Mercurial Repositories > eric / file comparison
comparison: UI/BrowserModel.py
UI/BrowserModel.py
- changeset 5656
- 9c21b2746218
- parent 5624
- cdd346d8858b
- child 5708
- 9b01b4004314
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| 5654:d75dfc0d10f2 | 5656:9c21b2746218 |
|---|---|
| 66 rootData = QCoreApplication.translate("BrowserModel", "Name") | 66 rootData = QCoreApplication.translate("BrowserModel", "Name") |
| 67 self.rootItem = BrowserItem(None, rootData) | 67 self.rootItem = BrowserItem(None, rootData) |
| 68 | 68 |
| 69 self.__populateModel() | 69 self.__populateModel() |
| 70 | 70 |
| 71 def columnCount(self, parent=QModelIndex()): | 71 def columnCount(self, parent=None): |
| 72 """ | 72 """ |
| 73 Public method to get the number of columns. | 73 Public method to get the number of columns. |
| 74 | 74 |
| 75 @param parent index of parent item (QModelIndex) | 75 @param parent index of parent item (QModelIndex) |
| 76 @return number of columns (integer) | 76 @return number of columns (integer) |
| 77 """ | 77 """ |
| 78 if parent is None: | |
| 79 parent = QModelIndex() | |
| 80 | |
| 78 if parent.isValid(): | 81 if parent.isValid(): |
| 79 item = parent.internalPointer() | 82 item = parent.internalPointer() |
| 80 else: | 83 else: |
| 81 item = self.rootItem | 84 item = self.rootItem |
| 82 | 85 |
| 141 else: | 144 else: |
| 142 return self.rootItem.data(section) | 145 return self.rootItem.data(section) |
| 143 | 146 |
| 144 return None | 147 return None |
| 145 | 148 |
| 146 def index(self, row, column, parent=QModelIndex()): | 149 def index(self, row, column, parent=None): |
| 147 """ | 150 """ |
| 148 Public method to create an index. | 151 Public method to create an index. |
| 149 | 152 |
| 150 @param row row number of the new index (integer) | 153 @param row row number of the new index (integer) |
| 151 @param column column number of the new index (integer) | 154 @param column column number of the new index (integer) |
| 152 @param parent index of parent item (QModelIndex) | 155 @param parent index of parent item (QModelIndex) |
| 153 @return index object (QModelIndex) | 156 @return index object (QModelIndex) |
| 154 """ | 157 """ |
| 158 if parent is None: | |
| 159 parent = QModelIndex() | |
| 160 | |
| 155 # The model/view framework considers negative values out-of-bounds, | 161 # The model/view framework considers negative values out-of-bounds, |
| 156 # however in python they work when indexing into lists. So make sure | 162 # however in python they work when indexing into lists. So make sure |
| 157 # we return an invalid index for out-of-bounds row/col | 163 # we return an invalid index for out-of-bounds row/col |
| 158 if row < 0 or column < 0 or \ | 164 if row < 0 or column < 0 or \ |
| 159 row >= self.rowCount(parent) or column >= self.columnCount(parent): | 165 row >= self.rowCount(parent) or column >= self.columnCount(parent): |
| 191 if parentItem == self.rootItem: | 197 if parentItem == self.rootItem: |
| 192 return QModelIndex() | 198 return QModelIndex() |
| 193 | 199 |
| 194 return self.createIndex(parentItem.row(), 0, parentItem) | 200 return self.createIndex(parentItem.row(), 0, parentItem) |
| 195 | 201 |
| 196 def rowCount(self, parent=QModelIndex()): | 202 def rowCount(self, parent=None): |
| 197 """ | 203 """ |
| 198 Public method to get the number of rows. | 204 Public method to get the number of rows. |
| 199 | 205 |
| 200 @param parent index of parent item (QModelIndex) | 206 @param parent index of parent item (QModelIndex) |
| 201 @return number of rows (integer) | 207 @return number of rows (integer) |
| 202 """ | 208 """ |
| 209 if parent is None: | |
| 210 parent = QModelIndex() | |
| 211 | |
| 203 # Only the first column should have children | 212 # Only the first column should have children |
| 204 if parent.column() > 0: | 213 if parent.column() > 0: |
| 205 return 0 | 214 return 0 |
| 206 | 215 |
| 207 if not parent.isValid(): | 216 if not parent.isValid(): |
| 211 if not parentItem.isPopulated(): # lazy population | 220 if not parentItem.isPopulated(): # lazy population |
| 212 self.populateItem(parentItem) | 221 self.populateItem(parentItem) |
| 213 | 222 |
| 214 return parentItem.childCount() | 223 return parentItem.childCount() |
| 215 | 224 |
| 216 def hasChildren(self, parent=QModelIndex()): | 225 def hasChildren(self, parent=None): |
| 217 """ | 226 """ |
| 218 Public method to check for the presence of child items. | 227 Public method to check for the presence of child items. |
| 219 | 228 |
| 220 We always return True for normal items in order to do lazy | 229 We always return True for normal items in order to do lazy |
| 221 population of the tree. | 230 population of the tree. |
| 222 | 231 |
| 223 @param parent index of parent item (QModelIndex) | 232 @param parent index of parent item (QModelIndex) |
| 224 @return flag indicating the presence of child items (boolean) | 233 @return flag indicating the presence of child items (boolean) |
| 225 """ | 234 """ |
| 235 if parent is None: | |
| 236 parent = QModelIndex() | |
| 237 | |
| 226 # Only the first column should have children | 238 # Only the first column should have children |
| 227 if parent.column() > 0: | 239 if parent.column() > 0: |
| 228 return 0 | 240 return 0 |
| 229 | 241 |
| 230 if not parent.isValid(): | 242 if not parent.isValid(): |
| 481 @param itm reference to item to add (BrowserItem) | 493 @param itm reference to item to add (BrowserItem) |
| 482 @param parentItem reference to item to add to (BrowserItem) | 494 @param parentItem reference to item to add to (BrowserItem) |
| 483 """ | 495 """ |
| 484 parentItem.appendChild(itm) | 496 parentItem.appendChild(itm) |
| 485 | 497 |
| 486 def addItem(self, itm, parent=QModelIndex()): | 498 def addItem(self, itm, parent=None): |
| 487 """ | 499 """ |
| 488 Public slot to add an item. | 500 Public slot to add an item. |
| 489 | 501 |
| 490 @param itm item to add (BrowserItem) | 502 @param itm item to add (BrowserItem) |
| 491 @param parent index of parent item (QModelIndex) | 503 @param parent index of parent item (QModelIndex) |
| 492 """ | 504 """ |
| 505 if parent is None: | |
| 506 parent = QModelIndex() | |
| 507 | |
| 493 if not parent.isValid(): | 508 if not parent.isValid(): |
| 494 parentItem = self.rootItem | 509 parentItem = self.rootItem |
| 495 else: | 510 else: |
| 496 parentItem = parent.internalPointer() | 511 parentItem = parent.internalPointer() |
| 497 | 512 |
