1 files changed, 98 insertions, 0 deletions

diff --git a/libraries/evas/src/lib/canvas/evas_rectangle.c b/libraries/evas/src/lib/canvas/evas_rectangle.c
new file mode 100644
index 0000000..da6b701
--- /dev/null
+++ b/libraries/evas/src/lib/canvas/evas_rectangle.c
@@ -0,0 +1,98 @@
+#include "evas_common.h"
+#include "evas_private.h"
+
+void
+evas_rects_return_difference_rects(Eina_Array *rects, int x, int y, int w, int h, int xx, int yy, int ww, int hh)
+{
+   if (!RECTS_INTERSECT(x, y, w, h, xx, yy, ww, hh))
+     {
+        evas_add_rect(rects, x, y, w, h);
+        evas_add_rect(rects, xx, yy, ww, hh);
+     }
+   else
+     {
+        int pt_x[4], pt_y[4], i, j;
+
+        if (x < xx)
+          {
+             pt_x[0] = x;
+             pt_x[1] = xx;
+          }
+        else
+          {
+             pt_x[0] = xx;
+             pt_x[1] = x;
+          }
+        if ((x + w) < (xx + ww))
+          {
+             pt_x[2] = x + w;
+             pt_x[3] = xx + ww;
+          }
+        else
+          {
+             pt_x[2] = xx + ww;
+             pt_x[3] = x + w;
+          }
+        if (y < yy)
+          {
+             pt_y[0] = y;
+             pt_y[1] = yy;
+          }
+        else
+          {
+             pt_y[0] = yy;
+             pt_y[1] = y;
+          }
+        if ((y + h) < (yy + hh))
+          {
+             pt_y[2] = y + h;
+             pt_y[3] = yy + hh;
+          }
+        else
+          {
+             pt_y[2] = yy + hh;
+             pt_y[3] = y + h;
+          }
+        for (j = 0; j < 3; j++)
+          {
+             for (i = 0; i < 3; i++)
+               {
+                  int intsec1, intsec2;
+                  int tx, ty, tw, th;
+
+                  tx = pt_x[i];
+                  ty = pt_y[j];
+                  tw = pt_x[i + 1] - pt_x[i];
+                  th = pt_y[j + 1] - pt_y[j];
+
+                  intsec1 = (RECTS_INTERSECT(tx, ty, tw, th, x, y, w, h));
+                  intsec2 = (RECTS_INTERSECT(tx, ty, tw, th, xx, yy, ww, hh));
+                  if (intsec1 ^ intsec2)
+                    {
+                       evas_add_rect(rects, tx, ty, tw, th);
+                    }
+               }
+          }
+/*      if (tmp.count > 0) */
+/*        { */
+/*           unsigned int i; */
+
+/*           for (i = 0; i < tmp.count; ++i) */
+/*             { */
+/*                if ((tmp.array[i].w > 0) && (tmp.array[i].h > 0)) */
+/*                  { */
+/*                     int intsec1, intsec2; */
+
+/*                     intsec1 = (RECTS_INTERSECT(tmp.array[i].x, tmp.array[i].y, tmp.array[i].w, tmp.array[i].h, x, y, w, h)); */
+/*                     intsec2 = (RECTS_INTERSECT(tmp.array[i].x, tmp.array[i].y, tmp.array[i].w, tmp.array[i].h, xx, yy, ww, hh)); */
+/*                     if (intsec1 ^ intsec2) */
+/*                       { */
+/*                          evas_add_rect(rects, tmp.array[i].x, tmp.array[i].y, tmp.array[i].w, tmp.array[i].h); */
+/*                       } */
+/*                  } */
+/*             } */
+/*           free(tmp.array); */
+/*        } */
+
+     }
+}