Mercurial Repositories > eric / file comparison
comparison: eric6/Debugger/WatchPointModel.py
eric6/Debugger/WatchPointModel.py
- changeset 6942
- 2602857055c5
- parent 6645
- ad476851d7e0
- child 7025
- 83e110e3fcc6
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| 6941:f99d60d6b59b | 6942:2602857055c5 |
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2006 - 2019 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the Watch expression model. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 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(WatchPointModel, self).__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.AlignLeft), | |
| 41 Qt.Alignment(Qt.AlignLeft), | |
| 42 Qt.Alignment(Qt.AlignHCenter), | |
| 43 Qt.Alignment(Qt.AlignHCenter), | |
| 44 Qt.Alignment(Qt.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 role == Qt.DisplayRole: | |
| 81 if index.column() in [0, 1, 4]: | |
| 82 return self.watchpoints[index.row()][index.column()] | |
| 83 | |
| 84 if role == Qt.CheckStateRole: | |
| 85 if index.column() in [2, 3]: | |
| 86 return self.watchpoints[index.row()][index.column()] | |
| 87 | |
| 88 if role == Qt.ToolTipRole: | |
| 89 if index.column() in [0, 1]: | |
| 90 return self.watchpoints[index.row()][index.column()] | |
| 91 | |
| 92 if role == Qt.TextAlignmentRole: | |
| 93 if index.column() < len(self.alignments): | |
| 94 return self.alignments[index.column()] | |
| 95 | |
| 96 return None | |
| 97 | |
| 98 def flags(self, index): | |
| 99 """ | |
| 100 Public method to get item flags. | |
| 101 | |
| 102 @param index index of the requested flags (QModelIndex) | |
| 103 @return item flags for the given index (Qt.ItemFlags) | |
| 104 """ | |
| 105 if not index.isValid(): | |
| 106 return Qt.ItemIsEnabled | |
| 107 | |
| 108 return Qt.ItemIsEnabled | Qt.ItemIsSelectable | |
| 109 | |
| 110 def headerData(self, section, orientation, role=Qt.DisplayRole): | |
| 111 """ | |
| 112 Public method to get header data. | |
| 113 | |
| 114 @param section section number of the requested header data (integer) | |
| 115 @param orientation orientation of the header (Qt.Orientation) | |
| 116 @param role role of the requested data (Qt.ItemDataRole) | |
| 117 @return header data | |
| 118 """ | |
| 119 if orientation == Qt.Horizontal and role == Qt.DisplayRole: | |
| 120 if section >= len(self.header): | |
| 121 return "" | |
| 122 else: | |
| 123 return self.header[section] | |
| 124 | |
| 125 return None | |
| 126 | |
| 127 def index(self, row, column, parent=None): | |
| 128 """ | |
| 129 Public method to create an index. | |
| 130 | |
| 131 @param row row number for the index (integer) | |
| 132 @param column column number for the index (integer) | |
| 133 @param parent index of the parent item (QModelIndex) | |
| 134 @return requested index (QModelIndex) | |
| 135 """ | |
| 136 if (parent and parent.isValid()) or \ | |
| 137 row < 0 or row >= len(self.watchpoints) or \ | |
| 138 column < 0 or column >= len(self.header): | |
| 139 return QModelIndex() | |
| 140 | |
| 141 return self.createIndex(row, column, self.watchpoints[row]) | |
| 142 | |
| 143 def parent(self, index): | |
| 144 """ | |
| 145 Public method to get the parent index. | |
| 146 | |
| 147 @param index index of item to get parent (QModelIndex) | |
| 148 @return index of parent (QModelIndex) | |
| 149 """ | |
| 150 return QModelIndex() | |
| 151 | |
| 152 def hasChildren(self, parent=None): | |
| 153 """ | |
| 154 Public method to check for the presence of child items. | |
| 155 | |
| 156 @param parent index of parent item (QModelIndex) | |
| 157 @return flag indicating the presence of child items (boolean) | |
| 158 """ | |
| 159 if parent is None or not parent.isValid(): | |
| 160 return len(self.watchpoints) > 0 | |
| 161 else: | |
| 162 return False | |
| 163 | |
| 164 ########################################################################### | |
| 165 | |
| 166 def addWatchPoint(self, cond, special, properties): | |
| 167 """ | |
| 168 Public method to add a new watch expression to the list. | |
| 169 | |
| 170 @param cond expression of the watch expression (string) | |
| 171 @param special special condition of the watch expression (string) | |
| 172 @param properties properties of the watch expression | |
| 173 (tuple of temporary flag (bool), enabled flag (bool), | |
| 174 ignore count (integer)) | |
| 175 """ | |
