raster pushed a commit to branch master.

http://git.enlightenment.org/core/efl.git/commit/?id=61cecf1f3f68f5850c58c3abdb4a37a1c158cc10

commit 61cecf1f3f68f5850c58c3abdb4a37a1c158cc10
Author: MinJeong Kim <minjjj....@samsung.com>
Date:   Wed May 28 16:34:05 2014 +0900

    eina-tiler:add union, subtract, intersection, equal apis for tilers
    
    Summary:
    Support union, subtract, intersection, equal(comparison) between tilers.
    @feature
    
    Test Plan: Test with added test case(src/tests/eina/eina_test_tiler.c) and 
the example(src/examples/eina/eina_tiler_02.c)
    
    Reviewers: gwanglim, devilhorns, raster, zmike, cedric
    
    CC: cedric
    
    Differential Revision: https://phab.enlightenment.org/D880
---
 src/examples/eina/eina_tiler_02.c | 354 ++++++++++++++++++++++++++++++++++++++
 src/lib/eina/eina_tiler.c         | 206 ++++++++++++++++++++++
 src/lib/eina/eina_tiler.h         |  49 ++++++
 src/tests/eina/eina_test_tiler.c  | 107 ++++++++++++
 4 files changed, 716 insertions(+)

diff --git a/src/examples/eina/eina_tiler_02.c 
b/src/examples/eina/eina_tiler_02.c
new file mode 100644
index 0000000..2e80aaa
--- /dev/null
+++ b/src/examples/eina/eina_tiler_02.c
@@ -0,0 +1,354 @@
+//Compile with:
+//gcc eina_tiler_02.c -o eina_tiler_02 `pkg-config --cflags --libs ecore-evas 
ecore evas eina`
+
+#include <Ecore_Evas.h>
+#include <Ecore.h>
+#include <Evas.h>
+#include <Eina.h>
+
+#define WIN_W    (810)
+#define WIN_H    (280)
+
+#define TILER1_X (30)
+#define TILER1_Y (30)
+#define TILER2_X (530)
+#define TILER2_Y (30)
+#define TILER_W  (250)
+#define TILER_H  (250)
+#define RESULT_X (280)
+#define RESULT_Y (30)
+
+static Eina_Tiler *tiler1, *tiler2;
+static Eina_List *t1_objs, *t2_objs, *tiler_objs;
+static Evas *evas;
+static Evas_Object *bg;
+
+static unsigned int cur_method;
+typedef enum {
+     METHOD_UNION = 0,
+     METHOD_SUBTRACT,
+     METHOD_INTERSECTION,
+}Current_Method;
+
+static unsigned int rect_idx =0, rect_count = 4;
+static const Eina_Rectangle
+   rects[4][2][2] = {
+   {{{40, 0, 80, 250}},
+    {{0, 150, 250, 70}, {0, 20, 250, 70}}},
+
+    {{{20, 20, 65, 150},  {135, 80, 65, 150}},
+     {{20, 80, 65, 150},  {135, 20, 65, 150}}},
+
+    {{{20, 20, 210, 210}},
+     {{80, 80, 90, 90}}},
+
+    {{{0, 0, 150, 90}, {180, 180, 70, 70}},
+     {{70, 70, 120, 120}}}
+};
+
+static const char*
+ Methods[3] = {
+  "UNION 1+2",
+  "SUBTRACT 1-2",
+  "INTERSECTION 1&2"
+};
+
+static unsigned int tile_idx =0, tile_count = 5;
+static const unsigned int
+   tilesize[5] = {
+        32,
+        16,
+        8,
+        4,
+        1
+};
+
+static const char commands[] = \
+  "commands are:\n"
+  "\tn - next arrangement \n"
+  "\tu - get union\n"
+  "\ts - get subtract\n"
+  "\ti - get intersection\n"
+  "\tt - chage tile size ([32], 16, 8, 4) \n"
+  "\tEsc - Exit\n";
+
+
+static Evas_Object *
+add_text(const char *text, int x, int y, int w)
+{
+   Evas_Object *o = evas_object_text_add(evas);
+   evas_object_color_set(o, 0, 0, 0, 255);
+   evas_object_move(o, x, y);
+   evas_object_text_font_set(o, "Sans", 20);
+   evas_object_text_text_set(o, text);
+   evas_object_show(o);
+
+   return o;
+}
+
+void tiler_calc()
+{
+   Eina_Tiler *tiler;
+   Eina_Iterator *itr;
+   Evas_Object *o;
+   Eina_Rectangle *rect;
+   int i = 0;
+
+   /* clear evas rectangles */
+   if (tiler_objs)
+     {
+        EINA_LIST_FREE(tiler_objs, o)
+          {
