barcodesimplesample.java

遗传算法改进神经网络源程序 该小程序可以添加条形码功能到你的网页或者applet上,这个applet把大写字母和数字转换为标准的条形码。

package barcode.awt.sample;

// BarcodeSimpleSample.java 
//
// Bokai Barcode/Java v4.0 Sample Program
// Copyright (c) 2005 Bokai Corporation
// http://www.bokai.com

// To run this sample application,
// - include "." and "easybar.jar" in your CLASSPATH
// - run: java BarcodeSimpleSample

import java.awt.Frame;
import java.awt.Graphics;
import java.awt.PrintJob;

import com.bokai.barcodes.Barcode;
import com.bokai.barcodes.BarcodeExtraTextPosition;
import com.bokai.barcodes.BarcodeOrientation;
import com.bokai.barcodes.BarcodeTextPosition;
import com.bokai.barcodes.CheckCharShowMode;
import com.bokai.drawing.SimpleColor;
import com.bokai.drawing.SimpleFont;

public class BarcodeSimpleSample extends Frame {

	private static final long serialVersionUID = -7845387022053359195L;

	private Barcode _barcode;

	private void drawBarcode(Graphics g, int x, int y) {
		int w, h;
		int orient = _barcode.getOrientation();
		if (orient == BarcodeOrientation.leftFacing
				|| orient == BarcodeOrientation.rightFacing) {
			w = 50;
			h = 1;
		} else {
			w = 1;
			h = 50;
		}

		try {
			java.awt.Image img = _barcode.makeSimpleImage(w, h, true, 1, null);

			g.drawImage(img, 50, 100, null);
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}

	public void paint(Graphics g) {
		drawBarcode(g, 10, 10);
	}

	@SuppressWarnings("unused")
	private void customizeBarcode() {
		// here you can set other properties on the barcode object _barcode,
		// which
		// have no user interface elements in this sample app, e.g.,

		_barcode.setOrientation(BarcodeOrientation.bottomFacing);
		// also: BarcodeOrientation.topFacing, BarcodeOrientation.leftFacing,
		// BarcodeOrientation.rightFacing
		_barcode.setTextAlign(BarcodeTextPosition.below); // also: above,
															// hidden
		_barcode.setExtraTextPosition(BarcodeExtraTextPosition.above); // also:
																		// below
		_barcode.setCheckCharShowMode(CheckCharShowMode.auto); // also: hide,
																// show
		_barcode.setStretchText(true); // also: false
		_barcode.setShowCode39StartStop(true); // also: false
		_barcode.setForeSimpleColor(new SimpleColor(0, 0, 0));
		_barcode
				.setSimpleFont(new SimpleFont("SansSerif", SimpleFont.PLAIN, 11));
		// ...
	}

	public void doPrint() {
		PrintJob printJob = getToolkit().getPrintJob(this, "Print Barcode",
				null);
		if (printJob != null) {
			Graphics g = printJob.getGraphics();
			if (g != null) {
				drawBarcode(g, 50, 50);
				g.dispose();
			}
			printJob.end();
		}
	}

	public BarcodeSimpleSample(String title) throws Exception {
		super(title);

		try {
			_barcode = new Barcode(Barcode.BCT_CODE39);
		} catch (Exception e) {
			e.printStackTrace();
		}

		_barcode.setData("12345678");

		// optionally customize the barcode
		// customizeBarcode();

		addMouseListener(new java.awt.event.MouseAdapter() {
			public void mouseClicked(java.awt.event.MouseEvent e) {
				doPrint();
			}
		});

		setSize(480, 380);
	}

	@SuppressWarnings("deprecation")
	public static void main(String args[]) throws Exception {
		Frame f = new BarcodeSimpleSample(
				"Bokai Barcode/Java V4.0 Simple Sample");
		f.show();
		f.addWindowListener(new java.awt.event.WindowAdapter() {
			public void windowClosing(java.awt.event.WindowEvent e) {
				System.exit(0);
			}
		});
	}
}