Mercurial Repositories > eric / file comparison
comparison: eric7/UI/NumbersWidget.py
eric7/UI/NumbersWidget.py
- branch
- eric7
- changeset 8312
- 800c432b34c8
- parent 8218
- 7c09585bd960
- child 8318
- 962bce857696
equal
deleted
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| 8311:4e8b98454baa | 8312:800c432b34c8 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2010 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a widget to show numbers in different formats. | |
| 8 """ | |
| 9 | |
| 10 from PyQt5.QtCore import pyqtSlot, pyqtSignal, Qt, QAbstractTableModel | |
| 11 from PyQt5.QtWidgets import QWidget, QHeaderView | |
| 12 | |
| 13 from E5Gui.E5Application import e5App | |
| 14 | |
| 15 from .Ui_NumbersWidget import Ui_NumbersWidget | |
| 16 | |
| 17 import UI.PixmapCache | |
| 18 | |
| 19 | |
| 20 class BinaryModel(QAbstractTableModel): | |
| 21 """ | |
| 22 Class implementing a model for entering binary numbers. | |
| 23 """ | |
| 24 def __init__(self, parent=None): | |
| 25 """ | |
| 26 Constructor | |
| 27 | |
| 28 @param parent reference to the parent widget (QWidget) | |
| 29 """ | |
| 30 super().__init__(parent) | |
| 31 | |
| 32 self.__bits = 0 | |
| 33 self.__value = 0 | |
| 34 | |
| 35 def rowCount(self, parent): | |
| 36 """ | |
| 37 Public method to get the number of rows of the model. | |
| 38 | |
| 39 @param parent parent index (QModelIndex) | |
| 40 @return number of columns (integer) | |
| 41 """ | |
| 42 return 1 | |
| 43 | |
| 44 def columnCount(self, parent): | |
| 45 """ | |
| 46 Public method to get the number of columns of the model. | |
| 47 | |
| 48 @param parent parent index (QModelIndex) | |
| 49 @return number of columns (integer) | |
| 50 """ | |
| 51 return self.__bits | |
| 52 | |
| 53 def data(self, index, role=Qt.ItemDataRole.DisplayRole): | |
| 54 """ | |
| 55 Public method to get data from the model. | |
| 56 | |
| 57 @param index index to get data for (QModelIndex) | |
| 58 @param role role of the data to retrieve (integer) | |
| 59 @return requested data | |
| 60 """ | |
| 61 if role == Qt.ItemDataRole.CheckStateRole: | |
| 62 return (self.__value >> (self.__bits - index.column() - 1)) & 1 | |
| 63 | |
| 64 elif role == Qt.ItemDataRole.DisplayRole: | |
| 65 return "" | |
| 66 | |
| 67 return None | |
| 68 | |
| 69 def flags(self, index): | |
| 70 """ | |
| 71 Public method to get flags from the model. | |
| 72 | |
| 73 @param index index to get flags for (QModelIndex) | |
| 74 @return flags (Qt.ItemFlags) | |
| 75 """ | |
| 76 return ( | |
| 77 Qt.ItemFlag.ItemIsUserCheckable | | |
| 78 Qt.ItemFlag.ItemIsEnabled | | |
| 79 Qt.ItemFlag.ItemIsSelectable | |
| 80 ) | |
| 81 | |
| 82 def headerData(self, section, orientation, | |
| 83 role=Qt.ItemDataRole.DisplayRole): | |
| 84 """ | |
| 85 Public method to get header data from the model. | |
| 86 | |
| 87 @param section section number (integer) | |
| 88 @param orientation orientation (Qt.Orientation) | |
| 89 @param role role of the data to retrieve (Qt.ItemDataRole) | |
| 90 @return requested data | |
| 91 """ | |
| 92 if ( | |
| 93 orientation == Qt.Orientation.Horizontal and | |
