--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python/hexviewer.py	Sun Dec 30 22:31:55 2012 +0100
@@ -0,0 +1,78 @@
+#!/usr/bin/python
+
+from PyQt4.QtCore import *
+from PyQt4.QtGui import *
+import sys
+import hexfile
+
+class BinViewer(QWidget):
+   """
+      The binviewer consists of a hex view, a ascii view
+      and perhaps others..
+   """
+   def __init__(self):
+      super().__init__()
+      self.setFont(QFont('Courier'))
+      self.fontHeight = self.fontMetrics().height()
+      self.fontWidth = self.fontMetrics().width('x')
+      self.hexfile = hexfile.HexFile()
+   def paintEvent(self, event):
+      painter = QPainter(self)
+      br = QBrush(Qt.lightGray)
+      painter.setBrush(br)
+      h = self.height()
+      addressWidth = self.fontWidth * 8
+      painter.drawRect(2, 2, addressWidth, h)
+      br2 = QBrush(Qt.yellow)
+      painter.setBrush(br2)
+      w = self.width()
+      byteWidth = self.fontWidth * 16 * 3
+      painter.drawRect(addressWidth + 4, 2, byteWidth, h)
+      asciiWidth = self.fontWidth * 16
+      br2 = QBrush(Qt.gray)
+      painter.setBrush(br2)
+      painter.drawRect(addressWidth + byteWidth + 4, 2, asciiWidth, h)
+      for r in range(1, 10):
+         addr = '{0:08X}'.format(r << 16)
+         painter.drawText(2, 2 + self.fontHeight * r, addr)
+         bts = bytes(range(16))
+         x = addressWidth + 4
+         for b in bts:
+            b = '{0:02X}'.format(b)
+            painter.drawText(x, 2 + self.fontHeight * r, b)
+            x += 3 * self.fontWidth
+         x = addressWidth + byteWidth + 4
+         for b in bts:
+            b = '{0}'.format(chr(b))
+            painter.drawText(x, 2 + self.fontHeight * r, b)
+            x += 1 * self.fontWidth
+   def setHexFile(self, hf):
+      self.hexFile = hf
+      self.update()
+
+class BinViewMain(QMainWindow):
+   def __init__(self):
+      super().__init__()
+      self.bv = BinViewer()
+      self.setCentralWidget(self.bv)
+      self.bv.setHexFile(hexfile.HexFile('audio.hex'))
+      mb = self.menuBar()
+      fileMenu = mb.addMenu("File")
+      
+      def addMenuEntry(name, menu, callback, shortcut=None):
+         a = QAction(name, self)
+         menu.addAction(a)
+         a.triggered.connect(callback)
+         if shortcut: a.setShortcut(shortcut)
+      addMenuEntry("Open", fileMenu, self.openFile, QKeySequence(QKeySequence.Open))
+   def openFile(self):
+      filename = QFileDialog.getOpenFileName(self, "Open hex file...", "*.hex", "Intel hexfiles (*.hex)")
+      if filename:
+         h = hexfile.HexFile(filename)
+
+if __name__ == '__main__':
+   app = QApplication(sys.argv)
+   bv = BinViewMain()
+   bv.show()
+   app.exec_()
+