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
84
85
|
#include <stdlib.h> // for malloc() and free()
#include <string.h> // for memcpy()
#include <assert.h>
#include <curses.h>
#include "fun_menu.h"
#include "richwin.h"
/* richwin_new */
struct RichWin *
richwin_new(int lines, int cols, int begy, int begx,
struct WinBorders *winborders)
{
assert(lines >= 0);
assert(cols >= 0);
assert(begy >= 0);
assert(begx >= 0);
// create a temporary struct for initializing const members of 'richwin'
struct RichWin richwin_init = {
.lines = lines, .cols = cols,
.begy = begy, .begx = begx,
};
// ask curses for a window
richwin_init.win = newwin(lines, cols, begy, begx);
if (richwin_init.win == NULL) {
richwin_error_code = ERROR_WINDOW_CREATION;
return NULL;
}
// allocate window borders struct if user asked for it
if (winborders != NULL) {
richwin_init.winborders = malloc(sizeof *richwin_init.winborders);
if (richwin_init.winborders == NULL) {
richwin_error_code = ERROR_MEMORY_ALLOCATION;
return NULL;
}
*richwin_init.winborders = *winborders;
}
// allocate rich window struct
struct RichWin *richwin = malloc(sizeof *richwin);
if (richwin == NULL) {
richwin_error_code = ERROR_MEMORY_ALLOCATION;
return NULL;
}
// initialize 'richwin' from 'richwin_init'
memcpy(richwin, &richwin_init, sizeof *richwin);
return richwin;
}
/* richwin_new_centered */
struct RichWin *
richwin_new_centered(int lines, int cols, struct WinBorders *winborders)
{
assert(lines <= LINES);
assert(cols <= COLS);
// no need for asserting because this is a convenience wrapper
return richwin_new(lines, cols, (LINES-lines)/2, (COLS-cols)/2,
winborders);
}
/* richwin_border */
int
richwin_border(struct RichWin *richwin)
{
assert(richwin != NULL);
assert(richwin->winborders != NULL);
struct WinBorders *winborders = richwin->winborders;
return wborder(richwin->win,
winborders->ls, winborders->rs, winborders->ts, winborders->bs,
winborders->tl, winborders->tr, winborders->bl, winborders->br);
}
/* richwin_del */
int
richwin_del(struct RichWin *richwin)
{
assert(richwin != NULL);
if (delwin(richwin->win) == ERR) {
return ERR;
}
free(richwin->winborders);
free(richwin);
return OK;
}
|