+             evas_object_hide(o);
+             evas_object_del(o);
+          }
+     }
+
+   tiler = eina_tiler_new(TILER_W, TILER_H);
+   eina_tiler_tile_size_set(tiler,  tilesize[tile_idx], tilesize[tile_idx]);
+
+   /* calculate with tiler1 and tiler2 */
+   switch(cur_method)
+     {
+      case METHOD_UNION:
+         eina_tiler_union(tiler, tiler1);
+         eina_tiler_union(tiler, tiler2);
+         break;
+      case METHOD_SUBTRACT:
+         eina_tiler_union(tiler, tiler1);
+         eina_tiler_subtract(tiler, tiler2);
+         break;
+      case METHOD_INTERSECTION:
+         tiler = eina_tiler_intersection(tiler1, tiler2);
+         break;
+     }
+
+   if (tiler)
+     {
+        /* draw rects of result tiler */
+        itr = eina_tiler_iterator_new(tiler);
+        EINA_ITERATOR_FOREACH(itr, rect)
+          {
+             fprintf(stdout, "Result Rect [%d] (%d, %d) (%d x %d)\n", i++, 
rect->x, rect->y, rect->w, rect->h);
+
+             o = evas_object_rectangle_add(evas);
+             evas_object_color_set(o, 0, 255, 0, 255);
+             evas_object_resize(o, rect->w, rect->h);
+             evas_object_move(o, RESULT_X + rect->x, RESULT_Y + rect->y);
+             evas_object_show(o);
+             tiler_objs = eina_list_append(tiler_objs, o);
+          }
+        eina_iterator_free(itr);
+
+        o = add_text(Methods[cur_method], RESULT_X, 0, TILER_W);
+        tiler_objs = eina_list_append(tiler_objs, o);
+        eina_tiler_free(tiler);
+     }
+}
+
+void rect_update()
+{
+   Evas_Object *o;
+   Eina_Rectangle *rect;
+   Eina_Iterator *itr;
+   int i = 0;
+
+   if (t1_objs)
+     {
+        EINA_LIST_FREE(t1_objs, o)
+          {
+             evas_object_hide(o);
+             evas_object_del(o);
+          }
+     }
+   if (t2_objs)
+     {
+        EINA_LIST_FREE(t2_objs, o)
+          {
+             evas_object_hide(o);
+             evas_object_del(o);
+          }
+     }
+
+   eina_tiler_clear(tiler1);
+   eina_tiler_clear(tiler2);
+
+   eina_tiler_tile_size_set(tiler1, tilesize[tile_idx], tilesize[tile_idx]);
+   eina_tiler_tile_size_set(tiler2, tilesize[tile_idx], tilesize[tile_idx]);
+
+   for (i = 0; i < 2; i ++)
+     {
+        if (rects[rect_idx][0][i].w > 0 && rects[rect_idx][0][i].w > 0)
+          eina_tiler_rect_add(tiler1, &rects[rect_idx][0][i]);
+        if (rects[rect_idx][1][i].w > 0 && rects[rect_idx][1][i].w > 0)
+          eina_tiler_rect_add(tiler2, &rects[rect_idx][1][i]);
+     }
+
+   /* draw rects of tiler1 */
+   itr = eina_tiler_iterator_new(tiler1);
+   EINA_ITERATOR_FOREACH(itr, rect)
+     {
+        o = evas_object_rectangle_add(evas);
+        evas_object_color_set(o, 255, 0, 0, 255);
+        evas_object_resize(o, rect->w, rect->h);
+        evas_object_move(o, TILER1_X + rect->x, TILER1_Y + rect->y);
+        evas_object_show(o);
+        t1_objs = eina_list_append(t1_objs, o);
+     }
+   eina_iterator_free(itr);
+
+   /* draw rects of tiler2 */
+   itr = eina_tiler_iterator_new(tiler2);
+   EINA_ITERATOR_FOREACH(itr, rect)
+     {
+        o = evas_object_rectangle_add(evas);
+        evas_object_color_set(o, 0, 0, 255, 255);
+        evas_object_resize(o, rect->w, rect->h);
+        evas_object_move(o, TILER2_X + rect->x, TILER2_Y + rect->y);
+        evas_object_show(o);
+        t2_objs = eina_list_append(t2_objs, o);
+     }
+   eina_iterator_free(itr);
+
+   tiler_calc();
+}
+
+static void
+_on_key_down(void *data,
