WebBrowser/SearchWidget.py

Sat, 19 Mar 2016 20:07:34 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sat, 19 Mar 2016 20:07:34 +0100
branch
QtWebEngine
changeset 4881
c269212cceac
parent 4715
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child 5389
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permissions
-rw-r--r--

Continued porting the web browser.

- did some Qt 5.6 related changes

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2009 - 2016 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 __future__ import unicode_literals
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12 from PyQt5.QtCore import pyqtSlot, Qt
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13 from PyQt5.QtGui import QPalette, QBrush, QColor
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14 from PyQt5.QtWidgets import QWidget
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16 from .Ui_SearchWidget import Ui_SearchWidget
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17
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18 import UI.PixmapCache
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20
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21 class SearchWidget(QWidget, Ui_SearchWidget):
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22 """
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23 Class implementing the search bar for the web browser.
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24 """
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25 def __init__(self, mainWindow, parent=None):
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26 """
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27 Constructor
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28
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29 @param mainWindow reference to the main window (QMainWindow)
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30 @param parent parent widget of this dialog (QWidget)
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31 """
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32 super(SearchWidget, self).__init__(parent)
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33 self.setupUi(self)
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34
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35 self.__mainWindow = mainWindow
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36
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37 self.closeButton.setIcon(UI.PixmapCache.getIcon("close.png"))
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38 self.findPrevButton.setIcon(UI.PixmapCache.getIcon("1leftarrow.png"))
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39 self.findNextButton.setIcon(UI.PixmapCache.getIcon("1rightarrow.png"))
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40
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41 self.__defaultBaseColor = \
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42 self.findtextCombo.lineEdit().palette().color(QPalette.Base)
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43 self.__defaultTextColor = \
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44 self.findtextCombo.lineEdit().palette().color(QPalette.Text)
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45
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46 self.__findHistory = []
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47 self.__havefound = False
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48 self.__findBackwards = False
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49
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50 self.findtextCombo.setCompleter(None)
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51 self.findtextCombo.lineEdit().returnPressed.connect(
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52 self.__findByReturnPressed)
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53 self.findtextCombo.lineEdit().textEdited.connect(
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54 self.__searchTextEdited)
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55
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56 def on_findtextCombo_editTextChanged(self, txt):
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57 """
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58 Private slot to enable/disable the find buttons.
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59
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60 @param txt text of the combobox (string)
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61 """
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62 self.findPrevButton.setEnabled(txt != "")
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63 self.findNextButton.setEnabled(txt != "")
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65 def __searchTextEdited(self, txt):
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66 """
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67 Private slot to perform an incremental search.
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68
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69 @param txt current text of the search combos line edit (string)
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70 (unused)
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71 """
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72 self.__findNextPrev()
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73
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74 def __findNextPrev(self):
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75 """
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76 Private slot to find the next occurrence of text.
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77 """
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78 self.infoLabel.clear()
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79 self.__setFindtextComboBackground(False)
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80
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81 if not self.findtextCombo.currentText():
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82 return
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83
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84 self.__mainWindow.currentBrowser().findNextPrev(
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85 self.findtextCombo.currentText(),
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86 self.caseCheckBox.isChecked(),
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87 self.__findBackwards,
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88 self.__findNextPrevCallback)
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89
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90 def __findNextPrevCallback(self, found):
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91 """
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92 Private method to process the result of the last search.
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93
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94 @param found flag indicating if the last search succeeded
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95 @type bool
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96 """
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97 if not found:
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98 self.infoLabel.setText(self.tr("Expression was not found."))
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99 self.__setFindtextComboBackground(True)
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100
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101 @pyqtSlot()
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102 def on_findNextButton_clicked(self):
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103 """
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104 Private slot to find the next occurrence.
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105 """
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106 txt = self.findtextCombo.currentText()
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107
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108 # This moves any previous occurrence of this statement to the head
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109 # of the list and updates the combobox
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110 if txt in self.__findHistory:
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111 self.__findHistory.remove(txt)
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112 self.__findHistory.insert(0, txt)
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113 self.findtextCombo.clear()
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114 self.findtextCombo.addItems(self.__findHistory)
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115
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116 self.__findBackwards = False
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117 self.__findNextPrev()
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118
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119 def findNext(self):
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120 """
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121 Public slot to find the next occurrence.
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122 """
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123 if not self.__havefound or not self.findtextCombo.currentText():
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124 self.showFind()
