Commit | Line | Data |
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9b9f600e KA |
1 | # include "curses.ext" |
2 | # include "cr_ex.h" | |
3 | ||
4 | # define HARDTABS 8 | |
5 | ||
6 | extern char *tgoto(); | |
7 | int plodput(); | |
8 | ||
9 | /* | |
10 | * Terminal driving and line formatting routines. | |
11 | * Basic motion optimizations are done here as well | |
12 | * as formatting of lines (printing of control characters, | |
13 | * line numbering and the like). | |
14 | * | |
15 | * %G% (Berkeley) @(#)cr_put.c 1.1 | |
16 | */ | |
17 | ||
18 | /* | |
19 | * Sync the position of the output cursor. | |
20 | * Most work here is rounding for terminal boundaries getting the | |
21 | * column position implied by wraparound or the lack thereof and | |
22 | * rolling up the screen to get destline on the screen. | |
23 | */ | |
24 | ||
25 | static int outcol, outline, destcol, destline, plodcnt; | |
26 | ||
27 | WINDOW *_win; | |
28 | ||
29 | mvcur(ly, lx, y, x) | |
30 | int ly, lx, y, x; { | |
31 | ||
32 | #ifdef DEBUG | |
33 | fprintf(outf, "MVCUR: moving cursor from (%d,%d) to (%d,%d)\n", ly, lx, y, x); | |
34 | #endif | |
35 | destcol = x; | |
36 | destline = y; | |
37 | outcol = lx; | |
38 | outline = ly; | |
39 | fgoto(); | |
40 | } | |
41 | ||
42 | fgoto() { | |
43 | ||
44 | reg char *cgp; | |
45 | reg int l, c; | |
46 | ||
47 | if (destcol > COLS - 1) { | |
48 | destline += destcol / COLS; | |
49 | destcol %= COLS; | |
50 | } | |
51 | if (outcol > COLS - 1) { | |
52 | l = (outcol + 1) / COLS; | |
53 | outline += l; | |
54 | outcol %= COLS; | |
55 | if (AM == 0) { | |
56 | while (l > 0) { | |
57 | putchar('\n'); | |
58 | if (_pfast) | |
59 | putchar('\r'); | |
60 | l--; | |
61 | } | |
62 | outcol = 0; | |
63 | } | |
64 | if (outline > LINES - 1) { | |
65 | destline -= outline - (LINES - 1); | |
66 | outline = LINES - 1; | |
67 | } | |
68 | } | |
69 | if (destline > LINES - 1) { | |
70 | l = destline; | |
71 | destline = LINES - 1; | |
72 | if (outline < LINES - 1) { | |
73 | c = destcol; | |
74 | if (_pfast == 0 && !CA) | |
75 | destcol = 0; | |
76 | fgoto(); | |
77 | destcol = c; | |
78 | } | |
79 | while (l > LINES - 1) { | |
80 | putchar('\n'); | |
81 | l--; | |
82 | if (_pfast == 0) | |
83 | outcol = 0; | |
84 | } | |
85 | } | |
86 | if (destline < outline && !(CA || UP != NULL)) | |
87 | destline = outline; | |
88 | cgp = tgoto(CM, destcol, destline); | |
89 | if (CA) | |
90 | if (plod(strlen(cgp)) > 0) | |
91 | plod(0); | |
92 | else | |
93 | tputs(cgp, 0, _putchar); | |
94 | else | |
95 | plod(0); | |
96 | outline = destline; | |
97 | outcol = destcol; | |
98 | } | |
99 | ||
100 | char | |
101 | _putchar(c) | |
102 | reg char c; { | |
103 | ||
104 | putchar(c); | |
105 | #ifdef DEBUG | |
106 | fprintf(outf, "_PUTCHAR(%s)\n", unctrl(c)); | |
107 | #endif | |
108 | } | |
109 | ||
110 | extern bool plodflg; | |
111 | extern int plodcnt; | |
112 | ||
113 | plod(cnt) | |
114 | int cnt; { | |
115 | ||
116 | reg int i, j, k; | |
117 | reg int soutcol, soutline; | |
118 | reg char c; | |
119 | ||
120 | plodcnt = plodflg = cnt; | |
121 | soutcol = outcol; | |
122 | soutline = outline; | |
123 | if (HO) { | |
124 | if (GT) | |
125 | i = (destcol / HARDTABS) + (destcol % HARDTABS); | |
126 | else | |
127 | i = destcol; | |
128 | if (destcol >= outcol) { | |
129 | j = destcol / HARDTABS - outcol / HARDTABS; | |
130 | if (GT && j) | |
131 | j += destcol % HARDTABS; | |
132 | else | |
133 | j = destcol - outcol; | |
134 | } else | |
135 | if (outcol - destcol <= i && (BS || BC)) | |
136 | i = j = outcol - destcol; | |
137 | else | |
138 | j = i + 1; | |
139 | k = outline - destline; | |
140 | if (k < 0) | |
141 | k = -k; | |
142 | j += k; | |
143 | if (i + destline < j) { | |
144 | tputs(HO, 0, plodput); | |
145 | outcol = outline = 0; | |
146 | } else if (LL) { | |
147 | k = (LINES - 1) - destline; | |
148 | if (i + k + 2 < j) { | |
149 | tputs(LL, 0, plodput); | |
150 | outcol = 0; | |
151 | outline = LINES - 1; | |
152 | } | |
153 | } | |
154 | } | |
155 | if (GT) | |
156 | i = destcol % HARDTABS + destcol / HARDTABS; | |