+             Evas *evas EINA_UNUSED,
+             Evas_Object *o EINA_UNUSED,
+             void *einfo)
+{
+  Evas_Event_Key_Down *ev;
+  int x,y;
+
+  ev = (Evas_Event_Key_Down *)einfo;
+
+  if(strcmp(ev->key,"Escape") == 0)
+    {
+       ecore_main_loop_quit();
+    }
+  else if(strcmp(ev->key, "u") == 0)
+    {
+       if (cur_method == METHOD_UNION)
+         return;
+
+       cur_method = METHOD_UNION;
+    }
+  else if(strcmp(ev->key, "s") == 0)
+    {
+       if (cur_method == METHOD_SUBTRACT)
+         return;
+
+       cur_method = METHOD_SUBTRACT;
+    }
+  else if(strcmp(ev->key, "i") == 0)
+    {
+       if (cur_method == METHOD_INTERSECTION)
+         return;
+
+       cur_method = METHOD_INTERSECTION;
+    }
+  else if(strcmp(ev->key, "t") == 0)
+    {
+       /* change tiler tile size */
+       tile_idx ++;
+       tile_idx %= tile_count;
+       fprintf(stdout, "Tiler Size : %d\n", tilesize[tile_idx]);
+
+       rect_update();
+       return;
+    }
+  else if(strcmp(ev->key, "n") == 0)
+    {
+       /* change arrangement of tilers's rects */
+       rect_idx ++;
+       rect_idx %= rect_count;
+       rect_update();
+       return;
+    }
+  else
+    {
+       fprintf(stdout, "Key %s not supported.\nCommands:%s", ev->key, 
commands);
+       return;
+    }
+
+  tiler_calc();
+}
+
+int
+main(int argc, char *argv[])
+{
+   Ecore_Evas *ee;
+   Evas_Object *o;
+   int i;
+   Eina_Rectangle *rect;
+   Eina_Iterator *itr;
+
+   fprintf(stdout, "Usage.\nCommands:%s", commands);
+
+   ecore_evas_init();
+   ecore_init();
+   evas_init();
+   eina_init();
+
+   ee = ecore_evas_new(NULL, 0, 0, WIN_W, WIN_H, NULL);
+   if (!ee)
+     {
+        fputs("ERROR: Could not create window. Check ecore-evas install.\n",
+              stderr);
+        goto end;
+     }
+
+   evas = ecore_evas_get(ee);
+
+   /* window bg */
+   o = evas_object_rectangle_add(evas);
+   evas_object_color_set(o, 255, 255, 255, 255);
+   evas_object_resize(o, WIN_W, WIN_H);
+   evas_object_show(o);
+   evas_object_focus_set(o, EINA_TRUE);
+   bg = o;
+
+   /* tiler1 bg */
+   o = evas_object_rectangle_add(evas);
+   evas_object_color_set(o, 0, 0, 0, 255);
+   evas_object_resize(o, TILER_W, TILER_H);
+   evas_object_move(o, TILER1_X, TILER1_Y);
+   evas_object_show(o);
+
+   /* tiler2 bg */
+   o = evas_object_rectangle_add(evas);
+   evas_object_color_set(o, 0, 0, 0, 255);
+   evas_object_resize(o, TILER_W, TILER_H);
+   evas_object_move(o, TILER2_X, TILER2_Y);
+   evas_object_show(o);
+
+   add_text("Tiler1", TILER1_X, 0, TILER_W);
+   add_text("Tiler2", TILER2_X, 0, TILER_W);
+
+   tiler1 = eina_tiler_new(TILER_W, TILER_H);
+   tiler2 = eina_tiler_new(TILER_W, TILER_H);
+
+   rect_update();
+
+   evas_object_event_callback_add(bg, EVAS_CALLBACK_KEY_DOWN, _on_key_down, 
NULL);
+
+   ecore_evas_show(ee);
+   ecore_main_loop_begin();
+
+   eina_list_free(tiler_objs);
+   eina_list_free(t1_objs);
+   eina_list_free(t2_objs);
+   eina_tiler_free(tiler1);
+   eina_tiler_free(tiler2);
+   ecore_evas_free(ee);
+
+ end:
+   eina_shutdown();
+   evas_shutdown();
+   ecore_shutdown();
+   ecore_evas_shutdown();
+
+   return 0;
+}
diff --git a/src/lib/eina/eina_tiler.c b/src/lib/eina/eina_tiler.c
index 0301737..275ff7b 100644
--- a/src/lib/eina/eina_tiler.c
+++ b/src/lib/eina/eina_tiler.c
@@ -1347,6 +1347,212 @@ EAPI Eina_Iterator *eina_tiler_iterator_new(const 
Eina_Tiler *t)
    return &it->iterator;
 }
 
