TestPPGraphics2D.java

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   this work for additional information regarding copyright ownership.
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package org.apache.poi.hslf.model;

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

import java.awt.*;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.util.List;

import org.apache.poi.POIDataSamples;
import org.apache.poi.hslf.usermodel.*;
import org.junit.Before;
import org.junit.Test;

/**
 * Test drawing shapes via Graphics2D
 *
 * @author Yegor Kozlov
 */
public final class TestPPGraphics2D {
    private static POIDataSamples _slTests = POIDataSamples.getSlideShowInstance();
    private HSLFSlideShow ppt;

    @Before
    public void setUp() throws Exception {
		ppt = new HSLFSlideShow(_slTests.openResourceAsStream("empty.ppt"));
    }

    @Test
    public void testGraphics() throws Exception {
    	// Starts off empty
    	assertTrue(ppt.getSlides().isEmpty());

    	// Add a slide
        HSLFSlide slide = ppt.createSlide();
    	assertEquals(1, ppt.getSlides().size());

    	// Add some stuff into it
        HSLFGroupShape group = new HSLFGroupShape();
        Dimension pgsize = ppt.getPageSize();
        java.awt.Rectangle bounds = new java.awt.Rectangle(0, 0, (int)pgsize.getWidth(), (int)pgsize.getHeight());
        group.setAnchor(bounds);
        slide.addShape(group);

        PPGraphics2D graphics = new PPGraphics2D(group);
        graphics.setColor(Color.blue);
        graphics.draw(new Rectangle(1296, 2544, 1344, 0));

        graphics.setColor(Color.red);
        graphics.setStroke(new BasicStroke((float)2.5));
        graphics.drawLine(500, 500, 1500, 2500);

        graphics.setColor(Color.green);
        graphics.setPaint(Color.gray);
        graphics.drawOval(4000, 1000, 1000, 1000);

        // Write the file out
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        ppt.write(out);
        out.close();

        // And read it back in
        ppt = new HSLFSlideShow(new HSLFSlideShowImpl(new ByteArrayInputStream(out.toByteArray())));
        assertEquals(1, ppt.getSlides().size());

        slide = ppt.getSlides().get(0);
        List<HSLFShape> shape = slide.getShapes();
        assertEquals(shape.size(), 1); //group shape

        assertTrue(shape.get(0) instanceof HSLFGroupShape); //group shape

        group = (HSLFGroupShape)shape.get(0);
        shape = group.getShapes();
        assertEquals(shape.size(), 3);
    }

}