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okular/part.cpp
Pino Toscano 7049feb8de port to the new kdelibs api; mainly ktrader usage and URL -> Url 
svn path=/branches/work/kde4/playground/graphics/okular/; revision=543576
2006-05-22 14:02:24 +00:00

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/***************************************************************************
* Copyright (C) 2002 by Wilco Greven <greven@kde.org> *
* Copyright (C) 2002 by Chris Cheney <ccheney@cheney.cx> *
* Copyright (C) 2002 by Malcolm Hunter <malcolm.hunter@gmx.co.uk> *
* Copyright (C) 2003-2004 by Christophe Devriese *
* <Christophe.Devriese@student.kuleuven.ac.be> *
* Copyright (C) 2003 by Daniel Molkentin <molkentin@kde.org> *
* Copyright (C) 2003 by Andy Goossens <andygoossens@telenet.be> *
* Copyright (C) 2003 by Dirk Mueller <mueller@kde.org> *
* Copyright (C) 2003 by Laurent Montel <montel@kde.org> *
* Copyright (C) 2004 by Dominique Devriese <devriese@kde.org> *
* Copyright (C) 2004 by Christoph Cullmann <crossfire@babylon2k.de> *
* Copyright (C) 2004 by Henrique Pinto <stampede@coltec.ufmg.br> *
* Copyright (C) 2004 by Waldo Bastian <bastian@kde.org> *
* Copyright (C) 2004-2006 by Albert Astals Cid <tsdgeos@terra.es> *
* Copyright (C) 2004 by Antti Markus <antti.markus@starman.ee> *
* *
* 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. *
***************************************************************************/
// qt/kde includes
#include <qsplitter.h>
#include <qpainter.h>
#include <qlayout.h>
#include <qlabel.h>
#include <kvbox.h>
#include <qtoolbox.h>
#include <qpushbutton.h>
#include <dcopobject.h>
#include <dcopclient.h>
#include <kaction.h>
#include <kactioncollection.h>
#include <kdirwatch.h>
#include <kinstance.h>
#include <kprinter.h>
#include <kstdaction.h>
#include <kdeversion.h>
#include <kparts/genericfactory.h>
#include <kfiledialog.h>
#include <kfind.h>
#include <kmessagebox.h>
#include <kmimetypetrader.h>
#include <kfinddialog.h>
#include <knuminput.h>
#include <kiconloader.h>
#include <kio/netaccess.h>
#include <kmenu.h>
#include <kxmlguiclient.h>
#include <kxmlguifactory.h>
#include <kprocess.h>
#include <kservicetypetrader.h>
#include <kstandarddirs.h>
#include <ktempfile.h>
#include <ktoggleaction.h>
#include <ktogglefullscreenaction.h>
#include <kio/job.h>
// local includes
#include "part.h"
#include "ui/pageview.h"
#include "ui/toc.h"
#include "ui/searchwidget.h"
#include "ui/thumbnaillist.h"
#include "ui/side_reviews.h"
#include "ui/minibar.h"
#include "ui/newstuff.h"
#include "ui/propertiesdialog.h"
#include "ui/presentationwidget.h"
#include "conf/preferencesdialog.h"
#include "settings.h"
#include "core/document.h"
#include "core/generator.h"
#include "core/page.h"
// definition of searchID for this class
#define PART_SEARCH_ID 1
typedef KParts::GenericFactory<oKular::Part> oKularPartFactory;
K_EXPORT_COMPONENT_FACTORY(liboKularpart, oKularPartFactory)
using namespace oKular;
Part::Part(QWidget *parentWidget,
QObject *parent,
const QStringList & /*args*/ )
: DCOPObject("oKular"), KParts::ReadOnlyPart(parent), m_viewportDirty( 0 ),
m_showMenuBarAction(0), m_showFullScreenAction(0), m_actionsSearched(false),
m_searchStarted(false)
{
// connect the started signal to tell the job the mimetypes we like
connect(this, SIGNAL(started(KIO::Job *)), this, SLOT(setMimeTypes(KIO::Job *)));
// load catalog for translation
KGlobal::locale()->insertCatalog("oKular");
// create browser extension (for printing when embedded into browser)
m_bExtension = new BrowserExtension(this);
// we need an instance
setInstance(oKularPartFactory::instance());
// build the document
m_document = new KPDFDocument(&m_loadedGenerators);
connect( m_document, SIGNAL( linkFind() ), this, SLOT( slotFind() ) );
connect( m_document, SIGNAL( linkGoToPage() ), this, SLOT( slotGoToPage() ) );
connect( m_document, SIGNAL( linkPresentation() ), this, SLOT( slotShowPresentation() ) );
connect( m_document, SIGNAL( linkEndPresentation() ), this, SLOT( slotHidePresentation() ) );
connect( m_document, SIGNAL( openURL(const KUrl &) ), this, SLOT( openURLFromDocument(const KUrl &) ) );
