/* * Copyright 2005 by Aaron Seigo * Copyright 2007 by Riccardo Iaconelli * Copyright 2008 by Ménard Alexis * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Library General Public License as * published by the Free Software Foundation; either version 2, 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 Library 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 "applet.h" #include "private/applet_p.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "configxml.h" #include "containment.h" #include "corona.h" #include "dataenginemanager.h" #include "extender.h" #include "extenderitem.h" #include "package.h" #include "plasma.h" #include "scripting/appletscript.h" #include "svg.h" #include "panelsvg.h" #include "popupapplet.h" #include "theme.h" #include "view.h" #include "widgets/label.h" #include "widgets/pushbutton.h" #include "tooltipmanager.h" #include "wallpaper.h" #include "private/containment_p.h" #include "private/extenderapplet_p.h" #include "private/packages_p.h" #include "private/popupapplet_p.h" #include "private/toolbox_p.h" //#define DYNAMIC_SHADOWS namespace Plasma { Applet::Applet(QGraphicsItem *parent, const QString &serviceID, uint appletId) : QGraphicsWidget(parent), d(new AppletPrivate(KService::serviceByStorageId(serviceID), appletId, this)) { // WARNING: do not access config() OR globalConfig() in this method! // that requires a scene, which is not available at this point d->init(); } Applet::Applet(QObject *parentObject, const QVariantList &args) : QGraphicsWidget(0), d(new AppletPrivate( KService::serviceByStorageId(args.count() > 0 ? args[0].toString() : QString()), args.count() > 1 ? args[1].toInt() : 0, this)) { // now remove those first two items since those are managed by Applet and subclasses shouldn't // need to worry about them. yes, it violates the constness of this var, but it lets us add // or remove items later while applets can just pretend that their args always start at 0 QVariantList &mutableArgs = const_cast(args); if (!mutableArgs.isEmpty()) { mutableArgs.removeFirst(); if (!mutableArgs.isEmpty()) { mutableArgs.removeFirst(); } } setParent(parentObject); // WARNING: do not access config() OR globalConfig() in this method! // that requires a scene, which is not available at this point d->init(); // the brain damage seen in the initialization list is due to the // inflexibility of KService::createInstance } Applet::~Applet() { if (d->extender) { //This would probably be nicer if it was located in extender. But in it's dtor, this won't //work since when that get's called, the applet's config() isn't accessible anymore. (same //problem with calling saveState(). Doing this in saveState() might be a possibility, but //that would require every extender savestate implementation to call it's parent function, //which isn't very nice. foreach (ExtenderItem *item, d->extender->attachedItems()) { if (!item->isDetached() || item->autoExpireDelay()) { //destroy temporary extender items, or items that aren't detached, so their //configuration won't linger after a plasma restart. item->destroy(); } } d->extender->saveState(); } if (d->transient) { d->resetConfigurationObject(); } delete d; } PackageStructure::Ptr Applet::packageStructure() { if (!AppletPrivate::packageStructure) { AppletPrivate::packageStructure = new PlasmoidPackage(); } return AppletPrivate::packageStructure; } void Applet::init() { if (d->script && !d->script->init()) { setFailedToLaunch(true, i18n("Script initialization failed")); } } uint Applet::id() const { return d->appletId; } void Applet::save(KConfigGroup &g) const { KConfigGroup group = g; if (!group.isValid()) { group = *d->mainConfigGroup(); } kDebug() << "saving to" << group.name(); // we call the dptr member directly for locked since isImmutable() // also checks kiosk and parent containers group.writeEntry("immutability", (int)d->immutability); group.writeEntry("plugin", pluginName()); //FIXME: for containments, we need to have some special values here w/regards to // screen affinity (e.g. "bottom of screen 0") //kDebug() << pluginName() << "geometry is" << geometry() // << "pos is" << pos() << "bounding rect is" << boundingRect(); group.writeEntry("geometry", geometry()); group.writeEntry("zvalue", zValue()); if (transform() == QTransform()) { group.deleteEntry("transform"); } else { QList m; QTransform t = transform(); m << t.m11() << t.m12() << t.m13() << t.m21() << t.m22() << t.m23() << t.m31() << t.m32() << t.m33(); group.writeEntry("transform", m); //group.writeEntry("transform", transformToString(transform())); } KConfigGroup appletConfigGroup(&group, "Configuration"); //FIXME: we need a global save state too saveState(appletConfigGroup); if (d->activationAction) { KConfigGroup shortcutConfig(&group, "Shortcuts"); shortcutConfig.writeEntry("global", d->activationAction->globalShortcut().toString()); } } void Applet::restore(KConfigGroup &group) { QList m = group.readEntry("transform", QList()); if (m.count() == 9) { QTransform t(m[0], m[1], m[2], m[3], m[4], m[5], m[6], m[7], m[8]); setTransform(t); } qreal z = group.readEntry("zvalue", 0); if (z >= AppletPrivate::s_maxZValue) { AppletPrivate::s_maxZValue = z; } if (z > 0) { setZValue(z); } setImmutability((ImmutabilityType)group.readEntry("immutability", (int)Mutable)); QRectF geom = group.readEntry("geometry", QRectF()); if (geom.isValid()) { setGeometry(geom); } KConfigGroup shortcutConfig(&group, "Shortcuts"); QString shortcutText = shortcutConfig.readEntryUntranslated("global", QString()); if (!shortcutText.isEmpty()) { setGlobalShortcut(KShortcut(shortcutText)); kDebug() << "got global shortcut for" << name() << "of" << QKeySequence(shortcutText); kDebug() << "set to" << d->activationAction->objectName() << d->activationAction->globalShortcut().primary(); } // local shortcut, if any //TODO: implement; the shortcut will need to be registered with the containment /* shortcutText = shortcutConfig.readEntryUntranslated("local", QString()); if (!shortcutText.isEmpty()) { //TODO: implement; the shortcut } */ // start up is