1 |
/* |
2 |
* sdlgui.cpp |
3 |
* |
4 |
* This file is taken from the ARAnyM project which builds a new and powerful |
5 |
* TOS/FreeMiNT compatible virtual machine running on almost any hardware. |
6 |
* |
7 |
* Copyright (c) 2001 Thomas Huth - taken from his hatari project |
8 |
* Copyright (c) 2002-2005 Petr Stehlik of ARAnyM dev team (see AUTHORS) |
9 |
* |
10 |
* It is free software; you can redistribute it and/or modify |
11 |
* it under the terms of the GNU General Public License as published by |
12 |
* the Free Software Foundation; either version 2 of the License, or |
13 |
* (at your option) any later version. |
14 |
* |
15 |
* You should have received a copy of the GNU General Public License |
16 |
* along with Frodo; if not, write to the Free Software |
17 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
18 |
*/ |
19 |
|
20 |
#include "sysdeps.h" |
21 |
#include "sdlgui.h" |
22 |
#include "file.h" |
23 |
#include "debug.h" |
24 |
|
25 |
#include <cstdlib> |
26 |
|
27 |
#include "font8.h" |
28 |
|
29 |
static SDL_Surface *mainsurface = NULL; |
30 |
#define sdlscrn mainsurface |
31 |
|
32 |
static SDL_Surface *fontgfx=NULL; |
33 |
static int fontwidth, fontheight; /* Height and width of the actual font */ |
34 |
|
35 |
// Stores current dialog coordinates |
36 |
static SDL_Rect DialogRect = {0, 0, 0, 0}; |
37 |
|
38 |
// Used by SDLGui_Get[First|Next]BackgroundRect() |
39 |
static SDL_Rect BackgroundRect = {0, 0, 0, 0}; |
40 |
static int BackgroundRectCounter; |
41 |
enum |
42 |
{ |
43 |
SG_BCKGND_RECT_BEGIN, |
44 |
SG_BCKGND_RECT_TOP, |
45 |
SG_BCKGND_RECT_LEFT, |
46 |
SG_BCKGND_RECT_RIGHT, |
47 |
SG_BCKGND_RECT_BOTTOM, |
48 |
SG_BCKGND_RECT_END |
49 |
}; |
50 |
|
51 |
SDL_Color blackc[] = {{0, 0, 0, 0}}; |
52 |
SDL_Color darkgreyc[] = {{128, 128, 128, 0}}; |
53 |
SDL_Color greyc[] = {{192, 192, 192, 0}}; |
54 |
SDL_Color whitec[] = {{255, 255, 255, 0}}; |
55 |
|
56 |
enum |
57 |
{ |
58 |
SG_FIRST_EDITFIELD, |
59 |
SG_PREVIOUS_EDITFIELD, |
60 |
SG_NEXT_EDITFIELD, |
61 |
SG_LAST_EDITFIELD |
62 |
}; |
63 |
|
64 |
/*-----------------------------------------------------------------------*/ |
65 |
/* |
66 |
Load an 1 plane XBM into a 8 planes SDL_Surface. |
67 |
*/ |
68 |
static SDL_Surface *SDLGui_LoadXBM(int w, int h, Uint8 *srcbits) |
69 |
{ |
70 |
SDL_Surface *bitmap; |
71 |
Uint8 *dstbits; |
72 |
int x, y, srcpitch; |
73 |
|
74 |
/* Allocate the bitmap */ |
75 |
bitmap = SDL_CreateRGBSurface(SDL_SWSURFACE, w, h, 8, 0, 0, 0, 0); |
76 |
if ( bitmap == NULL ) |
77 |
{ |
78 |
// TODO panicbug("Couldn't allocate bitmap: %s", SDL_GetError()); |
79 |
return(NULL); |
80 |
} |
81 |
|
82 |
srcpitch = ((w + 7) / 8); |
83 |
dstbits = (Uint8 *)bitmap->pixels; |
84 |
int mask = 1; |
85 |
|
86 |
/* Copy the pixels */ |
87 |
for (y = 0 ; y < h ; y++) |
88 |
{ |
89 |
for (x = 0 ; x < w ; x++) |
90 |
{ |
91 |
dstbits[x] = (srcbits[x / 8] & mask) ? 1 : 0; |
92 |
mask <<= 1; |
93 |
mask |= (mask >> 8); |
94 |
mask &= 0xFF; |
95 |
} |
96 |
dstbits += bitmap->pitch; |
97 |
srcbits += srcpitch; |
98 |
} |
99 |
|
100 |
return(bitmap); |
101 |
} |
102 |
|
103 |
/*-----------------------------------------------------------------------*/ |
104 |
/* |
105 |
Initialize the GUI. |
106 |
*/ |
107 |
bool SDLGui_Init(SDL_Surface *GUISurface) |
108 |
{ |
109 |
mainsurface = GUISurface; |
110 |
/* Load the font graphics: */ |
111 |
fontgfx = SDLGui_LoadXBM(font8_width, font8_height, font8_bits); |
112 |
if (fontgfx == NULL) |
113 |
{ |
114 |
// TODO panicbug("Could not create font data"); |
115 |
// TODO panicbug("ARAnyM GUI will not be available"); |
116 |
return false; |
117 |
} |
118 |
|
119 |
/* Set font color 0 as transparent */ |
120 |
SDL_SetColorKey(fontgfx, SDL_SRCCOLORKEY, 0); |
121 |
|
122 |
/* Get the font width and height: */ |
123 |
fontwidth = fontgfx->w/16; |
124 |
fontheight = fontgfx->h/16; |
125 |
|
126 |
return true; |
127 |
} |
128 |
|
129 |
|
130 |
/*-----------------------------------------------------------------------*/ |
131 |
/* |
132 |
Uninitialize the GUI. |
133 |
*/ |
134 |
int SDLGui_UnInit() |
135 |
{ |
136 |
if (fontgfx) |
137 |
{ |
138 |
SDL_FreeSurface(fontgfx); |
139 |
fontgfx = NULL; |
140 |
} |
141 |
|
142 |
return 0; |
143 |
} |
144 |
|
145 |
|
146 |
/*-----------------------------------------------------------------------*/ |
147 |
/* |
148 |
Compute real coordinates for a given object. |
149 |
Note: centers dialog on screen. |
150 |
*/ |
151 |
static void SDLGui_ObjCoord(SGOBJ *dlg, int objnum, SDL_Rect *rect) |
152 |
{ |
153 |
rect->x = dlg[objnum].x * fontwidth; |
154 |
rect->y = dlg[objnum].y * fontheight; |
155 |
rect->w = dlg[objnum].w * fontwidth; |
156 |
rect->h = dlg[objnum].h * fontheight; |
157 |
|
158 |
rect->x += (sdlscrn->w - (dlg[0].w * fontwidth)) / 2; |
159 |
rect->y += (sdlscrn->h - (dlg[0].h * fontheight)) / 2; |
160 |
} |
161 |
|
162 |
|
163 |
/*-----------------------------------------------------------------------*/ |
164 |
/* |
165 |
Compute real coordinates for a given object. |
166 |
This one takes borders into account and give coordinates as seen by user |
167 |
*/ |
168 |
void SDLGui_ObjFullCoord(SGOBJ *dlg, int objnum, SDL_Rect *coord) |
169 |
{ |
170 |
SDLGui_ObjCoord(dlg, objnum, coord); |
171 |
|
172 |
switch (dlg[objnum].type) |
173 |
{ |
174 |
case SGBOX: |
175 |
case SGBUTTON: |
176 |
{ |
177 |
// Take border into account |
178 |
int border_size; |
179 |
|
180 |
if (dlg[objnum].flags & SG_SELECTABLE) |
181 |
{ |
