Added TableToolTipProvider interface that can be set on a Table to easily

provide per cell tool tips.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33590 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/debuganalyzer/gui/table/Table.cpp

@@ -194,6 +194,13 @@ TableSelectionModel::_Update()
 }
 
 
+// #pragma mark - TableToolTipProvider
+
+
+TableToolTipProvider::~TableToolTipProvider()
+{
+}
+
 
 // #pragma mark - TableListener
 
@@ -342,6 +349,7 @@ Table::Table(const char* name, uint32 flags, border_style borderStyle,
 	:
 	AbstractTable(name, flags, borderStyle, showHorizontalScrollbar),
 	fModel(NULL),
+	fToolTipProvider(NULL),
 	fSelectionModel(this),
 	fIgnoreSelectionChange(0)
 {
@@ -353,6 +361,7 @@ Table::Table(TableModel* model, const char* name, uint32 flags,
 	:
 	AbstractTable(name, flags, borderStyle, showHorizontalScrollbar),
 	fModel(NULL),
+	fToolTipProvider(NULL),
 	fSelectionModel(this),
 	fIgnoreSelectionChange(0)
 {
@@ -399,6 +408,13 @@ Table::SetTableModel(TableModel* model)
 }
 
 
+void
+Table::SetToolTipProvider(TableToolTipProvider* toolTipProvider)
+{
+	fToolTipProvider = toolTipProvider;
+}
+
+
 TableSelectionModel*
 Table::SelectionModel()
 {
@@ -452,6 +468,27 @@ Table::RemoveTableListener(TableListener* listener)
 }
 
 
+bool
+Table::GetToolTipAt(BPoint point, BToolTip** _tip)
+{
+	if (fToolTipProvider == NULL)
+		return AbstractTable::GetToolTipAt(point, _tip);
+
+	// get the table row
+	BRow* row = RowAt(point);
+	int32 rowIndex = row != NULL ? _ModelIndexOfRow(row) : -1;
+	if (rowIndex < 0)
+		return AbstractTable::GetToolTipAt(point, _tip);
+
+	// get the table column
+	BColumn* column = ColumnAt(point);
+	int32 columnIndex = column != NULL ? column->LogicalFieldNum() : -1;
+
+	return fToolTipProvider->GetToolTipForTableCell(rowIndex, columnIndex,
+		_tip);
+}
+
+
 void
 Table::SelectionChanged()
 {

src/apps/debuganalyzer/gui/table/Table.h

@@ -79,6 +79,16 @@ private:
 };
 
 
+class TableToolTipProvider {
+public:
+	virtual						~TableToolTipProvider();
+
+	virtual	bool				GetToolTipForTableCell(int32 rowIndex,
+									int32 columnIndex, BToolTip** _tip) = 0;
+									// columnIndex can be -1, if not in a column
+};
+
+
 class TableListener {
 public:
 	virtual						~TableListener();
@@ -102,6 +112,11 @@ public:
 			void				SetTableModel(TableModel* model);
 			TableModel*			GetTableModel() const	{ return fModel; }
 
+			void				SetToolTipProvider(
+									TableToolTipProvider* toolTipProvider);
+			TableToolTipProvider* ToolTipProvider() const
+									{ return fToolTipProvider; }
+
 			TableSelectionModel* SelectionModel();
 
 			void				SelectRow(int32 rowIndex, bool extendSelection);
@@ -112,6 +127,8 @@ public:
 			void				RemoveTableListener(TableListener* listener);
 
 protected:
+	virtual bool				GetToolTipAt(BPoint point, BToolTip** _tip);
+
 	virtual	void				SelectionChanged();
 
 	virtual	AbstractColumn*		CreateColumn(TableColumn* column);
@@ -140,6 +157,7 @@ private:
 
 private:
 			TableModel*			fModel;
+			TableToolTipProvider* fToolTipProvider;
 			RowList				fRows;
 			TableSelectionModel	fSelectionModel;
 			ListenerList		fListeners;