[gtk] Move gtk_rounded_rect_scale_affine to the right place

[Matthias Clasen <matthiasc src gnome org>]

commit c60a316e22470fd210cbbbaeb3bd2ccc43498f04
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Mar 7 14:35:44 2021 -0500

    Move gtk_rounded_rect_scale_affine to the right place
    
    This function should live with the rest of the
    GskRoundedRect code in gskroundedrect.c.

 gsk/gskroundedrect.c        | 25 +++++++++++++++++++++++++
 gsk/gskroundedrectprivate.h |  7 +++++++
 gtk/gtksnapshot.c           | 32 +++++---------------------------
 3 files changed, 37 insertions(+), 27 deletions(-)
---
diff --git a/gsk/gskroundedrect.c b/gsk/gskroundedrect.c
index 5090a91b1d..92a7bbb966 100644
--- a/gsk/gskroundedrect.c
+++ b/gsk/gskroundedrect.c
@@ -274,6 +274,31 @@ gsk_rounded_rect_shrink (GskRoundedRect *self,
   return self;
 }
 
+void
+gsk_rounded_rect_scale_affine (GskRoundedRect       *dest,
+                               const GskRoundedRect *src,
+                               float                 scale_x,
+                               float                 scale_y,
+                               float                 dx,
+                               float                 dy)
+{
+  guint flip = ((scale_x < 0) ? 1 : 0) + (scale_y < 0 ? 2 : 0);
+
+  g_assert (dest != src);
+
+  graphene_rect_scale (&src->bounds, scale_x, scale_y, &dest->bounds);
+  graphene_rect_offset (&dest->bounds, dx, dy);
+
+  scale_x = fabs (scale_x);
+  scale_y = fabs (scale_y);
+
+  for (guint i = 0; i < 4; i++)
+    {
+      dest->corner[i].width = src->corner[i ^ flip].width * scale_x;
+      dest->corner[i].height = src->corner[i ^ flip].height * scale_y;
+    }
+}
+
 /* XXX: Find a better name */
 gboolean
 gsk_rounded_rect_is_circular (const GskRoundedRect *self)
diff --git a/gsk/gskroundedrectprivate.h b/gsk/gskroundedrectprivate.h
index bddd4ea18c..6dfe4b019d 100644
--- a/gsk/gskroundedrectprivate.h
+++ b/gsk/gskroundedrectprivate.h
@@ -17,6 +17,13 @@ G_BEGIN_DECLS
                      }}
 
 
+void                     gsk_rounded_rect_scale_affine          (GskRoundedRect       *dest,
+                                                                 const GskRoundedRect *src,
+                                                                 float                 scale_x,
+                                                                 float                 scale_y,
+                                                                 float                 dx,
+                                                                 float                 dy);
+
 gboolean                 gsk_rounded_rect_is_circular           (const GskRoundedRect     *self);
 
 void                     gsk_rounded_rect_path                  (const GskRoundedRect     *self,
diff --git a/gtk/gtksnapshot.c b/gtk/gtksnapshot.c
index 008dd108e4..8640a9decb 100644
--- a/gtk/gtksnapshot.c
+++ b/gtk/gtksnapshot.c
@@ -31,6 +31,7 @@
 #include "gsktransformprivate.h"
 
 #include "gsk/gskrendernodeprivate.h"
+#include "gsk/gskroundedrectprivate.h"
 
 #include "gtk/gskpango.h"
 
@@ -708,29 +709,6 @@ gtk_graphene_rect_scale_affine (const graphene_rect_t *rect,
     graphene_rect_normalize (res);
 }
 
-static void
-gtk_rounded_rect_scale_affine (GskRoundedRect       *dest,
-                               const GskRoundedRect *src,
-                               float                 scale_x,
-                               float                 scale_y,
-                               float                 dx,
-                               float                 dy)
-{
-  guint flip;
-  guint i;
-
-  g_assert (dest != src);
-
-  gtk_graphene_rect_scale_affine (&src->bounds, scale_x, scale_y, dx, dy, &dest->bounds);
-  flip = ((scale_x < 0) ? 1 : 0) + (scale_y < 0 ? 2 : 0);
-
-  for (i = 0; i < 4; i++)
-    {
-      dest->corner[i].width = src->corner[i ^ flip].width * fabsf (scale_x);
-      dest->corner[i].height = src->corner[i ^ flip].height * fabsf (scale_y);
-    }
-}
-
 static void
 gtk_snapshot_ensure_affine (GtkSnapshot *snapshot,
                             float       *scale_x,
@@ -1099,7 +1077,7 @@ gtk_snapshot_push_rounded_clip (GtkSnapshot          *snapshot,
                                    gtk_snapshot_collect_rounded_clip,
                                    NULL);
 
-  gtk_rounded_rect_scale_affine (&state->data.rounded_clip.bounds, bounds, scale_x, scale_y, dx, dy);
+  gsk_rounded_rect_scale_affine (&state->data.rounded_clip.bounds, bounds, scale_x, scale_y, dx, dy);
 }
 
 static GskRenderNode *
@@ -2441,7 +2419,7 @@ gtk_snapshot_append_border (GtkSnapshot          *snapshot,
   g_return_if_fail (border_color != NULL);
 
   gtk_snapshot_ensure_affine (snapshot, &scale_x, &scale_y, &dx, &dy);
-  gtk_rounded_rect_scale_affine (&real_outline, outline, scale_x, scale_y, dx, dy);
+  gsk_rounded_rect_scale_affine (&real_outline, outline, scale_x, scale_y, dx, dy);
 
   node = gsk_border_node_new (&real_outline, border_width, border_color);
 
@@ -2478,7 +2456,7 @@ gtk_snapshot_append_inset_shadow (GtkSnapshot          *snapshot,
   g_return_if_fail (color != NULL);
 
   gtk_snapshot_ensure_affine (snapshot, &scale_x, &scale_y, &x, &y);
-  gtk_rounded_rect_scale_affine (&real_outline, outline, scale_x, scale_y, x, y);
+  gsk_rounded_rect_scale_affine (&real_outline, outline, scale_x, scale_y, x, y);
 
   node = gsk_inset_shadow_node_new (&real_outline,
                                     color,
@@ -2520,7 +2498,7 @@ gtk_snapshot_append_outset_shadow (GtkSnapshot          *snapshot,
   g_return_if_fail (color != NULL);
 
   gtk_snapshot_ensure_affine (snapshot, &scale_x, &scale_y, &x, &y);
-  gtk_rounded_rect_scale_affine (&real_outline, outline, scale_x, scale_y, x, y);
+  gsk_rounded_rect_scale_affine (&real_outline, outline, scale_x, scale_y, x, y);
 
   node = gsk_outset_shadow_node_new (&real_outline,
                                      color,