--- a/eric6/Helpviewer/QtHelpFiltersDialog.py Sat Sep 07 14:45:27 2019 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,275 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# Copyright (c) 2009 - 2019 Detlev Offenbach <detlev@die-offenbachs.de>
-#
-
-"""
-Module implementing a dialog to manage the QtHelp filters.
-"""
-
-from __future__ import unicode_literals
-
-import sqlite3
-
-from PyQt5.QtCore import pyqtSlot, Qt, QItemSelectionModel
-from PyQt5.QtWidgets import QDialog, QTreeWidgetItem, QListWidgetItem, \
- QInputDialog, QLineEdit
-from PyQt5.QtHelp import QHelpEngineCore
-
-from E5Gui import E5MessageBox
-
-from .Ui_QtHelpFiltersDialog import Ui_QtHelpFiltersDialog
-
-
-class QtHelpFiltersDialog(QDialog, Ui_QtHelpFiltersDialog):
- """
- Class implementing a dialog to manage the QtHelp filters.
- """
- def __init__(self, engine, parent=None):
- """
- Constructor
-
- @param engine reference to the help engine (QHelpEngine)
- @param parent reference to the parent widget (QWidget)
- """
- super(QtHelpFiltersDialog, self).__init__(parent)
- self.setupUi(self)
-
- self.removeButton.setEnabled(False)
- self.removeAttributeButton.setEnabled(False)
-
- self.__engine = engine
-
- self.filtersList.clear()
- self.attributesList.clear()
-
- helpEngineCore = QHelpEngineCore(self.__engine.collectionFile())
- helpEngineCore.setupData()
-
- self.__removedFilters = []
- self.__filterMap = {}
- self.__filterMapBackup = {}
- self.__removedAttributes = []
-
- for customFilter in helpEngineCore.customFilters():
- atts = helpEngineCore.filterAttributes(customFilter)
- self.__filterMapBackup[customFilter] = atts
- if customFilter not in self.__filterMap:
- self.__filterMap[customFilter] = atts
-
- self.filtersList.addItems(sorted(self.__filterMap.keys()))
- for attr in helpEngineCore.filterAttributes():
- QTreeWidgetItem(self.attributesList, [attr])
- self.attributesList.sortItems(0, Qt.AscendingOrder)
-
- if self.__filterMap:
- self.filtersList.setCurrentRow(0)
-
- @pyqtSlot(QListWidgetItem, QListWidgetItem)
- def on_filtersList_currentItemChanged(self, current, previous):
- """
- Private slot to update the attributes depending on the current filter.
-
- @param current reference to the current item (QListWidgetitem)
- @param previous reference to the previous current item
- (QListWidgetItem)
- """
- checkedList = []
- if current is not None:
- checkedList = self.__filterMap[current.text()]
- for index in range(0, self.attributesList.topLevelItemCount()):
- itm = self.attributesList.topLevelItem(index)
- if itm.text(0) in checkedList:
- itm.setCheckState(0, Qt.Checked)
- else:
- itm.setCheckState(0, Qt.Unchecked)
-
- @pyqtSlot()
- def on_filtersList_itemSelectionChanged(self):
- """
- Private slot handling a change of selected filters.
- """
- self.removeButton.setEnabled(
- len(self.filtersList.selectedItems()) > 0)
-
- @pyqtSlot(QTreeWidgetItem, int)
- def on_attributesList_itemChanged(self, item, column):
- """
- Private slot to handle a change of an attribute.
-
- @param item reference to the changed item (QTreeWidgetItem)
- @param column column containing the change (integer)
- """
- if self.filtersList.currentItem() is None:
- return
-
- filterText = self.filtersList.currentItem().text()
- if filterText not in self.__filterMap:
- return
-
- newAtts = []
- for index in range(0, self.attributesList.topLevelItemCount()):
- itm = self.attributesList.topLevelItem(index)
- if itm.checkState(0) == Qt.Checked:
- newAtts.append(itm.text(0))
- self.__filterMap[filterText] = newAtts
-
- @pyqtSlot()
- def on_attributesList_itemSelectionChanged(self):
- """
- Private slot handling the selection of attributes.
- """
- self.removeAttributeButton.setEnabled(
- len(self.attributesList.selectedItems()) != 0)
-
- @pyqtSlot()
- def on_addButton_clicked(self):
- """
- Private slot to add a new filter.
