chiark / gitweb /
Game configuration box for Windows, by constructing the dialog box
[sgt-puzzles.git] / windows.c
1 /*
2  * windows.c: Windows front end for my puzzle collection.
3  */
4
5 #include <windows.h>
6 #include <commctrl.h>
7
8 #include <stdio.h>
9 #include <assert.h>
10 #include <stdarg.h>
11 #include <stdlib.h>
12 #include <time.h>
13
14 #include "puzzles.h"
15
16 #define IDM_NEW       0x0010
17 #define IDM_RESTART   0x0020
18 #define IDM_UNDO      0x0030
19 #define IDM_REDO      0x0040
20 #define IDM_QUIT      0x0050
21 #define IDM_CONFIG    0x0060
22 #define IDM_PRESETS   0x0100
23
24 #ifdef DEBUG
25 static FILE *debug_fp = NULL;
26 static HANDLE debug_hdl = INVALID_HANDLE_VALUE;
27 static int debug_got_console = 0;
28
29 void dputs(char *buf)
30 {
31     DWORD dw;
32
33     if (!debug_got_console) {
34         if (AllocConsole()) {
35             debug_got_console = 1;
36             debug_hdl = GetStdHandle(STD_OUTPUT_HANDLE);
37         }
38     }
39     if (!debug_fp) {
40         debug_fp = fopen("debug.log", "w");
41     }
42
43     if (debug_hdl != INVALID_HANDLE_VALUE) {
44         WriteFile(debug_hdl, buf, strlen(buf), &dw, NULL);
45     }
46     fputs(buf, debug_fp);
47     fflush(debug_fp);
48 }
49
50 void debug_printf(char *fmt, ...)
51 {
52     char buf[4096];
53     va_list ap;
54
55     va_start(ap, fmt);
56     vsprintf(buf, fmt, ap);
57     dputs(buf);
58     va_end(ap);
59 }
60
61 #define debug(x) (debug_printf x)
62
63 #else
64
65 #define debug(x)
66
67 #endif
68
69 struct font {
70     HFONT font;
71     int type;
72     int size;
73 };
74
75 struct cfg_aux {
76     int ctlid;
77 };
78
79 struct frontend {
80     midend_data *me;
81     HWND hwnd, statusbar, cfgbox;
82     HINSTANCE inst;
83     HBITMAP bitmap, prevbm;
84     HDC hdc_bm;
85     COLORREF *colours;
86     HBRUSH *brushes;
87     HPEN *pens;
88     HRGN clip;
89     UINT timer;
90     int npresets;
91     game_params **presets;
92     struct font *fonts;
93     int nfonts, fontsize;
94     config_item *cfg;
95     struct cfg_aux *cfgaux;
96     int cfg_done;
97     HFONT cfgfont;
98 };
99
100 void fatal(char *fmt, ...)
101 {
102     char buf[2048];
103     va_list ap;
104
105     va_start(ap, fmt);
106     vsprintf(buf, fmt, ap);
107     va_end(ap);
108
109     MessageBox(NULL, buf, "Fatal error", MB_ICONEXCLAMATION | MB_OK);
110
111     exit(1);
112 }
113
114 void status_bar(frontend *fe, char *text)
115 {
116     SetWindowText(fe->statusbar, text);
117 }
118
119 void frontend_default_colour(frontend *fe, float *output)
120 {
121     DWORD c = GetSysColor(COLOR_MENU); /* ick */
122
123     output[0] = (float)(GetRValue(c) / 255.0);
124     output[1] = (float)(GetGValue(c) / 255.0);
125     output[2] = (float)(GetBValue(c) / 255.0);
126 }
127
128 void clip(frontend *fe, int x, int y, int w, int h)
129 {
130     if (!fe->clip) {
131         fe->clip = CreateRectRgn(0, 0, 1, 1);
132         GetClipRgn(fe->hdc_bm, fe->clip);
133     }
134
135     IntersectClipRect(fe->hdc_bm, x, y, x+w, y+h);
136 }
137
138 void unclip(frontend *fe)
139 {
140     assert(fe->clip);
141     SelectClipRgn(fe->hdc_bm, fe->clip);
142 }
143
144 void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize,
145                int align, int colour, char *text)
146 {
147     int i;
148
149     /*
150      * Find or create the font.
151      */
152     for (i = 0; i < fe->nfonts; i++)
153         if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
154             break;
155
156     if (i == fe->nfonts) {
157         if (fe->fontsize <= fe->nfonts) {
158             fe->fontsize = fe->nfonts + 10;
159             fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
160         }
161
162         fe->nfonts++;
163
164         fe->fonts[i].type = fonttype;
165         fe->fonts[i].size = fontsize;
166
167         /*
168          * FIXME: Really I should make at least _some_ effort to
169          * pick the correct font.
170          */
171         fe->fonts[i].font = CreateFont(-fontsize, 0, 0, 0, 0,
172                                        FALSE, FALSE, FALSE, DEFAULT_CHARSET,
173                                        OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
174                                        DEFAULT_QUALITY,
175                                        (fonttype == FONT_FIXED ?
176                                         FIXED_PITCH | FF_DONTCARE :
177                                         VARIABLE_PITCH | FF_SWISS),
178                                        NULL);
179     }
180
181     /*
182      * Position and draw the text.
183      */
184     {
185         HFONT oldfont;
186         TEXTMETRIC tm;
187         SIZE size;
188
189         oldfont = SelectObject(fe->hdc_bm, fe->fonts[i].font);
190         if (GetTextMetrics(fe->hdc_bm, &tm)) {
191             if (align & ALIGN_VCENTRE)
192                 y -= (tm.tmAscent+tm.tmDescent)/2;
193             else
194                 y -= tm.tmAscent;
195         }
196         if (GetTextExtentPoint32(fe->hdc_bm, text, strlen(text), &size)) {
197             if (align & ALIGN_HCENTRE)
198                 x -= size.cx / 2;
199             else if (align & ALIGN_HRIGHT)
200                 x -= size.cx;
201         }
202         SetBkMode(fe->hdc_bm, TRANSPARENT);
203         TextOut(fe->hdc_bm, x, y, text, strlen(text));
204         SelectObject(fe->hdc_bm, oldfont);
205     }
206 }
207
208 void draw_rect(frontend *fe, int x, int y, int w, int h, int colour)
209 {
210     if (w == 1 && h == 1) {
211         /*
212          * Rectangle() appears to get uppity if asked to draw a 1x1
213          * rectangle, presumably on the grounds that that's beneath
214          * its dignity and you ought to be using SetPixel instead.
215          * So I will.
216          */
217         SetPixel(fe->hdc_bm, x, y, fe->colours[colour]);
218     } else {
219         HBRUSH oldbrush = SelectObject(fe->hdc_bm, fe->brushes[colour]);
220         HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]);
221         Rectangle(fe->hdc_bm, x, y, x+w, y+h);
222         SelectObject(fe->hdc_bm, oldbrush);
223         SelectObject(fe->hdc_bm, oldpen);
224     }
225 }
226
227 void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour)
228 {
229     HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]);
230     MoveToEx(fe->hdc_bm, x1, y1, NULL);
231     LineTo(fe->hdc_bm, x2, y2);
232     SetPixel(fe->hdc_bm, x2, y2, fe->colours[colour]);
233     SelectObject(fe->hdc_bm, oldpen);
234 }
235
236 void draw_polygon(frontend *fe, int *coords, int npoints,
237                   int fill, int colour)
238 {
239     POINT *pts = snewn(npoints+1, POINT);
240     int i;
241
242     for (i = 0; i <= npoints; i++) {
243         int j = (i < npoints ? i : 0);
244         pts[i].x = coords[j*2];
245         pts[i].y = coords[j*2+1];
246     }
247
248     if (fill) {
249         HBRUSH oldbrush = SelectObject(fe->hdc_bm, fe->brushes[colour]);
250         HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]);
251         Polygon(fe->hdc_bm, pts, npoints);
252         SelectObject(fe->hdc_bm, oldbrush);
253         SelectObject(fe->hdc_bm, oldpen);
254     } else {
255         HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]);
256         Polyline(fe->hdc_bm, pts, npoints+1);
257         SelectObject(fe->hdc_bm, oldpen);
258     }
259
260     sfree(pts);
261 }
262
263 void start_draw(frontend *fe)
264 {
265     HDC hdc_win;
266     hdc_win = GetDC(fe->hwnd);
267     fe->hdc_bm = CreateCompatibleDC(hdc_win);
268     fe->prevbm = SelectObject(fe->hdc_bm, fe->bitmap);
269     ReleaseDC(fe->hwnd, hdc_win);
270     fe->clip = NULL;
271     SetMapMode(fe->hdc_bm, MM_TEXT);
272 }
273
274 void draw_update(frontend *fe, int x, int y, int w, int h)
275 {
276     RECT r;
277
278     r.left = x;
279     r.top = y;
280     r.right = x + w;
281     r.bottom = y + h;
282
283     InvalidateRect(fe->hwnd, &r, FALSE);
284 }
285
286 void end_draw(frontend *fe)
287 {
288     SelectObject(fe->hdc_bm, fe->prevbm);
289     DeleteDC(fe->hdc_bm);
290     if (fe->clip) {
291         DeleteObject(fe->clip);
292         fe->clip = NULL;
293     }
294 }
295
296 void deactivate_timer(frontend *fe)
297 {
298     KillTimer(fe->hwnd, fe->timer);
299     fe->timer = 0;
300 }
301
302 void activate_timer(frontend *fe)
303 {
304     fe->timer = SetTimer(fe->hwnd, fe->timer, 20, NULL);
305 }
306
307 static frontend *new_window(HINSTANCE inst)
308 {
309     frontend *fe;
310     int x, y;
311     RECT r, sr;
312     HDC hdc;
313
314     fe = snew(frontend);
315     fe->me = midend_new(fe);
316     fe->inst = inst;
317     midend_new_game(fe->me, NULL);
318     midend_size(fe->me, &x, &y);
319
320     fe->timer = 0;
321
322     {
323         int i, ncolours;
324         float *colours;
325
326         colours = midend_colours(fe->me, &ncolours);
327
328         fe->colours = snewn(ncolours, COLORREF);
329         fe->brushes = snewn(ncolours, HBRUSH);
330         fe->pens = snewn(ncolours, HPEN);
331
332         for (i = 0; i < ncolours; i++) {
333             fe->colours[i] = RGB(255 * colours[i*3+0],
334                                  255 * colours[i*3+1],
335                                  255 * colours[i*3+2]);
336             fe->brushes[i] = CreateSolidBrush(fe->colours[i]);
337             fe->pens[i] = CreatePen(PS_SOLID, 1, fe->colours[i]);
338         }
339     }
340
341     r.left = r.top = 0;
342     r.right = x;
343     r.bottom = y;
344     AdjustWindowRectEx(&r, WS_OVERLAPPEDWINDOW &~
345                        (WS_THICKFRAME | WS_MAXIMIZEBOX | WS_OVERLAPPED),
346                        TRUE, 0);
347
348     fe->hwnd = CreateWindowEx(0, game_name, game_name,
349                               WS_OVERLAPPEDWINDOW &~
350                               (WS_THICKFRAME | WS_MAXIMIZEBOX),
351                               CW_USEDEFAULT, CW_USEDEFAULT,
352                               r.right - r.left, r.bottom - r.top,
353                               NULL, NULL, inst, NULL);
354
355     {
356         HMENU bar = CreateMenu();
357         HMENU menu = CreateMenu();
358
359         AppendMenu(bar, MF_ENABLED|MF_POPUP, (UINT)menu, "Game");
360         AppendMenu(menu, MF_ENABLED, IDM_NEW, "New");
361         AppendMenu(menu, MF_ENABLED, IDM_RESTART, "Restart");
362
363         if ((fe->npresets = midend_num_presets(fe->me)) > 0 ||
364             game_can_configure) {
365             HMENU sub = CreateMenu();
366             int i;
367
368             AppendMenu(bar, MF_ENABLED|MF_POPUP, (UINT)sub, "Type");
369
370             fe->presets = snewn(fe->npresets, game_params *);
371
372             for (i = 0; i < fe->npresets; i++) {
373                 char *name;
374
375                 midend_fetch_preset(fe->me, i, &name, &fe->presets[i]);
376
377                 /*
378                  * FIXME: we ought to go through and do something
379                  * with ampersands here.
