fdupes  2.1.2
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ncurses-status.c
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1 /* FDUPES Copyright (c) 2018 Adrian Lopez
2 
3  Permission is hereby granted, free of charge, to any person
4  obtaining a copy of this software and associated documentation files
5  (the "Software"), to deal in the Software without restriction,
6  including without limitation the rights to use, copy, modify, merge,
7  publish, distribute, sublicense, and/or sell copies of the Software,
8  and to permit persons to whom the Software is furnished to do so,
9  subject to the following conditions:
10 
11  The above copyright notice and this permission notice shall be
12  included in all copies or substantial portions of the Software.
13 
14  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
17  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
18  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
19  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
20  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
21 
22 #include "config.h"
23 #include <stdlib.h>
24 #include "ncurses-print.h"
25 #include "ncurses-status.h"
26 
27 struct status_text *status_text_alloc(struct status_text *status, size_t width)
28 {
29  struct status_text *result;
30  wchar_t *newleft;
31  wchar_t *newright;
32 
33  if (status == 0)
34  {
35  result = (struct status_text*) malloc(sizeof(struct status_text));
36  if (result == 0)
37  return 0;
38 
39  result->left = (wchar_t*) malloc((width+1) * sizeof(wchar_t));
40  if (result->left == 0)
41  {
42  free(result);
43  return 0;
44  }
45 
46  result->right = (wchar_t*) malloc((width+1) * sizeof(wchar_t));
47  if (result->right == 0)
48  {
49  free(result->left);
50  free(result);
51  return 0;
52  }
53 
54  result->left[0] = '\0';
55  result->right[0] = '\0';
56 
57  result->width = width;
58  }
59  else
60  {
61  if (status->width >= width)
62  return status;
63 
64  newleft = (wchar_t*) realloc(status->left, (width+1) * sizeof(wchar_t));
65  if (newleft == 0)
66  return 0;
67 
68  newright = (wchar_t*) realloc(status->right, (width+1) * sizeof(wchar_t));
69  if (newright == 0)
70  {
71  free(newleft);
72  return 0;
73  }
74 
75  result = status;
76  result->left = newleft;
77  result->right = newright;
78  result->width = width;
79  }
80 
81  return result;
82 }
83 
84 void free_status_text(struct status_text *status)
85 {
86  free(status->left);
87  free(status->right);
88  free(status);
89 }
90 
91 void format_status_left(struct status_text *status, wchar_t *format, ...)
92 {
93  va_list ap;
94  va_list aq;
95  int size;
96 
97  va_start(ap, format);
98  va_copy(aq, ap);
99 
100  size = vwprintflength(format, aq);
101 
102  status_text_alloc(status, size);
103 
104  vswprintf(status->left, status->width + 1, format, ap);
105 
106  va_end(aq);
107  va_end(ap);
108 }
109 
110 void format_status_right(struct status_text *status, wchar_t *format, ...)
111 {
112  va_list ap;
113  va_list aq;
114  int size;
115 
116  va_start(ap, format);
117  va_copy(aq, ap);
118 
119  size = vwprintflength(format, aq);
120 
121  status_text_alloc(status, size);
122 
123  vswprintf(status->right, status->width + 1, format, ap);
124 
125  va_end(aq);
126  va_end(ap);
127 }
128 
129 void print_status(WINDOW *statuswin, struct status_text *status)
130 {
131  wchar_t *text;
132  size_t cols;
133  size_t x;
134  size_t l;
135 
136  cols = getmaxx(statuswin);
137 
138  text = (wchar_t*)malloc((cols + 1) * sizeof(wchar_t));
139 
140  l = wcslen(status->left);
141  for (x = 0; x < l && x < cols; ++x)
142  text[x] = status->left[x];
143  for (x = l; x < cols; ++x)
144  text[x] = L' ';
145 
146  l = wcslen(status->right);
147  for (x = cols; x >= 1 && l >= 1; --x, --l)
148  text[x - 1] = status->right[l - 1];
149 
150  text[cols] = L'\0';
151 
152  mvwaddnwstr(statuswin, 0, 0, text, wcslen(text));
153 
154  free(text);
155 }
ncurses-status.h
ncurses-print.h
vwprintflength
int vwprintflength(const wchar_t *format, va_list args)
Definition: ncurses-print.c:128
status_text::right
wchar_t * right
Definition: ncurses-status.h:35
status_text
Definition: ncurses-status.h:33
format_status_right
void format_status_right(struct status_text *status, wchar_t *format,...)
Definition: ncurses-status.c:110
status_text::left
wchar_t * left
Definition: ncurses-status.h:34
free_status_text
void free_status_text(struct status_text *status)
Definition: ncurses-status.c:84
print_status
void print_status(WINDOW *statuswin, struct status_text *status)
Definition: ncurses-status.c:129
status_text::width
size_t width
Definition: ncurses-status.h:36
status_text_alloc
struct status_text * status_text_alloc(struct status_text *status, size_t width)
Definition: ncurses-status.c:27
format_status_left
void format_status_left(struct status_text *status, wchar_t *format,...)
Definition: ncurses-status.c:91