/** Restores a serialized object. */ private void readObject(ObjectInputStream s) throws ClassNotFoundException, IOException { s.defaultReadObject(); valueDrawer = defaultValueDrawer; }
public void actionPerformed(ActionEvent e) { System.out.println("actionPerformed"); if (e.getSource() == pen) // 画笔 { System.out.println("pen"); toolFlag = 0; } if (e.getSource() == eraser) // 橡皮 { System.out.println("eraser"); toolFlag = 1; } if (e.getSource() == clear) // 清除 { System.out.println("clear"); toolFlag = 2; paintInfo.removeAllElements(); repaint(); } if (e.getSource() == drLine) // 画线 { System.out.println("drLine"); toolFlag = 3; } if (e.getSource() == drCircle) // 画圆 { System.out.println("drCircle"); toolFlag = 4; } if (e.getSource() == drRect) // 画矩形 { System.out.println("drRect"); toolFlag = 5; } if (e.getSource() == colchooser) // 调色板 { System.out.println("colchooser"); Color newColor = JColorChooser.showDialog(this, "我的调色板", c); c = newColor; } if (e.getSource() == openPic) // 打开图画 { openPicture.setVisible(true); if (openPicture.getFile() != null) { int tempflag; tempflag = toolFlag; toolFlag = 2; repaint(); try { paintInfo.removeAllElements(); File filein = new File(openPicture.getDirectory(), openPicture.getFile()); picIn = new FileInputStream(filein); VIn = new ObjectInputStream(picIn); paintInfo = (Vector) VIn.readObject(); VIn.close(); repaint(); toolFlag = tempflag; } catch (ClassNotFoundException IOe2) { repaint(); toolFlag = tempflag; System.out.println("can not read object"); } catch (IOException IOe) { repaint(); toolFlag = tempflag; System.out.println("can not read file"); } } } if (e.getSource() == savePic) // 保存图画 { savePicture.setVisible(true); try { File fileout = new File(savePicture.getDirectory(), savePicture.getFile()); picOut = new FileOutputStream(fileout); VOut = new ObjectOutputStream(picOut); VOut.writeObject(paintInfo); VOut.close(); } catch (IOException IOe) { System.out.println("can not write object"); } } }