1 #ifdef HAVE_CONFIG_H
2 # include "elementary_config.h"
3 #endif
4 #include <Elementary.h>
5
6 typedef struct _State State;
7 typedef struct _Slice Slice;
8
9 typedef struct _Vertex2 Vertex2;
10 typedef struct _Vertex3 Vertex3;
11
12 struct _State
13 {
14 Evas_Object *front, *back;
15 Evas_Coord down_x, down_y, x, y;
16 Eina_Bool down : 1;
17 Eina_Bool backflip : 1;
18
19 Ecore_Animator *anim;
20 Ecore_Job *job;
21 Evas_Coord ox, oy, w, h;
22 int slices_w, slices_h;
23 Slice **slices, **slices2;
24 int dir; // 0 == left, 1 == right, 2 == up, 3 == down
25 int finish;
26 };
27
28 struct _Slice
29 {
30 Evas_Object *obj;
31 // (0)---(1)
32 // | |
33 // | |
34 // (3)---(2)
35 double u[4], v[4], x[4], y[4], z[4];
36 };
37
38 struct _Vertex2
39 {
40 double x, y;
41 };
42
43 struct _Vertex3
44 {
45 double x, y, z;
46 };
47
48 static State state =
49 {
50 NULL, NULL,
51 0, 0, 0, 0,
52 0,
53 0,
54
55 NULL,
56 NULL,
57 0, 0, 0, 0,
58 0, 0,
59 NULL, NULL,
60 -1,
61 0
62 };
63
64 static Slice *
_slice_new(State * st EINA_UNUSED,Evas_Object * obj)65 _slice_new(State *st EINA_UNUSED, Evas_Object *obj)
66 {
67 Slice *sl;
68
69 sl = calloc(1, sizeof(Slice));
70 if (!sl) return NULL;
71 sl->obj = evas_object_image_add(evas_object_evas_get(obj));
72 evas_object_image_smooth_scale_set(sl->obj, EINA_FALSE);
73 evas_object_pass_events_set(sl->obj, EINA_TRUE);
74 evas_object_image_source_set(sl->obj, obj);
75 return sl;
76 }
77
78 static void
_slice_free(Slice * sl)79 _slice_free(Slice *sl)
80 {
81 evas_object_del(sl->obj);
82 free(sl);
83 }
84
85 static void
_slice_apply(State * st,Slice * sl,Evas_Coord x EINA_UNUSED,Evas_Coord y EINA_UNUSED,Evas_Coord w,Evas_Coord h EINA_UNUSED,Evas_Coord ox,Evas_Coord oy,Evas_Coord ow,Evas_Coord oh)86 _slice_apply(State *st, Slice *sl,
87 Evas_Coord x EINA_UNUSED, Evas_Coord y EINA_UNUSED, Evas_Coord w, Evas_Coord h EINA_UNUSED,
88 Evas_Coord ox, Evas_Coord oy, Evas_Coord ow, Evas_Coord oh)
89 {
90 Evas_Map *m;
91 int i;
92
93 m = evas_map_new(4);
94 if (!m) return;
95 evas_map_smooth_set(m, EINA_FALSE);
96 for (i = 0; i < 4; i++)
97 {
98 evas_map_point_color_set(m, i, 255, 255, 255, 255);
99 if (st->dir == 0)
100 {
101 int p[4] = { 0, 1, 2, 3 };
102 evas_map_point_coord_set(m, i, ox + sl->x[p[i]], oy + sl->y[p[i]], sl->z[p[i]]);
103 evas_map_point_image_uv_set(m, i, sl->u[p[i]] , sl->v[p[i]]);
104 }
105 else if (st->dir == 1)
106 {
107 int p[4] = { 1, 0, 3, 2 };
108 evas_map_point_coord_set(m, i, ox + (w - sl->x[p[i]]), oy + sl->y[p[i]], sl->z[p[i]]);
109 evas_map_point_image_uv_set(m, i, ow - sl->u[p[i]] , sl->v[p[i]]);
110 }
111 else if (st->dir == 2)
112 {
113 int p[4] = { 1, 0, 3, 2 };
114 evas_map_point_coord_set(m, i, ox + sl->y[p[i]], oy + sl->x[p[i]], sl->z[p[i]]);
115 evas_map_point_image_uv_set(m, i, sl->v[p[i]] , sl->u[p[i]]);
116 }
117 else if (st->dir == 3)
118 {
119 int p[4] = { 0, 1, 2, 3 };
120 evas_map_point_coord_set(m, i, ox + sl->y[p[i]], oy + (w - sl->x[p[i]]), sl->z[p[i]]);
121 evas_map_point_image_uv_set(m, i, sl->v[p[i]] , oh - sl->u[p[i]]);
122 }
123 }
124 evas_object_map_enable_set(sl->obj, EINA_TRUE);
125 evas_object_image_fill_set(sl->obj, 0, 0, ow, oh);
126 evas_object_map_set(sl->obj, m);
127 evas_map_free(m);
128 }
129
130 static void
