view widgets/PluginPathConfigurator.cpp @ 1534:bfd8b22fd67c

Fix #1904 Scrolling colour 3d plot does not always work when in View normalisation mode. We shouldn't imagine we've just invalidated the cache if the truth is that we've only just created the renderer

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

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    
    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 "PluginPathConfigurator.h"
#include "PluginReviewDialog.h"

#include <QPushButton>
#include <QListWidget>
#include <QGridLayout>
#include <QComboBox>
#include <QLabel>
#include <QCheckBox>
#include <QFileDialog>

#include "IconLoader.h"
#include "WidgetScale.h"

#include "plugin/PluginPathSetter.h"

PluginPathConfigurator::PluginPathConfigurator(QWidget *parent) :
    QFrame(parent)
{
    m_layout = new QGridLayout;
    setLayout(m_layout);

    QHBoxLayout *buttons = new QHBoxLayout;

    m_down = new QPushButton;
    m_down->setIcon(IconLoader().load("down"));
    m_down->setToolTip(tr("Move the selected location later in the list"));
    connect(m_down, SIGNAL(clicked()), this, SLOT(downClicked()));
    buttons->addWidget(m_down);

    m_up = new QPushButton;
    m_up->setIcon(IconLoader().load("up"));
    m_up->setToolTip(tr("Move the selected location earlier in the list"));
    connect(m_up, SIGNAL(clicked()), this, SLOT(upClicked()));
    buttons->addWidget(m_up);

    m_add = new QPushButton;
    m_add->setIcon(IconLoader().load("plus"));
    m_add->setToolTip(tr("Add a new location to the list"));
    connect(m_add, SIGNAL(clicked()), this, SLOT(addClicked()));
    buttons->addWidget(m_add);
    
    m_delete = new QPushButton;
    m_delete->setIcon(IconLoader().load("datadelete"));
    m_delete->setToolTip(tr("Remove the selected location from the list"));
    connect(m_delete, SIGNAL(clicked()), this, SLOT(deleteClicked()));
    buttons->addWidget(m_delete);

    m_reset = new QPushButton;
    m_reset->setText(tr("Reset to Default"));
    m_reset->setToolTip(tr("Reset the list for this plugin type to its default"));
    connect(m_reset, SIGNAL(clicked()), this, SLOT(resetClicked()));
    buttons->addWidget(m_reset);

    buttons->addStretch(50);

    m_seePlugins = new QPushButton;
    m_seePlugins->setText(tr("Review plugins..."));
    connect(m_seePlugins, SIGNAL(clicked()), this, SLOT(seePluginsClicked()));
    buttons->addWidget(m_seePlugins);

    int row = 0;
    
    m_header = new QLabel;
    m_header->setText(tr("Plugin locations for plugin type:"));
    m_layout->addWidget(m_header, row, 0);

    m_pluginTypeSelector = new QComboBox;
    m_layout->addWidget(m_pluginTypeSelector, row, 1, Qt::AlignLeft);
    connect(m_pluginTypeSelector, SIGNAL(currentTextChanged(QString)),
            this, SLOT(currentTypeChanged(QString)));

    m_layout->setColumnStretch(1, 10);
    ++row;
    
    m_list = new QListWidget;
    m_layout->addWidget(m_list, row, 0, 1, 3);
    m_layout->setRowStretch(row, 20);
    connect(m_list, SIGNAL(currentRowChanged(int)),
            this, SLOT(currentLocationChanged(int)));
    ++row;

    m_layout->addLayout(buttons, row, 0, 1, 3);
    
    ++row;

    m_envOverride = new QCheckBox;
    connect(m_envOverride, SIGNAL(stateChanged(int)),
            this, SLOT(envOverrideChanged(int)));
    m_layout->addWidget(m_envOverride, row, 0, 1, 3);
    ++row;
}

