Implement Fl_Labelpad_Group

Which wraps a widget in a group large enough to contain the child widget's
label.

FL/Fl_Labelpad_Group.H

@@ -0,0 +1,65 @@
+
+/*******************************************************************************/
+/* Copyright (C) 2009 Jonathan Moore Liles                                     */
+/*                                                                             */
+/* This program is free software; you can redistribute it and/or modify it     */
+/* under the terms of the GNU General Public License as published by the       */
+/* Free Software Foundation; either version 2 of the License, or (at your      */
+/* option) any later version.                                                  */
+/*                                                                             */
+/* This program is distributed in the hope that it will be useful, but WITHOUT */
+/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or       */
+/* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for   */
+/* more details.                                                               */
+/*                                                                             */
+/* You should have received a copy of the GNU General Public License along     */
+/* with This program; see the file COPYING.  If not,write to the Free Software */
+/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+/*******************************************************************************/
+
+/* wrap a widget in a group as wide as the widget's label. This is
+ * useful when you want to put labeled widgets into a pack */
+
+#include <FL/Fl_Widget.H>
+#include <FL/Fl_Group.H>
+#include <FL/fl_draw.H>
+
+class Fl_Labelpad_Group : public Fl_Group
+{
+public:
+
+    Fl_Labelpad_Group ( Fl_Widget *o ) : Fl_Group( 0, 0, 50, 50, 0 )
+        {
+            resizable( 0 );
+
+            end();
+
+            add( o );
+
+            fl_font( FL_HELVETICA, o->labelsize() );
+
+            int W, H;
+
+            W = fl_width( o->label() );
+            H = fl_height();
+//                    fl_measure( w->label(), H, W );
+
+            // set size to contain widget
+            size( W > o->w() ? W : o->w(), o->h() + H );
+
+            // center widget in group
+            if ( o->align() & FL_ALIGN_TOP )
+                o->position( x() + w() / 2 - (o->w() / 2 ), y() + H );
+            else if ( o->align() & FL_ALIGN_BOTTOM )
+                o->position( x() + w() / 2 - (o->w() / 2 ), y() );
+            else
+            {
+                /* TODO: other alignments */
+            }
+
+        }
+
+    virtual ~Fl_Labelpad_Group ( )
+        {
+        }
+};