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9212 ripley 1 
/*
2 
 *  R : A Computer Language for Statistical Data Analysis
3 
 *  file pager.c
21959 ripley 4 
 *  Copyright (C) 1998--2002  Guido Masarotto and Brian Ripley
67595 ripley 5 
 *  Copyright (C) 2004--8     The R Foundation
6 
 *  Copyright (C) 2004--2014  The R Core Team
9212 ripley 7 
 *
8 
 *  This program is free software; you can redistribute it and/or modify
9 
 *  it under the terms of the GNU General Public License as published by
10 
 *  the Free Software Foundation; either version 2 of the License, or
11 
 *  (at your option) any later version.
12 
 *
13 
 *  This program is distributed in the hope that it will be useful,
14 
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
15 
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 
 *  GNU General Public License for more details.
17 
 *
18 
 *  You should have received a copy of the GNU General Public License
42300 ripley 19 
 *  along with this program; if not, a copy is available at
68956 ripley 20 
 *  https://www.R-project.org/Licenses/
9212 ripley 21 
 */
22 
 
23 
#ifdef HAVE_CONFIG_H
24 
#include <config.h>
25 
#endif
26 
 
32888 ripley 27 
#include "win-nls.h"
28 
 
9212 ripley 29 
#ifdef Win32
30 
#define USE_MDI 1
31 
#endif
32 
 
36901 ripley 33 
#define WIN32_LEAN_AND_MEAN 1
9212 ripley 34 
#include <windows.h>
35 
#include "graphapp/ga.h"
36 
#ifdef USE_MDI
37 
#include "graphapp/stdimg.h"
38 
#endif
39 
#include "console.h"
40 
#include "consolestructs.h"
41 
#include "rui.h"
66108 ripley 42 
#include <Startup.h> /* for CharacterMode */
9212 ripley 43 
 
44016 ripley 44 
#define CE_UTF8 1
45 
extern size_t Rf_utf8towcs(wchar_t *wc, const char *s, size_t n);
46 
 
9212 ripley 47 
#define PAGERMAXKEPT 12
48 
#define PAGERMAXTITLE 128
49 
 
50 
static int pagerActualKept = 0, pagerActualShown;
51 
static pager pagerInstance = NULL;
52 
static menubar pagerBar = NULL;
53 
static xbuf pagerXbuf[PAGERMAXKEPT];
54 
static char pagerTitles[PAGERMAXKEPT][PAGERMAXTITLE+8];
55 
static menuitem pagerMenus[PAGERMAXKEPT];
56 
static int pagerRow[PAGERMAXKEPT];
44201 ripley 57 
static void pagerupdateview(void);
9212 ripley 58 
 
28991 murdoch 59 
void menueditoropen(control m);
60 
void menueditornew(control m);
61 
 
9212 ripley 62 
int pagerMultiple, haveusedapager;
63 
 
64 
 
65 
/*
66 
   To be fixed: during creation, memory is allocated two times
67 
   (faster for small files but a big waste otherwise)
68 
*/
44016 ripley 69 
static xbuf file2xbuf(const char *name, int enc, int del)
9212 ripley 70 
{
71 
    HANDLE f;
72 
    DWORD rr, vv;
43882 ripley 73 
    char *p;
74 
    xlong dim, cnt;
9212 ripley 75 
    xint  ms;
76 
    xbuf  xb;
43882 ripley 77 
    wchar_t *wp, *q;
78 
 
