barcodereportelement.java

iReport-0.4.1-src是iReport的源代码,iReport是一个开源的报表项目,可以生成PDF等格式报表

/*
 * BarcodeReportElement.java
 *
 *  iReport  --  Visual designer for generating JasperReports Documents
 *  Copyright (C) 2002  Giulio Toffoli [e-mail]
 *
 *  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
 *  (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *  Giulio Toffoli
 *  Via T.Aspetti, 233
 *  35100 Padova ITALY
 *  [e-mail]
 *
 * Created on 15. April 2004, 13:21 by Heiko Wenzel
 */

package it.businesslogic.ireport;
import java.awt.*;
import it.businesslogic.ireport.util.*;

import java.util.*;

/**
 *
 * @author  Administrator
 */
public class BarcodeReportElement extends it.businesslogic.ireport.ImageReportElement {

    private String title = "Sample barcode";
	private boolean legend = false;
	private boolean showText = false;
	private String text = "\"0815\"";
	private int type = 13;
	private boolean checkSum = false;
	private String lastError = null;
        private static java.awt.Image barcodeError = null;
	
	public BarcodeReportElement(int x, int y, int width, int height)  {
        // do not allow barcodes with a width or height == 0
		super(x, y, ( width == 0 ? 1 : Math.abs(width)) , (height == 0 ? 1 : Math.abs(height)) );
        
                if (barcodeError == null)
                {
                    barcodeError = Misc.loadImageFromResources("it/businesslogic/ireport/icons/barcodeerror.png");
                }
                
		setGraphicElementPen("Thin");
		setBarCodeImg(type, text, showText, checkSum);
		setImageClass("java.awt.Image");
		setScaleImage("RetainShape");
		setGraphicElementPen("None");
		setHyperlinkType("None");
		setAnchorNameExpression("");
		setImgDef(null);

        setKey("barcode");
	}
	
	public void setBarCodeImg(int type, String text, boolean showText, boolean checkSum){
		
		StringBuffer bcCall = new StringBuffer("it.businesslogic.ireport.barcode.BcImage.getBarcodeImage(");
		//boolean isFormula = text.trim().startsWith("$");
		bcCall.append(type);
		
		//if (isFormula) {
			bcCall.append(",");
			bcCall.append(text);
			bcCall.append(",");
		//} else {
		//	bcCall.append(",\"");
		//	bcCall.append(text);
		//	bcCall.append("\",");
		//}
		
		bcCall.append(showText);
		bcCall.append(",");
		bcCall.append(checkSum);
		bcCall.append(")");
		
		super.setImageExpression(bcCall.toString());

		try{
			
			setImg(it.businesslogic.ireport.barcode.BcImage.getBarcodeImage(type, text, showText, checkSum));
			lastError = null;
			
		} catch (RuntimeException e) {
			
			//reset image
			setImg(barcodeError);
			
			//save last error message
			lastError = e.getMessage(); 
		}
	}
		
	public void setImageExpression(java.lang.String imageExpression) {
		super.setImageExpression(imageExpression);
		
		String iE = imageExpression.substring(imageExpression.indexOf("(") + 1, imageExpression.indexOf(")"));
		String[] params = iE.split(",");
		type = new Integer(params[0]).intValue();
		
		//if (params[1].startsWith("$")) {
            text = params[1];
        //} else {
        //    text = params[1].substring(1, params[1].length() - 1);
        //}
		
		showText = new Boolean(params[2]).booleanValue();
		checkSum = new Boolean(params[3]).booleanValue();

		update();
	}
	
	public void setShowText(boolean showText) {
		this.showText = showText;
		update();
	}
	
	public boolean isShowText() {
		return this.showText;
	}
	
	public void update() {
		
		setBarCodeImg(type, text, showText, checkSum);
		
		/*
                 boolean isFormula = text.trim().startsWith("$");
                
		if (! isFormula) {
			this.width = it.businesslogic.ireport.barcode.BcImage.getBarcode().getMinimumSize().width;
			this.height = it.businesslogic.ireport.barcode.BcImage.getBarcode().getMinimumSize().height;
		}
		*/
		this.updateBounds();
	}
	
	public ReportElement cloneMe() {
		BarcodeReportElement newReportElement = new BarcodeReportElement(position.x, position.y, width, height);
		copyBaseReportElement(newReportElement, this);
		return newReportElement;
	}
	
	public java.lang.String getTitle() {
		return title;
	}
	
	public void setTitle(java.lang.String title) {
		this.title = title;
		this.setImg(null);
	}
	
	public String getText() {
		return this.text;
	}
	
	public void setText(String text) {
		this.text = text;
		update();
	}
	
	public int getType() {
		return this.type;
	}
	
	public void setType(int type) {
		this.type = type;
	}
	
	public boolean isCheckSum() {
		return this.checkSum;
	}
	
	public void setCheckSum(boolean checkSum) {
		this.checkSum = checkSum;
		update();
	}
	
	/**
	 * Last error message.
	 * @return Returns null if ok.
	 */
	public String getLastError() {
		return lastError;
	}

}