| 1 | /* |
| 2 | * windows.c: Windows front end for my puzzle collection. |
| 3 | */ |
| 4 | |
| 5 | #include <windows.h> |
| 6 | |
| 7 | #include <stdio.h> |
| 8 | #include <stdarg.h> |
| 9 | #include <stdlib.h> |
| 10 | #include <time.h> |
| 11 | |
| 12 | #include "puzzles.h" |
| 13 | |
| 14 | #define IDM_NEW 0x0010 |
| 15 | #define IDM_RESTART 0x0020 |
| 16 | #define IDM_UNDO 0x0030 |
| 17 | #define IDM_REDO 0x0040 |
| 18 | #define IDM_QUIT 0x0050 |
| 19 | #define IDM_PRESETS 0x0100 |
| 20 | |
| 21 | #ifdef DEBUG |
| 22 | static FILE *debug_fp = NULL; |
| 23 | static HANDLE debug_hdl = INVALID_HANDLE_VALUE; |
| 24 | static int debug_got_console = 0; |
| 25 | |
| 26 | void dputs(char *buf) |
| 27 | { |
| 28 | DWORD dw; |
| 29 | |
| 30 | if (!debug_got_console) { |
| 31 | if (AllocConsole()) { |
| 32 | debug_got_console = 1; |
| 33 | debug_hdl = GetStdHandle(STD_OUTPUT_HANDLE); |
| 34 | } |
| 35 | } |
| 36 | if (!debug_fp) { |
| 37 | debug_fp = fopen("debug.log", "w"); |
| 38 | } |
| 39 | |
| 40 | if (debug_hdl != INVALID_HANDLE_VALUE) { |
| 41 | WriteFile(debug_hdl, buf, strlen(buf), &dw, NULL); |
| 42 | } |
| 43 | fputs(buf, debug_fp); |
| 44 | fflush(debug_fp); |
| 45 | } |
| 46 | |
| 47 | void debug_printf(char *fmt, ...) |
| 48 | { |
| 49 | char buf[4096]; |
| 50 | va_list ap; |
| 51 | |
| 52 | va_start(ap, fmt); |
| 53 | vsprintf(buf, fmt, ap); |
| 54 | dputs(buf); |
| 55 | va_end(ap); |
| 56 | } |
| 57 | |
| 58 | #define debug(x) (debug_printf x) |
| 59 | |
| 60 | #else |
| 61 | |
| 62 | #define debug(x) |
| 63 | |
| 64 | #endif |
| 65 | |
| 66 | struct frontend { |
| 67 | midend_data *me; |
| 68 | HWND hwnd; |
| 69 | HBITMAP bitmap, prevbm; |
| 70 | HDC hdc_bm; |
| 71 | COLORREF *colours; |
| 72 | HBRUSH *brushes; |
| 73 | HPEN *pens; |
| 74 | UINT timer; |
| 75 | int npresets; |
| 76 | game_params **presets; |
| 77 | }; |
| 78 | |
| 79 | void fatal(char *fmt, ...) |
| 80 | { |
| 81 | char buf[2048]; |
| 82 | va_list ap; |
| 83 | |
| 84 | va_start(ap, fmt); |
| 85 | vsprintf(buf, fmt, ap); |
| 86 | va_end(ap); |
| 87 | |
| 88 | MessageBox(NULL, buf, "Fatal error", MB_ICONEXCLAMATION | MB_OK); |
| 89 | |
| 90 | exit(1); |
| 91 | } |
| 92 | |
| 93 | void frontend_default_colour(frontend *fe, float *output) |
| 94 | { |
| 95 | DWORD c = GetSysColor(COLOR_MENU); /* ick */ |
| 96 | |
| 97 | output[0] = (float)(GetRValue(c) / 255.0); |
| 98 | output[1] = (float)(GetGValue(c) / 255.0); |
| 99 | output[2] = (float)(GetBValue(c) / 255.0); |
| 100 | } |
| 101 | |
| 102 | void draw_rect(frontend *fe, int x, int y, int w, int h, int colour) |
| 103 | { |
| 104 | if (w == 1 && h == 1) { |
| 105 | /* |
| 106 | * Rectangle() appears to get uppity if asked to draw a 1x1 |
| 107 | * rectangle, presumably on the grounds that that's beneath |
| 108 | * its dignity and you ought to be using SetPixel instead. |
| 109 | * So I will. |
| 110 | */ |
| 111 | SetPixel(fe->hdc_bm, x, y, fe->colours[colour]); |
| 112 | } else { |
| 113 | HBRUSH oldbrush = SelectObject(fe->hdc_bm, fe->brushes[colour]); |
