audiomixerwindow.cpp

LINUX下的混音软件

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */

/*
    Rosegarden
    A MIDI and audio sequencer and musical notation editor.
 
    This program is Copyright 2000-2007
        Guillaume Laurent   <[e-mail]>,
        Chris Cannam        <[e-mail]>,
        Richard Bown        <[e-mail]>
 
    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
    Bown to claim authorship of this work have been asserted.
 
    Other copyrights also apply to some parts of this work.  Please
    see the AUTHORS file and individual file headers for details.
 
    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.  See the file
    COPYING included with this distribution for more information.
*/


#include "AudioMixerWindow.h"
#include <qlayout.h>
#include <kapplication.h>

#include "AudioPlugin.h"
#include "AudioPluginManager.h"
#include "MixerWindow.h"
#include "StudioControl.h"
#include "sound/Midi.h"
#include "misc/Debug.h"
#include "gui/application/RosegardenDCOP.h"
#include "base/AudioLevel.h"
#include "base/AudioPluginInstance.h"
#include "base/Composition.h"
#include "base/Device.h"
#include "base/Instrument.h"
#include "base/MidiProgram.h"
#include "base/Studio.h"
#include "document/RosegardenGUIDoc.h"
#include "gui/editors/notation/NotePixmapFactory.h"
#include "gui/general/GUIPalette.h"
#include "gui/seqmanager/SequencerMapper.h"
#include "gui/seqmanager/SequenceManager.h"
#include "gui/widgets/AudioRouteMenu.h"
#include "gui/widgets/AudioVUMeter.h"
#include "gui/widgets/Fader.h"
#include "gui/widgets/Rotary.h"
#include "gui/widgets/VUMeter.h"
#include "sound/MappedCommon.h"
#include "sound/MappedEvent.h"
#include "sound/MappedStudio.h"
#include <klocale.h>
#include <kstddirs.h>
#include <kaction.h>
#include <kglobal.h>
#include <kmainwindow.h>
#include <kstdaction.h>
#include <qaccel.h>
#include <qcolor.h>
#include <qfont.h>
#include <qframe.h>
#include <qhbox.h>
#include <qiconset.h>
#include <qlabel.h>
#include <qobject.h>
#include <qpalette.h>
#include <qpixmap.h>
#include <qpushbutton.h>
#include <qstring.h>
#include <qtooltip.h>
#include <qvbox.h>
#include <qwidget.h>


namespace Rosegarden
{

// We define these such that the default of no-bits-set for the
// studio's mixer display options produces the most sensible result
static const unsigned int MIXER_OMIT_FADERS            = 1 << 0;
static const unsigned int MIXER_OMIT_SUBMASTERS        = 1 << 1;
static const unsigned int MIXER_OMIT_PLUGINS           = 1 << 2;
static const unsigned int MIXER_SHOW_UNASSIGNED_FADERS = 1 << 3;
static const unsigned int MIXER_OMIT_SYNTH_FADERS      = 1 << 4;


AudioMixerWindow::AudioMixerWindow(QWidget *parent,
                                   RosegardenGUIDoc *document):
        MixerWindow(parent, document),
        m_mainBox (0)
{
    populate();

    KStdAction::close(this,
                      SLOT(slotClose()),
                      actionCollection());

    QIconSet icon = QIconSet(NotePixmapFactory::toQPixmap(NotePixmapFactory::makeToolbarPixmap
                             ("transport-play")));
    new KAction(i18n("&Play"), icon, Key_Enter, this,
                SIGNAL(play()), actionCollection(), "play");

    icon = QIconSet(NotePixmapFactory::toQPixmap(NotePixmapFactory::makeToolbarPixmap
                    ("transport-stop")));
    new KAction(i18n("&Stop"), icon, Key_Insert, this,
                SIGNAL(stop()), actionCollection(), "stop");

    icon = QIconSet(NotePixmapFactory::toQPixmap(NotePixmapFactory::makeToolbarPixmap
                    ("transport-rewind")));
    new KAction(i18n("Re&wind"), icon, Key_End, this,
                SIGNAL(rewindPlayback()), actionCollection(),
                "playback_pointer_back_bar");

