Mercurial Repositories > eric / file comparison
comparison: HexEdit/HexEditGotoWidget.py
HexEdit/HexEditGotoWidget.py
- changeset 4670
- d401ba329d24
- child 4687
- f1d921533cc5
equal
deleted
inserted
replaced
| 4669:d37bfc9ca3b9 | 4670:d401ba329d24 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2016 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a movement (goto) widget for the hex editor. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 from PyQt5.QtCore import pyqtSlot, Qt, QRegExp | |
| 13 from PyQt5.QtGui import QRegExpValidator | |
| 14 from PyQt5.QtWidgets import QWidget | |
| 15 | |
| 16 from .Ui_HexEditGotoWidget import Ui_HexEditGotoWidget | |
| 17 | |
| 18 import UI.PixmapCache | |
| 19 | |
| 20 | |
| 21 class HexEditGotoWidget(QWidget, Ui_HexEditGotoWidget): | |
| 22 """ | |
| 23 Class implementing a movement (goto) widget for the hex editor. | |
| 24 """ | |
| 25 def __init__(self, editor, parent=None): | |
| 26 """ | |
| 27 Constructor | |
| 28 | |
| 29 @param editor reference to the hex editor widget | |
| 30 @type HexEditWidget | |
| 31 @param parent reference to the parent widget | |
| 32 @type QWidget | |
| 33 """ | |
| 34 super(HexEditGotoWidget, self).__init__(parent) | |
| 35 self.setupUi(self) | |
| 36 | |
| 37 self.__editor = editor | |
| 38 | |
| 39 # keep this in sync with the logic in __getContent() | |
| 40 self.__formatAndValidators = { | |
| 41 "hex": (self.tr("Hex"), QRegExpValidator((QRegExp("[0-9a-f]*")))), | |
| 42 "dec": (self.tr("Dec"), QRegExpValidator((QRegExp("[0-9]*")))), | |
| 43 } | |
| 44 formatOrder = ["hex", "dec"] | |
| 45 | |
| 46 self.__currentFormat = "" | |
| 47 | |
| 48 self.closeButton.setIcon(UI.PixmapCache.getIcon("close.png")) | |
| 49 | |
| 50 for format in formatOrder: | |
| 51 formatStr, validator = self.__formatAndValidators[format] | |
| 52 self.formatCombo.addItem(formatStr, format) | |
| 53 | |
| 54 self.formatCombo.setCurrentIndex(0) | |
| 55 | |
| 56 @pyqtSlot() | |
| 57 def on_closeButton_clicked(self): | |
| 58 """ | |
| 59 Private slot to close the widget. | |
| 60 """ | |
| 61 self.__editor.setFocus(Qt.OtherFocusReason) | |
| 62 self.close() | |
| 63 | |
| 64 @pyqtSlot(int) | |
| 65 def on_formatCombo_currentIndexChanged(self, idx): | |
| 66 """ | |
| 67 Private slot to handle a selection of the format. | |
| 68 | |
| 69 @param idx index of the selected entry | |
| 70 @type int | |
| 71 """ | |
| 72 if idx >= 0: | |
| 73 format = self.formatCombo.itemData(idx) | |
| 74 | |
| 75 if format != self.__currentFormat: | |
| 76 txt = self.offsetEdit.text() | |
| 77 newTxt = self.__convertText( | |
| 78 txt, self.__currentFormat, format) | |
| 79 self.__currentFormat = format | |
| 80 | |
| 81 self.offsetEdit.setValidator( | |
| 82 self.__formatAndValidators[format][1]) | |
| 83 | |
| 84 self.offsetEdit.setText(newTxt) | |
| 85 | |
| 86 @pyqtSlot(str) | |
| 87 def on_offsetEdit_textChanged(self, offset): | |
| 88 """ | |
| 89 Private slot handling a change of the entered offset. | |
| 90 | |
| 91 @param offset entered offset | |
| 92 @type str | |
| 93 """ | |
| 94 self.gotoButton.setEnabled(bool(offset)) | |
| 95 | |
| 96 @pyqtSlot() | |
| 97 def on_gotoButton_clicked(self): | |
| 98 """ | |
| 99 Private slot to move the cursor and extend the selection. | |
| 100 """ | |
| 101 format = self.formatCombo.itemData(self.formatCombo.currentIndex()) | |
| 102 if format == "hex": | |
| 103 offset = int(self.offsetEdit.text(), 16) | |
| 104 else: | |
| 105 offset = int(self.offsetEdit.text(), 10) | |
| 106 | |
| 107 fromCursor = self.cursorCheckBox.isChecked() | |
| 108 backwards = self.backCheckBox.isChecked() | |
| 109 extendSelection = self.selectionCheckBox.isChecked() | |
| 110 | |
| 111 self.__editor.goto(offset, fromCursor=fromCursor, backwards=backwards, | |
| 112 extendSelection=extendSelection) | |
| 113 | |
| 114 def show(self): | |
| 115 """ | |
| 116 Public slot to show the widget. | |
| 117 """ | |
| 118 self.offsetEdit.setFocus() | |
| 119 super(HexEditGotoWidget, self).show() | |
| 120 | |
| 121 def keyPressEvent(self, event): | |
| 122 """ | |
| 123 Protected slot to handle key press events. | |
| 124 | |
| 125 @param event reference to the key press event | |
| 126 @type QKeyEvent | |
| 127 """ | |
| 128 if event.key() == Qt.Key_Escape: | |
| 129 self.close() | |
| 130 | |
| 131 def __convertText(self, txt, oldFormat, newFormat): | |
| 132 """ | |
| 133 Private method to convert text from one format into another. | |
| 134 | |
| 135 @param txt text to be converted | |
| 136 @type str | |
| 137 @param oldFormat current format of the text | |
| 138 @type str | |
| 139 @param newFormat format to convert to | |
| 140 @type str | |
| 141 @return converted text | |
| 142 @rtype str | |
| 143 """ | |
| 144 if oldFormat and newFormat: | |
| 145 # step 1: convert the text to an integer using the old format | |
| 146 if oldFormat == "hex": | |
| 147 index = int(txt, 16) | |
| 148 else: | |
| 149 index = int(txt, 10) | |
| 150 | |
| 151 # step 2: convert the integer to text using the new format | |
| 152 if newFormat == "hex": | |
| 153 txt = "{0:x}".format(index) | |
| 154 else: | |
| 155 txt = "{0:d}".format(index) | |
| 156 | |
| 157 return txt |
