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tdegraphics/kghostview/kgv_view.cpp

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/**
* Copyright (C) 2000-2002 the KGhostView authors. See file AUTHORS.
*
* 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.
*/
#include <tqfile.h>
#include <tqfileinfo.h>
#include <tqframe.h>
#include <tqtable.h>
#include <tqlayout.h>
#include <tqregexp.h>
#include <kaction.h>
#include <kapplication.h>
#include <kconfig.h>
#include <kdebug.h>
#include <kdirwatch.h>
#include <kglobalsettings.h>
#include <kiconloader.h>
#include <kinstance.h>
#include <klocale.h>
#include <kpopupmenu.h>
#include <kstdaction.h>
#include <kstdaccel.h>
#include <ktempfile.h>
#include <kio/scheduler.h>
#include <kaboutdata.h>
#include "kgv_view.h"
#include "kgv_miniwidget.h"
#include "kgvconfigdialog.h"
#include "kgvdocument.h"
#include "kgvpagedecorator.h"
#include "kgvpageview.h"
#include "kgvmainwidget.h"
#include "kpswidget.h"
#include "kgvfactory.h"
#include "logwindow.h"
#include "marklist.h"
#include "scrollbox.h"
#include "version.h"
#include "configuration.h"
#include <cmath>
namespace KGV {
/*
* This is because Qt's iterators
* are not standard iterators bc of missing typedefs,
* so they are only *almost* STL compatible
*/
template <typename T>
unsigned distance( T a, T b ) {
unsigned res = 0;
while ( a != b ) {
++res;
++a;
}
return res;
}
}
KGVPart::KGVPart( TQWidget* parentWidget, const char*,
TQObject* parent, const char* name,
const TQStringList &args ) :
KParts::ReadOnlyPart( parent, name ),
_fitTimer( new TQTimer( this ) ),
_job( 0 ),
_mimetypeScanner( 0 ),
_dirtyHandler( new TQTimer( this ) ),
_isGuiInitialized( false ),
_isFileDirty( false ),
_stickyOptions( false ),
_embeddedInKGhostView( !args.contains( "KParts::ReadOnlyPart" ) ),
_customZoomIndex( -1 )
{
setInstance( KGVFactory::instance() );
// Don't show the progress info dialog if we're embedded in Konqueror.
setProgressInfoEnabled( !args.contains( "Browser/View") );
_document = new KGVDocument( this );
connect( _document, TQT_SIGNAL( fileChangeFailed() ),
this, TQT_SLOT( slotCancelWatch() ) );
connect( _document, TQT_SIGNAL( completed() ),
this, TQT_SLOT( slotOpenFileCompleted() ) );
connect( _document, TQT_SIGNAL( canceled( const TQString& ) ),
this, TQT_SIGNAL( canceled( const TQString& ) ) );
_fileWatcher = new KDirWatch( this );
connect( _fileWatcher, TQT_SIGNAL( dirty( const TQString& ) ),
this, TQT_SLOT( slotFileDirty( const TQString& ) ) );
connect( _dirtyHandler, TQT_SIGNAL( timeout() ),
this, TQT_SLOT( slotDoFileDirty() ) );
// Setup main widget
_mainWidget = new KGVMainWidget( parentWidget );
_mainWidget->setFocusPolicy( TQWidget::StrongFocus );
_mainWidget->installEventFilter( this );
_mainWidget->setAcceptDrops( true );
connect( _mainWidget, TQT_SIGNAL( spacePressed() ),
this, TQT_SLOT( slotReadDown() ) );
connect( _mainWidget, TQT_SIGNAL( urlDropped( const KURL& ) ),
this, TQT_SLOT( openURL( const KURL& ) ) );
TQHBoxLayout* hlay = new TQHBoxLayout( _mainWidget, 0, 0 );
TQVBoxLayout* vlay = new TQVBoxLayout( hlay );
const int PAGELIST_WIDTH = 75;
_scrollBox = new ScrollBox( _mainWidget , "scrollbox" );
_scrollBox->setFixedWidth( PAGELIST_WIDTH );
_scrollBox->setMinimumHeight( PAGELIST_WIDTH );
vlay->addWidget( _scrollBox );
_divider = new TQFrame( _mainWidget, "divider" );
_divider->setFrameStyle( TQFrame::Panel | TQFrame::Raised );
_divider->setLineWidth( 1 );
_divider->setMinimumWidth( 3 );
hlay->addWidget( _divider );
_pageView = new KGVPageView( _mainWidget, "pageview" );
_pageView->viewport()->setBackgroundMode( TQWidget::PaletteMid );
hlay->addWidget( _pageView, 1 );
