EPhysics: flip page test

This patch adds a test to simulate page flipping.


Patch by: Leandro Dorileo <dorileo@profusion.mobi>



SVN revision: 79593

legacy/ephysics/data/themes/Makefile.am

@@ -21,6 +21,7 @@ TEST_FILES = \
 	list.edc \
 	loading_bar.edc \
 	others.edc \
+	pages.edc \
 	shadows.edc \
 	shapes.edc \
 	spinner.edc \
@@ -68,6 +69,10 @@ TEST_FILES = \
 	images/list-item-pressed.png \
 	images/loading_bar.png \
 	images/loading_knob.png \
+	images/page_00.png \
+	images/page_01.png \
+	images/page_02.png \
+	images/page_03.png \
 	images/pentagon.png \
 	images/shadow-ball.png \
 	images/shadow-cube.png \

legacy/ephysics/data/themes/ephysics_test.edc

@@ -10,6 +10,7 @@ collections {
 #include "frame.edc"
 #include "list.edc"
 #include "loading_bar.edc"
+#include "pages.edc"
 #include "shadows.edc"
 #include "shapes.edc"
 #include "spinner.edc"

legacy/ephysics/data/themes/frame.edc

@@ -167,6 +167,28 @@
             }
          }
 
+         part {
+            name: "light_msg";
+            type: TEXT;
+            mouse_events: 0;
+            description {
+               state: "default" 0.0;
+               color: 0 0 0 0;
+               rel1.relative: 0.08 0.96;
+               rel2.relative: 0.92 1.0;
+               text {
+                  font: "Sans";
+                  size: 12;
+                  text: "Press x to turn lights on/off.";
+               }
+            }
+            description {
+               state: "visible" 0.0;
+               inherit: "default" 0.0;
+               color: 95 56 19 255;
+            }
+         }
+
          part {
             name: "linear_vel";
             type: TEXT;
@@ -366,6 +388,14 @@
             target: "grab_msg";
           }
 
+          program {
+            name: "light,show";
+            source: "ephysics_test";
+            signal: "light,show";
+            action: STATE_SET "visible" 0.0;
+            target: "light_msg";
+          }
+
           program {
             name: "borders,show";
             source: "ephysics_test";

legacy/ephysics/data/themes/pages.edc

@@ -0,0 +1,30 @@
+#define PAGE_GROUP(_name) \
+   group { \
+      name: "page-"##_name##""; \
+      images { \
+         image: "page_"##_name##".png" COMP; \
+      } \
+\
+      parts { \
+\
+         part { \
+            name: "page"; \
+            mouse_events: 1; \
+            repeat_events: 1; \
+            type: IMAGE; \
+            description { \
+               state: "default" 0.0; \
+               image.normal: "page_"##_name##".png"; \
+            } \
+         } \
+\
+      } \
+\
+   } \
+
+PAGE_GROUP(00)
+PAGE_GROUP(01)
+PAGE_GROUP(02)
+PAGE_GROUP(03)
+
+#undef PAGE_GROUP

legacy/ephysics/src/bin/Makefile.am

@@ -31,6 +31,8 @@ test_cube_3d.c \
 test_delete.c \
 test_dices.c \
 test_falling_letters.c \
+test_flag.c \
+test_flip_page.c \
 test_forces.c \
 test_grab.c \
 test_growing_balls.c \
@@ -46,8 +48,7 @@ test_shapes.c \
 test_sleeping_threshold.c \
 test_slider.c \
 test_soft_body.c \
-test_win_resize.c \
-test_flag.c
+test_win_resize.c
 
 ephysics_logo_SOURCES = \
 ephysics_logo.c

legacy/ephysics/src/bin/test.c

@@ -31,6 +31,7 @@ void test_delete(void *data, Evas_Object *obj, void *event_info);
 void test_dices(void *data, Evas_Object *obj, void *event_info);
 void test_falling_letters(void *data, Evas_Object *obj, void *event_info);
 void test_flag(void *data, Evas_Object *obj, void *event_info);
+void test_flip_page(void *data, Evas_Object *obj, void *event_info);
 void test_forces(void *data, Evas_Object *obj, void *event_info);
 void test_grab(void *data, Evas_Object *obj, void *event_info);
 void test_growing_balls(void *data, Evas_Object *obj, void *event_info);
@@ -64,6 +65,7 @@ static const EPhysics_Test tests[] = {
        {"Delete Body", test_delete},
        {"Falling Letters", test_falling_letters},
        {"Flag - Cloth", test_flag},
+       {"Flip Page", test_flip_page},
        {"Forces", test_forces},
        {"Grab", test_grab},
        {"Growing Balls", test_growing_balls},