44016 ripley 79 
    if (enc == CE_UTF8) {
80 
	wchar_t wfn[MAX_PATH+1];
81 
	Rf_utf8towcs(wfn, name, MAX_PATH+1);
82 
	f = CreateFileW(wfn, GENERIC_READ, FILE_SHARE_READ,
45070 ripley 83 
			NULL, OPEN_EXISTING, 0, NULL);
44016 ripley 84 
    } else
85 
	f = CreateFile(name, GENERIC_READ, FILE_SHARE_READ,
86 
		       NULL, OPEN_EXISTING, 0, NULL);
9212 ripley 87 
    if (f == INVALID_HANDLE_VALUE) {
33001 ripley 88 
	R_ShowMessage(G_("Error opening file"));
9212 ripley 89 
	return NULL;
90 
    }
91 
    vv = GetFileSize(f, NULL);
11169 ripley 92 
    p = (char *) malloc((size_t) vv + 1);
9212 ripley 93 
    if (!p) {
94 
	CloseHandle(f);
33001 ripley 95 
	R_ShowMessage(G_("Insufficient memory to display file in internal pager"));
9212 ripley 96 
	return NULL;
97 
    }
98 
    ReadFile(f, p, vv, &rr, NULL);
99 
    CloseHandle(f);
100 
    if (del) DeleteFile(name);
101 
    p[rr] = '\0';
43882 ripley 102 
    cnt = mbstowcs(NULL, p, 0);
103 
    wp = (wchar_t *) malloc((cnt+1) * sizeof(wchar_t));
104 
    mbstowcs(wp, p, cnt+1);
105 
    for (q = wp, ms = 1, dim = cnt; *q; q++) {
9212 ripley 106 
	if (*q == '\t')
107 
	    dim += TABSIZE;
108 
	else if (*q == '\n') {
45070 ripley 109 
	    dim++;
9212 ripley 110 
	    ms++;
45070 ripley 111 
	}
9212 ripley 112 
    }
43882 ripley 113 
    free(p);
12256 pd 114 
    if ((xb = newxbuf(dim + 1, ms + 1, 1)))
43882 ripley 115 
	for (q = wp, ms = 0; *q; q++) {
116 
	    if (*q == L'\r') continue;
117 
	    if (*q == L'\n') {
9212 ripley 118 
		ms++;
43882 ripley 119 
		xbufaddxc(xb, *q);
9212 ripley 120 
		/* next line interprets underlining in help files */
43882 ripley 121 
		if (q[1] ==  L'_' && q[2] == L'\b') xb->user[ms] = -2;
122 
	    } else xbufaddxc(xb, *q);
9212 ripley 123 
	}
43882 ripley 124 
    free(wp);
9212 ripley 125 
    return xb;
126 
}
127 
 
128 
static void delpager(control m)
129 
{
130 
    int i;
131 
 
132 
    ConsoleData p = getdata(m);
133 
    if (!pagerMultiple) {
43882 ripley 134 
	for (i = 0; i < pagerActualKept; i++) xbufdel(pagerXbuf[i]);
9212 ripley 135 
	pagerActualKept = 0;
136 
    }
137 
    else
138 
	xbufdel(p->lbuf);
139 
    freeConsoleData(getdata(m));
140 
}
141 
 
21959 ripley 142 
void pagerbclose(control m)
9212 ripley 143 
{
144 
    show(RConsole);
145 
    if (!pagerMultiple) {
45070 ripley 146 
	hide(pagerInstance);
9212 ripley 147 
	del(pagerInstance);
148 
	pagerInstance = pagerBar = NULL;
149 
    }
150 
    else {
45070 ripley 151 
	hide(m);
9212 ripley 152 
	del(m);
153 
    }
154 
}
155 
 
156 
static void pagerclose(control m)
157 
{
158 
    pagerbclose(getdata(m));
159 
}
160 
 
161 
static void pagerprint(control m)
162 
{
163 
    consoleprint(getdata(m));
164 
}
165 
 
10987 ripley 166 
static void pagersavefile(control m)
167 
{
17261 ripley 168 
    consolesavefile(getdata(m), 1);
10987 ripley 169 
}
170 
 
9212 ripley 171 
static void pagercopy(control m)
172 
{
173 
    control c = getdata(m);
174 
 
175 
    if (consolecancopy(c)) consolecopy(c);
33001 ripley 176 
    else R_ShowMessage(G_("No selection"));
9212 ripley 177 
}
178 
 
