poi/src/scratchpad/testcases/org/apache/poi/hslf/usermodel/TestPicture.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.hslf.usermodel;

import static org.junit.Assert.*;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.HashMap;
import java.util.Map;

import javax.imageio.ImageIO;

import org.apache.poi.POIDataSamples;
import org.apache.poi.ddf.EscherBSERecord;
import org.apache.poi.hssf.usermodel.DummyGraphics2d;
import org.apache.poi.sl.draw.Drawable;
import org.apache.poi.sl.usermodel.Slide;
import org.apache.poi.sl.usermodel.SlideShow;
import org.apache.poi.util.JvmBugs;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.junit.Ignore;
import org.junit.Test;

/**
 * Test Picture shape.
 *
 * @author Yegor Kozlov
 */
public final class TestPicture {
    private static POIDataSamples _slTests = POIDataSamples.getSlideShowInstance();

    /**
     * Test that the reference count of a blip is incremented every time the picture is inserted.
     * This is important when the same image appears multiple times in a slide show.
     *
     */
    @Test
    public void multiplePictures() throws Exception {
        HSLFSlideShow ppt = new HSLFSlideShow();

        HSLFSlide s = ppt.createSlide();
        HSLFSlide s2 = ppt.createSlide();
        HSLFSlide s3 = ppt.createSlide();

        int idx = ppt.addPicture(_slTests.readFile("clock.jpg"), HSLFPictureShape.JPEG);
        HSLFPictureShape pict = new HSLFPictureShape(idx);
        HSLFPictureShape pict2 = new HSLFPictureShape(idx);
        HSLFPictureShape pict3 = new HSLFPictureShape(idx);

        pict.setAnchor(new Rectangle(10,10,100,100));
        s.addShape(pict);
        EscherBSERecord bse1 = pict.getEscherBSERecord();
        assertEquals(1, bse1.getRef());

        pict2.setAnchor(new Rectangle(10,10,100,100));
        s2.addShape(pict2);
        EscherBSERecord bse2 = pict.getEscherBSERecord();
        assertSame(bse1, bse2);
        assertEquals(2, bse1.getRef());

        pict3.setAnchor(new Rectangle(10,10,100,100));
        s3.addShape(pict3);
        EscherBSERecord bse3 = pict.getEscherBSERecord();
        assertSame(bse2, bse3);
        assertEquals(3, bse1.getRef());
    }

    /**
     * Picture#getEscherBSERecord threw NullPointerException if EscherContainerRecord.BSTORE_CONTAINER
     * was not found. The correct behaviour is to return null.
     */
    @Test
    public void bug46122() {
        HSLFSlideShow ppt = new HSLFSlideShow();
        HSLFSlide slide = ppt.createSlide();

        HSLFPictureShape pict = new HSLFPictureShape(-1); //index to non-existing picture data
        pict.setSheet(slide);
        HSLFPictureData data = pict.getPictureData();
        assertNull(data);

        BufferedImage img = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
        Graphics2D graphics = img.createGraphics();
        pict.draw(graphics);
    }

    @Test
    public void macImages() throws Exception {
        HSLFSlideShowImpl hss = new HSLFSlideShowImpl(_slTests.openResourceAsStream("53446.ppt"));

        HSLFPictureData[] pictures = hss.getPictures();
        assertEquals(15, pictures.length);

        int[][] expectedSizes = {
                null,           // WMF
                { 427, 428 },   // PNG
                { 371, 370 },   // PNG
                { 288, 183 },   // PNG
                { 285, 97 },    // PNG
                { 288, 168 },   // PNG
                null,           // WMF
                null,           // WMF
                { 199, 259 },   // PNG
                { 432, 244 },   // PNG
                { 261, 258 },   // PNG
                null,           // WMF
                null,           // WMF
                null,           // WMF
                null            // EMF
        };

        for (int i = 0; i < pictures.length; i++) {
            BufferedImage image = ImageIO.read(new ByteArrayInputStream(pictures[i].getData()));

            if (pictures[i].getType() != HSLFPictureShape.WMF && pictures[i].getType() != HSLFPictureShape.EMF) {
                assertNotNull(image);

                int[] dimensions = expectedSizes[i];
                assertEquals(dimensions[0], image.getWidth());
                assertEquals(dimensions[1], image.getHeight());
            }
        }
    }

    @Test
    // @Ignore("Just for visual validation - antialiasing is different on various systems")
    public void bug54541() throws Exception {
        String file = new String[]{
            "54542_cropped_bitmap.pptx",
            "54541_cropped_bitmap.ppt",
            "54541_cropped_bitmap2.ppt",
            "sample_pptx_grouping_issues.pptx"
        }[3];
        InputStream is = _slTests.openResourceAsStream(file);
        SlideShow ss = file.endsWith("pptx") ? new XMLSlideShow(is) : new HSLFSlideShow(is);
        is.close();
        
        boolean debugOut = false;
        Dimension pg = ss.getPageSize();
        int i=1;
        for(Slide<?,?,?> slide : ss.getSlides()) {
            if (debugOut) {
                DummyGraphics2d graphics = new DummyGraphics2d();
                slide.draw(graphics);
            } else {
                BufferedImage img = new BufferedImage(pg.width, pg.height, BufferedImage.TYPE_INT_RGB);
                Graphics2D graphics = img.createGraphics();
                fixFonts(graphics);
                slide.draw(graphics);
                ImageIO.write(img, "PNG", new File("test"+(i++)+"hslf.png"));
            }
        }
    }
    
    @SuppressWarnings("unchecked")
    private void fixFonts(Graphics2D graphics) {
        if (!JvmBugs.hasLineBreakMeasurerBug()) return;
        Map<String,String> fontMap = (Map<String,String>)graphics.getRenderingHint(Drawable.FONT_MAP);
        if (fontMap == null) fontMap = new HashMap<String,String>();
        fontMap.put("Calibri", "Lucida Sans");
        fontMap.put("Cambria", "Lucida Bright");
        graphics.setRenderingHint(Drawable.FONT_MAP, fontMap);        
    }
}