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efl/legacy/elementary/src/examples/evas3d_object_on_button_exa...

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/*
* This example shows the mechanism of elementary widget adding (button) to the 3d scene object (cube) and
* illustrates the work of callback of event from mouse.
*
* Compile with:
* gcc -o button_on_3d_object_example button_on_3d_object_example.c -g `pkg-config --libs --cflags evas ecore eo elementary`
*/
#define EFL_EO_API_SUPPORT
#define EFL_BETA_API_SUPPORT
#include <Eo.h>
#include <Evas.h>
#include <Ecore.h>
#include <Elementary.h>
#define WIDTH 400
#define HEIGHT 400
typedef struct _Scene_Data
{
Eo *scene;
Eo *root_node;
Eo *camera_node;
Eo *light_node;
Eo *mesh_node;
Eo *camera;
Eo *light;
Eo *mesh;
Eo *material;
Eo *texture;
} Scene_Data;
Evas_Object *win = NULL;
static Evas *evas = NULL;
static Eo *image = NULL;
static Eo *btn = NULL;
static float d_angle = 0.5;
static const float cube_vertices[] =
{
/* Front */
-1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0, 1.0,
1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 1.0,
-1.0, -1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0,
1.0, -1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0,
/* Back */
1.0, 1.0, -1.0, 0.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0,
-1.0, 1.0, -1.0, 0.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0,
1.0, -1.0, -1.0, 0.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0,
-1.0, -1.0, -1.0, 0.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 0.0,
/* Left */
-1.0, 1.0, -1.0, -1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0,
-1.0, 1.0, 1.0, -1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0,
-1.0, -1.0, -1.0, -1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0, 0.0, 0.0,
-1.0, -1.0, 1.0, -1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0,
/* Right */
1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 0.0, 1.0,
1.0, 1.0, -1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0, 1.0,
1.0, -1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 0.0, 0.0,
1.0, -1.0, -1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0, 0.0,
/* Top */
-1.0, 1.0, -1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0,
1.0, 1.0, -1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0,
-1.0, 1.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 0.0,
1.0, 1.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 0.0,
/* Bottom */
1.0, -1.0, -1.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0,
-1.0, -1.0, -1.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 1.0,
1.0, -1.0, 1.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 0.0, 0.0,
-1.0, -1.0, 1.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0,
};
static const unsigned short cube_indices[] =
{
/* Front */
0, 1, 2, 2, 1, 3,
/* Back */
4, 5, 6, 6, 5, 7,
/* Left */
8, 9, 10, 10, 9, 11,
/* Right */
12, 13, 14, 14, 13, 15,
/* Top */
16, 17, 18, 18, 17, 19,
/* Bottom */
20, 21, 22, 22, 21, 23
};
static void
_stop_scene(void *data,
Evas *e EINA_UNUSED,
Evas_Object *eo EINA_UNUSED,
void *event_info)
{
Evas_Event_Mouse_Down *ev = event_info;
Evas_Canvas3D_Node *n;
Evas_Canvas3D_Mesh *m;
Evas_Real s, t;
Scene_Data *d = (Scene_Data *)data;
if (ev->button == 1)
{
Eina_Bool ret;
if (eo_do_ret(d->scene, ret,
evas_canvas3d_scene_pick(ev->canvas.x, ev->canvas.y, &n, &m, &s, &t)))
{