_mainWidget->setFocusProxy( _pageView );
setWidget( _mainWidget );
_pageDecorator = new KGVPageDecorator( _pageView->viewport() );
_pageDecorator->hide();
_psWidget = new KPSWidget( _pageDecorator );
_psWidget->readSettings();
_pageView->setPage( _pageDecorator );
connect( _psWidget, TQT_SIGNAL( output( char*, int ) ),
this, TQT_SLOT( slotGhostscriptOutput( char*, int ) ) );
connect( _psWidget, TQT_SIGNAL( ghostscriptError( const TQString& ) ),
this, TQT_SLOT( slotGhostscriptError( const TQString& ) ) );
_logWindow = new LogWindow( i18n( "Ghostscript Messages" ), _mainWidget, "logwindow" );
_showLogWindow = false;
connect( _logWindow, TQT_SIGNAL( configureGS() ), TQT_SLOT( slotConfigure() ) );
_docManager = new KGVMiniWidget( this );
_docManager->setPSWidget( _psWidget );
_docManager->setDocument( document() );
_markList = new MarkList( _mainWidget, "marklist", _docManager );
_markList->setFixedWidth( PAGELIST_WIDTH );
vlay->addWidget( _markList, 1 );
connect( _markList, TQT_SIGNAL( contextMenuRequested ( int, int, const TQPoint& ) ),
this, TQT_SLOT( showPopup( int, int, const TQPoint& ) ) );
connect( _markList, TQT_SIGNAL( selected( int ) ),
_docManager, TQT_SLOT( goToPage( int ) ) );
connect( _docManager, TQT_SIGNAL( newPageShown( int ) ),
_markList, TQT_SLOT( select( int ) ) );
connect( _docManager, TQT_SIGNAL( setStatusBarText( const TQString& ) ),
this, TQT_SIGNAL( setStatusBarText( const TQString& ) ) );
connect( _scrollBox, TQT_SIGNAL( valueChangedRelative( int, int ) ),
_pageView, TQT_SLOT( scrollBy( int, int ) ) );
connect( _pageView, TQT_SIGNAL( pageSizeChanged( const TQSize& ) ),
_scrollBox, TQT_SLOT( setPageSize( const TQSize& ) ) );
connect( _pageView, TQT_SIGNAL( viewSizeChanged( const TQSize& ) ),
_scrollBox, TQT_SLOT( setViewSize( const TQSize& ) ) );
connect( _pageView, TQT_SIGNAL( contentsMoving( int, int ) ),
_scrollBox, TQT_SLOT( setViewPos( int, int ) ) );
//-- File Menu ----------------------------------------------------------
KStdAction::saveAs( document(), TQT_SLOT( saveAs() ),
actionCollection() );
new KAction( i18n( "Document &Info" ), 0,
miniWidget(), TQT_SLOT( info() ),
actionCollection(), "info" );
//-- Edit Menu -----------------------------------------------------
_popup = new KPopupMenu( _markList, "marklist_menu" );
KAction *act = new KAction( i18n( "Mark Current Page" ), "flag", CTRL+SHIFT+Key_M,
_markList, TQT_SLOT( markCurrent() ),
actionCollection(), "mark_current" );
act->plug( _popup );
act = new KAction( i18n( "Mark &All Pages" ), 0,
_markList, TQT_SLOT( markAll() ),
actionCollection(), "mark_all" );
act->plug( _popup );
act = new KAction( i18n( "Mark &Even Pages" ), 0,
_markList, TQT_SLOT( markEven() ),
actionCollection(), "mark_even" );
act->plug( _popup );
act = new KAction( i18n( "Mark &Odd Pages" ), 0,
_markList, TQT_SLOT( markOdd() ),
actionCollection(), "mark_odd" );
act->plug( _popup );
act = new KAction( i18n( "&Toggle Page Marks" ), 0,
_markList, TQT_SLOT( toggleMarks() ),
actionCollection(), "toggle" );
act->plug( _popup );
act = new KAction( i18n("&Remove Page Marks"), 0,
_markList, TQT_SLOT( removeMarks() ),
actionCollection(), "remove" );
act->plug( _popup );
// TODO -- disable entry if there aren't any page names
//-- View Menu ----------------------------------------------------------
_selectOrientation = new KSelectAction( i18n( "&Orientation" ), 0, 0, 0,
actionCollection(), "orientation_menu" );
_selectMedia = new KSelectAction( i18n( "Paper &Size" ), 0, 0, 0,
actionCollection(), "media_menu" );
_flick = new KToggleAction( i18n( "No &Flicker" ), 0,
this, TQT_SLOT( slotFlicker() ),
actionCollection(), "no_flicker" );
