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# -*- coding: utf-8 -*-
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# Copyright 2012 Canonical Ltd.
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 3, as published
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# by the Free Software Foundation.
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranties of
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# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
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# PURPOSE. See the GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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"""Widget written in Qt that works as a GtkArrow."""
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from PyQt4.QtGui import QPainter, QStyle, QStyleOption, QWidget
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class QArrow(QWidget):
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def __init__(self, direction, parent=None):
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"""Create a new instance."""
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super(QArrow, self).__init__(parent)
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self._set_direction(direction)
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self.setFixedWidth(16)
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# pylint: disable=C0103
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def paintEvent(self, event):
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"""Paint the widget."""
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painter = QPainter(self)
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if self._direction == QArrow.UP:
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primitive = QStyle.PE_IndicatorArrowUp
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elif self._direction == QArrow.DOWN:
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primitive = QStyle.PE_IndicatorArrowDown
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elif self._direction == QArrow.LEFT:
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primitive = QStyle.PE_IndicatorArrowLeft
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primitive = QStyle.PE_IndicatorArrowRight
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painter.translate(-5, 0)
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painter.setViewTransformEnabled(True)
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self.style().drawPrimitive(primitive, opt, painter, self)
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# pylint: enable=C0103
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def _get_direction(self):
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"""Return the direction used."""
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return self._direction
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# pylint: disable=W0201
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def _set_direction(self, direction):
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"""Set the direction."""
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if direction not in (QArrow.UP, QArrow.DOWN,
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QArrow.LEFT, QArrow.RIGHT):
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raise ValueError('Wrong arrow direction.')
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self._direction = direction
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# pylint: enable=W0201
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direction = property(_get_direction, _set_direction)
added
removed
ubuntu_sso/qt/arrow.py
