[metacity/wip/muktupavels/work-areas-v3: 2/4] window: use MetaEdge for struts

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 2dff13a2a02762deaa2a007d672854d1001631f7
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sat Jun 16 20:46:55 2018 +0300

    window: use MetaEdge for struts

 src/core/boxes.c     | 16 +++++------
 src/core/testboxes.c | 77 ++++++++++++++++++++++++----------------------------
 src/core/window.c    | 29 ++++++++++++--------
 src/core/workspace.c |  4 +--
 src/include/boxes.h  |  7 -----
 src/include/common.h | 11 ++++----
 6 files changed, 68 insertions(+), 76 deletions(-)
---
diff --git a/src/core/boxes.c b/src/core/boxes.c
index 6d156d6d..be8eacd7 100644
--- a/src/core/boxes.c
+++ b/src/core/boxes.c
@@ -580,7 +580,7 @@ meta_rectangle_get_minimal_spanning_set_for_region (
   for (strut_iter = all_struts; strut_iter; strut_iter = strut_iter->next)
     {
       GList *rect_iter;
-      MetaRectangle *strut_rect = &((MetaStrut*)strut_iter->data)->rect;
+      MetaRectangle *strut_rect = &((MetaEdge *)strut_iter->data)->rect;
 
       tmp_list = ret;
       ret = NULL;
@@ -722,7 +722,7 @@ meta_rectangle_expand_to_avoiding_struts (MetaRectangle       *rect,
   /* Run over all struts */
   for (strut_iter = all_struts; strut_iter; strut_iter = strut_iter->next)
     {
-      MetaStrut *strut = (MetaStrut*) strut_iter->data;
+      MetaEdge *strut = (MetaEdge *) strut_iter->data;
 
       /* Skip struts that don't overlap */
       if (!meta_rectangle_overlap (&strut->rect, rect))
@@ -730,13 +730,13 @@ meta_rectangle_expand_to_avoiding_struts (MetaRectangle       *rect,
 
       if (direction == META_DIRECTION_HORIZONTAL)
         {
-          if (strut->side == META_SIDE_LEFT)
+          if (strut->side_type == META_SIDE_LEFT)
             {
               int offset = BOX_RIGHT(strut->rect) - BOX_LEFT(*rect);
               rect->x     += offset;
               rect->width -= offset;
             }
-          else if (strut->side == META_SIDE_RIGHT)
+          else if (strut->side_type == META_SIDE_RIGHT)
             {
               int offset = BOX_RIGHT (*rect) - BOX_LEFT(strut->rect);
               rect->width -= offset;
@@ -745,13 +745,13 @@ meta_rectangle_expand_to_avoiding_struts (MetaRectangle       *rect,
         }
       else /* direction == META_DIRECTION_VERTICAL */
         {
-          if (strut->side == META_SIDE_TOP)
+          if (strut->side_type == META_SIDE_TOP)
             {
               int offset = BOX_BOTTOM(strut->rect) - BOX_TOP(*rect);
               rect->y      += offset;
               rect->height -= offset;
             }
-          else if (strut->side == META_SIDE_BOTTOM)
+          else if (strut->side_type == META_SIDE_BOTTOM)
             {
               int offset = BOX_BOTTOM(*rect) - BOX_TOP(strut->rect);
               rect->height -= offset;
@@ -1255,7 +1255,7 @@ get_disjoint_strut_rect_list_in_region (const GSList        *old_struts,
   strut_rects = NULL;
   while (old_struts)
     {
-      MetaRectangle *cur = &((MetaStrut*)old_struts->data)->rect;
+      MetaRectangle *cur = &((MetaEdge *)old_struts->data)->rect;
       MetaRectangle *copy = g_new (MetaRectangle, 1);
       *copy = *cur;
       if (meta_rectangle_intersect (copy, region, copy))
@@ -1855,7 +1855,7 @@ meta_rectangle_find_nonintersected_monitor_edges (
   temp_rects = NULL;
   for (; all_struts; all_struts = all_struts->next)
     temp_rects = g_slist_prepend (temp_rects,
-                                  &((MetaStrut*)all_struts->data)->rect);
+                                  &((MetaEdge *)all_struts->data)->rect);
   ret = meta_rectangle_remove_intersections_with_boxes_from_edges (ret,
                                                                    temp_rects);
   g_slist_free (temp_rects);
diff --git a/src/core/testboxes.c b/src/core/testboxes.c
index f1ae214e..08f53862 100644
--- a/src/core/testboxes.c
+++ b/src/core/testboxes.c
@@ -56,19 +56,12 @@ new_meta_rect (int x, int y, int width, int height)
   return temporary;
 }
 
-static MetaStrut*
-new_meta_strut (int x, int y, int width, int height, int side)
-{
-  MetaStrut* temporary;
-  temporary = g_new (MetaStrut, 1);
-  temporary->rect = meta_rect(x, y, width, height);
-  temporary->side = side;
-
-  return temporary;
-}
-
 static MetaEdge*
-new_screen_edge (int x, int y, int width, int height, int side_type)
+new_screen_edge (int      x,
+                 int      y,
+                 int      width,
+                 int      height,
+                 MetaSide side_type)
 {
   MetaEdge* temporary;
   temporary = g_new (MetaEdge, 1);
@@ -83,11 +76,11 @@ new_screen_edge (int x, int y, int width, int height, int side_type)
 }
 
 static MetaEdge *
-new_monitor_edge (int x,
-                  int y,
-                  int width,
-                  int height,
-                  int side_type)
+new_monitor_edge (int      x,
+                  int      y,
+                  int      width,
+                  int      height,
+                  MetaSide side_type)
 {
   MetaEdge* temporary;
   temporary = g_new (MetaEdge, 1);
@@ -242,7 +235,7 @@ static GSList*
 get_strut_list (int which)
 {
   GSList *ans;
-  MetaDirection wc = 0; /* wc == who cares? ;-) */
+  MetaSide wc = 0; /* wc == who cares? ;-) */
 
   ans = NULL;
 
@@ -252,32 +245,32 @@ get_strut_list (int which)
     case 0:
       break;
     case 1:
-      ans = g_slist_prepend (ans, new_meta_strut (   0,    0, 1600,   20, wc));
-      ans = g_slist_prepend (ans, new_meta_strut ( 400, 1160, 1600,   40, wc));
+      ans = g_slist_prepend (ans, new_screen_edge (   0,    0, 1600,   20, wc));
+      ans = g_slist_prepend (ans, new_screen_edge ( 400, 1160, 1600,   40, wc));
       break;
     case 2:
-      ans = g_slist_prepend (ans, new_meta_strut (   0,    0, 1600,   20, wc));
-      ans = g_slist_prepend (ans, new_meta_strut ( 800, 1100,  400,  100, wc));
-      ans = g_slist_prepend (ans, new_meta_strut ( 300, 1150,  150,   50, wc));
+      ans = g_slist_prepend (ans, new_screen_edge (   0,    0, 1600,   20, wc));
+      ans = g_slist_prepend (ans, new_screen_edge ( 800, 1100,  400,  100, wc));
+      ans = g_slist_prepend (ans, new_screen_edge ( 300, 1150,  150,   50, wc));
       break;
     case 3:
-      ans = g_slist_prepend (ans, new_meta_strut (   0,    0, 1600,   20, wc));
-      ans = g_slist_prepend (ans, new_meta_strut ( 800, 1100,  400,  100, wc));
-      ans = g_slist_prepend (ans, new_meta_strut ( 300, 1150,   80,   50, wc));
-      ans = g_slist_prepend (ans, new_meta_strut ( 700,  525,  200,  150, wc));
+      ans = g_slist_prepend (ans, new_screen_edge (   0,    0, 1600,   20, wc));
+      ans = g_slist_prepend (ans, new_screen_edge ( 800, 1100,  400,  100, wc));
+      ans = g_slist_prepend (ans, new_screen_edge ( 300, 1150,   80,   50, wc));
+      ans = g_slist_prepend (ans, new_screen_edge ( 700,  525,  200,  150, wc));
       break;
     case 4:
-      ans = g_slist_prepend (ans, new_meta_strut (   0,    0,  800, 1200, wc));
-      ans = g_slist_prepend (ans, new_meta_strut ( 800,    0, 1600,   20, wc));
+      ans = g_slist_prepend (ans, new_screen_edge (   0,    0,  800, 1200, wc));
+      ans = g_slist_prepend (ans, new_screen_edge ( 800,    0, 1600,   20, wc));
       break;
     case 5:
-      ans = g_slist_prepend (ans, new_meta_strut ( 800,    0, 1600,   20, wc));
-      ans = g_slist_prepend (ans, new_meta_strut (   0,    0,  800, 1200, wc));
-      ans = g_slist_prepend (ans, new_meta_strut ( 800,   10,  800, 1200, wc));
+      ans = g_slist_prepend (ans, new_screen_edge ( 800,    0, 1600,   20, wc));
+      ans = g_slist_prepend (ans, new_screen_edge (   0,    0,  800, 1200, wc));
+      ans = g_slist_prepend (ans, new_screen_edge ( 800,   10,  800, 1200, wc));
       break;
     case 6:
-      ans = g_slist_prepend (ans, new_meta_strut (   0,    0, 1600,   40, wc));
-      ans = g_slist_prepend (ans, new_meta_strut (   0,    0, 1600,   20, wc));
+      ans = g_slist_prepend (ans, new_screen_edge (   0,    0, 1600,   40, wc));
+      ans = g_slist_prepend (ans, new_screen_edge (   0,    0, 1600,   20, wc));
       break;
     default:
       break;
@@ -1030,10 +1023,10 @@ test_find_onscreen_edges (void)
   GList* edges;
   GList* tmp;
 
