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Minor const fix.
[sgt/puzzles] / windows.c
1 /*
2 * windows.c: Windows front end for my puzzle collection.
3 */
4
5 #include <windows.h>
6 #include <commctrl.h>
7 #include <htmlhelp.h>
8
9 #include <stdio.h>
10 #include <assert.h>
11 #include <ctype.h>
12 #include <stdarg.h>
13 #include <stdlib.h>
14 #include <limits.h>
15 #include <time.h>
16
17 #include "puzzles.h"
18
19 #define IDM_NEW 0x0010
20 #define IDM_RESTART 0x0020
21 #define IDM_UNDO 0x0030
22 #define IDM_REDO 0x0040
23 #define IDM_COPY 0x0050
24 #define IDM_SOLVE 0x0060
25 #define IDM_QUIT 0x0070
26 #define IDM_CONFIG 0x0080
27 #define IDM_DESC 0x0090
28 #define IDM_SEED 0x00A0
29 #define IDM_HELPC 0x00B0
30 #define IDM_GAMEHELP 0x00C0
31 #define IDM_ABOUT 0x00D0
32 #define IDM_SAVE 0x00E0
33 #define IDM_LOAD 0x00F0
34 #define IDM_PRINT 0x0100
35 #define IDM_PRESETS 0x0110
36
37 #define HELP_FILE_NAME "puzzles.hlp"
38 #define HELP_CNT_NAME "puzzles.cnt"
39 #define CHM_FILE_NAME "puzzles.chm"
40
41 typedef HWND (CALLBACK *htmlhelp_t)(HWND, LPCSTR, UINT, DWORD);
42 static DWORD html_help_cookie;
43 static htmlhelp_t htmlhelp;
44 static HINSTANCE hh_dll;
45 enum { NONE, HLP, CHM } help_type;
46 char *help_path;
47 const char *help_topic;
48 int help_has_contents;
49
50 #ifdef DEBUGGING
51 static FILE *debug_fp = NULL;
52 static HANDLE debug_hdl = INVALID_HANDLE_VALUE;
53 static int debug_got_console = 0;
54
55 void dputs(char *buf)
56 {
57 DWORD dw;
58
59 if (!debug_got_console) {
60 if (AllocConsole()) {
61 debug_got_console = 1;
62 debug_hdl = GetStdHandle(STD_OUTPUT_HANDLE);
63 }
64 }
65 if (!debug_fp) {
66 debug_fp = fopen("debug.log", "w");
67 }
68
69 if (debug_hdl != INVALID_HANDLE_VALUE) {
70 WriteFile(debug_hdl, buf, strlen(buf), &dw, NULL);
71 }
72 fputs(buf, debug_fp);
73 fflush(debug_fp);
74 }
75
76 void debug_printf(char *fmt, ...)
77 {
78 char buf[4096];
79 va_list ap;
80
81 va_start(ap, fmt);
82 vsprintf(buf, fmt, ap);
83 dputs(buf);
84 va_end(ap);
85 }
86 #endif
87
88 #define WINFLAGS (WS_OVERLAPPEDWINDOW &~ \
89 (WS_THICKFRAME | WS_MAXIMIZEBOX | WS_OVERLAPPED))
90
91 static void new_game_size(frontend *fe);
92
93 struct font {
94 HFONT font;
95 int type;
96 int size;
97 };
98
99 struct cfg_aux {
100 int ctlid;
101 };
102
103 struct blitter {
104 HBITMAP bitmap;
105 frontend *fe;
106 int x, y, w, h;
107 };
108
109 enum { CFG_PRINT = CFG_FRONTEND_SPECIFIC };
110
111 struct frontend {
112 midend *me;
113 HWND hwnd, statusbar, cfgbox;
114 HINSTANCE inst;
115 HBITMAP bitmap, prevbm;
116 HDC hdc;
117 COLORREF *colours;
118 HBRUSH *brushes;
119 HPEN *pens;
120 HRGN clip;
121 UINT timer;
122 DWORD timer_last_tickcount;
123 int npresets;
124 game_params **presets;
125 struct font *fonts;
126 int nfonts, fontsize;
127 config_item *cfg;
128 struct cfg_aux *cfgaux;
129 int cfg_which, dlg_done;
130 HFONT cfgfont;
131 HBRUSH oldbr;
132 HPEN oldpen;
133 int help_running;
134 enum { DRAWING, PRINTING, NOTHING } drawstatus;
135 DOCINFO di;
136 int printcount, printw, printh, printsolns, printcurr, printcolour;
137 float printscale;
138 int printoffsetx, printoffsety;
139 float printpixelscale;
140 int fontstart;
141 int linewidth;
142 drawing *dr;
143 };
144
145 void fatal(char *fmt, ...)
146 {
147 char buf[2048];
148 va_list ap;
149
150 va_start(ap, fmt);
151 vsprintf(buf, fmt, ap);
152 va_end(ap);
153
154 MessageBox(NULL, buf, "Fatal error", MB_ICONEXCLAMATION | MB_OK);
155
156 exit(1);
157 }
158
159 char *geterrstr(void)
160 {
161 LPVOID lpMsgBuf;
162 DWORD dw = GetLastError();
163 char *ret;
164
165 FormatMessage(
166 FORMAT_MESSAGE_ALLOCATE_BUFFER |
167 FORMAT_MESSAGE_FROM_SYSTEM,
168 NULL,
169 dw,
170 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
171 (LPTSTR) &lpMsgBuf,
172 0, NULL );
173
174 ret = dupstr(lpMsgBuf);
175
176 LocalFree(lpMsgBuf);
177
178 return ret;
179 }
180
181 void get_random_seed(void **randseed, int *randseedsize)
182 {
183 time_t *tp = snew(time_t);
184 time(tp);
185 *randseed = (void *)tp;
186 *randseedsize = sizeof(time_t);
187 }
188
189 static void win_status_bar(void *handle, char *text)
190 {
191 frontend *fe = (frontend *)handle;
192
193 SetWindowText(fe->statusbar, text);
194 }
195
196 static blitter *win_blitter_new(void *handle, int w, int h)
197 {
198 blitter *bl = snew(blitter);
199
200 memset(bl, 0, sizeof(blitter));
201 bl->w = w;
202 bl->h = h;
203 bl->bitmap = 0;
204
205 return bl;
206 }
207
208 static void win_blitter_free(void *handle, blitter *bl)
209 {
210 if (bl->bitmap) DeleteObject(bl->bitmap);
211 sfree(bl);
212 }
213
214 static void blitter_mkbitmap(frontend *fe, blitter *bl)
215 {
216 HDC hdc = GetDC(fe->hwnd);
217 bl->bitmap = CreateCompatibleBitmap(hdc, bl->w, bl->h);
218 ReleaseDC(fe->hwnd, hdc);
219 }
220
221 /* BitBlt(dstDC, dstX, dstY, dstW, dstH, srcDC, srcX, srcY, dType) */
222
223 static void win_blitter_save(void *handle, blitter *bl, int x, int y)
224 {
225 frontend *fe = (frontend *)handle;
226 HDC hdc_win, hdc_blit;
227 HBITMAP prev_blit;
228
229 assert(fe->drawstatus == DRAWING);
230
231 if (!bl->bitmap) blitter_mkbitmap(fe, bl);
232
233 bl->x = x; bl->y = y;
234
235 hdc_win = GetDC(fe->hwnd);
236 hdc_blit = CreateCompatibleDC(hdc_win);
237 if (!hdc_blit) fatal("hdc_blit failed: 0x%x", GetLastError());
238
239 prev_blit = SelectObject(hdc_blit, bl->bitmap);
240 if (prev_blit == NULL || prev_blit == HGDI_ERROR)
241 fatal("SelectObject for hdc_main failed: 0x%x", GetLastError());
242
243 if (!BitBlt(hdc_blit, 0, 0, bl->w, bl->h,
244 fe->hdc, x, y, SRCCOPY))
245 fatal("BitBlt failed: 0x%x", GetLastError());
246
247 SelectObject(hdc_blit, prev_blit);
248 DeleteDC(hdc_blit);
249 ReleaseDC(fe->hwnd, hdc_win);
250 }
251
252 static void win_blitter_load(void *handle, blitter *bl, int x, int y)
253 {
254 frontend *fe = (frontend *)handle;
255 HDC hdc_win, hdc_blit;
256 HBITMAP prev_blit;
257
258 assert(fe->drawstatus == DRAWING);
259
260 assert(bl->bitmap); /* we should always have saved before loading */
261
262 if (x == BLITTER_FROMSAVED) x = bl->x;
263 if (y == BLITTER_FROMSAVED) y = bl->y;
264
265 hdc_win = GetDC(fe->hwnd);
266 hdc_blit = CreateCompatibleDC(hdc_win);
267
268 prev_blit = SelectObject(hdc_blit, bl->bitmap);
269
270 BitBlt(fe->hdc, x, y, bl->w, bl->h,
271 hdc_blit, 0, 0, SRCCOPY);
272
273 SelectObject(hdc_blit, prev_blit);
274 DeleteDC(hdc_blit);
275 ReleaseDC(fe->hwnd, hdc_win);
276 }
277
278 void frontend_default_colour(frontend *fe, float *output)
279 {
280 DWORD c = GetSysColor(COLOR_MENU); /* ick */
281
282 output[0] = (float)(GetRValue(c) / 255.0);
283 output[1] = (float)(GetGValue(c) / 255.0);
284 output[2] = (float)(GetBValue(c) / 255.0);
285 }
286
287 static POINT win_transform_point(frontend *fe, int x, int y)
288 {
289 POINT ret;
290
291 assert(fe->drawstatus != NOTHING);
292
293 if (fe->drawstatus == PRINTING) {
294 ret.x = (int)(fe->printoffsetx + fe->printpixelscale * x);
295 ret.y = (int)(fe->printoffsety + fe->printpixelscale * y);
296 } else {
297 ret.x = x;
298 ret.y = y;
299 }
300
301 return ret;
302 }
303
304 static void win_text_colour(frontend *fe, int colour)
305 {
306 assert(fe->drawstatus != NOTHING);
307
308 if (fe->drawstatus == PRINTING) {
309 int hatch;
310 float r, g, b;
311 print_get_colour(fe->dr, colour, &hatch, &r, &g, &b);
312 if (fe->printcolour)
313 SetTextColor(fe->hdc, RGB(r * 255, g * 255, b * 255));
314 else
315 SetTextColor(fe->hdc,
316 hatch == HATCH_CLEAR ? RGB(255,255,255) : RGB(0,0,0));
317 } else {
318 SetTextColor(fe->hdc, fe->colours[colour]);
319 }
320 }
321
322 static void win_set_brush(frontend *fe, int colour)
323 {
324 HBRUSH br;
325 assert(fe->drawstatus != NOTHING);
326
327 if (fe->drawstatus == PRINTING) {
328 int hatch;
329 float r, g, b;
330 print_get_colour(fe->dr, colour, &hatch, &r, &g, &b);
331
332 if (fe->printcolour)
333 br = CreateSolidBrush(RGB(r * 255, g * 255, b * 255));
334 else if (hatch == HATCH_SOLID)
335 br = CreateSolidBrush(RGB(0,0,0));
336 else if (hatch == HATCH_CLEAR)
337 br = CreateSolidBrush(RGB(255,255,255));
338 else
339 br = CreateHatchBrush(hatch == HATCH_BACKSLASH ? HS_FDIAGONAL :
340 hatch == HATCH_SLASH ? HS_BDIAGONAL :
341 hatch == HATCH_HORIZ ? HS_HORIZONTAL :
342 hatch == HATCH_VERT ? HS_VERTICAL :
343 hatch == HATCH_PLUS ? HS_CROSS :
344 /* hatch == HATCH_X ? */ HS_DIAGCROSS,
345 RGB(0,0,0));
346 } else {
347 br = fe->brushes[colour];
348 }
349 fe->oldbr = SelectObject(fe->hdc, br);
350 }
351
352 static void win_reset_brush(frontend *fe)
353 {
354 HBRUSH br;
355
356 assert(fe->drawstatus != NOTHING);
357
358 br = SelectObject(fe->hdc, fe->oldbr);
359 if (fe->drawstatus == PRINTING)
360 DeleteObject(br);
361 }
362
363 static void win_set_pen(frontend *fe, int colour, int thin)
364 {
365 HPEN pen;
366 assert(fe->drawstatus != NOTHING);
367
368 if (fe->drawstatus == PRINTING) {
369 int hatch;
370 float r, g, b;
371 int width = thin ? 0 : fe->linewidth;
372
373 print_get_colour(fe->dr, colour, &hatch, &r, &g, &b);
374 if (fe->printcolour)
375 pen = CreatePen(PS_SOLID, width,
376 RGB(r * 255, g * 255, b * 255));
377 else if (hatch == HATCH_SOLID)
378 pen = CreatePen(PS_SOLID, width, RGB(0, 0, 0));
379 else if (hatch == HATCH_CLEAR)
380 pen = CreatePen(PS_SOLID, width, RGB(255,255,255));
381 else {
382 assert(!"This shouldn't happen");
383 pen = CreatePen(PS_SOLID, 1, RGB(0, 0, 0));
384 }
385 } else {
386 pen = fe->pens[colour];
387 }
388 fe->oldpen = SelectObject(fe->hdc, pen);
389 }
390
391 static void win_reset_pen(frontend *fe)
392 {
393 HPEN pen;
394
395 assert(fe->drawstatus != NOTHING);
396
397 pen = SelectObject(fe->hdc, fe->oldpen);
398 if (fe->drawstatus == PRINTING)
399 DeleteObject(pen);
400 }
401
402 static void win_clip(void *handle, int x, int y, int w, int h)
403 {
404 frontend *fe = (frontend *)handle;
405 POINT p, q;
406
407 if (fe->drawstatus == NOTHING)
408 return;
409
410 p = win_transform_point(fe, x, y);
411 q = win_transform_point(fe, x+w, y+h);
412 IntersectClipRect(fe->hdc, p.x, p.y, q.x, q.y);
413 }
414
415 static void win_unclip(void *handle)
416 {
417 frontend *fe = (frontend *)handle;
418
419 if (fe->drawstatus == NOTHING)
420 return;
421
422 SelectClipRgn(fe->hdc, NULL);
423 }
424
425 static void win_draw_text(void *handle, int x, int y, int fonttype,
426 int fontsize, int align, int colour, char *text)
427 {
428 frontend *fe = (frontend *)handle;
429 POINT xy;
430 int i;
431
432 if (fe->drawstatus == NOTHING)
433 return;
434
435 if (fe->drawstatus == PRINTING)
436 fontsize = (int)(fontsize * fe->printpixelscale);
437
438 xy = win_transform_point(fe, x, y);
439
440 /*
441 * Find or create the font.
442 */
443 for (i = fe->fontstart; i < fe->nfonts; i++)
444 if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
445 break;
446
447 if (i == fe->nfonts) {
448 if (fe->fontsize <= fe->nfonts) {
449 fe->fontsize = fe->nfonts + 10;
450 fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
451 }
452
453 fe->nfonts++;
454
455 fe->fonts[i].type = fonttype;
456 fe->fonts[i].size = fontsize;
457
458 fe->fonts[i].font = CreateFont(-fontsize, 0, 0, 0,
459 fe->drawstatus == PRINTING ? 0 : FW_BOLD,
460 FALSE, FALSE, FALSE, DEFAULT_CHARSET,
461 OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
462 DEFAULT_QUALITY,
463 (fonttype == FONT_FIXED ?
464 FIXED_PITCH | FF_DONTCARE :
465 VARIABLE_PITCH | FF_SWISS),
466 NULL);
467 }
468
469 /*
470 * Position and draw the text.
471 */
472 {
473 HFONT oldfont;
474 TEXTMETRIC tm;
475 SIZE size;
476
477 oldfont = SelectObject(fe->hdc, fe->fonts[i].font);
478 if (GetTextMetrics(fe->hdc, &tm)) {
479 if (align & ALIGN_VCENTRE)
480 xy.y -= (tm.tmAscent+tm.tmDescent)/2;
481 else
482 xy.y -= tm.tmAscent;
483 }
484 if (GetTextExtentPoint32(fe->hdc, text, strlen(text), &size)) {
485 if (align & ALIGN_HCENTRE)
486 xy.x -= size.cx / 2;
487 else if (align & ALIGN_HRIGHT)
488 xy.x -= size.cx;
489 }
490 SetBkMode(fe->hdc, TRANSPARENT);
491 win_text_colour(fe, colour);
492 TextOut(fe->hdc, xy.x, xy.y, text, strlen(text));
493 SelectObject(fe->hdc, oldfont);
494 }
495 }
496
497 static void win_draw_rect(void *handle, int x, int y, int w, int h, int colour)
498 {
499 frontend *fe = (frontend *)handle;
500 POINT p, q;
501
502 if (fe->drawstatus == NOTHING)
503 return;
504
505 if (fe->drawstatus == DRAWING && w == 1 && h == 1) {
506 /*
507 * Rectangle() appears to get uppity if asked to draw a 1x1
508 * rectangle, presumably on the grounds that that's beneath
509 * its dignity and you ought to be using SetPixel instead.
510 * So I will.
511 */
512 SetPixel(fe->hdc, x, y, fe->colours[colour]);
513 } else {
514 win_set_brush(fe, colour);
515 win_set_pen(fe, colour, TRUE);
516 p = win_transform_point(fe, x, y);
517 q = win_transform_point(fe, x+w, y+h);
518 Rectangle(fe->hdc, p.x, p.y, q.x, q.y);
519 win_reset_brush(fe);
520 win_reset_pen(fe);
521 }
522 }
523
524 static void win_draw_line(void *handle, int x1, int y1, int x2, int y2, int colour)
525 {
526 frontend *fe = (frontend *)handle;
527 POINT p, q;
528
529 if (fe->drawstatus == NOTHING)
530 return;
531
532 win_set_pen(fe, colour, FALSE);
533 p = win_transform_point(fe, x1, y1);
534 q = win_transform_point(fe, x2, y2);
535 MoveToEx(fe->hdc, p.x, p.y, NULL);
536 LineTo(fe->hdc, q.x, q.y);
537 if (fe->drawstatus == DRAWING)
538 SetPixel(fe->hdc, q.x, q.y, fe->colours[colour]);
539 win_reset_pen(fe);
540 }
541
542 static void win_draw_circle(void *handle, int cx, int cy, int radius,
543 int fillcolour, int outlinecolour)
544 {
545 frontend *fe = (frontend *)handle;
546 POINT p, q, r;
547
548 assert(outlinecolour >= 0);
549
550 if (fe->drawstatus == NOTHING)
551 return;
552
553 if (fillcolour >= 0) {
554 win_set_brush(fe, fillcolour);
555 win_set_pen(fe, outlinecolour, FALSE);
556 p = win_transform_point(fe, cx - radius, cy - radius);
557 q = win_transform_point(fe, cx + radius, cy + radius);
558 Ellipse(fe->hdc, p.x, p.y, q.x+1, q.y+1);
559 win_reset_brush(fe);
560 win_reset_pen(fe);
561 } else {
562 win_set_pen(fe, outlinecolour, FALSE);
563 p = win_transform_point(fe, cx - radius, cy - radius);
564 q = win_transform_point(fe, cx + radius, cy + radius);
565 r = win_transform_point(fe, cx - radius, cy);
566 Arc(fe->hdc, p.x, p.y, q.x+1, q.y+1, r.x, r.y, r.x, r.y);
567 win_reset_pen(fe);
568 }
569 }
570
571 static void win_draw_polygon(void *handle, int *coords, int npoints,
572 int fillcolour, int outlinecolour)
573 {
574 frontend *fe = (frontend *)handle;
575 POINT *pts;
576 int i;
577
578 if (fe->drawstatus == NOTHING)
579 return;
580
581 pts = snewn(npoints+1, POINT);
582
583 for (i = 0; i <= npoints; i++) {
584 int j = (i < npoints ? i : 0);
585 pts[i] = win_transform_point(fe, coords[j*2], coords[j*2+1]);
586 }
587
588 assert(outlinecolour >= 0);
589
590 if (fillcolour >= 0) {
591 win_set_brush(fe, fillcolour);
592 win_set_pen(fe, outlinecolour, FALSE);
593 Polygon(fe->hdc, pts, npoints);
594 win_reset_brush(fe);
595 win_reset_pen(fe);
596 } else {
597 win_set_pen(fe, outlinecolour, FALSE);
598 Polyline(fe->hdc, pts, npoints+1);
599 win_reset_pen(fe);
600 }
601
602 sfree(pts);
603 }
604
605 static void win_start_draw(void *handle)
606 {
607 frontend *fe = (frontend *)handle;
608 HDC hdc_win;
609
610 assert(fe->drawstatus == NOTHING);
611
612 hdc_win = GetDC(fe->hwnd);
613 fe->hdc = CreateCompatibleDC(hdc_win);
614 fe->prevbm = SelectObject(fe->hdc, fe->bitmap);
615 ReleaseDC(fe->hwnd, hdc_win);
616 fe->clip = NULL;
617 SetMapMode(fe->hdc, MM_TEXT);
618 fe->drawstatus = DRAWING;
619 }
620
621 static void win_draw_update(void *handle, int x, int y, int w, int h)
622 {
623 frontend *fe = (frontend *)handle;
624 RECT r;
625
626 if (fe->drawstatus != DRAWING)
627 return;
628
629 r.left = x;
630 r.top = y;
631 r.right = x + w;
632 r.bottom = y + h;
633
634 InvalidateRect(fe->hwnd, &r, FALSE);
635 }
636
637 static void win_end_draw(void *handle)
638 {
639 frontend *fe = (frontend *)handle;
640 assert(fe->drawstatus == DRAWING);
641 SelectObject(fe->hdc, fe->prevbm);
642 DeleteDC(fe->hdc);
643 if (fe->clip) {
644 DeleteObject(fe->clip);
645 fe->clip = NULL;
646 }
647 fe->drawstatus = NOTHING;
648 }
649
650 static void win_line_width(void *handle, float width)
651 {
652 frontend *fe = (frontend *)handle;
653
654 assert(fe->drawstatus != DRAWING);
655 if (fe->drawstatus == NOTHING)
656 return;
657
658 fe->linewidth = (int)(width * fe->printpixelscale);
659 }
660
661 static void win_begin_doc(void *handle, int pages)
662 {
663 frontend *fe = (frontend *)handle;
664
665 assert(fe->drawstatus != DRAWING);
666 if (fe->drawstatus == NOTHING)
667 return;
668
669 if (StartDoc(fe->hdc, &fe->di) <= 0) {
670 char *e = geterrstr();
671 MessageBox(fe->hwnd, e, "Error starting to print",
672 MB_ICONERROR | MB_OK);
673 sfree(e);
674 fe->drawstatus = NOTHING;
675 }
676
677 /*
678 * Push a marker on the font stack so that we won't use the
679 * same fonts for printing and drawing. (This is because
680 * drawing seems to look generally better in bold, but printing
681 * is better not in bold.)
682 */
683 fe->fontstart = fe->nfonts;
684 }
685
686 static void win_begin_page(void *handle, int number)
687 {
688 frontend *fe = (frontend *)handle;
689
690 assert(fe->drawstatus != DRAWING);
691 if (fe->drawstatus == NOTHING)
692 return;
693
694 if (StartPage(fe->hdc) <= 0) {
695 char *e = geterrstr();
696 MessageBox(fe->hwnd, e, "Error starting a page",
697 MB_ICONERROR | MB_OK);
698 sfree(e);
699 fe->drawstatus = NOTHING;
700 }
701 }
702
703 static void win_begin_puzzle(void *handle, float xm, float xc,
704 float ym, float yc, int pw, int ph, float wmm)
705 {
706 frontend *fe = (frontend *)handle;
707 int ppw, pph, pox, poy;
708 float mmpw, mmph, mmox, mmoy;
709 float scale;
710
711 assert(fe->drawstatus != DRAWING);
712 if (fe->drawstatus == NOTHING)
713 return;
714
715 ppw = GetDeviceCaps(fe->hdc, HORZRES);
716 pph = GetDeviceCaps(fe->hdc, VERTRES);
717 mmpw = (float)GetDeviceCaps(fe->hdc, HORZSIZE);
718 mmph = (float)GetDeviceCaps(fe->hdc, VERTSIZE);
719
720 /*
721 * Compute the puzzle's position on the logical page.
722 */
723 mmox = xm * mmpw + xc;
724 mmoy = ym * mmph + yc;
725
726 /*
727 * Work out what that comes to in pixels.
728 */
729 pox = (int)(mmox * (float)ppw / mmpw);
730 poy = (int)(mmoy * (float)ppw / mmpw);
731
732 /*
733 * And determine the scale.
734 *
735 * I need a scale such that the maximum puzzle-coordinate
736 * extent of the rectangle (pw * scale) is equal to the pixel
737 * equivalent of the puzzle's millimetre width (wmm * ppw /
738 * mmpw).
739 */
740 scale = (wmm * ppw) / (mmpw * pw);
741
742 /*
743 * Now store pox, poy and scale for use in the main drawing
744 * functions.
745 */
746 fe->printoffsetx = pox;
747 fe->printoffsety = poy;
748 fe->printpixelscale = scale;
749
750 fe->linewidth = 1;
751 }
752
753 static void win_end_puzzle(void *handle)
754 {
755 /* Nothing needs to be done here. */
756 }
757
758 static void win_end_page(void *handle, int number)
759 {
760 frontend *fe = (frontend *)handle;
761
762 assert(fe->drawstatus != DRAWING);
763
764 if (fe->drawstatus == NOTHING)
765 return;
766
767 if (EndPage(fe->hdc) <= 0) {
768 char *e = geterrstr();
769 MessageBox(fe->hwnd, e, "Error finishing a page",
770 MB_ICONERROR | MB_OK);
771 sfree(e);
772 fe->drawstatus = NOTHING;
773 }
774 }
775
776 static void win_end_doc(void *handle)
777 {
778 frontend *fe = (frontend *)handle;
779
780 assert(fe->drawstatus != DRAWING);
781
782 /*
783 * Free all the fonts created since we began printing.
784 */
785 while (fe->nfonts > fe->fontstart) {
786 fe->nfonts--;
787 DeleteObject(fe->fonts[fe->nfonts].font);
788 }
789 fe->fontstart = 0;
790
791 /*
792 * The MSDN web site sample code doesn't bother to call EndDoc
793 * if an error occurs half way through printing. I expect doing
794 * so would cause the erroneous document to actually be
795 * printed, or something equally undesirable.
796 */
797 if (fe->drawstatus == NOTHING)
798 return;
799
800 if (EndDoc(fe->hdc) <= 0) {
801 char *e = geterrstr();
802 MessageBox(fe->hwnd, e, "Error finishing printing",
803 MB_ICONERROR | MB_OK);
804 sfree(e);
805 fe->drawstatus = NOTHING;
806 }
807 }
808
809 const struct drawing_api win_drawing = {
810 win_draw_text,
811 win_draw_rect,
812 win_draw_line,
813 win_draw_polygon,
814 win_draw_circle,
815 win_draw_update,
816 win_clip,
817 win_unclip,
818 win_start_draw,
819 win_end_draw,
820 win_status_bar,
821 win_blitter_new,
822 win_blitter_free,
823 win_blitter_save,
824 win_blitter_load,
825 win_begin_doc,
826 win_begin_page,
827 win_begin_puzzle,
828 win_end_puzzle,
829 win_end_page,
830 win_end_doc,
831 win_line_width,
832 };
833
834 void print(frontend *fe)
835 {
836 PRINTDLG pd;
837 char doctitle[256];
838 document *doc;
839 midend *nme = NULL; /* non-interactive midend for bulk puzzle generation */
840 int i;
841 char *err = NULL;
842
843 /*
844 * Create our document structure and fill it up with puzzles.
845 */
846 doc = document_new(fe->printw, fe->printh, fe->printscale / 100.0F);
847 for (i = 0; i < fe->printcount; i++) {
848 if (i == 0 && fe->printcurr) {
849 err = midend_print_puzzle(fe->me, doc, fe->printsolns);
850 } else {
851 if (!nme) {
852 game_params *params;
853
854 nme = midend_new(NULL, &thegame, NULL, NULL);
855
856 /*
857 * Set the non-interactive mid-end to have the same
858 * parameters as the standard one.
859 */
860 params = midend_get_params(fe->me);
861 midend_set_params(nme, params);
862 thegame.free_params(params);
863 }
864
865 midend_new_game(nme);
866 err = midend_print_puzzle(nme, doc, fe->printsolns);
867 }
868 if (err)
869 break;
870 }
871 if (nme)
872 midend_free(nme);
873
874 if (err) {
875 MessageBox(fe->hwnd, err, "Error preparing puzzles for printing",
876 MB_ICONERROR | MB_OK);
877 document_free(doc);
878 return;
879 }
880
881 memset(&pd, 0, sizeof(pd));
882 pd.lStructSize = sizeof(pd);
883 pd.hwndOwner = fe->hwnd;
884 pd.hDevMode = NULL;
885 pd.hDevNames = NULL;
886 pd.Flags = PD_USEDEVMODECOPIESANDCOLLATE | PD_RETURNDC |
887 PD_NOPAGENUMS | PD_NOSELECTION;
888 pd.nCopies = 1;
889 pd.nFromPage = pd.nToPage = 0xFFFF;
890 pd.nMinPage = pd.nMaxPage = 1;
891
892 if (!PrintDlg(&pd)) {
893 document_free(doc);
894 return;
895 }
896
897 /*
898 * Now pd.hDC is a device context for the printer.
899 */
900
901 /*
902 * FIXME: IWBNI we put up an Abort box here.
903 */
904
905 memset(&fe->di, 0, sizeof(fe->di));
906 fe->di.cbSize = sizeof(fe->di);
907 sprintf(doctitle, "Printed puzzles from %s (from Simon Tatham's"
908 " Portable Puzzle Collection)", thegame.name);
909 fe->di.lpszDocName = doctitle;
910 fe->di.lpszOutput = NULL;
911 fe->di.lpszDatatype = NULL;
912 fe->di.fwType = 0;
913
914 fe->drawstatus = PRINTING;
915 fe->hdc = pd.hDC;
916
917 fe->dr = drawing_new(&win_drawing, NULL, fe);
918 document_print(doc, fe->dr);
919 drawing_free(fe->dr);
920 fe->dr = NULL;
921
922 fe->drawstatus = NOTHING;
923
924 DeleteDC(pd.hDC);
925 document_free(doc);
926 }
927
928 void deactivate_timer(frontend *fe)
929 {
930 if (!fe)
931 return; /* for non-interactive midend */
932 if (fe->hwnd) KillTimer(fe->hwnd, fe->timer);
933 fe->timer = 0;
934 }
935
936 void activate_timer(frontend *fe)
937 {
938 if (!fe)
939 return; /* for non-interactive midend */
940 if (!fe->timer) {
941 fe->timer = SetTimer(fe->hwnd, fe->timer, 20, NULL);
942 fe->timer_last_tickcount = GetTickCount();
943 }
944 }
945
946 void write_clip(HWND hwnd, char *data)
947 {
948 HGLOBAL clipdata;
949 int len, i, j;
950 char *data2;
951 void *lock;
952
953 /*
954 * Windows expects CRLF in the clipboard, so we must convert
955 * any \n that has come out of the puzzle backend.
956 */
957 len = 0;
958 for (i = 0; data[i]; i++) {
959 if (data[i] == '\n')
960 len++;
961 len++;
962 }
963 data2 = snewn(len+1, char);
964 j = 0;
965 for (i = 0; data[i]; i++) {
966 if (data[i] == '\n')
967 data2[j++] = '\r';
968 data2[j++] = data[i];
969 }
970 assert(j == len);
971 data2[j] = '\0';
972
973 clipdata = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, len + 1);
974 if (!clipdata)
975 return;
976 lock = GlobalLock(clipdata);
977 if (!lock)
978 return;
979 memcpy(lock, data2, len);
980 ((unsigned char *) lock)[len] = 0;
981 GlobalUnlock(clipdata);
982
983 if (OpenClipboard(hwnd)) {
984 EmptyClipboard();
985 SetClipboardData(CF_TEXT, clipdata);
986 CloseClipboard();
987 } else
988 GlobalFree(clipdata);
989
990 sfree(data2);
991 }
992
993 /*
994 * Set up Help and see if we can find a help file.
995 */
996 static void init_help(void)
997 {
998 char b[2048], *p, *q, *r;
999 FILE *fp;
1000
1001 /*
1002 * Find the executable file path, so we can look alongside
1003 * it for help files. Trim the filename off the end.
1004 */
1005 GetModuleFileName(NULL, b, sizeof(b) - 1);
1006 r = b;
1007 p = strrchr(b, '\\');
1008 if (p && p >= r) r = p+1;
1009 q = strrchr(b, ':');
1010 if (q && q >= r) r = q+1;
1011
1012 /*
1013 * Try HTML Help first.
1014 */
1015 strcpy(r, CHM_FILE_NAME);
1016 if ( (fp = fopen(b, "r")) != NULL) {
1017 fclose(fp);
1018
1019 /*
1020 * We have a .CHM. See if we can use it.
1021 */
1022 hh_dll = LoadLibrary("hhctrl.ocx");
1023 if (hh_dll) {
1024 htmlhelp = (htmlhelp_t)GetProcAddress(hh_dll, "HtmlHelpA");
1025 if (!htmlhelp)
1026 FreeLibrary(hh_dll);
1027 }
1028 if (htmlhelp) {
1029 htmlhelp(NULL, NULL, HH_INITIALIZE, (DWORD)&html_help_cookie);
1030 help_path = dupstr(b);
1031 help_type = CHM;
1032 help_topic = thegame.htmlhelp_topic;
1033 return;
1034 }
1035 }
1036
1037 /*
1038 * Now try old-style .HLP.
1039 */
1040 strcpy(r, HELP_FILE_NAME);
1041 if ( (fp = fopen(b, "r")) != NULL) {
1042 fclose(fp);
1043
1044 help_path = dupstr(b);
1045 help_type = HLP;
1046
1047 help_topic = thegame.winhelp_topic;
1048
1049 /*
1050 * See if there's a .CNT file alongside it.
1051 */
1052 strcpy(r, HELP_CNT_NAME);
1053 if ( (fp = fopen(b, "r")) != NULL) {
1054 fclose(fp);
1055 help_has_contents = TRUE;
1056 } else
1057 help_has_contents = FALSE;
1058
1059 return;
1060 }
1061
1062 help_type = NONE; /* didn't find any */
1063 }
1064
1065 /*
1066 * Start Help.
1067 */
1068 static void start_help(frontend *fe, const char *topic)
1069 {
1070 char *str = NULL;
1071 int cmd;
1072
1073 switch (help_type) {
1074 case HLP:
1075 assert(help_path);
1076 if (topic) {
1077 str = snewn(10+strlen(topic), char);
1078 sprintf(str, "JI(`',`%s')", topic);
1079 cmd = HELP_COMMAND;
1080 } else if (help_has_contents) {
1081 cmd = HELP_FINDER;
1082 } else {
1083 cmd = HELP_CONTENTS;
1084 }
1085 WinHelp(fe->hwnd, help_path, cmd, (DWORD)str);
1086 fe->help_running = TRUE;
1087 break;
1088 case CHM:
1089 assert(help_path);
1090 assert(htmlhelp);
1091 if (topic) {
1092 str = snewn(20 + strlen(topic) + strlen(help_path), char);
1093 sprintf(str, "%s::/%s.html>main", help_path, topic);
1094 } else {
1095 str = dupstr(help_path);
1096 }
1097 htmlhelp(fe->hwnd, str, HH_DISPLAY_TOPIC, 0);
1098 fe->help_running = TRUE;
1099 break;
1100 case NONE:
1101 assert(!"This shouldn't happen");
1102 break;
1103 }
1104
1105 sfree(str);
1106 }
1107
1108 /*
1109 * Stop Help on window cleanup.
1110 */
1111 static void stop_help(frontend *fe)
1112 {
1113 if (fe->help_running) {
1114 switch (help_type) {
1115 case HLP:
1116 WinHelp(fe->hwnd, help_path, HELP_QUIT, 0);
1117 break;
1118 case CHM:
1119 assert(htmlhelp);
1120 htmlhelp(NULL, NULL, HH_CLOSE_ALL, 0);
1121 break;
1122 case NONE:
1123 assert(!"This shouldn't happen");
1124 break;
1125 }
1126 fe->help_running = FALSE;
1127 }
1128 }
1129
1130 /*
1131 * Terminate Help on process exit.
1132 */
1133 static void cleanup_help(void)
1134 {
1135 if (help_type == CHM) {
1136 assert(htmlhelp);
1137 htmlhelp(NULL, NULL, HH_UNINITIALIZE, html_help_cookie);
1138 }
1139 }
1140
1141 static void check_window_size(frontend *fe, int *px, int *py)
1142 {
1143 RECT r;
1144 int x, y, sy;
1145
1146 if (fe->statusbar) {
1147 RECT sr;
1148 GetWindowRect(fe->statusbar, &sr);
1149 sy = sr.bottom - sr.top;
1150 } else {
1151 sy = 0;
1152 }
1153
1154 /*
1155 * See if we actually got the window size we wanted, and adjust
1156 * the puzzle size if not.
1157 */
1158 GetClientRect(fe->hwnd, &r);
1159 x = r.right - r.left;
1160 y = r.bottom - r.top - sy;
1161 midend_size(fe->me, &x, &y, FALSE);
1162 if (x != r.right - r.left || y != r.bottom - r.top) {
1163 /*
1164 * Resize the window, now we know what size we _really_
1165 * want it to be.
1166 */
1167 r.left = r.top = 0;
1168 r.right = x;
1169 r.bottom = y + sy;
1170 AdjustWindowRectEx(&r, WINFLAGS, TRUE, 0);
1171 SetWindowPos(fe->hwnd, NULL, 0, 0, r.right - r.left, r.bottom - r.top,
1172 SWP_NOMOVE | SWP_NOZORDER);
1173 }
1174
1175 if (fe->statusbar) {
1176 GetClientRect(fe->hwnd, &r);
1177 SetWindowPos(fe->statusbar, NULL, 0, r.bottom-r.top-sy, r.right-r.left,
1178 sy, SWP_NOZORDER);
1179 }
1180
1181 *px = x;
1182 *py = y;
1183 }
1184
1185 static void get_max_puzzle_size(frontend *fe, int *x, int *y)
1186 {
1187 RECT r, sr;
1188
1189 if (SystemParametersInfo(SPI_GETWORKAREA, 0, &sr, FALSE)) {
1190 *x = sr.right - sr.left;
1191 *y = sr.bottom - sr.top;
1192 r.left = 100;
1193 r.right = 200;
1194 r.top = 100;
1195 r.bottom = 200;
1196 AdjustWindowRectEx(&r, WINFLAGS, TRUE, 0);
1197 *x -= r.right - r.left - 100;
1198 *y -= r.bottom - r.top - 100;
1199 } else {
1200 *x = *y = INT_MAX;
1201 }
1202
1203 if (fe->statusbar != NULL) {
1204 GetWindowRect(fe->statusbar, &sr);
1205 *y -= sr.bottom - sr.top;
1206 }
1207 }
1208
1209 static frontend *new_window(HINSTANCE inst, char *game_id, char **error)
1210 {
1211 frontend *fe;
1212 int x, y;
1213 RECT r;
1214
1215 fe = snew(frontend);
1216
1217 fe->me = midend_new(fe, &thegame, &win_drawing, fe);
1218
1219 if (game_id) {
1220 *error = midend_game_id(fe->me, game_id);
1221 if (*error) {
1222 midend_free(fe->me);
1223 sfree(fe);
1224 return NULL;
1225 }
1226 }
1227
1228 fe->inst = inst;
1229
1230 fe->timer = 0;
1231 fe->hwnd = NULL;
1232
1233 fe->help_running = FALSE;
1234
1235 fe->drawstatus = NOTHING;
1236 fe->dr = NULL;
1237 fe->fontstart = 0;
1238
1239 midend_new_game(fe->me);
1240
1241 fe->fonts = NULL;
1242 fe->nfonts = fe->fontsize = 0;
1243
1244 {
1245 int i, ncolours;
1246 float *colours;
1247
1248 colours = midend_colours(fe->me, &ncolours);
1249
1250 fe->colours = snewn(ncolours, COLORREF);
1251 fe->brushes = snewn(ncolours, HBRUSH);
1252 fe->pens = snewn(ncolours, HPEN);
1253
1254 for (i = 0; i < ncolours; i++) {
1255 fe->colours[i] = RGB(255 * colours[i*3+0],
1256 255 * colours[i*3+1],
1257 255 * colours[i*3+2]);
1258 fe->brushes[i] = CreateSolidBrush(fe->colours[i]);
1259 fe->pens[i] = CreatePen(PS_SOLID, 1, fe->colours[i]);
1260 }
1261 sfree(colours);
1262 }
1263
1264 if (midend_wants_statusbar(fe->me)) {
1265 fe->statusbar = CreateWindowEx(0, STATUSCLASSNAME, "ooh",
1266 WS_CHILD | WS_VISIBLE,
1267 0, 0, 0, 0, /* status bar does these */
1268 NULL, NULL, inst, NULL);
1269 } else
1270 fe->statusbar = NULL;
1271
1272 get_max_puzzle_size(fe, &x, &y);
1273 midend_size(fe->me, &x, &y, FALSE);
1274
1275 r.left = r.top = 0;
1276 r.right = x;
1277 r.bottom = y;
1278 AdjustWindowRectEx(&r, WINFLAGS, TRUE, 0);
1279
1280 fe->hwnd = CreateWindowEx(0, thegame.name, thegame.name,
1281 WS_OVERLAPPEDWINDOW &~
1282 (WS_THICKFRAME | WS_MAXIMIZEBOX),
1283 CW_USEDEFAULT, CW_USEDEFAULT,
1284 r.right - r.left, r.bottom - r.top,
1285 NULL, NULL, inst, NULL);
1286
1287 if (midend_wants_statusbar(fe->me)) {
1288 RECT sr;
1289 DestroyWindow(fe->statusbar);
1290 fe->statusbar = CreateWindowEx(0, STATUSCLASSNAME, "ooh",
1291 WS_CHILD | WS_VISIBLE,
1292 0, 0, 0, 0, /* status bar does these */
1293 fe->hwnd, NULL, inst, NULL);
1294 /*
1295 * Now resize the window to take account of the status bar.
1296 */
1297 GetWindowRect(fe->statusbar, &sr);
1298 GetWindowRect(fe->hwnd, &r);
1299 SetWindowPos(fe->hwnd, NULL, 0, 0, r.right - r.left,
1300 r.bottom - r.top + sr.bottom - sr.top,
1301 SWP_NOMOVE | SWP_NOZORDER);
1302 } else {
1303 fe->statusbar = NULL;
1304 }
1305
1306 {
1307 HMENU bar = CreateMenu();
1308 HMENU menu = CreateMenu();
1309
1310 AppendMenu(bar, MF_ENABLED|MF_POPUP, (UINT)menu, "Game");
1311 AppendMenu(menu, MF_ENABLED, IDM_NEW, "New");
1312 AppendMenu(menu, MF_ENABLED, IDM_RESTART, "Restart");
1313 AppendMenu(menu, MF_ENABLED, IDM_DESC, "Specific...");
1314 AppendMenu(menu, MF_ENABLED, IDM_SEED, "Random Seed...");
1315
1316 if ((fe->npresets = midend_num_presets(fe->me)) > 0 ||
1317 thegame.can_configure) {
1318 HMENU sub = CreateMenu();
1319 int i;
1320
1321 AppendMenu(bar, MF_ENABLED|MF_POPUP, (UINT)sub, "Type");
1322
1323 fe->presets = snewn(fe->npresets, game_params *);
1324
1325 for (i = 0; i < fe->npresets; i++) {
1326 char *name;
1327
1328 midend_fetch_preset(fe->me, i, &name, &fe->presets[i]);
1329
1330 /*
1331 * FIXME: we ought to go through and do something
1332 * with ampersands here.
1333 */
1334
1335 AppendMenu(sub, MF_ENABLED, IDM_PRESETS + 0x10 * i, name);
1336 }
1337
1338 if (thegame.can_configure) {
1339 AppendMenu(sub, MF_ENABLED, IDM_CONFIG, "Custom...");
1340 }
1341 }
1342
1343 AppendMenu(menu, MF_SEPARATOR, 0, 0);
1344 AppendMenu(menu, MF_ENABLED, IDM_LOAD, "Load");
1345 AppendMenu(menu, MF_ENABLED, IDM_SAVE, "Save");
1346 AppendMenu(menu, MF_SEPARATOR, 0, 0);
1347 if (thegame.can_print) {
1348 AppendMenu(menu, MF_ENABLED, IDM_PRINT, "Print");
1349 AppendMenu(menu, MF_SEPARATOR, 0, 0);
1350 }
1351 AppendMenu(menu, MF_ENABLED, IDM_UNDO, "Undo");
1352 AppendMenu(menu, MF_ENABLED, IDM_REDO, "Redo");
1353 if (thegame.can_format_as_text) {
1354 AppendMenu(menu, MF_SEPARATOR, 0, 0);
1355 AppendMenu(menu, MF_ENABLED, IDM_COPY, "Copy");
1356 }
1357 if (thegame.can_solve) {
1358 AppendMenu(menu, MF_SEPARATOR, 0, 0);
1359 AppendMenu(menu, MF_ENABLED, IDM_SOLVE, "Solve");
1360 }
1361 AppendMenu(menu, MF_SEPARATOR, 0, 0);
1362 AppendMenu(menu, MF_ENABLED, IDM_QUIT, "Exit");
1363 menu = CreateMenu();
1364 AppendMenu(bar, MF_ENABLED|MF_POPUP, (UINT)menu, "Help");
1365 AppendMenu(menu, MF_ENABLED, IDM_ABOUT, "About");
1366 if (help_type != NONE) {
1367 AppendMenu(menu, MF_SEPARATOR, 0, 0);
1368 AppendMenu(menu, MF_ENABLED, IDM_HELPC, "Contents");
1369 if (help_topic) {
1370 char *item;
1371 assert(thegame.name);
1372 item = snewn(9+strlen(thegame.name), char); /*ick*/
1373 sprintf(item, "Help on %s", thegame.name);
1374 AppendMenu(menu, MF_ENABLED, IDM_GAMEHELP, item);
1375 sfree(item);
1376 }
1377 }
1378 SetMenu(fe->hwnd, bar);
1379 }
1380
1381 fe->bitmap = NULL;
1382 new_game_size(fe); /* initialises fe->bitmap */
1383 check_window_size(fe, &x, &y);
1384
1385 SetWindowLong(fe->hwnd, GWL_USERDATA, (LONG)fe);
1386
1387 ShowWindow(fe->hwnd, SW_NORMAL);
1388 SetForegroundWindow(fe->hwnd);
1389
1390 midend_redraw(fe->me);
1391
1392 return fe;
1393 }
1394
1395 static int CALLBACK AboutDlgProc(HWND hwnd, UINT msg,
1396 WPARAM wParam, LPARAM lParam)
1397 {
1398 frontend *fe = (frontend *)GetWindowLong(hwnd, GWL_USERDATA);
1399
1400 switch (msg) {
1401 case WM_INITDIALOG:
1402 return 0;
1403
1404 case WM_COMMAND:
1405 if ((HIWORD(wParam) == BN_CLICKED ||
1406 HIWORD(wParam) == BN_DOUBLECLICKED) &&
1407 LOWORD(wParam) == IDOK)
1408 fe->dlg_done = 1;
1409 return 0;
1410
1411 case WM_CLOSE:
1412 fe->dlg_done = 1;
1413 return 0;
1414 }
1415
1416 return 0;
1417 }
1418
1419 /*
1420 * Wrappers on midend_{get,set}_config, which extend the CFG_*
1421 * enumeration to add CFG_PRINT.
1422 */
1423 static config_item *frontend_get_config(frontend *fe, int which,
1424 char **wintitle)
1425 {
1426 if (which < CFG_FRONTEND_SPECIFIC) {
1427 return midend_get_config(fe->me, which, wintitle);
1428 } else if (which == CFG_PRINT) {
1429 config_item *ret;
1430 int i;
1431
1432 *wintitle = snewn(40 + strlen(thegame.name), char);
1433 sprintf(*wintitle, "%s print setup", thegame.name);
1434
1435 ret = snewn(8, config_item);
1436
1437 i = 0;
1438
1439 ret[i].name = "Number of puzzles to print";
1440 ret[i].type = C_STRING;
1441 ret[i].sval = dupstr("1");
1442 ret[i].ival = 0;
1443 i++;
1444
1445 ret[i].name = "Number of puzzles across the page";
1446 ret[i].type = C_STRING;
1447 ret[i].sval = dupstr("1");
1448 ret[i].ival = 0;
1449 i++;
1450
1451 ret[i].name = "Number of puzzles down the page";
1452 ret[i].type = C_STRING;
1453 ret[i].sval = dupstr("1");
1454 ret[i].ival = 0;
1455 i++;
1456
1457 ret[i].name = "Percentage of standard size";
1458 ret[i].type = C_STRING;
1459 ret[i].sval = dupstr("100.0");
1460 ret[i].ival = 0;
1461 i++;
1462
1463 ret[i].name = "Include currently shown puzzle";
1464 ret[i].type = C_BOOLEAN;
1465 ret[i].sval = NULL;
1466 ret[i].ival = TRUE;
1467 i++;
1468
1469 ret[i].name = "Print solutions";
1470 ret[i].type = C_BOOLEAN;
1471 ret[i].sval = NULL;
1472 ret[i].ival = FALSE;
1473 i++;
1474
1475 if (thegame.can_print_in_colour) {
1476 ret[i].name = "Print in colour";
1477 ret[i].type = C_BOOLEAN;
1478 ret[i].sval = NULL;
1479 ret[i].ival = FALSE;
1480 i++;
1481 }
1482
1483 ret[i].name = NULL;
1484 ret[i].type = C_END;
1485 ret[i].sval = NULL;
1486 ret[i].ival = 0;
1487 i++;
1488
1489 return ret;
1490 } else {
1491 assert(!"We should never get here");
1492 return NULL;
1493 }
1494 }
1495
1496 static char *frontend_set_config(frontend *fe, int which, config_item *cfg)
1497 {
1498 if (which < CFG_FRONTEND_SPECIFIC) {
1499 return midend_set_config(fe->me, which, cfg);
1500 } else if (which == CFG_PRINT) {
1501 if ((fe->printcount = atoi(cfg[0].sval)) <= 0)
1502 return "Number of puzzles to print should be at least one";
1503 if ((fe->printw = atoi(cfg[1].sval)) <= 0)
1504 return "Number of puzzles across the page should be at least one";
1505 if ((fe->printh = atoi(cfg[2].sval)) <= 0)
1506 return "Number of puzzles down the page should be at least one";
1507 if ((fe->printscale = (float)atof(cfg[3].sval)) <= 0)
1508 return "Print size should be positive";
1509 fe->printcurr = cfg[4].ival;
1510 fe->printsolns = cfg[5].ival;
1511 fe->printcolour = thegame.can_print_in_colour && cfg[6].ival;
1512 return NULL;
1513 } else {
1514 assert(!"We should never get here");
1515 return "Internal error";
1516 }
1517 }
1518
1519 static int CALLBACK ConfigDlgProc(HWND hwnd, UINT msg,
1520 WPARAM wParam, LPARAM lParam)
1521 {
1522 frontend *fe = (frontend *)GetWindowLong(hwnd, GWL_USERDATA);
1523 config_item *i;
1524 struct cfg_aux *j;
1525
1526 switch (msg) {
1527 case WM_INITDIALOG:
1528 return 0;
1529
1530 case WM_COMMAND:
1531 /*
1532 * OK and Cancel are special cases.
1533 */
1534 if ((HIWORD(wParam) == BN_CLICKED ||
1535 HIWORD(wParam) == BN_DOUBLECLICKED) &&
1536 (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)) {
1537 if (LOWORD(wParam) == IDOK) {
1538 char *err = frontend_set_config(fe, fe->cfg_which, fe->cfg);
1539
1540 if (err) {
1541 MessageBox(hwnd, err, "Validation error",
1542 MB_ICONERROR | MB_OK);
1543 } else {
1544 fe->dlg_done = 2;
1545 }
1546 } else {
1547 fe->dlg_done = 1;
1548 }
1549 return 0;
1550 }
1551
1552 /*
1553 * First find the control whose id this is.
1554 */
1555 for (i = fe->cfg, j = fe->cfgaux; i->type != C_END; i++, j++) {
1556 if (j->ctlid == LOWORD(wParam))
1557 break;
1558 }
1559 if (i->type == C_END)
1560 return 0; /* not our problem */
1561
1562 if (i->type == C_STRING && HIWORD(wParam) == EN_CHANGE) {
1563 char buffer[4096];
1564 GetDlgItemText(fe->cfgbox, j->ctlid, buffer, lenof(buffer));
1565 buffer[lenof(buffer)-1] = '\0';
1566 sfree(i->sval);
1567 i->sval = dupstr(buffer);
1568 } else if (i->type == C_BOOLEAN &&
1569 (HIWORD(wParam) == BN_CLICKED ||
1570 HIWORD(wParam) == BN_DOUBLECLICKED)) {
1571 i->ival = IsDlgButtonChecked(fe->cfgbox, j->ctlid);
1572 } else if (i->type == C_CHOICES &&
1573 HIWORD(wParam) == CBN_SELCHANGE) {
1574 i->ival = SendDlgItemMessage(fe->cfgbox, j->ctlid,
1575 CB_GETCURSEL, 0, 0);
1576 }
1577
1578 return 0;
1579
1580 case WM_CLOSE:
1581 fe->dlg_done = 1;
1582 return 0;
1583 }
1584
1585 return 0;
1586 }
1587
1588 HWND mkctrl(frontend *fe, int x1, int x2, int y1, int y2,
1589 char *wclass, int wstyle,
1590 int exstyle, const char *wtext, int wid)
1591 {
1592 HWND ret;
1593 ret = CreateWindowEx(exstyle, wclass, wtext,
1594 wstyle | WS_CHILD | WS_VISIBLE, x1, y1, x2-x1, y2-y1,
1595 fe->cfgbox, (HMENU) wid, fe->inst, NULL);
1596 SendMessage(ret, WM_SETFONT, (WPARAM)fe->cfgfont, MAKELPARAM(TRUE, 0));
1597 return ret;
1598 }
1599
1600 static void about(frontend *fe)
1601 {
1602 int i;
1603 WNDCLASS wc;
1604 MSG msg;
1605 TEXTMETRIC tm;
1606 HDC hdc;
1607 HFONT oldfont;
1608 SIZE size;
1609 int gm, id;
1610 int winwidth, winheight, y;
1611 int height, width, maxwid;
1612 const char *strings[16];
1613 int lengths[16];
1614 int nstrings = 0;
1615 char titlebuf[512];
1616
1617 sprintf(titlebuf, "About %.250s", thegame.name);
1618
1619 strings[nstrings++] = thegame.name;
1620 strings[nstrings++] = "from Simon Tatham's Portable Puzzle Collection";
1621 strings[nstrings++] = ver;
1622
1623 wc.style = CS_DBLCLKS | CS_SAVEBITS | CS_BYTEALIGNWINDOW;
1624 wc.lpfnWndProc = DefDlgProc;
1625 wc.cbClsExtra = 0;
1626 wc.cbWndExtra = DLGWINDOWEXTRA + 8;
1627 wc.hInstance = fe->inst;
1628 wc.hIcon = NULL;
1629 wc.hCursor = LoadCursor(NULL, IDC_ARROW);
1630 wc.hbrBackground = (HBRUSH) (COLOR_BACKGROUND +1);
1631 wc.lpszMenuName = NULL;
1632 wc.lpszClassName = "GameAboutBox";
1633 RegisterClass(&wc);
1634
1635 hdc = GetDC(fe->hwnd);
1636 SetMapMode(hdc, MM_TEXT);
1637
1638 fe->dlg_done = FALSE;
1639
1640 fe->cfgfont = CreateFont(-MulDiv(8, GetDeviceCaps(hdc, LOGPIXELSY), 72),
1641 0, 0, 0, 0,
1642 FALSE, FALSE, FALSE, DEFAULT_CHARSET,
1643 OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
1644 DEFAULT_QUALITY,
1645 FF_SWISS,
1646 "MS Shell Dlg");
1647
1648 oldfont = SelectObject(hdc, fe->cfgfont);
1649 if (GetTextMetrics(hdc, &tm)) {
1650 height = tm.tmAscent + tm.tmDescent;
1651 width = tm.tmAveCharWidth;
1652 } else {
1653 height = width = 30;
1654 }
1655
1656 /*
1657 * Figure out the layout of the About box by measuring the
1658 * length of each piece of text.
1659 */
1660 maxwid = 0;
1661 winheight = height/2;
1662
1663 for (i = 0; i < nstrings; i++) {
1664 if (GetTextExtentPoint32(hdc, strings[i], strlen(strings[i]), &size))
1665 lengths[i] = size.cx;
1666 else
1667 lengths[i] = 0; /* *shrug* */
1668 if (maxwid < lengths[i])
1669 maxwid = lengths[i];
1670 winheight += height * 3 / 2 + (height / 2);
1671 }
1672
1673 winheight += height + height * 7 / 4; /* OK button */
1674 winwidth = maxwid + 4*width;
1675
1676 SelectObject(hdc, oldfont);
1677 ReleaseDC(fe->hwnd, hdc);
1678
1679 /*
1680 * Create the dialog, now that we know its size.
1681 */
1682 {
1683 RECT r, r2;
1684
1685 r.left = r.top = 0;
1686 r.right = winwidth;
1687 r.bottom = winheight;
1688
1689 AdjustWindowRectEx(&r, (WS_OVERLAPPEDWINDOW /*|
1690 DS_MODALFRAME | WS_POPUP | WS_VISIBLE |
1691 WS_CAPTION | WS_SYSMENU*/) &~
1692 (WS_MAXIMIZEBOX | WS_OVERLAPPED),
1693 FALSE, 0);
1694
1695 /*
1696 * Centre the dialog on its parent window.
1697 */
1698 r.right -= r.left;
1699 r.bottom -= r.top;
1700 GetWindowRect(fe->hwnd, &r2);
1701 r.left = (r2.left + r2.right - r.right) / 2;
1702 r.top = (r2.top + r2.bottom - r.bottom) / 2;
1703 r.right += r.left;
1704 r.bottom += r.top;
1705
1706 fe->cfgbox = CreateWindowEx(0, wc.lpszClassName, titlebuf,
1707 DS_MODALFRAME | WS_POPUP | WS_VISIBLE |
1708 WS_CAPTION | WS_SYSMENU,
1709 r.left, r.top,
1710 r.right-r.left, r.bottom-r.top,
1711 fe->hwnd, NULL, fe->inst, NULL);
1712 }
1713
1714 SendMessage(fe->cfgbox, WM_SETFONT, (WPARAM)fe->cfgfont, FALSE);
1715
1716 SetWindowLong(fe->cfgbox, GWL_USERDATA, (LONG)fe);
1717 SetWindowLong(fe->cfgbox, DWL_DLGPROC, (LONG)AboutDlgProc);
1718
1719 id = 1000;
1720 y = height/2;
1721 for (i = 0; i < nstrings; i++) {
1722 int border = width*2 + (maxwid - lengths[i]) / 2;
1723 mkctrl(fe, border, border+lengths[i], y+height*1/8, y+height*9/8,
1724 "Static", 0, 0, strings[i], id++);
1725 y += height*3/2;
1726
1727 assert(y < winheight);
1728 y += height/2;
1729 }
1730
1731 y += height/2; /* extra space before OK */
1732 mkctrl(fe, width*2, maxwid+width*2, y, y+height*7/4, "BUTTON",
1733 BS_PUSHBUTTON | BS_NOTIFY | WS_TABSTOP | BS_DEFPUSHBUTTON, 0,
1734 "OK", IDOK);
1735
1736 SendMessage(fe->cfgbox, WM_INITDIALOG, 0, 0);
1737
1738 EnableWindow(fe->hwnd, FALSE);
1739 ShowWindow(fe->cfgbox, SW_NORMAL);
1740 while ((gm=GetMessage(&msg, NULL, 0, 0)) > 0) {
1741 if (!IsDialogMessage(fe->cfgbox, &msg))
1742 DispatchMessage(&msg);
1743 if (fe->dlg_done)
1744 break;
1745 }
1746 EnableWindow(fe->hwnd, TRUE);
1747 SetForegroundWindow(fe->hwnd);
1748 DestroyWindow(fe->cfgbox);
1749 DeleteObject(fe->cfgfont);
1750 }
1751
1752 static int get_config(frontend *fe, int which)
1753 {
1754 config_item *i;
1755 struct cfg_aux *j;
1756 char *title;
1757 WNDCLASS wc;
1758 MSG msg;
1759 TEXTMETRIC tm;
1760 HDC hdc;
1761 HFONT oldfont;
1762 SIZE size;
1763 HWND ctl;
1764 int gm, id, nctrls;
1765 int winwidth, winheight, col1l, col1r, col2l, col2r, y;
1766 int height, width, maxlabel, maxcheckbox;
1767
1768 wc.style = CS_DBLCLKS | CS_SAVEBITS | CS_BYTEALIGNWINDOW;
1769 wc.lpfnWndProc = DefDlgProc;
1770 wc.cbClsExtra = 0;
1771 wc.cbWndExtra = DLGWINDOWEXTRA + 8;
1772 wc.hInstance = fe->inst;
1773 wc.hIcon = NULL;
1774 wc.hCursor = LoadCursor(NULL, IDC_ARROW);
1775 wc.hbrBackground = (HBRUSH) (COLOR_BACKGROUND +1);
1776 wc.lpszMenuName = NULL;
1777 wc.lpszClassName = "GameConfigBox";
1778 RegisterClass(&wc);
1779
1780 hdc = GetDC(fe->hwnd);
1781 SetMapMode(hdc, MM_TEXT);
1782
1783 fe->dlg_done = FALSE;
1784
1785 fe->cfgfont = CreateFont(-MulDiv(8, GetDeviceCaps(hdc, LOGPIXELSY), 72),
1786 0, 0, 0, 0,
1787 FALSE, FALSE, FALSE, DEFAULT_CHARSET,
1788 OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
1789 DEFAULT_QUALITY,
1790 FF_SWISS,
1791 "MS Shell Dlg");
1792
1793 oldfont = SelectObject(hdc, fe->cfgfont);
1794 if (GetTextMetrics(hdc, &tm)) {
1795 height = tm.tmAscent + tm.tmDescent;
1796 width = tm.tmAveCharWidth;
1797 } else {
1798 height = width = 30;
1799 }
1800
1801 fe->cfg = frontend_get_config(fe, which, &title);
1802 fe->cfg_which = which;
1803
1804 /*
1805 * Figure out the layout of the config box by measuring the
1806 * length of each piece of text.
1807 */
1808 maxlabel = maxcheckbox = 0;
1809 winheight = height/2;
1810
1811 for (i = fe->cfg; i->type != C_END; i++) {
1812 switch (i->type) {
1813 case C_STRING:
1814 case C_CHOICES:
1815 /*
1816 * Both these control types have a label filling only
1817 * the left-hand column of the box.
1818 */
1819 if (GetTextExtentPoint32(hdc, i->name, strlen(i->name), &size) &&
1820 maxlabel < size.cx)
1821 maxlabel = size.cx;
1822 winheight += height * 3 / 2 + (height / 2);
1823 break;
1824
1825 case C_BOOLEAN:
1826 /*
1827 * Checkboxes take up the whole of the box width.
1828 */
1829 if (GetTextExtentPoint32(hdc, i->name, strlen(i->name), &size) &&
1830 maxcheckbox < size.cx)
1831 maxcheckbox = size.cx;
1832 winheight += height + (height / 2);
1833 break;
1834 }
1835 }
1836
1837 winheight += height + height * 7 / 4; /* OK / Cancel buttons */
1838
1839 col1l = 2*width;
1840 col1r = col1l + maxlabel;
1841 col2l = col1r + 2*width;
1842 col2r = col2l + 30*width;
1843 if (col2r < col1l+2*height+maxcheckbox)
1844 col2r = col1l+2*height+maxcheckbox;
1845 winwidth = col2r + 2*width;
1846
1847 SelectObject(hdc, oldfont);
1848 ReleaseDC(fe->hwnd, hdc);
1849
1850 /*
1851 * Create the dialog, now that we know its size.
1852 */
1853 {
1854 RECT r, r2;
1855
1856 r.left = r.top = 0;
1857 r.right = winwidth;
1858 r.bottom = winheight;
1859
1860 AdjustWindowRectEx(&r, (WS_OVERLAPPEDWINDOW /*|
1861 DS_MODALFRAME | WS_POPUP | WS_VISIBLE |
1862 WS_CAPTION | WS_SYSMENU*/) &~
1863 (WS_MAXIMIZEBOX | WS_OVERLAPPED),
1864 FALSE, 0);
1865
1866 /*
1867 * Centre the dialog on its parent window.
