Lyt

PaintingBoard.iml

@@ -7,5 +7,6 @@
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" exported="" name="lib" level="project" />
   </component>
 </module>

src/Codes/start/MyFrame.java

@@ -4,12 +4,13 @@
 import Codes.tools.*;
 
 import javax.swing.*;
+import javax.swing.event.ChangeEvent;
 import java.awt.*;
 import java.awt.event.*;
+import java.awt.geom.AffineTransform;
 import java.io.Serial;
 import java.util.Objects;
 
-
 public class MyFrame extends JFrame {
 
     @Serial
@@ -18,6 +19,9 @@ public class MyFrame extends JFrame {
      * 保存文件的标志
      */
     public static int saved = 0;
+    static int height;
+    static int width;
+    static double offSetX, offSetY, zoomlvl;
 
 
     /**
@@ -78,6 +82,7 @@ public class MyFrame extends JFrame {
      粗细调节滑动条
     */
     public static MySlide slider;
+    public static MyZoom zoom;
 
     MyFrame() {
         init();
@@ -104,7 +109,7 @@ private void init() {
 //        slider.add(Box.createVerticalGlue()); // 添加弹性空间
         slider = new MySlide();
         add(slider, BorderLayout.EAST);
-
+        //add(zoom, BorderLayout.SOUTH);
         // 添加菜单
         menu = new MyMenu(this);
 
@@ -127,8 +132,16 @@ private void init() {
         // 创建各种基本图形的按钮
         drawingArea = new DrawPanel();
         this.add(drawingArea, BorderLayout.CENTER);
+        zoom=new MyZoom(drawingArea);
         statusBar = new JLabel();
-        this.add(statusBar, BorderLayout.SOUTH);
+        JPanel southPanel = new JPanel();
+        southPanel.setLayout(new BoxLayout(southPanel, BoxLayout.X_AXIS));
+
+        southPanel.add(statusBar);
+        southPanel.add(Box.createHorizontalStrut(30)); // 添加间距
+        southPanel.add(zoom);
+
+        add(southPanel, BorderLayout.SOUTH);
         statusBar.setText("坐标");
 
         /*

src/Codes/start/Start.java

@@ -6,13 +6,6 @@ public class Start {
      */
     public static MyFrame wds;
     public static void main(String[] args) {
-
-//		try {
-//			//调用Windows的文件系统
-//			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
-//		} catch (Exception e) {
-//            e.printStackTrace();
-//		}
         wds = new MyFrame();
     }
 

src/Codes/tools/DrawPanel.java

@@ -8,6 +8,7 @@
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
 import java.awt.event.MouseMotionAdapter;
+import java.awt.geom.AffineTransform;
 import java.io.Serial;
 import java.util.Objects;
 
@@ -21,7 +22,8 @@ public class DrawPanel extends JPanel
 
     @Serial
     private static final long serialVersionUID = 1L;
-
+    private double zoomLevel = 1.0;
+    private double offsetX = 0, offsetY = 0;
     public DrawPanel() {
         // 设置光标类型，为十字形
         this.setCursor(Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR));
@@ -31,19 +33,34 @@ public DrawPanel() {
         this.addMouseListener(new MouseAction());
         this.addMouseMotionListener(new MouseMotion());
     }
-
+    public void setZoomAndOffset(double zoom, double offsetX, double offsetY) {
+        this.zoomLevel = zoom;
+        this.offsetX = offsetX;
+        this.offsetY = offsetY;
+        repaint();
+    }
     //重写paintComponent方法，使得画板每次刷新时可将之前的所有图形重新画出来。
     @Override
     public void paintComponent(Graphics g) {
         super.paintComponent(g);
-        Graphics2D g2d = (Graphics2D) g; // 定义画板
-        int j = 0;
+        Graphics2D g2d = (Graphics2D) g;
 
-        while (j <= index) {
-            draw(g2d, itemList[j]);
-            j++;
+        // 保存当前变换
+        AffineTransform originalTransform = g2d.getTransform();
 
+        // 应用缩放和平移
+        g2d.translate(offsetX, offsetY);
+        g2d.scale(zoomLevel, zoomLevel);
+
+        // 绘制所有图形
+        for (int j = 0; j <= index; j++) {
+            if (itemList[j] != null) {
+                draw(g2d, itemList[j]);
+            }
         }
+
+        // 恢复原始变换
+        g2d.setTransform(originalTransform);
     }
 
     void draw(Graphics2D g2d, AbstractShape abstractShape) {
@@ -69,6 +86,7 @@ void draw(Graphics2D g2d, AbstractShape abstractShape) {
 //
 //            System.out.println(index);
 //        }
+
     public void undo() {
         if (index > 0) { // 确保有图形可以撤销
             System.out.println(index);
@@ -241,5 +259,8 @@ public void mouseMoved(MouseEvent e) {
             statusBar.setText("坐标:[" + e.getX() + "," + e.getY() + "]像素");
         }
     }
-
+    public void setZoomLevel(double zoomLevel) {
+        this.zoomLevel = zoomLevel;
+        repaint(); // 重新绘制面板
+    }
 }

src/Codes/tools/MyMenu.java

@@ -2,13 +2,11 @@
 
 import Codes.start.MyFrame;
 import Codes.start.Start;
-import javafx.geometry.Pos;
-import javafx.scene.control.Label;
-import javafx.scene.control.Slider;
-import javafx.scene.layout.HBox;
 
 import javax.imageio.ImageIO;
 import javax.swing.*;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
 import javax.swing.filechooser.FileFilter;
 import java.awt.*;
 import java.awt.event.InputEvent;
@@ -23,10 +21,6 @@
  * 菜单初始化部分
  */
 public class MyMenu {
-    static int height;
-    static int width;
-    static double offSetX, offSetY, zoomlvl;
-
     private final String[] strokes = {"/image/stroke1.png", "/image/stroke2.png", "/image/stroke3.png",
             "/image/stroke4.png"};
 
