src/Dialog_Processing.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2014 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // (at your option) any later version, but always including the *additional*
   9 // restrictions defined in the "License.txt" file.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this program; if not, write to the Free Software Foundation, Inc.,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // http://www.gnu.org/licenses/gpl-2.0.txt
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include "Dialog_Processing.h"
  24
  25 //UIC includes
  26 #include "UIC_ProcessingDialog.h"
  27
  28 //Internal
  29 #include "Global.h"
  30 #include "Model_FileList.h"
  31 #include "Model_Progress.h"
  32 #include "Model_Settings.h"
  33 #include "Thread_Process.h"
  34 #include "Thread_CPUObserver.h"
  35 #include "Thread_RAMObserver.h"
  36 #include "Thread_DiskObserver.h"
  37 #include "Dialog_LogView.h"
  38 #include "Registry_Decoder.h"
  39 #include "Registry_Encoder.h"
  40 #include "Filter_Downmix.h"
  41 #include "Filter_Normalize.h"
  42 #include "Filter_Resample.h"
  43 #include "Filter_ToneAdjust.h"
  44 #include "WinSevenTaskbar.h"
  45
  46 //MUtils
  47 #include <MUtils/Global.h>
  48 #include <MUtils/OSSupport.h>
  49 #include <MUtils/GUI.h>
  50 #include <MUtils/CPUFeatures.h>
  51 #include <MUtils/Sound.h>
  52
  53 //Qt
  54 #include <QApplication>
  55 #include <QRect>
  56 #include <QDesktopWidget>
  57 #include <QMovie>
  58 #include <QMessageBox>
  59 #include <QTimer>
  60 #include <QCloseEvent>
  61 #include <QDesktopServices>
  62 #include <QUrl>
  63 #include <QUuid>
  64 #include <QFileInfo>
  65 #include <QDir>
  66 #include <QMenu>
  67 #include <QSystemTrayIcon>
  68 #include <QProcess>
  69 #include <QProgressDialog>
  70 #include <QResizeEvent>
  71 #include <QTime>
  72 #include <QThreadPool>
  73
  74 #include <math.h>
  75 #include <float.h>
  76
  77 ////////////////////////////////////////////////////////////
  78
  79 //Maximum number of parallel instances
  80 #define MAX_INSTANCES 32U
  81
  82 //Function to calculate the number of instances
  83 static int cores2instances(int cores);
  84
  85 ////////////////////////////////////////////////////////////
  86
  87 #define CHANGE_BACKGROUND_COLOR(WIDGET, COLOR) do \
  88 { \
  89         QPalette palette = WIDGET->palette(); \
  90         palette.setColor(QPalette::Background, COLOR); \
  91         WIDGET->setPalette(palette); \
  92 } \
  93 while(0)
  94
  95 #define SET_PROGRESS_TEXT(TXT) do \
  96 { \
  97         ui->label_progress->setText(TXT); \
  98         m_systemTray->setToolTip(QString().sprintf("LameXP v%d.%02d\n%ls", lamexp_version_major(), lamexp_version_minor(), QString(TXT).utf16())); \
  99 } \
 100 while(0)
 101
 102 #define SET_FONT_BOLD(WIDGET,BOLD) do \
 103 { \
 104         QFont _font = WIDGET->font(); \
 105         _font.setBold(BOLD); WIDGET->setFont(_font); \
 106 } \
 107 while(0)
 108
 109 #define SET_TEXT_COLOR(WIDGET, COLOR) do \
 110 { \
 111         QPalette _palette = WIDGET->palette(); \
 112         _palette.setColor(QPalette::WindowText, (COLOR)); \
 113         _palette.setColor(QPalette::Text, (COLOR)); \
 114         WIDGET->setPalette(_palette); \
 115 } \
 116 while(0)
 117
 118 #define UPDATE_MIN_WIDTH(WIDGET) do \
 119 { \
 120         if(WIDGET->width() > WIDGET->minimumWidth()) WIDGET->setMinimumWidth(WIDGET->width()); \
 121 } \
 122 while(0)
 123
 124 #define PLAY_SOUND_OPTIONAL(NAME, ASYNC) do \
 125 { \
 126         if(m_settings->soundsEnabled()) MUtils::Sound::play_sound((NAME), (ASYNC)); \
 127 } \
 128 while(0)
 129
 130 #define IS_VBR(RC_MODE) ((RC_MODE) == SettingsModel::VBRMode)
 131
 132 ////////////////////////////////////////////////////////////
 133
 134 //Dummy class for UserData
 135 class IntUserData : public QObjectUserData
 136 {
 137 public:
 138         IntUserData(int value) : m_value(value) {/*NOP*/}
 139         int value(void) { return m_value; }
 140         void setValue(int value) { m_value = value; }
 141 private:
 142         int m_value;
 143 };
 144
 145 ////////////////////////////////////////////////////////////
 146 // Constructor
 147 ////////////////////////////////////////////////////////////
 148
 149 ProcessingDialog::ProcessingDialog(FileListModel *fileListModel, const AudioFileModel_MetaInfo *metaInfo, SettingsModel *settings, QWidget *parent)
 150 :
 151         QDialog(parent),
 152         ui(new Ui::ProcessingDialog),
 153         m_systemTray(new QSystemTrayIcon(QIcon(":/icons/cd_go.png"), this)),
 154         m_settings(settings),
 155         m_metaInfo(metaInfo),
 156         m_shutdownFlag(shutdownFlag_None),
 157         m_threadPool(NULL),
 158         m_diskObserver(NULL),
 159         m_cpuObserver(NULL),
 160         m_ramObserver(NULL),
 161         m_progressViewFilter(-1),
 162         m_initThreads(0),
 163         m_defaultColor(new QColor()),
 164         m_firstShow(true)
 165 {
 166         //Init the dialog, from the .ui file
 167         ui->setupUi(this);
 168         setWindowFlags(windowFlags() ^ Qt::WindowContextHelpButtonHint);
 169
 170         //Update the window icon
 171         MUtils::GUI::set_window_icon(this, lamexp_app_icon(), true);
 172
 173         //Update header icon
 174         ui->label_headerIcon->setPixmap(lamexp_app_icon().pixmap(ui->label_headerIcon->size()));
 175
 176         //Setup version info
 177         ui->label_versionInfo->setText(QString().sprintf("v%d.%02d %s (Build %d)", lamexp_version_major(), lamexp_version_minor(), lamexp_version_release(), lamexp_version_build()));
 178         ui->label_versionInfo->installEventFilter(this);
 179
 180         //Register meta type
 181         qRegisterMetaType<QUuid>("QUuid");
 182
 183         //Center window in screen
 184         QRect desktopRect = QApplication::desktop()->screenGeometry();
 185         QRect thisRect = this->geometry();
 186         move((desktopRect.width() - thisRect.width()) / 2, (desktopRect.height() - thisRect.height()) / 2);
 187         setMinimumSize(thisRect.width(), thisRect.height());
 188
 189         //Enable buttons
 190         connect(ui->button_AbortProcess, SIGNAL(clicked()), this, SLOT(abortEncoding()));
 191
 192         //Init progress indicator
 193         m_progressIndicator = new QMovie(":/images/Working.gif");
 194         m_progressIndicator->setCacheMode(QMovie::CacheAll);
 195         ui->label_headerWorking->setMovie(m_progressIndicator);
 196         ui->progressBar->setValue(0);
 197
 198         //Init progress model
 199         m_progressModel = new ProgressModel();
 200         ui->view_log->setModel(m_progressModel);
 201         ui->view_log->verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
 202         ui->view_log->verticalHeader()->hide();
 203         ui->view_log->horizontalHeader()->setResizeMode(QHeaderView::ResizeToContents);
 204         ui->view_log->horizontalHeader()->setResizeMode(0, QHeaderView::Stretch);
 205         ui->view_log->viewport()->installEventFilter(this);
