package com.topsun.posclient.sales.ui.menu;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.font.FontRenderContext;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import javax.print.Doc;
import javax.print.DocFlavor;
import javax.print.DocPrintJob;
import javax.print.PrintException;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.SimpleDoc;
import javax.print.attribute.DocAttributeSet;
import javax.print.attribute.HashDocAttributeSet;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
public class TicketTest extends JFrame implements ActionListener {
private static final long serialVersionUID = 1L;
int PAGES = 1;
private String printStr = null;
private int printFlag = -1;
public JFrame mainFrame = new JFrame();
public JTextArea area = null;
private JButton print = new JButton();
private JScrollPane scrollPane;
private JPanel btnPanel = new JPanel();
public TicketTest() {
Container contentPane = mainFrame.getContentPane();
mainFrame.setSize(new Dimension(400, 300));
mainFrame.setTitle("Print example ");
area = new JTextArea(30, 30);
String str = getStr();
area.setText(str);
scrollPane = new JScrollPane(area);
print = new JButton("Print");
print.addActionListener(this);
btnPanel.add(print);
contentPane.add(btnPanel, BorderLayout.SOUTH);
contentPane.add(area, BorderLayout.CENTER);
mainFrame.pack();
mainFrame.show();
}
public String getStr() {
StringBuffer sb = new StringBuffer();
sb.append("欢迎下次光临");
sb.append("\r\n--------------------------------\r\n");
sb.append("日期:" + new Date());
sb.append("\r\n商品名称 数量 单价 ￥小计");
sb.append("\r\n--------------------------------\r\n");
return sb.toString();
}
public int print(Graphics g, PageFormat pf, int page)
throws PrinterException {
Graphics2D g2 = (Graphics2D) g;
System.out.print("a");
g2.setPaint(Color.red); // 设置打印颜色为黑色
if (page >= PAGES) // 当打印页号大于需要打印的总页数时，打印工作结束
return Printable.NO_SUCH_PAGE;
g2.translate(pf.getImageableX(), pf.getImageableY());// 转换坐标，确定打印边界
drawCurrentPageText(g2, pf, page); // 打印当前页文本
return Printable.PAGE_EXISTS; // 存在打印页时，继续打印工作
// return 1 ;
}
// 获取当前页的待打印文本内容
private void drawCurrentPageText(Graphics2D g2, PageFormat pf, int page) {
String s = getDrawText(printStr)[page];// 获取当前页的待打印文本内容
FontRenderContext context = g2.getFontRenderContext();// 获取默认字体及相应的尺寸
Font f = area.getFont();
String drawText;
float ascent = 16; // 给定字符点阵
int k, i = f.getSize(), lines = 0;
while (s.length() > 0 && lines < 30) // 每页限定在54行以内
{
k = s.indexOf('\n'); // 获取每一个回车符的位置
if (k != -1) // 存在回车符
{
lines += 1; // 计算行数
drawText = s.substring(0, k); // 获取每一行文本
g2.drawString(drawText, 0, ascent); // 具体打印每一行文本，同时走纸移位
if (s.substring(k + 1).length() > 0) {
s = s.substring(k + 1); // 截取尚未打印的文本
ascent += i;
}
} else // 不存在回车符
{
lines += 1; // 计算行数
drawText = s; // 获取每一行文本
g2.drawString(drawText, 0, ascent); // 具体打印每一行文本，同时走纸移位
s = ""; // 文本已结束
}
}
}
/* 将打印目标文本按页存放为字符串数组 */
public String[] getDrawText(String s) {
String[] drawText = new String[PAGES];// 根据页数初始化数组
for (int i = 0; i < PAGES; i++)
