FinalizePayment.cpp

 bool FinalizePayment::finalize(int receiptId, FPPayments::Payed &p) {
    finalizePaymentForm->Init(getTotal(receiptId));
    if (finalizePaymentForm->ShowModal() == mrOk) {
        p = finalizePaymentForm->getPayment();
        FPPayments::PaymentInfo paymentInfo = p.getInfo();
        if (paymentInfo.size() > 1) {
            for (FPPayments::PaymentInfo::const_iterator i = paymentInfo.begin(); i != paymentInfo.end(); i++) {
                if (i->first == "cash")
                    generateCashPayment(receiptId, atof(i->second.c_str()));
                else
                    generateCardPayment(receiptId, p.getTerminal(), atof(i->second.c_str()));
            }
        } else {
            if (p.getTerminal() != 0)
                generateCardPayment(receiptId, p.getTerminal());
            else
                generateCashPayment(receiptId);
        }
        return true;
    }
    return false;
}

//------------------------------------------------------------------------

FinalizePaymentForm.cpp 


    #pragma link "dxfCheckBox"
    //---------------------------------------------------------------------------
    #include <vcl.h>
    #include "CommonHeader.h"
    #pragma hdrstop
    //---------------------------------------------------------------------------
    #pragma package(smart_init)
    #pragma resource "*.dfm"
    namespace Totalizer
    {
        TFinalizePaymentForm1 *FinalizePaymentForm1;
    //---------------------------------------------------------------------------
        __fastcall TFinalizePaymentForm1::TFinalizePaymentForm1(TComponent* Owner)
                : TForm(Owner)
        {
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::FormCreate(TObject *Sender)
        {
            for(int i = 0; i< PaymentPages->PageCount; i++)
                PaymentPages->Pages[i]->TabVisible = false;
            PaymentPages->ActivePageIndex = 0;
            for(int i = 0; i< MainPages->PageCount; i++)
                MainPages->Pages[i]->TabVisible = false;
            MainPages->ActivePageIndex = 0;
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::FormShow(TObject *Sender)
        {
            MainPages->ActivePageIndex = 0;
            PaymentPages->ActivePageIndex = 0;
            PaymentsRG->ItemIndex = 0;
            TotalLabel1->Caption = FormatFloat("0.00", total);
            TotalLabel2->Caption = FormatFloat("0.00", total);
            CashMemo->Lines->Text = FormatFloat("0.00", total);
            MCashMemo->Lines->Text = "0";
            MCardMemo->Lines->Text = "0";
            MTotalMemo->Lines->Text = FormatFloat("0.00", total);
    
            CashMemo->SelectAll();
            ChangeLabel->Caption = "0.00";
    
            POSTerminalQuery->Close();
            POSTerminalQuery->Open();
            PaymentsRGClick(Sender);
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::Init(AnsiString Total)
        {
            cash = total = Total.ToDouble();
            card = 0;
            MTotalMemo->Lines->Text = Total;
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::CashMemoKeyPress(TObject *Sender,
                                                                char &Key)
        {
            if(Key != '1' && Key != '2' && Key != '3' && Key != '4' && Key != '5' &&
               Key != '6' && Key != '7' && Key != '8' && Key != '9' && Key != '0' &&
               Key != '.' && Key != 'n' && Key != 'r' && Key != 't' &&
               Key != 'l' && Key != 27 && Key != 'b')
                Key = 0;
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::CashMemoChange(TObject *Sender)
        {
            if(CashMemo->Lines->Text == "")
            {
                ChangeLabel->Caption = "";
                return;
            }
            cash  = CashMemo->Lines->Text.ToDouble();
            ChangeLabel->Caption = FormatFloat("0.00", cash - total);
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::MCardMemoChange(TObject *Sender)
        {
            if(PaymentPages->ActivePageIndex != 2)
                return;
    
            if(MCashMemo->Lines->Text == "")
            {
                cash = 0;
            }
            else
            {
                cash = MCashMemo->Lines->Text.ToDouble();
            }
    
            if(MCardMemo->Lines->Text == "")
            {
                card = 0;
            }
            else
            {
                card = MCardMemo->Lines->Text.ToDouble();
            }
            float s = card + cash;
            if(s == total)      MTotalMemo->Font->Color = clGreen;
            else if(s > total)  MTotalMemo->Font->Color = clRed;
            else                MTotalMemo->Font->Color = clMaroon;
    