TQStringList orientations;
orientations.append( i18n( "Auto" ) );
orientations.append( i18n( "Portrait" ) );
orientations.append( i18n( "Landscape" ) );
orientations.append( i18n( "Upside Down" ) );
orientations.append( i18n( "Seascape" ) );
_selectOrientation->setItems( orientations );
connect( _selectOrientation, TQT_SIGNAL( activated( int ) ),
this, TQT_SLOT( slotOrientation( int ) ) );
connect( _selectMedia, TQT_SIGNAL( activated( int ) ),
this, TQT_SLOT( slotMedia( int ) ) );
{
KShortcut zoomInShort = KStdAccel::zoomIn();
zoomInShort.append( KKey( CTRL+Key_Equal ) );
_zoomIn = KStdAction::zoomIn( this, TQT_SLOT( slotZoomIn() ),
actionCollection(), "zoomIn" );
_zoomIn->setShortcut( zoomInShort );
}
_zoomOut = KStdAction::zoomOut( this, TQT_SLOT( slotZoomOut() ),
actionCollection(), "zoomOut" );
_zoomTo = new KSelectAction( i18n( "Zoom" ), "viewmag", 0, actionCollection(), "zoomTo" );
connect( _zoomTo, TQT_SIGNAL( activated( const TQString & ) ), this, TQT_SLOT( slotZoom( const TQString& ) ) );
_zoomTo->setEditable( true );
_zoomTo->clear();
TQValueList<double> mags = DisplayOptions::normalMagnificationValues();
TQStringList zooms;
int idx = 0;
int cur = 0;
for ( TQValueList<double>::iterator first = mags.begin(), last = mags.end();
first != last;
++first ) {
TQString str = TQString( "%1%" ).arg( KGlobal::locale()->formatNumber( *first * 100.0, 2 ));
str.remove( KGlobal::locale()->decimalSymbol() + "00" );
zooms << str;
if ( *first == 1.0 ) idx = cur;
++cur;
}
_zoomTo->setItems( zooms );
_zoomTo->setCurrentItem( idx );
_fitWidth = new KAction( i18n( "&Fit to Page Width" ), 0, this,
TQT_SLOT( slotFitToPage() ), actionCollection(),
"fit_to_page");
_fitScreen = new KAction( i18n( "&Fit to Screen" ), Key_S, this,
TQT_SLOT( slotFitToScreen() ), actionCollection(),
"fit_to_screen");
_prevPage = new KAction( i18n( "Previous Page" ), CTRL+Key_PageUp, this, TQT_SLOT( slotPrevPage() ),
actionCollection(), "prevPage" );
_prevPage->setWhatsThis( i18n( "Moves to the previous page of the document" ) );
_nextPage = new KAction( i18n( "Next Page" ), CTRL + Key_PageDown, this, TQT_SLOT( slotNextPage() ),
actionCollection(), "nextPage" );
_nextPage->setWhatsThis( i18n( "Moves to the next page of the document" ) );
_firstPage = KStdAction::firstPage( this, TQT_SLOT( slotGotoStart() ),
actionCollection(), "goToStart" );
_firstPage->setWhatsThis( i18n( "Moves to the first page of the document" ) );
_lastPage = KStdAction::lastPage( this, TQT_SLOT( slotGotoEnd() ),
actionCollection(), "goToEnd" );
_lastPage->setWhatsThis( i18n( "Moves to the last page of the document" ) );
KShortcut readUpShort = KStdAccel::shortcut( KStdAccel::Prior );
readUpShort.append( KKey( SHIFT+Key_Space ) );
_readUp = new KAction( i18n( "Read Up" ), "up",
readUpShort, this, TQT_SLOT( slotReadUp() ),
actionCollection(), "readUp" );
KShortcut readDownShort = KStdAccel::shortcut( KStdAccel::Next );
readDownShort.append( KKey( Key_Space ) );
_readDown = new KAction( i18n( "Read Down" ), "down",
readDownShort, this, TQT_SLOT( slotReadDown() ),
actionCollection(), "readDown" );
_gotoPage = KStdAction::gotoPage( _docManager, TQT_SLOT( goToPage() ),
actionCollection(), "goToPage" );
//-- Settings Menu ------------------------------------------------------
_showScrollBars = new KToggleAction( i18n( "Show &Scrollbars" ), 0,
actionCollection(), "show_scrollbars" );
_showScrollBars->setCheckedState(i18n("Hide &Scrollbars"));
_watchFile = new KToggleAction( i18n( "&Watch File" ), 0,
this, TQT_SLOT( slotWatchFile() ),
actionCollection(), "watch_file" );
_showPageList = new KToggleAction( i18n( "Show &Page List" ), 0,
actionCollection(), "show_page_list" );
_showPageList->setCheckedState(i18n("Hide &Page List"));
_showPageLabels = new KToggleAction( i18n("Show Page &Labels"), 0,
actionCollection(), "show_page_labels" );
_showPageLabels->setCheckedState(i18n("Hide Page &Labels"));
KStdAction::preferences( this, TQT_SLOT( slotConfigure() ), actionCollection() );
connect( _showScrollBars, TQT_SIGNAL( toggled( bool ) ),
TQT_SLOT( showScrollBars( bool ) ) );
connect( _showPageList, TQT_SIGNAL( toggled( bool ) ),
TQT_SLOT( showMarkList( bool ) ) );
connect( _showPageLabels, TQT_SIGNAL( toggled( bool ) ),
TQT_SLOT( showPageLabels( bool ) ) );
_extension = new KGVBrowserExtension( this );
setXMLFile( "kgv_part.rc" );
connect( miniWidget(), TQT_SIGNAL( newPageShown( int ) ),
this, TQT_SLOT( slotNewPage( int ) ) );
connect( _pageView, TQT_SIGNAL( contentsMoving( int, int ) ),
this, TQT_SLOT( slotPageMoved( int, int ) ) );
connect( _pageView, TQT_SIGNAL( nextPage() ), TQT_SLOT( slotNextPage() ));
connect( _pageView, TQT_SIGNAL( prevPage() ), TQT_SLOT( slotPrevPage() ));
connect( _pageView, TQT_SIGNAL( zoomIn() ), TQT_SLOT( slotZoomIn() ));
connect( _pageView, TQT_SIGNAL( zoomOut() ), TQT_SLOT( slotZoomOut() ));
connect( _pageView, TQT_SIGNAL( ReadUp() ), TQT_SLOT( slotReadUp() ));
connect( _pageView, TQT_SIGNAL( ReadDown() ), TQT_SLOT( slotReadDown() ));
TQStringList items = document()->mediaNames();
items.prepend( i18n( "Auto ") );
_selectMedia->setItems( items );
readSettings();
updatePageDepActions();
}
KGVPart::~KGVPart()
{
if ( _job ) _job -> kill();
delete _mimetypeScanner;
writeSettings();
}
KAboutData* KGVPart::createAboutData()
{
KAboutData* about = new KAboutData( "kghostview", I18N_NOOP( "KGhostView"),
KGHOSTVIEW_VERSION,
I18N_NOOP( "Viewer for PostScript (.ps, .eps) and Portable Document Format (.pdf) files"),
KAboutData::License_GPL,
"(C) 1998 Mark Donohoe, (C) 1999-2000 David Sweet, "
"(C) 2000-2003 Wilco Greven",
I18N_NOOP( "KGhostView displays, prints, and saves "
"PostScript and PDF files.\n"
"Based on original work by Tim Theisen." ) );
about->addAuthor( "Luís Pedro Coelho",
I18N_NOOP( "Current maintainer" ),
"luis@luispedro.org",
"http://luispedro.org" );
about->addAuthor( "Wilco Greven",
I18N_NOOP( "Maintainer 2000-2003" ),
"greven@kde.org" );
about->addAuthor( "David Sweet",
I18N_NOOP( "Maintainer 1999-2000" ),
"dsweet@kde.org",
"http://www.andamooka.org/~dsweet" );
about->addAuthor( "Mark Donohoe",
I18N_NOOP( "Original author" ),
"donohoe@kde.org" );
about->addAuthor( "David Faure",
I18N_NOOP( "Basis for shell"),
"faure@kde.org" );
about->addAuthor( "Daniel Duley",
I18N_NOOP( "Port to KParts" ),
"mosfet@kde.org" );
about->addAuthor( "Espen Sand",
I18N_NOOP( "Dialog boxes" ),
"espen@kde.org" );
about->addCredit( "Russell Lang of Ghostgum Software Pty Ltd",
I18N_NOOP( "for contributing GSView's DSC parser." ),
0,
"http://www.ghostgum.com.au/" );
about->addCredit( "The Ghostscript authors",
0, 0,
"http://www.cs.wisc.edu/~ghost/" );
return about;
}
bool KGVPart::closeURL()
{
document()->close();
_psWidget->stopInterpreter();
_docManager->getThumbnailService()->reset();
_markList->clear();
_pageDecorator->hide();
_scrollBox->clear();
_isFileDirty = false;
if ( _job )
{
_job -> kill();
_job = 0;
}
if( _mimetypeScanner != 0 )
_mimetypeScanner->abort();
if( !m_file.isEmpty() )
_fileWatcher->removeFile( m_file );
_mimetype = TQString::null;
updatePageDepActions();
stateChanged( "initState" );
return KParts::ReadOnlyPart::closeURL();
}
void KGVPart::writeSettings()
{
KConfigGroup general( KGVFactory::instance()->config(), "General" );
if ( !_embeddedInKGhostView )
general.writeEntry( "Display Options", DisplayOptions::toString( miniWidget()->displayOptions() ) );
general.sync();
}
void KGVPart::readSettings()
{
KConfigGroup general( KGVFactory::instance()->config(), "General" );
_showScrollBars->setChecked( Configuration::showScrollBars() );
showScrollBars( _showScrollBars->isChecked() );
_watchFile->setChecked( Configuration::watchFile() );
slotWatchFile();
_showPageList->setChecked( Configuration::showPageList() );
showMarkList( _showPageList->isChecked() );
_showPageLabels->setChecked( Configuration::watchFile() );
showPageLabels( _showPageLabels->isChecked() );
_showLogWindow = Configuration::messages();
if ( !_embeddedInKGhostView ) {
DisplayOptions options;
if ( DisplayOptions::fromString( options, general.readEntry( "Display Options" ) ) )
setDisplayOptions( options );
}
_psWidget->readSettings();
}
void KGVPart::slotScrollLeft()
{
_pageView->scrollLeft();
}
void KGVPart::slotFlicker()
{
if ( _psWidget ) _psWidget->setDoubleBuffering( _flick->isChecked() );
}
void KGVPart::slotScrollRight()
{
_pageView->scrollRight();
}
void KGVPart::slotScrollUp()
{
_pageView->scrollUp();
}
void KGVPart::slotScrollDown()
{
_pageView->scrollDown();
}
void KGVPart::slotReadUp()
{
if( !( document() && document()->isOpen() ) )
return;
if( !_pageView->readUp() ) {
if (_docManager->prevPage())
_pageView->scrollBottom();
}
}
void KGVPart::slotReadDown()
{
if( !( document() && document()->isOpen() ) )
return;
if( !_pageView->readDown() ) {
if( _docManager->nextPage() )
_pageView->scrollTop();
}
}
void KGVPart::slotPrevPage()
{
if( !document() || !document()->isOpen() ) return;
_docManager->prevPage();
}
void KGVPart::slotNextPage()
{
if( !document() || !document()->isOpen() ) return;
_docManager->nextPage();
}
void KGVPart::slotGotoStart()
{
_docManager->firstPage();
_pageView->scrollTop();
}
void KGVPart::slotGotoEnd()
{
_docManager->lastPage();
_pageView->scrollTop();
}
void KGVPart::slotWatchFile()
{
if( _watchFile->isChecked() )
_fileWatcher->startScan();
else {
_dirtyHandler->stop();
_fileWatcher->stopScan();
}
}
void KGVPart::slotCancelWatch()
{
_fileWatcher->stopScan();
_watchFile->setChecked( false );
}
/*
void KGVPart::slotFitWidth()
{
_docManager->fitWidth( pageView()->viewport()->width() -
2*( pageDecorator()->margin() + pageDecorator()->borderWidth() ) );
}
*/
void KGVPart::updateZoomActions()
{
if( !( document() && document()->isOpen() ) )
return;
_zoomIn->setEnabled(!_docManager->atMaxZoom());
_zoomOut->setEnabled(!_docManager->atMinZoom());
_zoomTo->setEnabled( true );
TQStringList items = _zoomTo->items();
bool updateItems = false;
if (_customZoomIndex != -1)
{
items.remove(items.at(_customZoomIndex));
_customZoomIndex = -1;
updateItems = true;
}
double zoom = floor(miniWidget()->displayOptions().magnification()*1000.0) / 10.0;
unsigned idx = 0;
for ( TQStringList::iterator first = items.begin(), last = items.end();
first != last;
++first ) {
TQString cur = *first;
cur.remove( cur.find( '%' ), 1 );
cur = cur.simplifyWhiteSpace();
bool ok = false;
double z = cur.toDouble(&ok);
if ( ok ) {
if (std::abs( z - zoom ) < 0.1 ) {
if (updateItems)
_zoomTo->setItems( items );
_zoomTo->setCurrentItem( idx );
return;
}
if ( z > zoom )
break;
}
++idx;
}
// Show percentage that isn't predefined
TQString str = TQString( "%1%" ).arg( KGlobal::locale()->formatNumber( zoom, 2 ));
str.remove( KGlobal::locale()->decimalSymbol() + "00" );
items.insert( items.at(idx), 1, str );
_zoomTo->setItems( items );
_zoomTo->setCurrentItem( idx );
_customZoomIndex = idx;
}
void KGVPart::updatePageDepActions()
{
bool hasDoc = document() && document()->isOpen();
_fitWidth->setEnabled( hasDoc );
