UI/SearchWidget.py

Sat, 14 Dec 2013 23:44:25 +0100

author
T.Rzepka <Tobias.Rzepka@gmail.com>
date
Sat, 14 Dec 2013 23:44:25 +0100
branch
Py2 comp.
changeset 3145
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parent 3058
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child 3161
06f57a834adf
permissions
-rw-r--r--

# __IGNORE_WARNING__ added/ removed.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2012 - 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 the search box for the shel, terminal and log viewer.
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8 """
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9
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10 from __future__ import unicode_literals
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11
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12 from PyQt4.QtCore import pyqtSlot, pyqtSignal, Qt
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13 from PyQt4.QtGui import QWidget, QSpacerItem, QSizePolicy
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14
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15 from .Ui_SearchWidget import Ui_SearchWidget
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16
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17 import UI.PixmapCache
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18
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19
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20 class SearchWidget(QWidget, Ui_SearchWidget):
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21 """
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22 Class implementing the search box for the shel, terminal and log viewer.
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23
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24 @signal searchNext(text, caseSensitive, wholeWord) emitted when the user
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25 pressed the next button (string, boolean, boolean)
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26 @signal searchPrevious(text, caseSensitive, wholeWord) emitted when the
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27 user pressed the previous button (string, boolean, boolean)
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28 """
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29 searchNext = pyqtSignal(str, bool, bool)
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30 searchPrevious = pyqtSignal(str, bool, bool)
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31
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32 def __init__(self, mainWindow, parent=None, spacer=True):
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33 """
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34 Constructor
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35
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36 @param mainWindow reference to the main window (QWidget)
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37 @param parent reference to the parent widget (QWidget)
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38 @param spacer flag indicating to add a vertical spacer to the
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39 main layout (boolean)
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40 """
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41 super(SearchWidget, self).__init__(parent)
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42 self.setupUi(self)
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43 if spacer:
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44 spacerItem = QSpacerItem(
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45 20, 1, QSizePolicy.Minimum, QSizePolicy.Expanding)
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46 self.verticalLayout.addItem(spacerItem)
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47 else:
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48 # change the size policy of the search combo if the spacer is not
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49 # wanted, i.e. it is below the to be searched widget
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50 sizePolicy = self.findtextCombo.sizePolicy()
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51 sizePolicy.setHorizontalPolicy(QSizePolicy.Expanding)
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52 self.findtextCombo.setSizePolicy(sizePolicy)
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53
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54 self.__mainWindow = mainWindow
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55 self.__findBackwards = True
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56
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57 self.closeButton.setIcon(UI.PixmapCache.getIcon("close.png"))
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58 self.findPrevButton.setIcon(UI.PixmapCache.getIcon("1leftarrow.png"))
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59 self.findNextButton.setIcon(UI.PixmapCache.getIcon("1rightarrow.png"))
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60
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61 self.findHistory = []
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62
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63 self.findtextCombo.lineEdit().returnPressed.connect(
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64 self.__findByReturnPressed)
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65
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66 @pyqtSlot()
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67 def on_closeButton_clicked(self):
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68 """
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69 Private slot to close the widget.
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70 """
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71 self.close()
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72
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73 def keyPressEvent(self, event):
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74 """
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75 Protected slot to handle key press events.
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76
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77 @param event reference to the key press event (QKeyEvent)
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78 """
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79 if event.key() == Qt.Key_Escape:
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80 self.__mainWindow.setFocus(Qt.ActiveWindowFocusReason)
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81 event.accept()
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82 self.close()
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83
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84 @pyqtSlot()
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85 def on_findNextButton_clicked(self):
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86 """
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87 Private slot to find the next occurrence.
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88 """
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89 txt = self.findtextCombo.currentText()
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90 self.__findBackwards = False
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91
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92 # This moves any previous occurrence of this statement to the head
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93 # of the list and updates the combobox
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94 if txt in self.findHistory:
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95 self.findHistory.remove(txt)
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96 self.findHistory.insert(0, txt)
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97 self.findtextCombo.clear()
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98 self.findtextCombo.addItems(self.findHistory)
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99
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100 self.searchNext.emit(
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101 txt,
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102 self.caseCheckBox.isChecked(),
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103 self.wordCheckBox.isChecked())
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104
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105 @pyqtSlot()
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106 def on_findPrevButton_clicked(self):
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107 """
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108 Private slot to find the previous occurrence.
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109 """
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110 txt = self.findtextCombo.currentText()
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111 self.__findBackwards = True
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112
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113 # This moves any previous occurrence of this statement to the head
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114 # of the list and updates the combobox
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115 if txt in self.findHistory:
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116 self.findHistory.remove(txt)
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117 self.findHistory.insert(0, txt)
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118 self.findtextCombo.clear()
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119 self.findtextCombo.addItems(self.findHistory)
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120
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121 self.searchPrevious.emit(
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122 txt,
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123 self.caseCheckBox.isChecked(),
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124 self.wordCheckBox.isChecked())
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125
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126 @pyqtSlot(str)
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127 def on_findtextCombo_editTextChanged(self, txt):
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128 """
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129 Private slot to enable/disable the find buttons.
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130
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131 @param txt text of the combobox (string)
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132 """
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133 self.__setSearchButtons(txt != "")
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134
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135 def __setSearchButtons(self, enabled):
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136 """
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Detlev Offenbach <detlev@die-offenbachs.de>
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137 Private slot to set the state of the search buttons.
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138
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139 @param enabled flag indicating the state (boolean)
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140 """
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Detlev Offenbach <detlev@die-offenbachs.de>
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141 self.findPrevButton.setEnabled(enabled)
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142 self.findNextButton.setEnabled(enabled)
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143
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144 def __findByReturnPressed(self):
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145 """
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146 Private slot to handle the returnPressed signal of the findtext
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147 combobox.
1823
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148 """
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Detlev Offenbach <detlev@die-offenbachs.de>
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149 if self.__findBackwards:
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150 self.on_findPrevButton_clicked()
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151 else:
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152 self.on_findNextButton_clicked()
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153
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Detlev Offenbach <detlev@die-offenbachs.de>
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154 def showFind(self, txt=""):
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155 """
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Detlev Offenbach <detlev@die-offenbachs.de>
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156 Public method to display this widget.
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157
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158 @param txt text to be shown in the combo (string)
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159 """
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Detlev Offenbach <detlev@die-offenbachs.de>
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160 self.findtextCombo.clear()
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161 self.findtextCombo.addItems(self.findHistory)
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162 self.findtextCombo.setEditText(txt)
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parents:
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163 self.findtextCombo.setFocus()
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164
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165 self.__setSearchButtons(txt != "")
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166
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parents:
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167 self.show()
1830
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parents: 1823
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168
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1823
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169 def searchStringFound(self, found):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1823
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170 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1823
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171 Public slot to indicate that the search string was found.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1823
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172
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parents: 1823
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173 @param found flag indicating success (boolean)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1823
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174 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1823
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175 if found:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1823
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176 self.statusLabel.clear()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1823
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177 else:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1823
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178 txt = self.findtextCombo.currentText()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2965
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179 self.statusLabel.setText(
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2965
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180 self.trUtf8("'{0}' was not found.").format(txt))

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