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Update version number for 0.45 release
[u/mdw/putty] / window.c
CommitLineData
374330e2 1#include <windows.h>
2#include <commctrl.h>
3#include <winsock.h>
4#include <stdio.h>
5#include <stdlib.h>
6
7#define PUTTY_DO_GLOBALS /* actually _define_ globals */
8#include "putty.h"
9#include "win_res.h"
10
11#define IDM_SHOWLOG 501
12#define IDM_NEWSESS 502
13#define IDM_DUPSESS 503
14#define IDM_RECONF 504
15#define IDM_CLRSB 505
16#define IDM_RESET 506
17#define IDM_TEL_AYT 507
18#define IDM_TEL_BRK 508
19#define IDM_TEL_SYNCH 509
20#define IDM_TEL_EC 510
21#define IDM_TEL_EL 511
22#define IDM_TEL_GA 512
23#define IDM_TEL_NOP 513
24#define IDM_TEL_ABORT 514
25#define IDM_TEL_AO 515
26#define IDM_TEL_IP 516
27#define IDM_TEL_SUSP 517
28#define IDM_TEL_EOR 518
29#define IDM_TEL_EOF 519
30#define IDM_ABOUT 520
31
32#define WM_IGNORE_SIZE (WM_USER + 2)
33#define WM_IGNORE_CLIP (WM_USER + 3)
34
35static int WINAPI WndProc (HWND, UINT, WPARAM, LPARAM);
36static int TranslateKey(WPARAM wParam, LPARAM lParam, unsigned char *output);
37static void cfgtopalette(void);
38static void init_palette(void);
39static void init_fonts(void);
40
41static int extra_width, extra_height;
42
43#define FONT_NORMAL 0
44#define FONT_BOLD 1
45#define FONT_UNDERLINE 2
46#define FONT_BOLDUND 3
47#define FONT_OEM 4
48#define FONT_OEMBOLD 5
49#define FONT_OEMBOLDUND 6
50#define FONT_OEMUND 7
51static HFONT fonts[8];
52static enum {
53 BOLD_COLOURS, BOLD_SHADOW, BOLD_FONT
54} bold_mode;
55static enum {
56 UND_LINE, UND_FONT
57} und_mode;
58static int descent;
59
60#define NCOLOURS 24
61static COLORREF colours[NCOLOURS];
62static HPALETTE pal;
63static LPLOGPALETTE logpal;
64static RGBTRIPLE defpal[NCOLOURS];
65
66static HWND hwnd;
67
68static int dbltime, lasttime, lastact;
69static Mouse_Button lastbtn;
70
71static char *window_name, *icon_name;
72
73int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) {
74 static char appname[] = "PuTTY";
75 WORD winsock_ver;
76 WSADATA wsadata;
77 WNDCLASS wndclass;
78 MSG msg;
79 int guess_width, guess_height;
80
81 winsock_ver = MAKEWORD(1, 1);
82 if (WSAStartup(winsock_ver, &wsadata)) {
83 MessageBox(NULL, "Unable to initialise WinSock", "WinSock Error",
84 MB_OK | MB_ICONEXCLAMATION);
85 return 1;
86 }
87 if (LOBYTE(wsadata.wVersion) != 1 || HIBYTE(wsadata.wVersion) != 1) {
88 MessageBox(NULL, "WinSock version is incompatible with 1.1",
89 "WinSock Error", MB_OK | MB_ICONEXCLAMATION);
90 WSACleanup();
91 return 1;
92 }
93 /* WISHLIST: maybe allow config tweaking even if winsock not present? */
94
95 InitCommonControls();
96
97 /*
98 * Process the command line.
99 */
100 {
101 char *p;
102
103 do_defaults(NULL);
104
105 p = cmdline;
106 while (*p && isspace(*p)) p++;
107
108 /*
109 * An initial @ means to activate a saved session.
110 */
111 if (*p == '@') {
112 do_defaults (p+1);
113 if (!*cfg.host && !do_config()) {
114 WSACleanup();
115 return 0;
116 }
117 } else if (*p == '&') {
118 /*
119 * An initial & means we've been given a command line
120 * containing the hex value of a HANDLE for a file
121 * mapping object, which we must then extract as a
122 * config.
123 */
124 HANDLE filemap;
125 Config *cp;
126 if (sscanf(p+1, "%x", &filemap) == 1 &&
127 (cp = MapViewOfFile(filemap, FILE_MAP_READ,
128 0, 0, sizeof(Config))) != NULL) {
129 cfg = *cp;
130 UnmapViewOfFile(cp);
131 CloseHandle(filemap);
132 } else if (!do_config()) {
133 WSACleanup();
134 return 0;
135 }
136 } else if (*p) {
137 char *q = p;
138 while (*p && !isspace(*p)) p++;
139 if (*p)
140 *p++ = '\0';
141 strncpy (cfg.host, q, sizeof(cfg.host)-1);
142 cfg.host[sizeof(cfg.host)-1] = '\0';
143 while (*p && isspace(*p)) p++;
144 if (*p)
145 cfg.port = atoi(p);
146 else
147 cfg.port = -1;
148 } else {
149 if (!do_config()) {
150 WSACleanup();
151 return 0;
152 }
153 }
154 }
155
156 back = (cfg.protocol == PROT_SSH ? &ssh_backend : &telnet_backend);
157
158 if (!prev) {
159 wndclass.style = 0;
160 wndclass.lpfnWndProc = WndProc;
161 wndclass.cbClsExtra = 0;
162 wndclass.cbWndExtra = 0;
163 wndclass.hInstance = inst;
164 wndclass.hIcon = LoadIcon (inst,
165 MAKEINTRESOURCE(IDI_MAINICON));
166 wndclass.hCursor = LoadCursor (NULL, IDC_ARROW);
167 wndclass.hbrBackground = GetStockObject (BLACK_BRUSH);
168 wndclass.lpszMenuName = NULL;
169 wndclass.lpszClassName = appname;
170
171 RegisterClass (&wndclass);
172 }
173
174 hwnd = NULL;
175
176 savelines = cfg.savelines;
177 term_init();
178
179 cfgtopalette();
180
181 /*
182 * Guess some defaults for the window size. This all gets
183 * updated later, so we don't really care too much. However, we
184 * do want the font width/height guesses to correspond to a
185 * large font rather than a small one...
186 */
187
188 font_width = 10;
189 font_height = 20;
190 extra_width = 25;
191 extra_height = 28;
192 term_size (cfg.height, cfg.width, cfg.savelines);
193 guess_width = extra_width + font_width * cols;
194 guess_height = extra_height + font_height * rows;
195 {
196 RECT r;
197 HWND w = GetDesktopWindow();
198 GetWindowRect (w, &r);
199 if (guess_width > r.right - r.left)
200 guess_width = r.right - r.left;
201 if (guess_height > r.bottom - r.top)
202 guess_height = r.bottom - r.top;
203 }
204
205 hwnd = CreateWindow (appname, appname,
206 WS_OVERLAPPEDWINDOW | WS_VSCROLL,
207 CW_USEDEFAULT, CW_USEDEFAULT,
208 guess_width, guess_height,
209 NULL, NULL, inst, NULL);
210
211 /*
212 * Initialise the fonts, simultaneously correcting the guesses
213 * for font_{width,height}.
214 */
215 bold_mode = cfg.bold_colour ? BOLD_COLOURS : BOLD_FONT;
216 und_mode = UND_FONT;
217 init_fonts();
218
219 /*
220 * Correct the guesses for extra_{width,height}.
