/*
 * 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.  If not, see <http://www.gnu.org/licenses/>.
 */


/**
 * \file sp_slider.c
 *
 *  This file is part of XForms package
 *  Copyright (c) 1996-2002  T.C. Zhao and Mark Overmars
 *  All rights reserved.
 *
 * Settting slider class specific attributes.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "include/forms.h"
#include "fd_main.h"
#include "fd_spec.h"
#include "spec/slider_spec.h"

extern FD_sliderattrib *create_form_sliderattrib( void );

static FD_sliderattrib *sl_attrib;
static SuperSPEC *slider_spec;
static void show_spec( SuperSPEC * );


/***************************************
 ***************************************/

void *
get_slider_spec_fdform( void )
{
    if ( ! sl_attrib )
    {
        sl_attrib = create_form_sliderattrib( );

        setup_how_return_menu( sl_attrib->returnsetting );
        fl_set_menu_item_mode( sl_attrib->returnsetting, 5,
                               FL_PUP_BOX | FL_PUP_GRAY );
        fl_set_menu_item_mode( sl_attrib->returnsetting, 6,
                               FL_PUP_BOX | FL_PUP_GRAY );
    }
    return sl_attrib;
}


/***************************************
 ***************************************/

void
slider_spec_restore( FL_OBJECT * ob    FL_UNUSED_ARG,
                     long        data  FL_UNUSED_ARG )
{
    FL_OBJECT *edit_obj = sl_attrib->vdata;

    superspec_to_spec( edit_obj );
    show_spec( get_superspec( edit_obj ) );
    redraw_the_form( 0 );
}


/***************************************
 ***************************************/

static void
show_spec( SuperSPEC * spec )
{
    set_finput_value( sl_attrib->minval, spec->min, spec->prec );
    set_finput_value( sl_attrib->maxval, spec->max, spec->prec );
    set_finput_value( sl_attrib->initial_val, spec->val, spec->prec );
    set_finput_value( sl_attrib->slsize, spec->slsize, 2 );
    set_finput_value( sl_attrib->step, spec->step, 3 );
    set_finput_value( sl_attrib->ldelta, spec->ldelta, -1 );
    set_finput_value( sl_attrib->rdelta, spec->rdelta, -1 );

    fl_set_counter_value( sl_attrib->prec, spec->prec );

    reset_how_return_menu( sl_attrib->returnsetting, spec->how_return );
}


#define is_vert(t)     (    t == FL_VERT_SLIDER          \
                         || t == FL_VERT_NICE_SLIDER     \
                         || t == FL_VERT_BROWSER_SLIDER  \
                         || t == FL_VERT_FILL_SLIDER )


/***************************************
 ***************************************/

int
set_slider_attrib( FL_OBJECT * ob )
{
    sl_attrib->vdata = ob;
    slider_spec = get_superspec( ob );

    fl_freeze_form( sl_attrib->sliderattrib );

    if ( ob->objclass == FL_VALSLIDER )
        fl_show_object( sl_attrib->prec );
    else
        fl_hide_object( sl_attrib->prec );

    fl_set_counter_step( sl_attrib->prec, 1, 2 );
    fl_set_counter_precision( sl_attrib->prec, 0 );
    fl_set_counter_bounds( sl_attrib->prec, 0, 6 );
    fl_redraw_object( sl_attrib->prec );   /* need this to draw counter fully */

    if ( is_vert( ob->type ) )
    {
        fl_set_object_label( sl_attrib->minval, "Value at top" );
        fl_set_object_label( sl_attrib->maxval, "Value at bottom" );
    }
    else
    {
        fl_set_object_label( sl_attrib->minval, "Value at left" );
        fl_set_object_label( sl_attrib->maxval, "Value at right" );
    }

    show_spec( slider_spec );

    fl_unfreeze_form( sl_attrib->sliderattrib );

    return 0;
}


/***************************************
 ***************************************/

void
emit_slider_code( FILE      * fp,
                  FL_OBJECT * ob )
{
    FL_OBJECT *defobj;
    SuperSPEC *sp,
              *defsp;

    if ( ob->objclass != FL_SLIDER && ob->objclass != FL_VALSLIDER )
        return;

    /* create a default object */

    defobj = ( ob->objclass == FL_SLIDER ?
               fl_create_slider : fl_create_valslider )
                 ( ob->type, 0, 0, 0, 0, "");

    defsp = get_superspec( defobj );
    sp = get_superspec( ob );

    if ( sp->prec != defsp->prec )
        fprintf( fp, "    fl_set_slider_precision( obj, %d );\n", sp->prec );

    if ( sp->min != defsp->min || sp->max != defsp->max )
        fprintf( fp, "    fl_set_slider_bounds( obj, %g, %g );\n",
                 sp->min, sp->max );

    if ( sp->val != defsp->val )
        fprintf( fp, "    fl_set_slider_value( obj, %g );\n", sp->val );

    if ( sp->slsize != defsp->slsize )
        fprintf( fp, "    fl_set_slider_size( obj, %.2f );\n", sp->slsize );

    if ( sp->step != defsp->step )
        fprintf( fp, "    fl_set_slider_step( obj, %g );\n", sp->step );

    if ( sp->ldelta != defsp->ldelta || sp->rdelta != defsp->rdelta )
        fprintf( fp, "    fl_set_slider_increment( obj, %g, %g );\n",
                 sp->ldelta, sp->rdelta );
}


