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Copyright (c) 2003, International Barcode Consortium
All rights reserved.

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are permitted provided that the following conditions are met:

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package net.sourceforge.barbecue.output;

import net.sourceforge.barbecue.BarcodeTestCase;
import net.sourceforge.barbecue.env.DefaultEnvironment;

import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.font.TextLayout;
import java.awt.font.FontRenderContext;
import java.io.StringWriter;
import java.text.StringCharacterIterator;
import java.text.CharacterIterator;

public class SVGOutputTest extends BarcodeTestCase {
	private SVGOutput output;
	private StringWriter svg;
	private Color fgColour;
	private Color bgColour;
	public static final String HEADER = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
			"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 20001102//EN\" \"http://www.w3.org/TR/2000/CR-SVG-20001102/DTD/svg-20001102.dtd\">\n<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"10.0in\" height=\"10.0in\"";
	public static final String FOOTER = "</svg>";
	private LabelLayout centeredLayout;

	protected void setUp() throws Exception {
		super.setUp();
		svg = new StringWriter();
		fgColour = Color.black;
		bgColour = Color.white;
		output = new SVGOutput(svg, DefaultEnvironment.DEFAULT_FONT, fgColour, bgColour, 1, "in");
		output.beginDraw();
		centeredLayout = LabelLayoutFactory.createCenteredLayout(10, 10, 100);
		centeredLayout.setTextLayout(new TextLayout("FOO", DefaultEnvironment.DEFAULT_FONT, new FontRenderContext(new AffineTransform(0, 0, 0, 0, 0, 0), false, false)));
	}

	public void testBeginDrawWritesSVGHeader() throws Exception {
		output.endDraw(10, 10);
		String expected = HEADER + " />\n";
		assertSVGEquals(expected, svg.toString());
	}

	public void testUnitsAreCorrectInSVG() throws Exception {
		output = new SVGOutput(svg, DefaultEnvironment.DEFAULT_FONT, fgColour, bgColour, 1, "cm");
		output.beginDraw();
		output.endDraw(10, 10);
		assertSVGEquals("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
					 "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 20001102//EN\" \"http://www.w3.org/TR/2000/CR-SVG-20001102/DTD/svg-20001102.dtd\">\n<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"10.0cm\" height=\"10.0cm\" />", svg.toString().trim());
	}

	public void testDrawBarOutputsSVGRectangle() throws Exception {
		output.drawBar(10, 10, 1, 50, true);
		output.endDraw(10, 10);
		assertSVGEquals(HEADER + "><rect xmlns=\"\" x=\"10.0in\" y=\"10.0in\" width=\"1.0in\" height=\"50.0in\" style=\"fill:#000000;\" />" + FOOTER, svg.toString().trim());
	}

	public void testDrawBarInBackGroundColourChangesSVGFill() throws Exception {
		output.drawBar(10, 10, 1, 50, false);
		output.endDraw(10, 10);
		assertSVGEquals(HEADER + "><rect xmlns=\"\" x=\"10.0in\" y=\"10.0in\" width=\"1.0in\" height=\"50.0in\" style=\"fill:#FFFFFF;\" />" + FOOTER, svg.toString().trim());
	}

	public void testDrawTextOutputsSVGText() throws Exception {
		output.drawText("FOO", centeredLayout);
		output.endDraw(10, 10);
		assertSVGEquals(HEADER + "><text xmlns=\"\" x=\"10.0in\" y=\"10.0in\" style=\"font-family: Arial; font-size: 20pt; font-style: normal; \">FOO</text>" + FOOTER, svg.toString().trim());
	}

