1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
#ifndef TILE_COLOUR_H
#define TILE_COLOUR_H
enum COLORS
{
BLACK,
BLUE,
GREEN,
CYAN,
RED,
MAGENTA,
BROWN,
LIGHTGRAY,
LIGHTGREY = LIGHTGRAY,
DARKGRAY,
DARKGREY = DARKGRAY,
LIGHTBLUE,
LIGHTGREEN,
LIGHTCYAN,
LIGHTRED,
LIGHTMAGENTA,
YELLOW,
WHITE,
MAX_TERM_COLOUR,
MAX_COLOUR = MAX_TERM_COLOUR
};
class tile_colour
{
public:
tile_colour() {};
tile_colour(unsigned char _r, unsigned char _g, unsigned char _b,
unsigned char _a) : r(_r), g(_g), b(_b), a(_a) {}
bool operator==(const tile_colour &rhs) const;
bool operator!=(const tile_colour &rhs) const;
const tile_colour &operator=(const tile_colour &rhs);
unsigned char &operator[](int idx);
unsigned char operator[](int idx) const;
// Get the HSV/HSL hue, from 0..360.
int get_hue() const;
// Set the hue, from 0..360.
void set_hue(int h);
// Change the saturation to 0.
void desaturate();
// Change the luminance by lum_percent %.
void change_lum(int lum_percent);
int get_max_rgb() const;
int get_min_rgb() const;
// Set the color from HSV. hue is 0..360. min_rgb and max_rgb are 0..255.
void set_from_hue(int hue, int min_rgb, int max_rgb);
// Set the color from HSL. hue is 0..360. sat and lum are 0..1.
void set_from_hsl(int hue, float sat, float lum);
// Get the HSL saturation, from 0..1.
float get_sat() const;
// Get the HSL luminance, from 0..1.
float get_lum() const;
unsigned char r;
unsigned char g;
unsigned char b;
unsigned char a;
static tile_colour background;
static tile_colour transparent;
static tile_colour black;
};
bool write_png(const char *filename, tile_colour *pixels,
unsigned int width, unsigned int height);
#endif
|