_slice_3d(State * st EINA_UNUSED,Slice * sl,Evas_Coord x,Evas_Coord y,Evas_Coord w,Evas_Coord h)131 _slice_3d(State *st EINA_UNUSED, Slice *sl, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h)
132 {
133 Evas_Map *m = evas_map_dup(evas_object_map_get(sl->obj));
134 int i;
135
136 if (!m) return;
137 // vanishing point is center of page, and focal dist is 1024
138 evas_map_util_3d_perspective(m, x + (w / 2), y + (h / 2), 0, 1024);
139 for (i = 0; i < 4; i++)
140 {
141 Evas_Coord xx, yy, zz;
142 evas_map_point_coord_get(m, i, &xx, &yy, &zz);
143 evas_map_point_coord_set(m, i, xx, yy, 0);
144 }
145 if (evas_map_util_clockwise_get(m)) evas_object_show(sl->obj);
146 else evas_object_hide(sl->obj);
147 evas_object_map_set(sl->obj, m);
148 evas_map_free(m);
149 }
150
151 static void
_slice_light(State * st EINA_UNUSED,Slice * sl,Evas_Coord x,Evas_Coord y,Evas_Coord w,Evas_Coord h)152 _slice_light(State *st EINA_UNUSED, Slice *sl, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h)
153 {
154 Evas_Map *m = evas_map_dup(evas_object_map_get(sl->obj));
155 int i;
156
157 if (!m) return;
158 evas_map_util_3d_lighting(m,
159 // light position
160 // (centered over page 10 * h toward camera)
161 x + (w / 2) , y + (h / 2) , -10000,
162 255, 255, 255, // light color
163 0 , 0 , 0); // ambient minimum
164 // multiply brightness by 1.2 to make lightish bits all white so we dont
165 // add shading where we could otherwise be pure white
166 for (i = 0; i < 4; i++)
167 {
168 int r, g, b, a;
169
170 evas_map_point_color_get(m, i, &r, &g, &b, &a);
171 r = (double)r * 1.2; if (r > 255) r = 255;
172 g = (double)g * 1.2; if (g > 255) g = 255;
173 b = (double)b * 1.2; if (b > 255) b = 255;
174 evas_map_point_color_set(m, i, r, g, b, a);
175 }
176 evas_object_map_set(sl->obj, m);
177 evas_map_free(m);
178 }
179
180 static void
_slice_xyz(State * st EINA_UNUSED,Slice * sl,double xx1,double yy1,double zz1,double xx2,double yy2,double zz2,double xx3,double yy3,double zz3,double xx4,double yy4,double zz4)181 _slice_xyz(State *st EINA_UNUSED, Slice *sl,
182 double xx1, double yy1, double zz1,
183 double xx2, double yy2, double zz2,
184 double xx3, double yy3, double zz3,
185 double xx4, double yy4, double zz4)
186 {
187 sl->x[0] = xx1; sl->y[0] = yy1; sl->z[0] = zz1;
188 sl->x[1] = xx2; sl->y[1] = yy2; sl->z[1] = zz2;
189 sl->x[2] = xx3; sl->y[2] = yy3; sl->z[2] = zz3;
190 sl->x[3] = xx4; sl->y[3] = yy4; sl->z[3] = zz4;
191 }
192
193 static void
_slice_uv(State * st EINA_UNUSED,Slice * sl,double u1,double v1,double u2,double v2,double u3,double v3,double u4,double v4)194 _slice_uv(State *st EINA_UNUSED, Slice *sl,
195 double u1, double v1,
196 double u2, double v2,
197 double u3, double v3,
198 double u4, double v4)
199 {
200 sl->u[0] = u1; sl->v[0] = v1;
201 sl->u[1] = u2; sl->v[1] = v2;
202 sl->u[2] = u3; sl->v[2] = v3;
203 sl->u[3] = u4; sl->v[3] = v4;
204 }
205
206 static void
_deform_point(Vertex2 * vi,Vertex3 * vo,double rho,double theta,double A)207 _deform_point(Vertex2 *vi, Vertex3 *vo, double rho, double theta, double A)
208 {
209 // ^Y
210 // |
211 // | X
212 // +---->
213 // theta == cone angle (0 -> PI/2)
214 // A == distance of cone apex from origin
215 // rho == angle of cone from vertical axis (...-PI/2 to PI/2...)