| 114 | HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]); |
| 115 | Rectangle(fe->hdc_bm, x, y, x+w, y+h); |
| 116 | SelectObject(fe->hdc_bm, oldbrush); |
| 117 | SelectObject(fe->hdc_bm, oldpen); |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour) |
| 122 | { |
| 123 | HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]); |
| 124 | MoveToEx(fe->hdc_bm, x1, y1, NULL); |
| 125 | LineTo(fe->hdc_bm, x2, y2); |
| 126 | SetPixel(fe->hdc_bm, x2, y2, fe->colours[colour]); |
| 127 | SelectObject(fe->hdc_bm, oldpen); |
| 128 | } |
| 129 | |
| 130 | void draw_polygon(frontend *fe, int *coords, int npoints, |
| 131 | int fill, int colour) |
| 132 | { |
| 133 | POINT *pts = snewn(npoints+1, POINT); |
| 134 | int i; |
| 135 | |
| 136 | for (i = 0; i <= npoints; i++) { |
| 137 | int j = (i < npoints ? i : 0); |
| 138 | pts[i].x = coords[j*2]; |
| 139 | pts[i].y = coords[j*2+1]; |
| 140 | } |
| 141 | |
| 142 | if (fill) { |
| 143 | HBRUSH oldbrush = SelectObject(fe->hdc_bm, fe->brushes[colour]); |
| 144 | HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]); |
| 145 | Polygon(fe->hdc_bm, pts, npoints); |
| 146 | SelectObject(fe->hdc_bm, oldbrush); |
| 147 | SelectObject(fe->hdc_bm, oldpen); |
| 148 | } else { |
| 149 | HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]); |
| 150 | Polyline(fe->hdc_bm, pts, npoints+1); |
| 151 | SelectObject(fe->hdc_bm, oldpen); |
| 152 | } |
| 153 | |
| 154 | sfree(pts); |
| 155 | } |
| 156 | |
| 157 | void start_draw(frontend *fe) |
| 158 | { |
| 159 | HDC hdc_win; |
| 160 | hdc_win = GetDC(fe->hwnd); |
| 161 | fe->hdc_bm = CreateCompatibleDC(hdc_win); |
| 162 | fe->prevbm = SelectObject(fe->hdc_bm, fe->bitmap); |
| 163 | ReleaseDC(fe->hwnd, hdc_win); |
| 164 | } |
| 165 | |
| 166 | void draw_update(frontend *fe, int x, int y, int w, int h) |
| 167 | { |
| 168 | RECT r; |
| 169 | |
| 170 | r.left = x; |
| 171 | r.top = y; |
| 172 | r.right = x + w; |
| 173 | r.bottom = y + h; |
| 174 | |
| 175 | InvalidateRect(fe->hwnd, &r, FALSE); |
| 176 | } |
| 177 | |
| 178 | void end_draw(frontend *fe) |
| 179 | { |
| 180 | SelectObject(fe->hdc_bm, fe->prevbm); |
| 181 | DeleteDC(fe->hdc_bm); |
| 182 | } |
| 183 | |
| 184 | void deactivate_timer(frontend *fe) |
| 185 | { |
| 186 | KillTimer(fe->hwnd, fe->timer); |
| 187 | fe->timer = 0; |
| 188 | } |
| 189 | |
| 190 | void activate_timer(frontend *fe) |
| 191 | { |
| 192 | fe->timer = SetTimer(fe->hwnd, fe->timer, 20, NULL); |
| 193 | } |
| 194 | |
| 195 | static frontend *new_window(HINSTANCE inst) |
| 196 | { |
| 197 | frontend *fe; |
| 198 | int x, y; |
| 199 | RECT r; |
| 200 | HDC hdc; |
| 201 | |
| 202 | fe = snew(frontend); |
| 203 | fe->me = midend_new(fe); |
| 204 | midend_new_game(fe->me, NULL); |
| 205 | midend_size(fe->me, &x, &y); |
| 206 | |
| 207 | fe->timer = 0; |
| 208 | |
| 209 | { |
| 210 | int i, ncolours; |
| 211 | float *colours; |
| 212 | |
| 213 | colours = midend_colours(fe->me, &ncolours); |
| 214 | |
| 215 | fe->colours = snewn(ncolours, COLORREF); |