+EAPI Eina_Bool
+eina_tiler_union(Eina_Tiler *dst,
+                 Eina_Tiler *src)
+{
+   Eina_Iterator *itr;
+   Eina_Rectangle *rect, _rect;
+
+   if ((!src) || (!dst))
+     return EINA_FALSE;
+
+   EINA_MAGIC_CHECK_TILER(src, EINA_FALSE);
+   EINA_MAGIC_CHECK_TILER(dst, EINA_FALSE);
+
+   if ((src->area.w <= 0) || (src->area.h <=0))
+     return EINA_FALSE;
+
+   dst->area.w = MAX(src->area.w, dst->area.w);
+   dst->area.h = MAX(src->area.h, dst->area.h);
+
+   itr = eina_tiler_iterator_new(src);
+   if (!itr)
+     return EINA_FALSE;
+
+   EINA_ITERATOR_FOREACH(itr, rect)
+     {
+        _rect = *rect;
+        if (src->rounding)
+          {
+             _rect.w -= 1;
+             _rect.h -= 1;
+          }
+        _splitter_rect_add(dst, &_rect);
+     }
+   eina_iterator_free(itr);
+
+   if (rect)
+     dst->last.add = *rect;
+
+   return EINA_TRUE;
+}
+
+EAPI Eina_Bool
+eina_tiler_subtract(Eina_Tiler *dst,
+                    Eina_Tiler *src)
+{
+   Eina_Iterator *itr;
+   Eina_Rectangle *rect, _rect;
+
+   if ((!src) || (!dst))
+     return EINA_FALSE;
+
+   EINA_MAGIC_CHECK_TILER(src, EINA_FALSE);
+   EINA_MAGIC_CHECK_TILER(dst, EINA_FALSE);
+
+   if ((src->area.w <= 0) || (src->area.h <= 0))
+     return EINA_FALSE;
+
+   itr = eina_tiler_iterator_new(src);
+   if (!itr)
+     return EINA_FALSE;
+
+   EINA_ITERATOR_FOREACH(itr, rect)
+     {
+        _rect = *rect;
+        if (src->rounding)
+          {
+             _rect.w -= 1;
+             _rect.h -= 1;
+          }
+        _splitter_rect_del(dst, &_rect);
+     }
+   eina_iterator_free(itr);
+
+   if (rect)
+     dst->last.del = *rect;
+
+   return EINA_TRUE;
+}
+
+EAPI Eina_Tiler *
+eina_tiler_intersection(Eina_Tiler *t1,
+                        Eina_Tiler *t2)
+{
+   Eina_Tiler *t;
+   int w, h;
+
+   Eina_Iterator *itr1, *itr2;
+   Eina_Rectangle rect, *rect1, *rect2;
+
+   EINA_MAGIC_CHECK_TILER(t1, NULL);
+   EINA_MAGIC_CHECK_TILER(t2, NULL);
+
+   if (!(eina_rectangles_intersect(&t1->area, &t2->area)))
+     return NULL;
+
+   w = MIN(t1->area.w, t2->area.w);
+   h = MIN(t1->area.h, t2->area.h);
+   t = eina_tiler_new(w, h);
+
+   itr1 = eina_tiler_iterator_new(t1);
+   itr2 = eina_tiler_iterator_new(t2);
+
+   if ((!eina_iterator_next(itr1, (void**)(void*)(&rect1))) && (!rect1))
+     return NULL;
+   if ((!eina_iterator_next(itr2, (void**)(void*)(&rect2))) && (!rect2))
+     return NULL;
+
+   while((rect1) && (rect2))
+     {
+        if (eina_rectangles_intersect(rect1, rect2))
+          {