182 |
if (dlg[objnum].flags & SG_DEFAULT) |
183 |
border_size = 4; |
184 |
else |
185 |
border_size = 3; |
186 |
} |
187 |
else |
188 |
{ |
189 |
if (dlg[objnum].flags & SG_BACKGROUND) |
190 |
border_size = 6; |
191 |
else |
192 |
border_size = 5; |
193 |
} |
194 |
|
195 |
coord->x -= border_size; |
196 |
coord->y -= border_size; |
197 |
coord->w += (border_size * 2); |
198 |
coord->h += (border_size * 2); |
199 |
} |
200 |
break; |
201 |
case SGEDITFIELD: |
202 |
// Allow one more pixel to the right for cursor |
203 |
coord->w += 1; |
204 |
// There is a line below |
205 |
coord->h += 1; |
206 |
break; |
207 |
} |
208 |
} |
209 |
|
210 |
|
211 |
/*-----------------------------------------------------------------------*/ |
212 |
/* |
213 |
Refresh display at given coordinates. |
214 |
Unlike SDL_UpdateRect() this function can eat coords that goes beyond screen |
215 |
boundaries. |
216 |
"rect" will be modified to represent the area actually refreshed. |
217 |
*/ |
218 |
void SDLGui_UpdateRect(SDL_Rect *rect) |
219 |
{ |
220 |
if (rect->x < 0) |
221 |
{ |
222 |
rect->w += rect->x; |
223 |
rect->x = 0; |
224 |
} |
225 |
if ((rect->x + rect->w) > sdlscrn->w) |
226 |
rect->w = (sdlscrn->w - rect->x); |
227 |
|
228 |
if (rect->y < 0) |
229 |
{ |
230 |
rect->h += rect->y; |
231 |
rect->y = 0; |
232 |
} |
233 |
if ((rect->y + rect->h) > sdlscrn->h) |
234 |
rect->h = (sdlscrn->h - rect->y); |
235 |
|
236 |
if ((rect->w > 0) && (rect->h > 0)) |
237 |
SDL_UpdateRects(sdlscrn, 1, rect); |
238 |
else |
239 |
{ |
240 |
rect->x = 0; |
241 |
rect->y = 0; |
242 |
rect->w = 0; |
243 |
rect->h = 0; |
244 |
} |
245 |
} |
246 |
|
247 |
|
248 |
/*-----------------------------------------------------------------------*/ |
249 |
/* |
250 |
Maps an SDL_Color to the screen format. |
251 |
*/ |
252 |
Uint32 SDLGui_MapColor(SDL_Color *color) |
253 |
{ |
254 |
return SDL_MapRGB(sdlscrn->format, color->r, color->g, color->b); |
255 |
} |
256 |
|
257 |
|
258 |
/*-----------------------------------------------------------------------*/ |
259 |
/* |
260 |
Refresh display to reflect an object change. |
261 |
*/ |
262 |
void SDLGui_RefreshObj(SGOBJ *dlg, int objnum) |
263 |
{ |
264 |
SDL_Rect coord; |
265 |
|
266 |
SDLGui_ObjFullCoord(dlg, objnum, &coord); |
267 |
|
268 |
SCRLOCK; |
269 |
SDLGui_UpdateRect(&coord); |
270 |
SCRUNLOCK; |
271 |
} |
272 |
|
273 |
|
274 |
/*-----------------------------------------------------------------------*/ |
275 |
/* |
276 |
Draw a text string. |
277 |
*/ |
278 |
void SDLGui_Text(int x, int y, const char *txt, SDL_Color *col) |
279 |
{ |
280 |
int i; |
281 |
char c; |
282 |
SDL_Rect sr, dr; |
283 |
|
284 |
SDL_SetColors(fontgfx, col, 1, 1); |
285 |
|
286 |
SCRLOCK; |
287 |
for (i = 0 ; txt[i] != 0 ; i++) |
288 |
{ |
289 |
c = txt[i]; |
290 |
sr.x = fontwidth * (c % 16); |
291 |
sr.y = fontheight * (c / 16); |
292 |
sr.w = fontwidth; |
293 |
sr.h = fontheight; |
294 |
|
295 |
dr.x = x + (fontwidth * i); |
296 |
dr.y = y; |
297 |
dr.w = fontwidth; |
298 |
dr.h = fontheight; |
299 |
|
300 |
SDL_BlitSurface(fontgfx, &sr, sdlscrn, &dr); |
301 |
} |
302 |
SCRUNLOCK; |
303 |
} |
304 |
|
305 |
|
306 |
/*-----------------------------------------------------------------------*/ |
307 |
/* |
308 |
Draw a dialog text object. |
309 |
*/ |
310 |
void SDLGui_DrawText(SGOBJ *tdlg, int objnum) |
311 |
{ |
312 |
SDL_Rect coord; |
313 |
SDL_Color *textc, *backgroundc; |
314 |
|
315 |
if (tdlg[objnum].state & SG_SELECTED) |
316 |
{ |
317 |
textc = whitec; |
318 |
backgroundc = darkgreyc; |
319 |
} |
320 |
else if (tdlg[objnum].state & SG_DISABLED) |
321 |
{ |
322 |
textc = darkgreyc; |
323 |
backgroundc = greyc; |
324 |
} |
325 |
else |
326 |
{ |
327 |
textc = blackc; |
328 |
backgroundc = greyc; |
329 |
} |
330 |
|
331 |
SDLGui_ObjCoord(tdlg, objnum, &coord); |
332 |
SDL_FillRect(sdlscrn, &coord, SDLGui_MapColor(backgroundc)); |
333 |
SDLGui_Text(coord.x, coord.y, tdlg[objnum].txt, textc); |
334 |
} |
335 |
|
336 |
|
337 |
/*-----------------------------------------------------------------------*/ |
338 |
/* |
339 |
Draw an edit field object. |
340 |
*/ |
341 |
void SDLGui_DrawEditField(SGOBJ *edlg, int objnum) |
342 |
{ |
343 |
SDL_Rect coord; |
344 |
SDL_Color *textc; |
345 |
|
346 |
if (edlg[objnum].state & SG_DISABLED) |
347 |
textc = darkgreyc; |
348 |
else |
349 |
textc = blackc; |
350 |
|
351 |
SDLGui_ObjCoord(edlg, objnum, &coord); |
352 |
coord.w += 1; |
353 |
SDL_FillRect(sdlscrn, &coord, SDLGui_MapColor(greyc)); |
354 |
SDLGui_Text(coord.x, coord.y, edlg[objnum].txt, textc); |
355 |
|
356 |
// Draw a line below. |
357 |
coord.y = coord.y + coord.h; |
358 |
coord.h = 1; |
359 |
SDL_FillRect(sdlscrn, &coord, SDLGui_MapColor(darkgreyc)); |
360 |
} |
361 |
|
362 |
|
363 |
/*-----------------------------------------------------------------------*/ |
364 |
/* |
365 |
Draw or erase cursor. |
366 |
*/ |
367 |
void SDLGui_DrawCursor(SGOBJ *dlg, cursor_state *cursor) |
368 |
{ |
369 |
if (cursor->object != -1) |
370 |
{ |
371 |
SDL_Rect coord; |
372 |
SDL_Color *cursorc; |
373 |
|
374 |
SDLGui_DrawEditField(dlg, cursor->object); |
375 |
|
376 |
if (cursor->blink_state) |
377 |
cursorc = blackc; |
378 |
else |
379 |
cursorc = greyc; |
380 |
|
381 |
SDLGui_ObjCoord(dlg, cursor->object, &coord); |
382 |
coord.x += (cursor->position * fontwidth); |
383 |
coord.w = 1; |
384 |
SDL_FillRect(sdlscrn, &coord, SDLGui_MapColor(cursorc)); |
385 |
|
386 |
SDLGui_RefreshObj(dlg, cursor->object); |
