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98 lines
3.4 KiB
98 lines
3.4 KiB
#!/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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