colorbutton.java

具有不同语法高亮的编辑器实例

/*
 * 08/10/2005
 *
 * ColorButton.java - Button used by property sheets to display a color.
 * Copyright (C) 2005 Robert Futrell
 * [e-mail]
 * www.website.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package org.fife.ui.propertysheet;

import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import javax.swing.Icon;


/**
 * A button that displays a color.  This is used by property sheets to display
 * a color.
 *
 * @author Robert Futrell
 * @version 1.0
 */
public class ColorButton extends PropertySheetButton {

	/**
	 * 
	 */
	private static final long serialVersionUID = -8772214766920823412L;

	private ColorIcon colorIcon;


/*****************************************************************************/


	/**
	 * Constructor.
	 */
	public ColorButton() {
		colorIcon = new ColorIcon(Color.RED, 10,10);
		setIcon(colorIcon);
	}


/*****************************************************************************/


	/**
	 * Returns the color displayed by this button.
	 *
	 * @return The color displayed.
	 * @see #setColor
	 */
	public Color getColor() {
		return colorIcon.getColor();
	}


/*****************************************************************************/


	/**
	 * Returns the text for the button.
	 *
	 * @param c The color the button is displaying.
	 * @return A text representation of the color.
	 */
	private static final String getColorString(Color c) {
		return "RGB: (" + c.getRed() + "," + c.getGreen() + "," +
				c.getBlue() + ")";
	}


/*****************************************************************************/


	/**
	 * Sets the color used by this color button.
	 *
	 * @param color The new color.
	 * @see #getColor
	 */
	public void setColor(Color color) {
		if (!color.equals(colorIcon.getColor())) {
			colorIcon.setColor(color);
			setText(getColorString(color));
		}
	}


/*****************************************************************************/
/************************ INNER CLASSES **************************************/
/*****************************************************************************/


	/**
	 * An icon that displays a color.
	 */
	/*
	 * FIXME:  Pull me out into my own class, and use me in RColorButtons.
	 */
	public static class ColorIcon implements Icon {

		public int width;
		public int height;
		private Color color;

		public ColorIcon(Color color, int width, int height) {
			this.width = width;
			this.height = height;
			setColor(color);
		}

		public Color getColor() {
			return color;
		}

		public int getIconHeight() {
			return height;
		}

		public int getIconWidth() {
			return width;
		}

		public void setColor(Color color) {
			this.color = color;
		}

		public void paintIcon(Component c, Graphics g, int x, int y) {
			g.setColor(color);
			g.fillRect(x,y, width,height);
		}

	}


}