java简易Windows画板

package project; import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*; public class MiniDrawPad extends JFrame { /** * */ private static final long serialVersionUID = 1L; private ObjectInputStream input; private ObjectOutputStream output; private JMenuItem choices[]; private String names[]={ "New", "Open", "Save", "Pencil", "Line", "Rect", "fRect", "Oval", "fOval", "Circle", "fCircle", "RoundRect", "frRect", "Rubber", "Color", "Stroke", "Word" }; private String styleNames[]={" 宋体 " , " 隶书 " , " 华文彩云 " , " 仿宋_GB2312 " , " 华文行楷 " ," 方正舒体 " , " Times New Roman " , " Serif " , " Monospaced " ," SonsSerif " , " Garamond "}; //可供选择的字体项 JPopupMenu pmu = new JPopupMenu();// 创建弹出式菜单选项 private String tipText[]={ "New(N)","Open(O)","Save(S)","随心画(1)", "直线(2)","矩形(3)", "实矩形(4)", "空椭圆(5)","实椭圆(6)", "空心圆(7)", "实心圆(8)","圆角矩形(9)", "实心圆角矩形(10)","橡皮(E)", "颜色(C)","粗细","写字" }; JToolBar buttonPanel ; //定义按钮面板 private JLabel statusBar; //显示鼠标状态的提示条 private DrawPanel drawingArea; //画图区域 private int width=800,height=500; drawings[] itemList=new drawings[5000]; //用来存放基本图形的数组 private int currentChoice=3; int index=0; //当前已经绘制的图形数目 private Color color=Color.black; int R,G,B; int f1,f2; //用来存放当前字体风格 String style1; private float stroke=1.0f; JCheckBox bold,italic; JComboBox<?> styles; JMenuBar mb = new JMenuBar();// 创建菜单栏组件 JMenu a1 = new JMenu("文件(F)");// 创建菜单组件 JMenu a2 = new JMenu("形状(C)"); JMenu a3 = new JMenu("颜色(H)"); JMenu a4 = new JMenu("工具(T)"); @SuppressWarnings({ "unchecked", "rawtypes" }) public MiniDrawPad(){ super("Drawing Pad"); setLocation(100,50); setTitle("涂鸦板"); mb.add(a1); mb.add(a2); mb.add(a3); mb.add(a4); setJMenuBar(mb); drawingArea=new DrawPanel(); choices=new JMenuItem[names.length]; buttonPanel = new JToolBar( JToolBar.VERTICAL ) ; buttonPanel = new JToolBar( JToolBar.HORIZONTAL) ; ButtonHandler handler=new ButtonHandler(); ButtonHandler1 handler1=new ButtonHandler1(); //添加按钮 for (int i = 0; i < choices.length; i++) { choices[i]=new JMenuItem(tipText[i]); choices[i].setIcon(new ImageIcon("/project/images/IMG"+i+".jpg")); buttonPanel.add(choices[i]); } choices[0].setMnemonic(KeyEvent.VK_N);a1.add(choices[0]);// 文件 choices[1].setMnemonic(KeyEvent.VK_O);a1.add(choices[1]); choices[2].setMnemonic(KeyEvent.VK_S);a1.add(choices[2]); choices[3].setMnemonic(KeyEvent.VK_1);a2.add(choices[3]);//形状 choices[4].setMnemonic(KeyEvent.VK_2);a2.add(choices[4]); choices[5].setMnemonic(KeyEvent.VK_3);a2.add(choices[5]); choices[6].setMnemonic(KeyEvent.VK_4);a2.add(choices[6]); choices[7].setMnemonic(KeyEvent.VK_S);a2.add(choices[7]); choices[8].setMnemonic(KeyEvent.VK_S);a2.add(choices[8]); choices[9].setMnemonic(KeyEvent.VK_S);a2.add(choices[9]); choices[10].setMnemonic(KeyEvent.VK_S);a2.add(choices[10]); choices[11].setMnemonic(KeyEvent.VK_S);a2.add(choices[11]); choices[12].setMnemonic(KeyEvent.VK_S);a2.add(choices[12]); choices[14].setMnemonic(KeyEvent.VK_C);a3.add(choices[14]); //颜色 choices[13].setMnemonic(KeyEvent.VK_E);a4.add(choices[13]);//工具 for(int i=3;i<choices.length-3;i++){ choices[i].addActionListener(handler); } choices[0].addActionListener(new ActionListener(){public void actionPerformed(ActionEvent e){newFile();}} ); choices[1].addActionListener( new ActionListener() {public void actionPerformed(ActionEvent