179 
static void pagerpaste(control m)
180 
{
181 
    control c = getdata(m);
182 
 
10345 ripley 183 
    if (CharacterMode != RGui) {
45070 ripley 184 
	R_ShowMessage(G_("No RGui console to paste to"));
185 
	return;
10345 ripley 186 
    }
9212 ripley 187 
    if (!consolecancopy(c)) {
45070 ripley 188 
	R_ShowMessage(G_("No selection"));
189 
	return;
9212 ripley 190 
    } else {
45070 ripley 191 
	consolecopy(c);
9212 ripley 192 
    }
193 
    if (consolecanpaste(RConsole)) {
194 
	consolepaste(RConsole);
195 
	show(RConsole);
196 
    }
197 
}
198 
 
28544 murdoch 199 
static void pagerpastecmds(control m)
200 
{
201 
    control c = getdata(m);
202 
 
203 
    if (CharacterMode != RGui) {
45070 ripley 204 
	R_ShowMessage(G_("No RGui console to paste to"));
205 
	return;
28544 murdoch 206 
    }
207 
    if (!consolecancopy(c)) {
45070 ripley 208 
	R_ShowMessage(G_("No selection"));
209 
	return;
28544 murdoch 210 
    } else {
45070 ripley 211 
	consolecopy(c);
28544 murdoch 212 
    }
213 
    if (consolecanpaste(RConsole)) {
214 
	consolepastecmds(RConsole);
215 
	show(RConsole);
216 
    }
217 
}
218 
 
9212 ripley 219 
static void pagerselectall(control m)
220 
{
221 
    control c = getdata(m);
222 
 
223 
    consoleselectall(c);
224 
}
225 
 
27662 murdoch 226 
static void pagerstayontop(control m)
227 
{
228 
    control c = getdata(m);
229 
 
27686 murdoch 230 
    BringToTop(c, 2);
27662 murdoch 231 
}
232 
 
9212 ripley 233 
static void pagerconsole(control m)
234 
{
235 
    show(RConsole);
236 
}
237 
 
238 
static void pagerchangeview(control m)
239 
{
240 
    ConsoleData p = getdata(pagerInstance);
241 
    int i = getvalue(m);
242 
 
243 
    if (i >= pagerActualKept) return;
244 
    uncheck(pagerMenus[pagerActualShown]);
245 
    /* save position of middle line of pager display */
246 
    pagerRow[pagerActualShown] = FV + ROWS/2;
247 
    pagerActualShown = i;
248 
    check(pagerMenus[i]);
249 
    pagerupdateview();
250 
}
251 
 
44201 ripley 252 
static void pagerupdateview(void)
9212 ripley 253 
{
254 
    control c = pagerInstance;
255 
    ConsoleData p = getdata(c);
256 
 
257 
    settext(pagerInstance, &pagerTitles[pagerActualShown][4]);
258 
    p->lbuf = pagerXbuf[pagerActualShown];
259 
    setfirstvisible(c, pagerRow[pagerActualShown] - ROWS/2);
260 
    setfirstcol(c, 0);
261 
    show(c);
262 
}
263 
 
45070 ripley 264 
static int pageraddfile(const char *wtitle,
44016 ripley 265 
			const char *filename, int enc,
43767 ripley 266 
			int deleteonexit)
9212 ripley 267 
{
268 
    ConsoleData p = getdata(pagerInstance);
269 
    int i;
44016 ripley 270 
    xbuf nxbuf = file2xbuf(filename, enc, deleteonexit);
9212 ripley 271 
 
