Developer Documentation

DefaultObjectMarker.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 #include <OpenFlipper/common/Types.hh>
45 #include "DefaultObjectMarker.hh"
46
47 //******************************************************************************
48
49 const ACG::Vec4f base_color (0.6f,0.6f,0.6f,1.0f);
50 const ACG::Vec4f source_color (0.6f,0.6f,1.0f,1.0f);
51 const ACG::Vec4f target_color (1.0f,1.0f,1.0f,1.0f);
52 const ACG::Vec4f source_target_color (0.6f,1.0f,1.0f,1.0f);
53
54 //******************************************************************************
55
56 bool DefaultObjectMarker::stencilRefForObject(BaseObjectData * _obj, GLuint & _reference)
57 {
58 if (!_obj->target() && !_obj->source())
59 {
60 _reference = 1;
61 return true;
62 }
63 else if (!_obj->target() && _obj->source())
64 {
65 _reference = 2;
66 return true;
67 }
68 else if (_obj->target() && !_obj->source())
69 {
70 _reference = 3;
71 return true;
72 }
73 else if (_obj->target() && _obj->source())
74 {
75 _reference = 4;
76 return true;
77 }
78
79 return false;
80 }
81
82 bool DefaultObjectMarker::blendForStencilRefNumber(GLuint _reference, GLenum & _src, GLenum & _dst, ACG::Vec4f & _color)
83 {
84 _src = GL_ZERO;
85 _dst = GL_SRC_COLOR;
86
87 switch (_reference)
88 {
89 case 1:
90 _color = base_color;
91 return true;
92 case 2:
93 _color = source_color;
94 return true;
95 case 3:
96 _color = target_color;
97 return true;
98 case 4:
99 _color = source_target_color;
100 return true;
101 default:
102 return false;
103 }
104 return false;
105 }
106
BaseObject::source
bool source()
Definition: BaseObject.cc:291
OpenMesh::VectorT
Definition: Vector11T.hh:83
BaseObject::target
bool target()
Definition: BaseObject.cc:273
DefaultObjectMarker::blendForStencilRefNumber
bool blendForStencilRefNumber(GLuint _reference, GLenum &_src, GLenum &_dst, ACG::Vec4f &_color)
Definition: DefaultObjectMarker.cc:82
BaseObjectData
Definition: BaseObjectData.hh:102
Types.hh
DefaultObjectMarker::stencilRefForObject
bool stencilRefForObject(BaseObjectData *_obj, GLuint &_reference)
Definition: DefaultObjectMarker.cc:56