 206         connect(m_progressModel, SIGNAL(rowsInserted(QModelIndex,int,int)), this, SLOT(progressModelChanged()));
 207         connect(m_progressModel, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)), this, SLOT(progressModelChanged()));
 208         connect(m_progressModel, SIGNAL(rowsRemoved(QModelIndex,int,int)), this, SLOT(progressModelChanged()));
 209         connect(m_progressModel, SIGNAL(modelReset()), this, SLOT(progressModelChanged()));
 210         connect(ui->view_log, SIGNAL(activated(QModelIndex)), this, SLOT(logViewDoubleClicked(QModelIndex)));
 211         connect(ui->view_log->horizontalHeader(), SIGNAL(sectionResized(int,int,int)), this, SLOT(logViewSectionSizeChanged(int,int,int)));
 212
 213         //Create context menu
 214         m_contextMenu = new QMenu();
 215         QAction *contextMenuDetailsAction = m_contextMenu->addAction(QIcon(":/icons/zoom.png"), tr("Show details for selected job"));
 216         QAction *contextMenuShowFileAction = m_contextMenu->addAction(QIcon(":/icons/folder_go.png"), tr("Browse Output File Location"));
 217         m_contextMenu->addSeparator();
 218
 219         //Create "filter" context menu
 220         m_progressViewFilterGroup = new QActionGroup(this);
 221         QAction *contextMenuFilterAction[5] = {NULL, NULL, NULL, NULL, NULL};
 222         if(QMenu *filterMenu = m_contextMenu->addMenu(QIcon(":/icons/filter.png"), tr("Filter Log Items")))
 223         {
 224                 contextMenuFilterAction[0] = filterMenu->addAction(m_progressModel->getIcon(ProgressModel::JobRunning), tr("Show Running Only"));
 225                 contextMenuFilterAction[1] = filterMenu->addAction(m_progressModel->getIcon(ProgressModel::JobComplete), tr("Show Succeeded Only"));
 226                 contextMenuFilterAction[2] = filterMenu->addAction(m_progressModel->getIcon(ProgressModel::JobFailed), tr("Show Failed Only"));
 227                 contextMenuFilterAction[3] = filterMenu->addAction(m_progressModel->getIcon(ProgressModel::JobSkipped), tr("Show Skipped Only"));
 228                 contextMenuFilterAction[4] = filterMenu->addAction(m_progressModel->getIcon(ProgressModel::JobState(-1)), tr("Show All Items"));
 229                 if(QAction *act = contextMenuFilterAction[0]) { m_progressViewFilterGroup->addAction(act); act->setCheckable(true); act->setData(ProgressModel::JobRunning); }
 230                 if(QAction *act = contextMenuFilterAction[1]) { m_progressViewFilterGroup->addAction(act); act->setCheckable(true); act->setData(ProgressModel::JobComplete); }
 231                 if(QAction *act = contextMenuFilterAction[2]) { m_progressViewFilterGroup->addAction(act); act->setCheckable(true); act->setData(ProgressModel::JobFailed); }
 232                 if(QAction *act = contextMenuFilterAction[3]) { m_progressViewFilterGroup->addAction(act); act->setCheckable(true); act->setData(ProgressModel::JobSkipped); }
 233                 if(QAction *act = contextMenuFilterAction[4]) { m_progressViewFilterGroup->addAction(act); act->setCheckable(true); act->setData(-1); act->setChecked(true); }
 234         }
 235
 236         //Create info label
 237         if(m_filterInfoLabel = new QLabel(ui->view_log))
 238         {
 239                 m_filterInfoLabel->setFrameShape(QFrame::NoFrame);
 240                 m_filterInfoLabel->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
 241                 m_filterInfoLabel->setUserData(0, new IntUserData(-1));
 242                 SET_FONT_BOLD(m_filterInfoLabel, true);
 243                 SET_TEXT_COLOR(m_filterInfoLabel, Qt::darkGray);
 244                 m_filterInfoLabel->setContextMenuPolicy(Qt::CustomContextMenu);
 245                 connect(m_filterInfoLabel, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(contextMenuTriggered(QPoint)));
 246                 m_filterInfoLabel->hide();
 247         }
 248         if(m_filterInfoLabelIcon = new QLabel(ui->view_log))
 249         {
 250                 m_filterInfoLabelIcon->setFrameShape(QFrame::NoFrame);
 251                 m_filterInfoLabelIcon->setAlignment(Qt::AlignHCenter | Qt::AlignTop);
 252                 m_filterInfoLabelIcon->setContextMenuPolicy(Qt::CustomContextMenu);
 253                 const QIcon &ico = m_progressModel->getIcon(ProgressModel::JobState(-1));
 254                 m_filterInfoLabelIcon->setPixmap(ico.pixmap(16, 16));
 255                 connect(m_filterInfoLabelIcon, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(contextMenuTriggered(QPoint)));
 256                 m_filterInfoLabelIcon->hide();
 257         }
 258
 259         //Connect context menu
 260         ui->view_log->setContextMenuPolicy(Qt::CustomContextMenu);
 261         connect(ui->view_log, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(contextMenuTriggered(QPoint)));
 262         connect(contextMenuDetailsAction, SIGNAL(triggered(bool)), this, SLOT(contextMenuDetailsActionTriggered()));
 263         connect(contextMenuShowFileAction, SIGNAL(triggered(bool)), this, SLOT(contextMenuShowFileActionTriggered()));
 264         for(size_t i = 0; i < 5; i++)
 265         {
 266                 if(contextMenuFilterAction[i]) connect(contextMenuFilterAction[i], SIGNAL(triggered(bool)), this, SLOT(contextMenuFilterActionTriggered()));
 267         }
 268         SET_FONT_BOLD(contextMenuDetailsAction, true);
 269
 270         //Enque jobs
 271         if(fileListModel)
 272         {
 273                 for(int i = 0; i < fileListModel->rowCount(); i++)
 274                 {
 275                         m_pendingJobs.append(fileListModel->getFile(fileListModel->index(i,0)));
 276                 }
 277         }
 278
 279         //Translate
 280         ui->label_headerStatus->setText(QString("<b>%1</b><br>%2").arg(tr("Encoding Files"), tr("Your files are being encoded, please be patient...")));
 281
 282         //Enable system tray icon
 283         connect(m_systemTray, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(systemTrayActivated(QSystemTrayIcon::ActivationReason)));
 284
 285         //Init other vars
 286         m_runningThreads = 0;
 287         m_currentFile = 0;
 288         m_allJobs.clear();
 289         m_succeededJobs.clear();
 290         m_failedJobs.clear();
 291         m_skippedJobs.clear();
 292         m_userAborted = false;
 293         m_forcedAbort = false;
 294         m_timerStart = 0I64;
 295 }
 296
 297 ////////////////////////////////////////////////////////////
 298 // Destructor
 299 ////////////////////////////////////////////////////////////
 300
 301 ProcessingDialog::~ProcessingDialog(void)
 302 {
 303         ui->view_log->setModel(NULL);
 304
 305         if(m_progressIndicator)
 306         {
 307                 m_progressIndicator->stop();
 308         }
 309
 310         if(m_diskObserver)
 311         {
 312                 m_diskObserver->stop();
 313                 if(!m_diskObserver->wait(15000))
 314                 {
 315                         m_diskObserver->terminate();
 316                         m_diskObserver->wait();
 317                 }
