Mercurial Repositories > eric / file comparison
comparison: Helpviewer/SearchWidget.py
Helpviewer/SearchWidget.py
- changeset 0
- de9c2efb9d02
- child 11
- b0996e4a289e
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| -1:000000000000 | 0:de9c2efb9d02 |
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2009 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the search bar for the web browser. | |
| 8 """ | |
| 9 | |
| 10 from PyQt4.QtCore import * | |
| 11 from PyQt4.QtGui import * | |
| 12 | |
| 13 from Ui_SearchWidget import Ui_SearchWidget | |
| 14 | |
| 15 import UI.PixmapCache | |
| 16 | |
| 17 class SearchWidget(QWidget, Ui_SearchWidget): | |
| 18 """ | |
| 19 Class implementing the search bar for the web browser. | |
| 20 """ | |
| 21 def __init__(self, mainWindow, parent = None): | |
| 22 """ | |
| 23 Constructor | |
| 24 | |
| 25 @param mainWindow reference to the main window (QMainWindow) | |
| 26 @param parent parent widget of this dialog (QWidget) | |
| 27 """ | |
| 28 QWidget.__init__(self, parent) | |
| 29 self.setupUi(self) | |
| 30 | |
| 31 self.__mainWindow = mainWindow | |
| 32 | |
| 33 self.wrapCheckBox.setChecked(True) | |
| 34 self.closeButton.setIcon(UI.PixmapCache.getIcon("close.png")) | |
| 35 self.findPrevButton.setIcon(UI.PixmapCache.getIcon("1leftarrow.png")) | |
| 36 self.findNextButton.setIcon(UI.PixmapCache.getIcon("1rightarrow.png")) | |
| 37 | |
| 38 self.__defaultBaseColor = \ | |
| 39 self.findtextCombo.lineEdit().palette().color(QPalette.Base) | |
| 40 self.__defaultTextColor = \ | |
| 41 self.findtextCombo.lineEdit().palette().color(QPalette.Text) | |
| 42 | |
| 43 self.findHistory = [] | |
| 44 self.havefound = False | |
| 45 self.__findBackwards = False | |
| 46 | |
| 47 self.connect(self.findtextCombo.lineEdit(), SIGNAL("returnPressed()"), | |
| 48 self.__findByReturnPressed) | |
| 49 | |
| 50 def on_findtextCombo_editTextChanged(self, txt): | |
| 51 """ | |
| 52 Private slot to enable/disable the find buttons. | |
| 53 | |
| 54 @param txt text of the combobox (string) | |
| 55 """ | |
| 56 self.findPrevButton.setEnabled(txt) | |
| 57 self.findNextButton.setEnabled(txt) | |
| 58 | |
| 59 def __findNextPrev(self): | |
| 60 """ | |
| 61 Private slot to find the next occurrence of text. | |
| 62 """ | |
| 63 self.infoLabel.clear() | |
| 64 self.__setFindtextComboBackground(False) | |
| 65 | |
| 66 if not self.havefound or not self.findtextCombo.currentText(): | |
| 67 self.showFind() | |
| 68 return | |
| 69 | |
| 70 if not self.__mainWindow.currentBrowser().findNextPrev( | |
| 71 self.findtextCombo.currentText(), | |
| 72 self.caseCheckBox.isChecked(), | |
| 73 self.__findBackwards, | |
| 74 self.wrapCheckBox.isChecked()): | |
| 75 self.infoLabel.setText(self.trUtf8("Expression was not found.")) | |
| 76 self.__setFindtextComboBackground(True) | |
| 77 | |
| 78 @pyqtSlot() | |
| 79 def on_findNextButton_clicked(self): | |
| 80 """ | |
| 81 Private slot to find the next occurrence. | |
| 82 """ | |
| 83 txt = self.findtextCombo.currentText() | |
| 84 | |
| 85 # This moves any previous occurrence of this statement to the head | |
| 86 # of the list and updates the combobox | |
| 87 if txt in self.findHistory: | |
| 88 self.findHistory.remove(txt) | |
| 89 self.findHistory.insert(0, txt) | |
| 90 self.findtextCombo.clear() | |
