Helpviewer/SearchWidget.py

Sun, 20 Jun 2010 14:55:26 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sun, 20 Jun 2010 14:55:26 +0200
branch
5_0_x
changeset 361
6f27ebf7a105
parent 13
1af94a91f439
child 376
0c4c359c4870
child 792
a13346916170
permissions
-rw-r--r--

Changed text color of the web browser search entry.

0
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1 # -*- coding: utf-8 -*-
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2
13
1af94a91f439 Changed copyright for 2010.
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3 # Copyright (c) 2009 - 2010 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 the search bar for the web browser.
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8 """
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9
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10 from PyQt4.QtCore import *
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11 from PyQt4.QtGui import *
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12
12
1d8dd9706f46 First commit after changing to Python 3.1.
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13 from .Ui_SearchWidget import Ui_SearchWidget
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14
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15 import UI.PixmapCache
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16
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17 class SearchWidget(QWidget, Ui_SearchWidget):
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18 """
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19 Class implementing the search bar for the web browser.
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20 """
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21 def __init__(self, mainWindow, parent = None):
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22 """
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23 Constructor
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24
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25 @param mainWindow reference to the main window (QMainWindow)
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26 @param parent parent widget of this dialog (QWidget)
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27 """
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28 QWidget.__init__(self, parent)
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29 self.setupUi(self)
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30
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31 self.__mainWindow = mainWindow
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32
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33 self.wrapCheckBox.setChecked(True)
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34 self.closeButton.setIcon(UI.PixmapCache.getIcon("close.png"))
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35 self.findPrevButton.setIcon(UI.PixmapCache.getIcon("1leftarrow.png"))
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36 self.findNextButton.setIcon(UI.PixmapCache.getIcon("1rightarrow.png"))
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37
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38 self.__defaultBaseColor = \
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39 self.findtextCombo.lineEdit().palette().color(QPalette.Base)
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40 self.__defaultTextColor = \
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41 self.findtextCombo.lineEdit().palette().color(QPalette.Text)
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42
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43 self.findHistory = []
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44 self.havefound = False
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45 self.__findBackwards = False
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46
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47 self.connect(self.findtextCombo.lineEdit(), SIGNAL("returnPressed()"),
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48 self.__findByReturnPressed)
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49
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50 def on_findtextCombo_editTextChanged(self, txt):
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51 """
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52 Private slot to enable/disable the find buttons.
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53
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54 @param txt text of the combobox (string)
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55 """
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56 self.findPrevButton.setEnabled(txt != "")
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57 self.findNextButton.setEnabled(txt != "")
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58
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59 def __findNextPrev(self):
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60 """
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61 Private slot to find the next occurrence of text.
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62 """
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63 self.infoLabel.clear()
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64 self.__setFindtextComboBackground(False)
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65
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66 if not self.havefound or not self.findtextCombo.currentText():
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67 self.showFind()
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68 return
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69
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70 if not self.__mainWindow.currentBrowser().findNextPrev(
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71 self.findtextCombo.currentText(),
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72 self.caseCheckBox.isChecked(),
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73 self.__findBackwards,
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74 self.wrapCheckBox.isChecked()):
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75 self.infoLabel.setText(self.trUtf8("Expression was not found."))
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76 self.__setFindtextComboBackground(True)
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77
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78 @pyqtSlot()
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79 def on_findNextButton_clicked(self):
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80 """
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81 Private slot to find the next occurrence.
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82 """
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83 txt = self.findtextCombo.currentText()
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84
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85 # This moves any previous occurrence of this statement to the head
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86 # of the list and updates the combobox
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87 if txt in self.findHistory:
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88 self.findHistory.remove(txt)
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89 self.findHistory.insert(0, txt)
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90 self.findtextCombo.clear()
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91 self.findtextCombo.addItems(self.findHistory)
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92
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93 self.__findBackwards = False
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94 self.__findNextPrev()
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95
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96 def findNext(self):
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97 """
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98 Public slot to find the next occurrence.
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99 """
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100 self.on_findNextButton_clicked()
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101
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102 @pyqtSlot()
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103 def on_findPrevButton_clicked(self):
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104 """
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105 Private slot to find the previous occurrence.
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106 """
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107 txt = self.findtextCombo.currentText()
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108
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109 # This moves any previous occurrence of this statement to the head
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110 # of the list and updates the combobox
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111 if txt in self.findHistory:
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112 self.findHistory.remove(txt)
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113 self.findHistory.insert(0, txt)
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114 self.findtextCombo.clear()
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115 self.findtextCombo.addItems(self.findHistory)
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116
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117 self.__findBackwards = True
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118 self.__findNextPrev()
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119
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120 def findPrevious(self):
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121 """
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122 Public slot to find the previous occurrence.
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123 """
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124 self.on_findPrevButton_clicked()
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125
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126 def __findByReturnPressed(self):
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127 """
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128 Private slot to handle the returnPressed signal of the findtext combobox.
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129 """
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130 if self.__findBackwards:
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131 self.on_findPrevButton_clicked()
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132 else:
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133 self.on_findNextButton_clicked()
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134
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135 def showFind(self):
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136 """
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137 Public method to display this dialog.
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138 """
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139 self.havefound = True
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140 self.__findBackwards = False
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141
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142 self.findtextCombo.clear()
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143 self.findtextCombo.addItems(self.findHistory)
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144 self.findtextCombo.setEditText('')
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145 self.findtextCombo.setFocus()
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146
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147 self.caseCheckBox.setChecked(False)
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148
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149 if self.__mainWindow.currentBrowser().hasSelection():
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150 self.findtextCombo.setEditText(
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151 self.__mainWindow.currentBrowser().selectedText())
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152
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153 self.__setFindtextComboBackground(False)
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154 self.show()
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155
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156 @pyqtSlot()
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157 def on_closeButton_clicked(self):
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158 """
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159 Private slot to close the widget.
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160 """
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161 self.close()
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162
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163 def keyPressEvent(self, event):
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164 """
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165 Protected slot to handle key press events.
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166
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167 @param event reference to the key press event (QKeyEvent)
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168 """
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169 if event.key() == Qt.Key_Escape:
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170 cb = self.__mainWindow.currentBrowser()
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171 if cb:
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172 cb.setFocus(Qt.ActiveWindowFocusReason)
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173 event.accept()
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174 self.close()
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175
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176 def __setFindtextComboBackground(self, error):
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177 """
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178 Private slot to change the findtext combo background to indicate errors.
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179
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180 @param error flag indicating an error condition (boolean)
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181 """
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182 le = self.findtextCombo.lineEdit()
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183 p = le.palette()
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184 if error:
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185 p.setBrush(QPalette.Base, QBrush(QColor("#FF6666")))
361
6f27ebf7a105 Changed text color of the web browser search entry.
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186 p.setBrush(QPalette.Text, QBrush(QColor("#000000")))
0
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187 else:
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188 p.setBrush(QPalette.Base, self.__defaultBaseColor)
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189 p.setBrush(QPalette.Text, self.__defaultTextColor)
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190 le.setPalette(p)
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191 le.update()

eric ide

mercurial