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#include "effects/effectchainmanager.h"
#include "effects/effectsmanager.h"
#include "effects/effectxmlelements.h"
#include <QtDebug>
#include <QDomDocument>
#include <QFile>
#include <QDir>
EffectChainManager::EffectChainManager(UserSettingsPointer pConfig,
EffectsManager* pEffectsManager)
: QObject(pEffectsManager),
m_pConfig(pConfig),
m_pEffectsManager(pEffectsManager) {
}
EffectChainManager::~EffectChainManager() {
//qDebug() << debugString() << "destroyed";
}
void EffectChainManager::registerChannel(const ChannelHandleAndGroup& handle_group) {
if (m_registeredChannels.contains(handle_group)) {
qWarning() << debugString() << "WARNING: Channel already registered:"
<< handle_group.name();
return;
}
m_registeredChannels.insert(handle_group);
foreach (StandardEffectRackPointer pRack, m_standardEffectRacks) {
pRack->registerChannel(handle_group);
}
}
StandardEffectRackPointer EffectChainManager::addStandardEffectRack() {
StandardEffectRackPointer pRack(new StandardEffectRack(
m_pEffectsManager, this, m_standardEffectRacks.size()));
m_standardEffectRacks.append(pRack);
m_effectRacksByGroup.insert(pRack->getGroup(), pRack);
return pRack;
}
StandardEffectRackPointer EffectChainManager::getStandardEffectRack(int i) {
if (i < 0 || i >= m_standardEffectRacks.size()) {
return StandardEffectRackPointer();
}
return m_standardEffectRacks[i];
}
EqualizerRackPointer EffectChainManager::addEqualizerRack() {
EqualizerRackPointer pRack(new EqualizerRack(
m_pEffectsManager, this, m_equalizerEffectRacks.size()));
m_equalizerEffectRacks.append(pRack);
m_effectRacksByGroup.insert(pRack->getGroup(), pRack);
return pRack;
}
EqualizerRackPointer EffectChainManager::getEqualizerRack(int i) {
if (i < 0 || i >= m_equalizerEffectRacks.size()) {
return EqualizerRackPointer();
}
return m_equalizerEffectRacks[i];
}
QuickEffectRackPointer EffectChainManager::addQuickEffectRack() {
QuickEffectRackPointer pRack(new QuickEffectRack(
m_pEffectsManager, this, m_quickEffectRacks.size()));
m_quickEffectRacks.append(pRack);
m_effectRacksByGroup.insert(pRack->getGroup(), pRack);
return pRack;
}
QuickEffectRackPointer EffectChainManager::getQuickEffectRack(int i) {
if (i < 0 || i >= m_quickEffectRacks.size()) {
return QuickEffectRackPointer();
}
return m_quickEffectRacks[i];
}
EffectRackPointer EffectChainManager::getEffectRack(const QString& group) {
return m_effectRacksByGroup.value(group);
}
void EffectChainManager::addEffectChain(EffectChainPointer pEffectChain) {
if (pEffectChain) {
m_effectChains.append(pEffectChain);
}
}
void EffectChainManager::removeEffectChain(EffectChainPointer pEffectChain) {
if (pEffectChain) {
m_effectChains.removeAll(pEffectChain);
}
}
EffectChainPointer EffectChainManager::getNextEffectChain(EffectChainPointer pEffectChain) {
if (m_effectChains.isEmpty())
return EffectChainPointer();
if (!pEffectChain) {
return m_effectChains[0];
}
int indexOf = m_effectChains.lastIndexOf(pEffectChain);
if (indexOf == -1) {
qWarning() << debugString() << "WARNING: getNextEffectChain called for an unmanaged EffectChain";
return m_effectChains[0];
}
return m_effectChains[(indexOf + 1) % m_effectChains.size()];
}
EffectChainPointer EffectChainManager::getPrevEffectChain(EffectChainPointer pEffectChain) {
if (m_effectChains.isEmpty())
return EffectChainPointer();
if (!pEffectChain) {
return m_effectChains[m_effectChains.size()-1];
}
int indexOf = m_effectChains.lastIndexOf(pEffectChain);
if (indexOf == -1) {
qWarning() << debugString() << "WARNING: getPrevEffectChain called for an unmanaged EffectChain";
return m_effectChains[m_effectChains.size()-1];
}
return m_effectChains[(indexOf - 1 + m_effectChains.size()) % m_effectChains.size()];
}
bool EffectChainManager::saveEffectChains() {
QDomDocument doc("MixxxEffects");
QString blank = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
"<" + EffectXml::Root + " schemaVersion=\"" +
QString::number(EffectXml::kXmlSchemaVersion) + "\">\n"
"</" + EffectXml::Root + ">\n";
doc.setContent(blank);
QDomElement rootNode = doc.documentElement();
for (EffectRackPointer pRack : m_standardEffectRacks) {
rootNode.appendChild(pRack->toXml(&doc));
}
// TODO? Save QuickEffects in effects.xml too, or keep stored in ConfigObjects?