PluginPathConfigurator::~PluginPathConfigurator()
{
}

QString
PluginPathConfigurator::getLabelFor(PluginPathSetter::TypeKey key)
{
    if (key.second == KnownPlugins::FormatNative) {
        switch (key.first) {
        case KnownPlugins::VampPlugin:
            return tr("Vamp");
        case KnownPlugins::LADSPAPlugin:
            return tr("LADSPA");
        case KnownPlugins::DSSIPlugin:
            return tr("DSSI");
        }
    } else if (key.second == KnownPlugins::FormatNonNative32Bit) {
        switch (key.first) {
        case KnownPlugins::VampPlugin:
            return tr("Vamp (32-bit)");
        case KnownPlugins::LADSPAPlugin:
            return tr("LADSPA (32-bit)");
        case KnownPlugins::DSSIPlugin:
            return tr("DSSI (32-bit)");
        }
    }
    SVCERR << "PluginPathConfigurator::getLabelFor: WARNING: "
           << "Unknown format value " << key.second << endl;
    return "<unknown>";
}

PluginPathSetter::TypeKey
PluginPathConfigurator::getKeyForLabel(QString label)
{
    for (const auto &p: m_paths) {
        auto key = p.first;
        if (getLabelFor(key) == label) {
            return key;
        }
    }
    SVCERR << "PluginPathConfigurator::getKeyForLabel: WARNING: "
           << "Unrecognised label \"" << label << "\"" << endl;
    return { KnownPlugins::VampPlugin, KnownPlugins::FormatNative };
}

void
PluginPathConfigurator::setPaths(PluginPathSetter::Paths paths)
{
    m_paths = paths;

    m_defaultPaths = PluginPathSetter::getDefaultPaths();

    m_pluginTypeSelector->clear();
    for (const auto &p: paths) {
        m_pluginTypeSelector->addItem(getLabelFor(p.first));
    }
    
    populate();
}

void
PluginPathConfigurator::populate()
{
    m_list->clear();

    if (m_paths.empty()) return;

    populateFor(m_paths.begin()->first, -1);
}

void
PluginPathConfigurator::populateFor(PluginPathSetter::TypeKey key,
                                    int makeCurrent)
{
    QString envVariable = m_paths.at(key).envVariable;
    bool useEnvVariable = m_paths.at(key).useEnvVariable;
    QString envVarValue =
        PluginPathSetter::getOriginalEnvironmentValue(envVariable);
    QString currentValueRubric;
    if (envVarValue == QString()) {
        currentValueRubric = tr("(Variable is currently unset)");
    } else {
        if (envVarValue.length() > 100) {
            QString envVarStart = envVarValue.left(95);
            currentValueRubric = tr("(Current value begins: \"%1 ...\")")
                .arg(envVarStart);
        } else {
            currentValueRubric = tr("(Currently set to: \"%1\")")
                .arg(envVarValue);
        }
    }        
    m_envOverride->setText
        (tr("Allow the %1 environment variable to take priority over this\n%2")
         .arg(envVariable)
         .arg(currentValueRubric));
    m_envOverride->setCheckState(useEnvVariable ? Qt::Checked : Qt::Unchecked);

    m_list->clear();

    for (int i = 0; i < m_pluginTypeSelector->count(); ++i) {
        if (getLabelFor(key) == m_pluginTypeSelector->itemText(i)) {
            m_pluginTypeSelector->blockSignals(true);
            m_pluginTypeSelector->setCurrentIndex(i);
            m_pluginTypeSelector->blockSignals(false);
        }
    }
    
    QStringList path = m_paths.at(key).directories;
    
    for (int i = 0; i < path.size(); ++i) {
        m_list->addItem(path[i]);
    }

    if (makeCurrent < path.size()) {
        m_list->setCurrentRow(makeCurrent);
        currentLocationChanged(makeCurrent);
    }
}

void
PluginPathConfigurator::currentLocationChanged(int i)
{
    QString label = m_pluginTypeSelector->currentText();
    PluginPathSetter::TypeKey key = getKeyForLabel(label);
    QStringList path = m_paths.at(key).directories;
    m_up->setEnabled(i > 0);
    m_down->setEnabled(i >= 0 && i + 1 < path.size());
    m_delete->setEnabled(i >= 0 && i < path.size());
    m_reset->setEnabled(path != m_defaultPaths.at(key).directories);
}

void
PluginPathConfigurator::currentTypeChanged(QString label)
{
    populateFor(getKeyForLabel(label), -1);
}

void
PluginPathConfigurator::envOverrideChanged(int state)
{
    bool useEnvVariable = (state == Qt::Checked);
    
