Esempi in C++ (Cpp) per ModelNode::GetValueHandler

Esempio n. 1

void
VariablesView::TreeTableCellMouseDown(TreeTable* table,
	const TreeTablePath& path, int32 columnIndex, BPoint screenWhere,
	uint32 buttons)
{
	if ((buttons & B_SECONDARY_MOUSE_BUTTON) == 0)
		return;

	_FinishContextMenu(true);

	ModelNode* node = (ModelNode*)fVariableTableModel->NodeForPath(path);
	if (node == NULL)
		return;

	TableCellValueRenderer* cellRenderer = node->TableCellRenderer();
	if (cellRenderer == NULL)
		return;

	Settings* settings = cellRenderer->GetSettings();
	if (settings == NULL)
		return;

	SettingsMenu* settingsMenu;
	status_t error = node->GetValueHandler()->CreateTableCellValueSettingsMenu(
		node->GetValue(), settings, settingsMenu);
	BReference<SettingsMenu> settingsMenuReference(settingsMenu, true);
	if (error != B_OK)
		return;

	TableCellContextMenuTracker* tracker = new(std::nothrow)
		TableCellContextMenuTracker(node, Looper(), this);
	BReference<TableCellContextMenuTracker> trackerReference(tracker);
	if (tracker == NULL || tracker->Init(settings, settingsMenu) != B_OK)
		return;

	fTableCellContextMenuTracker = trackerReference.Detach();
	fTableCellContextMenuTracker->ShowMenu(screenWhere);
}