| 91 self.findtextCombo.addItems(self.findHistory) | |
| 92 | |
| 93 self.__findBackwards = False | |
| 94 self.__findNextPrev() | |
| 95 | |
| 96 def findNext(self): | |
| 97 """ | |
| 98 Public slot to find the next occurrence. | |
| 99 """ | |
| 100 self.on_findNextButton_clicked() | |
| 101 | |
| 102 @pyqtSlot() | |
| 103 def on_findPrevButton_clicked(self): | |
| 104 """ | |
| 105 Private slot to find the previous occurrence. | |
| 106 """ | |
| 107 txt = self.findtextCombo.currentText() | |
| 108 | |
| 109 # This moves any previous occurrence of this statement to the head | |
| 110 # of the list and updates the combobox | |
| 111 if txt in self.findHistory: | |
| 112 self.findHistory.remove(txt) | |
| 113 self.findHistory.insert(0, txt) | |
| 114 self.findtextCombo.clear() | |
| 115 self.findtextCombo.addItems(self.findHistory) | |
| 116 | |
| 117 self.__findBackwards = True | |
| 118 self.__findNextPrev() | |
| 119 | |
| 120 def findPrevious(self): | |
| 121 """ | |
| 122 Public slot to find the previous occurrence. | |
| 123 """ | |
| 124 self.on_findPrevButton_clicked() | |
| 125 | |
| 126 def __findByReturnPressed(self): | |
| 127 """ | |
| 128 Private slot to handle the returnPressed signal of the findtext combobox. | |
| 129 """ | |
| 130 if self.__findBackwards: | |
| 131 self.on_findPrevButton_clicked() | |
| 132 else: | |
| 133 self.on_findNextButton_clicked() | |
| 134 | |
| 135 def showFind(self): | |
| 136 """ | |
| 137 Public method to display this dialog. | |
| 138 """ | |
| 139 self.havefound = True | |
| 140 self.__findBackwards = False | |
| 141 | |
| 142 self.findtextCombo.clear() | |
| 143 self.findtextCombo.addItems(self.findHistory) | |
| 144 self.findtextCombo.setEditText('') | |
| 145 self.findtextCombo.setFocus() | |
| 146 | |
| 147 self.caseCheckBox.setChecked(False) | |
| 148 | |
| 149 if self.__mainWindow.currentBrowser().hasSelection(): | |
| 150 self.findtextCombo.setEditText( | |
| 151 self.__mainWindow.currentBrowser().selectedText()) | |
| 152 | |
| 153 self.__setFindtextComboBackground(False) | |
| 154 self.show() | |
| 155 | |
| 156 @pyqtSlot() | |
| 157 def on_closeButton_clicked(self): | |
| 158 """ | |
| 159 Private slot to close the widget. | |
| 160 """ | |
| 161 self.close() | |
| 162 | |
| 163 def keyPressEvent(self, event): | |
| 164 """ | |
| 165 Protected slot to handle key press events. | |
| 166 | |
| 167 @param event reference to the key press event (QKeyEvent) | |
| 168 """ | |
| 169 if event.key() == Qt.Key_Escape: | |
| 170 cb = self.__mainWindow.currentBrowser() | |
| 171 if cb: | |
| 172 cb.setFocus(Qt.ActiveWindowFocusReason) | |
| 173 event.accept() | |
| 174 self.close() | |
| 175 | |
| 176 def __setFindtextComboBackground(self, error): | |
| 177 """ | |
| 178 Private slot to change the findtext combo background to indicate errors. | |
| 179 | |
| 180 @param error flag indicating an error condition (boolean) | |
| 181 """ | |
| 182 le = self.findtextCombo.lineEdit() | |
| 183 p = le.palette() | |
| 184 if error: | |
| 185 p.setBrush(QPalette.Base, QBrush(QColor("#FF6666"))) | |
| 186 p.setBrush(QPalette.Text, QBrush(QColor("#FFFFFF"))) | |
| 187 else: | |
| 188 p.setBrush(QPalette.Base, self.__defaultBaseColor) | |
| 189 p.setBrush(QPalette.Text, self.__defaultTextColor) | |
| 190 le.setPalette(p) | |
| 191 le.update() |