/***************************************
 ***************************************/

void
save_slider_attrib( FILE      * fp,
                    FL_OBJECT * ob )
{
    FL_OBJECT *defobj;
    SuperSPEC *defsp, *sp;

    if ( ob->objclass != FL_SLIDER && ob->objclass != FL_VALSLIDER )
        return;

    /* create a default object */

    defobj = ( ob->objclass == FL_SLIDER ?
               fl_create_slider : fl_create_valslider )
                 ( ob->type, 0, 0, 0, 0, "" );

    defsp = get_superspec( defobj );
    sp = get_superspec( ob );

    if ( sp->min != defsp->min || sp->max != defsp->max )
        fprintf( fp, "    bounds: %g %g\n", sp->min, sp->max );
    if ( sp->prec != defsp->prec )
        fprintf( fp, "    precision: %d\n", sp->prec );
    if ( sp->val != defsp->val )
        fprintf( fp, "    value: %g\n", sp->val );
    if ( sp->ldelta != defsp->ldelta || sp->rdelta != defsp->rdelta )
        fprintf( fp, "    increment: %g %g\n", sp->ldelta, sp->rdelta );
    if ( sp->slsize != defsp->slsize )
        fprintf( fp, "    slsize: %.2f\n", sp->slsize );
    if ( sp->step != defsp->step )
        fprintf( fp, "    step: %g\n", sp->step );
}


/***************************************
 ***************************************/

void
adjust_precision( FL_OBJECT * ob,
                  long        data  FL_UNUSED_ARG )
{
    double p = fl_get_counter_value( ob );

    fl_set_slider_precision( sl_attrib->vdata, p );
    if ( auto_apply )
        redraw_the_form( 0 );
}


/***************************************
 ***************************************/

void
minmax_change( FL_OBJECT * ob    FL_UNUSED_ARG,
               long        data  FL_UNUSED_ARG )
{
    double min = get_finput_value( sl_attrib->minval );
    double max = get_finput_value( sl_attrib->maxval );

    fl_set_slider_bounds( sl_attrib->vdata, min, max );
    if ( auto_apply )
        redraw_the_form( 0 );
}


/***************************************
 ***************************************/

void
slsize_change( FL_OBJECT * ob    FL_UNUSED_ARG,
               long        data  FL_UNUSED_ARG )
{
    double slsize = get_finput_value( sl_attrib->slsize );

    fl_set_slider_size( sl_attrib->vdata, slsize );
    if ( auto_apply )
        redraw_the_form( 0 );
}


/***************************************
 ***************************************/

void
step_change( FL_OBJECT * ob    FL_UNUSED_ARG,
             long        data  FL_UNUSED_ARG )
{
    double step = get_finput_value( sl_attrib->step );

    fl_set_slider_step( sl_attrib->vdata, step );
    if ( auto_apply )
        redraw_the_form( 0 );
}


/***************************************
 ***************************************/

void
increment_change( FL_OBJECT * ob    FL_UNUSED_ARG,
                  long        data  FL_UNUSED_ARG )
{
    double l = get_finput_value( sl_attrib->ldelta );
    double r = get_finput_value( sl_attrib->rdelta );

    fl_set_slider_increment( sl_attrib->vdata, l, r );
}


/***************************************
 ***************************************/

void
initialvalue_change( FL_OBJECT * ob    FL_UNUSED_ARG,
                     long        data  FL_UNUSED_ARG )
{
    double val = get_finput_value( sl_attrib->initial_val );

    fl_set_slider_value( sl_attrib->vdata, val );
    slider_spec->val = fl_get_slider_value( sl_attrib->vdata );
    set_finput_value( sl_attrib->initial_val, slider_spec->val,
                      slider_spec->prec );
    if ( auto_apply )
        redraw_the_form( 0 );
}


/***************************************
 ***************************************/

void
returnsetting_change( FL_OBJECT * ob    FL_UNUSED_ARG,
                      long        data  FL_UNUSED_ARG )
{
    handle_how_return_changes( sl_attrib->returnsetting,
                               sl_attrib->vdata );
}


#include "spec/slider_spec.c"


/*
 * Local variables:
 * tab-width: 4
 * indent-tabs-mode: nil
 * End:
 */