2011-05-19 06:03:48 -07:00
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#include <Elementary.h>
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#ifdef HAVE_CONFIG_H
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# include "elementary_config.h"
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#endif
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#ifndef ELM_LIB_QUICKLAUNCH
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2011-05-20 18:38:02 -07:00
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//#define PAGEMESH 1
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2011-05-19 06:03:48 -07:00
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typedef struct _State State;
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typedef struct _Slice Slice;
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2011-05-20 18:38:02 -07:00
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typedef struct _Vertex2 Vertex2;
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typedef struct _Vertex3 Vertex3;
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2011-05-19 06:03:48 -07:00
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struct _State
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{
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2011-05-20 18:38:02 -07:00
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Evas_Object *orig, *win;
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2011-05-19 06:03:48 -07:00
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Evas_Coord down_x, down_y;
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Eina_Bool down : 1;
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Evas_Coord x, y;
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2011-05-20 18:38:02 -07:00
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Slice *base;
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2011-05-19 06:03:48 -07:00
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Eina_List *slices;
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};
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struct _Slice
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{
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Evas_Object *obj;
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2011-05-20 18:38:02 -07:00
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// (0)---(1)
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// | |
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// | |
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// (3)---(2)
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double u[4], v[4];
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double x[4], y[4], z[4];
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};
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struct _Vertex2
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{
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double x, y;
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};
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struct _Vertex3
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{
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double x, y, z;
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2011-05-19 06:03:48 -07:00
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};
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static State state =
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{
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NULL, NULL,
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2011-05-19 06:03:48 -07:00
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0, 0,
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0,
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0, 0,
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NULL,
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2011-05-20 18:38:02 -07:00
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NULL
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2011-05-19 06:03:48 -07:00
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};
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2011-05-20 18:38:02 -07:00
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#define RES 32
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static Slice *
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_slice_new(State *st)
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{
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Slice *sl;
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sl = calloc(1, sizeof(Slice));
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if (!sl) return NULL;
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sl->obj = evas_object_image_add(evas_object_evas_get(st->win));
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evas_object_image_smooth_scale_set(sl->obj, 0);
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evas_object_pass_events_set(sl->obj, 1);
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evas_object_image_source_set(sl->obj, st->orig);
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evas_object_show(sl->obj);
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return sl;
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}
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static void
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_slice_free(Slice *sl)
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{
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evas_object_del(sl->obj);
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free(sl);
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}
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static void
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_slice_apply(Slice *sl, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h)
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{
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Evas_Map *m;
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int i;
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m = evas_map_new(4);
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evas_map_smooth_set(m, 0);
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for (i = 0; i < 4; i++)
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{
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evas_map_point_coord_set(m, i, x + sl->x[i], y + sl->y[i], sl->z[i]);
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evas_map_point_image_uv_set(m, i, sl->u[i] , sl->v[i]);
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evas_map_point_color_set(m, i, 255, 255, 255, 255);
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}
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evas_map_util_3d_perspective(m, x + (w / 2), y + (h / 2), 0, 512);
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/*
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// FIXME: lighting should be manual with pt 0 and 3 being white and
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// 2 and 3 matching the
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evas_map_util_3d_lighting(m,
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0 , 0 , -1000,
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255, 255, 255,
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20 , 20 , 20);
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*/
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evas_object_map_enable_set(sl->obj, EINA_TRUE);
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evas_object_image_fill_set(sl->obj, 0, 0, w, h);
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evas_object_map_set(sl->obj, m);
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evas_map_free(m);
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}
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static void
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_slice_xyz(Slice *sl,
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double x1, double y1, double z1,
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double x2, double y2, double z2,
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double x3, double y3, double z3,
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double x4, double y4, double z4)
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{
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sl->x[0] = x1; sl->y[0] = y1; sl->z[0] = z1;
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sl->x[1] = x2; sl->y[1] = y2; sl->z[1] = z2;
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sl->x[2] = x3; sl->y[2] = y3; sl->z[2] = z3;
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sl->x[3] = x4; sl->y[3] = y4; sl->z[3] = z4;
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}
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static void
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_slice_uv(Slice *sl,
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double u1, double v1,
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double u2, double v2,
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double u3, double v3,
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double u4, double v4)
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{
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sl->u[0] = u1; sl->v[0] = v1;
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sl->u[1] = u2; sl->v[1] = v2;
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sl->u[2] = u3; sl->v[2] = v3;
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sl->u[3] = u4; sl->v[3] = v4;
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}
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#ifdef PAGEMESH
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static Evas_Object *sl_rho, *sl_theta, *sl_A;
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static void
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_deform_point(Vertex2 *vi, Vertex3 *vo, double rho, double theta, double A)
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{
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// ^Y
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// |
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// | X
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// +---->
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// theta == cone angle (0 -> PI/2)
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// A == distance of cone apex from origin
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// rho == angle of cone from vertical axis (...-PI/2 to PI/2...)