 318         }
 319
 320         if(m_cpuObserver)
 321         {
 322                 m_cpuObserver->stop();
 323                 if(!m_cpuObserver->wait(15000))
 324                 {
 325                         m_cpuObserver->terminate();
 326                         m_cpuObserver->wait();
 327                 }
 328         }
 329
 330         if(m_ramObserver)
 331         {
 332                 m_ramObserver->stop();
 333                 if(!m_ramObserver->wait(15000))
 334                 {
 335                         m_ramObserver->terminate();
 336                         m_ramObserver->wait();
 337                 }
 338         }
 339
 340         if(m_threadPool)
 341         {
 342                 if(!m_threadPool->waitForDone(100))
 343                 {
 344                         emit abortRunningTasks();
 345                         m_threadPool->waitForDone();
 346                 }
 347         }
 348
 349         MUTILS_DELETE(m_progressIndicator);
 350         MUTILS_DELETE(m_systemTray);
 351         MUTILS_DELETE(m_diskObserver);
 352         MUTILS_DELETE(m_cpuObserver);
 353         MUTILS_DELETE(m_ramObserver);
 354         MUTILS_DELETE(m_progressViewFilterGroup);
 355         MUTILS_DELETE(m_filterInfoLabel);
 356         MUTILS_DELETE(m_filterInfoLabelIcon);
 357         MUTILS_DELETE(m_contextMenu);
 358         MUTILS_DELETE(m_progressModel);
 359         MUTILS_DELETE(m_threadPool);
 360         MUTILS_DELETE(m_defaultColor);
 361
 362         WinSevenTaskbar::setOverlayIcon(this, NULL);
 363         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarNoState);
 364
 365         MUTILS_DELETE(ui);
 366 }
 367
 368 ////////////////////////////////////////////////////////////
 369 // EVENTS
 370 ////////////////////////////////////////////////////////////
 371
 372 void ProcessingDialog::showEvent(QShowEvent *event)
 373 {
 374         QDialog::showEvent(event);
 375
 376         if(m_firstShow)
 377         {
 378                 static const char *NA = " N/A";
 379
 380                 lamexp_enable_close_button(this, false);
 381                 ui->button_closeDialog->setEnabled(false);
 382                 ui->button_AbortProcess->setEnabled(false);
 383                 m_progressIndicator->start();
 384                 m_systemTray->setVisible(true);
 385
 386                 MUtils::OS::change_process_priority(1);
 387
 388                 ui->label_cpu->setText(NA);
 389                 ui->label_disk->setText(NA);
 390                 ui->label_ram->setText(NA);
 391
 392                 QTimer::singleShot(500, this, SLOT(initEncoding()));
 393                 m_firstShow = false;
 394         }
 395
 396         //Force update geometry
 397         resizeEvent(NULL);
 398 }
 399
 400 void ProcessingDialog::closeEvent(QCloseEvent *event)
 401 {
 402         if(!ui->button_closeDialog->isEnabled())
 403         {
 404                 event->ignore();
 405         }
 406         else
 407         {
 408                 m_systemTray->setVisible(false);
 409         }
 410 }
 411
 412 bool ProcessingDialog::eventFilter(QObject *obj, QEvent *event)
 413 {
 414         if(obj == ui->label_versionInfo)
 415         {
 416                 if(event->type() == QEvent::Enter)
 417                 {
 418                         QPalette palette = ui->label_versionInfo->palette();
 419                         *m_defaultColor = palette.color(QPalette::Normal, QPalette::WindowText);
 420                         palette.setColor(QPalette::Normal, QPalette::WindowText, Qt::red);
 421                         ui->label_versionInfo->setPalette(palette);
 422                 }
 423                 else if(event->type() == QEvent::Leave)
 424                 {
 425                         QPalette palette = ui->label_versionInfo->palette();
 426                         palette.setColor(QPalette::Normal, QPalette::WindowText, *m_defaultColor);
 427                         ui->label_versionInfo->setPalette(palette);
 428                 }
 429                 else if(event->type() == QEvent::MouseButtonPress)
 430                 {
 431                         QUrl url(lamexp_website_url());
 432                         QDesktopServices::openUrl(url);
 433                 }
 434         }
 435
 436         return false;
 437 }
 438
 439 bool ProcessingDialog::event(QEvent *e)
 440 {
 441         switch(e->type())
 442         {
 443         case MUtils::GUI::USER_EVENT_QUERYENDSESSION:
 444                 qWarning("System is shutting down, preparing to abort...");
 445                 if(!m_userAborted) abortEncoding(true);
 446                 return true;
 447         case MUtils::GUI::USER_EVENT_ENDSESSION:
 448                 qWarning("System is shutting down, encoding will be aborted now...");
 449                 if(isVisible())
 450                 {
 451                         while(!close())
 452                         {
 453                                 if(!m_userAborted) abortEncoding(true);
 454                                 qApp->processEvents(QEventLoop::WaitForMoreEvents | QEventLoop::ExcludeUserInputEvents);
 455                         }
 456                 }
 457                 m_pendingJobs.clear();
 458                 return true;
 459         default:
 460                 return QDialog::event(e);
 461         }
 462 }
 463
 464 /*
 465  * Window was resized
 466  */
 467 void ProcessingDialog::resizeEvent(QResizeEvent *event)
 468 {
 469         if(event) QDialog::resizeEvent(event);
 470
 471         if(QWidget *port = ui->view_log->viewport())
 472         {
 473                 QRect geom = port->geometry();
 474                 m_filterInfoLabel->setGeometry(geom.left() + 16, geom.top() + 16, geom.width() - 32, 48);
 475                 m_filterInfoLabelIcon->setGeometry(geom.left() + 16, geom.top() + 64, geom.width() - 32, geom.height() - 80);
 476         }
 477 }
 478
 479 bool ProcessingDialog::winEvent(MSG *message, long *result)
 480 {
 481         return WinSevenTaskbar::handleWinEvent(message, result);
 482 }
 483
 484 ////////////////////////////////////////////////////////////
 485 // SLOTS
 486 ////////////////////////////////////////////////////////////
 487
 488 void ProcessingDialog::initEncoding(void)
 489 {
 490         qDebug("Initializing encoding process...");
 491
 492         m_runningThreads = 0;
 493         m_currentFile = 0;
 494         m_allJobs.clear();
 495         m_succeededJobs.clear();
 496         m_failedJobs.clear();
 497         m_skippedJobs.clear();
 498         m_userAborted = false;
 499         m_forcedAbort = false;
 500         m_playList.clear();
 501
 502         DecoderRegistry::configureDecoders(m_settings);
 503
 504         CHANGE_BACKGROUND_COLOR(ui->frame_header, QColor(Qt::white));
 505         SET_PROGRESS_TEXT(tr("Encoding files, please wait..."));
 506
 507         ui->button_closeDialog->setEnabled(false);
 508         ui->button_AbortProcess->setEnabled(true);
 509         ui->progressBar->setRange(0, m_pendingJobs.count());