_fitScreen->setEnabled( hasDoc );
_prevPage->setEnabled( hasDoc && !_docManager->atFirstPage() );
_firstPage->setEnabled( hasDoc && !_docManager->atFirstPage() );
_nextPage->setEnabled( hasDoc && !_docManager->atLastPage() );
_lastPage->setEnabled( hasDoc && !_docManager->atLastPage() );
_gotoPage->setEnabled( hasDoc &&
!(_docManager->atFirstPage() && _docManager->atLastPage()) );
updateReadUpDownActions();
}
void KGVPart::updateReadUpDownActions()
{
if( !( document() && document()->isOpen() ) )
{
_readUp->setEnabled( false );
_readDown->setEnabled( false );
return;
}
if( _docManager->atFirstPage() && _pageView->atTop() )
_readUp->setEnabled( false );
else
_readUp->setEnabled( true );
if( _docManager->atLastPage() && _pageView->atBottom() )
_readDown->setEnabled( false );
else
_readDown->setEnabled( true );
}
bool KGVPart::openURL( const KURL& url )
{
if( !url.isValid() )
return false;
if( !closeURL() )
return false;
m_url = url;
if ( !_stickyOptions ) _options.reset();
emit setWindowCaption( m_url.prettyURL() );
_mimetypeScanner = new KGVRun( m_url, 0, m_url.isLocalFile(), false );
connect( _mimetypeScanner, TQT_SIGNAL( finished( const TQString& ) ),
TQT_SLOT( slotMimetypeFinished( const TQString& ) ) );
connect( _mimetypeScanner, TQT_SIGNAL( error() ),
TQT_SLOT( slotMimetypeError() ) );
return true;
}
void KGVPart::openURLContinue()
{
kdDebug(4500) << "KGVPart::openURLContinue()" << endl;
if( m_url.isLocalFile() )
{
emit started( 0 );
m_file = m_url.path();
document()->openFile( m_file, _mimetype );
}
else
{
m_bTemp = true;
// Use same extension as remote file. This is important for
// mimetype-determination (e.g. koffice)
TQString extension;
TQString fileName = m_url.fileName();
int extensionPos = fileName.findRev( '.' );
if( extensionPos != -1 )
extension = fileName.mid( extensionPos ); // keep the '.'
KTempFile tempFile( TQString::null, extension );
m_file = tempFile.name();
_tmpFile.setName( m_file );
_tmpFile.open( IO_ReadWrite );
/*
d->m_job = KIO::file_copy( m_url, m_file, 0600, true, false, d->m_showProgressInfo );
emit started( d->m_job );
connect( d->m_job, TQT_SIGNAL( result( KIO::Job * ) ), this, TQT_SLOT( slotJobFinished ( KIO::Job * ) ) );
*/
_job = KIO::get( m_url, false, isProgressInfoEnabled() );
connect( _job, TQT_SIGNAL( data( KIO::Job*, const TQByteArray& ) ),
TQT_SLOT( slotData( KIO::Job*, const TQByteArray& ) ) );
connect( _job, TQT_SIGNAL( result( KIO::Job* ) ),
TQT_SLOT( slotJobFinished( KIO::Job* ) ) );
emit started( _job );
}
}
bool KGVPart::openFile()
{
return false;
}
void KGVPart::slotOpenFileCompleted()
{
_docManager->getThumbnailService()->setEnabled( true );
if( _isFileDirty )
{
_docManager->redisplay();
_isFileDirty = false;
}
else
{
if ( !_stickyOptions ) setDisplayOptions( DisplayOptions() );
_stickyOptions = false;
stateChanged( "documentState" );
if ( !_fileWatcher->contains( m_file ) )
_fileWatcher->addFile( m_file );
slotWatchFile();
updateZoomActions();
emit completed();
}
}
void KGVPart::slotGhostscriptOutput( char* data, int len )
{
_logWindow->append( TQString::fromLocal8Bit( data, len ) );
if( _showLogWindow )
_logWindow->show();
}
void KGVPart::slotGhostscriptError( const TQString& error )
{
_logWindow->setLabel( i18n( "<qt>An error occurred in rendering.<br>"
"<strong>%1</strong><br>"
"The display may contain errors.<br>"
"Below are any error messages which were received from Ghostscript "
"(<nobr><strong>%2</strong></nobr>) "
"which may help you.</qt>" )
.arg( error )
.arg( Configuration::interpreter() ),
true );
// The true above makes it show a "configure gs" option, but maybe we
// should trigger an auto-redetection?
