poi-scratchpad/src/test/java/org/apache/poi/hslf/model/TestLine.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
   (the "License"); you may not use this file except in compliance with
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       http://www.apache.org/licenses/LICENSE-2.0

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   distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.poi.hslf.model;

import static org.junit.jupiter.api.Assertions.assertEquals;

import java.awt.Color;
import java.awt.Rectangle;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import java.util.Arrays;

import org.apache.poi.hslf.HSLFTestDataSamples;
import org.apache.poi.hslf.usermodel.HSLFLine;
import org.apache.poi.hslf.usermodel.HSLFShape;
import org.apache.poi.hslf.usermodel.HSLFSlide;
import org.apache.poi.hslf.usermodel.HSLFSlideShow;
import org.apache.poi.sl.usermodel.StrokeStyle.LineCompound;
import org.apache.poi.sl.usermodel.StrokeStyle.LineDash;
import org.junit.jupiter.api.Test;

/**
 * Test Line shape.
 */
public final class TestLine {

    private static final Object[][] lines = {
        // line styles
        { 75, 200, LineCompound.SINGLE, Color.blue },
        { 75, 230, LineCompound.DOUBLE, 3.5 },
        { 75, 260, LineCompound.TRIPLE, 6d },
        { 75, 290, LineCompound.THICK_THIN, 4.5d },
        { 75, 320, LineCompound.THIN_THICK, 5.5d },
        // line dashing
        { 450, 200, LineDash.SOLID },
        { 450, 230, LineDash.DASH },
        { 450, 260, LineDash.DOT },
        { 450, 290, LineDash.DASH_DOT },
        { 450, 320, LineDash.LG_DASH_DOT_DOT },
        // Combinations
        { 75, 400, LineDash.DASH_DOT, LineCompound.TRIPLE, 5d },
        { 75, 430, LineDash.DASH, LineCompound.THICK_THIN, 4d },
        { 75, 460, LineDash.DOT, LineCompound.DOUBLE, 8d }
    };


    @Test
    void testCreateLines() throws IOException {

        try (HSLFSlideShow ppt1 = new HSLFSlideShow()) {
            HSLFSlide slide1 = ppt1.createSlide();
            slide1.addTitle().setText("Lines tester");

            for (Object[] line : lines) {
                HSLFLine hslfLine = new HSLFLine();
                hslfLine.setAnchor(new Rectangle((Integer)line[0], (Integer)line[1], 300, 0));
                for (Object attr : Arrays.copyOfRange(line, 2, line.length)) {
                    if (attr instanceof LineCompound) {
                        hslfLine.setLineCompound((LineCompound)attr);
                    } else if (attr instanceof Double) {
                        hslfLine.setLineWidth((Double)attr);
                    } else if (attr instanceof Color) {
                        hslfLine.setLineColor((Color)attr);
                    } else if (attr instanceof LineDash) {
                        hslfLine.setLineDash((LineDash)attr);
                    }
                }
                slide1.addShape(hslfLine);
            }

            try (HSLFSlideShow ppt2 = HSLFTestDataSamples.writeOutAndReadBack(ppt1)) {
                HSLFSlide slide2 = ppt2.getSlides().get(0);

                int idx = 0;
                for (HSLFShape shape : slide2.getShapes().subList(1,14)) {
                    HSLFLine hslfLine = (HSLFLine)shape;
                    Object[] line = lines[idx++];
                    Rectangle2D anchor = hslfLine.getAnchor();
                    assertEquals(line[0], (int)anchor.getX());
                    assertEquals(line[1], (int)anchor.getY());
                    for (Object attr : Arrays.copyOfRange(line, 2, line.length)) {
                        if (attr instanceof LineCompound) {
                            assertEquals(attr, hslfLine.getLineCompound());
                        } else if (attr instanceof Double) {
                            assertEquals(attr, hslfLine.getLineWidth());
                        } else if (attr instanceof Color) {
                            assertEquals(attr, hslfLine.getLineColor());
                        } else if (attr instanceof LineDash) {
                            assertEquals(attr, hslfLine.getLineDash());
                        }
                    }
                }
            }
        }
    }
}