package com.test;
import java.awt.Component;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.attribute.HashAttributeSet;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.Copies;
import javax.print.attribute.standard.MediaPrintableArea;
import javax.print.attribute.standard.MediaSizeName;
import javax.print.attribute.standard.OrientationRequested;
import javax.print.attribute.standard.PrinterName;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
public class Te extends JFrame {
private PrintRequestAttributeSet attributes;
public Te() {
try {
attributes = new HashPrintRequestAttributeSet();
PrinterJob job = PrinterJob.getPrinterJob();
attributes.add(new Copies(1)); // 设置打印分数
attributes.add(OrientationRequested.PORTRAIT); // 设置打印方向
attributes.add(MediaSizeName.ISO_A6); // 设置打印纸装
HashAttributeSet hs = new HashAttributeSet();
hs.add(new PrinterName("zhushi", null));
PrintService[] pss = PrintServiceLookup.lookupPrintServices(null, hs);
job.setPrintService(pss[0]);
PrintPanel printTable = new PrintPanel();
int hei = printTable.getHeight2();
attributes.add(new MediaPrintableArea(0,0,58,hei,MediaPrintableArea.MM)); //设置打印纸装大小
job.setPrintable(printTable);
job.print(attributes);
} catch (Exception e) {
}
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println(1212);
Te te = new Te();
}
}
class TableCellTextAreaRenderer extends JTextArea implements TableCellRenderer {
public TableCellTextAreaRenderer() {
setLineWrap(true);
setWrapStyleWord(true);
}
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
// 计算当下行的最佳高度
int maxPreferredHeight = 0;
for (int i = 0; i < table.getColumnCount(); i++) {
setText("" + table.getValueAt(row, i));
setSize(table.getColumnModel().getColumn(column).getWidth(), 0);
maxPreferredHeight = Math.max(maxPreferredHeight,
getPreferredSize().height);
}
if (table.getRowHeight(row) != maxPreferredHeight) // 少了这行则处理器瞎忙
table.setRowHeight(row, maxPreferredHeight);
setText(value == null ? "" : value.toString());
System.err.println(value+" vvvvvvvvvvvvvv");
System.err.println(maxPreferredHeight+" sssssssssssssssssss");
/*hei += maxPreferredHeight;
System.out.println(hei);*/
return this;
}
// public static int hei =0;
// public int getHei(JTable table, Object value,
// boolean isSelected, boolean hasFocus, int row, int column) {
// // 计算当下行的最佳高度
// int maxPreferredHeight = 0;
// for (int i = 0; i < table.getColumnCount(); i++) {
// setText("" + table.getValueAt(row, i));
// setSize(table.getColumnModel().getColumn(column).getWidth(), 0);
// maxPreferredHeight = Math.max(maxPreferredHeight,
// getPreferredSize().height);
// }
// return hei += maxPreferredHeight;
// }
}
class PrintPanel extends JPanel implements Printable{
@Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex)
throws PrinterException {
if (pageIndex >= 1) return Printable.NO_SUCH_PAGE;
Graphics2D g2 = (Graphics2D) graphics;
g2.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
drawPage1(graphics);
return Printable.PAGE_EXISTS;
}
public void drawPage1(Graphics g2){
JTable table = new JTable(8,3);
TableColumn column=null;
table.setFont(new Font("Dialog ", 0, 12));
table.getColumnModel().getColumn(0).setMinWidth(100);
table.setModel(new javax.swing.table.DefaultTableModel(
getObject(),
new String[] {"","",""}
) {
boolean[] canEdit = new boolean[]
{true,true,true};
});
// table.setDefaultRenderer(Object.class, new TableCellTextAreaRenderer());
table.setSize(table.getPreferredSize());
table.setShowGrid (false);//是否显示网格线
table.setShowHorizontalLines (false);//是否显示水平的网格线
table.setShowVerticalLines (false);//是否显示垂直的网格线
table.paint(g2);
}
public Object[][] getObject() {
Object[][] os = new Object[13][3];
for (int i = 0; i < 2; i++) {
os[i][0] = "里单元格里单元格";
os[i][1] = "里单元格";
os[i][2] = "";
}
return os;
}
public int getHeight2() {
JTable table = new JTable(8,3);
TableColumn column=null;
table.setFont(new Font("Dialog ", 0, 12));
table.getColumnModel().getColumn(0).setMinWidth(100);