216 Vertex3 v1;
217 double d, r, b;
218
219 d = sqrt((vi->x * vi->x) + pow(vi->y - A, 2));
220 r = d * sin(theta);
221 b = asin(vi->x / d) / sin(theta);
222
223 v1.x = r * sin(b);
224 v1.y = d + A - (r * (1 - cos(b)) * sin(theta));
225 v1.z = r * (1 - cos(b)) * cos(theta);
226
227 vo->x = (v1.x * cos(rho)) - (v1.z * sin(rho));
228 vo->y = v1.y;
229 vo->z = (v1.x * sin(rho)) + (v1.z * cos(rho));
230 }
231
232 static void
_interp_point(Vertex3 * vi1,Vertex3 * vi2,Vertex3 * vo,double v)233 _interp_point(Vertex3 *vi1, Vertex3 *vi2, Vertex3 *vo, double v)
234 {
235 vo->x = (v * vi2->x) + ((1.0 - v) * vi1->x);
236 vo->y = (v * vi2->y) + ((1.0 - v) * vi1->y);
237 vo->z = (v * vi2->z) + ((1.0 - v) * vi1->z);
238 }
239
240 static void
_state_slices_clear(State * st)241 _state_slices_clear(State *st)
242 {
243 int i, j, num;
244
245 if (st->slices)
246 {
247 num = 0;
248 for (j = 0; j < st->slices_h; j++)
249 {
250 for (i = 0; i < st->slices_w; i++)
251 {
252 if (st->slices[num]) _slice_free(st->slices[num]);
253 if (st->slices2[num]) _slice_free(st->slices2[num]);
254 num++;
255 }
256 }
257 free(st->slices);
258 free(st->slices2);
259 st->slices = NULL;
260 st->slices2 = NULL;
261 }
262 st->slices_w = 0;
263 st->slices_h = 0;
264 }
265
266 static int
_slice_obj_color_sum(Slice * s,int p,int * r,int * g,int * b,int * a)267 _slice_obj_color_sum(Slice *s, int p, int *r, int *g, int *b, int *a)
268 {
269 Evas_Map *m;
270 int rr = 0, gg = 0, bb = 0, aa = 0;
271
272 if (!s) return 0;
273 m = (Evas_Map *)evas_object_map_get(s->obj);
274 if (!m) return 0;
275 evas_map_point_color_get(m, p, &rr, &gg, &bb, &aa);
276 *r += rr; *g += gg; *b += bb; *a += aa;
277 return 1;
278 }
279
280 static void
_slice_obj_color_set(Slice * s,int p,int r,int g,int b,int a)281 _slice_obj_color_set(Slice *s, int p, int r, int g, int b, int a)
282 {
283 Evas_Map *m;
284
285 if (!s) return;
286 m = (Evas_Map *)evas_object_map_get(s->obj);
287 if (!m) return;
288 evas_map_point_color_set(m, p, r, g, b, a);
289 evas_object_map_set(s->obj, m);
290 }
291
292 static void
_slice_obj_vert_color_merge(Slice * s1,int p1,Slice * s2,int p2,Slice * s3,int p3,Slice * s4,int p4)293 _slice_obj_vert_color_merge(Slice *s1, int p1, Slice *s2, int p2,
294 Slice *s3, int p3, Slice *s4, int p4)
295 {
296 int r = 0, g = 0, b = 0, a = 0, n = 0;
297
298 n += _slice_obj_color_sum(s1, p1, &r, &g, &b, &a);
299 n += _slice_obj_color_sum(s2, p2, &r, &g, &b, &a);
300 n += _slice_obj_color_sum(s3, p3, &r, &g, &b, &a);
301 n += _slice_obj_color_sum(s4, p4, &r, &g, &b, &a);
302
303 if (n < 1) return;
304 r /= n; g /= n; b /= n; a /= n;
305
306 _slice_obj_color_set(s1, p1, r, g, b, a);
307 _slice_obj_color_set(s2, p2, r, g, b, a);
308 _slice_obj_color_set(s3, p3, r, g, b, a);
309 _slice_obj_color_set(s4, p4, r, g, b, a);
310 }
311
312 static int
_state_update(State * st)313 _state_update(State *st)
314 {
315 Evas_Coord xx1, yy1, xx2, yy2, mx, my, dst, dx, dy;
316 Evas_Coord x, y, w, h, ox, oy, ow, oh;
317 int i, j, num, nn, jump, num2;
318 Slice *sl;
319 double b, minv = 0.0, minva, mgrad;
320 int gx, gy, gszw, gszh, gw, gh, col, row, nw, nh;
321 double rho, A, theta, perc, n, rhol, Al, thetal;
322 Vertex3 *tvo, *tvol;
323
