Method ControlAddItems

source/script_gui.cpp:6837–6928

void GuiType::ControlAddItems(GuiControlType &aControl, Array *aObj)
{
	if (!aObj)
		return;

	UINT msg_add;
	int requested_index = 0;

	switch (aControl.type)
	{
	case GUI_CONTROL_TAB: // These cases must be listed anyway to do a break vs. return, so might as well init conditionally rather than unconditionally.
		requested_index = TabCtrl_GetItemCount(aControl.hwnd); // So that tabs are "appended at the end of the control's list", as documented for GuiControl.
		// Fall through:
	case GUI_CONTROL_LISTVIEW:
		msg_add = 0;
		break;
	case GUI_CONTROL_DROPDOWNLIST:
	case GUI_CONTROL_COMBOBOX:
		msg_add = CB_ADDSTRING;
		break;
	case GUI_CONTROL_LISTBOX:
		msg_add = LB_ADDSTRING;
		break;
	default: // Do nothing for any other control type that somehow makes its way here.
		return;
	}

	LRESULT item_index;
	TCHAR num_buf[MAX_NUMBER_SIZE];
	Array::index_t obj_index;
	ExprTokenType tok;

	// For tab controls:
	TCITEM tci;
	tci.mask = TCIF_TEXT | TCIF_IMAGE; // Simpler just to init unconditionally rather than checking control type.
	tci.iImage = -1;

	// For ListView:
	LVCOLUMN lvc;
	lvc.mask = LVCF_TEXT; // Simpler just to init unconditionally rather than checking control type.

	// Check *this_field at the top too, in case list ends in delimiter.
	for (obj_index = 0; aObj->ItemToToken(obj_index, tok); ++obj_index)
	{
		LPTSTR this_field = TokenToString(tok, num_buf);

		// Add the item:
		switch (aControl.type)
		{
		case GUI_CONTROL_TAB:
			if (requested_index > MAX_TABS_PER_CONTROL - 1) // Unlikely, but indicate failure if so.
				item_index = -1;
			else
			{
				tci.pszText = this_field;
				item_index = TabCtrl_InsertItem(aControl.hwnd, requested_index, &tci);
				if (item_index != -1) // item_index is used later below as an indicator of success.
					++requested_index;