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Diffstat (limited to 'kcontrol/konq/previews.cpp')
| -rw-r--r-- | kcontrol/konq/previews.cpp | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/kcontrol/konq/previews.cpp b/kcontrol/konq/previews.cpp new file mode 100644 index 000000000..20d9a4499 --- /dev/null +++ b/kcontrol/konq/previews.cpp @@ -0,0 +1,219 @@ +/* This file is part of the KDE libraries + Copyright (C) 2002 David Faure <faure@kde.org> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License version 2 as published by the Free Software Foundation. + + 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. +*/ +// +// File previews configuration +// + +#include <qcheckbox.h> +#include <qlabel.h> +#include <qlayout.h> +#include <qwhatsthis.h> + +#include <dcopclient.h> + +#include <kapplication.h> +#include <kconfig.h> +#include <kdialog.h> +#include <kglobal.h> +#include <klistview.h> +#include <klocale.h> +#include <knuminput.h> +#include <kprotocolinfo.h> + +#include "previews.h" + +//----------------------------------------------------------------------------- + +class PreviewCheckListItem : public QCheckListItem +{ + public: + PreviewCheckListItem( QListView *parent, const QString &text ) + : QCheckListItem( parent, text, CheckBoxController ) + {} + + PreviewCheckListItem( QListViewItem *parent, const QString &text ) + : QCheckListItem( parent, text, CheckBox ) + {} + + protected: + void stateChange( bool ) + { + static_cast<KPreviewOptions *>( listView()->parent() )->changed(); + } +}; + +KPreviewOptions::KPreviewOptions( QWidget *parent, const char */*name*/ ) + : KCModule( parent, "kcmkonq" ) +{ + QVBoxLayout *lay = new QVBoxLayout(this, 0, KDialog::spacingHint()); + + lay->addWidget( new QLabel( i18n("<p>Allow previews, \"Folder Icons Reflect Contents\", and " + "retrieval of meta-data on protocols:</p>"), this ) ); + + setQuickHelp( i18n("<h1>Preview Options</h1> Here you can modify the behavior " + "of Konqueror when it shows the files in a folder." + "<h2>The list of protocols:</h2> check the protocols over which " + "previews should be shown; uncheck those over which they should not. " + "For instance, you might want to show previews over SMB if the local " + "network is fast enough, but you might disable it for FTP if you often " + "visit very slow FTP sites with large images." + "<h2>Maximum File Size:</h2> select the maximum file size for which " + "previews should be generated. For instance, if set to 1 MB (the default), " + "no preview will be generated for files bigger than 1 MB, for speed reasons.")); + + // Listview containing checkboxes for all protocols that support listing + KListView *listView = new KListView( this, "listView" ); + listView->addColumn( i18n( "Select Protocols" ) ); + listView->setFullWidth( true ); + + QHBoxLayout *hbox = new QHBoxLayout( lay ); + hbox->addWidget( listView ); + hbox->addStretch(); + + PreviewCheckListItem *localItems = new PreviewCheckListItem( listView, + i18n( "Local Protocols" ) ); + PreviewCheckListItem *inetItems = new PreviewCheckListItem( listView, + i18n( "Internet Protocols" ) ); + + QStringList protocolList = KProtocolInfo::protocols(); + protocolList.sort(); + QStringList::Iterator it = protocolList.begin(); + + KURL url; + url.setPath("/"); + + for ( ; it != protocolList.end() ; ++it ) + { + url.setProtocol( *it ); + if ( KProtocolInfo::supportsListing( url ) ) + { + QCheckListItem *item; + if ( KProtocolInfo::protocolClass( *it ) == ":local" ) + item = new PreviewCheckListItem( localItems, ( *it ) ); + else + item = new PreviewCheckListItem( inetItems, ( *it ) ); + + m_items.append( item ); + } + } + + listView->setOpen( localItems, true ); + listView->setOpen( inetItems, true ); + + QWhatsThis::add( listView, + i18n("This option makes it possible to choose when the file previews, " + "smart folder icons, and meta-data in the File Manager should be activated.