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New front end functions to save and restore a region of the puzzle
[sgt/puzzles] / windows.c
1 /*
2 * windows.c: Windows front end for my puzzle collection.
3 *
4 * TODO:
5 *
6 * - Figure out what to do if a puzzle requests a size bigger than
7 * the screen will take. In principle we could put scrollbars in
8 * the window, although that would be pretty horrid. Another
9 * option is to detect in advance that this will be a problem -
10 * we can probably tell this using midend_size() before actually
11 * generating the puzzle - and simply refuse to do it.
12 */
13
14 #include <windows.h>
15 #include <commctrl.h>
16
17 #include <stdio.h>
18 #include <assert.h>
19 #include <ctype.h>
20 #include <stdarg.h>
21 #include <stdlib.h>
22 #include <limits.h>
23 #include <time.h>
24
25 #include "puzzles.h"
26
27 #define IDM_NEW 0x0010
28 #define IDM_RESTART 0x0020
29 #define IDM_UNDO 0x0030
30 #define IDM_REDO 0x0040
31 #define IDM_COPY 0x0050
32 #define IDM_SOLVE 0x0060
33 #define IDM_QUIT 0x0070
34 #define IDM_CONFIG 0x0080
35 #define IDM_DESC 0x0090
36 #define IDM_SEED 0x00A0
37 #define IDM_HELPC 0x00B0
38 #define IDM_GAMEHELP 0x00C0
39 #define IDM_ABOUT 0x00D0
40 #define IDM_PRESETS 0x0100
41
42 #define HELP_FILE_NAME "puzzles.hlp"
43 #define HELP_CNT_NAME "puzzles.cnt"
44
45 #ifdef DEBUG
46 static FILE *debug_fp = NULL;
47 static HANDLE debug_hdl = INVALID_HANDLE_VALUE;
48 static int debug_got_console = 0;
49
50 void dputs(char *buf)
51 {
52 DWORD dw;
53
54 if (!debug_got_console) {
55 if (AllocConsole()) {
56 debug_got_console = 1;
57 debug_hdl = GetStdHandle(STD_OUTPUT_HANDLE);
58 }
59 }
60 if (!debug_fp) {
61 debug_fp = fopen("debug.log", "w");
62 }
63
64 if (debug_hdl != INVALID_HANDLE_VALUE) {
65 WriteFile(debug_hdl, buf, strlen(buf), &dw, NULL);
66 }
67 fputs(buf, debug_fp);
68 fflush(debug_fp);
69 }
70
71 void debug_printf(char *fmt, ...)
72 {
73 char buf[4096];
74 va_list ap;
75
76 va_start(ap, fmt);
77 vsprintf(buf, fmt, ap);
78 dputs(buf);
79 va_end(ap);
80 }
81 #endif
82
83 struct font {
84 HFONT font;
85 int type;
86 int size;
87 };
88
89 struct cfg_aux {
90 int ctlid;
91 };
92
93 struct blitter {
94 HBITMAP bitmap;
95 frontend *fe;
96 int x, y, w, h;
97 };
98
99 struct frontend {
100 midend_data *me;
101 HWND hwnd, statusbar, cfgbox;
102 HINSTANCE inst;
103 HBITMAP bitmap, prevbm;
104 HDC hdc_bm;
105 COLORREF *colours;
106 HBRUSH *brushes;
107 HPEN *pens;
108 HRGN clip;
109 UINT timer;
110 DWORD timer_last_tickcount;
111 int npresets;
112 game_params **presets;
113 struct font *fonts;
114 int nfonts, fontsize;
115 config_item *cfg;
116 struct cfg_aux *cfgaux;
117 int cfg_which, dlg_done;
118 HFONT cfgfont;
119 char *help_path;
120 int help_has_contents;
121 char *laststatus;
122 };
123
124 void fatal(char *fmt, ...)
125 {
126 char buf[2048];
127 va_list ap;
128
129 va_start(ap, fmt);
130 vsprintf(buf, fmt, ap);
131 va_end(ap);
132
133 MessageBox(NULL, buf, "Fatal error", MB_ICONEXCLAMATION | MB_OK);
134
135 exit(1);
136 }
137
138 void get_random_seed(void **randseed, int *randseedsize)
139 {
140 time_t *tp = snew(time_t);
141 time(tp);
142 *randseed = (void *)tp;
143 *randseedsize = sizeof(time_t);
144 }
145
146 void status_bar(frontend *fe, char *text)
147 {
148 char *rewritten = midend_rewrite_statusbar(fe->me, text);
149 if (!fe->laststatus || strcmp(rewritten, fe->laststatus)) {
150 SetWindowText(fe->statusbar, rewritten);
151 sfree(fe->laststatus);
152 fe->laststatus = rewritten;
153 } else {
154 sfree(rewritten);
155 }
156 }
157
158 blitter *blitter_new(int w, int h)
159 {
160 blitter *bl = snew(blitter);
161
162 memset(bl, 0, sizeof(blitter));
163 bl->w = w;
164 bl->h = h;
165 bl->bitmap = 0;
166
167 return bl;
168 }
169
170 void blitter_free(blitter *bl)
171 {
172 if (bl->bitmap) DeleteObject(bl->bitmap);
173 sfree(bl);
174 }
175
176 static void blitter_mkbitmap(frontend *fe, blitter *bl)
177 {
178 HDC hdc = GetDC(fe->hwnd);
179 bl->bitmap = CreateCompatibleBitmap(hdc, bl->w, bl->h);
180 ReleaseDC(fe->hwnd, hdc);
181 }
182
183 /* BitBlt(dstDC, dstX, dstY, dstW, dstH, srcDC, srcX, srcY, dType) */
184
185 void blitter_save(frontend *fe, blitter *bl, int x, int y)
186 {
187 HDC hdc_win, hdc_blit;
188 HBITMAP prev_blit;
189
190 if (!bl->bitmap) blitter_mkbitmap(fe, bl);
191
192 bl->x = x; bl->y = y;
193
194 hdc_win = GetDC(fe->hwnd);
195 hdc_blit = CreateCompatibleDC(hdc_win);
196 if (!hdc_blit) fatal("hdc_blit failed: 0x%x", GetLastError());
197
198 prev_blit = SelectObject(hdc_blit, bl->bitmap);
199 if (prev_blit == NULL || prev_blit == HGDI_ERROR)
200 fatal("SelectObject for hdc_main failed: 0x%x", GetLastError());
201
202 if (!BitBlt(hdc_blit, 0, 0, bl->w, bl->h,
203 fe->hdc_bm, x, y, SRCCOPY))
204 fatal("BitBlt failed: 0x%x", GetLastError());
205
206 SelectObject(hdc_blit, prev_blit);
207 DeleteDC(hdc_blit);
208 ReleaseDC(fe->hwnd, hdc_win);
209 }
210
211 void blitter_load(frontend *fe, blitter *bl, int x, int y)
212 {
213 HDC hdc_win, hdc_blit;
214 HBITMAP prev_blit;
215
216 assert(bl->bitmap); /* we should always have saved before loading */
217
218 if (x == BLITTER_FROMSAVED) x = bl->x;
219 if (y == BLITTER_FROMSAVED) y = bl->y;
220
221 hdc_win = GetDC(fe->hwnd);
222 hdc_blit = CreateCompatibleDC(hdc_win);
223
224 prev_blit = SelectObject(hdc_blit, bl->bitmap);
225
226 BitBlt(fe->hdc_bm, x, y, bl->w, bl->h,
227 hdc_blit, 0, 0, SRCCOPY);
228
229 SelectObject(hdc_blit, prev_blit);
230 DeleteDC(hdc_blit);
231 ReleaseDC(fe->hwnd, hdc_win);
232 }
233
234 void frontend_default_colour(frontend *fe, float *output)
235 {
236 DWORD c = GetSysColor(COLOR_MENU); /* ick */
237
238 output[0] = (float)(GetRValue(c) / 255.0);
239 output[1] = (float)(GetGValue(c) / 255.0);
240 output[2] = (float)(GetBValue(c) / 255.0);
241 }
242
243 void clip(frontend *fe, int x, int y, int w, int h)
244 {
245 IntersectClipRect(fe->hdc_bm, x, y, x+w, y+h);
246 }
247
248 void unclip(frontend *fe)
249 {
250 SelectClipRgn(fe->hdc_bm, NULL);
251 }
252
253 void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize,
254 int align, int colour, char *text)
255 {
256 int i;
257
258 /*
259 * Find or create the font.
