1    /* 
2     * Created by DocJava, Inc. 
3     * User: lyon 
4     * Date: Mar 2, 2003 
5     * Time: 12:30:51 PM 
6     */ 
7    package addBk.print; 
8     
9    import java.awt.*; 
10   import java.awt.print.PageFormat; 
11   import java.awt.print.Printable; 
12   import java.awt.print.PrinterException; 
13   import java.awt.print.PrinterJob; 
14   import java.io.RandomAccessFile; 
15    
16   public class PrintUtils implements Printable { 
17       private RandomAccessFile raf; 
18       private String fileName; 
19       private Font fnt = new Font("Helvetica", Font.PLAIN, 10); 
20       private int rememberedPageIndex = -1; 
21       private long rememberedFilePointer = -1; 
22       private boolean rememberedEOF = false; 
23    
24       public PrintUtils(String file) { 
25           fileName = file; 
26           try { 
27               // Open file 
28               raf = new RandomAccessFile(file, "r"); 
29           } catch (Exception e) { 
30               rememberedEOF = true; 
31           } 
32       } 
33    
34       public PrintUtils() { 
35           this(futils.Futil.getReadFileName("select a file to print")); 
36       } 
37    
38       public static void printFile() { 
39           PrinterJob job = PrinterJob.getPrinterJob(); 
40           // Specify the Printable is an instance of SimplePrint 
41           job.setPrintable(new PrintUtils()); 
42           // Put up the dialog box 
43           if (job.printDialog()) { 
44               // Print the job if the user didn't cancel printing 
45               try { 
46                   job.print(); 
47               } catch (Exception e) { /* handle exception */ 
48                   e.printStackTrace(); 
49               } 
50           } 
51           System.exit(0); 
52       } 
53    
54    
55       public int print(Graphics g, PageFormat pf, int pageIndex) 
56               throws PrinterException { 
57           try { 
58               // For catching IOException 
59               if (pageIndex != rememberedPageIndex) { 
60                   // First time we've visited this page 
61                   rememberedPageIndex = pageIndex; 
62                   // If encountered EOF on previous page, done 
63                   if (rememberedEOF) return Printable.NO_SUCH_PAGE; 
64                   // Save current position in input file 
65                   rememberedFilePointer = raf.getFilePointer(); 
66               } else 
67                   raf.seek(rememberedFilePointer); 
68               g.setColor(Color.black); 
69               g.setFont(fnt); 
70               int x = (int) pf.getImageableX() + 10; 
71               int y = (int) pf.getImageableY() + 12; 
72               // Title line 
73               g.drawString("File: " + fileName + ", page: " + 
74                       (pageIndex + 1), x, y); 
75               // Generate as many lines as will fit in imageable area 
76               y += 36; 
77               while (y + 12 < pf.getImageableY() + pf.getImageableHeight()) { 
78                   String line = raf.readLine(); 
79                   if (line == null) { 
80                       rememberedEOF = true; 
81                       break; 
82                   } 
83                   g.drawString(line, x, y); 
84                   y += 12; 
85               } 
86               return Printable.PAGE_EXISTS; 
87           } catch (Exception e) { 
88               return Printable.NO_SUCH_PAGE; 
89           } 
90       } 
91    
92   } 
93    
94