renderwidget.cpp 102 KB
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/***************************************************************************
 *   Copyright (C) 2008 by Jean-Baptiste Mardelle (jb@kdenlive.org)        *
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
 ***************************************************************************/

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#include "renderwidget.h"
#include "kdenlivesettings.h"
#include "ui_saveprofile_ui.h"
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#include "timecode.h"
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#include "dialogs/profilesdialog.h"
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#include "klocalizedstring.h"
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#include <KMessageBox>
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#include <KRun>
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#include <KColorScheme>
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#include <KNotification>
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#include <QDebug>
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#include <QDomDocument>
#include <QTreeWidgetItem>
#include <QListWidgetItem>
#include <QHeaderView>
#include <QInputDialog>
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#include <QProcess>
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#include <QDBusConnectionInterface>
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#include <QThread>
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#include <QScriptEngine>
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#include <QKeyEvent>
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#include <QTimer>
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#include <QStandardPaths>
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#include "locale.h"

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// Render profiles roles
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enum {GroupRole = Qt::UserRole,
      ExtensionRole,
      StandardRole,
      RenderRole,
      ParamsRole,
      EditableRole,
      MetaGroupRole,
      ExtraRole,
      BitratesRole,
      DefaultBitrateRole,
      AudioBitratesRole,
      DefaultAudioBitrateRole
     };
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// Render job roles
const int ParametersRole = Qt::UserRole + 1;
const int TimeRole = Qt::UserRole + 2;
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const int ProgressRole = Qt::UserRole + 3;
const int ExtraInfoRole = Qt::UserRole + 5;
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const int DirectRenderType = QTreeWidgetItem::Type;
const int ScriptRenderType = QTreeWidgetItem::UserType;
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// Running job status
const int WAITINGJOB = 0;
const int RUNNINGJOB = 1;
const int FINISHEDJOB = 2;
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const int FAILEDJOB = 3;
const int ABORTEDJOB = 4;


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RenderJobItem::RenderJobItem(QTreeWidget * parent, const QStringList & strings, int type)
    : QTreeWidgetItem(parent, strings, type),
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    m_status(-1)
{
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    setSizeHint(1, QSize(parent->columnWidth(1), parent->fontMetrics().height() * 3));
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    setStatus(WAITINGJOB);
}

void RenderJobItem::setStatus(int status)
{
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    if (m_status == status)
        return;
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    m_status = status;
    switch (status) {
        case WAITINGJOB:
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            setIcon(0, QIcon::fromTheme("media-playback-pause"));
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            setData(1, Qt::UserRole, i18n("Waiting..."));
            break;
        case FINISHEDJOB:
            setData(1, Qt::UserRole, i18n("Rendering finished"));
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            setIcon(0, QIcon::fromTheme("dialog-ok"));
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            setData(1, ProgressRole, 100);
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            break;
        case FAILEDJOB:
            setData(1, Qt::UserRole, i18n("Rendering crashed"));
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            setIcon(0, QIcon::fromTheme("dialog-close"));
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            setData(1, ProgressRole, 100);
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            break;
        case ABORTEDJOB:
            setData(1, Qt::UserRole, i18n("Rendering aborted"));
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            setIcon(0, QIcon::fromTheme("dialog-cancel"));
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            setData(1, ProgressRole, 100);
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        default:
            break;
    }
}

int RenderJobItem::status() const
{
    return m_status;
}

void RenderJobItem::setMetadata(const QString &data)
{
    m_data = data;
}

const QString RenderJobItem::metadata() const
{
    return m_data;
}
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RenderWidget::RenderWidget(const QString &projectfolder, bool enableProxy, const MltVideoProfile &profile, QWidget * parent) :
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        QDialog(parent),
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        m_projectFolder(projectfolder),
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        m_profile(profile),
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        m_blockProcessing(false)
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{
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    m_view.setupUi(this);
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    int size = style()->pixelMetric(QStyle::PM_SmallIconSize);
    QSize iconSize(size, size);
    
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    setWindowTitle(i18n("Rendering"));
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    m_view.buttonDelete->setIconSize(iconSize);
    m_view.buttonEdit->setIconSize(iconSize);
    m_view.buttonSave->setIconSize(iconSize);
    m_view.buttonInfo->setIconSize(iconSize);
    m_view.buttonFavorite->setIconSize(iconSize);
    
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    m_view.buttonDelete->setIcon(QIcon::fromTheme("trash-empty"));
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    m_view.buttonDelete->setToolTip(i18n("Delete profile"));
    m_view.buttonDelete->setEnabled(false);

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    m_view.buttonEdit->setIcon(QIcon::fromTheme("document-properties"));
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    m_view.buttonEdit->setToolTip(i18n("Edit profile"));
    m_view.buttonEdit->setEnabled(false);

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    m_view.buttonSave->setIcon(QIcon::fromTheme("document-new"));
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    m_view.buttonSave->setToolTip(i18n("Create new profile"));

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    m_view.buttonInfo->setIcon(QIcon::fromTheme("help-about"));
    m_view.hide_log->setIcon(QIcon::fromTheme("go-down"));
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    m_view.buttonFavorite->setIcon(QIcon::fromTheme("favorites"));
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    m_view.buttonFavorite->setToolTip(i18n("Copy profile to favorites"));
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    m_view.show_all_profiles->setToolTip(i18n("Show profiles with different framerate"));
    