387 |
} |
388 |
} |
389 |
|
390 |
|
391 |
/*-----------------------------------------------------------------------*/ |
392 |
/* |
393 |
Draw a 3D effect around a given rectangle. |
394 |
Rectangle is updated to the full size of the new object. |
395 |
*/ |
396 |
void SDLGui_Draw3DAround(SDL_Rect *coord, SDL_Color *upleftc, SDL_Color *downrightc, SDL_Color *cornerc, int width) |
397 |
{ |
398 |
SDL_Rect rect; |
399 |
int i; |
400 |
Uint32 upleftcol = SDLGui_MapColor(upleftc); |
401 |
Uint32 downrightcol = SDLGui_MapColor(downrightc); |
402 |
Uint32 cornercol = SDLGui_MapColor(cornerc); |
403 |
|
404 |
SCRLOCK; |
405 |
|
406 |
for ( i = 1 ; i <= width ; i++) |
407 |
{ |
408 |
rect.x = coord->x - i; |
409 |
rect.y = coord->y - i; |
410 |
rect.w = coord->w + (i * 2) - 1; |
411 |
rect.h = 1; |
412 |
SDL_FillRect(sdlscrn, &rect, upleftcol); |
413 |
|
414 |
rect.x = coord->x - i; |
415 |
rect.y = coord->y - i; |
416 |
rect.w = 1; |
417 |
rect.h = coord->h + (i * 2) - 1; |
418 |
SDL_FillRect(sdlscrn, &rect, upleftcol); |
419 |
|
420 |
rect.x = coord->x - i + 1; |
421 |
rect.y = coord->y + coord->h - 1 + i; |
422 |
rect.w = coord->w + (i * 2) - 1; |
423 |
rect.h = 1; |
424 |
SDL_FillRect(sdlscrn, &rect, downrightcol); |
425 |
|
426 |
rect.x = coord->x + coord->w - 1 + i; |
427 |
rect.y = coord->y - i + 1; |
428 |
rect.w = 1; |
429 |
rect.h = coord->h + (i * 2) - 1; |
430 |
SDL_FillRect(sdlscrn, &rect, downrightcol); |
431 |
|
432 |
rect.x = coord->x + coord->w + i - 1; |
433 |
rect.y = coord->y - i; |
434 |
rect.w = 1; |
435 |
rect.h = 1; |
436 |
SDL_FillRect(sdlscrn, &rect, cornercol); |
437 |
|
438 |
rect.x = coord->x - i; |
439 |
rect.y = coord->y + coord->h + i - 1; |
440 |
rect.w = 1; |
441 |
rect.h = 1; |
442 |
SDL_FillRect(sdlscrn, &rect, cornercol); |
443 |
} |
444 |
|
445 |
SCRUNLOCK; |
446 |
|
447 |
coord->x -= width; |
448 |
coord->y -= width; |
449 |
coord->w += (width * 2); |
450 |
coord->h += (width * 2); |
451 |
} |
452 |
|
453 |
|
454 |
/*-----------------------------------------------------------------------*/ |
455 |
/* |
456 |
Draw a colored box around a given rectangle. |
457 |
Rectangle is updated to the full size of the new object. |
458 |
*/ |
459 |
void SDLGui_DrawBoxAround(SDL_Rect *coord, SDL_Color *color, int width) |
460 |
{ |
461 |
SDL_Rect rect; |
462 |
Uint32 col = SDLGui_MapColor(color); |
463 |
|
464 |
SCRLOCK; |
465 |
|
466 |
rect.x = coord->x - width; |
467 |
rect.y = coord->y - width; |
468 |
rect.w = coord->w + (width * 2); |
469 |
rect.h = width; |
470 |
SDL_FillRect(sdlscrn, &rect, col); |
471 |
|
472 |
rect.x = coord->x - width; |
473 |
rect.y = coord->y - width; |
474 |
rect.w = width; |
475 |
rect.h = coord->h + (width * 2); |
476 |
SDL_FillRect(sdlscrn, &rect, col); |
477 |
|
478 |
rect.x = coord->x + coord->w; |
479 |
rect.y = coord->y - width; |
480 |
rect.w = width; |
481 |
rect.h = coord->h + (width * 2); |
482 |
SDL_FillRect(sdlscrn, &rect, col); |
483 |
|
484 |
rect.x = coord->x - width; |
485 |
rect.y = coord->y + coord->h; |
486 |
rect.w = coord->w + (width * 2); |
487 |
rect.h = width; |
488 |
SDL_FillRect(sdlscrn, &rect, col); |
489 |
|
490 |
SCRUNLOCK; |
491 |
|
492 |
coord->x -= width; |
493 |
coord->y -= width; |
494 |
coord->w += (width * 2); |
495 |
coord->h += (width * 2); |
496 |
} |
497 |
|
498 |
|
499 |
/*-----------------------------------------------------------------------*/ |
500 |
/* |
501 |
Draw a 3D box with given attributes. |
502 |
*/ |
503 |
void SDLGui_Draw3DBox(SDL_Rect *coord, |
504 |
SDL_Color *backgroundc, |
505 |
SDL_Color *inboxc, |
506 |
SDL_Color *upleftc, |
507 |
SDL_Color *downrightc, |
508 |
SDL_Color *outboxc, |
509 |
int widthbackground, |
510 |
int widthinbox, |
511 |
int width3D1, |
512 |
int width3D2, |
513 |
int widthoutbox) |
514 |
{ |
515 |
SDL_Rect rect; |
516 |
|
517 |
SCRLOCK; |
518 |
|
519 |
// Draw background |
520 |
rect.x = coord->x - widthbackground; |
521 |
rect.y = coord->y - widthbackground; |
522 |
rect.w = coord->w + (widthbackground * 2); |
523 |
rect.h = coord->h + (widthbackground * 2); |
524 |
SDL_FillRect(sdlscrn, &rect, SDLGui_MapColor(backgroundc)); |
525 |
|
526 |
SCRUNLOCK; |
527 |
|
528 |
// Update coords |
529 |
coord->x -= widthbackground; |
530 |
coord->y -= widthbackground; |
531 |
coord->w += (widthbackground * 2); |
532 |
coord->h += (widthbackground * 2); |
533 |
|
534 |
if (widthinbox > 0) |
535 |
SDLGui_DrawBoxAround(coord, inboxc, widthinbox); |
536 |
|
537 |
if (width3D1 > 0) |
538 |
SDLGui_Draw3DAround(coord, upleftc, downrightc, backgroundc, width3D1); |
539 |
|
540 |
if (width3D2 > 0) |
541 |
SDLGui_Draw3DAround(coord, downrightc, upleftc, backgroundc, width3D2); |
542 |
|
543 |
if (widthoutbox > 0) |
544 |
SDLGui_DrawBoxAround(coord, outboxc, widthoutbox); |
545 |
} |
546 |
|
547 |
|
548 |
/*-----------------------------------------------------------------------*/ |
549 |
/* |
550 |
Draw a dialog box object. |
551 |
*/ |
552 |
void SDLGui_DrawBox(SGOBJ *bdlg, int objnum) |
553 |
{ |
554 |
SDL_Rect coord; |
555 |
SDL_Color *my_blackc; |
556 |
SDL_Color *upleftc, *downrightc; |
557 |
|
558 |
SDLGui_ObjCoord(bdlg, objnum, &coord); |
559 |
|
560 |
// Modify box drawing according to object state |
561 |
if (bdlg[objnum].state & SG_DISABLED) |
562 |
my_blackc = darkgreyc; |
563 |
else |
564 |
my_blackc = blackc; |
565 |
|
566 |
if (bdlg[objnum].state & SG_SELECTED) |
567 |
{ |
568 |
upleftc = darkgreyc; |
569 |
downrightc = whitec; |
570 |
} |
571 |
else |
