kde-workspace/kcontrol/style/kcmstyle.cpp
Ivailo Monev b364dfb73e kcontrol: use KToolInvocation::startProgram() to execute programs
because the programs do not have valid service files (autostart)

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
2024-05-13 04:25:30 +03:00

681 lines
23 KiB
C++

/*
* KCMStyle
* Copyright (C) 2002 Karol Szwed <gallium@kde.org>
* Copyright (C) 2002 Daniel Molkentin <molkentin@kde.org>
* Copyright (C) 2007 Urs Wolfer <uwolfer @ kde.org>
* Copyright (C) 2009 by Davide Bettio <davide.bettio@kdemail.net>
* Portions Copyright (C) 2007 Paolo Capriotti <p.capriotti@gmail.com>
* Portions Copyright (C) 2007 Ivan Cukic <ivan.cukic+kde@gmail.com>
* Portions Copyright (C) 2008 by Petri Damsten <damu@iki.fi>
* Portions Copyright (C) 2000 TrollTech AS.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License version 2 as published by the Free Software Foundation.
*
* 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 "kcmstyle.h"
#ifdef Q_WS_X11
#include <config-X11.h>
#endif
#include "styleconfdialog.h"
#include "ui_stylepreview.h"
#include <kaboutdata.h>
#include <kapplication.h>
#include <kcombobox.h>
#include <kmessagebox.h>
#include <kstyle.h>
#include <kstandarddirs.h>
#include <KDebug>
#include <KColorScheme>
#include <KStandardDirs>
#ifdef Q_WS_X11
#include <kdecoration.h>
#endif
#include <kpluginfactory.h>
#include <kpluginloader.h>
#include <ktoolinvocation.h>
#include <QtCore/QFile>
#include <QtGui/QAbstractItemView>
#include <QtGui/QLabel>
#include <QtGui/QPainter>
#include <QtGui/QPixmapCache>
#include <QtGui/QStyleFactory>
#include <QtGui/QFormLayout>
#include <QtGui/QStandardItemModel>
#include <QtGui/QStyle>
#include <QtDBus/QDBusMessage>
K_PLUGIN_FACTORY(KCMStyleFactory, registerPlugin<KCMStyle>();)
K_EXPORT_PLUGIN(KCMStyleFactory("kcmstyle"))
class StylePreview : public QWidget, public Ui::StylePreview
{
public:
StylePreview(QWidget *parent = 0)
: QWidget(parent)
{
setupUi(this);
// Ensure that the user can't toy with the child widgets.
// Method borrowed from Qt's qtconfig.
QList<QWidget*> widgets = findChildren<QWidget*>();
foreach (QWidget* widget, widgets)
{
widget->installEventFilter(this);
widget->setFocusPolicy(Qt::NoFocus);
}
}
bool eventFilter( QObject* /* obj */, QEvent* ev )
{
switch( ev->type() )
{
case QEvent::MouseButtonPress:
case QEvent::MouseButtonRelease:
case QEvent::MouseButtonDblClick:
case QEvent::MouseMove:
case QEvent::KeyPress:
case QEvent::KeyRelease:
case QEvent::Enter:
case QEvent::Leave:
case QEvent::Wheel:
case QEvent::ContextMenu:
return true; // ignore
default:
break;
}
return false;
}
};
KCMStyle::KCMStyle( QWidget* parent, const QVariantList& )
: KCModule( KCMStyleFactory::componentData(), parent ), appliedStyle(NULL)
{
setQuickHelp( i18n("<h1>Style</h1>"
"This module allows you to modify the visual appearance "
"of user interface elements, such as the widget style "
"and effects."));
m_bStyleDirty= false;
m_bToolbarDirty = false;
KGlobal::dirs()->addResourceType("themes", "data", "kstyle/themes");
KAboutData *about =
new KAboutData( I18N_NOOP("kcmstyle"), 0,
ki18n("KDE Style Module"),
0, KLocalizedString(), KAboutData::License_GPL,
ki18n("(c) 2002 Karol Szwed, Daniel Molkentin"));
