
Edouard Dupin	4477ef0ab5	basic optimisation of line update ==> not tested	2011-10-03 22:31:54 +02:00
Edouard Dupin	7cf06ba256	sys: first correct version of the display line by line	2011-09-29 17:50:26 +02:00
Edouard Dupin	df4b14611e	redisplay lines where we are adding char	2011-09-28 17:42:07 +02:00
Edouard Dupin	127ad0aac5	Little clean	2011-09-28 09:16:33 +02:00
Edouard Dupin	1d0bcd7087	buffer list : normalize the display methode	2011-09-22 17:07:57 +02:00
Edouard Dupin	d3efb637ab	internal doubleBuffer with re-copy ==> OK	2011-09-22 15:01:49 +02:00
Edouard Dupin	3dad4f219b	first test of internal double buffer ==> display is bad...	2011-09-20 18:27:11 +02:00
Edouard Dupin	74cfca4516	Sys: request redraw of a specific area of a widget	2011-09-19 17:40:31 +02:00
Edouard Dupin	db85018627	SYS: page up and page down coorection	2011-09-19 10:06:18 +02:00
Edouard Dupin	9bad01fc37	sys : rework seem fonctionnal (slow) and a correction start selection error	2011-09-18 20:46:05 +02:00
Edouard Dupin	89394d5770	sys : back to normal compilation and working ok (slow but ok)	2011-09-18 16:43:57 +02:00
Edouard Dupin	03484cc85d	sys: rework internal compilation ok	2011-09-18 13:35:24 +02:00
Edouard Dupin	7fbfe1f86a	gui : change the display of internal Titile	2011-09-15 18:16:44 +02:00
Edouard Dupin	745ca76a74	SYS : next step of the new display methode ...	2011-09-12 16:43:13 +02:00
Edouard Dupin	2712d4f67d	SYS: Buffer anchor mechanism first step	2011-09-11 22:46:36 +02:00
Edouard Dupin	bdc4793955	SYS : remove blobal clean in the main displayer	2011-09-10 10:40:00 +02:00
Edouard Dupin	650206f04e	SYS : key error in gtk 3.0	2011-09-08 21:52:02 +02:00
Edouard Dupin	d21d661f15	SYS : color display is back ==> but so slow ...	2011-09-08 14:57:25 +02:00
Edouard Dupin	f5f97c53de	SYS : Selection is Back	2011-09-08 14:22:05 +02:00
Edouard Dupin	d78a67f99f	SYS : display with left and right movement is back	2011-09-08 14:09:20 +02:00
Edouard Dupin	0b2599fb81	SYS : First step for the display line by line	2011-09-07 18:17:05 +02:00