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1 | /* |
2 | * windows.c: Windows front end for my puzzle collection. |
3 | */ |
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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 | |
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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 | |
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21 | struct frontend { |
22 | midend_data *me; |
23 | HWND hwnd; |
24 | HBITMAP bitmap, prevbm; |
25 | HDC hdc_bm; |
26 | COLORREF *colours; |
27 | HBRUSH *brushes; |
28 | HPEN *pens; |
29 | UINT timer; |
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30 | int npresets; |
31 | game_params **presets; |
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32 | }; |
33 | |
34 | void fatal(char *fmt, ...) |
35 | { |
36 | char buf[2048]; |
37 | va_list ap; |
38 | |
39 | va_start(ap, fmt); |
40 | vsprintf(buf, fmt, ap); |
41 | va_end(ap); |
42 | |
43 | MessageBox(NULL, buf, "Fatal error", MB_ICONEXCLAMATION | MB_OK); |
44 | |
45 | exit(1); |
46 | } |
47 | |
48 | void frontend_default_colour(frontend *fe, float *output) |
49 | { |
50 | DWORD c = GetSysColor(COLOR_MENU); /* ick */ |
51 | |
52 | output[0] = (float)(GetRValue(c) / 255.0); |
53 | output[1] = (float)(GetGValue(c) / 255.0); |
54 | output[2] = (float)(GetBValue(c) / 255.0); |
55 | } |
56 | |
57 | void draw_rect(frontend *fe, int x, int y, int w, int h, int colour) |
58 | { |
fbdd7610 |
59 | if (w == 1 && h == 1) { |
60 | /* |
61 | * Rectangle() appears to get uppity if asked to draw a 1x1 |
62 | * rectangle, presumably on the grounds that that's beneath |
63 | * its dignity and you ought to be using SetPixel instead. |
64 | * So I will. |
65 | */ |
66 | SetPixel(fe->hdc_bm, x, y, fe->colours[colour]); |
67 | } else { |
68 | HBRUSH oldbrush = SelectObject(fe->hdc_bm, fe->brushes[colour]); |
69 | HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]); |
70 | Rectangle(fe->hdc_bm, x, y, x+w, y+h); |
71 | SelectObject(fe->hdc_bm, oldbrush); |
72 | SelectObject(fe->hdc_bm, oldpen); |
73 | } |
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74 | } |
75 | |
76 | void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour) |
77 | { |
78 | HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]); |
79 | MoveToEx(fe->hdc_bm, x1, y1, NULL); |
80 | LineTo(fe->hdc_bm, x2, y2); |
81 | SetPixel(fe->hdc_bm, x2, y2, fe->colours[colour]); |
82 | SelectObject(fe->hdc_bm, oldpen); |
83 | } |
84 | |
85 | void draw_polygon(frontend *fe, int *coords, int npoints, |
86 | int fill, int colour) |
87 | { |
88 | POINT *pts = snewn(npoints+1, POINT); |
89 | int i; |
90 | |
91 | for (i = 0; i <= npoints; i++) { |
92 | int j = (i < npoints ? i : 0); |
93 | pts[i].x = coords[j*2]; |
94 | pts[i].y = coords[j*2+1]; |
95 | } |
96 | |
97 | if (fill) { |
98 | HBRUSH oldbrush = SelectObject(fe->hdc_bm, fe->brushes[colour]); |
99 | HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]); |
100 | Polygon(fe->hdc_bm, pts, npoints); |
101 | SelectObject(fe->hdc_bm, oldbrush); |