about->addAuthor(ki18n("Karol Szwed"), KLocalizedString(), "gallium@kde.org");
about->addAuthor(ki18n("Daniel Molkentin"), KLocalizedString(), "molkentin@kde.org");
about->addAuthor(ki18n("Ralf Nolden"), KLocalizedString(), "nolden@kde.org");
setAboutData( about );
// Setup pages and mainLayout
mainLayout = new QVBoxLayout( this );
mainLayout->setMargin(0);
tabWidget = new QTabWidget( this );
mainLayout->addWidget( tabWidget );
// Add Page1 (Applications Style)
// -----------------
//gbWidgetStyle = new QGroupBox( i18n("Widget Style"), page1 );
page1 = new QWidget;
page1Layout = new QVBoxLayout( page1 );
QWidget* gbWidgetStyle = new QWidget( page1 );
QVBoxLayout *widgetLayout = new QVBoxLayout(gbWidgetStyle);
gbWidgetStyleLayout = new QVBoxLayout;
widgetLayout->addLayout( gbWidgetStyleLayout );
gbWidgetStyleLayout->setAlignment( Qt::AlignTop );
hbLayout = new QHBoxLayout( );
hbLayout->setObjectName( "hbLayout" );
QLabel* label=new QLabel(i18n("Widget style:"),this);
hbLayout->addWidget( label );
cbStyle = new KComboBox( gbWidgetStyle );
cbStyle->setObjectName( "cbStyle" );
cbStyle->setEditable( false );
hbLayout->addWidget( cbStyle );
hbLayout->setStretchFactor( cbStyle, 1 );
label->setBuddy(cbStyle);
pbConfigStyle = new QPushButton( i18n("Con&figure..."), gbWidgetStyle );
pbConfigStyle->setEnabled( false );
hbLayout->addWidget( pbConfigStyle );
gbWidgetStyleLayout->addLayout( hbLayout );
lblStyleDesc = new QLabel( gbWidgetStyle );
gbWidgetStyleLayout->addWidget( lblStyleDesc );
QGroupBox *gbPreview = new QGroupBox( i18n( "Preview" ), page1 );
QVBoxLayout *previewLayout = new QVBoxLayout(gbPreview);
previewLayout->setMargin( 0 );
stylePreview = new StylePreview( gbPreview );
gbPreview->layout()->addWidget( stylePreview );
page1Layout->addWidget( gbWidgetStyle );
page1Layout->addWidget( gbPreview );
page1Layout->addStretch();
connect( cbStyle, SIGNAL(activated(int)), this, SLOT(styleChanged()) );
connect( cbStyle, SIGNAL(activated(int)), this, SLOT(updateConfigButton()));
connect( pbConfigStyle, SIGNAL(clicked()), this, SLOT(styleSpecificConfig()));
// Add Page2 (Effects)
// -------------------
page2 = new QWidget;
fineTuningUi.setupUi(page2);
fineTuningUi.comboGraphicEffectsLevel->setObjectName( "cbGraphicEffectsLevel" );
fineTuningUi.comboGraphicEffectsLevel->setEditable( false );
fineTuningUi.comboGraphicEffectsLevel->addItem(i18n("Low display resolution and Low CPU"), KGlobalSettings::NoEffects);
fineTuningUi.comboGraphicEffectsLevel->addItem(i18n("Low display resolution and High CPU"), KGlobalSettings::SimpleAnimationEffects);
fineTuningUi.comboGraphicEffectsLevel->addItem(i18n("High display resolution and High CPU"), static_cast<int>(KGlobalSettings::SimpleAnimationEffects | KGlobalSettings::ComplexAnimationEffects));
connect(cbStyle, SIGNAL(activated(int)), this, SLOT(setStyleDirty()));
connect(fineTuningUi.cbIconsOnButtons, SIGNAL(toggled(bool)), this, SLOT(setToolbarDirty()));
connect(fineTuningUi.cbIconsInMenus, SIGNAL(toggled(bool)), this, SLOT(setToolbarDirty()));
connect(fineTuningUi.comboGraphicEffectsLevel, SIGNAL(activated(int)), this, SLOT(setStyleDirty()));
connect(fineTuningUi.comboToolbarIcons, SIGNAL(activated(int)), this, SLOT(setToolbarDirty()));
