我正在编写一个程序,该程序将我的文本区域与已经生成的数据一起打印出来。我得到它来计算打印整个 textarea 需要多少页,但不是先打印第 1 页,然后再打印第 2 页,而是先打印第 1 页,然后再打印第 1 页。我似乎无法让它发挥作用来挽救我的生命。我一直在浏览所有论坛和有关 oracle 的帮助,但一定有一些我遗漏的东西。如果您能如此友善并花一点时间看一下我的代码,我将不胜感激。谢谢。-加勒特
private void hardPrintActionPerformed(java.awt.event.ActionEvent evt)
{
int width = printOut.getWidth() ;
int height = printOut.getHeight();
System.out.println("width is "+ width);
System.out.println("Height is "+height);
String font = fontSize.getText();
int FontS = Integer.parseInt(font);
Font fonT = new Font("Monospaced", Font.PLAIN, 12);
printOut.setFont(new Font("Tahoma", Font.PLAIN, FontS));
PrinterJob pj = PrinterJob.getPrinterJob();
PageFormat pf = pj.defaultPage();
Book bk = new Book();
Paper paper = new Paper();
double margin = 18;
pj.setPageable(bk);
paper.setSize(612,792);
paper.setImageableArea(margin, margin
, paper.getWidth() -margin * 2
, paper.getHeight() - margin * 2);
int lines = printOut.getLineCount();
System.out.println("lines = "+lines);
pf.setPaper(paper);
int tall = (int) pf.getImageableHeight();
System.out.println("tall ="+tall);
System.out.println("orientation "+pf.getOrientation());
int pagenum =bk.getNumberOfPages();
System.out.println("pagenum = "+pagenum);
System.out.println("areah = "+height);
int numpages =1;
if (height >756) {
for (int i = 756; i < height;) {
numpages = numpages+1;
i= i +756;
}
}
System.out.println("numpages ="+numpages);
bk.append(new MyPrintable(), pf,numpages);
// pj.setPrintable(new MyPrintable(), pf);
if (pj.printDialog()) {
try {
printOut.setBounds(0, 0, printOut.getWidth(), printOut.getHeight());
pj.print();
} catch (PrinterException pp) {
System.out.println(pp);
}
}
}
/**
* @param args the command line arguments
*/
class MyPrintable implements Printable {
public int print(Graphics g, PageFormat pf, int pageIndex) {
//int pagenum =bk.getNumberOfPages();
int height = printOut.getHeight();
int numpages =1;
if (height >756) {
for (int i = 756; i < height;) {
numpages = numpages+1;
i= i +756;
}
}
if (pageIndex >3)
return NO_SUCH_PAGE;
else{
Graphics2D g2 = (Graphics2D) g;
g2.setFont(new Font("Monospaced", Font.PLAIN, 10));
printOut.setBounds(0, 0, printOut.getWidth(), printOut.getHeight());
// paper.getImageableWidth();
g2.translate(pf.getImageableX(), pf.getImageableY());
System.out.println("print " +pf.getImageableY());
Rectangle componentBounds = printOut.getBounds();
g2.translate(-componentBounds.x, -componentBounds.y);
g2.scale(1, 1);
boolean wasBuffered = printOut.isDoubleBuffered();
printOut.printAll(g2); //printOut is my text area.
printOut.setDoubleBuffered(wasBuffered);
return PAGE_EXISTS;
}
}
}