324 st->backflip = 0;
325
326 evas_object_geometry_get(st->front, &x, &y, &w, &h);
327 ox = x; oy = y; ow = w; oh = h;
328 xx1 = st->down_x;
329 yy1 = st->down_y;
330 xx2 = st->x;
331 yy2 = st->y;
332
333 dx = xx2 - xx1;
334 dy = yy2 - yy1;
335 dst = sqrt((dx * dx) + (dy * dy));
336 if (st->dir == -1)
337 {
338 if (dst < 20) // MAGIC: 20 == drag hysterisis
339 return 0;
340 }
341 if (st->dir == -1)
342 {
343 if ((xx1 > (w / 2)) && (dx < 0) && (abs(dx) > abs(dy))) st->dir = 0; // left
344 else if ((xx1 < (w / 2)) && (dx >= 0) && (abs(dx) > abs(dy))) st->dir = 1; // right
345 else if ((yy1 > (h / 2)) && (dy < 0) && (abs(dy) >= abs(dx))) st->dir = 2; // up
346 else if ((yy1 < (h / 2)) && (dy >= 0) && (abs(dy) >= abs(dx))) st->dir = 3; // down
347 if (st->dir == -1) return 0;
348 }
349 if (st->dir == 0)
350 {
351 // no nothing. left drag is standard
352 }
353 else if (st->dir == 1)
354 {
355 xx1 = (w - 1) - xx1;
356 xx2 = (w - 1) - xx2;
357 }
358 else if (st->dir == 2)
359 {
360 Evas_Coord tmp;
361
362 tmp = xx1; xx1 = yy1; yy1 = tmp;
363 tmp = xx2; xx2 = yy2; yy2 = tmp;
364 tmp = w; w = h; h = tmp;
365 }
366 else if (st->dir == 3)
367 {
368 Evas_Coord tmp;
369
370 tmp = xx1; xx1 = yy1; yy1 = tmp;
371 tmp = xx2; xx2 = yy2; yy2 = tmp;
372 tmp = w; w = h; h = tmp;
373 xx1 = (w - 1) - xx1;
374 xx2 = (w - 1) - xx2;
375 }
376
377 if (xx2 >= xx1) xx2 = xx1 - 1;
378 mx = (xx1 + xx2) / 2;
379 my = (yy1 + yy2) / 2;
380
381 if (mx < 0) mx = 0;
382 else if (mx >= w) mx = w - 1;
383 if (my < 0) my = 0;
384 else if (my >= h) my = h - 1;
385
386 mgrad = (double)(yy1 - yy2) / (double)(xx1 - xx2);
387
388 if (mx < 1) mx = 1; // quick hack to keep curl line visible
389
390 if (EINA_DBL_EQ(mgrad, 0.0)) // special horizontal case
391 mgrad = 0.001; // quick dirty hack for now
392 // else
393 {
394 minv = 1.0 / mgrad;
395 // y = (m * x) + b
396 b = my + (minv * mx);
397 }
398 if ((b >= -5) && (b <= (h + 5)))
399 {
400 if (minv > 0.0) // clamp to h
401 {
402 minv = (double)(h + 5 - my) / (double)(mx);
403 b = my + (minv * mx);
404 }
405 else // clamp to 0
406 {
407 minv = (double)(-5 - my) / (double)(mx);
408 b = my + (minv * mx);
409 }
410 }
411
412 perc = (double)xx2 / (double)xx1;
413 if (perc < 0.0) perc = 0.0;
414 else if (perc > 1.0) perc = 1.0;
415
416 minva = atan(minv) / (M_PI / 2);
417 if (minva < 0.0) minva = -minva;
418
419 // A = apex of cone
420 if (b <= 0) A = b;
421 else A = h - b;
422 if (A < -(h * 20)) A = -h * 20;
423 //--//
424 Al = -5;
425
426 // rho = is how much the page is turned
427 n = 1.0 - perc;
428 n = 1.0 - cos(n * M_PI / 2.0);
429 n = n * n;
430 rho = -(n * M_PI);
431 //--//
432 rhol = -(n * M_PI);
433
434 // theta == curliness (how much page culrs in on itself
435 n = sin((1.0 - perc) * M_PI);
436 n = n * 1.2;
437 theta = 7.86 + n;
438 //--//
439 n = sin((1.0 - perc) * M_PI);
440 n = 1.0 - n;
441 n = n * n;
442 n = 1.0 - n;
443 thetal = 7.86 + n;
444
445 nw = 16;
446 nh = 16;
447 gszw = w / nw;
448 gszh = h / nh;
449 if (gszw < 4) gszw = 4;
450 if (gszh < 4) gszh = 4;
451
452 nw = (w + gszw - 1) / gszw;
453 nh = (h + gszh - 1) / gszh;
454 if ((st->slices_w != nw) || (st->slices_h != nh)) _state_slices_clear(st);
455 st->slices_w = nw;
456 st->slices_h = nh;
