Mercurial Repositories > eric / file comparison
comparison: E5Gui/E5TextEditSearchWidget.py
E5Gui/E5TextEditSearchWidget.py
- changeset 4039
- 661167a99aef
- child 4586
- 9221c0c5c66f
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| 4038:175f13f4eb9d | 4039:661167a99aef |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2012 - 2015 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a horizontal search widget for QTextEdit. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 from PyQt5.QtCore import pyqtSlot, Qt | |
| 13 from PyQt5.QtGui import QTextDocument | |
| 14 from PyQt5.QtWidgets import QWidget | |
| 15 | |
| 16 from E5Gui import E5MessageBox | |
| 17 | |
| 18 from .Ui_E5TextEditSearchWidget import Ui_E5TextEditSearchWidget | |
| 19 | |
| 20 import UI.PixmapCache | |
| 21 | |
| 22 | |
| 23 class E5TextEditSearchWidget(QWidget, Ui_E5TextEditSearchWidget): | |
| 24 """ | |
| 25 Class implementing a horizontal search widget for QTextEdit. | |
| 26 """ | |
| 27 def __init__(self, parent=None): | |
| 28 """ | |
| 29 Constructor | |
| 30 | |
| 31 @param parent reference to the parent widget (QWidget) | |
| 32 """ | |
| 33 super(E5TextEditSearchWidget, self).__init__(parent) | |
| 34 self.setupUi(self) | |
| 35 | |
| 36 self.__textedit = None | |
| 37 self.__findBackwards = True | |
| 38 | |
| 39 self.findPrevButton.setIcon(UI.PixmapCache.getIcon("1leftarrow.png")) | |
| 40 self.findNextButton.setIcon(UI.PixmapCache.getIcon("1rightarrow.png")) | |
| 41 | |
| 42 self.findHistory = [] | |
| 43 | |
| 44 self.findtextCombo.setCompleter(None) | |
| 45 self.findtextCombo.lineEdit().returnPressed.connect( | |
| 46 self.__findByReturnPressed) | |
| 47 | |
| 48 self.__setSearchButtons(False) | |
| 49 | |
| 50 def attachTextEdit(self, textedit): | |
| 51 """ | |
| 52 Public method to attach a QTextEdit widget. | |
| 53 | |
| 54 @param textedit reference to the QTextEdit to be attached (QTextEdit) | |
| 55 """ | |
| 56 self.__textedit = textedit | |
| 57 | |
| 58 def keyPressEvent(self, event): | |
| 59 """ | |
| 60 Protected slot to handle key press events. | |
| 61 | |
| 62 @param event reference to the key press event (QKeyEvent) | |
| 63 """ | |
| 64 if self.__textedit and event.key() == Qt.Key_Escape: | |
| 65 self.__textedit.setFocus(Qt.ActiveWindowFocusReason) | |
| 66 event.accept() | |
| 67 | |
| 68 @pyqtSlot(str) | |
| 69 def on_findtextCombo_editTextChanged(self, txt): | |
| 70 """ | |
| 71 Private slot to enable/disable the find buttons. | |
| 72 | |
| 73 @param txt text of the combobox (string) | |
| 74 """ | |
| 75 self.__setSearchButtons(txt != "") | |
| 76 | |
| 77 def __setSearchButtons(self, enabled): | |
| 78 """ | |
| 79 Private slot to set the state of the search buttons. | |
| 80 | |
| 81 @param enabled flag indicating the state (boolean) | |
| 82 """ | |
| 83 self.findPrevButton.setEnabled(enabled) | |
| 84 self.findNextButton.setEnabled(enabled) | |
| 85 | |
| 86 def __findByReturnPressed(self): | |
| 87 """ | |
| 88 Private slot to handle the returnPressed signal of the findtext | |
| 89 combobox. | |
| 90 """ | |
| 91 self.__find(self.__findBackwards) | |
| 92 | |
| 93 @pyqtSlot() | |
| 94 def on_findPrevButton_clicked(self): | |
| 95 """ | |
| 96 Private slot to find the previous occurrence. | |
| 97 """ | |
| 98 self.__find(True) | |
| 99 | |
| 100 @pyqtSlot() | |
| 101 def on_findNextButton_clicked(self): | |
| 102 """ | |
| 103 Private slot to find the next occurrence. | |
| 104 """ | |
| 105 self.__find(False) | |
| 106 | |
| 107 def __find(self, backwards): | |
| 108 """ | |
| 109 Private method to search the associated text edit. | |
| 110 | |
| 111 @param backwards flag indicating a backwards search (boolean) | |
| 112 """ | |
| 113 if not self.__textedit: | |
| 114 return | |
| 115 | |
| 116 txt = self.findtextCombo.currentText() | |
| 117 self.__findBackwards = backwards | |
| 118 | |
| 119 # This moves any previous occurrence of this statement to the head | |
| 120 # of the list and updates the combobox | |
| 121 if txt in self.findHistory: | |
| 122 self.findHistory.remove(txt) | |
| 123 self.findHistory.insert(0, txt) | |
| 124 self.findtextCombo.clear() | |
| 125 self.findtextCombo.addItems(self.findHistory) | |
| 126 | |
| 127 if backwards: | |
| 128 flags = QTextDocument.FindFlags(QTextDocument.FindBackward) | |
| 129 else: | |
| 130 flags = QTextDocument.FindFlags() | |
| 131 if self.caseCheckBox.isChecked(): | |
| 132 flags |= QTextDocument.FindCaseSensitively | |
| 133 if self.wordCheckBox.isChecked(): | |
| 134 flags |= QTextDocument.FindWholeWords | |
| 135 ok = self.__textedit.find(txt, flags) | |
| 136 | |
| 137 if not ok: | |
| 138 E5MessageBox.information( | |
| 139 self, | |
| 140 self.tr("Find"), | |
| 141 self.tr("""'{0}' was not found.""").format(txt)) |
