blob: 25dbecf74136326c34e83f4efad96fc6cf91fe09 [file] [log] [blame]
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +05301/****************************************************************************
2 * Copyright (c) 2007,2008 Free Software Foundation, Inc. *
3 * *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
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10 * furnished to do so, subject to the following conditions: *
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12 * The above copyright notice and this permission notice shall be included *
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14 * *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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23 * Except as contained in this notice, the name(s) of the above copyright *
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26 * authorization. *
27 ****************************************************************************/
28/*
29 * $Id: test_getstr.c,v 1.8 2008/02/09 18:09:35 tom Exp $
30 *
31 * Author: Thomas E Dickey
32 *
33 * Demonstrate the getstr functions from the curses library.
34
35 int getstr(char *str);
36 int getnstr(char *str, int n);
37 int wgetstr(WINDOW *win, char *str);
38 int wgetnstr(WINDOW *win, char *str, int n);
39 int mvgetstr(int y, int x, char *str);
40 int mvwgetstr(WINDOW *win, int y, int x, char *str);
41 int mvgetnstr(int y, int x, char *str, int n);
42 int mvwgetnstr(WINDOW *, int y, int x, char *str, int n);
43 */
44
45#include <test.priv.h>
46
47#if HAVE_CHGAT
48/* Solaris SVr4 curses lacks wchgat, mvgetnstr, mvwgetnstr */
49
50#define BASE_Y 6
51#define MAX_COLS 1024
52
53typedef enum {
54 eGetStr = 0,
55 eGetNStr,
56 eMvGetStr,
57 eMvGetNStr,
58 eMaxFlavor
59} Flavors;
60
61static bool
62Quit(int ch)
63{
64 return (ch == ERR || ch == 'q' || ch == QUIT || ch == ESCAPE);
65}
66
67static int
68Remainder(WINDOW *txtwin)
69{
70 int result = getmaxx(txtwin) - getcurx(txtwin);
71 return (result > 0) ? result : 0;
72}
73
74/*
75 * Show a highlighted line in the place where input will happen.
76 */
77static void
78ShowPrompt(WINDOW *txtwin, int limit)
79{
80 wchgat(txtwin, limit, A_REVERSE, 0, NULL);
81 wnoutrefresh(txtwin);
82}
83
84static void
85MovePrompt(WINDOW *txtwin, int limit, int y, int x)
86{
87 wchgat(txtwin, Remainder(txtwin), A_NORMAL, 0, NULL);
88 wmove(txtwin, y, x);
89 ShowPrompt(txtwin, limit);
90}
91
92static int
93ShowFlavor(WINDOW *strwin, WINDOW *txtwin, int flavor, int limit)
94{
95 const char *name = "?";
96 bool limited = FALSE;
97 bool wins = (txtwin != stdscr);
98 int result;
99
100 switch (flavor) {
101 case eGetStr:
102 name = wins ? "wgetstr" : "getstr";
103 break;
104 case eGetNStr:
105 limited = TRUE;
106 name = wins ? "wgetnstr" : "getnstr";
107 break;
108 case eMvGetStr:
109 name = wins ? "mvwgetstr" : "mvgetstr";
110 break;
111 case eMvGetNStr:
112 limited = TRUE;
113 name = wins ? "mvwgetnstr" : "mvgetnstr";
114 break;
115 case eMaxFlavor:
116 break;
117 }
118
119 wmove(strwin, 0, 0);
120 werase(strwin);
121
122 if (limited) {
123 wprintw(strwin, "%s(%d):", name, limit);
124 } else {
125 wprintw(strwin, "%s:", name);
126 }
127 result = limited ? limit : Remainder(txtwin);
128 ShowPrompt(txtwin, result);
129
130 wnoutrefresh(strwin);
131 return result;
132}
133
134static int
135test_getstr(int level, char **argv, WINDOW *strwin)
136{
137 WINDOW *txtbox = 0;
138 WINDOW *txtwin = 0;
139 FILE *fp;
140 int ch;
141 int rc;
142 int txt_x = 0, txt_y = 0;
143 int base_y;
144 int flavor = 0;
145 int limit = getmaxx(strwin) - 5;
146 int actual;
147
148 char buffer[MAX_COLS];
149
150 if (argv[level] == 0) {
151 beep();
152 return FALSE;
153 }
154
155 if (level > 1) {
156 txtbox = newwin(LINES - BASE_Y, COLS - level, BASE_Y, level);
157 box(txtbox, 0, 0);
158 wnoutrefresh(txtbox);
159
160 txtwin = derwin(txtbox,
161 getmaxy(txtbox) - 2,
162 getmaxx(txtbox) - 2,
163 1, 1);
164 base_y = 0;
165 } else {
166 txtwin = stdscr;
167 base_y = BASE_Y;
168 }
169
170 keypad(txtwin, TRUE); /* enable keyboard mapping */