- """
- customFilter, ok = QInputDialog.getText(
- None,
- self.tr("Add Filter"),
- self.tr("Filter name:"),
- QLineEdit.Normal)
- if not customFilter:
- return
-
- if customFilter not in self.__filterMap:
- self.__filterMap[customFilter] = []
- self.filtersList.addItem(customFilter)
-
- itm = self.filtersList.findItems(
- customFilter, Qt.MatchCaseSensitive)[0]
- self.filtersList.setCurrentItem(itm)
-
- @pyqtSlot()
- def on_removeButton_clicked(self):
- """
- Private slot to remove the selected filters.
- """
- ok = E5MessageBox.yesNo(
- self,
- self.tr("Remove Filters"),
- self.tr(
- """Do you really want to remove the selected filters """
- """from the database?"""))
- if not ok:
- return
-
- items = self.filtersList.selectedItems()
- for item in items:
- itm = self.filtersList.takeItem(self.filtersList.row(item))
- if itm is None:
- continue
-
- del self.__filterMap[itm.text()]
- self.__removedFilters.append(itm.text())
- del itm
-
- if self.filtersList.count():
- self.filtersList.setCurrentRow(
- 0, QItemSelectionModel.ClearAndSelect)
-
- @pyqtSlot()
- def on_removeAttributeButton_clicked(self):
- """
- Private slot to remove the selected filter attributes.
- """
- ok = E5MessageBox.yesNo(
- self,
- self.tr("Remove Attributes"),
- self.tr(
- """Do you really want to remove the selected attributes """
- """from the database?"""))
- if not ok:
- return
-
- items = self.attributesList.selectedItems()
- for item in items:
- itm = self.attributesList.takeTopLevelItem(
- self.attributesList.indexOfTopLevelItem(item))
- if itm is None:
- continue
-
- attr = itm.text(0)
- self.__removedAttributes.append(attr)
- for customFilter in self.__filterMap:
- if attr in self.__filterMap[customFilter]:
- self.__filterMap[customFilter].remove(attr)
-
- del itm
-
- @pyqtSlot()
- def on_unusedAttributesButton_clicked(self):
- """
- Private slot to select all unused attributes.
- """
- # step 1: determine all used attributes
- attributes = set()
- for customFilter in self.__filterMap:
- attributes |= set(self.__filterMap[customFilter])
-
- # step 2: select all unused attribute items
- self.attributesList.clearSelection()
- for row in range(self.attributesList.topLevelItemCount()):
- itm = self.attributesList.topLevelItem(row)
- if itm.text(0) not in attributes:
- itm.setSelected(True)
-
- def __removeAttributes(self):
- """
- Private method to remove attributes from the Qt Help database.
- """
- try:
- self.__db = sqlite3.connect(self.__engine.collectionFile())
- except sqlite3.DatabaseError:
- pass # ignore database errors
-
- for attr in self.__removedAttributes:
- self.__db.execute(
- "DELETE FROM FilterAttributeTable WHERE Name = '{0}'"
- .format(attr))
- self.__db.commit()
- self.__db.close()
-
- @pyqtSlot()
- def on_buttonBox_accepted(self):
- """
- Private slot to update the database, if the dialog is accepted.
- """
- filtersChanged = False
- if len(self.__filterMapBackup) != len(self.__filterMap):
- filtersChanged = True
- else:
- for customFilter in self.__filterMapBackup:
- if customFilter not in self.__filterMap:
- filtersChanged = True
- else:
- oldFilterAtts = self.__filterMapBackup[customFilter]
- newFilterAtts = self.__filterMap[customFilter]
- if len(oldFilterAtts) != len(newFilterAtts):
- filtersChanged = True
- else:
- for attr in oldFilterAtts:
- if attr not in newFilterAtts:
- filtersChanged = True
- break
-
- if filtersChanged:
- break
-
- if filtersChanged:
- for customFilter in self.__removedFilters:
- self.__engine.removeCustomFilter(customFilter)
- for customFilter in self.__filterMap:
- self.__engine.addCustomFilter(
- customFilter, self.__filterMap[customFilter])
-
- if self.__removedAttributes:
- self.__removeAttributes()
-
- if filtersChanged or self.__removedAttributes:
- self.__engine.setupData()
-
- self.accept()