connect( m_document, SIGNAL( close() ), this, SLOT( close() ) );
if ( parent && parent->metaObject()->indexOfSlot( SLOT( slotQuit() ) ) != -1 )
connect( m_document, SIGNAL( quit() ), parent, SLOT( slotQuit() ) );
else
connect( m_document, SIGNAL( quit() ), this, SLOT( cannotQuit() ) );
// widgets: ^searchbar (toolbar containing label and SearchWidget)
// m_searchToolBar = new KToolBar( parentWidget, "searchBar" );
// m_searchToolBar->boxLayout()->setSpacing( KDialog::spacingHint() );
// QLabel * sLabel = new QLabel( i18n( "&Search:" ), m_searchToolBar, "kde toolbar widget" );
// m_searchWidget = new SearchWidget( m_searchToolBar, m_document );
// sLabel->setBuddy( m_searchWidget );
// m_searchToolBar->setStretchableWidget( m_searchWidget );
// widgets: [] splitter []
m_splitter = new QSplitter( parentWidget );
m_splitter->setOpaqueResize( true );
m_splitter->setChildrenCollapsible( false );
setWidget( m_splitter );
// widgets: [left panel] | []
m_leftPanel = new QWidget( m_splitter );
m_leftPanel->setMinimumWidth( 90 );
m_leftPanel->setMaximumWidth( 300 );
QVBoxLayout * leftPanelLayout = new QVBoxLayout( m_leftPanel );
leftPanelLayout->setMargin( 0 );
// widgets: [left toolbox/..] | []
m_toolBox = new QToolBox( m_leftPanel );
leftPanelLayout->addWidget( m_toolBox );
int tbIndex;
// [left toolbox: Table of Contents] | []
//QFrame * tocFrame = new QFrame( m_toolBox );
//QVBoxLayout * tocFrameLayout = new QVBoxLayout( tocFrame );
m_toc = new TOC( m_toolBox/*tocFrame*/, m_document );
connect( m_toc, SIGNAL( hasTOC( bool ) ), this, SLOT( enableTOC( bool ) ) );
//KListViewSearchLine * tocSearchLine = new KListViewSearchLine( tocFrame, toc );
//tocFrameLayout->addWidget( tocSearchLine );
//tocFrameLayout->addWidget( toc );
tbIndex = m_toolBox->addItem( m_toc/*tocFrame*/, SmallIconSet("text_left"), i18n("Contents") );
m_toolBox->setItemToolTip( tbIndex, i18n("Contents") );
enableTOC( false );
// [left toolbox: Thumbnails and Bookmarks] | []
KVBox * thumbsBox = new ThumbnailsBox( m_toolBox );
thumbsBox->setSpacing( 4 );
m_searchWidget = new SearchWidget( thumbsBox, m_document );
m_thumbnailList = new ThumbnailList( thumbsBox, m_document );
// ThumbnailController * m_tc = new ThumbnailController( thumbsBox, m_thumbnailList );
connect( m_thumbnailList, SIGNAL( urlDropped( const KUrl& ) ), SLOT( openURLFromDocument( const KUrl & )) );
connect( m_thumbnailList, SIGNAL( rightClick(const KPDFPage *, const QPoint &) ), this, SLOT( slotShowMenu(const KPDFPage *, const QPoint &) ) );
tbIndex = m_toolBox->addItem( thumbsBox, SmallIconSet("thumbnail"), i18n("Thumbnails") );
m_toolBox->setItemToolTip( tbIndex, i18n("Thumbnails") );
m_toolBox->setCurrentIndex( m_toolBox->indexOf( thumbsBox ) );
// [left toolbox: Reviews] | []
Reviews * reviewsWidget = new Reviews( m_toolBox, m_document );
m_toolBox->addItem( reviewsWidget, SmallIconSet("pencil"), i18n("Reviews") );
// widgets: [../miniBarContainer] | []
QWidget * miniBarContainer = new QWidget( m_leftPanel );
leftPanelLayout->addWidget( miniBarContainer );
QVBoxLayout * miniBarLayout = new QVBoxLayout( miniBarContainer );
miniBarLayout->setMargin( 0 );
// widgets: [../[spacer/..]] | []
QWidget * miniSpacer = new QWidget( miniBarContainer );
miniSpacer->setFixedHeight( 6 );
miniBarLayout->addWidget( miniSpacer );
// widgets: [../[../MiniBar]] | []
m_miniBar = new MiniBar( miniBarContainer, m_document );
miniBarLayout->addWidget( m_miniBar );
// widgets: [] | [right 'pageView']
// QWidget * rightContainer = new QWidget( m_splitter );
// QVBoxLayout * rightLayout = new QVBoxLayout( rightContainer );
// KToolBar * rtb = new KToolBar( rightContainer, "mainToolBarSS" );
// rightLayout->addWidget( rtb );
m_pageView = new PageView( m_splitter, m_document );
m_pageView->setFocus(); //usability setting
connect( m_pageView, SIGNAL( urlDropped( const KUrl& ) ), SLOT( openURLFromDocument( const KUrl & )));
connect( m_pageView, SIGNAL( rightClick(const KPDFPage *, const QPoint &) ), this, SLOT( slotShowMenu(const KPDFPage *, const QPoint &) ) );
connect( m_document, SIGNAL(error(QString&,int )),m_pageView,SLOT(errorMessage(QString&,int )));