221 */
222 {
223 RECT cr, wr;
224 GetWindowRect (hwnd, &wr);
225 GetClientRect (hwnd, &cr);
226 extra_width = wr.right - wr.left - cr.right + cr.left;
227 extra_height = wr.bottom - wr.top - cr.bottom + cr.top;
228 }
229
230 /*
231 * Resize the window, now we know what size we _really_ want it
232 * to be.
233 */
234 guess_width = extra_width + font_width * cols;
235 guess_height = extra_height + font_height * rows;
236 SendMessage (hwnd, WM_IGNORE_SIZE, 0, 0);
237 SetWindowPos (hwnd, NULL, 0, 0, guess_width, guess_height,
238 SWP_NOMOVE | SWP_NOREDRAW | SWP_NOZORDER);
239
240 /*
241 * Initialise the scroll bar.
242 */
243 {
244 SCROLLINFO si;
245
246 si.cbSize = sizeof(si);
247 si.fMask = SIF_RANGE | SIF_PAGE | SIF_POS | SIF_DISABLENOSCROLL;
248 si.nMin = 0;
249 si.nMax = rows-1;
250 si.nPage = rows;
251 si.nPos = 0;
252 SetScrollInfo (hwnd, SB_VERT, &si, FALSE);
253 }
254
255 /*
256 * Start up the telnet connection.
257 */
258 {
259 char *error;
260 char msg[1024];
261 char *realhost;
262
263 error = back->init (hwnd, cfg.host, cfg.port, &realhost);
264 if (error) {
265 sprintf(msg, "Unable to open connection:\n%s", error);
266 MessageBox(NULL, msg, "PuTTY Error", MB_ICONERROR | MB_OK);
267 return 0;
268 }
269 window_name = icon_name = NULL;
270 sprintf(msg, "PuTTY: %s", realhost);
271 set_title (msg);
272 set_icon (msg);
273 }
274
275 /*
276 * Set up the input and output buffers.
277 */
278 inbuf_reap = inbuf_head = 0;
279 outbuf_reap = outbuf_head = 0;
280
281 /*
282 * Prepare the mouse handler.
283 */
284 lastact = MA_NOTHING;
285 lastbtn = MB_NOTHING;
286 dbltime = GetDoubleClickTime();
287
288 /*
289 * Set up the session-control options on the system menu.
290 */
291 {
292 HMENU m = GetSystemMenu (hwnd, FALSE);
293 HMENU p;
294
295 AppendMenu (m, MF_SEPARATOR, 0, 0);
296 if (cfg.protocol == PROT_TELNET) {
297 p = CreateMenu();
298 AppendMenu (p, MF_ENABLED, IDM_TEL_AYT, "Are You There");
299 AppendMenu (p, MF_ENABLED, IDM_TEL_BRK, "Break");
300 AppendMenu (p, MF_ENABLED, IDM_TEL_SYNCH, "Synch");
301 AppendMenu (p, MF_SEPARATOR, 0, 0);
302 AppendMenu (p, MF_ENABLED, IDM_TEL_EC, "Erase Character");
303 AppendMenu (p, MF_ENABLED, IDM_TEL_EL, "Erase Line");
304 AppendMenu (p, MF_ENABLED, IDM_TEL_GA, "Go Ahead");
305 AppendMenu (p, MF_ENABLED, IDM_TEL_NOP, "No Operation");
306 AppendMenu (p, MF_SEPARATOR, 0, 0);
307 AppendMenu (p, MF_ENABLED, IDM_TEL_ABORT, "Abort Process");
308 AppendMenu (p, MF_ENABLED, IDM_TEL_AO, "Abort Output");
309 AppendMenu (p, MF_ENABLED, IDM_TEL_IP, "Interrupt Process");
310 AppendMenu (p, MF_ENABLED, IDM_TEL_SUSP, "Suspend Process");
311 AppendMenu (p, MF_SEPARATOR, 0, 0);
312 AppendMenu (p, MF_ENABLED, IDM_TEL_EOR, "End Of Record");
313 AppendMenu (p, MF_ENABLED, IDM_TEL_EOF, "End Of File");
314 AppendMenu (m, MF_POPUP | MF_ENABLED, (UINT) p, "Telnet Command");
315 AppendMenu (m, MF_ENABLED, IDM_SHOWLOG, "Show Negotiation");
316 AppendMenu (m, MF_SEPARATOR, 0, 0);
317 }
318 AppendMenu (m, MF_ENABLED, IDM_NEWSESS, "New Session");
319 AppendMenu (m, MF_ENABLED, IDM_DUPSESS, "Duplicate Session");
320 AppendMenu (m, MF_ENABLED, IDM_RECONF, "Change Settings");
321 AppendMenu (m, MF_SEPARATOR, 0, 0);
322 AppendMenu (m, MF_ENABLED, IDM_CLRSB, "Clear Scrollback");
323 AppendMenu (m, MF_ENABLED, IDM_RESET, "Reset Terminal");
324 AppendMenu (m, MF_SEPARATOR, 0, 0);
325 AppendMenu (m, MF_ENABLED, IDM_ABOUT, "About PuTTY");
326 }
327
328 /*
329 * Finally show the window!
330 */
331 ShowWindow (hwnd, show);
332
333 /*
334 * Set the palette up.
335 */
336 pal = NULL;
337 logpal = NULL;
338 init_palette();
339
340 has_focus = (GetForegroundWindow() == hwnd);
341 UpdateWindow (hwnd);
342
343 while (GetMessage (&msg, NULL, 0, 0)) {
344 DispatchMessage (&msg);
345 if (inbuf_reap != inbuf_head)
346 term_out();
347 /* In idle moments, do a full screen update */
348 if (!PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE))
349 term_update();
350 }
351
352 /*
353 * Clean up.
354 */
355 {
356 int i;
357 for (i=0; i<8; i++)
358 if (fonts[i])
359 DeleteObject(fonts[i]);
360 }
361 sfree(logpal);
362 if (pal)
363 DeleteObject(pal);
364 WSACleanup();
365
366 if (cfg.protocol == PROT_SSH)
367 random_save_seed();
368
369 return msg.wParam;
370}
371
372/*
373 * Copy the colour palette from the configuration data into defpal.
374 * This is non-trivial because the colour indices are different.
375 */
376static void cfgtopalette(void) {
377 int i;
378 static const int ww[] = {
379 6, 7, 8, 9, 10, 11, 12, 13,
380 14, 15, 16, 17, 18, 19, 20, 21,
381 0, 1, 2, 3, 4, 4, 5, 5
382 };
383
384 for (i=0; i<24; i++) {
385 int w = ww[i];
386 defpal[i].rgbtRed = cfg.colours[w][0];
387 defpal[i].rgbtGreen = cfg.colours[w][1];
388 defpal[i].rgbtBlue = cfg.colours[w][2];
389 }
390}
391
392/*
393 * Set up the colour palette.
