Mercurial Repositories > eric / file comparison
comparison: HexEdit/HexEditWidget.py
HexEdit/HexEditWidget.py
- changeset 4686
- 5f8a5c568230
- parent 4673
- 6fa2418f010c
- child 4688
- fe866d2674fc
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| 4684:ff9bce0e0424 | 4686:5f8a5c568230 |
|---|---|
| 5 | 5 |
| 6 """ | 6 """ |
| 7 Module implementing an editor for binary data. | 7 Module implementing an editor for binary data. |
| 8 """ | 8 """ |
| 9 | 9 |
| 10 from __future__ import unicode_literals | 10 from __future__ import unicode_literals, division |
| 11 try: | 11 try: |
| 12 chr = unichr # __IGNORE_EXCEPTION__ | 12 chr = unichr # __IGNORE_EXCEPTION__ |
| 13 except NameError: | 13 except NameError: |
| 14 pass | 14 pass |
| 15 | |
| 16 import math | |
| 15 | 17 |
| 16 from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt, QByteArray, QTimer, QRect, \ | 18 from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt, QByteArray, QTimer, QRect, \ |
| 17 QBuffer, QIODevice | 19 QBuffer, QIODevice |
| 18 from PyQt5.QtGui import QBrush, QPen, QColor, QFont, QPalette, QKeySequence, \ | 20 from PyQt5.QtGui import QBrush, QPen, QColor, QFont, QPalette, QKeySequence, \ |
| 19 QPainter | 21 QPainter |
| 96 # set read only mode on/off | 98 # set read only mode on/off |
| 97 self.__cursorPosition = 0 | 99 self.__cursorPosition = 0 |
| 98 # absolute position of cursor, 1 Byte == 2 tics | 100 # absolute position of cursor, 1 Byte == 2 tics |
| 99 | 101 |
| 100 self.__addrDigits = 0 | 102 self.__addrDigits = 0 |
| 103 self.__addrSeparators = 0 | |
| 101 self.__blink = True | 104 self.__blink = True |
| 102 self.__bData = QBuffer() | 105 self.__bData = QBuffer() |
| 103 self.__cursorRect = QRect() | 106 self.__cursorRect = QRect() |
| 104 self.__cursorRectAscii = QRect() | 107 self.__cursorRectAscii = QRect() |
| 105 self.__dataShown = bytearray() | 108 self.__dataShown = bytearray() |
| 261 self.setCursorPosition(self.__cursorPosition) | 264 self.setCursorPosition(self.__cursorPosition) |
| 262 self.viewport().update() | 265 self.viewport().update() |
| 263 | 266 |
| 264 def addressWidth(self): | 267 def addressWidth(self): |
| 265 """ | 268 """ |
| 266 Public method to get the minimum width of the address area in | 269 Public method to get the width of the address area in |
| 267 characters. | 270 characters. |
| 271 | |
| 272 Note: The address area width is always a multiple of four. | |
| 268 | 273 |
| 269 @return minimum width of the address area | 274 @return minimum width of the address area |
| 270 @rtype int | 275 @rtype int |
| 271 """ | 276 """ |
| 272 size = self.__chunks.size() | 277 size = self.__chunks.size() |
| 281 n += 2 | 286 n += 2 |
| 282 size //= 0x100 | 287 size //= 0x100 |
| 283 if size > 0x10: | 288 if size > 0x10: |
| 284 n += 1 | 289 n += 1 |
| 285 size //= 0x10 | 290 size //= 0x10 |
| 291 n = int(math.ceil(n / 4)) * 4 | |
| 286 | 292 |
| 287 if n > self.__addressWidth: | 293 if n > self.__addressWidth: |
| 288 return n | 294 return n |
| 289 else: | 295 else: |
| 290 return self.__addressWidth | 296 return self.__addressWidth |
| 291 | 297 |
| 292 def setAddressWidth(self, width): | 298 def setAddressWidth(self, width): |
| 293 """ | 299 """ |
| 294 Public method to set the width of the address area. | 300 Public method to set the width of the address area. |