272 
    if (!nxbuf) {
22614 ripley 273 
	/* R_ShowMessage("File not found or memory insufficient"); */
9212 ripley 274 
	return 0;
275 
    }
276 
    if (pagerActualKept == PAGERMAXKEPT) {
45070 ripley 277 
	pagerActualKept -= 1;
278 
	xbufdel(pagerXbuf[pagerActualKept]);
9212 ripley 279 
    }
280 
    if(pagerActualKept > 0)
281 
	pagerRow[0] = FV;
282 
    for (i = pagerActualKept; i > 0; i--) {
283 
	pagerXbuf[i] = pagerXbuf[i - 1];
284 
	pagerRow[i] = pagerRow[i - 1];
285 
	strcpy(&pagerTitles[i][4], &pagerTitles[i - 1][4]);
286 
    }
287 
    pagerXbuf[0] = nxbuf;
288 
    pagerRow[0] = 0;
289 
    strcpy(&pagerTitles[0][4], wtitle);
290 
    pagerActualKept += 1;
291 
    for (i = 0; i < pagerActualKept; i++) {
292 
	enable(pagerMenus[i]);
293 
	settext(pagerMenus[i], pagerTitles[i]);
294 
    }
295 
    for (i = pagerActualKept; i < PAGERMAXKEPT; i++)
296 
	disable(pagerMenus[i]);
297 
    uncheck(pagerMenus[pagerActualShown]);
298 
    pagerActualShown = 0;
299 
    check(pagerMenus[pagerActualShown]);
300 
    return 1;
301 
}
302 
 
28544 murdoch 303 
static MenuItem PagerPopup[] = {		   /* Numbers used below */
33001 ripley 304 
    {GN_("Copy"), pagercopy, 'C', 0},			   /* 0 */
305 
    {GN_("Paste to console"), pagerpaste, 'V', 0},	   /* 1 */
306 
    {GN_("Paste commands to console"), pagerpastecmds, 0, 0},   /* 2 */
307 
    {GN_("Select all"), pagerselectall, 'A', 0},		   /* 3 */
28991 murdoch 308 
    {"-", 0, 0, 0},
33001 ripley 309 
    {GN_("Stay on top"), pagerstayontop, 0, 0},		   /* 5 */
28991 murdoch 310 
    {"-", 0, 0, 0},
33001 ripley 311 
    {GN_("Close"), pagerclose, 0, 0},			   /* 7 */
9212 ripley 312 
    LASTMENUITEM
313 
};
314 
 
315 
static void pagermenuact(control m)
316 
{
317 
    control c = getdata(m);
318 
    ConsoleData p = getdata(c);
319 
    if (consolecancopy(c)) {
45070 ripley 320 
	enable(p->mcopy);
321 
	enable(p->mpopcopy);
322 
	if (CharacterMode == RGui) {
10345 ripley 323 
	    enable(p->mpaste);
28544 murdoch 324 
	    enable(p->mpastecmds);
10345 ripley 325 
	    enable(p->mpoppaste);
28544 murdoch 326 
	    enable(p->mpoppastecmds);
10345 ripley 327 
	}
9212 ripley 328 
    } else {
45070 ripley 329 
	disable(p->mcopy);
330 
	disable(p->mpopcopy);
331 
	disable(p->mpaste);
332 
	disable(p->mpastecmds);
333 
	disable(p->mpoppaste);
334 
	disable(p->mpoppastecmds);
9212 ripley 335 
    }
27662 murdoch 336 
    if (ismdi())
45070 ripley 337 
	disable(PagerPopup[5].m);
27686 murdoch 338 
    else {
45070 ripley 339 
	enable(PagerPopup[5].m);
340 
	if (isTopmost(c))
341 
	    check(PagerPopup[5].m);
342 
	else
343 
	    uncheck(PagerPopup[5].m);
27686 murdoch 344 
    }
9212 ripley 345 
}
346 
 
347 
 
27357 murdoch 348 
#define MCHECK(a) if (!(a)) {freeConsoleData(p);del(c);return NULL;}
44201 ripley 349 
RECT *RgetMDIsize(void); /* in rui.c */
27357 murdoch 350 
 
44201 ripley 351 
static pager pagercreate(void)
9212 ripley 352 
{
353 
    ConsoleData p;
354 
    int w, h, i, x, y, w0, h0;
355 
    pager c;
356 
    menuitem m;
357 
 