260 */
261 for (i = 0; i < fe->nfonts; i++)
262 if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
263 break;
264
265 if (i == fe->nfonts) {
266 if (fe->fontsize <= fe->nfonts) {
267 fe->fontsize = fe->nfonts + 10;
268 fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
269 }
270
271 fe->nfonts++;
272
273 fe->fonts[i].type = fonttype;
274 fe->fonts[i].size = fontsize;
275
276 fe->fonts[i].font = CreateFont(-fontsize, 0, 0, 0, FW_BOLD,
277 FALSE, FALSE, FALSE, DEFAULT_CHARSET,
278 OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
279 DEFAULT_QUALITY,
280 (fonttype == FONT_FIXED ?
281 FIXED_PITCH | FF_DONTCARE :
282 VARIABLE_PITCH | FF_SWISS),
283 NULL);
284 }
285
286 /*
287 * Position and draw the text.
288 */
289 {
290 HFONT oldfont;
291 TEXTMETRIC tm;
292 SIZE size;
293
294 oldfont = SelectObject(fe->hdc_bm, fe->fonts[i].font);
295 if (GetTextMetrics(fe->hdc_bm, &tm)) {
296 if (align & ALIGN_VCENTRE)
297 y -= (tm.tmAscent+tm.tmDescent)/2;
298 else
299 y -= tm.tmAscent;
300 }
301 if (GetTextExtentPoint32(fe->hdc_bm, text, strlen(text), &size)) {
302 if (align & ALIGN_HCENTRE)
303 x -= size.cx / 2;
304 else if (align & ALIGN_HRIGHT)
305 x -= size.cx;
306 }
307 SetBkMode(fe->hdc_bm, TRANSPARENT);
308 SetTextColor(fe->hdc_bm, fe->colours[colour]);
309 TextOut(fe->hdc_bm, x, y, text, strlen(text));
310 SelectObject(fe->hdc_bm, oldfont);
311 }
312 }
313
314 void draw_rect(frontend *fe, int x, int y, int w, int h, int colour)
315 {
316 if (w == 1 && h == 1) {
317 /*
318 * Rectangle() appears to get uppity if asked to draw a 1x1
319 * rectangle, presumably on the grounds that that's beneath
320 * its dignity and you ought to be using SetPixel instead.
321 * So I will.
322 */
323 SetPixel(fe->hdc_bm, x, y, fe->colours[colour]);
324 } else {
325 HBRUSH oldbrush = SelectObject(fe->hdc_bm, fe->brushes[colour]);
326 HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]);
327 Rectangle(fe->hdc_bm, x, y, x+w, y+h);
328 SelectObject(fe->hdc_bm, oldbrush);
329 SelectObject(fe->hdc_bm, oldpen);
330 }
331 }
332
333 void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour)
334 {
335 HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]);
336 MoveToEx(fe->hdc_bm, x1, y1, NULL);
337 LineTo(fe->hdc_bm, x2, y2);
338 SetPixel(fe->hdc_bm, x2, y2, fe->colours[colour]);
339 SelectObject(fe->hdc_bm, oldpen);
340 }
341
342 void draw_polygon(frontend *fe, int *coords, int npoints,
343 int fill, int colour)
344 {
345 POINT *pts = snewn(npoints+1, POINT);
346 int i;
347
348 for (i = 0; i <= npoints; i++) {
349 int j = (i < npoints ? i : 0);
350 pts[i].x = coords[j*2];
351 pts[i].y = coords[j*2+1];
352 }
353
354 if (fill) {
355 HBRUSH oldbrush = SelectObject(fe->hdc_bm, fe->brushes[colour]);
356 HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]);
357 Polygon(fe->hdc_bm, pts, npoints);
358 SelectObject(fe->hdc_bm, oldbrush);
359 SelectObject(fe->hdc_bm, oldpen);
360 } else {
361 HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]);
362 Polyline(fe->hdc_bm, pts, npoints+1);
363 SelectObject(fe->hdc_bm, oldpen);
364 }
365
366 sfree(pts);
367 }
368
369 void start_draw(frontend *fe)
370 {
371 HDC hdc_win;
372 hdc_win = GetDC(fe->hwnd);
373 fe->hdc_bm = CreateCompatibleDC(hdc_win);
374 fe->prevbm = SelectObject(fe->hdc_bm, fe->bitmap);
375 ReleaseDC(fe->hwnd, hdc_win);
376 fe->clip = NULL;
377 SetMapMode(fe->hdc_bm, MM_TEXT);
378 }
379
380 void draw_update(frontend *fe, int x, int y, int w, int h)
381 {
382 RECT r;
383
384 r.left = x;
385 r.top = y;
386 r.right = x + w;
387 r.bottom = y + h;
388
389 InvalidateRect(fe->hwnd, &r, FALSE);
390 }
391
392 void end_draw(frontend *fe)
393 {
394 SelectObject(fe->hdc_bm, fe->prevbm);
395 DeleteDC(fe->hdc_bm);
396 if (fe->clip) {
397 DeleteObject(fe->clip);
398 fe->clip = NULL;
399 }
400 }
401
402 void deactivate_timer(frontend *fe)
403 {
404 KillTimer(fe->hwnd, fe->timer);
405 fe->timer = 0;
406 }
407
408 void activate_timer(frontend *fe)
409 {
410 if (!fe->timer) {
411 fe->timer = SetTimer(fe->hwnd, fe->timer, 20, NULL);
412 fe->timer_last_tickcount = GetTickCount();
413 }
414 }
415
416 void write_clip(HWND hwnd, char *data)
417 {
418 HGLOBAL clipdata;
419 int len, i, j;
420 char *data2;
421 void *lock;
422
423 /*
424 * Windows expects CRLF in the clipboard, so we must convert
425 * any \n that has come out of the puzzle backend.