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Vertex3 v1; // First stage of the deformation
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double R, r, beta;
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// Radius of the circle circumscribed by vertex (vi->x, vi->y) around A
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// on the x-y plane
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R = sqrt(vi->x * vi->x + pow(vi->y - A, 2));
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// Now get the radius of the cone cross section intersected by our vertex
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// in 3D space.
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r = R * sin(theta);
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// Angle subtended by arc |ST| on the cone cross section.
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beta = asin(vi->x / R) / sin(theta);
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// *** MAGIC!!! ***
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v1.x = r * sin(beta);
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v1.y = R + A - r * (1 - cos(beta)) * sin(theta);
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v1.z = r * (1 - cos(beta)) * cos(theta);
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// Apply a basic rotation transform around the y axis to rotate the curled
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// page. These two steps could be combined through simple substitution,
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// but are left separate to keep the math simple for debugging and
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// illustrative purposes.
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vo->x = (v1.x * cos(rho)) - (v1.z * sin(rho));
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vo->y = v1.y;
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vo->z = (v1.x * sin(rho)) + (v1.z * cos(rho));
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}
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static void
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_test(void)
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{
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static Eina_List *pts = NULL;
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Evas_Object *o;
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Evas_Map *m;
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int i, j, k;
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Evas_Coord x, y, w, h;
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State *st = &state;
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EINA_LIST_FREE(pts, o) evas_object_del(o);
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evas_object_geometry_get(st->orig, &x, &y, &w, &h);
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for (j = 0; j < h; j += 20)
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{
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for (i = 0; i < w; i += 20)
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{
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Vertex2 vi;
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Vertex3 vo;
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double rho, theta, A, n;
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vi.x = i;
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vi.y = j;
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rho = elm_slider_value_get(sl_rho);
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A = elm_slider_value_get(sl_A);
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theta = elm_slider_value_get(sl_theta);
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_deform_point(&vi, &vo, rho, theta, A);
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o = evas_object_image_add(evas_object_evas_get(st->win));
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evas_object_image_smooth_scale_set(o, 0);
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evas_object_pass_events_set(o, 1);
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evas_object_image_source_set(o, st->orig);
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evas_object_show(o);
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m = evas_map_new(4);
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evas_map_smooth_set(m, 0);
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k = 0;
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evas_map_point_coord_set(m, k, x + vo.x, y + vo.y, -vo.z);
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evas_map_point_image_uv_set(m, k, 0 , 0);
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evas_map_point_color_set(m, k, 255, 255, 255, 255);
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k++;
