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okular/ui/propertiesdialog.cpp
Kevin Funk a53a2402ca clang-tidy: modernize-use-nullptr run 
Semi-ACK'd by Albert :)
2017-09-06 00:19:48 +02:00

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/***************************************************************************
* Copyright (C) 2004 by Albert Astals Cid <aacid@kde.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. *
***************************************************************************/
#include "propertiesdialog.h"
// qt/kde includes
#include <QApplication>
#include <QDesktopWidget>
#include <QFormLayout>
#include <QFile>
#include <QFileDialog>
#include <QIcon>
#include <QLayout>
#include <QLatin1Char>
#include <QHeaderView>
#include <QMenu>
#include <QProgressBar>
#include <QPushButton>
#include <QSortFilterProxyModel>
#include <QTreeView>
#include <QTimer>
#include <KIconLoader>
#include <KLocalizedString>
#include <KMessageBox>
#include <KSqueezedTextLabel>
#include <QMimeDatabase>
// local includes
#include "core/document.h"
#include "core/fontinfo.h"
static const int IsExtractableRole = Qt::UserRole;
static const int FontInfoRole = Qt::UserRole + 1;
PropertiesDialog::PropertiesDialog(QWidget *parent, Okular::Document *doc)
: KPageDialog( parent ), m_document( doc ), m_fontPage( nullptr ),
m_fontModel( nullptr ), m_fontInfo( nullptr ), m_fontProgressBar( nullptr ),
m_fontScanStarted( false )
{
setFaceType( Tabbed );
setWindowTitle( i18n( "Unknown File" ) );
setStandardButtons( QDialogButtonBox::Ok );
// PROPERTIES
QFrame *page = new QFrame();
KPageWidgetItem *item = addPage( page, i18n( "&Properties" ) );
item->setIcon( QIcon::fromTheme( QStringLiteral("document-properties") ) );
// get document info
const Okular::DocumentInfo info = doc->documentInfo();
QFormLayout *layout = new QFormLayout( page );
// mime name based on mimetype id
QString mimeName = info.get( Okular::DocumentInfo::MimeType ).section( QLatin1Char('/'), -1 ).toUpper();
setWindowTitle( i18n( "%1 Properties", mimeName ) );
/* obtains the properties list, conveniently ordered */
QStringList orderedProperties;
orderedProperties << Okular::DocumentInfo::getKeyString( Okular::DocumentInfo::FilePath )
<< Okular::DocumentInfo::getKeyString( Okular::DocumentInfo::PagesSize )
<< Okular::DocumentInfo::getKeyString( Okular::DocumentInfo::DocumentSize );
for (Okular::DocumentInfo::Key ks = Okular::DocumentInfo::Title;
ks <= Okular::DocumentInfo::Keywords;
ks = Okular::DocumentInfo::Key( ks+1 ) )
{
orderedProperties << Okular::DocumentInfo::getKeyString( ks );
}
foreach( const QString &ks, info.keys()) {
if ( !orderedProperties.contains( ks ) ) {
orderedProperties << ks;
}
}
for ( QStringList::Iterator it = orderedProperties.begin();
it != orderedProperties.end();
++it )
{
const QString key = *it;
const QString titleString = info.getKeyTitle( key );
const QString valueString = info.get( key );
if ( titleString.isNull() || valueString.isNull() )
continue;
// create labels and layout them
QWidget *value = nullptr;
if ( key == Okular::DocumentInfo::getKeyString( Okular::DocumentInfo::MimeType ) ) {
/// for mime type fields, show icon as well
value = new QWidget( page );
/// place icon left of mime type's name
QHBoxLayout *hboxLayout = new QHBoxLayout( value );
hboxLayout->setMargin( 0 );
/// retrieve icon and place it in a QLabel
QMimeDatabase db;
QMimeType mimeType = db.mimeTypeForName( valueString );
KSqueezedTextLabel *squeezed;
if (mimeType.isValid()) {
/// retrieve icon and place it in a QLabel
QLabel *pixmapLabel = new QLabel( value );
hboxLayout->addWidget( pixmapLabel, 0 );
pixmapLabel->setPixmap( KIconLoader::global()->loadMimeTypeIcon( mimeType.iconName(), KIconLoader::Small ) );
/// mime type's name and label
squeezed = new KSqueezedTextLabel( i18nc( "mimetype information, example: \"PDF Document (application/pdf)\"", "%1 (%2)", mimeType.comment(), valueString ), value );
} else {
/// only mime type name
squeezed = new KSqueezedTextLabel( valueString, value );
}
squeezed->setTextInteractionFlags( Qt::TextSelectableByMouse );