426 */
427 len = 0;
428 for (i = 0; data[i]; i++) {
429 if (data[i] == '\n')
430 len++;
431 len++;
432 }
433 data2 = snewn(len+1, char);
434 j = 0;
435 for (i = 0; data[i]; i++) {
436 if (data[i] == '\n')
437 data2[j++] = '\r';
438 data2[j++] = data[i];
439 }
440 assert(j == len);
441 data2[j] = '\0';
442
443 clipdata = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, len + 1);
444 if (!clipdata)
445 return;
446 lock = GlobalLock(clipdata);
447 if (!lock)
448 return;
449 memcpy(lock, data2, len);
450 ((unsigned char *) lock)[len] = 0;
451 GlobalUnlock(clipdata);
452
453 if (OpenClipboard(hwnd)) {
454 EmptyClipboard();
455 SetClipboardData(CF_TEXT, clipdata);
456 CloseClipboard();
457 } else
458 GlobalFree(clipdata);
459
460 sfree(data2);
461 }
462
463 /*
464 * See if we can find a help file.
465 */
466 static void find_help_file(frontend *fe)
467 {
468 char b[2048], *p, *q, *r;
469 FILE *fp;
470 if (!fe->help_path) {
471 GetModuleFileName(NULL, b, sizeof(b) - 1);
472 r = b;
473 p = strrchr(b, '\\');
474 if (p && p >= r) r = p+1;
475 q = strrchr(b, ':');
476 if (q && q >= r) r = q+1;
477 strcpy(r, HELP_FILE_NAME);
478 if ( (fp = fopen(b, "r")) != NULL) {
479 fe->help_path = dupstr(b);
480 fclose(fp);
481 } else
482 fe->help_path = NULL;
483 strcpy(r, HELP_CNT_NAME);
484 if ( (fp = fopen(b, "r")) != NULL) {
485 fe->help_has_contents = TRUE;
486 fclose(fp);
487 } else
488 fe->help_has_contents = FALSE;
489 }
490 }
491
492 static void check_window_size(frontend *fe, int *px, int *py)
493 {
494 RECT r;
495 int x, y, sy;
496
497 if (fe->statusbar) {
498 RECT sr;
499 GetWindowRect(fe->statusbar, &sr);
500 sy = sr.bottom - sr.top;
501 } else {
502 sy = 0;
503 }
504
505 /*
506 * See if we actually got the window size we wanted, and adjust
507 * the puzzle size if not.
508 */
509 GetClientRect(fe->hwnd, &r);
510 x = r.right - r.left;
511 y = r.bottom - r.top - sy;
512 midend_size(fe->me, &x, &y, FALSE);
513 if (x != r.right - r.left || y != r.bottom - r.top) {
514 /*
515 * Resize the window, now we know what size we _really_
516 * want it to be.
517 */
518 r.left = r.top = 0;
519 r.right = x;
520 r.bottom = y + sy;
521 AdjustWindowRectEx(&r, WS_OVERLAPPEDWINDOW &~
522 (WS_THICKFRAME | WS_MAXIMIZEBOX | WS_OVERLAPPED),
523 TRUE, 0);
524 SetWindowPos(fe->hwnd, NULL, 0, 0, r.right - r.left, r.bottom - r.top,
525 SWP_NOMOVE | SWP_NOZORDER);
526 }
527
528 if (fe->statusbar) {
529 GetClientRect(fe->hwnd, &r);
530 SetWindowPos(fe->statusbar, NULL, 0, r.bottom-r.top-sy, r.right-r.left,
531 sy, SWP_NOZORDER);
532 }
533
534 *px = x;
535 *py = y;
536 }
537
538 static frontend *new_window(HINSTANCE inst, char *game_id, char **error)
539 {
540 frontend *fe;
541 int x, y;
542 RECT r;
543 HDC hdc;
544
545 fe = snew(frontend);
546
547 fe->me = midend_new(fe, &thegame);
548
549 if (game_id) {
550 *error = midend_game_id(fe->me, game_id);
551 if (*error) {
552 midend_free(fe->me);
553 sfree(fe);
554 return NULL;
555 }
556 }
557
558 fe->help_path = NULL;
559 find_help_file(fe);
560
561 fe->inst = inst;
562 midend_new_game(fe->me);
563
564 fe->timer = 0;
565
566 fe->fonts = NULL;
567 fe->nfonts = fe->fontsize = 0;
568
569 fe->laststatus = NULL;
570
571 {
572 int i, ncolours;
573 float *colours;
574
575 colours = midend_colours(fe->me, &ncolours);
576
577 fe->colours = snewn(ncolours, COLORREF);
578 fe->brushes = snewn(ncolours, HBRUSH);
579 fe->pens = snewn(ncolours, HPEN);
580
581 for (i = 0; i < ncolours; i++) {
582 fe->colours[i] = RGB(255 * colours[i*3+0],
583 255 * colours[i*3+1],
584 255 * colours[i*3+2]);
585 fe->brushes[i] = CreateSolidBrush(fe->colours[i]);
586 fe->pens[i] = CreatePen(PS_SOLID, 1, fe->colours[i]);
587 }
588 }
589
590 x = y = INT_MAX; /* find puzzle's preferred size */
591 midend_size(fe->me, &x, &y, FALSE);
592
593 r.left = r.top = 0;
594 r.right = x;
595 r.bottom = y;
596 AdjustWindowRectEx(&r, WS_OVERLAPPEDWINDOW &~
597 (WS_THICKFRAME | WS_MAXIMIZEBOX | WS_OVERLAPPED),
598 TRUE, 0);
599
600 fe->hwnd = CreateWindowEx(0, thegame.name, thegame.name,
601 WS_OVERLAPPEDWINDOW &~
602 (WS_THICKFRAME | WS_MAXIMIZEBOX),
603 CW_USEDEFAULT, CW_USEDEFAULT,
604 r.right - r.left, r.bottom - r.top,
605 NULL, NULL, inst, NULL);
606
607 if (midend_wants_statusbar(fe->me)) {
608 RECT sr;
609 fe->statusbar = CreateWindowEx(0, STATUSCLASSNAME, "ooh",
610 WS_CHILD | WS_VISIBLE,
611 0, 0, 0, 0, /* status bar does these */
612 fe->hwnd, NULL, inst, NULL);
613 /*
614 * Now resize the window to take account of the status bar.
615 */
616 GetWindowRect(fe->statusbar, &sr);
617 GetWindowRect(fe->hwnd, &r);
618 SetWindowPos(fe->hwnd, NULL, 0, 0, r.right - r.left,
619 r.bottom - r.top + sr.bottom - sr.top,
620 SWP_NOMOVE | SWP_NOZORDER);
621 } else {
622 fe->statusbar = NULL;
623 }
624
625 {
626 HMENU bar = CreateMenu();
627 HMENU menu = CreateMenu();
628
629 AppendMenu(bar, MF_ENABLED|MF_POPUP, (UINT)menu, "Game");
630 AppendMenu(menu, MF_ENABLED, IDM_NEW, "New");
631 AppendMenu(menu, MF_ENABLED, IDM_RESTART, "Restart");
632 AppendMenu(menu, MF_ENABLED, IDM_DESC, "Specific...");
633 AppendMenu(menu, MF_ENABLED, IDM_SEED, "Random Seed...");
634
635 if ((fe->npresets = midend_num_presets(fe->me)) > 0 ||
636 thegame.can_configure) {
637 HMENU sub = CreateMenu();
638 int i;
639
640 AppendMenu(bar, MF_ENABLED|MF_POPUP, (UINT)sub, "Type");
641
642 fe->presets = snewn(fe->npresets, game_params *);
643
644 for (i = 0; i < fe->npresets; i++) {
645 char *name;
646
647 midend_fetch_preset(fe->me, i, &name, &fe->presets[i]);
648
649 /*
650 * FIXME: we ought to go through and do something
651 * with ampersands here.
