/// <summary>
/// Executes the delegate passed and ensures that the fiscal printer is connected.
/// Also handles any possible problems and errors that the printer might be causing.
/// </summary>
/// <param name="cmd">The delegate to be executed</param>
/// <param name="connectFiscalDevice"></param>
/// <param name="buttonsMask">Mask that potentially can hide buttons that we don't want to be shown in case of an error</param>
/// <returns>True if the delegate execution succeeds</returns>
public static bool TryReceiptPrinterCommand(DeviceCommand cmd, bool connectFiscalDevice = true, MessageButtons buttonsMask = MessageButtons.All)
{
HardwareErrorResponse lastResponse = new HardwareErrorResponse();
do
{
lastResponse.Retry = false;
try {
if (connectFiscalDevice)
{
if (!BusinessDomain.DeviceManager.CashReceiptPrinterConnected)
{
BusinessDomain.DeviceManager.ConnectCashReceiptPrinter();
}
}
else
{
if (!BusinessDomain.DeviceManager.CustomerOrderPrinterConnected)
{
BusinessDomain.DeviceManager.ConnectCustomerOrderPrinter();
}
}
cmd(lastResponse);
} catch (HardwareErrorException ex) {
lastResponse = HandleHardwareError(ex, buttonsMask);
if (!lastResponse.Retry)
{
BusinessDomain.DeviceManager.DeviceWorkerResume();
return(false);
}
}
} while (lastResponse.Retry);
return(true);
}
public static HardwareErrorResponse ShowHardwareErrorMessage(HardwareErrorException ex, MessageButtons buttonsMask)
{
HardwareErrorResponse ret = new HardwareErrorResponse {
CancelLastReceipt = true
};
string message = string.Empty;
MessageButtons buttons = MessageButtons.Retry | MessageButtons.Cancel;
ErrorState error = ex.Error;
if (error.Check(ErrorState.CashReceiptPrinterDisconnected))
{
message = Translator.GetString("Unable to connect to the cash receipt printer!");
}
else if (error.Check(ErrorState.NonFiscalPrinterDisconnected))
{
message = Translator.GetString("Unable to connect to the receipt printer!");
}
else if (error.Check(ErrorState.ExternalDisplayDisconnected))
{
message = Translator.GetString("Unable to connect to the external display!");
}
else if (error.Check(ErrorState.CardReaderDisconnected))
{
message = Translator.GetString("Unable to connect to the card reader!");
}
else if (error.Check(ErrorState.KitchenPrinterError))
{
if ((buttonsMask & MessageButtons.OK) == MessageButtons.OK)
{
message = Translator.GetString("Unable to print on the kitchen printer! Press \"Retry\" to try again or \"OK\" to print the receipt on the printer for customer orders.");
buttons |= MessageButtons.OK;
}
else
{
message = Translator.GetString("Unable to print on the kitchen printer! Press \"Retry\" to try again.");
}
}
else if (error.Check(ErrorState.KitchenPrinterDisconnected))
{
message = Translator.GetString("Unable to connect to the kitchen printer!");
}
else if (error.Check(ErrorState.ElectronicScaleDisconnected))
{
message = Translator.GetString("Unable to connect to the electronic scale!");
}
else if (error.Check(ErrorState.ElectronicScaleNotEnabled))
{
message = Translator.GetString("There is no electronic scale installed or the electronic scale is not enabled!");
buttons = MessageButtons.Cancel;
}
else if (error.Check(ErrorState.SalesDataControllerDisconnected))
{
message = Translator.GetString("Unable to connect to the sales data controller!");
}
else if (error.Check(ErrorState.ClockNotSet))
{
message = Translator.GetString("The clock of the fiscal printer is not set. Please set it to the correct time!");
}
else if (error.Check(ErrorState.KitchenPrinterNoPaper))
{
message = Translator.GetString("The kitchen printer is out of paper!");
buttons |= MessageButtons.OK;
}
else if (error.CheckError(ErrorState.NoPaper))
{
message = Translator.GetString("The fiscal printer is out of paper. Please replace!");
ret.RetryWithoutPrint = true;
}
else if (error.Check(ErrorState.FiscalPrinterNotReady))
{
message = Translator.GetString("The fiscal printer is not ready to print. Please make sure that the fiscal printer is in the correct mode!");
