Mercurial Repositories > eric / file comparison
comparison: eric7/Debugger/WatchPointModel.py
eric7/Debugger/WatchPointModel.py
- branch
- eric7
- changeset 8312
- 800c432b34c8
- parent 8222
- 5994b80b8760
- child 8318
- 962bce857696
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| 8311:4e8b98454baa | 8312:800c432b34c8 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2006 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the Watch expression model. | |
| 8 """ | |
| 9 | |
| 10 import copy | |
| 11 | |
| 12 from PyQt5.QtCore import pyqtSignal, Qt, QAbstractItemModel, QModelIndex | |
| 13 | |
| 14 | |
| 15 class WatchPointModel(QAbstractItemModel): | |
| 16 """ | |
| 17 Class implementing a custom model for watch expressions. | |
| 18 | |
| 19 @signal dataAboutToBeChanged(QModelIndex, QModelIndex) emitted to indicate | |
| 20 a change of the data | |
| 21 """ | |
| 22 dataAboutToBeChanged = pyqtSignal(QModelIndex, QModelIndex) | |
| 23 | |
| 24 def __init__(self, parent=None): | |
| 25 """ | |
| 26 Constructor | |
| 27 | |
| 28 @param parent reference to the parent widget (QObject) | |
| 29 """ | |
| 30 super().__init__(parent) | |
| 31 | |
| 32 self.watchpoints = [] | |
| 33 self.header = [ | |
| 34 self.tr("Condition"), | |
| 35 self.tr("Special"), | |
| 36 self.tr('Temporary'), | |
| 37 self.tr('Enabled'), | |
| 38 self.tr('Ignore Count'), | |
| 39 ] | |
| 40 self.alignments = [Qt.Alignment(Qt.AlignmentFlag.AlignLeft), | |
| 41 Qt.Alignment(Qt.AlignmentFlag.AlignLeft), | |
| 42 Qt.Alignment(Qt.AlignmentFlag.AlignHCenter), | |
| 43 Qt.Alignment(Qt.AlignmentFlag.AlignHCenter), | |
| 44 Qt.Alignment(Qt.AlignmentFlag.AlignRight), | |
| 45 ] | |
| 46 | |
| 47 def columnCount(self, parent=None): | |
| 48 """ | |
| 49 Public method to get the current column count. | |
| 50 | |
| 51 @param parent index of the parent item (QModelIndex) (Unused) | |
| 52 @return column count (integer) | |
| 53 """ | |
| 54 return len(self.header) | |
| 55 | |
| 56 def rowCount(self, parent=None): | |
| 57 """ | |
| 58 Public method to get the current row count. | |
| 59 | |
| 60 @param parent index of the parent item (QModelIndex) | |
| 61 @return row count (integer) | |
| 62 """ | |
| 63 # we do not have a tree, parent should always be invalid | |
| 64 if parent is None or not parent.isValid(): | |
| 65 return len(self.watchpoints) | |
| 66 else: | |
| 67 return 0 | |
| 68 | |
| 69 def data(self, index, role): | |
| 70 """ | |
| 71 Public method to get the requested data. | |
| 72 | |
| 73 @param index index of the requested data (QModelIndex) | |
| 74 @param role role of the requested data (Qt.ItemDataRole) | |
| 75 @return the requested data | |
| 76 """ | |
| 77 if not index.isValid(): | |
| 78 return None | |
| 79 | |
| 80 if ( | |
| 81 role == Qt.ItemDataRole.DisplayRole and | |
| 82 index.column() in [0, 1, 4] | |
| 83 ): | |
| 84 return self.watchpoints[index.row()][index.column()] | |
| 85 | |
| 86 if ( | |
| 87 role == Qt.ItemDataRole.CheckStateRole and | |
| 88 index.column() in [2, 3] | |
| 89 ): | |
| 90 return self.watchpoints[index.row()][index.column()] | |
| 91 | |
| 92 if ( | |
| 93 role == Qt.ItemDataRole.ToolTipRole and | |
| 94 index.column() in [0, 1] | |
| 95 ): | |
| 96 return self.watchpoints[index.row()][index.column()] | |
| 97 | |
| 98 if ( | |
| 99 role == Qt.ItemDataRole.TextAlignmentRole and | |
| 100 index.column() < len(self.alignments) | |
| 101 ): | |
| 102 return self.alignments[index.column()] | |
| 103 | |
| 104 return None | |
| 105 | |
| 106 def flags(self, index): | |
| 107 """ | |
| 108 Public method to get item flags. | |
| 109 | |
| 110 @param index index of the requested flags (QModelIndex) | |
| 111 @return item flags for the given index (Qt.ItemFlags) | |
| 112 """ | |
| 113 if not index.isValid(): | |
| 114 return Qt.ItemFlag.ItemIsEnabled | |
| 115 | |
| 116 return Qt.ItemFlag.ItemIsEnabled | Qt.ItemFlag.ItemIsSelectable | |
| 117 | |
