poi/src/testcases/org/apache/poi/hssf/usermodel/TestHSSFPicture.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.hssf.usermodel;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;

import org.apache.poi.POIDataSamples;
import org.apache.poi.ddf.EscherBSERecord;
import org.apache.poi.hssf.HSSFITestDataProvider;
import org.apache.poi.hssf.HSSFTestDataSamples;
import org.apache.poi.hssf.model.InternalSheet;
import org.apache.poi.ss.usermodel.BaseTestPicture;
import org.apache.poi.ss.usermodel.ClientAnchor;
import org.apache.poi.ss.usermodel.CreationHelper;
import org.apache.poi.ss.usermodel.PictureData;
import org.apache.poi.ss.usermodel.Workbook;
import org.junit.Test;
import org.junit.Ignore;

/**
 * Test <code>HSSFPicture</code>.
 *
 * @author Yegor Kozlov (yegor at apache.org)
 */
public final class TestHSSFPicture extends BaseTestPicture {

    public TestHSSFPicture() {
        super(HSSFITestDataProvider.instance);
    }

    @Test
    public void resize() throws Exception {
        HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("resize_compare.xls");
        HSSFPatriarch dp = wb.getSheetAt(0).createDrawingPatriarch();
        List<HSSFShape> pics = dp.getChildren();
        HSSFPicture inpPic = (HSSFPicture)pics.get(0);
        HSSFPicture cmpPic = (HSSFPicture)pics.get(1);
        
        baseTestResize(inpPic, cmpPic, 2.0, 2.0);
        wb.close();
    }
    
    /**
     * Bug # 45829 reported ArithmeticException (/ by zero) when resizing png with zero DPI.
     */
    @Test
    public void bug45829() throws IOException {
        HSSFWorkbook wb = new HSSFWorkbook();
        HSSFSheet sh1 = wb.createSheet();
        HSSFPatriarch p1 = sh1.createDrawingPatriarch();

        byte[] pictureData = HSSFTestDataSamples.getTestDataFileContent("45829.png");
        int idx1 = wb.addPicture( pictureData, HSSFWorkbook.PICTURE_TYPE_PNG );
        HSSFPicture pic = p1.createPicture(new HSSFClientAnchor(), idx1);
        pic.resize();
        
        wb.close();
    }


    @SuppressWarnings("resource")
    @Test
    public void addPictures() throws IOException {
        HSSFWorkbook wb = new HSSFWorkbook();
        
        HSSFSheet sh = wb.createSheet("Pictures");
        HSSFPatriarch dr = sh.createDrawingPatriarch();
        assertEquals(0, dr.getChildren().size());
        HSSFClientAnchor anchor = wb.getCreationHelper().createClientAnchor();

        //register a picture
        byte[] data1 = new byte[]{1, 2, 3};
        int idx1 = wb.addPicture(data1, Workbook.PICTURE_TYPE_JPEG);
        assertEquals(1, idx1);
        HSSFPicture p1 = dr.createPicture(anchor, idx1);
        assertArrayEquals(data1, p1.getPictureData().getData());

        // register another one
        byte[] data2 = new byte[]{4, 5, 6};
        int idx2 = wb.addPicture(data2, Workbook.PICTURE_TYPE_JPEG);
        assertEquals(2, idx2);
        HSSFPicture p2 = dr.createPicture(anchor, idx2);
        assertEquals(2, dr.getChildren().size());
        assertArrayEquals(data2, p2.getPictureData().getData());

        // confirm that HSSFPatriarch.getChildren() returns two picture shapes 
        assertArrayEquals(data1, ((HSSFPicture)dr.getChildren().get(0)).getPictureData().getData());
        assertArrayEquals(data2, ((HSSFPicture)dr.getChildren().get(1)).getPictureData().getData());

        // write, read back and verify that our pictures are there
        wb = HSSFTestDataSamples.writeOutAndReadBack(wb);
        List<? extends PictureData> lst2 =  wb.getAllPictures();
        assertEquals(2, lst2.size());
        assertArrayEquals(data1, lst2.get(0).getData());
        assertArrayEquals(data2, lst2.get(1).getData());