connect(fineTuningUi.comboSecondaryToolbarIcons, SIGNAL(activated(int)), this, SLOT(setToolbarDirty()));
// Page1
cbStyle->setWhatsThis( i18n("Here you can choose from a list of"
" predefined widget styles (e.g. the way buttons are drawn) which"
" may or may not be combined with a theme (additional information"
" like a marble texture or a gradient).") );
stylePreview->setWhatsThis( i18n("This area shows a preview of the currently selected style "
"without having to apply it to the whole desktop.") );
// Page2
page2->setWhatsThis( i18n("This page allows you to choose details about the widget style options") );
fineTuningUi.comboToolbarIcons->setWhatsThis( i18n( "<p><b>No Text:</b> Shows only icons on toolbar buttons. "
"Best option for low resolutions.</p>"
"<p><b>Text Only: </b>Shows only text on toolbar buttons.</p>"
"<p><b>Text Beside Icons: </b> Shows icons and text on toolbar buttons. "
"Text is aligned beside the icon.</p>"
"<b>Text Below Icons: </b> Shows icons and text on toolbar buttons. "
"Text is aligned below the icon.") );
fineTuningUi.cbIconsOnButtons->setWhatsThis( i18n( "If you enable this option, KDE Applications will "
"show small icons alongside some important buttons.") );
fineTuningUi.cbIconsInMenus->setWhatsThis( i18n( "If you enable this option, KDE Applications will "
"show small icons alongside most menu items.") );
fineTuningUi.comboGraphicEffectsLevel->setWhatsThis( i18n( "If you enable this option, KDE Applications will "
"run internal animations.") );
// Insert the pages into the tabWidget
tabWidget->addTab(page1, i18nc("@title:tab", "&Applications"));
tabWidget->addTab(page2, i18nc("@title:tab", "&Fine Tuning"));
}
KCMStyle::~KCMStyle()
{
qDeleteAll(styleEntries);
delete appliedStyle;
}
void KCMStyle::updateConfigButton()
{
if (!styleEntries[currentStyle()] || styleEntries[currentStyle()]->configPage.isEmpty()) {
pbConfigStyle->setEnabled(false);
return;
}
// We don't check whether it's loadable here -
// lets us report an error and not waste time
// loading things if the user doesn't click the button
pbConfigStyle->setEnabled( true );
}
void KCMStyle::styleSpecificConfig()
{
QString libname = styleEntries[currentStyle()]->configPage;
#warning port loader to KPluginLoader
QLibrary library(libname); // , KCMStyleFactory::componentData());
if (!library.load()) {
KMessageBox::detailedError(this,
i18n("There was an error loading the configuration dialog for this style."),
library.errorString(),
i18n("Unable to Load Dialog"));
return;
}
void *allocPtr = library.resolve("allocate_kstyle_config");
if (!allocPtr)
{
KMessageBox::detailedError(this,
i18n("There was an error loading the configuration dialog for this style."),
library.errorString(),
i18n("Unable to Load Dialog"));
return;
}
//Create the container dialog
StyleConfigDialog* dial = new StyleConfigDialog(this, styleEntries[currentStyle()]->name);
typedef QWidget*(* factoryRoutine)( QWidget* parent );
//Get the factory, and make the widget.
factoryRoutine factory = (factoryRoutine)(allocPtr); //Grmbl. So here I am on my
//"never use C casts" moralizing streak, and I find that one can't go void* -> function ptr
//even with a reinterpret_cast.
