plantuml/src/net/sourceforge/plantuml/wire/WireDiagram.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2020, Arnaud Roques
 *
 * Project Info:  http://plantuml.com
 * 
 * If you like this project or if you find it useful, you can support us at:
 * 
 * http://plantuml.com/patreon (only 1$ per month!)
 * http://plantuml.com/paypal
 * 
 * This file is part of PlantUML.
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * PlantUML distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
 * License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 *
 * Original Author:  Arnaud Roques
 *
 *
 */
package net.sourceforge.plantuml.wire;

import java.awt.geom.Dimension2D;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

import net.sourceforge.plantuml.AnnotatedWorker;
import net.sourceforge.plantuml.FileFormatOption;
import net.sourceforge.plantuml.ISkinParam;
import net.sourceforge.plantuml.Scale;
import net.sourceforge.plantuml.SkinParam;
import net.sourceforge.plantuml.UmlDiagram;
import net.sourceforge.plantuml.UmlDiagramType;
import net.sourceforge.plantuml.UseStyle;
import net.sourceforge.plantuml.command.CommandExecutionResult;
import net.sourceforge.plantuml.core.DiagramDescription;
import net.sourceforge.plantuml.core.ImageData;
import net.sourceforge.plantuml.graphic.InnerStrategy;
import net.sourceforge.plantuml.graphic.StringBounder;
import net.sourceforge.plantuml.graphic.TextBlock;
import net.sourceforge.plantuml.style.ClockwiseTopRightBottomLeft;
import net.sourceforge.plantuml.svek.TextBlockBackcolored;
import net.sourceforge.plantuml.ugraphic.ImageBuilder;
import net.sourceforge.plantuml.ugraphic.ImageParameter;
import net.sourceforge.plantuml.ugraphic.MinMax;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.color.HColor;

public class WireDiagram extends UmlDiagram {

	private final WBlock root = new WBlock("", 0, 0);
	private final List<Spot> spots = new ArrayList<Spot>();
	private final List<WLink> links = new ArrayList<WLink>();

	public DiagramDescription getDescription() {
		return new DiagramDescription("Wire Diagram");
	}

	@Override
	public UmlDiagramType getUmlDiagramType() {
		return UmlDiagramType.WIRE;
	}

	@Override
	protected ImageData exportDiagramInternal(OutputStream os, int index, FileFormatOption fileFormatOption)
			throws IOException {
		final Scale scale = getScale();

		final double dpiFactor = scale == null ? getScaleCoef(fileFormatOption) : scale.getScale(100, 100);
		final ISkinParam skinParam = getSkinParam();

		final int margin1;
		final int margin2;
		if (UseStyle.useBetaStyle()) {
			margin1 = SkinParam.zeroMargin(10);
			margin2 = SkinParam.zeroMargin(10);
		} else {
			margin1 = 10;
			margin2 = 10;
		}
		HColor backcolor = skinParam.getBackgroundColor(false);

		final ClockwiseTopRightBottomLeft margins = ClockwiseTopRightBottomLeft.margin1margin2(margin1, margin2);
		final String metadata = fileFormatOption.isWithMetadata() ? getMetadata() : null;
		final ImageParameter imageParameter = new ImageParameter(skinParam.getColorMapper(), skinParam.handwritten(),
				null, dpiFactor, metadata, "", margins, backcolor);

		final ImageBuilder imageBuilder = ImageBuilder.build(imageParameter);
		TextBlock result = getTextBlock();

		result = new AnnotatedWorker(this, skinParam, fileFormatOption.getDefaultStringBounder(getSkinParam()))
				.addAdd(result);
		imageBuilder.setUDrawable(result);

		return imageBuilder.writeImageTOBEMOVED(fileFormatOption, seed(), os);
	}

	private TextBlockBackcolored getTextBlock() {
		return new TextBlockBackcolored() {

			public void drawU(UGraphic ug) {
				drawMe(ug);
			}

			public Rectangle2D getInnerPosition(String member, StringBounder stringBounder, InnerStrategy strategy) {
				return null;
			}

			public Dimension2D calculateDimension(StringBounder stringBounder) {
				// return getDrawingElement().calculateDimension(stringBounder);
				throw new UnsupportedOperationException();

			}

			public MinMax getMinMax(StringBounder stringBounder) {
				throw new UnsupportedOperationException();
			}

			public HColor getBackcolor() {
				return null;
			}
		};
	}

	private void drawMe(UGraphic ug) {
		root.drawMe(ug);
		for (Spot spot : spots) {
			spot.drawMe(ug);
		}
		for (WLink link : links) {
			link.drawMe(ug);
		}

	}

	public CommandExecutionResult addComponent(String indent, String name, int width, int height) {
		final int level = indent.replace("    ", "\t").length();
		return this.root.addComponent(level, name, width, height);
	}

	public CommandExecutionResult newColumn(String indent) {
		final int level = indent.replace("    ", "\t").length();
		return this.root.newColumn(level);
	}

	public CommandExecutionResult spot(String name, HColor color, String x, String y) {
		final WBlock block = this.root.getBlock(name);
		if (block == null) {
			return CommandExecutionResult.error("No such element " + name);
		}
		final Spot spot = new Spot(block, color, x, y);
		this.spots.add(spot);
		return CommandExecutionResult.ok();
	}

	public CommandExecutionResult wgoto(String indent, double x, double y) {
		final int level = indent.replace("    ", "\t").length();
		return this.root.wgoto(level, x, y);
	}

	public CommandExecutionResult wmove(String indent, double x, double y) {
		final int level = indent.replace("    ", "\t").length();
		return this.root.wmove(level, x, y);
	}

	public CommandExecutionResult link(String name1, String x1, String y1, String name2, WLinkType type, HColor color) {
		final WBlock block1 = this.root.getBlock(name1);
		if (block1 == null) {
			return CommandExecutionResult.error("No such element " + name1);
		}
		final WBlock block2 = this.root.getBlock(name2);
		if (block2 == null) {
			return CommandExecutionResult.error("No such element " + name2);
		}
		final WLink link = new WLink(block1, x1, y1, block2, type, color);
		this.links.add(link);

		return CommandExecutionResult.ok();
	}

}