connect( m_document, SIGNAL(warning(QString&,int )),m_pageView,SLOT(warningMessage(QString&,int )));
connect( m_document, SIGNAL(notice(QString&,int )),m_pageView,SLOT(noticeMessage(QString&,int )));
// rightLayout->addWidget( m_pageView );
// add document observers
m_document->addObserver( this );
m_document->addObserver( m_thumbnailList );
m_document->addObserver( m_pageView );
m_document->addObserver( m_toc );
m_document->addObserver( m_miniBar );
m_document->addObserver( reviewsWidget );
// ACTIONS
KActionCollection * ac = actionCollection();
// Page Traversal actions
m_gotoPage = KStdAction::gotoPage( this, SLOT( slotGoToPage() ), ac, "goto_page" );
m_gotoPage->setShortcut( QKeySequence(Qt::CTRL + Qt::Key_G) );
// dirty way to activate gotopage when pressing miniBar's button
connect( m_miniBar, SIGNAL( gotoPage() ), m_gotoPage, SLOT( trigger() ) );
m_prevPage = KStdAction::prior(this, SLOT(slotPreviousPage()), ac, "previous_page");
m_prevPage->setWhatsThis( i18n( "Moves to the previous page of the document" ) );
m_prevPage->setShortcut( Qt::Key_Backspace );
// dirty way to activate prev page when pressing miniBar's button
connect( m_miniBar, SIGNAL( prevPage() ), m_prevPage, SLOT( trigger() ) );
m_nextPage = KStdAction::next(this, SLOT(slotNextPage()), ac, "next_page" );
m_nextPage->setWhatsThis( i18n( "Moves to the next page of the document" ) );
m_nextPage->setShortcut( Qt::Key_Space );
// dirty way to activate next page when pressing miniBar's button
connect( m_miniBar, SIGNAL( nextPage() ), m_nextPage, SLOT( trigger() ) );
m_firstPage = KStdAction::firstPage( this, SLOT( slotGotoFirst() ), ac, "first_page" );
m_firstPage->setWhatsThis( i18n( "Moves to the first page of the document" ) );
m_lastPage = KStdAction::lastPage( this, SLOT( slotGotoLast() ), ac, "last_page" );
m_lastPage->setWhatsThis( i18n( "Moves to the last page of the document" ) );
m_historyBack = KStdAction::back( this, SLOT( slotHistoryBack() ), ac, "history_back" );
m_historyBack->setWhatsThis( i18n( "Go to the place you were before" ) );
m_historyNext = KStdAction::forward( this, SLOT( slotHistoryNext() ), ac, "history_forward" );
m_historyNext->setWhatsThis( i18n( "Go to the place you were after" ) );
// Find and other actions
m_find = KStdAction::find( this, SLOT( slotFind() ), ac, "find" );
m_find->setEnabled( false );
m_findNext = KStdAction::findNext( this, SLOT( slotFindNext() ), ac, "find_next" );
m_findNext->setEnabled( false );
m_saveAs = KStdAction::saveAs( this, SLOT( slotSaveFileAs() ), ac, "save" );
m_saveAs->setEnabled( false );
KAction * prefs = KStdAction::preferences( this, SLOT( slotPreferences() ), ac, "preferences" );
prefs->setText( i18n( "Configure oKular..." ) ); // TODO: use "Configure PDF Viewer..." when used as part (like in konq
QString constraint("([X-KDE-Priority] > 0) and (exist Library) and ([X-KDE-oKularHasInternalSettings])") ;
KService::List gens = KServiceTypeTrader::self()->query("oKular/Generator",constraint);
if (gens.count() > 0)
{
KAction * genPrefs = KStdAction::preferences( this, SLOT( slotGeneratorPreferences() ), ac, "generator_prefs" );
genPrefs->setText( i18n( "Configure backends..." ) );
}
m_printPreview = KStdAction::printPreview( this, SLOT( slotPrintPreview() ), ac );
m_printPreview->setEnabled( false );
m_showLeftPanel = new KToggleAction( KIcon( "show_side_panel" ), i18n( "Show &Navigation Panel"), ac, "show_leftpanel" );
connect( m_showLeftPanel, SIGNAL( toggled( bool ) ), this, SLOT( slotShowLeftPanel() ) );
m_showLeftPanel->setShortcut( QKeySequence(Qt::CTRL + Qt::Key_L) );
m_showLeftPanel->setCheckedState( i18n( "Hide &Navigation Panel" ) );
m_showLeftPanel->setChecked( KpdfSettings::showLeftPanel() );
slotShowLeftPanel();
KAction * importPS= new KAction(KIcon("psimport"), i18n("&Import Postscript as PDF..."), ac, "import_ps");
connect(importPS, SIGNAL(triggered()), this, SLOT(slotImportPSFile()));
KAction * ghns = new KAction(KIcon("knewstuff"), i18n("&Get Books From Internet..."), ac, "get_new_stuff");
connect(ghns, SIGNAL(triggered()), this, SLOT(slotGetNewStuff()));
ghns->setShortcut( Qt::Key_G ); // TEMP, REMOVE ME!