QWidget* pluginConfig = factory( dial );
//Insert it in...
dial->setMainWidget( pluginConfig );
//..and connect it to the wrapper
connect(pluginConfig, SIGNAL(changed(bool)), dial, SLOT(setDirty(bool)));
connect(dial, SIGNAL(defaults()), pluginConfig, SLOT(defaults()));
connect(dial, SIGNAL(save()), pluginConfig, SLOT(save()));
if (dial->exec() == QDialog::Accepted && dial->isDirty() ) {
// Force re-rendering of the preview, to apply settings
switchStyle(currentStyle(), true);
//For now, ask all KDE apps to recreate their styles to apply the setitngs
KGlobalSettings::self()->emitChange(KGlobalSettings::StyleChanged);
// We call setStyleDirty here to make sure we force style re-creation
setStyleDirty();
}
delete dial;
}
void KCMStyle::changeEvent( QEvent *event )
{
KCModule::changeEvent( event );
if ( event->type() == QEvent::PaletteChange ) {
// Force re-rendering of the preview, to apply new palette
switchStyle(currentStyle(), true);
}
}
void KCMStyle::load()
{
KConfig config( "kdeglobals", KConfig::FullConfig );
loadStyle( config );
loadEffects( config );
m_bStyleDirty= false;
m_bToolbarDirty = false;
//Enable/disable the button for the initial style
updateConfigButton();
emit changed( false );
}
void KCMStyle::save()
{
// Don't do anything if we don't need to.
if ( !(m_bStyleDirty | m_bToolbarDirty ) )
return;
const bool showMenuIcons = !QApplication::testAttribute(Qt::AA_DontShowIconsInMenus);
if (fineTuningUi.cbIconsInMenus->isChecked() != showMenuIcons) {
KMessageBox::information(this,
i18n("<p>Changes to the visibility of menu icons will only affect newly started applications.</p>"),
i18nc("@title:window", "Menu Icons Changed"), "MenuIconsChanged");
}
// Save effects.
KConfig _config("kdeglobals", KConfig::NoGlobals);
KConfigGroup config(&_config, "KDE");
// Effects page
config.writeEntry( "ShowIconsOnPushButtons", fineTuningUi.cbIconsOnButtons->isChecked());
config.writeEntry( "ShowIconsInMenuItems", fineTuningUi.cbIconsInMenus->isChecked());
KConfigGroup g( &_config, "KDE-Global GUI Settings" );
g.writeEntry( "GraphicEffectsLevel", fineTuningUi.comboGraphicEffectsLevel->itemData(fineTuningUi.comboGraphicEffectsLevel->currentIndex()));
KConfigGroup generalGroup(&_config, "General");
generalGroup.writeEntry("widgetStyle", currentStyle());
KConfigGroup toolbarStyleGroup(&_config, "Toolbar style");
toolbarStyleGroup.writeEntry("ToolButtonStyle",
toolbarButtonText(fineTuningUi.comboToolbarIcons->currentIndex()));
toolbarStyleGroup.writeEntry("ToolButtonStyleOtherToolbars",
toolbarButtonText(fineTuningUi.comboSecondaryToolbarIcons->currentIndex()));
_config.sync();
// Now allow KDE apps to reconfigure themselves.
if ( m_bStyleDirty)
KGlobalSettings::self()->emitChange(KGlobalSettings::StyleChanged);
if ( m_bToolbarDirty ) {
KGlobalSettings::self()->emitChange(KGlobalSettings::ToolbarStyleChanged);
#ifdef Q_WS_X11
// Send signal to all kwin instances
QDBusMessage message =
QDBusMessage::createSignal("/KWin", "org.kde.KWin", "reloadConfig");
QDBusConnection::sessionBus().send(message);
#endif
}
// Export the changes we made to qtrc, and update all qt-only
// applications on the fly, ensuring that we still follow the user's
// export fonts/colors settings.