d_angle = 0.0;
elm_object_signal_emit(btn, "mouse,down,1", "event");
eo_do(d->mesh_node, evas_canvas3d_node_position_set(0.0, 0.0, -0.2));
}
}
}
static void
_play_scene(void *data,
Evas *e EINA_UNUSED,
Evas_Object *eo EINA_UNUSED,
void *event_info EINA_UNUSED)
{
Scene_Data *d = (Scene_Data *)data;
d_angle = 0.5;
elm_object_signal_emit(btn, "mouse,up,1", "event");
eo_do(d->mesh_node, evas_canvas3d_node_position_set(0.0, 0.0, 0.0));
}
static Eina_Bool
_animate_scene(void *data)
{
static float angle = 0.0f;
Scene_Data *scene = (Scene_Data *)data;
angle += d_angle;
eo_do(scene->mesh_node,
evas_canvas3d_node_orientation_angle_axis_set(angle, 1.0, 1.0, 1.0));
/* Rotate */
if (angle > 360.0) angle -= 360.0f;
return EINA_TRUE;
}
static void
_camera_setup(Scene_Data *data)
{
data->camera = eo_add(EVAS_CANVAS3D_CAMERA_CLASS, evas);
eo_do(data->camera,
evas_canvas3d_camera_projection_perspective_set(20.0, 1.0, 2.0, 50.0));
data->camera_node =
eo_add(EVAS_CANVAS3D_NODE_CLASS, evas,
evas_canvas3d_node_constructor(EVAS_CANVAS3D_NODE_TYPE_CAMERA));
eo_do(data->camera_node,
evas_canvas3d_node_camera_set(data->camera),
evas_canvas3d_node_position_set(0.0, 0.0, 15.0),
evas_canvas3d_node_look_at_set(EVAS_CANVAS3D_SPACE_PARENT, 0.0, 0.0, 0.0,
EVAS_CANVAS3D_SPACE_PARENT, 0.0, -1.0, 0.0));
eo_do(data->root_node, evas_canvas3d_node_member_add(data->camera_node));
}
static void
_light_setup(Scene_Data *data)
{
data->light = eo_add(EVAS_CANVAS3D_LIGHT_CLASS, evas);
eo_do(data->light,
evas_canvas3d_light_ambient_set(0.2, 0.2, 0.2, 1.0),
evas_canvas3d_light_diffuse_set(1.0, 1.0, 1.0, 1.0),
evas_canvas3d_light_specular_set(1.0, 1.0, 1.0, 1.0));
data->light_node =
eo_add(EVAS_CANVAS3D_NODE_CLASS, evas,
evas_canvas3d_node_constructor(EVAS_CANVAS3D_NODE_TYPE_LIGHT));
eo_do(data->light_node,
evas_canvas3d_node_light_set(data->light),
evas_canvas3d_node_position_set(0.0, 0.0, 10.0),
evas_canvas3d_node_look_at_set(EVAS_CANVAS3D_SPACE_PARENT, 0.0, 0.0, 0.0,
EVAS_CANVAS3D_SPACE_PARENT, 0.0, 1.0, 0.0));
eo_do(data->root_node, evas_canvas3d_node_member_add(data->light_node));
}
static void
_mesh_setup(Scene_Data *data)
{
/* Setup material and texture as widget button. */
data->material = eo_add(EVAS_CANVAS3D_MATERIAL_CLASS, evas);
data->texture = eo_add(EVAS_CANVAS3D_TEXTURE_CLASS, evas);
eo_do(data->texture,
evas_canvas3d_texture_source_set(btn),
evas_canvas3d_texture_source_visible_set(EINA_FALSE));
eo_do(data->material,
evas_canvas3d_material_texture_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, data->texture),
evas_canvas3d_material_enable_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_AMBIENT, EINA_TRUE),
evas_canvas3d_material_enable_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, EINA_TRUE),
evas_canvas3d_material_enable_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_SPECULAR, EINA_TRUE),
evas_canvas3d_material_color_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_AMBIENT, 0.2, 0.2, 0.2, 1.0),
evas_canvas3d_material_color_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_DIFFUSE, 0.8, 0.8, 0.8, 1.0),
evas_canvas3d_material_color_set(EVAS_CANVAS3D_MATERIAL_ATTRIB_SPECULAR, 1.0, 1.0, 1.0, 1.0),
evas_canvas3d_material_shininess_set(100.0));
/* Setup mesh. */
data->mesh = eo_add(EVAS_CANVAS3D_MESH_CLASS, evas);
eo_do(data->mesh,
evas_canvas3d_mesh_vertex_count_set(24),
evas_canvas3d_mesh_frame_add(0),
evas_canvas3d_mesh_frame_vertex_data_set(0, EVAS_CANVAS3D_VERTEX_ATTRIB_POSITION,
