Mercurial Repositories > eric / file comparison
comparison: HexEdit/HexEditWidget.py
HexEdit/HexEditWidget.py
- changeset 4673
- 6fa2418f010c
- parent 4670
- d401ba329d24
- child 4686
- 5f8a5c568230
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| 4672:67fa9b25183f | 4673:6fa2418f010c |
|---|---|
| 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 |
| 11 | 11 try: |
| 12 import sys | 12 chr = unichr # __IGNORE_EXCEPTION__ |
| 13 is_Py2 = sys.version_info[0] == 2 | 13 except NameError: |
| 14 # TODO: use unichr for Python2 | 14 pass |
| 15 | 15 |
| 16 from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt, QByteArray, QTimer, QRect, \ | 16 from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt, QByteArray, QTimer, QRect, \ |
| 17 QBuffer, QIODevice | 17 QBuffer, QIODevice |
| 18 from PyQt5.QtGui import QBrush, QPen, QColor, QFont, QPalette, QKeySequence, \ | 18 from PyQt5.QtGui import QBrush, QPen, QColor, QFont, QPalette, QKeySequence, \ |
| 19 QPainter | 19 QPainter |
| 358 self.__pxCharHeight) | 358 self.__pxCharHeight) |
| 359 x = (pos % (2 * self.BYTES_PER_LINE)) | 359 x = (pos % (2 * self.BYTES_PER_LINE)) |
| 360 self.__pxCursorX = ( | 360 self.__pxCursorX = ( |
| 361 (((x // 2) * 3) + (x % 2)) * self.__pxCharWidth + self.__pxPosHexX) | 361 (((x // 2) * 3) + (x % 2)) * self.__pxCharWidth + self.__pxPosHexX) |
| 362 | 362 |
| 363 self.__setHexCursorRect() | |
| 364 | |
| 365 # step 4: calculate position of ASCII cursor | |
| 366 x = self.__bPosCurrent % self.BYTES_PER_LINE | |
| 367 self.__cursorRectAscii = QRect( | |
| 368 self.__pxPosAsciiX + x * self.__pxCharWidth - 1, | |
| 369 self.__pxCursorY - self.__pxCharHeight + 4, | |
| 370 self.__pxCharWidth + 1, self.__pxCharHeight + 1) | |
| 371 | |
| 372 # step 5: draw new cursors | |
| 373 self.__blink = True | |
| 374 self.viewport().update(self.__cursorRect) | |
| 375 if self.__asciiArea: | |
| 376 self.viewport().update(self.__cursorRectAscii) | |
| 377 self.currentAddressChanged.emit(self.__bPosCurrent) | |
| 378 | |
| 379 def __setHexCursorRect(self): | |
| 380 """ | |
| 381 Private method to set the cursor. | |
| 382 """ | |
| 363 if self.__overwriteMode: | 383 if self.__overwriteMode: |
| 364 self.__cursorRect = QRect( | 384 self.__cursorRect = QRect( |
| 365 self.__pxCursorX, self.__pxCursorY + self.__pxCursorWidth, | 385 self.__pxCursorX, self.__pxCursorY + self.__pxCursorWidth, |
| 366 self.__pxCharWidth, self.__pxCursorWidth) | 386 self.__pxCharWidth, self.__pxCursorWidth) |
| 367 else: | 387 else: |
| 368 self.__cursorRect = QRect( | 388 self.__cursorRect = QRect( |
| 369 self.__pxCursorX, self.__pxCursorY - self.__pxCharHeight + 4, | 389 self.__pxCursorX, self.__pxCursorY - self.__pxCharHeight + 4, |
| 370 self.__pxCursorWidth, self.__pxCharHeight) | 390 self.__pxCursorWidth, self.__pxCharHeight) |
| 371 | |
| 372 # step 4: calculate position of ASCII cursor | |
| 373 x = self.__bPosCurrent % self.BYTES_PER_LINE | |
| 374 self.__cursorRectAscii = QRect( | |
| 375 self.__pxPosAsciiX + x * self.__pxCharWidth - 1, | |