394 */
395static void init_palette(void) {
396 int i;
397 HDC hdc = GetDC (hwnd);
398 if (hdc) {
399 if (cfg.try_palette &&
400 GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE) {
401 logpal = smalloc(sizeof(*logpal)
402 - sizeof(logpal->palPalEntry)
403 + NCOLOURS * sizeof(PALETTEENTRY));
404 logpal->palVersion = 0x300;
405 logpal->palNumEntries = NCOLOURS;
406 for (i = 0; i < NCOLOURS; i++) {
407 logpal->palPalEntry[i].peRed = defpal[i].rgbtRed;
408 logpal->palPalEntry[i].peGreen = defpal[i].rgbtGreen;
409 logpal->palPalEntry[i].peBlue = defpal[i].rgbtBlue;
410 logpal->palPalEntry[i].peFlags = PC_NOCOLLAPSE;
411 }
412 pal = CreatePalette (logpal);
413 if (pal) {
414 SelectPalette (hdc, pal, FALSE);
415 RealizePalette (hdc);
416 SelectPalette (hdc, GetStockObject (DEFAULT_PALETTE),
417 FALSE);
418 }
419 }
420 ReleaseDC (hwnd, hdc);
421 }
422 if (pal)
423 for (i=0; i<NCOLOURS; i++)
424 colours[i] = PALETTERGB(defpal[i].rgbtRed,
425 defpal[i].rgbtGreen,
426 defpal[i].rgbtBlue);
427 else
428 for(i=0; i<NCOLOURS; i++)
429 colours[i] = RGB(defpal[i].rgbtRed,
430 defpal[i].rgbtGreen,
431 defpal[i].rgbtBlue);
432}
433
434/*
435 * Initialise all the fonts we will need. There may be as many as
436 * eight or as few as one. We also:
437 *
438 * - check the font width and height, correcting our guesses if
439 * necessary.
440 *
441 * - verify that the bold font is the same width as the ordinary
442 * one, and engage shadow bolding if not.
443 *
444 * - verify that the underlined font is the same width as the
445 * ordinary one (manual underlining by means of line drawing can
446 * be done in a pinch).
447 *
448 * - verify, in OEM/ANSI combined mode, that the OEM and ANSI base
449 * fonts are the same size, and shift to OEM-only mode if not.
450 */
451static void init_fonts(void) {
452 TEXTMETRIC tm;
453 int i, j;
454 int widths[5];
455 HDC hdc;
456 int fw_dontcare, fw_bold;
457
458 for (i=0; i<8; i++)
459 fonts[i] = NULL;
460
461 if (cfg.fontisbold) {
462 fw_dontcare = FW_BOLD;
463 fw_bold = FW_BLACK;
464 } else {
465 fw_dontcare = FW_DONTCARE;
466 fw_bold = FW_BOLD;
467 }
468
469#define f(i,c,w,u) \
470 fonts[i] = CreateFont (cfg.fontheight, 0, 0, 0, w, FALSE, u, FALSE, \
471 c, OUT_DEFAULT_PRECIS, \
472 CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, \
473 FIXED_PITCH | FF_DONTCARE, cfg.font)
474 if (cfg.vtmode != VT_OEMONLY) {
475 f(FONT_NORMAL, ANSI_CHARSET, fw_dontcare, FALSE);
476 f(FONT_UNDERLINE, ANSI_CHARSET, fw_dontcare, TRUE);
477 }
478 if (cfg.vtmode == VT_OEMANSI || cfg.vtmode == VT_OEMONLY) {
479 f(FONT_OEM, OEM_CHARSET, fw_dontcare, FALSE);
480 f(FONT_OEMUND, OEM_CHARSET, fw_dontcare, TRUE);
481 }
482 if (bold_mode == BOLD_FONT) {
483 if (cfg.vtmode != VT_OEMONLY) {
484 f(FONT_BOLD, ANSI_CHARSET, fw_bold, FALSE);
485 f(FONT_BOLDUND, ANSI_CHARSET, fw_bold, TRUE);
486 }
487 if (cfg.vtmode == VT_OEMANSI || cfg.vtmode == VT_OEMONLY) {
488 f(FONT_OEMBOLD, OEM_CHARSET, fw_bold, FALSE);
489 f(FONT_OEMBOLDUND, OEM_CHARSET, fw_bold, TRUE);
490 }
491 } else {
492 fonts[FONT_BOLD] = fonts[FONT_BOLDUND] = NULL;
493 fonts[FONT_OEMBOLD] = fonts[FONT_OEMBOLDUND] = NULL;
494 }
495#undef f
496
497 hdc = GetDC(hwnd);
498
499 if (cfg.vtmode == VT_OEMONLY)
500 j = 4;
501 else
502 j = 0;
503
504 for (i=0; i<(cfg.vtmode == VT_OEMANSI ? 5 : 4); i++) {
505 if (fonts[i+j]) {
506 SelectObject (hdc, fonts[i+j]);
507 GetTextMetrics(hdc, &tm);
508 if (i == 0 || i == 4) {
509 font_height = tm.tmHeight;
510 font_width = tm.tmAveCharWidth;
511 descent = tm.tmAscent + 1;
512 if (descent >= font_height)
513 descent = font_height - 1;
514 }
515 widths[i] = tm.tmAveCharWidth;
516 }
517 }
518
519 ReleaseDC (hwnd, hdc);
520
521 if (widths[FONT_UNDERLINE] != widths[FONT_NORMAL] ||
522 (bold_mode == BOLD_FONT &&
523 widths[FONT_BOLDUND] != widths[FONT_BOLD])) {
524 und_mode = UND_LINE;
525 DeleteObject (fonts[FONT_UNDERLINE]);
526 if (bold_mode == BOLD_FONT)
527 DeleteObject (fonts[FONT_BOLDUND]);
528 }
529
530 if (bold_mode == BOLD_FONT &&
531 widths[FONT_BOLD] != widths[FONT_NORMAL]) {
532 bold_mode = BOLD_SHADOW;
533 DeleteObject (fonts[FONT_BOLD]);
534 if (und_mode == UND_FONT)
535 DeleteObject (fonts[FONT_BOLDUND]);
536 }
537
538 if (cfg.vtmode == VT_OEMANSI && widths[FONT_OEM] != widths[FONT_NORMAL]) {
539 MessageBox(NULL, "The OEM and ANSI versions of this font are\n"
540 "different sizes. Using OEM-only mode instead",
541 "Font Size Mismatch", MB_ICONINFORMATION | MB_OK);
542 cfg.vtmode = VT_OEMONLY;
543 for (i=0; i<4; i++)
544 if (fonts[i])
545 DeleteObject (fonts[i]);
546 }
547}
548
549void request_resize (int w, int h) {
550 int width = extra_width + font_width * w;
551 int height = extra_height + font_height * h;
552
553 SetWindowPos (hwnd, NULL, 0, 0, width, height,
554 SWP_NOACTIVATE | SWP_NOCOPYBITS |
555 SWP_NOMOVE | SWP_NOZORDER);
556}
557
558static void click (Mouse_Button b, int x, int y) {
559 if (lastbtn == b && GetMessageTime() - lasttime < dbltime) {
560 lastact = (lastact == MA_CLICK ? MA_2CLK :
561 lastact == MA_2CLK ? MA_3CLK :
562 lastact == MA_3CLK ? MA_CLICK : MA_NOTHING);
563 } else {
564 lastbtn = b;
565 lastact = MA_CLICK;
566 }
567 if (lastact != MA_NOTHING)
568 term_mouse (b, lastact, x, y);
569 lasttime = GetMessageTime();
570}
571
572static int WINAPI WndProc (HWND hwnd, UINT message,
573 WPARAM wParam, LPARAM lParam) {
574 HDC hdc;
575 static int ignore_size = FALSE;
576 static int ignore_clip = FALSE;
577 static int just_reconfigged = FALSE;
578
579 switch (message) {
580 case WM_CREATE:
581 break;
582 case WM_DESTROY:
583 PostQuitMessage (0);
584 return 0;
585 case WM_SYSCOMMAND:
586 switch (wParam) {
587 case IDM_SHOWLOG:
588 shownegot(hwnd);
589 break;
590 case IDM_NEWSESS:
591 case IDM_DUPSESS:
592 {
593 char b[2048];
594 char c[30], *cl;
595 STARTUPINFO si;
596 PROCESS_INFORMATION pi;
597 HANDLE filemap = NULL;
598
599 if (wParam == IDM_DUPSESS) {
600 /*
601 * Allocate a file-mapping memory chunk for the
602 * config structure.