	public void testFontFaceIsReflectedInSVG() throws Exception {
		Font font = new Font("Times New Roman", Font.PLAIN, 20);
		output = new SVGOutput(svg, font, fgColour, bgColour, 1, "in");
		centeredLayout.setTextLayout(new TextLayout("FOO", font, new FontRenderContext(new AffineTransform(0, 0, 0, 0, 0, 0), false, false)));
		output.beginDraw();
		output.drawText("FOO", centeredLayout);
		output.endDraw(10, 10);
		assertSVGEquals(HEADER + "><text xmlns=\"\" x=\"10.0in\" y=\"10.0in\" style=\"font-family: Times New Roman; font-size: 20pt; font-style: normal; \">FOO</text>" + FOOTER, svg.toString());
	}

	public void testBoldFontIsDecoractedCorrectlyInSVG() throws Exception {
		Font font = new Font("Times New Roman", Font.BOLD, 20);
		output = new SVGOutput(svg, font, fgColour, bgColour, 1, "in");
		centeredLayout.setTextLayout(new TextLayout("FOO", font, new FontRenderContext(new AffineTransform(0, 0, 0, 0, 0, 0), false, false)));
		output.beginDraw();
		output.drawText("FOO", centeredLayout);
		output.endDraw(10, 10);
		assertSVGEquals(HEADER + "><text xmlns=\"\" x=\"10.0in\" y=\"10.0in\" style=\"font-family: Times New Roman; font-size: 20pt; font-weight: bold; \">FOO</text>" + FOOTER, svg.toString());
	}
	
	public void testItalicFontIsDecoractedCorrectlyInSVG() throws Exception {
		Font font = new Font("Times New Roman", Font.ITALIC, 20);
		output = new SVGOutput(svg, font, fgColour, bgColour, 1, "in");
		centeredLayout.setTextLayout(new TextLayout("FOO", font, new FontRenderContext(new AffineTransform(0, 0, 0, 0, 0, 0), false, false)));
		output.beginDraw();
		output.drawText("FOO", centeredLayout);
		output.endDraw(10, 10);
		assertSVGEquals(HEADER + "><text xmlns=\"\" x=\"10.0in\" y=\"10.0in\" style=\"font-family: Times New Roman; font-size: 20pt; font-style: italic; \">FOO</text>" + FOOTER, svg.toString());
	}

	public void testUnknownFontDecorationIsShownAsNormalInSVG() throws Exception {
		Font font = new Font("Times New Roman", 99, 20);
		output = new SVGOutput(svg, font, fgColour, bgColour, 1, "in");
		centeredLayout.setTextLayout(new TextLayout("FOO", font, new FontRenderContext(new AffineTransform(0, 0, 0, 0, 0, 0), false, false)));		
		output.beginDraw();
		output.drawText("FOO", centeredLayout);
		output.endDraw(10, 10);
		assertSVGEquals(HEADER + "><text xmlns=\"\" x=\"10.0in\" y=\"10.0in\" style=\"font-family: Times New Roman; font-size: 20pt; font-style: normal; \">FOO</text>" + FOOTER, svg.toString());
	}
    
    public void testDefaultFontInformationUsedIfFontIsNull() throws Exception {
        output = new SVGOutput(svg, null, fgColour, bgColour, 1, "in");
		output.beginDraw();
		output.drawText("FOO", centeredLayout);
		output.endDraw(10, 10);
		assertSVGEquals(HEADER + "><text xmlns=\"\" x=\"10.0in\" y=\"10.0in\" style=\"font-family: Arial; font-size: 20pt; font-style: normal; \">FOO</text>\n</svg>\n", svg.toString());
    }

	private void assertSVGEquals(String s1, String s2) {
		s1 = normalise(s1);
		s2 = normalise(s2);
		assertEquals(s1, s2);
	}

	private String normalise(String s) {
		StringBuffer buf = new StringBuffer();
		StringCharacterIterator iter = new StringCharacterIterator(s);
		for (char c = iter.first(); c != CharacterIterator.DONE; c = iter.next()) {
			if (Character.isDefined(c) && !Character.isISOControl(c)) {
				buf.append(c);
			}
		}
		return buf.toString();
	}
}