| 376 self.__pxCursorY - self.__pxCharHeight + 4, | |
| 377 self.__pxCharWidth + 1, self.__pxCharHeight + 1) | |
| 378 | |
| 379 # step 5: draw new cursors | |
| 380 self.__blink = True | |
| 381 self.viewport().update(self.__cursorRect) | |
| 382 if self.__asciiArea: | |
| 383 self.viewport().update(self.__cursorRectAscii) | |
| 384 self.currentAddressChanged.emit(self.__bPosCurrent) | |
| 385 | 391 |
| 386 def cursorBytePosition(self): | 392 def cursorBytePosition(self): |
| 387 """ | 393 """ |
| 388 Public method to get the cursor position in bytes. | 394 Public method to get the cursor position in bytes. |
| 389 | 395 |
| 535 @param on flag indicating the new overwrite mode | 541 @param on flag indicating the new overwrite mode |
| 536 @type bool | 542 @type bool |
| 537 """ | 543 """ |
| 538 self.__overwriteMode = on | 544 self.__overwriteMode = on |
| 539 self.overwriteModeChanged.emit(self.__overwriteMode) | 545 self.overwriteModeChanged.emit(self.__overwriteMode) |
| 546 | |
| 547 # step 1: delete old cursor | |
| 548 self.__blink = False | |
| 549 self.viewport().update(self.__cursorRect) | |
| 550 # step 2: change the cursor rectangle | |
| 551 self.__setHexCursorRect() | |
| 552 # step 3: draw new cursors | |
| 553 self.__blink = True | |
| 554 self.viewport().update(self.__cursorRect) | |
| 540 | 555 |
| 541 def selectionColors(self): | 556 def selectionColors(self): |
| 542 """ | 557 """ |
| 543 Public method to get the selection colors. | 558 Public method to get the selection colors. |
| 544 | 559 |
| 1472 pxPosX += 3 * self.__pxCharWidth | 1487 pxPosX += 3 * self.__pxCharWidth |
| 1473 | 1488 |
| 1474 # render ascii value | 1489 # render ascii value |
| 1475 if self.__asciiArea: | 1490 if self.__asciiArea: |
| 1476 by = self.__dataShown[bPosLine + colIdx] | 1491 by = self.__dataShown[bPosLine + colIdx] |
| 1477 if is_Py2 and (by < 0x20 or by > 0x7e): | 1492 if by < 0x20 or (by > 0x7e and by < 0xa0): |
| 1478 ch = "." | |
| 1479 elif not is_Py2 and \ | |
| 1480 (by < 0x20 or (by > 0x7e and by < 0xa0)): | |
| 1481 ch = "." | 1493 ch = "." |
| 1482 else: | 1494 else: |
| 1483 ch = chr(by) | 1495 ch = chr(by) |
| 1484 r.setRect( | 1496 r.setRect( |
| 1485 pxPosAsciiX2, | 1497 pxPosAsciiX2, |
| 1672 ascStr = "" | 1684 ascStr = "" |
| 1673 for j in range(16): | 1685 for j in range(16): |
| 1674 if (i + j) < len(byteArray): | 1686 if (i + j) < len(byteArray): |
| 1675 hexStr += " {0:02x}".format(byteArray[i + j]) | 1687 hexStr += " {0:02x}".format(byteArray[i + j]) |
| 1676 by = byteArray[i + j] | 1688 by = byteArray[i + j] |
| 1677 if is_Py2 and (by < 0x20 or by > 0x7e): | 1689 if by < 0x20 or (by > 0x7e and by < 0xa0): |
| 1678 ch = "." | |
| 1679 elif not is_Py2 and \ | |
| 1680 (by < 0x20 or (by > 0x7e and by < 0xa0)): | |
| 1681 ch = "." | 1690 ch = "." |
| 1682 else: | 1691 else: |
| 1683 ch = chr(by) | 1692 ch = chr(by) |
| 1684 ascStr += ch | 1693 ascStr += ch |
| 1685 result += "{0} {1:<48} {2:<17}\n".format(addrStr, hexStr, ascStr) | 1694 result += "{0} {1:<48} {2:<17}\n".format(addrStr, hexStr, ascStr) |