m_showProperties = new KAction(KIcon("info"), i18n("&Properties"), ac, "properties");
connect(m_showProperties, SIGNAL(triggered()), this, SLOT(slotShowProperties()));
m_showProperties->setEnabled( false );
m_showPresentation = new KAction( KIcon( "kpresenter_kpr" ), i18n("P&resentation"), ac, "presentation");
connect(m_showPresentation, SIGNAL(triggered()), this, SLOT(slotShowPresentation()));
m_showPresentation->setShortcut( QKeySequence( Qt::CTRL + Qt::SHIFT + Qt::Key_P ) );
m_showPresentation->setEnabled( false );
// attach the actions of the children widgets too
m_pageView->setupActions( ac );
// apply configuration (both internal settings and GUI configured items)
QList<int> splitterSizes = KpdfSettings::splitterSizes();
if ( !splitterSizes.count() )
{
// the first time use 1/10 for the panel and 9/10 for the pageView
splitterSizes.push_back( 50 );
splitterSizes.push_back( 500 );
}
m_splitter->setSizes( splitterSizes );
// get notified about splitter size changes (HACK that will be removed
// by connecting to Qt4::QSplitter's sliderMoved())
m_pageView->installEventFilter( this );
// document watcher and reloader
m_watcher = new KDirWatch( this );
connect( m_watcher, SIGNAL( dirty( const QString& ) ), this, SLOT( slotFileDirty( const QString& ) ) );
m_dirtyHandler = new QTimer( this );
m_dirtyHandler->setSingleShot( true );
connect( m_dirtyHandler, SIGNAL( timeout() ),this, SLOT( slotDoFileDirty() ) );
slotNewConfig();
// [SPEECH] check for KTTSD presence and usability
KService::List offers = KServiceTypeTrader::self()->query("DCOP/Text-to-Speech", "Name == 'KTTSD'");
KpdfSettings::setUseKTTSD( (offers.count() > 0) );
KpdfSettings::writeConfig();
// set our XML-UI resource file
setXMLFile("part.rc");
//
updateViewActions();
}
Part::~Part()
{
delete m_toc;
delete m_pageView;
delete m_thumbnailList;
delete m_miniBar;
delete m_document;
}
void Part::openURLFromDocument(const KUrl &url)
{
m_bExtension->openURLNotify();
m_bExtension->setLocationBarURL(url.prettyUrl());
openURL(url);
}
void Part::supportedMimetypes()
{
m_supportedMimeTypes.clear();
QString constraint("([X-KDE-Priority] > 0) and (exist Library) ") ;
KService::List offers = KServiceTypeTrader::self()->query("oKular/Generator",constraint);
KService::List::ConstIterator iterator = offers.begin();
KService::List::ConstIterator end = offers.end();
QStringList::Iterator mimeType;
for (; iterator != end; ++iterator)
{
KService::Ptr service = *iterator;
QStringList mimeTypes = service->serviceTypes();
for (mimeType=mimeTypes.begin();mimeType!=mimeTypes.end();++mimeType)
if (! (*mimeType).contains("oKular"))
m_supportedMimeTypes << *mimeType;
}
}
void Part::setMimeTypes(KIO::Job *job)
{
if (job)
{
if (m_supportedMimeTypes.count() <= 0)
supportedMimetypes();
job->addMetaData("accept", m_supportedMimeTypes.join(", ") + ", */*;q=0.5");
}
}
void Part::fillGenerators()
{
QString constraint("([X-KDE-Priority] > 0) and (exist Library) and ([X-KDE-oKularHasInternalSettings])") ;
KService::List offers = KServiceTypeTrader::self()->query("oKular/Generator", constraint);
QString propName;
int count=offers.count();
if (count > 0)
{
for (int i=0;i<count;i++)
{
propName=offers[i]->property("Name").toString();
// dont load already loaded generators
if (! m_loadedGenerators.take( propName ) )
{
KLibLoader *loader = KLibLoader::self();
if (!loader)
{
kWarning() << "Could not start library loader: '" << loader->lastErrorMessage() << "'." << endl;
return;
}
KLibrary *lib = loader->globalLibrary( QFile::encodeName( offers[i]->library() ) );
if (!lib)
{
kWarning() << "Could not load '" << lib->fileName() << "' library." << endl;
}
Generator* (*create_plugin)(KPDFDocument* doc) = ( Generator* (*)(KPDFDocument* doc) ) lib->symbol( "create_plugin" );
// the generator should do anything with the document if we are only configuring
m_loadedGenerators.insert(propName,create_plugin(m_document));
m_generatorsWithSettings << propName;
}
}
}
}
void Part::slotGeneratorPreferences( )
{
fillGenerators();
//Generator* gen= m_loadedGenerators[m_generatorsWithSettings[number]];
// an instance the dialog could be already created and could be cached,
// in which case you want to display the cached dialog
if ( KConfigDialog::showDialog( "generator_prefs" ) )
return;
// we didn't find an instance of this dialog, so lets create it
KConfigDialog * dialog = new KConfigDialog( m_pageView, "generator_prefs", KpdfSettings::self() );
QHashIterator<QString, Generator*> it(m_loadedGenerators);
while(it.hasNext())
{
it.next();
it.value()->addPages(dialog);
}
// (for now dont FIXME) keep us informed when the user changes settings
// connect( dialog, SIGNAL( settingsChanged() ), this, SLOT( slotNewConfig() ) );
dialog->show();
}
void Part::notifyViewportChanged( bool /*smoothMove*/ )
{
// update actions if the page is changed
static int lastPage = -1;
int viewportPage = m_document->viewport().pageNumber;
if ( viewportPage != lastPage )
{
updateViewActions();
lastPage = viewportPage;
}
}
void Part::goToPage(uint i)
{
if ( i <= m_document->pages() )
m_document->setViewportPage( i - 1 );
}
void Part::openDocument(KUrl doc)
{
openURL(doc);
}
uint Part::pages()
{
return m_document->pages();
}
uint Part::currentPage()
{
return m_document->pages() ? m_document->currentPage() + 1 : 0;
}
KUrl Part::currentDocument()
{
return m_document->currentDocument();
}
//this don't go anywhere but is required by genericfactory.h
KAboutData* Part::createAboutData()
{
// the non-i18n name here must be the same as the directory in
// which the part's rc file is installed ('partrcdir' in the
// Makefile)
KAboutData* aboutData = new KAboutData("oKularpart", I18N_NOOP("oKular::Part"), "0.1");
aboutData->addAuthor("Wilco Greven", 0, "greven@kde.org");
return aboutData;
}
bool Part::slotImportPSFile()
{
QString app = KStandardDirs::findExe( "ps2pdf" );
if ( app.isEmpty() )
{
// TODO point the user to their distro packages?
