From 33613a85afc4b1481367fbe92a17ee59c240250b Mon Sep 17 00:00:00 2001
From: Sven Eisenhauer <sven@sven-eisenhauer.net>
Date: Fri, 10 Nov 2023 15:11:48 +0100
Subject: add new repo

---
 .../hjp5/examples/SimpleFilePrinter.java           | 124 +++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 Master/Reference Architectures and Patterns/hjp5/examples/SimpleFilePrinter.java

(limited to 'Master/Reference Architectures and Patterns/hjp5/examples/SimpleFilePrinter.java')

diff --git a/Master/Reference Architectures and Patterns/hjp5/examples/SimpleFilePrinter.java b/Master/Reference Architectures and Patterns/hjp5/examples/SimpleFilePrinter.java
new file mode 100644
index 0000000..043fa38
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/hjp5/examples/SimpleFilePrinter.java	
@@ -0,0 +1,124 @@
+/* SimpleFilePrinter.java */
+
+import java.awt.*;
+import java.awt.print.*;
+import java.io.*;
+
+public class SimpleFilePrinter
+implements Printable
+{
+  //---Konstanten--------------------------------------
+  private static final int RESMUL = 4;
+
+  //---Membervariablen---------------------------------
+  private PrinterJob       pjob;
+  private PageFormat       pageformat;
+  private FilePrintHelper  fph;
+  private String           fname;
+  private RandomAccessFile in;
+
+  //---Konstruktoren-----------------------------------
+  public SimpleFilePrinter(String fname)
+  {
+    this.pjob  = PrinterJob.getPrinterJob();
+    this.fname = fname;
+  }
+
+  //---Öffentliche Methoden----------------------------
+  public boolean setupPageFormat()
+  {
+    PageFormat defaultPF = pjob.defaultPage();
+    this.pageformat = pjob.pageDialog(defaultPF);
+    pjob.setPrintable(this, this.pageformat);
+    return (this.pageformat != defaultPF);
+  }
+
+  public boolean setupJobOptions()
+  {
+    return pjob.printDialog();
+  }
+
+  public void printFile()
+  throws PrinterException, IOException
+  {
+    fph = new FilePrintHelper();
+    in = new RandomAccessFile(fname, "r");
+    pjob.print();
+    in.close();
+  }
+
+  //---Implementierung von Printable-------------------
+  public int print(Graphics g, PageFormat pf, int page)
+  throws PrinterException
+  {
+    int ret = PAGE_EXISTS;
+    String line = null;
+    try {
+      if (fph.knownPage(page)) {
+        in.seek(fph.getFileOffset(page));
+        line = in.readLine();
+      } else {
+        long offset = in.getFilePointer();
+        line = in.readLine();
+        if (line == null) {
+          ret = NO_SUCH_PAGE;
+        } else {
+          fph.createPage(page);
+          fph.setFileOffset(page, offset);
+        }
+      }
+      if (ret == PAGE_EXISTS) {
+        //Seite ausgeben, Grafikkontext vorbereiten
+        Graphics2D g2 = (Graphics2D)g; 
+        g2.scale(1.0 / RESMUL, 1.0 / RESMUL);
+        int ypos = (int)pf.getImageableY() * RESMUL;
+        int xpos = ((int)pf.getImageableX() + 2) * RESMUL;
+        int yd = 12 * RESMUL;
+        int ymax = ypos + (int)pf.getImageableHeight() * RESMUL - yd;
+        //Seitentitel ausgeben
+        ypos += yd; 
+        g2.setColor(Color.black);
+        g2.setFont(new Font("Monospaced", Font.BOLD, 10 * RESMUL));
+        g.drawString(fname + ", Seite " + (page + 1), xpos, ypos);
+        g.drawLine(
+          xpos,
+          ypos + 6 * RESMUL,
+          xpos + (int)pf.getImageableWidth() * RESMUL,
+          ypos + 6 * RESMUL
+        );
+        ypos += 2 * yd;
+        //Zeilen ausgeben
+        g2.setColor(new Color(0, 0, 127)); 
+        g2.setFont(new Font("Monospaced", Font.PLAIN, 10 * RESMUL));
+        while (line != null) {
+          g.drawString(line, xpos, ypos);
+          ypos += yd;
+          if (ypos >= ymax) {
+            break;
+          }
+          line = in.readLine();
+        }
+      }
+    } catch (IOException e) {
+      throw new PrinterException(e.toString());
+    }
+    return ret;
+  }
+
+  //---Main--------------------------------------------
+  public static void main(String[] args)
+  {
+    SimpleFilePrinter sfp = new SimpleFilePrinter(args[0]);
+    if (sfp.setupPageFormat()) {
+      if (sfp.setupJobOptions()) {
+        try {
+          sfp.printFile();
+        } catch (Exception e) {
+          System.err.println(e.toString());
+          System.exit(1);
+        }
+      }
+    }
+    System.exit(0);
+  }
+}
\ No newline at end of file
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