table.setModel(new javax.swing.table.DefaultTableModel(
getObject(),
new String[] {"","",""}
) {
boolean[] canEdit = new boolean[]
{true,true,true};
});
table.setDefaultRenderer(Object.class, new TableCellTextAreaRenderer());
table.setSize(table.getPreferredSize());
table.setShowGrid (false);//是否显示网格线
table.setShowHorizontalLines (false);//是否显示水平的网格线
table.setShowVerticalLines (false);//是否显示垂直的网格线
System.out.println(5*table.getRowCount()+"5*table.getRowCount()");
return 5*table.getRowCount();
}
}
我本机上装了一个PDF虚拟打印机。
以上是测试类的代码，请各位指点一二。
如何让打印的内容过长也全部打印出来。 不管我怎么调打印都不全。。
请各位指教！ 谢谢！！！
哦，了解了，Qq聊。
这主要是计算分页的问题。
这里写死了，所以总共就打印一页，多的内容就憋到页面外面去了。
[quote]if (pageIndex >= 1) return Printable.NO_SUCH_PAGE;[/quote]
这玩意貌似要根据每页的高度，每行文字的高度来计算出每页可以打印多少行，然后再在print方法里根据pageIndex画出当前页的文本内容。我改写了一下你的PrintPanel类，可以支持多页打印，做例子供参考一下吧，希望能帮的上忙，呵呵。
参考资料：http://download.oracle.com/javase/tutorial/2d/printing/set.html
[code="java"]class PrintPanel extends JPanel implements Printable {
private int[] pageBreaks; //每个分页的开始行号
private String[][] lineContents = null; //打印的文本内容
private int linesPerPage = 20; //每页的行数，默认20
private boolean inited = false; //分页属性是否已初始化
public PrintPanel() {
initLineContents();
}
@Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex)
throws PrinterException {
if(!inited) {
initPageProperties(graphics, pageFormat);
}
if (pageIndex > pageBreaks.length) {
return NO_SUCH_PAGE;
}
Graphics2D g2 = (Graphics2D) graphics;
g2.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
drawPage1(graphics, getLineContentsByPageIndex(pageIndex));
return Printable.PAGE_EXISTS;
}
public void drawPage1(Graphics g2, String[][] lines) {
JTable table = new JTable(8, 3);
TableColumn column = null;
table.setFont(new Font("Dialog", 0, 12));
table.getColumnModel().getColumn(0).setMinWidth(100);
table.setModel(new javax.swing.table.DefaultTableModel(lines,
new String[] { "", "", "" }) {
boolean[] canEdit = new boolean[] { true, true, true };
});
// table.setDefaultRenderer(Object.class, new
// TableCellTextAreaRenderer());
table.setSize(table.getPreferredSize());
table.setShowGrid(false);// 是否显示网格线
table.setShowHorizontalLines(false);// 是否显示水平的网格线
table.setShowVerticalLines(false);// 是否显示垂直的网格线
table.paint(g2);
}
public int getHeight2() {
JTable table = new JTable(8, 3);
TableColumn column = null;
table.setFont(new Font("Dialog ", 0, 12));
table.getColumnModel().getColumn(0).setMinWidth(100);
table.setModel(new javax.swing.table.DefaultTableModel(lineContents,
new String[] { "", "", "" }) {
boolean[] canEdit = new boolean[] { true, true, true };
});
table.setDefaultRenderer(Object.class, new TableCellTextAreaRenderer());
table.setSize(table.getPreferredSize());
table.setShowGrid(false);// 是否显示网格线
table.setShowHorizontalLines(false);// 是否显示水平的网格线
table.setShowVerticalLines(false);// 是否显示垂直的网格线
System.out.println(5 * table.getRowCount() + "5*table.getRowCount()");
return 5 * table.getRowCount();
}
//初始化打印内容
private void initLineContents() {
lineContents = new String[131][3];
for (int i = 0; i < 131; i++) {
lineContents[i][0] = i + "里单元格里单元格";
lineContents[i][1] = "里单元格";
lineContents[i][2] = "";
}
}
//初始化分页属性
private void initPageProperties(Graphics graphics, PageFormat pageFormat) {
//计算每行高度
Font font = new Font("Dialog", 0, 12);
FontMetrics metrics = graphics.getFontMetrics(font);
int lineHeight = metrics.getHeight();
//计算分页
linesPerPage = (int) (pageFormat.getImageableHeight() / lineHeight - 1);
int numBreaks = (lineContents.length - 1) / linesPerPage;
pageBreaks = new int[numBreaks];
for (int b = 0; b < numBreaks; b++) {
pageBreaks[b] = (b + 1) * linesPerPage;
}
inited = true;
}
//获取当前页的打印内容
private String[][] getLineContentsByPageIndex(int pageIndex) {
int start = (pageIndex == 0) ? 0 : pageBreaks[pageIndex - 1];
int end = (pageIndex == pageBreaks.length) ? lineContents.length
: pageBreaks[pageIndex];
String[][] res = new String[end - start][];
for (int i = 0, line = start; line < end; line++, i++) {
res[i] = lineContents[line];
}
return res;
}
}[/code]