652 */
653
654 AppendMenu(sub, MF_ENABLED, IDM_PRESETS + 0x10 * i, name);
655 }
656
657 if (thegame.can_configure) {
658 AppendMenu(sub, MF_ENABLED, IDM_CONFIG, "Custom...");
659 }
660 }
661
662 AppendMenu(menu, MF_SEPARATOR, 0, 0);
663 AppendMenu(menu, MF_ENABLED, IDM_UNDO, "Undo");
664 AppendMenu(menu, MF_ENABLED, IDM_REDO, "Redo");
665 if (thegame.can_format_as_text) {
666 AppendMenu(menu, MF_SEPARATOR, 0, 0);
667 AppendMenu(menu, MF_ENABLED, IDM_COPY, "Copy");
668 }
669 if (thegame.can_solve) {
670 AppendMenu(menu, MF_SEPARATOR, 0, 0);
671 AppendMenu(menu, MF_ENABLED, IDM_SOLVE, "Solve");
672 }
673 AppendMenu(menu, MF_SEPARATOR, 0, 0);
674 AppendMenu(menu, MF_ENABLED, IDM_QUIT, "Exit");
675 menu = CreateMenu();
676 AppendMenu(bar, MF_ENABLED|MF_POPUP, (UINT)menu, "Help");
677 AppendMenu(menu, MF_ENABLED, IDM_ABOUT, "About");
678 if (fe->help_path) {
679 AppendMenu(menu, MF_SEPARATOR, 0, 0);
680 AppendMenu(menu, MF_ENABLED, IDM_HELPC, "Contents");
681 if (thegame.winhelp_topic) {
682 char *item;
683 assert(thegame.name);
684 item = snewn(9+strlen(thegame.name), char); /*ick*/
685 sprintf(item, "Help on %s", thegame.name);
686 AppendMenu(menu, MF_ENABLED, IDM_GAMEHELP, item);
687 sfree(item);
688 }
689 }
690 SetMenu(fe->hwnd, bar);
691 }
692
693 check_window_size(fe, &x, &y);
694
695 hdc = GetDC(fe->hwnd);
696 fe->bitmap = CreateCompatibleBitmap(hdc, x, y);
697 ReleaseDC(fe->hwnd, hdc);
698
699 SetWindowLong(fe->hwnd, GWL_USERDATA, (LONG)fe);
700
701 ShowWindow(fe->hwnd, SW_NORMAL);
702 SetForegroundWindow(fe->hwnd);
703
704 midend_redraw(fe->me);
705
706 return fe;
707 }
708
709 static int CALLBACK AboutDlgProc(HWND hwnd, UINT msg,
710 WPARAM wParam, LPARAM lParam)
711 {
712 frontend *fe = (frontend *)GetWindowLong(hwnd, GWL_USERDATA);
713
714 switch (msg) {
715 case WM_INITDIALOG:
716 return 0;
717
718 case WM_COMMAND:
719 if ((HIWORD(wParam) == BN_CLICKED ||
720 HIWORD(wParam) == BN_DOUBLECLICKED) &&
721 LOWORD(wParam) == IDOK)
722 fe->dlg_done = 1;
723 return 0;
724
725 case WM_CLOSE:
726 fe->dlg_done = 1;
727 return 0;
728 }
729
730 return 0;
731 }
732
733 static int CALLBACK ConfigDlgProc(HWND hwnd, UINT msg,
734 WPARAM wParam, LPARAM lParam)
735 {
736 frontend *fe = (frontend *)GetWindowLong(hwnd, GWL_USERDATA);
737 config_item *i;
738 struct cfg_aux *j;
739
740 switch (msg) {
741 case WM_INITDIALOG:
742 return 0;
743
744 case WM_COMMAND:
745 /*
746 * OK and Cancel are special cases.
747 */
748 if ((HIWORD(wParam) == BN_CLICKED ||
749 HIWORD(wParam) == BN_DOUBLECLICKED) &&
750 (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)) {
751 if (LOWORD(wParam) == IDOK) {
752 char *err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
753
754 if (err) {
755 MessageBox(hwnd, err, "Validation error",
756 MB_ICONERROR | MB_OK);
757 } else {
758 fe->dlg_done = 2;
759 }
760 } else {
761 fe->dlg_done = 1;
762 }
763 return 0;
764 }
765
766 /*
767 * First find the control whose id this is.
768 */
769 for (i = fe->cfg, j = fe->cfgaux; i->type != C_END; i++, j++) {
770 if (j->ctlid == LOWORD(wParam))
771 break;
772 }
773 if (i->type == C_END)
774 return 0; /* not our problem */
775
776 if (i->type == C_STRING && HIWORD(wParam) == EN_CHANGE) {
777 char buffer[4096];
778 GetDlgItemText(fe->cfgbox, j->ctlid, buffer, lenof(buffer));
779 buffer[lenof(buffer)-1] = '\0';
780 sfree(i->sval);
781 i->sval = dupstr(buffer);
782 } else if (i->type == C_BOOLEAN &&
783 (HIWORD(wParam) == BN_CLICKED ||
784 HIWORD(wParam) == BN_DOUBLECLICKED)) {
785 i->ival = IsDlgButtonChecked(fe->cfgbox, j->ctlid);
786 } else if (i->type == C_CHOICES &&
787 HIWORD(wParam) == CBN_SELCHANGE) {
788 i->ival = SendDlgItemMessage(fe->cfgbox, j->ctlid,
789 CB_GETCURSEL, 0, 0);
790 }
791
792 return 0;
793
794 case WM_CLOSE:
795 fe->dlg_done = 1;
796 return 0;
797 }
798
799 return 0;
800 }
801
802 HWND mkctrl(frontend *fe, int x1, int x2, int y1, int y2,
803 char *wclass, int wstyle,
804 int exstyle, const char *wtext, int wid)
805 {
806 HWND ret;
807 ret = CreateWindowEx(exstyle, wclass, wtext,
808 wstyle | WS_CHILD | WS_VISIBLE, x1, y1, x2-x1, y2-y1,
809 fe->cfgbox, (HMENU) wid, fe->inst, NULL);
810 SendMessage(ret, WM_SETFONT, (WPARAM)fe->cfgfont, MAKELPARAM(TRUE, 0));
811 return ret;
812 }
813
814 static void about(frontend *fe)
815 {
816 int i;
817 WNDCLASS wc;
818 MSG msg;
819 TEXTMETRIC tm;
820 HDC hdc;
821 HFONT oldfont;
822 SIZE size;
823 int gm, id;
824 int winwidth, winheight, y;
825 int height, width, maxwid;
826 const char *strings[16];
827 int lengths[16];
828 int nstrings = 0;
829 char titlebuf[512];
830
831 sprintf(titlebuf, "About %.250s", thegame.name);
832
833 strings[nstrings++] = thegame.name;
834 strings[nstrings++] = "from Simon Tatham's Portable Puzzle Collection";
835 strings[nstrings++] = ver;
836
837 wc.style = CS_DBLCLKS | CS_SAVEBITS | CS_BYTEALIGNWINDOW;
838 wc.lpfnWndProc = DefDlgProc;
839 wc.cbClsExtra = 0;
840 wc.cbWndExtra = DLGWINDOWEXTRA + 8;
841 wc.hInstance = fe->inst;
842 wc.hIcon = NULL;
843 wc.hCursor = LoadCursor(NULL, IDC_ARROW);
844 wc.hbrBackground = (HBRUSH) (COLOR_BACKGROUND +1);
845 wc.lpszMenuName = NULL;
846 wc.lpszClassName = "GameAboutBox";
847 RegisterClass(&wc);
848
849 hdc = GetDC(fe->hwnd);
850 SetMapMode(hdc, MM_TEXT);
851
852 fe->dlg_done = FALSE;
853
854 fe->cfgfont = CreateFont(-MulDiv(8, GetDeviceCaps(hdc, LOGPIXELSY), 72),
855 0, 0, 0, 0,
856 FALSE, FALSE, FALSE, DEFAULT_CHARSET,
857 OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
858 DEFAULT_QUALITY,
859 FF_SWISS,
860 "MS Shell Dlg");
861
862 oldfont = SelectObject(hdc, fe->cfgfont);
863 if (GetTextMetrics(hdc, &tm)) {
864 height = tm.tmAscent + tm.tmDescent;
865 width = tm.tmAveCharWidth;
866 } else {
867 height = width = 30;
868 }
869
870 /*
871 * Figure out the layout of the About box by measuring the
872 * length of each piece of text.