| 216 | fe->brushes = snewn(ncolours, HBRUSH); |
| 217 | fe->pens = snewn(ncolours, HPEN); |
| 218 | |
| 219 | for (i = 0; i < ncolours; i++) { |
| 220 | fe->colours[i] = RGB(255 * colours[i*3+0], |
| 221 | 255 * colours[i*3+1], |
| 222 | 255 * colours[i*3+2]); |
| 223 | fe->brushes[i] = CreateSolidBrush(fe->colours[i]); |
| 224 | if (!fe->brushes[i]) |
| 225 | MessageBox(fe->hwnd, "ooh", "eck", MB_OK); |
| 226 | fe->pens[i] = CreatePen(PS_SOLID, 1, fe->colours[i]); |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | r.left = r.top = 0; |
| 231 | r.right = x; |
| 232 | r.bottom = y; |
| 233 | AdjustWindowRectEx(&r, WS_OVERLAPPEDWINDOW &~ |
| 234 | (WS_THICKFRAME | WS_MAXIMIZEBOX | WS_OVERLAPPED), |
| 235 | TRUE, 0); |
| 236 | |
| 237 | fe->hwnd = CreateWindowEx(0, "puzzle", "puzzle", |
| 238 | WS_OVERLAPPEDWINDOW &~ |
| 239 | (WS_THICKFRAME | WS_MAXIMIZEBOX), |
| 240 | CW_USEDEFAULT, CW_USEDEFAULT, |
| 241 | r.right - r.left, r.bottom - r.top, |
| 242 | NULL, NULL, inst, NULL); |
| 243 | |
| 244 | { |
| 245 | HMENU bar = CreateMenu(); |
| 246 | HMENU menu = CreateMenu(); |
| 247 | |
| 248 | AppendMenu(bar, MF_ENABLED|MF_POPUP, (UINT)menu, "Game"); |
| 249 | AppendMenu(menu, MF_ENABLED, IDM_NEW, "New"); |
| 250 | AppendMenu(menu, MF_ENABLED, IDM_RESTART, "Restart"); |
| 251 | |
| 252 | if ((fe->npresets = midend_num_presets(fe->me)) > 0) { |
| 253 | HMENU sub = CreateMenu(); |
| 254 | int i; |
| 255 | |
| 256 | AppendMenu(menu, MF_ENABLED|MF_POPUP, (UINT)sub, "Type"); |
| 257 | |
| 258 | fe->presets = snewn(fe->npresets, game_params *); |
| 259 | |
| 260 | for (i = 0; i < fe->npresets; i++) { |
| 261 | char *name; |
| 262 | |
| 263 | midend_fetch_preset(fe->me, i, &name, &fe->presets[i]); |
| 264 | |
| 265 | /* |
| 266 | * FIXME: we ought to go through and do something |
| 267 | * with ampersands here. |
| 268 | */ |
| 269 | |
| 270 | AppendMenu(sub, MF_ENABLED, IDM_PRESETS + 0x10 * i, name); |
| 271 | } |
| 272 | } |
| 273 | |
| 274 | AppendMenu(menu, MF_SEPARATOR, 0, 0); |
| 275 | AppendMenu(menu, MF_ENABLED, IDM_UNDO, "Undo"); |
| 276 | AppendMenu(menu, MF_ENABLED, IDM_REDO, "Redo"); |
| 277 | AppendMenu(menu, MF_SEPARATOR, 0, 0); |
| 278 | AppendMenu(menu, MF_ENABLED, IDM_QUIT, "Exit"); |
| 279 | SetMenu(fe->hwnd, bar); |
| 280 | } |
| 281 | |
| 282 | hdc = GetDC(fe->hwnd); |
| 283 | fe->bitmap = CreateCompatibleBitmap(hdc, x, y); |
| 284 | ReleaseDC(fe->hwnd, hdc); |
| 285 | |
| 286 | SetWindowLong(fe->hwnd, GWL_USERDATA, (LONG)fe); |
| 287 | |
| 288 | ShowWindow(fe->hwnd, SW_NORMAL); |
| 289 | SetForegroundWindow(fe->hwnd); |
| 290 | |
| 291 | midend_redraw(fe->me); |
| 292 | |
| 293 | return fe; |
| 294 | } |
| 295 | |
| 296 | static LRESULT CALLBACK WndProc(HWND hwnd, UINT message, |
| 297 | WPARAM wParam, LPARAM lParam) |
| 298 | { |
| 299 | frontend *fe = (frontend *)GetWindowLong(hwnd, GWL_USERDATA); |
| 300 | |
| 301 | switch (message) { |
| 302 | case WM_CLOSE: |
| 303 | DestroyWindow(hwnd); |
| 304 | return 0; |
| 305 | case WM_COMMAND: |
