Merge pull request #5 from cybernesto/printshopgraphics

Added preview of Print Shop Graphics

src/com/bytezone/diskbrowser/applefile/PrintShopGraphic.java

@@ -0,0 +1,43 @@
+package com.bytezone.diskbrowser.applefile;
+
+import java.awt.AlphaComposite;
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+import java.awt.image.DataBuffer;
+
+public class PrintShopGraphic extends AbstractFile
+{
+  public PrintShopGraphic (String name, byte[] buffer)
+  {
+    super (name, buffer);
+
+    image = new BufferedImage (88, 52, BufferedImage.TYPE_BYTE_GRAY);
+    Graphics2D g2d = image.createGraphics ();
+    g2d.setComposite (AlphaComposite.getInstance (AlphaComposite.SRC_OVER, (float) 1.0));
+    DataBuffer dataBuffer = image.getRaster ().getDataBuffer ();
+    int element = 0;
+
+    for (int ptr = 0; ptr < 572; ptr++)
+    {
+        for (int px = 7; px >= 0; px--)
+        {
+          int val = (buffer[ptr] >> px) & 0x01;
+          dataBuffer.setElem (element++, val == 0 ? 255 : 0);
+        }
+    }
+    
+    g2d.dispose ();
+  }
+
+  @Override
+  public String getText ()
+  {
+    StringBuilder text = new StringBuilder ();
+
+    text.append (String.format ("File Name      : %s%n", name));
+    text.append (String.format ("File size      : %,d%n", buffer.length));
+
+    return text.toString ();
+  }
+
+}

src/com/bytezone/diskbrowser/dos/AbstractCatalogEntry.java

@@ -228,6 +228,8 @@ abstract class AbstractCatalogEntry implements AppleFileSource
             else
               appleFile = new AssemblerProgram (name, exactBuffer, loadAddress);
           }
+          else if ((loadAddress == 0x5800 || loadAddress == 0x7800) && reportedLength == 0x240)
+        	  appleFile = new PrintShopGraphic(name, exactBuffer);
           else
           {
             appleFile = new AssemblerProgram (name, exactBuffer, loadAddress);