873 */
874 maxwid = 0;
875 winheight = height/2;
876
877 for (i = 0; i < nstrings; i++) {
878 if (GetTextExtentPoint32(hdc, strings[i], strlen(strings[i]), &size))
879 lengths[i] = size.cx;
880 else
881 lengths[i] = 0; /* *shrug* */
882 if (maxwid < lengths[i])
883 maxwid = lengths[i];
884 winheight += height * 3 / 2 + (height / 2);
885 }
886
887 winheight += height + height * 7 / 4; /* OK button */
888 winwidth = maxwid + 4*width;
889
890 SelectObject(hdc, oldfont);
891 ReleaseDC(fe->hwnd, hdc);
892
893 /*
894 * Create the dialog, now that we know its size.
895 */
896 {
897 RECT r, r2;
898
899 r.left = r.top = 0;
900 r.right = winwidth;
901 r.bottom = winheight;
902
903 AdjustWindowRectEx(&r, (WS_OVERLAPPEDWINDOW /*|
904 DS_MODALFRAME | WS_POPUP | WS_VISIBLE |
905 WS_CAPTION | WS_SYSMENU*/) &~
906 (WS_MAXIMIZEBOX | WS_OVERLAPPED),
907 FALSE, 0);
908
909 /*
910 * Centre the dialog on its parent window.
911 */
912 r.right -= r.left;
913 r.bottom -= r.top;
914 GetWindowRect(fe->hwnd, &r2);
915 r.left = (r2.left + r2.right - r.right) / 2;
916 r.top = (r2.top + r2.bottom - r.bottom) / 2;
917 r.right += r.left;
918 r.bottom += r.top;
919
920 fe->cfgbox = CreateWindowEx(0, wc.lpszClassName, titlebuf,
921 DS_MODALFRAME | WS_POPUP | WS_VISIBLE |
922 WS_CAPTION | WS_SYSMENU,
923 r.left, r.top,
924 r.right-r.left, r.bottom-r.top,
925 fe->hwnd, NULL, fe->inst, NULL);
926 }
927
928 SendMessage(fe->cfgbox, WM_SETFONT, (WPARAM)fe->cfgfont, FALSE);
929
930 SetWindowLong(fe->cfgbox, GWL_USERDATA, (LONG)fe);
931 SetWindowLong(fe->cfgbox, DWL_DLGPROC, (LONG)AboutDlgProc);
932
933 id = 1000;
934 y = height/2;
935 for (i = 0; i < nstrings; i++) {
936 int border = width*2 + (maxwid - lengths[i]) / 2;
937 mkctrl(fe, border, border+lengths[i], y+height*1/8, y+height*9/8,
938 "Static", 0, 0, strings[i], id++);
939 y += height*3/2;
940
941 assert(y < winheight);
942 y += height/2;
943 }
944
945 y += height/2; /* extra space before OK */
946 mkctrl(fe, width*2, maxwid+width*2, y, y+height*7/4, "BUTTON",
947 BS_PUSHBUTTON | BS_NOTIFY | WS_TABSTOP | BS_DEFPUSHBUTTON, 0,
948 "OK", IDOK);
949
950 SendMessage(fe->cfgbox, WM_INITDIALOG, 0, 0);
951
952 EnableWindow(fe->hwnd, FALSE);
953 ShowWindow(fe->cfgbox, SW_NORMAL);
954 while ((gm=GetMessage(&msg, NULL, 0, 0)) > 0) {
955 if (!IsDialogMessage(fe->cfgbox, &msg))
956 DispatchMessage(&msg);
957 if (fe->dlg_done)
958 break;
959 }
960 EnableWindow(fe->hwnd, TRUE);
961 SetForegroundWindow(fe->hwnd);
962 DestroyWindow(fe->cfgbox);
963 DeleteObject(fe->cfgfont);
964 }
965
966 static int get_config(frontend *fe, int which)
967 {
968 config_item *i;
969 struct cfg_aux *j;
970 char *title;
971 WNDCLASS wc;
972 MSG msg;
973 TEXTMETRIC tm;
974 HDC hdc;
975 HFONT oldfont;
976 SIZE size;
977 HWND ctl;
978 int gm, id, nctrls;
979 int winwidth, winheight, col1l, col1r, col2l, col2r, y;
980 int height, width, maxlabel, maxcheckbox;
981
982 wc.style = CS_DBLCLKS | CS_SAVEBITS | CS_BYTEALIGNWINDOW;
983 wc.lpfnWndProc = DefDlgProc;
984 wc.cbClsExtra = 0;
985 wc.cbWndExtra = DLGWINDOWEXTRA + 8;
986 wc.hInstance = fe->inst;
987 wc.hIcon = NULL;
988 wc.hCursor = LoadCursor(NULL, IDC_ARROW);
989 wc.hbrBackground = (HBRUSH) (COLOR_BACKGROUND +1);
990 wc.lpszMenuName = NULL;
991 wc.lpszClassName = "GameConfigBox";
992 RegisterClass(&wc);
993
994 hdc = GetDC(fe->hwnd);
995 SetMapMode(hdc, MM_TEXT);
996
997 fe->dlg_done = FALSE;
998
999 fe->cfgfont = CreateFont(-MulDiv(8, GetDeviceCaps(hdc, LOGPIXELSY), 72),
1000 0, 0, 0, 0,
1001 FALSE, FALSE, FALSE, DEFAULT_CHARSET,
1002 OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
1003 DEFAULT_QUALITY,
1004 FF_SWISS,
1005 "MS Shell Dlg");
1006
1007 oldfont = SelectObject(hdc, fe->cfgfont);
1008 if (GetTextMetrics(hdc, &tm)) {
1009 height = tm.tmAscent + tm.tmDescent;
1010 width = tm.tmAveCharWidth;
1011 } else {
1012 height = width = 30;
1013 }
1014
1015 fe->cfg = midend_get_config(fe->me, which, &title);
1016 fe->cfg_which = which;
1017
1018 /*
1019 * Figure out the layout of the config box by measuring the
1020 * length of each piece of text.