-  int left   = META_DIRECTION_LEFT;
-  int right  = META_DIRECTION_RIGHT;
-  int top    = META_DIRECTION_TOP;
-  int bottom = META_DIRECTION_BOTTOM;
+  int left   = META_SIDE_LEFT;
+  int right  = META_SIDE_RIGHT;
+  int top    = META_SIDE_TOP;
+  int bottom = META_SIDE_BOTTOM;
 
   /*************************************************/
   /* Make sure test region 0 has the correct edges */
@@ -1163,10 +1156,10 @@ test_find_nonintersected_monitor_edges (void)
   GList* edges;
   GList* tmp;
 
-  int left   = META_DIRECTION_LEFT;
-  int right  = META_DIRECTION_RIGHT;
-  int top    = META_DIRECTION_TOP;
-  int bottom = META_DIRECTION_BOTTOM;
+  int left   = META_SIDE_LEFT;
+  int right  = META_SIDE_RIGHT;
+  int top    = META_SIDE_TOP;
+  int bottom = META_SIDE_BOTTOM;
 
   /*************************************************************************/
   /* Make sure test monitor set 0 for with region 0 has the correct edges */
diff --git a/src/core/window.c b/src/core/window.c
index 3cd5c654..789048ec 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -6389,7 +6389,7 @@ meta_window_update_struts (MetaWindow *window)
           int i;
           for (i=0; i<4; i++)
             {
-              MetaStrut *temp;
+              MetaEdge *temp;
               int thickness, strut_begin, strut_end;
 
               thickness = struts[i];
@@ -6398,10 +6398,13 @@ meta_window_update_struts (MetaWindow *window)
               strut_begin = struts[4+(i*2)];
               strut_end   = struts[4+(i*2)+1];
 
-              temp = g_new (MetaStrut, 1);
-              temp->side = 1 << i; /* See MetaSide def.  Matches nicely, eh? */
+              temp = g_new (MetaEdge, 1);
+
+              temp->side_type = i;
+              temp->edge_type = META_EDGE_SCREEN;
+
               temp->rect = window->screen->rect;
-              switch (temp->side)
+              switch (temp->side_type)
                 {
                 case META_SIDE_RIGHT:
                   temp->rect.x = BOX_RIGHT(temp->rect) - thickness;
@@ -6460,17 +6463,20 @@ meta_window_update_struts (MetaWindow *window)
           int i;
           for (i=0; i<4; i++)
             {
-              MetaStrut *temp;
+              MetaEdge *temp;
               int thickness;
 
               thickness = struts[i];
               if (thickness == 0)
                 continue;
 
