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1 # -*- coding: utf-8 -*- |
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2 |
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3 # Copyright (c) 2009 - 2021 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 enter lexer associations for the project. |
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8 """ |
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9 |
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10 import os |
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11 |
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12 from PyQt5.QtCore import Qt, pyqtSlot |
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13 from PyQt5.QtWidgets import QHeaderView, QTreeWidgetItem, QDialog |
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14 |
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15 from .Ui_LexerAssociationDialog import Ui_LexerAssociationDialog |
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16 |
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17 |
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18 class LexerAssociationDialog(QDialog, Ui_LexerAssociationDialog): |
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19 """ |
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20 Class implementing a dialog to enter lexer associations for the project. |
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21 """ |
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22 def __init__(self, project, parent=None): |
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23 """ |
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24 Constructor |
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25 |
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26 @param project reference to the project object |
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27 @param parent reference to the parent widget (QWidget) |
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28 """ |
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29 super().__init__(parent) |
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30 self.setupUi(self) |
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31 |
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32 self.editorLexerList.headerItem().setText( |
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33 self.editorLexerList.columnCount(), "") |
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34 header = self.editorLexerList.header() |
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35 header.setSectionResizeMode(QHeaderView.ResizeMode.ResizeToContents) |
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36 header.setSortIndicator(0, Qt.SortOrder.AscendingOrder) |
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37 |
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38 try: |
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39 self.extsep = os.extsep |
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40 except AttributeError: |
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41 self.extsep = "." |
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42 |
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43 self.extras = ["-----------", self.tr("Alternative")] |
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44 |
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45 import QScintilla.Lexers |
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46 languages = ( |
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47 [''] + |
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48 sorted(QScintilla.Lexers.getSupportedLanguages().keys()) + |
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49 self.extras |
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50 ) |
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51 for lang in languages: |
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52 self.editorLexerCombo.addItem( |
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53 QScintilla.Lexers.getLanguageIcon(lang, False), |
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54 lang) |
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55 |
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56 from pygments.lexers import get_all_lexers |
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57 pygmentsLexers = [''] + sorted(lex[0] for lex in get_all_lexers()) |
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58 self.pygmentsLexerCombo.addItems(pygmentsLexers) |
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59 |
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60 # set initial values |
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61 self.project = project |
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62 for ext, lexer in list(self.project.pdata["LEXERASSOCS"].items()): |
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63 QTreeWidgetItem(self.editorLexerList, [ext, lexer]) |
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64 self.editorLexerList.sortByColumn(0, Qt.SortOrder.AscendingOrder) |
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65 |
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66 @pyqtSlot() |
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67 def on_addLexerButton_clicked(self): |
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68 """ |
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69 Private slot to add the lexer association displayed to the list. |
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70 """ |
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71 ext = self.editorFileExtEdit.text() |
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72 if ext.startswith(self.extsep): |
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73 ext.replace(self.extsep, "") |
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74 lexer = self.editorLexerCombo.currentText() |
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75 if lexer in self.extras: |
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76 pygmentsLexer = self.pygmentsLexerCombo.currentText() |
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77 if not pygmentsLexer: |
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78 lexer = pygmentsLexer |
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79 else: |
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80 lexer = "Pygments|{0}".format(pygmentsLexer) |
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81 if ext and lexer: |
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82 itmList = self.editorLexerList.findItems( |
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83 ext, Qt.MatchFlags(Qt.MatchFlag.MatchExactly), 0) |
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84 if itmList: |
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85 index = self.editorLexerList.indexOfTopLevelItem(itmList[0]) |
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86 itm = self.editorLexerList.takeTopLevelItem(index) |
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87 # __IGNORE_WARNING__ |
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88 del itm |
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89 QTreeWidgetItem(self.editorLexerList, [ext, lexer]) |
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90 self.editorFileExtEdit.clear() |
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91 self.editorLexerCombo.setCurrentIndex(0) |
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92 self.pygmentsLexerCombo.setCurrentIndex(0) |
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93 self.editorLexerList.sortItems( |
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94 self.editorLexerList.sortColumn(), |
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95 self.editorLexerList.header().sortIndicatorOrder()) |
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96 |
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97 @pyqtSlot() |
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98 def on_deleteLexerButton_clicked(self): |
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99 """ |
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100 Private slot to delete the currently selected lexer association of the |
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101 list. |
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102 """ |
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103 itmList = self.editorLexerList.selectedItems() |
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104 if itmList: |
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105 index = self.editorLexerList.indexOfTopLevelItem(itmList[0]) |
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106 itm = self.editorLexerList.takeTopLevelItem(index) |
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107 # __IGNORE_WARNING__ |
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108 del itm |
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109 |
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110 self.editorLexerList.clearSelection() |
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111 self.editorFileExtEdit.clear() |
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112 self.editorLexerCombo.setCurrentIndex(0) |
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113 |
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114 def on_editorLexerList_itemClicked(self, itm, column): |
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115 """ |
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116 Private slot to handle the clicked signal of the lexer association |
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117 list. |
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118 |
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119 @param itm reference to the selecte item (QTreeWidgetItem) |
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120 @param column column the item was clicked or activated (integer) |
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121 (ignored) |
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122 """ |
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123 if itm is None: |
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124 self.editorFileExtEdit.clear() |
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125 self.editorLexerCombo.setCurrentIndex(0) |
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126 self.pygmentsLexerCombo.setCurrentIndex(0) |
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127 else: |
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128 self.editorFileExtEdit.setText(itm.text(0)) |
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129 lexer = itm.text(1) |
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130 if lexer.startswith("Pygments|"): |
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131 pygmentsLexer = lexer.split("|")[1] |
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132 pygmentsIndex = self.pygmentsLexerCombo.findText(pygmentsLexer) |
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133 lexer = self.tr("Alternative") |
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134 else: |
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135 pygmentsIndex = 0 |
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136 index = self.editorLexerCombo.findText(lexer) |
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137 self.editorLexerCombo.setCurrentIndex(index) |
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138 self.pygmentsLexerCombo.setCurrentIndex(pygmentsIndex) |
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139 |
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140 def on_editorLexerList_itemActivated(self, itm, column): |
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141 """ |
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142 Private slot to handle the activated signal of the lexer association |
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143 list. |
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144 |
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145 @param itm reference to the selecte item (QTreeWidgetItem) |
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146 @param column column the item was clicked or activated (integer) |
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147 (ignored) |
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148 """ |
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149 self.on_editorLexerList_itemClicked(itm, column) |
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150 |
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151 @pyqtSlot(int) |
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152 def on_editorLexerCombo_currentIndexChanged(self, index): |
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153 """ |
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154 Private slot to handle the selection of a lexer. |
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155 |
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156 @param index index of the current item |
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157 @type int |
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158 """ |
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159 text = self.editorLexerCombo.itemText(index) |
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160 if text in self.extras: |
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161 self.pygmentsLexerCombo.setEnabled(True) |
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162 self.pygmentsLabel.setEnabled(True) |
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163 else: |
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164 self.pygmentsLexerCombo.setEnabled(False) |
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165 self.pygmentsLabel.setEnabled(False) |
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166 |
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167 def transferData(self): |
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168 """ |
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169 Public slot to transfer the associations into the projects data |
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170 structure. |
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171 """ |
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172 self.project.pdata["LEXERASSOCS"] = {} |
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173 for index in range(self.editorLexerList.topLevelItemCount()): |
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174 itm = self.editorLexerList.topLevelItem(index) |
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175 pattern = itm.text(0) |
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176 self.project.pdata["LEXERASSOCS"][pattern] = itm.text(1) |