380                  */
381
382                 AppendMenu(sub, MF_ENABLED, IDM_PRESETS + 0x10 * i, name);
383             }
384
385             if (game_can_configure) {
386                 AppendMenu(sub, MF_ENABLED, IDM_CONFIG, "Custom...");
387             }
388         }
389
390         AppendMenu(menu, MF_SEPARATOR, 0, 0);
391         AppendMenu(menu, MF_ENABLED, IDM_UNDO, "Undo");
392         AppendMenu(menu, MF_ENABLED, IDM_REDO, "Redo");
393         AppendMenu(menu, MF_SEPARATOR, 0, 0);
394         AppendMenu(menu, MF_ENABLED, IDM_QUIT, "Exit");
395         SetMenu(fe->hwnd, bar);
396     }
397
398     if (midend_wants_statusbar(fe->me)) {
399         fe->statusbar = CreateWindowEx(0, STATUSCLASSNAME, "ooh",
400                                        WS_CHILD | WS_VISIBLE,
401                                        0, 0, 0, 0, /* status bar does these */
402                                        fe->hwnd, NULL, inst, NULL);
403         GetWindowRect(fe->statusbar, &sr);
404         SetWindowPos(fe->hwnd, NULL, 0, 0,
405                      r.right - r.left, r.bottom - r.top + sr.bottom - sr.top,
406                      SWP_NOMOVE | SWP_NOZORDER);
407         SetWindowPos(fe->statusbar, NULL, 0, y, x, sr.bottom - sr.top,
408                      SWP_NOZORDER);
409     } else {
410         fe->statusbar = NULL;
411     }
412
413     hdc = GetDC(fe->hwnd);
414     fe->bitmap = CreateCompatibleBitmap(hdc, x, y);
415     ReleaseDC(fe->hwnd, hdc);
416
417     SetWindowLong(fe->hwnd, GWL_USERDATA, (LONG)fe);
418
419     ShowWindow(fe->hwnd, SW_NORMAL);
420     SetForegroundWindow(fe->hwnd);
421
422     midend_redraw(fe->me);
423
424     return fe;
425 }
426
427 static int CALLBACK ConfigDlgProc(HWND hwnd, UINT msg,
428                                   WPARAM wParam, LPARAM lParam)
429 {
430     frontend *fe = (frontend *)GetWindowLong(hwnd, GWL_USERDATA);
431     config_item *i;
432     struct cfg_aux *j;
433
434     switch (msg) {
435       case WM_INITDIALOG:
436         return 0;
437
438       case WM_COMMAND:
439         /*
440          * OK and Cancel are special cases.
441          */
442         if ((HIWORD(wParam) == BN_CLICKED ||
443              HIWORD(wParam) == BN_DOUBLECLICKED) &&
444             (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)) {
445             if (LOWORD(wParam) == IDOK) {
446                 char *err = midend_set_config(fe->me, fe->cfg);
447
448                 if (err) {
449                     MessageBox(hwnd, err, "Validation error",
450                                MB_ICONERROR | MB_OK);
451                 } else {
452                     fe->cfg_done = 2;
453                 }
454             } else {
455                 fe->cfg_done = 1;
456             }
457             return 0;
458         }
459
460         /*
461          * First find the control whose id this is.
462          */
463         for (i = fe->cfg, j = fe->cfgaux; i->type != C_END; i++, j++) {
464             if (j->ctlid == LOWORD(wParam))
465                 break;
466         }
467         if (i->type == C_END)
468             return 0;                  /* not our problem */
469
470         if (i->type == C_STRING && HIWORD(wParam) == EN_CHANGE) {
471             char buffer[4096];
472             GetDlgItemText(fe->cfgbox, j->ctlid, buffer, lenof(buffer));
473             buffer[lenof(buffer)-1] = '\0';
474             sfree(i->sval);
475             i->sval = dupstr(buffer);
476         } else if (i->type == C_BOOLEAN && 
477                    (HIWORD(wParam) == BN_CLICKED ||
478                     HIWORD(wParam) == BN_DOUBLECLICKED)) {
479             i->ival = IsDlgButtonChecked(fe->cfgbox, j->ctlid);
480         } else if (i->type == C_CHOICES &&
481                    HIWORD(wParam) == CBN_SELCHANGE) {
482             i->ival = SendDlgItemMessage(fe->cfgbox, j->ctlid,
483                                          CB_GETCURSEL, 0, 0);
484         }
485
486         return 0;
487
488       case WM_CLOSE:
489         fe->cfg_done = 1;
490         return 0;
491     }
492
493     return 0;
494 }
495
496 HWND mkctrl(frontend *fe, int x1, int x2, int y1, int y2,
497             char *wclass, int wstyle,