| 176 wp = [cond, special] + list(properties) | |
| 177 cnt = len(self.watchpoints) | |
| 178 self.beginInsertRows(QModelIndex(), cnt, cnt) | |
| 179 self.watchpoints.append(wp) | |
| 180 self.endInsertRows() | |
| 181 | |
| 182 def setWatchPointByIndex(self, index, cond, special, properties): | |
| 183 """ | |
| 184 Public method to set the values of a watch expression given by index. | |
| 185 | |
| 186 @param index index of the watch expression (QModelIndex) | |
| 187 @param cond expression of the watch expression (string) | |
| 188 @param special special condition of the watch expression (string) | |
| 189 @param properties properties of the watch expression | |
| 190 (tuple of temporary flag (bool), enabled flag (bool), | |
| 191 ignore count (integer)) | |
| 192 """ | |
| 193 if index.isValid(): | |
| 194 row = index.row() | |
| 195 index1 = self.createIndex(row, 0, self.watchpoints[row]) | |
| 196 index2 = self.createIndex( | |
| 197 row, len(self.watchpoints[row]), self.watchpoints[row]) | |
| 198 self.dataAboutToBeChanged.emit(index1, index2) | |
| 199 i = 0 | |
| 200 for value in [cond, special] + list(properties): | |
| 201 self.watchpoints[row][i] = value | |
| 202 i += 1 | |
| 203 self.dataChanged.emit(index1, index2) | |
| 204 | |
| 205 def setWatchPointEnabledByIndex(self, index, enabled): | |
| 206 """ | |
| 207 Public method to set the enabled state of a watch expression given by | |
| 208 index. | |
| 209 | |
| 210 @param index index of the watch expression (QModelIndex) | |
| 211 @param enabled flag giving the enabled state (boolean) | |
| 212 """ | |
| 213 if index.isValid(): | |
| 214 row = index.row() | |
| 215 col = 3 | |
| 216 index1 = self.createIndex(row, col, self.watchpoints[row]) | |
| 217 self.dataAboutToBeChanged.emit(index1, index1) | |
| 218 self.watchpoints[row][col] = enabled | |
| 219 self.dataChanged.emit(index1, index1) | |
| 220 | |
| 221 def deleteWatchPointByIndex(self, index): | |
| 222 """ | |
| 223 Public method to set the values of a watch expression given by index. | |
| 224 | |
| 225 @param index index of the watch expression (QModelIndex) | |
| 226 """ | |
| 227 if index.isValid(): | |
| 228 row = index.row() | |
| 229 self.beginRemoveRows(QModelIndex(), row, row) | |
| 230 del self.watchpoints[row] | |
| 231 self.endRemoveRows() | |
| 232 | |
| 233 def deleteWatchPoints(self, idxList): | |
| 234 """ | |
| 235 Public method to delete a list of watch expressions given by their | |
| 236 indexes. | |
| 237 | |
| 238 @param idxList list of watch expression indexes (list of QModelIndex) | |
| 239 """ | |
| 240 rows = [] | |
| 241 for index in idxList: | |
| 242 if index.isValid(): | |
| 243 rows.append(index.row()) | |
| 244 rows.sort(reverse=True) | |
| 245 for row in rows: | |
| 246 self.beginRemoveRows(QModelIndex(), row, row) | |
| 247 del self.watchpoints[row] | |
| 248 self.endRemoveRows() | |
| 249 | |
| 250 def deleteAll(self): | |
| 251 """ | |
| 252 Public method to delete all watch expressions. | |
| 253 """ | |
| 254 if self.watchpoints: | |
| 255 self.beginRemoveRows(QModelIndex(), 0, len(self.watchpoints) - 1) | |
| 256 self.watchpoints = [] | |
| 257 self.endRemoveRows() | |
| 258 | |
| 259 def getWatchPointByIndex(self, index): | |
| 260 """ | |
| 261 Public method to get the values of a watch expression given by index. | |
| 262 | |
| 263 @param index index of the watch expression (QModelIndex) | |
| 264 @return watch expression (list of six values (expression, | |
| 265 special condition, temporary flag, enabled flag, ignore count, | |
| 266 index)) | |
| 267 """ | |
| 268 if index.isValid(): | |
| 269 return self.watchpoints[index.row()][:] # return a copy | |
| 270 else: | |
| 271 return [] | |
| 272 | |
| 273 def getWatchPointIndex(self, cond, special=""): | |
| 274 """ | |
| 275 Public method to get the index of a watch expression given by | |
| 276 expression. | |
| 277 | |
| 278 @param cond expression of the watch expression (string) | |
| 279 @param special special condition of the watch expression (string) | |
| 280 @return index (QModelIndex) | |
| 281 """ | |
| 282 for row in range(len(self.watchpoints)): | |
| 283 wp = self.watchpoints[row] | |
| 284 if wp[0] == cond: | |
| 285 if special and wp[1] != special: | |
| 286 continue | |
| 287 return self.createIndex(row, 0, self.watchpoints[row]) | |
| 288 | |
| 289 return QModelIndex() |