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    m_view.advanced_params->setMaximumHeight(QFontMetrics(font()).lineSpacing() * 5);
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    m_view.buttonRender->setEnabled(false);
    m_view.buttonGenerateScript->setEnabled(false);
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    setRescaleEnabled(false);
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    m_view.guides_box->setVisible(false);
    m_view.open_dvd->setVisible(false);
    m_view.create_chapter->setVisible(false);
    m_view.open_browser->setVisible(false);
    m_view.error_box->setVisible(false);
    m_view.tc_type->setEnabled(false);
    m_view.checkTwoPass->setEnabled(false);
    
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    if (KdenliveSettings::showrenderparams()) {
        m_view.buttonInfo->setDown(true);
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    } else {
        m_view.advanced_params->hide();
    }
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    m_view.proxy_render->setHidden(!enableProxy);
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    KColorScheme scheme(palette().currentColorGroup(), KColorScheme::Window, KSharedConfig::openConfig(KdenliveSettings::colortheme()));
    QColor bg = scheme.background(KColorScheme::NegativeBackground).color();
    m_view.errorBox->setStyleSheet(QString("QGroupBox { background-color: rgb(%1, %2, %3); border-radius: 5px;}; ").arg(bg.red()).arg(bg.green()).arg(bg.blue()));
    int height = QFontInfo(font()).pixelSize();
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    m_view.errorIcon->setPixmap(QIcon::fromTheme("dialog-warning").pixmap(height, height));
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    m_view.errorBox->setHidden(true);

    m_infoMessage = new KMessageWidget;
    QGridLayout *s =  static_cast <QGridLayout*> (m_view.tab->layout());
    s->addWidget(m_infoMessage, 16, 0, 1, -1);
    m_infoMessage->setCloseButtonVisible(false);
    m_infoMessage->hide();

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    m_view.encoder_threads->setMaximum(QThread::idealThreadCount());
    m_view.encoder_threads->setValue(KdenliveSettings::encodethreads());
    connect(m_view.encoder_threads, SIGNAL(valueChanged(int)), this, SLOT(slotUpdateEncodeThreads(int)));

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    m_view.rescale_keep->setChecked(KdenliveSettings::rescalekeepratio());
    connect(m_view.rescale_width, SIGNAL(valueChanged(int)), this, SLOT(slotUpdateRescaleWidth(int)));
    connect(m_view.rescale_height, SIGNAL(valueChanged(int)), this, SLOT(slotUpdateRescaleHeight(int)));
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    m_view.rescale_keep->setIcon(QIcon::fromTheme("insert-link"));
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    m_view.rescale_keep->setToolTip(i18n("Preserve aspect ratio"));
    connect(m_view.rescale_keep, SIGNAL(clicked()), this, SLOT(slotSwitchAspectRatio()));
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    connect(m_view.buttonRender, SIGNAL(clicked()), this, SLOT(slotPrepareExport()));
    connect(m_view.buttonGenerateScript, SIGNAL(clicked()), this, SLOT(slotGenerateScript()));

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    m_view.abort_job->setEnabled(false);
    m_view.start_script->setEnabled(false);
    m_view.delete_script->setEnabled(false);

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    m_view.format_list->setAlternatingRowColors(true);
    m_view.size_list->setAlternatingRowColors(true);
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    connect(m_view.export_audio, SIGNAL(stateChanged(int)), this, SLOT(slotUpdateAudioLabel(int)));
    m_view.export_audio->setCheckState(Qt::PartiallyChecked);

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    parseProfiles();
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    parseScriptFiles();
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    m_view.running_jobs->setUniformRowHeights(false);
    m_view.scripts_list->setUniformRowHeights(false);
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    connect(m_view.start_script, SIGNAL(clicked()), this, SLOT(slotStartScript()));
    connect(m_view.delete_script, SIGNAL(clicked()), this, SLOT(slotDeleteScript()));
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    connect(m_view.scripts_list, SIGNAL(itemSelectionChanged()), this, SLOT(slotCheckScript()));
    connect(m_view.running_jobs, SIGNAL(itemSelectionChanged()), this, SLOT(slotCheckJob()));
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    connect(m_view.running_jobs, SIGNAL(itemDoubleClicked(QTreeWidgetItem*,int)), this, SLOT(slotPlayRendering(QTreeWidgetItem*,int)));
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    connect(m_view.buttonInfo, SIGNAL(clicked()), this, SLOT(showInfoPanel()));

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    connect(m_view.buttonSave, SIGNAL(clicked()), this, SLOT(slotSaveProfile()));
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    connect(m_view.buttonEdit, SIGNAL(clicked()), this, SLOT(slotEditProfile()));
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    connect(m_view.buttonDelete, SIGNAL(clicked()), this, SLOT(slotDeleteProfile()));
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    connect(m_view.buttonFavorite, SIGNAL(clicked()), this, SLOT(slotCopyToFavorites()));

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    connect(m_view.abort_job, SIGNAL(clicked()), this, SLOT(slotAbortCurrentJob()));
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    connect(m_view.start_job, SIGNAL(clicked()), this, SLOT(slotStartCurrentJob()));
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    connect(m_view.clean_up, SIGNAL(clicked()), this, SLOT(slotCLeanUpJobs()));
    connect(m_view.hide_log, SIGNAL(clicked()), this, SLOT(slotHideLog()));

