CommandNewpage.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
 * 
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 * This file is part of PlantUML.
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 *
 * PlantUML distributed in the hope that it will be useful, but
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 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
 * License for more details.
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 * 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,
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 * Original Author:  Arnaud Roques
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 */
package net.sourceforge.plantuml.descdiagram.command;

import net.sourceforge.plantuml.NewpagedDiagram;
import net.sourceforge.plantuml.UmlDiagram;
import net.sourceforge.plantuml.command.CommandExecutionResult;
import net.sourceforge.plantuml.command.PSystemCommandFactory;
import net.sourceforge.plantuml.command.ParserPass;
import net.sourceforge.plantuml.command.SingleLineCommand2;
import net.sourceforge.plantuml.regex.IRegex;
import net.sourceforge.plantuml.regex.RegexConcat;
import net.sourceforge.plantuml.regex.RegexLeaf;
import net.sourceforge.plantuml.regex.RegexResult;
import net.sourceforge.plantuml.utils.LineLocation;

public class CommandNewpage extends SingleLineCommand2<UmlDiagram> {

	private final PSystemCommandFactory factory;

	public CommandNewpage(PSystemCommandFactory factory) {
		super(getRegexConcat());
		this.factory = factory;
	}

	static IRegex getRegexConcat() {
		return RegexConcat.build(CommandNewpage.class.getName(), RegexLeaf.start(), //
				new RegexLeaf("newpage"), RegexLeaf.end());
	}

	@Override
	protected CommandExecutionResult executeArg(UmlDiagram diagram, LineLocation location, RegexResult arg,
			ParserPass currentPass) {
		final int dpi = diagram.getSkinParam().getDpi();
		final UmlDiagram emptyDiagram = (UmlDiagram) factory.createEmptyDiagram(diagram.getSource(),
				diagram.getPrevious(), diagram.getPreprocessingArtifact());
		if (dpi != 96)
			emptyDiagram.setParam("dpi", "" + dpi);

		final NewpagedDiagram result = new NewpagedDiagram(diagram.getSource(), diagram, emptyDiagram,
				diagram.getPreprocessingArtifact());
		return CommandExecutionResult.newDiagram(result);
	}
}