[gtk+] button: Remove gadget usage

[Matthias Clasen <matthiasc src gnome org>]

commit 6c484ca4f36f4ab8ce5b330e93d954609717bca6
Author: Timm Bäder <mail baedert org>
Date:   Thu May 4 09:36:49 2017 +0200

    button: Remove gadget usage
    
    Can't remove it entirely yet, since GtkCheckButton still uses it

 gtk/gtkbutton.c |   86 ++++++++----------------------------------------------
 1 files changed, 13 insertions(+), 73 deletions(-)
---
diff --git a/gtk/gtkbutton.c b/gtk/gtkbutton.c
index e9ac07d..b08b0f5 100644
--- a/gtk/gtkbutton.c
+++ b/gtk/gtkbutton.c
@@ -151,19 +151,6 @@ static void gtk_button_measure_ (GtkWidget      *widget,
                                  int            *natural,
                                  int            *minimum_baseline,
                                  int            *natural_baseline);
-static void     gtk_button_measure  (GtkCssGadget        *gadget,
-                                     GtkOrientation       orientation,
-                                     int                  for_size,
-                                     int                 *minimum_size,
-                                     int                 *natural_size,
-                                     int                 *minimum_baseline,
-                                     int                 *natural_baseline,
-                                     gpointer             data);
-static void     gtk_button_allocate (GtkCssGadget        *gadget,
-                                     const GtkAllocation *allocation,
-                                     int                  baseline,
-                                     GtkAllocation       *out_clip,
-                                     gpointer             data);
 static void gtk_button_set_child_type (GtkButton *button, guint child_type);
 
 static GParamSpec *props[LAST_PROP] = { NULL, };
@@ -458,8 +445,8 @@ gtk_button_init (GtkButton *button)
 
   priv->gadget = gtk_css_custom_gadget_new_for_node (gtk_widget_get_css_node (GTK_WIDGET (button)),
                                                      GTK_WIDGET (button),
-                                                     gtk_button_measure,
-                                                     gtk_button_allocate,
+                                                     NULL,
+                                                     NULL,
                                                      NULL,
                                                      NULL,
                                                      NULL);
@@ -773,40 +760,15 @@ gtk_button_size_allocate (GtkWidget     *widget,
                          GtkAllocation *allocation)
 {
   GtkButton *button = GTK_BUTTON (widget);
-  GtkButtonPrivate *priv = button->priv;
-  GtkAllocation clip;
-
-  gtk_widget_set_allocation (widget, allocation);
-  gtk_css_gadget_allocate (priv->gadget,
-                           allocation,
-                           gtk_widget_get_allocated_baseline (widget),
-                           &clip);
-
-  gtk_widget_set_clip (widget, &clip);
-}
-
-static void
-gtk_button_allocate (GtkCssGadget        *gadget,
-                     const GtkAllocation *allocation,
-                     int                  baseline,
-                     GtkAllocation       *out_clip,
-                     gpointer             unused)
-{
-  GtkWidget *widget;
+  GtkAllocation clip = *allocation;
   GtkWidget *child;
 
-  widget = gtk_css_gadget_get_owner (gadget);
-
-  *out_clip = *allocation;
-
   child = gtk_bin_get_child (GTK_BIN (widget));
   if (child && gtk_widget_get_visible (child))
     {
-      GtkAllocation clip;
-
-      gtk_widget_size_allocate_with_baseline (child, (GtkAllocation *)allocation, baseline);
+      gtk_widget_size_allocate_with_baseline (child, allocation,
+                                              gtk_widget_get_allocated_baseline (widget));
       gtk_widget_get_clip (child, &clip);
-      gdk_rectangle_union (&clip, out_clip, out_clip);
     }
 }
 
@@ -959,22 +921,16 @@ gtk_button_finish_activate (GtkButton *button,
     gtk_button_clicked (button);
 }
 
-
 static void
-gtk_button_measure (GtkCssGadget   *gadget,
-                   GtkOrientation  orientation,
-                    int             for_size,
-                   int            *minimum,
-                   int            *natural,
-                   int            *minimum_baseline,
-                   int            *natural_baseline,
-                    gpointer        data)
+gtk_button_measure_ (GtkWidget      *widget,
+                     GtkOrientation  orientation,
+                     int             for_size,
+                     int            *minimum,
+                     int            *natural,
+                     int            *minimum_baseline,
+                     int            *natural_baseline)
 {
-  GtkWidget *widget;
-  GtkWidget *child;
-
-  widget = gtk_css_gadget_get_owner (gadget);
-  child = gtk_bin_get_child (GTK_BIN (widget));
+  GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
 
   if (child && gtk_widget_get_visible (child))
     {
@@ -995,22 +951,6 @@ gtk_button_measure (GtkCssGadget   *gadget,
     }
 }
 
-static void
-gtk_button_measure_ (GtkWidget      *widget,
-                     GtkOrientation  orientation,
-                     int             for_size,
-                     int            *minimum,
-                     int            *natural,
-                     int            *minimum_baseline,
-                     int            *natural_baseline)
-{
-  gtk_css_gadget_get_preferred_size (GTK_BUTTON (widget)->priv->gadget,
-                                     orientation,
-                                     for_size,
-                                     minimum, natural,
-                                     minimum_baseline, natural_baseline);
-}
-
 /**
  * gtk_button_set_label:
  * @button: a #GtkButton