done, we can now go do a mod timer if (d->modificationsTimerId > 0) { killTimer(d->modificationsTimerId); } d->modificationsTimerId = 0; } void AppletPrivate::setFocus() { kDebug() << "setting focus"; q->setFocus(Qt::ShortcutFocusReason); } void Applet::setFailedToLaunch(bool failed, const QString &reason) { if (d->failed == failed) { return; } d->failed = failed; prepareGeometryChange(); qDeleteAll(QGraphicsItem::children()); setLayout(0); if (failed) { setBackgroundHints(d->backgroundHints|StandardBackground); QGraphicsLinearLayout *failureLayout = new QGraphicsLinearLayout(this); failureLayout->setContentsMargins(0, 0, 0, 0); Icon *failureIcon = new Icon(this); failureIcon->setIcon(KIcon("dialog-error")); failureLayout->addItem(failureIcon); Label *failureWidget = new Plasma::Label(this); failureWidget->setText(d->visibleFailureText(reason)); QLabel *label = failureWidget->nativeWidget(); label->setWordWrap(true); failureLayout->addItem(failureWidget); Plasma::ToolTipManager::self()->registerWidget(failureIcon); Plasma::ToolTipManager::Content data; data.mainText = i18n("Unable to load the widget"); data.subText = reason; data.image = KIcon("dialog-error").pixmap(IconSize(KIconLoader::Desktop)); Plasma::ToolTipManager::self()->setContent(failureIcon, data); setLayout(failureLayout); resize(300, 250); setMinimumSize(failureLayout->minimumSize()); d->background->resizePanel(geometry().size()); } update(); } void Applet::saveState(KConfigGroup &group) const { if (group.config()->name() != config().config()->name()) { // we're being saved to a different file! // let's just copy the current values in our configuration over KConfigGroup c = config(); c.copyTo(&group); } } KConfigGroup Applet::config(const QString &group) const { KConfigGroup cg = config(); return KConfigGroup(&cg, group); } KConfigGroup Applet::config() const { if (d->isContainment) { return *(d->mainConfigGroup()); } return KConfigGroup(d->mainConfigGroup(), "Configuration"); } KConfigGroup Applet::globalConfig() const { KConfigGroup globalAppletConfig; const Containment *c = containment(); QString group = isContainment() ? "ContainmentGlobals" : "AppletGlobals"; if (c && c->corona()) { KSharedConfig::Ptr coronaConfig = c->corona()->config(); globalAppletConfig = KConfigGroup(coronaConfig, group); } else { globalAppletConfig = KConfigGroup(KGlobal::config(), group); } return KConfigGroup(&globalAppletConfig, d->globalName()); } void Applet::destroy() { if (immutability() != Mutable || d->transient) { return; //don't double delete } d->transient = true; if (isContainment()) { d->cleanUpAndDelete(); } else { connect(Animator::self(), SIGNAL(animationFinished(QGraphicsItem*,Plasma::Animator::Animation)), this, SLOT(appletAnimationComplete(QGraphicsItem*,Plasma::Animator::Animation))); Animator::self()->animateItem(this, Animator::DisappearAnimation); } } void AppletPrivate::appletAnimationComplete(QGraphicsItem *item, Plasma::Animator::Animation anim) { if (anim != Animator::DisappearAnimation || item != q) { return; //it's not our time yet } cleanUpAndDelete(); } void AppletPrivate::selectItemToDestroy() { //FIXME: this will not work nicely with multiple screens and being zoomed out! if (q->isContainment()) { QGraphicsView *view = q->view(); if (view && view->transform().isScaling() && q->scene()->focusItem() != q) { QGraphicsItem *focus = q->scene()->focusItem(); if (focus) { Containment *toDestroy = dynamic_cast(focus->topLevelItem()); if (toDestroy) { toDestroy->destroy(); return; } } } } q->destroy(); } void AppletPrivate::updateRect(const QRectF &rect) { q->update(rect); } void AppletPrivate::cleanUpAndDelete() { //kDebug() << "???????????????? DESTROYING APPLET" << name() << " ???????????????????????????"; QGraphicsWidget *parent = dynamic_cast(q->parentItem()); //it probably won't matter, but right now if there are applethandles, *they* are the parent. //not the containment. //is the applet in a containment and is the containment have a layout? //if yes, we remove the applet in the layout if (parent && parent->layout()) { QGraphicsLayout *l = parent->layout(); for (int i = 0; i < l->count(); ++i) { if (q == l->itemAt(i)) { l->removeAt(i); break; } } } if (configXml) { configXml->setDefaults(); } q->scene()->removeItem(q); q->deleteLater(); } ConfigXml *Applet::configScheme() const { return d->configXml; } DataEngine *Applet::dataEngine(const QString &name) const { int index = d->loadedEngines.indexOf(name); if (index != -1) { return DataEngineManager::self()->engine(name); } DataEngine *engine = DataEngineManager::self()->loadEngine(name); if (engine->isValid()) { d->loadedEngines.append(name); } return engine; } const Package *Applet::package() const { return d->package; } QGraphicsView *Applet::view() const { // It's assumed that we won't be visible on more than one view here. // Anything that actually needs view() should only really care about // one of them anyway though. if (!scene()) { return 0; } QGraphicsView *found = 0; QGraphicsView *possibleFind = 0; //kDebug() << "looking through" << scene()->views().count() << "views"; foreach (QGraphicsView *view, scene()->views()) { //kDebug() << " checking" << view << view->sceneRect() // << "against" << sceneBoundingRect() << scenePos(); if (view->sceneRect().intersects(sceneBoundingRect()) || view->sceneRect().contains(scenePos())) { //kDebug() << " found something!" << view->isActiveWindow(); if (view->isActiveWindow()) { found = view; } else { possibleFind = view; } } } return found ? found : possibleFind; } QRectF Applet::mapFromView(const QGraphicsView *view, const QRect &rect) const { // Why is this adjustment needed? Qt calculation error? return mapFromScene(view->mapToScene(rect)).boundingRect().adjusted(0, 0, 1, 1); } QRect Applet::mapToView(const QGraphicsView *view, const QRectF &rect) const { // Why is this adjustment needed? Qt calculation error? return view->mapFromScene(mapToScene(rect)).boundingRect().adjusted(0, 0, -1, -1); } QPoint Applet::popupPosition(const QSize &s) const { return Plasma::popupPosition(this, s); } void Applet::updateConstraints(Plasma::Constraints constraints) { d->scheduleConstraintsUpdate(constraints); } void Applet::constraintsEvent(Plasma::Constraints constraints) { //NOTE: do NOT put any code in here that reacts to constraints updates // as it will not get called for any applet that reimplements constraintsEvent // without calling the Applet:: version as well, which it shouldn't need to. // INSTEAD put such code into flushPendingConstraintsEvents Q_UNUSED(constraints) //kDebug() << constraints << "constraints are FormFactor: " << formFactor() // << ", Location: " << location(); if (d->script) { d->script->constraintsEvent(constraints); } } void Applet::initExtenderItem(ExtenderItem *item) { Q_UNUSED(item) item->destroy(); } Extender *Applet::extender() const { if (!d->extender) { new Extender(const_cast(this)); } return d->extender; } QString Applet::name() const { if (isContainment()) { if (!d->appletDescription.isValid()) { return i18n("Unknown Activity"); } const Containment *c = qobject_cast(this); if (c && !c->activity().isNull()) { return i18n("%1 Activity", c->activity()); } } else if (!d->appletDescription.isValid()) { return i18n("Unknown Widget"); } return d->appletDescription.name(); } QFont Applet::font() const { return QApplication::font(); } QString Applet::icon() const { if (!d->appletDescription.isValid()) { return QString(); } return d->appletDescription.icon(); } QString Applet::pluginName() const { if (!d->appletDescription.isValid()) { return QString(); } return d->appletDescription.pluginName(); } bool Applet::shouldConserveResources() const { return Solid::PowerManagement::appShouldConserveResources(); } QString Applet::category() const { if (!d->appletDescription.isValid()) { return i18n("Miscellaneous"); } return d->appletDescription.category(); } QString Applet::category(const KPluginInfo &applet) { return applet.property("X-KDE-PluginInfo-Category").toString(); } QString Applet::category(const QString &appletName) { if (appletName.isEmpty()) { return QString(); } QString constraint = QString("[X-KDE-PluginInfo-Name] == '%1'").arg(appletName); KService::List offers = KServiceTypeTrader::self()->query("Plasma/Applet", constraint); if (offers.isEmpty()) { return QString(); } return offers.first()->property("X-KDE-PluginInfo-Category").toString(); } ImmutabilityType Applet::immutability() const { //Returning the more strict immutability between the applet immutability and Corona one ImmutabilityType coronaImmutability = Mutable; if (dynamic_cast(scene())) { coronaImmutability = static_cast(scene())->immutability(); } if (coronaImmutability == SystemImmutable) { return SystemImmutable; } else if (coronaImmutability == UserImmutable && d->immutability != SystemImmutable) { return UserImmutable; } else { return d->immutability; } } void Applet::setImmutability(const ImmutabilityType immutable) { if (d->immutability == immutable) { return; } d->immutability = immutable; updateConstraints(ImmutableConstraint); } Applet::BackgroundHints Applet::backgroundHints() const { return d->backgroundHints; } void Applet::setBackgroundHints(const BackgroundHints hints) { d->backgroundHints = hints; //Draw the standard background? if ((hints & StandardBackground) || (hints & TranslucentBackground)) { if (!d->background) { d->background = new Plasma::PanelSvg(this); } if ((hints & TranslucentBackground) && Plasma::Theme::defaultTheme()->currentThemeHasImage("widgets/translucentbackground")) { d->background->setImagePath("widgets/translucentbackground"); } else { d->background->setImagePath("widgets/background"); } d->background->setEnabledBorders(Plasma::PanelSvg::AllBorders); qreal left, top, right, bottom; d->background->getMargins(left, top, right, bottom); setContentsMargins(left, right, top, bottom); QSizeF fitSize(left + right, top + bottom); if (minimumSize().expandedTo(fitSize) != minimumSize()) { setMinimumSize(minimumSize().expandedTo(fitSize)); } d->background->resizePanel(boundingRect().size()); } else if (d->background) { qreal left, top, right, bottom; d->background->getMargins(left, top, right, bottom); //Setting a minimum size of 0,0 would result in the panel to be only //on the first virtual desktop setMinimumSize(qMax(minimumSize().width() - left - right, qreal(1.0)), qMax(minimumSize().height() - top - bottom, qreal(1.0))); delete d->background; d->background = 0; setContentsMargins(0, 0, 0, 0); } } bool Applet::hasFailedToLaunch() const { return d->failed; } void Applet::paintWindowFrame(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) { Q_UNUSED(painter) Q_UNUSED(option) Q_UNUSED(widget) //Here come the code for the window frame //kDebug() << windowFrameGeometry(); //painter->drawRoundedRect(windowFrameGeometry(), 5, 5); } bool Applet::configurationRequired() const { return d->needsConfigOverlay != 0; } void Applet::setConfigurationRequired(bool needsConfig, const QString &reason) { if ((d->needsConfigOverlay != 0) == needsConfig) { return; } if (d->needsConfigOverlay) { QGraphicsWidget *w = d->needsConfigOverlay; d->needsConfigOverlay = 0; w->hide(); w->deleteLater(); return; } d->needsConfigOverlay = new AppletOverlayWidget(this); d->needsConfigOverlay->resize(contentsRect().size()); d->needsConfigOverlay->setPos(contentsRect().topLeft()); int zValue = 100; foreach (QGraphicsItem *child, QGraphicsItem::children()) { if (child->zValue() > zValue) { zValue = child->zValue() + 1; } } d->needsConfigOverlay->setZValue(zValue); qDeleteAll(d->needsConfigOverlay->QGraphicsItem::children()); QGraphicsGridLayout *configLayout = new QGraphicsGridLayout(d->needsConfigOverlay); configLayout->setContentsMargins(0, 0, 0, 0); // configLayout->addStretch(); configLayout->setColumnStretchFactor(0, 10); configLayout->setColumnStretchFactor(2, 10); configLayout->setRowStretchFactor(0, 10); configLayout->setRowStretchFactor(3, 10); int row = 1; if (!reason.isEmpty()) { Label *explanation = new Label(d->needsConfigOverlay); explanation->setText(reason); configLayout->addItem(explanation, row, 1); configLayout->setColumnStretchFactor(1, 