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samplerwindow.cpp
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samplerwindow.cpp
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#include "samplerwindow.h"
#include "ui_samplerwindow.h"
#include "newsampledialog.h"
#include <QMessageBox>
#include <fmod_errors.h>
#include <QKeyEvent>
#include <QCloseEvent>
#include <QShowEvent>
#include <QSettings>
#include <QFileDialog>
#include <QDomDocument>
#include <QFile>
#include <QFileInfo>
#include <QDebug>
#define MAX_CHANNELS 32
QString SamplerWindow::lastStateDir;
SamplerWindow::SamplerWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::SamplerWindow)
{
QSettings s;
lastStateDir = s.value("lastStateDir").toString();
if (lastStateDir.isEmpty())
lastStateDir = ".";
ui->setupUi(this);
FMOD_RESULT res = FMOD::System_Create(&system);
if (res != FMOD_OK)
{
QMessageBox::critical(0, "FMOD Error!", QString("FMOD returned error: %1 (%2)").arg(FMOD_ErrorString(res)).arg(res));
close();
}
res = system->init(MAX_CHANNELS, FMOD_INIT_NORMAL, 0);
if (res != FMOD_OK)
{
QMessageBox::critical(0, "FMOD Error!", QString("FMOD returned error: %1 (%2)").arg(FMOD_ErrorString(res)).arg(res));
close();
}
running = false;
stateSaved = true;
firstShow = true;
ui->actionStop->setEnabled(false);
}
SamplerWindow::~SamplerWindow()
{
QSettings s;
s.setValue("lastStateDir", lastStateDir);
delete ui;
}
void SamplerWindow::changeEvent(QEvent *e)
{
QMainWindow::changeEvent(e);
switch (e->type()) {
case QEvent::LanguageChange:
ui->retranslateUi(this);
break;
default:
break;
}
}
void SamplerWindow::keyPressEvent(QKeyEvent * ke)
{
if (running)
{
if (ke->isAutoRepeat())
return;
Qt::Key key = (Qt::Key)ke->key();
foreach (Sample * sample, samples)
{
if (sample->key().key() == key)
{
if (sample->loopType() != Sample::AutoLoop)
sample->start();
else
{
if (sample->isPlaying())
sample->stop();
else
sample->start();
}
}
}
}
else
QMainWindow::keyPressEvent(ke);
}
void SamplerWindow::keyReleaseEvent(QKeyEvent * ke)
{
if (running)
{
if (ke->isAutoRepeat())
return;
Qt::Key key = (Qt::Key)ke->key();
foreach (Sample * sample, samples)
{
if ((sample->loopType() != Sample::AutoLoop) && (sample->key().key() == key))
{
sample->stop();
}
}
}
else
QMainWindow::keyReleaseEvent(ke);
}
void SamplerWindow::closeEvent(QCloseEvent * ce)
{
if (!stateSaved)
{
int code = QMessageBox::question(this, "State not saved", "Do you want to save current state?", QMessageBox::Yes, QMessageBox::No, QMessageBox::Cancel);
switch (code)
{
case QMessageBox::Yes:
on_actionSave_state_triggered();
break;
case QMessageBox::Cancel:
ce->ignore();
return;
break;
default:
break;
}
}
QSettings s;
s.setValue("windowState", saveState());
s.setValue("windowGeometry", saveGeometry());
QMainWindow::closeEvent(ce);
}
void SamplerWindow::showEvent(QShowEvent * e)
{
if (firstShow)
{
firstShow = false;
QSettings s;
restoreState(s.value("windowState").toByteArray());
restoreGeometry(s.value("windowGeometry").toByteArray());
}
QMainWindow::showEvent(e);
}
void SamplerWindow::saveSamplerState(const QString& file)
{
if (!file.isEmpty())
{
QDomDocument doc;
QDomElement root = doc.createElement("SamplerState");
doc.appendChild(root);
foreach (Sample * sample, samples)
{
QDomElement sampleEl = doc.createElement("Sample");
sampleEl.setAttribute("name", sample->name());
sampleEl.setAttribute("file", sample->fileName());
sampleEl.setAttribute("key", sample->key().key());
sampleEl.setAttribute("loopType", sample->loopType());
sampleEl.setAttribute("volume", sample->getVolume());
sampleEl.setAttribute("pan", sample->getPan());
root.appendChild(sampleEl);
}
QFile f(file);
if (f.open(QFile::WriteOnly | QFile::Truncate))
{
f.write(doc.toString().toUtf8());
QFileInfo info(file);
stateName = info.baseName();
stateFile = file;
setWindowTitle(stateName + " - DamnSampler");
}
else
QMessageBox::critical(this, "Error", QString("Can\'t open file %1 for writing!").arg(file), QMessageBox::Ok);
}
}
void SamplerWindow::loadSamplerState(const QString& file)
{
if (!file.isEmpty())
{
QFile f(file);
if (f.open(QFile::ReadOnly))
{
QByteArray fc = f.readAll();
qDebug() << fc;
QDomDocument doc;
doc.setContent(QString::fromUtf8(fc));
if (!doc.isNull())
{
qDebug() << doc.firstChild().nodeName();
QDomElement root = doc.firstChildElement("SamplerState");
if (!root.isNull())
{
on_actionClear_state_triggered();
