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/**
 *        (c) 2007-2010 IKOffice GmbH
 *
 *        http://www.ikoffice.de
 */
package xworker.swt.xwidgets;

import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Display;

/**
 * FontsUtils
 * 
 * @author       junhuang   [email protected]
 * @version      1.0
 */
public class FontsUtils {
	
	private static final int MIN_HEIGHT = 12;
    
    /**
     * Returns the Height of Default Fonts.
     */
    public static int getFontHeight() {
        int height = MIN_HEIGHT;
        GC gc = new GC(Display.getCurrent());
        height = gc.getFontMetrics().getHeight();
        gc.dispose();
        return height;
    }
    
    /**
     * Returns the string of the spaces.
     */
    public static String getSpaceByWidth(int width) {
        GC gc = new GC(Display.getCurrent());
        int spaceWidth = gc.getAdvanceWidth(' ');
        gc.dispose();
        int spacecount = width / spaceWidth;
        return spaces(spacecount);
    }
    
    /**
     * Returns the given number of spaces.
     */
    public static String spaces(int count) {
        StringBuilder b = new StringBuilder();
        while( count-- > 0 ) {
            b.append(" ");
        }
        return b.toString();
    }

}