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142 lines
3.9 KiB
142 lines
3.9 KiB
/* This file is part of the KDE libraries
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Copyright (C) 2002 Simon MacMullen
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <tqdict.h>
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#include <tqpixmap.h>
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#include <tqpainter.h>
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#include <tqbitmap.h>
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#include <tqimage.h>
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#include <tdefileivi.h>
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#include <tdefileitem.h>
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#include <tdeapplication.h>
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#include <kdirlister.h>
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#include <kstandarddirs.h>
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#include <kiconloader.h>
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#include <konq_settings.h>
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#include <tdelocale.h>
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#include <kdebug.h>
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#include "kivdirectoryoverlay.h"
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KIVDirectoryOverlay::KIVDirectoryOverlay(KFileIVI* directory)
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: m_lister(0), m_foundItems(false),
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m_containsFolder(false), m_popularIcons(0)
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{
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if (!m_lister)
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{
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m_lister = new KDirLister;
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m_lister->setAutoErrorHandlingEnabled(false, 0);
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connect(m_lister, TQT_SIGNAL(completed()), TQT_SLOT(slotCompleted()));
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connect(m_lister, TQT_SIGNAL(newItems( const KFileItemList& )), TQT_SLOT(slotNewItems( const KFileItemList& )));
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m_lister->setShowingDotFiles(false);
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}
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m_directory = directory;
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}
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KIVDirectoryOverlay::~KIVDirectoryOverlay()
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{
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if (m_lister) m_lister->stop();
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delete m_lister;
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delete m_popularIcons;
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}
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void KIVDirectoryOverlay::start()
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{
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if ( m_directory->item()->isReadable() ) {
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m_popularIcons = new TQDict<int>;
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m_popularIcons->setAutoDelete(true);
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m_lister->openURL(m_directory->item()->url());
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} else {
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emit finished();
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}
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}
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void KIVDirectoryOverlay::timerEvent(TQTimerEvent *)
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{
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m_lister->stop();
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}
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void KIVDirectoryOverlay::slotCompleted()
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{
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if (!m_popularIcons) return;
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// Look through the histogram for the most popular mimetype
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TQDictIterator<int> currentIcon( (*m_popularIcons) );
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unsigned int best = 0;
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unsigned int total = 0;
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for ( ; currentIcon.current(); ++currentIcon ) {
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unsigned int currentCount = (*currentIcon.current());
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total += currentCount;
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if ( best < currentCount ) {
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best = currentCount;
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m_bestIcon = currentIcon.currentKey();
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}
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}
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// Only show folder if there's no other candidate. Most folders contain
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// folders. We know this.
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if ( m_bestIcon.isNull() && m_containsFolder ) {
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m_bestIcon = "folder";
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}
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if ( best * 2 < total ) {
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m_bestIcon = "application-vnd.tde.tdemultiple";
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}
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if (!m_bestIcon.isNull()) {
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m_directory->setOverlay(m_bestIcon);
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}
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delete m_popularIcons;
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m_popularIcons = 0;
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emit finished();
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}
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void KIVDirectoryOverlay::slotNewItems( const KFileItemList& items )
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{
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if ( !m_popularIcons) return;
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KFileItemListIterator files( items );
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KFileItem* file;
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for ( ; (file = files.current()) != 0; ++files ) {
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if ( file -> isFile() ) {
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TQString iconName = file -> iconName();
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if (!iconName) continue;
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int* iconCount = m_popularIcons -> find( file -> iconName() );
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if (!iconCount) {
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iconCount = new int(0);
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Q_ASSERT(file);
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m_popularIcons -> insert(file -> iconName(), iconCount);
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}
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(*iconCount)++;
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} else if ( file -> isDir() ) {
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m_containsFolder = true;
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}
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}
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m_foundItems = true;
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}
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#include "kivdirectoryoverlay.moc"
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