src/ooxml/testcases/org/apache/poi/xslf/TestXSLFBugs.java

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   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
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package org.apache.poi.xslf;

import static junit.framework.TestCase.assertEquals;
import static org.apache.poi.POITestCase.assertContains;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;

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.net.URI;
import java.util.List;

import javax.imageio.ImageIO;

import org.apache.poi.POIXMLDocumentPart;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.xslf.usermodel.DrawingParagraph;
import org.apache.poi.xslf.usermodel.DrawingTextBody;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFPictureData;
import org.apache.poi.xslf.usermodel.XSLFPictureShape;
import org.apache.poi.xslf.usermodel.XSLFRelation;
import org.apache.poi.xslf.usermodel.XSLFShape;
import org.apache.poi.xslf.usermodel.XSLFSlide;
import org.apache.poi.xslf.usermodel.XSLFSlideLayout;
import org.junit.Ignore;
import org.junit.Test;

public class TestXSLFBugs {

    @Test
    @SuppressWarnings("deprecation")
    public void bug51187() throws Exception {
       XMLSlideShow ss = XSLFTestDataSamples.openSampleDocument("51187.pptx");
       
       assertEquals(1, ss.getSlides().size());
       XSLFSlide slide = ss.getSlides().get(0);
       
       // Check the relations on it
       // Note - rId3 is a self reference
       PackagePart slidePart = ss._getXSLFSlideShow().getSlidePart(
             ss._getXSLFSlideShow().getSlideReferences().getSldIdArray(0)
       );
       assertEquals("/ppt/slides/slide1.xml", slidePart.getPartName().toString());
       assertEquals("/ppt/slideLayouts/slideLayout12.xml", slidePart.getRelationship("rId1").getTargetURI().toString());
       assertEquals("/ppt/notesSlides/notesSlide1.xml", slidePart.getRelationship("rId2").getTargetURI().toString());
       assertEquals("/ppt/slides/slide1.xml", slidePart.getRelationship("rId3").getTargetURI().toString());
       assertEquals("/ppt/media/image1.png", slidePart.getRelationship("rId4").getTargetURI().toString());
       
       // Save and re-load
       ss = XSLFTestDataSamples.writeOutAndReadBack(ss);
       assertEquals(1, ss.getSlides().size());
       
       slidePart = ss._getXSLFSlideShow().getSlidePart(
             ss._getXSLFSlideShow().getSlideReferences().getSldIdArray(0)
       );
       assertEquals("/ppt/slides/slide1.xml", slidePart.getPartName().toString());
       assertEquals("/ppt/slideLayouts/slideLayout12.xml", slidePart.getRelationship("rId1").getTargetURI().toString());
       assertEquals("/ppt/notesSlides/notesSlide1.xml", slidePart.getRelationship("rId2").getTargetURI().toString());
       // TODO Fix this
       assertEquals("/ppt/slides/slide1.xml", slidePart.getRelationship("rId3").getTargetURI().toString());
       assertEquals("/ppt/media/image1.png", slidePart.getRelationship("rId4").getTargetURI().toString());
    }
    
    /**
     * Slide relations with anchors in them
     */
    @Test
    public void tika705() {
       XMLSlideShow ss = XSLFTestDataSamples.openSampleDocument("with_japanese.pptx");
       
       // Should have one slide
       assertEquals(1, ss.getSlides().size());
       XSLFSlide slide = ss.getSlides().get(0);
       
       // Check the relations from this
       List<POIXMLDocumentPart> rels = slide.getRelations();
       
       // Should have 6 relations:
       //   1 external hyperlink (skipped from list)
       //   4 internal hyperlinks
       //   1 slide layout
       assertEquals(5, rels.size());
       int layouts = 0;
       int hyperlinks = 0;
       for(POIXMLDocumentPart p : rels) {
          if(p.getPackageRelationship().getRelationshipType().equals(XSLFRelation.HYPERLINK.getRelation())) {
             hyperlinks++;
          } else if(p instanceof XSLFSlideLayout) {
             layouts++;
          }
       }
       assertEquals(1, layouts);
       assertEquals(4, hyperlinks);
       
       // Hyperlinks should all be to #_ftn1 or #ftnref1
       for(POIXMLDocumentPart p : rels) {
          if(p.getPackageRelationship().getRelationshipType().equals(XSLFRelation.HYPERLINK.getRelation())) {
             URI target = p.getPackageRelationship().getTargetURI();
             
             if(target.getFragment().equals("_ftn1") ||
                target.getFragment().equals("_ftnref1")) {
                // Good
             } else {
                fail("Invalid target " + target.getFragment() + " on " + target);
             }
          }
       }
    }
    