498             int exstyle, char *wtext, int wid)
499 {
500     HWND ret;
501     ret = CreateWindowEx(exstyle, wclass, wtext,
502                          wstyle | WS_CHILD | WS_VISIBLE, x1, y1, x2-x1, y2-y1,
503                          fe->cfgbox, (HMENU) wid, fe->inst, NULL);
504     SendMessage(ret, WM_SETFONT, (WPARAM)fe->cfgfont, MAKELPARAM(TRUE, 0));
505     return ret;
506 }
507
508 static int get_config(frontend *fe)
509 {
510     config_item *i;
511     struct cfg_aux *j;
512     WNDCLASS wc;
513     MSG msg;
514     TEXTMETRIC tm;
515     HDC hdc;
516     HFONT oldfont;
517     SIZE size;
518     HWND ctl;
519     int gm, id, nctrls;
520     int winwidth, winheight, col1l, col1r, col2l, col2r, y;
521     int height, width, maxlabel, maxcheckbox;
522
523     wc.style = CS_DBLCLKS | CS_SAVEBITS | CS_BYTEALIGNWINDOW;
524     wc.lpfnWndProc = DefDlgProc;
525     wc.cbClsExtra = 0;
526     wc.cbWndExtra = DLGWINDOWEXTRA + 8;
527     wc.hInstance = fe->inst;
528     wc.hIcon = NULL;
529     wc.hCursor = LoadCursor(NULL, IDC_ARROW);
530     wc.hbrBackground = (HBRUSH) (COLOR_BACKGROUND +1);
531     wc.lpszMenuName = NULL;
532     wc.lpszClassName = "GameConfigBox";
533     RegisterClass(&wc);
534
535     hdc = GetDC(fe->hwnd);
536     SetMapMode(hdc, MM_TEXT);
537
538     fe->cfg_done = FALSE;
539
540     fe->cfgfont = CreateFont(-MulDiv(8, GetDeviceCaps(hdc, LOGPIXELSY), 72),
541                              0, 0, 0, 0,
542                              FALSE, FALSE, FALSE, DEFAULT_CHARSET,
543                              OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
544                              DEFAULT_QUALITY,
545                              FF_SWISS,
546                              "MS Shell Dlg");
547
548     oldfont = SelectObject(hdc, fe->cfgfont);
549     if (GetTextMetrics(hdc, &tm)) {
550         height = tm.tmAscent + tm.tmDescent;
551         width = tm.tmAveCharWidth;
552     } else {
553         height = width = 30;
554     }
555
556     fe->cfg = midend_get_config(fe->me);
557
558     /*
559      * Figure out the layout of the config box by measuring the
560      * length of each piece of text.
561      */
562     maxlabel = maxcheckbox = 0;
563     winheight = height/2;
564
565     for (i = fe->cfg; i->type != C_END; i++) {
566         switch (i->type) {
567           case C_STRING:
568           case C_CHOICES:
569             /*
570              * Both these control types have a label filling only
571              * the left-hand column of the box.
572              */
573             if (GetTextExtentPoint32(hdc, i->name, strlen(i->name), &size) &&
574                 maxlabel < size.cx)
575                 maxlabel = size.cx;
576             winheight += height * 3 / 2 + (height / 2);
577             break;
578
579           case C_BOOLEAN:
580             /*
581              * Checkboxes take up the whole of the box width.
582              */
583             if (GetTextExtentPoint32(hdc, i->name, strlen(i->name), &size) &&
584                 maxcheckbox < size.cx)
585                 maxcheckbox = size.cx;
586             winheight += height + (height / 2);
587             break;
588         }
589     }
590
591     winheight += height + height * 7 / 4;      /* OK / Cancel buttons */
592
593     col1l = 2*width;
594     col1r = col1l + maxlabel;
595     col2l = col1r + 2*width;
596     col2r = col2l + 30*width;
597     if (col2r < col1l+2*height+maxcheckbox)
598         col2r = col1l+2*height+maxcheckbox;
599     winwidth = col2r + 2*width;
600
601     ReleaseDC(fe->hwnd, hdc);
602
603     /*
604      * Create the dialog, now that we know its size.
605      */
606     {
607         RECT r, r2;
608
609         r.left = r.top = 0;
610         r.right = winwidth;
611         r.bottom = winheight;
612
613         AdjustWindowRectEx(&r, (WS_OVERLAPPEDWINDOW /*|
614                                 DS_MODALFRAME | WS_POPUP | WS_VISIBLE |
615                                 WS_CAPTION | WS_SYSMENU*/) &~
616                            (WS_MAXIMIZEBOX | WS_OVERLAPPED),
617                            FALSE, 0);
618
619         /*
620          * Centre the dialog on its parent window.
