apache-poi/src/testcases/org/apache/poi/sl/usermodel/BaseTestSlideShow.java

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   this work for additional information regarding copyright ownership.
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package org.apache.poi.sl.usermodel;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;

import java.awt.Color;
import java.awt.geom.Rectangle2D;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;

import org.apache.poi.POIDataSamples;
import org.apache.poi.common.usermodel.fonts.FontInfo;
import org.apache.poi.sl.draw.DrawPaint;
import org.apache.poi.sl.usermodel.PictureData.PictureType;
import org.apache.poi.sl.usermodel.TabStop.TabStopType;
import org.junit.Test;

public abstract class BaseTestSlideShow<
        S extends Shape<S,P>,
        P extends TextParagraph<S,P,? extends TextRun>
> {
    protected static final POIDataSamples slTests = POIDataSamples.getSlideShowInstance();

    public abstract SlideShow<S,P> createSlideShow();

    public abstract SlideShow<S,P> reopen(SlideShow<S,P> show);

    @Test
    public void addPicture_File() throws IOException {
        SlideShow<S,P> show = createSlideShow();
        File f = slTests.getFile("clock.jpg");

        assertEquals(0, show.getPictureData().size());
        PictureData picture = show.addPicture(f, PictureType.JPEG);
        assertEquals(1, show.getPictureData().size());
        assertSame(picture, show.getPictureData().get(0));

        show.close();
    }

    @Test
    public void addPicture_Stream() throws IOException {
        try (SlideShow<S,P> show = createSlideShow();
             InputStream stream = slTests.openResourceAsStream("clock.jpg")) {
            assertEquals(0, show.getPictureData().size());
            PictureData picture = show.addPicture(stream, PictureType.JPEG);
            assertEquals(1, show.getPictureData().size());
            assertSame(picture, show.getPictureData().get(0));
        }
    }

    @Test
    public void addPicture_ByteArray() throws IOException {
        SlideShow<S,P> show = createSlideShow();
        byte[] data = slTests.readFile("clock.jpg");

        assertEquals(0, show.getPictureData().size());
        PictureData picture = show.addPicture(data, PictureType.JPEG);
        assertEquals(1, show.getPictureData().size());
        assertSame(picture, show.getPictureData().get(0));

        show.close();
    }

    @Test
    public void findPicture() throws IOException {
        SlideShow<S,P> show = createSlideShow();
        byte[] data = slTests.readFile("clock.jpg");

        assertNull(show.findPictureData(data));
        PictureData picture = show.addPicture(data, PictureType.JPEG);
        PictureData found = show.findPictureData(data);
        assertNotNull(found);
        assertEquals(picture, found);

        show.close();
    }

    @Test
    public void addTabStops() throws IOException {
        try (final SlideShow<S,P> show1 = createSlideShow()) {
            // first set the TabStops in the Master sheet
            final MasterSheet<S,P> master1 = show1.getSlideMasters().get(0);
            final AutoShape<S,P> master1_as = (AutoShape<S,P>)master1.getPlaceholder(Placeholder.BODY);
            final P master1_tp = master1_as.getTextParagraphs().get(0);
            master1_tp.clearTabStops();
            int i1 = 0;
            for (final TabStopType tst : TabStopType.values()) {
                master1_tp.addTabStops(10+i1*10, tst);
                i1++;
            }

            // then set it on a normal slide
            final Slide<S,P> slide1 = show1.createSlide();
            final AutoShape<S,P> slide1_as = slide1.createAutoShape();
            slide1_as.setText("abc");
            slide1_as.setAnchor(new Rectangle2D.Double(100,100,100,100));
            final P slide1_tp = slide1_as.getTextParagraphs().get(0);
            slide1_tp.getTextRuns().get(0).setFontColor(new Color(0x563412));
            slide1_tp.clearTabStops();
            int i2 = 0;
            for (final TabStopType tst : TabStopType.values()) {
                slide1_tp.addTabStops(15+i2*5, tst);
                i2++;
            }

            try (final SlideShow<S,P> show2 = reopen(show1)) {
                final MasterSheet<S,P> master2 = show2.getSlideMasters().get(0);
                final AutoShape<S,P> master2_as = (AutoShape<S,P>)master2.getPlaceholder(Placeholder.BODY);
                final P master2_tp = master2_as.getTextParagraphs().get(0);
                final List<? extends TabStop> master2_tabStops = master2_tp.getTabStops();
                assertNotNull(master2_tabStops);
                int i3 = 0;
                for (final TabStopType tst : TabStopType.values()) {
                    final TabStop ts = master2_tabStops.get(i3);
                    assertEquals(10+i3*10, ts.getPositionInPoints(), 0.0);
                    assertEquals(tst, ts.getType());
                    i3++;
                }


                final Slide<S,P> slide2 = show2.getSlides().get(0);
                @SuppressWarnings("unchecked")
                final AutoShape<S,P> slide2_as = (AutoShape<S,P>)slide2.getShapes().get(0);
                final P slide2_tp = slide2_as.getTextParagraphs().get(0);
                final List<? extends TabStop> slide2_tabStops = slide2_tp.getTabStops();
                assertNotNull(slide2_tabStops);
                int i4 = 0;
                for (final TabStopType tst : TabStopType.values()) {
                    final TabStop ts = slide2_tabStops.get(i4);
                    assertEquals(15+i4*5, ts.getPositionInPoints(), 0.0);
                    assertEquals(tst, ts.getType());
                    i4++;
                }
            }
        }
    }

    @Test
    public void shapeAndSlideName() throws IOException {
        final String file = "SampleShow.ppt"+(getClass().getSimpleName().contains("XML")?"x":"");
        //noinspection unchecked
        try (final InputStream is = slTests.openResourceAsStream(file);
             final SlideShow<S,P> ppt = (SlideShow<S,P>)SlideShowFactory.create(is)) {
            final List<S> shapes1 = ppt.getSlides().get(0).getShapes();
            assertEquals("The Title", shapes1.get(0).getShapeName());
            assertEquals("Another Subtitle", shapes1.get(1).getShapeName());
            final List<S> shapes2 = ppt.getSlides().get(1).getShapes();
            assertEquals("Title 1", shapes2.get(0).getShapeName());
            assertEquals("Content Placeholder 2", shapes2.get(1).getShapeName());

            for (final Slide<S,P> slide : ppt.getSlides()) {
                final String expected = slide.getSlideNumber()==1 ? "FirstSlide" : "Slide2";
                assertEquals(expected, slide.getSlideName());
            }
        }
    }

    @Test
    public void addFont() throws IOException {
        try (SlideShow<S,P> ppt = createSlideShow()) {
            ppt.createSlide();
            try (InputStream fontData = slTests.openResourceAsStream("font.fntdata")) {
                ppt.addFont(fontData);
            }

            try (SlideShow<S, P> ppt2 = reopen(ppt)) {
                List<? extends FontInfo> fonts = ppt2.getFonts();
                assertFalse(fonts.isEmpty());
                FontInfo fi = fonts.get(fonts.size()-1);
                assertEquals("Harlow Solid Italic", fi.getTypeface());
            }
        }
    }

    public static Color getColor(PaintStyle paintActual) {
        return (paintActual instanceof PaintStyle.SolidPaint)
                ? DrawPaint.applyColorTransform(((PaintStyle.SolidPaint)paintActual).getSolidColor())
                : null;
    }

}