210729仿Windows自带“画图”软件.zip

import com.mr.util.DrawImageUtil; import com.mr.util.FrameGetShape; import com.mr.util.ShapeWindow; import com.mr.util.Shapes; import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.awt.geom.Ellipse2D; import java.awt.geom.Rectangle2D; import java.awt.image.BufferedImage; /** * @author WayLon * @create 2021-07-28 14:18 * 备注:画图主窗体 */ public class DrawPictureFrame extends JFrame implements FrameGetShape { BufferedImage image = new BufferedImage(570, 390, BufferedImage.TYPE_INT_BGR);// 创建一个8位BGR颜色分量的图像 Graphics gs = image.getGraphics();// 获得图像的绘图对象 Graphics2D g = (Graphics2D) gs;// 将绘图图像转换为Graphics2D类型 DrawPictureCanvas canvas = new DrawPictureCanvas();//创建画布对象 Color forecolor = Color.BLACK;// 定义前景色,在这里可以把前景色理解为画笔颜色 Color bacgroundColor = Color.WHITE;// 定义背景色 int x = -1, y = -1;// 上一次鼠标绘制点的横、纵坐标 boolean rubber = false;// 橡皮标识变量 boolean drawShape = false;// 画图形标识变量 Shapes shapes;// 绘画的图形 private JToolBar toolBar;// 工具栏 private JButton eraserButton;// 橡皮按钮 private JToggleButton strokeButton1;// 细线按钮 private JToggleButton strokeButton2;// 粗线按钮 private JToggleButton strokeButton3;// 较粗按钮 private JButton backgroundButton;// 背景色按钮 private JButton foregroundButton;// 前景色按钮 private JButton clearButton;// 清除按钮 private JButton saveButton;// 保存按钮 private JButton shapeButton;// 图形按钮 private JMenuItem strokeMenuItem1;// 细线菜单 private JMenuItem strokeMenuItem2;// 粗线菜单 private JMenuItem strokeMenuItem3;// 较粗菜单 private JMenuItem clearMenuItem;// 清除菜单 private JMenuItem helpMenuItem;// 帮助菜单 private JMenuItem foregroundMenuItem;// 前景色菜单 private JMenuItem backgroundMenuItem;// 背景色菜单 private JMenuItem eraserMenuItem;// 橡皮擦菜单 private JMenuItem exitMenuItem;// 退出菜单 private JMenuItem saveMenuItem;// 保存菜单 private JMenuItem shuiyinMenuItem;// 水印菜单 private String shuiyin = "";// 水印字符内容 private PictureWindow pictureWindow;// 简笔画展示窗体 private JButton showPicButton;// 展开简笔画的按钮 /** * 构造方法 */ public DrawPictureFrame() { ImageIcon imageIcon = new ImageIcon("src/img/themeicon.png"); Image image = imageIcon.getImage(); setIconImage(image);// 设置窗体图标 setResizable(false);// 窗体不能改变大小 setTitle("画图(水印内容:[" + shuiyin + "])");// 设置标题，添加水印内容提示 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(700, 300, 574, 460); init();// 组件初始化 addListener();// 添加组件监听 } /** * 启动程序 */ public static void main(String[] args) { DrawPictureFrame frame = new DrawPictureFrame(); frame.setVisible(true); } /** * 为组件添加动作监听 */ private void addListener() { // 画板添加鼠标移动事件监听 canvas.addMouseMotionListener(new MouseMotionListener() { @Override public void mouseDragged(final MouseEvent e) {// 当鼠标拖拽时 if (x > 0 && y > 0) {// 如果X和Y存在·鼠标记录 if (rubber) {// 如果橡皮标识为true,表示使用橡皮 g.setColor(bacgroundColor); g.fillRect(x, y, 10, 10);// 在鼠标滑过的位置画填充的正方形 } else {// 如果橡皮标识为false,表示用画笔画图 g.drawLine(x, y, e.getX(), e.getY());// 在鼠标滑过的位置画直线 } } x = e.getX(); y = e.getY(); canvas.repaint();// 更新画布 } @Override public void mouseMoved(MouseEvent e) { if (rubber) { // 设置鼠标指针的形状为图片 Toolkit kit = Toolkit.getDefaultToolkit();// 获得系统默认的组件工具包 // 利用工具包获取图片 Image img = kit.createImage("src/img/鼠标橡皮.png"); // 利用工具包创建一个自定义的光标对象 // 参数为图片、光标热点和光标描述字符串 Cursor c = kit.createCustomCursor(img, new Point(0, 0), "clear"); setCursor(c);// 使用自定义的光标 } else { setCursor(Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR)); } } }); canvas.addMouseListener(new MouseAdapter() { // 当按键松开时 @Override public void mouseReleased(MouseEvent e) { // 将记录上一次鼠标绘制点的横纵坐标恢复成-1 x = -1; y = -1; } // 当按键按下时 @Override public void mousePressed(MouseEvent e) { if (drawShape) {// 如果此时鼠标画的是图形 switch (shapes.getType()) {// 判断图形的种类 case Shapes.YUAN:// 如果是圆形 // 计算坐标,让鼠标处于图形中的中心位置 int yuanX = e.getX() - shapes.getWidth() / 2; int yuanY = e.getY() - shapes.getHeigth() / 2; // 创建圆形图形并指定坐标和宽高 Ellipse2D yuan = new Ellipse2D.Double(yuanX, yuanY, shapes.getWidth(), shapes.getHeigth()); g.draw(yuan);//画图工具画此圆形 break; case Shapes.FANG: int fangX = e.getX() - shapes.getWidth() / 2; int fangY = e.getY() - shapes.getHeigth() / 2; // 创建方形图形并指定坐标和宽高 Rectangle2D fang = new Rectangle2D.Double(fangX, fangY, shapes.getWidth(), shapes.getHeigth()); g.draw(fang);// 画图工具画此方形 break; } canvas.repaint(); // 画图形标识变量为false,说明现在鼠标画的是图形而不是线条 drawShape = false; } } }); // 工具栏添加鼠标移动监听 toolBar.addMouseMotionListener(new MouseMotionAdapter() { @Override public void mouseMoved(MouseEvent e) { // 设置鼠标指针的形状为默认光标 setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR)); } }); // 细线按钮添加动作监听 strokeButton1.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { do_stroke1_actionPerformed(); } }); // 粗线按钮添加动作监听 strokeButton2.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { do_stroke2_actionPerformed(); } }); // 较粗线按钮添加动作监听 strokeButt