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    connect(m_view.buttonClose, SIGNAL(clicked()), this, SLOT(hide()));
    connect(m_view.buttonClose2, SIGNAL(clicked()), this, SLOT(hide()));
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    connect(m_view.buttonClose3, SIGNAL(clicked()), this, SLOT(hide()));
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    connect(m_view.rescale, SIGNAL(toggled(bool)), this, SLOT(setRescaleEnabled(bool)));
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    connect(m_view.destination_list, SIGNAL(activated(int)), this, SLOT(refreshCategory()));
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    connect(m_view.out_file, SIGNAL(textChanged(QString)), this, SLOT(slotUpdateButtons()));
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    connect(m_view.out_file, SIGNAL(urlSelected(QUrl)), this, SLOT(slotUpdateButtons(QUrl)));
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    connect(m_view.format_list, SIGNAL(currentRowChanged(int)), this, SLOT(refreshView()));
    connect(m_view.size_list, SIGNAL(currentRowChanged(int)), this, SLOT(refreshParams()));
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    connect(m_view.show_all_profiles, SIGNAL(stateChanged(int)), this, SLOT(refreshView()));
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    connect(m_view.size_list, SIGNAL(itemDoubleClicked(QListWidgetItem*)), this, SLOT(slotEditItem(QListWidgetItem*)));
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    connect(m_view.render_guide, SIGNAL(clicked(bool)), this, SLOT(slotUpdateGuideBox()));
    connect(m_view.render_zone, SIGNAL(clicked(bool)), this, SLOT(slotUpdateGuideBox()));
    connect(m_view.render_full, SIGNAL(clicked(bool)), this, SLOT(slotUpdateGuideBox()));

    connect(m_view.guide_end, SIGNAL(activated(int)), this, SLOT(slotCheckStartGuidePosition()));
    connect(m_view.guide_start, SIGNAL(activated(int)), this, SLOT(slotCheckEndGuidePosition()));

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    connect(m_view.tc_overlay, SIGNAL(toggled(bool)), m_view.tc_type, SLOT(setEnabled(bool)));
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    m_view.splitter->setStretchFactor(1, 5);
    m_view.splitter->setStretchFactor(0, 2);
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    m_view.out_file->setMode(KFile::File);
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    m_view.out_file->setFocusPolicy(Qt::ClickFocus);
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    m_view.running_jobs->setHeaderLabels(QStringList() << QString() << i18n("File"));
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    m_jobsDelegate = new RenderViewDelegate(this);
    m_view.running_jobs->setItemDelegate(m_jobsDelegate);
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    QHeaderView *header = m_view.running_jobs->header();
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    header->setSectionResizeMode(0, QHeaderView::Fixed);
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    header->resizeSection(0, 30);
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    header->setSectionResizeMode(1, QHeaderView::Interactive);
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    m_view.scripts_list->setHeaderLabels(QStringList() << QString() << i18n("Script Files"));
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    m_scriptsDelegate = new RenderViewDelegate(this);
    m_view.scripts_list->setItemDelegate(m_scriptsDelegate);
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    header = m_view.scripts_list->header();
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    header->setSectionResizeMode(0, QHeaderView::Fixed);
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    header->resizeSection(0, 30);
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    // Find path for Kdenlive renderer
    m_renderer = QCoreApplication::applicationDirPath() + QString("/kdenlive_render");
    if (!QFile::exists(m_renderer)) {
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        m_renderer = QStandardPaths::findExecutable("kdenlive_render");
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        if (m_renderer.isEmpty())
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            m_renderer = QStandardPaths::findExecutable("kdenlive_render");
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        if (m_renderer.isEmpty())
            m_renderer = "kdenlive_render";
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    }

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    QDBusConnectionInterface* interface = QDBusConnection::sessionBus().interface();
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    if (!interface || (!interface->isServiceRegistered("org.kde.ksmserver") && !interface->isServiceRegistered("org.gnome.SessionManager")))
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        m_view.shutdown->setEnabled(false);

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    focusFirstVisibleItem();
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    adjustSize();
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}

QSize RenderWidget::sizeHint() const
{
    // Make sure the widget has minimum size on opening
    return QSize(200, 200);
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}

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RenderWidget::~RenderWidget()
{
    m_view.running_jobs->blockSignals(true);
    m_view.scripts_list->blockSignals(true);
    m_view.running_jobs->clear();
    m_view.scripts_list->clear();
    delete m_jobsDelegate;
    delete m_scriptsDelegate;
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    delete m_infoMessage;
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}

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void RenderWidget::slotEditItem(QListWidgetItem *item)
{
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    const QString edit = item->data(EditableRole).toString();
    if (edit.isEmpty() || !edit.endsWith(QLatin1String("customprofiles.xml")))
        slotSaveProfile();
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    else slotEditProfile();
}

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void RenderWidget::showInfoPanel()
{
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    if (m_view.advanced_params->isVisible()) {
        m_view.advanced_params->setVisible(false);
        m_view.buttonInfo->setDown(false);
        KdenliveSettings::setShowrenderparams(false);
    } else {
        m_view.advanced_params->setVisible(true);
        m_view.buttonInfo->setDown(true);
        KdenliveSettings::setShowrenderparams(true);
    }
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}

