jnumberkeys.java

是一个专门设计用于触摸屏的POS(point of sales)应用软件

//    Tina POS is a point of sales application designed for touch screens.
//    Copyright (C) 2005 Adrian Romero Corchado.
//    http://sourceforge.net/projects/tinapos
//
//    This program is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    This program is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with this program; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

package net.adrianromero.beans;

import java.util.*;

public class JNumberKeys extends javax.swing.JPanel {

    private Vector m_Listeners = new Vector();
    
    /** Creates new form JNumberKeys */
    public JNumberKeys() {
        initComponents ();
        
        m_jKey0.addActionListener(new MyKeyNumberListener('0'));
        m_jKey1.addActionListener(new MyKeyNumberListener('1'));
        m_jKey2.addActionListener(new MyKeyNumberListener('2'));
        m_jKey3.addActionListener(new MyKeyNumberListener('3'));
        m_jKey4.addActionListener(new MyKeyNumberListener('4'));
        m_jKey5.addActionListener(new MyKeyNumberListener('5'));
        m_jKey6.addActionListener(new MyKeyNumberListener('6'));
        m_jKey7.addActionListener(new MyKeyNumberListener('7'));
        m_jKey8.addActionListener(new MyKeyNumberListener('8'));
        m_jKey9.addActionListener(new MyKeyNumberListener('9'));
        m_jKeyDot.addActionListener(new MyKeyNumberListener('.'));
        m_jMultiply.addActionListener(new MyKeyNumberListener('*'));
        m_jCE.addActionListener(new MyKeyNumberListener('\u007f'));
        m_jPlus.addActionListener(new MyKeyNumberListener('+'));        
        m_jMinus.addActionListener(new MyKeyNumberListener('-'));        
        m_jEquals.addActionListener(new MyKeyNumberListener('='));
    }

    public void setNumbersOnly(boolean value) {
        m_jEquals.setVisible(value);
        m_jMinus.setVisible(value);
        m_jPlus.setVisible(value);
        m_jMultiply.setVisible(value);
    }
    
    public void setEnabled(boolean b) {
        super.setEnabled(b);
        
        m_jKey0.setEnabled(b);
        m_jKey1.setEnabled(b);
        m_jKey2.setEnabled(b);
        m_jKey3.setEnabled(b);
        m_jKey4.setEnabled(b);
        m_jKey5.setEnabled(b);
        m_jKey6.setEnabled(b);
        m_jKey7.setEnabled(b);
        m_jKey8.setEnabled(b);
        m_jKey9.setEnabled(b);
        m_jKeyDot.setEnabled(b);
        m_jMultiply.setEnabled(b);
        m_jCE.setEnabled(b);
        m_jPlus.setEnabled(b);       
        m_jMinus.setEnabled(b);   
        m_jEquals.setEnabled(b);   
    }
    
    public boolean isNumbersOnly() {
        return m_jEquals.isVisible();
    }
    
    public void addJNumberEventListener(JNumberEventListener listener) {
        m_Listeners.add(listener);
    }
    public void removeJNumberEventListener(JNumberEventListener listener) {
        m_Listeners.remove(listener);
    }
    
    private class MyKeyNumberListener implements java.awt.event.ActionListener {
        
        private char m_cCad;
        
        public MyKeyNumberListener(char cCad){
            m_cCad = cCad;
        }
        public void actionPerformed(java.awt.event.ActionEvent evt) {
           
            JNumberEvent oEv = new JNumberEvent(JNumberKeys.this, m_cCad);            
            JNumberEventListener oListener;
            
            for (Enumeration e = m_Listeners.elements(); e.hasMoreElements();) {
                oListener = (JNumberEventListener) e.nextElement();
                oListener.keyPerformed(oEv);
            }
        }
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the FormEditor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
    private void initComponents() {
        java.awt.GridBagConstraints gridBagConstraints;

        m_jCE = new javax.swing.JButton();
        m_jMultiply = new javax.swing.JButton();
        m_jMinus = new javax.swing.JButton();
        m_jPlus = new javax.swing.JButton();
        m_jKey9 = new javax.swing.JButton();
        m_jKey8 = new javax.swing.JButton();
        m_jKey7 = new javax.swing.JButton();
        m_jKey4 = new javax.swing.JButton();
        m_jKey5 = new javax.swing.JButton();
        m_jKey6 = new javax.swing.JButton();
        m_jKey3 = new javax.swing.JButton();
        m_jKey2 = new javax.swing.JButton();
        m_jKey1 = new javax.swing.JButton();
        m_jKey0 = new javax.swing.JButton();
        m_jKeyDot = new javax.swing.JButton();
        m_jEquals = new javax.swing.JButton();

        setLayout(new java.awt.GridBagLayout());

        setBorder(new javax.swing.border.EmptyBorder(new java.awt.Insets(5, 5, 5, 5)));
        m_jCE.setIcon(new javax.swing.ImageIcon(getClass().getResource("/net/adrianromero/images/btnce.png")));
        m_jCE.setFocusPainted(false);
        m_jCE.setFocusable(false);
        m_jCE.setMargin(new java.awt.Insets(8, 16, 8, 16));
        m_jCE.setRequestFocusEnabled(false);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.gridwidth = 2;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        add(m_jCE, gridBagConstraints);

        m_jMultiply.setIcon(new javax.swing.ImageIcon(getClass().getResource("/net/adrianromero/images/btnmult.png")));
        m_jMultiply.setFocusPainted(false);
        m_jMultiply.setFocusable(false);
        m_jMultiply.setMargin(new java.awt.Insets(8, 16, 8, 16));
        m_jMultiply.setRequestFocusEnabled(false);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 2;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        gridBagConstraints.insets = new java.awt.Insets(0, 5, 0, 0);
        add(m_jMultiply, gridBagConstraints);

        m_jMinus.setIcon(new javax.swing.ImageIcon(getClass().getResource("/net/adrianromero/images/btnminus.png")));
        m_jMinus.setFocusPainted(false);
        m_jMinus.setFocusable(false);
        m_jMinus.setMargin(new java.awt.Insets(8, 16, 8, 16));
        m_jMinus.setRequestFocusEnabled(false);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 3;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        gridBagConstraints.insets = new java.awt.Insets(0, 5, 0, 0);
        add(m_jMinus, gridBagConstraints);

        m_jPlus.setIcon(new javax.swing.ImageIcon(getClass().getResource("/net/adrianromero/images/btnplus.png")));
        m_jPlus.setFocusPainted(false);
        m_jPlus.setFocusable(false);
        m_jPlus.setMargin(new java.awt.Insets(8, 16, 8, 16));
        m_jPlus.setRequestFocusEnabled(false);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 3;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.gridheight = 2;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        gridBagConstraints.insets = new java.awt.Insets(5, 5, 0, 0);
        add(m_jPlus, gridBagConstraints);

        m_jKey9.setIcon(new javax.swing.ImageIcon(getClass().getResource("/net/adrianromero/images/btn9.png")));
        m_jKey9.setFocusPainted(false);