621          */
622         r.right -= r.left;
623         r.bottom -= r.top;
624         GetWindowRect(fe->hwnd, &r2);
625         r.left = (r2.left + r2.right - r.right) / 2;
626         r.top = (r2.top + r2.bottom - r.bottom) / 2;
627         r.right += r.left;
628         r.bottom += r.top;
629
630         fe->cfgbox = CreateWindowEx(0, wc.lpszClassName, "Configuration",
631                                     DS_MODALFRAME | WS_POPUP | WS_VISIBLE |
632                                     WS_CAPTION | WS_SYSMENU,
633                                     r.left, r.top,
634                                     r.right-r.left, r.bottom-r.top,
635                                     fe->hwnd, NULL, fe->inst, NULL);
636     }
637
638     SendMessage(fe->cfgbox, WM_SETFONT, (WPARAM)fe->cfgfont, FALSE);
639
640     SetWindowLong(fe->cfgbox, GWL_USERDATA, (LONG)fe);
641     SetWindowLong(fe->cfgbox, DWL_DLGPROC, (LONG)ConfigDlgProc);
642
643     /*
644      * Count the controls so we can allocate cfgaux.
645      */
646     for (nctrls = 0, i = fe->cfg; i->type != C_END; i++)
647         nctrls++;
648     fe->cfgaux = snewn(nctrls, struct cfg_aux);
649
650     id = 1000;
651     y = height/2;
652     for (i = fe->cfg, j = fe->cfgaux; i->type != C_END; i++, j++) {
653         switch (i->type) {
654           case C_STRING:
655             /*
656              * Edit box with a label beside it.
657              */
658             mkctrl(fe, col1l, col1r, y+height*1/8, y+height*9/8,
659                    "Static", 0, 0, i->name, id++);
660             ctl = mkctrl(fe, col2l, col2r, y, y+height*3/2,
661                          "EDIT", WS_TABSTOP | ES_AUTOHSCROLL,
662                          WS_EX_CLIENTEDGE, "", (j->ctlid = id++));
663             SetWindowText(ctl, i->sval);
664             y += height*3/2;
665             break;
666
667           case C_BOOLEAN:
668             /*
669              * Simple checkbox.
670              */
671             mkctrl(fe, col1l, col2r, y, y+height, "BUTTON",
672                    BS_NOTIFY | BS_AUTOCHECKBOX | WS_TABSTOP,
673                    0, i->name, (j->ctlid = id++));
674             y += height;
675             break;
676
677           case C_CHOICES:
678             /*
679              * Drop-down list with a label beside it.
680              */
681             mkctrl(fe, col1l, col1r, y+height*1/8, y+height*9/8,
682                    "STATIC", 0, 0, i->name, id++);
683             ctl = mkctrl(fe, col2l, col2r, y, y+height*41/2,
684                          "COMBOBOX", WS_TABSTOP |
685                          CBS_DROPDOWNLIST | CBS_HASSTRINGS,
686                          WS_EX_CLIENTEDGE, "", (j->ctlid = id++));
687             {
688                 char c, *p, *q, *str;
689
690                 SendMessage(ctl, CB_RESETCONTENT, 0, 0);
691                 p = i->sval;
692                 c = *p++;
693                 while (*p) {
694                     q = p;
695                     while (*q && *q != c) q++;
696                     str = snewn(q-p+1, char);
697                     strncpy(str, p, q-p);
698                     str[q-p] = '\0';
699                     SendMessage(ctl, CB_ADDSTRING, 0, (LPARAM)str);
700                     sfree(str);
701                     if (*q) q++;
702                     p = q;
703                 }
704             }
705
706             SendMessage(ctl, CB_SETCURSEL, i->ival, 0);
707
708             y += height*3/2;
709             break;
710         }
711
712         assert(y < winheight);
713         y += height/2;
714     }
715
716     y += height/2;                     /* extra space before OK and Cancel */
717     mkctrl(fe, col1l, (col1l+col2r)/2-width, y, y+height*7/4, "BUTTON",
718            BS_PUSHBUTTON | BS_NOTIFY | WS_TABSTOP | BS_DEFPUSHBUTTON, 0,
719            "OK", IDOK);
720     mkctrl(fe, (col1l+col2r)/2+width, col2r, y, y+height*7/4, "BUTTON",
721            BS_PUSHBUTTON | BS_NOTIFY | WS_TABSTOP, 0, "Cancel", IDCANCEL);
722
723     SendMessage(fe->cfgbox, WM_INITDIALOG, 0, 0);
724
725     EnableWindow(fe->hwnd, FALSE);
726     ShowWindow(fe->cfgbox, SW_NORMAL);
727     while ((gm=GetMessage(&msg, NULL, 0, 0)) > 0) {
728         if (!IsDialogMessage(fe->cfgbox, &msg))
729             DispatchMessage(&msg);
730         if (fe->cfg_done)
731             break;
732     }
