konq_pixmapprovider.cpp

/* This file is part of the KDE project
   Copyright (C) 2000 Carsten Pfeiffer <pfeiffer@kde.org>
 
   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; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/
 
#include <tqbitmap.h>
 
#include <tdeapplication.h>
#include <kiconloader.h>
#include <kmimetype.h>
#include <kshell.h>
#include <kprotocolinfo.h>
 
#include "konq_pixmapprovider.h"
 
KonqPixmapProvider * KonqPixmapProvider::s_self = 0L;
 
KonqPixmapProvider * KonqPixmapProvider::self()
{
    if ( !s_self )
    s_self = new KonqPixmapProvider( kapp, "KonqPixmapProvider" );
 
    return s_self;
}
 
KonqPixmapProvider::KonqPixmapProvider( TQObject *parent, const char *name )
    : KPixmapProvider(), 
      KonqFavIconMgr( parent, name )
{
}
 
KonqPixmapProvider::~KonqPixmapProvider()
{
    s_self = 0L;
}
 
// at first, tries to find the iconname in the cache
// if not available, tries to find the pixmap for the mimetype of url
// if that fails, gets the icon for the protocol
// finally, inserts the url/icon pair into the cache
TQString KonqPixmapProvider::iconNameFor( const TQString& url )
{
    TQMapIterator<TQString,TQString> it = iconMap.find( url );
    TQString icon;
    if ( it != iconMap.end() ) {
        icon = it.data();
        if ( !icon.isEmpty() ) {
        return icon;
    }
    }
 
    if ( url.isEmpty() ) {
        // Use the folder icon for the empty URL
        icon = KMimeType::mimeType( "inode/directory" )->KServiceType::icon();
        Q_ASSERT( !icon.isEmpty() );
    }
    else
    {
        KURL u;
        if ( url.at(0) == '~' )
        u.setPath( KShell::tildeExpand( url ) );
        else if ( url.at(0) == '/' )
        u.setPath( url );
        else
        u = url;
 
        icon = KMimeType::iconForURL( u );
        //Q_ASSERT( !icon.isEmpty() );
    }
 
 
    // cache the icon found for url
    iconMap.insert( url, icon );
 
    return icon;
}
 
TQPixmap KonqPixmapProvider::pixmapFor( const TQString& url, int size )
{
    return loadIcon( url, iconNameFor( url ), size );
}
 
void KonqPixmapProvider::load( TDEConfig *kc, const TQString& key )
{
    iconMap.clear();
    TQStringList list;
    list = kc->readPathListEntry( key );
    TQStringList::Iterator it = list.begin();
    TQString url, icon;
    while ( it != list.end() ) {
    url = (*it);
    if ( ++it == list.end() )
        break;
    icon = (*it);
    iconMap.insert( url, icon );
 
    ++it;
    }
}
 
// only saves the cache for the given list of items to prevent the cache
// from growing forever.
void KonqPixmapProvider::save( TDEConfig *kc, const TQString& key,
                   const TQStringList& items )
{
    TQStringList list;
    TQStringList::ConstIterator it = items.begin();
    TQMapConstIterator<TQString,TQString> mit;
    while ( it != items.end() ) {
    mit = iconMap.find( *it );
    if ( mit != iconMap.end() ) {
        list.append( mit.key() );
        list.append( mit.data() );
    }
 
    ++it;
    }
    kc->writePathEntry( key, list );
}
 
void KonqPixmapProvider::notifyChange( bool isHost, TQString hostOrURL,
    TQString iconName )
{
    for ( TQMapIterator<TQString,TQString> it = iconMap.begin();
          it != iconMap.end();
          ++it )
    {
        KURL url( it.key() );
        if ( url.protocol().startsWith("http") &&
            ( ( isHost && url.host() == hostOrURL ) ||
                ( url.host() + url.path() == hostOrURL ) ) )
        {
            // For host default-icons still query the favicon manager to get
            // the correct icon for pages that have an own one.
            TQString icon = isHost ? KMimeType::favIconForURL( url ) : iconName;
            if ( !icon.isEmpty() )
                *it = icon;
        }
    }
 
    emit changed();
}
 
void KonqPixmapProvider::clear()
{
    iconMap.clear();
}
 
TQPixmap KonqPixmapProvider::loadIcon( const TQString& url, const TQString& icon,
                      int size )
{
    if ( size <= TDEIcon::SizeSmall )
    return SmallIcon( icon, size );
 
    KURL u;
    if ( url.at(0) == '/' )
    u.setPath( url );
    else
    u = url;
 
    TQPixmap big;
 
    // favicon? => blend the favicon in the large
    if ( url.startsWith( "http:/" ) && icon.startsWith("favicons/") ) {
    TQPixmap small = SmallIcon( icon, size );
    big = TDEGlobal::iconLoader()->loadIcon( KProtocolInfo::icon("http"),
                           TDEIcon::Panel, size );
 
    int x = big.width()  - small.width();
    int y = 0;
 
    if ( big.mask() ) {
        TQBitmap mask = *big.mask();
        bitBlt( &mask, x, y,
            small.mask() ? const_cast<TQBitmap *>(small.mask()) : &small, 0, 0,
            small.width(), small.height(),
            small.mask() ? OrROP : SetROP );
        big.setMask( mask );
    }
 
    bitBlt( &big, x, y, &small );
    }
 
    else // not a favicon..
    big = TDEGlobal::iconLoader()->loadIcon( icon, TDEIcon::Panel, size );
 
    return big;
}