| 295 | 301 |
| 302 Note: The address area width is always a multiple of four. | |
| 303 The given value will be adjusted as required. | |
| 304 | |
| 296 @param width width of the address area in characters | 305 @param width width of the address area in characters |
| 297 @type int | 306 @type int |
| 298 """ | 307 """ |
| 299 self.__addressWidth = width | 308 self.__addressWidth = int(math.ceil(width / 4)) * 4 |
| 300 self.__adjust() | 309 self.__adjust() |
| 301 self.setCursorPosition(self.__cursorPosition) | 310 self.setCursorPosition(self.__cursorPosition) |
| 302 self.viewport().update() | 311 self.viewport().update() |
| 303 | 312 |
| 304 def asciiArea(self): | 313 def asciiArea(self): |
| 1350 self.replace(self.__bPosCurrent, | 1359 self.replace(self.__bPosCurrent, |
| 1351 self.__fromHex(hexValue)[0]) | 1360 self.__fromHex(hexValue)[0]) |
| 1352 | 1361 |
| 1353 self.setCursorPosition(self.__cursorPosition + 1) | 1362 self.setCursorPosition(self.__cursorPosition + 1) |
| 1354 self.__resetSelection(self.__cursorPosition) | 1363 self.__resetSelection(self.__cursorPosition) |
| 1364 # TODO: handle pressing keyboard modifier only by not calling __referesh | |
| 1355 | 1365 |
| 1356 self.__refresh() | 1366 self.__refresh() |
| 1357 | 1367 |
| 1358 def mouseMoveEvent(self, evt): | 1368 def mouseMoveEvent(self, evt): |
| 1359 """ | 1369 """ |
| 1426 pxPosY = self.__pxCharHeight | 1436 pxPosY = self.__pxCharHeight |
| 1427 while row <= len(self.__dataShown) // self.BYTES_PER_LINE: | 1437 while row <= len(self.__dataShown) // self.BYTES_PER_LINE: |
| 1428 address = "{0:0{1}x}".format( | 1438 address = "{0:0{1}x}".format( |
| 1429 self.__bPosFirst + row * self.BYTES_PER_LINE, | 1439 self.__bPosFirst + row * self.BYTES_PER_LINE, |
| 1430 self.__addrDigits) | 1440 self.__addrDigits) |
| 1441 address = Globals.strGroup(address, ":", 4) | |
| 1431 painter.drawText(self.__pxPosAdrX - pxOfsX, pxPosY, | 1442 painter.drawText(self.__pxPosAdrX - pxOfsX, pxPosY, |
| 1432 address) | 1443 address) |
| 1433 # increment loop variables | 1444 # increment loop variables |
| 1434 row += 1 | 1445 row += 1 |
| 1435 pxPosY += self.__pxCharHeight | 1446 pxPosY += self.__pxCharHeight |
| 1700 Private slot to recalculate pixel positions. | 1711 Private slot to recalculate pixel positions. |
| 1701 """ | 1712 """ |
| 1702 # recalculate graphics | 1713 # recalculate graphics |
| 1703 if self.__addressArea: | 1714 if self.__addressArea: |
| 1704 self.__addrDigits = self.addressWidth() | 1715 self.__addrDigits = self.addressWidth() |
| 1705 self.__pxPosHexX = self.__pxGapAdr + \ | 1716 self.__addrSeparators = self.__addrDigits // 4 - 1 |
| 1706 self.__addrDigits * self.__pxCharWidth + self.__pxGapAdrHex | 1717 self.__pxPosHexX = ( |
| 1718 self.__pxGapAdr + | |
| 1719 (self.__addrDigits + self.__addrSeparators) * | |
| 1720 self.__pxCharWidth + self.__pxGapAdrHex) | |
| 1707 else: | 1721 else: |
| 1708 self.__pxPosHexX = self.__pxGapAdrHex | 1722 self.__pxPosHexX = self.__pxGapAdrHex |
| 1709 self.__pxPosAdrX = self.__pxGapAdr | 1723 self.__pxPosAdrX = self.__pxGapAdr |
| 1710 self.__pxPosAsciiX = self.__pxPosHexX + \ | 1724 self.__pxPosAsciiX = self.__pxPosHexX + \ |
| 1711 self.HEXCHARS_PER_LINE * self.__pxCharWidth + self.__pxGapHexAscii | 1725 self.HEXCHARS_PER_LINE * self.__pxCharWidth + self.__pxGapHexAscii |