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void RenderWidget::setDocumentPath(const QString &path)
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{
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    if (m_view.out_file->url().adjusted(QUrl::RemoveFilename).path() == QUrl(m_projectFolder).adjusted(QUrl::RemoveFilename).path()) {
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        const QString fileName = m_view.out_file->url().fileName();
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        m_view.out_file->setUrl(QUrl(path + fileName));
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    }
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    m_projectFolder = path;
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    parseScriptFiles();
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}

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void RenderWidget::slotUpdateGuideBox()
{
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    m_view.guides_box->setVisible(m_view.render_guide->isChecked());
}

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void RenderWidget::slotCheckStartGuidePosition()
{
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    if (m_view.guide_start->currentIndex() > m_view.guide_end->currentIndex())
        m_view.guide_start->setCurrentIndex(m_view.guide_end->currentIndex());
}

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void RenderWidget::slotCheckEndGuidePosition()
{
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    if (m_view.guide_end->currentIndex() < m_view.guide_start->currentIndex())
        m_view.guide_end->setCurrentIndex(m_view.guide_start->currentIndex());
}

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void RenderWidget::setGuides(QDomElement guidesxml, double duration)
{
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    m_view.guide_start->clear();
    m_view.guide_end->clear();
    QDomNodeList nodes = guidesxml.elementsByTagName("guide");
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    if (!nodes.isEmpty()) {
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        m_view.guide_start->addItem(i18n("Beginning"), "0");
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        m_view.render_guide->setEnabled(true);
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        m_view.create_chapter->setEnabled(true);
    } else {
        m_view.render_guide->setEnabled(false);
        m_view.create_chapter->setEnabled(false);
    }
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    double fps = (double) m_profile.frame_rate_num / m_profile.frame_rate_den;
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    for (int i = 0; i < nodes.count(); ++i) {
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        QDomElement e = nodes.item(i).toElement();
        if (!e.isNull()) {
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            GenTime pos = GenTime(e.attribute("time").toDouble());
            const QString guidePos = Timecode::getStringTimecode(pos.frames(fps), fps);
            m_view.guide_start->addItem(e.attribute("comment") + '/' + guidePos, e.attribute("time").toDouble());
            m_view.guide_end->addItem(e.attribute("comment") + '/' + guidePos, e.attribute("time").toDouble());
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        }
    }
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    if (!nodes.isEmpty())
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        m_view.guide_end->addItem(i18n("End"), QString::number(duration));
}

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/**
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 * Will be called when the user selects an output file via the file dialog.
 * File extension will be added automatically.
 */
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void RenderWidget::slotUpdateButtons(const QUrl &url)
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{
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    if (m_view.out_file->url().isEmpty()) {
        m_view.buttonGenerateScript->setEnabled(false);
        m_view.buttonRender->setEnabled(false);
    } else {
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        updateButtons(); // This also checks whether the selected format is available
    }
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    if (url.isValid()) {
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        QListWidgetItem *item = m_view.size_list->currentItem();
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        if (!item) {
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            m_view.buttonRender->setEnabled(false);
            m_view.buttonGenerateScript->setEnabled(false);
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            return;
        }
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        const QString extension = item->data(ExtensionRole).toString();
        m_view.out_file->setUrl(filenameWithExtension(url, extension));
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    }
}

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/**
 * Will be called when the user changes the output file path in the text line.
 * File extension must NOT be added, would make editing impossible!
 */
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void RenderWidget::slotUpdateButtons()
{
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    if (m_view.out_file->url().isEmpty()) {
        m_view.buttonRender->setEnabled(false);
        m_view.buttonGenerateScript->setEnabled(false);
    } else {
        updateButtons(); // This also checks whether the selected format is available
    }
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}

