non/Mixer/Meter_Indicator_Module.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.  */
/*******************************************************************************/

#include "Meter_Indicator_Module.H"

#include <FL/Fl.H>
#include <FL/Fl_Value_Slider.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Counter.H>
#include "FL/Fl_Arc_Dial.H"
#include "FL/Fl_Light_Button.H"
#include "FL/Boxtypes.H"
#include <FL/fl_draw.H>
#include "FL/Fl_Labelpad_Group.H"
#include <stdio.h>
#include "Engine/Engine.H"
#include "Chain.H"
#include "DPM.H"
#include "FL/Fl_Scalepack.H"



const float CONTROL_UPDATE_FREQ = 0.1f;



Meter_Indicator_Module::Meter_Indicator_Module ( int W, int H, const char *L )
    : Module ( W, 100, L )
{
    box( FL_NO_BOX );

    _pad = true;
    control = 0;
    control_value = 0;

    add_port( Port( this, Port::INPUT, Port::CONTROL ) );

    dpm_pack = new Fl_Scalepack( x(), y(), w(), h() );
    dpm_pack->type( FL_HORIZONTAL );

    control_value = new float[1];

    end();

    Fl::add_timeout( CONTROL_UPDATE_FREQ, update_cb, this );
}

Meter_Indicator_Module::~Meter_Indicator_Module ( )
{
    if ( control_value )
        delete[] control_value;

    Fl::remove_timeout( update_cb, this );
}



void
Meter_Indicator_Module::update_cb ( void *v )
{
    ((Meter_Indicator_Module*)v)->update_cb();
}

void
Meter_Indicator_Module::update_cb ( void )
{
    Fl::repeat_timeout( CONTROL_UPDATE_FREQ, update_cb, this );

    if ( control_input[0].connected() )
    {
        // A little hack to detect that the connected module's number
        // of control outs has changed.
        Port *p = control_input[0].connected_port();

        if ( dpm_pack->children() != p->hints.dimensions )
        {
            engine->lock();

            dpm_pack->clear();

            control_value = new float[p->hints.dimensions];

            for ( int i = p->hints.dimensions; i--; )
            {

                DPM *dpm = new DPM( x(), y(), w(), h() );
                dpm->type( FL_VERTICAL );
                align( (Fl_Align)(FL_ALIGN_CENTER | FL_ALIGN_INSIDE ) );

                dpm_pack->add( dpm );

                control_value[i] = -70.0f;
                dpm->value( -70.0f );
            }

            engine->unlock();
        }
        else
        {
            for ( int i = 0; i < dpm_pack->children(); ++i )
            {
                ((DPM*)dpm_pack->child( i ))->value( control_value[i] );
            }
        }
    }

//    redraw();
}

void
Meter_Indicator_Module::connect_to ( Port *p )
{
    control_input[0].connect_to( p );

/*     else if ( p->hints.type == Module::Port::Hints::LOGARITHMIC ) */
/*     { */
    {
        DPM *o = new DPM( x(), y(), this->w(), h() );
        o->type( FL_VERTICAL );
        align( (Fl_Align)(FL_ALIGN_CENTER | FL_ALIGN_INSIDE ) );

        dpm_pack->add( o );
    }
}

int
Meter_Indicator_Module::handle ( int m )
{
    return Fl_Group::handle( m );
}



void
Meter_Indicator_Module::process ( void )
{
    if ( control_input[0].connected() )
    {
        Port *p = control_input[0].connected_port();

        for ( int i = 0; i < p->hints.dimensions; ++i )
            control_value[i] = ((float*)control_input[0].buffer())[i];
    }
}