572 |
{ |
573 |
upleftc = whitec; |
574 |
downrightc = darkgreyc; |
575 |
} |
576 |
|
577 |
// Draw box according to object flags |
578 |
switch (bdlg[objnum].flags & (SG_SELECTABLE | SG_DEFAULT | SG_BACKGROUND)) |
579 |
{ |
580 |
case (SG_SELECTABLE | SG_DEFAULT | SG_BACKGROUND): |
581 |
case (SG_SELECTABLE | SG_DEFAULT): |
582 |
SDLGui_Draw3DBox(&coord, |
583 |
greyc, NULL, upleftc, downrightc, my_blackc, |
584 |
1, 0, 1, 0, 2); |
585 |
break; |
586 |
case (SG_SELECTABLE | SG_BACKGROUND): |
587 |
case SG_SELECTABLE: |
588 |
SDLGui_Draw3DBox(&coord, |
589 |
greyc, NULL, upleftc, downrightc, my_blackc, |
590 |
1, 0, 1, 0, 1); |
591 |
break; |
592 |
case (SG_DEFAULT | SG_BACKGROUND): |
593 |
case SG_BACKGROUND: |
594 |
SDLGui_Draw3DBox(&coord, |
595 |
greyc, my_blackc, upleftc, downrightc, darkgreyc, |
596 |
0, 2, 3, 0, 1); |
597 |
break; |
598 |
case SG_DEFAULT: |
599 |
case 0: |
600 |
SDLGui_Draw3DBox(&coord, |
601 |
greyc, NULL, upleftc, downrightc, NULL, |
602 |
3, 0, 1, 1, 0); |
603 |
break; |
604 |
} |
605 |
} |
606 |
|
607 |
|
608 |
/*-----------------------------------------------------------------------*/ |
609 |
/* |
610 |
Draw a normal button. |
611 |
*/ |
612 |
void SDLGui_DrawButton(SGOBJ *bdlg, int objnum) |
613 |
{ |
614 |
SDL_Rect coord; |
615 |
int x, y; |
616 |
SDL_Color *textc; |
617 |
|
618 |
SDLGui_ObjCoord(bdlg, objnum, &coord); |
619 |
|
620 |
x = coord.x + ((coord.w - (strlen(bdlg[objnum].txt) * fontwidth)) / 2); |
621 |
y = coord.y + ((coord.h - fontheight) / 2); |
622 |
|
623 |
if (bdlg[objnum].state & SG_SELECTED) |
624 |
{ |
625 |
x += 1; |
626 |
y += 1; |
627 |
} |
628 |
|
629 |
if (bdlg[objnum].state & SG_DISABLED) |
630 |
textc = darkgreyc; |
631 |
else |
632 |
textc = blackc; |
633 |
|
634 |
SDLGui_DrawBox(bdlg, objnum); |
635 |
SDLGui_Text(x, y, bdlg[objnum].txt, textc); |
636 |
} |
637 |
|
638 |
|
639 |
/*-----------------------------------------------------------------------*/ |
640 |
/* |
641 |
Draw a dialog check box object state. |
642 |
*/ |
643 |
void SDLGui_DrawCheckBoxState(SGOBJ *cdlg, int objnum) |
644 |
{ |
645 |
Uint32 grey = SDLGui_MapColor(greyc); |
646 |
SDL_Rect coord; |
647 |
char str[2]; |
648 |
SDL_Color *textc; |
649 |
|
650 |
SDLGui_ObjCoord(cdlg, objnum, &coord); |
651 |
|
652 |
if (cdlg[objnum].flags & SG_RADIO) |
653 |
{ |
654 |
if (cdlg[objnum].state & SG_SELECTED) |
655 |
str[0]=SGCHECKBOX_RADIO_SELECTED; |
656 |
else |
657 |
str[0]=SGCHECKBOX_RADIO_NORMAL; |
658 |
} |
659 |
else |
660 |
{ |
661 |
if (cdlg[objnum].state & SG_SELECTED) |
662 |
str[0]=SGCHECKBOX_SELECTED; |
663 |
else |
664 |
str[0]=SGCHECKBOX_NORMAL; |
665 |
} |
666 |
|
667 |
if (cdlg[objnum].state & SG_DISABLED) |
668 |
textc = darkgreyc; |
669 |
else |
670 |
textc = blackc; |
671 |
|
672 |
str[1]='\0'; |
673 |
|
674 |
coord.w = fontwidth; |
675 |
coord.h = fontheight; |
676 |
|
677 |
if (cdlg[objnum].flags & SG_BUTTON_RIGHT) |
678 |
coord.x += ((strlen(cdlg[objnum].txt) + 1) * fontwidth); |
679 |
|
680 |
SDL_FillRect(sdlscrn, &coord, grey); |
681 |
SDLGui_Text(coord.x, coord.y, str, textc); |
682 |
} |
683 |
|
684 |
|
685 |
/*-----------------------------------------------------------------------*/ |
686 |
/* |
687 |
Draw a dialog check box object. |
688 |
*/ |
689 |
void SDLGui_DrawCheckBox(SGOBJ *cdlg, int objnum) |
690 |
{ |
691 |
SDL_Rect coord; |
692 |
SDL_Color *textc; |
693 |
|
694 |
SDLGui_ObjCoord(cdlg, objnum, &coord); |
695 |
|
696 |
if (!(cdlg[objnum].flags&SG_BUTTON_RIGHT)) |
697 |
coord.x += (fontwidth * 2); |
698 |
|
699 |
if (cdlg[objnum].state & SG_DISABLED) |
700 |
textc = darkgreyc; |
701 |
else |
702 |
textc = blackc; |
703 |
|
704 |
SDLGui_Text(coord.x, coord.y, cdlg[objnum].txt, textc); |
705 |
SDLGui_DrawCheckBoxState(cdlg, objnum); |
706 |
} |
707 |
|
708 |
|
709 |
/*-----------------------------------------------------------------------*/ |
710 |
/* |
711 |
Draw a dialog popup button object. |
712 |
*/ |
713 |
void SDLGui_DrawPopupButton(SGOBJ *pdlg, int objnum) |
714 |
{ |
715 |
SDL_Rect coord; |
716 |
const char *downstr = "\x02"; |
717 |
SDL_Color *textc; |
718 |
|
719 |
if (pdlg[objnum].state & SG_DISABLED) |
720 |
textc = darkgreyc; |
721 |
else |
722 |
textc = blackc; |
723 |
|
724 |
SDLGui_DrawBox(pdlg, objnum); |
725 |
|
726 |
SDLGui_ObjCoord(pdlg, objnum, &coord); |
727 |
|
728 |
SDLGui_Text(coord.x, coord.y, pdlg[objnum].txt, textc); |
729 |
SDLGui_Text(coord.x+coord.w-fontwidth, coord.y, downstr, textc); |
730 |
} |
731 |
|
732 |
|
733 |
/*-----------------------------------------------------------------------*/ |
734 |
/* |
735 |
Draw an object. |
736 |
*/ |
737 |
void SDLGui_DrawObject(SGOBJ *dlg, int objnum) |
738 |
{ |
739 |
switch (dlg[objnum].type) |
740 |
{ |
741 |
case SGBOX: |
742 |
SDLGui_DrawBox(dlg, objnum); |
743 |
break; |
744 |
case SGTEXT: |
745 |
SDLGui_DrawText(dlg, objnum); |
746 |
break; |
747 |
case SGEDITFIELD: |
748 |
SDLGui_DrawEditField(dlg, objnum); |
749 |
break; |
750 |
case SGBUTTON: |
751 |
SDLGui_DrawButton(dlg, objnum); |
752 |
break; |
753 |
case SGCHECKBOX: |
754 |
SDLGui_DrawCheckBox(dlg, objnum); |
755 |
break; |
756 |
case SGPOPUP: |
757 |
SDLGui_DrawPopupButton(dlg, objnum); |
758 |
break; |
759 |
} |
760 |
} |
761 |
|
762 |
|
763 |
/*-----------------------------------------------------------------------*/ |
764 |
/* |
765 |
Draw a whole dialog. |
766 |
*/ |
767 |
void SDLGui_DrawDialog(SGOBJ *dlg) |
768 |
{ |
769 |
int i; |
770 |
|
771 |
// Store dialog coordinates |