        }
    //---------------------------------------------------------------------------
        const bool TFinalizePaymentForm1::isThereChange() const
        {
            return cash > total;
        }
    //---------------------------------------------------------------------------
        const float TFinalizePaymentForm1::getCash() const
        {
            return (cash > total) ? cash : -1;
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::OKBtnClick(TObject *Sender)
        {
            if(PaymentsRG->ItemIndex && (!m_isTerminalChosen || POSTerminalQuery->Fields->Fields[0]->IsNull))
            {
                ShowMessage("Moля изберете пос терминал!");
                return;
            }
    
    
            if ((PaymentsRG->ItemIndex == 0) && (FormatFloat("0.000", cash) != FormatFloat("0.000", total)) )
            {
                if(cash < total)
                {
                    MessageBox(Handle, "Сумата трябва да е по-голяма или равна на стойността на протокола!", "Внимание", MB_OK);
                    return;
                }
            }
            else if ( (PaymentsRG->ItemIndex == 2) && ( FormatFloat("0.000",card + cash) != FormatFloat("0.000",total)) )
            {
                MessageBox(Handle, "Сборът от сумата в брой и сумата, платена с карта трябва да е равна на стойността на протокола!", "Внимание", MB_OK);
                return;
            }
    
            MsgLabel->Caption = "Вие приехте плащане от клиент за ";
            if (PaymentsRG->ItemIndex == 0)
            {
                MsgLabel->Caption = MsgLabel->Caption + TotalLabel1->Caption + " лв. в брой!";
            }
            else if (PaymentsRG->ItemIndex == 1)
            {
                MsgLabel->Caption = MsgLabel->Caption + TotalLabel2->Caption + " лв. с карта на " +
                                    POSTerminalQuery->FieldByName("POS_NAME")->AsString;
            }
            else
            {
                MsgLabel->Caption = MsgLabel->Caption + MTotalMemo->Lines->Text + " лв." +
                                    " от които:nв брой: " + MCashMemo->Lines->Text +
                                    " лв. и nс карта: " + MCardMemo->Lines->Text + " лв. на " +
                                    POSTerminalQuery->FieldByName("POS_NAME")->AsString;;
            }
    
            MainPages->ActivePage = TabMessage;
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::MOKBtnClick(TObject *Sender)
        {
            ModalResult = mrOk;
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::MCancelBtnClick(TObject *Sender)
        {
            MainPages->ActivePage = TabChoice;
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::PaymentsRGClick(TObject *Sender)
        {
            PaymentPages->ActivePageIndex = PaymentsRG->ItemIndex;
            if(PaymentsRG->ItemIndex == 0)
            {
                if(CashMemo->Text != "")
                {
                    cash = CashMemo->Text.ToDouble();
                }
                else
                {
                    cash = 0;
                    CashMemo->Text = "0";
                }
                CashMemo->SelectAll();
                CashMemo->SetFocus();
            }
            else if(PaymentsRG->ItemIndex == 1)
            {
                m_isTerminalChosen = false;
                m_terminalId = 0;
                cash = total;
                POSTerminalGrid->SetFocus();
            }
            else
            {
                m_isTerminalChosen = false;
                m_terminalId = 0;
                POSTerminalGridM->SetFocus();
                if(MCashMemo->Text != "")
                {
                    cash = MCashMemo->Text.ToDouble();
                }
                else
                {
                    cash = 0;
                    MCashMemo->Text = "0";
                }
                if(MCardMemo->Text != "")
                {
                    card = MCardMemo->Text.ToDouble();
                }
                else
                {
                    card = 0;
                    MCardMemo->Text = "0";
                }
            }
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::POSTerminalQueryAfterScroll(TDataSet *DataSet)
        {
            m_terminalId = POSTerminalQuery->FieldByName("REF_POS_ACCOUNT_ID")->AsInteger;
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::POSTerminalGridCellClick(TColumn *Column)
        {
            m_terminalId = POSTerminalQuery->FieldByName("REF_POS_ACCOUNT_ID")->AsInteger;
            m_isTerminalChosen = true;
        }
    //---------------------------------------------------------------------------
        void __fastcall TFinalizePaymentForm1::FormClose(TObject *Sender, TCloseAction &Action)
        {
            POSTerminalQuery->Close();
        }
    //---------------------------------------------------------------------------
        FPPayments::Payed TFinalizePaymentForm1::getPayment()
        {
            FPPayments::Payed payment;
            double sum = (cash > total) ? cash : -1;
            if(PaymentsRG->ItemIndex == 0)
            {
                payment.setCashPayment(sum);
            }
            else if(PaymentsRG->ItemIndex == 1)
            {
                payment.setCardPayment(sum, m_terminalId);
            }
            else if(PaymentsRG->ItemIndex == 2)
            {
                payment.setCashPayment(cash);
                payment.setCardPayment(card, m_terminalId);
            }
    
    
            return payment;
        }
    //---------------------------------------------------------------------------
    }
    

I am trying to get the correct value of the payment , there is payment types : By Cash , By Card , and mixed payment , so in mixed payment , it is getting the same amount for both , i don’t know where is my mistake , i need to get off from total amount – cash , and to pass the rest of the amount to the card , when is mixed !…..