    icon = QIconSet(NotePixmapFactory::toQPixmap(NotePixmapFactory::makeToolbarPixmap
                    ("transport-ffwd")));
    new KAction(i18n("&Fast Forward"), icon, Key_PageDown, this,
                SIGNAL(fastForwardPlayback()), actionCollection(),
                "playback_pointer_forward_bar");

    icon = QIconSet(NotePixmapFactory::toQPixmap(NotePixmapFactory::makeToolbarPixmap
                    ("transport-rewind-end")));
    new KAction(i18n("Rewind to &Beginning"), icon, 0, this,
                SIGNAL(rewindPlaybackToBeginning()), actionCollection(),
                "playback_pointer_start");

    icon = QIconSet(NotePixmapFactory::toQPixmap(NotePixmapFactory::makeToolbarPixmap
                    ("transport-ffwd-end")));
    new KAction(i18n("Fast Forward to &End"), icon, 0, this,
                SIGNAL(fastForwardPlaybackToEnd()), actionCollection(),
                "playback_pointer_end");

    icon = QIconSet(NotePixmapFactory::toQPixmap(NotePixmapFactory::makeToolbarPixmap
                    ("transport-record")));
    new KAction(i18n("&Record"), icon, 0, this,
                SIGNAL(record()), actionCollection(),
                "record");

    icon = QIconSet(NotePixmapFactory::toQPixmap(NotePixmapFactory::makeToolbarPixmap
                    ("transport-panic")));
    new KAction(i18n("Panic"), icon, Key_P + CTRL + ALT, this,
                SIGNAL(panic()), actionCollection(),
                "panic");

    unsigned int mixerOptions = m_studio->getMixerDisplayOptions();

    (new KToggleAction(i18n("Show Audio &Faders"), 0, this,
                       SLOT(slotToggleFaders()), actionCollection(),
                       "show_audio_faders"))->setChecked
    (!(mixerOptions & MIXER_OMIT_FADERS));

    (new KToggleAction(i18n("Show Synth &Faders"), 0, this,
                       SLOT(slotToggleSynthFaders()), actionCollection(),
                       "show_synth_faders"))->setChecked
    (!(mixerOptions & MIXER_OMIT_SYNTH_FADERS));

    (new KToggleAction(i18n("Show &Submasters"), 0, this,
                       SLOT(slotToggleSubmasters()), actionCollection(),
                       "show_audio_submasters"))->setChecked
    (!(mixerOptions & MIXER_OMIT_SUBMASTERS));

    (new KToggleAction(i18n("Show &Plugin Buttons"), 0, this,
                       SLOT(slotTogglePluginButtons()), actionCollection(),
                       "show_plugin_buttons"))->setChecked
    (!(mixerOptions & MIXER_OMIT_PLUGINS));

    (new KToggleAction(i18n("Show &Unassigned Faders"), 0, this,
                       SLOT(slotToggleUnassignedFaders()), actionCollection(),
                       "show_unassigned_faders"))->setChecked
    (mixerOptions & MIXER_SHOW_UNASSIGNED_FADERS);

    KRadioAction *action = 0;

    for (int i = 1; i <= 16; i *= 2) {
        action =
            new KRadioAction(i18n("1 Input", "%n Inputs", i),
                             0, this,
                             SLOT(slotSetInputCountFromAction()), actionCollection(),
                             QString("inputs_%1").arg(i));
        action->setExclusiveGroup("inputs");
        if (i == int(m_studio->getRecordIns().size()))
            action->setChecked(true);
    }

    action = new KRadioAction
             (i18n("No Submasters"),
              0, this,
              SLOT(slotSetSubmasterCountFromAction()), actionCollection(),
              QString("submasters_0"));
    action->setExclusiveGroup("submasters");
    action->setChecked(true);

    for (int i = 2; i <= 8; i *= 2) {
        action = new KRadioAction
                 (i18n("1 Submaster", "%n Submasters", i),
                  0, this,
                  SLOT(slotSetSubmasterCountFromAction()), actionCollection(),
                  QString("submasters_%1").arg(i));
        action->setExclusiveGroup("submasters");
        if (i == int(m_studio->getBusses().size()) - 1)
            action->setChecked(true);
    }

    createGUI("mixer.rc");
}

AudioMixerWindow::~AudioMixerWindow()
{
    RG_DEBUG << "AudioMixerWindow::~AudioMixerWindow\n";
    depopulate();
}

void
AudioMixerWindow::depopulate()
{
    if (!m_mainBox)
        return ;

