mirror of
https://invent.kde.org/graphics/okular
synced 2024-11-05 18:34:53 +00:00
301 lines
10 KiB
C++
301 lines
10 KiB
C++
/***************************************************************************
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* Copyright (C) 2006-2007 by Pino Toscano <pino@kde.org> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#include "guiutils.h"
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// qt/kde includes
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#include <QPainter>
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#include <QSvgRenderer>
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#include <QTextDocument>
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#include <QFileDialog>
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#include <QStandardPaths>
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#include <KIconLoader>
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#include <KMessageBox>
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#include <KLocalizedString>
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// local includes
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#include "core/action.h"
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#include "core/annotations.h"
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#include "core/document.h"
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#include <memory>
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struct GuiUtilsHelper
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{
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GuiUtilsHelper()
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{
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}
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QSvgRenderer* svgStamps();
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QList<KIconLoader *> il;
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std::unique_ptr< QSvgRenderer > svgStampFile;
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};
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QSvgRenderer* GuiUtilsHelper::svgStamps()
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{
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if ( !svgStampFile.get() )
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{
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const QString stampFile = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QStringLiteral("okular/pics/stamps.svg") );
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if ( !stampFile.isEmpty() )
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{
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svgStampFile = std::make_unique<QSvgRenderer>( stampFile );
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if ( !svgStampFile->isValid() )
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{
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svgStampFile.reset();
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}
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}
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}
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return svgStampFile.get();
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}
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Q_GLOBAL_STATIC( GuiUtilsHelper, s_data )
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namespace GuiUtils {
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QString captionForAnnotation( const Okular::Annotation * ann )
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{
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Q_ASSERT( ann );
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const bool hasComment = !ann->contents().isEmpty();
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QString ret;
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switch( ann->subType() )
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{
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case Okular::Annotation::AText:
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if( ( (Okular::TextAnnotation*)ann )->textType() == Okular::TextAnnotation::Linked )
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ret = i18n( "Pop-up Note" );
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else
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{
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if( ( (Okular::TextAnnotation*)ann )->inplaceIntent() == Okular::TextAnnotation::TypeWriter )
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ret = i18n( "Typewriter" );
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else
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ret = i18n( "Inline Note" );
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}
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break;
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case Okular::Annotation::ALine:
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if( ( (Okular::LineAnnotation*)ann )->linePoints().count() == 2 )
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ret = hasComment ? i18n( "Straight Line with Comment" ) : i18n( "Straight Line" );
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else
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ret = hasComment ? i18n( "Polygon with Comment" ) : i18n( "Polygon" );
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break;
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case Okular::Annotation::AGeom:
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ret = hasComment ? i18n( "Geometry with Comment" ) : i18n( "Geometry" );
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break;
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case Okular::Annotation::AHighlight:
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switch ( ( (Okular::HighlightAnnotation*)ann )->highlightType() )
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{
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case Okular::HighlightAnnotation::Highlight:
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ret = hasComment ? i18n( "Highlight with Comment" ) : i18n( "Highlight" );
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break;
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case Okular::HighlightAnnotation::Squiggly:
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ret = hasComment ? i18n( "Squiggle with Comment" ) : i18n( "Squiggle" );
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break;
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case Okular::HighlightAnnotation::Underline:
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ret = hasComment ? i18n( "Underline with Comment" ) : i18n( "Underline" );
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break;
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case Okular::HighlightAnnotation::StrikeOut:
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ret = hasComment ? i18n( "Strike Out with Comment" ) : i18n( "Strike Out" );
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break;
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}
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break;
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case Okular::Annotation::AStamp:
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ret = hasComment ? i18n( "Stamp with Comment" ) : i18n( "Stamp" );
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break;
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case Okular::Annotation::AInk:
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ret = hasComment ? i18n( "Freehand Line with Comment" ) : i18n( "Freehand Line" );
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break;
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case Okular::Annotation::ACaret:
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ret = i18n( "Caret" );
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break;
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case Okular::Annotation::AFileAttachment:
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ret = i18n( "File Attachment" );
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break;
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case Okular::Annotation::ASound:
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ret = i18n( "Sound" );
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break;
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case Okular::Annotation::AMovie:
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ret = i18n( "Movie" );
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break;
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case Okular::Annotation::AScreen:
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ret = i18nc( "Caption for a screen annotation", "Screen" );
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break;
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case Okular::Annotation::AWidget:
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ret = i18nc( "Caption for a widget annotation", "Widget" );
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break;
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case Okular::Annotation::ARichMedia:
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ret = i18nc( "Caption for a rich media annotation", "Rich Media" );
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break;
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case Okular::Annotation::A_BASE:
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break;
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}
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return ret;
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}
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QString authorForAnnotation( const Okular::Annotation * ann )
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{
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Q_ASSERT( ann );
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return !ann->author().isEmpty() ? ann->author() : i18nc( "Unknown author", "Unknown" );
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}
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QString contentsHtml( const Okular::Annotation * ann )
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{
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QString text = ann->contents().toHtmlEscaped();
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text.replace( QLatin1Char('\n'), QLatin1String("<br>") );
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return text;
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}