10); ++row; //configLayout->setAlignment(explanation, Qt::AlignBottom | Qt::AlignCenter); } PushButton *configWidget = new PushButton(d->needsConfigOverlay); configWidget->setText(i18n("Configure...")); connect(configWidget, SIGNAL(clicked()), this, SLOT(showConfigurationInterface())); configLayout->addItem(configWidget, row, 1); //configLayout->setAlignment(configWidget, Qt::AlignTop | Qt::AlignCenter); //configLayout->addStretch(); d->needsConfigOverlay->show(); } void Applet::flushPendingConstraintsEvents() { if (d->pendingConstraints == NoConstraint) { return; } if (d->constraintsTimerId) { killTimer(d->constraintsTimerId); d->constraintsTimerId = 0; } //kDebug() << "fushing constraints: " << d->pendingConstraints << "!!!!!!!!!!!!!!!!!!!!!!!!!!!"; Plasma::Constraints c = d->pendingConstraints; d->pendingConstraints = NoConstraint; if (c & Plasma::StartupCompletedConstraint) { //common actions bool unlocked = immutability() == Mutable; //FIXME desktop containments can't be removed while in use. //it's kinda silly to have a keyboard shortcut for something that can only be used when the //shortcut isn't active. QAction *closeApplet = new QAction(this); closeApplet->setIcon(KIcon("edit-delete")); closeApplet->setEnabled(unlocked); closeApplet->setVisible(unlocked); closeApplet->setShortcutContext(Qt::WidgetShortcut); //don't clash with other views closeApplet->setText(i18n("Remove this %1", name())); if (isContainment()) { closeApplet->setShortcut(QKeySequence("ctrl+shift+r")); } else { closeApplet->setShortcut(QKeySequence("ctrl+r")); } connect(closeApplet, SIGNAL(triggered(bool)), this, SLOT(selectItemToDestroy())); d->actions.addAction("remove", closeApplet); } if (c & Plasma::ImmutableConstraint) { bool unlocked = immutability() == Mutable; QAction *action = d->actions.action("remove"); if (action) { action->setVisible(unlocked); action->setEnabled(unlocked); } if (!KAuthorized::authorize("PlasmaAllowConfigureWhenLocked")) { action = d->actions.action("configure"); if (action) { action->setVisible(unlocked); action->setEnabled(unlocked); } } } if (c & Plasma::SizeConstraint && d->needsConfigOverlay) { d->needsConfigOverlay->setGeometry(QRectF(QPointF(0, 0), geometry().size())); QGraphicsItem *button = 0; QList children = d->needsConfigOverlay->QGraphicsItem::children(); if (!children.isEmpty()) { button = children.first(); } if (button) { QSizeF s = button->boundingRect().size(); button->setPos(d->needsConfigOverlay->boundingRect().width() / 2 - s.width() / 2, d->needsConfigOverlay->boundingRect().height() / 2 - s.height() / 2); } } if (c & Plasma::FormFactorConstraint) { FormFactor f = formFactor(); if (!isContainment() && f != Vertical && f != Horizontal) { setBackgroundHints(d->backgroundHints | StandardBackground); } else if(d->backgroundHints & StandardBackground) { setBackgroundHints(d->backgroundHints ^ StandardBackground); } else if(d->backgroundHints & TranslucentBackground) { setBackgroundHints(d->backgroundHints ^ TranslucentBackground); } if (d->failed) { if (f == Vertical || f == Horizontal) { setMinimumSize(0, 0); QGraphicsLayoutItem *item = layout()->itemAt(1); layout()->removeAt(1); delete item; } } } //enforce square size in panels if ((c & Plasma::SizeConstraint || c & Plasma::FormFactorConstraint) && aspectRatioMode() == Plasma::Square) { if (formFactor() == Horizontal) { setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding)); } else if (formFactor() == Vertical) { setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed)); } updateGeometry(); } //enforce a constrained square size in panels if ((c & Plasma::SizeConstraint || c & Plasma::FormFactorConstraint) && aspectRatioMode() == Plasma::ConstrainedSquare) { if (formFactor() == Horizontal) { setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding)); } else if (formFactor() == Vertical) { setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed)); } updateGeometry(); } Containment* containment = qobject_cast(this); if (isContainment() && containment) { containment->d->containmentConstraintsEvent(c); } PopupApplet* popup = qobject_cast(this); if (popup) { popup->d->popupConstraintsEvent(c); } constraintsEvent(c); if (layout()) { layout()->updateGeometry(); } } int Applet::type() const { return Type; } QList Applet::contextualActions() { //kDebug() << "empty context actions"; return d->script ? d->script->contextualActions() : QList(); } QAction *Applet::action(QString name) const { return d->actions.action(name); } void Applet::addAction(QString name, QAction *action) { d->actions.addAction(name, action); } void Applet::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) { QPainter *p; //FIXME: we should probably set the pixmap to screenSize(), but that breaks stuff atm. QPixmap *pixmap = 0; if (d->ghost) { // The applet has to be displayed semi transparent. Create a pixmap and a painter on // that pixmap where the applet can draw on so we can draw the result transparently // at the end. kDebug() << "Painting ghosted..."; pixmap = new QPixmap(boundingRect().size().toSize()); pixmap->fill(Qt::transparent); p = new QPainter(); p->begin(pixmap); } else { p = painter; } p->save(); if (transform().isRotating()) { p->setRenderHint(QPainter::SmoothPixmapTransform); p->setRenderHint(QPainter::Antialiasing); } if (d->background && formFactor() != Plasma::Vertical && formFactor() != Plasma::Horizontal) { //kDebug() << "option rect is" << option->rect; d->background->paintPanel(p); } if (!d->failed) { qreal left, top, right, bottom; getContentsMargins(&left, &top, &right, &bottom); QRect contentsRect = QRectF(QPointF(0, 0), boundingRect().size()).adjusted(left, top, -right, -bottom).toRect(); if (widget && isContainment()) { // note that the widget we get is actually the viewport of the view, not the view itself View* v = qobject_cast(widget->parent()); if (!v || v->isWallpaperEnabled()) { Containment* c = qobject_cast(this); if (c && c->drawWallpaper() && c->wallpaper()) { Wallpaper *w = c->wallpaper(); if (!w->isInitialized()) { // delayed paper