drawText[i] = ""; // 数组元素初始化为空字符串
int k, suffix = 0, lines = 0;
while (s.length() > 0) {
if (lines < 30) // 不够一页时
{
k = s.indexOf('\n');
if (k != -1) // 存在回车符
{
lines += 1; // 行数累加
// 计算该页的具体文本内容，存放到相应下标的数组元素
drawText[suffix] = drawText[suffix] + s.substring(0, k + 1);
if (s.substring(k + 1).length() > 0)
s = s.substring(k + 1);
} else {
lines += 1; // 行数累加
drawText[suffix] = drawText[suffix] + s; // 将文本内容存放到相应的数组元素
s = "";
}
} else// 已满一页时
{
lines = 0; // 行数统计清零
suffix++; // 数组下标加1
}
}
return drawText;
}
// 计算需要打印的总页数
public int getPagesCount(String curStr) {
int page = 0;
int position, count = 0;
String str = curStr;
System.out.println("1");
while (str.length() > 0) // 文本尚未计算完毕
{
System.out.println("2");
position = str.indexOf('\n'); // 计算回车符的位置
count += 1; // 统计行数
if (position != -1)
str = str.substring(position + 1); // 截取尚未计算的文本
else
str = ""; // 文本已计算完毕
}
if (count > 0)
page = count / 54 + 1; // 以总行数除以54获取总页数
System.out.print(page + "page");
return page; // 返回需打印的总页数
}
public void actionPerformed(ActionEvent evt) {
printText2Action();
}
private void printTextAction()
{
printStr = area.getText().trim(); //获取需要打印的目标文本
if (printStr != null && printStr.length() > 0) //当打印内容不为空时
{
PAGES = getPagesCount(printStr); //获取打印总页数
PrinterJob myPrtJob = PrinterJob.getPrinterJob(); //获取默认打印作业
PageFormat pageFormat = myPrtJob.defaultPage(); //获取默认打印页面格式
myPrtJob.setPrintable((Printable) this, pageFormat); //设置打印工作
if (myPrtJob.printDialog()) //显示打印对话框
{
try
{
myPrtJob.print(); //进行每一页的具体打印操作
}
catch(PrinterException pe)
{
pe.printStackTrace();
}
}
}
else
{
//如果打印内容为空时，提示用户打印将取消
JOptionPane.showConfirmDialog(null,
"Sorry, Printer Job is Empty, Print Cancelled!", "Empty",
JOptionPane.DEFAULT_OPTION, JOptionPane.WARNING_MESSAGE);
}
}
// 以jdk1.4新版本提供的API实现打印动作按钮监听，并完成具体的打印操作
private void printText2Action() {
printFlag = 0; // 打印标志清零
printStr = area.getText().trim();// 获取需要打印的目标文本
System.out.println("the content are ::: ");
System.out.println(printStr);
if (printStr != null && printStr.length() > 0) //当打印内容不为空时
{
PAGES = getPagesCount(printStr); //获取打印总页数
//指定打印输出格式
DocFlavor flavor = DocFlavor.SERVICE_FORMATTED.PRINTABLE;
//定位默认的打印服务
PrintService printService = PrintServiceLookup.lookupDefaultPrintService();
System.out.println("11"+printService+"----------");
//创建打印作业
DocPrintJob job = printService.createPrintJob();
//设置打印属性
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
DocAttributeSet das = new HashDocAttributeSet();
//指定打印内容
Doc doc = new SimpleDoc(this, flavor, das);
//不显示打印对话框，直接进行打印工作
try {
job.print(doc, pras); // 进行每一页的具体打印操作
} catch (PrintException pe) {
pe.printStackTrace();
}
} else {
JOptionPane
.showConfirmDialog(
null,
"Sorry, Printer Job is Empty, Print Cancelled! ",
"Empty ", JOptionPane.DEFAULT_OPTION,
JOptionPane.WARNING_MESSAGE);
}
}
// test
public static void main(String[] args) throws UnsupportedEncodingException {
String str = "鍖椾含甯傛湞闃冲尯鐭充經钀ュ簵";
// str.getBytes("GBK");
String newStr = new String(str.getBytes("GBK"),"UTF-8");
System.err.println(newStr);
}
}