| 94 role == Qt.ItemDataRole.DisplayRole | |
| 95 ): | |
| 96 return str(self.__bits - section - 1) | |
| 97 | |
| 98 return QAbstractTableModel.headerData(self, section, orientation, role) | |
| 99 | |
| 100 def setBits(self, bits): | |
| 101 """ | |
| 102 Public slot to set the number of bits. | |
| 103 | |
| 104 @param bits number of bits to show (integer) | |
| 105 """ | |
| 106 self.beginResetModel() | |
| 107 self.__bits = bits | |
| 108 self.endResetModel() | |
| 109 | |
| 110 def setValue(self, value): | |
| 111 """ | |
| 112 Public slot to set the value to show. | |
| 113 | |
| 114 @param value value to show (integer) | |
| 115 """ | |
| 116 self.beginResetModel() | |
| 117 self.__value = value | |
| 118 self.endResetModel() | |
| 119 | |
| 120 def setBitsAndValue(self, bits, value): | |
| 121 """ | |
| 122 Public slot to set the number of bits and the value to show. | |
| 123 | |
| 124 @param bits number of bits to show (integer) | |
| 125 @param value value to show (integer) | |
| 126 """ | |
| 127 self.__bits = bits | |
| 128 self.__value = value | |
| 129 self.beginResetModel() | |
| 130 self.endResetModel() | |
| 131 | |
| 132 def getValue(self): | |
| 133 """ | |
| 134 Public slot to get the current value. | |
| 135 | |
| 136 @return current value of the model (integer) | |
| 137 """ | |
| 138 return self.__value | |
| 139 | |
| 140 def setData(self, index, value, role=Qt.ItemDataRole.EditRole): | |
| 141 """ | |
| 142 Public method to set the data of a node cell. | |
| 143 | |
| 144 @param index index of the node cell (QModelIndex) | |
| 145 @param value value to be set | |
| 146 @param role role of the data (integer) | |
| 147 @return flag indicating success (boolean) | |
| 148 """ | |
| 149 if role == Qt.ItemDataRole.CheckStateRole: | |
| 150 if ( | |
| 151 value == Qt.CheckState.Checked and | |
| 152 not self.data(index, Qt.ItemDataRole.CheckStateRole) | |
| 153 ): | |
| 154 self.__value |= (1 << self.__bits - index.column() - 1) | |
| 155 else: | |
| 156 self.__value &= ~(1 << self.__bits - index.column() - 1) | |
| 157 self.dataChanged.emit(index, index) | |
| 158 return True | |
| 159 | |
| 160 return False | |
| 161 | |
| 162 | |
| 163 class NumbersWidget(QWidget, Ui_NumbersWidget): | |
| 164 """ | |
| 165 Class implementing a widget to show numbers in different formats. | |
| 166 | |
| 167 @signal insertNumber(str) emitted after the user has entered a number | |
| 168 and selected the number format | |
| 169 """ | |
| 170 insertNumber = pyqtSignal(str) | |
| 171 | |
| 172 def __init__(self, parent=None): | |
| 173 """ | |
| 174 Constructor | |
| 175 | |
| 176 @param parent reference to the parent widget (QWidget) | |
| 177 """ | |
| 178 super().__init__(parent) | |
| 179 self.setupUi(self) | |
| 180 | |
| 181 self.setWindowIcon(UI.PixmapCache.getIcon("eric")) | |
| 182 | |
| 183 self.__badNumberSheet = "background-color: #ffa0a0;" | |
| 184 | |
| 185 self.binInButton.setIcon(UI.PixmapCache.getIcon("2downarrow")) | |
| 186 self.binOutButton.setIcon(UI.PixmapCache.getIcon("2uparrow")) | |