171 (void) cbreak(); /* take input chars one at a time, no wait for \n */
172 (void) noecho(); /* don't echo input */
173
174 txt_y = base_y;
175 txt_x = 0;
176 wmove(txtwin, txt_y, txt_x);
177
178 if ((fp = fopen(argv[level], "r")) != 0) {
179 while ((ch = fgetc(fp)) != EOF) {
180 if (waddch(txtwin, UChar(ch)) != OK) {
181 break;
182 }
183 }
184 fclose(fp);
185 } else {
186 wprintw(txtwin, "Cannot open:\n%s", argv[1]);
187 }
188
189 wmove(txtwin, txt_y, txt_x);
190 actual = ShowFlavor(strwin, txtwin, flavor, limit);
191 while (!Quit(ch = mvwgetch(txtwin, txt_y, txt_x))) {
192 switch (ch) {
193 case KEY_DOWN:
194 case 'j':
195 if (txt_y < getmaxy(txtwin) - 1) {
196 MovePrompt(txtwin, actual, ++txt_y, txt_x);
197 } else {
198 beep();
199 }
200 break;
201 case KEY_UP:
202 case 'k':
203 if (txt_y > base_y) {
204 MovePrompt(txtwin, actual, --txt_y, txt_x);
205 } else {
206 beep();
207 }
208 break;
209 case KEY_LEFT:
210 case 'h':
211 if (txt_x > 0) {
212 MovePrompt(txtwin, actual, txt_y, --txt_x);
213 } else {
214 beep();
215 }
216 break;
217 case KEY_RIGHT:
218 case 'l':
219 if (txt_x < getmaxx(txtwin) - 1) {
220 MovePrompt(txtwin, actual, txt_y, ++txt_x);
221 } else {
222 beep();
223 }
224 break;
225
226 case 'w':
227 test_getstr(level + 1, argv, strwin);
228 if (txtbox != 0) {
229 touchwin(txtbox);
230 wnoutrefresh(txtbox);
231 } else {
232 touchwin(txtwin);
233 wnoutrefresh(txtwin);
234 }
235 break;
236
237 case '-':
238 if (limit > 0) {
239 actual = ShowFlavor(strwin, txtwin, flavor, --limit);
240 MovePrompt(txtwin, actual, txt_y, txt_x);
241 } else {
242 beep();
243 }
244 break;
245
246 case '+':
247 actual = ShowFlavor(strwin, txtwin, flavor, ++limit);
248 MovePrompt(txtwin, actual, txt_y, txt_x);
249 break;
250
251 case '<':
252 if (flavor > 0) {
253 actual = ShowFlavor(strwin, txtwin, --flavor, limit);
254 MovePrompt(txtwin, actual, txt_y, txt_x);
255 } else {
256 beep();
257 }
258 break;
259
260 case '>':
261 if (flavor + 1 < eMaxFlavor) {
262 actual = ShowFlavor(strwin, txtwin, ++flavor, limit);
263 MovePrompt(txtwin, actual, txt_y, txt_x);
264 } else {
265 beep();
266 }
267 break;
268
269 case ':':
270 actual = ShowFlavor(strwin, txtwin, flavor, limit);
271 *buffer = '\0';
272 rc = ERR;
273 echo();
274 wattrset(txtwin, A_REVERSE);
275 switch (flavor) {
276 case eGetStr:
277 if (txtwin != stdscr) {
278 wmove(txtwin, txt_y, txt_x);
279 rc = wgetstr(txtwin, buffer);
280 } else {
281 move(txt_y, txt_x);
282 rc = getstr(buffer);
283 }
284 break;
285 case eGetNStr:
286 if (txtwin != stdscr) {
287 wmove(txtwin, txt_y, txt_x);
288 rc = wgetnstr(txtwin, buffer, limit);
289 } else {
290 move(txt_y, txt_x);
291 rc = getnstr(buffer, limit);
292 }
293 break;
294 case eMvGetStr:
295 if (txtwin != stdscr) {
296 rc = mvwgetstr(txtwin, txt_y, txt_x, buffer);
297 } else {
298 rc = mvgetstr(txt_y, txt_x, buffer);
299 }
300 break;
301 case eMvGetNStr:
302 if (txtwin != stdscr) {
303 rc = mvwgetnstr(txtwin, txt_y, txt_x, buffer, limit);
304 } else {
305 rc = mvgetnstr(txt_y, txt_x, buffer, limit);
306 }
307 break;
308 case eMaxFlavor:
309 break;
310 }
311 noecho();
312 wattrset(txtwin, A_NORMAL);
313 wprintw(strwin, "%d:%s", rc, buffer);
314 wnoutrefresh(strwin);
315 break;
316 default:
317 beep();
318 break;
319 }
320 doupdate();
321 }
322 if (level > 1) {
323 delwin(txtwin);
324 delwin(txtbox);
325 }
326 return TRUE;
327}
328
329int
330main(int argc, char *argv[])
331{
332 WINDOW *chrbox;
333 WINDOW *strwin;
334
335 setlocale(LC_ALL, "");
336
337 if (argc < 2) {
338 fprintf(stderr, "usage: %s file\n", argv[0]);
339 return EXIT_FAILURE;
340 }
341
342 initscr();
343
344 chrbox = derwin(stdscr, BASE_Y, COLS, 0, 0);
345 box(chrbox, 0, 0);
346 wnoutrefresh(chrbox);
347
348 strwin = derwin(chrbox, 4, COLS - 2, 1, 1);
349
350 test_getstr(1, argv, strwin);
351
352 endwin();
353 ExitProgram(EXIT_SUCCESS);
354}
355
356#else
357int
358main(void)
359{
360 printf("This program requires the curses chgat function\n");
361 ExitProgram(EXIT_FAILURE);
362}
363#endif