1021 */
1022 maxlabel = maxcheckbox = 0;
1023 winheight = height/2;
1024
1025 for (i = fe->cfg; i->type != C_END; i++) {
1026 switch (i->type) {
1027 case C_STRING:
1028 case C_CHOICES:
1029 /*
1030 * Both these control types have a label filling only
1031 * the left-hand column of the box.
1032 */
1033 if (GetTextExtentPoint32(hdc, i->name, strlen(i->name), &size) &&
1034 maxlabel < size.cx)
1035 maxlabel = size.cx;
1036 winheight += height * 3 / 2 + (height / 2);
1037 break;
1038
1039 case C_BOOLEAN:
1040 /*
1041 * Checkboxes take up the whole of the box width.
1042 */
1043 if (GetTextExtentPoint32(hdc, i->name, strlen(i->name), &size) &&
1044 maxcheckbox < size.cx)
1045 maxcheckbox = size.cx;
1046 winheight += height + (height / 2);
1047 break;
1048 }
1049 }
1050
1051 winheight += height + height * 7 / 4; /* OK / Cancel buttons */
1052
1053 col1l = 2*width;
1054 col1r = col1l + maxlabel;
1055 col2l = col1r + 2*width;
1056 col2r = col2l + 30*width;
1057 if (col2r < col1l+2*height+maxcheckbox)
1058 col2r = col1l+2*height+maxcheckbox;
1059 winwidth = col2r + 2*width;
1060
1061 SelectObject(hdc, oldfont);
1062 ReleaseDC(fe->hwnd, hdc);
1063
1064 /*
1065 * Create the dialog, now that we know its size.
1066 */
1067 {
1068 RECT r, r2;
1069
1070 r.left = r.top = 0;
1071 r.right = winwidth;
1072 r.bottom = winheight;
1073
1074 AdjustWindowRectEx(&r, (WS_OVERLAPPEDWINDOW /*|
1075 DS_MODALFRAME | WS_POPUP | WS_VISIBLE |
1076 WS_CAPTION | WS_SYSMENU*/) &~
1077 (WS_MAXIMIZEBOX | WS_OVERLAPPED),
1078 FALSE, 0);
1079
1080 /*
1081 * Centre the dialog on its parent window.
1082 */
1083 r.right -= r.left;
1084 r.bottom -= r.top;
1085 GetWindowRect(fe->hwnd, &r2);
1086 r.left = (r2.left + r2.right - r.right) / 2;
1087 r.top = (r2.top + r2.bottom - r.bottom) / 2;
1088 r.right += r.left;
1089 r.bottom += r.top;
1090
1091 fe->cfgbox = CreateWindowEx(0, wc.lpszClassName, title,
1092 DS_MODALFRAME | WS_POPUP | WS_VISIBLE |
1093 WS_CAPTION | WS_SYSMENU,
1094 r.left, r.top,
1095 r.right-r.left, r.bottom-r.top,
1096 fe->hwnd, NULL, fe->inst, NULL);
1097 sfree(title);
1098 }
1099
1100 SendMessage(fe->cfgbox, WM_SETFONT, (WPARAM)fe->cfgfont, FALSE);
1101
1102 SetWindowLong(fe->cfgbox, GWL_USERDATA, (LONG)fe);
1103 SetWindowLong(fe->cfgbox, DWL_DLGPROC, (LONG)ConfigDlgProc);
1104
1105 /*
1106 * Count the controls so we can allocate cfgaux.
1107 */
1108 for (nctrls = 0, i = fe->cfg; i->type != C_END; i++)
1109 nctrls++;
1110 fe->cfgaux = snewn(nctrls, struct cfg_aux);
1111
1112 id = 1000;
1113 y = height/2;
1114 for (i = fe->cfg, j = fe->cfgaux; i->type != C_END; i++, j++) {
1115 switch (i->type) {
1116 case C_STRING:
1117 /*
1118 * Edit box with a label beside it.
1119 */
1120 mkctrl(fe, col1l, col1r, y+height*1/8, y+height*9/8,
1121 "Static", 0, 0, i->name, id++);
1122 ctl = mkctrl(fe, col2l, col2r, y, y+height*3/2,
1123 "EDIT", WS_TABSTOP | ES_AUTOHSCROLL,
1124 WS_EX_CLIENTEDGE, "", (j->ctlid = id++));
1125 SetWindowText(ctl, i->sval);
1126 y += height*3/2;
1127 break;
1128
1129 case C_BOOLEAN:
1130 /*
1131 * Simple checkbox.
1132 */
1133 mkctrl(fe, col1l, col2r, y, y+height, "BUTTON",
1134 BS_NOTIFY | BS_AUTOCHECKBOX | WS_TABSTOP,
1135 0, i->name, (j->ctlid = id++));
1136 CheckDlgButton(fe->cfgbox, j->ctlid, (i->ival != 0));
1137 y += height;
1138 break;
1139
1140 case C_CHOICES:
1141 /*
1142 * Drop-down list with a label beside it.
