1 files changed, 188 insertions, 0 deletions
diff --git a/src/python/app/touchvisualization.py b/src/python/app/touchvisualization.py
new file mode 100644
index 0000000..7953b02
--- /dev/null
+++ b/src/python/app/touchvisualization.py
@@ -0,0 +1,188 @@
+# 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)