com.formdev.flatlaf.icons.FlatTreeOpenIcon Maven / Gradle / Ivy

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There is a newer version: 3.5.2

/*
 * Copyright 2019 FormDev Software GmbH
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.formdev.flatlaf.icons;

import java.awt.BasicStroke;
import java.awt.Component;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.Path2D;
import javax.swing.UIManager;
import com.formdev.flatlaf.ui.FlatUIUtils;

/**
 * "open" icon for {@link javax.swing.JTree} used by {@link javax.swing.tree.DefaultTreeCellRenderer}.
 *
 * @uiDefault Tree.icon.openColor			Color
 *
 * @author Karl Tauber
 */
public class FlatTreeOpenIcon
	extends FlatAbstractIcon
{
	private Path2D path;

	public FlatTreeOpenIcon() {
		super( 16, 16, UIManager.getColor( "Tree.icon.openColor" ) );
	}

	@Override
	protected void paintIcon( Component c, Graphics2D g ) {
		FlatTreeCollapsedIcon.setStyleColorFromTreeUI( c, g, ui -> ui.iconOpenColor );

		/*
			
		*/

		g.setRenderingHint( RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE );
		g.setStroke( new BasicStroke( 1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER ) );

		if( path == null ) {
			double arc = 1.5;
			double arc2 = 0.5;
			path = FlatUIUtils.createPath( false,
				// bottom-left of opened part
				2,13.5,
				// top-left of opened part
				FlatUIUtils.ROUNDED, 4.5,7.5, arc,
				// top-right of opened part
				FlatUIUtils.ROUNDED, 15.5,7.5, arc2,

				// bottom-right
				FlatUIUtils.ROUNDED, 13,13.5, arc,
				// bottom-left
				1.5+arc,13.5,   FlatUIUtils.QUAD_TO, 1.5,13.5,  1.5,13.5-arc,
				// top-left
				1.5,2.5+arc,    FlatUIUtils.QUAD_TO, 1.5,2.5,   1.5+arc,2.5,
				// top-mid-left
				6.5-arc2,2.5,   FlatUIUtils.QUAD_TO, 6.5,2.5,   6.5+arc2,2.5+arc2,
				// top-mid-right
				8.5,4.5,
				// top-right
				13.5-arc,4.5,   FlatUIUtils.QUAD_TO, 13.5,4.5,  13.5,4.5+arc,
				13.5,6.5 );
		}
		g.draw( path );
	}
}