 510         ui->checkBox_shutdownComputer->setEnabled(true);
 511         ui->checkBox_shutdownComputer->setChecked(false);
 512
 513         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarNormalState);
 514         WinSevenTaskbar::setTaskbarProgress(this, 0, m_pendingJobs.count());
 515         WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/control_play_blue.png"));
 516
 517         if(!m_diskObserver)
 518         {
 519                 m_diskObserver = new DiskObserverThread(m_settings->customTempPathEnabled() ? m_settings->customTempPath() : MUtils::temp_folder());
 520                 connect(m_diskObserver, SIGNAL(messageLogged(QString,int)), m_progressModel, SLOT(addSystemMessage(QString,int)), Qt::QueuedConnection);
 521                 connect(m_diskObserver, SIGNAL(freeSpaceChanged(quint64)), this, SLOT(diskUsageHasChanged(quint64)), Qt::QueuedConnection);
 522                 m_diskObserver->start();
 523         }
 524         if(!m_cpuObserver)
 525         {
 526                 m_cpuObserver = new CPUObserverThread();
 527                 connect(m_cpuObserver, SIGNAL(currentUsageChanged(double)), this, SLOT(cpuUsageHasChanged(double)), Qt::QueuedConnection);
 528                 m_cpuObserver->start();
 529         }
 530         if(!m_ramObserver)
 531         {
 532                 m_ramObserver = new RAMObserverThread();
 533                 connect(m_ramObserver, SIGNAL(currentUsageChanged(double)), this, SLOT(ramUsageHasChanged(double)), Qt::QueuedConnection);
 534                 m_ramObserver->start();
 535         }
 536
 537         if(!m_threadPool)
 538         {
 539                 unsigned int maximumInstances = qBound(0U, m_settings->maximumInstances(), MAX_INSTANCES);
 540                 if(maximumInstances < 1)
 541                 {
 542                         const MUtils::CPUFetaures::cpu_info_t cpuFeatures = MUtils::CPUFetaures::detect(MUtils::OS::arguments());
 543                         maximumInstances = cores2instances(qBound(1U, cpuFeatures.count, 64U));
 544                 }
 545
 546                 maximumInstances = qBound(1U, maximumInstances, static_cast<unsigned int>(m_pendingJobs.count()));
 547                 if(maximumInstances > 1)
 548                 {
 549                         m_progressModel->addSystemMessage(tr("Multi-threading enabled: Running %1 instances in parallel!").arg(QString::number(maximumInstances)));
 550                 }
 551
 552                 m_threadPool = new QThreadPool();
 553                 m_threadPool->setMaxThreadCount(maximumInstances);
 554         }
 555
 556         m_initThreads = m_threadPool->maxThreadCount();
 557         QTimer::singleShot(100, this, SLOT(initNextJob()));
 558         m_timerStart = MUtils::OS::perfcounter_read();
 559 }
 560
 561 void ProcessingDialog::initNextJob(void)
 562 {
 563         if((m_initThreads > 0) && (!m_userAborted))
 564         {
 565                 startNextJob();
 566                 if(--m_initThreads > 0)
 567                 {
 568                         QTimer::singleShot(32, this, SLOT(initNextJob()));
 569                 }
 570         }
 571 }
 572
 573 void ProcessingDialog::startNextJob(void)
 574 {
 575         if(m_pendingJobs.isEmpty())
 576         {
 577                 qWarning("No more files left, unable to start another job!");
 578                 return;
 579         }
 580
 581         m_currentFile++;
 582         m_runningThreads++;
 583
 584         AudioFileModel currentFile = updateMetaInfo(m_pendingJobs.takeFirst());
 585         bool nativeResampling = false;
 586
 587         //Create encoder instance
 588         AbstractEncoder *encoder = EncoderRegistry::createInstance(m_settings->compressionEncoder(), m_settings, &nativeResampling);
 589
 590         //Create processing thread
 591         ProcessThread *thread = new ProcessThread
 592         (
 593                 currentFile,
 594                 (m_settings->outputToSourceDir() ? QFileInfo(currentFile.filePath()).absolutePath() : m_settings->outputDir()),
 595                 (m_settings->customTempPathEnabled() ? m_settings->customTempPath() : MUtils::temp_folder()),
 596                 encoder,
 597                 m_settings->prependRelativeSourcePath() && (!m_settings->outputToSourceDir())
 598         );
 599
 600         //Add audio filters
 601         if(m_settings->forceStereoDownmix())
 602         {
 603                 thread->addFilter(new DownmixFilter());
 604         }
 605         if((m_settings->samplingRate() > 0) && !nativeResampling)
 606         {
 607                 if(SettingsModel::samplingRates[m_settings->samplingRate()] != currentFile.techInfo().audioSamplerate() || currentFile.techInfo().audioSamplerate() == 0)
 608                 {
 609                         thread->addFilter(new ResampleFilter(SettingsModel::samplingRates[m_settings->samplingRate()]));
 610                 }
 611         }
 612         if((m_settings->toneAdjustBass() != 0) || (m_settings->toneAdjustTreble() != 0))
 613         {
 614                 thread->addFilter(new ToneAdjustFilter(m_settings->toneAdjustBass(), m_settings->toneAdjustTreble()));
 615         }
 616         if(m_settings->normalizationFilterEnabled())
 617         {
 618                 thread->addFilter(new NormalizeFilter(m_settings->normalizationFilterMaxVolume(), m_settings->normalizationFilterEQMode()));
 619         }
 620         if(m_settings->renameOutputFilesEnabled() && (!m_settings->renameOutputFilesPattern().simplified().isEmpty()))
 621         {
 622                 thread->setRenamePattern(m_settings->renameOutputFilesPattern());
 623         }
 624         if(m_settings->overwriteMode() != SettingsModel::Overwrite_KeepBoth)
 625         {
 626                 thread->setOverwriteMode((m_settings->overwriteMode() == SettingsModel::Overwrite_SkipFile), (m_settings->overwriteMode() == SettingsModel::Overwrite_Replaces));
 627         }
 628
 629         m_allJobs.append(thread->getId());
 630
 631         //Connect thread signals
 632         connect(thread, SIGNAL(processFinished()), this, SLOT(doneEncoding()), Qt::QueuedConnection);
 633         connect(thread, SIGNAL(processStateInitialized(QUuid,QString,QString,int)), m_progressModel, SLOT(addJob(QUuid,QString,QString,int)), Qt::QueuedConnection);
 634         connect(thread, SIGNAL(processStateChanged(QUuid,QString,int)), m_progressModel, SLOT(updateJob(QUuid,QString,int)), Qt::QueuedConnection);
 635         connect(thread, SIGNAL(processStateFinished(QUuid,QString,int)), this, SLOT(processFinished(QUuid,QString,int)), Qt::QueuedConnection);
 636         connect(thread, SIGNAL(processMessageLogged(QUuid,QString)), m_progressModel, SLOT(appendToLog(QUuid,QString)), Qt::QueuedConnection);
 637         connect(this, SIGNAL(abortRunningTasks()), thread, SLOT(abort()), Qt::DirectConnection);
 638
 639         //Initialize thread object
 640         if(!thread->init())
 641         {
 642                 qFatal("Fatal Error: Thread initialization has failed!");
 643         }
 644
 645         //Give it a go!