157 | else | |
158 | i = destcol; | |
159 | /* | |
160 | if (BT && outcol > destcol && (j = (((outcol+7) & ~7) - destcol - 1) >> 3)) { | |
161 | j *= (k = strlen(BT)); | |
162 | if ((k += (destcol&7)) > 4) | |
163 | j += 8 - (destcol&7); | |
164 | else | |
165 | j += k; | |
166 | } else | |
167 | */ | |
168 | j = outcol - destcol; | |
169 | /* | |
170 | * If we will later need a \n which will turn into a \r\n by | |
171 | * the system or the terminal, then don't bother to try to \r. | |
172 | */ | |
173 | if ((NONL || !_pfast) && outline < destline) | |
174 | goto dontcr; | |
175 | /* | |
176 | * If the terminal will do a \r\n and there isn't room for it, | |
177 | * then we can't afford a \r. | |
178 | */ | |
179 | if (NC && outline >= destline) | |
180 | goto dontcr; | |
181 | /* | |
182 | * If it will be cheaper, or if we can't back up, then send | |
183 | * a return preliminarily. | |
184 | */ | |
185 | if (j > i + 1 || outcol > destcol && !BS && !BC) { | |
186 | plodput('\r'); | |
187 | if (NC) { | |
188 | plodput('\n'); | |
189 | outline++; | |
190 | } | |
191 | outcol = 0; | |
192 | } | |
193 | dontcr: | |
194 | while (outline < destline) { | |
195 | outline++; | |
196 | plodput('\n'); | |
197 | if (plodcnt < 0) | |
198 | goto out; | |
199 | if (NONL || _pfast == 0) | |
200 | outcol = 0; | |
201 | } | |
202 | if (BT) | |
203 | k = strlen(BT); | |
204 | while (outcol > destcol) { | |
205 | if (plodcnt < 0) | |
206 | goto out; | |
207 | /* | |
208 | if (BT && outcol - destcol > 4+k) { | |
209 | tputs(BT, 0, plodput); | |
210 | outcol--; | |
211 | outcol &= ~7; | |
212 | continue; | |
213 | } | |
214 | */ | |
215 | outcol--; | |
216 | if (BC) | |
217 | tputs(BC, 0, plodput); | |
218 | else | |
219 | plodput('\b'); | |
220 | } | |
221 | while (outline > destline) { | |
222 | outline--; | |
223 | tputs(UP, 0, plodput); | |
224 | if (plodcnt < 0) | |
225 | goto out; | |
226 | } | |
227 | if (GT && destcol - outcol > 1) { | |
228 | for (;;) { | |
229 | i = (outcol / HARDTABS + 1) * HARDTABS; | |
230 | if (i > destcol) | |
231 | break; | |
232 | if (TA) | |
233 | tputs(TA, 0, plodput); | |
234 | else | |
235 | plodput('\t'); | |
236 | outcol = i; | |
237 | } | |
238 | if (destcol - outcol > 4 && i < COLS && (BC || BS)) { | |
239 | if (TA) | |
240 | tputs(TA, 0, plodput); | |
241 | else | |
242 | plodput('\t'); | |
243 | outcol = i; | |
244 | while (outcol > destcol) { | |
245 | outcol--; | |
246 | if (BC) | |
247 | tputs(BC, 0, plodput); | |
248 | else | |
249 | plodput('\b'); | |
250 | } | |
251 | } | |
252 | } | |
253 | while (outcol < destcol) { | |
254 | if (_win != NULL) | |
255 | if (plodflg) /* avoid a complex calculation */ | |
256 | plodcnt--; | |
257 | else { | |
258 | c = _win->_y[outline-_win->_begy][outcol-_win->_begx]; | |
259 | if ((c&_STANDOUT) == (curscr->_flags&_STANDOUT)) | |
260 | putchar(c); | |
261 | else | |
262 | goto nondes; | |
263 | } | |
264 | else | |
265 | nondes: | |
266 | if (ND) | |
267 | tputs(ND, 0, plodput); | |
268 | else | |
269 | plodput(' '); | |
270 | outcol++; | |
271 | if (plodcnt < 0) | |
272 | goto out; | |
273 | } | |
274 | out: | |
275 | if (plodflg) { | |
276 | outcol = soutcol; | |
277 | outline = soutline; | |
278 | } | |
279 | return(plodcnt); | |
280 | } | |
281 | ||
282 | /* | |
283 | * Move (slowly) to destination. | |
284 | * Hard thing here is using home cursor on really deficient terminals. | |
285 | * Otherwise just use cursor motions, hacking use of tabs and overtabbing | |
286 | * and backspace. | |
287 | */ | |
288 | ||
289 | static bool plodflg; | |
290 | ||
291 | plodput(c) | |
292 | reg char c; { | |
293 | ||
294 | if (plodflg) | |
295 | plodcnt--; | |
296 | else { | |
297 | putchar(c); | |
298 | #ifdef DEBUG | |
299 | fprintf(outf, "PLODPUT(%s)\n", unctrl(c)); | |
300 | #endif | |
301 | } | |
302 | } | |
303 | ||
304 | /* | |
305 | * Put with padding | |
306 | */ | |
307 | putpad(cp) | |
308 | reg char *cp; { | |
309 | ||
310 | fflush(stdout); | |
311 | #ifdef DEBUG | |
312 | fprintf(outf, "PUTPAD: _puts(\"%s\")\n", cp); | |
313 | #endif | |
314 | _puts(cp); | |
315 | } |