/*===========================================================================*\ * * * OpenFlipper * * Copyright (c) 2001-2015, RWTH-Aachen University * * Department of Computer Graphics and Multimedia * * All rights reserved. * * www.openflipper.org * * * *---------------------------------------------------------------------------* * This file is part of OpenFlipper. * *---------------------------------------------------------------------------* * * * Redistribution and use in source and binary forms, with or without * * modification, are permitted provided that the following conditions * * are met: * * * * 1. Redistributions of source code must retain the above copyright notice, * * this list of conditions and the following disclaimer. * * * * 2. Redistributions in binary form must reproduce the above copyright * * notice, this list of conditions and the following disclaimer in the * * documentation and/or other materials provided with the distribution. * * * * 3. Neither the name of the copyright holder nor the names of its * * contributors may be used to endorse or promote products derived from * * this software without specific prior written permission. * * * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER * * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * \*===========================================================================*/ #include #include "SelectionObjectMarker.hh" //****************************************************************************** const ACG::Vec4f disabled_color (0.4f,0.4f,0.4f,1.f); const ACG::Vec4f selected_color (0.f,1.f,0.f,0.5f); //****************************************************************************** bool SelectionObjectMarker::stencilRefForObject(BaseObjectData * _obj, GLuint & _reference) { if (_obj->flag("vsi_objectId_disabled")) { _reference = 1; return true; } else if (_obj->flag("vsi_objectId_selected")) { _reference = 2; return true; } return false; } bool SelectionObjectMarker::blendForStencilRefNumber(GLuint _reference, GLenum & _src, GLenum & _dst, ACG::Vec4f & _color) { switch (_reference) { case 1: _src = GL_ZERO; _dst = GL_SRC_COLOR; _color = disabled_color; return true; case 2: _src = GL_SRC_ALPHA; _dst = GL_ONE_MINUS_SRC_ALPHA; _color = selected_color; return true; default: return false; } return false; }