adjustment: Add private gtk_adjustment_get_target_value() method

This call returns either the target value if there is an ongoing animation,
or the current value if there is no animation.

2 files changed, 12 insertions, 0 deletions

diff --git a/gtk/gtkadjustment.c b/gtk/gtkadjustment.c
index 8cab120dc2..6ae5405ab4 100644
--- a/gtk/gtkadjustment.c
+++ b/gtk/gtkadjustment.c
@@ -428,6 +428,17 @@ gtk_adjustment_get_value (GtkAdjustment *adjustment)
   return adjustment->priv->value;
 }
 
+gdouble
+gtk_adjustment_get_target_value (GtkAdjustment *adjustment)
+{
+  g_return_val_if_fail (GTK_IS_ADJUSTMENT (adjustment), 0.0);
+
+  if (adjustment->priv->tick_id)
+    return adjustment->priv->target;
+  else
+    return adjustment->priv->value;
+}
+
 static void
 adjustment_set_value (GtkAdjustment *adjustment,
                       gdouble        value)
diff --git a/gtk/gtkadjustmentprivate.h b/gtk/gtkadjustmentprivate.h
index b36f13fa75..72ecaff433 100644
--- a/gtk/gtkadjustmentprivate.h
+++ b/gtk/gtkadjustmentprivate.h
@@ -29,6 +29,7 @@ void gtk_adjustment_enable_animation (GtkAdjustment *adjustment,
                                       guint          duration);
 void gtk_adjustment_animate_to_value (GtkAdjustment *adjustment,
                                       gdouble        value);
+gdouble gtk_adjustment_get_target_value (GtkAdjustment *adjustment);
 
 G_END_DECLS