// LPC (13 Apr 2003)
_logWindow->show();
}
void KGVPart::guiActivateEvent( KParts::GUIActivateEvent* event )
{
if( event->activated() && !_isGuiInitialized )
{
stateChanged( "initState" );
_isGuiInitialized = true;
}
KParts::ReadOnlyPart::guiActivateEvent( event );
}
void KGVPart::slotData( KIO::Job* job, const TQByteArray& data )
{
Q_ASSERT( _job == job );
kdDebug(4500) << "KGVPart::slotData: received " << data.size() << " bytes." << endl;
_tmpFile.writeBlock( data );
}
void KGVPart::slotMimetypeFinished( const TQString& type )
{
kdDebug(4500) << "KGVPart::slotMimetypeFinished( " << type << " )" << endl;
_mimetype = type;
if( !_mimetypeScanner || _mimetypeScanner->hasError() )
emit canceled( TQString::null );
else
openURLContinue();
_mimetypeScanner = 0;
}
void KGVPart::slotMimetypeError()
{
kdDebug(4500) << "KGVPart::slotMimetypeError()" << endl;
_mimetypeScanner = 0;
emit started( 0 );
//kapp->processEvents();
emit canceled( TQString::null );
}
void KGVPart::slotJobFinished( KIO::Job* job )
{
Q_ASSERT( _job == job );
kdDebug(4500) << "KGVPart::slotJobFinished" << endl;
_job = 0;
_tmpFile.close();
if( job->error() )
emit canceled( job->errorString() );
else
document()->openFile( m_file, _mimetype );
}
void KGVPart::slotFileDirty( const TQString& 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 is supposed to ensure that we don't update on every other byte
// that gets written to the file.
if ( fileName == m_file )
{
_dirtyHandler->start( 750, true );
}
}
void KGVPart::slotDoFileDirty()
{
kdDebug(4500) << "KGVPart::File changed" << endl;
_isFileDirty = true;
reloadFile();
}
void KGVPart::slotNewPage( int )
{
updatePageDepActions();
//media->setCurrentItem (miniWidget()->getSize()-1);
//orientation->setCurrentItem (miniWidget()->getOrientation()-1);
//TODO -- zoom
}
void KGVPart::slotPageMoved( int, int )
{
updateReadUpDownActions();
}
void KGVPart::slotOrientation( int id )
{
switch( id ) {
case 0: miniWidget()->restoreOverrideOrientation(); break;
case 1: miniWidget()->setOverrideOrientation( CDSC_PORTRAIT ); break;
case 2: miniWidget()->setOverrideOrientation( CDSC_LANDSCAPE ); break;
case 3: miniWidget()->setOverrideOrientation( CDSC_UPSIDEDOWN ); break;
case 4: miniWidget()->setOverrideOrientation( CDSC_SEASCAPE ); break;
default: ;
}
}
void KGVPart::slotMedia( int id )
{
if( id == 0 )
miniWidget()->restoreOverridePageMedia();
else
miniWidget()->setOverridePageMedia( _document->mediaNames()[id-1] );
}
void KGVPart::showScrollBars( bool show )
{
_pageView->enableScrollBars( show );
}
void KGVPart::showMarkList( bool show )
{
_markList->setShown( show );
_scrollBox->setShown( show );
_divider->setShown( show );
}
void KGVPart::showPageLabels( bool show )
{
_docManager->enablePageLabels( show );
}
void KGVPart::slotZoomIn()
{
_docManager->zoomIn();
updateZoomActions();
}
void KGVPart::slotZoomOut()
{
_docManager->zoomOut();
updateZoomActions();
}
void KGVPart::slotZoom( const TQString& nz )
{
TQString z = nz;
double zoom;
z.remove( z.find( '%' ), 1 );
zoom = KGlobal::locale()->readNumber( z ) / 100;
kdDebug( 4500 ) << "ZOOM = " << nz << ", setting zoom = " << zoom << endl;
DisplayOptions options = miniWidget()->displayOptions();
options.setMagnification( zoom );
miniWidget()->setDisplayOptions( options );
miniWidget()->redisplay();
_mainWidget->setFocus();
updateZoomActions();
}
void KGVPart::slotFitToPage()
{
kdDebug(4500) << "KGVPart::slotFitToPage()" << endl;
if( pageView()->page() )
miniWidget()->fitWidth( pageView()->viewport()->width() - 16 );
// We subtract 16 pixels because of the page decoration.