        // confirm that the pictures are in the Sheet's drawing
        sh = wb.getSheet("Pictures");
        dr = sh.createDrawingPatriarch();
        assertEquals(2, dr.getChildren().size());
        assertArrayEquals(data1, ((HSSFPicture)dr.getChildren().get(0)).getPictureData().getData());
        assertArrayEquals(data2, ((HSSFPicture)dr.getChildren().get(1)).getPictureData().getData());

        // add a third picture
        byte[] data3 = new byte[]{7, 8, 9};
        // picture index must increment across write-read
        int idx3 = wb.addPicture(data3, Workbook.PICTURE_TYPE_JPEG);
        assertEquals(3, idx3);
        HSSFPicture p3 = dr.createPicture(anchor, idx3);
        assertArrayEquals(data3, p3.getPictureData().getData());
        assertEquals(3, dr.getChildren().size());
        assertArrayEquals(data1, ((HSSFPicture)dr.getChildren().get(0)).getPictureData().getData());
        assertArrayEquals(data2, ((HSSFPicture)dr.getChildren().get(1)).getPictureData().getData());
        assertArrayEquals(data3, ((HSSFPicture)dr.getChildren().get(2)).getPictureData().getData());

        // write and read again
        wb = HSSFTestDataSamples.writeOutAndReadBack(wb);
        List<? extends PictureData> lst3 =  wb.getAllPictures();
        // all three should be there
        assertEquals(3, lst3.size());
        assertArrayEquals(data1, lst3.get(0).getData());
        assertArrayEquals(data2, lst3.get(1).getData());
        assertArrayEquals(data3, lst3.get(2).getData());

        sh = wb.getSheet("Pictures");
        dr = sh.createDrawingPatriarch();
        assertEquals(3, dr.getChildren().size());

        // forth picture
        byte[] data4 = new byte[]{10, 11, 12};
        int idx4 = wb.addPicture(data4, Workbook.PICTURE_TYPE_JPEG);
        assertEquals(4, idx4);
        dr.createPicture(anchor, idx4);
        assertEquals(4, dr.getChildren().size());
        assertArrayEquals(data1, ((HSSFPicture)dr.getChildren().get(0)).getPictureData().getData());
        assertArrayEquals(data2, ((HSSFPicture)dr.getChildren().get(1)).getPictureData().getData());
        assertArrayEquals(data3, ((HSSFPicture)dr.getChildren().get(2)).getPictureData().getData());
        assertArrayEquals(data4, ((HSSFPicture)dr.getChildren().get(3)).getPictureData().getData());

        wb = HSSFTestDataSamples.writeOutAndReadBack(wb);
        List<? extends PictureData> lst4 =  wb.getAllPictures();
        assertEquals(4, lst4.size());
        assertArrayEquals(data1, lst4.get(0).getData());
        assertArrayEquals(data2, lst4.get(1).getData());
        assertArrayEquals(data3, lst4.get(2).getData());
        assertArrayEquals(data4, lst4.get(3).getData());
        sh = wb.getSheet("Pictures");
        dr = sh.createDrawingPatriarch();
        assertEquals(4, dr.getChildren().size());
        assertArrayEquals(data1, ((HSSFPicture)dr.getChildren().get(0)).getPictureData().getData());
        assertArrayEquals(data2, ((HSSFPicture)dr.getChildren().get(1)).getPictureData().getData());
        assertArrayEquals(data3, ((HSSFPicture)dr.getChildren().get(2)).getPictureData().getData());
        assertArrayEquals(data4, ((HSSFPicture)dr.getChildren().get(3)).getPictureData().getData());
        
        wb.close();
    }

    @SuppressWarnings("unused")
    @Test
    public void bsePictureRef() throws IOException {
        HSSFWorkbook wb = new HSSFWorkbook();

        HSSFSheet sh = wb.createSheet("Pictures");
        HSSFPatriarch dr = sh.createDrawingPatriarch();
        HSSFClientAnchor anchor = new HSSFClientAnchor();

        InternalSheet ish = HSSFTestHelper.getSheetForTest(sh);

        //register a picture
        byte[] data1 = new byte[]{1, 2, 3};
        int idx1 = wb.addPicture(data1, Workbook.PICTURE_TYPE_JPEG);
        assertEquals(1, idx1);
        HSSFPicture p1 = dr.createPicture(anchor, idx1);

