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/* This file is part of the KDE project
Copyright (C) 2002 Matthias Kretz <kretz@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2
as published by the Free Software Foundation.
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.
*/
// $Id$
#include "kviewbrowser.h"
#include "kmyfileitemlist.h"
#include <qcursor.h>
#include <kdirlister.h>
#include <kaction.h>
#include <klocale.h>
#include <kgenericfactory.h>
#include <kdebug.h>
#include <kimageviewer/viewer.h>
#include <kimageviewer/canvas.h>
#include <kparts/browserextension.h>
#include <kapplication.h>
#include <kimageio.h>
typedef KGenericFactory<KViewBrowser> KViewBrowserFactory;
K_EXPORT_COMPONENT_FACTORY( kview_browserplugin, KViewBrowserFactory( "kviewbrowserplugin" ) )
KViewBrowser::KViewBrowser( QObject* parent, const char* name, const QStringList & )
: Plugin( parent, name )
, m_pDirLister( 0 )
, m_pFileItemList( 0 )
, m_bShowCurrent( false )
{
m_pViewer = static_cast<KImageViewer::Viewer *>( parent );
if( m_pViewer )
{
m_paBack = KStdAction::back ( this, SLOT( slotBack() ), actionCollection(), "previous_image" );
m_paBack->setShortcut( SHIFT+Key_Left );
m_paForward = KStdAction::forward( this, SLOT( slotForward() ), actionCollection(), "next_image" );
m_paForward->setShortcut( SHIFT+Key_Right );
m_pExtension = m_pViewer->browserExtension();
}
else
kdWarning( 4630 ) << "no KImageViewer interface found - the browser plugin won't work" << endl;
}
KViewBrowser::~KViewBrowser()
{
delete m_pDirLister;
delete m_pFileItemList;
}
void KViewBrowser::openURL(const KURL &u)
{
if (m_pViewer)
{
// Opening new URL resets zoom, so remember it.
double oldZoom = m_pViewer->canvas()->zoom();
m_pViewer->openURL(u);
m_pViewer->canvas()->setZoom(oldZoom);
}
if( m_pExtension )
{
emit m_pExtension->setLocationBarURL( u.prettyURL() );
}
}
void KViewBrowser::slotBack()
{
setupDirLister();
if( ! m_pFileItemList )
return;
KFileItem * item = m_pFileItemList->prev();
if( ! item )
item = m_pFileItemList->last();
if( item )
{
kdDebug( 4630 ) << item->url().prettyURL() << endl;
openURL( item->url() );
}
else
kdDebug( 4630 ) << "no file found" << endl;
m_bShowCurrent = false;
}
void KViewBrowser::slotForward()
{
setupDirLister();
if( ! m_pFileItemList )
return;
KFileItem * item = m_bShowCurrent ? m_pFileItemList->current() : m_pFileItemList->next();
if( ! item )
item = m_pFileItemList->first();
if( item )
{
kdDebug( 4630 ) << item->url().prettyURL() << endl;
openURL( item->url() );
}
else
kdDebug( 4630 ) << "no file found" << endl;
m_bShowCurrent = false;
}
void KViewBrowser::slotNewItems( const KFileItemList & items )
{
kdDebug( 4630 ) << k_funcinfo << endl;
delete m_pFileItemList;
m_pFileItemList = new KMyFileItemList( items );
m_pFileItemList->sort();
// set the current pointer on the currently open image
KFileItem * item = m_pFileItemList->first();
for( ; item; item = m_pFileItemList->next() )
if( item->url() == m_pViewer->url() )
break;
}
void KViewBrowser::slotDeleteItem( KFileItem * item )
{
bool setToFirst = false;
if( m_pFileItemList->current() == item )
{
// The current image is being removed
// we have to take care, that the next slotForward call returns the new current item
m_bShowCurrent = true;
if( m_pFileItemList->getLast() == item )
// The the current image is the last image - wrap around to the first
setToFirst = true;
}
m_pFileItemList->remove( item );
if( setToFirst )
( void )m_pFileItemList->first();
}
void KViewBrowser::setupDirLister()
{
if( ! m_pDirLister )
{
kdDebug( 4630 ) << "create new KDirLister" << endl;
m_pDirLister = new KDirLister();
m_pDirLister->setMimeFilter( KImageIO::mimeTypes( KImageIO::Reading ) );
m_pDirLister->setShowingDotFiles( true );
connect( m_pDirLister, SIGNAL( newItems( const KFileItemList & ) ), SLOT( slotNewItems( const KFileItemList & ) ) );
connect( m_pDirLister, SIGNAL( deleteItem( KFileItem * ) ), SLOT( slotDeleteItem( KFileItem * ) ) );
}
if( m_pDirLister->url() != KURL( m_pViewer->url().directory( true, false ) ) )
{
QApplication::setOverrideCursor( WaitCursor );
QString url = m_pViewer->url().prettyURL();
int pos = url.findRev( "/" );
url = url.left( (unsigned int)pos );
kdDebug( 4630 ) << "open KDirLister for " << url << endl;
m_pDirLister->openURL( KURL( url ));
while( ! m_pDirLister->isFinished() )
kapp->processEvents();
//while( ! m_pFileItemList )
//kapp->processEvents();
QApplication::restoreOverrideCursor();
}
}
// vim:sw=4:ts=4:cindent
#include "kviewbrowser.moc"
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