457 if (!st->slices)
458 {
459 st->slices = calloc(st->slices_w * st->slices_h, sizeof(Slice *));
460 if (!st->slices) return 0;
461 st->slices2 = calloc(st->slices_w * st->slices_h, sizeof(Slice *));
462 if (!st->slices2)
463 {
464 free(st->slices);
465 st->slices = NULL;
466 return 0;
467 }
468 }
469
470 num = (st->slices_w + 1) * (st->slices_h + 1);
471
472 tvo = alloca(sizeof(Vertex3) * num);
473 tvol = alloca(sizeof(Vertex3) * (st->slices_w + 1));
474
475 for (col = 0, gx = 0; gx <= (w + gszw - 1); gx += gszw, col++)
476 {
477 Vertex2 vil;
478
479 vil.x = gx;
480 vil.y = h - gx;
481 _deform_point(&vil, &(tvol[col]), rhol, thetal, Al);
482 }
483
484 n = minva * sin(perc * M_PI);
485 n = n * n;
486
487 num = 0;
488 for (col = 0, gx = 0; gx <= (w + gszw - 1); gx += gszw, col++)
489 {
490 for (gy = 0; gy <= (h + gszh - 1); gy += gszh)
491 {
492 Vertex2 vi;
493 Vertex3 vo, tvo1;
494
495 if (gx > w) vi.x = w;
496 else vi.x = gx;
497 if (gy > h) vi.y = h;
498 else vi.y = gy;
499 _deform_point(&vi, &vo, rho, theta, A);
500 tvo1 = tvol[col];
501 if (gy > h) tvo1.y = h;
502 else tvo1.y = gy;
503 _interp_point(&vo, &tvo1, &(tvo[num]), n);
504 num++;
505 }
506 }
507
508 jump = st->slices_h + 1;
509 for (col = 0, gx = 0; gx < w; gx += gszw, col++)
510 {
511 num = st->slices_h * col;
512 num2 = jump * col;
513
514 gw = gszw;
515 if ((gx + gw) > w) gw = w - gx;
516
517 for (row = 0, gy = 0; gy < h; gy += gszh, row++)
518 {
519 Vertex3 vo[4];
520
521 memset(vo, 0, sizeof(vo));
522
523 if (b > 0) nn = num + st->slices_h - row - 1;
524 else nn = num + row;
525
526 gh = gszh;
527 if ((gy + gh) > h) gh = h - gy;
528
529 vo[0] = tvo[num2 + row];
530 vo[1] = tvo[num2 + row + jump];
531 vo[2] = tvo[num2 + row + jump + 1];
532 vo[3] = tvo[num2 + row + 1];
533 #define SWP(a, b) do {typeof(a) vt; vt = (a); (a) = (b); (b) = vt;} while (0)
534 if (b > 0)
535 {
536 SWP(vo[0], vo[3]);
537 SWP(vo[1], vo[2]);
538 vo[0].y = h - vo[0].y;
539 vo[1].y = h - vo[1].y;
540 vo[2].y = h - vo[2].y;
541 vo[3].y = h - vo[3].y;
542 }
543
544 // FRONT
545 sl = st->slices[nn];
546 if (!sl)
547 {
548 sl = _slice_new(st, st->front);
549 st->slices[nn] = sl;
550 }
551 _slice_xyz(st, sl,
552 vo[0].x, vo[0].y, vo[0].z,
553 vo[1].x, vo[1].y, vo[1].z,
554 vo[2].x, vo[2].y, vo[2].z,
555 vo[3].x, vo[3].y, vo[3].z);
556 if (b <= 0)
557 _slice_uv(st, sl,
558 gx, gy, gx + gw, gy,
559 gx + gw, gy + gh, gx, gy + gh);
560 else
561 _slice_uv(st, sl,
562 gx, h - (gy + gh), gx + gw, h - (gy + gh),
563 gx + gw, h - gy, gx, h - gy);
564
565 // BACK
566 sl = st->slices2[nn];
567 if (!sl)
568 {
569 sl = _slice_new(st, st->back);
570 st->slices2[nn] = sl;
571 }
572
573 _slice_xyz(st, sl,
574 vo[1].x, vo[1].y, vo[1].z,
575 vo[0].x, vo[0].y, vo[0].z,
576 vo[3].x, vo[3].y, vo[3].z,
577 vo[2].x, vo[2].y, vo[2].z);
578 if (st->backflip)
579 {
580 if (b <= 0)
581 _slice_uv(st, sl,
582 gx + gw, gy, gx, gy,
583 gx, gy + gh, gx + gw, gy + gh);
584 else
585 _slice_uv(st, sl,
586 gx + gw, h - (gy + gh), gx, h - (gy + gh),
587 gx, h - gy, gx + gw, h - gy);
588 }
589 else
590 {
591 if (b <= 0)
592 _slice_uv(st, sl,
593 w - (gx + gw), gy, w - (gx), gy,
594 w - (gx), gy + gh, w - (gx + gw), gy + gh);
595 else
596 _slice_uv(st, sl,