| 187 self.octInButton.setIcon(UI.PixmapCache.getIcon("2downarrow")) | |
| 188 self.octOutButton.setIcon(UI.PixmapCache.getIcon("2uparrow")) | |
| 189 self.decInButton.setIcon(UI.PixmapCache.getIcon("2downarrow")) | |
| 190 self.decOutButton.setIcon(UI.PixmapCache.getIcon("2uparrow")) | |
| 191 self.hexInButton.setIcon(UI.PixmapCache.getIcon("2downarrow")) | |
| 192 self.hexOutButton.setIcon(UI.PixmapCache.getIcon("2uparrow")) | |
| 193 | |
| 194 self.formatBox.addItem(self.tr("Auto"), 0) | |
| 195 self.formatBox.addItem(self.tr("Dec"), 10) | |
| 196 self.formatBox.addItem(self.tr("Hex"), 16) | |
| 197 self.formatBox.addItem(self.tr("Oct"), 8) | |
| 198 self.formatBox.addItem(self.tr("Bin"), 2) | |
| 199 | |
| 200 self.sizeBox.addItem("8", 8) | |
| 201 self.sizeBox.addItem("16", 16) | |
| 202 self.sizeBox.addItem("32", 32) | |
| 203 self.sizeBox.addItem("64", 64) | |
| 204 | |
| 205 self.__input = 0 | |
| 206 self.__inputValid = True | |
| 207 self.__bytes = 1 | |
| 208 | |
| 209 self.__model = BinaryModel(self) | |
| 210 self.binTable.setModel(self.__model) | |
| 211 self.binTable.horizontalHeader().setSectionResizeMode( | |
| 212 QHeaderView.ResizeMode.ResizeToContents) | |
| 213 self.__model.setBitsAndValue(self.__bytes * 8, self.__input) | |
| 214 self.__model.dataChanged.connect(self.__binModelDataChanged) | |
| 215 | |
| 216 def __formatNumbers(self, numberFormat): | |
| 217 """ | |
| 218 Private method to format the various number inputs. | |
| 219 | |
| 220 @param numberFormat number format indicator (integer) | |
| 221 """ | |
| 222 self.__block(True) | |
| 223 | |
| 224 self.binEdit.setStyleSheet("") | |
| 225 self.octEdit.setStyleSheet("") | |
| 226 self.decEdit.setStyleSheet("") | |
| 227 self.hexEdit.setStyleSheet("") | |
| 228 | |
| 229 # determine byte count | |
| 230 byteCount = 8 | |
| 231 tmp = self.__input | |
| 232 for _ in range(8): | |
| 233 c = (tmp & 0xff00000000000000) >> 7 * 8 | |
| 234 if c != 0 and self.__input >= 0: | |
| 235 break | |
| 236 if c != 0xff and self.__input < 0: | |
| 237 break | |
| 238 tmp <<= 8 | |
| 239 byteCount -= 1 | |
| 240 if byteCount == 0: | |
| 241 byteCount = 1 | |
| 242 self.__bytes = byteCount | |
| 243 | |
| 244 bytesIn = self.sizeBox.itemData(self.sizeBox.currentIndex()) // 8 | |
| 245 if bytesIn and byteCount > bytesIn: | |
| 246 self.sizeBox.setStyleSheet(self.__badNumberSheet) | |
| 247 else: | |
| 248 self.sizeBox.setStyleSheet("") | |
| 249 | |
| 250 # octal | |
| 251 if numberFormat != 8: | |
| 252 self.octEdit.setText("{0:0{1}o}".format(self.__input, bytesIn * 3)) | |
| 253 | |
| 254 # decimal | |
| 255 if numberFormat != 10: | |
| 256 self.decEdit.setText("{0:d}".format(self.__input)) | |
| 257 | |
| 258 # hexadecimal | |
| 259 if numberFormat != 16: | |
| 260 self.hexEdit.setText("{0:0{1}x}".format(self.__input, bytesIn * 2)) | |
| 261 | |
| 262 # octal | |
| 263 if numberFormat != 8: | |
| 264 self.octEdit.setText("{0:0{1}o}".format(self.__input, bytesIn * 3)) | |
| 265 | |
| 266 # binary | |
| 267 if numberFormat != 2: | |
| 268 num = "{0:0{1}b}".format(self.__input, bytesIn * 8) | |
| 269 self.binEdit.setText(num) | |