| 306 | switch (wParam & ~0xF) { /* low 4 bits reserved to Windows */ |
| 307 | case IDM_NEW: |
| 308 | if (!midend_process_key(fe->me, 0, 0, 'n')) |
| 309 | PostQuitMessage(0); |
| 310 | break; |
| 311 | case IDM_RESTART: |
| 312 | if (!midend_process_key(fe->me, 0, 0, 'r')) |
| 313 | PostQuitMessage(0); |
| 314 | break; |
| 315 | case IDM_UNDO: |
| 316 | if (!midend_process_key(fe->me, 0, 0, 'u')) |
| 317 | PostQuitMessage(0); |
| 318 | break; |
| 319 | case IDM_REDO: |
| 320 | if (!midend_process_key(fe->me, 0, 0, '\x12')) |
| 321 | PostQuitMessage(0); |
| 322 | break; |
| 323 | case IDM_QUIT: |
| 324 | if (!midend_process_key(fe->me, 0, 0, 'q')) |
| 325 | PostQuitMessage(0); |
| 326 | break; |
| 327 | default: |
| 328 | { |
| 329 | int p = ((wParam &~ 0xF) - IDM_PRESETS) / 0x10; |
| 330 | |
| 331 | if (p >= 0 && p < fe->npresets) { |
| 332 | RECT r; |
| 333 | HDC hdc; |
| 334 | int x, y; |
| 335 | |
| 336 | midend_set_params(fe->me, fe->presets[p]); |
| 337 | midend_new_game(fe->me, NULL); |
| 338 | midend_size(fe->me, &x, &y); |
| 339 | |
| 340 | r.left = r.top = 0; |
| 341 | r.right = x; |
| 342 | r.bottom = y; |
| 343 | AdjustWindowRectEx(&r, WS_OVERLAPPEDWINDOW &~ |
| 344 | (WS_THICKFRAME | WS_MAXIMIZEBOX | |
| 345 | WS_OVERLAPPED), |
| 346 | TRUE, 0); |
| 347 | |
| 348 | SetWindowPos(fe->hwnd, NULL, 0, 0, |
| 349 | r.right - r.left, r.bottom - r.top, |
| 350 | SWP_NOMOVE | SWP_NOZORDER); |
| 351 | |
| 352 | DeleteObject(fe->bitmap); |
| 353 | |
| 354 | hdc = GetDC(fe->hwnd); |
| 355 | fe->bitmap = CreateCompatibleBitmap(hdc, x, y); |
| 356 | ReleaseDC(fe->hwnd, hdc); |
| 357 | |
| 358 | midend_redraw(fe->me); |
| 359 | } |
| 360 | } |
| 361 | break; |
| 362 | } |
| 363 | break; |
| 364 | case WM_DESTROY: |
| 365 | PostQuitMessage(0); |
| 366 | return 0; |
| 367 | case WM_PAINT: |
| 368 | { |
| 369 | PAINTSTRUCT p; |
| 370 | HDC hdc, hdc2; |
| 371 | HBITMAP prevbm; |
| 372 | |
| 373 | hdc = BeginPaint(hwnd, &p); |
| 374 | hdc2 = CreateCompatibleDC(hdc); |
| 375 | prevbm = SelectObject(hdc2, fe->bitmap); |
| 376 | BitBlt(hdc, |
| 377 | p.rcPaint.left, p.rcPaint.top, |
| 378 | p.rcPaint.right - p.rcPaint.left, |
| 379 | p.rcPaint.bottom - p.rcPaint.top, |
| 380 | hdc2, |
| 381 | p.rcPaint.left, p.rcPaint.top, |
| 382 | SRCCOPY); |
| 383 | SelectObject(hdc2, prevbm); |
| 384 | DeleteDC(hdc2); |
| 385 | EndPaint(hwnd, &p); |
| 386 | } |
| 387 | return 0; |
| 388 | case WM_KEYDOWN: |
| 389 | { |
| 390 | int key = -1; |
| 391 | |
| 392 | switch (wParam) { |
| 393 | case VK_LEFT: key = CURSOR_LEFT; break; |
| 394 | case VK_RIGHT: key = CURSOR_RIGHT; break; |
| 395 | case VK_UP: key = CURSOR_UP; break; |
| 396 | case VK_DOWN: key = CURSOR_DOWN; break; |
| 397 | /* |
| 398 | * Diagonal keys on the numeric keypad. |
| 399 | */ |
| 400 | case VK_PRIOR: |
| 401 | if (!(lParam & 0x01000000)) key = CURSOR_UP_RIGHT; |
| 402 | break; |
| 403 | case VK_NEXT: |
| 404 | if (!(lParam & 0x01000000)) key = CURSOR_DOWN_RIGHT; |
| 405 | break; |
| 406 | case VK_HOME: |