358 
    p = newconsoledata((consolefn) ? consolefn : FixedFont,
11588 ripley 359 
		       pagerrow, pagercol, 0, 0,
46784 murdoch 360 
		       guiColors,
51948 murdoch 361 
		       PAGER, 0, 0);
9212 ripley 362 
    if (!p) return NULL;
363 
 
364 
/*    if (ismdi()) {
45070 ripley 365 
      x = y = w = h = 0;
366 
      }
367 
      else {
368 
      w = WIDTH ;
369 
      h = HEIGHT;
370 
      x = (devicewidth(NULL) - w) / 2;
371 
      y = (deviceheight(NULL) - h) / 2 ;
372 
      } */
9212 ripley 373 
    w = WIDTH ;
374 
    h = HEIGHT;
375 
    /* centre a single pager, randomly place each of multiple pagers */
376 
#ifdef USE_MDI
377 
    if(ismdi()) {
378 
	RECT *pR = RgetMDIsize();
379 
	w0 = pR->right;
380 
	h0 = pR->bottom;
381 
    } else {
382 
#endif
383 
	w0 = devicewidth(NULL);
384 
	h0 = deviceheight(NULL);
385 
#ifdef USE_MDI
386 
    }
387 
#endif
388 
    x = (w0 - w) / 2; x = x > 20 ? x:20;
389 
    y = (h0 - h) / 2; y = y > 20 ? y:20;
390 
    if(pagerMultiple) {
391 
#ifdef Win32
392 
	DWORD rand = GetTickCount();
393 
#else
394 
	int rand = 0;
395 
#endif
396 
	int w0 = 0.4*x, h0 = 0.4*y;
397 
	w0 = w0 > 20 ? w0 : 20;
398 
	h0 = h0 > 20 ? h0 : 20;
399 
	x += (rand % w0) - w0/2;
400 
	y += ((rand/w0) % h0) - h0/2;
401 
    }
402 
    c = (pager) newwindow("PAGER", rect(x, y, w, h),
403 
			  Document | StandardWindow | Menubar |
404 
			  VScrollbar | HScrollbar | TrackMouse);
405 
    if (!c) {
45070 ripley 406 
	freeConsoleData(p);
407 
	return NULL;
9212 ripley 408 
    }
409 
    setdata(c, p);
410 
    if(h == 0) HEIGHT = getheight(c);
411 
    if(w == 0) WIDTH  = getwidth(c);
412 
    COLS = WIDTH / FW - 1;
413 
    ROWS = HEIGHT / FH - 1;
414 
    BORDERX = (WIDTH - COLS*FW) / 2;
415 
    BORDERY = (HEIGHT - ROWS*FH) / 2;
416 
    gsetcursor(c, ArrowCursor);
417 
    gchangescrollbar(c, VWINSB, 0, 0, ROWS, 0);
418 
    gchangescrollbar(c, HWINSB, 0, COLS-1, COLS, 1);
46784 murdoch 419 
    setbackground(c, guiColors[pagerbg]);
9212 ripley 420 
#ifdef USE_MDI
40579 ripley 421 
    if (ismdi()) {
45070 ripley 422 
	int btsize = 24;
423 
	rect r = rect(2, 2, btsize, btsize);
424 
	control tb, bt;
425 
	addto(c);
426 
	MCHECK(tb = newtoolbar(btsize + 4));
9212 ripley 427 
	gsetcursor(tb, ArrowCursor);
45070 ripley 428 
	addto(tb);
429 
	MCHECK(bt = newtoolbutton(open_image, r, menueditoropen));
430 
	MCHECK(addtooltip(bt, G_("Open script")));
28991 murdoch 431 
	gsetcursor(bt, ArrowCursor);
35234 ripley 432 
	/* wants NULL as data, not the pager */
45070 ripley 433 
	r.x += (btsize + 6) ;
434 
	MCHECK(bt = newtoolbutton(copy1_image, r, pagerpaste));
435 
	MCHECK(addtooltip(bt, G_("Paste to console")));
9212 ripley 436 
	gsetcursor(bt, ArrowCursor);
45070 ripley 437 
	setdata(bt, (void *) c);
438 
	r.x += (btsize + 6) ;
439 
	MCHECK(bt = newtoolbutton(copy1_image, r, pagerpastecmds));
440 
	MCHECK(addtooltip(bt, G_("Paste commands to console")));
28544 murdoch 441 
	gsetcursor(bt, ArrowCursor);
45070 ripley 442 
	setdata(bt, (void *) c);
443 
	r.x += (btsize + 6) ;
444 
	MCHECK(bt = newtoolbutton(print_image, r, pagerprint));
445 