KMessageBox::error( widget(), i18n( "The program \"ps2pdf\" was not found, so oKular can not import PS files using it." ), i18n("ps2pdf not found") );
return false;
}
KUrl url = KFileDialog::getOpenURL( QString::null, "application/postscript" );
KTempFile tf( QString::null, ".pdf" );
if ( tf.status() == 0 && url.isLocalFile())
{
tf.close();
m_file = url.path();
m_temporaryLocalFile = tf.name();
QString app = KStandardDirs::findExe( "ps2pdf" );
KProcess *p = new KProcess;
*p << app;
*p << m_file << m_temporaryLocalFile;
m_pageView->displayMessage(i18n("Importing PS file as PDF (this may take a while)..."));
connect(p, SIGNAL(processExited(KProcess *)), this, SLOT(psTransformEnded()));
connect(p, SIGNAL(processExited(KProcess *)), this, SLOT(psTransformEnded()));
p -> start();
return true;
}
m_temporaryLocalFile = QString::null;
return false;
}
bool Part::openFile()
{
KMimeType::Ptr mime;
if ( m_bExtension->urlArgs().serviceType.isEmpty() )
{
mime = KMimeType::findByPath( m_file );
}
else
{
mime = KMimeType::mimeType( m_bExtension->urlArgs().serviceType );
}
bool ok = m_document->openDocument( m_file, url(), mime );
bool canSearch = m_document->supportsSearching();
// update one-time actions
m_find->setEnabled( ok && canSearch );
m_findNext->setEnabled( ok && canSearch );
m_saveAs->setEnabled( ok );
m_printPreview->setEnabled( ok );
m_showProperties->setEnabled( ok );
m_showPresentation->setEnabled( ok );
// update viewing actions
updateViewActions();
if ( !ok )
{
// if can't open document, update windows so they display blank contents
m_pageView->updateContents();
m_thumbnailList->update();
return false;
}
// set the file to the fileWatcher
if ( !m_watcher->contains(m_file) )
m_watcher->addFile(m_file);
// if the 'StartFullScreen' flag is set, start presentation
if ( m_document->getMetaData( "StartFullScreen" ) == "yes" )
{
KMessageBox::information( m_presentationWidget, i18n("The document is going to be launched on presentation mode because the file requested it."), QString::null, "autoPresentationWarning" );
slotShowPresentation();
}
/* if (m_document->getXMLFile() != QString::null)
setXMLFile(m_document->getXMLFile(),true);*/
m_document->setupGUI(actionCollection(),m_toolBox);
return true;
}
bool Part::openURL(const KUrl &url)
{
// note: this can be the right place to check the file for gz or bz2 extension
// if it matches then: download it (if not local) extract to a temp file using
// KTar and proceed with the URL of the temporary file
// this calls in sequence the 'closeURL' and 'openFile' methods
bool openOk = KParts::ReadOnlyPart::openURL(url);
if ( openOk )
m_viewportDirty = 0;
else
KMessageBox::error( widget(), i18n( "Could not open %1", url.prettyUrl() ) );
emit enablePrintAction(openOk);
return openOk;
}
bool Part::closeURL()
{
if (!m_temporaryLocalFile.isNull())
{
QFile::remove( m_temporaryLocalFile );
m_temporaryLocalFile = QString::null;
}
slotHidePresentation();
m_find->setEnabled( false );
m_findNext->setEnabled( false );
m_saveAs->setEnabled( false );
m_printPreview->setEnabled( false );
m_showProperties->setEnabled( false );
m_showPresentation->setEnabled( false );
emit setWindowCaption("");
emit enablePrintAction(false);
m_searchStarted = false;
if (!m_file.isEmpty()) m_watcher->removeFile(m_file);
m_document->closeDocument();
updateViewActions();
m_searchWidget->clearText();
return KParts::ReadOnlyPart::closeURL();
}
void Part::close()
{
if (parent() && (parent()->objectName() == QLatin1String("oKular::Shell")))
{
closeURL();
}
else KMessageBox::information(widget(), i18n("This link points to a close document action that does not work when using the embedded viewer."), QString::null, "warnNoCloseIfNotInKPDF");
}
void Part::cannotQuit()
{
KMessageBox::information(widget(), i18n("This link points to a quit application action that does not work when using the embedded viewer."), QString::null, "warnNoQuitIfNotInKPDF");
}
bool Part::eventFilter( QObject * watched, QEvent * e )
{
// if pageView has been resized, save splitter sizes
if ( watched == m_pageView && e->type() == QEvent::Resize )
saveSplitterSize();
// only intercept events, don't block them
return false;
}
void Part::slotShowLeftPanel()
{
bool showLeft = m_showLeftPanel->isChecked();
KpdfSettings::setShowLeftPanel( showLeft );
KpdfSettings::writeConfig();
// show/hide left panel
m_leftPanel->setVisible( showLeft );
// this needs to be hidden explicitly to disable thumbnails gen
m_thumbnailList->setVisible( showLeft );
}
void Part::saveSplitterSize()
{
KpdfSettings::setSplitterSizes( m_splitter->sizes() );
KpdfSettings::writeConfig();
}
void Part::slotFileDirty( const QString& fileName )
{
// The beauty of this is that each start cancels the previous one.