| 407 | if (!(lParam & 0x01000000)) key = CURSOR_UP_LEFT; |
| 408 | break; |
| 409 | case VK_END: |
| 410 | if (!(lParam & 0x01000000)) key = CURSOR_DOWN_LEFT; |
| 411 | break; |
| 412 | /* |
| 413 | * Numeric keypad keys with Num Lock on. |
| 414 | */ |
| 415 | case VK_NUMPAD4: key = CURSOR_LEFT; break; |
| 416 | case VK_NUMPAD6: key = CURSOR_RIGHT; break; |
| 417 | case VK_NUMPAD8: key = CURSOR_UP; break; |
| 418 | case VK_NUMPAD2: key = CURSOR_DOWN; break; |
| 419 | case VK_NUMPAD9: key = CURSOR_UP_RIGHT; break; |
| 420 | case VK_NUMPAD3: key = CURSOR_DOWN_RIGHT; break; |
| 421 | case VK_NUMPAD7: key = CURSOR_UP_LEFT; break; |
| 422 | case VK_NUMPAD1: key = CURSOR_DOWN_LEFT; break; |
| 423 | } |
| 424 | |
| 425 | if (key != -1) { |
| 426 | if (!midend_process_key(fe->me, 0, 0, key)) |
| 427 | PostQuitMessage(0); |
| 428 | } else { |
| 429 | MSG m; |
| 430 | m.hwnd = hwnd; |
| 431 | m.message = WM_KEYDOWN; |
| 432 | m.wParam = wParam; |
| 433 | m.lParam = lParam & 0xdfff; |
| 434 | TranslateMessage(&m); |
| 435 | } |
| 436 | } |
| 437 | break; |
| 438 | case WM_LBUTTONDOWN: |
| 439 | case WM_RBUTTONDOWN: |
| 440 | case WM_MBUTTONDOWN: |
| 441 | { |
| 442 | int button; |
| 443 | |
| 444 | /* |
| 445 | * Shift-clicks count as middle-clicks, since otherwise |
| 446 | * two-button Windows users won't have any kind of |
| 447 | * middle click to use. |
| 448 | */ |
| 449 | if (message == WM_MBUTTONDOWN || (wParam & MK_SHIFT)) |
| 450 | button = MIDDLE_BUTTON; |
| 451 | else if (message == WM_LBUTTONDOWN) |
| 452 | button = LEFT_BUTTON; |
| 453 | else |
| 454 | button = RIGHT_BUTTON; |
| 455 | |
| 456 | if (!midend_process_key(fe->me, LOWORD(lParam), |
| 457 | HIWORD(lParam), button)) |
| 458 | PostQuitMessage(0); |
| 459 | } |
| 460 | break; |
| 461 | case WM_CHAR: |
| 462 | if (!midend_process_key(fe->me, 0, 0, (unsigned char)wParam)) |
| 463 | PostQuitMessage(0); |
| 464 | return 0; |
| 465 | case WM_TIMER: |
| 466 | if (fe->timer) |
| 467 | midend_timer(fe->me, (float)0.02); |
| 468 | return 0; |
| 469 | } |
| 470 | |
| 471 | return DefWindowProc(hwnd, message, wParam, lParam); |
| 472 | } |
| 473 | |
| 474 | int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) |
| 475 | { |
| 476 | MSG msg; |
| 477 | |
| 478 | srand(time(NULL)); |
| 479 | |
| 480 | if (!prev) { |
| 481 | WNDCLASS wndclass; |
| 482 | |
| 483 | wndclass.style = 0; |
| 484 | wndclass.lpfnWndProc = WndProc; |
| 485 | wndclass.cbClsExtra = 0; |
| 486 | wndclass.cbWndExtra = 0; |
| 487 | wndclass.hInstance = inst; |
| 488 | wndclass.hIcon = LoadIcon(inst, IDI_APPLICATION); |
| 489 | wndclass.hCursor = LoadCursor(NULL, IDC_ARROW); |
| 490 | wndclass.hbrBackground = NULL; |
| 491 | wndclass.lpszMenuName = NULL; |
| 492 | wndclass.lpszClassName = "puzzle"; |
| 493 | |
| 494 | RegisterClass(&wndclass); |
| 495 | } |
| 496 | |
| 497 | new_window(inst); |
| 498 | |
| 499 | while (GetMessage(&msg, NULL, 0, 0)) { |
| 500 | DispatchMessage(&msg); |
| 501 | } |
| 502 | |
| 503 | return msg.wParam; |
| 504 | } |