patch_change_dialog.cc

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/*
    Copyright (C) 2010 Paul Davis
    Author: Carl Hetherington <cth@carlh.net>

    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; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include <gtkmm/stock.h>
#include <gtkmm/table.h>

#include <boost/algorithm/string.hpp>

#include "gtkmm2ext/utils.h"

#include "midi++/midnam_patch.h"

#include "ardour/beats_frames_converter.h"
#include "ardour/instrument_info.h"

#include "patch_change_dialog.h"
#include "gui_thread.h"

#include "i18n.h"

using namespace std;
using namespace Gtk;
using namespace Gtkmm2ext;

PatchChangeDialog::PatchChangeDialog (
        const ARDOUR::BeatsFramesConverter*        tc,
        ARDOUR::Session*                           session,
        Evoral::PatchChange<Evoral::Beats> const & patch,
        ARDOUR::InstrumentInfo&                    info,
        const Gtk::BuiltinStockID&                 ok,
        bool                                       allow_delete)
        : ArdourDialog (_("Patch Change"), true)
        , _time_converter (tc)
        , _info (info)
        , _time (X_("patchchangetime"), true, "", true, false)
        , _channel (*manage (new Adjustment (1, 1, 16, 1, 4)))
        , _program (*manage (new Adjustment (1, 1, 128, 1, 16)))
        , _bank (*manage (new Adjustment (1, 1, 16384, 1, 64)))
        , _ignore_signals (false)
{
        Table* t = manage (new Table (4, 2));
        Label* l;
        t->set_spacings (6);
        int r = 0;

        if (_time_converter) {
                
                l = manage (left_aligned_label (_("Time")));
                t->attach (*l, 0, 1, r, r + 1);
                t->attach (_time, 1, 2, r, r + 1);
                ++r;

                _time.set_session (session);
                _time.set_mode (AudioClock::BBT);
                _time.set (_time_converter->to (patch.time ()), true);
        }

        l = manage (left_aligned_label (_("Patch Bank")));
        t->attach (*l, 0, 1, r, r + 1);
        t->attach (_bank_combo, 1, 2, r, r + 1);
        ++r;

        _bank_combo.signal_changed().connect (sigc::mem_fun (*this, &PatchChangeDialog::bank_combo_changed));

        l = manage (left_aligned_label (_("Patch")));
        t->attach (*l, 0, 1, r, r + 1);
        t->attach (_patch_combo, 1, 2, r, r + 1);
        ++r;
        
        _patch_combo.signal_changed().connect (sigc::mem_fun (*this, &PatchChangeDialog::patch_combo_changed));

        l = manage (left_aligned_label (_("Channel")));
        t->attach (*l, 0, 1, r, r + 1);
        t->attach (_channel, 1, 2, r, r + 1);
        ++r;

        _channel.set_value (patch.channel() + 1);
        _channel.signal_changed().connect (sigc::mem_fun (*this, &PatchChangeDialog::channel_changed));

        l = manage (left_aligned_label (_("Program")));
        t->attach (*l, 0, 1, r, r + 1);
        t->attach (_program, 1, 2, r, r + 1);
        ++r;

        _program.set_value (patch.program () + 1);
        _program.signal_changed().connect (sigc::mem_fun (*this, &PatchChangeDialog::program_changed));

        l = manage (left_aligned_label (_("Bank")));
        t->attach (*l, 0, 1, r, r + 1);
        t->attach (_bank, 1, 2, r, r + 1);
        ++r;

        _bank.set_value (patch.bank() + 1);
        _bank.signal_changed().connect (sigc::mem_fun (*this, &PatchChangeDialog::bank_changed));

        get_vbox()->add (*t);

        add_button (Stock::CANCEL, RESPONSE_CANCEL);
        add_button (ok, RESPONSE_ACCEPT);
        if (allow_delete) {
                add_button (Gtk::StockID(GTK_STOCK_DELETE), RESPONSE_REJECT);
        }
        set_default_response (RESPONSE_ACCEPT);

        fill_bank_combo ();
        set_active_bank_combo ();
        bank_combo_changed ();

        _info.Changed.connect (_info_changed_connection, invalidator (*this), 
                               boost::bind (&PatchChangeDialog::instrument_info_changed, this), gui_context());

        show_all ();
}

void
PatchChangeDialog::instrument_info_changed ()
{
        _bank_combo.clear ();
        _patch_combo.clear ();
        fill_bank_combo ();
        fill_patch_combo ();
}

