GtileCircleSpot.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
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 * (C) Copyright 2009-2024, Arnaud Roques
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package net.sourceforge.plantuml.activitydiagram3.gtile;

import net.sourceforge.plantuml.activitydiagram3.ftile.Swimlane;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.FontConfiguration;
import net.sourceforge.plantuml.klimt.font.FontParam;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.font.UFont;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.shape.UCenteredCharacter;
import net.sourceforge.plantuml.klimt.shape.UEllipse;
import net.sourceforge.plantuml.skin.ColorParam;
import net.sourceforge.plantuml.skin.SkinParamUtils;
import net.sourceforge.plantuml.style.ISkinParam;
import net.sourceforge.plantuml.style.SName;
import net.sourceforge.plantuml.style.Style;
import net.sourceforge.plantuml.style.StyleSignatureBasic;

public class GtileCircleSpot extends AbstractGtile {

	private static final int SIZE = 20;

	private final String spot;
	private final FontConfiguration fc;
	private final HColor backColor;
	private double shadowing;

	private StyleSignatureBasic getDefaultStyleDefinitionCircle() {
		return StyleSignatureBasic.of(SName.root, SName.element, SName.activityDiagram, SName.circle);
	}

	public GtileCircleSpot(StringBounder stringBounder, ISkinParam skinParam, HColor backColor, Swimlane swimlane,
			String spot, UFont font) {
		super(stringBounder, skinParam, swimlane);
		this.spot = spot;
		this.backColor = backColor;
		this.fc = FontConfiguration.create(skinParam, FontParam.ACTIVITY, null);
		final Style style = getDefaultStyleDefinitionCircle().getMergedStyle(skinParam().getCurrentStyleBuilder());
		this.shadowing = style.getShadowing();

	}

	@Override
	protected void drawUInternal(UGraphic ug) {

		final HColor borderColor = SkinParamUtils.getColor(skinParam(), null, ColorParam.activityBorder);
		final HColor backColor = this.backColor == null
				? SkinParamUtils.getColor(skinParam(), null, ColorParam.activityBackground)
				: this.backColor;

		final UEllipse circle = UEllipse.build(SIZE, SIZE);
		circle.setDeltaShadow(shadowing);
		ug.apply(borderColor).apply(backColor.bg()).apply(getThickness()).draw(circle);

		ug.apply(fc.getColor()).apply(new UTranslate(SIZE / 2, SIZE / 2))
				.draw(new UCenteredCharacter(spot.charAt(0), fc.getFont()));

	}

	@Override
	public XDimension2D calculateDimension(StringBounder stringBounder) {
		return new XDimension2D(SIZE, SIZE);
	}

}