midiprogramseditor.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 "MidiProgramsEditor.h"
#include "MidiBankListViewItem.h"
#include "NameSetEditor.h"
#include "misc/Debug.h"
#include "misc/Strings.h"
#include "BankEditorDialog.h"
#include "base/Device.h"
#include "base/MidiDevice.h"
#include "base/MidiProgram.h"
#include "gui/widgets/RosegardenPopupMenu.h"
#include <kcompletion.h>
#include <kglobal.h>
#include <klineedit.h>
#include <klocale.h>
#include <kstddirs.h>
#include <qcheckbox.h>
#include <qcursor.h>
#include <qfile.h>
#include <qframe.h>
#include <qlabel.h>
#include <qlayout.h>
#include <qobjectlist.h>
#include <qpixmap.h>
#include <qpoint.h>
#include <qpopupmenu.h>
#include <qpushbutton.h>
#include <qspinbox.h>
#include <qstring.h>
#include <qtooltip.h>
#include <qvgroupbox.h>
#include <qwidget.h>
#include <algorithm>

namespace Rosegarden
{

MidiProgramsEditor::MidiProgramsEditor(BankEditorDialog* bankEditor,
                                       QWidget* parent,
                                       const char* name)
        : NameSetEditor(bankEditor,
                        i18n("Bank and Program details"),
                        parent, name, i18n("Programs"), true),
        m_device(0),
        m_bankList(bankEditor->getBankList()),
        m_programList(bankEditor->getProgramList()),
        m_oldBank(false, 0, 0)
{
    QWidget *additionalWidget = makeAdditionalWidget(m_mainFrame);
    if (additionalWidget) {
        m_mainLayout->addMultiCellWidget(additionalWidget, 0, 2, 0, 2);
    }
}

QWidget *
MidiProgramsEditor::makeAdditionalWidget(QWidget *parent)
{
    QFrame *frame = new QFrame(parent);

    m_percussion = new QCheckBox(frame);
    m_msb = new QSpinBox(frame);
    m_lsb = new QSpinBox(frame);

    QGridLayout *gridLayout = new QGridLayout(frame,
                              3,   // rows
                              2,   // cols
                              2); // margin

    gridLayout->addWidget(new QLabel(i18n("Percussion"), frame),
                          0, 0, AlignLeft);
    gridLayout->addWidget(m_percussion, 0, 1, AlignLeft);
    connect(m_percussion, SIGNAL(clicked()),
            this, SLOT(slotNewPercussion()));

    gridLayout->addWidget(new QLabel(i18n("MSB Value"), frame),
                          1, 0, AlignLeft);
    m_msb->setMinValue(0);
    m_msb->setMaxValue(127);
    gridLayout->addWidget(m_msb, 1, 1, AlignLeft);

    QToolTip::add
        (m_msb,
                i18n("Selects a MSB controller Bank number (MSB/LSB pairs are always unique for any Device)"));

    QToolTip::add
        (m_lsb,
                i18n("Selects a LSB controller Bank number (MSB/LSB pairs are always unique for any Device)"));

    connect(m_msb, SIGNAL(valueChanged(int)),
            this, SLOT(slotNewMSB(int)));

    gridLayout->addWidget(new QLabel(i18n("LSB Value"), frame),
                          2, 0, AlignLeft);
    m_lsb->setMinValue(0);
    m_lsb->setMaxValue(127);
    gridLayout->addWidget(m_lsb, 2, 1, AlignLeft);

    connect(m_lsb, SIGNAL(valueChanged(int)),
            this, SLOT(slotNewLSB(int)));

    return frame;
}

ProgramList
MidiProgramsEditor::getBankSubset(const MidiBank &bank)
{
    ProgramList program;
    ProgramList::iterator it;

    for (it = m_programList.begin(); it != m_programList.end(); it++) {
        if (it->getBank() == bank)
            program.push_back(*it);
    }

    return program;
}

MidiBank*
MidiProgramsEditor::getCurrentBank()
{
    return m_currentBank;
}

void
MidiProgramsEditor::modifyCurrentPrograms(const MidiBank &oldBank,
        const MidiBank &newBank)
{
    ProgramList::iterator it;

    for (it = m_programList.begin(); it != m_programList.end(); it++) {
        if (it->getBank() == oldBank) {
            *it = MidiProgram(newBank, it->getProgram(), it->getName());
        }
    }
}

void
MidiProgramsEditor::clearAll()
{
    blockAllSignals(true);

    for (unsigned int i = 0; i < m_names.size(); ++i)
        m_names[i]->clear();

    setTitle(i18n("Bank and Program details"));

    m_percussion->setChecked(false);
    m_msb->setValue(0);
    m_lsb->setValue(0);
    m_librarian->clear();
    m_librarianEmail->clear();
    m_currentBank = 0;
    setEnabled(false);

    blockAllSignals(false);
}

void
MidiProgramsEditor::populate(QListViewItem* item)
{
    RG_DEBUG << "MidiProgramsEditor::populate\n";

