#472 Failing test for using a custom object drawer inside a fixed ele…

…ment.
danfickle · May 4, 2020 · e5e6b8d · e5e6b8d
1 parent e0baa44
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diff --git a/...examples/src/main/resources/visualtest/html/issue-472-add-semi-transparent-watermark.html b/...examples/src/main/resources/visualtest/html/issue-472-add-semi-transparent-watermark.html
@@ -0,0 +1,47 @@
+<html>
+<head>
+<style>
+@page {
+  size: 300px 300px;
+  margin: 10px;
+}
+object[type="watermark"] {
+  position: fixed;
+  display: block;
+  width: 100%;
+  height: 100%;
+  transform: rotate(45deg);
+  z-index: 1000;
+}
+</style>
+</head>
+<body>
+<object type="watermark"></object>
+
+Lorem ipsum dolor sit amet, consectetur adipiscing elit,
+sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
+Volutpat sed cras ornare arcu dui. Tempor id eu nisl nunc mi.
+Urna nec tincidunt praesent semper. Elementum tempus egestas sed sed.
+Consequat interdum varius sit amet mattis vulputate. Pulvinar etiam non quam
+lacus suspendisse. Ultrices vitae auctor eu augue ut lectus. Adipiscing at in
+tellus integer. Porta nibh venenatis cras sed felis eget. Fermentum iaculis eu
+non diam phasellus. Urna condimentum mattis pellentesque id. Eu scelerisque felis
+imperdiet proin. Arcu non odio euismod lacinia at quis risus.
+Porta nibh venenatis cras sed felis eget. Fermentum iaculis eu
+non diam phasellus. Urna condimentum mattis pellentesque id. Eu scelerisque felis
+imperdiet proin. Arcu non odio euismod lacinia at quis risus.
+
+Lorem ipsum dolor sit amet, consectetur adipiscing elit,
+sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
+Volutpat sed cras ornare arcu dui. Tempor id eu nisl nunc mi.
+Urna nec tincidunt praesent semper. Elementum tempus egestas sed sed.
+Consequat interdum varius sit amet mattis vulputate. Pulvinar etiam non quam
+lacus suspendisse. Ultrices vitae auctor eu augue ut lectus. Adipiscing at in
+tellus integer. Porta nibh venenatis cras sed felis eget. Fermentum iaculis eu
+non diam phasellus. Urna condimentum mattis pellentesque id. Eu scelerisque felis
+imperdiet proin. Arcu non odio euismod lacinia at quis risus.
+Porta nibh venenatis cras sed felis eget. Fermentum iaculis eu
+non diam phasellus. Urna condimentum mattis pellentesque id. Eu scelerisque felis
+imperdiet proin. Arcu non odio euismod lacinia at quis risus.
+</body>
+</html>
diff --git a/...-examples/src/test/java/com/openhtmltopdf/visualregressiontests/VisualRegressionTest.java b/...-examples/src/test/java/com/openhtmltopdf/visualregressiontests/VisualRegressionTest.java
@@ -1,18 +1,31 @@
 package com.openhtmltopdf.visualregressiontests;
 
+import java.awt.AlphaComposite;
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.Shape;
+import java.awt.geom.Rectangle2D;
 import java.io.File;
 import static org.junit.Assert.assertTrue;
 import java.io.IOException;
+import java.util.Map;
 
 import org.junit.Before;
 import org.junit.Ignore;
 import org.junit.Test;
+import org.w3c.dom.Element;
 
+import com.openhtmltopdf.extend.FSObjectDrawer;
+import com.openhtmltopdf.extend.FSObjectDrawerFactory;
+import com.openhtmltopdf.extend.OutputDevice;
+import com.openhtmltopdf.extend.OutputDeviceGraphicsDrawer;
 import com.openhtmltopdf.latexsupport.LaTeXDOMMutator;
 import com.openhtmltopdf.mathmlsupport.MathMLDrawer;
 import com.openhtmltopdf.objects.jfreechart.JFreeChartBarDiagramObjectDrawer;
 import com.openhtmltopdf.objects.jfreechart.JFreeChartPieDiagramObjectDrawer;
 import com.openhtmltopdf.render.DefaultObjectDrawerFactory;
+import com.openhtmltopdf.render.RenderingContext;
 import com.openhtmltopdf.svgsupport.BatikSVGDrawer;
 import com.openhtmltopdf.svgsupport.BatikSVGDrawer.SvgExternalResourceMode;
 import com.openhtmltopdf.svgsupport.BatikSVGDrawer.SvgScriptMode;
@@ -1040,6 +1053,61 @@ public void testIssue473BulletsInPageMargin() throws IOException {
          assertTrue(vt.runTest("issue-473-bullets-in-page-margin"));
     }
 
+    private static class WatermarkDrawer implements FSObjectDrawer {
+        @Override
+        public Map<Shape, String> drawObject(Element e, double x, double y, double width, double height,
+                OutputDevice outputDevice, RenderingContext ctx, int dotsPerPixel) {
+            outputDevice.drawWithGraphics((float) x, (float) y, (float) width / dotsPerPixel,
+                (float) height / dotsPerPixel, (Graphics2D g2d) -> {
+
+                double realWidth = width / dotsPerPixel;
+                double realHeight = height / dotsPerPixel;
+
+                Font font = new Font("Arial", Font.BOLD, 20);
+                Rectangle2D bounds = font.getStringBounds("OpenHTMLToPDF", g2d.getFontRenderContext());
+
+                g2d.setFont(font);
+                g2d.setPaint(Color.RED);
+                g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.3f));
+
+                g2d.drawString("OpenHTMLToPDF",
+                   (float) ((realWidth - bounds.getWidth()) / 2),
+                   (float) ((realHeight - bounds.getHeight()) / 2));
+
+            });
+
+            return null;
+        }
+    }
+
+    private static class WatermarkDrawerFactory implements FSObjectDrawerFactory {
+        @Override
+        public FSObjectDrawer createDrawer(Element e) {
+           if (isReplacedObject(e)) {
+              return new WatermarkDrawer();
+           }
+           return null;
+        }
+
+        @Override
+        public boolean isReplacedObject(Element e) {
+           return e.getAttribute("type").equals("watermark");
+        }
+    }
+
+    /**
+     * Tests adding a transparent watermark using a custom object drawer
+     * inside a fixed position object.
+     */
+    @Test
+    @Ignore // Works well on the first page, but not positioned correctly on
+            // subsequent pages.
+    public void testIssue472AddSemiTransparentWatermark() throws IOException {
+         assertTrue(vt.runTest("issue-472-add-semi-transparent-watermark", builder -> {
+             builder.useObjectDrawerFactory(new WatermarkDrawerFactory());
+         }));
+    }
+
     /**
      * Tests what the CSS content property is capable of.
      */