initialization KConfigGroup wallpaperConfig = c->config(); wallpaperConfig = KConfigGroup(&wallpaperConfig, "Wallpaper"); wallpaperConfig = KConfigGroup(&wallpaperConfig, w->pluginName()); w->restore(wallpaperConfig); } p->save(); c->wallpaper()->paint(p, option->exposedRect); p->restore(); } Containment::StyleOption coption(*option); coption.view = v; paintInterface(p, &coption, contentsRect); } p->restore(); return; } //kDebug() << "paint interface of" << (QObject*) this; paintInterface(p, option, contentsRect); } p->restore(); if (d->ghost) { // Lets display the pixmap that we've just drawn... transparently. p->setCompositionMode(QPainter::CompositionMode_DestinationIn); p->fillRect(pixmap->rect(), QColor(0, 0, 0, (0.3 * 255))); p->end(); delete p; painter->drawPixmap(0, 0, *pixmap); delete pixmap; } } void Applet::paintInterface(QPainter *painter, const QStyleOptionGraphicsItem *option, const QRect &contentsRect) { if (d->script) { d->script->paintInterface(painter, option, contentsRect); } else { //kDebug() << "Applet::paintInterface() default impl"; } } FormFactor Applet::formFactor() const { Containment *c = containment(); return c ? c->d->formFactor : Plasma::Planar; } Containment *Applet::containment() const { if (isContainment()) { Containment *c = dynamic_cast(const_cast(this)); if (c) { return c; } } QGraphicsItem *parent = parentItem(); Containment *c = 0; while (parent) { Containment *possibleC = dynamic_cast(parent); if (possibleC && possibleC->isContainment()) { c = possibleC; break; } parent = parent->parentItem(); } return c; } void Applet::setGlobalShortcut(const KShortcut &shortcut) { if (!d->activationAction) { d->activationAction = new KAction(this); d->activationAction->setText(i18n("Activate %1 Widget", name())); d->activationAction->setObjectName(QString("activate widget %1").arg(id())); // NO I18N connect(d->activationAction, SIGNAL(triggered()), this, SIGNAL(activate())); connect(this, SIGNAL(activate()), this, SLOT(setFocus())); QList widgets = d->actions.associatedWidgets(); foreach (QWidget *w, widgets) { w->addAction(d->activationAction); } } //kDebug() << "before" << shortcut.primary() << d->activationAction->globalShortcut().primary(); d->activationAction->setGlobalShortcut( shortcut, KAction::ShortcutTypes(KAction::ActiveShortcut | KAction::DefaultShortcut), KAction::NoAutoloading); //kDebug() << "after" << shortcut.primary() << d->activationAction->globalShortcut().primary(); } KShortcut Applet::globalShortcut() const { if (d->activationAction) { return d->activationAction->globalShortcut(); } return KShortcut(); } void Applet::addAssociatedWidget(QWidget *widget) { d->actions.addAssociatedWidget(widget); } void Applet::removeAssociatedWidget(QWidget *widget) { d->actions.removeAssociatedWidget(widget); } Location Applet::location() const { Containment *c = containment(); return c ? c->d->location : Plasma::Desktop; } Context *Applet::context() const { Containment *c = containment(); Q_ASSERT(c); return c->d->context(); } Plasma::AspectRatioMode Applet::aspectRatioMode() const { return d->aspectRatioMode; } void Applet::setAspectRatioMode(Plasma::AspectRatioMode mode) { d->aspectRatioMode = mode; } void Applet::registerAsDragHandle(QGraphicsItem *item) { if (!item) { return; } int index = d->registeredAsDragHandle.indexOf(item); if (index == -1) { d->registeredAsDragHandle.append(item); item->installSceneEventFilter(this); } } void Applet::unregisterAsDragHandle(QGraphicsItem *item) { if (!item) { return; } int index = d->registeredAsDragHandle.indexOf(item); if (index != -1) { d->registeredAsDragHandle.removeAt(index); item->removeSceneEventFilter(this); } } bool Applet::isRegisteredAsDragHandle(QGraphicsItem *item) { return (d->registeredAsDragHandle.indexOf(item) != -1); } bool Applet::hasConfigurationInterface() const { return d->hasConfigurationInterface; } void Applet::setHasConfigurationInterface(bool hasInterface) { if (d->hasConfigurationInterface == hasInterface) { return; } d->hasConfigurationInterface = hasInterface; //config action //TODO respect security when it's implemented (4.2) QAction *configAction = d->actions.action("configure"); if (hasInterface) { if (!configAction) { //should be always true configAction = new QAction(i18n("%1 Settings", name()), this); configAction->setIcon(KIcon("configure")); configAction->setShortcutContext(Qt::WidgetShortcut); //don't clash with other views if (isContainment()) { //kDebug() << "I am a containment"; configAction->setShortcut(QKeySequence("ctrl+shift+s")); } else { configAction->setShortcut(QKeySequence("ctrl+s")); } //TODO how can we handle configuration of the shortcut in a way that spans all applets? connect(configAction, SIGNAL(triggered(bool)), this, SLOT(showConfigurationInterface())); d->actions.addAction("configure", configAction); } } else { d->actions.removeAction(configAction); } } bool Applet::eventFilter(QObject *o, QEvent *e) { return QObject::eventFilter(o, e); } bool Applet::sceneEventFilter(QGraphicsItem *watched, QEvent *event) { switch (event->type()) { case QEvent::GraphicsSceneMouseMove: { // don't move when the containment is not mutable, // in the rare case the containment doesn't exists consider it as mutable if ((!containment() || containment()->immutability() == Mutable) && d->registeredAsDragHandle.contains(watched)) { mouseMoveEvent(static_cast(event)); return true; } break; } default: break; } return QGraphicsItem::sceneEventFilter(watched, event); } void Applet::mouseMoveEvent(QGraphicsSceneMouseEvent *event) { if (immutability() == Mutable && formFactor() == Plasma::Planar) { QGraphicsItem *parent = parentItem(); Plasma::Applet *applet = qgraphicsitem_cast(parent); if (applet && applet->isContainment()) { // our direct parent is a containment. just move ourselves. QPointF curPos = event->pos(); QPointF lastPos = event->lastPos(); QPointF delta = curPos - lastPos; moveBy(delta.x(), delta.y()); } else if (parent) { //don't move the icon as well because our parent //(usually an appletHandle) will do it for us //parent->moveBy(delta.x(),delta.y()); QPointF curPos = parent->transform().map(event->pos()); QPointF lastPos = parent->transform().map(event->lastPos()); QPointF delta = curPos - lastPos; parent->setPos(parent->pos() + delta); } } } void Applet::mousePressEvent(QGraphicsSceneMouseEvent *event) { setFocus(Qt::MouseFocusReason); QGraphicsWidget::mousePressEvent(event); } void Applet::focusInEvent(QFocusEvent *event) { if (!isContainment() && containment()) { //focusing an applet may trigger this event again, but we won't be here more than twice containment()->d->focusApplet(this); } QGraphicsWidget::focusInEvent(event); } void Applet::resizeEvent(QGraphicsSceneResizeEvent *event) { QGraphicsWidget::resizeEvent(event); if (d->background) { d->background->resizePanel(boundingRect().size()); } updateConstraints(Plasma::SizeConstraint); if (d->modificationsTimerId != -1) { // schedule a save if (d->modificationsTimerId) { killTimer(d->modificationsTimerId); } d->modificationsTimerId = startTimer(1000); } emit geometryChanged(); } void Applet::showConfigurationInterface() { if (!hasConfigurationInterface()) { return; } if (immutability() != Mutable && !KAuthorized::authorize("PlasmaAllowConfigureWhenLocked")) { return; } const QString dialogId = QString("%1settings%2").arg(id()).arg(name()); KConfigDialog * dlg = KConfigDialog::exists(dialogId); if (dlg) { KWindowSystem::setOnDesktop(dlg->winId(), KWindowSystem::currentDesktop()); dlg->show(); KWindowSystem::activateWindow(dlg->winId()); return; } const QString windowTitle = i18nc("@title:window", "%1 Settings", name()); if (d->package && d->configXml) { QString uiFile = d->package->filePath("mainconfigui"); if (uiFile.isEmpty()) { return; } KConfigDialog *dialog = new KConfigDialog(0, dialogId, d->configXml); dialog->setWindowTitle(windowTitle); dialog->setAttribute(Qt::WA_DeleteOnClose, true); QUiLoader loader; QFile f(uiFile); if (!f.open(QIODevice::ReadOnly)) { delete dialog; if (d->script) { d->script->showConfigurationInterface(); } return; } QWidget *w = loader.load(&f); f.close(); dialog->addPage(w, i18n("Settings"), icon(), i18n("%1 Settings", name())); dialog->show(); } else if (d->script) { d->script->showConfigurationInterface(); } else { KConfigSkeleton *nullManager = new KConfigSkeleton(0); KConfigDialog *dialog = new KConfigDialog(0, dialogId, nullManager); dialog->setFaceType(KPageDialog::Auto); dialog->setWindowTitle(windowTitle); dialog->setAttribute(Qt::WA_DeleteOnClose, true); createConfigurationInterface(dialog); //TODO: would be nice to not show dialog if there are no pages added? connect(dialog, SIGNAL(finished()), nullManager, SLOT(deleteLater())); //TODO: Apply button does not correctly work for now, so do not show it dialog->showButton(KDialog::Apply, false); connect(dialog, SIGNAL(applyClicked()), this, SLOT(configChanged())); connect(dialog, SIGNAL(okClicked()), this, SLOT(configChanged())); dialog->show(); } emit releaseVisualFocus(); } void Applet::configChanged() { if (d->script) { d->script->configChanged(); } } void Applet::createConfigurationInterface(KConfigDialog *parent) { Q_UNUSED(parent) // virtual method reimplemented by subclasses. // do not put anything here ... } KPluginInfo::List Applet::listAppletInfo(const QString &category, const QString &parentApp) { QString constraint; if (parentApp.isEmpty()) { constraint.append("not exist [X-KDE-ParentApp]"); } else { constraint.append("[X-KDE-ParentApp] == '").append(parentApp).append("'"); } if (!category.isEmpty()) { if (!constraint.isEmpty()) { constraint.append(" and "); } constraint.append("[X-KDE-PluginInfo-Category] == '").append(category).append("'"); if (category == "Miscellaneous") { constraint.append(" or (not exist [X-KDE-PluginInfo-Category] or [X-KDE-PluginInfo-Category] == '')"); } } KService::List offers = KServiceTypeTrader::self()->query("Plasma/Applet", constraint); //kDebug() << "Applet::listAppletInfo constraint was '" << constraint // << "' which got us " << offers.count() << " matches"; return KPluginInfo::fromServices(offers); } KPluginInfo::List Applet::listAppletInfoForMimetype(const QString &mimetype) { QString constraint = QString("'%1' in [X-Plasma-DropMimeTypes]").arg(mimetype); //kDebug() << "listAppletInfoForMimetype with" << mimetype << constraint; KService::List offers = KServiceTypeTrader::self()->query("Plasma/Applet", constraint); return KPluginInfo::fromServices(offers); } QStringList Applet::listCategories(const QString &parentApp, bool visibleOnly) { QString constraint = "exist [X-KDE-PluginInfo-Category]"; if (parentApp.isEmpty()) { constraint.append(" and not exist [X-KDE-ParentApp]"); } else { constraint.append(" and [X-KDE-ParentApp] == '").append(parentApp).append("'"); } KService::List offers = KServiceTypeTrader::self()->query("Plasma/Applet", constraint); QStringList categories; foreach (const KService::Ptr &applet, offers) { QString appletCategory = applet->property("X-KDE-PluginInfo-Category").toString(); if (visibleOnly && applet->noDisplay()) { // we don't want to show the hidden category continue; } //kDebug() << " and we have " << appletCategory; if (appletCategory.isEmpty()) { if (!categories.contains(i18n("Miscellaneous"))) { categories << i18n("Miscellaneous"); } } else if (!categories.contains(appletCategory)) { categories << appletCategory; } } categories.sort(); return categories; } Applet *Applet::load(const QString &appletName, uint appletId, const QVariantList &args) { if (appletName.isEmpty()) { return 0; } QString constraint = QString("[X-KDE-PluginInfo-Name] == '%1'").arg(appletName); KService::List offers = KServiceTypeTrader::self()->query("Plasma/Applet", constraint); bool isContainment = false; if (offers.isEmpty()) { //TODO: what would be -really- cool is offer to try and download the applet // from the network at this point offers = KServiceTypeTrader::self()->query("Plasma/Containment", constraint); isContainment = true; if (offers.isEmpty()) { kDebug() << "offers is empty for " << appletName; return 0; } } /* else if (offers.count() > 1) { kDebug() << "hey! we got more