legacy/ephysics/src/bin/test_flip_page.c

@@ -0,0 +1,281 @@
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "ephysics_test.h"
+
+#define PAGE_NUM 3
+
+typedef struct _Page_Data
+{
+  EPhysics_Body *body;
+  Evas_Object *evas_obj;
+  int order;
+  struct {
+    Evas_Coord x;
+    Evas_Coord y;
+    int node;
+  } click_data;
+  Evas_Coord x;
+} Page_Data;
+
+static void
+_changed_cb(void *data, Evas_Object *obj, void *event_info __UNUSED__)
+{
+   EPhysics_World *world = data;
+   ephysics_world_light_all_bodies_set(world, elm_check_state_get(obj));
+}
+
+static int
+_pages_sort_cb(const void *d1, const void *d2)
+{
+   const Page_Data *page1, *page2;
+
+   page1 = d1;
+   page2 = d2;
+
+   if (!page1) return -1;
+   if (!page2) return 1;
+
+   if (page1->order < page2->order) return -1;
+   if (page2->order > page2->order) return 1;
+
+   return 0;
+}
+
+static void
+_pages_restack(Eina_Hash *pages, Page_Data *page_data)
+{
+   Page_Data *data;
+   Eina_Iterator *it;
+   Eina_List *l, *list = NULL;
+   Eina_Bool found = EINA_FALSE;
+   int i = 1;
+
+   it = eina_hash_iterator_data_new(pages);
+   while (eina_iterator_next(it, (void **)&data))
+     list = eina_list_append(list, data);
+   eina_iterator_free(it);
+
+   list = eina_list_sort(list, eina_list_count(list), _pages_sort_cb);
+   EINA_LIST_REVERSE_FOREACH(list, l, data)
+     {
+        if (found)
+          {
+             evas_object_layer_set(data->evas_obj, data->order);
+             continue;
+          }
+
+        if (data->evas_obj == page_data->evas_obj)
+          {
+             found = EINA_TRUE;
+             continue;
+          }
+        evas_object_layer_set(data->evas_obj, i);
+        i++;
+     }
+
+   eina_list_free(list);
+   evas_object_layer_set(page_data->evas_obj, PAGE_NUM);
+}
+
+static void
+_mouse_down_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info)
+{
+   Test_Data *test_data = data;
+   Eina_Hash *pages = test_data->data;
+   Page_Data *page_data = eina_hash_find(pages, &obj);
+   Evas_Event_Mouse_Down *mdown = event_info;
+   Evas_Coord x, y;
+
+   evas_object_geometry_get(obj, &x, &y, NULL, NULL);
+   page_data->click_data.x = mdown->output.x;
+   page_data->click_data.y = mdown->output.y;
+   page_data->click_data.node = ephysics_body_soft_body_triangle_index_get(
+                        page_data->body, mdown->canvas.x -x, mdown->canvas.y -y);
+
+   _pages_restack(pages, page_data);
+   ephysics_body_soft_body_dragging_set(page_data->body,
+                                        page_data->click_data.node);
+}
+
+static void
+_mouse_up_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
+{
+   Test_Data *test_data = data;
+   Eina_Hash *pages = test_data->data;
+   Page_Data *page_data = eina_hash_find(pages, &obj);
+
+   ephysics_body_soft_body_dragging_unset(page_data->body);
+}
+
+static void
+_mouse_move_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
+{
+   Test_Data *test_data = data;
+   Eina_Hash *pages = test_data->data;
+   Page_Data *page_data = eina_hash_find(pages, &obj);
+   Evas_Event_Mouse_Move *mmove = event_info;
+   Evas_Coord nx, ny, nz, zl, dist;
+
+   if (mmove->buttons != 1 || page_data->click_data.node < 0) return;
+
+   nx = mmove->cur.output.x;
+   ny = mmove->cur.output.y;
+
+   // distance between the clicked and the evas object x coordinates
+   zl = sqrt(pow(page_data->click_data.x - page_data->x, 2));
+
+   // distance between the current cursor x and the evas object x coordnates
+   dist = sqrt(pow(nx - page_data->x, 2));
+
+   // difference between both distances, the closer the x the highter the z
+   nz = zl - dist;
+
+   DBG("node: %d, nx: %d, ny: %d\n", page_data->click_data.node, nx, ny);
+   ephysics_body_soft_body_triangle_move(page_data->body,
+                                         page_data->click_data.node, nx, ny,
+                                         -nz);
+}
+
+static Page_Data *
+_page_add(Test_Data *test_data, EPhysics_Body *anchor, const char *img, Evas_Coord z)
+{
+   Evas_Object *evas_obj;
+   EPhysics_Body *body;
+   Evas_Coord x, y;
+   Page_Data *page_data;
+
+   page_data = calloc(1, sizeof(Page_Data));
+
+   x = WIDTH / 2;
+   y = FLOOR_Y - 280;
+
+   evas_obj = elm_image_add(test_data->win);
+   elm_image_file_set(
+      evas_obj, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", img);
+   evas_object_move(evas_obj, x, y);
+   evas_object_resize(evas_obj, 200, 282);
