--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Helpviewer/QtHelpDocumentationDialog.py Mon Dec 28 16:03:33 2009 +0000 @@ -0,0 +1,146 @@ +# -*- coding: utf-8 -*- + +# Copyright (c) 2009 Detlev Offenbach <detlev@die-offenbachs.de> +# + +""" +Module implementing a dialog to manage the QtHelp documentation database. +""" + +from PyQt4.QtGui import * +from PyQt4.QtCore import * +from PyQt4.QtHelp import QHelpEngineCore + +from Ui_QtHelpDocumentationDialog import Ui_QtHelpDocumentationDialog + +class QtHelpDocumentationDialog(QDialog, Ui_QtHelpDocumentationDialog): + """ + Class implementing a dialog to manage the QtHelp documentation database. + """ + def __init__(self, engine, parent): + """ + Constructor + + @param engine reference to the help engine (QHelpEngine) + @param parent reference to the parent widget (QWidget) + """ + QDialog.__init__(self, parent) + self.setupUi(self) + + self.removeButton.setEnabled(False) + + self.__engine = engine + self.__mw = parent + + docs = self.__engine.registeredDocumentations() + self.documentsList.addItems(docs) + + self.__registeredDocs = [] + self.__unregisteredDocs = [] + self.__tabsToClose = [] + + @pyqtSlot() + def on_documentsList_itemSelectionChanged(self): + """ + Private slot handling a change of the documents selection. + """ + self.removeButton.setEnabled(len(self.documentsList.selectedItems()) != 0) + + @pyqtSlot() + def on_addButton_clicked(self): + """ + Private slot to add documents to the help database. + """ + fileNames = QFileDialog.getOpenFileNames( + self, + self.trUtf8("Add Documentation"), + "", + self.trUtf8("Qt Compressed Help Files (*.qch)")) + if not fileNames: + return + + for fileName in fileNames: + ns = QHelpEngineCore.namespaceName(fileName) + if not ns: + QMessageBox.warning(self, + self.trUtf8("Add Documentation"), + self.trUtf8("""The file <b>{0}</b> is not a valid Qt Help File.""")\ + .format(fileName) + ) + continue + + if len(self.documentsList.findItems(ns, Qt.MatchFixedString)): + QMessageBox.warning(self, + self.trUtf8("Add Documentation"), + self.trUtf8("""The namespace <b>{0}</b> is already registered.""")\ + .format(ns) + ) + continue + + self.__engine.registerDocumentation(fileName) + self.documentsList.addItem(ns) + self.__registeredDocs.append(ns) + if ns in self.__unregisteredDocs: + self.__unregisteredDocs.remove(ns) + + @pyqtSlot() + def on_removeButton_clicked(self): + """ + Private slot to remove a document from the help database. + """ + res = QMessageBox.question(None, + self.trUtf8("Remove Documentation"), + self.trUtf8("""Do you really want to remove the selected documentation """ + """sets from the database?"""), + QMessageBox.StandardButtons(\ + QMessageBox.No | \ + QMessageBox.Yes), + QMessageBox.No) + if res == QMessageBox.No: + return + + openedDocs = self.__mw.getSourceFileList() + + items = self.documentsList.selectedItems() + for item in items: + ns = item.text() + if ns in openedDocs.values(): + res = QMessageBox.information(self, + self.trUtf8("Remove Documentation"), + self.trUtf8("""Some documents currently opened reference the """ + """documentation you are attempting to remove. """ + """Removing the documentation will close those """ + """documents."""), + QMessageBox.StandardButtons(\ + QMessageBox.Cancel | \ + QMessageBox.Ok)) + if res == QMessageBox.Cancel: + return + self.__unregisteredDocs.append(ns) + for id in openedDocs: + if openedDocs[id] == ns and id not in self.__tabsToClose: + self.__tabsToClose.append(id) + itm = self.documentsList.takeItem(self.documentsList.row(item)) + del itm + + self.__engine.unregisterDocumentation(ns) + + if self.documentsList.count(): + self.documentsList.setCurrentRow(0, QItemSelectionModel.ClearAndSelect) + + def hasChanges(self): + """ + Public slot to test the dialog for changes. + + @return flag indicating presence of changes + """ + return len(self.__registeredDocs) > 0 or \ + len(self.__unregisteredDocs) > 0 + + def getTabsToClose(self): + """ + Public method to get the list of tabs to close. + + @return list of tab ids to be closed (list of integers) + """ + return self.__tabsToClose