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/*
* This file is part of XForms.
*
* XForms is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1, or
* (at your option) any later version.
*
* XForms 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with XForms; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
/*
* This is a crazy demo showing the "use" of changing
* fields in objects.
*
* T.C. Zhao and M. Overmars
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "include/forms.h"
/***************************************
***************************************/
void
move_cb( FL_OBJECT * ob FL_UNUSED_ARG,
long data )
{
static FL_Coord dx = 8,
dy = 8;
FL_OBJECT *but = ( FL_OBJECT * ) data;
FL_Coord x,
y,
w,
h;
fl_get_object_geometry( but, &x, &y, &w, &h );
if ( x + dx < 0 || x + w + dx >= but->form->w )
dx = -dx;
if ( y + dy < 0 || y + h + dy >= but->form->h )
dy = -dy;
x += dx;
y += dy;
fl_set_object_position( but, x, y );
}
/***************************************
***************************************/
int
main( int argc,
char * argv[ ] )
{
FL_FORM *form;
FL_OBJECT *but,
*obj;
fl_initialize( &argc, argv, "FormDemo", 0, 0 );
form = fl_bgn_form( FL_DOWN_BOX, 400, 200 );
but = fl_add_button( FL_NORMAL_BUTTON, 140, 160, 70, 35, "Exit" );
fl_set_object_resize( but, FL_RESIZE_NONE );
obj = fl_add_button( FL_TOUCH_BUTTON, 330, 150, 50, 30, "Move" );
fl_set_object_resize( obj, FL_RESIZE_NONE );
fl_set_object_gravity( obj, FL_SouthEast, FL_SouthEast );
fl_set_object_callback( obj,move_cb,( long ) but );
fl_end_form( );
fl_show_form( form, FL_PLACE_MOUSE | FL_FREE_SIZE, FL_FULLBORDER,
"ObjPos" );
fl_do_forms( );
return 0;
}
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