[gtk+/wip/baseline2] GtkSpinButton: Support baseline alignment

[Alexander Larsson <alexl src gnome org>]

commit 6b3f27c76c60136bc3d91f9d42528b4dee123c84
Author: Alexander Larsson <alexl redhat com>
Date:   Fri Mar 22 11:32:07 2013 +0100

    GtkSpinButton: Support baseline alignment

 gtk/gtkspinbutton.c |   34 ++++++++++++++++++++++++++++++----
 1 files changed, 30 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkspinbutton.c b/gtk/gtkspinbutton.c
index f05657c..0928d9e 100644
--- a/gtk/gtkspinbutton.c
+++ b/gtk/gtkspinbutton.c
@@ -222,6 +222,12 @@ static void gtk_spin_button_get_preferred_width  (GtkWidget          *widget,
 static void gtk_spin_button_get_preferred_height (GtkWidget          *widget,
                                                   gint               *minimum,
                                                   gint               *natural);
+static void gtk_spin_button_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
+                                                                        gint       width,
+                                                                        gint      *minimum,
+                                                                        gint      *natural,
+                                                                        gint      *minimum_baseline,
+                                                                        gint      *natural_baseline);
 static void gtk_spin_button_size_allocate  (GtkWidget          *widget,
                                             GtkAllocation      *allocation);
 static gint gtk_spin_button_draw           (GtkWidget          *widget,
@@ -309,6 +315,7 @@ gtk_spin_button_class_init (GtkSpinButtonClass *class)
   widget_class->unrealize = gtk_spin_button_unrealize;
   widget_class->get_preferred_width = gtk_spin_button_get_preferred_width;
   widget_class->get_preferred_height = gtk_spin_button_get_preferred_height;
+  widget_class->get_preferred_height_and_baseline_for_width = 
gtk_spin_button_get_preferred_height_and_baseline_for_width;
   widget_class->size_allocate = gtk_spin_button_size_allocate;
   widget_class->draw = gtk_spin_button_draw;
   widget_class->scroll_event = gtk_spin_button_scroll;
@@ -1197,14 +1204,20 @@ gtk_spin_button_get_preferred_width (GtkWidget *widget,
 }
 
 static void
-gtk_spin_button_get_preferred_height (GtkWidget *widget,
-                                      gint      *minimum,
-                                      gint      *natural)
+gtk_spin_button_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
+                                                            gint       width,
+                                                            gint      *minimum,
+                                                            gint      *natural,
+                                                            gint      *minimum_baseline,
+                                                            gint      *natural_baseline)
 {
   GtkSpinButton *spin_button = GTK_SPIN_BUTTON (widget);
   GtkSpinButtonPrivate *priv = spin_button->priv;
 
-  GTK_WIDGET_CLASS (gtk_spin_button_parent_class)->get_preferred_height (widget, minimum, natural);
+  GTK_WIDGET_CLASS (gtk_spin_button_parent_class)->get_preferred_height_and_baseline_for_width (widget, 
width,
+                                                                                               minimum, 
natural,
+                                                                                               
minimum_baseline,
+                                                                                               
natural_baseline);
 
   if (priv->orientation == GTK_ORIENTATION_VERTICAL)
     {
@@ -1216,10 +1229,23 @@ gtk_spin_button_get_preferred_height (GtkWidget *widget,
 
       *minimum += up_panel_height + down_panel_height;
       *natural += up_panel_height + down_panel_height;
+
+      if (minimum_baseline && *minimum_baseline != -1)
+       *minimum_baseline += up_panel_height;
+      if (natural_baseline && *natural_baseline != -1)
+       *natural_baseline += up_panel_height;
     }
 }
 
 static void
+gtk_spin_button_get_preferred_height (GtkWidget *widget,
+                                      gint      *minimum,
+                                      gint      *natural)
+{
+  gtk_spin_button_get_preferred_height_and_baseline_for_width (widget, -1, minimum, natural, NULL, NULL);
+}
+
+static void
 gtk_spin_button_size_allocate (GtkWidget     *widget,
                                GtkAllocation *allocation)
 {