mirror of
https://github.com/GNS3/gns3-gui.git
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100 lines
3.1 KiB
Python
100 lines
3.1 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 a rectangle on the QGraphicsScene.
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"""
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import xml.etree.ElementTree as ET
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from ..qt import QtCore, QtGui, QtWidgets
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from .shape_item import ShapeItem
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class RectangleItem(QtWidgets.QGraphicsRectItem, ShapeItem):
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"""
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Class to draw a rectangle on the scene.
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"""
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def __init__(self, width=200, height=100, **kws):
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self._rx = 0
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self._ry = 0
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super().__init__(width=width, height=height, **kws)
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def setHorizontalCornerRadius(self, radius: int):
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self._rx = radius
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def horizontalCornerRadius(self):
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return self._rx
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def setVerticalCornerRadius(self, radius: int):
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self._ry = radius
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def verticalCornerRadius(self):
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return self._ry
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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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painter.setPen(self.pen())
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painter.setBrush(self.brush())
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painter.drawRoundedRect(self.rect(), self._rx, self._ry)
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self.drawLayerInfo(painter)
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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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svg = ET.Element("svg")
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svg.set("width", str(int(self.rect().width())))
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svg.set("height", str(int(self.rect().height())))
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rect = ET.SubElement(svg, "rect")
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rect.set("width", str(int(self.rect().width())))
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rect.set("height", str(int(self.rect().height())))
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if self._rx:
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rect.set("rx", str(self._rx))
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if self._ry:
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rect.set("ry", str(self._ry))
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rect = self._styleSvg(rect)
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return ET.tostring(svg, encoding="utf-8").decode("utf-8")
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def fromSvg(self, svg):
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svg_elem = ET.fromstring(svg)
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if len(svg_elem):
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# handle horizontal corner radius and vertical corner radius (specific to rectangles)
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rx = svg_elem[0].get("rx")
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ry = svg_elem[0].get("ry")
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if rx:
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self._rx = int(rx)
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elif ry:
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self._rx = int(ry) # defaults to ry if it is specified
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if ry:
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self._ry = int(ry)
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elif rx:
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self._ry = int(rx) # defaults to rx if it is specified
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super().fromSvg(svg)
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