From 95e4dc70ff9118d0abfd5321605385321ab02f5c Mon Sep 17 00:00:00 2001
From: David Walter Seikel
Date: Tue, 6 May 2014 00:12:23 +1000
Subject: Shuffle stuff around into the new scenri.c and camera stuff.

---
 src/extantz/scenri.c | 147 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 src/extantz/scenri.c

(limited to 'src/extantz/scenri.c')

diff --git a/src/extantz/scenri.c b/src/extantz/scenri.c
new file mode 100644
index 0000000..0805108
--- /dev/null
+++ b/src/extantz/scenri.c
@@ -0,0 +1,147 @@
+#include "extantz.h"
+#include "scenri.h"
+
+static void _on_mouse_move(void *data, Evas *e EINA_UNUSED, Evas_Object *o, void *einfo)
+{
+  Scene_Data *scene = data;
+  Evas_Event_Mouse_Move *ev = einfo;
+  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;
+  char *name = NULL;
+
+  evas_object_geometry_get(o, &x, &y, &w, &h);
+
+  obj_x = ev->cur.canvas.x - x;
+  obj_y = ev->cur.canvas.y - y;
+
+  eo_do(scene->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->scene, pick = evas_3d_scene_pick(scene_x, scene_y, &n, &m, &s, &t));
+  if (pick)
+    name = evas_object_data_get(n, "Name");
+  // This is a raw Evas callback, on the Elm image internal Evas_Object.
+  // So we need to get the Elm Image back from the raw Evas_Object.
+  // Which is why we stuffed it in the scene structure.
+  if (name)
+  {
+    elm_object_tooltip_text_set(scene->image, name);
+    elm_object_tooltip_show(scene->image);
+  }
+  else
+  {
+    elm_object_tooltip_text_set(scene->image, "");
+    elm_object_tooltip_hide(scene->image);
+  }
+}
+
+static void _on_mouse_down(void *data, Evas *e EINA_UNUSED, Evas_Object *o, void *einfo)
+{
+  Scene_Data *scene = data;
+  Evas_Event_Mouse_Down *ev = einfo;
+  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;
+  char *name = NULL;
+
+  // Set the focus onto us.
+  elm_object_focus_set(o, EINA_TRUE);
+
+  evas_object_geometry_get(o, &x, &y, &w, &h);
+
+  obj_x = ev->canvas.x - x;
+  obj_y = ev->canvas.y - y;
+
+  eo_do(scene->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->scene, pick = evas_3d_scene_pick(scene_x, scene_y, &n, &m, &s, &t));
+  if (pick)
+  {
+    name = evas_object_data_get(n, "Name");
+    printf("Picked     : ");
+  }
+  else
+    printf("Not picked : ");
+  if (NULL == name)
+    name = "";
+
+  printf("output(%d, %d) canvas(%d, %d) object(%d, %d) scene(%f, %f) texcoord(%f, %f) node(%p) %s 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, name, m);
+}
+
+Scene_Data *scenriAdd(globals *ourGlobals)
+{
+  Scene_Data *scene;
+  Evas_Object *obj, *temp;
+
+  scene = calloc(1, sizeof(Scene_Data));
+
+  // TODO - I have no idea how this should work.
+  // It seems the people that wrote the examples don't know either.  lol
+//  scene->root_node = eo_add(EVAS_3D_NODE_CLASS, ourGlobals->evas, EVAS_3D_NODE_TYPE_NODE);
+  scene->root_node = evas_3d_node_add(ourGlobals->evas, EVAS_3D_NODE_TYPE_NODE);
+
+  scene->scene = eo_add(EVAS_3D_SCENE_CLASS, ourGlobals->evas,
+    evas_3d_scene_root_node_set(scene->root_node),
+    evas_3d_scene_size_set(512, 512),
+    evas_3d_scene_background_color_set(0.0, 0.0, 0.0, 0.0)
+  );
+
+  // Add an image object for 3D scene rendering.
+  obj = eo_add(ELM_OBJ_IMAGE_CLASS, ourGlobals->win,
+    evas_obj_size_hint_weight_set(EVAS_HINT_EXPAND, EVAS_HINT_EXPAND),
+    elm_obj_image_fill_outside_set(EINA_TRUE),
+    evas_obj_visibility_set(EINA_TRUE),
+    temp = elm_obj_image_object_get()
+  );
+  elm_object_tooltip_text_set(obj, "");
+  elm_object_tooltip_hide(obj);
+  scene->image = obj;
+  scene->camera_node = cameraAdd(ourGlobals, scene, obj);
+
+  scene->light = eo_add(EVAS_3D_LIGHT_CLASS, ourGlobals->evas,
+    evas_3d_light_ambient_set(1.0, 1.0, 1.0, 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),
+    evas_3d_light_directional_set(EINA_TRUE)
+  );
+
+  scene->light_node = evas_3d_node_add(ourGlobals->evas, EVAS_3D_NODE_TYPE_LIGHT);
+  eo_do(scene->light_node,
+    evas_3d_node_light_set(scene->light),
+    evas_3d_node_position_set(1000.0, 0.0, 1000.0),
+    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(scene->root_node, evas_3d_node_member_add(scene->light_node));
+
+  eo_do(temp, evas_obj_image_scene_set(scene->scene));
+  // Elm can't seem to be able to tell us WHERE an image was clicked, so use raw Evas calbacks instead.
+  evas_object_event_callback_add(temp, EVAS_CALLBACK_MOUSE_MOVE, _on_mouse_move, scene);
+  evas_object_event_callback_add(temp, EVAS_CALLBACK_MOUSE_DOWN, _on_mouse_down, scene);
+
+  elm_win_resize_object_add(ourGlobals->win, obj);
+
+  return scene;
+}
+
+void scenriDel(globals *ourGlobals)
+{
+  eo_unref(ourGlobals->scene->image);
+}
-- 
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