mirror of
https://github.com/GNS3/gns3-gui.git
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79 lines
2.4 KiB
Python
79 lines
2.4 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2014 GNS3 Technologies Inc.
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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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"""
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Graphical representation of an image on the QGraphicsScene.
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"""
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from ..qt import QtSvg
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from ..qt.qimage_svg_renderer import QImageSvgRenderer
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from .drawing_item import DrawingItem
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class ImageItem(QtSvg.QGraphicsSvgItem, DrawingItem):
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"""
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Class to insert an image on the scene.
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"""
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def __init__(self, image_path=None, pos=None, svg=None, **kws):
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self._image_path = image_path
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# Because we call the Qt C++ code we need to handle the case of pos is None otherwise we will get a conversion error
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if pos:
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super().__init__(pos=pos, **kws)
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else:
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super().__init__(**kws)
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if self._image_path:
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renderer = QImageSvgRenderer(image_path)
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self.setSharedRenderer(renderer)
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# By default center the image
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if pos is None:
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x = self.pos().x() - (self.boundingRect().width() / 2)
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y = self.pos().y() - (self.boundingRect().height() / 2)
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self.setPos(x, y)
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if svg:
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svg = self.fromSvg(svg)
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if 'z' in kws.keys():
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self.setZValue(kws['z'])
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def paint(self, painter, option, widget=None):
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"""
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Paints the contents of an item in local coordinates.
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:param painter: QPainter instance
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:param option: QStyleOptionGraphicsItem instance
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:param widget: QWidget instance
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"""
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super().paint(painter, option, widget)
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self.drawLayerInfo(painter)
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def fromSvg(self, svg):
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renderer = QImageSvgRenderer(svg)
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self.setSharedRenderer(renderer)
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def toSvg(self):
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"""
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Return an SVG version of the shape
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"""
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return self.renderer().svg()
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