Helpviewer/QtHelpDocumentationDialog.py

Sat, 19 Oct 2013 13:03:39 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sat, 19 Oct 2013 13:03:39 +0200
changeset 3034
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parent 3020
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child 3035
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permissions
-rw-r--r--

Fixed various coding style issues.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2009 - 2013 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing a dialog to manage the QtHelp documentation database.
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8 """
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9
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10 from PyQt4.QtCore import pyqtSlot, Qt
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11 from PyQt4.QtGui import QDialog, QItemSelectionModel
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12 from PyQt4.QtHelp import QHelpEngineCore
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13
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14 from E5Gui import E5MessageBox, E5FileDialog
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15
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16 from .Ui_QtHelpDocumentationDialog import Ui_QtHelpDocumentationDialog
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17
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18
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19 class QtHelpDocumentationDialog(QDialog, Ui_QtHelpDocumentationDialog):
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20 """
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21 Class implementing a dialog to manage the QtHelp documentation database.
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22 """
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23 def __init__(self, engine, parent):
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24 """
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25 Constructor
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26
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27 @param engine reference to the help engine (QHelpEngine)
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28 @param parent reference to the parent widget (QWidget)
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29 """
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30 super().__init__(parent)
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31 self.setupUi(self)
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32
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33 self.removeButton.setEnabled(False)
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34
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35 self.__engine = engine
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36 self.__mw = parent
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37
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38 docs = self.__engine.registeredDocumentations()
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39 self.documentsList.addItems(docs)
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40
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41 self.__registeredDocs = []
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42 self.__unregisteredDocs = []
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43 self.__tabsToClose = []
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44
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45 @pyqtSlot()
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46 def on_documentsList_itemSelectionChanged(self):
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47 """
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48 Private slot handling a change of the documents selection.
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49 """
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50 self.removeButton.setEnabled(
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51 len(self.documentsList.selectedItems()) != 0)
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52
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53 @pyqtSlot()
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54 def on_addButton_clicked(self):
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55 """
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56 Private slot to add documents to the help database.
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57 """
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58 fileNames = E5FileDialog.getOpenFileNames(
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59 self,
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60 self.trUtf8("Add Documentation"),
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61 "",
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62 self.trUtf8("Qt Compressed Help Files (*.qch)"))
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63 if not fileNames:
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64 return
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65
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66 for fileName in fileNames:
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67 ns = QHelpEngineCore.namespaceName(fileName)
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68 if not ns:
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69 E5MessageBox.warning(
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70 self,
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71 self.trUtf8("Add Documentation"),
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72 self.trUtf8(
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73 """The file <b>{0}</b> is not a valid"""
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74 """ Qt Help File.""").format(fileName)
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75 )
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76 continue
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77
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78 if len(self.documentsList.findItems(ns, Qt.MatchFixedString)):
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79 E5MessageBox.warning(
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80 self,
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81 self.trUtf8("Add Documentation"),
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82 self.trUtf8(
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83 """The namespace <b>{0}</b> is already registered.""")
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84 .format(ns)
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85 )
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86 continue
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87
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88 self.__engine.registerDocumentation(fileName)
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89 self.documentsList.addItem(ns)
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90 self.__registeredDocs.append(ns)
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91 if ns in self.__unregisteredDocs:
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92 self.__unregisteredDocs.remove(ns)
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93
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94 @pyqtSlot()
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95 def on_removeButton_clicked(self):
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96 """
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97 Private slot to remove a document from the help database.
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98 """
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99 res = E5MessageBox.question(
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100 self,
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101 self.trUtf8("Remove Documentation"),
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102 self.trUtf8(
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103 """Do you really want to remove the selected documentation """
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104 """sets from the database?"""))
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105 if not res:
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106 return
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107
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108 openedDocs = self.__mw.getSourceFileList()
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109
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110 items = self.documentsList.selectedItems()
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111 for item in items:
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112 ns = item.text()
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113 if ns in list(openedDocs.values()):
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114 res = E5MessageBox.yesNo(
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115 self,
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116 self.trUtf8("Remove Documentation"),
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117 self.trUtf8(
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118 """Some documents currently opened reference the """
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119 """documentation you are attempting to remove. """
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120 """Removing the documentation will close those """
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121 """documents. Remove anyway?"""),
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122 icon=E5MessageBox.Warning)
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123 if not res:
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124 return
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125 self.__unregisteredDocs.append(ns)
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126 for id in openedDocs:
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127 if openedDocs[id] == ns and id not in self.__tabsToClose:
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128 self.__tabsToClose.append(id)
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129 itm = self.documentsList.takeItem(self.documentsList.row(item))
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130 del itm
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131
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132 self.__engine.unregisterDocumentation(ns)
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133
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134 if self.documentsList.count():
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135 self.documentsList.setCurrentRow(
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136 0, QItemSelectionModel.ClearAndSelect)
0
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137
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138 def hasChanges(self):
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139 """
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140 Public slot to test the dialog for changes.
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141
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142 @return flag indicating presence of changes
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143 """
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144 return len(self.__registeredDocs) > 0 or \
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145 len(self.__unregisteredDocs) > 0
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146
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147 def getTabsToClose(self):
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148 """
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149 Public method to get the list of tabs to close.
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150
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151 @return list of tab ids to be closed (list of integers)
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152 """
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153 return self.__tabsToClose

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