+             rect.x = MAX(rect1->x, rect2->x);
+             rect.y = MAX(rect1->y, rect2->y);
+             rect.w = MIN(rect1->x + rect1->w, rect2->x + rect2->w) - rect.x;
+             rect.h = MIN(rect1->y + rect1->h, rect2->y + rect2->h) - rect.y;
+
+             if ((t1->rounding) || (t2->rounding))
+               {
+                  rect.w -= 1;
+                  rect.h -= 1;
+               }
+
+             _splitter_rect_add(t, &rect);
+
+             t->last.add = rect;
+          }
+
+        if (rect1->x + rect1->w  < rect2->x + rect2->w)
+          {
+             if(eina_iterator_next(itr1, (void**)&rect1))
+               continue;
+          }
+        else if (rect1->x + rect1->w > rect2->x + rect2->w)
+          {
+             if (eina_iterator_next(itr2, (void**)&rect2))
+               continue;
+          }
+
+        if (eina_iterator_next(itr1, (void**)&rect1))
+          continue;
+        if (eina_iterator_next(itr2, (void**)&rect2))
+          continue;
+
+        break;
+     }
+
+   eina_iterator_free(itr1);
+   eina_iterator_free(itr2);
+
+   return t;
+}
+
+EAPI Eina_Bool
+eina_tiler_equal(Eina_Tiler *t1,
+                 Eina_Tiler *t2)
+{
+   Eina_Iterator  *itr1, *itr2;
+   Eina_Rectangle *rect1, *rect2;
+   Eina_Bool      next_t1 = EINA_FALSE, next_t2 = EINA_FALSE;
+
+   EINA_MAGIC_CHECK_TILER(t1, EINA_FALSE);
+   EINA_MAGIC_CHECK_TILER(t2, EINA_FALSE);
+
+   if (!(eina_rectangles_intersect(&t1->area, &t2->area)))
+     return EINA_FALSE;
+
+   itr1 = eina_tiler_iterator_new(t1);
+   itr2 = eina_tiler_iterator_new(t2);
+
+   if ((!eina_iterator_next(itr1, (void**)(void*)(&rect1))) && (!rect1))
+     return EINA_FALSE;
+   if ((!eina_iterator_next(itr2, (void**)(void*)(&rect2))) && (!rect2))
+     return EINA_FALSE;
+
+   while((rect1) && (rect2))
+     {
+        if (eina_rectangles_intersect(rect1, rect2))
+          {
+             if ((rect1->x != rect2->x) ||
+                 (rect1->y != rect2->y) ||
+                 (rect1->w != rect2->w) ||
+                 (rect1->h != rect2->h))
+               {
+                  return EINA_FALSE;
+               }
+          }
+        else
+          return EINA_FALSE;
+
+        next_t1 = eina_iterator_next(itr1, (void**)&rect1);
+        next_t2 = eina_iterator_next(itr2, (void**)&rect2);
+
+        if (next_t1 != next_t2)
+          return EINA_FALSE;
+
+        if (!next_t1 && !next_t2)
+          break;
+     }
+
+   eina_iterator_free(itr1);
+   eina_iterator_free(itr2);
+
+   return EINA_TRUE;