| 270 | |
| 271 self.__model.setBitsAndValue(len(self.binEdit.text()), self.__input) | |
| 272 | |
| 273 self.__block(False) | |
| 274 | |
| 275 def __block(self, b): | |
| 276 """ | |
| 277 Private slot to block some signals. | |
| 278 | |
| 279 @param b flah indicating the blocking state (boolean) | |
| 280 """ | |
| 281 self.hexEdit.blockSignals(b) | |
| 282 self.decEdit.blockSignals(b) | |
| 283 self.octEdit.blockSignals(b) | |
| 284 self.binEdit.blockSignals(b) | |
| 285 self.binTable.blockSignals(b) | |
| 286 | |
| 287 @pyqtSlot(int) | |
| 288 def on_sizeBox_valueChanged(self, value): | |
| 289 """ | |
| 290 Private slot handling a change of the bit size. | |
| 291 | |
| 292 @param value selected bit size (integer) | |
| 293 """ | |
| 294 self.__formatNumbers(10) | |
| 295 | |
| 296 @pyqtSlot() | |
| 297 def on_byteOrderButton_clicked(self): | |
| 298 """ | |
| 299 Private slot to swap the byte order. | |
| 300 """ | |
| 301 bytesIn = self.sizeBox.itemData(self.sizeBox.currentIndex()) // 8 | |
| 302 if bytesIn == 0: | |
| 303 bytesIn = self.__bytes | |
| 304 | |
| 305 tmp1 = self.__input | |
| 306 tmp2 = 0 | |
| 307 for _ in range(bytesIn): | |
| 308 tmp2 <<= 8 | |
| 309 tmp2 |= tmp1 & 0xff | |
| 310 tmp1 >>= 8 | |
| 311 | |
| 312 self.__input = tmp2 | |
| 313 self.__formatNumbers(0) | |
| 314 | |
| 315 @pyqtSlot() | |
| 316 def on_binInButton_clicked(self): | |
| 317 """ | |
| 318 Private slot to retrieve a binary number from the current editor. | |
| 319 """ | |
| 320 number = e5App().getObject("ViewManager").getNumber() | |
| 321 if number == "": | |
| 322 return | |
| 323 | |
| 324 self.binEdit.setText(number) | |
| 325 self.binEdit.setFocus() | |
| 326 | |
| 327 @pyqtSlot(str) | |
| 328 def on_binEdit_textChanged(self, txt): | |
| 329 """ | |
| 330 Private slot to handle input of a binary number. | |
| 331 | |
| 332 @param txt text entered (string) | |
| 333 """ | |
| 334 try: | |
| 335 self.__input = int(txt, 2) | |
| 336 self.__inputValid = True | |
| 337 except ValueError: | |
| 338 self.__inputValid = False | |
| 339 | |
| 340 if self.__inputValid: | |
| 341 self.__formatNumbers(2) | |
| 342 else: | |
| 343 self.binEdit.setStyleSheet(self.__badNumberSheet) | |
| 344 | |
| 345 @pyqtSlot() | |
| 346 def on_binOutButton_clicked(self): | |
| 347 """ | |
| 348 Private slot to send a binary number. | |
| 349 """ | |
| 350 self.insertNumber.emit(self.binEdit.text()) | |
| 351 | |
| 352 def __binModelDataChanged(self, start, end): | |
| 353 """ | |
| 354 Private slot to handle a change of the binary model value by the user. | |
| 355 | |
| 356 @param start start index (QModelIndex) | |
| 357 @param end end index (QModelIndex) | |
| 358 """ | |
| 359 val = self.__model.getValue() | |
| 360 bytesIn = self.sizeBox.itemData(self.sizeBox.currentIndex()) // 8 | |
| 361 num = "{0:0{1}b}".format(val, bytesIn * 8) | |
| 362 self.binEdit.setText(num) | |
| 363 | |
| 364 @pyqtSlot() | |
| 365 def on_octInButton_clicked(self): | |
| 366 """ | |
| 367 Private slot to retrieve an octal number from the current editor. | |
| 368 """ | |
| 369 number = e5App().getObject("ViewManager").getNumber() | |
