Added basic listener support to Table.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30400 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/debuganalyzer/Table.cpp

@@ -137,6 +137,20 @@ TableColumn::GetPreferredWidth(BField* _field, BView* parent) const
 }
 
 
+// #pragma mark - TableListener
+
+
+TableListener::~TableListener()
+{
+}
+
+
+void
+TableListener::TableRowInvoked(Table* table, int32 rowIndex)
+{
+}
+
+
 // #pragma mark - Table
 
 
@@ -233,3 +247,34 @@ Table::AddColumn(TableColumn* column)
 
 	BColumnListView::AddColumn(column, column->ModelIndex());
 }
+
+
+bool
+Table::AddTableListener(TableListener* listener)
+{
+	return fListeners.AddItem(listener);
+}
+
+
+void
+Table::RemoveTableListener(TableListener* listener)
+{
+	fListeners.RemoveItem(listener);
+}
+
+
+void
+Table::ItemInvoked()
+{
+	if (fListeners.IsEmpty())
+		return;
+
+	BRow* row = CurrentSelection();
+	if (row == NULL)
+		return;
+
+	int32 index = IndexOf(row);
+	int32 listenerCount = fListeners.CountItems();
+	for (int32 i = listenerCount - 1; i >= 0; i--)
+		fListeners.ItemAt(i)->TableRowInvoked(this, index);
+}

src/apps/debuganalyzer/Table.h

@@ -66,6 +66,14 @@ private:
 };
 
 
+class TableListener {
+public:
+	virtual						~TableListener();
+
+	virtual	void				TableRowInvoked(Table* table, int32 rowIndex);
+};
+
+
 class Table : private BColumnListView {
 public:
 								Table(const char* name, uint32 flags,
@@ -84,12 +92,20 @@ public:
 
 			void				AddColumn(TableColumn* column);
 
+			bool				AddTableListener(TableListener* listener);
+			void				RemoveTableListener(TableListener* listener);
+
 private:
 			typedef BObjectList<TableColumn>	ColumnList;
+			typedef BObjectList<TableListener>	ListenerList;
+
+private:
+	virtual	void				ItemInvoked();
 
 private:
 			TableModel*			fModel;
 			ColumnList			fColumns;
+			ListenerList		fListeners;
 };