Evoral::PatchChange<Evoral::Beats>
PatchChangeDialog::patch () const
{
        Evoral::Beats t = Evoral::Beats();

        if (_time_converter) {
                t = _time_converter->from (_time.current_time ());
        }

        return Evoral::PatchChange<Evoral::Beats> (
                t,
                _channel.get_value_as_int() - 1,
                _program.get_value_as_int() - 1,
                _bank.get_value_as_int() - 1
                );
}

void
PatchChangeDialog::fill_bank_combo ()
{
        _bank_combo.clear ();

        boost::shared_ptr<MIDI::Name::ChannelNameSet> cns = _info.get_patches (_channel.get_value_as_int() - 1);

        if (!cns) {
                return;
        }

        for (MIDI::Name::ChannelNameSet::PatchBanks::const_iterator i = cns->patch_banks().begin(); i != cns->patch_banks().end(); ++i) {
                string n = (*i)->name ();
                boost::replace_all (n, "_", " ");
                _bank_combo.append_text (n);
        }
}

void
PatchChangeDialog::set_active_bank_combo ()
{
        _current_patch_bank.reset ();
        
        boost::shared_ptr<MIDI::Name::ChannelNameSet> cns = _info.get_patches (_channel.get_value_as_int() - 1);

        if (!cns) {
                return;
        }

        for (MIDI::Name::ChannelNameSet::PatchBanks::const_iterator i = cns->patch_banks().begin(); i != cns->patch_banks().end(); ++i) {

                string n = (*i)->name ();
                boost::replace_all (n, "_", " ");

                if ((*i)->number() == _bank.get_value () - 1) {
                        _current_patch_bank = *i;
                        _ignore_signals = true;
                        _bank_combo.set_active_text (n);
                        _ignore_signals = false;
                        return;
                }
        }

        _ignore_signals = true;
        _bank_combo.set_active (-1);
        _ignore_signals = false;
}

void
PatchChangeDialog::bank_combo_changed ()
{
        if (_ignore_signals) {
                return;
        }
        
        _current_patch_bank.reset ();

        boost::shared_ptr<MIDI::Name::ChannelNameSet> cns = _info.get_patches (_channel.get_value_as_int() - 1);

        if (!cns) {
                return;
        }

        for (MIDI::Name::ChannelNameSet::PatchBanks::const_iterator i = cns->patch_banks().begin(); i != cns->patch_banks().end(); ++i) {
                string n = (*i)->name ();
                boost::replace_all (n, "_", " ");
                if (n == _bank_combo.get_active_text()) {
                        _current_patch_bank = *i;
                }
        }

        if (_current_patch_bank == 0) {
                return;
        }

        /* Reflect */

        fill_patch_combo ();
        set_active_patch_combo ();

        _ignore_signals = true;
        _bank.set_value (_current_patch_bank->number() + 1);
        _ignore_signals = false;
}

void
PatchChangeDialog::fill_patch_combo ()
{
        _patch_combo.clear ();

        if (_current_patch_bank == 0) {
                return;
        }

        const MIDI::Name::PatchNameList& patches = _current_patch_bank->patch_name_list ();
        for (MIDI::Name::PatchNameList::const_iterator j = patches.begin(); j != patches.end(); ++j) {
                string n = (*j)->name ();
                boost::replace_all (n, "_", " ");
                _patch_combo.append_text (n);
        }
}

void
PatchChangeDialog::set_active_patch_combo ()
{
        if (_ignore_signals) {
                return;
        }

        if (_current_patch_bank == 0) {
                _ignore_signals = true;
                _patch_combo.set_active (-1);
                _ignore_signals = false;
                return;
        }
        
        const MIDI::Name::PatchNameList& patches = _current_patch_bank->patch_name_list ();
        for (MIDI::Name::PatchNameList::const_iterator j = patches.begin(); j != patches.end(); ++j) {
                string n = (*j)->name ();
                boost::replace_all (n, "_", " ");

                MIDI::Name::PatchPrimaryKey const & key = (*j)->patch_primary_key ();
                if (key.program() == _program.get_value() - 1) {
                        _ignore_signals = true;
                        _patch_combo.set_active_text (n);
                        _ignore_signals = false;
                        return;
                }
        }

        _ignore_signals = true;
        _patch_combo.set_active (-1);
        _ignore_signals = false;
}       

void
PatchChangeDialog::patch_combo_changed ()
{
        if (_ignore_signals || _current_patch_bank == 0) {
                return;
        }

        const MIDI::Name::PatchNameList& patches = _current_patch_bank->patch_name_list ();

        for (MIDI::Name::PatchNameList::const_iterator j = patches.begin(); j != patches.end(); ++j) {
                string n = (*j)->name ();
                boost::replace_all (n, "_", " ");

                if (n == _patch_combo.get_active_text ()) {
                        _ignore_signals = true;
                        _program.set_value ((*j)->program_number() + 1);
                        _ignore_signals = false;
                        break;
                }
        }
}

void
PatchChangeDialog::channel_changed ()
{
        fill_bank_combo ();
        set_active_bank_combo ();
        fill_patch_combo ();
        set_active_patch_combo ();
}

void
PatchChangeDialog::program_changed ()
{
        if (_ignore_signals) {
                return;
        }

        set_active_patch_combo ();
}

void
PatchChangeDialog::bank_changed ()
{
        if (_ignore_signals) {
                return;
        }

        set_active_bank_combo ();
        fill_patch_combo ();
        set_active_patch_combo ();
}