[gtk+] radiobutton: Port radio buttons to gadgets

[Matthias Clasen <matthiasc src gnome org>]

commit a52c3a3db9e1c5e141fa4385ec27bdaa8d7b9b94
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Dec 14 21:43:20 2015 -0500

    radiobutton: Port radio buttons to gadgets
    
    This was already mostly done by inheritance from GtkCheckButton.
    To complete it, stop using the draw_indicator vfunc for radio
    buttons, and instead make the indicator gadget draw either a
    check or radio.

 gtk/gtkcheckbutton.c |   29 +++++++++++---------------
 gtk/gtkradiobutton.c |   54 --------------------------------------------------
 2 files changed, 12 insertions(+), 71 deletions(-)
---
diff --git a/gtk/gtkcheckbutton.c b/gtk/gtkcheckbutton.c
index 18c3d0b..0f7f223 100644
--- a/gtk/gtkcheckbutton.c
+++ b/gtk/gtkcheckbutton.c
@@ -104,8 +104,6 @@ static gboolean gtk_check_button_draw            (GtkWidget           *widget,
                                                  cairo_t             *cr);
 static void gtk_check_button_draw_indicator      (GtkCheckButton      *check_button,
                                                  cairo_t             *cr);
-static void gtk_real_check_button_draw_indicator (GtkCheckButton      *check_button,
-                                                 cairo_t             *cr);
 
 static void     gtk_check_button_measure       (GtkCssGadget        *gadget,
                                                 GtkOrientation       orientation,
@@ -215,8 +213,6 @@ gtk_check_button_class_init (GtkCheckButtonClass *class)
   widget_class->state_flags_changed = gtk_check_button_state_flags_changed;
   widget_class->direction_changed = gtk_check_button_direction_changed;
 
-  class->draw_indicator = gtk_real_check_button_draw_indicator;
-
   gtk_widget_class_install_style_property (widget_class,
                                           g_param_spec_int ("indicator-size",
                                                             P_("Indicator Size"),
@@ -787,27 +783,19 @@ gtk_check_button_draw (GtkWidget *widget,
   return FALSE;
 }
 
-
 static void
 gtk_check_button_draw_indicator (GtkCheckButton *check_button,
                                 cairo_t        *cr)
 {
   GtkCheckButtonClass *class = GTK_CHECK_BUTTON_GET_CLASS (check_button);
+  GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (check_button);
 
   if (class->draw_indicator)
     class->draw_indicator (check_button, cr);
+  else
+    gtk_css_gadget_draw (priv->indicator_gadget, cr);
 }
 
-static void
-gtk_real_check_button_draw_indicator (GtkCheckButton *check_button,
-                                     cairo_t        *cr)
-{
-  GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (check_button);
-
-  gtk_css_gadget_draw (priv->indicator_gadget, cr);
-}
-
-
 static gboolean
 gtk_check_button_render_check (GtkCssGadget *gadget,
                                cairo_t      *cr,
@@ -820,13 +808,20 @@ gtk_check_button_render_check (GtkCssGadget *gadget,
   GtkWidget *widget;
   GtkStyleContext *context;
   GtkCheckButtonPrivate *priv;
+  GtkCssNode *css_node;
 
   widget = gtk_css_gadget_get_owner (gadget);
   priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
   context = gtk_widget_get_style_context (widget);
 
-  gtk_style_context_save_to_node (context, gtk_css_gadget_get_node (priv->indicator_gadget));
-  gtk_render_check (context, cr, x, y, width, height);
+  css_node = gtk_css_gadget_get_node (priv->indicator_gadget);
+  gtk_style_context_save_to_node (context, css_node);
+
+  if (strcmp (gtk_css_node_get_name (css_node), "check") == 0)
+    gtk_render_check (context, cr, x, y, width, height);
+  else
+    gtk_render_option (context, cr, x, y, width, height);
+
   gtk_style_context_restore (context);
 
   return FALSE;
diff --git a/gtk/gtkradiobutton.c b/gtk/gtkradiobutton.c
index 148038b..53191a4 100644
--- a/gtk/gtkradiobutton.c
+++ b/gtk/gtkradiobutton.c
@@ -145,8 +145,6 @@ static void     gtk_radio_button_destroy        (GtkWidget           *widget);
 static gboolean gtk_radio_button_focus          (GtkWidget           *widget,
                                                 GtkDirectionType     direction);
 static void     gtk_radio_button_clicked        (GtkButton           *button);
-static void     gtk_radio_button_draw_indicator (GtkCheckButton      *check_button,
-                                                cairo_t             *cr);
 static void     gtk_radio_button_set_property   (GObject             *object,
                                                 guint                prop_id,
                                                 const GValue        *value,
@@ -165,13 +163,11 @@ gtk_radio_button_class_init (GtkRadioButtonClass *class)
 {
   GObjectClass *gobject_class;
   GtkButtonClass *button_class;
-  GtkCheckButtonClass *check_button_class;
   GtkWidgetClass *widget_class;
 
   gobject_class = G_OBJECT_CLASS (class);
   widget_class = (GtkWidgetClass*) class;
   button_class = (GtkButtonClass*) class;
-  check_button_class = (GtkCheckButtonClass*) class;
 
   gobject_class->set_property = gtk_radio_button_set_property;
   gobject_class->get_property = gtk_radio_button_get_property;
@@ -195,8 +191,6 @@ gtk_radio_button_class_init (GtkRadioButtonClass *class)
 
   button_class->clicked = gtk_radio_button_clicked;
 
-  check_button_class->draw_indicator = gtk_radio_button_draw_indicator;
-
   class->group_changed = NULL;
 
   /**
@@ -799,51 +793,3 @@ gtk_radio_button_clicked (GtkButton *button)
 
   g_object_unref (button);
 }
-
-static void
-gtk_radio_button_draw_indicator (GtkCheckButton *check_button,
-                                cairo_t        *cr)
-{
-  GtkAllocation allocation;
-  GtkWidget *widget;
-  GtkButton *button;
-  GtkStyleContext *context;
-  gint x, y;
-  gint indicator_size, indicator_spacing;
-  gint baseline;
-  guint border_width;
-  GtkCssNode *css_node;
-
-  widget = GTK_WIDGET (check_button);
-  button = GTK_BUTTON (check_button);
-  context = gtk_widget_get_style_context (widget);
-
-  border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
-  _gtk_check_button_get_props (check_button, &indicator_size, &indicator_spacing);
-
-  gtk_widget_get_allocation (widget, &allocation);
-  baseline = gtk_widget_get_allocated_baseline (widget);
-
-  x = indicator_spacing + border_width;
-  if (baseline == -1)
-    y = (allocation.height - indicator_size) / 2;
-  else
-    y = CLAMP (baseline - indicator_size * button->priv->baseline_align,
-              0, allocation.height - indicator_size);
-
-  if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
-    x = allocation.width - (indicator_size + x);
-
-  css_node = gtk_check_button_get_indicator_node (check_button);
-  gtk_style_context_save_to_node (context, css_node);
-
-  gtk_render_background (context, cr,
-                         border_width, border_width,
-                         allocation.width - (2 * border_width),
-                         allocation.height - (2 * border_width));
-
-  gtk_render_option (context, cr,
-                     x, y, indicator_size, indicator_size);
-
-  gtk_style_context_restore (context);
-}