1143 */
1144 mkctrl(fe, col1l, col1r, y+height*1/8, y+height*9/8,
1145 "STATIC", 0, 0, i->name, id++);
1146 ctl = mkctrl(fe, col2l, col2r, y, y+height*41/2,
1147 "COMBOBOX", WS_TABSTOP |
1148 CBS_DROPDOWNLIST | CBS_HASSTRINGS,
1149 WS_EX_CLIENTEDGE, "", (j->ctlid = id++));
1150 {
1151 char c, *p, *q, *str;
1152
1153 SendMessage(ctl, CB_RESETCONTENT, 0, 0);
1154 p = i->sval;
1155 c = *p++;
1156 while (*p) {
1157 q = p;
1158 while (*q && *q != c) q++;
1159 str = snewn(q-p+1, char);
1160 strncpy(str, p, q-p);
1161 str[q-p] = '\0';
1162 SendMessage(ctl, CB_ADDSTRING, 0, (LPARAM)str);
1163 sfree(str);
1164 if (*q) q++;
1165 p = q;
1166 }
1167 }
1168
1169 SendMessage(ctl, CB_SETCURSEL, i->ival, 0);
1170
1171 y += height*3/2;
1172 break;
1173 }
1174
1175 assert(y < winheight);
1176 y += height/2;
1177 }
1178
1179 y += height/2; /* extra space before OK and Cancel */
1180 mkctrl(fe, col1l, (col1l+col2r)/2-width, y, y+height*7/4, "BUTTON",
1181 BS_PUSHBUTTON | BS_NOTIFY | WS_TABSTOP | BS_DEFPUSHBUTTON, 0,
1182 "OK", IDOK);
1183 mkctrl(fe, (col1l+col2r)/2+width, col2r, y, y+height*7/4, "BUTTON",
1184 BS_PUSHBUTTON | BS_NOTIFY | WS_TABSTOP, 0, "Cancel", IDCANCEL);
1185
1186 SendMessage(fe->cfgbox, WM_INITDIALOG, 0, 0);
1187
1188 EnableWindow(fe->hwnd, FALSE);
1189 ShowWindow(fe->cfgbox, SW_NORMAL);
1190 while ((gm=GetMessage(&msg, NULL, 0, 0)) > 0) {
1191 if (!IsDialogMessage(fe->cfgbox, &msg))
1192 DispatchMessage(&msg);
1193 if (fe->dlg_done)
1194 break;
1195 }
1196 EnableWindow(fe->hwnd, TRUE);
1197 SetForegroundWindow(fe->hwnd);
1198 DestroyWindow(fe->cfgbox);
1199 DeleteObject(fe->cfgfont);
1200
1201 free_cfg(fe->cfg);
1202 sfree(fe->cfgaux);
1203
1204 return (fe->dlg_done == 2);
1205 }
1206
1207 static void new_game_type(frontend *fe)
1208 {
1209 RECT r, sr;
1210 HDC hdc;
1211 int x, y;
1212
1213 midend_new_game(fe->me);
1214 x = y = INT_MAX;
1215 midend_size(fe->me, &x, &y, FALSE);
1216
1217 r.left = r.top = 0;
1218 r.right = x;
1219 r.bottom = y;
1220 AdjustWindowRectEx(&r, WS_OVERLAPPEDWINDOW &~
1221 (WS_THICKFRAME | WS_MAXIMIZEBOX |
1222 WS_OVERLAPPED),
1223 TRUE, 0);
1224
1225 if (fe->statusbar != NULL) {
1226 GetWindowRect(fe->statusbar, &sr);
1227 } else {
1228 sr.left = sr.right = sr.top = sr.bottom = 0;
1229 }
1230 SetWindowPos(fe->hwnd, NULL, 0, 0,
1231 r.right - r.left,
1232 r.bottom - r.top + sr.bottom - sr.top,
1233 SWP_NOMOVE | SWP_NOZORDER);
1234
1235 check_window_size(fe, &x, &y);
1236
1237 if (fe->statusbar != NULL)
1238 SetWindowPos(fe->statusbar, NULL, 0, y, x,
1239 sr.bottom - sr.top, SWP_NOZORDER);
1240
1241 DeleteObject(fe->bitmap);
1242
1243 hdc = GetDC(fe->hwnd);
1244 fe->bitmap = CreateCompatibleBitmap(hdc, x, y);
1245 ReleaseDC(fe->hwnd, hdc);
1246
1247 midend_redraw(fe->me);
1248 }
1249
1250 static int is_alt_pressed(void)
1251 {
1252 BYTE keystate[256];
1253 int r = GetKeyboardState(keystate);
1254 if (!r)
1255 return FALSE;
1256 if (keystate[VK_MENU] & 0x80)
1257 return TRUE;
1258 if (keystate[VK_RMENU] & 0x80)
1259 return TRUE;
1260 return FALSE;
1261 }
1262
1263 static LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
1264 WPARAM wParam, LPARAM lParam)
1265 {
1266 frontend *fe = (frontend *)GetWindowLong(hwnd, GWL_USERDATA);
1267
1268 switch (message) {
1269 case WM_CLOSE:
1270 DestroyWindow(hwnd);
1271 return 0;
1272 case WM_COMMAND:
1273 switch (wParam & ~0xF) { /* low 4 bits reserved to Windows */
1274 case IDM_NEW:
1275 if (!midend_process_key(fe->me, 0, 0, 'n'))
1276 PostQuitMessage(0);
1277 break;
1278 case IDM_RESTART:
1279 midend_restart_game(fe->me);
1280 break;
1281 case IDM_UNDO:
1282 if (!midend_process_key(fe->me, 0, 0, 'u'))
1283 PostQuitMessage(0);
1284 break;
1285 case IDM_REDO:
1286 if (!midend_process_key(fe->me, 0, 0, '\x12'))
1287 PostQuitMessage(0);
1288 break;
1289 case IDM_COPY:
1290 {
1291 char *text = midend_text_format(fe->me);
1292 if (text)
1293 write_clip(hwnd, text);
1294 else
1295 MessageBeep(MB_ICONWARNING);
1296 sfree(text);
1297 }
1298 break;
1299 case IDM_SOLVE:
1300 {
1301 char *msg = midend_solve(fe->me);
1302 if (msg)
1303 MessageBox(hwnd, msg, "Unable to solve",
1304 MB_ICONERROR | MB_OK);
1305 }
1306 break;
1307 case IDM_QUIT:
1308 if (!midend_process_key(fe->me, 0, 0, 'q'))
1309 PostQuitMessage(0);
1310 break;
1311 case IDM_CONFIG:
1312 if (get_config(fe, CFG_SETTINGS))
1313 new_game_type(fe);
1314 break;
1315 case IDM_SEED:
1316 if (get_config(fe, CFG_SEED))
1317 new_game_type(fe);
1318 break;
1319 case IDM_DESC:
1320 if (get_config(fe, CFG_DESC))
1321 new_game_type(fe);
1322 break;
1323 case IDM_ABOUT:
1324 about(fe);
1325 break;
1326 case IDM_HELPC:
1327 assert(fe->help_path);
1328 WinHelp(hwnd, fe->help_path,
1329 fe->help_has_contents ? HELP_FINDER : HELP_CONTENTS, 0);
1330 break;
1331 case IDM_GAMEHELP:
1332 assert(fe->help_path);
1333 assert(thegame.winhelp_topic);
1334 {
1335 char *cmd = snewn(10+strlen(thegame.winhelp_topic), char);
1336 sprintf(cmd, "JI(`',`%s')", thegame.winhelp_topic);
1337 WinHelp(hwnd, fe->help_path, HELP_COMMAND, (DWORD)cmd);
1338 sfree(cmd);
1339 }
1340 break;
1341 default:
1342 {
1343 int p = ((wParam &~ 0xF) - IDM_PRESETS) / 0x10;
1344
1345 if (p >= 0 && p < fe->npresets) {
1346 midend_set_params(fe->me, fe->presets[p]);
1347 new_game_type(fe);
1348 }
1349 }
1350 break;
1351 }
1352 break;
1353 case WM_DESTROY:
1354 PostQuitMessage(0);
1355 return 0;
1356 case WM_PAINT:
1357 {
1358 PAINTSTRUCT p;
1359 HDC hdc, hdc2;
1360 HBITMAP prevbm;
1361
1362 hdc = BeginPaint(hwnd, &p);
1363 hdc2 = CreateCompatibleDC(hdc);
1364 prevbm = SelectObject(hdc2, fe->bitmap);
1365 BitBlt(hdc,
1366 p.rcPaint.left, p.rcPaint.top,
1367 p.rcPaint.right - p.rcPaint.left,
1368 p.rcPaint.bottom - p.rcPaint.top,
1369 hdc2,
1370 p.rcPaint.left, p.rcPaint.top,
1371 SRCCOPY);
1372 SelectObject(hdc2, prevbm);
1373 DeleteDC(hdc2);
1374 EndPaint(hwnd, &p);
1375 }
1376 return 0;
1377 case WM_KEYDOWN:
1378 {
1379 int key = -1;
1380 BYTE keystate[256];
1381 int r = GetKeyboardState(keystate);
1382 int shift = (r && (keystate[VK_SHIFT] & 0x80)) ? MOD_SHFT : 0;
1383 int ctrl = (r && (keystate[VK_CONTROL] & 0x80)) ? MOD_CTRL : 0;
1384
1385 switch (wParam) {
1386 case VK_LEFT:
1387 if (!(lParam & 0x01000000))
1388 key = MOD_NUM_KEYPAD | '4';
1389 else
1390 key = shift | ctrl | CURSOR_LEFT;
1391 break;
1392 case VK_RIGHT:
1393 if (!(lParam & 0x01000000))
1394 key = MOD_NUM_KEYPAD | '6';
1395 else
1396 key = shift | ctrl | CURSOR_RIGHT;
1397 break;
1398 case VK_UP:
1399 if (!(lParam & 0x01000000))
1400 key = MOD_NUM_KEYPAD | '8';
1401 else
1402 key = shift | ctrl | CURSOR_UP;
1403 break;
1404 case VK_DOWN:
1405 if (!(lParam & 0x01000000))
1406 key = MOD_NUM_KEYPAD | '2';
1407 else
1408 key = shift | ctrl | CURSOR_DOWN;
1409 break;
1410 /*
1411 * Diagonal keys on the numeric keypad.
