calculatorelements.java

java做的一个计算器

/*
 * 创建日期 2005-12-25
 *
 * TODO 要更改此生成的文件的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
package 计算器2;

/**
 * @author T~Master
 *
 * TODO 要更改此生成的类型注释的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */


import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.KeyEvent;

import javax.swing.JButton;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.KeyStroke;
import javax.swing.SwingConstants;
import javax.swing.UIManager;

public class CalculatorElements
{
  protected JMenuBar mb;
  protected JMenu menuEdit;
  protected JMenu menuView;
  protected JMenu menuHelp;
  protected JMenuItem itemCopy;
  protected JMenuItem itemPaste;
  protected JRadioButtonMenuItem itemCalComm;
  protected JRadioButtonMenuItem itemCalFunc;
  protected JCheckBoxMenuItem itemKetakugiru;
  protected JMenuItem itemTopicFind;
  protected JMenuItem itemVersion;

  protected JButton btnMc;
  protected JButton btnMr;
  protected JButton btnMs;
  protected JButton btnMp;
  protected JButton btnBack;
  protected JButton btnCe;
  protected JButton btnC;
  protected JButton btnPn;
  protected JButton btnDot;
  protected JButton btnPlus;
  protected JButton btnSub;
  protected JButton btnMulti;
  protected JButton btnDiv;
  protected JButton btnSqrt;
  protected JButton btnParcent;
  // 1/x, Reciprocal button
  protected JButton btnRecip;
  protected JButton btnEquals;
  // number button rank
  protected JButton btnNum[];

  protected JFrame fraMain;
  protected static CalLabel lblMem;
  protected static CalTextField txfDisplay;
  protected JPanel pnlFunc;
  protected JPanel pnlFunc_1;
  protected JPanel pnlFunc_2;

  protected JPanel pnlButton;
  protected JPanel pnlMain;
  
  public void elments_init()
  {
    
  	try {
  		  UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    } catch (Exception e) { }
  	
  	
  	fraMain = new JFrame("Calculator");
  	
    //Menu
  	mb = new JMenuBar();
    menuEdit = new JMenu("Edit");
    menuEdit.setMnemonic(KeyEvent.VK_E);
    menuView = new JMenu("View");
    menuView.setMnemonic(KeyEvent.VK_V);
    menuHelp = new JMenu("Help");
    menuHelp.setMnemonic(KeyEvent.VK_H);
    itemCopy = new JMenuItem("Copy",KeyEvent.VK_C);
    itemCopy.setActionCommand("copy");
    KeyStroke ctrlCKeyStroke = KeyStroke.getKeyStroke("control C");
    itemCopy.setAccelerator(ctrlCKeyStroke);
    
    itemPaste = new JMenuItem("Paste",KeyEvent.VK_P);
    itemPaste.setActionCommand("paste");
    KeyStroke ctrlVKeyStroke = KeyStroke.getKeyStroke("control V");
    itemPaste.setAccelerator(ctrlVKeyStroke);
    
    itemCalComm = new JRadioButtonMenuItem("Common cal(T)",true);
    itemCalComm.setMnemonic(KeyEvent.VK_T);
    itemCalComm.setActionCommand("typecomm");
    
    itemCalFunc = new JRadioButtonMenuItem("Function cal(S)");
    itemCalFunc.setMnemonic(KeyEvent.VK_S);
    itemCalFunc.setActionCommand("typefunc");
    
    itemKetakugiru = new JCheckBoxMenuItem("show the separator(I)");
    itemKetakugiru.setMnemonic(KeyEvent.VK_I);
    itemKetakugiru.setActionCommand("Ketakugiru");
    
    itemTopicFind = new JMenuItem("topic search(H)");
    itemTopicFind.setMnemonic(KeyEvent.VK_H);
    itemTopicFind.setActionCommand("topic");
    
    itemVersion = new JMenuItem("version info(A)");
    itemVersion.setMnemonic(KeyEvent.VK_A);
    itemVersion.setActionCommand("version");
    
    fraMain.setJMenuBar(mb);
    mb.add(menuEdit);
    mb.add(menuView);
    mb.add(menuHelp);
    menuEdit.add(itemCopy);
    menuEdit.add(itemPaste);
    menuView.add(itemCalComm);
    menuView.add(itemCalFunc);
    menuView.addSeparator();
    menuView.add(itemKetakugiru);
    menuHelp.add(itemTopicFind);
    menuHelp.addSeparator();
    menuHelp.add(itemVersion);