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125 return
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126
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127 self.on_findNextButton_clicked()
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128
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
129 @pyqtSlot()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
130 def on_findPrevButton_clicked(self):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
131 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
132 Private slot to find the previous occurrence.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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133 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
134 txt = self.findtextCombo.currentText()
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parents:
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135
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parents:
diff changeset
136 # This moves any previous occurrence of this statement to the head
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parents:
diff changeset
137 # of the list and updates the combobox
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 4631
diff changeset
138 if txt in self.__findHistory:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 4631
diff changeset
139 self.__findHistory.remove(txt)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 4631
diff changeset
140 self.__findHistory.insert(0, txt)
0
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parents:
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141 self.findtextCombo.clear()
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parents: 4631
diff changeset
142 self.findtextCombo.addItems(self.__findHistory)
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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143
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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144 self.__findBackwards = True
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
145 self.__findNextPrev()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
146
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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147 def findPrevious(self):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
148 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
149 Public slot to find the previous occurrence.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
150 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 4631
diff changeset
151 if not self.__havefound or not self.findtextCombo.currentText():
376
0c4c359c4870 Added option to highlight all occurences to the web browser search widget.
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parents: 359
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152 self.showFind()
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parents: 359
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153 return
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parents: 359
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154
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
155 self.on_findPrevButton_clicked()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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156
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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157 def __findByReturnPressed(self):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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158 """
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parents: 2954
diff changeset
159 Private slot to handle the returnPressed signal of the findtext
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parents: 2954
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160 combobox.
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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161 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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162 if self.__findBackwards:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
163 self.on_findPrevButton_clicked()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
164 else:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
165 self.on_findNextButton_clicked()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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166
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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167 def showFind(self):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
168 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
169 Public method to display this dialog.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
170 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 4631
diff changeset
171 self.__havefound = True
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
172 self.__findBackwards = False
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
173
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
174 self.findtextCombo.clear()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 4631
diff changeset
175 self.findtextCombo.addItems(self.__findHistory)
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
176 self.findtextCombo.setEditText('')
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
177 self.findtextCombo.setFocus()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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178
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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179 self.caseCheckBox.setChecked(False)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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180
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
181 if self.__mainWindow.currentBrowser().hasSelection():
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
182 self.findtextCombo.setEditText(
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
183 self.__mainWindow.currentBrowser().selectedText())
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
184
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
185 self.__setFindtextComboBackground(False)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
186 self.show()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
187
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
188 @pyqtSlot()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
189 def on_closeButton_clicked(self):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
190 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
191 Private slot to close the widget.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
192 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
193 self.close()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
194
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
195 def keyPressEvent(self, event):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
196 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
197 Protected slot to handle key press events.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
198
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
199 @param event reference to the key press event (QKeyEvent)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
200 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
201 if event.key() == Qt.Key_Escape:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
202 cb = self.__mainWindow.currentBrowser()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
203 if cb:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
204 cb.setFocus(Qt.ActiveWindowFocusReason)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
205 event.accept()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
206 self.close()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
207
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
208 def __setFindtextComboBackground(self, error):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
209 """
2999
28c75409a78f Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2954
diff changeset
210 Private slot to change the findtext combo background to indicate
28c75409a78f Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2954
diff changeset
211 errors.
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
212
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
213 @param error flag indicating an error condition (boolean)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
214 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
215 le = self.findtextCombo.lineEdit()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
216 p = le.palette()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
217 if error:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
218 p.setBrush(QPalette.Base, QBrush(QColor("#FF6666")))
359
679fa2357b0c Changed text color of the web browser search entry.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 13
diff changeset
219 p.setBrush(QPalette.Text, QBrush(QColor("#000000")))
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
220 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
221 p.setBrush(QPalette.Base, self.__defaultBaseColor)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
222 p.setBrush(QPalette.Text, self.__defaultTextColor)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
223 le.setPalette(p)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
224 le.update()

eric ide

mercurial