blank page test

2023-05-07 12:56:38 +01:00
parent 07e81a117b
commit cc919ea614
2 changed files with 228 additions and 0 deletions
--- a/src/main/java/stirling/software/SPDF/utils/ImageFinder.java
+++ b/src/main/java/stirling/software/SPDF/utils/ImageFinder.java
@@ -0,0 +1,130 @@
+package stirling.software.SPDF.utils;
+
+import org.apache.pdfbox.contentstream.operator.Operator;
+import org.apache.pdfbox.contentstream.operator.OperatorName;
+import org.apache.pdfbox.cos.COSBase;
+import org.apache.pdfbox.cos.COSName;
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.graphics.PDXObject;
+import org.apache.pdfbox.pdmodel.graphics.form.PDFormXObject;
+import org.apache.pdfbox.pdmodel.graphics.image.PDImage;
+import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
+
+import java.awt.geom.Point2D;
+import java.io.IOException;
+import java.util.List;
+
+public class ImageFinder extends org.apache.pdfbox.contentstream.PDFGraphicsStreamEngine {
+    private boolean hasImages = false;
+
+    public ImageFinder(PDPage page) {
+        super(page);
+    }
+
+    public boolean hasImages() {
+        return hasImages;
+    }
+
+    @Override
+    protected void processOperator(Operator operator, List<COSBase> operands) throws IOException {
+        String operation = operator.getName();
+        if (operation.equals(OperatorName.DRAW_OBJECT)) {
+            COSBase base = operands.get(0);
+            if (base instanceof COSName) {
+                COSName objectName = (COSName) base;
+                PDXObject xobject = getResources().getXObject(objectName);
+                if (xobject instanceof PDImageXObject) {
+                    hasImages = true;
+                } else if (xobject instanceof PDFormXObject) {
+                    PDFormXObject form = (PDFormXObject) xobject;
+                    ImageFinder innerFinder = new ImageFinder(getPage());
+                    innerFinder.processPage(getPage());
+                    if (innerFinder.hasImages()) {
+                        hasImages = true;
+                    }
+                }
+            }
+        }
+        super.processOperator(operator, operands);
+    }
+
+	@Override
+	public void appendRectangle(Point2D p0, Point2D p1, Point2D p2, Point2D p3) throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void drawImage(PDImage pdImage) throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void clip(int windingRule) throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void moveTo(float x, float y) throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void lineTo(float x, float y) throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void curveTo(float x1, float y1, float x2, float y2, float x3, float y3) throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public Point2D getCurrentPoint() throws IOException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public void closePath() throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void endPath() throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void strokePath() throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void fillPath(int windingRule) throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void fillAndStrokePath(int windingRule) throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void shadingFill(COSName shadingName) throws IOException {
+		// TODO Auto-generated method stub
+		
+	}
+
+    // ... rest of the overridden methods
+}