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

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package org.apache.poi.hssf.usermodel;

import org.apache.poi.ddf.EscherBSERecord;
import org.apache.poi.hssf.HSSFTestDataSamples;
import org.apache.poi.hssf.HSSFITestDataProvider;
import org.apache.poi.hssf.model.InternalSheet;
import org.apache.poi.ss.usermodel.BaseTestPicture;
import org.apache.poi.ss.usermodel.PictureData;
import org.apache.poi.ss.usermodel.Workbook;

import java.util.Arrays;
import java.util.List;

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

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

    public void testResize() {
        baseTestResize(new HSSFClientAnchor(0, 0, 848, 240, (short)0, 0, (short)1, 9));
    }

    /**
     * Bug # 45829 reported ArithmeticException (/ by zero) when resizing png with zero DPI.
     */
    public void test45829() {
        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();
    }


    public void testAddPictures(){
        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);
        assertTrue(Arrays.equals(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());
        assertTrue(Arrays.equals(data2, p2.getPictureData().getData()));

        // confirm that HSSFPatriarch.getChildren() returns two picture shapes 
        assertTrue(Arrays.equals(data1, ((HSSFPicture)dr.getChildren().get(0)).getPictureData().getData()));
        assertTrue(Arrays.equals(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());
        assertTrue(Arrays.equals(data1, lst2.get(0).getData()));
        assertTrue(Arrays.equals(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());
        assertTrue(Arrays.equals(data1, ((HSSFPicture)dr.getChildren().get(0)).getPictureData().getData()));
        assertTrue(Arrays.equals(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);
        assertTrue(Arrays.equals(data3, p3.getPictureData().getData()));
        assertEquals(3, dr.getChildren().size());
        assertTrue(Arrays.equals(data1, ((HSSFPicture)dr.getChildren().get(0)).getPictureData().getData()));
        assertTrue(Arrays.equals(data2, ((HSSFPicture)dr.getChildren().get(1)).getPictureData().getData()));
        assertTrue(Arrays.equals(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());
        assertTrue(Arrays.equals(data1, lst3.get(0).getData()));
        assertTrue(Arrays.equals(data2, lst3.get(1).getData()));
        assertTrue(Arrays.equals(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());
        assertTrue(Arrays.equals(data1, ((HSSFPicture)dr.getChildren().get(0)).getPictureData().getData()));
        assertTrue(Arrays.equals(data2, ((HSSFPicture)dr.getChildren().get(1)).getPictureData().getData()));
        assertTrue(Arrays.equals(data3, ((HSSFPicture)dr.getChildren().get(2)).getPictureData().getData()));
        assertTrue(Arrays.equals(data4, ((HSSFPicture)dr.getChildren().get(3)).getPictureData().getData()));

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

    public void testBSEPictureRef(){
        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);
    }

    public void testReadExistingImage(){
        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");
    }

    public void testSetGetProperties(){
        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");
    }
}