102 | SelectObject(fe->hdc_bm, oldpen); |
103 | } else { |
104 | HPEN oldpen = SelectObject(fe->hdc_bm, fe->pens[colour]); |
105 | Polyline(fe->hdc_bm, pts, npoints+1); |
106 | SelectObject(fe->hdc_bm, oldpen); |
107 | } |
108 | |
109 | sfree(pts); |
110 | } |
111 | |
112 | void start_draw(frontend *fe) |
113 | { |
114 | HDC hdc_win; |
115 | hdc_win = GetDC(fe->hwnd); |
116 | fe->hdc_bm = CreateCompatibleDC(hdc_win); |
117 | fe->prevbm = SelectObject(fe->hdc_bm, fe->bitmap); |
118 | ReleaseDC(fe->hwnd, hdc_win); |
119 | } |
120 | |
121 | void draw_update(frontend *fe, int x, int y, int w, int h) |
122 | { |
123 | RECT r; |
124 | |
125 | r.left = x; |
126 | r.top = y; |
127 | r.right = x + w; |
128 | r.bottom = y + h; |
129 | |
130 | InvalidateRect(fe->hwnd, &r, FALSE); |
131 | } |
132 | |
133 | void end_draw(frontend *fe) |
134 | { |
135 | SelectObject(fe->hdc_bm, fe->prevbm); |
136 | DeleteDC(fe->hdc_bm); |
137 | } |
138 | |
139 | void deactivate_timer(frontend *fe) |
140 | { |
141 | KillTimer(fe->hwnd, fe->timer); |
142 | fe->timer = 0; |
143 | } |
144 | |
145 | void activate_timer(frontend *fe) |
146 | { |
147 | fe->timer = SetTimer(fe->hwnd, fe->timer, 20, NULL); |
148 | } |
149 | |
150 | static frontend *new_window(HINSTANCE inst) |
151 | { |
152 | frontend *fe; |
153 | int x, y; |
154 | RECT r; |
155 | HDC hdc; |
156 | |
157 | fe = snew(frontend); |
158 | fe->me = midend_new(fe); |
159 | midend_new_game(fe->me, NULL); |
160 | midend_size(fe->me, &x, &y); |
161 | |
162 | fe->timer = 0; |
163 | |
164 | { |
165 | int i, ncolours; |
166 | float *colours; |
167 | |
168 | colours = midend_colours(fe->me, &ncolours); |
169 | |
170 | fe->colours = snewn(ncolours, COLORREF); |
171 | fe->brushes = snewn(ncolours, HBRUSH); |
172 | fe->pens = snewn(ncolours, HPEN); |
173 | |
174 | for (i = 0; i < ncolours; i++) { |
175 | fe->colours[i] = RGB(255 * colours[i*3+0], |
176 | 255 * colours[i*3+1], |
177 | 255 * colours[i*3+2]); |
178 | fe->brushes[i] = CreateSolidBrush(fe->colours[i]); |
179 | if (!fe->brushes[i]) |
180 | MessageBox(fe->hwnd, "ooh", "eck", MB_OK); |
181 | fe->pens[i] = CreatePen(PS_SOLID, 1, fe->colours[i]); |
182 | } |
183 | } |
184 | |
185 | r.left = r.top = 0; |
186 | r.right = x; |
187 | r.bottom = y; |
188 | AdjustWindowRectEx(&r, WS_OVERLAPPEDWINDOW &~ |
189 | (WS_THICKFRAME | WS_MAXIMIZEBOX | WS_OVERLAPPED), |
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190 | TRUE, 0); |
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191 | |
192 | fe->hwnd = CreateWindowEx(0, "puzzle", "puzzle", |
193 | WS_OVERLAPPEDWINDOW &~ |
194 | (WS_THICKFRAME | WS_MAXIMIZEBOX), |
195 | CW_USEDEFAULT, CW_USEDEFAULT, |
196 | r.right - r.left, r.bottom - r.top, |
197 | NULL, NULL, inst, NULL); |
198 | |
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199 | { |
200 | HMENU bar = CreateMenu(); |
201 | HMENU menu = CreateMenu(); |
202 | |
203 | AppendMenu(bar, MF_ENABLED|MF_POPUP, (UINT)menu, "Game"); |
204 | AppendMenu(menu, MF_ENABLED, IDM_NEW, "New"); |
205 | AppendMenu(menu, MF_ENABLED, IDM_RESTART, "Restart"); |
206 | |