603 */
604 SECURITY_ATTRIBUTES sa;
605 Config *p;
606
607 sa.nLength = sizeof(sa);
608 sa.lpSecurityDescriptor = NULL;
609 sa.bInheritHandle = TRUE;
610 filemap = CreateFileMapping((HANDLE)0xFFFFFFFF,
611 &sa,
612 PAGE_READWRITE,
613 0,
614 sizeof(Config),
615 NULL);
616 if (filemap) {
617 p = (Config *)MapViewOfFile(filemap,
618 FILE_MAP_WRITE,
619 0, 0, sizeof(Config));
620 if (p) {
621 *p = cfg; /* structure copy */
622 UnmapViewOfFile(p);
623 }
624 }
625 sprintf(c, "putty &%08x", filemap);
626 cl = c;
627 } else
628 cl = NULL;
629
630 GetModuleFileName (NULL, b, sizeof(b)-1);
631 si.cb = sizeof(si);
632 si.lpReserved = NULL;
633 si.lpDesktop = NULL;
634 si.lpTitle = NULL;
635 si.dwFlags = 0;
636 si.cbReserved2 = 0;
637 si.lpReserved2 = NULL;
638 CreateProcess (b, cl, NULL, NULL, TRUE,
639 NORMAL_PRIORITY_CLASS, NULL, NULL, &si, &pi);
640
641 if (filemap)
642 CloseHandle(filemap);
643 }
644 break;
645 case IDM_RECONF:
646 if (!do_reconfig(hwnd))
647 break;
648 just_reconfigged = TRUE;
649 {
650 int i;
651 for (i=0; i<8; i++)
652 if (fonts[i])
653 DeleteObject(fonts[i]);
654 }
655 bold_mode = cfg.bold_colour ? BOLD_COLOURS : BOLD_FONT;
656 und_mode = UND_FONT;
657 init_fonts();
658 sfree(logpal);
659 if (pal)
660 DeleteObject(pal);
661 logpal = NULL;
662 pal = NULL;
663 cfgtopalette();
664 init_palette();
665 term_size(cfg.height, cfg.width, cfg.savelines);
666 InvalidateRect(hwnd, NULL, TRUE);
667 SetWindowPos (hwnd, NULL, 0, 0,
668 extra_width + font_width * cfg.width,
669 extra_height + font_height * cfg.height,
670 SWP_NOACTIVATE | SWP_NOCOPYBITS |
671 SWP_NOMOVE | SWP_NOZORDER);
672 if (IsIconic(hwnd)) {
673 SetWindowText (hwnd,
674 cfg.win_name_always ? window_name : icon_name);
675 }
676 break;
677 case IDM_CLRSB:
678 term_clrsb();
679 break;
680 case IDM_RESET:
681 term_pwron();
682 break;
683 case IDM_TEL_AYT: back->special (TS_AYT); break;
684 case IDM_TEL_BRK: back->special (TS_BRK); break;
685 case IDM_TEL_SYNCH: back->special (TS_SYNCH); break;
686 case IDM_TEL_EC: back->special (TS_EC); break;
687 case IDM_TEL_EL: back->special (TS_EL); break;
688 case IDM_TEL_GA: back->special (TS_GA); break;
689 case IDM_TEL_NOP: back->special (TS_NOP); break;
690 case IDM_TEL_ABORT: back->special (TS_ABORT); break;
691 case IDM_TEL_AO: back->special (TS_AO); break;
692 case IDM_TEL_IP: back->special (TS_IP); break;
693 case IDM_TEL_SUSP: back->special (TS_SUSP); break;
694 case IDM_TEL_EOR: back->special (TS_EOR); break;
695 case IDM_TEL_EOF: back->special (TS_EOF); break;
696 case IDM_ABOUT:
697 showabout (hwnd);
698 break;
699 }
700 break;
37508af4 701
702#define X_POS(l) ((int)(short)LOWORD(l))
703#define Y_POS(l) ((int)(short)HIWORD(l))
704
374330e2 705 case WM_LBUTTONDOWN:
37508af4 706 click (MB_SELECT, X_POS(lParam) / font_width,
707 Y_POS(lParam) / font_height);
fef97f43 708 SetCapture(hwnd);
374330e2 709 return 0;
710 case WM_LBUTTONUP:
37508af4 711 term_mouse (MB_SELECT, MA_RELEASE, X_POS(lParam) / font_width,
712 Y_POS(lParam) / font_height);
713 ReleaseCapture();
374330e2 714 return 0;
715 case WM_MBUTTONDOWN:
37508af4 716 SetCapture(hwnd);
374330e2 717 click (cfg.mouse_is_xterm ? MB_PASTE : MB_EXTEND,
37508af4 718 X_POS(lParam) / font_width,
719 Y_POS(lParam) / font_height);
374330e2 720 return 0;
721 case WM_MBUTTONUP:
722 term_mouse (cfg.mouse_is_xterm ? MB_PASTE : MB_EXTEND,
37508af4 723 MA_RELEASE, X_POS(lParam) / font_width,
724 Y_POS(lParam) / font_height);
374330e2 725 return 0;
37508af4 726 ReleaseCapture();
374330e2 727 case WM_RBUTTONDOWN:
37508af4 728 SetCapture(hwnd);
374330e2 729 click (cfg.mouse_is_xterm ? MB_EXTEND : MB_PASTE,
37508af4 730 X_POS(lParam) / font_width,
731 Y_POS(lParam) / font_height);
374330e2 732 return 0;
733 case WM_RBUTTONUP:
734 term_mouse (cfg.mouse_is_xterm ? MB_EXTEND : MB_PASTE,
37508af4 735 MA_RELEASE, X_POS(lParam) / font_width,
736 Y_POS(lParam) / font_height);
737 ReleaseCapture();
374330e2 738 return 0;
739 case WM_MOUSEMOVE:
740 /*
741 * Add the mouse position and message time to the random
742 * number noise, if we're using ssh.