| 118 def headerData(self, section, orientation, | |
| 119 role=Qt.ItemDataRole.DisplayRole): | |
| 120 """ | |
| 121 Public method to get header data. | |
| 122 | |
| 123 @param section section number of the requested header data (integer) | |
| 124 @param orientation orientation of the header (Qt.Orientation) | |
| 125 @param role role of the requested data (Qt.ItemDataRole) | |
| 126 @return header data | |
| 127 """ | |
| 128 if ( | |
| 129 orientation == Qt.Orientation.Horizontal and | |
| 130 role == Qt.ItemDataRole.DisplayRole | |
| 131 ): | |
| 132 if section >= len(self.header): | |
| 133 return "" | |
| 134 else: | |
| 135 return self.header[section] | |
| 136 | |
| 137 return None | |
| 138 | |
| 139 def index(self, row, column, parent=None): | |
| 140 """ | |
| 141 Public method to create an index. | |
| 142 | |
| 143 @param row row number for the index (integer) | |
| 144 @param column column number for the index (integer) | |
| 145 @param parent index of the parent item (QModelIndex) | |
| 146 @return requested index (QModelIndex) | |
| 147 """ | |
| 148 if ( | |
| 149 (parent and parent.isValid()) or | |
| 150 row < 0 or | |
| 151 row >= len(self.watchpoints) or | |
| 152 column < 0 or | |
| 153 column >= len(self.header) | |
| 154 ): | |
| 155 return QModelIndex() | |
| 156 | |
| 157 return self.createIndex(row, column, self.watchpoints[row]) | |
| 158 | |
| 159 def parent(self, index): | |
| 160 """ | |
| 161 Public method to get the parent index. | |
| 162 | |
| 163 @param index index of item to get parent (QModelIndex) | |
| 164 @return index of parent (QModelIndex) | |
| 165 """ | |
| 166 return QModelIndex() | |
| 167 | |
| 168 def hasChildren(self, parent=None): | |
| 169 """ | |
| 170 Public method to check for the presence of child items. | |
| 171 | |
| 172 @param parent index of parent item (QModelIndex) | |
| 173 @return flag indicating the presence of child items (boolean) | |
| 174 """ | |
| 175 if parent is None or not parent.isValid(): | |
| 176 return len(self.watchpoints) > 0 | |
| 177 else: | |
| 178 return False | |
| 179 | |
| 180 ########################################################################### | |
| 181 | |
| 182 def addWatchPoint(self, cond, special, properties): | |
| 183 """ | |
| 184 Public method to add a new watch expression to the list. | |
| 185 | |
| 186 @param cond expression of the watch expression | |
| 187 @type str | |
| 188 @param special special condition of the watch expression | |
| 189 @type str | |
| 190 @param properties properties of the watch expression | |
| 191 (tuple of temporary flag, enabled flag, ignore count) | |
| 192 @type tuple of (bool, bool, int) | |
| 193 """ | |
| 194 wp = [cond, special] + list(properties) | |
| 195 cnt = len(self.watchpoints) | |
| 196 self.beginInsertRows(QModelIndex(), cnt, cnt) | |
| 197 self.watchpoints.append(wp) | |
| 198 self.endInsertRows() | |
| 199 | |
| 200 def addWatchPoints(self, watchpoints): | |
| 201 """ | |
| 202 Public method to add multiple watch expressions to the list. | |
| 203 | |
| 204 @param watchpoints list of watch expressions with expression, special | |
| 205 condition, temporary flag, enabled flag and ignore count each | |
| 206 @type list of (str, str, bool, bool, int) | |
| 207 """ | |
| 208 cnt = len(self.watchpoints) | |
| 209 self.beginInsertRows(QModelIndex(), cnt, cnt + len(watchpoints) - 1) | |
| 210 self.watchpoints += watchpoints | |
| 211 self.endInsertRows() | |
| 212 | |
| 213 def setWatchPointByIndex(self, index, cond, special, properties): | |
| 214 """ | |
| 215 Public method to set the values of a watch expression given by index. | |
| 216 | |
| 217 @param index index of the watch expression (QModelIndex) | |
| 218 @param cond expression of the watch expression (string) | |
| 219 @param special special condition of the watch expression (string) | |
| 220 @param properties properties of the watch expression | |
| 221 (tuple of temporary flag (bool), enabled flag (bool), | |
