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1 #!/usr/bin/python
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2
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3 from PyQt4.QtCore import *
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4 from PyQt4.QtGui import *
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5 import sys
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6 import hexfile
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7
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8 class BinViewer(QWidget):
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9 """
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10 The binviewer consists of a hex view, a ascii view
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11 and perhaps others..
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12 """
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13 def __init__(self):
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14 super().__init__()
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15 self.setFont(QFont('Courier'))
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16 self.fontHeight = self.fontMetrics().height()
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17 self.fontWidth = self.fontMetrics().width('x')
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18 self.hexfile = hexfile.HexFile()
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19 def paintEvent(self, event):
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20 painter = QPainter(self)
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21 br = QBrush(Qt.lightGray)
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22 painter.setBrush(br)
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23 h = self.height()
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24 addressWidth = self.fontWidth * 8
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25 painter.drawRect(2, 2, addressWidth, h)
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26 br2 = QBrush(Qt.yellow)
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27 painter.setBrush(br2)
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28 w = self.width()
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29 byteWidth = self.fontWidth * (16 * 3 - 1)
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30 painter.drawRect(addressWidth + 4, 2, byteWidth, h)
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31 asciiWidth = self.fontWidth * 16
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32 br2 = QBrush(Qt.gray)
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33 painter.setBrush(br2)
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34 painter.drawRect(addressWidth + byteWidth + 4, 2, asciiWidth, h)
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35 rows = int(h / self.fontHeight) + 1
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36 offset = 0
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37 for r in range(1, rows):
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38 bts = self.getBytes(offset + r - 1)
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39 addr = '{0:08X}'.format(r << 16)
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40 painter.drawText(2, 2 + self.fontHeight * r, addr)
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41 x = addressWidth + 4
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42 for b in bts:
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43 b = '{0:02X}'.format(b)
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44 painter.drawText(x, 2 + self.fontHeight * r, b)
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45 x += 3 * self.fontWidth
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46 x = addressWidth + byteWidth + 4
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47 for b in bts:
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48 b = '{0}'.format(chr(b))
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49 painter.drawText(x, 2 + self.fontHeight * r, b)
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50 x += 1 * self.fontWidth
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105
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51 def getBytes(self, offset):
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52 if self.hexfile.regions:
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53 r = self.hexfile.regions[0]
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54 chunks = [r.data[p:p+16] for p in range(0, len(r.data), 16)]
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55 if len(chunks) > offset:
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56 return chunks[offset]
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57 return bytes()
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58 def setHexFile(self, hf):
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59 self.hexfile = hf
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60 self.update()
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61
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62 class BinViewMain(QMainWindow):
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63 def __init__(self):
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64 super().__init__()
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65 self.bv = BinViewer()
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66 self.setCentralWidget(self.bv)
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67 mb = self.menuBar()
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68 fileMenu = mb.addMenu("File")
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69
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70 def addMenuEntry(name, menu, callback, shortcut=None):
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71 a = QAction(name, self)
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72 menu.addAction(a)
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73 a.triggered.connect(callback)
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74 if shortcut: a.setShortcut(shortcut)
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75 addMenuEntry("Open", fileMenu, self.openFile, QKeySequence(QKeySequence.Open))
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76 def openFile(self):
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77 filename = QFileDialog.getOpenFileName(self, "Open hex file...", "*.hex", "Intel hexfiles (*.hex)")
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78 if filename:
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79 h = hexfile.HexFile(filename)
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80
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81 if __name__ == '__main__':
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82 app = QApplication(sys.argv)
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83 bv = BinViewMain()
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84 bv.show()
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85 bv.bv.setHexFile(hexfile.HexFile('audio.hex'))
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86 app.exec_()
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87
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