QList<Sample*> tempList;
QDomElement sampleEl = root.firstChildElement("Sample");
while (!sampleEl.isNull())
{
SampleInfo info;
info.name = sampleEl.attribute("name");
info.file = sampleEl.attribute("file");
info.key = KeyboardKey((Qt::Key)sampleEl.attribute("key").toInt());
info.loopType = (Sample::LoopType)sampleEl.attribute("loopType").toInt();
info.volume = sampleEl.attribute("volume").toInt();
info.panning = sampleEl.attribute("pan").toInt();
tempList.append(new Sample(info, system, tempList.count()));
sampleEl = sampleEl.nextSiblingElement("Sample");
}
samples = tempList;
foreach (Sample* sample, samples)
{
SampleParams * sp = new SampleParams(sample);
ui->samplesWidget->layout()->addWidget(sp);
}
stateSaved = true;
QFileInfo info(file);
stateName = info.baseName();
stateFile = file;
setWindowTitle(stateName + " - DamnSampler");
}
else
QMessageBox::critical(this, "Error", QString("File %1 is not a valid state file!").arg(file), QMessageBox::Ok);
}
else
QMessageBox::critical(this, "Error", QString("File %1 is not a valid state file!").arg(file), QMessageBox::Ok);
}
else
QMessageBox::critical(this, "Error", QString("Can\'t open file %1!").arg(file), QMessageBox::Ok);
}
}
void SamplerWindow::onSampleChanged()
{
stateSaved = false;
}
void SamplerWindow::on_actionAdd_sample_triggered()
{
bool wasRunning = running;
if (running)
on_actionStop_triggered();
if (samples.count() < MAX_CHANNELS)
{
NewSampleDialog * dlg = new NewSampleDialog(0, system, this);
if (dlg->exec() == QDialog::Accepted)
{
Sample * sample = new Sample(dlg->getName(), dlg->getFileName(), dlg->getLoopType(), dlg->keyboardKey(), system, samples.count());
samples.append(sample);
SampleParams * sp = new SampleParams(sample);
ui->samplesWidget->layout()->addWidget(sp);
stateSaved = false;
}
dlg->deleteLater();
}
else
QMessageBox::critical(this, "No free channels", QString("Only %1 channels are allowed in this version.").arg(MAX_CHANNELS), QMessageBox::Ok);
if (wasRunning)
on_actionStart_triggered();
}
void SamplerWindow::on_actionStart_triggered()
{
if (!running)
{
grabKeyboard();
running = true;
ui->actionStart->setEnabled(false);
ui->actionStop->setEnabled(true);
}
}
void SamplerWindow::on_actionStop_triggered()
{
if (running)
{
releaseKeyboard();
running = false;
ui->actionStart->setEnabled(true);
ui->actionStop->setEnabled(false);
foreach(Sample * sample, samples)
sample->stop();
}
}
void SamplerWindow::on_actionSave_state_triggered()
{
if (stateName.isEmpty() || stateFile.isEmpty())
{
QString file = QFileDialog::getSaveFileName(this, "Save state", lastStateDir, "Sampler state files (*.ssf)");
QFileInfo finfo(file);
lastStateDir = finfo.dir().absolutePath();
saveSamplerState(file);
}
else
saveSamplerState(stateFile);
}
void SamplerWindow::on_actionRestore_state_triggered()
{
QString file = QFileDialog::getOpenFileName(this, "Restore state", lastStateDir, "Sampler state files (*.ssf)");
QFileInfo finfo(file);
lastStateDir = finfo.dir().absolutePath();
loadSamplerState(file);
}
void SamplerWindow::on_actionClear_state_triggered()
{
if ((!stateSaved) && (QMessageBox::question(this, "Clear state", "Do you want to save current state?", QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes))
on_actionSave_state_triggered();
foreach(Sample* sample, samples)
sample->deleteLater();
samples.clear();
foreach(QObject * obj, ui->samplesWidget->children())
{
SampleParams * sp = qobject_cast<SampleParams *>(obj);
if (sp)
{
sp->hide();
sp->deleteLater();
}
}
stateSaved = true;
setWindowTitle("DamnSampler");
}
void SamplerWindow::on_actionRemove_sample_triggered()
{
if (qApp->focusWidget())
{
SampleParams * p = qobject_cast<SampleParams *>(qApp->focusWidget()->parent());
if (p)
{
p->hide();
samples.removeOne(p->sample());
p->sample()->deleteLater();
p->deleteLater();
}
}
}
void SamplerWindow::on_actionEdit_sample_triggered()
{
if (qApp->focusWidget())
{
SampleParams * p = qobject_cast<SampleParams *>(qApp->focusWidget()->parent());
if (p)
{
NewSampleDialog * dlg = new NewSampleDialog(p->sample(), system, this);
if (dlg->exec() == QDialog::Accepted)
{
p->sample()->setName(dlg->getName());
p->sample()->setFileName(dlg->getFileName());
p->sample()->setKey(dlg->keyboardKey());
p->sample()->setLoopType(dlg->getLoopType());
p->updateSampleInfo();
}
dlg->deleteLater();
}
}
}
void SamplerWindow::on_actionExit_triggered()
{
close();
}