772 |
SDLGui_ObjFullCoord(dlg, 0, &DialogRect); |
773 |
|
774 |
for (i = 0 ; dlg[i].type != -1 ; i++) |
775 |
{ |
776 |
if (dlg[i].state & SG_HIDDEN) continue; |
777 |
SDLGui_DrawObject(dlg, i); |
778 |
} |
779 |
SDLGui_RefreshObj(dlg, 0); |
780 |
} |
781 |
|
782 |
|
783 |
/*-----------------------------------------------------------------------*/ |
784 |
/* |
785 |
Search default object in a dialog. |
786 |
*/ |
787 |
int SDLGui_FindDefaultObj(SGOBJ *dlg) |
788 |
{ |
789 |
int i = 0; |
790 |
|
791 |
while (dlg[i].type != -1) |
792 |
{ |
793 |
if (dlg[i].flags & SG_DEFAULT) |
794 |
return i; |
795 |
i++; |
796 |
} |
797 |
|
798 |
return -1; |
799 |
} |
800 |
|
801 |
|
802 |
/*-----------------------------------------------------------------------*/ |
803 |
/* |
804 |
Search an object at given coordinates. |
805 |
*/ |
806 |
int SDLGui_FindObj(SGOBJ *dlg, int fx, int fy) |
807 |
{ |
808 |
SDL_Rect coord; |
809 |
int end, i; |
810 |
int ob = -1; |
811 |
|
812 |
// Search end object in dialog |
813 |
i = 0; |
814 |
while (dlg[i++].type != -1); |
815 |
end = i; |
816 |
|
817 |
// Now check each object |
818 |
for (i = end-1 ; i >= 0 ; i--) |
819 |
{ |
820 |
SDLGui_ObjFullCoord(dlg, i, &coord); |
821 |
|
822 |
if(fx >= coord.x && |
823 |
fy >= coord.y && |
824 |
fx < (coord.x + coord.w) && |
825 |
fy < (coord.y + coord.h)) |
826 |
{ |
827 |
if (dlg[i].state & (SG_HIDDEN | SG_DISABLED)) continue; |
828 |
ob = i; |
829 |
break; |
830 |
} |
831 |
} |
832 |
|
833 |
return ob; |
834 |
} |
835 |
|
836 |
|
837 |
/*-----------------------------------------------------------------------*/ |
838 |
/* |
839 |
A radio object has been selected. Let's deselect any other in his group. |
840 |
*/ |
841 |
void SDLGui_SelectRadioObject(SGOBJ *dlg, int clicked_obj) |
842 |
{ |
843 |
int obj; |
844 |
|
845 |
// Find first radio object in this group |
846 |
obj = clicked_obj; |
847 |
while (dlg[--obj].flags & SG_RADIO); |
848 |
|
849 |
// Update state |
850 |
while (dlg[++obj].flags & SG_RADIO) |
851 |
{ |
852 |
// This code scan every object in the group. This allows to solve cases |
853 |
// where multiple objects where selected in the group by clicking one. |
854 |
if ((obj != clicked_obj) && (dlg[obj].state & SG_SELECTED)) |
855 |
{ |
856 |
// Deselect this radio button |
857 |
dlg[obj].state &= ~SG_SELECTED; |
858 |
SDLGui_DrawObject(dlg, obj); |
859 |
SDLGui_RefreshObj(dlg, obj); |
860 |
} |
861 |
} |
862 |
} |
863 |
|
864 |
|
865 |
/*-----------------------------------------------------------------------*/ |
866 |
/* |
867 |
Update clicked object state depending on given mouse coordinates. |
868 |
Returns true if the mouse is over the object, false otherwise. |
869 |
*/ |
870 |
bool SDLGui_UpdateObjState(SGOBJ *dlg, int clicked_obj, int original_state, |
871 |
int x, int y) |
872 |
{ |
873 |
int obj; |
874 |
|
875 |
obj = SDLGui_FindObj(dlg, x, y); |
876 |
|
877 |
// Special case : user clicked on an already selected radio object |
878 |
// do not modify its state. |
879 |
// We handle it here because it allows to exit if the object is SG_EXIT or |
880 |
// SG_TOUCHEXIT without any additional test. |
881 |
if ((dlg[clicked_obj].flags & SG_RADIO) && (original_state & SG_SELECTED)) |
882 |
return (obj == clicked_obj); |
883 |
|
884 |
if (((obj != clicked_obj) && |
885 |
(dlg[clicked_obj].state != original_state)) || |
886 |
((obj == clicked_obj) && |
887 |
(dlg[clicked_obj].state == original_state))) |
888 |
{ |
889 |
if (dlg[clicked_obj].flags & SG_SELECTABLE) |
890 |
{ |
891 |
dlg[clicked_obj].state ^= SG_SELECTED; |
892 |
SDLGui_DrawObject(dlg, clicked_obj); |
893 |
SDLGui_RefreshObj(dlg, clicked_obj); |
894 |
} |
895 |
} |
896 |
|
897 |
return (obj == clicked_obj); |
898 |
} |
899 |
|
900 |
|
901 |
/*-----------------------------------------------------------------------*/ |
902 |
/* |
903 |
Search edit field in a dialog. |
904 |
*/ |
905 |
int SDLGui_FindEditField(SGOBJ *dlg, int objnum, int mode) |
906 |
{ |
907 |
int i, j; |
908 |
|
909 |
switch (mode) |
910 |
{ |
911 |
case SG_FIRST_EDITFIELD: |
912 |
i = 0; |
913 |
while (dlg[i].type != -1) |
914 |
{ |
915 |
if ((dlg[i].type == SGEDITFIELD) && |
916 |
((dlg[i].state & (SG_HIDDEN | SG_DISABLED)) == 0)) |
917 |
return i; |
918 |
i++; |
919 |
} |
920 |
break; |
921 |
|
922 |
case SG_PREVIOUS_EDITFIELD: |
923 |
i = objnum - 1; |
924 |
while (i >= 0) |
925 |
{ |
926 |
if ((dlg[i].type == SGEDITFIELD) && |
927 |
((dlg[i].state & (SG_HIDDEN | SG_DISABLED)) == 0)) |
928 |
return i; |
929 |
i--; |
930 |
} |
931 |
break; |
932 |
|
933 |
case SG_NEXT_EDITFIELD: |
934 |
i = objnum + 1; |
935 |
while (dlg[i].type != -1) |
936 |
{ |
937 |
if ((dlg[i].type == SGEDITFIELD) && |
938 |
((dlg[i].state & (SG_HIDDEN | SG_DISABLED)) == 0)) |
939 |
return i; |
940 |
i++; |
941 |
} |
942 |
break; |
943 |
|
944 |
case SG_LAST_EDITFIELD: |
945 |
i = objnum + 1; |
946 |
j = -1; |
947 |
while (dlg[i].type != -1) |
948 |
{ |
949 |
if ((dlg[i].type == SGEDITFIELD) && |
950 |
((dlg[i].state & (SG_HIDDEN | SG_DISABLED)) == 0)) |
951 |
j = i; |
952 |
i++; |
953 |
} |
954 |
if (j != -1) |
955 |
return j; |
956 |
break; |
957 |
} |
958 |
|
959 |
return objnum; |
960 |
} |
961 |
|
962 |
|
963 |
/*-----------------------------------------------------------------------*/ |
964 |
/* |
965 |
Move cursor to another edit field. |
966 |
*/ |
967 |
void SDLGui_MoveCursor(SGOBJ *dlg, cursor_state *cursor, int mode) |
968 |
{ |
969 |
int new_object; |
970 |
|
971 |
