Drawing2D工具类写入图片

pjcloud-hardware/pjcloud-hardware-api/src/main/java/com/bsd/pjcloud/hard/api/utils/Drawing2D.java

@@ -1,5 +1,7 @@
 package com.bsd.pjcloud.hard.api.utils;
 
+import lombok.extern.slf4j.Slf4j;
+
 import javax.imageio.ImageIO;
 import java.awt.*;
 import java.awt.image.BufferedImage;
@@ -8,6 +10,7 @@ import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 
+@Slf4j
 public class Drawing2D {
 
     /**
@@ -26,8 +29,13 @@ public class Drawing2D {
     private final int canvasHeight = 200;
 
     private int currentWidth = canvasWidth;
+
     private int currentHeight = canvasHeight;
 
+    private final int canvasImageWidth = 300;
+
+    private final int canvasImageHeight = 300;
+
     private final int horizontalPadding = 20;
 
     private final String fontFamily = "黑体";
@@ -92,7 +100,8 @@ public class Drawing2D {
         textPadding();
         computedLineHeight();
         Point point = centerPosition(str);
-        graphics.drawString(str, point.x, getCurrentY());
+        int y = getCurrentY();
+        graphics.drawString(str, point.x, y);
         textPadding();
         return this;
     }
@@ -144,6 +153,27 @@ public class Drawing2D {
         return this;
     }
 
+    public Drawing2D drawImage(InputStream inputStream) {
+        try {
+            BufferedImage image = ImageIO.read(inputStream);
+            if (image == null) return this;
+            // 获取图片的原始宽度和高度
+            int originalWidth = image.getWidth();
+            int originalHeight = image.getHeight();
+            // 计算缩放比例，确保宽度不超过 canvasImageWidth
+            double scaleFactor = Math.min(1.0, (double) canvasImageWidth / originalWidth);
+            int scaledWidth = (int) (originalWidth * scaleFactor);
+            int scaledHeight = (int) (originalHeight * scaleFactor);
+            Point point = centerPosition(new Point(scaledWidth, scaledHeight));
+            currentY += scaledHeight;
+            computedHeight();
+            graphics.drawImage(image, point.x, point.y, scaledWidth, scaledHeight, null);
+        } catch (Exception e) {
+            log.error("绘制图片错误error:|{}|task:|{}|", e.getMessage(), e.getStackTrace());
+        }
+        return this;
+    }
+
     public InputStream getInputStream() throws IOException {
         drawingWhiteSide();
         graphics.dispose();
@@ -178,6 +208,12 @@ public class Drawing2D {
         return new Point(x, y);
     }
 
+    private Point centerPosition(Point point) {
+        // 中心X坐标
+        int x = (canvasWidth - point.x) / 2;
+        return new Point(x, currentY);
+    }
+
     private void drawingWhiteSide() {
         int borderSize = 15;
         BufferedImage borderedCanvas = new BufferedImage(currentWidth + borderSize * 2, currentHeight + borderSize * 2, BufferedImage.TYPE_INT_RGB);