        EscherBSERecord bse = wb.getWorkbook().getBSERecord(idx1);

        assertEquals(bse.getRef(), 1);
        dr.createPicture(new HSSFClientAnchor(), idx1);
        assertEquals(bse.getRef(), 2);

        HSSFShapeGroup gr = dr.createGroup(new HSSFClientAnchor());
        gr.createPicture(new HSSFChildAnchor(), idx1);
        assertEquals(bse.getRef(), 3);
        
        wb.close();
    }

    @Test
    public void readExistingImage(){
        HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("drawings.xls");
        HSSFSheet sheet = wb.getSheet("picture");
        HSSFPatriarch drawing = sheet.getDrawingPatriarch();
        assertEquals(1, drawing.getChildren().size());

        HSSFPicture picture = (HSSFPicture) drawing.getChildren().get(0);
        assertEquals(picture.getFileName(), "test");
    }

    @SuppressWarnings("resource")
    @Test
    public void setGetProperties() throws IOException {
        HSSFWorkbook wb = new HSSFWorkbook();

        HSSFSheet sh = wb.createSheet("Pictures");
        HSSFPatriarch dr = sh.createDrawingPatriarch();
        HSSFClientAnchor anchor = new HSSFClientAnchor();

        //register a picture
        byte[] data1 = new byte[]{1, 2, 3};
        int idx1 = wb.addPicture(data1, Workbook.PICTURE_TYPE_JPEG);
        HSSFPicture p1 = dr.createPicture(anchor, idx1);

        assertEquals(p1.getFileName(), "");
        p1.setFileName("aaa");
        assertEquals(p1.getFileName(), "aaa");

        wb = HSSFTestDataSamples.writeOutAndReadBack(wb);
        sh = wb.getSheet("Pictures");
        dr = sh.getDrawingPatriarch();

        p1 = (HSSFPicture) dr.getChildren().get(0);
        assertEquals(p1.getFileName(), "aaa");
        wb.close();
    }

    @SuppressWarnings("resource")
    @Test
    public void bug49658() throws IOException {
    	// test if inserted EscherMetafileBlip will be read again
        HSSFWorkbook wb = new HSSFWorkbook();

        byte pictureDataEmf[] = POIDataSamples.getDocumentInstance().readFile("vector_image.emf");
        int indexEmf = wb.addPicture(pictureDataEmf, HSSFWorkbook.PICTURE_TYPE_EMF);
        byte pictureDataPng[] = POIDataSamples.getSpreadSheetInstance().readFile("logoKarmokar4.png");
        int indexPng = wb.addPicture(pictureDataPng, HSSFWorkbook.PICTURE_TYPE_PNG);
        byte pictureDataWmf[] = POIDataSamples.getSlideShowInstance().readFile("santa.wmf");
        int indexWmf = wb.addPicture(pictureDataWmf, HSSFWorkbook.PICTURE_TYPE_WMF);

        HSSFSheet sheet = wb.createSheet();
        HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
        CreationHelper ch = wb.getCreationHelper();

        ClientAnchor anchor = ch.createClientAnchor();
        anchor.setCol1(2);
        anchor.setCol2(5);
        anchor.setRow1(1);
        anchor.setRow2(6);
        patriarch.createPicture(anchor, indexEmf);
        
        anchor = ch.createClientAnchor();
        anchor.setCol1(2);
        anchor.setCol2(5);
        anchor.setRow1(10);
        anchor.setRow2(16);
        patriarch.createPicture(anchor, indexPng);

        anchor = ch.createClientAnchor();
        anchor.setCol1(6);
        anchor.setCol2(9);
        anchor.setRow1(1);
        anchor.setRow2(6);
        patriarch.createPicture(anchor, indexWmf);
        
        
        wb = HSSFTestDataSamples.writeOutAndReadBack(wb);
        byte pictureDataOut[] = wb.getAllPictures().get(0).getData();
        assertArrayEquals(pictureDataEmf, pictureDataOut);

        byte wmfNoHeader[] = new byte[pictureDataWmf.length-22];
        System.arraycopy(pictureDataWmf, 22, wmfNoHeader, 0, pictureDataWmf.length-22);
        pictureDataOut = wb.getAllPictures().get(2).getData();
        assertArrayEquals(wmfNoHeader, pictureDataOut);

        wb.close();
    }

}