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QString prettyToolTip( const Okular::Annotation * ann )
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{
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Q_ASSERT( ann );
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QString author = authorForAnnotation( ann );
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QString contents = contentsHtml( ann );
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QString tooltip = QStringLiteral( "<qt><b>" ) + i18n( "Author: %1", author ) + QStringLiteral( "</b>" );
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if ( !contents.isEmpty() )
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tooltip += QStringLiteral( "<div style=\"font-size: 4px;\"><hr /></div>" ) + contents;
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tooltip += QLatin1String("</qt>");
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return tooltip;
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}
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QPixmap loadStamp( const QString& nameOrPath, int size, bool keepAspectRatio )
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{
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const QString name = nameOrPath.toLower();
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// _name is the name of an Okular stamp symbols ( multiple symbols in a single *.svg file)
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QSvgRenderer * r = nullptr;
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if ( ( r = s_data->svgStamps() ) && r->elementExists( name ) )
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{
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const QSize stampSize = r->boundsOnElement( name ).size().toSize();
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const QSize pixmapSize = stampSize.scaled( size, size,
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keepAspectRatio ? Qt::KeepAspectRatioByExpanding
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: Qt::IgnoreAspectRatio );
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QPixmap pixmap( pixmapSize );
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pixmap.fill( Qt::transparent );
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QPainter p( &pixmap );
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r->render( &p, name );
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p.end();
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return pixmap;
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}
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// _name is a path (do this before loading as icon name to avoid some rare weirdness )
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QPixmap pixmap;
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pixmap.load( nameOrPath );
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if ( !pixmap.isNull() ) {
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pixmap = pixmap.scaled( size, size,
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keepAspectRatio ? Qt::KeepAspectRatioByExpanding
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: Qt::IgnoreAspectRatio,
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Qt::SmoothTransformation );
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return pixmap;
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}
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// _name is an icon name
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const KIconLoader * il = iconLoader();
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QString path;
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pixmap = il->loadIcon( name, KIconLoader::User, size, KIconLoader::DefaultState, QStringList(), &path, true );
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if ( path.isEmpty() )
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pixmap = il->loadIcon( name, KIconLoader::NoGroup, size );
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return pixmap; // can be a null pixmap
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}
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void addIconLoader( KIconLoader * loader )
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{
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s_data->il.append( loader );
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}
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void removeIconLoader( KIconLoader * loader )
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{
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s_data->il.removeAll( loader );
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}
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KIconLoader* iconLoader()
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{
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return s_data->il.isEmpty() ? KIconLoader::global() : s_data->il.back();
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}
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void saveEmbeddedFile( Okular::EmbeddedFile *ef, QWidget *parent )
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{
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const QString caption = i18n( "Where do you want to save %1?", ef->name() );
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const QString path = QFileDialog::getSaveFileName( parent, caption, ef->name() );
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if ( path.isEmpty() )
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return;
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QFile targetFile( path );
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writeEmbeddedFile( ef, parent, targetFile );
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}
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void writeEmbeddedFile( Okular::EmbeddedFile *ef, QWidget *parent, QFile& target ) {
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if ( !target.open( QIODevice::WriteOnly ) )
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{
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KMessageBox::error( parent, i18n( "Could not open \"%1\" for writing. File was not saved.", target.fileName() ) );
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return;
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}
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target.write( ef->data() );
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target.close();
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}
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Okular::Movie* renditionMovieFromScreenAnnotation( const Okular::ScreenAnnotation *annotation )
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{
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if ( !annotation )
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return nullptr;
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if ( annotation->action() && annotation->action()->actionType() == Okular::Action::Rendition )
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{
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Okular::RenditionAction *renditionAction = static_cast< Okular::RenditionAction * >( annotation->action() );
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return renditionAction->movie();
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}
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return nullptr;
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}
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// from Arthur - qt4
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static inline int qt_div_255(int x) { return (x + (x>>8) + 0x80) >> 8; }
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void colorizeImage( QImage & grayImage, const QColor & color, unsigned int destAlpha )
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{
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// Make sure that the image is Format_ARGB32_Premultiplied
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if ( grayImage.format() != QImage::Format_ARGB32_Premultiplied )
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grayImage = grayImage.convertToFormat( QImage::Format_ARGB32_Premultiplied );
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// iterate over all pixels changing the alpha component value
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unsigned int * data = reinterpret_cast<unsigned int *>(grayImage.bits());
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unsigned int pixels = grayImage.width() * grayImage.height();
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int red = color.red(),
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green = color.green(),
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blue = color.blue();
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int source, sourceSat, sourceAlpha;
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for( unsigned int i = 0; i < pixels; ++i )
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{ // optimize this loop keeping byte order into account
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source = data[i];
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sourceSat = qRed( source );
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int newR = qt_div_255( sourceSat * red ),
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newG = qt_div_255( sourceSat * green ),
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newB = qt_div_255( sourceSat * blue );
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if ( (sourceAlpha = qAlpha( source )) == 255 )
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{
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// use destAlpha
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data[i] = qRgba( newR, newG, newB, destAlpha );
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}
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else
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{
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// use destAlpha * sourceAlpha product
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if ( destAlpha < 255 )
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sourceAlpha = qt_div_255( destAlpha * sourceAlpha );
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data[i] = qRgba( newR, newG, newB, sourceAlpha );
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}
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}
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}
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}
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