 646         if(!thread->start(m_threadPool))
 647         {
 648                 qWarning("Job failed to start or file was skipped!");
 649         }
 650 }
 651
 652 void ProcessingDialog::abortEncoding(bool force)
 653 {
 654         m_userAborted = true;
 655         if(force) m_forcedAbort = true;
 656         ui->button_AbortProcess->setEnabled(false);
 657         SET_PROGRESS_TEXT(tr("Aborted! Waiting for running jobs to terminate..."));
 658         emit abortRunningTasks();
 659 }
 660
 661 void ProcessingDialog::doneEncoding(void)
 662 {
 663         m_runningThreads--;
 664         ui->progressBar->setValue(ui->progressBar->value() + 1);
 665
 666         if(!m_userAborted)
 667         {
 668                 SET_PROGRESS_TEXT(tr("Encoding: %n file(s) of %1 completed so far, please wait...", "", ui->progressBar->value()).arg(QString::number(ui->progressBar->maximum())));
 669                 WinSevenTaskbar::setTaskbarProgress(this, ui->progressBar->value(), ui->progressBar->maximum());
 670         }
 671
 672         if((!m_pendingJobs.isEmpty()) && (!m_userAborted))
 673         {
 674                 QTimer::singleShot(0, this, SLOT(startNextJob()));
 675                 qDebug("%d files left, starting next job...", m_pendingJobs.count());
 676                 return;
 677         }
 678
 679         if(m_runningThreads > 0)
 680         {
 681                 qDebug("No files left, but still have %u running jobs.", m_runningThreads);
 682                 return;
 683         }
 684
 685         QApplication::setOverrideCursor(Qt::WaitCursor);
 686         qDebug("Running jobs: %u", m_runningThreads);
 687
 688         if(!m_userAborted && m_settings->createPlaylist() && !m_settings->outputToSourceDir())
 689         {
 690                 SET_PROGRESS_TEXT(tr("Creating the playlist file, please wait..."));
 691                 qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
 692                 writePlayList();
 693         }
 694
 695         if(m_userAborted)
 696         {
 697                 CHANGE_BACKGROUND_COLOR(ui->frame_header, QColor("#FFFFE0"));
 698                 WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarErrorState);
 699                 WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/error.png"));
 700                 SET_PROGRESS_TEXT((m_succeededJobs.count() > 0) ? tr("Process was aborted by the user after %n file(s)!", "", m_succeededJobs.count()) : tr("Process was aborted prematurely by the user!"));
 701                 m_systemTray->showMessage(tr("LameXP - Aborted"), tr("Process was aborted by the user."), QSystemTrayIcon::Warning);
 702                 m_systemTray->setIcon(QIcon(":/icons/cd_delete.png"));
 703                 qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
 704                 if(!m_forcedAbort) PLAY_SOUND_OPTIONAL("aborted", false);
 705         }
 706         else
 707         {
 708                 const qint64 counter = MUtils::OS::perfcounter_read();
 709                 const qint64 frequency  = MUtils::OS::perfcounter_freq();
 710                 if((counter >= 0I64) && (frequency >= 0))
 711                 {
 712                         if((m_timerStart >= 0I64) && (m_timerStart < counter))
 713                         {
 714                                 double timeElapsed = static_cast<double>(counter - m_timerStart) / static_cast<double>(frequency);
 715                                 m_progressModel->addSystemMessage(tr("Process finished after %1.").arg(time2text(timeElapsed)), ProgressModel::SysMsg_Performance);
 716                         }
 717                 }
 718
 719                 if(m_failedJobs.count() > 0)
 720                 {
 721                         CHANGE_BACKGROUND_COLOR(ui->frame_header, QColor("#FFF0F0"));
 722                         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarErrorState);
 723                         WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/exclamation.png"));
 724                         if(m_skippedJobs.count() > 0)
 725                         {
 726                                 SET_PROGRESS_TEXT(tr("Error: %1 of %n file(s) failed (%2). Double-click failed items for detailed information!", "", m_failedJobs.count() + m_succeededJobs.count() + m_skippedJobs.count()).arg(QString::number(m_failedJobs.count()), tr("%n file(s) skipped", "", m_skippedJobs.count())));
 727                         }
 728                         else
 729                         {
 730                                 SET_PROGRESS_TEXT(tr("Error: %1 of %n file(s) failed. Double-click failed items for detailed information!", "", m_failedJobs.count() + m_succeededJobs.count()).arg(QString::number(m_failedJobs.count())));
 731                         }
 732                         m_systemTray->showMessage(tr("LameXP - Error"), tr("At least one file has failed!"), QSystemTrayIcon::Critical);
 733                         m_systemTray->setIcon(QIcon(":/icons/cd_delete.png"));
 734                         qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
 735                         PLAY_SOUND_OPTIONAL("error", false);
 736                 }
 737                 else
 738                 {
 739                         CHANGE_BACKGROUND_COLOR(ui->frame_header, QColor("#F0FFF0"));
 740                         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarNormalState);
 741                         WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/accept.png"));
 742                         if(m_skippedJobs.count() > 0)
 743                         {
 744                                 SET_PROGRESS_TEXT(tr("All files completed successfully. Skipped %n file(s).", "", m_skippedJobs.count()));
