zext/editor.h at main · zeb33n/zext · GitHub

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
77
78
79
80
81
82
83
#ifndef EDITOR_H
#define EDITOR_H

// IMPORTS
void js_fill_rect(int x, int y, int w, int h, unsigned int colour);
void js_write_char(int x, int y, unsigned char c, unsigned int color, int size);
void js_unwrite_char(int x, int y, unsigned int color, int size);
void js_log(int msg);
void js_log_str(char* msg);
void js_dump_line(char* msg);

// EXPORTS
void editor_keypress(char c);
void editor_special_keypress(char c);
void editor_init(int w, int h, int font_size);
void editor_dump_text();
void editor_set_colours(int bgrd, int txt, int bgrd_margin, int txt_margin);

// DEFINITIONS
#define NULL (void*)0
#define LEN_MAX 80 * 100
#define FONT_HW_R 1.7
#define BGRD_COL 0xFF3c3836
#define TEXT_COL 0xFF548588
#define TEXT_COL_MARGIN 0xFF8ec07c
#define BGRD_COL_MARGIN 0xFFcc3836

// INTERNAL DECLARATIONS
enum KeysSpecial {
  TAB = 9,
  ENTER = 13,
  LEFT = 37,
  UP = 38,
  RIGHT = 39,
  DOWN = 40,
  BSPACE = 8,
  DELETE = 46,
};

typedef struct Colours {
  int bgrd;
  int txt;
  int bgrd_margin;
  int txt_margin;
} Colours;

typedef struct Screen {
  int width_cs;
  int height_cs;
  int font_px;
  int cursor;
  int cursor_x_os;
  int cursor_y_os;
  int margin_w_cs;
  char* text;
  Colours colours;
} Screen;

typedef struct Coord {
  int x;
  int y;
} Coord;

// line
int line_get_end(int cur_pos);
int line_get_end_str(int cur_pos);
void line_clear_from(int cur_pos);
void line_render_from(int cur_pos);
void line_empty_from(int cur_pos);
void line_copy(int from_pos, int to_pos);

// cursor
Coord cursor_get_coord_px(int pos);
void cursor_clear();
void cursor_mov_lr(int d);
void cursor_render();
void cursor_mov_ud(int d);

// hack for global -> should probably make its own file with getters and
// setters.
static Screen SCREEN;

#endif