/** * This example shows how to attach mechanism of pick. * * Here shown which transformation should be applied to event_info of * _on_mouse_down to make them usable in evas_3d_scene_pick() * and parameters which can be got from this function. * * @verbatim * gcc -o evas-3d-pick evas-3d-pick.c `pkg-config --libs --cflags efl evas ecore ecore-evas eo` -lm * @endverbatim */ #ifdef HAVE_CONFIG_H #include "config.h" #else #define PACKAGE_EXAMPLES_DIR "." #define EFL_EO_API_SUPPORT #define EFL_BETA_API_SUPPORT #endif #include #include #include #include #include #include "evas-common.h" #define WIDTH 400 #define HEIGHT 400 static const char *image_path = PACKAGE_EXAMPLES_DIR EVAS_IMAGE_FOLDER "/wood.jpg"; static Ecore_Evas *ecore_evas = NULL; static Evas *evas = NULL; static Eo *background = NULL; static Eo *image = NULL; static Eo *scene = NULL; static Eo *root_node = NULL; static Eo *camera_node = NULL; static Eo *camera = NULL; static Eo *mesh_node = NULL; static Eo *mesh = NULL; static Eo *material = NULL; static Eo *texture_diffuse = NULL; static Eo *sphere = NULL; static Eina_Bool _animate_scene(void *data) { static float angle = 0.0f; angle += 0.3; eo_do((Evas_3D_Node *)data, evas_3d_node_orientation_angle_axis_set(angle, 0.0, 1.0, 0.0)); /* Rotate */ if (angle > 360.0) angle -= 360.0f; return EINA_TRUE; } static void _on_delete(Ecore_Evas *ee EINA_UNUSED) { ecore_main_loop_quit(); } static void _on_canvas_resize(Ecore_Evas *ee) { int w, h; ecore_evas_geometry_get(ee, NULL, NULL, &w, &h); evas_object_resize(background, w, h); evas_object_resize(image, w, h); evas_object_move(image, 0, 0); } static void _on_mouse_down(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *obj, void *event_info) { Evas_Event_Mouse_Down *ev = event_info; Evas_Coord x, y, w, h; Evas_Coord obj_x, obj_y; int scene_w, scene_h; Evas_Real scene_x, scene_y; Evas_Real s, t; Evas_3D_Node *n; Evas_3D_Mesh *m; Eina_Bool pick; evas_object_geometry_get(obj, &x, &y, &w, &h); obj_x = ev->canvas.x - x; obj_y = ev->canvas.y - y; eo_do(scene, evas_3d_scene_size_get(&scene_w, &scene_h)); scene_x = obj_x * scene_w / (Evas_Real)w; scene_y = obj_y * scene_h / (Evas_Real)h; eo_do(scene, pick = evas_3d_scene_pick(scene_x, scene_y, &n, &m, &s, &t)); if (pick) printf("Picked : "); else printf("Not picked : "); printf("output(%d, %d) canvas(%d, %d) object(%d, %d) scene(%f, %f) texcoord(%f, %f) " "node(%p) mesh(%p)\n", ev->output.x, ev->output.y, ev->canvas.x, ev->canvas.y, obj_x, obj_y, scene_x, scene_y, s, t, n, m); } int main(void) { //Unless Evas 3D supports Software renderer, we set gl backened forcely. setenv("ECORE_EVAS_ENGINE", "opengl_x11", 1); if (!ecore_evas_init()) return 0; ecore_evas = ecore_evas_new(NULL, 10, 10, WIDTH, HEIGHT, NULL); if (!ecore_evas) return 0; ecore_evas_callback_delete_request_set(ecore_evas, _on_delete); ecore_evas_callback_resize_set(ecore_evas, _on_canvas_resize); ecore_evas_show(ecore_evas); evas = ecore_evas_get(ecore_evas); /* Add a scene object .*/ scene = eo_add(EVAS_3D_SCENE_CLASS, evas); /* Add the root node for the scene. */ root_node = eo_add(EVAS_3D_NODE_CLASS, evas, evas_3d_node_constructor(EVAS_3D_NODE_TYPE_NODE)); /* Add the camera. */ camera = eo_add(EVAS_3D_CAMERA_CLASS, evas); eo_do(camera, evas_3d_camera_projection_perspective_set(30.0, 1.0, 1.0, 100.0)); camera_node = eo_add(EVAS_3D_NODE_CLASS, evas, evas_3d_node_constructor(EVAS_3D_NODE_TYPE_CAMERA)); eo_do(camera_node, evas_3d_node_camera_set(camera), evas_3d_node_position_set(0.0, 0.0, 2.5), 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(root_node, evas_3d_node_member_add(camera_node)); sphere = eo_add(EVAS_3D_PRIMITIVE_CLASS, evas); eo_do(sphere, evas_3d_primitive_form_set(EVAS_3D_MESH_PRIMITIVE_SPHERE), evas_3d_primitive_precision_set(50)); mesh = eo_add(EVAS_3D_MESH_CLASS, evas); eo_do(mesh, evas_3d_mesh_from_primitive_set(0, sphere)); material = eo_add(EVAS_3D_MATERIAL_CLASS, evas); texture_diffuse = eo_add(EVAS_3D_TEXTURE_CLASS, evas); eo_do(texture_diffuse, evas_3d_texture_file_set(image_path, NULL), evas_3d_texture_filter_set(EVAS_3D_TEXTURE_FILTER_LINEAR, EVAS_3D_TEXTURE_FILTER_LINEAR)); eo_do(material, evas_3d_material_texture_set(EVAS_3D_MATERIAL_DIFFUSE, texture_diffuse), 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, 0.01, 0.01, 0.01, 1.0), evas_3d_material_color_set(EVAS_3D_MATERIAL_DIFFUSE, 1.0, 1.0, 1.0, 1.0), evas_3d_material_color_set(EVAS_3D_MATERIAL_SPECULAR, 1.0, 1.0, 1.0, 1.0), evas_3d_material_shininess_set(50.0)); mesh_node = eo_add(EVAS_3D_NODE_CLASS, evas, evas_3d_node_constructor(EVAS_3D_NODE_TYPE_MESH)); eo_do(root_node, evas_3d_node_member_add(mesh_node)); eo_do(mesh_node, evas_3d_node_mesh_add(mesh)); eo_do(mesh, evas_3d_mesh_shade_mode_set(EVAS_3D_SHADE_MODE_DIFFUSE), evas_3d_mesh_frame_material_set(0, material)); /* Set up scene. */ eo_do(scene, evas_3d_scene_root_node_set(root_node), evas_3d_scene_camera_node_set(camera_node), evas_3d_scene_size_set(WIDTH, HEIGHT)); /* Add evas objects. */ background = eo_add(EVAS_RECTANGLE_CLASS, evas); eo_do(background, efl_gfx_color_set(0, 0, 0, 255), efl_gfx_size_set(WIDTH, HEIGHT), efl_gfx_visible_set(EINA_TRUE)); image = evas_object_image_filled_add(evas); eo_do(image, evas_obj_image_scene_set(scene), efl_gfx_size_set(WIDTH, HEIGHT), efl_gfx_visible_set(EINA_TRUE)); evas_object_event_callback_add(image, EVAS_CALLBACK_MOUSE_DOWN, _on_mouse_down, NULL); ecore_timer_add(0.01, _animate_scene, mesh_node); ecore_main_loop_begin(); ecore_evas_free(ecore_evas); ecore_evas_shutdown(); return 0; }