plantuml/src/net/sourceforge/plantuml/command/CommandScaleMaxHeight.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2023, Arnaud Roques
 *
 * Project Info:  http://plantuml.com
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 * PlantUML distributed in the hope that it will be useful, but
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 * You should have received a copy of the GNU General Public
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 * Original Author:  Arnaud Roques
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 */
package net.sourceforge.plantuml.command;

import net.sourceforge.plantuml.AbstractPSystem;
import net.sourceforge.plantuml.LineLocation;
import net.sourceforge.plantuml.ScaleMaxHeight;
import net.sourceforge.plantuml.command.regex.IRegex;
import net.sourceforge.plantuml.command.regex.RegexConcat;
import net.sourceforge.plantuml.command.regex.RegexLeaf;
import net.sourceforge.plantuml.command.regex.RegexResult;

public class CommandScaleMaxHeight extends SingleLineCommand2<AbstractPSystem> {

	public static final CommandScaleMaxHeight ME = new CommandScaleMaxHeight();

	private CommandScaleMaxHeight() {
		super(getRegexConcat());
	}

	static IRegex getRegexConcat() {
		return RegexConcat.build(CommandScaleMaxHeight.class.getName(), RegexLeaf.start(), //
				new RegexLeaf("scale"), //
				RegexLeaf.spaceOneOrMore(), //
				new RegexLeaf("max"), //
				RegexLeaf.spaceOneOrMore(), //
				new RegexLeaf("HEIGHT", "([0-9.]+)"), //
				RegexLeaf.spaceOneOrMore(), //
				new RegexLeaf("height"), RegexLeaf.end()); //
	}

	@Override
	protected CommandExecutionResult executeArg(AbstractPSystem diagram, LineLocation location, RegexResult arg) {
		final double height = Double.parseDouble(arg.get("HEIGHT", 0));
		diagram.setScale(new ScaleMaxHeight(height));
		return CommandExecutionResult.ok();
	}

}