743 */
744 if (cfg.protocol == PROT_SSH)
745 noise_ultralight(lParam);
746
747 if (wParam & (MK_LBUTTON | MK_MBUTTON | MK_RBUTTON)) {
748 Mouse_Button b;
749 if (wParam & MK_LBUTTON)
750 b = MB_SELECT;
751 else if (wParam & MK_MBUTTON)
752 b = cfg.mouse_is_xterm ? MB_PASTE : MB_EXTEND;
753 else
754 b = cfg.mouse_is_xterm ? MB_EXTEND : MB_PASTE;
37508af4 755 term_mouse (b, MA_DRAG, X_POS(lParam) / font_width,
756 Y_POS(lParam) / font_height);
374330e2 757 }
758 lastbtn = MB_NOTHING;
759 lastact = MA_NOTHING;
760 lasttime = GetMessageTime();
761 return 0;
762 case WM_IGNORE_CLIP:
763 ignore_clip = wParam; /* don't panic on DESTROYCLIPBOARD */
764 break;
765 case WM_DESTROYCLIPBOARD:
766 if (!ignore_clip)
767 term_deselect();
768 ignore_clip = FALSE;
769 return 0;
770 case WM_PAINT:
771 {
772 PAINTSTRUCT p;
773 hdc = BeginPaint (hwnd, &p);
774 if (pal) {
775 SelectPalette (hdc, pal, TRUE);
776 RealizePalette (hdc);
777 }
778 term_paint (hdc, p.rcPaint.left, p.rcPaint.top,
779 p.rcPaint.right, p.rcPaint.bottom);
780 SelectObject (hdc, GetStockObject(SYSTEM_FONT));
781 SelectObject (hdc, GetStockObject(WHITE_PEN));
782 EndPaint (hwnd, &p);
783 }
784 return 0;
785 case WM_NETEVENT:
786 {
787 int i = back->msg (wParam, lParam);
788 if (i < 0) {
789 char buf[1024];
790 switch (WSABASEERR + (-i) % 10000) {
791 case WSAECONNRESET:
792 sprintf(buf, "Connection reset by peer");
793 break;
794 default:
795 sprintf(buf, "Unexpected network error %d", -i);
796 break;
797 }
798 MessageBox(hwnd, buf, "PuTTY Fatal Error",
799 MB_ICONERROR | MB_OK);
800 PostQuitMessage(1);
801 } else if (i == 0) {
802 if (cfg.close_on_exit)
803 PostQuitMessage(0);
804 else {
805 MessageBox(hwnd, "Connection closed by remote host",
806 "PuTTY", MB_OK | MB_ICONINFORMATION);
807 SetWindowText (hwnd, "PuTTY (inactive)");
808 }
809 }
810 }
811 return 0;
812 case WM_SETFOCUS:
813 has_focus = TRUE;
814 term_out();
815 term_update();
816 break;
817 case WM_KILLFOCUS:
818 has_focus = FALSE;
819 term_out();
820 term_update();
821 break;
822 case WM_IGNORE_SIZE:
823 ignore_size = TRUE; /* don't panic on next WM_SIZE msg */
824 break;
825 case WM_SIZING:
826 {
827 int width, height, w, h, ew, eh;
828 LPRECT r = (LPRECT)lParam;
829
830 width = r->right - r->left - extra_width;
831 height = r->bottom - r->top - extra_height;
832 w = (width + font_width/2) / font_width; if (w < 1) w = 1;
833 h = (height + font_height/2) / font_height; if (h < 1) h = 1;
834 ew = width - w * font_width;
835 eh = height - h * font_height;
836 if (ew != 0) {
837 if (wParam == WMSZ_LEFT ||
838 wParam == WMSZ_BOTTOMLEFT ||
839 wParam == WMSZ_TOPLEFT)
840 r->left += ew;
841 else
842 r->right -= ew;
843 }
844 if (eh != 0) {
845 if (wParam == WMSZ_TOP ||
846 wParam == WMSZ_TOPRIGHT ||
847 wParam == WMSZ_TOPLEFT)
848 r->top += eh;
849 else
850 r->bottom -= eh;
851 }
852 if (ew || eh)
853 return 1;
854 else
855 return 0;
856 }
857 break;
858 case WM_SIZE:
859 if (wParam == SIZE_MINIMIZED) {
860 SetWindowText (hwnd,
861 cfg.win_name_always ? window_name : icon_name);
862 break;
863 }
864 if (wParam == SIZE_RESTORED || wParam == SIZE_MAXIMIZED)
865 SetWindowText (hwnd, window_name);
866 if (!ignore_size) {
867 int width, height, w, h, ew, eh;
868
869 width = LOWORD(lParam);
870 height = HIWORD(lParam);
871 w = width / font_width; if (w < 1) w = 1;
872 h = height / font_height; if (h < 1) h = 1;
873#if 0 /* we have fixed this using WM_SIZING now */
874 ew = width - w * font_width;
875 eh = height - h * font_height;
876 if (ew != 0 || eh != 0) {
877 RECT r;
878 GetWindowRect (hwnd, &r);
879 SendMessage (hwnd, WM_IGNORE_SIZE, 0, 0);
880 SetWindowPos (hwnd, NULL, 0, 0,
881 r.right - r.left - ew, r.bottom - r.top - eh,
882 SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER);
883 }
884#endif
885 if (w != cols || h != rows || just_reconfigged) {
886 term_invalidate();
887 term_size (h, w, cfg.savelines);
888 back->size();
889 just_reconfigged = FALSE;
890 }
891 }
892 ignore_size = FALSE;
893 return 0;
894 case WM_VSCROLL:
895 switch (LOWORD(wParam)) {
896 case SB_BOTTOM: term_scroll(-1, 0); break;
897 case SB_TOP: term_scroll(+1, 0); break;
898 case SB_LINEDOWN: term_scroll (0, +1); break;
899 case SB_LINEUP: term_scroll (0, -1); break;
900 case SB_PAGEDOWN: term_scroll (0, +rows/2); break;
901 case SB_PAGEUP: term_scroll (0, -rows/2); break;
902 case SB_THUMBPOSITION: case SB_THUMBTRACK:
903 term_scroll (1, HIWORD(wParam)); break;
904 }
905 break;
906 case WM_PALETTECHANGED:
907 if ((HWND) wParam != hwnd && pal != NULL) {
908 HDC hdc = get_ctx();
909 if (hdc) {
910 if (RealizePalette (hdc) > 0)
911 UpdateColors (hdc);
912 free_ctx (hdc);
913 }
914 }
915 break;
916 case WM_QUERYNEWPALETTE:
917 if (pal != NULL) {
918 HDC hdc = get_ctx();
919 if (hdc) {
920 if (RealizePalette (hdc) > 0)
921 UpdateColors (hdc);
922 free_ctx (hdc);
923 return TRUE;
924 }
925 }
926 return FALSE;
927 case WM_KEYDOWN:
928 case WM_SYSKEYDOWN:
929 /*
930 * Add the scan code and keypress timing to the random
931 * number noise, if we're using ssh.
932 */
933 if (cfg.protocol == PROT_SSH)
934 noise_ultralight(lParam);
935
936 /*
937 * We don't do TranslateMessage since it disassociates the
938 * resulting CHAR message from the KEYDOWN that sparked it,
939 * which we occasionally don't want. Instead, we process
940 * KEYDOWN, and call the Win32 translator functions so that
941 * we get the translations under _our_ control.
942 */
943 {
944 unsigned char buf[20];
945 int len;
946
947 len = TranslateKey (wParam, lParam, buf);
948 back->send (buf, len);
949 }
950 return 0;
951 case WM_CHAR:
952 case WM_SYSCHAR:
953 /*
954 * Nevertheless, we are prepared to deal with WM_CHAR
955 * messages, should they crop up. So if someone wants to
956 * post the things to us as part of a macro manoeuvre,
957 * we're ready to cope.
958 */
959 {
960 char c = wParam;
961 back->send (&c, 1);
962 }
963 return 0;
964 }
965
966 return DefWindowProc (hwnd, message, wParam, lParam);
967}
968
969/*
970 * Draw a line of text in the window, at given character
971 * coordinates, in given attributes.
972 *
973 * We are allowed to fiddle with the contents of `text'.
974 */
975void do_text (Context ctx, int x, int y, char *text, int len,
976 unsigned long attr) {
977 COLORREF fg, bg, t;
978 int nfg, nbg, nfont;
979 HDC hdc = ctx;
980
981 x *= font_width;
982 y *= font_height;
983
984 if (attr & ATTR_ACTCURS) {
985 attr &= (bold_mode == BOLD_COLOURS ? 0x200 : 0x300);
986 attr ^= ATTR_CUR_XOR;
987 }
988
989 nfont = 0;
990 if (cfg.vtmode == VT_OEMONLY)
991 nfont |= FONT_OEM;
992
993 /*
994 * Map high-half characters in order to approximate ISO using
995 * OEM character set. Characters missing are 0xC3 (Atilde) and
996 * 0xCC (Igrave).
