Mercurial Repositories > eric / file comparison
comparison: Helpviewer/QtHelpFiltersDialog.py
Helpviewer/QtHelpFiltersDialog.py
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- de9c2efb9d02
- child 12
- 1d8dd9706f46
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2009 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a dialog to manage the QtHelp filters. | |
| 8 """ | |
| 9 | |
| 10 from PyQt4.QtGui import * | |
| 11 from PyQt4.QtCore import * | |
| 12 from PyQt4.QtHelp import QHelpEngineCore | |
| 13 | |
| 14 from Ui_QtHelpFiltersDialog import Ui_QtHelpFiltersDialog | |
| 15 | |
| 16 class QtHelpFiltersDialog(QDialog, Ui_QtHelpFiltersDialog): | |
| 17 """ | |
| 18 Class implementing a dialog to manage the QtHelp filters | |
| 19 """ | |
| 20 def __init__(self, engine, parent = None): | |
| 21 """ | |
| 22 Constructor | |
| 23 | |
| 24 @param engine reference to the help engine (QHelpEngine) | |
| 25 @param parent reference to the parent widget (QWidget) | |
| 26 """ | |
| 27 QDialog.__init__(self, parent) | |
| 28 self.setupUi(self) | |
| 29 | |
| 30 self.__engine = engine | |
| 31 | |
| 32 self.attributesList.header().hide() | |
| 33 | |
| 34 self.filtersList.clear() | |
| 35 self.attributesList.clear() | |
| 36 | |
| 37 help = QHelpEngineCore(self.__engine.collectionFile()) | |
| 38 help.setupData() | |
| 39 | |
| 40 self.__removedFilters = [] | |
| 41 self.__filterMap = {} | |
| 42 self.__filterMapBackup = {} | |
| 43 | |
| 44 for filter in help.customFilters(): | |
| 45 atts = help.filterAttributes(filter) | |
| 46 self.__filterMapBackup[filter] = atts | |
| 47 if filter not in self.__filterMap: | |
| 48 self.__filterMap[filter] = atts | |
| 49 | |
| 50 self.filtersList.addItems(sorted(self.__filterMap.keys())) | |
| 51 for attr in help.filterAttributes(): | |
| 52 QTreeWidgetItem(self.attributesList, [attr]) | |
| 53 | |
| 54 if self.__filterMap: | |
| 55 self.filtersList.setCurrentRow(0) | |
| 56 | |
| 57 @pyqtSlot(QListWidgetItem, QListWidgetItem) | |
| 58 def on_filtersList_currentItemChanged(self, current, previous): | |
| 59 """ | |
| 60 Private slot to update the attributes depending on the current filter. | |
| 61 | |
| 62 @param current reference to the current item (QListWidgetitem) | |
| 63 @param previous reference to the previous current item (QListWidgetItem) | |
| 64 """ | |
| 65 checkedList = [] | |
| 66 if current is not None: | |
| 67 checkedList = self.__filterMap[current.text()] | |
| 68 for index in range(0, self.attributesList.topLevelItemCount()): | |
| 69 itm = self.attributesList.topLevelItem(index) | |
| 70 if itm.text(0) in checkedList: | |
| 71 itm.setCheckState(0, Qt.Checked) | |
| 72 else: | |
| 73 itm.setCheckState(0, Qt.Unchecked) | |
| 74 | |
| 75 @pyqtSlot(QTreeWidgetItem, int) | |
| 76 def on_attributesList_itemChanged(self, item, column): | |
| 77 """ | |
| 78 Private slot to handle a change of an attribute. | |
| 79 | |
| 80 @param item reference to the changed item (QTreeWidgetItem) | |
| 81 @param column column containing the change (integer) | |
| 82 """ | |
| 83 if self.filtersList.currentItem() is None: | |
| 84 return | |
| 85 | |
| 86 filter = self.filtersList.currentItem().text() | |
| 87 if filter not in self.__filterMap: | |
| 88 return | |
| 89 | |
| 90 newAtts = [] | |
| 91 for index in range(0, self.attributesList.topLevelItemCount()): | |
| 92 itm = self.attributesList.topLevelItem(index) | |
| 93 if itm.checkState(0) == Qt.Checked: | |
| 94 newAtts.append(itm.text(0)) | |
| 95 self.__filterMap[filter] = newAtts | |
| 96 | |
| 97 @pyqtSlot() | |
| 98 def on_addButton_clicked(self): | |
| 99 """ | |
| 100 Private slot to add a new filter. | |
| 101 """ | |
| 102 filter, ok = QInputDialog.getText(\ | |
| 103 None, | |
| 104 self.trUtf8("Add Filter"), | |
| 105 self.trUtf8("Filter name:"), | |
| 106 QLineEdit.Normal) | |
| 107 if not filter: | |
| 108 return | |
| 109 | |
| 110 if filter not in self.__filterMap: | |
| 111 self.__filterMap[filter] = [] | |
| 112 self.filtersList.addItem(filter) | |
| 113 | |
| 114 itm = self.filtersList.findItems(filter, Qt.MatchCaseSensitive)[0] | |
| 115 self.filtersList.setCurrentItem(itm) | |
| 116 | |
| 117 @pyqtSlot() | |
| 118 def on_removeButton_clicked(self): | |
| 119 """ | |
| 120 Private slot to remove a filter. | |
| 121 """ | |
| 122 itm = self.filtersList.takeItem(self.filtersList.currentRow()) | |
| 123 if itm is None: | |
| 124 return | |
| 125 | |
| 126 del self.__filterMap[itm.text()] | |
| 127 self.__removedFilters.append(itm.text()) | |
| 128 del itm | |
| 129 if self.filtersList.count(): | |
| 130 self.filtersList.setCurrentRow(0) | |
| 131 | |
| 132 @pyqtSlot() | |
| 133 def on_buttonBox_accepted(self): | |
| 134 """ | |
| 135 Private slot to update the database, if the dialog is accepted. | |
| 136 """ | |
| 137 filtersChanged = False | |
| 138 if len(self.__filterMapBackup) != len(self.__filterMap): | |
| 139 filtersChanged = True | |
| 140 else: | |
| 141 for filter in self.__filterMapBackup: | |
| 142 if filter not in self.__filterMap: | |
| 143 filtersChanged = True | |
| 144 else: | |
| 145 oldFilterAtts = self.__filterMapBackup[filter] | |
| 146 newFilterAtts = self.__filterMap[filter] | |
| 147 if len(oldFilterAtts) != len(newFilterAtts): | |
| 148 filtersChanged = True | |
| 149 else: | |
| 150 for attr in oldFilterAtts: | |
| 151 if attr not in newFilterAtts: | |
| 152 filtersChanged = True | |
| 153 break | |
| 154 | |
| 155 if filtersChanged: | |
| 156 break | |
| 157 | |
| 158 if filtersChanged: | |
| 159 for filter in self.__removedFilters: | |
| 160 self.__engine.removeCustomFilter(filter) | |
| 161 for filter in self.__filterMap: | |
| 162 self.__engine.addCustomFilter(filter, self.__filterMap[filter]) | |
| 163 | |
| 164 self.__engine.setupData() | |
| 165 | |
| 166 self.accept() |