597 w - (gx + gw), h - (gy + gh), w - (gx), h - (gy + gh),
598 w - (gx), h - gy, w - (gx + gw), h - gy);
599 }
600 }
601 }
602
603 num = 0;
604 for (j = 0; j < st->slices_h; j++)
605 {
606 for (i = 0; i < st->slices_w; i++)
607 {
608 _slice_apply(st, st->slices[num], x, y, w, h, ox, oy, ow, oh);
609 _slice_apply(st, st->slices2[num], x, y, w, h, ox, oy, ow, oh);
610 _slice_light(st, st->slices[num], ox, oy, ow, oh);
611 _slice_light(st, st->slices2[num], ox, oy, ow, oh);
612 num++;
613 }
614 }
615
616 for (i = 0; i <= st->slices_w; i++)
617 {
618 num = i * st->slices_h;
619 for (j = 0; j <= st->slices_h; j++)
620 {
621 Slice *s[4];
622
623 s[0] = s[1] = s[2] = s[3] = NULL;
624 if ((i > 0) && (j > 0))
625 s[0] = st->slices[num - 1 - st->slices_h];
626 if ((i < st->slices_w) && (j > 0))
627 s[1] = st->slices[num - 1];
628 if ((i > 0) && (j < st->slices_h))
629 s[2] = st->slices[num - st->slices_h];
630 if ((i < st->slices_w) && (j < st->slices_h))
631 s[3] = st->slices[num];
632 if (st->dir == 0)
633 _slice_obj_vert_color_merge(s[0], 2, s[1], 3,
634 s[2], 1, s[3], 0);
635 else if (st->dir == 1)
636 _slice_obj_vert_color_merge(s[0], 3, s[1], 2,
637 s[2], 0, s[3], 1);
638 else if (st->dir == 2)
639 _slice_obj_vert_color_merge(s[0], 3, s[1], 2,
640 s[2], 0, s[3], 1);
641 else if (st->dir == 3)
642 _slice_obj_vert_color_merge(s[0], 2, s[1], 3,
643 s[2], 1, s[3], 0);
644 s[0] = s[1] = s[2] = s[3] = NULL;
645 if ((i > 0) && (j > 0))
646 s[0] = st->slices2[num - 1 - st->slices_h];
647 if ((i < st->slices_w) && (j > 0))
648 s[1] = st->slices2[num - 1];
649 if ((i > 0) && (j < st->slices_h))
650 s[2] = st->slices2[num - st->slices_h];
651 if ((i < st->slices_w) && (j < st->slices_h))
652 s[3] = st->slices2[num];
653 if (st->dir == 0)
654 _slice_obj_vert_color_merge(s[0], 3, s[1], 2,
655 s[2], 0, s[3], 1);
656 else if (st->dir == 1)
657 _slice_obj_vert_color_merge(s[0], 2, s[1], 3,
658 s[2], 1, s[3], 0);
659 else if (st->dir == 2)
660 _slice_obj_vert_color_merge(s[0], 2, s[1], 3,
661 s[2], 1, s[3], 0);
662 else if (st->dir == 3)
663 _slice_obj_vert_color_merge(s[0], 3, s[1], 2,
664 s[2], 0, s[3], 1);
665 num++;
666 }
667 }
668 num = 0;
669 for (i = 0; i < st->slices_w; i++)
670 {
671 for (j = 0; j < st->slices_h; j++)
672 {
673 _slice_3d(st, st->slices[num], ox, oy, ow, oh);
674 _slice_3d(st, st->slices2[num], ox, oy, ow, oh);
675 num++;
676 }
677 }
678
679 return 1;
680 }
681
682 static void
_state_end(State * st)683 _state_end(State *st)
684 {
685 _state_slices_clear(st);
686 }
687
688 static Eina_Bool
_state_anim(void * data,double pos)689 _state_anim(void *data, double pos)
690 {
691 State *st = data;
692 double p;
693
694 p = ecore_animator_pos_map(pos, ECORE_POS_MAP_ACCELERATE, 0.0, 0.0);
695 if (st->finish)
696 {
697 if (st->dir == 0)
698 st->x = st->ox * (1.0 - p);
699 else if (st->dir == 1)
700 st->x = st->ox + ((st->w - st->ox) * p);
701 else if (st->dir == 2)
702 st->y = st->oy * (1.0 - p);
703 else if (st->dir == 3)
704 st->y = st->oy + ((st->h - st->oy) * p);
705 }
706 else
707 {
708 if (st->dir == 0)
709 st->x = st->ox + ((st->w - st->ox) * p);
710 else if (st->dir == 1)
711 st->x = st->ox * (1.0 - p);
712 else if (st->dir == 2)
713 st->y = st->oy + ((st->h - st->oy) * p);