    /**
     * A slideshow can have more than one rID pointing to a given 
     *  slide, eg presentation.xml rID1 -> slide1.xml, but slide1.xml 
     *  rID2 -> slide3.xml
     */
    @Test
    @Ignore
    public void bug54916() throws Exception {
        XMLSlideShow ss = XSLFTestDataSamples.openSampleDocument("OverlappingRelations.pptx");
        XSLFSlide slide; 
        
        // Should find 4 slides
        assertEquals(4, ss.getSlides().size());
        
        // Check the text, to see we got them in order
        slide = ss.getSlides().get(0);
        assertContains("POI cannot read this", getSlideText(slide));
        
        slide = ss.getSlides().get(1);
        assertContains("POI can read this", getSlideText(slide));
        assertContains("Has a relationship to another slide", getSlideText(slide));
        
        slide = ss.getSlides().get(2);
        assertContains("POI can read this", getSlideText(slide));
        
        slide = ss.getSlides().get(3);
        assertContains("POI can read this", getSlideText(slide));
    }
    
    /**
     * When the picture is not embedded but inserted only as a "link to file", 
     * there is no data available and XSLFPictureShape.getPictureData()
     * gives a NPE, see bug #56812
     */
    @Test
    public void bug56812() throws Exception {
        XMLSlideShow ppt = XSLFTestDataSamples.openSampleDocument("56812.pptx");
        
        int internalPictures = 0;
        int externalPictures = 0;
        for (XSLFSlide slide : ppt.getSlides()){
            for (XSLFShape shape : slide.getShapes()){
                assertNotNull(shape);
                
                if (shape instanceof XSLFPictureShape) {
                    XSLFPictureShape picture = (XSLFPictureShape)shape;
                    if (picture.isExternalLinkedPicture()) {
                        externalPictures++;
                        
                        assertNotNull(picture.getPictureLink());
                    } else {
                        internalPictures++;
                        
                        XSLFPictureData data = picture.getPictureData();
                        assertNotNull(data);
                        assertNotNull(data.getFileName());
                    }
                }
            }
        }
        
        assertEquals(2, internalPictures);
        assertEquals(1, externalPictures);
    }

    @Test
    // @Ignore("Similar to TestFontRendering it doesn't make sense to compare images because of tiny rendering differences in windows/unix")
    public void bug54542() throws Exception {
        XMLSlideShow ss = XSLFTestDataSamples.openSampleDocument("54542_cropped_bitmap.pptx");
        
        Dimension pgsize = ss.getPageSize();
        
        XSLFSlide slide = ss.getSlides().get(0);
        
        // render it
        double zoom = 1;
        AffineTransform at = new AffineTransform();
        at.setToScale(zoom, zoom);
        
        BufferedImage imgActual = new BufferedImage((int)Math.ceil(pgsize.width*zoom), (int)Math.ceil(pgsize.height*zoom), BufferedImage.TYPE_3BYTE_BGR);
        Graphics2D graphics = imgActual.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.setTransform(at);                
        graphics.setPaint(Color.white);
        graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));
        slide.draw(graphics);             
        
        ImageIO.write(imgActual, "PNG", new File("bug54542.png"));
    }
    
    protected String getSlideText(XSLFSlide slide) {
        StringBuffer text = new StringBuffer();
        for(DrawingTextBody textBody : slide.getCommonSlideData().getDrawingText()) {
            for (DrawingParagraph p : textBody.getParagraphs()) {
                text.append(p.getText());
                text.append("\n");
            }
        }
        return text.toString();
    }

    @Test
    public void bug57250() throws Exception {
        XMLSlideShow ss = new XMLSlideShow();
        for (String s : new String[]{"Slide1","Slide2"}) {
            ss.createSlide().createTextBox().setText(s);
        }
        validateSlides(ss, false, "Slide1","Slide2");

        XSLFSlide slide = ss.createSlide();
        slide.createTextBox().setText("New slide");
        validateSlides(ss, true, "Slide1","Slide2","New slide");

        // Move backward
        ss.setSlideOrder(slide, 0);
        validateSlides(ss, true, "New slide","Slide1","Slide2");

        // Move forward
        ss.setSlideOrder(slide, 1);
        validateSlides(ss, true, "Slide1","New slide","Slide2");

        // Move to end
        ss.setSlideOrder(slide, 0);
        ss.setSlideOrder(slide, 2);
        validateSlides(ss, true, "Slide1","Slide2","New slide");
    }

    private void validateSlides(XMLSlideShow ss, boolean saveAndReload, String... slideTexts) {
        if (saveAndReload) {
            ss = XSLFTestDataSamples.writeOutAndReadBack(ss);
        }

        assertEquals(slideTexts.length, ss.getSlides().size());

        for (int i = 0; i < slideTexts.length; i++) {
            XSLFSlide slide = ss.getSlides().get(i);
            assertContains(getSlideText(slide), slideTexts[i]);
        }
    }

}