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# libavg - Media Playback Engine.
# Copyright (C) 2003-2014 Ulrich von Zadow
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Current versions can be found at www.libavg.de
#
from libavg import avg
class RoundedRect(avg.PolygonNode):
def __init__(self, size, radius, pos=(0,0), parent=None, **kwargs):
super(RoundedRect, self).__init__(**kwargs)
self.__pos = avg.Point2D(pos)
self.__size = avg.Point2D(size)
self.__radius = radius
self.__calcPolygon()
self.registerInstance(self, parent)
def getPos(self):
return self.__pos
def setPos(self, pos):
self.__pos = avg.Point2D(pos)
self.__calcPolygon()
polyPos = avg.PolygonNode.pos
pos = property(getPos, setPos)
def getSize(self):
return self.__size
def setSize(self, size):
self.__size = avg.Point2D(size)
self.__calcPolygon()
size = property(getSize, setSize)
def getRadius(self):
return self.__radius
def setRadius(self, radius):
self.__radius = radius
self.__calcPolygon()
radius = property(getRadius, setRadius)
def __calcPolygon(self):
def calcQuarterCircle(center, r, startAngle):
pos = []
for i in xrange(int(r)+1):
angle = i*(1.57/r)+startAngle
p = avg.Point2D(center)+avg.Point2D.fromPolar(angle, r)
pos.append(p)
return pos
r = self.__radius
if self.__size.x < r*2:
r = self.__size.x/2
if self.__size.y < r*2:
r = self.__size.y/2
if r == 0:
r = 0.01
pos = []
size = self.__size
pos.extend(calcQuarterCircle(self.pos+(size.x-r,r), r, -1.57))
pos.extend(calcQuarterCircle(self.pos+(size.x-r,size.y-r), r, 0))
pos.extend(calcQuarterCircle(self.pos+(r,size.y-r), r, 1.57))
pos.extend(calcQuarterCircle(self.pos+(r,r), r, 3.14))
self.polyPos = pos
class PieSlice(avg.PolygonNode):
def __init__(self, radius, startangle, endangle, pos=(0,0), parent=None,
**kwargs):
super(PieSlice, self).__init__(**kwargs)
self.__pos = avg.Point2D(pos)
self.__radius = radius
self.__startangle = startangle
self.__endangle = endangle
self.__calcPolygon()
self.registerInstance(self, parent)
def getPos(self):
return self.__pos
def setPos(self, pos):
self.__pos = avg.Point2D(pos)
self.__calcPolygon()
polyPos = avg.PolygonNode.pos
pos = property(getPos, setPos)
def getRadius(self):
return self.__radius
def setRadius(self, radius):
self.__radius = radius
self.__calcPolygon()
radius = property(getRadius, setRadius)
def getStartAngle(self):
return self.__startangle
def setStartAngle(self, startangle):
self.__startangle = startangle
self.__calcPolygon()
startangle = property(getStartAngle, setStartAngle)
def getEndAngle(self):
return self.__endangle
def setEndAngle(self, endangle):
self.__endangle = endangle
self.__calcPolygon()
endangle = property(getEndAngle, setEndAngle)
def __calcPolygon(self):
def getCirclePoint(i):
angle = self.__startangle + (self.__endangle-self.__startangle)*i
return avg.Point2D(self.__pos)+avg.Point2D.fromPolar(angle, self.__radius)
pos = []
circlePart = (self.__endangle - self.__startangle)/6.28
numPoints = self.__radius*2.*circlePart
if numPoints < 4:
numPoints = 4
for i in xrange(0, int(numPoints)):
pos.append(getCirclePoint(i/numPoints))
pos.append(getCirclePoint(1))
pos.append(self.__pos)
self.polyPos = pos
class Arc(avg.PolyLineNode):
# TODO: Code duplication with PieSlice
def __init__(self, radius, startangle, endangle, pos=(0,0), parent=None,
**kwargs):
super(Arc, self).__init__(**kwargs)
self.__pos = avg.Point2D(pos)
self.__radius = radius
self.__startangle = startangle
self.__endangle = endangle
self.__calcPolygon()
self.registerInstance(self, parent)
def getPos(self):
return self.__pos
def setPos(self, pos):
self.__pos = avg.Point2D(pos)
self.__calcPolygon()
polyPos = avg.PolyLineNode.pos
pos = property(getPos, setPos)
def getRadius(self):
return self.__radius
def setRadius(self, radius):
self.__radius = radius
self.__calcPolygon()
radius = property(getRadius, setRadius)
def getStartAngle(self):
return self.__startangle
def setStartAngle(self, startangle):
self.__startangle = startangle
self.__calcPolygon()
startangle = property(getStartAngle, setStartAngle)
def getEndAngle(self):
return self.__endangle
def setEndAngle(self, endangle):
self.__endangle = endangle
self.__calcPolygon()
endangle = property(getEndAngle, setEndAngle)
def __calcPolygon(self):
def getCirclePoint(i):
angle = self.__startangle + (self.__endangle-self.__startangle)*i
return avg.Point2D(self.__pos)+avg.Point2D.fromPolar(angle, self.__radius)
pos = []
circlePart = (self.__endangle - self.__startangle)/6.28
numPoints = self.__radius*2.*circlePart
for i in xrange(0, int(numPoints)):
pos.append(getCirclePoint(i/numPoints))
pos.append(getCirclePoint(1))
self.polyPos = pos
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