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void RenderWidget::slotSaveProfile()
{
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    //TODO: update to correctly use metagroups
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    Ui::SaveProfile_UI ui;
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    QPointer<QDialog> d = new QDialog(this);
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    ui.setupUi(d);
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    for (int i = 0; i < m_view.destination_list->count(); ++i)
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        ui.destination_list->addItem(m_view.destination_list->itemIcon(i), m_view.destination_list->itemText(i), m_view.destination_list->itemData(i, Qt::UserRole));
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    ui.destination_list->setCurrentIndex(m_view.destination_list->currentIndex());
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    QString dest = ui.destination_list->itemData(ui.destination_list->currentIndex(), Qt::UserRole).toString();
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    QString customGroup = m_view.format_list->currentItem()->text();
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    if (customGroup.isEmpty()) customGroup = i18nc("Group Name", "Custom");
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    ui.group_name->setText(customGroup);
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    QStringList arguments = m_view.advanced_params->toPlainText().split(' ', QString::SkipEmptyParts);
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    ui.parameters->setText(arguments.join(" "));
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    ui.extension->setText(m_view.size_list->currentItem()->data(ExtensionRole).toString());
    ui.profile_name->setFocus();
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    QListWidgetItem *item = m_view.size_list->currentItem();
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    if (ui.parameters->toPlainText().contains("%bitrate") || ui.parameters->toPlainText().contains("%quality")) {
        if (ui.parameters->toPlainText().contains("%quality")) {
            ui.vbitrates_label->setText(i18n("Qualities"));
            ui.default_vbitrate_label->setText(i18n("Default quality"));
        } else {
            ui.vbitrates_label->setText(i18n("Bitrates"));
            ui.default_vbitrate_label->setText(i18n("Default bitrate"));
        }
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        if ( item && item->data(BitratesRole).canConvert(QVariant::StringList) && item->data(BitratesRole).toStringList().count()) {
            QStringList bitrates = item->data(BitratesRole).toStringList();
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            ui.vbitrates_list->setText(bitrates.join(","));
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            if (item->data(DefaultBitrateRole).canConvert(QVariant::String))
                ui.default_vbitrate->setValue(item->data(DefaultBitrateRole).toInt());
        }
    }
    else ui.vbitrates->setHidden(true);
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    if (ui.parameters->toPlainText().contains("%audiobitrate") || ui.parameters->toPlainText().contains("%audioquality")) {
        if (ui.parameters->toPlainText().contains("%audioquality")) {
            ui.abitrates_label->setText(i18n("Qualities"));
            ui.default_abitrate_label->setText(i18n("Default quality"));
        } else {
            ui.abitrates_label->setText(i18n("Bitrates"));
            ui.default_abitrate_label->setText(i18n("Default bitrate"));
        }
        if ( item && item->data(AudioBitratesRole).canConvert(QVariant::StringList) && item->data(AudioBitratesRole).toStringList().count()) {
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            QStringList bitrates = item->data(AudioBitratesRole).toStringList();
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            ui.abitrates_list->setText(bitrates.join(","));
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            if (item->data(DefaultAudioBitrateRole).canConvert(QVariant::String))
                ui.default_abitrate->setValue(item->data(DefaultAudioBitrateRole).toInt());
        }
    }
    else ui.abitrates->setHidden(true);
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    if (d->exec() == QDialog::Accepted && !ui.profile_name->text().simplified().isEmpty()) {
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        QString newProfileName = ui.profile_name->text().simplified();
        QString newGroupName = ui.group_name->text().simplified();
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        if (newGroupName.isEmpty()) newGroupName = i18nc("Group Name", "Custom");
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        QString newMetaGroupId = ui.destination_list->itemData(ui.destination_list->currentIndex(), Qt::UserRole).toString();
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        QDomDocument doc;
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        QDomElement profileElement = doc.createElement("profile");
        profileElement.setAttribute("name", newProfileName);
        profileElement.setAttribute("category", newGroupName);
        profileElement.setAttribute("destinationid", newMetaGroupId);
        profileElement.setAttribute("extension", ui.extension->text().simplified());
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        QString args = ui.parameters->toPlainText().simplified();
        profileElement.setAttribute("args", args);
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        if (args.contains("%bitrate")) {
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            // profile has a variable bitrate
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            profileElement.setAttribute("defaultbitrate", QString::number(ui.default_vbitrate->value()));
            profileElement.setAttribute("bitrates", ui.vbitrates_list->text());
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        } else if (args.contains("%quality")) {
            profileElement.setAttribute("defaultquality", QString::number(ui.default_vbitrate->value()));
            profileElement.setAttribute("qualities", ui.vbitrates_list->text());
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        }
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        if (args.contains("%audiobitrate")) {
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            // profile has a variable bitrate
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            profileElement.setAttribute("defaultaudiobitrate", QString::number(ui.default_abitrate->value()));
            profileElement.setAttribute("audiobitrates", ui.abitrates_list->text());
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        } else if (args.contains("%audioquality")) {
            // profile has a variable bitrate
            profileElement.setAttribute("defaultaudioquality", QString::number(ui.default_abitrate->value()));
            profileElement.setAttribute("audioqualities", ui.abitrates_list->text());
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        }
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        doc.appendChild(profileElement);
        saveProfile(doc.documentElement());

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        parseProfiles(newMetaGroupId, newGroupName, newProfileName);
    }
    delete d;
}


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void RenderWidget::saveProfile(const QDomElement &newprofile)
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{
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    QString exportFile = QStandardPaths::writableLocation(QStandardPaths::DataLocation) + "/export/customprofiles.xml";
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    QDomDocument doc;
    QFile file(exportFile);
    doc.setContent(&file, false);
    file.close();
    QDomElement documentElement;
    QDomElement profiles = doc.documentElement();
    if (profiles.isNull() || profiles.tagName() != "profiles") {
        doc.clear();
        profiles = doc.createElement("profiles");
        profiles.setAttribute("version", 1);
        doc.appendChild(profiles);
    }
    int version = profiles.attribute("version", 0).toInt();
    if (version < 1) {
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        //qDebug() << "// OLD profile version";
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        doc.clear();
        profiles = doc.createElement("profiles");
        profiles.setAttribute("version", 1);
        doc.appendChild(profiles);
    }
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    QDomNodeList profilelist = doc.elementsByTagName("profile");
    int i = 0;
    while (!profilelist.item(i).isNull()) {
        // make sure a profile with same name doesn't exist
        documentElement = profilelist.item(i).toElement();
        QString profileName = documentElement.attribute("name");
        if (profileName == newprofile.attribute("name")) {
            // a profile with that same name already exists
            bool ok;
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            QString newProfileName = QInputDialog::getText(this, i18n("Profile already exists"), i18n("This profile name already exists. Change the name if you don't want to overwrite it."), QLineEdit::Normal, profileName, &ok);
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            if (!ok) return;
            if (profileName == newProfileName) {
                profiles.removeChild(profilelist.item(i));
                break;
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            }
        }
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        ++i;
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    }
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    profiles.appendChild(newprofile);
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    //QCString save = doc.toString().utf8();
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    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
        KMessageBox::sorry(this, i18n("Unable to write to file %1", exportFile));
        return;
    }
    QTextStream out(&file);
    out << doc.toString();
    if (file.error() != QFile::NoError) {
        KMessageBox::error(this, i18n("Cannot write to file %1", exportFile));
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        file.close();
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        return;
    }
    file.close();
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}

void RenderWidget::slotCopyToFavorites()
{
    QListWidgetItem *item = m_view.size_list->currentItem();
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    if (!item)
        return;
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    QString currentGroup = m_view.format_list->currentItem()->text();