if (m_bStyleDirty | m_bToolbarDirty) // Export only if necessary
{
KToolInvocation::self()->startProgram("krdb");
}
// Clean up
m_bStyleDirty = false;
m_bToolbarDirty = false;
emit changed( false );
}
bool KCMStyle::findStyle( const QString& str, int& combobox_item )
{
StyleEntry* se = styleEntries[str.toLower()];
QString name = se ? se->name : str;
combobox_item = 0;
//look up name
for( int i = 0; i < cbStyle->count(); i++ )
{
if ( cbStyle->itemText(i) == name )
{
combobox_item = i;
return true;
}
}
return false;
}
void KCMStyle::defaults()
{
// Select default style
int item = 0;
bool found;
found = findStyle( KStyle::defaultStyle(), item );
if (!found)
found = findStyle( "oxygen", item );
if (!found)
found = findStyle( "cleanlooks", item );
if (!found)
found = findStyle( "windows", item );
cbStyle->setCurrentIndex( item );
m_bStyleDirty = true;
switchStyle( currentStyle() ); // make resets visible
// Effects
fineTuningUi.comboToolbarIcons->setCurrentIndex(toolbarButtonIndex("TextBesideIcon"));
fineTuningUi.comboSecondaryToolbarIcons->setCurrentIndex(toolbarButtonIndex("TextBesideIcon"));
fineTuningUi.cbIconsOnButtons->setChecked(true);
fineTuningUi.cbIconsInMenus->setChecked(true);
fineTuningUi.comboGraphicEffectsLevel->setCurrentIndex(fineTuningUi.comboGraphicEffectsLevel->findData(static_cast<int>(KGlobalSettings::graphicEffectsLevelDefault())));
emit changed(true);
}
void KCMStyle::setToolbarDirty()
{
m_bToolbarDirty = true;
emit changed(true);
}
void KCMStyle::setStyleDirty()
{
m_bStyleDirty = true;
emit changed(true);
}
// ----------------------------------------------------------------
// All the Style Switching / Preview stuff
// ----------------------------------------------------------------
void KCMStyle::loadStyle( KConfig& config )
{
cbStyle->clear();
// Create a dictionary of WidgetStyle to Name and Desc. mappings,
// as well as the config page info
qDeleteAll(styleEntries);
styleEntries.clear();
QString strWidgetStyle;
QStringList list = KGlobal::dirs()->findAllResources("themes", "*.themerc",
KStandardDirs::Recursive |
KStandardDirs::NoDuplicates);
for (QStringList::iterator it = list.begin(); it != list.end(); ++it)
{
KConfig config( *it, KConfig::SimpleConfig);
if ( !(config.hasGroup("KDE") && config.hasGroup("Misc")) )
continue;
KConfigGroup configGroup = config.group("KDE");
strWidgetStyle = configGroup.readEntry("WidgetStyle");
if (strWidgetStyle.isNull())
continue;
// We have a widgetstyle, so lets read the i18n entries for it...
StyleEntry* entry = new StyleEntry;
configGroup = config.group("Misc");
entry->name = configGroup.readEntry("Name");
entry->desc = configGroup.readEntry("Comment", i18n("No description available."));
entry->configPage = configGroup.readEntry("ConfigPage", QString());
// Insert the entry into our dictionary.
styleEntries.insert(strWidgetStyle.toLower(), entry);
}
// Obtain all style names
QStringList allStyles = QStyleFactory::keys();
// Get translated names
QStringList styles;
StyleEntry* entry;
for (QStringList::iterator it = allStyles.begin(); it != allStyles.end(); ++it)
{
QString id = (*it).toLower();
// Find the entry.
if ( (entry = styleEntries[id]) != 0 )
{
styles += entry->name;
nameToStyleKey[entry->name] = id;
}
else
{
styles += (*it); //Fall back to the key (but in original case)
nameToStyleKey[*it] = id;
}
}
// Sort the style list, and add it to the combobox
styles.sort();
cbStyle->addItems( styles );
// Find out which style is currently being used
KConfigGroup configGroup = config.group( "General" );
QString defaultStyle = KStyle::defaultStyle();
QString cfgStyle = configGroup.readEntry( "widgetStyle", defaultStyle );
// Select the current style
// Do not use cbStyle->listBox() as this may be NULL for some styles when
// they use QPopupMenus for the drop-down list!
// ##### Since Trolltech likes to seemingly copy & paste code,
// QStringList::findItem() doesn't have a Qt::StringComparisonMode field.