// foreach(EffectRackPointer pRack, m_quickEffectRacks) {
// rootNode.appendChild(pRack->toXML(&doc));
// }
QDir settingsPath(m_pConfig->getSettingsPath());
if (!settingsPath.exists()) {
return false;
}
QFile file(settingsPath.absoluteFilePath("effects.xml"));
// TODO(rryan): overwrite the right way.
if (!file.open(QIODevice::Truncate | QIODevice::WriteOnly)) {
return false;
}
QString effectsXml = doc.toString();
file.write(effectsXml.toUtf8());
file.close();
return true;
}
QList<std::pair<EffectChainPointer, QDomElement>> EffectChainManager::loadEffectChains() {
// StandardEffectRack::addEffectChainSlot uses both the EffectChainPointer
// and the saved state from the XML to initialize the respective
// EffectChain/Effect/EffectParameter/EffectButtonParameter Slots
QList<std::pair<EffectChainPointer, QDomElement>> loadedChains;
QDir settingsPath(m_pConfig->getSettingsPath());
QFile file(settingsPath.absoluteFilePath("effects.xml"));
QDomDocument doc;
QDomElement emptyChainElement = doc.createElement(EffectXml::Chain);
// Check that XML file can be opened and is valid XML
if (!file.open(QIODevice::ReadOnly) || !doc.setContent(&file)) {
for (int i = 0; i < kNumStandardEffectChains; ++i) {
EffectChainPointer pEmptyChain = EffectChainPointer(
new EffectChain(m_pEffectsManager, QString(), EffectChainPointer()));
loadedChains.append(std::make_pair(pEmptyChain, emptyChainElement));
}
return loadedChains;
}
QDomElement root = doc.documentElement();
QDomElement rackElement = XmlParse::selectElement(root, EffectXml::Rack);
QDomElement chainsElement = XmlParse::selectElement(rackElement, EffectXml::ChainsRoot);
QDomNodeList chainsList = chainsElement.elementsByTagName(EffectXml::Chain);
for (int i = 0; i < chainsList.count(); ++i) {
QDomNode chainNode = chainsList.at(i);
if (chainNode.isElement()) {
QDomElement chainElement = chainNode.toElement();
EffectChainPointer pChain = EffectChain::createFromXml(
m_pEffectsManager, chainElement);
loadedChains.append(std::make_pair(pChain, chainElement));
m_effectChains.append(pChain);
}
}
// Make sure there are enough chains if the XML file does not have
// enough <EffectChain> elements
for (int i = loadedChains.size(); i < kNumStandardEffectChains; ++i) {
EffectChainPointer pEmptyChain = EffectChainPointer(
new EffectChain(m_pEffectsManager, QString(), EffectChainPointer()));
loadedChains.append(std::make_pair(pEmptyChain, emptyChainElement));
}
return loadedChains;
}
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