	MCHECK(addtooltip(bt, G_("Print")));
9212 ripley 446 
	gsetcursor(bt, ArrowCursor);
45070 ripley 447 
	setdata(bt, (void *) c);
448 
	r.x += (btsize + 6) ;
449 
	MCHECK(bt = newtoolbutton(console_image, r, pagerconsole));
450 
	MCHECK(addtooltip(bt, G_("Return focus to Console")));
9212 ripley 451 
	gsetcursor(bt, ArrowCursor);
45070 ripley 452 
	setdata(bt, (void *) c);
9212 ripley 453 
    }
454 
#endif
455 
    addto(c);
456 
    MCHECK(m = gpopup(pagermenuact, PagerPopup));
457 
    setdata(m, c);
458 
    setdata(p->mpopcopy = PagerPopup[0].m, c);
459 
    setdata(p->mpoppaste = PagerPopup[1].m, c);
28544 murdoch 460 
    setdata(p->mpoppastecmds = PagerPopup[2].m, c);
461 
    setdata(PagerPopup[3].m, c);
462 
    setdata(PagerPopup[5].m, c);
463 
    setdata(PagerPopup[7].m, c);
9212 ripley 464 
    MCHECK(m = newmenubar(pagermenuact));
465 
    setdata(m, c);
33001 ripley 466 
    MCHECK(newmenu(G_("File")));
467 
    MCHECK(m = newmenuitem(G_("New script"), 'N', menueditornew));
468 
    MCHECK(m = newmenuitem(G_("Open script..."), 'O', menueditoropen));
69561 murdoch 469 
    MCHECK(m = newmenuitem(G_("Print..."), 'P', pagerprint));
9212 ripley 470 
    setdata(m, c);
69561 murdoch 471 
    MCHECK(m = newmenuitem(G_("Save to File..."), 'S', pagersavefile));
10987 ripley 472 
    setdata(m, c);
9212 ripley 473 
    MCHECK(m = newmenuitem("-", 0, NULL));
33001 ripley 474 
    MCHECK(m = newmenuitem(G_("Close"), 0, pagerclose));
9212 ripley 475 
    setdata(m, c);
33001 ripley 476 
    MCHECK(newmenu(G_("Edit")));
477 
    MCHECK(p->mcopy = newmenuitem(G_("Copy"), 'C', pagercopy));
9212 ripley 478 
    setdata(p->mcopy, c);
33001 ripley 479 
    MCHECK(p->mpaste = newmenuitem(G_("Paste to console"), 'V', pagerpaste));
9212 ripley 480 
    setdata(p->mpaste, c);
33001 ripley 481 
    MCHECK(p->mpastecmds = newmenuitem(G_("Paste commands to console"), 0, pagerpastecmds));
28544 murdoch 482 
    setdata(p->mpastecmds, c);
33001 ripley 483 
    MCHECK(m = newmenuitem(G_("Select all"), 'A', pagerselectall));
9212 ripley 484 
    setdata(m, c);
485 
    if (!pagerMultiple) {
33001 ripley 486 
	MCHECK(newmenu(G_("View")));
9212 ripley 487 
	for (i = 0; i < PAGERMAXKEPT; i++) {
62583 ripley 488 
	    snprintf(pagerTitles[i], PAGERMAXTITLE+8, "&%c.  ", 'A' + i);
9212 ripley 489 
	    MCHECK(pagerMenus[i] = newmenuitem(&pagerTitles[i][1], 0,
490 
					       pagerchangeview));
491 
	    setvalue(pagerMenus[i], i);
492 
	}
493 
    }
494 
#ifdef USE_MDI
495 
    if (ismdi()) newmdimenu();
40579 ripley 496 
    if (ismdi() && !(RguiMDI & RW_TOOLBAR)) toolbar_hide();
9212 ripley 497 
#endif
498 
    MCHECK(BM = newbitmap(WIDTH, HEIGHT, 2));
499 
    setdata(c, p);
500 
    sethit(c, console_sbf);
501 
    setresize(c, consoleresize);
502 
    setredraw(c, drawconsole);
503 
    setdel(c, delpager);
504 
    setclose(c, pagerbclose);
505 
    setkeyaction(c, console_ctrlkeyin);
506 
    setkeydown(c, console_normalkeyin);
507 
    setmousedrag(c, console_mousedrag);
508 
    setmouserepeat(c, console_mouserep);
509 
    setmousedown(c, console_mousedown);
510 
    return(c);
511 
}
512 
 