\n" + "In the list of protocols that appear, select which ones are fast " + "enough for you to allow previews to be generated.") ); + + QLabel *label = new QLabel( i18n( "&Maximum file size:" ), this ); + lay->addWidget( label ); + + m_maxSize = new KDoubleNumInput( this ); + m_maxSize->setSuffix( i18n(" MB") ); + m_maxSize->setRange( 0.02, 10, 0.02, true ); + m_maxSize->setPrecision( 1 ); + label->setBuddy( m_maxSize ); + lay->addWidget( m_maxSize ); + connect( m_maxSize, SIGNAL( valueChanged(double) ), SLOT( changed() ) ); + + m_boostSize = new QCheckBox(i18n("&Increase size of previews relative to icons"), this); + connect( m_boostSize, SIGNAL( toggled(bool) ), SLOT( changed() ) ); + lay->addWidget(m_boostSize); + + m_useFileThumbnails = new QCheckBox(i18n("&Use thumbnails embedded in files"), this); + connect( m_useFileThumbnails, SIGNAL( toggled(bool) ), SLOT( changed() ) ); + + lay->addWidget(m_useFileThumbnails); + + QWhatsThis::add( m_useFileThumbnails, + i18n("Select this to use thumbnails that are found inside some " + "file types (e.g. JPEG). This will increase speed and reduce " + "disk usage. Deselect it if you have files that have been processed " + "by programs which create inaccurate thumbnails, such as ImageMagick.") ); + + lay->addWidget( new QWidget(this), 10 ); + + load(); +} + +// Default: 1 MB +#define DEFAULT_MAXSIZE (1024*1024) + +void KPreviewOptions::load(bool useDefaults) +{ + // *** load and apply to GUI *** + KGlobal::config()->setReadDefaults(useDefaults); + KConfigGroup group( KGlobal::config(), "PreviewSettings" ); + QPtrListIterator<QCheckListItem> it( m_items ); + + for ( ; it.current() ; ++it ) { + QString protocol( it.current()->text() ); + if ( ( protocol == "file" ) && ( !group.hasKey ( protocol ) ) ) + // file should be enabled in case is not defined because if not so + // than preview's lost when size is changed from default one + it.current()->setOn( true ); + else + it.current()->setOn( group.readBoolEntry( protocol, false ) ); + } + // config key is in bytes (default value 1MB), numinput is in MB + m_maxSize->setValue( ((double)group.readNumEntry( "MaximumSize", DEFAULT_MAXSIZE )) / (1024*1024) ); + + m_boostSize->setChecked( group.readBoolEntry( "BoostSize", false /*default*/ ) ); + m_useFileThumbnails->setChecked( group.readBoolEntry( "UseFileThumbnails", true /*default*/ ) ); + KGlobal::config()->setReadDefaults(false); +} + +void KPreviewOptions::load() +{ + load(false); +} + +void KPreviewOptions::defaults() +{ + load(true); +} + +void KPreviewOptions::save() +{ + KConfigGroup group( KGlobal::config(), "PreviewSettings" ); + QPtrListIterator<QCheckListItem> it( m_items ); + for ( ; it.current() ; ++it ) { + QString protocol( it.current()->text() ); + group.writeEntry( protocol, it.current()->isOn(), true, true ); + } + // config key is in bytes, numinput is in MB + group.writeEntry( "MaximumSize", qRound( m_maxSize->value() *1024*1024 ), true, true ); + group.writeEntry( "BoostSize", m_boostSize->isChecked(), true, true ); + group.writeEntry( "UseFileThumbnails", m_useFileThumbnails->isChecked(), true, true ); + group.sync(); + + // Send signal to konqueror + // Warning. In case something is added/changed here, keep kfmclient in sync + QByteArray data; + if ( !kapp->dcopClient()->isAttached() ) + kapp->dcopClient()->attach(); + kapp->dcopClient()->send( "konqueror*", "KonquerorIface", "reparseConfiguration()", data ); +} + +void KPreviewOptions::changed() +{ + emit KCModule::changed(true); +} + +#include "previews.moc" |