hboxLayout->addWidget( squeezed, 1 );
} else {
/// default for any other document information
KSqueezedTextLabel *label = new KSqueezedTextLabel( valueString, page );
label->setTextInteractionFlags( Qt::TextSelectableByMouse );
value = label;
}
layout->addRow( new QLabel( i18n( "%1:", titleString ) ), value);
}
// FONTS
if ( doc->canProvideFontInformation() ) {
// create fonts tab and layout it
QFrame *page2 = new QFrame();
m_fontPage = addPage(page2, i18n("&Fonts"));
m_fontPage->setIcon( QIcon::fromTheme( QStringLiteral("preferences-desktop-font") ) );
QVBoxLayout *page2Layout = new QVBoxLayout(page2);
// add a tree view
QTreeView *view = new QTreeView(page2);
view->setContextMenuPolicy(Qt::CustomContextMenu);
connect(view, &QTreeView::customContextMenuRequested, this, &PropertiesDialog::showFontsMenu);
page2Layout->addWidget(view);
view->setRootIsDecorated(false);
view->setAlternatingRowColors(true);
view->setSortingEnabled( true );
// creating a proxy model so we can sort the data
QSortFilterProxyModel *proxymodel = new QSortFilterProxyModel(view);
proxymodel->setDynamicSortFilter( true );
proxymodel->setSortCaseSensitivity( Qt::CaseInsensitive );
m_fontModel = new FontsListModel(view);
proxymodel->setSourceModel(m_fontModel);
view->setModel(proxymodel);
view->sortByColumn( 0, Qt::AscendingOrder );
m_fontInfo = new QLabel( this );
page2Layout->addWidget( m_fontInfo );
m_fontInfo->setText( i18n( "Reading font information..." ) );
m_fontInfo->hide();
m_fontProgressBar = new QProgressBar( this );
page2Layout->addWidget( m_fontProgressBar );
m_fontProgressBar->setRange( 0, 100 );
m_fontProgressBar->setValue( 0 );
m_fontProgressBar->hide();
}
// KPageDialog is a bit buggy, it doesn't fix its own sizeHint, so we have to manually resize
resize(layout->sizeHint());
connect( pageWidget(), SIGNAL(currentPageChanged(KPageWidgetItem*,KPageWidgetItem*)),
this, SLOT(pageChanged(KPageWidgetItem*,KPageWidgetItem*)) );
}
PropertiesDialog::~PropertiesDialog()
{
m_document->stopFontReading();
}
void PropertiesDialog::pageChanged( KPageWidgetItem *current, KPageWidgetItem * )
{
if ( current == m_fontPage && !m_fontScanStarted )
{
connect(m_document, &Okular::Document::gotFont, m_fontModel, &FontsListModel::addFont);
connect(m_document, &Okular::Document::fontReadingProgress, this, &PropertiesDialog::slotFontReadingProgress);
connect(m_document, &Okular::Document::fontReadingEnded, this, &PropertiesDialog::slotFontReadingEnded);
QTimer::singleShot( 0, this, &PropertiesDialog::reallyStartFontReading );
m_fontScanStarted = true;
}
}
void PropertiesDialog::slotFontReadingProgress( int page )
{
m_fontProgressBar->setValue( m_fontProgressBar->maximum() * ( page + 1 ) / m_document->pages() );
}
void PropertiesDialog::slotFontReadingEnded()
{
m_fontInfo->hide();
m_fontProgressBar->hide();
}
void PropertiesDialog::reallyStartFontReading()
{
m_fontInfo->show();
m_fontProgressBar->show();
m_document->startFontReading();
}
void PropertiesDialog::showFontsMenu(const QPoint &pos)
{
QTreeView *view = static_cast<QTreeView*>(sender());
QModelIndex index = view->indexAt(pos);
if (index.data(IsExtractableRole).toBool())
{
QMenu *menu = new QMenu(this);
menu->addAction( i18nc("@action:inmenu", "&Extract Font") );
QAction *result = menu->exec(view->viewport()->mapToGlobal(pos));
if (result)
{
Okular::FontInfo fi = index.data(FontInfoRole).value<Okular::FontInfo>();
const QString caption = i18n( "Where do you want to save %1?", fi.name() );
const QString path = QFileDialog::getSaveFileName( this, caption, fi.name() );
if ( path.isEmpty() )
return;
QFile f( path );
if ( f.open( QIODevice::WriteOnly ) )
{
f.write( m_document->fontData(fi) );
f.close();
}
else
{
KMessageBox::error( this, i18n( "Could not open \"%1\" for writing. File was not saved.", path ) );
}
}
}
}
FontsListModel::FontsListModel( QObject * parent )
: QAbstractTableModel( parent )
{
}
FontsListModel::~FontsListModel()
{
}
void FontsListModel::addFont( const Okular::FontInfo &fi )
{
beginInsertRows( QModelIndex(), m_fonts.size(), m_fonts.size() );
m_fonts << fi;
endInsertRows();
}