new_object = SDLGui_FindEditField(dlg, cursor->object, mode); |
972 |
|
973 |
if (new_object != cursor->object) |
974 |
{ |
975 |
/* Erase old cursor */ |
976 |
cursor->blink_state = false; |
977 |
SDLGui_DrawCursor(dlg, cursor); |
978 |
|
979 |
cursor->object = new_object; |
980 |
cursor->position = strlen(dlg[new_object].txt); |
981 |
} |
982 |
else |
983 |
{ |
984 |
/* We stay in the same field */ |
985 |
/* Move cursor to begin or end of text depending on mode */ |
986 |
switch (mode) |
987 |
{ |
988 |
case SG_FIRST_EDITFIELD: |
989 |
case SG_PREVIOUS_EDITFIELD: |
990 |
cursor->position = 0; |
991 |
break; |
992 |
|
993 |
case SG_NEXT_EDITFIELD: |
994 |
case SG_LAST_EDITFIELD: |
995 |
cursor->position = strlen(dlg[new_object].txt); |
996 |
break; |
997 |
} |
998 |
} |
999 |
} |
1000 |
|
1001 |
|
1002 |
/*-----------------------------------------------------------------------*/ |
1003 |
/* |
1004 |
Handle mouse clicks on edit fields. |
1005 |
*/ |
1006 |
void SDLGui_ClickEditField(SGOBJ *dlg, cursor_state *cursor, int clicked_obj, int x) |
1007 |
{ |
1008 |
SDL_Rect coord; |
1009 |
int i, j; |
1010 |
|
1011 |
/* Erase old cursor */ |
1012 |
cursor->blink_state = false; |
1013 |
SDLGui_DrawCursor(dlg, cursor); |
1014 |
|
1015 |
SDLGui_ObjFullCoord(dlg, clicked_obj, &coord); |
1016 |
i = (x - coord.x + (fontwidth / 2)) / fontwidth; |
1017 |
j = strlen(dlg[clicked_obj].txt); |
1018 |
|
1019 |
cursor->object = clicked_obj; |
1020 |
cursor->position = MIN(i, j); |
1021 |
cursor->blink_state = true; |
1022 |
cursor->blink_counter = 0; |
1023 |
SDLGui_DrawCursor(dlg, cursor); |
1024 |
} |
1025 |
|
1026 |
|
1027 |
/*-----------------------------------------------------------------------*/ |
1028 |
/* |
1029 |
Handle mouse clicks. |
1030 |
*/ |
1031 |
int SDLGui_MouseClick(SGOBJ *dlg, int fx, int fy, cursor_state *cursor) |
1032 |
{ |
1033 |
int clicked_obj; |
1034 |
int return_obj = -1; |
1035 |
int original_state = 0; |
1036 |
int x, y; |
1037 |
|
1038 |
clicked_obj = SDLGui_FindObj(dlg, fx, fy); |
1039 |
|
1040 |
if (clicked_obj >= 0) |
1041 |
{ |
1042 |
original_state = dlg[clicked_obj].state; |
1043 |
SDLGui_UpdateObjState(dlg, clicked_obj, original_state, fx, fy); |
1044 |
|
1045 |
if (dlg[clicked_obj].flags & SG_TOUCHEXIT) |
1046 |
{ |
1047 |
return_obj = clicked_obj; |
1048 |
clicked_obj = -1; |
1049 |
} |
1050 |
} |
1051 |
|
1052 |
while (clicked_obj >= 0) |
1053 |
{ |
1054 |
SDL_Event evnt; |
1055 |
// SDL_PumpEvents() - not necessary, the main check_event thread calls it |
1056 |
if (SDL_PeepEvents(&evnt, 1, SDL_GETEVENT, SDL_EVENTMASK(SDL_USEREVENT))) |
1057 |
{ |
1058 |
switch (evnt.user.code) |
1059 |
{ |
1060 |
case SDL_USEREVENT: |
1061 |
// a signal that resolution has changed |
1062 |
// Restore clicked object original state |
1063 |
dlg[clicked_obj].state = original_state; |
1064 |
|
1065 |
// re-draw dialog |
1066 |
SDLGui_DrawDialog(dlg); |
1067 |
|
1068 |
// Exit from mouse click handling. |
1069 |
clicked_obj = -1; |
1070 |
break; |
1071 |
|
1072 |
case SDL_MOUSEBUTTONUP: |
1073 |
x = reinterpret_cast<intptr>(evnt.user.data1); |
1074 |
y = reinterpret_cast<intptr>(evnt.user.data2); |
1075 |
if (SDLGui_UpdateObjState(dlg, clicked_obj, original_state, x, y)) |
1076 |
{ |
1077 |
// true if mouse button is released over clicked object. |
1078 |
// If applicable, the object has been selected by |
1079 |
// SDLGui_UpdateObjState(). Let's do additional handling here. |
1080 |
|
1081 |
// Exit if object is an SG_EXIT one. |
1082 |
if (dlg[clicked_obj].flags & SG_EXIT) |
1083 |
return_obj = clicked_obj; |
1084 |
|
1085 |
// If it's a SG_RADIO object, deselect other objects in his group. |
1086 |
if (dlg[clicked_obj].flags & SG_RADIO) |
1087 |
SDLGui_SelectRadioObject(dlg, clicked_obj); |
1088 |
|
1089 |
if (dlg[clicked_obj].type == SGEDITFIELD) |
1090 |
SDLGui_ClickEditField(dlg, cursor, clicked_obj, x); |
1091 |
} |
1092 |
|
1093 |
// Exit from mouse click handling. |
1094 |
clicked_obj = -1; |
1095 |
|
1096 |
break; |
1097 |
} |
1098 |
} |
1099 |
else |
1100 |
{ |
1101 |
// No special event occured. |
1102 |
// Update object state according to mouse coordinates. |
1103 |
SDL_GetMouseState(&x, &y); |
1104 |
SDLGui_UpdateObjState(dlg, clicked_obj, original_state, x, y); |
1105 |
|
1106 |
// Wait a little to avoid eating CPU. |
1107 |
SDL_Delay(100); |
1108 |
} |
1109 |
} |
1110 |
|
1111 |
return return_obj; |
1112 |
} |
1113 |
|
1114 |
|
1115 |
/*-----------------------------------------------------------------------*/ |
1116 |
/* |
1117 |
Handle key press. |
1118 |
*/ |
1119 |
int SDLGui_KeyPress(SGOBJ *dlg, int keysym, int mod, cursor_state *cursor) |
1120 |
{ |
1121 |
int return_obj = -1; |
1122 |
int obj; |
1123 |
|
1124 |
if (cursor->object != -1) |
1125 |
{ |
1126 |
switch(keysym) |
1127 |
{ |
1128 |
case SDLK_RETURN: |
1129 |
case SDLK_KP_ENTER: |
1130 |
break; |
1131 |
|
1132 |
case SDLK_BACKSPACE: |
1133 |
if (cursor->position > 0) |
1134 |
{ |
1135 |
memmove(&dlg[cursor->object].txt[cursor->position-1], |
1136 |
&dlg[cursor->object].txt[cursor->position], |
1137 |
strlen(&dlg[cursor->object].txt[cursor->position])+1); |
1138 |
cursor->position--; |
1139 |
} |
1140 |
break; |
1141 |
|
1142 |
case SDLK_DELETE: |
1143 |
if(cursor->position < (int)strlen(dlg[cursor->object].txt)) |
1144 |
{ |
1145 |
memmove(&dlg[cursor->object].txt[cursor->position], |
1146 |
&dlg[cursor->object].txt[cursor->position+1], |
1147 |
strlen(&dlg[cursor->object].txt[cursor->position+1])+1); |
