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/* This file is part of the KDE libraries
Copyright (C) 2002 Simon MacMullen
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <tqdict.h>
#include <tqpixmap.h>
#include <tqpainter.h>
#include <tqbitmap.h>
#include <tqimage.h>
#include <kfileivi.h>
#include <kfileitem.h>
#include <kapplication.h>
#include <kdirlister.h>
#include <kstandarddirs.h>
#include <kiconloader.h>
#include <konq_settings.h>
#include <klocale.h>
#include <kdebug.h>
#include "kivdirectoryoverlay.h"
KIVDirectoryOverlay::KIVDirectoryOverlay(KFileIVI* directory)
: m_lister(0), m_foundItems(false),
m_containsFolder(false), m_popularIcons(0)
{
if (!m_lister)
{
m_lister = new KDirLister;
m_lister->setAutoErrorHandlingEnabled(false, 0);
connect(m_lister, TQT_SIGNAL(completed()), TQT_SLOT(slotCompleted()));
connect(m_lister, TQT_SIGNAL(newItems( const KFileItemList& )), TQT_SLOT(slotNewItems( const KFileItemList& )));
m_lister->setShowingDotFiles(false);
}
m_directory = directory;
}
KIVDirectoryOverlay::~KIVDirectoryOverlay()
{
if (m_lister) m_lister->stop();
delete m_lister;
delete m_popularIcons;
}
void KIVDirectoryOverlay::start()
{
if ( m_directory->item()->isReadable() ) {
m_popularIcons = new TQDict<int>;
m_popularIcons->setAutoDelete(true);
m_lister->openURL(m_directory->item()->url());
} else {
emit finished();
}
}
void KIVDirectoryOverlay::timerEvent(TQTimerEvent *)
{
m_lister->stop();
}
void KIVDirectoryOverlay::slotCompleted()
{
if (!m_popularIcons) return;
// Look through the histogram for the most popular mimetype
TQDictIterator<int> currentIcon( (*m_popularIcons) );
unsigned int best = 0;
unsigned int total = 0;
for ( ; currentIcon.current(); ++currentIcon ) {
unsigned int currentCount = (*currentIcon.current());
total += currentCount;
if ( best < currentCount ) {
best = currentCount;
m_bestIcon = currentIcon.currentKey();
}
}
// Only show folder if there's no other candidate. Most folders contain
// folders. We know this.
if ( m_bestIcon.isNull() && m_containsFolder ) {
m_bestIcon = "folder";
}
if ( best * 2 < total ) {
m_bestIcon = "kmultiple";
}
if (!m_bestIcon.isNull()) {
m_directory->setOverlay(m_bestIcon);
}
delete m_popularIcons;
m_popularIcons = 0;
emit finished();
}
void KIVDirectoryOverlay::slotNewItems( const KFileItemList& items )
{
if ( !m_popularIcons) return;
KFileItemListIterator files( items );
KFileItem* file;
for ( ; (file = files.current()) != 0; ++files ) {
if ( file -> isFile() ) {
TQString iconName = file -> iconName();
if (!iconName) continue;
int* iconCount = m_popularIcons -> find( file -> iconName() );
if (!iconCount) {
iconCount = new int(0);
Q_ASSERT(file);
m_popularIcons -> insert(file -> iconName(), iconCount);
}
(*iconCount)++;
} else if ( file -> isDir() ) {
m_containsFolder = true;
}
}
m_foundItems = true;
}
#include "kivdirectoryoverlay.moc"
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