/home/maxime/Projets/Mixxx/1.10/mixxx/src/controlvaluedelegate.cpp

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/*
 * controlvaluedelegate.cpp
 *
 *  Created on: 18-Mar-2009
 *      Author: Albert Santoni
 */

#include <QtCore>
#include <QtGui>
#include "configobject.h"
#include "controlgroupdelegate.h" //Need to get CONTROLGROUP_CHANNEL1_STRING, etc.
#include "controlvaluedelegate.h"
#include "midi/midiinputmappingtablemodel.h" //Need this to know MIDIINPUTTABLEINDEX_CONTROLOBJECTGROUP

//Static var declarations
QStringList ControlValueDelegate::m_channelControlValues;
QStringList ControlValueDelegate::m_masterControlValues;
QStringList ControlValueDelegate::m_playlistControlValues;
QStringList ControlValueDelegate::m_flangerControlValues;
QStringList ControlValueDelegate::m_microphoneControlValues;


ControlValueDelegate::ControlValueDelegate(QObject *parent)
         : QItemDelegate(parent)
{
    if (m_channelControlValues.isEmpty()) //List is static/shared across all objects, so only fill once.
    {
        m_channelControlValues.append("beatsync");
        m_channelControlValues.append("cue_default");
        m_channelControlValues.append("filterHigh");
        m_channelControlValues.append("filterHighKill");
        m_channelControlValues.append("filterLow");
        m_channelControlValues.append("filterLowKill");
        m_channelControlValues.append("filterMid");
        m_channelControlValues.append("filterMidKill");
        m_channelControlValues.append("flanger");
        m_channelControlValues.append("keylock");
        m_channelControlValues.append("LoadSelectedTrack");
        m_channelControlValues.append("NextTrack");
        m_channelControlValues.append("pfl");
        m_channelControlValues.append("play");
        m_channelControlValues.append("fwd");
        m_channelControlValues.append("back");
        m_channelControlValues.append("reverse");
        m_channelControlValues.append("playposition");
        m_channelControlValues.append("pregain");
        m_channelControlValues.append("PrevTrack");
        m_channelControlValues.append("rate");
        m_channelControlValues.append("rate_perm_down_small");
        m_channelControlValues.append("rate_perm_up_small");
        m_channelControlValues.append("rate_perm_down");
        m_channelControlValues.append("rate_perm_up");
        m_channelControlValues.append("rate_temp_down");
        m_channelControlValues.append("rate_temp_up");
        m_channelControlValues.append("rateRange");
        m_channelControlValues.append("scratch");
        m_channelControlValues.append("scratch_enable");
        m_channelControlValues.append("volume");
        m_channelControlValues.append("wheel");
        m_channelControlValues.append("jog");
        m_channelControlValues.append("vinylcontrol_enabled");
        m_channelControlValues.append("vinylcontrol_mode");
        m_channelControlValues.append("vinylcontrol_cueing");
        m_channelControlValues.append("loop_in");
        m_channelControlValues.append("loop_out");
        m_channelControlValues.append("reloop_exit");
        m_channelControlValues.append("beatloop_4");
        m_channelControlValues.append("loop_halve");
        m_channelControlValues.append("loop_double");
        m_channelControlValues.append("hotcue_1_activate");
        m_channelControlValues.append("hotcue_2_activate");
        m_channelControlValues.append("hotcue_3_activate");
        m_channelControlValues.append("hotcue_4_activate");
        m_channelControlValues.append("hotcue_5_activate");
        m_channelControlValues.append("hotcue_6_activate");
        m_channelControlValues.append("hotcue_7_activate");
        m_channelControlValues.append("hotcue_8_activate");
        m_channelControlValues.append("hotcue_9_activate");
        m_channelControlValues.append("hotcue_10_activate");
        m_channelControlValues.append("hotcue_11_activate");
        m_channelControlValues.append("hotcue_12_activate");
        m_channelControlValues.append("hotcue_13_activate");
        m_channelControlValues.append("hotcue_14_activate");
        m_channelControlValues.append("hotcue_15_activate");
        m_channelControlValues.append("hotcue_16_activate");
        m_channelControlValues.append("hotcue_17_activate");
        m_channelControlValues.append("hotcue_18_activate");
        m_channelControlValues.append("hotcue_19_activate");
        m_channelControlValues.append("hotcue_20_activate");
        m_channelControlValues.append("hotcue_21_activate");
        m_channelControlValues.append("hotcue_22_activate");
        m_channelControlValues.append("hotcue_23_activate");
        m_channelControlValues.append("hotcue_24_activate");
        m_channelControlValues.append("hotcue_25_activate");
        m_channelControlValues.append("hotcue_26_activate");
        m_channelControlValues.append("hotcue_27_activate");
        m_channelControlValues.append("hotcue_28_activate");
        m_channelControlValues.append("hotcue_29_activate");
        m_channelControlValues.append("hotcue_30_activate");
        m_channelControlValues.append("hotcue_31_activate");
        m_channelControlValues.append("hotcue_32_activate");
        m_channelControlValues.append("hotcue_33_activate");
        m_channelControlValues.append("hotcue_34_activate");
        m_channelControlValues.append("hotcue_35_activate");
        m_channelControlValues.append("hotcue_36_activate");
        m_channelControlValues.append("hotcue_1_clear");
        m_channelControlValues.append("hotcue_2_clear");
        m_channelControlValues.append("hotcue_3_clear");
        m_channelControlValues.append("hotcue_4_clear");
        m_channelControlValues.append("hotcue_5_clear");
        m_channelControlValues.append("hotcue_6_clear");
        m_channelControlValues.append("hotcue_7_clear");
        m_channelControlValues.append("hotcue_8_clear");
        m_channelControlValues.append("hotcue_9_clear");
        m_channelControlValues.append("hotcue_10_clear");
        m_channelControlValues.append("hotcue_11_clear");
        m_channelControlValues.append("hotcue_12_clear");
        m_channelControlValues.append("hotcue_13_clear");
        m_channelControlValues.append("hotcue_14_clear");
        m_channelControlValues.append("hotcue_15_clear");
        m_channelControlValues.append("hotcue_16_clear");
        m_channelControlValues.append("hotcue_17_clear");
        m_channelControlValues.append("hotcue_18_clear");
        m_channelControlValues.append("hotcue_19_clear");
        m_channelControlValues.append("hotcue_20_clear");
        m_channelControlValues.append("hotcue_21_clear");
        m_channelControlValues.append("hotcue_22_clear");
        m_channelControlValues.append("hotcue_23_clear");
        m_channelControlValues.append("hotcue_24_clear");
        m_channelControlValues.append("hotcue_25_clear");
        m_channelControlValues.append("hotcue_26_clear");
        m_channelControlValues.append("hotcue_27_clear");
        m_channelControlValues.append("hotcue_28_clear");
        m_channelControlValues.append("hotcue_29_clear");
        m_channelControlValues.append("hotcue_30_clear");
        m_channelControlValues.append("hotcue_31_clear");
        m_channelControlValues.append("hotcue_32_clear");
        m_channelControlValues.append("hotcue_33_clear");
        m_channelControlValues.append("hotcue_34_clear");
        m_channelControlValues.append("hotcue_35_clear");
        m_channelControlValues.append("hotcue_36_clear");
    }
    if (m_masterControlValues.isEmpty())
    {
        m_masterControlValues.append("balance");
        m_masterControlValues.append("crossfader");
        m_masterControlValues.append("volume");
    }
    if (m_playlistControlValues.isEmpty())
    {
        m_playlistControlValues.append("LoadSelectedIntoFirstStopped");
        m_playlistControlValues.append("SelectNextPlaylist");
        m_playlistControlValues.append("SelectNextTrack");
        m_playlistControlValues.append("SelectPrevPlaylist");
        m_playlistControlValues.append("SelectPrevTrack");
        m_playlistControlValues.append("SelectTrackKnob");
    }
    if (m_flangerControlValues.isEmpty())
    {
        m_flangerControlValues.append("lfoPeriod");
        m_flangerControlValues.append("lfoDepth");
        m_flangerControlValues.append("lfoDelay");
    }
    if (m_microphoneControlValues.isEmpty())
    {
        m_microphoneControlValues.append("talkover");
        m_microphoneControlValues.append("volume");
    }
}

void ControlValueDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
                         const QModelIndex &index) const
{
    if (index.data().canConvert<QString>()) {
        QString value = index.data().value<QString>();

        if (option.state & QStyle::State_Selected)
            painter->fillRect(option.rect, option.palette.highlight());

        //starRating.paint(painter, option.rect, option.palette,
        //                 StarRating::ReadOnly);

        QString text;
        text = value;

        painter->drawText(option.rect, text, QTextOption(Qt::AlignCenter));
        //Note that Qt::AlignCenter does both vertical and horizontal alignment.
    } else {
        QItemDelegate::paint(painter, option, index);
    }
}

QWidget *ControlValueDelegate::createEditor(QWidget *parent,
        const QStyleOptionViewItem &/* option */,
        const QModelIndex &index ) const
{
    //TODO: Use index to grab the value of the ControlGroup column next to
    //      this item. We want to do this because some of the possible
    //      ControlValues only apply to Channel1/2, and not Master (for example).

