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Diffstat (limited to 'kcontrol/performance/konqueror.cpp')
| -rw-r--r-- | kcontrol/performance/konqueror.cpp | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/kcontrol/performance/konqueror.cpp b/kcontrol/performance/konqueror.cpp new file mode 100644 index 000000000..02dde4cce --- /dev/null +++ b/kcontrol/performance/konqueror.cpp @@ -0,0 +1,147 @@ +/* + * Copyright (c) 2003 Lubos Lunak <l.lunak@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; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "konqueror.h" + +#include <dcopref.h> +#include <kconfig.h> +#include <qwhatsthis.h> +#include <qradiobutton.h> +#include <qspinbox.h> +#include <qlabel.h> +#include <qcheckbox.h> +#include <klocale.h> + +namespace KCMPerformance +{ + +Konqueror::Konqueror( QWidget* parent_P ) + : Konqueror_ui( parent_P ) + { + QWhatsThis::add( rb_never_reuse, + i18n( "Disables the minimization of memory usage and allows you " + "to make each browsing activity independent from the others" )); + QWhatsThis::add( rb_file_browsing_reuse, + i18n( "With this option activated, only one instance of Konqueror " + "used for file browsing will exist in the memory of your computer " + "at any moment, " + "no matter how many file browsing windows you open, " + "thus reducing resource requirements." + "<p>Be aware that this also means that, if something goes wrong, " + "all your file browsing windows will be closed simultaneously" )); + QWhatsThis::add( rb_always_reuse, + i18n( "With this option activated, only one instance of Konqueror " + "will exist in the memory of your computer at any moment, " + "no matter how many browsing windows you open, " + "thus reducing resource requirements." + "<p>Be aware that this also means that, if something goes wrong, " + "all your browsing windows will be closed simultaneously." )); + connect( rb_never_reuse, SIGNAL( clicked()), SIGNAL( changed())); + connect( rb_file_browsing_reuse, SIGNAL( clicked()), SIGNAL( changed())); + connect( rb_always_reuse, SIGNAL( clicked()), SIGNAL( changed())); + rb_file_browsing_reuse->setChecked( true ); + + QString tmp = + i18n( "If non-zero, this option allows keeping Konqueror instances " + "in memory after all their windows have been closed, up to the " + "number specified in this option." + "<p>When a new Konqueror instance is needed, one of these preloaded " + "instances will be reused instead, improving responsiveness at " + "the expense of the memory required by the preloaded instances." ); + QWhatsThis::add( sb_preload_count, tmp ); + QWhatsThis::add( lb_preload_count, tmp ); + QWhatsThis::add( cb_preload_on_startup, + i18n( "If enabled, an instance of Konqueror will be preloaded after the ordinary KDE " + "startup sequence." + "<p>This will make the first Konqueror window open faster, but " + "at the expense of longer KDE startup times (but you will be able to work " + "while it is loading, so you may not even notice that it is taking longer)." )); + QWhatsThis::add( cb_always_have_preloaded, + i18n( "If enabled, KDE will always try to have one preloaded Konqueror instance ready; " + "preloading a new instance in the background whenever there is not one available, " + "so that windows will always open quickly." + "<p><b>Warning:</b> In some cases, it is actually possible that this will " + "reduce perceived performance." )); + connect( sb_preload_count, SIGNAL( valueChanged( int )), SLOT( preload_count_changed( int ))); + connect( sb_preload_count, SIGNAL( valueChanged( int )), SIGNAL( changed())); + connect( cb_preload_on_startup, SIGNAL( clicked()), SIGNAL( changed())); + connect( cb_always_have_preloaded, SIGNAL( clicked()), SIGNAL( changed())); + defaults(); + } + +void Konqueror::preload_count_changed( int count ) + { + cb_preload_on_startup->setEnabled( count >= 1 ); + // forcing preloading with count == 1 can often do more harm than good, because + // if there's one konqy preloaded, and the user requests "starting" new konqueror, + // the preloaded instance will be used, new one will be preloaded, and if the user soon + // "quits" konqueror, one of the instances will have to be terminated + cb_always_have_preloaded->setEnabled( count >= 2 ); + } + +void Konqueror::load( bool useDefaults ) + { + KConfig cfg( "konquerorrc", true ); + cfg.setReadDefaults( useDefaults ); + cfg.setGroup( "Reusing" ); + allowed_parts = cfg.readEntry( "SafeParts", "SAFE" ); + if( allowed_parts == "ALL" ) + rb_always_reuse->setChecked( true ); + else if( allowed_parts.isEmpty()) + rb_never_reuse->setChecked( true ); + else + rb_file_browsing_reuse->setChecked( true ); + sb_preload_count->setValue( cfg.readNumEntry( "MaxPreloadCount", 1 )); + cb_always_have_preloaded->setChecked( cfg.readBoolEntry( "AlwaysHavePreloaded", false )); + cb_preload_on_startup->setChecked( cfg.readBoolEntry( "PreloadOnStartup", false )); + } + +void Konqueror::save() + { + KConfig cfg( "konquerorrc" ); + cfg.setGroup( "Reusing" ); + if( rb_always_reuse->isChecked()) + allowed_parts = "ALL"; + else if( rb_never_reuse->isChecked()) + allowed_parts = ""; + else + { + if( allowed_parts.isEmpty() || allowed_parts == "ALL" ) + allowed_parts = "SAFE"; + // else - keep allowed_parts as read from the file, as the user may have modified the list there + } + cfg.writeEntry( "SafeParts", allowed_parts ); + int count = sb_preload_count->value(); + cfg.writeEntry( "MaxPreloadCount", count ); + cfg.writeEntry( "PreloadOnStartup", cb_preload_on_startup->isChecked() && count >= 1 ); + cfg.writeEntry( "AlwaysHavePreloaded", cb_always_have_preloaded->isChecked() && count >= 2 ); + cfg.sync(); + DCOPRef ref1( "konqueror*", "KonquerorIface" ); + ref1.send( "reparseConfiguration()" ); + DCOPRef ref2( "kded", "konqy_preloader" ); + ref2.send( "reconfigure()" ); + } + +void Konqueror::defaults() + { + load( true ); + } + +} // namespace + +#include "konqueror.moc" |