[gnome-shell/gbsneto/fix-switching-scale] st/theme-node: Use the node's scale factor

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 0e8ed71202bc3e3f8498cb2878387daec6bb553a
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Apr 3 18:04:13 2020 -0300

    st/theme-node: Use the node's scale factor
    
    Each node stores the scale factor in place when it was created.
    Creating nodes with the same style, but with different scale
    factors, yields different nodes.
    
    Use the node's scale factor instead of retrieving the context's
    one.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1176

 src/st/st-theme-node.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)
---
diff --git a/src/st/st-theme-node.c b/src/st/st-theme-node.c
index bd55235176..b553d1df7e 100644
--- a/src/st/st-theme-node.c
+++ b/src/st/st-theme-node.c
@@ -978,9 +978,7 @@ get_length_from_term (StThemeNode *node,
   } type = ABSOLUTE;
 
   double multiplier = 1.0;
-  int scale_factor;
 
-  g_object_get (node->context, "scale-factor", &scale_factor, NULL);
 
   if (term->type != TERM_NUMBER)
     {
@@ -995,7 +993,7 @@ get_length_from_term (StThemeNode *node,
     {
     case NUM_LENGTH_PX:
       type = ABSOLUTE;
-      multiplier = 1 * scale_factor;
+      multiplier = 1 * node->scale_factor;
       break;
     case NUM_LENGTH_PT:
       type = POINTS;
@@ -1126,14 +1124,10 @@ get_length_from_term_int (StThemeNode *node,
 {
   double value;
   GetFromTermResult result;
-  int scale_factor;
 
   result = get_length_from_term (node, term, use_parent_font, &value);
   if (result == VALUE_FOUND)
-    {
-      g_object_get (node->context, "scale-factor", &scale_factor, NULL);
-      *length = (int) ((value / scale_factor) + 0.5) * scale_factor;
-    }
+    *length = (int) ((value / node->scale_factor) + 0.5) * node->scale_factor;
   return result;
 }
 
@@ -3015,7 +3009,6 @@ StBorderImage *
 st_theme_node_get_border_image (StThemeNode *node)
 {
   int i;
-  int scale_factor;
 
   if (node->border_image_computed)
     return node->border_image;
@@ -3024,7 +3017,6 @@ st_theme_node_get_border_image (StThemeNode *node)
   node->border_image_computed = TRUE;
 
   ensure_properties (node);
-  g_object_get (node->context, "scale-factor", &scale_factor, NULL);
 
   for (i = node->n_properties - 1; i >= 0; i--)
     {
@@ -3129,7 +3121,7 @@ st_theme_node_get_border_image (StThemeNode *node)
 
           node->border_image = st_border_image_new (file,
                                                     border_top, border_right, border_bottom, border_left,
-                                                    scale_factor);
+                                                    node->scale_factor);
 
           g_object_unref (file);