 745                         }
 746                         else
 747                         {
 748                                 SET_PROGRESS_TEXT(tr("All files completed successfully."));
 749                         }
 750                         m_systemTray->showMessage(tr("LameXP - Done"), tr("All files completed successfully."), QSystemTrayIcon::Information);
 751                         m_systemTray->setIcon(QIcon(":/icons/cd_add.png"));
 752                         qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
 753                         PLAY_SOUND_OPTIONAL("success", false);
 754                 }
 755         }
 756
 757         lamexp_enable_close_button(this, true);
 758         ui->button_closeDialog->setEnabled(true);
 759         ui->button_AbortProcess->setEnabled(false);
 760         ui->checkBox_shutdownComputer->setEnabled(false);
 761
 762         m_progressModel->restoreHiddenItems();
 763         ui->view_log->scrollToBottom();
 764         m_progressIndicator->stop();
 765         ui->progressBar->setValue(ui->progressBar->maximum());
 766         WinSevenTaskbar::setTaskbarProgress(this, ui->progressBar->value(), ui->progressBar->maximum());
 767
 768         QApplication::restoreOverrideCursor();
 769
 770         if(!m_userAborted && ui->checkBox_shutdownComputer->isChecked())
 771         {
 772                 if(shutdownComputer())
 773                 {
 774                         m_shutdownFlag = m_settings->hibernateComputer() ? shutdownFlag_Hibernate : shutdownFlag_TurnPowerOff;
 775                         accept();
 776                 }
 777         }
 778 }
 779
 780 void ProcessingDialog::processFinished(const QUuid &jobId, const QString &outFileName, int success)
 781 {
 782         if(success > 0)
 783         {
 784                 m_playList.insert(jobId, outFileName);
 785                 m_succeededJobs.append(jobId);
 786         }
 787         else if(success < 0)
 788         {
 789                 m_playList.insert(jobId, outFileName);
 790                 m_skippedJobs.append(jobId);
 791         }
 792         else
 793         {
 794                 m_failedJobs.append(jobId);
 795         }
 796
 797         //Update filter as soon as a job finished!
 798         if(m_progressViewFilter >= 0)
 799         {
 800                 QTimer::singleShot(0, this, SLOT(progressViewFilterChanged()));
 801         }
 802 }
 803
 804 void ProcessingDialog::progressModelChanged(void)
 805 {
 806         //Update filter as soon as the model changes!
 807         if(m_progressViewFilter >= 0)
 808         {
 809                 QTimer::singleShot(0, this, SLOT(progressViewFilterChanged()));
 810         }
 811
 812         QTimer::singleShot(0, ui->view_log, SLOT(scrollToBottom()));
 813 }
 814
 815 void ProcessingDialog::logViewDoubleClicked(const QModelIndex &index)
 816 {
 817         if(m_runningThreads == 0)
 818         {
 819                 const QStringList &logFile = m_progressModel->getLogFile(index);
 820
 821                 if(!logFile.isEmpty())
 822                 {
 823                         LogViewDialog *logView = new LogViewDialog(this);
 824                         logView->setWindowTitle(QString("LameXP - [%1]").arg(m_progressModel->data(index, Qt::DisplayRole).toString()));
 825                         logView->exec(logFile);
 826                         MUTILS_DELETE(logView);
 827                 }
 828                 else
 829                 {
 830                         QMessageBox::information(this, windowTitle(), m_progressModel->data(m_progressModel->index(index.row(), 0)).toString());
 831                 }
 832         }
 833         else
 834         {
 835                 MUtils::Sound::beep(MUtils::Sound::BEEP_WRN);
 836         }
 837 }
 838
 839 void ProcessingDialog::logViewSectionSizeChanged(int logicalIndex, int oldSize, int newSize)
 840 {
 841         if(logicalIndex == 1)
 842         {
 843                 if(QHeaderView *hdr = ui->view_log->horizontalHeader())
 844                 {
 845                         hdr->setMinimumSectionSize(qMax(hdr->minimumSectionSize(), hdr->sectionSize(1)));
 846                 }
 847         }
 848 }
 849
 850 void ProcessingDialog::contextMenuTriggered(const QPoint &pos)
 851 {
 852         QAbstractScrollArea *scrollArea = dynamic_cast<QAbstractScrollArea*>(QObject::sender());
 853         QWidget *sender = scrollArea ? scrollArea->viewport() : dynamic_cast<QWidget*>(QObject::sender());
 854
 855         if(pos.x() <= sender->width() && pos.y() <= sender->height() && pos.x() >= 0 && pos.y() >= 0)
 856         {
 857                 m_contextMenu->popup(sender->mapToGlobal(pos));
 858         }
 859 }
 860
 861 void ProcessingDialog::contextMenuDetailsActionTriggered(void)
 862 {
 863         QModelIndex index = ui->view_log->indexAt(ui->view_log->viewport()->mapFromGlobal(m_contextMenu->pos()));
 864         logViewDoubleClicked(index.isValid() ? index : ui->view_log->currentIndex());
 865 }
 866
 867 void ProcessingDialog::contextMenuShowFileActionTriggered(void)
 868 {
 869         QModelIndex index = ui->view_log->indexAt(ui->view_log->viewport()->mapFromGlobal(m_contextMenu->pos()));
 870         const QUuid &jobId = m_progressModel->getJobId(index.isValid() ? index : ui->view_log->currentIndex());
 871         QString filePath = m_playList.value(jobId, QString());
 872
 873         if(filePath.isEmpty())
 874         {
 875                 MUtils::Sound::beep(MUtils::Sound::BEEP_WRN);
 876                 return;
 877         }
 878
 879         if(QFileInfo(filePath).exists())
 880         {
 881                 QString systemRootPath;
 882
 883                 QDir systemRoot(MUtils::OS::known_folder(MUtils::OS::FOLDER_SYSTEMFOLDER));