than one! let's blindly take the first one"; } */ KService::Ptr offer = offers.first(); if (appletId == 0) { appletId = ++AppletPrivate::s_maxAppletId; } if (!offer->property("X-Plasma-API").toString().isEmpty()) { kDebug() << "we have a script using the" << offer->property("X-Plasma-API").toString() << "API"; if (isContainment) { return new Containment(0, offer->storageId(), appletId); } return new Applet(0, offer->storageId(), appletId); } KPluginLoader plugin(*offer); if (!Plasma::isPluginVersionCompatible(plugin.pluginVersion()) && (appletName != "internal:extender")) { return 0; } QVariantList allArgs; allArgs << offer->storageId() << appletId << args; QString error; Applet *applet; if (appletName == "internal:extender") { applet = new ExtenderApplet(0, allArgs); } else { applet = offer->createInstance(0, allArgs, &error); } if (!applet) { kDebug() << "Couldn't load applet \"" << appletName << "\"! reason given: " << error; } return applet; } Applet *Applet::load(const KPluginInfo &info, uint appletId, const QVariantList &args) { if (!info.isValid()) { return 0; } return load(info.pluginName(), appletId, args); } QVariant Applet::itemChange(GraphicsItemChange change, const QVariant &value) { QVariant ret = QGraphicsWidget::itemChange(change, value); //kDebug() << change; switch (change) { case ItemSceneHasChanged: { QGraphicsScene *newScene = qvariant_cast(value); if (newScene) { d->checkImmutability(); } } break; case ItemPositionHasChanged: emit geometryChanged(); // fall through! case ItemTransformHasChanged: { if (d->modificationsTimerId != -1) { if (d->modificationsTimerId) { killTimer(d->modificationsTimerId); } d->modificationsTimerId = startTimer(1000); } } break; default: break; }; return ret; } QPainterPath Applet::shape() const { if (d->script) { return d->script->shape(); } return QGraphicsWidget::shape(); } QSizeF Applet::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const { QSizeF hint = QGraphicsWidget::sizeHint(which, constraint); //in panels make sure that the contents won't exit from the panel if (formFactor() == Horizontal && which == Qt::MinimumSize) { hint.setHeight(0); } else if (formFactor() == Vertical && which == Qt::MinimumSize) { hint.setWidth(0); } // enforce a square size in panels if (d->aspectRatioMode == Plasma::Square) { if (formFactor() == Horizontal) { hint.setWidth(size().height()); } else if (formFactor() == Vertical) { hint.setHeight(size().width()); } } else if (d->aspectRatioMode == Plasma::ConstrainedSquare) { //enforce a size not wider than tall if (formFactor() == Horizontal && (which == Qt::MaximumSize || size().height() <= KIconLoader::SizeLarge)) { hint.setWidth(size().height()); //enforce a size not taller than wide } else if (formFactor() == Vertical && (which == Qt::MaximumSize || size().width() <= KIconLoader::SizeLarge)) { hint.setHeight(size().width()); } } return hint; } void Applet::hoverEnterEvent(QGraphicsSceneHoverEvent *event) { Q_UNUSED(event) } void Applet::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) { Q_UNUSED(event) } void Applet::timerEvent(QTimerEvent *event) { if (d->transient) { killTimer(d->constraintsTimerId); killTimer(d->modificationsTimerId); return; } if (event->timerId() == d->constraintsTimerId) { killTimer(d->constraintsTimerId); d->constraintsTimerId = 0; flushPendingConstraintsEvents(); } else if (event->timerId() == d->modificationsTimerId) { killTimer(d->modificationsTimerId); d->modificationsTimerId = 0; // invalid group, will result in save using the default group KConfigGroup cg; save(cg); emit configNeedsSaving(); } } QRect Applet::screenRect() const { QGraphicsView *v = view(); if (v) { QPointF bottomRight = pos(); bottomRight.rx() += size().width(); bottomRight.ry() += size().height(); QPoint tL = v->mapToGlobal(v->mapFromScene(pos())); QPoint bR = v->mapToGlobal(v->mapFromScene(bottomRight)); return QRect(QPoint(tL.x(), tL.y()), QSize(bR.x() - tL.x(), bR.y() - tL.y())); } //The applet doesn't have a view on it. //So a screenRect isn't relevant. return QRect(QPoint(0, 0), QSize(0, 0)); } void Applet::raise() { setZValue(++AppletPrivate::s_maxZValue); } void Applet::lower() { setZValue(--AppletPrivate::s_minZValue); } void AppletPrivate::setIsContainment(bool nowIsContainment) { if (isContainment == nowIsContainment) { return; } isContainment = nowIsContainment; Containment *c = qobject_cast(q); if (c) { if (isContainment) { // set up the toolbox c->d->createToolBox(); } else { delete c->d->toolBox; c->d->toolBox = 0; } } } bool Applet::isContainment() const { return d->isContainment; } // PRIVATE CLASS IMPLEMENTATION AppletPrivate::AppletPrivate(KService::Ptr service, int uniqueID, Applet *applet) : appletId(uniqueID), q(applet), extender(0), backgroundHints(Applet::StandardBackground), appletDescription(service), needsConfigOverlay(0), background(0), script(0), package(0), configXml(0), mainConfig(0), pendingConstraints(NoConstraint), aspectRatioMode(Plasma::KeepAspectRatio), immutability(Mutable), actions(applet), activationAction(0), constraintsTimerId(0), modificationsTimerId(-1), hasConfigurationInterface(false), failed(false), isContainment(false), transient(false), ghost(false) { if (appletId == 0) { appletId = ++s_maxAppletId; } else if (appletId > s_maxAppletId) { s_maxAppletId = appletId; } } AppletPrivate::~AppletPrivate() { modificationsTimerId = -1; if (activationAction && activationAction->isGlobalShortcutEnabled()) { //kDebug() << "reseting global action for" << q->name() << activationAction->objectName(); activationAction->forgetGlobalShortcut(); } foreach (const QString &engine, loadedEngines) { DataEngineManager::self()->unloadEngine(engine); } if (extender) { delete extender; extender = 0; } delete script; script = 0; delete package; package = 0; delete configXml; configXml = 0; delete mainConfig; mainConfig = 0; } void AppletPrivate::init() { // WARNING: do not access config() OR globalConfig() in this method! // that requires a scene, which is not available at this point