997 */
998 if (nfont & FONT_OEM) {
999 int i;
1000 for (i=0; i<len; i++)
1001 if (text[i] >= '\xA0' && text[i] <= '\xFF') {
1002 static const char oemhighhalf[] =
1003 "\x20\xAD\xBD\x9C\xCF\xBE\xDD\xF5" /* A0-A7 */
1004 "\xF9\xB8\xA6\xAE\xAA\xF0\xA9\xEE" /* A8-AF */
1005 "\xF8\xF1\xFD\xFC\xEF\xE6\xF4\xFA" /* B0-B7 */
1006 "\xF7\xFB\xA7\xAF\xAC\xAB\xF3\xA8" /* B8-BF */
1007 "\xB7\xB5\xB6\x41\x8E\x8F\x92\x80" /* C0-C7 */
1008 "\xD4\x90\xD2\xD3\x49\xD6\xD7\xD8" /* C8-CF */
1009 "\xD1\xA5\xE3\xE0\xE2\xE5\x99\x9E" /* D0-D7 */
1010 "\x9D\xEB\xE9\xEA\x9A\xED\xE8\xE1" /* D8-DF */
1011 "\x85\xA0\x83\xC6\x84\x86\x91\x87" /* E0-E7 */
1012 "\x8A\x82\x88\x89\x8D\xA1\x8C\x8B" /* E8-EF */
1013 "\xD0\xA4\x95\xA2\x93\xE4\x94\xF6" /* F0-F7 */
1014 "\x9B\x97\xA3\x96\x81\xEC\xE7\x98" /* F8-FF */
1015 ;
1016 text[i] = oemhighhalf[(unsigned char)text[i] - 0xA0];
1017 }
1018 }
1019
1020 if (attr & ATTR_GBCHR) {
1021 int i;
1022 /*
1023 * GB mapping: map # to pound, and everything else stays
1024 * normal.
1025 */
1026 for (i=0; i<len; i++)
1027 if (text[i] == '#')
1028 text[i] = cfg.vtmode == VT_OEMONLY ? '\x9C' : '\xA3';
1029 } else if (attr & ATTR_LINEDRW) {
1030 int i;
1031 static const char poorman[] =
1032 "*#****\xB0\xB1**+++++-----++++|****\xA3\xB7";
1033 static const char oemmap[] =
1034 "*\xB1****\xF8\xF1**\xD9\xBF\xDA\xC0\xC5"
1035 "\xC4\xC4\xC4\xC4\xC4\xC3\xB4\xC1\xC2\xB3****\x9C\xFA";
1036
1037 /*
1038 * Line drawing mapping: map ` thru ~ (0x60 thru 0x7E) to
1039 * VT100 line drawing chars; everything else stays normal.
1040 */
1041 switch (cfg.vtmode) {
1042 case VT_XWINDOWS:
1043 for (i=0; i<len; i++)
1044 if (text[i] >= '\x60' && text[i] <= '\x7E')
1045 text[i] += '\x01' - '\x60';
1046 break;
1047 case VT_OEMANSI:
1048 case VT_OEMONLY:
1049 nfont |= FONT_OEM;
1050 for (i=0; i<len; i++)
1051 if (text[i] >= '\x60' && text[i] <= '\x7E')
1052 text[i] = oemmap[(unsigned char)text[i] - 0x60];
1053 break;
1054 case VT_POORMAN:
1055 for (i=0; i<len; i++)
1056 if (text[i] >= '\x60' && text[i] <= '\x7E')
1057 text[i] = poorman[(unsigned char)text[i] - 0x60];
1058 break;
1059 }
1060 }
1061
1062 nfg = 2 * ((attr & ATTR_FGMASK) >> ATTR_FGSHIFT);
1063 nbg = 2 * ((attr & ATTR_BGMASK) >> ATTR_BGSHIFT);
1064 if (bold_mode == BOLD_FONT && (attr & ATTR_BOLD))
1065 nfont |= FONT_BOLD;
1066 if (und_mode == UND_FONT && (attr & ATTR_UNDER))
1067 nfont |= FONT_UNDERLINE;
1068 if (attr & ATTR_REVERSE) {
1069 t = nfg; nfg = nbg; nbg = t;
1070 }
1071 if (bold_mode == BOLD_COLOURS && (attr & ATTR_BOLD))
1072 nfg++;
1073 fg = colours[nfg];
1074 bg = colours[nbg];
1075 SelectObject (hdc, fonts[nfont]);
1076 SetTextColor (hdc, fg);
1077 SetBkColor (hdc, bg);
1078 SetBkMode (hdc, OPAQUE);
1079 TextOut (hdc, x, y, text, len);
1080 if (bold_mode == BOLD_SHADOW && (attr & ATTR_BOLD)) {
1081 SetBkMode (hdc, TRANSPARENT);
1082 TextOut (hdc, x-1, y, text, len);
1083 }
1084 if (und_mode == UND_LINE && (attr & ATTR_UNDER)) {
1085 SelectObject (hdc, CreatePen(PS_SOLID, 0, fg));
1086 MoveToEx (hdc, x, y+descent, NULL);
1087 LineTo (hdc, x+len*font_width, y+descent);
1088 }
1089 if (attr & ATTR_PASCURS) {
1090 POINT pts[5];
1091 pts[0].x = pts[1].x = pts[4].x = x;
1092 pts[2].x = pts[3].x = x+font_width-1;
1093 pts[0].y = pts[3].y = pts[4].y = y;
1094 pts[1].y = pts[2].y = y+font_height-1;
1095 SelectObject (hdc, CreatePen(PS_SOLID, 0, colours[23]));
1096 Polyline (hdc, pts, 5);
1097 }
1098}
1099
1100/*
1101 * Translate a WM_(SYS)?KEYDOWN message into a string of ASCII
1102 * codes. Returns number of bytes used.
1103 */
1104static int TranslateKey(WPARAM wParam, LPARAM lParam, unsigned char *output) {
1105 unsigned char *p = output;
1106 BYTE keystate[256];
1107 int ret, code;
1108
1109 /*
1110 * Prepend ESC if ALT was pressed at the time.
1111 */
1112 if (lParam & 0x20000000)
1113 *p++ = 0x1B;
1114
1115 /*
1116 * Get hold of the keyboard state, because we'll need it a few
1117 * times shortly.
1118 */
1119 ret = GetKeyboardState(keystate);
1120
1121 /*
1122 * Shift-PgUp, Shift-PgDn, and Alt-F4 all produce window
1123 * events: we'll deal with those now.
1124 */
1125 if (ret && (keystate[VK_SHIFT] & 0x80) && wParam == VK_PRIOR) {
1126 SendMessage (hwnd, WM_VSCROLL, SB_PAGEUP, 0);
1127 return 0;
1128 }
1129 if (ret && (keystate[VK_SHIFT] & 0x80) && wParam == VK_NEXT) {
1130 SendMessage (hwnd, WM_VSCROLL, SB_PAGEDOWN, 0);
1131 return 0;
1132 }
1133 if ((lParam & 0x20000000) && wParam == VK_F4) {
1134 SendMessage (hwnd, WM_DESTROY, 0, 0);
1135 return 0;
1136 }
1137
1138 /*
1139 * In general, the strategy is to see what the Windows keymap
1140 * translation has to say for itself, and then process function
1141 * keys and suchlike ourselves if that fails. But first we must
1142 * deal with the small number of special cases which the
1143 * Windows keymap translator thinks it can do but gets wrong.
1144 *
1145 * First special case: we might want the Backspace key to send
1146 * 0x7F not 0x08.
1147 */
1148 if (wParam == VK_BACK) {
1149 *p++ = (cfg.bksp_is_delete ? 0x7F : 0x08);
1150 return p - output;
1151 }
1152
1153 /*
1154 * Control-Space should send ^@ (0x00), not Space.
