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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
#
import os
from libavg import avg, player
class BaseTouchVisualization(avg.DivNode):
def __init__(self, event, parent=None, **kwargs):
avg.DivNode.__init__(self, **kwargs)
self.registerInstance(self, parent)
event.contact.subscribe(avg.Contact.CURSOR_MOTION, self._onMotion)
event.contact.subscribe(avg.Contact.CURSOR_UP, self._onUp)
self.pos = avg.Point2D(event.pos)
self._fingerSize = 7*player.getPixelsPerMM() # Assume 14mm width for a finger.
self._radius = self._getRadius(event)
def _abort(self):
self.unlink(True)
del self
def _onMotion(self, event):
self.pos = event.pos
self._radius = self._getRadius(event)
def _onUp(self, event):
self.unlink(True)
del self
def _getRadius(self, event):
if event.source in [avg.Event.MOUSE]:
return self._fingerSize
else:
return max(self._fingerSize, event.majoraxis.getNorm())
class DebugTouchVisualization(BaseTouchVisualization):
def __init__(self, event, **kwargs):
BaseTouchVisualization.__init__(self, event, **kwargs)
self.positions = [event.pos]
if event.source == avg.Event.TOUCH:
color = 'e5d8d8'
else:
color = 'd8e5e5'
self.opacity = 0.5
self.__transparentCircle = avg.CircleNode(r=self._radius+20, fillcolor=color,
fillopacity=0.2, opacity=0.0, strokewidth=1, sensitive=False, parent=self)
self.__pulsecircle = avg.CircleNode(r=self._radius, fillcolor=color, color=color,
fillopacity=0.5, opacity=0.5, strokewidth=1,
sensitive=False, parent=self)
if event.source in [avg.Event.TOUCH, avg.Event.TRACK]:
self.__majorAxis = avg.LineNode(pos1=(0,0), pos2=event.majoraxis,
color='FFFFFF', sensitive=False, parent=self)
self.__minorAxis = avg.LineNode(pos1=(0,0), pos2=event.minoraxis,
color='FFFFFF', sensitive=False, parent=self)
if event.source == avg.Event.TOUCH:
self.__handAxis = avg.LineNode(pos1=(0,0), pos2=self.__getHandVector(event),
opacity=0.5, color='A0FFA0', sensitive=False, parent=self)
fontPos = avg.Point2D(self.__pulsecircle.r, 0)
if event.cursorid == -1:
text = 'MOUSE'
else:
text = '%s %d' % (event.source, event.cursorid)
avg.WordsNode(pos=fontPos, text=text, fontsize=9, parent=self)
self.motionPath = avg.PolyLineNode(pos=self.positions,
opacity=0.7, color=color, parent=kwargs['parent'])
self.motionVector = avg.LineNode(pos1=(0,0) , pos2=-event.contact.motionvec,
opacity=0.4, parent=self)
pulseCircleAnim = avg.LinearAnim(self.__pulsecircle, 'r', 200, 50, self._radius)
pulseCircleAnim.start()
def unlink(self, kill=True):
if self.motionPath:
self.motionPath.unlink(True)
super(DebugTouchVisualization, self).unlink(kill)
def _onMotion(self, event):
BaseTouchVisualization._onMotion(self, event)
self.positions.append(event.pos)
if len(self.positions) > 100:
self.positions.pop(0)
self.__pulsecircle.r = self._radius
self.setAxisSecondPos(event)
self.motionVector.pos2 = -event.contact.motionvec
if event.source == avg.Event.TOUCH:
self.__handAxis.pos2 = self.__getHandVector(event)
self.motionPath.pos = self.positions
def __getHandVector(self, event):
return -avg.Point2D.fromPolar(event.handorientation, 30)
def setAxisSecondPos(self, event):
if event.source not in [avg.Event.MOUSE]:
self.__majorAxis.pos2 = event.majoraxis
self.__minorAxis.pos2 = event.minoraxis
class TouchVisualization(BaseTouchVisualization):
mediadir = os.path.join(os.path.dirname(__file__), os.path.pardir, 'data')
sources = [avg.Event.TOUCH]
bmp = avg.Bitmap(mediadir+"/TouchFeedback.png")
def __init__(self, event, **kwargs):
BaseTouchVisualization.__init__(self, event, **kwargs)
if event.source in self.sources:
self.__circle = avg.ImageNode(parent=self)
self.__circle.setBitmap(self.bmp)
self.__setRadius(self._radius)
avg.LinearAnim(self.__circle, "opacity", 200, 0.7, 0.4).start()
else:
self.unlink(True)
self._abort()
def _onMotion(self, event):
BaseTouchVisualization._onMotion(self, event)
self.__setRadius(self._radius)
def _onUp(self, event):
def gone(self):
BaseTouchVisualization._onUp(self, event)
self.unlink(True)
del self
avg.fadeIn(self.__circle, 100, 1)
avg.LinearAnim(self.__circle, "size", 100, self.__circle.size, (4,4)).start()
avg.LinearAnim(self.__circle, "pos", 100, self.__circle.pos, (-2,-2)).start()
player.setTimeout(100, lambda: gone(self))
def __setRadius(self, radius):
self.__circle.pos = (-radius, -radius)
self.__circle.size = (radius*2,radius*2)
class TouchVisualizationOverlay(avg.DivNode):
def __init__(self, isDebug, visClass, rootNode=None, parent=None,
**kwargs):
super(TouchVisualizationOverlay, self).__init__(**kwargs)
self.registerInstance(self, parent)
self.sensitive = False
self.visClass = visClass
if rootNode is None:
rootNode = player.getRootNode()
if isDebug:
self.elementoutlinecolor='FFFFAA'
avg.RectNode(parent=self, size=self.size, fillopacity=0.2, fillcolor='000000')
rootNode.subscribe(avg.Node.CURSOR_DOWN, self.__onTouchDown)
rootNode.subscribe(avg.Node.HOVER_DOWN, self.__onTouchDown)
def unlink(self, kill=True):
rootNode = player.getRootNode()
if rootNode:
rootNode.unsubscribe(avg.Node.CURSOR_DOWN, self.__onTouchDown)
rootNode.unsubscribe(avg.Node.HOVER_DOWN, self.__onTouchDown)
super(TouchVisualizationOverlay, self).unlink(kill)
def __onTouchDown(self, event):
self.visClass(event, parent=self)
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