q->setCacheMode(Applet::DeviceCoordinateCache); q->setAcceptsHoverEvents(true); q->setFlag(QGraphicsItem::ItemIsFocusable, true); // FIXME: adding here because nothing seems to be doing it in QGraphicsView, // but it doesn't actually work anyways =/ q->setLayoutDirection(qApp->layoutDirection()); if (!appletDescription.isValid()) { kDebug() << "Check your constructor! " << "You probably want to be passing in a Service::Ptr " << "or a QVariantList with a valid storageid as arg[0]."; return; } QString api = appletDescription.property("X-Plasma-API").toString(); // we have a scripted plasmoid if (!api.isEmpty()) { // find where the Package is QString path = KStandardDirs::locate( "data", "plasma/plasmoids/" + appletDescription.pluginName() + '/'); if (path.isEmpty()) { q->setFailedToLaunch( true, i18n("Could not locate the %1 package required for the %2 widget.", appletDescription.pluginName(), appletDescription.name())); } else { // create the package and see if we have something real //kDebug() << "trying for" << path; PackageStructure::Ptr structure = Plasma::packageStructure(api, Plasma::AppletComponent); structure->setPath(path); package = new Package(path, structure); if (package->isValid()) { // now we try and set up the script engine. // it will be parented to this applet and so will get // deleted when the applet does script = Plasma::loadScriptEngine(api, q); if (!script) { delete package; package = 0; q->setFailedToLaunch(true, i18n("Could not create a %1 ScriptEngine for the %2 widget.", api, appletDescription.name())); } } else { q->setFailedToLaunch(true, i18n("Could not open the %1 package required for the %2 widget.", appletDescription.pluginName(), appletDescription.name())); delete package; package = 0; } if (package) { setupScriptSupport(); } } } q->setBackgroundHints(Applet::DefaultBackground); QObject::connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()), q, SLOT(themeChanged())); } // put all setup routines for script here. at this point we can assume that // package exists and that we have a script engin void AppletPrivate::setupScriptSupport() { Q_ASSERT(package); QString xmlPath = package->filePath("mainconfigxml"); if (!xmlPath.isEmpty()) { QFile file(xmlPath); // FIXME: KConfigSkeleton doesn't play well with KConfigGroup =/ KConfigGroup config = q->config(); configXml = new ConfigXml(&config, &file); QObject::connect(configXml, SIGNAL(configChanged()), q, SLOT(configChanged())); } if (!package->filePath("mainconfigui").isEmpty()) { q->setHasConfigurationInterface(true); } } QString AppletPrivate::globalName() const { if (!appletDescription.isValid()) { return QString(); } return appletDescription.service()->library(); } QString AppletPrivate::instanceName() { if (!appletDescription.isValid()) { return QString(); } return appletDescription.service()->library() + QString::number(appletId); } void AppletPrivate::scheduleConstraintsUpdate(Plasma::Constraints c) { // Don't start up a timer if we're just starting up // flushPendingConstraints will be called by Corona if (!constraintsTimerId && !(c & Plasma::StartupCompletedConstraint)) { constraintsTimerId = q->startTimer(0); } pendingConstraints |= c; } KConfigGroup *AppletPrivate::mainConfigGroup() { if (mainConfig) { return mainConfig; } if (isContainment) { const Containment *asContainment = qobject_cast(const_cast(q)); Q_ASSERT(asContainment); KConfigGroup containmentConfig; //kDebug() << "got a corona, baby?" << (QObject*)asContainment->corona(); if (asContainment->corona()) { containmentConfig = KConfigGroup(asContainment->corona()->config(), "Containments"); } else { containmentConfig = KConfigGroup(KGlobal::config(), "Containments"); } mainConfig = new KConfigGroup(&containmentConfig, QString::number(appletId)); } else { KConfigGroup appletConfig; if (q->containment()) { appletConfig = q->containment()->config(); appletConfig = KConfigGroup(&appletConfig, "Applets"); } else { kWarning() << "requesting config for" << q->name() << "without a containment!"; appletConfig = KConfigGroup(KGlobal::config(), "Applets"); } mainConfig = new KConfigGroup(&appletConfig, QString::number(appletId)); } return mainConfig; } QString AppletPrivate::visibleFailureText(const QString &reason) { QString text; if (reason.isEmpty()) { text = i18n("This object could not be created."); } else { text = i18n("This object could not be created for the following reason:

%1

", reason); } return text; } void AppletPrivate::checkImmutability() { const bool systemImmutable = q->globalConfig().isImmutable() || q->config().isImmutable() || ((!isContainment && q->containment()) && q->containment()->immutability() == SystemImmutable) || (dynamic_cast(q->scene()) && static_cast(q->scene())->immutability() == SystemImmutable); if (systemImmutable) { q->updateConstraints(ImmutableConstraint); } } void AppletPrivate::themeChanged() { if (background) { //do again the translucent background fallback q->setBackgroundHints(backgroundHints); qreal left; qreal right; qreal top; qreal bottom; background->getMargins(left, top, right, bottom); q->setContentsMargins(left, right, top, bottom); } q->update(); } void AppletPrivate::resetConfigurationObject() { mainConfigGroup()->deleteGroup(); delete mainConfig; mainConfig = 0; } uint AppletPrivate::s_maxAppletId = 0; uint AppletPrivate::s_maxZValue = 0; uint AppletPrivate::s_minZValue = 0; PackageStructure::Ptr AppletPrivate::packageStructure(0); AppletOverlayWidget::AppletOverlayWidget(QGraphicsWidget *parent) : QGraphicsWidget(parent) { resize(parent->size()); } void AppletOverlayWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) { Q_UNUSED(option) Q_UNUSED(widget) painter->save(); painter->setRenderHint(QPainter::Antialiasing); QColor wash = Plasma::Theme::defaultTheme()->color(Theme::BackgroundColor); wash.setAlphaF(.6); Applet *applet = qobject_cast(parentWidget()); if (applet->backgroundHints() & Applet::StandardBackground) { painter->fillRect(parentWidget()->contentsRect(), wash); } else { painter->fillPath(parentItem()->shape(), wash); } painter->restore(); } } // Plasma namespace #include "applet.moc"