1155 */
1156 if (ret && (keystate[VK_CONTROL] & 0x80) && wParam == VK_SPACE) {
1157 *p++ = 0x00;
1158 return p - output;
1159 }
1160
1161 /*
1162 * If we're in applications keypad mode, we have to process it
1163 * before char-map translation, because it will pre-empt lots
1164 * of stuff, even if NumLock is off.
1165 */
1166 if (app_keypad_keys) {
1167 if (ret) {
1168 /*
1169 * Hack to ensure NumLock doesn't interfere with
1170 * perception of Shift for Keypad Plus. I don't pretend
1171 * to understand this, but it seems to work as is.
1172 * Leave it alone, or die.
1173 */
1174 keystate[VK_NUMLOCK] = 0;
1175 SetKeyboardState (keystate);
1176 GetKeyboardState (keystate);
1177 }
1178 switch ( (lParam >> 16) & 0x1FF ) {
1179 case 0x145: p += sprintf((char *)p, "\x1BOP"); return p - output;
1180 case 0x135: p += sprintf((char *)p, "\x1BOQ"); return p - output;
1181 case 0x037: p += sprintf((char *)p, "\x1BOR"); return p - output;
1182 case 0x047: p += sprintf((char *)p, "\x1BOw"); return p - output;
1183 case 0x048: p += sprintf((char *)p, "\x1BOx"); return p - output;
1184 case 0x049: p += sprintf((char *)p, "\x1BOy"); return p - output;
1185 case 0x04A: p += sprintf((char *)p, "\x1BOS"); return p - output;
1186 case 0x04B: p += sprintf((char *)p, "\x1BOt"); return p - output;
1187 case 0x04C: p += sprintf((char *)p, "\x1BOu"); return p - output;
1188 case 0x04D: p += sprintf((char *)p, "\x1BOv"); return p - output;
1189 case 0x04E: /* keypad + is ^[Ol, but ^[Om with Shift */
1190 p += sprintf((char *)p,
1191 (ret && (keystate[VK_SHIFT] & 0x80)) ?
1192 "\x1BOm" : "\x1BOl");
1193 return p - output;
1194 case 0x04F: p += sprintf((char *)p, "\x1BOq"); return p - output;
1195 case 0x050: p += sprintf((char *)p, "\x1BOr"); return p - output;
1196 case 0x051: p += sprintf((char *)p, "\x1BOs"); return p - output;
1197 case 0x052: p += sprintf((char *)p, "\x1BOp"); return p - output;
1198 case 0x053: p += sprintf((char *)p, "\x1BOn"); return p - output;
1199 case 0x11C: p += sprintf((char *)p, "\x1BOM"); return p - output;
1200 }
1201 }
1202
1203 /*
1204 * Before doing Windows charmap translation, remove ALT from
1205 * the keymap, since its sole effect should be to prepend ESC,
1206 * which we've already done. Note that removal of ALT has to
1207 * happen _after_ the above call to SetKeyboardState, or dire
1208 * things will befall.
1209 */
1210 keystate[VK_MENU] = keystate[VK_LMENU] = keystate[VK_RMENU] = 0;
1211
1212 /*
1213 * Attempt the Windows char-map translation.
1214 */
1215 if (ret) {
1216 WORD chr;
1217 int r = ToAscii (wParam, (lParam >> 16) & 0xFF,
1218 keystate, &chr, 0);
1219 if (r == 1) {
1220 *p++ = chr & 0xFF;
1221 return p - output;
1222 }
1223 }
1224
1225 /*
1226 * OK, we haven't had a key code from the keymap translation.
1227 * We'll try our various special cases and function keys, and
1228 * then give up. (There's nothing wrong with giving up:
1229 * Scrollock, Pause/Break, and of course the various buckybit
1230 * keys all produce KEYDOWN events that we really _do_ want to
1231 * ignore.)
1232 */
1233
1234 /*
1235 * Control-2 should return ^@ (0x00), Control-6 should return
1236 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
1237 * the DOS keyboard handling did it, and we have nothing better
1238 * to do with the key combo in question, we'll also map
1239 * Control-Backquote to ^\ (0x1C).
1240 */
1241 if (ret && (keystate[VK_CONTROL] & 0x80) && wParam == '2') {
1242 *p++ = 0x00;
1243 return p - output;
1244 }
1245 if (ret && (keystate[VK_CONTROL] & 0x80) && wParam == '6') {
1246 *p++ = 0x1E;
1247 return p - output;
1248 }
1249 if (ret && (keystate[VK_CONTROL] & 0x80) && wParam == 0xBD) {
1250 *p++ = 0x1F;
1251 return p - output;
1252 }
1253 if (ret && (keystate[VK_CONTROL] & 0x80) && wParam == 0xDF) {
1254 *p++ = 0x1C;
1255 return p - output;
1256 }
1257
1258 /*
1259 * First, all the keys that do tilde codes. (ESC '[' nn '~',
1260 * for integer decimal nn.)
1261 *
1262 * We also deal with the weird ones here. Linux VCs replace F1
1263 * to F5 by ESC [ [ A to ESC [ [ E. rxvt doesn't do _that_, but
1264 * does replace Home and End (1~ and 4~) by ESC [ H and ESC O w
1265 * respectively.
1266 */
1267 code = 0;
1268 switch (wParam) {
1269 case VK_F1: code = (keystate[VK_SHIFT] & 0x80 ? 23 : 11); break;
1270 case VK_F2: code = (keystate[VK_SHIFT] & 0x80 ? 24 : 12); break;
1271 case VK_F3: code = (keystate[VK_SHIFT] & 0x80 ? 25 : 13); break;
1272 case VK_F4: code = (keystate[VK_SHIFT] & 0x80 ? 26 : 14); break;
1273 case VK_F5: code = (keystate[VK_SHIFT] & 0x80 ? 28 : 15); break;
1274 case VK_F6: code = (keystate[VK_SHIFT] & 0x80 ? 29 : 17); break;
1275 case VK_F7: code = (keystate[VK_SHIFT] & 0x80 ? 31 : 18); break;
1276 case VK_F8: code = (keystate[VK_SHIFT] & 0x80 ? 32 : 19); break;
1277 case VK_F9: code = (keystate[VK_SHIFT] & 0x80 ? 33 : 20); break;
1278 case VK_F10: code = (keystate[VK_SHIFT] & 0x80 ? 34 : 21); break;
1279 case VK_F11: code = 23; break;
1280 case VK_F12: code = 24; break;
1281 case VK_HOME: code = 1; break;
1282 case VK_INSERT: code = 2; break;
1283 case VK_DELETE: code = 3; break;
1284 case VK_END: code = 4; break;
1285 case VK_PRIOR: code = 5; break;
1286 case VK_NEXT: code = 6; break;
1287 }
1288 if (cfg.linux_funkeys && code >= 11 && code <= 15) {
1289 p += sprintf((char *)p, "\x1B[[%c", code + 'A' - 11);
1290 return p - output;
1291 }
1292 if (cfg.rxvt_homeend && (code == 1 || code == 4)) {
1293 p += sprintf((char *)p, code == 1 ? "\x1B[H" : "\x1BOw");
1294 return p - output;
1295 }
1296 if (code) {
1297 p += sprintf((char *)p, "\x1B[%d~", code);
1298 return p - output;
1299 }
1300
1301 /*
1302 * Now the remaining keys (arrows and Keypad 5. Keypad 5 for
1303 * some reason seems to send VK_CLEAR to Windows...).