 884                 if(systemRoot.exists() && systemRoot.cdUp())
 885                 {
 886                         systemRootPath = systemRoot.canonicalPath();
 887                 }
 888
 889                 if(!systemRootPath.isEmpty())
 890                 {
 891                         QFileInfo explorer(QString("%1/explorer.exe").arg(systemRootPath));
 892                         if(explorer.exists() && explorer.isFile())
 893                         {
 894                                 QProcess::execute(explorer.canonicalFilePath(), QStringList() << "/select," << QDir::toNativeSeparators(QFileInfo(filePath).canonicalFilePath()));
 895                                 return;
 896                         }
 897                 }
 898                 else
 899                 {
 900                         qWarning("SystemRoot directory could not be detected!");
 901                 }
 902         }
 903         else
 904         {
 905                 qWarning("File not found: %s", filePath.toLatin1().constData());
 906                 MUtils::Sound::beep(MUtils::Sound::BEEP_ERR);
 907         }
 908 }
 909
 910 void ProcessingDialog::contextMenuFilterActionTriggered(void)
 911 {
 912         if(QAction *action = dynamic_cast<QAction*>(QObject::sender()))
 913         {
 914                 if(action->data().type() == QVariant::Int)
 915                 {
 916                         m_progressViewFilter = action->data().toInt();
 917                         progressViewFilterChanged();
 918                         QTimer::singleShot(0, this, SLOT(progressViewFilterChanged()));
 919                         QTimer::singleShot(0, ui->view_log, SLOT(scrollToBottom()));
 920                         action->setChecked(true);
 921                 }
 922         }
 923 }
 924
 925 /*
 926  * Filter progress items
 927  */
 928 void ProcessingDialog::progressViewFilterChanged(void)
 929 {
 930         bool matchFound = false;
 931
 932         for(int i = 0; i < ui->view_log->model()->rowCount(); i++)
 933         {
 934                 QModelIndex index = (m_progressViewFilter >= 0) ? m_progressModel->index(i, 0) : QModelIndex();
 935                 const bool bHide = index.isValid() ? (m_progressModel->getJobState(index) != m_progressViewFilter) : false;
 936                 ui->view_log->setRowHidden(i, bHide); matchFound = matchFound || (!bHide);
 937         }
 938
 939         if((m_progressViewFilter >= 0) && (!matchFound))
 940         {
 941                 if(m_filterInfoLabel->isHidden() || (dynamic_cast<IntUserData*>(m_filterInfoLabel->userData(0))->value() != m_progressViewFilter))
 942                 {
 943                         dynamic_cast<IntUserData*>(m_filterInfoLabel->userData(0))->setValue(m_progressViewFilter);
 944                         m_filterInfoLabel->setText(QString("<p>&raquo; %1 &laquo;</p>").arg(tr("None of the items matches the current filtering rules")));
 945                         m_filterInfoLabel->show();
 946                         m_filterInfoLabelIcon->setPixmap(m_progressModel->getIcon(static_cast<ProgressModel::JobState>(m_progressViewFilter)).pixmap(16, 16, QIcon::Disabled));
 947                         m_filterInfoLabelIcon->show();
 948                         resizeEvent(NULL);
 949                 }
 950         }
 951         else if(!m_filterInfoLabel->isHidden())
 952         {
 953                 m_filterInfoLabel->hide();
 954                 m_filterInfoLabelIcon->hide();
 955         }
 956 }
 957
 958 ////////////////////////////////////////////////////////////
 959 // Private Functions
 960 ////////////////////////////////////////////////////////////
 961
 962 void ProcessingDialog::writePlayList(void)
 963 {
 964         if(m_succeededJobs.count() <= 0 || m_allJobs.count() <= 0)
 965         {
 966                 qWarning("WritePlayList: Nothing to do!");
 967                 return;
 968         }
 969
 970         //Init local variables
 971         QStringList list;
 972         QRegExp regExp1("\\[\\d\\d\\][^/\\\\]+$", Qt::CaseInsensitive);
 973         QRegExp regExp2("\\(\\d\\d\\)[^/\\\\]+$", Qt::CaseInsensitive);
 974         QRegExp regExp3("\\d\\d[^/\\\\]+$", Qt::CaseInsensitive);
 975         bool usePrefix[3] = {true, true, true};
 976         bool useUtf8 = false;
 977         int counter = 1;
 978
 979         //Generate playlist name
 980         QString playListName = (m_metaInfo->album().isEmpty() ? "Playlist" : m_metaInfo->album());
 981         if(!m_metaInfo->artist().isEmpty())
 982         {
 983                 playListName = QString("%1 - %2").arg(m_metaInfo->artist(), playListName);
 984         }
 985
 986         //Clean playlist name
 987         playListName = MUtils::clean_file_name(playListName);
 988
 989         //Create list of audio files
 990         for(int i = 0; i < m_allJobs.count(); i++)
 991         {
 992                 if(!m_succeededJobs.contains(m_allJobs.at(i))) continue;
 993                 list << QDir::toNativeSeparators(QDir(m_settings->outputDir()).relativeFilePath(m_playList.value(m_allJobs.at(i), "N/A")));
 994         }
 995
 996         //Use prefix?
 997         for(int i = 0; i < list.count(); i++)
 998         {
 999                 if(regExp1.indexIn(list.at(i)) < 0) usePrefix[0] = false;
1000                 if(regExp2.indexIn(list.at(i)) < 0) usePrefix[1] = false;
1001                 if(regExp3.indexIn(list.at(i)) < 0) usePrefix[2] = false;
1002         }
1003         if(usePrefix[0] || usePrefix[1] || usePrefix[2])
1004         {
1005                 playListName.prepend(usePrefix[0] ? "[00] " : (usePrefix[1] ? "(00) " : "00 "));
1006         }
1007
1008         //Do we need an UTF-8 playlist?
