non/FL/Fl_Labelpad_Group.H

77 lines
2.9 KiB
C++

/*******************************************************************************/
/* 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:
static void measure_label ( Fl_Widget *o, int &W, int &H )
{
W = fl_width( o->label() );
H = fl_height();
}
Fl_Labelpad_Group ( Fl_Widget *o ) : Fl_Group( 0, 0, 50, 50, 0 )
{
resizable( 0 );
end();
add( o );
fl_font( o->labelfont(), o->labelsize() );
int W, H;
measure_label( o, W, H );
// set size to contain widget
if ( o->align() & ( FL_ALIGN_TOP | FL_ALIGN_BOTTOM ) )
size( W > o->w() ? W : o->w(), o->h() + H );
if ( o->align() & ( FL_ALIGN_LEFT | FL_ALIGN_RIGHT ) )
size( o->w() + W, H > o->h() ? H : o->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 if ( o->align() & FL_ALIGN_RIGHT )
o->position( x(), y() );
else if ( o->align() & FL_ALIGN_LEFT )
o->position( x() + W, y() );
else
{
/* TODO: other alignments */
}
}
virtual ~Fl_Labelpad_Group ( )
{
}
};