}
else if (error.Check(ErrorState.WaitingPaperReplaceConfirmation))
{
message = Translator.GetString("The fiscal printer waits for key combination to accept the replaced paper roll!");
ret.RetryWithoutPrint = true;
}
else if (error.CheckError(ErrorState.LittlePaper))
{
message = Translator.GetString("There is a little paper in the printer. Please replace!");
ret.RetryWithoutPrint = true;
}
else if (error.Check(ErrorState.Report24HRequired))
{
message = Translator.GetString("24 Hour report is required before you can continue working with the fiscal printer!");
}
else if (error.Check(ErrorState.BadSerialPort))
{
message = Translator.GetString("There was a problem connecting with the serial port. Please check the serial port!");
}
else if (error.Check(ErrorState.BadConnectionParameters))
{
message = Translator.GetString("There was a problem connecting with the device. Please check the connection parameters!");
}
else if (error.Check(ErrorState.BadPassword))
{
message = Translator.GetString("The password for the device is not correct!");
}
else if (error.Check(ErrorState.BadLogicalAddress))
{
message = Translator.GetString("The logical address for the device is not correct!");
}
else if (error.Check(ErrorState.NotEnoughCashInTheRegister))
{
message = Translator.GetString("There is not enough cash in the register to return change for the payment!");
ret.AskForPayment = true;
}
else if (error.Check(ErrorState.FiscalPrinterOverflow))
{
message = Translator.GetString("An overflow occurred while transferring data to the fiscal printer!");
}
else if (error.Check(ErrorState.TooManyTransactionsInReceipt))
{
message = Translator.GetString("There are too many transactions in the operation for the fiscal printer to handle!");
buttons = MessageButtons.Cancel;
}
else if (error.Check(ErrorState.VATGroupsMismatch))
{
message = Translator.GetString("The VAT groups defined does not match the VAT groups of the fiscal printer!");
buttons = MessageButtons.Cancel;
}
else if (error.Check(ErrorState.EvalItemsLimitation))
{
message = string.Format(Translator.GetString("This is not a licensed version of {0}! Only less than 5 lines are allowed in a sale."), DataHelper.ProductName);
buttons = MessageButtons.Cancel;
}
else if (error.Check(ErrorState.EvalPriceLimitation))
{
message = string.Format(Translator.GetString("This is not a licensed version of {0}! Only prices less than 10 are allowed in a sale."), DataHelper.ProductName);
buttons = MessageButtons.Cancel;
}
else if (error.Check(ErrorState.EvalQttyLimitation))
{
message = string.Format(Translator.GetString("This is not a licensed version of {0}! Only quantities less than 3 are allowed in a sale."), DataHelper.ProductName);
buttons = MessageButtons.Cancel;
}
else if (error.Check(ErrorState.EvalLimitation))
{
message = string.Format(Translator.GetString("This is not a licensed version of {0}! Please purchase a license to use this device."), DataHelper.ProductName);
buttons = MessageButtons.Cancel;
}
else if (error.Check(ErrorState.DriverNotFound))
{
message = Translator.GetString("The device driver was not found. Please verify that it is properly installed and try again.");
buttons = MessageButtons.Cancel;
}
else if (error.Count > 0)
{
message = Translator.GetString("An error in a peripheral device has occurred!");
message += "\n" + error;
}
using (MessageError msgDialog = new MessageError(message, ErrorSeverity.Error, ex)) {
msgDialog.Buttons = buttons & buttonsMask;
PresentationDomain.OnShowingDialog();
ret.Retry = false;
ret.Button = MessageButtons.None;
switch (msgDialog.Run())
{
case ResponseType.Reject:
ret.Button |= MessageButtons.Retry;
ret.Retry = true;
break;
case ResponseType.Ok:
ret.Button |= MessageButtons.OK;
break;
case ResponseType.Cancel:
ret.Button |= MessageButtons.Cancel;
break;
case ResponseType.Yes:
ret.Button |= MessageButtons.Yes;
break;
case ResponseType.No:
ret.Button |= MessageButtons.No;
break;
}
}
return(ret);
}