| 222 ignore count (integer)) | |
| 223 """ | |
| 224 if index.isValid(): | |
| 225 row = index.row() | |
| 226 index1 = self.createIndex(row, 0, self.watchpoints[row]) | |
| 227 index2 = self.createIndex( | |
| 228 row, len(self.watchpoints[row]), self.watchpoints[row]) | |
| 229 self.dataAboutToBeChanged.emit(index1, index2) | |
| 230 self.watchpoints[row] = [cond, special] + list(properties) | |
| 231 self.dataChanged.emit(index1, index2) | |
| 232 | |
| 233 def setWatchPointEnabledByIndex(self, index, enabled): | |
| 234 """ | |
| 235 Public method to set the enabled state of a watch expression given by | |
| 236 index. | |
| 237 | |
| 238 @param index index of the watch expression (QModelIndex) | |
| 239 @param enabled flag giving the enabled state (boolean) | |
| 240 """ | |
| 241 if index.isValid(): | |
| 242 row = index.row() | |
| 243 col = 3 | |
| 244 index1 = self.createIndex(row, col, self.watchpoints[row]) | |
| 245 self.dataAboutToBeChanged.emit(index1, index1) | |
| 246 self.watchpoints[row][col] = enabled | |
| 247 self.dataChanged.emit(index1, index1) | |
| 248 | |
| 249 def deleteWatchPointByIndex(self, index): | |
| 250 """ | |
| 251 Public method to set the values of a watch expression given by index. | |
| 252 | |
| 253 @param index index of the watch expression (QModelIndex) | |
| 254 """ | |
| 255 if index.isValid(): | |
| 256 row = index.row() | |
| 257 self.beginRemoveRows(QModelIndex(), row, row) | |
| 258 del self.watchpoints[row] | |
| 259 self.endRemoveRows() | |
| 260 | |
| 261 def deleteWatchPoints(self, idxList): | |
| 262 """ | |
| 263 Public method to delete a list of watch expressions given by their | |
| 264 indexes. | |
| 265 | |
| 266 @param idxList list of watch expression indexes (list of QModelIndex) | |
| 267 """ | |
| 268 rows = [] | |
| 269 for index in idxList: | |
| 270 if index.isValid(): | |
| 271 rows.append(index.row()) | |
| 272 rows.sort(reverse=True) | |
| 273 for row in rows: | |
| 274 if row < len(self.breakpoints): | |
| 275 self.beginRemoveRows(QModelIndex(), row, row) | |
| 276 del self.watchpoints[row] | |
| 277 self.endRemoveRows() | |
| 278 | |
| 279 def deleteAll(self): | |
| 280 """ | |
| 281 Public method to delete all watch expressions. | |
| 282 """ | |
| 283 if self.watchpoints: | |
| 284 self.beginRemoveRows(QModelIndex(), 0, len(self.watchpoints) - 1) | |
| 285 self.watchpoints = [] | |
| 286 self.endRemoveRows() | |
| 287 | |
| 288 def getWatchPointByIndex(self, index): | |
| 289 """ | |
| 290 Public method to get the values of a watch expression given by index. | |
| 291 | |
| 292 @param index index of the watch expression (QModelIndex) | |
| 293 @return watch expression (list of six values (expression, | |
| 294 special condition, temporary flag, enabled flag, ignore count)) | |
| 295 @rtype tuple of (str, str, bool, bool, int) | |
| 296 """ | |
| 297 if index.isValid(): | |
| 298 return self.watchpoints[index.row()][:] # return a copy | |
| 299 else: | |
| 300 return [] | |
| 301 | |
| 302 def getAllWatchpoints(self): | |
| 303 """ | |
| 304 Public method to get the list of watchpoints. | |
| 305 | |
| 306 @return list of watchpoints | |
| 307 @rtype list of list of [str, str, bool, bool, int] | |
| 308 """ | |
| 309 return copy.deepcopy(self.watchpoints) | |
| 310 | |
| 311 def getWatchPointIndex(self, cond, special=""): | |
| 312 """ | |
| 313 Public method to get the index of a watch expression given by | |
| 314 expression. | |
| 315 | |
| 316 @param cond expression of the watch expression (string) | |
| 317 @param special special condition of the watch expression (string) | |
| 318 @return index (QModelIndex) | |
| 319 """ | |
| 320 for row in range(len(self.watchpoints)): | |
| 321 wp = self.watchpoints[row] | |
| 322 if wp[0] == cond: | |
| 323 if special and wp[1] != special: | |
| 324 continue | |
| 325 return self.createIndex(row, 0, self.watchpoints[row]) | |
| 326 | |
| 327 return QModelIndex() |
