/*
* $Id: ShapeUtils.java 3100 2008-10-14 22:33:10Z rah003 $
*
* Copyright 2006 Sun Microsystems, Inc., 4150 Network Circle,
* Santa Clara, California 95054, U.S.A. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.hdesktop.swingx.util;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Polygon;
import java.awt.Shape;
import java.awt.font.GlyphVector;
import java.awt.geom.AffineTransform;
import java.awt.geom.Ellipse2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
/**
*
* @author joshy
*/
public final class ShapeUtils {
/** Creates a new instance of ShapeUtils */
private ShapeUtils() { }
public static Shape generatePolygon(int sides, int outsideRadius, boolean normalize) {
return generatePolygon(sides, outsideRadius, 0, normalize);
}
public static Shape generatePolygon(int sides, int outsideRadius, int insideRadius, boolean normalize) {
Shape shape = generatePolygon(sides,outsideRadius,insideRadius);
if(normalize) {
Rectangle2D bounds = shape.getBounds2D();
GeneralPath path = new GeneralPath(shape);
shape = path.createTransformedShape(
AffineTransform.getTranslateInstance(-bounds.getX(), -bounds.getY()));
}
return shape;
}
public static Shape generatePolygon(int sides, int outsideRadius, int insideRadius) {
if(sides < 3) {
return new Ellipse2D.Float(0,0,10,10);
}
AffineTransform trans = new AffineTransform();
Polygon poly = new Polygon();
for(int i=0; i<sides; i++) {
trans.rotate(Math.PI*2/(float)sides/2);
Point2D out = trans.transform(new Point2D.Float(0,outsideRadius),null);
poly.addPoint((int)out.getX(), (int)out.getY());
trans.rotate(Math.PI*2/(float)sides/2);
if(insideRadius > 0) {
Point2D in = trans.transform(new Point2D.Float(0,insideRadius),null);
poly.addPoint((int)in.getX(), (int)in.getY());
}
}
return poly;
}
public static Shape generateShapeFromText(Font font, char ch) {
return generateShapeFromText(font, String.valueOf(ch));
}
public static Shape generateShapeFromText(Font font, String string) {
BufferedImage img = new BufferedImage(100,100,BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = img.createGraphics();
try {
GlyphVector vect = font.createGlyphVector(g2.getFontRenderContext(), string);
Shape shape = vect.getOutline(0f,(float)-vect.getVisualBounds().getY());
return shape;
} finally {
g2.dispose();
}
}
}