1 files changed, 101 insertions, 0 deletions
diff --git a/src/ooxml/java/org/apache/poi/xslf/util/PPTX2PNG.java b/src/ooxml/java/org/apache/poi/xslf/util/PPTX2PNG.java
new file mode 100644
index 0000000000..f4e6955e6a
--- /dev/null
+++ b/src/ooxml/java/org/apache/poi/xslf/util/PPTX2PNG.java
@@ -0,0 +1,101 @@
+/*
+ *  ====================================================================
+ *    Licensed to the Apache Software Foundation (ASF) under one or more
+ *    contributor license agreements.  See the NOTICE file distributed with
+ *    this work for additional information regarding copyright ownership.
+ *    The ASF licenses this file to You under the Apache License, Version 2.0
+ *    (the "License"); you may not use this file except in compliance with
+ *    the License.  You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ * ====================================================================
+ */
+
+package org.apache.poi.xslf.util;
+
+import org.apache.poi.openxml4j.opc.OPCPackage;
+import org.apache.poi.xslf.usermodel.XMLSlideShow;
+import org.apache.poi.xslf.usermodel.XSLFSlide;
+
+import javax.imageio.ImageIO;
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Graphics2D;
+import java.awt.RenderingHints;
+import java.awt.geom.AffineTransform;
+import java.awt.geom.Rectangle2D;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.FileOutputStream;
+
+/**
+ * Date: 10/11/11
+ *
+ * @author Yegor Kozlov
+ */
+public class PPTX2PNG {
+    public static void main(String[] args) throws Exception {
+        if (args.length == 0) {
+            System.out.println("Usage: PPTX2PNG [options] <pptx file>");
+            return;
+        }
+
+        int slidenum = -1;
+        float scale = 1;
+        String file = null;
+
+        for (int i = 0; i < args.length; i++) {
+            if (args[i].startsWith("-")) {
+                if ("-scale".equals(args[i])) {
+                    scale = Float.parseFloat(args[++i]);
+                } else if ("-slide".equals(args[i])) {
+                    slidenum = Integer.parseInt(args[++i]);
+                }
+            } else {
+                file = args[i];
+            }
+        }
+
+        System.out.println("Processing " + file);
+        XMLSlideShow ppt = new XMLSlideShow(OPCPackage.open(file));
+
+        Dimension pgsize = ppt.getPageSize();
+        int width = (int) (pgsize.width * scale);
+        int height = (int) (pgsize.height * scale);
+
+        XSLFSlide[] slide = ppt.getSlides();
+        for (int i = 0; i < slide.length; i++) {
+            if (slidenum != -1 && slidenum != (i + 1)) continue;
+
+            String title = slide[i].getTitle();
+            System.out.println("Rendering slide " + (i + 1) + (title == null ? "" : ": " + title));
+
+            BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+            Graphics2D graphics = img.createGraphics();
+
+            graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+            graphics.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
+            graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
+            graphics.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
+
+            graphics.setPaint(Color.white);
+            graphics.fill(new Rectangle2D.Float(0, 0, width, height));
+
+            graphics.scale((double) width / pgsize.width, (double) height / pgsize.height);
+
+            slide[i].draw(graphics);
+
+            String fname = file.replaceAll("\\.pptx", "-" + (i + 1) + ".png");
+            FileOutputStream out = new FileOutputStream(fname);
+            ImageIO.write(img, "png", out);
+            out.close();
+        }
+        System.out.println("Done");
+    }
+}