@@ -37,8 +31,8 @@ public MyMenu(MyFrame frame) {
     void addMenu(MyFrame frame) {
 
         /*
-        ** 顶部菜单条
-        */
+         ** 顶部菜单条
+         */
 
         JMenuBar jMenuBar = new JMenuBar();
         JMenuItem[] strokeItems = new JMenuItem[strokes.length];
@@ -212,76 +206,39 @@ void openFile() {
         if (fileName.getName().isEmpty()) {
             JOptionPane.showMessageDialog(fileChooser, "无效的文件名", "无效的文件名", JOptionPane.ERROR_MESSAGE);
         }
-        /*
-        BufferedImage image;
-try {
-    image = ImageIO.read(fileName);
-    if (image == null) {
-        JOptionPane.showMessageDialog(MyFrame.this, "无法读取图片！");
-        return;
-    }
-
-    // 获取图片原始尺寸
-    int imgWidth = image.getWidth();
-    int imgHeight = image.getHeight();
-
-    // 设置画布大小为图片大小
-    drawingArea.setPreferredSize(new Dimension(imgWidth, imgHeight));
-    drawingArea.revalidate();
-    drawingArea.repaint();
-
-    // 如果需要缩放图片适应画布（可选）
-    int canvasWidth = drawingArea.getWidth();
-    int canvasHeight = drawingArea.getHeight();
-    if (canvasWidth > 0 && canvasHeight > 0) {
-        // 按比例缩放图片
-        Image scaledImage = image.getScaledInstance(canvasWidth, canvasHeight, Image.SCALE_SMOOTH);
-        BufferedImage resizedImage = new BufferedImage(canvasWidth, canvasHeight, BufferedImage.TYPE_INT_ARGB);
-        Graphics2D g2d = resizedImage.createGraphics();
-        g2d.drawImage(scaledImage, 0, 0, null);
-        g2d.dispose();
-        image = resizedImage;
-    }
-
-    // 更新画布显示图片
-    index = 0;
-    currentChoice = 0;
-    drawingArea.createNewGraphics();
-    itemList[index].image = image;
-    itemList[index].board = drawingArea;
-    drawingArea.repaint();
-    index++;
-    currentChoice = 3;
-    drawingArea.createNewGraphics();
-    ColorChanger colorChanger=new ColorChanger(drawingArea);
-    colorChanger.processImage(image);
-} catch (IOException e) {
-    e.printStackTrace();
-}
-        * */
-        BufferedImage image;
-
-        //添加窗口缩放
-
-        HBox zoom = new HBox(10);
-        zoom.setAlignment(Pos.CENTER);
-        Slider zoomLvl = new Slider();
-        zoomLvl.setMax(4);
-        zoomLvl.setMin(1);
-        zoomLvl.setMaxWidth(200);
-        zoomLvl.setMinWidth(200);
-        javafx.scene.control.Label hint = new javafx.scene.control.Label("缩放程度");
-        javafx.scene.control.Label value = new Label("1.0");
-        zoom.getChildren().addAll(hint, zoomLvl, value);
-
-        offSetX = width / 2;
-        offSetY = height / 2;
-
 
         try {
             index = 0;
             currentChoice = 0;
-            image = ImageIO.read(fileName);
+            BufferedImage image = ImageIO.read(fileName);
+            if (image == null) {
+                JOptionPane.showMessageDialog(Start.wds, "无法读取图片！");
+                return;
+            }
+
+            // 获取图片原始尺寸
+            int imgWidth = image.getWidth();
+            int imgHeight = image.getHeight();
+
+            // 设置画布大小为图片大小
+            drawingArea.setPreferredSize(new Dimension(imgWidth, imgHeight));
+            drawingArea.revalidate();
+            drawingArea.repaint();
+
+            // 如果需要缩放图片适应画布（可选）
+            int canvasWidth = drawingArea.getWidth();
+            int canvasHeight = drawingArea.getHeight();
+            if (canvasWidth > 0 && canvasHeight > 0) {
+                // 按比例缩放图片
+                Image scaledImage = image.getScaledInstance(canvasWidth, canvasHeight, Image.SCALE_SMOOTH);
+                BufferedImage resizedImage = new BufferedImage(canvasWidth, canvasHeight, BufferedImage.TYPE_INT_ARGB);
+                Graphics2D g2d = resizedImage.createGraphics();
+                g2d.drawImage(scaledImage, 0, 0, null);
+                g2d.dispose();
+                image = resizedImage;
+            }
+
+            // 更新画布显示图片
             drawingArea.createNewGraphics();
             itemList[index].image = image;
             itemList[index].board = drawingArea;
@@ -292,9 +249,7 @@ void openFile() {
         } catch (IOException e) {
             e.printStackTrace();
         }
-
     }
-
     private JFileChooser getjFileChooser() {
         // 文件选择器
         JFileChooser fileChooser = new JFileChooser();
@@ -413,4 +368,4 @@ public String getDescription() {
 
     }
 
-}
+}