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comparison python/hexedit.py @ 140:104037b292cc

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Added ui file for hexeditor
author Windel Bouwman
date Sun, 27 Jan 2013 12:16:09 +0100
parents 2ec4d4332b7a
children 982ddb5f786d
comparison
equal deleted inserted replaced
139:2ec4d4332b7a 140:104037b292cc
1 import sys 1 import sys
2 from PyQt4.QtCore import * 2 from PyQt4.QtCore import *
3 from PyQt4.QtGui import * 3 from PyQt4.QtGui import *
4 from PyQt4 import uic
4 5
5 BYTES_PER_LINE, GAP = 8, 12 6 BYTES_PER_LINE, GAP = 16, 12
6 7
7 def clamp(minimum, x, maximum): 8 def clamp(minimum, x, maximum):
8 return max(minimum, min(x, maximum)) 9 return max(minimum, min(x, maximum))
9 10
10 def asciiChar(v): 11 def asciiChar(v):
16 class BinViewer(QWidget): 17 class BinViewer(QWidget):
17 """ The view has an address, hex byte and ascii column """ 18 """ The view has an address, hex byte and ascii column """
18 def __init__(self, scrollArea): 19 def __init__(self, scrollArea):
19 super().__init__(scrollArea) 20 super().__init__(scrollArea)
20 self.scrollArea = scrollArea 21 self.scrollArea = scrollArea
21 self.setFont(QFont('Courier', 18)) 22 self.setFont(QFont('Courier', 16))
22 self.setFocusPolicy(Qt.StrongFocus) 23 self.setFocusPolicy(Qt.StrongFocus)
23 self.blinkcursor = False 24 self.blinkcursor = False
24 self.cursorX = self.cursorY = 0 25 self.cursorX = self.cursorY = 0
25 self.scrollArea = scrollArea 26 self.scrollArea = scrollArea
26 self.Data = bytearray() 27 self.Data = bytearray()
68 yposStart = int(firstIndex / BYTES_PER_LINE) * chh + chh 69 yposStart = int(firstIndex / BYTES_PER_LINE) * chh + chh
69 # Draw contents: 70 # Draw contents:
70 painter.setPen(Qt.black) 71 painter.setPen(Qt.black)
71 ypos = yposStart 72 ypos = yposStart
72 for index in range(firstIndex, lastIndex, BYTES_PER_LINE): 73 for index in range(firstIndex, lastIndex, BYTES_PER_LINE):
74 painter.setPen(Qt.black)
73 painter.drawText(self.xposAddr, ypos, '{0:08X}'.format(index + self.Offset)) 75 painter.drawText(self.xposAddr, ypos, '{0:08X}'.format(index + self.Offset))
74 xpos = self.xposHex 76 xpos = self.xposHex
75 xposAscii = self.xposAscii 77 xposAscii = self.xposAscii
76 for colIndex in range(BYTES_PER_LINE): 78 for colIndex in range(BYTES_PER_LINE):
77 if index + colIndex < len(self.Data): 79 if index + colIndex < len(self.Data):
78 b = self.Data[index + colIndex] 80 b = self.Data[index + colIndex]
81 bo = self.originalData[index + colIndex]
82 if b == bo:
83 painter.setPen(Qt.black)
84 else:
85 painter.setPen(Qt.red)
79 painter.drawText(xpos, ypos, '{0:02X}'.format(b)) 86 painter.drawText(xpos, ypos, '{0:02X}'.format(b))
80 painter.drawText(xposAscii, ypos, asciiChar(b)) 87 painter.drawText(xposAscii, ypos, asciiChar(b))
81 xpos += 3 * chw 88 xpos += 3 * chw
82 xposAscii += chw 89 xposAscii += chw
83 ypos += chh 90 ypos += chh
134 r = 1 if r > 0 else 0 141 r = 1 if r > 0 else 0
135 self.setMinimumHeight((int(len(self.Data) / BYTES_PER_LINE) + r) * self.charHeight + 4) 142 self.setMinimumHeight((int(len(self.Data) / BYTES_PER_LINE) + r) * self.charHeight + 4)
136 self.scrollArea.setMinimumHeight(self.charHeight * 8) 143 self.scrollArea.setMinimumHeight(self.charHeight * 8)
137 self.update() 144 self.update()
138 def setData(self, d): 145 def setData(self, d):
139 self.data = d 146 self.data = bytearray(d)
147 self.originalData = bytearray(d)
140 self.adjust() 148 self.adjust()
141 self.setCursorPosition(0) 149 self.setCursorPosition(0)
142 Data = property(lambda self: self.data, setData) 150 Data = property(lambda self: self.data, setData)
143 151
144 class HexEdit(QScrollArea): 152 class HexEdit(QScrollArea):
148 self.setWidget(self.bv) 156 self.setWidget(self.bv)
149 self.setWidgetResizable(True) 157 self.setWidgetResizable(True)
150 self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn) 158 self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn)
151 self.setFocusPolicy(Qt.NoFocus) 159 self.setFocusPolicy(Qt.NoFocus)
152 160
161 class HexEditor(QMainWindow):
162 def __init__(self):
163 super().__init__()
164 uic.loadUi('hexeditor.ui', baseinstance=self)
165 self.he = HexEdit()
166 self.setCentralWidget(self.he)
167 self.actionOpen.triggered.connect(self.doOpen)
168 self.actionSave.triggered.connect(self.doSave)
169 self.actionSaveAs.triggered.connect(self.doSaveAs)
170 self.fileName = None
171 self.updateControls()
172 def updateControls(self):
173 s = True if self.fileName else False
174 self.actionSave.setEnabled(s)
175 self.actionSaveAs.setEnabled(s)
176 def doOpen(self):
177 filename = QFileDialog.getOpenFileName(self)
178 if filename:
179 with open(filename, 'rb') as f:
180 self.he.bv.Data = f.read()
181 self.fileName = filename
182 self.updateControls()
183 def doSave(self):
184 self.updateControls()
185 def doSaveAs(self):
186 filename = QFileDialog.getSaveFileName(self)
187 if filename:
188 with open(filename, 'wb') as f:
189 f.write(self.he.bv.Data)
190 self.fileName = filename
191 self.updateControls()
192
153 if __name__ == '__main__': 193 if __name__ == '__main__':
154 app = QApplication(sys.argv) 194 app = QApplication(sys.argv)
155 he = HexEdit() 195 he = HexEditor()
156 he.show() 196 he.show()
157 he.bv.Data = bytearray(range(100)) * 8 + b'x' 197 #he.bv.Data = bytearray(range(100)) * 8 + b'x'
158 app.exec() 198 app.exec()
159 199