e){loadFile();}} ); choices[2].addActionListener( new ActionListener(){public void actionPerformed(ActionEvent e) {saveFile();}} ); choices[choices.length-3].addActionListener(handler1); choices[choices.length-2].addActionListener(handler1); choices[choices.length-1].addActionListener(handler1); //字体风格选择 styles=new JComboBox(styleNames); styles.setMaximumRowCount(8); styles.addItemListener( new ItemListener(){ public void itemStateChanged(ItemEvent e){style1=styleNames[styles.getSelectedIndex()];}}); //字体选择 bold=new JCheckBox("粗体"); italic=new JCheckBox("斜体"); pmu.add("制作者："); pmu.add("刘中江 梁倩 陈玉琪 李倩倩"); a1.setMnemonic(KeyEvent.VK_F);// 下拉框 快捷键 a2.setMnemonic(KeyEvent.VK_C); a3.setMnemonic(KeyEvent.VK_H); a4.setMnemonic(KeyEvent.VK_T); checkBoxHandler cHandler=new checkBoxHandler(); bold.addItemListener(cHandler); italic.addItemListener(cHandler); buttonPanel.add(bold); buttonPanel.add(italic); buttonPanel.add(styles); styles.setMinimumSize( new Dimension ( 50, 20 ) ); styles.setMaximumSize(new Dimension ( 100, 20 ) ); Container c=getContentPane(); super.setJMenuBar( mb ); //super.setJMenuBar( bar ); c.add(buttonPanel,BorderLayout.NORTH); c.add(drawingArea,BorderLayout.CENTER); statusBar=new JLabel(); c.add(statusBar,BorderLayout.SOUTH); statusBar.setText(" Welcome To The Little Drawing Pad!!! :)"); createNewItem(); setSize(width,height); setVisible(true); add(pmu);// 将弹出式菜单加入到窗口 pmu.show(this, 700, 300);// 在指定坐标显示弹出式菜单 pmu.setBackground(Color.gray); validate(); } public class ButtonHandler implements ActionListener{ public void actionPerformed(ActionEvent e){ for(int j=3;j<choices.length-3;j++){ if(e.getSource()==choices[j]) { currentChoice=j; createNewItem(); repaint(); } } } } public class ButtonHandler1 implements ActionListener{ public void actionPerformed(ActionEvent e){ if(e.getSource()==choices[choices.length-3]) {chooseColor();} if(e.getSource()==choices[choices.length-2]) {setStroke();} if(e.getSource()==choices[choices.length-1]) {JOptionPane.showMessageDialog(null, "请点击您要输入字符的位置", "Hint",JOptionPane.INFORMATION_MESSAGE ); currentChoice=14; createNewItem(); repaint(); } } } //鼠标事件 mouseA 类，继承了 MouseAdapter，用来完成鼠标相应事件操作 class mouseA extends MouseAdapter{ public void mousePressed(MouseEvent e){ statusBar.setText(" Mouse Pressed @:[" + e.getX() +", " + e.getY() + "]");//设置状态提示 itemList[index].x1=itemList[index].x2=e.getX(); itemList[index].y1=itemList[index].y2=e.getY(); //如果当前选择的图形是随笔画或者橡皮擦，则进行下面的操作 if(currentChoice==3||currentChoice==13) { itemList[index].x1=itemList[index].x2=e.getX(); itemList[index].y1=itemList[index].y2=e.getY(); index++; createNewItem(); } //如果当前选择的图形式文字输入，则进行下面操作 if(currentChoice==14) { itemList[index].x1=e.getX(); itemList[index].y1=e.getY(); String input; input=JOptionPane.showInputDialog( "请输入您要输入的字符!"); itemList[index].s1=input; itemList[index].x2=f1; itemList[index].y2=f2; itemList[index].s2=style1; index++; currentChoice=14; createNewItem(); drawingArea.repaint(); } } public void mouseReleased(MouseEvent e){ statusBar.setText(" Mouse Released @:[" + e.getX() +", " + e.getY() + "]"); if(currentChoice==3||currentChoice==13) { itemList[index].x1=e.getX(); itemList[index].y1=e.getY(); } itemList[index].x2=e.getX(); itemList[index].y2=e.getY(); repaint(); index++; create