714 else if (st->dir == 3)
715 st->y = st->oy * (1.0 - p);
716 }
717 _state_update(st);
718 if (pos < 1.0) return EINA_TRUE;
719 evas_object_show(st->front);
720 evas_object_show(st->back);
721 _state_end(st);
722 st->anim = NULL;
723 return EINA_FALSE;
724 }
725
726 static void
_update_curl_job(void * data)727 _update_curl_job(void *data)
728 {
729 State *st = data;
730 st->job = NULL;
731 if (_state_update(st))
732 {
733 evas_object_hide(st->front);
734 evas_object_hide(st->back);
735 }
736 }
737
738 static void
im_down_cb(void * data,Evas * e EINA_UNUSED,Evas_Object * obj EINA_UNUSED,void * event_info)739 im_down_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info)
740 {
741 State *st = &state;
742 Evas_Event_Mouse_Down *ev = event_info;
743 Evas_Coord x, y, w, h;
744
745 if (ev->button != 1) return;
746 st->front = data;
747 st->back = evas_object_data_get(data, "im2");
748 st->backflip = 1;
749 st->down = 1;
750 evas_object_geometry_get(st->front, &x, &y, &w, &h);
751 st->x = ev->canvas.x - x;
752 st->y = ev->canvas.y - y;
753 st->w = w;
754 st->h = h;
755 st->down_x = st->x;
756 st->down_y = st->y;
757 st->dir = -1;
758 if (_state_update(st))
759 {
760 evas_object_hide(st->front);
761 evas_object_hide(st->back);
762 }
763 }
764
765 static void
im_up_cb(void * data EINA_UNUSED,Evas * e EINA_UNUSED,Evas_Object * obj EINA_UNUSED,void * event_info)766 im_up_cb(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info)
767 {
768 State *st = &state;
769 Evas_Event_Mouse_Up *ev = event_info;
770 Evas_Coord x, y, w, h;
771 double tm = 0.5;
772
773 if (ev->button != 1) return;
774 st->down = 0;
775 evas_object_geometry_get(st->front, &x, &y, &w, &h);
776 st->x = ev->canvas.x - x;
777 st->y = ev->canvas.y - y;
778 st->w = w;
779 st->h = h;
780 st->ox = st->x;
781 st->oy = st->y;
782 if (st->job)
783 {
784 ecore_job_del(st->job);
785 st->job = NULL;
786 }
787 if (st->anim) ecore_animator_del(st->anim);
788 st->finish = 0;
789 if (st->dir == 0)
790 {
791 tm = (double)st->x / (double)st->w;
792 if (st->x < (st->w / 2)) st->finish = 1;
793 }
794 else if (st->dir == 1)
795 {
796 if (st->x > (st->w / 2)) st->finish = 1;
797 tm = 1.0 - ((double)st->x / (double)st->w);
798 }
799 else if (st->dir == 2)
800 {
801 if (st->y < (st->h / 2)) st->finish = 1;
802 tm = (double)st->y / (double)st->h;
803 }
804 else if (st->dir == 3)
805 {
806 if (st->y > (st->h / 2)) st->finish = 1;
807 tm = 1.0 - ((double)st->y / (double)st->h);
808 }
809 if (tm < 0.01) tm = 0.01;
810 else if (tm > 0.99) tm = 0.99;
811 if (!st->finish) tm = 1.0 - tm;
812 tm *= 0.5;
813 st->anim = ecore_animator_timeline_add(tm, _state_anim, st);
814 _state_anim(st, 0.0);
815 }
816
817 static void
im_move_cb(void * data EINA_UNUSED,Evas * e EINA_UNUSED,Evas_Object * obj EINA_UNUSED,void * event_info)818 im_move_cb(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info)
819 {
820 State *st = &state;
821 Evas_Event_Mouse_Move *ev = event_info;
822 Evas_Coord x, y, w, h;
823
824 if (!st->down) return;
825 evas_object_geometry_get(st->front, &x, &y, &w, &h);
826 st->x = ev->cur.canvas.x - x;
827 st->y = ev->cur.canvas.y - y;
828 st->w = w;
829 st->h = h;
830 if (st->job) ecore_job_del(st->job);