// This means that timeout() is only fired when there have
// no changes to the file for the last 750 milisecs.
// This ensures that we don't update on every other byte that gets
// written to the file.
if ( fileName == m_file )
{
m_dirtyHandler->start( 750 );
}
}
void Part::slotDoFileDirty()
{
// do the following the first time the file is reloaded
if ( m_viewportDirty.pageNumber == -1 )
{
// store the current viewport
m_viewportDirty = DocumentViewport( m_document->viewport() );
// inform the user about the operation in progress
m_pageView->displayMessage( i18n("Reloading the document...") );
}
// close and (try to) reopen the document
if ( KParts::ReadOnlyPart::openURL(m_file) )
{
// on successfull opening, restore the previous viewport
if ( m_viewportDirty.pageNumber >= (int) m_document->pages() )
m_viewportDirty.pageNumber = (int) m_document->pages() - 1;
m_document->setViewport( m_viewportDirty );
m_viewportDirty.pageNumber = -1;
emit enablePrintAction(true);
}
else
{
// start watching the file again (since we dropped it on close)
m_watcher->addFile(m_file);
m_dirtyHandler->start( 750 );
}
}
void Part::updateViewActions()
{
bool opened = m_document->pages() > 0;
if ( opened )
{
bool atBegin = m_document->currentPage() < 1;
bool atEnd = m_document->currentPage() >= (m_document->pages() - 1);
m_gotoPage->setEnabled( m_document->pages() > 1 );
m_firstPage->setEnabled( !atBegin );
m_prevPage->setEnabled( !atBegin );
m_lastPage->setEnabled( !atEnd );
m_nextPage->setEnabled( !atEnd );
m_historyBack->setEnabled( !m_document->historyAtBegin() );
m_historyNext->setEnabled( !m_document->historyAtEnd() );
}
else
{
m_gotoPage->setEnabled( false );
m_firstPage->setEnabled( false );
m_lastPage->setEnabled( false );
m_prevPage->setEnabled( false );
m_nextPage->setEnabled( false );
m_historyBack->setEnabled( false );
m_historyNext->setEnabled( false );
}
}
void Part::enableTOC(bool enable)
{
m_toolBox->setItemEnabled(0, enable);
}
//BEGIN go to page dialog
class KPDFGotoPageDialog : public KDialog
{
public:
KPDFGotoPageDialog(QWidget *p, int current, int max) : KDialog(p, i18n("Go to Page"), Ok | Cancel) {
QWidget *w = new QWidget(this);
setMainWidget(w);
QVBoxLayout *topLayout = new QVBoxLayout(w);
topLayout->setMargin(0);
topLayout->setSpacing(spacingHint());
e1 = new KIntNumInput(current, w);
e1->setRange(1, max);
e1->setEditFocus(true);
QLabel *label = new QLabel(i18n("&Page:"), w);
label->setBuddy(e1);
topLayout->addWidget(label);
topLayout->addWidget(e1);
topLayout->addSpacing(spacingHint()); // A little bit extra space
topLayout->addStretch(10);
e1->setFocus();
}
int getPage() const {
return e1->value();
}
protected:
KIntNumInput *e1;
};
//END go to page dialog
void Part::slotGoToPage()
{
KPDFGotoPageDialog pageDialog( m_pageView, m_document->currentPage() + 1, m_document->pages() );
if ( pageDialog.exec() == QDialog::Accepted )
m_document->setViewportPage( pageDialog.getPage() - 1 );
}
void Part::slotPreviousPage()
{
if ( m_document->isOpened() && !(m_document->currentPage() < 1) )
m_document->setViewportPage( m_document->currentPage() - 1 );
}
void Part::slotNextPage()
