From 81dc840d031ef3e298de3dedd60500843d69ca46 Mon Sep 17 00:00:00 2001 From: "se.osadchy" Date: Wed, 4 Jun 2014 19:19:25 +0200 Subject: [PATCH] example: add new example for button and Evas_3D object. Summary: This example shows the mechanism of elementary widget (button) adding to the 3d scene object. Reviewers: Hermet, cedric, raster Differential Revision: https://phab.enlightenment.org/D937 Signed-off-by: Cedric BAIL --- legacy/elementary/src/examples/Makefile.am | 2 + .../examples/button_on_3d_object_example.c | 339 ++++++++++++++++++ 2 files changed, 341 insertions(+) create mode 100644 legacy/elementary/src/examples/button_on_3d_object_example.c diff --git a/legacy/elementary/src/examples/Makefile.am b/legacy/elementary/src/examples/Makefile.am index 8998cf0f9d..512fa120ad 100644 --- a/legacy/elementary/src/examples/Makefile.am +++ b/legacy/elementary/src/examples/Makefile.am @@ -140,6 +140,7 @@ web_example_01.c \ web_example_02.c \ win_example.c \ 3d_scene_on_button_example.c \ +button_on_3d_object_example.c \ track_example_01.c .edc.edj: @@ -280,6 +281,7 @@ web_example_01 \ web_example_02 \ win_example \ 3d_scene_on_button_example \ +button_on_3d_object_example \ track_example_01 if ELEMENTARY_WINDOWS_BUILD diff --git a/legacy/elementary/src/examples/button_on_3d_object_example.c b/legacy/elementary/src/examples/button_on_3d_object_example.c new file mode 100644 index 0000000000..53a33f265f --- /dev/null +++ b/legacy/elementary/src/examples/button_on_3d_object_example.c @@ -0,0 +1,339 @@ +/* + * 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 +#include +#include +#include + +#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_3D_Node *n; + Evas_3D_Mesh *m; + Evas_Real s, t; + Scene_Data *d = (Scene_Data *)data; + + if (ev->button == 1) + { + if (eo_do(d->scene, + evas_3d_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_3d_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_3d_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_3d_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_3D_CAMERA_CLASS, evas); + + eo_do(data->camera, + evas_3d_camera_projection_perspective_set(20.0, 1.0, 2.0, 50.0)); + + data->camera_node = + eo_add_custom(EVAS_3D_NODE_CLASS, evas, + evas_3d_node_constructor(EVAS_3D_NODE_TYPE_CAMERA)); + eo_do(data->camera_node, + evas_3d_node_camera_set(data->camera), + evas_3d_node_position_set(0.0, 0.0, 15.0), + evas_3d_node_look_at_set(EVAS_3D_SPACE_PARENT, 0.0, 0.0, 0.0, + EVAS_3D_SPACE_PARENT, 0.0, -1.0, 0.0)); + eo_do(data->root_node, evas_3d_node_member_add(data->camera_node)); +} + +static void +_light_setup(Scene_Data *data) +{ + data->light = eo_add(EVAS_3D_LIGHT_CLASS, evas); + eo_do(data->light, + evas_3d_light_ambient_set(0.2, 0.2, 0.2, 1.0), + evas_3d_light_diffuse_set(1.0, 1.0, 1.0, 1.0), + evas_3d_light_specular_set(1.0, 1.0, 1.0, 1.0)); + + data->light_node = + eo_add_custom(EVAS_3D_NODE_CLASS, evas, + evas_3d_node_constructor(EVAS_3D_NODE_TYPE_LIGHT)); + eo_do(data->light_node, + evas_3d_node_light_set(data->light), + evas_3d_node_position_set(0.0, 0.0, 10.0), + evas_3d_node_look_at_set(EVAS_3D_SPACE_PARENT, 0.0, 0.0, 0.0, + EVAS_3D_SPACE_PARENT, 0.0, 1.0, 0.0)); + eo_do(data->root_node, evas_3d_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_3D_MATERIAL_CLASS, evas); + data->texture = eo_add(EVAS_3D_TEXTURE_CLASS, evas); + + eo_do(data->texture, + evas_3d_texture_source_set(btn), + evas_3d_texture_source_visible_set(EINA_FALSE)); + + eo_do(data->material, + evas_3d_material_texture_set(EVAS_3D_MATERIAL_DIFFUSE, data->texture), + + evas_3d_material_enable_set(EVAS_3D_MATERIAL_AMBIENT, EINA_TRUE), + evas_3d_material_enable_set(EVAS_3D_MATERIAL_DIFFUSE, EINA_TRUE), + evas_3d_material_enable_set(EVAS_3D_MATERIAL_SPECULAR, EINA_TRUE), + + evas_3d_material_color_set(EVAS_3D_MATERIAL_AMBIENT, 0.2, 0.2, 0.2, 1.0), + evas_3d_material_color_set(EVAS_3D_MATERIAL_DIFFUSE, 0.8, 0.8, 0.8, 1.0), + evas_3d_material_color_set(EVAS_3D_MATERIAL_SPECULAR, 1.0, 1.0, 1.0, 1.0), + evas_3d_material_shininess_set(100.0)); + + /* Setup mesh. */ + data->mesh = eo_add(EVAS_3D_MESH_CLASS, evas); + eo_do(data->mesh, + evas_3d_mesh_vertex_count_set(24), + evas_3d_mesh_frame_add(0), + + evas_3d_mesh_frame_vertex_data_set(0, EVAS_3D_VERTEX_POSITION, + 12 * sizeof(float), &cube_vertices[ 0]), + evas_3d_mesh_frame_vertex_data_set(0, EVAS_3D_VERTEX_NORMAL, + 12 * sizeof(float), &cube_vertices[ 3]), + evas_3d_mesh_frame_vertex_data_set(0, EVAS_3D_VERTEX_COLOR, + 12 * sizeof(float), &cube_vertices[ 6]), + evas_3d_mesh_frame_vertex_data_set(0, EVAS_3D_VERTEX_TEXCOORD, + 12 * sizeof(float), &cube_vertices[10]), + + evas_3d_mesh_index_data_set(EVAS_3D_INDEX_FORMAT_UNSIGNED_SHORT, + 36, &cube_indices[0]), + evas_3d_mesh_vertex_assembly_set(EVAS_3D_VERTEX_ASSEMBLY_TRIANGLES), + + evas_3d_mesh_shade_mode_set(EVAS_3D_SHADE_MODE_PHONG), + + evas_3d_mesh_frame_material_set(0, data->material)); + + data->mesh_node = + eo_add_custom(EVAS_3D_NODE_CLASS, evas, + evas_3d_node_constructor(EVAS_3D_NODE_TYPE_MESH)); + eo_do(data->root_node, evas_3d_node_member_add(data->mesh_node)); + eo_do(data->mesh_node, evas_3d_node_mesh_add(data->mesh)); +} + +static void +_scene_setup(Scene_Data *data) +{ + data->scene = eo_add(EVAS_3D_SCENE_CLASS, evas); + eo_do(data->scene, + evas_3d_scene_size_set(WIDTH, HEIGHT); + evas_3d_scene_background_color_set(0.0, 0.0, 0.0, 0.0)); + + data->root_node = + eo_add_custom(EVAS_3D_NODE_CLASS, evas, + evas_3d_node_constructor(EVAS_3D_NODE_TYPE_NODE)); + + _camera_setup(data); + _light_setup(data); + _mesh_setup(data); + + eo_do(data->scene, + evas_3d_scene_root_node_set(data->root_node), + evas_3d_scene_camera_node_set(data->camera_node)); +} + +static void +_mirror(Evas_Object *image) +{ + int x, y, w, h; + Evas_Map *m_rotate; + + evas_object_geometry_get(image, &x, &y, &w, &h); + m_rotate = evas_map_new(4); + + evas_map_util_points_populate_from_object(m_rotate, image); + 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(image, m_rotate); + evas_object_map_enable_set(image, EINA_TRUE); + + evas_map_free(m_rotate); +} + +int +main(void) +{ + Scene_Data data; + + if (!elm_init(0, 0)) return 0; + + elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED); + + win = elm_win_util_standard_add("__WIN__", " A button on the 3d object"); + elm_win_autodel_set(win, EINA_TRUE); + evas_object_resize(win, WIDTH, HEIGHT); + evas_object_show(win); + + evas = evas_object_evas_get(win); + + /* Add an image object for 3D scene rendering. */ + image = evas_object_image_filled_add(evas); + eo_do(image, + evas_obj_size_set(WIDTH, HEIGHT), + evas_obj_visibility_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); + + /* Enter main loop. */ + elm_run(); + + elm_shutdown(); + + return 0; +}