C++ (Cpp) ModelNode::SetTableCellRenderer Examples

Example #1

void
VariablesView::VariableTableModel::ValueNodeValueChanged(ValueNode* valueNode)
{
	if (fContainer == NULL)
		return;

	AutoLocker<ValueNodeContainer> containerLocker(fContainer);

	// check whether we know the node
	ValueNodeChild* nodeChild = valueNode->NodeChild();
	if (nodeChild == NULL)
		return;

	ModelNode* modelNode = fNodeTable.Lookup(nodeChild);
	if (modelNode == NULL)
		return;

	// check whether the value actually changed
	Value* value = valueNode->GetValue();
	if (value == modelNode->GetValue())
		return;

	// get a value handler
	ValueHandler* valueHandler;
	status_t error = ValueHandlerRoster::Default()->FindValueHandler(value,
		valueHandler);
	if (error != B_OK)
		return;
	BReference<ValueHandler> handlerReference(valueHandler, true);

	// create a table cell renderer for the value
	TableCellValueRenderer* renderer = NULL;
	error = valueHandler->GetTableCellValueRenderer(value, renderer);
	if (error != B_OK)
		return;

	// set value/handler/renderer
	modelNode->SetValue(value);
	modelNode->SetValueHandler(valueHandler);
	modelNode->SetTableCellRenderer(renderer);

	// notify table model listeners
	NotifyNodeChanged(modelNode);
}