1868 */
1869 r.right -= r.left;
1870 r.bottom -= r.top;
1871 GetWindowRect(fe->hwnd, &r2);
1872 r.left = (r2.left + r2.right - r.right) / 2;
1873 r.top = (r2.top + r2.bottom - r.bottom) / 2;
1874 r.right += r.left;
1875 r.bottom += r.top;
1876
1877 fe->cfgbox = CreateWindowEx(0, wc.lpszClassName, title,
1878 DS_MODALFRAME | WS_POPUP | WS_VISIBLE |
1879 WS_CAPTION | WS_SYSMENU,
1880 r.left, r.top,
1881 r.right-r.left, r.bottom-r.top,
1882 fe->hwnd, NULL, fe->inst, NULL);
1883 sfree(title);
1884 }
1885
1886 SendMessage(fe->cfgbox, WM_SETFONT, (WPARAM)fe->cfgfont, FALSE);
1887
1888 SetWindowLong(fe->cfgbox, GWL_USERDATA, (LONG)fe);
1889 SetWindowLong(fe->cfgbox, DWL_DLGPROC, (LONG)ConfigDlgProc);
1890
1891 /*
1892 * Count the controls so we can allocate cfgaux.
1893 */
1894 for (nctrls = 0, i = fe->cfg; i->type != C_END; i++)
1895 nctrls++;
1896 fe->cfgaux = snewn(nctrls, struct cfg_aux);
1897
1898 id = 1000;
1899 y = height/2;
1900 for (i = fe->cfg, j = fe->cfgaux; i->type != C_END; i++, j++) {
1901 switch (i->type) {
1902 case C_STRING:
1903 /*
1904 * Edit box with a label beside it.
1905 */
1906 mkctrl(fe, col1l, col1r, y+height*1/8, y+height*9/8,
1907 "Static", 0, 0, i->name, id++);
1908 ctl = mkctrl(fe, col2l, col2r, y, y+height*3/2,
1909 "EDIT", WS_TABSTOP | ES_AUTOHSCROLL,
1910 WS_EX_CLIENTEDGE, "", (j->ctlid = id++));
1911 SetWindowText(ctl, i->sval);
1912 y += height*3/2;
1913 break;
1914
1915 case C_BOOLEAN:
1916 /*
1917 * Simple checkbox.
1918 */
1919 mkctrl(fe, col1l, col2r, y, y+height, "BUTTON",
1920 BS_NOTIFY | BS_AUTOCHECKBOX | WS_TABSTOP,
1921 0, i->name, (j->ctlid = id++));
1922 CheckDlgButton(fe->cfgbox, j->ctlid, (i->ival != 0));
1923 y += height;
1924 break;
1925
1926 case C_CHOICES:
1927 /*
1928 * Drop-down list with a label beside it.
1929 */
1930 mkctrl(fe, col1l, col1r, y+height*1/8, y+height*9/8,
1931 "STATIC", 0, 0, i->name, id++);
1932 ctl = mkctrl(fe, col2l, col2r, y, y+height*41/2,
1933 "COMBOBOX", WS_TABSTOP |
1934 CBS_DROPDOWNLIST | CBS_HASSTRINGS,
1935 WS_EX_CLIENTEDGE, "", (j->ctlid = id++));
1936 {
1937 char c, *p, *q, *str;
1938
1939 SendMessage(ctl, CB_RESETCONTENT, 0, 0);
1940 p = i->sval;
1941 c = *p++;
1942 while (*p) {
1943 q = p;
1944 while (*q && *q != c) q++;
1945 str = snewn(q-p+1, char);
1946 strncpy(str, p, q-p);
1947 str[q-p] = '\0';
1948 SendMessage(ctl, CB_ADDSTRING, 0, (LPARAM)str);
1949 sfree(str);
1950 if (*q) q++;
1951 p = q;
1952 }
1953 }
1954
1955 SendMessage(ctl, CB_SETCURSEL, i->ival, 0);
1956
1957 y += height*3/2;
1958 break;
1959 }
1960
1961 assert(y < winheight);
1962 y += height/2;
1963 }
1964
1965 y += height/2; /* extra space before OK and Cancel */
1966 mkctrl(fe, col1l, (col1l+col2r)/2-width, y, y+height*7/4, "BUTTON",
1967 BS_PUSHBUTTON | BS_NOTIFY | WS_TABSTOP | BS_DEFPUSHBUTTON, 0,
1968 "OK", IDOK);
1969 mkctrl(fe, (col1l+col2r)/2+width, col2r, y, y+height*7/4, "BUTTON",
1970 BS_PUSHBUTTON | BS_NOTIFY | WS_TABSTOP, 0, "Cancel", IDCANCEL);
1971
1972 SendMessage(fe->cfgbox, WM_INITDIALOG, 0, 0);
1973
1974 EnableWindow(fe->hwnd, FALSE);
1975 ShowWindow(fe->cfgbox, SW_NORMAL);
1976 while ((gm=GetMessage(&msg, NULL, 0, 0)) > 0) {
1977 if (!IsDialogMessage(fe->cfgbox, &msg))
1978 DispatchMessage(&msg);
1979 if (fe->dlg_done)
1980 break;
1981 }
1982 EnableWindow(fe->hwnd, TRUE);
1983 SetForegroundWindow(fe->hwnd);
1984 DestroyWindow(fe->cfgbox);
1985 DeleteObject(fe->cfgfont);
1986
1987 free_cfg(fe->cfg);
1988 sfree(fe->cfgaux);
1989
1990 return (fe->dlg_done == 2);
1991 }
1992
1993 static void new_game_size(frontend *fe)
1994 {
1995 RECT r, sr;
1996 HDC hdc;
1997 int x, y;
1998
1999 get_max_puzzle_size(fe, &x, &y);
2000 midend_size(fe->me, &x, &y, FALSE);
2001
2002 r.left = r.top = 0;
2003 r.right = x;
2004 r.bottom = y;
2005 AdjustWindowRectEx(&r, WINFLAGS, TRUE, 0);
2006
2007 if (fe->statusbar != NULL) {
2008 GetWindowRect(fe->statusbar, &sr);
2009 } else {
2010 sr.left = sr.right = sr.top = sr.bottom = 0;
2011 }
2012 SetWindowPos(fe->hwnd, NULL, 0, 0,
2013 r.right - r.left,
2014 r.bottom - r.top + sr.bottom - sr.top,
2015 SWP_NOMOVE | SWP_NOZORDER);
2016
2017 check_window_size(fe, &x, &y);
2018
2019 if (fe->statusbar != NULL)
2020 SetWindowPos(fe->statusbar, NULL, 0, y, x,
2021 sr.bottom - sr.top, SWP_NOZORDER);
2022
2023 if (fe->bitmap) DeleteObject(fe->bitmap);
2024
2025 hdc = GetDC(fe->hwnd);
2026 fe->bitmap = CreateCompatibleBitmap(hdc, x, y);
2027 ReleaseDC(fe->hwnd, hdc);
2028
2029 midend_redraw(fe->me);
2030 }
2031
2032 static void new_game_type(frontend *fe)
2033 {
2034 midend_new_game(fe->me);
2035 new_game_size(fe);
2036 }
2037
2038 static int is_alt_pressed(void)
2039 {
2040 BYTE keystate[256];
2041 int r = GetKeyboardState(keystate);
2042 if (!r)
2043 return FALSE;
2044 if (keystate[VK_MENU] & 0x80)
2045 return TRUE;
2046 if (keystate[VK_RMENU] & 0x80)
2047 return TRUE;
2048 return FALSE;
2049 }
2050
2051 static void savefile_write(void *wctx, void *buf, int len)
2052 {
2053 FILE *fp = (FILE *)wctx;
2054 fwrite(buf, 1, len, fp);
2055 }
2056
2057 static int savefile_read(void *wctx, void *buf, int len)
2058 {
2059 FILE *fp = (FILE *)wctx;
2060 int ret;
2061
2062 ret = fread(buf, 1, len, fp);
2063 return (ret == len);
2064 }
2065
2066 static LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
2067 WPARAM wParam, LPARAM lParam)
2068 {
2069 frontend *fe = (frontend *)GetWindowLong(hwnd, GWL_USERDATA);
2070 int cmd;
2071
2072 switch (message) {
2073 case WM_CLOSE:
2074 DestroyWindow(hwnd);
2075 return 0;
2076 case WM_COMMAND:
2077 cmd = wParam & ~0xF; /* low 4 bits reserved to Windows */
2078 switch (cmd) {
2079 case IDM_NEW:
2080 if (!midend_process_key(fe->me, 0, 0, 'n'))
2081 PostQuitMessage(0);
2082 break;
2083 case IDM_RESTART:
2084 midend_restart_game(fe->me);
2085 break;
2086 case IDM_UNDO:
2087 if (!midend_process_key(fe->me, 0, 0, 'u'))
2088 PostQuitMessage(0);
2089 break;
2090 case IDM_REDO:
2091 if (!midend_process_key(fe->me, 0, 0, '\x12'))
2092 PostQuitMessage(0);
2093 break;
2094 case IDM_COPY:
2095 {
2096 char *text = midend_text_format(fe->me);
2097 if (text)
2098 write_clip(hwnd, text);
2099 else
2100 MessageBeep(MB_ICONWARNING);
2101 sfree(text);
2102 }
2103 break;
2104 case IDM_SOLVE:
2105 {
2106 char *msg = midend_solve(fe->me);
2107 if (msg)
2108 MessageBox(hwnd, msg, "Unable to solve",
2109 MB_ICONERROR | MB_OK);
2110 }
2111 break;
2112 case IDM_QUIT:
2113 if (!midend_process_key(fe->me, 0, 0, 'q'))
2114 PostQuitMessage(0);
2115 break;
2116 case IDM_CONFIG:
2117 if (get_config(fe, CFG_SETTINGS))
2118 new_game_type(fe);
2119 break;
2120 case IDM_SEED:
2121 if (get_config(fe, CFG_SEED))
2122 new_game_type(fe);
2123 break;
2124 case IDM_DESC:
2125 if (get_config(fe, CFG_DESC))
2126 new_game_type(fe);
2127 break;
2128 case IDM_PRINT:
2129 if (get_config(fe, CFG_PRINT))
2130 print(fe);
2131 break;
2132 case IDM_ABOUT:
2133 about(fe);
2134 break;
2135 case IDM_LOAD:
2136 case IDM_SAVE:
2137 {
2138 OPENFILENAME of;
2139 char filename[FILENAME_MAX];
2140 int ret;
2141
2142 memset(&of, 0, sizeof(of));
2143 of.hwndOwner = hwnd;
2144 of.lpstrFilter = "All Files (*.*)\0*\0\0\0";
2145 of.lpstrCustomFilter = NULL;
2146 of.nFilterIndex = 1;
2147 of.lpstrFile = filename;
2148 filename[0] = '\0';
2149 of.nMaxFile = lenof(filename);
2150 of.lpstrFileTitle = NULL;
2151 of.lpstrTitle = (cmd == IDM_SAVE ?