1148 |
} |
1149 |
break; |
1150 |
|
1151 |
case SDLK_LEFT: |
1152 |
if (cursor->position > 0) |
1153 |
cursor->position--; |
1154 |
break; |
1155 |
|
1156 |
case SDLK_RIGHT: |
1157 |
if (cursor->position < (int)strlen(dlg[cursor->object].txt)) |
1158 |
cursor->position++; |
1159 |
break; |
1160 |
|
1161 |
case SDLK_DOWN: |
1162 |
SDLGui_MoveCursor(dlg, cursor, SG_NEXT_EDITFIELD); |
1163 |
break; |
1164 |
|
1165 |
case SDLK_UP: |
1166 |
SDLGui_MoveCursor(dlg, cursor, SG_PREVIOUS_EDITFIELD); |
1167 |
break; |
1168 |
|
1169 |
case SDLK_TAB: |
1170 |
if (mod & KMOD_SHIFT) |
1171 |
SDLGui_MoveCursor(dlg, cursor, SG_PREVIOUS_EDITFIELD); |
1172 |
else |
1173 |
SDLGui_MoveCursor(dlg, cursor, SG_NEXT_EDITFIELD); |
1174 |
break; |
1175 |
|
1176 |
case SDLK_HOME: |
1177 |
if (mod & KMOD_CTRL) |
1178 |
SDLGui_MoveCursor(dlg, cursor, SG_FIRST_EDITFIELD); |
1179 |
else |
1180 |
cursor->position = 0; |
1181 |
break; |
1182 |
|
1183 |
case SDLK_END: |
1184 |
if (mod & KMOD_CTRL) |
1185 |
SDLGui_MoveCursor(dlg, cursor, SG_LAST_EDITFIELD); |
1186 |
else |
1187 |
cursor->position = strlen(dlg[cursor->object].txt); |
1188 |
break; |
1189 |
|
1190 |
default: |
1191 |
if ((keysym >= SDLK_KP0) && (keysym <= SDLK_KP9)) |
1192 |
{ |
1193 |
// map numpad numbers to normal numbers |
1194 |
keysym -= (SDLK_KP0 - SDLK_0); |
1195 |
} |
1196 |
/* If it is a "good" key then insert it into the text field */ |
1197 |
if ((keysym >= SDLK_SPACE) && (keysym < SDLK_KP0)) |
1198 |
{ |
1199 |
if (strlen(dlg[cursor->object].txt) < dlg[cursor->object].w) |
1200 |
{ |
1201 |
memmove(&dlg[cursor->object].txt[cursor->position+1], |
1202 |
&dlg[cursor->object].txt[cursor->position], |
1203 |
strlen(&dlg[cursor->object].txt[cursor->position])+1); |
1204 |
if (mod & KMOD_SHIFT) |
1205 |
dlg[cursor->object].txt[cursor->position] = toupper(keysym); |
1206 |
else |
1207 |
dlg[cursor->object].txt[cursor->position] = keysym; |
1208 |
cursor->position += 1; |
1209 |
} |
1210 |
} |
1211 |
break; |
1212 |
} |
1213 |
} |
1214 |
|
1215 |
switch(keysym) |
1216 |
{ |
1217 |
case SDLK_RETURN: |
1218 |
case SDLK_KP_ENTER: |
1219 |
obj = SDLGui_FindDefaultObj(dlg); |
1220 |
if (obj >= 0) |
1221 |
{ |
1222 |
dlg[obj].state ^= SG_SELECTED; |
1223 |
SDLGui_DrawObject(dlg, obj); |
1224 |
SDLGui_RefreshObj(dlg, obj); |
1225 |
if (dlg[obj].flags & (SG_EXIT | SG_TOUCHEXIT)) |
1226 |
{ |
1227 |
return_obj = obj; |
1228 |
SDL_Delay(300); |
1229 |
} |
1230 |
} |
1231 |
break; |
1232 |
} |
1233 |
|
1234 |
// Force cursor display. Should ease text input. |
1235 |
cursor->blink_state = true; |
1236 |
cursor->blink_counter = 0; |
1237 |
// Redraw current edit field... |
1238 |
SDLGui_DrawCursor(dlg, cursor); |
1239 |
|
1240 |
return return_obj; |
1241 |
} |
1242 |
|
1243 |
|
1244 |
/*-----------------------------------------------------------------------*/ |
1245 |
/* |
1246 |
Used to update screen while GUI is opened. Return a list of rectangles that |
1247 |
covers the screen without overlaping the current dialog. |
1248 |
*/ |
1249 |
SDL_Rect *SDLGui_GetFirstBackgroundRect(void) |
1250 |
{ |
1251 |
// Reset counter... |
1252 |
BackgroundRectCounter = SG_BCKGND_RECT_BEGIN; |
1253 |
// And returns first rectangle |
1254 |
return SDLGui_GetNextBackgroundRect(); |
1255 |
} |
1256 |
|
1257 |
|
1258 |
/*-----------------------------------------------------------------------*/ |
1259 |
/* |
1260 |
Returns next rectangle to be redrawn to update screen or NULL if we reached |
1261 |
the end of the list. |
1262 |
This code is "flying dialog" ready :) |
1263 |
It will need some updating if we implement popup buttons handled by sdlgui, |
1264 |
as the popup could be higher than the root box... |
1265 |
I used some recursivity here to simplify the code. |
1266 |
*/ |
1267 |
SDL_Rect *SDLGui_GetNextBackgroundRect(void) |
1268 |
{ |
1269 |
SDL_Rect *return_rect = NULL; |
1270 |
|
1271 |
switch (BackgroundRectCounter) |
1272 |
{ |
1273 |
case SG_BCKGND_RECT_END: |
1274 |
// Nothing to do : return_rect is already initialized to NULL. |
1275 |
break; |
1276 |
|
1277 |
case SG_BCKGND_RECT_BEGIN: |
1278 |
if (DialogRect.w == 0) |
1279 |
{ |
1280 |
// The dialog is not drawn yet... |
1281 |
// Let's redraw the full screen. |
1282 |
BackgroundRect.x = 0; |
1283 |
BackgroundRect.y = 0; |
1284 |
BackgroundRect.w = sdlscrn->w; |
1285 |
BackgroundRect.h = sdlscrn->h; |
1286 |
return_rect = &BackgroundRect; |
1287 |
// We reached the end of the list. |
1288 |
BackgroundRectCounter = SG_BCKGND_RECT_END; |
1289 |
} |
1290 |
else |
1291 |
{ |
1292 |
BackgroundRectCounter = SG_BCKGND_RECT_TOP; |
1293 |
return_rect = SDLGui_GetNextBackgroundRect(); |
1294 |
} |
1295 |
break; |
1296 |
|
1297 |
case SG_BCKGND_RECT_TOP: |
1298 |
BackgroundRectCounter = SG_BCKGND_RECT_LEFT; |
1299 |
if (DialogRect.y > 0) |
1300 |
{ |
1301 |
BackgroundRect.x = 0; |
1302 |
BackgroundRect.y = 0; |
1303 |
BackgroundRect.w = sdlscrn->w; |
1304 |
BackgroundRect.h = DialogRect.y; |
1305 |
return_rect = &BackgroundRect; |
1306 |
} |
1307 |
else |
1308 |
return_rect = SDLGui_GetNextBackgroundRect(); |
1309 |
break; |
1310 |
|
1311 |
case SG_BCKGND_RECT_LEFT: |
1312 |
BackgroundRectCounter = SG_BCKGND_RECT_RIGHT; |
1313 |
if (DialogRect.x > 0) |
1314 |
{ |
1315 |
BackgroundRect.x = 0; |
1316 |
BackgroundRect.y = (DialogRect.y > 0) ? DialogRect.y : 0; |
1317 |
BackgroundRect.w = DialogRect.x; |
1318 |
BackgroundRect.h = |
1319 |
((DialogRect.y + DialogRect.h) < (int)sdlscrn->h) ? |
1320 |