updateZoomActions();
}
void KGVPart::slotFitToScreen()
{
kdDebug(4500) << "KGVPart::slotFitToScreen()" << endl;
if ( _fitTimer->isActive() ) {
disconnect( _fitTimer, TQT_SIGNAL( timeout() ), this, 0 );
connect( _fitTimer, TQT_SIGNAL( timeout() ), TQT_SLOT( slotDoFitToScreen() ) );
}
else slotDoFitToScreen();
}
void KGVPart::slotDoFitToScreen()
{
kdDebug(4500) << "KGVPart::slotDoFitToScreen()" << endl;
if( pageView()->page() )
miniWidget()->fitWidthHeight( pageView()->viewport()->width() - 16,
pageView()->viewport()->height() - 16 );
updateZoomActions();
}
void KGVPart::reloadFile()
{
_psWidget->stopInterpreter();
_docManager->getThumbnailService()->reset();
document()->openFile( m_file, _mimetype );
}
void KGVPart::slotConfigure()
{
ConfigDialog::showSettings( this );
}
void KGVPart::slotConfigurationChanged()
{
readSettings();
_psWidget->readSettings();
miniWidget()->redisplay();
}
void KGVPart::setDisplayOptions( const DisplayOptions& options )
{
kdDebug(4500) << "KGVPart::setDisplayOptions()" << endl;
_stickyOptions = true;
_markList->select( options.page() );
_docManager->setDisplayOptions( options );
_selectOrientation->setCurrentItem( options.overrideOrientation() );
TQStringList medias = document()->mediaNames();
TQStringList::Iterator now = medias.find( options.overridePageMedia() );
if ( now != medias.end() ){
// The options are displayed in inverted order.
// Therefore, size() - index gets you the display index
_selectMedia->setCurrentItem( medias.size() - KGV::distance( medias.begin(), now ) );
} else {
_selectMedia->setCurrentItem( 0 );
}
}
KGVBrowserExtension::KGVBrowserExtension( KGVPart *parent ) :
KParts::BrowserExtension( parent, "KGVBrowserExtension" )
{
emit enableAction( "print", true );
setURLDropHandlingEnabled( true );
}
void KGVBrowserExtension::print()
{
((KGVPart *)parent())->document()->print();
}
KGVRun::KGVRun( const KURL& url, mode_t mode, bool isLocalFile,
bool showProgressInfo ) :
KRun( url, mode, isLocalFile, showProgressInfo )
{
connect( this, TQT_SIGNAL( finished() ), TQT_SLOT( emitFinishedWithMimetype() ) );
}
KGVRun::~KGVRun()
{}
void KGVRun::foundMimeType( const TQString& mimetype )
{
kdDebug(4500) << "KGVRun::foundMimeType( " << mimetype << " )" << endl;
if( m_job && m_job->inherits( "KIO::TransferJob" ) )
{
KIO::TransferJob *job = static_cast< KIO::TransferJob* >( m_job );
job->putOnHold();
m_job = 0;
}
_mimetype = mimetype;
m_bFinished = true;
m_timer.start( 0, true );
}
void KGVPart::updateFullScreen( bool fs )
{
if ( fs ) showMarkList( false );
else showMarkList( _showPageList->isChecked() );
}
void KGVPart::showPopup( int, int, const TQPoint& pos )
{
_popup->exec( pos );
}
#include "kgv_view.moc"
// vim:sw=4:sts=4:ts=8:sta:tw=78:noet
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