2152 "Enter name of game file to save" :
2153 "Enter name of saved game file to load");
2154 of.Flags = 0;
2155 #ifdef OPENFILENAME_SIZE_VERSION_400
2156 of.lStructSize = OPENFILENAME_SIZE_VERSION_400;
2157 #else
2158 of.lStructSize = sizeof(of);
2159 #endif
2160 of.lpstrInitialDir = NULL;
2161
2162 if (cmd == IDM_SAVE)
2163 ret = GetSaveFileName(&of);
2164 else
2165 ret = GetOpenFileName(&of);
2166
2167 if (ret) {
2168 if (cmd == IDM_SAVE) {
2169 FILE *fp;
2170
2171 if ((fp = fopen(filename, "r")) != NULL) {
2172 char buf[256 + FILENAME_MAX];
2173 fclose(fp);
2174 /* file exists */
2175
2176 sprintf(buf, "Are you sure you want to overwrite"
2177 " the file \"%.*s\"?",
2178 FILENAME_MAX, filename);
2179 if (MessageBox(hwnd, buf, "Question",
2180 MB_YESNO | MB_ICONQUESTION)
2181 != IDYES)
2182 break;
2183 }
2184
2185 fp = fopen(filename, "w");
2186
2187 if (!fp) {
2188 MessageBox(hwnd, "Unable to open save file",
2189 "Error", MB_ICONERROR | MB_OK);
2190 break;
2191 }
2192
2193 midend_serialise(fe->me, savefile_write, fp);
2194
2195 fclose(fp);
2196 } else {
2197 FILE *fp = fopen(filename, "r");
2198 char *err;
2199
2200 if (!fp) {
2201 MessageBox(hwnd, "Unable to open saved game file",
2202 "Error", MB_ICONERROR | MB_OK);
2203 break;
2204 }
2205
2206 err = midend_deserialise(fe->me, savefile_read, fp);
2207
2208 fclose(fp);
2209
2210 if (err) {
2211 MessageBox(hwnd, err, "Error", MB_ICONERROR|MB_OK);
2212 break;
2213 }
2214
2215 new_game_size(fe);
2216 }
2217 }
2218 }
2219
2220 break;
2221 case IDM_HELPC:
2222 start_help(fe, NULL);
2223 break;
2224 case IDM_GAMEHELP:
2225 start_help(fe, help_topic);
2226 break;
2227 default:
2228 {
2229 int p = ((wParam &~ 0xF) - IDM_PRESETS) / 0x10;
2230
2231 if (p >= 0 && p < fe->npresets) {
2232 midend_set_params(fe->me, fe->presets[p]);
2233 new_game_type(fe);
2234 }
2235 }
2236 break;
2237 }
2238 break;
2239 case WM_DESTROY:
2240 stop_help(fe);
2241 PostQuitMessage(0);
2242 return 0;
2243 case WM_PAINT:
2244 {
2245 PAINTSTRUCT p;
2246 HDC hdc, hdc2;
2247 HBITMAP prevbm;
2248
2249 hdc = BeginPaint(hwnd, &p);
2250 hdc2 = CreateCompatibleDC(hdc);
2251 prevbm = SelectObject(hdc2, fe->bitmap);
2252 BitBlt(hdc,
2253 p.rcPaint.left, p.rcPaint.top,
2254 p.rcPaint.right - p.rcPaint.left,
2255 p.rcPaint.bottom - p.rcPaint.top,
2256 hdc2,
2257 p.rcPaint.left, p.rcPaint.top,
2258 SRCCOPY);
2259 SelectObject(hdc2, prevbm);
2260 DeleteDC(hdc2);
2261 EndPaint(hwnd, &p);
2262 }
2263 return 0;
2264 case WM_KEYDOWN:
2265 {
2266 int key = -1;
2267 BYTE keystate[256];
2268 int r = GetKeyboardState(keystate);
2269 int shift = (r && (keystate[VK_SHIFT] & 0x80)) ? MOD_SHFT : 0;
2270 int ctrl = (r && (keystate[VK_CONTROL] & 0x80)) ? MOD_CTRL : 0;
2271
2272 switch (wParam) {
2273 case VK_LEFT:
2274 if (!(lParam & 0x01000000))
2275 key = MOD_NUM_KEYPAD | '4';
2276 else
2277 key = shift | ctrl | CURSOR_LEFT;
2278 break;
2279 case VK_RIGHT:
2280 if (!(lParam & 0x01000000))
2281 key = MOD_NUM_KEYPAD | '6';
2282 else
2283 key = shift | ctrl | CURSOR_RIGHT;
2284 break;
2285 case VK_UP:
2286 if (!(lParam & 0x01000000))
2287 key = MOD_NUM_KEYPAD | '8';
2288 else
2289 key = shift | ctrl | CURSOR_UP;
2290 break;
2291 case VK_DOWN:
2292 if (!(lParam & 0x01000000))
2293 key = MOD_NUM_KEYPAD | '2';
2294 else
2295 key = shift | ctrl | CURSOR_DOWN;
2296 break;
2297 /*
2298 * Diagonal keys on the numeric keypad.
2299 */
2300 case VK_PRIOR:
2301 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '9';
2302 break;
2303 case VK_NEXT:
2304 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '3';
2305 break;
2306 case VK_HOME:
2307 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '7';
2308 break;
2309 case VK_END:
2310 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '1';
2311 break;
2312 case VK_INSERT:
2313 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '0';
2314 break;
2315 case VK_CLEAR:
2316 if (!(lParam & 0x01000000)) key = MOD_NUM_KEYPAD | '5';
2317 break;
2318 /*
2319 * Numeric keypad keys with Num Lock on.
2320 */
2321 case VK_NUMPAD4: key = MOD_NUM_KEYPAD | '4'; break;
2322 case VK_NUMPAD6: key = MOD_NUM_KEYPAD | '6'; break;
2323 case VK_NUMPAD8: key = MOD_NUM_KEYPAD | '8'; break;
2324 case VK_NUMPAD2: key = MOD_NUM_KEYPAD | '2'; break;
2325 case VK_NUMPAD5: key = MOD_NUM_KEYPAD | '5'; break;
2326 case VK_NUMPAD9: key = MOD_NUM_KEYPAD | '9'; break;
2327 case VK_NUMPAD3: key = MOD_NUM_KEYPAD | '3'; break;
2328 case VK_NUMPAD7: key = MOD_NUM_KEYPAD | '7'; break;
2329 case VK_NUMPAD1: key = MOD_NUM_KEYPAD | '1'; break;
2330 case VK_NUMPAD0: key = MOD_NUM_KEYPAD | '0'; break;
2331 }
2332
2333 if (key != -1) {
2334 if (!midend_process_key(fe->me, 0, 0, key))
2335 PostQuitMessage(0);
2336 } else {
2337 MSG m;
2338 m.hwnd = hwnd;
2339 m.message = WM_KEYDOWN;
2340 m.wParam = wParam;
2341 m.lParam = lParam & 0xdfff;
2342 TranslateMessage(&m);
2343 }
2344 }
2345 break;
2346 case WM_LBUTTONDOWN:
2347 case WM_RBUTTONDOWN:
2348 case WM_MBUTTONDOWN:
2349 {
2350 int button;
2351
2352 /*
2353 * Shift-clicks count as middle-clicks, since otherwise
2354 * two-button Windows users won't have any kind of
2355 * middle click to use.
2356 */
2357 if (message == WM_MBUTTONDOWN || (wParam & MK_SHIFT))
2358 button = MIDDLE_BUTTON;
2359 else if (message == WM_RBUTTONDOWN || is_alt_pressed())
2360 button = RIGHT_BUTTON;
2361 else
2362 button = LEFT_BUTTON;
2363
2364 if (!midend_process_key(fe->me, (signed short)LOWORD(lParam),
2365 (signed short)HIWORD(lParam), button))
2366 PostQuitMessage(0);
2367
2368 SetCapture(hwnd);
2369 }
2370 break;
2371 case WM_LBUTTONUP:
2372 case WM_RBUTTONUP:
2373 case WM_MBUTTONUP:
2374 {
2375 int button;
2376
2377 /*
2378 * Shift-clicks count as middle-clicks, since otherwise
2379 * two-button Windows users won't have any kind of
2380 * middle click to use.
2381 */
2382 if (message == WM_MBUTTONUP || (wParam & MK_SHIFT))
2383 button = MIDDLE_RELEASE;
2384 else if (message == WM_RBUTTONUP || is_alt_pressed())
2385 button = RIGHT_RELEASE;
2386 else
2387 button = LEFT_RELEASE;
2388
2389 if (!midend_process_key(fe->me, (signed short)LOWORD(lParam),
2390 (signed short)HIWORD(lParam), button))
2391 PostQuitMessage(0);
2392
2393 ReleaseCapture();
2394 }
2395 break;
2396 case WM_MOUSEMOVE:
2397 {
2398 int button;
2399
2400 if (wParam & (MK_MBUTTON | MK_SHIFT))
2401 button = MIDDLE_DRAG;
2402 else if (wParam & MK_RBUTTON || is_alt_pressed())
2403 button = RIGHT_DRAG;
2404 else
2405 button = LEFT_DRAG;
2406
2407 if (!midend_process_key(fe->me, (signed short)LOWORD(lParam),
2408 (signed short)HIWORD(lParam), button))
2409 PostQuitMessage(0);
2410 }
2411 break;
2412 case WM_CHAR:
2413 if (!midend_process_key(fe->me, 0, 0, (unsigned char)wParam))
2414 PostQuitMessage(0);
2415 return 0;
2416 case WM_TIMER:
2417 if (fe->timer) {
2418 DWORD now = GetTickCount();
2419 float elapsed = (float) (now - fe->timer_last_tickcount) * 0.001F;
2420 midend_timer(fe->me, elapsed);
2421 fe->timer_last_tickcount = now;
2422 }
2423 return 0;
2424 }
2425
2426 return DefWindowProc(hwnd, message, wParam, lParam);
2427 }
2428
2429 int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show)
2430 {
2431 MSG msg;
2432 char *error;
2433
2434 InitCommonControls();
2435
2436 if (!prev) {
2437 WNDCLASS wndclass;
2438
2439 wndclass.style = 0;
2440 wndclass.lpfnWndProc = WndProc;
2441 wndclass.cbClsExtra = 0;
2442 wndclass.cbWndExtra = 0;
2443 wndclass.hInstance = inst;
2444 wndclass.hIcon = LoadIcon(inst, IDI_APPLICATION);
2445 wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
2446 wndclass.hbrBackground = NULL;
2447 wndclass.lpszMenuName = NULL;
2448 wndclass.lpszClassName = thegame.name;
2449
2450 RegisterClass(&wndclass);
2451 }
2452
2453 while (*cmdline && isspace((unsigned char)*cmdline))
2454 cmdline++;
2455
2456 init_help();
2457
2458 if (!new_window(inst, *cmdline ? cmdline : NULL, &error)) {
2459 char buf[128];
2460 sprintf(buf, "%.100s Error", thegame.name);
2461 MessageBox(NULL, error, buf, MB_OK|MB_ICONERROR);
2462 return 1;
2463 }
2464
2465 while (GetMessage(&msg, NULL, 0, 0)) {
2466 DispatchMessage(&msg);
2467 }
2468
2469 cleanup_help();
2470
2471 return msg.wParam;
2472 }
Simon Tatham's portable puzzles collection; import of svn://svn.tartarus.org/sgt/puzzles