+
+}
+
 struct _Eina_Tile_Grid_Slicer_Iterator
 {
    Eina_Iterator iterator;
diff --git a/src/lib/eina/eina_tiler.h b/src/lib/eina/eina_tiler.h
index 3a48383..0f60751 100644
--- a/src/lib/eina/eina_tiler.h
+++ b/src/lib/eina/eina_tiler.h
@@ -308,6 +308,55 @@ EAPI Eina_Iterator     *eina_tiler_iterator_new(const 
Eina_Tiler *t);
  * eina_tile_grid_slicer_next() untill it returns #EINA_FALSE.
  */
 EAPI Eina_Iterator     *eina_tile_grid_slicer_iterator_new(int x, int y, int 
w, int h, int tile_w, int tile_h);
+
+/**
+ * @brief Gets the union of two tilers.
+ *
+ * @param   dst The first tiler, will store the result.
+ * @param   src The second tiler.
+ * @return  #EINA_TRUE on success, #EINA_FALSE otherwise.
+ *
+ * This fuction get the union of tilers @p dst and @p src.
+ * The result is stored in @p dst. It returns #EINA_TRUE if it succeeds.
+ */
+EAPI Eina_Bool          eina_tiler_union(Eina_Tiler *dst, Eina_Tiler *src);
+
+/**
+ * @brief Subtracts two tilers.
+ *
+ * @param   dst The first tiler, will store the result.
+ * @param   src The second tiler.
+ * @return  #EINA_TRUE on success, #EINA_FALSE otherwise.
+ *
+ * This fuction subtracts two tilers @p dst and @p src.
+ * The result is stored in @p dst. It returns #EINA_TRUE if it succeeds.
+ */
+EAPI Eina_Bool          eina_tiler_subtract(Eina_Tiler *dst, Eina_Tiler *src);
+
+/**
+ * @brief Gets the intersection of two tilers.
+ *
+ * @param   t1 The first tile.
+ * @param   t2 The second tiler.
+ * @return  A pointer of intersection result. @c NULL on failure.
+ *
+ * This fuction gest intersection of two tilers @p t1 and @p t2.
+ * It returns a pointer of result if it succeeds., otherwise returns NULL.
+ */
+EAPI Eina_Tiler        *eina_tiler_intersection(Eina_Tiler *t1, Eina_Tiler 
*t2);
+
+/**
+ * @brief Gets whether two tilers are equal in rects or not.
+ *
+ * @param   t1 The first tiler.
+ * @param   t2 The second tiler.
+ * @return  #EINA_TRUE is equal, #EINA_FALSE is unequal.
+ *
+ * This fuction gets result of comparison for @p t1 and @p t2.
+ * It returns #EINA_TRUE if tilers are equal.
+ */
+EAPI Eina_Bool           eina_tiler_equal(Eina_Tiler *t1, Eina_Tiler *t2);
+
 /**
  * @brief Iterates over the tiles set by eina_tile_grid_slicer_setup().
  *
diff --git a/src/tests/eina/eina_test_tiler.c b/src/tests/eina/eina_test_tiler.c
index 2dec168..554dc11 100644
--- a/src/tests/eina/eina_test_tiler.c
+++ b/src/tests/eina/eina_test_tiler.c
@@ -220,10 +220,117 @@ START_TEST(eina_test_tiler_stable)
 }
 END_TEST
 
