vcglib: trackball.h Source File

00001 /****************************************************************************
00002 * VCGLib                                                            o o     *
00003 * Visual and Computer Graphics Library                            o     o   *
00004 *                                                                _   O  _   *
00005 * Copyright(C) 2007                                                \/)\/    *
00006 * Visual Computing Lab                                            /\/|      *
00007 * ISTI - Italian National Research Council                           |      *
00008 *                                                                    \      *
00009 * All rights reserved.                                                      *
00010 *                                                                           *
00011 * This program is free software; you can redistribute it and/or modify      *
00012 * it under the terms of the GNU General Public License as published by      *
00013 * the Free Software Foundation; either version 2 of the License, or         *
00014 * (at your option) any later version.                                       *
00015 *                                                                           *
00016 * This program is distributed in the hope that it will be useful,           *
00017 * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
00018 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             *
00019 * GNU General Public License (http://www.gnu.org/licenses/gpl.txt)          *
00020 * for more details.                                                         *
00021 *                                                                           *
00022 ****************************************************************************/
00023 /****************************************************************************
00024   History
00025 
00026 $Log: trackball.h,v $
00027 
00028 ****************************************************************************/
00029 
00030 #ifndef QT_TRACKBALL_H
00031 #define QT_TRACKBALL_H
00032 
00034 static vcg::Trackball::Button QT2VCG (Qt::MouseButton qtbt, Qt::KeyboardModifiers modifiers)
00035 {
00036   int vcgbt = vcg::Trackball::BUTTON_NONE;
00037 
00038   if (qtbt & Qt::LeftButton)    vcgbt |= vcg::Trackball::BUTTON_LEFT;
00039   if (qtbt & Qt::RightButton)   vcgbt |= vcg::Trackball::BUTTON_RIGHT;
00040   if (qtbt & Qt::MidButton)             vcgbt |= vcg::Trackball::BUTTON_MIDDLE;
00041 
00042   if (modifiers & Qt::ShiftModifier)            vcgbt |= vcg::Trackball::KEY_SHIFT;
00043   if (modifiers & Qt::ControlModifier)  vcgbt |= vcg::Trackball::KEY_CTRL;
00044   if (modifiers & Qt::AltModifier)                      vcgbt |= vcg::Trackball::KEY_ALT;
00045 
00046   return vcg::Trackball::Button (vcgbt);
00047 }
00048 
00050 inline vcg::Trackball::Button QTWheel2VCG (Qt::KeyboardModifiers modifiers)
00051 {
00052   int vcgbt = vcg::Trackball::WHEEL;
00053 
00054   if (modifiers & Qt::ShiftModifier)            vcgbt |= vcg::Trackball::KEY_SHIFT;
00055   if (modifiers & Qt::ControlModifier)  vcgbt |= vcg::Trackball::KEY_CTRL;
00056   if (modifiers & Qt::AltModifier)                      vcgbt |= vcg::Trackball::KEY_ALT;
00057 
00058   return vcg::Trackball::Button (vcgbt);
00059 }
00060 
00062 inline vcg::Trackball::Button QTKey2VCG (int key, Qt::KeyboardModifiers modifiers)
00063 {
00064   int vcgbt = 0;
00065         switch (key) {
00066                 case Qt::Key_W    :
00067                 case Qt::Key_Up   : vcgbt = vcg::Trackball::KEY_UP   ; break;
00068                 case Qt::Key_A    :
00069                 case Qt::Key_Left : vcgbt = vcg::Trackball::KEY_LEFT ; break;
00070                 case Qt::Key_S    :
00071                 case Qt::Key_Down : vcgbt = vcg::Trackball::KEY_DOWN ; break;
00072                 case Qt::Key_D    :
00073                 case Qt::Key_Right: vcgbt = vcg::Trackball::KEY_RIGHT; break;
00074                 case Qt::Key_R    :
00075                 case Qt::Key_PageUp: vcgbt = vcg::Trackball::KEY_PGUP ; break;
00076                 case Qt::Key_F    :
00077                 case Qt::Key_PageDown: vcgbt = vcg::Trackball::KEY_PGDOWN; break;
00078                 default           : vcgbt = 0;
00079         }
00080 
00081   if (modifiers & Qt::ShiftModifier)            vcgbt |= vcg::Trackball::KEY_SHIFT;
00082   if (modifiers & Qt::ControlModifier)  vcgbt |= vcg::Trackball::KEY_CTRL;
00083   if (modifiers & Qt::AltModifier)                      vcgbt |= vcg::Trackball::KEY_ALT;
00084 
00085   return vcg::Trackball::Button (vcgbt);
00086 }
00087 
00088 #endif // QT_TRACKBALL_H