{
if ( m_document->isOpened() && m_document->currentPage() < (m_document->pages() - 1) )
m_document->setViewportPage( m_document->currentPage() + 1 );
}
void Part::slotGotoFirst()
{
if ( m_document->isOpened() )
m_document->setViewportPage( 0 );
}
void Part::slotGotoLast()
{
if ( m_document->isOpened() )
m_document->setViewportPage( m_document->pages() - 1 );
}
void Part::slotHistoryBack()
{
m_document->setPrevViewport();
}
void Part::slotHistoryNext()
{
m_document->setNextViewport();
}
void Part::slotFind()
{
KFindDialog dlg( widget() );
dlg.setHasCursor( false );
#if KDE_IS_VERSION(3,3,90)
dlg.setSupportsBackwardsFind( false );
dlg.setSupportsWholeWordsFind( false );
dlg.setSupportsRegularExpressionFind( false );
#endif
if ( dlg.exec() == QDialog::Accepted )
{
m_searchStarted = true;
m_document->resetSearch( PART_SEARCH_ID );
m_document->searchText( PART_SEARCH_ID, dlg.pattern(), false, dlg.options() & KFind::CaseSensitive,
KPDFDocument::NextMatch, true, qRgb( 255, 255, 64 ) );
}
}
void Part::slotFindNext()
{
if ( m_searchStarted )
m_document->continueSearch( PART_SEARCH_ID );
else
slotFind();
}
void Part::slotSaveFileAs()
{
KUrl saveURL = KFileDialog::getSaveURL( url().isLocalFile() ? url().url() : url().fileName(), QString::null, widget() );
if ( saveURL.isValid() && !saveURL.isEmpty() )
{
if ( KIO::NetAccess::exists( saveURL, false, widget() ) )
{
if (KMessageBox::warningContinueCancel( widget(), i18n("A file named \"%1\" already exists. Are you sure you want to overwrite it?", saveURL.fileName()), QString::null, i18n("Overwrite")) != KMessageBox::Continue)
return;
}
if ( !KIO::NetAccess::file_copy( url(), saveURL, -1, true ) )
KMessageBox::information( widget(), i18n("File could not be saved in '%1'. Try to save it to another location.", saveURL.prettyUrl() ) );
}
}
void Part::slotGetNewStuff()
{
// show the modal dialog over pageview and execute it
NewStuffDialog * dialog = new NewStuffDialog( m_pageView );
dialog->exec();
delete dialog;
}
void Part::slotPreferences()
{
// an instance the dialog could be already created and could be cached,
// in which case you want to display the cached dialog
if ( PreferencesDialog::showDialog( "preferences" ) )
return;
// we didn't find an instance of this dialog, so lets create it
PreferencesDialog * dialog = new PreferencesDialog( m_pageView, KpdfSettings::self() );
// keep us informed when the user changes settings
connect( dialog, SIGNAL( settingsChanged( const QString & ) ), this, SLOT( slotNewConfig() ) );
dialog->show();
}
void Part::slotNewConfig()
{
// Apply settings here. A good policy is to check wether the setting has
// changed before applying changes.
// Watch File
bool watchFile = KpdfSettings::watchFile();
if ( watchFile && m_watcher->isStopped() )
m_watcher->startScan();
if ( !watchFile && !m_watcher->isStopped() )
{
m_dirtyHandler->stop();
m_watcher->stopScan();
}
bool showSearch = KpdfSettings::showSearchBar();
if ( !m_searchWidget->isHidden() != showSearch )
m_searchWidget->setVisible( showSearch );
// Main View (pageView)
Q3ScrollView::ScrollBarMode scrollBarMode = KpdfSettings::showScrollBars() ?