1009         for(int i = 0; i < list.count(); i++)
1010         {
1011                 if(wcscmp(MUTILS_WCHR(QString::fromLatin1(list.at(i).toLatin1().constData())), MUTILS_WCHR(list.at(i))))
1012                 {
1013                         useUtf8 = true;
1014                         break;
1015                 }
1016         }
1017
1018         //Generate playlist output file
1019         QString playListFile = QString("%1/%2.%3").arg(m_settings->outputDir(), playListName, (useUtf8 ? "m3u8" : "m3u"));
1020         while(QFileInfo(playListFile).exists())
1021         {
1022                 playListFile = QString("%1/%2 (%3).%4").arg(m_settings->outputDir(), playListName, QString::number(++counter), (useUtf8 ? "m3u8" : "m3u"));
1023         }
1024
1025         //Now write playlist to output file
1026         QFile playList(playListFile);
1027         if(playList.open(QIODevice::WriteOnly))
1028         {
1029                 if(useUtf8)
1030                 {
1031                         playList.write("\xef\xbb\xbf");
1032                 }
1033                 playList.write("#EXTM3U\r\n");
1034                 while(!list.isEmpty())
1035                 {
1036                         playList.write(useUtf8 ? MUTILS_UTF8(list.takeFirst()) : list.takeFirst().toLatin1().constData());
1037                         playList.write("\r\n");
1038                 }
1039                 playList.close();
1040         }
1041         else
1042         {
1043                 QMessageBox::warning(this, tr("Playlist creation failed"), QString("%1<br><nobr>%2</nobr>").arg(tr("The playlist file could not be created:"), playListFile));
1044         }
1045 }
1046
1047 AudioFileModel ProcessingDialog::updateMetaInfo(AudioFileModel &audioFile)
1048 {
1049         if(!m_settings->writeMetaTags())
1050         {
1051                 audioFile.metaInfo().reset();
1052                 return audioFile;
1053         }
1054
1055         audioFile.metaInfo().update(*m_metaInfo, true);
1056
1057         if(audioFile.metaInfo().position() == UINT_MAX)
1058         {
1059                 audioFile.metaInfo().setPosition(m_currentFile);
1060         }
1061
1062         return audioFile;
1063 }
1064
1065 void ProcessingDialog::systemTrayActivated(QSystemTrayIcon::ActivationReason reason)
1066 {
1067         if(reason == QSystemTrayIcon::DoubleClick)
1068         {
1069                 lamexp_bring_to_front(this);
1070         }
1071 }
1072
1073 void ProcessingDialog::cpuUsageHasChanged(const double val)
1074 {
1075
1076         ui->label_cpu->setText(QString().sprintf(" %d%%", qRound(val * 100.0)));
1077         UPDATE_MIN_WIDTH(ui->label_cpu);
1078 }
1079
1080 void ProcessingDialog::ramUsageHasChanged(const double val)
1081 {
1082
1083         ui->label_ram->setText(QString().sprintf(" %d%%", qRound(val * 100.0)));
1084         UPDATE_MIN_WIDTH(ui->label_ram);
1085 }
1086
1087 void ProcessingDialog::diskUsageHasChanged(const quint64 val)
1088 {
1089         int postfix = 0;
1090         const char *postfixStr[6] = {"B", "KB", "MB", "GB", "TB", "PB"};
1091         double space = static_cast<double>(val);
1092
1093         while((space >= 1000.0) && (postfix < 5))
1094         {
1095                 space = space / 1024.0;
1096                 postfix++;
1097         }
1098
1099         ui->label_disk->setText(QString().sprintf(" %3.1f %s", space, postfixStr[postfix]));
1100         UPDATE_MIN_WIDTH(ui->label_disk);
1101 }
1102
1103 bool ProcessingDialog::shutdownComputer(void)
1104 {
1105         const int iTimeout = m_settings->hibernateComputer() ? 10 : 30;
1106         const Qt::WindowFlags flags = Qt::WindowStaysOnTopHint | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::MSWindowsFixedSizeDialogHint | Qt::WindowSystemMenuHint;
1107         const QString text = QString("%1%2%1").arg(QString().fill(' ', 18), tr("Warning: Computer will shutdown in %1 seconds..."));
1108
1109         qWarning("Initiating shutdown sequence!");
1110
1111         QProgressDialog progressDialog(text.arg(iTimeout), tr("Cancel Shutdown"), 0, iTimeout + 1, this, flags);
1112         QPushButton *cancelButton = new QPushButton(tr("Cancel Shutdown"), &progressDialog);
1113         cancelButton->setIcon(QIcon(":/icons/power_on.png"));
1114         progressDialog.setModal(true);
1115         progressDialog.setAutoClose(false);
1116         progressDialog.setAutoReset(false);
1117         progressDialog.setWindowIcon(QIcon(":/icons/power_off.png"));
1118         progressDialog.setCancelButton(cancelButton);
1119         progressDialog.show();
1120
1121         qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
1122
1123         QApplication::setOverrideCursor(Qt::WaitCursor);
1124         PLAY_SOUND_OPTIONAL("shutdown", false);
1125         QApplication::restoreOverrideCursor();
1126
1127         QTimer timer;
1128         timer.setInterval(1000);
1129         timer.start();
1130
1131         QEventLoop eventLoop(this);
1132         connect(&timer, SIGNAL(timeout()), &eventLoop, SLOT(quit()));
1133         connect(&progressDialog, SIGNAL(canceled()), &eventLoop, SLOT(quit()));
1134
1135         for(int i = 1; i <= iTimeout; i++)
1136         {
1137                 eventLoop.exec();
1138                 if(progressDialog.wasCanceled())
1139                 {
1140                         progressDialog.close();
1141                         return false;
1142                 }
1143                 progressDialog.setValue(i+1);
1144                 progressDialog.setLabelText(text.arg(iTimeout-i));
1145                 if(iTimeout-i == 3) progressDialog.setCancelButton(NULL);
1146                 qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
1147                 PLAY_SOUND_OPTIONAL(((i < iTimeout) ? "beep" : "beep2"), false);
1148         }
1149
1150         progressDialog.close();
1151         return true;
1152 }
1153
1154 QString ProcessingDialog::time2text(const double timeVal) const
1155 {
1156         double intPart = 0;
1157         double frcPart = modf(timeVal, &intPart);
1158
1159         QTime time = QTime().addSecs(qRound(intPart)).addMSecs(qRound(frcPart * 1000.0));
1160
1161         QString a, b;
1162
1163         if(time.hour() > 0)
1164         {
1165                 a = tr("%n hour(s)", "", time.hour());
1166                 b = tr("%n minute(s)", "", time.minute());
1167         }
1168         else if(time.minute() > 0)
1169         {
1170                 a = tr("%n minute(s)", "", time.minute());
1171                 b = tr("%n second(s)", "", time.second());
1172         }
1173         else
1174         {
1175                 a = tr("%n second(s)", "", time.second());
1176                 b = tr("%n millisecond(s)", "", time.msec());
1177         }
1178
1179         return QString("%1, %2").arg(a, b);
1180 }
1181
1182 ////////////////////////////////////////////////////////////
1183 // HELPER FUNCTIONS
1184 ////////////////////////////////////////////////////////////
1185
1186 static int cores2instances(int cores)
1187 {
1188         //This function is a "cubic spline" with sampling points at:
1189         //(1,1); (2,2); (4,4); (8,6); (16,8); (32,11); (64,16)
1190         static const double LUT[8][5] =
1191         {
1192                 { 1.0,  0.014353554, -0.043060662, 1.028707108,  0.000000000},
1193                 { 2.0, -0.028707108,  0.215303309, 0.511979167,  0.344485294},
1194                 { 4.0,  0.010016468, -0.249379596, 2.370710784, -2.133823529},
1195                 { 8.0,  0.000282437, -0.015762868, 0.501776961,  2.850000000},
1196                 {16.0,  0.000033270, -0.003802849, 0.310416667,  3.870588235},
1197                 {32.0,  0.000006343, -0.001217831, 0.227696078,  4.752941176},
1198                 {64.0,  0.000000000,  0.000000000, 0.000000000, 16.000000000},
1199                 {DBL_MAX, 0.0, 0.0, 0.0, 0.0}
1200         };
1201
1202         double x = abs(static_cast<double>(cores)), y = 1.0;
1203
1204         for(size_t i = 0; i < 7; i++)
1205         {
1206                 if((x >= LUT[i][0]) && (x < LUT[i+1][0]))
1207                 {
1208                         y = (((((LUT[i][1] * x) + LUT[i][2]) * x) + LUT[i][3]) * x) + LUT[i][4];
1209                         break;
1210                 }
1211         }
1212
1213         return qRound(y);
1214 }