    QString params = item->data(ParamsRole).toString();
    QString extension = item->data(ExtensionRole).toString();
    QString currentProfile = item->text();
    QDomDocument doc;
    QDomElement profileElement = doc.createElement("profile");
    profileElement.setAttribute("name", currentProfile);
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    profileElement.setAttribute("category", i18nc("Category Name", "Custom"));
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    profileElement.setAttribute("destinationid", "favorites");
    profileElement.setAttribute("extension", extension);
    profileElement.setAttribute("args", params);
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    if (params.contains("%bitrate")) {
        // profile has a variable bitrate
        profileElement.setAttribute("defaultbitrate", item->data(DefaultBitrateRole).toString());
        profileElement.setAttribute("bitrates", item->data(BitratesRole).toStringList().join(","));
    } else if (params.contains("%quality")) {
        profileElement.setAttribute("defaultquality", item->data(DefaultBitrateRole).toString());
        profileElement.setAttribute("qualities", item->data(BitratesRole).toStringList().join(","));
    }
    if (params.contains("%audiobitrate")) {
        // profile has a variable bitrate
        profileElement.setAttribute("defaultaudiobitrate", item->data(DefaultAudioBitrateRole).toString());
        profileElement.setAttribute("audiobitrates", item->data(AudioBitratesRole).toStringList().join(","));
    } else if (params.contains("%audioquality")) {
        // profile has a variable bitrate
        profileElement.setAttribute("defaultaudioquality", item->data(DefaultAudioBitrateRole).toString());
        profileElement.setAttribute("audioqualities", item->data(AudioBitratesRole).toStringList().join(","));
    }
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    doc.appendChild(profileElement);
    saveProfile(doc.documentElement());
    parseProfiles(m_view.destination_list->itemData(m_view.destination_list->currentIndex(), Qt::UserRole).toString(), currentGroup, currentProfile);
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}

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void RenderWidget::slotEditProfile()
{
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    QListWidgetItem *item = m_view.size_list->currentItem();
    if (!item) return;
    QString currentGroup = m_view.format_list->currentItem()->text();

    QString params = item->data(ParamsRole).toString();
    QString extension = item->data(ExtensionRole).toString();
    QString currentProfile = item->text();

    Ui::SaveProfile_UI ui;
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    QPointer<QDialog> d = new QDialog(this);
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    ui.setupUi(d);
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    for (int i = 0; i < m_view.destination_list->count(); ++i)
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        ui.destination_list->addItem(m_view.destination_list->itemIcon(i), m_view.destination_list->itemText(i), m_view.destination_list->itemData(i, Qt::UserRole));

    ui.destination_list->setCurrentIndex(m_view.destination_list->currentIndex());
    QString dest = ui.destination_list->itemData(ui.destination_list->currentIndex(), Qt::UserRole).toString();

    QString customGroup = m_view.format_list->currentItem()->text();
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    if (customGroup.isEmpty()) customGroup = i18nc("Group Name", "Custom");
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    ui.group_name->setText(customGroup);

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    ui.profile_name->setText(currentProfile);
    ui.extension->setText(extension);
    ui.parameters->setText(params);
    ui.profile_name->setFocus();
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    if (ui.parameters->toPlainText().contains("%bitrate") || ui.parameters->toPlainText().contains("%quality")) {
        if (ui.parameters->toPlainText().contains("%quality")) {
            ui.vbitrates_label->setText(i18n("Qualities"));
            ui.default_vbitrate_label->setText(i18n("Default quality"));
        } else {
            ui.vbitrates_label->setText(i18n("Bitrates"));
            ui.default_vbitrate_label->setText(i18n("Default bitrate"));
        }
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        if ( item->data(BitratesRole).canConvert(QVariant::StringList) && item->data(BitratesRole).toStringList().count()) {
            QStringList bitrates = item->data(BitratesRole).toStringList();
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            ui.vbitrates_list->setText(bitrates.join(","));
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            if (item->data(DefaultBitrateRole).canConvert(QVariant::String))
                ui.default_vbitrate->setValue(item->data(DefaultBitrateRole).toInt());
        }
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    } else {
        ui.vbitrates->setHidden(true);
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    }
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    if (ui.parameters->toPlainText().contains("%audiobitrate") || ui.parameters->toPlainText().contains("%audioquality")) {
        if (ui.parameters->toPlainText().contains("%audioquality")) {
            ui.abitrates_label->setText(i18n("Qualities"));
            ui.default_abitrate_label->setText(i18n("Default quality"));
        } else {
            ui.abitrates_label->setText(i18n("Bitrates"));
            ui.default_abitrate_label->setText(i18n("Default bitrate"));
        }
        if ( item->data(AudioBitratesRole).canConvert(QVariant::StringList) && item->data(AudioBitratesRole).toStringList().count()) {
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            QStringList bitrates = item->data(AudioBitratesRole).toStringList();
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            ui.abitrates_list->setText(bitrates.join(","));
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            if (item->data(DefaultAudioBitrateRole).canConvert(QVariant::String))
                ui.default_abitrate->setValue(item->data(DefaultAudioBitrateRole).toInt());
        }
    }
    else ui.abitrates->setHidden(true);
    