+   evas_object_show(evas_obj);
+   evas_object_layer_set(evas_obj, z);
+   test_data->evas_objs = eina_list_append(test_data->evas_objs, evas_obj);
+
+   evas_object_geometry_get(evas_obj, &page_data->x, NULL, NULL, NULL);
+
+   body = ephysics_body_cloth_add(test_data->world, 10, 20);
+   ephysics_body_soft_body_position_iterations_set(body, 6);
+   ephysics_body_soft_body_bending_constraints_add(body, 1);
+   ephysics_body_restitution_set(body, 0);
+   ephysics_body_evas_object_set(body, evas_obj, EINA_TRUE);
+
+   ephysics_body_move(body, x, y, -z * 3);
+
+   test_data->evas_objs = eina_list_append(test_data->evas_objs, evas_obj);
+   test_data->bodies = eina_list_append(test_data->bodies, body);
+
+   ephysics_body_cloth_anchor_full_add(body, anchor,
+                                       EPHYSICS_BODY_CLOTH_ANCHOR_SIDE_LEFT);
+
+
+   page_data->body = body;
+   page_data->evas_obj = evas_obj;
+
+   return page_data;
+}
+
+static void
+_world_populate(Test_Data *test_data)
+{
+   Evas_Object *evas_obj;
+   EPhysics_Body *anchor;
+   const char *img;
+   Eina_Hash *pages;
+   Page_Data *page_data;
+
+   evas_obj = elm_image_add(test_data->win);
+   elm_image_file_set(
+      evas_obj, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "page-00");
+   evas_object_move(evas_obj, (WIDTH / 2) - 200, FLOOR_Y - 280);
+   evas_object_resize(evas_obj, 200, 282);
+   evas_object_show(evas_obj);
+   test_data->evas_objs = eina_list_append(test_data->evas_objs, evas_obj);
+
+   anchor = ephysics_body_back_boundary_add(test_data->world);
+   ephysics_body_restitution_set(anchor, 0);
+   test_data->bodies = eina_list_append(test_data->bodies, anchor);
+
+   pages = eina_hash_pointer_new(NULL);
+   test_data->data = pages;
+
+   for (int i = 1; i <= PAGE_NUM; i++)
+     {
+        img = eina_stringshare_printf("page-0%d", (PAGE_NUM + 1) - i);
+        page_data = _page_add(test_data, anchor, img, i);
+        page_data->order = i;
+        eina_hash_add(pages, &page_data->evas_obj, page_data);
+
+        ephysics_body_collision_group_add(page_data->body, img);
+
+        evas_object_event_callback_add(page_data->evas_obj,
+                                       EVAS_CALLBACK_MOUSE_DOWN, _mouse_down_cb,
+                                       test_data);
+        evas_object_event_callback_add(page_data->evas_obj,
+                                       EVAS_CALLBACK_MOUSE_UP, _mouse_up_cb,
+                                       test_data);
+        evas_object_event_callback_add(page_data->evas_obj,
+                                       EVAS_CALLBACK_MOUSE_MOVE, _mouse_move_cb,
+                                       test_data);
+     }
+}
+
+static void
+_restart(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
+{
+   Test_Data *test_data = data;
+
+   eina_hash_free(test_data->data);
+
+   DBG("Restart pressed");
+   test_clean(test_data);
+   _world_populate(test_data);
+}
+
+void
+test_flip_page(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
+{
+   EPhysics_World *world;
+   Test_Data *test_data;
+   Evas_Object *tg;
+
+   if (!ephysics_init())
+     return;
+
+   test_data = test_data_new();
+
+   test_win_add(test_data, "Flip Page", EINA_TRUE);
+   elm_layout_signal_callback_add(test_data->layout, "restart", "test-theme",
+                                  _restart, test_data);
+
+   world = ephysics_world_new();
+   ephysics_world_simulation_set(world, 1/100.f, 5);
+   ephysics_world_gravity_set(world, 0, 0, 9.8);
+   ephysics_world_render_geometry_set(world, 0, 0, 20, WIDTH, HEIGHT, 2);
+
+   ephysics_world_point_light_position_set(world, WIDTH / 2, HEIGHT / 2, -200);
+   ephysics_camera_perspective_set(ephysics_world_camera_get(world), WIDTH/2,
+                                   HEIGHT/2, 0, 1800);
+   ephysics_camera_perspective_enabled_set(ephysics_world_camera_get(world),
+                                           EINA_TRUE);
+   test_data->world = world;
+   _world_populate(test_data);
+
+   tg = elm_check_add(test_data->win);
+   elm_object_style_set(tg, "ephysics-test");
+   evas_object_size_hint_weight_set(tg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
+   evas_object_size_hint_align_set(tg, EVAS_HINT_FILL, 0.5);
+   elm_check_state_set(tg, EINA_FALSE);
+   evas_object_show(tg);
+   elm_layout_content_set(test_data->layout, "extra_input", tg);
+
+   evas_object_smart_callback_add(tg, "changed", _changed_cb, world);
+}