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Diffstat (limited to 'src/python/coordcalibrator.py')
| -rw-r--r-- | src/python/coordcalibrator.py | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/python/coordcalibrator.py b/src/python/coordcalibrator.py new file mode 100644 index 0000000..c3dad01 --- /dev/null +++ b/src/python/coordcalibrator.py @@ -0,0 +1,133 @@ +# 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, player + +import apphelpers + +g_KbManager = apphelpers.KeyboardManager.get() + + +class CoordCalibrator(object): + def __init__(self, calibrationTerminatedCb): + self.__calibrationTerminatedCb = calibrationTerminatedCb + self.__CurPointIndex = 0 + self.__CPPCal = player.getTracker().startCalibration() + self.__LastCenter = None + self.__NumMessages = 0 + self._mycursor = None + mainNode = player.getElementByID("cal_coordcalibrator") + mainNode.active = True + mainNode.opacity = 1 + mainNode.setEventHandler(avg.Event.CURSOR_DOWN, avg.Event.TOUCH, + self.__onTouchDown) + mainNode.setEventHandler(avg.Event.CURSOR_MOTION, avg.Event.TOUCH, + self.__onTouchMove) + mainNode.setEventHandler(avg.Event.CURSOR_UP, avg.Event.TOUCH, self.__onTouchUp) + self.__crosshair = player.getElementByID("cal_crosshair") + self.__feedback = player.getElementByID("cal_feedback") + self.__feedback.opacity = 0 + self.__addMessage("Starting calibration.") + self.__moveMarker() + + g_KbManager.push() + g_KbManager.bindKey('space', self.__nextPoint, 'sample next point') + g_KbManager.bindKey('a', self.__abortCalibration, 'abort calibration') + + def __endCalibration(self, isSuccessful): + player.getElementByID("cal_coordcalibrator").active = False + player.getElementByID("cal_coordcalibrator").opacity = 0 + MsgsNode = player.getElementByID("cal_messages") + for i in range(0, MsgsNode.getNumChildren()): + MsgsNode.removeChild(0) + + g_KbManager.pop() + self.__calibrationTerminatedCb(isSuccessful) + + def __nextPoint(self): + if self.__LastCenter: + self.__CPPCal.setCamPoint(self.__LastCenter) + self.__addMessage (" Using: %(x).2f, %(y).2f" % + { "x": self.__LastCenter[0], "y": self.__LastCenter[1]}) + self._mycursor = None + self.__LastCenter = None + + hasNextPoint = self.__CPPCal.nextPoint() + + if not hasNextPoint: + # Note: may raise RuntimeError. A rollback doesn't appear to be possible, + # which means crashing here is safer than handling the exception + player.getTracker().endCalibration() + self.__endCalibration(True) + else: + self.__CurPointIndex += 1 + self.__moveMarker() + + def __abortCalibration(self): + player.getTracker().abortCalibration() + self.__endCalibration(False) + + def __moveMarker(self): + self.__crosshair.x, self.__crosshair.y = self.__CPPCal.getDisplayPoint() + self.__crosshair.x, self.__crosshair.y = self.__feedback.x, self.__feedback.y = \ + (self.__crosshair.x-7, self.__crosshair.y-7) + self.__addMessage("Calibrating point "+str(self.__CurPointIndex)) + + def __addMessage(self, text): + MsgsNode = player.getElementByID("cal_messages") + if self.__NumMessages > 38: + for i in range(0, MsgsNode.getNumChildren()-1): + MsgsNode.getChild(i).text = MsgsNode.getChild(i+1).text + MsgsNode.removeChild(MsgsNode.getNumChildren()-1) + else: + self.__NumMessages += 1 + Node = player.createNode( + "<words fontsize='10' font='Eurostile' color='00FF00'/>") + Node.x = 0 + Node.y = self.__NumMessages*13 + Node.text = text + MsgsNode.appendChild(Node) + + def __onTouchDown(self, Event): + if Event.source != avg.Event.TOUCH: + return + if not self._mycursor: + self._mycursor = Event.cursorid + else: + return + self.__LastCenter = Event.center + self.__addMessage(" Touch at %(x).2f, %(y).2f" % { + "x": Event.center[0], "y": Event.center[1]}) + self.__feedback.opacity = 1 + + def __onTouchMove(self,Event): + if Event.source != avg.Event.TOUCH: + return + if self._mycursor == Event.cursorid: + self.__LastCenter = Event.center + + def __onTouchUp(self, Event): + if Event.source != avg.Event.TOUCH: + return + self.__addMessage("touchup") + self.__feedback.opacity = 0 + if self._mycursor: + self._mycursor = None + else: + return |