diff --git a/sources/appl/Gui/BufferView.cpp b/sources/appl/Gui/BufferView.cpp
index dffcd3e..0826c73 100644
--- a/sources/appl/Gui/BufferView.cpp
+++ b/sources/appl/Gui/BufferView.cpp
@@ -178,17 +178,13 @@ etk::Color<> BufferView::getBasicBG() {
 	return (*m_paintingProperties)[m_colorBackground1].getForeground();
 }
 
-uint32_t BufferView::getNuberOfColomn() {
-	return 1;
-}
-
 bool BufferView::getTitle(int32_t _colomn, etk::String &_myTitle, etk::Color<> &_fg, etk::Color<> &_bg) {
 	_myTitle = "Buffers : ";
 	return true;
 }
 
-uint32_t BufferView::getNuberOfRaw() {
-	return m_list.size();
+ivec2 BufferView::getMatrixSize() const {
+	return ivec2(1,m_list.size());
 }
 
 fluorine::Variant BufferView::getData(int32_t _role, const ivec2& _pos) {
@@ -220,7 +216,7 @@ bool BufferView::onItemEvent(int32_t _IdInput, enum gale::key::status _typeEvent
 		APPL_INFO("Event on List : IdInput=" << _IdInput << " pos=" << _pos );
 		if(    _pos.y() >= 0
 		    && _pos.y() < (int64_t)m_list.size()) {
-			if (m_list[_raw].m_buffer != null) {
+			if (m_list[_pos.y()].m_buffer != null) {
 				if (m_bufferManager != null) {
 					APPL_INFO("Select file :" << m_list[_pos.y()].m_buffer->getFileName() << " in list");
 					m_bufferManager->open(m_list[_pos.y()].m_buffer->getFileName());
diff --git a/sources/appl/Gui/BufferView.hpp b/sources/appl/Gui/BufferView.hpp
index fc269b2..3c66cc4 100644
--- a/sources/appl/Gui/BufferView.hpp
+++ b/sources/appl/Gui/BufferView.hpp
@@ -64,9 +64,8 @@ class BufferView : public ewol::widget::List {
 		etk::Color<> getBasicBG() override;
 		void removeAllElement();
 		// Derived function
-		uint32_t getNuberOfColomn() override;
 		bool getTitle(int32_t _colomn, etk::String& _myTitle, etk::Color<>& _fg, etk::Color<>& _bg) override;
-		uint32_t getNuberOfRaw() override;
+		ivec2 getMatrixSize() const override;
 		fluorine::Variant getData(int32_t _role, const ivec2& _pos) override;
 		bool onItemEvent(int32_t _IdInput, enum gale::key::status _typeEvent, const ivec2& _pos, const vec2& _mousePosition) override;
 	private: //callback function:
@@ -76,6 +75,6 @@ class BufferView : public ewol::widget::List {
 		void onCallbackNewBuffer(const etk::String& _value);
 		void onCallbackselectNewFile(const etk::String& _value);
 		void onCallbackBufferRemoved(const ememory::SharedPtr<appl::Buffer>& _buffer);
-		void calculateMinMaxSize();
+		void calculateMinMaxSize() override;
 };
 
diff --git a/sources/appl/Gui/TagFileList.cpp b/sources/appl/Gui/TagFileList.cpp
index 3171058..1c62294 100644
--- a/sources/appl/Gui/TagFileList.cpp
+++ b/sources/appl/Gui/TagFileList.cpp
@@ -37,17 +37,13 @@ etk::Color<> appl::TagFileList::getBasicBG() {
 	return 0x00000010;
 }
 
-uint32_t appl::TagFileList::getNuberOfColomn() {
-	return 2;
-}
-
 bool appl::TagFileList::getTitle(int32_t _colomn, etk::String& _myTitle, etk::Color<>& _fg, etk::Color<>& _bg) {
 	_myTitle = "title";
 	return true;
 }
 
-uint32_t appl::TagFileList::getNuberOfRaw() {
-	return m_list.size();
+ivec2 appl::TagFileList::getMatrixSize() const {
+	return ivec2(2,m_list.size());
 }
 
 fluorine::Variant appl::TagFileList::getData(int32_t _role, const ivec2& _pos) {
diff --git a/sources/appl/Gui/TagFileList.hpp b/sources/appl/Gui/TagFileList.hpp
index 92241a6..6db5c3c 100644
--- a/sources/appl/Gui/TagFileList.hpp
+++ b/sources/appl/Gui/TagFileList.hpp
@@ -44,9 +44,8 @@ namespace appl {
 			virtual ~TagFileList();
 			// display API :
 			etk::Color<> getBasicBG() override;
-			uint32_t getNuberOfColomn() override;
 			bool getTitle(int32_t _colomn, etk::String& _myTitle, etk::Color<>& _fg, etk::Color<>& _bg) override;
-			uint32_t getNuberOfRaw() override;
+			ivec2 getMatrixSize() const override;
 			fluorine::Variant getData(int32_t _role, const ivec2& _pos) override;
 			bool onItemEvent(int32_t _IdInput, enum gale::key::status _typeEvent, const ivec2& _pos, const vec2& _mousePosition) override;
 		public: