Mercurial Repositories > eric / file comparison
comparison: Debugger/WatchPointModel.py
Debugger/WatchPointModel.py
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2006 - 2009 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the Watch expression model. | |
| 8 """ | |
| 9 | |
| 10 from PyQt4.QtCore import * | |
| 11 | |
| 12 class WatchPointModel(QAbstractItemModel): | |
| 13 """ | |
| 14 Class implementing a custom model for watch expressions. | |
| 15 """ | |
| 16 def __init__(self, parent = None): | |
| 17 """ | |
| 18 Constructor | |
| 19 | |
| 20 @param reference to the parent widget (QObject) | |
| 21 """ | |
| 22 QObject.__init__(self, parent) | |
| 23 | |
| 24 self.watchpoints = [] | |
| 25 self.header = [ | |
| 26 QVariant(self.trUtf8("Condition")), | |
| 27 QVariant(self.trUtf8("Special")), | |
| 28 QVariant(self.trUtf8('Temporary')), | |
| 29 QVariant(self.trUtf8('Enabled')), | |
| 30 QVariant(self.trUtf8('Ignore Count')), | |
| 31 ] | |
| 32 self.alignments = [QVariant(Qt.Alignment(Qt.AlignLeft)), | |
| 33 QVariant(Qt.Alignment(Qt.AlignLeft)), | |
| 34 QVariant(Qt.Alignment(Qt.AlignHCenter)), | |
| 35 QVariant(Qt.Alignment(Qt.AlignHCenter)), | |
| 36 QVariant(Qt.Alignment(Qt.AlignRight)), | |
| 37 ] | |
| 38 | |
| 39 def columnCount(self, parent = QModelIndex()): | |
| 40 """ | |
| 41 Public method to get the current column count. | |
| 42 | |
| 43 @return column count (integer) | |
| 44 """ | |
| 45 return len(self.header) + 1 | |
| 46 | |
| 47 def rowCount(self, parent = QModelIndex()): | |
| 48 """ | |
| 49 Public method to get the current row count. | |
| 50 | |
| 51 @return row count (integer) | |
| 52 """ | |
| 53 # we do not have a tree, parent should always be invalid | |
| 54 if not parent.isValid(): | |
| 55 return len(self.watchpoints) | |
| 56 else: | |
| 57 return 0 | |
| 58 | |
| 59 def data(self, index, role): | |
| 60 """ | |
| 61 Public method to get the requested data. | |
| 62 | |
| 63 @param index index of the requested data (QModelIndex) | |
| 64 @param role role of the requested data (Qt.ItemDataRole) | |
| 65 @return the requested data (QVariant) | |
| 66 """ | |
| 67 if not index.isValid(): | |
| 68 return QVariant() | |
| 69 | |
| 70 if role == Qt.DisplayRole or role == Qt.ToolTipRole: | |
| 71 if index.column() < len(self.header): | |
| 72 return QVariant(self.watchpoints[index.row()][index.column()]) | |
| 73 | |
| 74 if role == Qt.TextAlignmentRole: | |
| 75 if index.column() < len(self.alignments): | |
| 76 return self.alignments[index.column()] | |
| 77 | |
| 78 return QVariant() | |
| 79 | |
| 80 def flags(self, index): | |
| 81 """ | |
| 82 Public method to get item flags. | |
| 83 | |
| 84 @param index index of the requested flags (QModelIndex) | |
| 85 @return item flags for the given index (Qt.ItemFlags) | |
| 86 """ | |
| 87 if not index.isValid(): | |
| 88 return Qt.ItemIsEnabled | |
| 89 | |
| 90 return Qt.ItemIsEnabled | Qt.ItemIsSelectable | |
| 91 | |
| 92 def headerData(self, section, orientation, role = Qt.DisplayRole): | |
| 93 """ | |
| 94 Public method to get header data. | |
| 95 | |
| 96 @param section section number of the requested header data (integer) | |
| 97 @param orientation orientation of the header (Qt.Orientation) | |
| 98 @param role role of the requested data (Qt.ItemDataRole) | |
| 99 @return header data (QVariant) | |
| 100 """ | |
| 101 if orientation == Qt.Horizontal and role == Qt.DisplayRole: | |
| 102 if section >= len(self.header): | |
| 103 return QVariant("") | |
| 104 else: | |
| 105 return self.header[section] | |
| 106 | |
| 107 return QVariant() | |
| 108 | |
| 109 def index(self, row, column, parent = QModelIndex()): | |
| 110 """ | |
| 111 Public method to create an index. | |
| 112 | |
| 113 @param row row number for the index (integer) | |
| 114 @param column column number for the index (integer) | |
| 115 @param parent index of the parent item (QModelIndex) | |
| 116 @return requested index (QModelIndex) | |
| 117 """ | |
| 118 if parent.isValid() or \ | |
| 119 row < 0 or row >= len(self.watchpoints) or \ | |
| 120 column < 0 or column >= len(self.header): | |
| 121 return QModelIndex() | |
| 122 | |
| 123 return self.createIndex(row, column, self.watchpoints[row]) | |
| 124 | |
| 125 def parent(self, index): | |
| 126 """ | |
| 127 Public method to get the parent index. | |
| 128 | |
| 129 @param index index of item to get parent (QModelIndex) | |
| 130 @return index of parent (QModelIndex) | |
| 131 """ | |
| 132 return QModelIndex() | |
| 133 | |
| 134 def hasChildren(self, parent = QModelIndex()): | |
| 135 """ | |
| 136 Public method to check for the presence of child items. | |
| 137 | |
| 138 @param parent index of parent item (QModelIndex) | |
| 139 @return flag indicating the presence of child items (boolean) | |
| 140 """ | |
| 141 if not parent.isValid(): | |
| 142 return len(self.watchpoints) > 0 | |
| 143 else: | |
| 144 return False | |
| 145 | |
| 146 ############################################################################ | |
| 147 | |
| 148 def addWatchPoint(self, cond, special, properties): | |
| 149 """ | |
| 150 Public method to add a new watch expression to the list. | |
| 151 | |
| 152 @param cond expression of the watch expression (string) | |
| 153 @param special special condition of the watch expression (string) | |
| 154 @param properties properties of the watch expression | |
| 155 (tuple of temporary flag (bool), enabled flag (bool), ignore count (integer)) | |
| 156 """ | |
| 157 wp = [cond, special] + list(properties) | |
| 158 cnt = len(self.watchpoints) | |
| 159 self.beginInsertRows(QModelIndex(), cnt, cnt) | |
| 160 self.watchpoints.append(wp) | |
| 161 self.endInsertRows() | |
| 162 | |
| 163 def setWatchPointByIndex(self, index, cond, special, properties): | |
| 164 """ | |
| 165 Public method to set the values of a watch expression given by index. | |
| 166 | |
| 167 @param index index of the watch expression (QModelIndex) | |
| 168 @param cond expression of the watch expression (string) | |
| 169 @param special special condition of the watch expression (string) | |
| 170 @param properties properties of the watch expression | |
| 171 (tuple of temporary flag (bool), enabled flag (bool), ignore count (integer)) | |
| 172 """ | |
| 173 if index.isValid(): | |
| 174 row = index.row() | |
| 175 index1 = self.createIndex(row, 0, self.watchpoints[row]) | |
| 176 index2 = self.createIndex(row, len(self.watchpoints[row]), | |
| 177 self.watchpoints[row]) | |
| 178 self.emit(\ | |
| 179 SIGNAL("dataAboutToBeChanged(const QModelIndex &, const QModelIndex &)"), | |
| 180 index1, index2) | |
| 181 i = 0 | |
| 182 for value in [cond, special] + list(properties): | |
| 183 self.watchpoints[row][i] = value | |
| 184 i += 1 | |
| 185 self.emit(SIGNAL("dataChanged(const QModelIndex &, const QModelIndex &)"), | |
| 186 index1, index2) | |
| 187 | |
| 188 def setWatchPointEnabledByIndex(self, index, enabled): | |
| 189 """ | |
| 190 Public method to set the enabled state of a watch expression given by index. | |
| 191 | |
| 192 @param index index of the watch expression (QModelIndex) | |
| 193 @param enabled flag giving the enabled state (boolean) | |
| 194 """ | |
| 195 if index.isValid(): | |
| 196 row = index.row() | |
| 197 col = 3 | |
| 198 index1 = self.createIndex(row, col, self.watchpoints[row]) | |
| 199 self.emit(\ | |
| 200 SIGNAL("dataAboutToBeChanged(const QModelIndex &, const QModelIndex &)"), | |
| 201 index1, index1) | |
| 202 self.watchpoints[row][col] = enabled | |
| 203 self.emit(SIGNAL("dataChanged(const QModelIndex &, const QModelIndex &)"), | |
| 204 index1, index1) | |
| 205 | |
| 206 def deleteWatchPointByIndex(self, index): | |
| 207 """ | |
| 208 Public method to set the values of a watch expression given by index. | |
| 209 | |
| 210 @param index index of the watch expression (QModelIndex) | |
| 211 """ | |
| 212 if index.isValid(): | |
| 213 row = index.row() | |
| 214 self.beginRemoveRows(QModelIndex(), row, row) | |
| 215 del self.watchpoints[row] | |
| 216 self.endRemoveRows() | |
| 217 | |
| 218 def deleteWatchPoints(self, idxList): | |
| 219 """ | |
| 220 Public method to delete a list of watch expressions given by their indexes. | |
| 221 | |
| 222 @param idxList list of watch expression indexes (list of QModelIndex) | |
| 223 """ | |
| 224 rows = [] | |
| 225 for index in idxList: | |
| 226 if index.isValid(): | |
| 227 rows.append(index.row()) | |
| 228 rows.sort(reverse = True) | |
| 229 for row in rows: | |
| 230 self.beginRemoveRows(QModelIndex(), row, row) | |
| 231 del self.watchpoints[row] | |
| 232 self.endRemoveRows() | |
| 233 | |
| 234 def deleteAll(self): | |
| 235 """ | |
| 236 Public method to delete all watch expressions. | |
| 237 """ | |
| 238 if self.watchpoints: | |
| 239 self.beginRemoveRows(QModelIndex(), 0, len(self.watchpoints) - 1) | |
| 240 self.watchpoints = [] | |
| 241 self.endRemoveRows() | |
| 242 | |
| 243 def getWatchPointByIndex(self, index): | |
| 244 """ | |
| 245 Public method to get the values of a watch expression given by index. | |
| 246 | |
| 247 @param index index of the watch expression (QModelIndex) | |
| 248 @return watch expression (list of six values (expression, special condition, | |
| 249 temporary flag, enabled flag, ignore count, index)) | |
| 250 """ | |
| 251 if index.isValid(): | |
| 252 return self.watchpoints[index.row()][:] # return a copy | |
| 253 else: | |
| 254 return [] | |
| 255 | |
| 256 def getWatchPointIndex(self, cond, special = ""): | |
| 257 """ | |
| 258 Public method to get the index of a watch expression given by expression. | |
| 259 | |
| 260 @param cond expression of the watch expression (string) | |
| 261 @param special special condition of the watch expression (string) | |
| 262 @return index (QModelIndex) | |
| 263 """ | |
| 264 for row in range(len(self.watchpoints)): | |
| 265 wp = self.watchpoints[row] | |
| 266 if wp[0] == cond: | |
| 267 if special and wp[1] != special: | |
| 268 continue | |
| 269 return self.createIndex(row, 0, self.watchpoints[row]) | |
| 270 | |
| 271 return QModelIndex() |