| 370 if number == "": | |
| 371 return | |
| 372 | |
| 373 self.octEdit.setText(number) | |
| 374 self.octEdit.setFocus() | |
| 375 | |
| 376 @pyqtSlot(str) | |
| 377 def on_octEdit_textChanged(self, txt): | |
| 378 """ | |
| 379 Private slot to handle input of an octal number. | |
| 380 | |
| 381 @param txt text entered (string) | |
| 382 """ | |
| 383 try: | |
| 384 self.__input = int(txt, 8) | |
| 385 self.__inputValid = True | |
| 386 except ValueError: | |
| 387 self.__inputValid = False | |
| 388 | |
| 389 if self.__inputValid: | |
| 390 self.__formatNumbers(8) | |
| 391 else: | |
| 392 self.octEdit.setStyleSheet(self.__badNumberSheet) | |
| 393 | |
| 394 @pyqtSlot() | |
| 395 def on_octOutButton_clicked(self): | |
| 396 """ | |
| 397 Private slot to send an octal number. | |
| 398 """ | |
| 399 self.insertNumber.emit(self.octEdit.text()) | |
| 400 | |
| 401 @pyqtSlot() | |
| 402 def on_decInButton_clicked(self): | |
| 403 """ | |
| 404 Private slot to retrieve a decimal number from the current editor. | |
| 405 """ | |
| 406 number = e5App().getObject("ViewManager").getNumber() | |
| 407 if number == "": | |
| 408 return | |
| 409 | |
| 410 self.decEdit.setText(number) | |
| 411 self.decEdit.setFocus() | |
| 412 | |
| 413 @pyqtSlot(str) | |
| 414 def on_decEdit_textChanged(self, txt): | |
| 415 """ | |
| 416 Private slot to handle input of a decimal number. | |
| 417 | |
| 418 @param txt text entered (string) | |
| 419 """ | |
| 420 try: | |
| 421 self.__input = int(txt, 10) | |
| 422 self.__inputValid = True | |
| 423 except ValueError: | |
| 424 self.__inputValid = False | |
| 425 | |
| 426 if self.__inputValid: | |
| 427 self.__formatNumbers(10) | |
| 428 else: | |
| 429 self.decEdit.setStyleSheet(self.__badNumberSheet) | |
| 430 | |
| 431 @pyqtSlot() | |
| 432 def on_decOutButton_clicked(self): | |
| 433 """ | |
| 434 Private slot to send a decimal number. | |
| 435 """ | |
| 436 self.insertNumber.emit(self.decEdit.text()) | |
| 437 | |
| 438 @pyqtSlot() | |
| 439 def on_hexInButton_clicked(self): | |
| 440 """ | |
| 441 Private slot to retrieve a hexadecimal number from the current editor. | |
| 442 """ | |
| 443 number = e5App().getObject("ViewManager").getNumber() | |
| 444 if number == "": | |
| 445 return | |
| 446 | |
| 447 self.hexEdit.setText(number) | |
| 448 self.hexEdit.setFocus() | |
| 449 | |
| 450 @pyqtSlot(str) | |
| 451 def on_hexEdit_textChanged(self, txt): | |
| 452 """ | |
| 453 Private slot to handle input of a hexadecimal number. | |
| 454 | |
| 455 @param txt text entered (string) | |
| 456 """ | |
| 457 try: | |
| 458 self.__input = int(txt, 16) | |
| 459 self.__inputValid = True | |
| 460 except ValueError: | |
| 461 self.__inputValid = False | |
| 462 | |
| 463 if self.__inputValid: | |
| 464 self.__formatNumbers(16) | |
| 465 else: | |
| 466 self.hexEdit.setStyleSheet(self.__badNumberSheet) | |
| 467 | |
| 468 @pyqtSlot() | |
| 469 def on_hexOutButton_clicked(self): | |
| 470 """ | |
| 471 Private slot to send a hexadecimal number. | |
| 472 """ | |
| 473 self.insertNumber.emit(self.hexEdit.text()) |