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evas_map_point_coord_set(m, k, x + vo.x + 10, y + vo.y, -vo.z);
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evas_map_point_image_uv_set(m, k, w , 0);
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evas_map_point_color_set(m, k, 255, 255, 255, 255);
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k++;
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evas_map_point_coord_set(m, k, x + vo.x + 10, y + vo.y + 10, -vo.z);
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evas_map_point_image_uv_set(m, k, w , h);
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evas_map_point_color_set(m, k, 255, 255, 255, 255);
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k++;
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evas_map_point_coord_set(m, k, x + vo.x, y + vo.y + 10, -vo.z);
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evas_map_point_image_uv_set(m, k, 0 , h);
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evas_map_point_color_set(m, k, 255, 255, 255, 255);
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k++;
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evas_map_util_3d_perspective(m, x + (w / 2), y + (h / 2), 0, 512);
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evas_object_map_enable_set(o, EINA_TRUE);
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evas_object_image_fill_set(o, 0, 0, w, h);
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evas_object_map_set(o, m);
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evas_map_free(m);
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pts = eina_list_append(pts, o);
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}
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}
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}
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static void
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_sl_ch(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
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{
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_test();
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}
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#endif
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2011-05-19 06:03:48 -07:00
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static void
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_slice_update(State *st)
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{
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Evas_Coord x1, y1, x2, y2, mx, my, px, rx, ry, prx, pry, dst, dx, dy, pdst;
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Evas_Coord x, y, w, h;
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int i;
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Slice *sl;
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int rad;
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2011-05-19 17:43:05 -07:00
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2011-05-19 06:03:48 -07:00
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evas_object_geometry_get(st->orig, &x, &y, &w, &h);
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x1 = st->down_x;
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y1 = st->down_y;
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x2 = st->x;
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y2 = st->y;
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mx = (x1 + x2) / 2;
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my = (y1 + y2) / 2;
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2011-05-19 17:43:05 -07:00
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2011-05-19 06:03:48 -07:00
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if (mx < 0) mx = 0;
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else if (mx >= w) mx = w - 1;
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if (my < 0) my = 0;
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else if (my >= h) my = h - 1;
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2011-05-19 17:43:05 -07:00
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if (!st->base) st->base = _slice_new(st);
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sl = st->base;
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_slice_xyz(sl,
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0, 0, 0,
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mx, 0, 0,
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mx, h, 0,
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0, h, 0);
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_slice_uv(sl,
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0, 0,
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mx, 0,