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    d->setWindowTitle(i18n("Edit Profile"));
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    if (d->exec() == QDialog::Accepted) {
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        slotDeleteProfile(false);
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        QString exportFile = QStandardPaths::writableLocation(QStandardPaths::DataLocation) + "/export/customprofiles.xml";
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        QDomDocument doc;
        QFile file(exportFile);
        doc.setContent(&file, false);
        file.close();
        QDomElement documentElement;
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        QDomElement profiles = doc.documentElement();

        if (profiles.isNull() || profiles.tagName() != "profiles") {
            doc.clear();
            profiles = doc.createElement("profiles");
            profiles.setAttribute("version", 1);
            doc.appendChild(profiles);
        }

        int version = profiles.attribute("version", 0).toInt();
        if (version < 1) {
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            //qDebug() << "// OLD profile version";
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            doc.clear();
            profiles = doc.createElement("profiles");
            profiles.setAttribute("version", 1);
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            doc.appendChild(profiles);
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        }

        QString newProfileName = ui.profile_name->text().simplified();
        QString newGroupName = ui.group_name->text().simplified();
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        if (newGroupName.isEmpty()) newGroupName = i18nc("Group Name", "Custom");
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        QString newMetaGroupId = ui.destination_list->itemData(ui.destination_list->currentIndex(), Qt::UserRole).toString();
        QDomNodeList profilelist = doc.elementsByTagName("profile");
        int i = 0;
        while (!profilelist.item(i).isNull()) {
            // make sure a profile with same name doesn't exist
            documentElement = profilelist.item(i).toElement();
            QString profileName = documentElement.attribute("name");
            if (profileName == newProfileName) {
                // a profile with that same name already exists
                bool ok;
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                newProfileName = QInputDialog::getText(this, i18n("Profile already exists"), i18n("This profile name already exists. Change the name if you don't want to overwrite it."), QLineEdit::Normal, newProfileName, &ok);
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                if (!ok) return;
                if (profileName == newProfileName) {
                    profiles.removeChild(profilelist.item(i));
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                    break;
                }
            }
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            ++i;
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        }
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        QDomElement profileElement = doc.createElement("profile");
        profileElement.setAttribute("name", newProfileName);
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        profileElement.setAttribute("category", newGroupName);
        profileElement.setAttribute("destinationid", newMetaGroupId);
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        profileElement.setAttribute("extension", ui.extension->text().simplified());
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        QString args = ui.parameters->toPlainText().simplified();
        profileElement.setAttribute("args", args);
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        if (args.contains("%bitrate")) {
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            // profile has a variable bitrate
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            profileElement.setAttribute("defaultbitrate", QString::number(ui.default_vbitrate->value()));
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            profileElement.setAttribute("bitrates", ui.vbitrates_list->text());
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        } else if(args.contains("%quality")) {
            profileElement.setAttribute("defaultquality", QString::number(ui.default_vbitrate->value()));
            profileElement.setAttribute("qualities", ui.vbitrates_list->text());
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        }
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        if (args.contains("%audiobitrate")) {
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            // profile has a variable bitrate
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            profileElement.setAttribute("defaultaudiobitrate", QString::number(ui.default_abitrate->value()));
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            profileElement.setAttribute("audiobitrates", ui.abitrates_list->text());
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        } else if (args.contains("%audioquality")) {
            profileElement.setAttribute("defaultaudioquality", QString::number(ui.default_abitrate->value()));
            profileElement.setAttribute("audioqualities", ui.abitrates_list->text());
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        }

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        profiles.appendChild(profileElement);
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        //QCString save = doc.toString().utf8();
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        delete d;
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        if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
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            KMessageBox::error(this, i18n("Cannot write to file %1", exportFile));
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            return;
        }
        QTextStream out(&file);
        out << doc.toString();
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        if (file.error() != QFile::NoError) {
            KMessageBox::error(this, i18n("Cannot write to file %1", exportFile));
            file.close();
            return;
        }
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        file.close();
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        parseProfiles(newMetaGroupId, newGroupName, newProfileName);
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    } else delete d;
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}

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void RenderWidget::slotDeleteProfile(bool refresh)
{
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    //TODO: delete a profile installed by KNewStuff the easy way
    /*
    QString edit = m_view.size_list->currentItem()->data(EditableRole).toString();
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    if (!edit.endsWith(QLatin1String("customprofiles.xml"))) {
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        // This is a KNewStuff installed file, process through KNS
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        KNS::Engine engine(0);
        if (engine.init("kdenlive_render.knsrc")) {
            KNS::Entry::List entries;
        }
        return;
    }*/
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    QString currentGroup = m_view.format_list->currentItem()->text();
    QString currentProfile = m_view.size_list->currentItem()->text();
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    QString metaGroupId = m_view.destination_list->itemData(m_view.destination_list->currentIndex(), Qt::UserRole).toString();
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    QString exportFile = QStandardPaths::writableLocation(QStandardPaths::DataLocation) + "/export/customprofiles.xml";
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    QDomDocument doc;
    QFile file(exportFile);
    doc.setContent(&file, false);
    file.close();

