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133 lines
4.5 KiB
Python
133 lines
4.5 KiB
Python
# -*- coding: utf-8 -*-
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"""
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/***************************************************************************
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Name : DB Manager
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Description : Database manager plugin for QuantumGIS
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Date : May 23, 2011
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copyright : (C) 2011 by Giuseppe Sucameli
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email : brush.tyler@gmail.com
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The content of this file is based on
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- QTextEdit with autocompletion using pyqt by rowinggolfer (GPLv2 license)
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see http://rowinggolfer.blogspot.com/2010/08/qtextedit-with-autocompletion-using.html
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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"""
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from PyQt4.QtGui import *
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from PyQt4.QtCore import *
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class SqlCompleter(QCompleter):
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def __init__(self, editor, db=None):
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# get the wordlist
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dictionary = None
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if db:
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dictionary = db.connector.getSqlDictionary()
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if not dictionary:
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# use the generic sql dictionary
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from .sql_dictionary import getSqlDictionary
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dictionary = getSqlDictionary()
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wordlist = QStringList()
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for name, value in dictionary.iteritems():
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wordlist << value
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wordlist = QStringList() << list(set( wordlist )) # remove duplicates
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# setup the completer
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QCompleter.__init__(self, sorted(wordlist), editor)
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self.setModelSorting(QCompleter.CaseSensitivelySortedModel)
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self.setWrapAround(False)
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if isinstance(editor, CompletionTextEdit):
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editor.setCompleter(self)
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class CompletionTextEdit(QTextEdit):
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def __init__(self, *args, **kwargs):
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QTextEdit.__init__(self, *args, **kwargs)
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self.completer = None
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def setCompleter(self, completer):
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if self.completer:
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self.disconnect(self.completer, 0, self, 0)
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if not completer:
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return
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completer.setWidget(self)
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completer.setCompletionMode(QCompleter.PopupCompletion)
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completer.setCaseSensitivity(Qt.CaseInsensitive)
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self.completer = completer
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self.connect(self.completer, SIGNAL("activated(const QString&)"), self.insertCompletion)
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def insertCompletion(self, completion):
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tc = self.textCursor()
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extra = completion.length() - self.completer.completionPrefix().length()
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tc.movePosition(QTextCursor.Left)
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tc.movePosition(QTextCursor.EndOfWord)
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tc.insertText(completion.right(extra))
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self.setTextCursor(tc)
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def textUnderCursor(self):
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tc = self.textCursor()
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tc.select(QTextCursor.WordUnderCursor)
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return tc.selectedText()
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def focusInEvent(self, event):
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if self.completer:
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self.completer.setWidget(self)
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QTextEdit.focusInEvent(self, event)
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def keyPressEvent(self, event):
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if self.completer and self.completer.popup().isVisible():
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if event.key() in (Qt.Key_Enter, Qt.Key_Return, Qt.Key_Escape, Qt.Key_Tab, Qt.Key_Backtab):
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event.ignore()
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return
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# has ctrl-E or ctrl-space been pressed??
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isShortcut = event.modifiers() == Qt.ControlModifier and event.key() in (Qt.Key_E, Qt.Key_Space)
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if not self.completer or not isShortcut:
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QTextEdit.keyPressEvent(self, event)
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# ctrl or shift key on it's own??
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ctrlOrShift = event.modifiers() in (Qt.ControlModifier, Qt.ShiftModifier)
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if ctrlOrShift and event.text().isEmpty():
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# ctrl or shift key on it's own
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return
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eow = QString("~!@#$%^&*()+{}|:\"<>?,./;'[]\\-=") # end of word
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hasModifier = event.modifiers() != Qt.NoModifier and not ctrlOrShift
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completionPrefix = self.textUnderCursor()
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if not isShortcut and (hasModifier or event.text().isEmpty() or
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completionPrefix.length() < 3 or eow.contains(event.text().right(1))):
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self.completer.popup().hide()
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return
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if completionPrefix != self.completer.completionPrefix():
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self.completer.setCompletionPrefix(completionPrefix)
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popup = self.completer.popup()
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popup.setCurrentIndex(self.completer.completionModel().index(0,0))
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cr = self.cursorRect()
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cr.setWidth(self.completer.popup().sizeHintForColumn(0)
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+ self.completer.popup().verticalScrollBar().sizeHint().width())
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self.completer.complete(cr) # popup it up!
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#if __name__ == "__main__":
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# app = QApplication([])
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# te = CompletionTextEdit()
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# SqlCompleter( te )
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# te.show()
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# app.exec_()
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