[gtk/wip/otte/transform: 23/37] rendernodepaintable: Use new snapshot transforms

[Benjamin Otte <otte src gnome org>]

commit 6e9b0e4484221b2fdfe6a76babc960e463523148
Author: Benjamin Otte <otte redhat com>
Date:   Thu Feb 21 05:34:12 2019 +0100

    rendernodepaintable: Use new snapshot transforms

 gtk/gtkrendernodepaintable.c | 26 ++++++--------------------
 1 file changed, 6 insertions(+), 20 deletions(-)
---
diff --git a/gtk/gtkrendernodepaintable.c b/gtk/gtkrendernodepaintable.c
index 8e67150a37..2a85de2aad 100644
--- a/gtk/gtkrendernodepaintable.c
+++ b/gtk/gtkrendernodepaintable.c
@@ -43,28 +43,17 @@ gtk_render_node_paintable_paintable_snapshot (GdkPaintable *paintable,
                                               double        height)
 {
   GtkRenderNodePaintable *self = GTK_RENDER_NODE_PAINTABLE (paintable);
-  gboolean needs_transform;
 
   if (self->bounds.size.width <= 0 ||
       self->bounds.size.height <= 0)
     return;
 
-  needs_transform = self->bounds.size.width != width ||
-                    self->bounds.size.height != height;
+  gtk_snapshot_save (snapshot);
 
-  if (needs_transform)
-    {
-      graphene_matrix_t transform;
-
-      graphene_matrix_init_scale (&transform,
-                                  width / (self->bounds.size.width),
-                                  height / (self->bounds.size.height),
-                                  1.0);
-      gtk_snapshot_push_transform (snapshot,
-                                   &transform);
-    }
-
-  gtk_snapshot_offset (snapshot, -self->bounds.origin.x, -self->bounds.origin.y);
+  gtk_snapshot_scale (snapshot,
+                      width / (self->bounds.size.width),
+                      height / (self->bounds.size.height));
+  gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (-self->bounds.origin.x, -self->bounds.origin.y));
 
   gtk_snapshot_push_clip (snapshot, &self->bounds);
 
@@ -73,10 +62,7 @@ gtk_render_node_paintable_paintable_snapshot (GdkPaintable *paintable,
 
   gtk_snapshot_pop (snapshot);
 
-  gtk_snapshot_offset (snapshot, self->bounds.origin.x, self->bounds.origin.y);
-
-  if (needs_transform)
-    gtk_snapshot_pop (snapshot);
+  gtk_snapshot_restore (snapshot);
 }
 
 static GdkPaintableFlags