    QDomElement documentElement;
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    QDomNodeList profiles = doc.elementsByTagName("profile");
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    int i = 0;
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    QString groupName;
    QString profileName;
    QString destination;
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    while (!profiles.item(i).isNull()) {
        documentElement = profiles.item(i).toElement();
        profileName = documentElement.attribute("name");
        groupName = documentElement.attribute("category");
        destination = documentElement.attribute("destinationid");

        if (profileName == currentProfile && groupName == currentGroup && destination == metaGroupId) {
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            //qDebug() << "// GOT it: " << profileName;
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            doc.documentElement().removeChild(profiles.item(i));
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            break;
        }
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        ++i;
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    }

    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
        KMessageBox::sorry(this, i18n("Unable to write to file %1", exportFile));
        return;
    }
    QTextStream out(&file);
    out << doc.toString();
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    if (file.error() != QFile::NoError) {
        KMessageBox::error(this, i18n("Cannot write to file %1", exportFile));
        file.close();
        return;
    }
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    file.close();
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    if (refresh) {
        parseProfiles(metaGroupId, currentGroup);
        focusFirstVisibleItem();
    }
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}

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void RenderWidget::updateButtons()
{
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    if (!m_view.size_list->currentItem() || m_view.size_list->currentItem()->isHidden()) {
        m_view.buttonSave->setEnabled(false);
        m_view.buttonDelete->setEnabled(false);
        m_view.buttonEdit->setEnabled(false);
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        m_view.buttonRender->setEnabled(false);
        m_view.buttonGenerateScript->setEnabled(false);
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    } else {
        m_view.buttonSave->setEnabled(true);
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        m_view.buttonRender->setEnabled(m_view.size_list->currentItem()->toolTip().isEmpty());
        m_view.buttonGenerateScript->setEnabled(m_view.size_list->currentItem()->toolTip().isEmpty());
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        QString edit = m_view.size_list->currentItem()->data(EditableRole).toString();
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        if (edit.isEmpty() || !edit.endsWith(QLatin1String("customprofiles.xml"))) {
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            m_view.buttonDelete->setEnabled(false);
            m_view.buttonEdit->setEnabled(false);
        } else {
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            m_view.buttonDelete->setEnabled(true);
            m_view.buttonEdit->setEnabled(true);
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        }
    }
}


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void RenderWidget::focusFirstVisibleItem(const QString &profile)
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{
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    if (!profile.isEmpty()) {
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        QList <QListWidgetItem *> child = m_view.size_list->findItems(profile, Qt::MatchExactly);
        if (!child.isEmpty())
            m_view.size_list->setCurrentItem(child.at(0));
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    }
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    if (m_view.size_list->currentItem()) {
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        updateButtons();
        return;
    }
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    m_view.size_list->setCurrentRow(0);
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    updateButtons();
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}

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void RenderWidget::slotPrepareExport(bool scriptExport)
{
    if (!QFile::exists(KdenliveSettings::rendererpath())) {
        KMessageBox::sorry(this, i18n("Cannot find the melt program required for rendering (part of Mlt)"));
        return;
    }
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    if (m_view.play_after->isChecked() && KdenliveSettings::defaultplayerapp().isEmpty()) {
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        KMessageBox::sorry(this, i18n("Cannot play video after rendering because the default video player application is not set.\nPlease define it in Kdenlive settings dialog."));
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    }
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    QString chapterFile;
    if (m_view.create_chapter->isChecked()) chapterFile = m_view.out_file->url().path() + ".dvdchapter";
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    // mantisbt 1051
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    QDir dir;
    if (!dir.mkpath(m_view.out_file->url().adjusted(QUrl::RemoveFilename).path())) {
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        KMessageBox::sorry(this, i18n("The directory %1, could not be created.\nPlease make sure you have the required permissions.", m_view.out_file->url().adjusted(QUrl::RemoveFilename).path()));
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        return;
    }
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    emit prepareRenderingData(scriptExport, m_view.render_zone->isChecked(), chapterFile);
}


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void RenderWidget::slotExport(bool scriptExport, int zoneIn, int zoneOut, const QMap<QString, QString> &metadata, const QString &playlistPath, const QString &scriptPath, bool exportAudio)
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{
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    QListWidgetItem *item = m_view.size_list->currentItem();
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    if (!item)
        return;
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    QString dest = m_view.out_file->url().path().trimmed();
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    if (dest.isEmpty())
        return;
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    // Check whether target file has an extension.
    // If not, ask whether extension should be added or not.
    QString extension = item->data(ExtensionRole).toString();
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    if (!dest.endsWith(extension, Qt::CaseInsensitive)) {
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        if (KMessageBox::questionYesNo(this, i18n("File has no extension. Add extension (%1)?", extension)) == KMessageBox::Yes) {
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            dest.append('.' + extension);
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        }
    }
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    // Checks for image sequence
    if (extension == "jpg" || extension == "png") {
        // format string for counter?
        if(!QRegExp(".*%[0-9]*d.*").exactMatch(dest)) {
            dest = dest.section('.',0,-2) + "_%05d." + extension;
        }
    }
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    QFile f(dest);
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    if (f.exists()) {
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        if (KMessageBox::warningYesNo(this, i18n("Output file already exists. Do you want to overwrite it?")) != KMessageBox::Yes)