    // Button
    btnMc = new JButton("MC");
    btnMc.setForeground(Color.RED);
    btnMr = new JButton("MR");
    btnMr.setForeground(Color.RED);
    btnMs = new JButton("MS");
    btnMs.setForeground(Color.RED);
    btnMp = new JButton("M+");
    btnMp.setForeground(Color.RED);
    btnBack = new JButton("Back");
    btnBack.setForeground(Color.RED);
    btnCe = new JButton(" CE ");
    btnCe.setForeground(Color.RED);
    btnC = new JButton(" C  ");
    btnC.setForeground(Color.RED);
    btnPn = new JButton("+/-");
    btnPn.setForeground(Color.BLUE);
    btnDot = new JButton(".");
    btnDot.setForeground(Color.BLUE);
    btnPlus = new JButton("+");
    btnPlus.setForeground(Color.RED);
    btnSub = new JButton("-");
    btnSub.setForeground(Color.RED);
    btnMulti = new JButton("*");
    btnMulti.setForeground(Color.RED);
    btnDiv = new JButton("/");
    btnDiv.setForeground(Color.RED);
    btnSqrt = new JButton("sqrt");
    btnSqrt.setForeground(Color.BLUE);
    btnParcent = new JButton("%");
    btnParcent.setForeground(Color.BLUE);
    btnRecip = new JButton("1/x");
    btnRecip.setForeground(Color.BLUE);
    btnEquals = new JButton("=");
    btnEquals.setForeground(Color.RED);
    // unfocusable
    btnMc.setFocusable(false);
    btnMr.setFocusable(false);
    btnMs.setFocusable(false);
    btnMp.setFocusable(false);
    btnBack.setFocusable(false);
    btnCe.setFocusable(false);
    btnC.setFocusable(false);
    btnPn.setFocusable(false);
    btnDot.setFocusable(false);
    btnPlus.setFocusable(false);
    btnSub.setFocusable(false);
    btnMulti.setFocusable(false);
    btnDiv.setFocusable(false);
    btnSqrt.setFocusable(false);
    btnParcent.setFocusable(false);
    btnRecip.setFocusable(false);
    btnEquals.setFocusable(false);
    
    btnNum = new JButton[10];
    for(int i = 0; i < 10; i++)
    {
      btnNum[i] = new JButton(Integer.toString(i));
      btnNum[i].setFocusable(false);
      btnNum[i].setForeground(Color.BLUE);
    }
    
    // Label
    lblMem = new CalLabel();
    // Textbox
    txfDisplay = new CalTextField();
    // Panel
    pnlFunc = new JPanel();
    pnlButton = new JPanel();
    pnlFunc_1 = new JPanel();
    pnlFunc_2 = new JPanel();
    pnlMain = new JPanel();
    
    pnlFunc.setLayout(new BorderLayout());
    pnlFunc_1.add(lblMem);
    pnlFunc_2.setLayout(new FlowLayout());
    pnlFunc_2.add(btnBack);
    pnlFunc_2.add(btnCe);
    pnlFunc_2.add(btnC);
    pnlFunc.add(pnlFunc_1,"West");
    pnlFunc.add(pnlFunc_2,"East");
    
    pnlButton.setLayout(new GridLayout(4,5));
    pnlButton.add(btnMc);
    pnlButton.add(btnNum[7]);
    pnlButton.add(btnNum[8]);
    pnlButton.add(btnNum[9]);
    pnlButton.add(btnDiv);
    pnlButton.add(btnSqrt);
    pnlButton.add(btnMr);
    pnlButton.add(btnNum[4]);
    pnlButton.add(btnNum[5]);
    pnlButton.add(btnNum[6]);
    pnlButton.add(btnMulti);
    pnlButton.add(btnParcent);
    pnlButton.add(btnMs);
    pnlButton.add(btnNum[1]);
    pnlButton.add(btnNum[2]);
    pnlButton.add(btnNum[3]);
    pnlButton.add(btnSub);
    pnlButton.add(btnRecip);
    pnlButton.add(btnMp);
    pnlButton.add(btnNum[0]);
    pnlButton.add(btnPn);
    pnlButton.add(btnDot);
    pnlButton.add(btnPlus);
    pnlButton.add(btnEquals);
    
    pnlMain.setLayout(new BorderLayout());
    pnlMain.add(pnlFunc,"North");
    pnlMain.add(pnlButton,"Center");
    
    fraMain.getContentPane().add(txfDisplay,"North");
    fraMain.getContentPane().add(pnlMain,"Center");
  }

}