831 st->job = ecore_job_add(_update_curl_job, st);
832 }
833
834 void
test_flip_page(void * data EINA_UNUSED,Evas_Object * obj EINA_UNUSED,void * event_info EINA_UNUSED)835 test_flip_page(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
836 {
837 Evas_Object *win, *im, *im2, *rc;
838 char buf[PATH_MAX];
839
840 win = elm_win_util_standard_add("flip-page", "Flip Page");
841 elm_win_focus_highlight_enabled_set(win, EINA_TRUE);
842 elm_win_autodel_set(win, EINA_TRUE);
843
844 im2 = evas_object_image_filled_add(evas_object_evas_get(win));
845 snprintf(buf, sizeof(buf), "%s/images/%s",
846 elm_app_data_dir_get(), "sky_04.jpg");
847 evas_object_image_file_set(im2, buf, NULL);
848 evas_object_move(im2, 40, 40);
849 evas_object_resize(im2, 400, 400);
850 evas_object_show(im2);
851
852 #if 0
853 im = elm_layout_add(win);
854 snprintf(buf, sizeof(buf), "%s/objects/test.edj", elm_app_data_dir_get());
855 elm_layout_file_set(im, buf, "layout");
856 #else
857 im = evas_object_image_filled_add(evas_object_evas_get(win));
858 snprintf(buf, sizeof(buf), "%s/images/%s",
859 elm_app_data_dir_get(), "twofish.jpg");
860 evas_object_image_file_set(im, buf, NULL);
861 #endif
862 evas_object_move(im, 40, 40);
863 evas_object_resize(im, 400, 400);
864 evas_object_show(im);
865
866 evas_object_data_set(im, "im2", im2);
867
868 rc = evas_object_rectangle_add(evas_object_evas_get(win));
869 evas_object_color_set(rc, 0, 0, 0, 0);
870 evas_object_move(rc, 40, 340);
871 evas_object_resize(rc, 400, 100);
872 evas_object_show(rc);
873
874 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_DOWN, im_down_cb, im);
875 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_UP, im_up_cb, im);
876 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_MOVE, im_move_cb, im);
877
878 rc = evas_object_rectangle_add(evas_object_evas_get(win));
879 evas_object_color_set(rc, 0, 0, 0, 0);
880 evas_object_move(rc, 40, 40);
881 evas_object_resize(rc, 400, 100);
882 evas_object_show(rc);
883
884 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_DOWN, im_down_cb, im);
885 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_UP, im_up_cb, im);
886 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_MOVE, im_move_cb, im);
887
888 rc = evas_object_rectangle_add(evas_object_evas_get(win));
889 evas_object_color_set(rc, 0, 0, 0, 0);
890 evas_object_move(rc, 340, 40);
891 evas_object_resize(rc, 100, 400);
892 evas_object_show(rc);
893
894 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_DOWN, im_down_cb, im);
895 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_UP, im_up_cb, im);
896 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_MOVE, im_move_cb, im);
897
898 rc = evas_object_rectangle_add(evas_object_evas_get(win));
899 evas_object_color_set(rc, 0, 0, 0, 0);
900 evas_object_move(rc, 40, 40);
901 evas_object_resize(rc, 100, 400);
902 evas_object_show(rc);
903
904 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_DOWN, im_down_cb, im);
905 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_UP, im_up_cb, im);
906 evas_object_event_callback_add(rc, EVAS_CALLBACK_MOUSE_MOVE, im_move_cb, im);
907
908 evas_object_resize(win, 480, 480);
909 evas_object_show(win);
910 }
911