Mercurial Repositories > eric / file comparison
comparison: eric6/Debugger/BreakPointModel.py
eric6/Debugger/BreakPointModel.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 Breakpoint model. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 from PyQt5.QtCore import pyqtSignal, Qt, QAbstractItemModel, QModelIndex | |
| 13 | |
| 14 | |
| 15 class BreakPointModel(QAbstractItemModel): | |
| 16 """ | |
| 17 Class implementing a custom model for breakpoints. | |
| 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(BreakPointModel, self).__init__(parent) | |
| 31 | |
| 32 self.breakpoints = [] | |
| 33 self.header = [ | |
| 34 self.tr("Filename"), | |
| 35 self.tr("Line"), | |
| 36 self.tr('Condition'), | |
| 37 self.tr('Temporary'), | |
| 38 self.tr('Enabled'), | |
| 39 self.tr('Ignore Count'), | |
| 40 ] | |
| 41 self.alignments = [Qt.Alignment(Qt.AlignLeft), | |
| 42 Qt.Alignment(Qt.AlignRight), | |
| 43 Qt.Alignment(Qt.AlignLeft), | |
| 44 Qt.Alignment(Qt.AlignHCenter), | |
| 45 Qt.Alignment(Qt.AlignHCenter), | |
| 46 Qt.Alignment(Qt.AlignRight), | |
| 47 Qt.Alignment(Qt.AlignHCenter), | |
| 48 ] | |
| 49 | |
| 50 def columnCount(self, parent=None): | |
| 51 """ | |
| 52 Public method to get the current column count. | |
| 53 | |
| 54 @param parent reference to parent index (QModelIndex) (Unused) | |
| 55 @return column count (integer) | |
| 56 """ | |
| 57 return len(self.header) | |
| 58 | |
| 59 def rowCount(self, parent=None): | |
| 60 """ | |
| 61 Public method to get the current row count. | |
| 62 | |
| 63 @param parent reference to parent index (QModelIndex) | |
| 64 @return row count (integer) | |
| 65 """ | |
| 66 # we do not have a tree, parent should always be invalid | |
| 67 if parent is None or not parent.isValid(): | |
| 68 return len(self.breakpoints) | |
| 69 else: | |
| 70 return 0 | |
| 71 | |
| 72 def data(self, index, role=Qt.DisplayRole): | |
| 73 """ | |
| 74 Public method to get the requested data. | |
| 75 | |
| 76 @param index index of the requested data (QModelIndex) | |
| 77 @param role role of the requested data (Qt.ItemDataRole) | |
| 78 @return the requested data | |
| 79 """ | |
| 80 if not index.isValid(): | |
| 81 return None | |
| 82 | |
| 83 if role == Qt.DisplayRole: | |
| 84 if index.column() in [0, 1, 2, 5]: | |
| 85 return self.breakpoints[index.row()][index.column()] | |
| 86 | |
| 87 if role == Qt.CheckStateRole: | |
| 88 if index.column() in [3, 4]: | |
| 89 return self.breakpoints[index.row()][index.column()] | |
| 90 | |
| 91 if role == Qt.ToolTipRole: | |
| 92 if index.column() in [0, 2]: | |
| 93 return self.breakpoints[index.row()][index.column()] | |
| 94 | |
| 95 if role == Qt.TextAlignmentRole: | |
| 96 if index.column() < len(self.alignments): | |
| 97 return self.alignments[index.column()] | |
| 98 | |
| 99 return None | |
| 100 | |
| 101 def setData(self, index, value, role=Qt.EditRole): | |
| 102 """ | |
| 103 Public method to change data in the model. | |
| 104 | |
| 105 @param index index of the changed data (QModelIndex) | |
| 106 @param value value of the changed data | |
| 107 @param role role of the changed data (Qt.ItemDataRole) | |
| 108 @return flag indicating success (boolean) | |
| 109 """ | |
| 110 if not index.isValid() or \ | |
| 111 index.column() >= len(self.header) or \ | |
| 112 index.row() >= len(self.breakpoints): | |
| 113 return False | |
| 114 | |
| 115 self.dataAboutToBeChanged.emit(index, index) | |
| 116 self.breakpoints[index.row()][index.column()] = value | |
| 117 self.dataChanged.emit(index, index) | |
| 118 return True | |
| 119 | |
| 120 def flags(self, index): | |
| 121 """ | |
| 122 Public method to get item flags. | |
| 123 | |
| 124 @param index index of the requested flags (QModelIndex) | |
| 125 @return item flags for the given index (Qt.ItemFlags) | |
| 126 """ | |
| 127 if not index.isValid(): | |
| 128 return Qt.ItemIsEnabled | |
| 129 | |
| 130 return Qt.ItemIsEnabled | Qt.ItemIsSelectable | |
| 131 | |
| 132 def headerData(self, section, orientation, role=Qt.DisplayRole): | |
| 133 """ | |
| 134 Public method to get header data. | |
| 135 | |
| 136 @param section section number of the requested header data (integer) | |
| 137 @param orientation orientation of the header (Qt.Orientation) | |
| 138 @param role role of the requested data (Qt.ItemDataRole) | |
| 139 @return header data | |
| 140 """ | |
| 141 if orientation == Qt.Horizontal and role == Qt.DisplayRole: | |
| 142 if section >= len(self.header): | |
| 143 return "" | |
| 144 else: | |
| 145 return self.header[section] | |
| 146 | |
| 147 return None | |
| 148 | |
| 149 def index(self, row, column, parent=None): | |
| 150 """ | |
| 151 Public method to create an index. | |
| 152 | |
| 153 @param row row number for the index (integer) | |
| 154 @param column column number for the index (integer) | |
| 155 @param parent index of the parent item (QModelIndex) | |
| 156 @return requested index (QModelIndex) | |
| 157 """ | |
| 158 if (parent and parent.isValid()) or \ | |
| 159 row < 0 or row >= len(self.breakpoints) or \ | |
| 160 column < 0 or column >= len(self.header): | |
| 161 return QModelIndex() | |
| 162 | |
| 163 return self.createIndex(row, column, self.breakpoints[row]) | |
| 164 | |
| 165 def parent(self, index): | |
| 166 """ | |
| 167 Public method to get the parent index. | |
| 168 | |
| 169 @param index index of item to get parent (QModelIndex) | |
| 170 @return index of parent (QModelIndex) | |
| 171 """ | |
| 172 return QModelIndex() | |
| 173 | |
| 174 def hasChildren(self, parent=None): | |
| 175 """ | |
| 176 Public method to check for the presence of child items. | |
| 177 | |
| 178 @param parent index of parent item (QModelIndex) | |
| 179 @return flag indicating the presence of child items (boolean) | |
| 180 """ | |
| 181 if parent is None or not parent.isValid(): | |
| 182 return len(self.breakpoints) > 0 | |
| 183 else: | |
| 184 return False | |
| 185 | |
| 186 ########################################################################### | |
| 187 | |
| 188 def addBreakPoint(self, fn, line, properties): | |
| 189 """ | |
| 190 Public method to add a new breakpoint to the list. | |
| 191 | |
| 192 @param fn filename of the breakpoint (string) | |
| 193 @param line line number of the breakpoint (integer) | |
| 194 @param properties properties of the breakpoint | |
| 195 (tuple of condition (string), temporary flag (bool), | |
| 196 enabled flag (bool), ignore count (integer)) | |
| 197 """ | |
| 198 bp = [fn, line] + list(properties) | |
| 199 cnt = len(self.breakpoints) | |
| 200 self.beginInsertRows(QModelIndex(), cnt, cnt) | |
| 201 self.breakpoints.append(bp) | |
| 202 self.endInsertRows() | |
| 203 | |
| 204 def setBreakPointByIndex(self, index, fn, line, properties): | |
| 205 """ | |
| 206 Public method to set the values of a breakpoint given by index. | |
| 207 | |
| 208 @param index index of the breakpoint (QModelIndex) | |
| 209 @param fn filename of the breakpoint (string) | |
| 210 @param line line number of the breakpoint (integer) | |
| 211 @param properties properties of the breakpoint | |
| 212 (tuple of condition (string), temporary flag (bool), | |
| 213 enabled flag (bool), ignore count (integer)) | |
| 214 """ | |
| 215 if index.isValid(): | |
| 216 row = index.row() | |
| 217 index1 = self.createIndex(row, 0, self.breakpoints[row]) | |
