00001 /*************************************************************************** 00002 * Copyright (C) 2005-2007 Stefan Schwarzer, Jens Schneider, * 00003 * Matthias Hardt, Guido Madaus * 00004 * * 00005 * Copyright (C) 2007-2008 BerLinux Solutions GbR * 00006 * Stefan Schwarzer & Guido Madaus * 00007 * * 00008 * Copyright (C) 2009-2013 BerLinux Solutions GmbH * 00009 * * 00010 * Authors: * 00011 * Stefan Schwarzer <stefan.schwarzer@diskohq.org>, * 00012 * Matthias Hardt <matthias.hardt@diskohq.org>, * 00013 * Jens Schneider <jens.schneider@diskohq.org>, * 00014 * Guido Madaus <guido.madaus@diskohq.org>, * 00015 * Patrick Helterhoff <patrick.helterhoff@diskohq.org>, * 00016 * René Bählkow <rene.baehlkow@diskohq.org> * 00017 * * 00018 * This library is free software; you can redistribute it and/or * 00019 * modify it under the terms of the GNU Lesser General Public * 00020 * License version 2.1 as published by the Free Software Foundation. * 00021 * * 00022 * This library is distributed in the hope that it will be useful, * 00023 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00024 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00025 * Lesser General Public License for more details. * 00026 * * 00027 * You should have received a copy of the GNU Lesser General Public * 00028 * License along with this library; if not, write to the * 00029 * Free Software Foundation, Inc., * 00030 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * 00031 **************************************************************************/ 00032 00033 #include "mmsinput/mmsinputgesture.h" 00034 #include <stdlib.h> 00035 00036 MMSInputGesture::MMSInputGesture(int sensitivity) { 00037 dy=0; 00038 dx=0; 00039 this->threshold = sensitivity; 00040 } 00041 00042 MMSInputGesture::~MMSInputGesture() { 00043 00044 } 00045 00046 void MMSInputGesture::addInfo(MMSInputEvent *event) { 00047 dx+=event->dx; 00048 dy+=event->dy; 00049 } 00050 00051 void MMSInputGesture::reset() { 00052 dx=0; 00053 dy=0; 00054 } 00055 00056 MMSINPUTGESTURE MMSInputGesture::guess() { 00057 00058 if((dx < (-1 *this->threshold))&&(abs(dy)< abs(dx)/2)) 00059 return MMSINPUTGESTURE_LEFT; 00060 if((dx > this->threshold)&&(abs(dy)<abs(dx)/2)) 00061 return MMSINPUTGESTURE_RIGHT; 00062 if((dy < (-1 * this->threshold))&&(abs(dx)<abs(dy)/2)) 00063 return MMSINPUTGESTURE_UP; 00064 if((dy > this->threshold)&&(abs(dx)<abs(dy)/2)) 00065 return MMSINPUTGESTURE_DOWN; 00066 00067 00068 return MMSINPUTGESTURE_UKN; 00069 } 00070