1412 */
1413 case VK_PRIOR:
1414 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '9';
1415 break;
1416 case VK_NEXT:
1417 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '3';
1418 break;
1419 case VK_HOME:
1420 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '7';
1421 break;
1422 case VK_END:
1423 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '1';
1424 break;
1425 case VK_INSERT:
1426 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '0';
1427 break;
1428 case VK_CLEAR:
1429 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '5';
1430 break;
1431 /*
1432 * Numeric keypad keys with Num Lock on.
1433 */
1434 case VK_NUMPAD4: key = MOD_NUM_KEYPAD | '4'; break;
1435 case VK_NUMPAD6: key = MOD_NUM_KEYPAD | '6'; break;
1436 case VK_NUMPAD8: key = MOD_NUM_KEYPAD | '8'; break;
1437 case VK_NUMPAD2: key = MOD_NUM_KEYPAD | '2'; break;
1438 case VK_NUMPAD5: key = MOD_NUM_KEYPAD | '5'; break;
1439 case VK_NUMPAD9: key = MOD_NUM_KEYPAD | '9'; break;
1440 case VK_NUMPAD3: key = MOD_NUM_KEYPAD | '3'; break;
1441 case VK_NUMPAD7: key = MOD_NUM_KEYPAD | '7'; break;
1442 case VK_NUMPAD1: key = MOD_NUM_KEYPAD | '1'; break;
1443 case VK_NUMPAD0: key = MOD_NUM_KEYPAD | '0'; break;
1444 }
1445
1446 if (key != -1) {
1447 if (!midend_process_key(fe->me, 0, 0, key))
1448 PostQuitMessage(0);
1449 } else {
1450 MSG m;
1451 m.hwnd = hwnd;
1452 m.message = WM_KEYDOWN;
1453 m.wParam = wParam;
1454 m.lParam = lParam & 0xdfff;
1455 TranslateMessage(&m);
1456 }
1457 }
1458 break;
1459 case WM_LBUTTONDOWN:
1460 case WM_RBUTTONDOWN:
1461 case WM_MBUTTONDOWN:
1462 {
1463 int button;
1464
1465 /*
1466 * Shift-clicks count as middle-clicks, since otherwise
1467 * two-button Windows users won't have any kind of
1468 * middle click to use.
1469 */
1470 if (message == WM_MBUTTONDOWN || (wParam & MK_SHIFT))
1471 button = MIDDLE_BUTTON;
1472 else if (message == WM_RBUTTONDOWN || is_alt_pressed())
1473 button = RIGHT_BUTTON;
1474 else
1475 button = LEFT_BUTTON;
1476
1477 if (!midend_process_key(fe->me, (signed short)LOWORD(lParam),
1478 (signed short)HIWORD(lParam), button))
1479 PostQuitMessage(0);
1480
1481 SetCapture(hwnd);
1482 }
1483 break;
1484 case WM_LBUTTONUP:
1485 case WM_RBUTTONUP:
1486 case WM_MBUTTONUP:
1487 {
1488 int button;
1489
1490 /*
1491 * Shift-clicks count as middle-clicks, since otherwise
1492 * two-button Windows users won't have any kind of
1493 * middle click to use.
1494 */
1495 if (message == WM_MBUTTONUP || (wParam & MK_SHIFT))
1496 button = MIDDLE_RELEASE;
1497 else if (message == WM_RBUTTONUP || is_alt_pressed())
1498 button = RIGHT_RELEASE;
1499 else
1500 button = LEFT_RELEASE;
1501
1502 if (!midend_process_key(fe->me, (signed short)LOWORD(lParam),
1503 (signed short)HIWORD(lParam), button))
1504 PostQuitMessage(0);
1505
1506 ReleaseCapture();
1507 }
1508 break;
1509 case WM_MOUSEMOVE:
1510 {
1511 int button;
1512
1513 if (wParam & (MK_MBUTTON | MK_SHIFT))
1514 button = MIDDLE_DRAG;
1515 else if (wParam & MK_RBUTTON || is_alt_pressed())
1516 button = RIGHT_DRAG;
1517 else
1518 button = LEFT_DRAG;
1519
1520 if (!midend_process_key(fe->me, (signed short)LOWORD(lParam),
1521 (signed short)HIWORD(lParam), button))
1522 PostQuitMessage(0);
1523 }
1524 break;
1525 case WM_CHAR:
1526 if (!midend_process_key(fe->me, 0, 0, (unsigned char)wParam))
1527 PostQuitMessage(0);
1528 return 0;
1529 case WM_TIMER:
1530 if (fe->timer) {
1531 DWORD now = GetTickCount();
1532 float elapsed = (float) (now - fe->timer_last_tickcount) * 0.001F;
1533 midend_timer(fe->me, elapsed);
1534 fe->timer_last_tickcount = now;
1535 }
1536 return 0;
1537 }
1538
1539 return DefWindowProc(hwnd, message, wParam, lParam);
1540 }
1541
1542 int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show)
1543 {
1544 MSG msg;
1545 char *error;
1546
1547 InitCommonControls();
1548
1549 if (!prev) {
1550 WNDCLASS wndclass;
1551
1552 wndclass.style = 0;
1553 wndclass.lpfnWndProc = WndProc;
1554 wndclass.cbClsExtra = 0;
1555 wndclass.cbWndExtra = 0;
1556 wndclass.hInstance = inst;
1557 wndclass.hIcon = LoadIcon(inst, IDI_APPLICATION);
1558 wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
1559 wndclass.hbrBackground = NULL;
1560 wndclass.lpszMenuName = NULL;
1561 wndclass.lpszClassName = thegame.name;
1562
1563 RegisterClass(&wndclass);
1564 }
1565
1566 while (*cmdline && isspace(*cmdline))
1567 cmdline++;
1568
1569 if (!new_window(inst, *cmdline ? cmdline : NULL, &error)) {
1570 char buf[128];
1571 sprintf(buf, "%.100s Error", thegame.name);
1572 MessageBox(NULL, error, buf, MB_OK|MB_ICONERROR);
1573 return 1;
1574 }
1575
1576 while (GetMessage(&msg, NULL, 0, 0)) {
1577 DispatchMessage(&msg);
1578 }
1579
1580 return msg.wParam;
1581 }
Simon Tatham's portable puzzles collection; import of svn://svn.tartarus.org/sgt/puzzles