207 | if ((fe->npresets = midend_num_presets(fe->me)) > 0) { |
208 | HMENU sub = CreateMenu(); |
209 | int i; |
210 | |
211 | AppendMenu(menu, MF_ENABLED|MF_POPUP, (UINT)sub, "Type"); |
212 | |
213 | fe->presets = snewn(fe->npresets, game_params *); |
214 | |
215 | for (i = 0; i < fe->npresets; i++) { |
216 | char *name; |
217 | |
218 | midend_fetch_preset(fe->me, i, &name, &fe->presets[i]); |
219 | |
220 | /* |
221 | * FIXME: we ought to go through and do something |
222 | * with ampersands here. |
223 | */ |
224 | |
225 | AppendMenu(sub, MF_ENABLED, IDM_PRESETS + 0x10 * i, name); |
226 | } |
227 | } |
228 | |
229 | AppendMenu(menu, MF_SEPARATOR, 0, 0); |
230 | AppendMenu(menu, MF_ENABLED, IDM_UNDO, "Undo"); |
231 | AppendMenu(menu, MF_ENABLED, IDM_REDO, "Redo"); |
232 | AppendMenu(menu, MF_SEPARATOR, 0, 0); |
233 | AppendMenu(menu, MF_ENABLED, IDM_QUIT, "Exit"); |
234 | SetMenu(fe->hwnd, bar); |
235 | } |
236 | |
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237 | hdc = GetDC(fe->hwnd); |
238 | fe->bitmap = CreateCompatibleBitmap(hdc, x, y); |
239 | ReleaseDC(fe->hwnd, hdc); |
240 | |
241 | SetWindowLong(fe->hwnd, GWL_USERDATA, (LONG)fe); |
242 | |
243 | ShowWindow(fe->hwnd, SW_NORMAL); |
244 | SetForegroundWindow(fe->hwnd); |
245 | |
246 | midend_redraw(fe->me); |
247 | |
248 | return fe; |
249 | } |
250 | |
251 | static LRESULT CALLBACK WndProc(HWND hwnd, UINT message, |
252 | WPARAM wParam, LPARAM lParam) |
253 | { |
254 | frontend *fe = (frontend *)GetWindowLong(hwnd, GWL_USERDATA); |
255 | |
256 | switch (message) { |
257 | case WM_CLOSE: |
258 | DestroyWindow(hwnd); |
259 | return 0; |
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260 | case WM_COMMAND: |
261 | switch (wParam & ~0xF) { /* low 4 bits reserved to Windows */ |
262 | case IDM_NEW: |
263 | if (!midend_process_key(fe->me, 0, 0, 'n')) |
264 | PostQuitMessage(0); |
265 | break; |
266 | case IDM_RESTART: |
267 | if (!midend_process_key(fe->me, 0, 0, 'r')) |
268 | PostQuitMessage(0); |
269 | break; |
270 | case IDM_UNDO: |
271 | if (!midend_process_key(fe->me, 0, 0, 'u')) |
272 | PostQuitMessage(0); |
273 | break; |
274 | case IDM_REDO: |
275 | if (!midend_process_key(fe->me, 0, 0, '\x12')) |
276 | PostQuitMessage(0); |
277 | break; |
278 | case IDM_QUIT: |
279 | if (!midend_process_key(fe->me, 0, 0, 'q')) |
280 | PostQuitMessage(0); |
281 | break; |
282 | default: |
283 | { |
284 | int p = ((wParam &~ 0xF) - IDM_PRESETS) / 0x10; |
285 | |
286 | if (p >= 0 && p < fe->npresets) { |
287 | RECT r; |
288 | HDC hdc; |
289 | int x, y; |
290 | |
291 | midend_set_params(fe->me, fe->presets[p]); |
292 | midend_new_game(fe->me, NULL); |
293 | midend_size(fe->me, &x, &y); |
294 | |
295 | r.left = r.top = 0; |
296 | r.right = x; |
297 | r.bottom = y; |
298 | AdjustWindowRectEx(&r, WS_OVERLAPPEDWINDOW &~ |
299 | (WS_THICKFRAME | WS_MAXIMIZEBOX | |
300 | WS_OVERLAPPED), |
301 | TRUE, 0); |
302 | |
303 | SetWindowPos(fe->hwnd, NULL, 0, 0, |
304 | r.right - r.left, r.bottom - r.top, |
305 | SWP_NOMOVE | SWP_NOZORDER); |
306 | |
307 | DeleteObject(fe->bitmap); |
308 | |
309 | hdc = GetDC(fe->hwnd); |
310 | fe->bitmap = CreateCompatibleBitmap(hdc, x, y); |
311 | ReleaseDC(fe->hwnd, hdc); |
312 | |
313 | midend_redraw(fe->me); |
314 | } |
315 | } |
316 | break; |
317 | } |
318 | break; |
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319 | case WM_DESTROY: |
320 | PostQuitMessage(0); |
321 | return 0; |
322 | case WM_PAINT: |
323 | { |
324 | PAINTSTRUCT p; |
325 | HDC hdc, hdc2; |
326 | HBITMAP prevbm; |
327 | |
328 | hdc = BeginPaint(hwnd, &p); |
329 | hdc2 = CreateCompatibleDC(hdc); |
330 | prevbm = SelectObject(hdc2, fe->bitmap); |
331 | BitBlt(hdc, |
332 | p.rcPaint.left, p.rcPaint.top, |
333 | p.rcPaint.right - p.rcPaint.left, |
334 | p.rcPaint.bottom - p.rcPaint.top, |
335 | hdc2, |
336 | p.rcPaint.left, p.rcPaint.top, |
337 | SRCCOPY); |
338 | SelectObject(hdc2, prevbm); |
339 | DeleteDC(hdc2); |
340 | EndPaint(hwnd, &p); |
341 | } |
342 | return 0; |
343 | case WM_KEYDOWN: |
344 | { |
345 | int key = -1; |
346 | |
347 | switch (wParam) { |
348 | case VK_LEFT: key = CURSOR_LEFT; break; |
349 | case VK_RIGHT: key = CURSOR_RIGHT; break; |
350 | case VK_UP: key = CURSOR_UP; break; |
351 | case VK_DOWN: key = CURSOR_DOWN; break; |
352 | } |
353 | |
354 | if (key != -1) { |
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355 | if (!midend_process_key(fe->me, 0, 0, key)) |
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356 | PostQuitMessage(0); |
357 | } |
358 | } |
359 | break; |
360 | case WM_LBUTTONDOWN: |
361 | case WM_RBUTTONDOWN: |
362 | case WM_MBUTTONDOWN: |
363 | if (!midend_process_key(fe->me, LOWORD(lParam), HIWORD(lParam), |
364 | (message == WM_LBUTTONDOWN ? LEFT_BUTTON : |
365 | message == WM_RBUTTONDOWN ? RIGHT_BUTTON : |
366 | MIDDLE_BUTTON))) |
367 | PostQuitMessage(0); |
368 | |
369 | break; |
370 | case WM_CHAR: |
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371 | if (!midend_process_key(fe->me, 0, 0, (unsigned char)wParam)) |
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372 | PostQuitMessage(0); |
373 | return 0; |
374 | case WM_TIMER: |
375 | if (fe->timer) |
376 | midend_timer(fe->me, (float)0.02); |
377 | return 0; |
378 | } |
379 | |
380 | return DefWindowProc(hwnd, message, wParam, lParam); |
381 | } |
382 | |
383 | int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) |
384 | { |
385 | MSG msg; |
386 | |
387 | srand(time(NULL)); |
388 | |
389 | if (!prev) { |
390 | WNDCLASS wndclass; |
391 | |
392 | wndclass.style = 0; |
393 | wndclass.lpfnWndProc = WndProc; |
394 | wndclass.cbClsExtra = 0; |
395 | wndclass.cbWndExtra = 0; |
396 | wndclass.hInstance = inst; |
397 | wndclass.hIcon = LoadIcon(inst, IDI_APPLICATION); |
398 | wndclass.hCursor = LoadCursor(NULL, IDC_ARROW); |
399 | wndclass.hbrBackground = NULL; |
400 | wndclass.lpszMenuName = NULL; |
401 | wndclass.lpszClassName = "puzzle"; |
402 | |
403 | RegisterClass(&wndclass); |
404 | } |
405 | |
406 | new_window(inst); |
407 | |
408 | while (GetMessage(&msg, NULL, 0, 0)) { |
409 | TranslateMessage(&msg); |
410 | DispatchMessage(&msg); |
411 | } |
412 | |
413 | return msg.wParam; |
414 | } |