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mx, h,
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0, h);
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_slice_apply(sl, x, y, w, h);
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EINA_LIST_FREE(st->slices, sl) _slice_free(sl);
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2011-05-19 17:43:05 -07:00
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2011-05-19 06:03:48 -07:00
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// cylinder radius is width / 8
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rad = (w - mx) / 4;
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if (rad < (w / 16)) rad = (w / 16);
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if (rad > (w / 8)) rad = w / 8;
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2011-05-19 17:43:05 -07:00
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rad = w / 10;
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2011-05-19 06:03:48 -07:00
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px = mx;
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prx = 0;
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pry = rad;
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for (i = 1; i < RES; i++)
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{
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rx = (double)rad * sin((i * M_PI) / RES);
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ry = (double)rad * cos((i * M_PI) / RES);
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dx = rx - prx;
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dy = ry - pry;
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dst = sqrt((dx * dx) + (dy * dy));
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if ((px + dst) > w)
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{
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pdst = dst;
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dst = w - px;
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rx = prx + (((rx - prx) * dst) / pdst);
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ry = pry + (((ry - pry) * dst) / pdst);
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}
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if (dst <= 0) break;
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sl = _slice_new(st);
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_slice_xyz(sl,
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mx + prx, 0, -(rad - pry),
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mx + rx, 0, -(rad - ry),
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mx + rx, h, -(rad - ry),
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mx + prx, h, -(rad - pry));
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_slice_uv(sl,
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px, 0,
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px + dst, 0,
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px + dst, h,
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px, h);
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_slice_apply(sl, x, y, w, h);
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st->slices = eina_list_append(st->slices, sl);
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prx = rx;
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pry = ry;
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px += dst;
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}
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if (px < w)
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{
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sl = _slice_new(st);
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_slice_xyz(sl,
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mx + prx, 0, -(rad - pry),
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mx + (px - w), 0, -(rad * 2),
|
|
|
|
mx + (px - w), h, -(rad * 2),
|
|
|
|
mx + prx, h, -(rad - pry));
|
|
|
|
_slice_uv(sl,
|
|
|
|
px, 0,
|
|
|
|
w, 0,
|
|
|
|
w, h,
|
|
|
|
px, h);
|
|
|
|
_slice_apply(sl, x, y, w, h);
|
2011-05-19 06:03:48 -07:00
|
|
|
st->slices = eina_list_append(st->slices, sl);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
_slice_end(State *st)
|
|
|
|
{
|
|
|
|
Slice *sl;
|
2011-05-20 18:38:02 -07:00
|
|
|
|
|
|
|
if (st->base) _slice_free(st->base);
|
|
|
|
st->base = NULL;
|
|
|
|
EINA_LIST_FREE(st->slices, sl) _slice_free(sl);
|
2011-05-19 06:03:48 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
im_down_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info)
|
|
|
|
{
|
|
|
|
Evas_Event_Mouse_Down *ev = event_info;
|
|
|
|
Evas_Object *win = data;
|
|
|
|
Evas_Coord x, y;
|
|
|
|
|
|
|
|
if (ev->button != 1) return;
|
|
|
|
evas_object_geometry_get(obj, &x, &y, NULL, NULL);
