org.gephi.ui.components.gradientslider.PaintUtils Maven / Gradle / Ivy
/*
Copyright 2008-2010 Gephi
Authors : Mathieu Bastian
Website : http://www.gephi.org
This file is part of Gephi.
DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
Copyright 2011 Gephi Consortium. All rights reserved.
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General Public License Version 3 only ("GPL") or the Common
Development and Distribution License("CDDL") (collectively, the
"License"). You may not use this file except in compliance with the
License. You can obtain a copy of the License at
http://gephi.org/about/legal/license-notice/
or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the
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License Header, with the fields enclosed by brackets [] replaced by
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Contributor(s):
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*/
package org.gephi.ui.components.gradientslider;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.Shape;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
// Author Jeremy Wood
public class PaintUtils {
/**
* Four shades of white, each with increasing opacity.
*/
public final static Color[] whites = new Color[] {
new Color(255, 255, 255, 50),
new Color(255, 255, 255, 100),
new Color(255, 255, 255, 150)
};
/**
* Four shades of black, each with increasing opacity.
*/
public final static Color[] blacks = new Color[] {
new Color(0, 0, 0, 50),
new Color(0, 0, 0, 100),
new Color(0, 0, 0, 150)
};
/**
* @return the color used to indicate when a component has
* focus. By default this uses the color (64,113,167), but you can
* override this by calling:
*
UIManager.put("focusRing",customColor);
*/
public static Color getFocusRingColor() {
Object obj = UIManager.getColor("focusRing");
if (obj instanceof Color) {
return (Color) obj;
}
return new Color(64, 113, 167);
}
/**
* Paints 3 different strokes around a shape to indicate focus.
* The widest stroke is the most transparent, so this achieves a nice
* "glow" effect.
* The catch is that you have to render this underneath the shape,
* and the shape should be filled completely.
*
* @param g the graphics to paint to
* @param shape the shape to outline
* @param biggestStroke the widest stroke to use.
*/
public static void paintFocus(Graphics2D g, Shape shape, int biggestStroke) {
Color focusColor = getFocusRingColor();
Color[] focusArray = new Color[] {
new Color(focusColor.getRed(), focusColor.getGreen(), focusColor.getBlue(), 255),
new Color(focusColor.getRed(), focusColor.getGreen(), focusColor.getBlue(), 170),
new Color(focusColor.getRed(), focusColor.getGreen(), focusColor.getBlue(), 110)
};
g.setStroke(new BasicStroke(biggestStroke));
g.setColor(focusArray[2]);
g.draw(shape);
g.setStroke(new BasicStroke(biggestStroke - 1));
g.setColor(focusArray[1]);
g.draw(shape);
g.setStroke(new BasicStroke(biggestStroke - 2));
g.setColor(focusArray[0]);
g.draw(shape);
g.setStroke(new BasicStroke(1));
}
/**
* Uses translucent shades of white and black to draw highlights
* and shadows around a rectangle, and then frames the rectangle
* with a shade of gray (120).
*
This should be called to add a finishing touch on top of
* existing graphics.
*
* @param g the graphics to paint to.
* @param r the rectangle to paint.
*/
public static void drawBevel(Graphics g, Rectangle r) {
drawColors(blacks, g, r.x, r.y + r.height, r.x + r.width, r.y + r.height, SwingConstants.SOUTH);
drawColors(blacks, g, r.x + r.width, r.y, r.x + r.width, r.y + r.height, SwingConstants.EAST);
drawColors(whites, g, r.x, r.y, r.x + r.width, r.y, SwingConstants.NORTH);
drawColors(whites, g, r.x, r.y, r.x, r.y + r.height, SwingConstants.WEST);
g.setColor(new Color(120, 120, 120));
g.drawRect(r.x, r.y, r.width, r.height);
}
private static void drawColors(Color[] colors, Graphics g, int x1, int y1, int x2, int y2, int direction) {
for (int a = 0; a < colors.length; a++) {
g.setColor(colors[colors.length - a - 1]);
if (direction == SwingConstants.SOUTH) {
g.drawLine(x1, y1 - a, x2, y2 - a);
} else if (direction == SwingConstants.NORTH) {
g.drawLine(x1, y1 + a, x2, y2 + a);
} else if (direction == SwingConstants.EAST) {
g.drawLine(x1 - a, y1, x2 - a, y2);
} else if (direction == SwingConstants.WEST) {
g.drawLine(x1 + a, y1, x2 + a, y2);
}
}
}
}