    QString label = m_pluginTypeSelector->currentText();
    PluginPathSetter::TypeKey key = getKeyForLabel(label);

    auto newEntry = m_paths.at(key);
    newEntry.useEnvVariable = useEnvVariable;
    m_paths[key] = newEntry;

    emit pathsChanged();
}

void
PluginPathConfigurator::upClicked()
{
    QString label = m_pluginTypeSelector->currentText();
    PluginPathSetter::TypeKey key = getKeyForLabel(label);
    QStringList path = m_paths.at(key).directories;
        
    int current = m_list->currentRow();
    if (current <= 0) return;
    
    QStringList newPath;
    for (int i = 0; i < path.size(); ++i) {
        if (i + 1 == current) {
            newPath.push_back(path[i+1]);
            newPath.push_back(path[i]);
            ++i;
        } else {
            newPath.push_back(path[i]);
        }
    }

    auto newEntry = m_paths.at(key);
    newEntry.directories = newPath;
    m_paths[key] = newEntry;
    
    populateFor(key, current - 1);

    emit pathsChanged();
}

void
PluginPathConfigurator::downClicked()
{
    QString label = m_pluginTypeSelector->currentText();
    PluginPathSetter::TypeKey key = getKeyForLabel(label);
    QStringList path = m_paths.at(key).directories;

    int current = m_list->currentRow();
    if (current < 0 || current + 1 >= path.size()) return;

    QStringList newPath;
    for (int i = 0; i < path.size(); ++i) {
        if (i == current) {
            newPath.push_back(path[i+1]);
            newPath.push_back(path[i]);
            ++i;
        } else {
            newPath.push_back(path[i]);
        }
    }

    auto newEntry = m_paths.at(key);
    newEntry.directories = newPath;
    m_paths[key] = newEntry;
    
    populateFor(key, current + 1);

    emit pathsChanged();
}

void
PluginPathConfigurator::addClicked()
{
    QString label = m_pluginTypeSelector->currentText();
    PluginPathSetter::TypeKey key = getKeyForLabel(label);

    QString newDir = QFileDialog::getExistingDirectory
        (this, tr("Choose directory to add"));

    if (newDir == QString()) return;

    auto newEntry = m_paths.at(key);
    newEntry.directories.push_back(newDir);
    m_paths[key] = newEntry;
    
    populateFor(key, newEntry.directories.size() - 1);

    emit pathsChanged();
}

void
PluginPathConfigurator::deleteClicked()
{
    QString label = m_pluginTypeSelector->currentText();
    PluginPathSetter::TypeKey key = getKeyForLabel(label);
    QStringList path = m_paths.at(key).directories;
    
    int current = m_list->currentRow();
    if (current < 0) return;

    QStringList newPath;
    for (int i = 0; i < path.size(); ++i) {
        if (i != current) {
            newPath.push_back(path[i]);
        }
    }

    auto newEntry = m_paths.at(key);
    newEntry.directories = newPath;
    m_paths[key] = newEntry;
    
    populateFor(key, current < newPath.size() ? current : current-1);

    emit pathsChanged();
}

void
PluginPathConfigurator::resetClicked()
{
    QString label = m_pluginTypeSelector->currentText();
    PluginPathSetter::TypeKey key = getKeyForLabel(label);
    m_paths[key] = m_defaultPaths[key];
    populateFor(key, -1);

    emit pathsChanged();
}

void
PluginPathConfigurator::seePluginsClicked()
{
    PluginReviewDialog dialog(this);
    dialog.populate();
    dialog.exec();
}