    MidiBankListViewItem* bankItem = dynamic_cast<MidiBankListViewItem*>(item);
    if (!bankItem) {
        RG_DEBUG << "MidiProgramsEditor::populate : not a bank item - returning\n";
        return ;
    }

    DeviceId deviceId = bankItem->getDeviceId();
    m_device = m_bankEditor->getMidiDevice(deviceId);
    if (!m_device)
        return ;

    setEnabled(true);

    setBankName(item->text(0));

    RG_DEBUG << "MidiProgramsEditor::populate : bankItem->getBank = "
    << bankItem->getBank() << endl;

    m_currentBank = &(m_bankList[bankItem->getBank()]); // m_device->getBankByIndex(bankItem->getBank());

    blockAllSignals(true);

    // set the bank values
    m_percussion->setChecked(m_currentBank->isPercussion());
    m_msb->setValue(m_currentBank->getMSB());
    m_lsb->setValue(m_currentBank->getLSB());

    m_oldBank = *m_currentBank;

    // Librarian details
    //
    m_librarian->setText(strtoqstr(m_device->getLibrarianName()));
    m_librarianEmail->setText(strtoqstr(m_device->getLibrarianEmail()));

    ProgramList programSubset = getBankSubset(*m_currentBank);
    ProgramList::iterator it;

    QPixmap noKeyPixmap, keyPixmap;
    QString pixmapDir = KGlobal::dirs()->findResource("appdata", "pixmaps/");
    QString file = pixmapDir + "/toolbar/key-white.png";
    if (QFile(file).exists())
        noKeyPixmap = QPixmap(file);
    file = pixmapDir + "/toolbar/key-green.png";
    if (QFile(file).exists())
        keyPixmap = QPixmap(file);

    bool haveKeyMappings = m_currentBank->isPercussion()
                           && (m_device->getKeyMappings().size() > 0);

    for (unsigned int i = 0; i < m_names.size(); i++) {
        m_names[i]->clear();
        getEntryButton(i)->setEnabled(haveKeyMappings);
        getEntryButton(i)->setPixmap(noKeyPixmap);
        QToolTip::remove
            ( getEntryButton(i) );

        for (it = programSubset.begin(); it != programSubset.end(); it++) {
            if (it->getProgram() == i) {

                QString programName = strtoqstr(it->getName());
                m_completion.addItem(programName);
                m_names[i]->setText(programName);

                if (m_device->getKeyMappingForProgram(*it)) {
                    getEntryButton(i)->setPixmap(keyPixmap);
                    QToolTip::add
                        (getEntryButton(i),
                                i18n("Key Mapping: %1").arg(
                                    strtoqstr(m_device->getKeyMappingForProgram(*it)->getName())));
                }

                break;
            }
        }

        // show start of label
        m_names[i]->setCursorPosition(0);
    }

    blockAllSignals(false);
}

void
MidiProgramsEditor::reset()
{
    m_percussion->blockSignals(true);
    m_msb->blockSignals(true);
    m_lsb->blockSignals(true);

    m_percussion->setChecked(m_oldBank.isPercussion());
    m_msb->setValue(m_oldBank.getMSB());
    m_lsb->setValue(m_oldBank.getLSB());

    if (m_currentBank) {
        modifyCurrentPrograms(*m_currentBank, m_oldBank);
        *m_currentBank = m_oldBank;
    }

    m_percussion->blockSignals(false);
    m_msb->blockSignals(false);
    m_lsb->blockSignals(false);
}

void
MidiProgramsEditor::slotNewPercussion()
{
    RG_DEBUG << "MidiProgramsEditor::slotNewPercussion" << endl;
    bool percussion = m_percussion->isChecked();
    m_percussion->blockSignals(true);
    if (banklistContains(MidiBank(percussion, m_msb->value(), m_lsb->value()))) {
        RG_DEBUG << "MidiProgramsEditor::slotNewPercussion: calling setChecked(" << !percussion << ")" << endl;
        m_percussion->setChecked(!percussion);
    } else {
        MidiBank newBank(percussion,
                         m_msb->value(),
                         m_lsb->value());
        modifyCurrentPrograms(*getCurrentBank(), newBank);
        *getCurrentBank() = newBank;
    }
    m_percussion->blockSignals(false);
    m_bankEditor->setModified(true);
}

void
MidiProgramsEditor::slotNewMSB(int value)
{
    RG_DEBUG << "MidiProgramsEditor::slotNewMSB(" << value << ")\n";

    m_msb->blockSignals(true);