45070 ripley 513 
static pager newpager1win(const char *wtitle,
44016 ripley 514 
			  const char *filename, int enc,
43767 ripley 515 
			  int deleteonexit)
9212 ripley 516 
{
517 
    if (!pagerInstance && !(pagerInstance = pagercreate())) {
45070 ripley 518 
	R_ShowMessage(G_("Unable to create pager window"));
519 
	return NULL;
9212 ripley 520 
    }
44016 ripley 521 
    if (!pageraddfile(wtitle, filename, enc, deleteonexit)) return NULL;
9212 ripley 522 
    pagerupdateview();
523 
    return pagerInstance;
524 
}
525 
 
45070 ripley 526 
static pager newpagerNwin(const char *wtitle,
44016 ripley 527 
			  const char *filename, int enc,
43767 ripley 528 
			  int deleteonexit)
9212 ripley 529 
{
530 
    pager c = pagercreate();
531 
    ConsoleData p;
532 
 
533 
    if (!c) return NULL;
534 
    settext(c, wtitle);
535 
    p = getdata(c);
44016 ripley 536 
    if (!(p->lbuf = file2xbuf(filename, enc, deleteonexit))) {
9212 ripley 537 
	del(c);
538 
	return NULL;
539 
    }
540 
    if (c) {
541 
	gchangescrollbar(c, VWINSB, 0, NUMLINES - 1 , ROWS, 0);
542 
	show(c);
543 
    }
544 
    return c;
545 
}
546 
 
45070 ripley 547 
pager newpager(const char *title,
44016 ripley 548 
	       const char *filename, int enc,
43767 ripley 549 
	       const char *header, int deleteonexit)
9212 ripley 550 
{
551 
    char wtitle[PAGERMAXTITLE+1];
552 
    pager c;
553 
 
554 
    /*    if (ismdi()) pagerMultiple = 1;*/
555 
    strncpy(wtitle, title, PAGERMAXTITLE);
556 
    wtitle[PAGERMAXTITLE] = '\0';
557 
    if(strlen(header) &&
558 
       ((strlen(header) + strlen(wtitle) + 4) < PAGERMAXTITLE)) {
559 
	if(strlen(wtitle)) strcat(wtitle, " - ");
560 
	strcat(wtitle, header);
561 
    }
562 
    if (!pagerMultiple)
45070 ripley 563 
	c = newpager1win(wtitle, filename, enc, deleteonexit);
9212 ripley 564 
    else
45070 ripley 565 
	c = newpagerNwin(wtitle, filename, enc, deleteonexit);
22614 ripley 566 
    if (c) {
567 
	haveusedapager++;
27357 murdoch 568 
	BringToTop(c, 0);
22614 ripley 569 
    }
9212 ripley 570 
    return c;
571 
}