ShowItem

CFormItem* CForm::ShowItem(const char* name, bool updateDisplay = true)

Parameters

• name = The button title or input prompt text
• updateDisplay = (optional parameter, true if not included) true to update the display, false do not update the display

Return Value

The ShowItem function returns a pointer to the CFormItem found based on the provided name value; NULL is returned if no item is found with a matching name value.

Remarks

ShowItem is a wrapper for EnableItem to simplify code. It is equivalent to EnableItem(name, true, updateDisplay)

Example

void UpdateLocalRemoteForm(CForm *pForm)
{
	int mode = 0;
	int type = 0;

	CFormInput *pMode = (CFormInput*)pForm->FindName(LANG(STR_LOCREM_MODE_PROMPT));
	if(pMode != NULL)
	{
		mode = pMode->GetSelItem();
	}
	CFormInput *pType = (CFormInput*)pForm->FindName(LANG(STR_LOCREM_COMMTYPE_PROMPT));
	if(pType != NULL)
	{
		type = pType->GetSelItem();
	}

	// Must do hide items first to allow for conditional items to be at the same place
	// in the form otherwise we might show a condition item and then blank it out

	if(mode == MODE_OFF)
	{
		pForm->HideItem(LANG(STR_LOCREM_COMMTYPE_PROMPT));
		pForm->HideItem(LANG(STR_LOCREM_PORT_PROMPT));
		pForm->HideItem(LANG(STR_LOCREM_IPADDR_PROMPT));
		pForm->HideItem(LANG(STR_LOCREM_COMMPORT_PROMPT));
	}
	else
	{
		if(type == SERIAL)
		{
			pForm->HideItem(LANG(STR_LOCREM_IPADDR_PROMPT));
			pForm->HideItem(LANG(STR_LOCREM_PORT_PROMPT));

			pForm->ShowItem(LANG(STR_LOCREM_COMMPORT_PROMPT));
		}
		else
		{
			pForm->HideItem(LANG(STR_LOCREM_COMMPORT_PROMPT));

			if(mode == MODE_REMOTE || mode == MODE_REMOTE_SMA)
			{
				pForm->ShowItem(LANG(STR_LOCREM_IPADDR_PROMPT));
			}
			else
			{
				pForm->HideItem(LANG(STR_LOCREM_IPADDR_PROMPT));
			}
			pForm->ShowItem(LANG(STR_LOCREM_PORT_PROMPT));
		}
		pForm->ShowItem(LANG(STR_LOCREM_COMMTYPE_PROMPT));
	}
}

int CLocalRemote::Config(void)
{

	Shutdown();

	uint8 byMode = (uint8) GetMode();
	commType = (uint8) GetCommType();
	commPort = (uint8) GetCommPort();
	FORM_INIT(CfgLR, EventLocalRemoteShow, NULL, NULL, NULL, nFormFlgShowHelp);

	FORM_ADD_INPUT(CfgLR, Mode, FONT_WIDTH * 0, FONT_HEIGHT * 2, LANG(STR_LOCREM_MODE_PROMPT),     10, 0,     2, EventModeOrTypeChg, &byMode,    FORM_UINT8_SEL,                      LANG(STR_LOCREM_MODE_CHOICES),    LANG(STR_LOCREM_MODE_HELP));
	FORM_ADD_INPUT(CfgLR, Type, FONT_WIDTH * 0, FONT_HEIGHT * 4, LANG(STR_LOCREM_COMMTYPE_PROMPT), 10, 0,     1, EventModeOrTypeChg, &commType,  FORM_UINT8_SEL | FORM_FLAG_DISABLE,  LANG(STR_LOCREM_TYPE_CHOICES),    LANG(STR_LOCREM_COMMTYPE_HELP));
	FORM_ADD_INPUT(CfgLR, ComP, FONT_WIDTH * 0, FONT_HEIGHT * 6, LANG(STR_LOCREM_COMMPORT_PROMPT), 10, 0,     1, NULL,               &commPort,  FORM_UINT8_SEL | FORM_FLAG_DISABLE,  LANG(STR_LOCREM_COMPORT_CHOICES), LANG(STR_LOCREM_COMPORT_HELP) );
	FORM_ADD_INPUT(CfgLR, Port, FONT_WIDTH * 0, FONT_HEIGHT * 6, LANG(STR_LOCREM_PORT_PROMPT),      6, 0, 65535, NULL,               &GetPort(), FORM_UINT32 | FORM_FLAG_DISABLE,     NULL,                             LANG(STR_LOCREM_PORT_HELP));
	FORM_ADD_INPUT(CfgLR, IP,   FONT_WIDTH * 0, FONT_HEIGHT * 8, LANG(STR_LOCREM_IPADDR_PROMPT) ,  18, 0,     0, NULL,               GetIP(),    FORM_STR | FORM_FLAG_DISABLE,        NULL,                             LANG(STR_LOCREM_IP_HELP));

	FORM_SHOW(CfgLR);

	UpdateLocalRemoteForm(&formCfgLR);

	int result = FORM_RUN(CfgLR);
	FORM_HIDE(CfgLR);

	if (result != FORM_RESULT_ESC)
	{
		SetMode((LocalRemoteMode) byMode);
		SetComType((LocalRemoteComm) commType);
		SetComPort((LocalRemotePort) commPort);

		appCfg.Write();
	}

	Startup();

	return result;
}

EVENT(ModeOrTypeChg)
{
	UpdateLocalRemoteForm(pForm);
	return 0;
}

EVENT(LocalRemoteShow)
{
	ClearLCD();
	SetCurColor(COLOR_ATTENTION);
	DisplayText(0, 0, LANG(STR_LOCREM_TITLE));

	return 0;
}

See Also

• HideItem
• EnableItem