Q3ScrollView::AlwaysOn : Q3ScrollView::AlwaysOff;
if ( m_pageView->hScrollBarMode() != scrollBarMode )
{
m_pageView->setHScrollBarMode( scrollBarMode );
m_pageView->setVScrollBarMode( scrollBarMode );
}
// update document settings
m_document->reparseConfig();
// update Main View and ThumbnailList contents
// TODO do this only when changing KpdfSettings::renderMode()
m_pageView->updateContents();
if ( KpdfSettings::showLeftPanel() && !m_thumbnailList->isHidden() )
m_thumbnailList->updateWidgets();
}
void Part::slotPrintPreview()
{
if (m_document->pages() == 0) return;
double width, height;
int landscape, portrait;
KPrinter printer;
const KPDFPage *page;
printer.setMinMax(1, m_document->pages());
printer.setPreviewOnly( true );
printer.setMargins(0, 0, 0, 0);
// if some pages are landscape and others are not the most common win as kprinter does
// not accept a per page setting
landscape = 0;
portrait = 0;
for (uint i = 0; i < m_document->pages(); i++)
{
page = m_document->page(i);
width = page->width();
height = page->height();
if (page->rotation() == 90 || page->rotation() == 270) qSwap(width, height);
if (width > height) landscape++;
else portrait++;
}
if (landscape > portrait) printer.setOption("orientation-requested", "4");
doPrint(printer);
}
void Part::slotShowMenu(const KPDFPage *page, const QPoint &point)
{
bool reallyShow = false;
if (!m_actionsSearched)
{
// the quest for options_show_menubar
KActionCollection *ac;
KAction *act;
if (factory())
{
QList<KXMLGUIClient*> clients(factory()->clients());
for(int i = 0 ; (!m_showMenuBarAction || !m_showFullScreenAction) && i < clients.size(); ++i)
{
ac = clients.at(i)->actionCollection();
// show_menubar
act = ac->action("options_show_menubar");
if (act && qobject_cast<KToggleAction*>(act))
m_showMenuBarAction = qobject_cast<KToggleAction*>(act);
// fullscreen
act = ac->action("fullscreen");
if (act && qobject_cast<KToggleFullScreenAction*>(act))
m_showFullScreenAction = qobject_cast<KToggleFullScreenAction*>(act);
}
}
m_actionsSearched = true;
}
KMenu *popup = new KMenu( widget() );
QAction *toggleBookmark, *fitPageWidth;
toggleBookmark = 0;
fitPageWidth = 0;
if (page)
{
popup->addTitle( i18n( "Page %1", page->number() + 1 ) );
if ( page->hasBookmark() )
toggleBookmark = popup->addAction( KIcon("bookmark"), i18n("Remove Bookmark") );
else
toggleBookmark = popup->addAction( KIcon("bookmark_add"), i18n("Add Bookmark") );
if ( m_pageView->canFitPageWidth() )
fitPageWidth = popup->addAction( KIcon("viewmagfit"), i18n("Fit Width") );
//popup->insertItem( SmallIcon("pencil"), i18n("Edit"), 3 );
//popup->setItemEnabled( 3, false );
reallyShow = true;
}
/*
//Albert says: I have not ported this as i don't see it does anything
if ( d->mouseOnRect ) // and rect->objectType() == ObjectRect::Image ...
{
m_popup->insertItem( SmallIcon("filesave"), i18n("Save Image..."), 4 );
m_popup->setItemEnabled( 4, false );
}*/
if ((m_showMenuBarAction && !m_showMenuBarAction->isChecked()) || (m_showFullScreenAction && m_showFullScreenAction->isChecked()))
{
popup->addTitle( i18n( "Tools" ) );
if (m_showMenuBarAction && !m_showMenuBarAction->isChecked()) popup->addAction(m_showMenuBarAction);
if (m_showFullScreenAction && m_showFullScreenAction->isChecked()) popup->addAction(m_showFullScreenAction);
reallyShow = true;
}
if (reallyShow)
{
QAction *res = popup->exec(point);
if (res == toggleBookmark) m_document->toggleBookmark( page->number() );
else if (res == fitPageWidth) m_pageView->fitPageWidth( page->number() );
}
delete popup;
}
void Part::slotShowProperties()
{
PropertiesDialog *d = new PropertiesDialog(widget(), m_document);
d->exec();
delete d;
}
void Part::slotShowPresentation()
{
if ( !m_presentationWidget )
m_presentationWidget = new PresentationWidget( widget(), m_document );
}
void Part::slotHidePresentation()
{
if ( m_presentationWidget )
delete (PresentationWidget*) m_presentationWidget;
}
void Part::slotPrint()
{
if (m_document->pages() == 0) return;
double width, height;
int landscape, portrait;
KPrinter printer;
const KPDFPage *page;
printer.setPageSelection(KPrinter::ApplicationSide);
printer.setMinMax(1, m_document->pages());
printer.setCurrentPage(m_document->currentPage()+1);
printer.setMargins(0, 0, 0, 0);
// if some pages are landscape and others are not the most common win as kprinter does
// not accept a per page setting
landscape = 0;
portrait = 0;
for (uint i = 0; i < m_document->pages(); i++)
{
page = m_document->page(i);
width = page->width();
height = page->height();
if (page->rotation() == 90 || page->rotation() == 270) qSwap(width, height);
if (width > height) landscape++;
else portrait++;
}
if (landscape > portrait) printer.setOrientation(KPrinter::Landscape);
if ( m_document->canConfigurePrinter() )
doPrint( printer );
else if (printer.setup(widget())) doPrint( printer );
}
void Part::doPrint(KPrinter &printer)
{
if (!m_document->isAllowed(KPDFDocument::AllowPrint))
{
KMessageBox::error(widget(), i18n("Printing this document is not allowed."));
return;
}
if (!m_document->print(printer))
{
KMessageBox::error(widget(), i18n("Could not print the document. Please report to bugs.kde.org"));
}
}
void Part::restoreDocument(const KUrl &url, int page)
{
if (openURL(url)) goToPage(page);
}
void Part::saveDocumentRestoreInfo(KConfig* config)
{
config->writePathEntry( "URL", url().url() );
if (m_document->pages() > 0) config->writeEntry( "Page", m_document->currentPage() + 1 );
}
void Part::psTransformEnded()
{
m_file = m_temporaryLocalFile;
openFile();
}
/*
* BrowserExtension class
*/
BrowserExtension::BrowserExtension(Part* parent)
: KParts::BrowserExtension( parent )
{
emit enableAction("print", true);
setURLDropHandlingEnabled(true);
}
void BrowserExtension::print()
{
static_cast<Part*>(parent())->slotPrint();
}
#include "part.moc"
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