733     EnableWindow(fe->hwnd, TRUE);
734     SetForegroundWindow(fe->hwnd);
735     DestroyWindow(fe->cfgbox);
736     DeleteObject(fe->cfgfont);
737
738     free_cfg(fe->cfg);
739     sfree(fe->cfgaux);
740
741     return (fe->cfg_done == 2);
742 }
743
744 static void new_game_type(frontend *fe)
745 {
746     RECT r, sr;
747     HDC hdc;
748     int x, y;
749
750     midend_new_game(fe->me, NULL);
751     midend_size(fe->me, &x, &y);
752
753     r.left = r.top = 0;
754     r.right = x;
755     r.bottom = y;
756     AdjustWindowRectEx(&r, WS_OVERLAPPEDWINDOW &~
757                        (WS_THICKFRAME | WS_MAXIMIZEBOX |
758                         WS_OVERLAPPED),
759                        TRUE, 0);
760
761     if (fe->statusbar != NULL) {
762         GetWindowRect(fe->statusbar, &sr);
763     } else {
764         sr.left = sr.right = sr.top = sr.bottom = 0;
765     }
766     SetWindowPos(fe->hwnd, NULL, 0, 0,
767                  r.right - r.left,
768                  r.bottom - r.top + sr.bottom - sr.top,
769                  SWP_NOMOVE | SWP_NOZORDER);
770     if (fe->statusbar != NULL)
771         SetWindowPos(fe->statusbar, NULL, 0, y, x,
772                      sr.bottom - sr.top, SWP_NOZORDER);
773
774     DeleteObject(fe->bitmap);
775
776     hdc = GetDC(fe->hwnd);
777     fe->bitmap = CreateCompatibleBitmap(hdc, x, y);
778     ReleaseDC(fe->hwnd, hdc);
779
780     midend_redraw(fe->me);
781 }
782
783 static LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
784                                 WPARAM wParam, LPARAM lParam)
785 {
786     frontend *fe = (frontend *)GetWindowLong(hwnd, GWL_USERDATA);
787
788     switch (message) {
789       case WM_CLOSE:
790         DestroyWindow(hwnd);
791         return 0;
792       case WM_COMMAND:
793         switch (wParam & ~0xF) {       /* low 4 bits reserved to Windows */
794           case IDM_NEW:
795             if (!midend_process_key(fe->me, 0, 0, 'n'))
796                 PostQuitMessage(0);
797             break;
798           case IDM_RESTART:
799             if (!midend_process_key(fe->me, 0, 0, 'r'))
800                 PostQuitMessage(0);
801             break;
802           case IDM_UNDO:
803             if (!midend_process_key(fe->me, 0, 0, 'u'))
804                 PostQuitMessage(0);
805             break;
806           case IDM_REDO:
807             if (!midend_process_key(fe->me, 0, 0, '\x12'))
808                 PostQuitMessage(0);
809             break;
810           case IDM_QUIT:
811             if (!midend_process_key(fe->me, 0, 0, 'q'))
812                 PostQuitMessage(0);
813             break;
814           case IDM_CONFIG:
815             if (get_config(fe))
816                 new_game_type(fe);
817             break;
818           default:
819             {
820                 int p = ((wParam &~ 0xF) - IDM_PRESETS) / 0x10;
821
822                 if (p >= 0 && p < fe->npresets) {
823                     midend_set_params(fe->me, fe->presets[p]);
824                     new_game_type(fe);
825                 }
826             }
827             break;
828         }
829         break;
830       case WM_DESTROY:
831         PostQuitMessage(0);
832         return 0;
833       case WM_PAINT:
834         {
835             PAINTSTRUCT p;
836             HDC hdc, hdc2;
837             HBITMAP prevbm;
838
839             hdc = BeginPaint(hwnd, &p);
840             hdc2 = CreateCompatibleDC(hdc);
841             prevbm = SelectObject(hdc2, fe->bitmap);
842             BitBlt(hdc,
843                    p.rcPaint.left, p.rcPaint.top,
844                    p.rcPaint.right - p.rcPaint.left,
845                    p.rcPaint.bottom - p.rcPaint.top,
846                    hdc2,
847                    p.rcPaint.left, p.rcPaint.top,
848                    SRCCOPY);
849             SelectObject(hdc2, prevbm);
850             DeleteDC(hdc2);
851             EndPaint(hwnd, &p);
852         }
853         return 0;
854       case WM_KEYDOWN:
855         {
856             int key = -1;
857
858             switch (wParam) {
859               case VK_LEFT: key = CURSOR_LEFT; break;
860               case VK_RIGHT: key = CURSOR_RIGHT; break;
861               case VK_UP: key = CURSOR_UP; break;
862               case VK_DOWN: key = CURSOR_DOWN; break;
863                 /*
864                  * Diagonal keys on the numeric keypad.