// We roll our own (yuck)
cfgStyle = cfgStyle.toLower();
int item = 0;
for( int i = 0; i < cbStyle->count(); i++ )
{
QString id = nameToStyleKey[cbStyle->itemText(i)];
item = i;
if ( id == cfgStyle ) // ExactMatch
break;
else if ( id.contains( cfgStyle ) )
break;
else if ( id.contains( QApplication::style()->metaObject()->className() ) )
break;
item = 0;
}
cbStyle->setCurrentIndex( item );
m_bStyleDirty = false;
switchStyle( currentStyle() ); // make resets visible
}
QString KCMStyle::currentStyle()
{
return nameToStyleKey[cbStyle->currentText()];
}
void KCMStyle::styleChanged()
{
switchStyle( currentStyle() );
}
void KCMStyle::switchStyle(const QString& styleName, bool force)
{
// Don't flicker the preview if the same style is chosen in the cb
if (!force && appliedStyle && appliedStyle->objectName() == styleName)
return;
// Create an instance of the new style...
QStyle* style = QStyleFactory::create(styleName);
if (!style)
return;
// Prevent Qt from wrongly caching radio button images
QPixmapCache::clear();
setStyleRecursive( stylePreview, style );
// this flickers, but reliably draws the widgets correctly.
stylePreview->resize( stylePreview->sizeHint() );
delete appliedStyle;
appliedStyle = style;
// Set the correct style description
StyleEntry* entry = styleEntries[ styleName ];
QString desc;
desc = i18n("Description: %1", entry ? entry->desc : i18n("No description available.") );
lblStyleDesc->setText( desc );
}
void KCMStyle::setStyleRecursive(QWidget* w, QStyle* s)
{
// Don't let broken styles kill the palette
// for other styles being previewed. (e.g SGI style)
w->setPalette(QPalette());
QPalette newPalette(KGlobalSettings::createApplicationPalette());
s->polish( newPalette );
w->setPalette(newPalette);
// Apply the new style.
w->setStyle(s);
// Recursively update all children.
const QObjectList children = w->children();
// Apply the style to each child widget.
foreach (QObject* child, children)
{
if (child->isWidgetType())
setStyleRecursive((QWidget *) child, s);
}
}
// ----------------------------------------------------------------
// All the Effects stuff
// ----------------------------------------------------------------
QString KCMStyle::toolbarButtonText(int index)
{
switch (index) {
case 1:
return "TextOnly";
case 2:
return "TextBesideIcon";
case 3:
return "TextUnderIcon";
default:
break;
}
return "NoText";
}
int KCMStyle::toolbarButtonIndex(const QString &text)
{
if (text == "TextOnly") {
return 1;
} else if (text == "TextBesideIcon") {
return 2;
} else if (text == "TextUnderIcon") {
return 3;
}
return 0;
}
void KCMStyle::loadEffects( KConfig& config )
{
// KDE's Part via KConfig
KConfigGroup configGroup = config.group("Toolbar style");
QString tbIcon = configGroup.readEntry("ToolButtonStyle", "TextBesideIcon");
fineTuningUi.comboToolbarIcons->setCurrentIndex(toolbarButtonIndex(tbIcon));
tbIcon = configGroup.readEntry("ToolButtonStyleOtherToolbars", "TextBesideIcon");
fineTuningUi.comboSecondaryToolbarIcons->setCurrentIndex(toolbarButtonIndex(tbIcon));
configGroup = config.group("KDE");
fineTuningUi.cbIconsOnButtons->setChecked(configGroup.readEntry("ShowIconsOnPushButtons", true));
fineTuningUi.cbIconsInMenus->setChecked(configGroup.readEntry("ShowIconsInMenuItems", true));
KConfigGroup graphicConfigGroup = config.group("KDE-Global GUI Settings");
fineTuningUi.comboGraphicEffectsLevel->setCurrentIndex(fineTuningUi.comboGraphicEffectsLevel->findData(graphicConfigGroup.readEntry("GraphicEffectsLevel", ((int) KGlobalSettings::graphicEffectsLevel()))));
m_bToolbarDirty = false;
}
#include "moc_kcmstyle.cpp"
// vim: set noet ts=4: