QtMouseWheelSink.cxx
Go to the documentation of this file.00001 /* ======================================================================== 00002 * Copyright (c) 2006, 00003 * Institute for Computer Graphics and Vision 00004 * Graz University of Technology 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions are 00009 * met: 00010 * 00011 * Redistributions of source code must retain the above copyright notice, 00012 * this list of conditions and the following disclaimer. 00013 * 00014 * Redistributions in binary form must reproduce the above copyright 00015 * notice, this list of conditions and the following disclaimer in the 00016 * documentation and/or other materials provided with the distribution. 00017 * 00018 * Neither the name of the Graz University of Technology nor the names of 00019 * its contributors may be used to endorse or promote products derived from 00020 * this software without specific prior written permission. 00021 * 00022 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 00023 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 00024 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00025 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 00026 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00027 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00028 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00029 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00030 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00031 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00032 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00033 * ======================================================================== 00034 * PROJECT: OpenTracker 00035 * ======================================================================== */ 00045 #include <dllinclude.h> 00046 #if USE_OTQT 00047 00048 #include "QtMouseWheelSink.h" 00049 #include "OTQtLog.h" 00050 00051 namespace ot { 00052 00053 //-------------------------------------------------------------------------------- 00054 void QtMouseWheelSink::onEventGenerated(Event & event, Node & generator) 00055 { 00056 OTQT_DEBUG("QtMouseWheelSink::onEventGenerated(): event.getButton() = %hx\n", event.getButton()); 00057 00058 if (event.getButton() != curr_event_.getButton()) { 00059 // acquire tracking event 00060 acquireEvent(event); 00061 } 00062 00063 // pass original event to parent nodes 00064 forwardEvent(event); 00065 } 00066 00067 //-------------------------------------------------------------------------------- 00068 bool QtMouseWheelSink::wheelForwardMove() const 00069 { 00070 return (((prev_event_.getButton() >> 0) & 0x0001) == 0 && 00071 ((curr_event_.getButton() >> 0) & 0x0001) == 1); 00072 00073 } 00074 00075 //-------------------------------------------------------------------------------- 00076 bool QtMouseWheelSink::wheelBackwardMove() const 00077 { 00078 return (((prev_event_.getButton() >> 1) & 0x0001) == 0 && 00079 ((curr_event_.getButton() >> 1) & 0x0001) == 1); 00080 } 00081 00082 00083 } // namespace ot 00084 00085 #endif // USE_OTQT 00086 00087 /* 00088 * ------------------------------------------------------------ 00089 * End of QtMouseWheelSink.cxx 00090 * ------------------------------------------------------------ 00091 * Automatic Emacs configuration follows. 00092 * Local Variables: 00093 * mode:c++ 00094 * c-basic-offset: 4 00095 * eval: (c-set-offset 'substatement-open 0) 00096 * eval: (c-set-offset 'case-label '+) 00097 * eval: (c-set-offset 'statement 'c-lineup-runin-statements) 00098 * eval: (setq indent-tabs-mode nil) 00099 * End: 00100 * ------------------------------------------------------------ 00101 */