int FontsListModel::columnCount( const QModelIndex &parent ) const
{
return parent.isValid() ? 0 : 3;
}
static QString descriptionForFontType( Okular::FontInfo::FontType type )
{
switch ( type )
{
case Okular::FontInfo::Type1:
return i18n("Type 1");
break;
case Okular::FontInfo::Type1C:
return i18n("Type 1C");
break;
case Okular::FontInfo::Type1COT:
return i18nc("OT means OpenType", "Type 1C (OT)");
break;
case Okular::FontInfo::Type3:
return i18n("Type 3");
break;
case Okular::FontInfo::TrueType:
return i18n("TrueType");
break;
case Okular::FontInfo::TrueTypeOT:
return i18nc("OT means OpenType", "TrueType (OT)");
break;
case Okular::FontInfo::CIDType0:
return i18n("CID Type 0");
break;
case Okular::FontInfo::CIDType0C:
return i18n("CID Type 0C");
break;
case Okular::FontInfo::CIDType0COT:
return i18nc("OT means OpenType", "CID Type 0C (OT)");
break;
case Okular::FontInfo::CIDTrueType:
return i18n("CID TrueType");
break;
case Okular::FontInfo::CIDTrueTypeOT:
return i18nc("OT means OpenType", "CID TrueType (OT)");
break;
case Okular::FontInfo::TeXPK:
return i18n("TeX PK");
break;
case Okular::FontInfo::TeXVirtual:
return i18n("TeX virtual");
break;
case Okular::FontInfo::TeXFontMetric:
return i18n("TeX Font Metric");
break;
case Okular::FontInfo::TeXFreeTypeHandled:
return i18n("TeX FreeType-handled");
break;
case Okular::FontInfo::Unknown:
return i18nc("Unknown font type", "Unknown");
break;
}
return QString();
}
static QString pathOrDescription( const Okular::FontInfo &font )
{
switch ( font.embedType() )
{
case Okular::FontInfo::NotEmbedded:
return font.file();
break;
case Okular::FontInfo::EmbeddedSubset:
return i18n("Embedded (subset)");
break;
case Okular::FontInfo::FullyEmbedded:
return i18n("Fully embedded");
break;
}
return QString();
}
static QString descriptionForEmbedType( Okular::FontInfo::EmbedType type )
{
switch ( type )
{
case Okular::FontInfo::NotEmbedded:
return i18n("No");
break;
case Okular::FontInfo::EmbeddedSubset:
return i18n("Yes (subset)");
break;
case Okular::FontInfo::FullyEmbedded:
return i18n("Yes");
break;
}
return QString();
}
QVariant FontsListModel::data( const QModelIndex &index, int role ) const
{
if ( !index.isValid() || index.row() < 0 || index.row() >= m_fonts.count() )
return QVariant();
switch ( role )
{
case Qt::DisplayRole:
switch ( index.column() )
{
case 0:
{
QString fontname = m_fonts.at( index.row() ).name();
return fontname.isEmpty() ? i18nc( "font name not available (empty)", "[n/a]" ) : fontname;
break;
}
case 1:
return descriptionForFontType( m_fonts.at( index.row() ).type() );
break;
case 2:
return pathOrDescription( m_fonts.at( index.row() ) );
break;
}
break;
case Qt::ToolTipRole:
{
QString fontname = m_fonts.at( index.row() ).name();
if ( fontname.isEmpty() )
fontname = i18n( "Unknown font" );
QString tooltip = QLatin1String( "<html><b>" ) + fontname + QLatin1String( "</b>" );
if ( m_fonts.at( index.row() ).embedType() == Okular::FontInfo::NotEmbedded )
tooltip += QStringLiteral( " (<span style=\"font-family: '%1'\">%2</span>)" ).arg( fontname, fontname );
tooltip += QLatin1String( "<br />" ) + i18n( "Embedded: %1", descriptionForEmbedType( m_fonts.at( index.row() ).embedType() ) );
tooltip += QLatin1String( "</html>" );
return tooltip;
break;
}
case IsExtractableRole:
{
return m_fonts.at( index.row() ).canBeExtracted();
}
case FontInfoRole:
{
QVariant v;
v.setValue( m_fonts.at( index.row() ) );
return v;
}
}
return QVariant();
}
QVariant FontsListModel::headerData( int section, Qt::Orientation orientation, int role ) const
{
if ( orientation != Qt::Horizontal )
return QVariant();
if ( role == Qt::TextAlignmentRole )
return QVariant( Qt::AlignLeft );
if ( role != Qt::DisplayRole )
return QVariant();
switch ( section )
{
case 0: return i18n( "Name" ); break;
case 1: return i18n( "Type" ); break;
case 2: return i18n( "File" ); break;
default:
return QVariant();
}
}
int FontsListModel::rowCount( const QModelIndex &parent ) const
{
return parent.isValid() ? 0 : m_fonts.size();
}
#include "moc_propertiesdialog.cpp"
/* kate: replace-tabs on; indent-width 4; */
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