jpanelticket.java

是一个专门设计用于触摸屏的POS(point of sales)应用软件

        } catch (NumberFormatException e){
            return 0.0;
        }
    }

    private double getPorValue() {
        try {
            return Double.parseDouble(m_jPor.getText().substring(1));                
        } catch (NumberFormatException e){
            return 1.0;
        } catch (StringIndexOutOfBoundsException e){
            return 1.0;
        }
    }
    
    private void stateToZero(){
        m_jPor.setText("");
        m_jPrice.setText("");
        m_sBarcode = new StringBuffer();

        m_iNumberStatus = NUMBER_INPUTZERO;
        m_iNumberStatusInput = NUMBERZERO;
        m_iNumberStatusPor = NUMBERZERO;
    }
    
    private void incProductByCode(String sCode) {
    // precondicion: sCode != null
        
        try {
            ProductInfoExt oProduct = m_App.lookupDataLogic(SentenceContainer.class).getProductInfo(sCode);
            if (oProduct == null) {                  
                Toolkit.getDefaultToolkit().beep();                   
                stateToZero();
            } else {
                // Se anade directamente una unidad con el precio y todo
                incProduct(oProduct);
            }
        } catch (BasicException eData) {
            stateToZero();           
            MessageInf msg = new MessageInf(eData);
            msg.show(this);            
        }
    }
    
    private void incProductByCode(String sCode, double dWeight) {
    // precondicion: sCode != null
        
        try {
            ProductInfoExt oProduct = m_App.lookupDataLogic(SentenceContainer.class).getProductInfo(sCode);
            if (oProduct == null) {                  
                Toolkit.getDefaultToolkit().beep();                   
                stateToZero();
            } else {
                // Se anade directamente una unidad con el precio y todo
                incProduct(dWeight, oProduct);
            }
        } catch (BasicException eData) {
            stateToZero();           
            MessageInf msg = new MessageInf(eData);
            msg.show(this);            
        }
    }
    
    private void incProductByCodePrice(String sCode, double dPriceSell) {
    // precondicion: sCode != null
        
        try {
            ProductInfoExt oProduct = m_App.lookupDataLogic(SentenceContainer.class).getProductInfo(sCode);
            if (oProduct == null) {                  
                Toolkit.getDefaultToolkit().beep();                   
                stateToZero();
            } else {
                // Se anade directamente una unidad con el precio y todo
                if (m_jaddtax.isSelected()) {
                    // debemos quitarle los impuestos ya que el precio es con iva incluido...
                    addTicketLine(oProduct, 1.0, dPriceSell / (1.0 + oProduct.getTaxRate()));
                } else {
                    addTicketLine(oProduct, 1.0, dPriceSell);
                }                
            }
        } catch (BasicException eData) {
            stateToZero();
            MessageInf msg = new MessageInf(eData);
            msg.show(this);    
        }
    }
    
    private void incProduct(ProductInfoExt prod) {
        
        if (prod.isScale() && m_App.getDeviceScale().existsScale()) {
            try {
                double dweight = m_App.getDeviceScale().readWeight();
                if (dweight > 0.001) {
                    // peso valido
                    incProduct(dweight, prod);
                } else {
                    // Peso 0.000
                    Toolkit.getDefaultToolkit().beep();
                }
            } catch (ScaleException e) {
                // Error de pesada.
                Toolkit.getDefaultToolkit().beep();
            }
        } else {
            // No es un producto que se pese o no hay balanza
            incProduct(1.0, prod);
        }
    }
    
    private void incProduct(double dPor, ProductInfoExt prod) {
        // precondicion: prod != null
        addTicketLine(prod, dPor, prod.getPriceSell());       
    }
       
    protected void buttonTransition(ProductInfoExt prod) {
    // precondicion: prod != null
        
         if (m_iNumberStatusInput == NUMBERZERO && m_iNumberStatusPor == NUMBERZERO) {
            incProduct(prod);
        } else if (m_iNumberStatusInput == NUMBERVALID && m_iNumberStatusPor == NUMBERZERO) {
            incProduct(getInputValue(), prod);
        } else {
            Toolkit.getDefaultToolkit().beep();
        }       
    }
    
    private void stateTransition(char cTrans) {

        if (cTrans == '\n') {
            // Codigo de barras introducido
            if (m_sBarcode.length() > 0) {            
                String sCode = m_sBarcode.toString();
                if (sCode.length() == 13 && sCode.startsWith("250")) {
                    // es un ticket de la maquina
                    ProductInfoExt oProduct = new ProductInfoExt(); // Es un ticket
                    oProduct.setReference(null); // para que no se grabe
                    oProduct.setCode(sCode);
                    oProduct.setName("Ticket " + sCode.substring(3, 7));
                    oProduct.setPriceSell(Double.parseDouble(sCode.substring(7, 12)) / 100);   
                    // Se anade directamente una unidad con el precio y todo
                    addTicketLine(oProduct, 1.0, oProduct.getPriceSell());
                } else if (sCode.length() == 13 && sCode.startsWith("210")) {
                    // es un ticket al peso
                    // incProductByCode(sCode.substring(0, 7), Double.parseDouble(sCode.substring(7, 12)) / 100);
                    incProductByCodePrice(sCode.substring(0, 7), Double.parseDouble(sCode.substring(7, 12)) / 100);
                } else {
                    incProductByCode(sCode);
                }
            } else {
                Toolkit.getDefaultToolkit().beep();
            }
        } else {
            // otro caracter
            // Esto es para el codigo de barras...
            m_sBarcode.append(cTrans);

            // Esto es para el los productos normales...
            if (cTrans == '\u007f') { 
                stateToZero();

            } else if ((cTrans == '0') 
                    && (m_iNumberStatus == NUMBER_INPUTZERO)) {
                m_jPrice.setText("0");            
            } else if ((cTrans == '1' || cTrans == '2' || cTrans == '3' || cTrans == '4' || cTrans == '5' || cTrans == '6' || cTrans == '7' || cTrans == '8' || cTrans == '9')
                    && (m_iNumberStatus == NUMBER_INPUTZERO)) { 
                // Un numero entero
                m_jPrice.setText(Character.toString(cTrans));
                m_iNumberStatus = NUMBER_INPUTINT;    
                m_iNumberStatusInput = NUMBERVALID;
            } else if ((cTrans == '0' || cTrans == '1' || cTrans == '2' || cTrans == '3' || cTrans == '4' || cTrans == '5' || cTrans == '6' || cTrans == '7' || cTrans == '8' || cTrans == '9')
                       && (m_iNumberStatus == NUMBER_INPUTINT)) { 
                // Un numero entero
                m_jPrice.setText(m_jPrice.getText() + cTrans);

            } else if (cTrans == '.' && m_iNumberStatus == NUMBER_INPUTZERO) {
                m_jPrice.setText("0.");
                m_iNumberStatus = NUMBER_INPUTZERODEC;            
            } else if (cTrans == '.' && m_iNumberStatus == NUMBER_INPUTINT) {
                m_jPrice.setText(m_jPrice.getText() + ".");
                m_iNumberStatus = NUMBER_INPUTDEC;

            } else if ((cTrans == '0')
                       && (m_iNumberStatus == NUMBER_INPUTZERODEC || m_iNumberStatus == NUMBER_INPUTDEC)) { 
                // Un numero decimal
                m_jPrice.setText(m_jPrice.getText() + cTrans);
            } else if ((cTrans == '1' || cTrans == '2' || cTrans == '3' || cTrans == '4' || cTrans == '5' || cTrans == '6' || cTrans == '7' || cTrans == '8' || cTrans == '9')
                       && (m_iNumberStatus == NUMBER_INPUTZERODEC || m_iNumberStatus == NUMBER_INPUTDEC)) { 
                // Un numero decimal
                m_jPrice.setText(m_jPrice.getText() + cTrans);
                m_iNumberStatus = NUMBER_INPUTDEC;
                m_iNumberStatusInput = NUMBERVALID;

            } else if (cTrans == '*' 
                    && (m_iNumberStatus == NUMBER_INPUTINT || m_iNumberStatus == NUMBER_INPUTDEC)) {
                m_jPor.setText("x");
                m_iNumberStatus = NUMBER_PORZERO;            
            } else if (cTrans == '*' 
                    && (m_iNumberStatus == NUMBER_INPUTZERO || m_iNumberStatus == NUMBER_INPUTZERODEC)) {
                m_jPrice.setText("0");
                m_jPor.setText("x");
                m_iNumberStatus = NUMBER_PORZERO;       

            } else if ((cTrans == '0') 
                    && (m_iNumberStatus == NUMBER_PORZERO)) {
                m_jPor.setText("x0");            
            } else if ((cTrans == '1' || cTrans == '2' || cTrans == '3' || cTrans == '4' || cTrans == '5' || cTrans == '6' || cTrans == '7' || cTrans == '8' || cTrans == '9')
                    && (m_iNumberStatus == NUMBER_PORZERO)) { 
                // Un numero entero
                m_jPor.setText("x" + Character.toString(cTrans));
                m_iNumberStatus = NUMBER_PORINT;            
                m_iNumberStatusPor = NUMBERVALID;
            } else if ((cTrans == '0' || cTrans == '1' || cTrans == '2' || cTrans == '3' || cTrans == '4' || cTrans == '5' || cTrans == '6' || cTrans == '7' || cTrans == '8' || cTrans == '9')
                       && (m_iNumberStatus == NUMBER_PORINT)) { 
                // Un numero entero
                m_jPor.setText(m_jPor.getText() + cTrans);

            } else if (cTrans == '.' && m_iNumberStatus == NUMBER_PORZERO) {
                m_jPor.setText("x0.");
                m_iNumberStatus = NUMBER_PORZERODEC;            
            } else if (cTrans == '.' && m_iNumberStatus == NUMBER_PORINT) {
                m_jPor.setText(m_jPor.getText() + ".");
                m_iNumberStatus = NUMBER_PORDEC;

            } else if ((cTrans == '0')
                       && (m_iNumberStatus == NUMBER_PORZERODEC || m_iNumberStatus == NUMBER_PORDEC)) { 
                // Un numero decimal
                m_jPor.setText(m_jPor.getText() + cTrans);
            } else if ((cTrans == '1' || cTrans == '2' || cTrans == '3' || cTrans == '4' || cTrans == '5' || cTrans == '6' || cTrans == '7' || cTrans == '8' || cTrans == '9')
                       && (m_iNumberStatus == NUMBER_PORZERODEC || m_iNumberStatus == NUMBER_PORDEC)) { 
                // Un numero decimal
                m_jPor.setText(m_jPor.getText() + cTrans);
                m_iNumberStatus = NUMBER_PORDEC;            
                m_iNumberStatusPor = NUMBERVALID;  
            
            } else if (cTrans == '\u00a7' 
                    && m_iNumberStatusInput == NUMBERVALID && m_iNumberStatusPor == NUMBERZERO) {
                // Bascula con una cantidad tecleada                
                if (m_App.getDeviceScale().existsScale()) {
                    try {
                        double dweight = m_App.getDeviceScale().readWeight();
                        if (dweight > 0.002) {
                            // peso valido
                            addTicketLine(getInputProduct(), dweight, includeTaxes(getInputValue()));
                        } else {
                            // Peso 0.000
                            Toolkit.getDefaultToolkit().beep();
                        }
                    } catch (ScaleException e) {
                        // Error de pesada.
                        Toolkit.getDefaultToolkit().beep();
                    }
                } else {
                    // No existe la balanza;
                    Toolkit.getDefaultToolkit().beep();
                }
            } else if (cTrans == '\u00a7' 
                    && m_iNumberStatusInput == NUMBERZERO && m_iNumberStatusPor == NUMBERZERO) {
                // Bascula a 0, ponemos el peso de la bascula a las cantidades.
                int i = m_ticketlines.getSelectedIndex();
                if (i < 0){
                    Toolkit.getDefaultToolkit().beep();
                } else if (m_App.getDeviceScale().existsScale()) {
                    try {
                        double dweight = m_App.getDeviceScale().readWeight();
                        if (dweight > 0.002) {
                            // peso valido
                            TicketLineInfo oLine = m_oTicket.getLine(i);
                            oLine.setMultiply(dweight);
                            oLine.setPrice(Math.abs(oLine.getPrice()));
                            paintTicketLine(i, oLine);
                        } else {
                            // Peso 0.000
                            Toolkit.getDefaultToolkit().beep();
                        }
                    } catch (ScaleException e) {
                        // Error de pesada.
                        Toolkit.getDefaultToolkit().beep();
                    }
                } else {
                    // No existe la balanza;
                    Toolkit.getDefaultToolkit().beep();
                }      
                
            // Anadimos un producto mas a la linea seleccionada
            } else if (cTrans == '+' 
                    && m_iNumberStatusInput == NUMBERZERO && m_iNumberStatusPor == NUMBERZERO) {
                int i = m_ticketlines.getSelectedIndex();
                if (i < 0){
                    Toolkit.getDefaultToolkit().beep();
                } else {
                    // Sumamos uno a la seleccionada...
                    TicketLineInfo oLine = m_oTicket.getLine(i);
                    oLine.addOneMore();
                    paintTicketLine(i, oLine); 
                }

            // Eliminamos un producto mas a la linea seleccionada
            } else if (cTrans == '-' 
                    && m_iNumberStatusInput == NUMBERZERO && m_iNumberStatusPor == NUMBERZERO) {
                int i = m_ticketlines.getSelectedIndex();
                if (i < 0){
                    Toolkit.getDefaultToolkit().beep();
                } else {
                    // Restamos uno a la seleccionada...
                    TicketLineInfo oLine = m_oTicket.getLine(i);
                    oLine.remOneMore();
                    if (oLine.getMultiply() <= 0.0) {                   
                        removeTicketLine(i); // elimino la linea
                    } else {
                        paintTicketLine(i, oLine);                   
                    }
                }

            // Ponemos n productos a la linea seleccionada
            } else if (cTrans == '+' 
                    && m_iNumberStatusInput == NUMBERZERO && m_iNumberStatusPor == NUMBERVALID) {
                int i = m_ticketlines.getSelectedIndex();
                if (i < 0){
                    Toolkit.getDefaultToolkit().beep();
                } else {
                    double dPor = getPorValue();
                    TicketLineInfo oLine = m_oTicket.getLine(i);
                    oLine.setMultiply(dPor);