(DialogRect.h + DialogRect.y - BackgroundRect.y) : |
1321 |
(sdlscrn->h - DialogRect.y); |
1322 |
return_rect = &BackgroundRect; |
1323 |
} |
1324 |
else |
1325 |
return_rect = SDLGui_GetNextBackgroundRect(); |
1326 |
break; |
1327 |
|
1328 |
case SG_BCKGND_RECT_RIGHT: |
1329 |
BackgroundRectCounter = SG_BCKGND_RECT_BOTTOM; |
1330 |
if ((DialogRect.x + DialogRect.w) < (int)sdlscrn->w) |
1331 |
{ |
1332 |
BackgroundRect.x = DialogRect.x + DialogRect.w; |
1333 |
BackgroundRect.y = (DialogRect.y > 0) ? DialogRect.y : 0; |
1334 |
BackgroundRect.w = sdlscrn->w - (DialogRect.x + DialogRect.w); |
1335 |
BackgroundRect.h = |
1336 |
((DialogRect.y + DialogRect.h) < (int)sdlscrn->w) ? |
1337 |
(DialogRect.h + DialogRect.y - BackgroundRect.y) : |
1338 |
(sdlscrn->h - DialogRect.y); |
1339 |
return_rect = &BackgroundRect; |
1340 |
} |
1341 |
else |
1342 |
return_rect = SDLGui_GetNextBackgroundRect(); |
1343 |
break; |
1344 |
|
1345 |
case SG_BCKGND_RECT_BOTTOM: |
1346 |
BackgroundRectCounter = SG_BCKGND_RECT_END; |
1347 |
if ((DialogRect.y + DialogRect.h) < (int)sdlscrn->h) |
1348 |
{ |
1349 |
// Bottom |
1350 |
BackgroundRect.x = 0; |
1351 |
BackgroundRect.y = DialogRect.y + DialogRect.h; |
1352 |
BackgroundRect.w = sdlscrn->w; |
1353 |
BackgroundRect.h = sdlscrn->h - (DialogRect.y + DialogRect.h); |
1354 |
return_rect = &BackgroundRect; |
1355 |
} |
1356 |
else |
1357 |
return_rect = SDLGui_GetNextBackgroundRect(); |
1358 |
break; |
1359 |
} |
1360 |
|
1361 |
return return_rect; |
1362 |
} |
1363 |
|
1364 |
SDL_Event getEvent(SGOBJ *dlg, cursor_state *cursor) |
1365 |
{ |
1366 |
int i = 0; |
1367 |
while(1) { |
1368 |
SDL_Event evnt; |
1369 |
// fprintf(stderr, "Debug Before Peep events\n"); |
1370 |
if (SDL_PeepEvents(&evnt, 1, SDL_GETEVENT, SDL_EVENTMASK(SDL_USEREVENT))) |
1371 |
{ |
1372 |
fprintf(stderr, "Debug Peep events %d\n",i++); |
1373 |
SDL_Event e; |
1374 |
switch(evnt.user.code) |
1375 |
{ |
1376 |
case SDL_KEYDOWN: |
1377 |
case SDL_KEYUP: |
1378 |
e.type = evnt.user.code; |
1379 |
e.key.keysym.sym = (SDLKey)reinterpret_cast<uintptr>(evnt.user.data1); |
1380 |
e.key.keysym.mod = (SDLMod)reinterpret_cast<uintptr>(evnt.user.data2); |
1381 |
return e; |
1382 |
|
1383 |
case SDL_MOUSEBUTTONDOWN: |
1384 |
case SDL_MOUSEBUTTONUP: |
1385 |
e.type = evnt.user.code; |
1386 |
if (evnt.user.code == SDL_MOUSEBUTTONDOWN) |
1387 |
fprintf(stderr, "Debug mouse down\n"); |
1388 |
else |
1389 |
fprintf(stderr, "Debug mouse down\n"); |
1390 |
e.button.x = reinterpret_cast<intptr>(evnt.user.data1); |
1391 |
e.button.y = reinterpret_cast<intptr>(evnt.user.data2); |
1392 |
return e; |
1393 |
|
1394 |
case SDL_USEREVENT: |
1395 |
// a signal that resolution has changed |
1396 |
if (dlg != NULL) |
1397 |
SDLGui_DrawDialog(dlg); // re-draw dialog |
1398 |
break; |
1399 |
} |
1400 |
} |
1401 |
else |
1402 |
{ |
1403 |
// No special event occured. |
1404 |
// Wait a little to avoid eating CPU. |
1405 |
SDL_Delay(50); |
1406 |
if (cursor != NULL) { |
1407 |
cursor->blink_counter++; |
1408 |
if (cursor->blink_counter >= 10) { |
1409 |
cursor->blink_counter = 0; |
1410 |
cursor->blink_state = !cursor->blink_state; |
1411 |
if (dlg != NULL) |
1412 |
SDLGui_DrawCursor(dlg, cursor); |
1413 |
} |
1414 |
} |
1415 |
} |
1416 |
} |
1417 |
} |
1418 |
|
1419 |
/*-----------------------------------------------------------------------*/ |
1420 |
/* |
1421 |
Show and process a dialog. Returns the button number that has been |
1422 |
pressed. Does NOT handle SDL_QUIT - you must handle it before you |
1423 |
pass the input event to the SDL GUI. |
1424 |
*/ |
1425 |
int SDLGui_DoDialog(SGOBJ *dlg) |
1426 |
{ |
1427 |
int return_obj = -1; |
1428 |
int obj; |
1429 |
int x, y; |
1430 |
// int keysym, mod; |
1431 |
cursor_state cursor; |
1432 |
|
1433 |
// Is the left mouse button still pressed? Yes -> Handle TOUCHEXIT objects here |
1434 |
bool stillPressed = (SDL_GetMouseState(&x, &y) & SDL_BUTTON(1)); |
1435 |
obj = SDLGui_FindObj(dlg, x, y); |
1436 |
if (stillPressed && (obj >= 0) && (dlg[obj].flags & SG_TOUCHEXIT)) |
1437 |
{ |
1438 |
// Mouse button is pressed over a TOUCHEXIT Button |
1439 |
// Toogle its state before drawing anything (it has been deselected before). |
1440 |
dlg[obj].state ^= SG_SELECTED; |
1441 |
|
1442 |
return_obj = obj; |
1443 |
} |
1444 |
|
1445 |
cursor.object = SDLGui_FindEditField(dlg, -1, SG_FIRST_EDITFIELD); |
1446 |
cursor.position = (cursor.object != -1) ? strlen(dlg[cursor.object].txt) : 0; |
1447 |
cursor.blink_counter = 0; |
1448 |
cursor.blink_state = true; |
1449 |
|
1450 |
SDLGui_DrawDialog(dlg); |
1451 |
|
1452 |
/* The main loop */ |
1453 |
while (return_obj < 0) |
1454 |
{ |
1455 |
fprintf(stderr, "Debug SDL main loop\n"); |
1456 |
SDL_Event evnt = getEvent(dlg, &cursor); |
1457 |
fprintf(stderr, "Debug SDL main loop got event\n"); |
1458 |
switch(evnt.type) |
1459 |
{ |
1460 |
case SDL_KEYDOWN: |
1461 |
return_obj = SDLGui_KeyPress(dlg, evnt.key.keysym.sym, evnt.key.keysym.mod, &cursor); |
1462 |
break; |
1463 |
|
1464 |
case SDL_MOUSEBUTTONDOWN: |
1465 |
return_obj = SDLGui_MouseClick(dlg, evnt.button.x, evnt.button.y, &cursor); |
1466 |
break; |
1467 |
} |
1468 |
} |
1469 |
fprintf(stderr, "Debug SDL main loop finished\n"); |
1470 |
if (dlg[return_obj].type == SGBUTTON) |
1471 |
{ |
1472 |
// Deselect button... |
1473 |
// BUG: This should be caller responsibility |
1474 |
dlg[return_obj].state ^= SG_SELECTED; |
1475 |
} |
1476 |
|
1477 |
return return_obj; |
1478 |
} |