    // All the widgets will be deleted when the main box goes,
    // except that we need to delete the AudioRouteMenus first
    // because they aren't actually widgets but do contain them

    for (FaderMap::iterator i = m_faders.begin();
            i != m_faders.end(); ++i) {
        delete i->second.m_input;
        delete i->second.m_output;
    }

    m_faders.clear();
    m_submasters.clear();

    delete m_mainBox;
    m_mainBox = 0;
}

void
AudioMixerWindow::populate()
{
    if (m_mainBox) {

        depopulate();

    } else {

        m_surroundBox = new QHBox(this);
        setCentralWidget(m_surroundBox);
    }

    QFont font;
    font.setPointSize(font.pointSize() * 8 / 10);
    font.setBold(false);
    setFont(font);

    QFont boldFont(font);
    boldFont.setBold(true);

    m_mainBox = new QFrame(m_surroundBox);

    InstrumentList instruments = m_studio->getPresentationInstruments();
    BussList busses = m_studio->getBusses();

    QString pixmapDir = KGlobal::dirs()->findResource("appdata", "pixmaps/");
    m_monoPixmap.load(QString("%1/misc/mono.xpm").arg(pixmapDir));
    m_stereoPixmap.load(QString("%1/misc/stereo.xpm").arg(pixmapDir));

    // Total cols: is 2 for each fader, submaster or master, plus 1
    // for each spacer.
    QGridLayout *mainLayout = new QGridLayout
                              (m_mainBox, (instruments.size() + busses.size()) * 3, 7);

    setCaption(i18n("Audio Mixer"));

    int count = 1;
    int col = 0;

    unsigned int mixerOptions = m_studio->getMixerDisplayOptions();

    bool showUnassigned = (mixerOptions & MIXER_SHOW_UNASSIGNED_FADERS);

    for (InstrumentList::iterator i = instruments.begin();
            i != instruments.end(); ++i) {

        if ((*i)->getType() != Instrument::Audio &&
                (*i)->getType() != Instrument::SoftSynth)
            continue;

        FaderRec rec;

        if (!showUnassigned) {
            // Do any tracks use this instrument?
            if (!isInstrumentAssigned((*i)->getId())) {
                continue;
            }
        }
        rec.m_populated = true;

        if ((*i)->getType() == Instrument::Audio) {
            rec.m_input = new AudioRouteMenu(m_mainBox,
                                             AudioRouteMenu::In,
                                             AudioRouteMenu::Compact,
                                             m_studio, *i);
            QToolTip::add
                (rec.m_input->getWidget(), i18n("Record input source"));
            rec.m_input->getWidget()->setMaximumWidth(45);
        } else {
            rec.m_input = 0;
        }

        rec.m_output = new AudioRouteMenu(m_mainBox,
                                          AudioRouteMenu::Out,
                                          AudioRouteMenu::Compact,
                                          m_studio, *i);
        QToolTip::add
            (rec.m_output->getWidget(), i18n("Output destination"));
        rec.m_output->getWidget()->setMaximumWidth(45);

        rec.m_pan = new Rotary
                    (m_mainBox, -100.0, 100.0, 1.0, 5.0, 0.0, 20,
                     Rotary::NoTicks, false, true);

        if ((*i)->getType() == Instrument::Audio) {
            rec.m_pan->setKnobColour(GUIPalette::getColour(GUIPalette::RotaryPastelGreen));
        } else {
            rec.m_pan->setKnobColour(GUIPalette::getColour(GUIPalette::RotaryPastelYellow));
        }

        QToolTip::add
            (rec.m_pan, i18n("Pan"));

        rec.m_fader = new Fader
                      (AudioLevel::LongFader, 20, 240, m_mainBox);
        rec.m_meter = new AudioVUMeter
                      (m_mainBox, VUMeter::AudioPeakHoldIECLong, true, rec.m_input != 0,
                       20, 240);