    QModelIndex nextDoor = index.sibling(index.row(), MIDIINPUTTABLEINDEX_CONTROLOBJECTGROUP);
    QString controlGroup = nextDoor.model()->data(nextDoor, Qt::EditRole).toString();

    QComboBox *editor = new QComboBox(parent);

    if (controlGroup == CONTROLGROUP_CHANNEL1_STRING ||
        controlGroup == CONTROLGROUP_CHANNEL2_STRING ||
        controlGroup == CONTROLGROUP_SAMPLER1_STRING ||
        controlGroup == CONTROLGROUP_SAMPLER2_STRING ||
        controlGroup == CONTROLGROUP_SAMPLER3_STRING ||
        controlGroup == CONTROLGROUP_SAMPLER4_STRING)
    {
        //Add all the channel 1/2 items)
        editor->addItems(m_channelControlValues);
    }
    else if (controlGroup == CONTROLGROUP_MASTER_STRING)
    {
        //Add all the ControlObject values that only [Master] has.
        editor->addItems(m_masterControlValues);
    }
    else if (controlGroup == CONTROLGROUP_PLAYLIST_STRING)
    {
        //Add all the ControlObject values that only [Playlist] has.
        editor->addItems(m_playlistControlValues);
    }
    else if (controlGroup == CONTROLGROUP_FLANGER_STRING)
    {
        //Add all the ControlObject values that only [Flanger] has.
        editor->addItems(m_flangerControlValues);
    }
    else if (controlGroup == CONTROLGROUP_MICROPHONE_STRING)
    {
        //Add all the ControlObject values that only [Microphone] has.
        editor->addItems(m_microphoneControlValues);
    }
    return editor;
}

void ControlValueDelegate::setEditorData(QWidget *editor,
                                    const QModelIndex &index) const
{
    QString value = index.model()->data(index, Qt::EditRole).toString();

    QComboBox *comboBox = static_cast<QComboBox*>(editor);
    comboBox->setCurrentIndex(comboBox->findText(value));
}

void ControlValueDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
                                    const QModelIndex &index) const
{
    QString midiType = 0;
    QComboBox *comboBox = static_cast<QComboBox*>(editor);
    //comboBox->interpretText();

    //Get the text from the combobox and shoot it into the data model.
    QString text = comboBox->currentText();

    model->setData(index, text, Qt::EditRole);
}

void ControlValueDelegate::updateEditorGeometry(QWidget *editor,
                                           const QStyleOptionViewItem &option,
                                           const QModelIndex &/* index */) const
{
    editor->setGeometry(option.rect);
}

bool ControlValueDelegate::verifyControlValueValidity(QString controlGroup, QAbstractItemModel *model,
                                                      const QModelIndex& index)
{
    QString value = index.data().value<QString>();

    if (controlGroup == CONTROLGROUP_CHANNEL1_STRING ||
        controlGroup == CONTROLGROUP_CHANNEL2_STRING ||
        controlGroup == CONTROLGROUP_SAMPLER1_STRING ||
        controlGroup == CONTROLGROUP_SAMPLER2_STRING ||
        controlGroup == CONTROLGROUP_SAMPLER3_STRING ||
        controlGroup == CONTROLGROUP_SAMPLER4_STRING)
    {
        if (m_channelControlValues.contains(value))
            return true;
    }
    else if (controlGroup == CONTROLGROUP_MASTER_STRING)
    {
        if (m_masterControlValues.contains(value))
            return true;
    }
    else if (controlGroup == CONTROLGROUP_PLAYLIST_STRING)
    {
        if (m_playlistControlValues.contains(value))
            return true;
    }
    else if (controlGroup == CONTROLGROUP_FLANGER_STRING)
    {
        if (m_flangerControlValues.contains(value))
            return true;
    }
    else if (controlGroup == CONTROLGROUP_MICROPHONE_STRING)
    {
        if (m_microphoneControlValues.contains(value))
            return true;
    }
    else
    {
        qDebug() << "Unknown ControlGroup in " << __FILE__;
    }

    //If we got this far, it means the ControlValue wasn't valid for the new ControlGroup,
    //so we should clear the ControlValue.
    model->setData(index, "", Qt::EditRole);

    return false;
}