1304 */
1305 switch (wParam) {
1306 case VK_UP:
1307 p += sprintf((char *)p, app_cursor_keys ? "\x1BOA" : "\x1B[A");
1308 return p - output;
1309 case VK_DOWN:
1310 p += sprintf((char *)p, app_cursor_keys ? "\x1BOB" : "\x1B[B");
1311 return p - output;
1312 case VK_RIGHT:
1313 p += sprintf((char *)p, app_cursor_keys ? "\x1BOC" : "\x1B[C");
1314 return p - output;
1315 case VK_LEFT:
1316 p += sprintf((char *)p, app_cursor_keys ? "\x1BOD" : "\x1B[D");
1317 return p - output;
1318 case VK_CLEAR: p += sprintf((char *)p, "\x1B[G"); return p - output;
1319 }
1320
1321 return 0;
1322}
1323
1324void set_title (char *title) {
1325 sfree (window_name);
1326 window_name = smalloc(1+strlen(title));
1327 strcpy (window_name, title);
37508af4 1328 if (cfg.win_name_always || !IsIconic(hwnd))
374330e2 1329 SetWindowText (hwnd, title);
1330}
1331
1332void set_icon (char *title) {
1333 sfree (icon_name);
1334 icon_name = smalloc(1+strlen(title));
1335 strcpy (icon_name, title);
37508af4 1336 if (!cfg.win_name_always && IsIconic(hwnd))
374330e2 1337 SetWindowText (hwnd, title);
1338}
1339
1340void set_sbar (int total, int start, int page) {
1341 SCROLLINFO si;
1342 si.cbSize = sizeof(si);
1343 si.fMask = SIF_RANGE | SIF_PAGE | SIF_POS | SIF_DISABLENOSCROLL;
1344 si.nMin = 0;
1345 si.nMax = total - 1;
1346 si.nPage = page;
1347 si.nPos = start;
1348 SetScrollInfo (hwnd, SB_VERT, &si, TRUE);
1349}
1350
1351Context get_ctx() {
1352 HDC hdc;
1353 if (hwnd) {
1354 hdc = GetDC (hwnd);
1355 if (hdc && pal)
1356 SelectPalette (hdc, pal, FALSE);
1357 return hdc;
1358 } else
1359 return NULL;
1360}
1361
1362void free_ctx (Context ctx) {
1363 SelectPalette (ctx, GetStockObject (DEFAULT_PALETTE), FALSE);
1364 ReleaseDC (hwnd, ctx);
1365}
1366
1367static void real_palette_set (int n, int r, int g, int b) {
1368 if (pal) {
1369 logpal->palPalEntry[n].peRed = r;
1370 logpal->palPalEntry[n].peGreen = g;
1371 logpal->palPalEntry[n].peBlue = b;
1372 logpal->palPalEntry[n].peFlags = PC_NOCOLLAPSE;
1373 colours[n] = PALETTERGB(r, g, b);
1374 SetPaletteEntries (pal, 0, NCOLOURS, logpal->palPalEntry);
1375 } else
1376 colours[n] = RGB(r, g, b);
1377}
1378
1379void palette_set (int n, int r, int g, int b) {
1380 static const int first[21] = {
1381 0, 2, 4, 6, 8, 10, 12, 14,
1382 1, 3, 5, 7, 9, 11, 13, 15,
1383 16, 17, 18, 20, 22
1384 };
1385 real_palette_set (first[n], r, g, b);
1386 if (first[n] >= 18)
1387 real_palette_set (first[n]+1, r, g, b);
1388 if (pal) {
1389 HDC hdc = get_ctx();
1390 UnrealizeObject (pal);
1391 RealizePalette (hdc);
1392 free_ctx (hdc);
1393 }
1394}
1395
1396void palette_reset (void) {
1397 int i;
1398
1399 for (i = 0; i < NCOLOURS; i++) {
1400 if (pal) {
1401 logpal->palPalEntry[i].peRed = defpal[i].rgbtRed;
1402 logpal->palPalEntry[i].peGreen = defpal[i].rgbtGreen;
1403 logpal->palPalEntry[i].peBlue = defpal[i].rgbtBlue;
1404 logpal->palPalEntry[i].peFlags = 0;
1405 colours[i] = PALETTERGB(defpal[i].rgbtRed,
1406 defpal[i].rgbtGreen,
1407 defpal[i].rgbtBlue);
1408 } else
1409 colours[i] = RGB(defpal[i].rgbtRed,
1410 defpal[i].rgbtGreen,
1411 defpal[i].rgbtBlue);
1412 }
1413
1414 if (pal) {
1415 HDC hdc;
1416 SetPaletteEntries (pal, 0, NCOLOURS, logpal->palPalEntry);
1417 hdc = get_ctx();
1418 RealizePalette (hdc);
1419 free_ctx (hdc);
1420 }
1421}
1422
1423void write_clip (void *data, int len) {
1424 HGLOBAL clipdata;
1425 void *lock;
1426
1427 clipdata = GlobalAlloc (GMEM_DDESHARE | GMEM_MOVEABLE, len + 1);
1428 if (!clipdata)
1429 return;
1430 lock = GlobalLock (clipdata);
1431 if (!lock)
1432 return;
1433 memcpy (lock, data, len);
1434 ((unsigned char *) lock) [len] = 0;
1435 GlobalUnlock (clipdata);
1436
1437 SendMessage (hwnd, WM_IGNORE_CLIP, TRUE, 0);
1438 if (OpenClipboard (hwnd)) {
1439 EmptyClipboard();
1440 SetClipboardData (CF_TEXT, clipdata);
1441 CloseClipboard();
1442 } else
1443 GlobalFree (clipdata);
1444 SendMessage (hwnd, WM_IGNORE_CLIP, FALSE, 0);
1445}
1446
1447void get_clip (void **p, int *len) {
1448 static HGLOBAL clipdata = NULL;
1449
1450 if (!p) {
1451 if (clipdata)
1452 GlobalUnlock (clipdata);
1453 clipdata = NULL;
1454 return;
1455 } else {
1456 if (OpenClipboard (NULL)) {
1457 clipdata = GetClipboardData (CF_TEXT);
1458 CloseClipboard();
1459 if (clipdata) {
1460 *p = GlobalLock (clipdata);
1461 if (*p) {
1462 *len = strlen(*p);
1463 return;
1464 }
1465 }
1466 }
1467 }
1468
1469 *p = NULL;
1470 *len = 0;
1471}
1472
1473/*
1474 * Move `lines' lines from position `from' to position `to' in the
1475 * window.
1476 */
1477void optimised_move (int to, int from, int lines) {
1478 RECT r;
1479 int min, max, d;
1480
1481 min = (to < from ? to : from);
1482 max = to + from - min;
1483 d = max - min;
1484
1485 r.left = 0; r.right = cols * font_width;
1486 r.top = min * font_height; r.bottom = (max+lines) * font_height;
1487 ScrollWindow (hwnd, 0, (to - from) * font_height, &r, &r);
1488}
1489
1490/*
1491 * Print a message box and perform a fatal exit.
1492 */
1493void fatalbox(char *fmt, ...) {
1494 va_list ap;
1495 char stuff[200];
1496
1497 va_start(ap, fmt);
1498 vsprintf(stuff, fmt, ap);
1499 va_end(ap);
1500 MessageBox(hwnd, stuff, "PuTTY Fatal Error", MB_ICONERROR | MB_OK);
1501 exit(1);
1502}
1503
1504/*
1505 * Beep.
1506 */
1507void beep(void) {
1508 MessageBeep(MB_OK);
1509}
Local modifications for Simon Tatham's `PuTTY' SSH client and terminal emulator