fontbutton.java

具有不同语法高亮的编辑器实例

/*
 * 08/10/2005
 *
 * FontButton.java - Button used by the Font editor/renderer.
 * 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.Font;
import javax.swing.UIManager;


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

	/**
	 * 
	 */
	private static final long serialVersionUID = -2880622977833156542L;

	private Font displayedFont;


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


	/**
	 * Constructor.
	 */
	public FontButton() {
	}


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


	/**
	 * Returns the font displayed by this button.
	 *
	 * @return The font displayed.
	 * @see #setFont
	 */
	public Font getFont() {
		return displayedFont;
	}


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


	/**
	 * Returns the text for the button.
	 *
	 * @param font The font the button is displaying.
	 * @return A text representation of the font.
	 */
	private static final String getFontString(Font font) {
		String returnVal = font.getFontName() + " " + font.getSize();
		switch (font.getStyle()) {
			case Font.PLAIN:
				returnVal += " Plain";
				break;
			case Font.BOLD:
				returnVal += " Bold";
				break;
			case Font.ITALIC:
				returnVal += " Italic";
				break;
			case Font.BOLD + Font.ITALIC:
				returnVal += " Bold Italic";
				break;
		}
		return returnVal;
	}


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


	/**
	 * Sets the font displayed by this font button.
	 *
	 * @param font The new font.
	 * @see #getFont
	 */
	public void setFont(final Font font) {
		if (!font.equals(displayedFont)) {
			displayedFont = font;
			setText(getFontString(displayedFont));
			float size = UIManager.getFont("Label.font").getSize2D();
			setFont(displayedFont.deriveFont(size));
		}
	}


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

}