Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 141 insertions, 0 deletions

diff --git a/libkonq/kivdirectoryoverlay.cc b/libkonq/kivdirectoryoverlay.cc
new file mode 100644
index 000000000..5c9d14783
--- /dev/null
+++ b/libkonq/kivdirectoryoverlay.cc
@@ -0,0 +1,141 @@
+/*  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 <qdict.h>
+#include <qpixmap.h>
+#include <qpainter.h>
+#include <qbitmap.h>
+#include <qimage.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, SIGNAL(completed()), SLOT(slotCompleted()));
+        connect(m_lister, SIGNAL(newItems( const KFileItemList& )), 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 QDict<int>;
+        m_popularIcons->setAutoDelete(true);
+        m_lister->openURL(m_directory->item()->url());
+    } else {
+        emit finished();
+    }
+}
+
+void KIVDirectoryOverlay::timerEvent(QTimerEvent *)
+{
+    m_lister->stop();
+}
+
+void KIVDirectoryOverlay::slotCompleted()
+{
+    if (!m_popularIcons) return;
+
+    // Look through the histogram for the most popular mimetype
+    QDictIterator<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() ) {
+
+        QString 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"