Developer Documentation
SelectionObjectMarker.cc
1 /*===========================================================================*\
2 * *
3 * OpenFlipper *
4  * Copyright (c) 2001-2015, RWTH-Aachen University *
5  * Department of Computer Graphics and Multimedia *
6  * All rights reserved. *
7  * www.openflipper.org *
8  * *
9  *---------------------------------------------------------------------------*
10  * This file is part of OpenFlipper. *
11  *---------------------------------------------------------------------------*
12  * *
13  * Redistribution and use in source and binary forms, with or without *
14  * modification, are permitted provided that the following conditions *
15  * are met: *
16  * *
17  * 1. Redistributions of source code must retain the above copyright notice, *
18  * this list of conditions and the following disclaimer. *
19  * *
20  * 2. Redistributions in binary form must reproduce the above copyright *
21  * notice, this list of conditions and the following disclaimer in the *
22  * documentation and/or other materials provided with the distribution. *
23  * *
24  * 3. Neither the name of the copyright holder nor the names of its *
25  * contributors may be used to endorse or promote products derived from *
26  * this software without specific prior written permission. *
27  * *
28  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
29  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
31  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
32  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
33  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
34  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
35  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
36  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
37  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
38  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
39 * *
40 \*===========================================================================*/
41 
42 /*===========================================================================*\
43 * *
44 * $Revision$ *
45 * $LastChangedBy$ *
46 * $Date$ *
47 * *
48 \*===========================================================================*/
49 
51 #include "SelectionObjectMarker.hh"
52 
53 //******************************************************************************
54 
55 const ACG::Vec4f disabled_color (0.4f,0.4f,0.4f,1.f);
56 const ACG::Vec4f selected_color (0.f,1.f,0.f,0.5f);
57 
58 //******************************************************************************
59 
61 {
62  if (_obj->flag("vsi_objectId_disabled"))
63  {
64  _reference = 1;
65  return true;
66  }
67  else if (_obj->flag("vsi_objectId_selected"))
68  {
69  _reference = 2;
70  return true;
71  }
72 
73  return false;
74 }
75 
76 bool SelectionObjectMarker::blendForStencilRefNumber(GLuint _reference, GLenum & _src, GLenum & _dst, ACG::Vec4f & _color)
77 {
78  switch (_reference)
79  {
80  case 1:
81  _src = GL_ZERO;
82  _dst = GL_SRC_COLOR;
83  _color = disabled_color;
84  return true;
85  case 2:
86  _src = GL_SRC_ALPHA;
87  _dst = GL_ONE_MINUS_SRC_ALPHA;
88  _color = selected_color;
89  return true;
90  default:
91  return false;
92  }
93  return false;
94 }
95 
bool stencilRefForObject(BaseObjectData *_obj, GLuint &_reference)
bool blendForStencilRefNumber(GLuint _reference, GLenum &_src, GLenum &_dst, ACG::Vec4f &_color)
bool flag(QString _flag)
Definition: BaseObject.cc:310