source: trunk/packages/vizservers/nanovis/Color.cpp @ 2798

Last change on this file since 2798 was 2798, checked in by ldelgass, 8 years ago

Add emacs mode magic line in preparation for indentation cleanup

  • Property svn:eol-style set to native
File size: 2.3 KB
Line 
1/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2/*
3 * ----------------------------------------------------------------------
4 * Color.cpp: Color class
5 *
6 * ======================================================================
7 *  AUTHOR:  Wei Qiao <qiaow@purdue.edu>
8 *           Purdue Rendering and Perceptualization Lab (PURPL)
9 *
10 *  Copyright (c) 2004-2006  Purdue Research Foundation
11 *
12 *  See the file "license.terms" for information on usage and
13 *  redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
14 * ======================================================================
15 */
16
17#include <stdio.h>
18#include <assert.h>
19
20#include "Color.h"
21#include "define.h"
22
23Color::Color() {
24        R=G=B=0.0;
25        next=0;
26}
27
28Color::Color(double r, double g, double b) {
29        R=r;
30        G=g;
31        B=b;
32        next=0;
33}
34
35Color::Color(const Color& c)
36 : R(c.R), G(c.G), B(c.B), next(c.next)
37{
38}
39
40Color&
41Color::operator=(const Color& c)
42{
43    R = c.R;
44    G = c.G;
45    B = c.B;
46    next = c.next;
47    return *this;
48}
49
50void Color::LimitColors(){ //Limits the color to be in range of 0.0 and 1.0
51        if (R>1.0) R=1.0;
52        if (G>1.0) G=1.0;
53        if (B>1.0) B=1.0;
54
55        if (R<0.0) R=0.0;
56        if (G<0.0) G=0.0;
57        if (B<0.0) B=0.0;
58}
59
60Color Color::operator*(double k){
61        return Color(R*k, G*k, B*k);
62}
63
64
65//This is NOT member operator. It's used so we can write (k*V), not only (V*k) (V-vector k-scalar)
66Color operator*(double k, Color &other){
67        return Color(other.R*k, other.G*k, other.B*k);
68}
69
70Color::~Color(){}
71
72Color Color::operator +(Color &other){
73        return Color(this->R+other.R,this->G+other.G,this->B+other.B);
74}
75
76Color Color::operator *(Color &other){
77        return Color(this->R*other.R,this->G*other.G,this->B*other.B);
78}
79
80void Color::GetRGBA(double opacity, unsigned char *result){
81        LimitColors();
82
83        assert(opacity>=0 && opacity <=1);
84
85        result[0] = (unsigned char) (R*255.0);
86        result[1] = (unsigned char) (G*255.0);
87        result[2] = (unsigned char) (B*255.0);
88        result[3] = (unsigned char) (opacity*255.0);
89}
90
91void Color::SetRGBA(unsigned char *color){
92        R = color[0];
93        G = color[1];
94        B = color[2];
95}
96
97void Color::GetRGB(unsigned char *result){
98        result[0] = (unsigned char) (R*255.0);
99        result[1] = (unsigned char) (G*255.0);
100        result[2] = (unsigned char) (B*255.0);
101}
102
103void Color::GetRGB(float *result){
104        result[0] = (float) (R);
105        result[1] = (float) (G);
106        result[2] = (float) (B);
107}
108
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