+START_TEST(eina_test_tiler_calculation)
+{
+   Eina_Tiler *t1, *t2, *t;
+   Eina_Iterator *itr;
+   Eina_Rectangle r1, r2, *rp;
+   int i = 0;
+
+   eina_init();
+
+   t1 = eina_tiler_new(500, 500);
+   fail_if(!t1);
+
+   t2 = eina_tiler_new(500, 500);
+   fail_if(!t2);
+
+   t = eina_tiler_new(500, 500);
+   fail_if(!t);
+
+   eina_tiler_tile_size_set(t1, 1, 1);
+   eina_tiler_tile_size_set(t2, 1, 1);
+   eina_tiler_tile_size_set(t, 1, 1);
+
+   EINA_RECTANGLE_SET(&r1, 0, 0, 500, 500);
+   eina_tiler_rect_add(t1, &r1);
+
+   EINA_RECTANGLE_SET(&r2, 100, 100, 300, 300);
+   eina_tiler_rect_add(t2, &r2);
+
+   fail_if(!eina_tiler_union(t1, t2));
+
+   itr = eina_tiler_iterator_new(t1);
+   EINA_ITERATOR_FOREACH(itr, rp)
+     {
+        fail_if(rp->w != 500);
+        fail_if(rp->h != 500);
+        fail_if(rp->x != 0);
+        fail_if(rp->y != 0);
+        ++i;
+     }
+
+   eina_iterator_free(itr);
+   eina_tiler_clear(t1);
+
+   fail_if(i != 1);
+
+   eina_tiler_rect_add(t1, &r1);
+
+   fail_if(!eina_tiler_subtract(t1, t2));
+
+   i = 0;
+   itr = eina_tiler_iterator_new(t1);
+   EINA_ITERATOR_FOREACH(itr, rp)
+     {
+        fail_if(!eina_rectangles_intersect(&r1, rp));
+        fail_if(eina_rectangles_intersect(&r2, rp));
+
+        fail_if(rp->w <= 0);
+        fail_if(rp->h <= 0);
+        fail_if(rp->x < 0 || rp->x + rp->w > 500);
+        fail_if(rp->y < 0 || rp->y + rp->h > 500);
+        ++i;
+     }
+
+   eina_iterator_free(itr);
+   eina_tiler_clear(t1);
+
+   fail_if(i != 4);
+
+
+   eina_tiler_rect_add(t1, &r1);
+
+   t = eina_tiler_intersection(t1, t2);
+   fail_if(!t);
+
+   i = 0;
+   itr = eina_tiler_iterator_new(t);
+   EINA_ITERATOR_FOREACH(itr, rp)
+     {
+        fail_if(!eina_rectangles_intersect(&r1, rp));
+        fail_if(!eina_rectangles_intersect(&r2, rp));
+
+        fail_if(rp->w <= 0);
+        fail_if(rp->h <= 0);
+        fail_if(rp->x < 0 || rp->x + rp->w > 500);
+        fail_if(rp->y < 0 || rp->y + rp->h > 500);
+        ++i;
+     }
+
+   eina_iterator_free(itr);
+   eina_tiler_clear(t);
+
+   fail_if(i != 1);
+
+   eina_tiler_rect_add(t, &r1);
+
+   fail_if(!eina_tiler_equal(t, t1));
+   fail_if(!eina_tiler_equal(t1, t));
+
+   eina_tiler_free(t);
+   eina_tiler_free(t1);
+   eina_tiler_free(t2);
+
+   eina_shutdown();
+}
+END_TEST
+
 void
 eina_test_tiler(TCase *tc)
 {
    tcase_add_test(tc, eina_test_tile_grid_slicer_iterator);
    tcase_add_test(tc, eina_test_tiler_all);
    tcase_add_test(tc, eina_test_tiler_stable);
+   tcase_add_test(tc, eina_test_tiler_calculation);
 }

-- 


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