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kwin/kcmkwin/kwincompositing/main.cpp
Luboš Luňák 1d2c54edcc Support for proper effect reconfiguration instead of reloading them. 
Fixes e.g. the global animation combo not taking effect.


svn path=/trunk/KDE/kdebase/workspace/; revision=866903
2008-10-02 09:27:32 +00:00

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2007 Rivo Laks <rivolaks@hot.ee>
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, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "main.h"
#include "advanced.h"
#include "kwin_interface.h"
#include <kaboutdata.h>
#include <kconfig.h>
#include <kconfiggroup.h>
#include <kdebug.h>
#include <kmessagebox.h>
#include <ksettings/dispatcher.h>
#include <kpluginselector.h>
#include <kservicetypetrader.h>
#include <kplugininfo.h>
#include <kservice.h>
#include <QtDBus/QtDBus>
#include <QTimer>
#include <QLabel>
#include <KPluginFactory>
#include <KPluginLoader>
K_PLUGIN_FACTORY(KWinCompositingConfigFactory,
registerPlugin<KWin::KWinCompositingConfig>();
)
K_EXPORT_PLUGIN(KWinCompositingConfigFactory("kcmkwincompositing"))
namespace KWin
{
ConfirmDialog::ConfirmDialog() :
KTimerDialog(10000, KTimerDialog::CountDown, 0,
i18n("Confirm Desktop Effects Change"), KTimerDialog::Ok|KTimerDialog::Cancel,
KTimerDialog::Cancel)
{
setObjectName( "mainKTimerDialog" );
setButtonGuiItem( KDialog::Ok, KGuiItem( i18n( "&Accept Configuration" ), "dialog-ok" ));
setButtonGuiItem( KDialog::Cancel, KGuiItem( i18n( "&Return to Previous Configuration" ), "dialog-cancel" ));
QLabel *label = new QLabel( i18n( "Desktop effects settings have changed.\n"
"Do you want to keep the new settings?\n"
"They will be automatically reverted in 10 seconds." ), this );
label->setWordWrap( true );
setMainWidget( label );
}
KWinCompositingConfig::KWinCompositingConfig(QWidget *parent, const QVariantList &)
: KCModule( KWinCompositingConfigFactory::componentData(), parent),
mKWinConfig(KSharedConfig::openConfig("kwinrc")),
m_showConfirmDialog (false)
{
KGlobal::locale()->insertCatalog( "kwin_effects" );
ui.setupUi(this);
layout()->setMargin(0);
ui.tabWidget->setCurrentIndex(0);
ui.statusLabel->hide();
connect(ui.advancedOptions, SIGNAL(clicked()), this, SLOT(showAdvancedOptions()));
connect(ui.useCompositing, SIGNAL(toggled(bool)), this, SLOT(compositingEnabled(bool)));
connect(ui.tabWidget, SIGNAL(currentChanged(int)), this, SLOT(currentTabChanged(int)));
connect(ui.useCompositing, SIGNAL(toggled(bool)), this, SLOT(changed()));
connect(ui.effectWinManagement, SIGNAL(toggled(bool)), this, SLOT(changed()));
connect(ui.effectShadows, SIGNAL(toggled(bool)), this, SLOT(changed()));
connect(ui.effectAnimations, SIGNAL(toggled(bool)), this, SLOT(changed()));
connect(ui.effectSelector, SIGNAL(changed(bool)), this, SLOT(changed()));
connect(ui.effectSelector, SIGNAL(configCommitted(const QByteArray&)),
this, SLOT(reparseConfiguration(const QByteArray&)));
connect(ui.windowSwitchingCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(changed()));
connect(ui.desktopSwitchingCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(changed()));
connect(ui.animationSpeedCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(changed()));
// Open the temporary config file
// Temporary conf file is used to syncronize effect checkboxes with effect
// selector by loading/saving effects from/to temp config when active tab
// changes.
mTmpConfigFile.open();
mTmpConfig = KSharedConfig::openConfig(mTmpConfigFile.fileName());
if( CompositingPrefs::compositingPossible() )
{
// Driver-specific config detection
mDefaultPrefs.detect();
initEffectSelector();
// Load config
load();
}
else
{
ui.useCompositing->setEnabled(false);
ui.useCompositing->setChecked(false);
compositingEnabled(false);
QString text = i18n("Compositing is not supported on your system.");
text += "<br><br>";
text += CompositingPrefs::compositingNotPossibleReason();
ui.statusLabel->setText(text);
ui.statusLabel->show();
}
KAboutData *about = new KAboutData(I18N_NOOP("kcmkwincompositing"), 0,
ki18n("KWin Desktop Effects Configuration Module"),
0, KLocalizedString(), KAboutData::License_GPL, ki18n("(c) 2007 Rivo Laks"));
about->addAuthor(ki18n("Rivo Laks"), KLocalizedString(), "rivolaks@hot.ee");
setAboutData(about);
// search the effect names
KServiceTypeTrader* trader = KServiceTypeTrader::self();
KService::List services;
QString boxswitch, presentwindows, coverswitch, flipswitch, slide, cube;
// window switcher
services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_boxswitch'");
if( !services.isEmpty() )
boxswitch = services.first()->name();
services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_presentwindows'");
if( !services.isEmpty() )
presentwindows = services.first()->name();
services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_coverswitch'");
if( !services.isEmpty() )
coverswitch = services.first()->name();
services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_flipswitch'");
if( !services.isEmpty() )
flipswitch = services.first()->name();
// desktop switcher
services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_slide'");
if( !services.isEmpty() )
slide = services.first()->name();
services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_cube'");
if( !services.isEmpty() )
cube = services.first()->name();
// init the combo boxes
ui.windowSwitchingCombo->addItem(i18n("No Effect"));
ui.windowSwitchingCombo->addItem(boxswitch);
ui.windowSwitchingCombo->addItem(presentwindows);
ui.windowSwitchingCombo->addItem(coverswitch);
ui.windowSwitchingCombo->addItem(flipswitch);
ui.desktopSwitchingCombo->addItem(i18n("No Effect"));
ui.desktopSwitchingCombo->addItem(slide);
ui.desktopSwitchingCombo->addItem(cube);
}
KWinCompositingConfig::~KWinCompositingConfig()
{
}
void KWinCompositingConfig::reparseConfiguration(const QByteArray&conf)
{
KSettings::Dispatcher::reparseConfiguration(conf);
}
void KWinCompositingConfig::compositingEnabled(bool enabled)
{
ui.compositingOptionsContainer->setEnabled(enabled);
ui.tabWidget->setTabEnabled(1, enabled);
}
void KWinCompositingConfig::showAdvancedOptions()
{
KWinAdvancedCompositingOptions* dialog = new KWinAdvancedCompositingOptions(this, mKWinConfig, &mDefaultPrefs);
dialog->show();
}
void KWinCompositingConfig::showConfirmDialog()
{
bool revert = false;
// Feel free to extend this to support several kwin instances (multihead) if you
// think it makes sense.
OrgKdeKWinInterface kwin("org.kde.kwin", "/KWin", QDBusConnection::sessionBus());
if( !kwin.waitForCompositingSetup().value())
{
KMessageBox::sorry( this, i18n(
"Failed to activate desktop effects using the given "
"configuration options. Settings will be reverted to their previous values.\n\n"
"Check your X configuration. You may also consider changing advanced options, "
"especially changing the compositing type." ));
revert = true;
}
else
{
ConfirmDialog confirm;
if( !confirm.exec())
revert = true;
}
if( revert )
{
// Revert settings
KConfigGroup config(mKWinConfig, "Compositing");
config.deleteGroup();
QMap<QString, QString>::const_iterator it = mPreviousConfig.constBegin();
for(; it != mPreviousConfig.constEnd(); ++it) {
if (it.value().isEmpty())
continue;
config.writeEntry(it.key(), it.value());
}
// Sync with KWin and reload
configChanged();
load();
}
}
void KWinCompositingConfig::initEffectSelector()
{
// Find all .desktop files of the effects
KService::List offers = KServiceTypeTrader::self()->query("KWin/Effect");
QList<KPluginInfo> effectinfos = KPluginInfo::fromServices(offers);
// Add them to the plugin selector
ui.effectSelector->addPlugins(effectinfos, KPluginSelector::ReadConfigFile, i18n("Appearance"), "Appearance", mTmpConfig);
ui.effectSelector->addPlugins(effectinfos, KPluginSelector::ReadConfigFile, i18n("Accessibility"), "Accessibility", mTmpConfig);
ui.effectSelector->addPlugins(effectinfos, KPluginSelector::ReadConfigFile, i18n("Focus"), "Focus", mTmpConfig);
ui.effectSelector->addPlugins(effectinfos, KPluginSelector::ReadConfigFile, i18n("Window Management"), "Window Management", mTmpConfig);
ui.effectSelector->addPlugins(effectinfos, KPluginSelector::ReadConfigFile, i18n("Candy"), "Candy", mTmpConfig);
ui.effectSelector->addPlugins(effectinfos, KPluginSelector::ReadConfigFile, i18n("Demos"), "Demos", mTmpConfig);
ui.effectSelector->addPlugins(effectinfos, KPluginSelector::ReadConfigFile, i18n("Tests"), "Tests", mTmpConfig);
ui.effectSelector->addPlugins(effectinfos, KPluginSelector::ReadConfigFile, i18n("Tools"), "Tools", mTmpConfig);
}
void KWinCompositingConfig::currentTabChanged(int tab)
{
// block signals to don't emit the changed()-signal by just switching the current tab
blockSignals(true);
// write possible changes done to synchronize effect checkboxes and selector
if (tab == 0)
{
// General tab was activated
saveEffectsTab();
loadGeneralTab();
}
else
{
// Effects tab was activated
saveGeneralTab();
loadEffectsTab();
}
blockSignals(false);
}
void KWinCompositingConfig::loadGeneralTab()
{
KConfigGroup config(mKWinConfig, "Compositing");
ui.useCompositing->setChecked(config.readEntry("Enabled", mDefaultPrefs.enableCompositing()));
ui.animationSpeedCombo->setCurrentIndex(config.readEntry("AnimationSpeed", 3 ));
// Load effect settings
KConfigGroup effectconfig(mTmpConfig, "Plugins");
#define LOAD_EFFECT_CONFIG(effectname) effectconfig.readEntry("kwin4_effect_" effectname "Enabled", true)
int winManagementEnabled = LOAD_EFFECT_CONFIG("presentwindows")
+ LOAD_EFFECT_CONFIG("desktopgrid")
+ LOAD_EFFECT_CONFIG("dialogparent");
if (winManagementEnabled > 0 && winManagementEnabled < 3) {
ui.effectWinManagement->setTristate(true);
ui.effectWinManagement->setCheckState(Qt::PartiallyChecked);
}
else
ui.effectWinManagement->setChecked(winManagementEnabled);
ui.effectShadows->setChecked(LOAD_EFFECT_CONFIG("shadow"));
ui.effectAnimations->setChecked(LOAD_EFFECT_CONFIG("minimizeanimation"));
#undef LOAD_EFFECT_CONFIG
// window switching
if( effectEnabled( "boxswitch", effectconfig ))
ui.windowSwitchingCombo->setCurrentIndex( 1 );
if( effectEnabled( "coverswitch", effectconfig ))
ui.windowSwitchingCombo->setCurrentIndex( 3 );
if( effectEnabled( "flipswitch", effectconfig ))
ui.windowSwitchingCombo->setCurrentIndex( 4 );
KConfigGroup presentwindowsconfig(mKWinConfig, "Effect-PresentWindows");
if( effectEnabled( "presentwindows", effectconfig ) && presentwindowsconfig.readEntry("TabBox", false) )
ui.windowSwitchingCombo->setCurrentIndex( 2 );
// desktop switching
if( effectEnabled( "slide", effectconfig ))
ui.desktopSwitchingCombo->setCurrentIndex( 1 );
KConfigGroup cubeconfig(mKWinConfig, "Effect-Cube");
if( effectEnabled( "cube", effectconfig ) && cubeconfig.readEntry("AnimateDesktopChange", false))
ui.desktopSwitchingCombo->setCurrentIndex( 2 );
}
bool KWinCompositingConfig::effectEnabled( const QString& effect, const KConfigGroup& cfg ) const
{
KService::List services = KServiceTypeTrader::self()->query(
"KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_" + effect + "'");
if( services.isEmpty())
return false;
QVariant v = services.first()->property("X-KDE-PluginInfo-EnabledByDefault");
return cfg.readEntry("kwin4_effect_" + effect + "Enabled", v.toBool());
}
void KWinCompositingConfig::loadEffectsTab()
{
ui.effectSelector->load();
}
void KWinCompositingConfig::load()
{
mKWinConfig->reparseConfiguration();
// Copy Plugins group to temp config file
QMap<QString, QString> entries = mKWinConfig->entryMap("Plugins");
QMap<QString, QString>::const_iterator it = entries.constBegin();
KConfigGroup tmpconfig(mTmpConfig, "Plugins");
tmpconfig.deleteGroup();
for(; it != entries.constEnd(); ++it)
{
tmpconfig.writeEntry(it.key(), it.value());
}
loadGeneralTab();
loadEffectsTab();
emit changed( false );
}
void KWinCompositingConfig::saveGeneralTab()
{
KConfigGroup config(mKWinConfig, "Compositing");
// Save current config. We'll use this for restoring in case something
// goes wrong.
mPreviousConfig = config.entryMap();
// Check if any critical settings that need confirmation have changed
if(ui.useCompositing->isChecked()
&& ui.useCompositing->isChecked() != config.readEntry("Enabled", mDefaultPrefs.enableCompositing()))
{
m_showConfirmDialog = true;
}
config.writeEntry("Enabled", ui.useCompositing->isChecked());
config.writeEntry("AnimationSpeed", ui.animationSpeedCombo->currentIndex());
// Save effects
KConfigGroup effectconfig(mTmpConfig, "Plugins");
#define WRITE_EFFECT_CONFIG(effectname, widget) effectconfig.writeEntry("kwin4_effect_" effectname "Enabled", widget->isChecked())
if (ui.effectWinManagement->checkState() != Qt::PartiallyChecked) {
WRITE_EFFECT_CONFIG("presentwindows", ui.effectWinManagement);
WRITE_EFFECT_CONFIG("desktopgrid", ui.effectWinManagement);
WRITE_EFFECT_CONFIG("dialogparent", ui.effectWinManagement);
}
WRITE_EFFECT_CONFIG("shadow", ui.effectShadows);
// TODO: maybe also do some effect-specific configuration here, e.g.
// enable/disable desktopgrid's animation according to this setting
WRITE_EFFECT_CONFIG("minimizeanimation", ui.effectAnimations);
#undef WRITE_EFFECT_CONFIG
int windowSwitcher = ui.windowSwitchingCombo->currentIndex();
bool presentWindowSwitching = false;
switch( windowSwitcher )
{
case 0:
// no effect
effectconfig.writeEntry("kwin4_effect_boxswitchEnabled", false);
effectconfig.writeEntry("kwin4_effect_coverswitchEnabled", false);
effectconfig.writeEntry("kwin4_effect_flipswitchEnabled", false);
break;
case 1:
// box switch
effectconfig.writeEntry("kwin4_effect_boxswitchEnabled", true);
effectconfig.writeEntry("kwin4_effect_coverswitchEnabled", false);
effectconfig.writeEntry("kwin4_effect_flipswitchEnabled", false);
break;
case 2:
// present windows
presentWindowSwitching = true;
effectconfig.writeEntry("kwin4_effect_presentwindowsEnabled", true);
effectconfig.writeEntry("kwin4_effect_boxswitchEnabled", false);
effectconfig.writeEntry("kwin4_effect_coverswitchEnabled", false);
effectconfig.writeEntry("kwin4_effect_flipswitchEnabled", false);
break;
case 3:
// coverswitch
effectconfig.writeEntry("kwin4_effect_boxswitchEnabled", false);
effectconfig.writeEntry("kwin4_effect_coverswitchEnabled", true);
effectconfig.writeEntry("kwin4_effect_flipswitchEnabled", false);
break;
case 4:
// flipswitch
effectconfig.writeEntry("kwin4_effect_boxswitchEnabled", false);
effectconfig.writeEntry("kwin4_effect_coverswitchEnabled", false);
effectconfig.writeEntry("kwin4_effect_flipswitchEnabled", true);
break;
}
KConfigGroup presentwindowsconfig(mKWinConfig, "Effect-PresentWindows");
presentwindowsconfig.writeEntry("TabBox", presentWindowSwitching);
int desktopSwitcher = ui.desktopSwitchingCombo->currentIndex();
bool cubeDesktopSwitching = false;
switch( desktopSwitcher )
{
case 0:
// no effect
effectconfig.writeEntry("kwin4_effect_slideEnabled", false);
break;
case 1:
// slide
effectconfig.writeEntry("kwin4_effect_slideEnabled", true);
break;
case 2:
// cube
cubeDesktopSwitching = true;
effectconfig.writeEntry("kwin4_effect_slideEnabled", false);
effectconfig.writeEntry("kwin4_effect_cubeEnabled", true);
break;
}
KConfigGroup cubeconfig(mKWinConfig, "Effect-Cube");
cubeconfig.writeEntry("AnimateDesktopChange", cubeDesktopSwitching);
}
void KWinCompositingConfig::saveEffectsTab()
{
ui.effectSelector->save();
}
void KWinCompositingConfig::save()
{
// bah; tab content being dependent on the other is really bad; and
// deprecated in the HIG for a reason. Its confusing!
// Make sure we only call save on each tab once; as they are stateful due to the revert concept
if (ui.tabWidget->currentIndex() == 0) { // general was active
saveGeneralTab();
loadEffectsTab();
saveEffectsTab();
}
else { // effects tab was active
saveEffectsTab();
loadGeneralTab();
saveGeneralTab();
}
// Copy Plugins group from temp config to real config
QMap<QString, QString> entries = mTmpConfig->entryMap("Plugins");
QMap<QString, QString>::const_iterator it = entries.constBegin();
KConfigGroup realconfig(mKWinConfig, "Plugins");
realconfig.deleteGroup();
for(; it != entries.constEnd(); ++it)
{
realconfig.writeEntry(it.key(), it.value());
}
emit changed( false );
configChanged();
if(m_showConfirmDialog)
{
m_showConfirmDialog = false;
showConfirmDialog();
}
}
void KWinCompositingConfig::configChanged()
{
// Send signal to kwin
mKWinConfig->sync();
// Send signal to all kwin instances
QDBusMessage message = QDBusMessage::createSignal("/KWin", "org.kde.KWin", "reloadConfig");
QDBusConnection::sessionBus().send(message);
}
void KWinCompositingConfig::defaults()
{
ui.tabWidget->setCurrentIndex(0);
ui.useCompositing->setChecked(mDefaultPrefs.enableCompositing());
ui.effectWinManagement->setChecked(true);
ui.effectShadows->setChecked(true);
ui.effectAnimations->setChecked(true);
ui.windowSwitchingCombo->setCurrentIndex( 1 );
ui.desktopSwitchingCombo->setCurrentIndex( 1 );
ui.animationSpeedCombo->setCurrentIndex( 3 );
ui.effectSelector->defaults();
}
QString KWinCompositingConfig::quickHelp() const
{
return i18n("<h1>Desktop Effects</h1>");
}
} // namespace
#include "main.moc"
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