|
|
|
|
state.orig = obj;
|
|
|
|
state.win = win;
|
|
|
|
state.down = 1;
|
|
|
|
state.x = ev->canvas.x - x;
|
|
|
|
state.y = ev->canvas.y - y;
|
|
|
|
state.down_x = state.x;
|
|
|
|
state.down_y = state.y;
|
|
|
|
evas_object_lower(obj);
|
|
|
|
printf("v %i %i\n", state.x, state.y);
|
|
|
|
_slice_update(&state);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2011-05-19 17:46:09 -07:00
|
|
|
im_up_cb(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *event_info)
|
2011-05-19 06:03:48 -07:00
|
|
|
{
|
|
|
|
Evas_Event_Mouse_Up *ev = event_info;
|
|
|
|
Evas_Coord x, y;
|
2011-05-19 17:43:05 -07:00
|
|
|
|
2011-05-19 06:03:48 -07:00
|
|
|
if (ev->button != 1) return;
|
|
|
|
evas_object_geometry_get(obj, &x, &y, NULL, NULL);
|
|
|
|
state.down = 0;
|
|
|
|
state.x = ev->canvas.x - x;
|
|
|
|
state.y = ev->canvas.y - y;
|
|
|
|
evas_object_raise(obj);
|
|
|
|
printf("^ %i %i\n", state.x, state.y);
|
|
|
|
_slice_end(&state);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2011-05-19 17:46:09 -07:00
|
|
|
im_move_cb(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *event_info)
|
2011-05-19 06:03:48 -07:00
|
|
|
{
|
|
|
|
Evas_Event_Mouse_Move *ev = event_info;
|
|
|
|
Evas_Coord x, y;
|
2011-05-19 17:43:05 -07:00
|
|
|
|
2011-05-19 06:03:48 -07:00
|
|
|
if (!state.down) return;
|
|
|
|
evas_object_geometry_get(obj, &x, &y, NULL, NULL);
|
|
|
|
state.x = ev->cur.canvas.x - x;
|
|
|
|
state.y = ev->cur.canvas.y - y;
|
|
|
|
printf("@ %i %i\n", state.x, state.y);
|
|
|
|
_slice_update(&state);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
test_flip_page(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
|
|
|
|
{
|
|
|
|
Evas_Object *win, *bg, *im;
|
|
|
|
char buf[PATH_MAX];
|
|
|
|
|
|
|
|
win = elm_win_add(NULL, "flip_page", ELM_WIN_BASIC);
|
|
|
|
elm_win_title_set(win, "Flip Page");
|
|
|
|
elm_win_focus_highlight_enabled_set(win, EINA_TRUE);
|
|
|
|
elm_win_autodel_set(win, 1);
|
|
|
|
|
|
|
|
bg = elm_bg_add(win);
|
|
|
|
elm_win_resize_object_add(win, bg);
|
|
|
|
evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
|
|
|
|
evas_object_show(bg);
|
|
|
|
|
2011-05-20 18:38:02 -07:00
|
|
|
#if 0
|
2011-05-19 06:03:48 -07:00
|
|
|
im = elm_layout_add(win);
|
|
|
|
snprintf(buf, sizeof(buf), "%s/objects/test.edj", PACKAGE_DATA_DIR);
|
|
|
|
elm_layout_file_set(im, buf, "layout");
|
2011-05-19 17:43:05 -07:00
|
|
|
#else
|
2011-05-19 06:03:48 -07:00
|
|
|
im = evas_object_image_filled_add(evas_object_evas_get(win));
|
|
|
|
snprintf(buf, sizeof(buf), "%s/images/%s",
|
|
|
|
PACKAGE_DATA_DIR, "twofish.jpg");
|
|
|
|
evas_object_image_file_set(im, buf, NULL);
|
2011-05-19 17:43:05 -07:00
|
|
|
#endif
|
2011-05-19 06:03:48 -07:00
|
|
|
evas_object_move(im, 40, 40);
|
|
|
|
evas_object_resize(im, 400, 400);
|
|
|
|
evas_object_show(im);
|
|
|
|
|
|
|
|
evas_object_event_callback_add(im, EVAS_CALLBACK_MOUSE_DOWN, im_down_cb, win);
|
|
|
|
evas_object_event_callback_add(im, EVAS_CALLBACK_MOUSE_UP, im_up_cb, win);
|
|
|
|
evas_object_event_callback_add(im, EVAS_CALLBACK_MOUSE_MOVE, im_move_cb, win);
|
2011-05-19 17:43:05 -07:00
|
|
|
|
2011-05-19 06:03:48 -07:00
|
|
|
evas_object_resize(win, 480, 480);
|
|
|
|
evas_object_show(win);
|
2011-05-20 18:38:02 -07:00
|
|
|
|
|
|
|
#ifdef PAGEMESH
|
|
|
|
Evas_Object *sl;
|
|
|
|
|
|
|
|
sl = elm_slider_add(win);
|
|
|
|
elm_slider_min_max_set(sl, -5, 5);
|
|
|
|
elm_slider_value_set(sl, 0);
|
|
|
|
sl_rho = sl;
|
|
|
|
evas_object_smart_callback_add(sl, "changed", _sl_ch, NULL);
|
|
|
|
elm_slider_label_set(sl, "rho");
|
|
|
|
elm_slider_unit_format_set(sl, "%1.2f");
|
|
|
|
elm_slider_span_size_set(sl, 320);
|
|
|
|
evas_object_move(sl, 10, 20);
|
|
|
|
evas_object_resize(sl, 460, 40);
|
|
|
|
evas_object_layer_set(sl, 100);
|
|
|
|
evas_object_show(sl);
|
|
|
|
|
|
|
|
sl = elm_slider_add(win);
|
|
|
|
elm_slider_min_max_set(sl, 0, 10);
|
|
|
|
elm_slider_value_set(sl, 7.86);
|
|
|
|
sl_theta = sl;
|
|
|
|
evas_object_smart_callback_add(sl, "changed", _sl_ch, NULL);
|
|
|
|
elm_slider_label_set(sl, "theta");
|
|
|
|
elm_slider_unit_format_set(sl, "%1.2f");
|
|
|
|
elm_slider_span_size_set(sl, 320);
|
|
|
|
evas_object_move(sl, 10, 60);
|
|
|
|
evas_object_resize(sl, 460, 40);
|
|
|
|
evas_object_layer_set(sl, 100);
|
|
|
|
evas_object_show(sl);
|
|
|
|
|
|
|
|
sl = elm_slider_add(win);
|
|
|
|
elm_slider_min_max_set(sl, -800, 800);
|
|
|
|
elm_slider_value_set(sl, -400);
|
|
|
|
sl_A = sl;
|
|
|
|
evas_object_smart_callback_add(sl, "changed", _sl_ch, NULL);
|
|
|
|
elm_slider_label_set(sl, "A");
|
|
|
|
elm_slider_unit_format_set(sl, "%1.2f");
|
|
|
|
elm_slider_span_size_set(sl, 320);
|
|
|
|
evas_object_move(sl, 10, 100);
|
|
|
|
evas_object_resize(sl, 460, 40);
|
|
|
|
evas_object_layer_set(sl, 100);
|
|
|
|
evas_object_show(sl);
|
|
|
|
#endif
|
2011-05-19 06:03:48 -07:00
|
|
|
}
|
|
|
|
#endif
|