www.pudn.com > jworkbook-0.3.0.zip > GeneralStyleModifier.java

/* ================================================= 
 * JWorkbook : data export from Java to spreadsheets 
 * ================================================= 
 * 
 * Project Info:  http://www.jfree.org/jworkbook/index.html; 
 * Project Lead:  David Gilbert (david.gilbert@object-refinery.com); 
 * 
 * (C) Copyright 2001-2003, by Object Refinery Limited. 
 * 
 * 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., 59 Temple Place, Suite 330, 
 * Boston, MA 02111-1307, USA. 
 * 
 * ------------------------- 
 * GeneralStyleModifier.java 
 * ------------------------- 
 * (C) Copyright 2001, 2003, by Object Refinery Limited. 
 * 
 * Original Author:  David Gilbert (for Object Refinery Limited); 
 * Contributor(s):   -; 
 * 
 * $Id$ 
 * 
 * Changes: 
 * -------- 
 * 05-Nov-2001 : Version 1 (DG); 
 * 07-Jul-2003 : Changed GPL --> LGPL, changed package name, updated company name (DG); 
 * 
 */ 
 
package org.jfree.workbook; 
 
/** 
 * A general style modifier that can change a variety of style settings. 
 */ 
public class GeneralStyleModifier implements StyleModifier { 
 
    /** Change the horizontal alignment (yes/no). */ 
    protected boolean modifyHorizontalAlignment; 
 
    /** The new horizontal alignment, if required. */ 
    protected int horizontalAlignment; 
 
    /** Change the vertical alignment (yes/no). */ 
    protected boolean modifyVerticalAlignment; 
 
    /** The new vertical alignment, if required. */ 
    protected int verticalAlignment; 
 
    /** Change the wrap text setting (yes/no). */ 
    protected boolean modifyWrapText; 
 
    /** The new wrap text setting, if required. */ 
    protected boolean wrapText; 
 
    /** 
     * Standard constructor. 
     *  
     * @param modifyHorizontalAlignment  change the horizontal alignment (yes/no). 
     * @param horizontalAlignment  the new horizontal alignment. 
     * @param modifyVerticalAlignment  change the vertical alignment (yes/no). 
     * @param verticalAlignment  the new vertical alignment. 
     */ 
    public GeneralStyleModifier(boolean modifyHorizontalAlignment, int horizontalAlignment, 
                                boolean modifyVerticalAlignment, int verticalAlignment) { 
 
        this.modifyHorizontalAlignment = modifyHorizontalAlignment; 
        this.horizontalAlignment = horizontalAlignment; 
        this.modifyVerticalAlignment = modifyVerticalAlignment; 
        this.verticalAlignment = verticalAlignment; 
 
        this.modifyWrapText = false; 
        this.wrapText = false; 
 
    } 
 
    /** 
     * Standard constructor. 
     *  
     * @param modifyWrapText  change the wrap text setting (yes/no). 
     * @param wrapText  the new wrap text setting. 
     */ 
    public GeneralStyleModifier(boolean modifyWrapText, boolean wrapText) { 
        this.modifyWrapText = modifyWrapText; 
        this.wrapText = wrapText; 
    } 
 
    /** 
     * Returns a new style based on the supplied style, but modified in some way. 
     *  
     * @param style  the style to be changed. 
     *  
     * @return The modified style. 
     */ 
    public Style getModifiedStyle(Style style) { 
 
        int newHorizontalAlignment; 
        int newVerticalAlignment; 
        boolean newWrapText; 
 
        if (modifyHorizontalAlignment) { 
            newHorizontalAlignment = horizontalAlignment; 
        } 
        else { 
            newHorizontalAlignment = style.getHorizontalAlignment(); 
        } 
 
        if (modifyVerticalAlignment) { 
            newVerticalAlignment = verticalAlignment; 
        } 
        else { 
            newVerticalAlignment = style.getVerticalAlignment(); 
        } 
 
        if (modifyWrapText) { 
            newWrapText = wrapText; 
        } 
        else { 
            newWrapText = style.isWrapText(); 
        } 
 
        return new Style(style.getFont(), style.getBorder(), 
                         newHorizontalAlignment, newVerticalAlignment, 
                         newWrapText, style.getOrientation(), style.getShade(),  
                         style.getCellIndent(), 
                         style.getForegroundColor(), style.getBackgroundColor(), 
                         style.getPatternColor(), style.getFormat()); 
 
    } 
 
}