12 * sizeof(float), &cube_vertices[ 0]),
evas_canvas3d_mesh_frame_vertex_data_set(0, EVAS_CANVAS3D_VERTEX_ATTRIB_NORMAL,
12 * sizeof(float), &cube_vertices[ 3]),
evas_canvas3d_mesh_frame_vertex_data_set(0, EVAS_CANVAS3D_VERTEX_ATTRIB_COLOR,
12 * sizeof(float), &cube_vertices[ 6]),
evas_canvas3d_mesh_frame_vertex_data_set(0, EVAS_CANVAS3D_VERTEX_ATTRIB_TEXCOORD,
12 * sizeof(float), &cube_vertices[10]),
evas_canvas3d_mesh_index_data_set(EVAS_CANVAS3D_INDEX_FORMAT_UNSIGNED_SHORT,
36, &cube_indices[0]),
evas_canvas3d_mesh_vertex_assembly_set(EVAS_CANVAS3D_VERTEX_ASSEMBLY_TRIANGLES),
evas_canvas3d_mesh_shade_mode_set(EVAS_CANVAS3D_SHADE_MODE_PHONG),
evas_canvas3d_mesh_frame_material_set(0, data->material));
data->mesh_node =
eo_add(EVAS_CANVAS3D_NODE_CLASS, evas,
evas_canvas3d_node_constructor(EVAS_CANVAS3D_NODE_TYPE_MESH));
eo_do(data->root_node, evas_canvas3d_node_member_add(data->mesh_node));
eo_do(data->mesh_node, evas_canvas3d_node_mesh_add(data->mesh));
}
static void
_scene_setup(Scene_Data *data)
{
data->scene = eo_add(EVAS_CANVAS3D_SCENE_CLASS, evas);
eo_do(data->scene,
evas_canvas3d_scene_size_set(WIDTH, HEIGHT);
evas_canvas3d_scene_background_color_set(0.0, 0.0, 0.0, 0.0));
data->root_node =
eo_add(EVAS_CANVAS3D_NODE_CLASS, evas,
evas_canvas3d_node_constructor(EVAS_CANVAS3D_NODE_TYPE_NODE));
_camera_setup(data);
_light_setup(data);
_mesh_setup(data);
eo_do(data->scene,
evas_canvas3d_scene_root_node_set(data->root_node),
evas_canvas3d_scene_camera_node_set(data->camera_node));
}
static void
_mirror(Evas_Object *img)
{
int x, y, w, h;
Evas_Map *m_rotate;
evas_object_geometry_get(img, &x, &y, &w, &h);
m_rotate = evas_map_new(4);
evas_map_util_points_populate_from_object(m_rotate, img);
evas_map_util_rotate(m_rotate, 180, x + (w / 2), y + (h / 2));
evas_map_point_image_uv_set(m_rotate, 0, 0, h);
evas_map_point_image_uv_set(m_rotate, 1, w, h);
evas_map_point_image_uv_set(m_rotate, 2, w, h / 10);
evas_map_point_image_uv_set(m_rotate, 3, 0, h / 10);
evas_object_map_set(img, m_rotate);
evas_object_map_enable_set(img, EINA_TRUE);
evas_map_free(m_rotate);
}
int
elm_main(int argc, char **argv)
{
Scene_Data data;
elm_config_accel_preference_set("3d");
elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
win = elm_win_util_standard_add("evas3d-object-button", "A button on the 3d object");
elm_win_autodel_set(win, EINA_TRUE);
evas = evas_object_evas_get(win);
/* Add an image object for 3D scene rendering. */
image = evas_object_image_filled_add(evas);
eo_do(image,
efl_gfx_size_set(WIDTH, HEIGHT),
efl_gfx_visible_set(EINA_TRUE));
btn = elm_button_add(win);
evas_object_resize(btn, (WIDTH * 2) / 3, (HEIGHT * 2) / 3);
elm_object_text_set(btn, "3D Button");
elm_object_scale_set(btn, 3.0);
evas_object_show(btn);
/*Due to inverted image in case proxy object*/
_mirror(image);
/* Set the image object as render target for 3D scene. */
_scene_setup(&data);
eo_do(image, evas_obj_image_scene_set(data.scene));
evas_object_event_callback_add(image, EVAS_CALLBACK_MOUSE_DOWN, _stop_scene, &data);
evas_object_event_callback_add(image, EVAS_CALLBACK_MOUSE_UP, _play_scene, &data);
/* Add animation timer callback. */
ecore_timer_add(0.016, _animate_scene, &data);
evas_object_resize(win, WIDTH, HEIGHT);
evas_object_show(win);
/* Enter main loop. */
elm_run();
return 0;
}
ELM_MAIN()
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