| 218 index2 = self.createIndex( | |
| 219 row, len(self.breakpoints[row]), self.breakpoints[row]) | |
| 220 self.dataAboutToBeChanged.emit(index1, index2) | |
| 221 self.breakpoints[row] = [fn, line] + list(properties) | |
| 222 self.dataChanged.emit(index1, index2) | |
| 223 | |
| 224 def setBreakPointEnabledByIndex(self, index, enabled): | |
| 225 """ | |
| 226 Public method to set the enabled state of a breakpoint given by index. | |
| 227 | |
| 228 @param index index of the breakpoint (QModelIndex) | |
| 229 @param enabled flag giving the enabled state (boolean) | |
| 230 """ | |
| 231 if index.isValid(): | |
| 232 row = index.row() | |
| 233 col = 4 | |
| 234 index1 = self.createIndex(row, col, self.breakpoints[row]) | |
| 235 self.dataAboutToBeChanged.emit(index1, index1) | |
| 236 self.breakpoints[row][col] = enabled | |
| 237 self.dataChanged.emit(index1, index1) | |
| 238 | |
| 239 def deleteBreakPointByIndex(self, index): | |
| 240 """ | |
| 241 Public method to set the values of a breakpoint given by index. | |
| 242 | |
| 243 @param index index of the breakpoint (QModelIndex) | |
| 244 """ | |
| 245 if index.isValid(): | |
| 246 row = index.row() | |
| 247 self.beginRemoveRows(QModelIndex(), row, row) | |
| 248 del self.breakpoints[row] | |
| 249 self.endRemoveRows() | |
| 250 | |
| 251 def deleteBreakPoints(self, idxList): | |
| 252 """ | |
| 253 Public method to delete a list of breakpoints given by their indexes. | |
| 254 | |
| 255 @param idxList list of breakpoint indexes (list of QModelIndex) | |
| 256 """ | |
| 257 rows = [] | |
| 258 for index in idxList: | |
| 259 if index.isValid(): | |
| 260 rows.append(index.row()) | |
| 261 rows.sort(reverse=True) | |
| 262 for row in rows: | |
| 263 self.beginRemoveRows(QModelIndex(), row, row) | |
| 264 del self.breakpoints[row] | |
| 265 self.endRemoveRows() | |
| 266 | |
| 267 def deleteAll(self): | |
| 268 """ | |
| 269 Public method to delete all breakpoints. | |
| 270 """ | |
| 271 if self.breakpoints: | |
| 272 self.beginRemoveRows(QModelIndex(), 0, len(self.breakpoints) - 1) | |
| 273 self.breakpoints = [] | |
| 274 self.endRemoveRows() | |
| 275 | |
| 276 def getBreakPointByIndex(self, index): | |
| 277 """ | |
| 278 Public method to get the values of a breakpoint given by index. | |
| 279 | |
| 280 @param index index of the breakpoint (QModelIndex) | |
| 281 @return breakpoint (list of seven values (filename, line number, | |
| 282 condition, temporary flag, enabled flag, ignore count)) | |
| 283 """ | |
| 284 if index.isValid(): | |
| 285 return self.breakpoints[index.row()][:] # return a copy | |
| 286 else: | |
| 287 return [] | |
| 288 | |
| 289 def getBreakPointIndex(self, fn, lineno): | |
| 290 """ | |
| 291 Public method to get the index of a breakpoint given by filename and | |
| 292 line number. | |
| 293 | |
| 294 @param fn filename of the breakpoint (string) | |
| 295 @param lineno line number of the breakpoint (integer) | |
| 296 @return index (QModelIndex) | |
| 297 """ | |
| 298 for row in range(len(self.breakpoints)): | |
| 299 bp = self.breakpoints[row] | |
| 300 if bp[0] == fn and bp[1] == lineno: | |
| 301 return self.createIndex(row, 0, self.breakpoints[row]) | |
| 302 | |
| 303 return QModelIndex() | |
| 304 | |
| 305 def isBreakPointTemporaryByIndex(self, index): | |
| 306 """ | |
| 307 Public method to test, if a breakpoint given by its index is temporary. | |
| 308 | |
| 309 @param index index of the breakpoint to test (QModelIndex) | |
| 310 @return flag indicating a temporary breakpoint (boolean) | |
| 311 """ | |
| 312 if index.isValid(): | |
| 313 return self.breakpoints[index.row()][3] | |
| 314 else: | |
| 315 return False |