865                  */
866               case VK_PRIOR:
867                 if (!(lParam & 0x01000000)) key = CURSOR_UP_RIGHT;
868                 break;
869               case VK_NEXT:
870                 if (!(lParam & 0x01000000)) key = CURSOR_DOWN_RIGHT;
871                 break;
872               case VK_HOME:
873                 if (!(lParam & 0x01000000)) key = CURSOR_UP_LEFT;
874                 break;
875               case VK_END:
876                 if (!(lParam & 0x01000000)) key = CURSOR_DOWN_LEFT;
877                 break;
878                 /*
879                  * Numeric keypad keys with Num Lock on.
880                  */
881               case VK_NUMPAD4: key = CURSOR_LEFT; break;
882               case VK_NUMPAD6: key = CURSOR_RIGHT; break;
883               case VK_NUMPAD8: key = CURSOR_UP; break;
884               case VK_NUMPAD2: key = CURSOR_DOWN; break;
885               case VK_NUMPAD9: key = CURSOR_UP_RIGHT; break;
886               case VK_NUMPAD3: key = CURSOR_DOWN_RIGHT; break;
887               case VK_NUMPAD7: key = CURSOR_UP_LEFT; break;
888               case VK_NUMPAD1: key = CURSOR_DOWN_LEFT; break;
889             }
890
891             if (key != -1) {
892                 if (!midend_process_key(fe->me, 0, 0, key))
893                     PostQuitMessage(0);
894             } else {
895                 MSG m;
896                 m.hwnd = hwnd;
897                 m.message = WM_KEYDOWN;
898                 m.wParam = wParam;
899                 m.lParam = lParam & 0xdfff;
900                 TranslateMessage(&m);
901             }
902         }
903         break;
904       case WM_LBUTTONDOWN:
905       case WM_RBUTTONDOWN:
906       case WM_MBUTTONDOWN:
907         {
908             int button;
909
910             /*
911              * Shift-clicks count as middle-clicks, since otherwise
912              * two-button Windows users won't have any kind of
913              * middle click to use.
914              */
915             if (message == WM_MBUTTONDOWN || (wParam & MK_SHIFT))
916                 button = MIDDLE_BUTTON;
917             else if (message == WM_LBUTTONDOWN)
918                 button = LEFT_BUTTON;
919             else
920                 button = RIGHT_BUTTON;
921                 
922             if (!midend_process_key(fe->me, LOWORD(lParam),
923                                     HIWORD(lParam), button))
924                 PostQuitMessage(0);
925         }
926         break;
927       case WM_CHAR:
928         if (!midend_process_key(fe->me, 0, 0, (unsigned char)wParam))
929             PostQuitMessage(0);
930         return 0;
931       case WM_TIMER:
932         if (fe->timer)
933             midend_timer(fe->me, (float)0.02);
934         return 0;
935     }
936
937     return DefWindowProc(hwnd, message, wParam, lParam);
938 }
939
940 int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show)
941 {
942     MSG msg;
943
944     srand(time(NULL));
945
946     InitCommonControls();
947
948     if (!prev) {
949         WNDCLASS wndclass;
950
951         wndclass.style = 0;
952         wndclass.lpfnWndProc = WndProc;
953         wndclass.cbClsExtra = 0;
954         wndclass.cbWndExtra = 0;
955         wndclass.hInstance = inst;
956         wndclass.hIcon = LoadIcon(inst, IDI_APPLICATION);
957         wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
958         wndclass.hbrBackground = NULL;
959         wndclass.lpszMenuName = NULL;
960         wndclass.lpszClassName = game_name;
961
962         RegisterClass(&wndclass);
963     }
964
965     new_window(inst);
966
967     while (GetMessage(&msg, NULL, 0, 0)) {
968         DispatchMessage(&msg);
969     }
970
971     return msg.wParam;
972 }