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libkonq

konq_pixmapprovider.cc
00001 /* This file is part of the KDE project
00002    Copyright (C) 2000 Carsten Pfeiffer <pfeiffer@kde.org>
00003 
00004    This program is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU General Public
00006    License as published by the Free Software Foundation; either
00007    version 2 of the License, or (at your option) any later version.
00008 
00009    This program is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     General Public License for more details.
00013 
00014    You should have received a copy of the GNU General Public License
00015    along with this program; see the file COPYING.  If not, write to
00016    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017    Boston, MA 02110-1301, USA.
00018 */
00019 
00020 #include <tqbitmap.h>
00021 
00022 #include <tdeapplication.h>
00023 #include <kiconloader.h>
00024 #include <kmimetype.h>
00025 #include <kshell.h>
00026 #include <kprotocolinfo.h>
00027 
00028 #include "konq_pixmapprovider.h"
00029 
00030 KonqPixmapProvider * KonqPixmapProvider::s_self = 0L;
00031 
00032 KonqPixmapProvider * KonqPixmapProvider::self()
00033 {
00034     if ( !s_self )
00035     s_self = new KonqPixmapProvider( TQT_TQOBJECT(kapp), "KonqPixmapProvider" );
00036 
00037     return s_self;
00038 }
00039 
00040 KonqPixmapProvider::KonqPixmapProvider( TQObject *parent, const char *name )
00041     : KPixmapProvider(), 
00042       KonqFavIconMgr( parent, name )
00043 {
00044 }
00045 
00046 KonqPixmapProvider::~KonqPixmapProvider()
00047 {
00048     s_self = 0L;
00049 }
00050 
00051 // at first, tries to find the iconname in the cache
00052 // if not available, tries to find the pixmap for the mimetype of url
00053 // if that fails, gets the icon for the protocol
00054 // finally, inserts the url/icon pair into the cache
00055 TQString KonqPixmapProvider::iconNameFor( const TQString& url )
00056 {
00057     TQMapIterator<TQString,TQString> it = iconMap.find( url );
00058     TQString icon;
00059     if ( it != iconMap.end() ) {
00060         icon = it.data();
00061         if ( !icon.isEmpty() ) {
00062         return icon;
00063     }
00064     }
00065 
00066     if ( url.isEmpty() ) {
00067         // Use the folder icon for the empty URL
00068         icon = KMimeType::mimeType( "inode/directory" )->KServiceType::icon();
00069         Q_ASSERT( !icon.isEmpty() );
00070     }
00071     else
00072     {
00073         KURL u;
00074         if ( url.at(0) == '~' )
00075         u.setPath( KShell::tildeExpand( url ) );
00076         else if ( url.at(0) == '/' )
00077         u.setPath( url );
00078         else
00079         u = url;
00080 
00081         icon = KMimeType::iconForURL( u );
00082         //Q_ASSERT( !icon.isEmpty() );
00083     }
00084 
00085 
00086     // cache the icon found for url
00087     iconMap.insert( url, icon );
00088 
00089     return icon;
00090 }
00091 
00092 TQPixmap KonqPixmapProvider::pixmapFor( const TQString& url, int size )
00093 {
00094     return loadIcon( url, iconNameFor( url ), size );
00095 }
00096 
00097 void KonqPixmapProvider::load( TDEConfig *kc, const TQString& key )
00098 {
00099     iconMap.clear();
00100     TQStringList list;
00101     list = kc->readPathListEntry( key );
00102     TQStringList::Iterator it = list.begin();
00103     TQString url, icon;
00104     while ( it != list.end() ) {
00105     url = (*it);
00106     if ( ++it == list.end() )
00107         break;
00108     icon = (*it);
00109     iconMap.insert( url, icon );
00110 
00111     ++it;
00112     }
00113 }
00114 
00115 // only saves the cache for the given list of items to prevent the cache
00116 // from growing forever.
00117 void KonqPixmapProvider::save( TDEConfig *kc, const TQString& key,
00118                    const TQStringList& items )
00119 {
00120     TQStringList list;
00121     TQStringList::ConstIterator it = items.begin();
00122     TQMapConstIterator<TQString,TQString> mit;
00123     while ( it != items.end() ) {
00124     mit = iconMap.find( *it );
00125     if ( mit != iconMap.end() ) {
00126         list.append( mit.key() );
00127         list.append( mit.data() );
00128     }
00129 
00130     ++it;
00131     }
00132     kc->writePathEntry( key, list );
00133 }
00134 
00135 void KonqPixmapProvider::notifyChange( bool isHost, TQString hostOrURL,
00136     TQString iconName )
00137 {
00138     for ( TQMapIterator<TQString,TQString> it = iconMap.begin();
00139           it != iconMap.end();
00140           ++it )
00141     {
00142         KURL url( it.key() );
00143         if ( url.protocol().startsWith("http") &&
00144             ( ( isHost && url.host() == hostOrURL ) ||
00145                 ( url.host() + url.path() == hostOrURL ) ) )
00146         {
00147             // For host default-icons still query the favicon manager to get
00148             // the correct icon for pages that have an own one.
00149             TQString icon = isHost ? KMimeType::favIconForURL( url ) : iconName;
00150             if ( !icon.isEmpty() )
00151                 *it = icon;
00152         }
00153     }
00154 
00155     emit changed();
00156 }
00157 
00158 void KonqPixmapProvider::clear()
00159 {
00160     iconMap.clear();
00161 }
00162 
00163 TQPixmap KonqPixmapProvider::loadIcon( const TQString& url, const TQString& icon,
00164                       int size )
00165 {
00166     if ( size <= TDEIcon::SizeSmall )
00167     return SmallIcon( icon, size );
00168 
00169     KURL u;
00170     if ( url.at(0) == '/' )
00171     u.setPath( url );
00172     else
00173     u = url;
00174 
00175     TQPixmap big;
00176 
00177     // favicon? => blend the favicon in the large
00178     if ( url.startsWith( "http:/" ) && icon.startsWith("favicons/") ) {
00179     TQPixmap small = SmallIcon( icon, size );
00180     big = TDEGlobal::iconLoader()->loadIcon( KProtocolInfo::icon("http"),
00181                            TDEIcon::Panel, size );
00182 
00183     int x = big.width()  - small.width();
00184     int y = 0;
00185 
00186     if ( big.mask() ) {
00187         TQBitmap mask = *big.mask();
00188         bitBlt( &mask, x, y,
00189             small.mask() ? TQT_TQPIXMAP(const_cast<TQBitmap *>(small.mask())) : &small, 0, 0,
00190             small.width(), small.height(),
00191             small.mask() ? OrROP : SetROP );
00192         big.setMask( mask );
00193     }
00194 
00195     bitBlt( &big, x, y, &small );
00196     }
00197 
00198     else // not a favicon..
00199     big = TDEGlobal::iconLoader()->loadIcon( icon, TDEIcon::Panel, size );
00200 
00201     return big;
00202 }

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