        QToolTip::add
            (rec.m_fader, i18n("Audio level"));
        QToolTip::add
            (rec.m_meter, i18n("Audio level"));

        rec.m_stereoButton = new QPushButton(m_mainBox);
        rec.m_stereoButton->setPixmap(m_monoPixmap);
        rec.m_stereoButton->setFixedSize(20, 20);
        rec.m_stereoButton->setFlat(true);
        rec.m_stereoness = false;
        QToolTip::add
            (rec.m_stereoButton, i18n("Mono or stereo"));

        rec.m_muteButton = new QPushButton(m_mainBox);
        rec.m_muteButton->setText("M");
        rec.m_muteButton->setToggleButton(true);
        rec.m_muteButton->setFixedWidth(rec.m_stereoButton->width());
        rec.m_muteButton->setFixedHeight(rec.m_stereoButton->height());
        rec.m_muteButton->setFlat(true);
        QToolTip::add
            (rec.m_muteButton, i18n("Mute"));

        rec.m_soloButton = new QPushButton(m_mainBox);
        rec.m_soloButton->setText("S");
        rec.m_soloButton->setToggleButton(true);
        rec.m_soloButton->setFixedWidth(rec.m_stereoButton->width());
        rec.m_soloButton->setFixedHeight(rec.m_stereoButton->height());
        rec.m_soloButton->setFlat(true);
        QToolTip::add
            (rec.m_soloButton, i18n("Solo"));

        rec.m_recordButton = new QPushButton(m_mainBox);
        rec.m_recordButton->setText("R");
        rec.m_recordButton->setToggleButton(true);
        rec.m_recordButton->setFixedWidth(rec.m_stereoButton->width());
        rec.m_recordButton->setFixedHeight(rec.m_stereoButton->height());
        rec.m_recordButton->setFlat(true);
        QToolTip::add
            (rec.m_recordButton, i18n("Arm recording"));

        rec.m_pluginBox = new QVBox(m_mainBox);

        for (int p = 0; p < 5; ++p) {
            QPushButton *plugin = new QPushButton(rec.m_pluginBox, "pluginButton");
            plugin->setText(i18n("<none>"));
            plugin->setMaximumWidth(45);
            QToolTip::add
                (plugin, i18n("Audio plugin button"));
            rec.m_plugins.push_back(plugin);
            connect(plugin, SIGNAL(clicked()),
                    this, SLOT(slotSelectPlugin()));
        }

        QLabel *idLabel;
        QString idString;
        if ((*i)->getType() == Instrument::Audio) {
            idString = i18n("Audio %1").arg((*i)->getId() -
                                            AudioInstrumentBase + 1);
            idLabel = new QLabel(idString, m_mainBox, "audioIdLabel");
        } else {
            idString = i18n("Synth %1").arg((*i)->getId() -
                                            SoftSynthInstrumentBase + 1);
            idLabel = new QLabel(idString, m_mainBox, "synthIdLabel");
        }
        idLabel->setFont(boldFont);

        if (rec.m_input) {
            mainLayout->addMultiCellWidget(rec.m_input->getWidget(), 1, 1, col, col + 1);
        }
        mainLayout->addMultiCellWidget(rec.m_output->getWidget(), 2, 2, col, col + 1);
        //	mainLayout->addWidget(idLabel, 2, col, Qt::AlignCenter);
        //	mainLayout->addWidget(rec.m_pan, 2, col+1, Qt::AlignLeft);

        mainLayout->addMultiCellWidget(idLabel, 0, 0, col, col + 1, Qt::AlignCenter);
        mainLayout->addWidget(rec.m_pan, 5, col, Qt::AlignCenter);

        mainLayout->addWidget(rec.m_fader, 3, col, Qt::AlignCenter);
        mainLayout->addWidget(rec.m_meter, 3, col + 1, Qt::AlignCenter);

        // commented out until implemented
        //	mainLayout->addWidget(rec.m_muteButton, 4, col);
        //	mainLayout->addWidget(rec.m_soloButton, 4, col+1);
        rec.m_muteButton->hide();
        rec.m_soloButton->hide();

        //	mainLayout->addWidget(rec.m_recordButton, 5, col);
        //	mainLayout->addWidget(rec.m_stereoButton, 5, col+1);

        rec.m_recordButton->hide();
        mainLayout->addWidget(rec.m_stereoButton, 5, col + 1);

        if (rec.m_pluginBox) {
            mainLayout->addMultiCellWidget(rec.m_pluginBox, 6, 6, col, col + 1);
        }