99 lines
3.4 KiB
Python
99 lines
3.4 KiB
Python
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#!/usr/bin/env python
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#
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# Electrum - lightweight Bitcoin client
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# Copyright (C) 2012 thomasv@gitorious
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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 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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class PayToEdit(QTextEdit):
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def __init__(self, *args, **kwargs):
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QTextEdit.__init__(self, *args, **kwargs)
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self.document().contentsChanged.connect(self.update_size)
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self.heightMin = 0
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self.heightMax = 150
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self.setMinimumHeight(27)
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self.setMaximumHeight(27)
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#self.setStyleSheet("QTextEdit { border-style:solid; border-width: 1px;}")
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self.c = None
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def update_size(self):
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docHeight = self.document().size().height()
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if self.heightMin <= docHeight <= self.heightMax:
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self.setMinimumHeight(docHeight + 2)
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self.setMaximumHeight(docHeight + 2)
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def setCompleter(self, completer):
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self.c = completer
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self.c.setWidget(self)
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self.c.setCompletionMode(QCompleter.PopupCompletion)
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self.c.activated.connect(self.insertCompletion)
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def insertCompletion(self, completion):
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if self.c.widget() != self:
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return
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tc = self.textCursor()
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extra = completion.length() - self.c.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 keyPressEvent(self, e):
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if self.c.popup().isVisible():
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if e.key() in [Qt.Key_Enter, Qt.Key_Return]:
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e.ignore()
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return
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isShortcut = (e.modifiers() and Qt.ControlModifier) and e.key() == Qt.Key_E
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if not self.c or not isShortcut:
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QTextEdit.keyPressEvent(self, e)
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ctrlOrShift = e.modifiers() and (Qt.ControlModifier or Qt.ShiftModifier)
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if self.c is None or (ctrlOrShift and e.text().isEmpty()):
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return
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eow = QString("~!@#$%^&*()_+{}|:\"<>?,./;'[]\\-=")
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hasModifier = (e.modifiers() != Qt.NoModifier) and not ctrlOrShift;
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completionPrefix = self.textUnderCursor()
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if not isShortcut and (hasModifier or e.text().isEmpty() or completionPrefix.length() < 1 or eow.contains(e.text().right(1)) ):
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self.c.popup().hide()
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return
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if completionPrefix != self.c.completionPrefix():
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self.c.setCompletionPrefix(completionPrefix);
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self.c.popup().setCurrentIndex(self.c.completionModel().index(0, 0))
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cr = self.cursorRect()
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cr.setWidth(self.c.popup().sizeHintForColumn(0) + self.c.popup().verticalScrollBar().sizeHint().width())
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self.c.complete(cr)
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