-              temp = g_new (MetaStrut, 1);
-              temp->side = 1 << i;
+              temp = g_new (MetaEdge, 1);
+
+              temp->side_type = i;
+              temp->edge_type = META_EDGE_SCREEN;
+
               temp->rect = window->screen->rect;
-              switch (temp->side)
+              switch (temp->side_type)
                 {
                 case META_SIDE_RIGHT:
                   temp->rect.x = BOX_RIGHT(temp->rect) - thickness;
@@ -6510,10 +6516,11 @@ meta_window_update_struts (MetaWindow *window)
   new_iter = new_struts;
   while (old_iter && new_iter)
     {
-      MetaStrut *old_strut = (MetaStrut*) old_iter->data;
-      MetaStrut *new_strut = (MetaStrut*) new_iter->data;
+      MetaEdge *old_strut = (MetaEdge *) old_iter->data;
+      MetaEdge *new_strut = (MetaEdge *) new_iter->data;
 
-      if (old_strut->side != new_strut->side ||
+      if (old_strut->side_type != new_strut->side_type ||
+          old_strut->edge_type != new_strut->edge_type ||
           !meta_rectangle_equal (&old_strut->rect, &new_strut->rect))
         break;
 
diff --git a/src/core/workspace.c b/src/core/workspace.c
index da714063..ff353a21 100644
--- a/src/core/workspace.c
+++ b/src/core/workspace.c
@@ -624,8 +624,8 @@ ensure_work_areas_validated (MetaWorkspace *workspace)
       GSList *s_iter;
 
       for (s_iter = win->struts; s_iter != NULL; s_iter = s_iter->next) {
-        MetaStrut *cpy = g_new (MetaStrut, 1);
-        *cpy = *((MetaStrut *)s_iter->data);
+        MetaEdge *cpy = g_new (MetaEdge, 1);
+        *cpy = *((MetaEdge *)s_iter->data);
         workspace->all_struts = g_slist_prepend (workspace->all_struts,
                                                  cpy);
       }
diff --git a/src/include/boxes.h b/src/include/boxes.h
index 4b881753..4999595b 100644
--- a/src/include/boxes.h
+++ b/src/include/boxes.h
@@ -34,13 +34,6 @@ struct _MetaRectangle
   int height;
 };
 
-typedef struct _MetaStrut MetaStrut;
-struct _MetaStrut
-{
-  MetaRectangle rect;
-  MetaSide side;
-};
-
 #define BOX_LEFT(box)    ((box).x)                /* Leftmost pixel of rect */
 #define BOX_RIGHT(box)   ((box).x + (box).width)  /* One pixel past right   */
 #define BOX_TOP(box)     ((box).y)                /* Topmost pixel of rect  */
diff --git a/src/include/common.h b/src/include/common.h
index 3af03351..223784d5 100644
--- a/src/include/common.h
+++ b/src/include/common.h
@@ -183,15 +183,14 @@ typedef enum
 
 /* Sometimes we want to talk about sides instead of directions; note
  * that the values must be as follows or meta_window_update_struts()
- * won't work. Using these values also is a safety blanket since
- * MetaDirection used to be used as a side.
+ * won't work.
  */
 typedef enum
 {
-  META_SIDE_LEFT            = META_DIRECTION_LEFT,
-  META_SIDE_RIGHT           = META_DIRECTION_RIGHT,
-  META_SIDE_TOP             = META_DIRECTION_TOP,
-  META_SIDE_BOTTOM          = META_DIRECTION_BOTTOM
+  META_SIDE_LEFT = 0,
+  META_SIDE_RIGHT = 1,
+  META_SIDE_TOP = 2,
+  META_SIDE_BOTTOM = 3
 } MetaSide;
 
 /* should investigate changing these to whatever most apps use */