723 lines
23 KiB
C++
723 lines
23 KiB
C++
/*
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* Copyright 2007 by Aaron Seigo <aseigo@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "containment.h"
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#include <QAction>
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#include <QDesktopWidget>
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#include <QFile>
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#include <QGraphicsSceneContextMenuEvent>
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#include <QMimeData>
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#include <QPainter>
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#include <QStyleOptionGraphicsItem>
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#include <KApplication>
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#include <KAuthorized>
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#include <KIcon>
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#include <KMenu>
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#include <KMimeType>
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#include <KRun>
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#include <KServiceTypeTrader>
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#include <KStandardDirs>
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#include "applethandle_p.h"
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#include "corona.h"
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#include "phase.h"
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#include "toolbox_p.h"
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#include "svg.h"
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#include "layouts/freelayout.h"
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#include "layouts/boxlayout.h"
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#include "widgets/pushbutton.h"
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namespace Plasma
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{
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static const int INTER_CONTAINMENT_MARGIN = 6;
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class Containment::Private
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{
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public:
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Private()
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: formFactor(Planar),
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location(Floating),
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screen(-1),
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immutable(false),
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toolbox(0),
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type(Containment::NoContainmentType)
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{
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}
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~Private()
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{
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qDeleteAll(applets);
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applets.clear();
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}
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DesktopToolbox* createToolbox(Containment* c)
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{
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if (!toolbox) {
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toolbox = new DesktopToolbox(c);
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toolbox->setPos(c->geometry().width() - toolbox->boundingRect().width(), 0);
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}
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return toolbox;
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}
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FormFactor formFactor;
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Location location;
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Applet::List applets;
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QMap<Applet*, AppletHandle*> handles;
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int screen;
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bool immutable;
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DesktopToolbox *toolbox;
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Containment::Type type;
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};
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Containment::Containment(QGraphicsItem* parent,
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const QString& serviceId,
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uint containmentId)
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: Applet(parent, serviceId, containmentId),
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d(new Private)
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{
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// WARNING: do not access config() OR globalConfig() in this method!
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// that requires a scene, which is not available at this point
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setDrawStandardBackground(false);
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setContainmentType(CustomContainment);
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}
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Containment::Containment(QObject* parent, const QVariantList& args)
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: Applet(parent, args),
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d(new Private)
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{
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// WARNING: do not access config() OR globalConfig() in this method!
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// that requires a scene, which is not available at this point
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setDrawStandardBackground(false);
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}
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Containment::~Containment()
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{
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delete d;
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}
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void Containment::init()
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{
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setCachePaintMode(NoCacheMode);
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setFlag(QGraphicsItem::ItemIsMovable, false);
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setFlag(QGraphicsItem::ItemClipsChildrenToShape, false);
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setAcceptDrops(true);
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setAcceptsHoverEvents(true);
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//TODO: would be nice to not do this on init, as it causes Phase to init
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connect(Phase::self(), SIGNAL(animationComplete(QGraphicsItem*,Plasma::Phase::Animation)),
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this, SLOT(appletAnimationComplete(QGraphicsItem*,Plasma::Phase::Animation)));
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if (d->type == NoContainmentType) {
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setContainmentType(DesktopContainment);
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}
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}
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void Containment::loadConstraints(KConfigGroup* group)
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{
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/*kDebug() << "!!!!!!!!!!!!initConstraints" << group->name() << containmentType();
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kDebug() << " location:" << group->readEntry("location", (int)d->location);
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kDebug() << " geom:" << group->readEntry("geometry", geometry());
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kDebug() << " formfactor:" << group->readEntry("formfactor", (int)d->formFactor);
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kDebug() << " screen:" << group->readEntry("screen", d->screen);*/
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setGeometry(group->readEntry("geometry", geometry()));
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setLocation((Plasma::Location)group->readEntry("location", (int)d->location));
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setFormFactor((Plasma::FormFactor)group->readEntry("formfactor", (int)d->formFactor));
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setScreen(group->readEntry("screen", d->screen));
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}
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void Containment::saveConstraints(KConfigGroup* group) const
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{
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// locking is saved in Applet::save
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group->writeEntry("screen", d->screen);
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group->writeEntry("formfactor", (int)d->formFactor);
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group->writeEntry("location", (int)d->location);
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}
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void Containment::containmentConstraintsUpdated(Plasma::Constraints constraints)
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{
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//kDebug() << "got containmentConstraintsUpdated" << constraints << (QObject*)d->toolbox;
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if (d->toolbox) {
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if (constraints & Plasma::ScreenConstraint) {
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d->toolbox->setPos(geometry().width() - d->toolbox->boundingRect().width(), 0);
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}
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if (constraints & Plasma::ImmutableConstraint) {
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d->toolbox->enableTool("addwidgets", !isImmutable());
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}
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}
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}
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Containment::Type Containment::containmentType() const
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{
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return d->type;
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}
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void Containment::setContainmentType(Containment::Type type)
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{
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d->type = type;
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if (isContainment() && type == DesktopContainment) {
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if (!d->toolbox) {
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Plasma::PushButton *tool = new Plasma::PushButton(i18n("Add Widgets"));
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tool->resize(tool->sizeHint());
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addToolBoxTool(tool, "addwidgets");
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connect(tool, SIGNAL(clicked()), this, SIGNAL(showAddWidgets()));
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tool = new Plasma::PushButton(i18n("Zoom In"));
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connect(tool, SIGNAL(clicked()), this, SIGNAL(zoomIn()));
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tool->resize(tool->sizeHint());
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addToolBoxTool(tool, "zoomIn");
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tool = new Plasma::PushButton(i18n("Zoom Out"));
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connect(tool, SIGNAL(clicked()), this, SIGNAL(zoomOut()));
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tool->resize(tool->sizeHint());
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addToolBoxTool(tool, "zoomOut");
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}
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} else {
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delete d->toolbox;
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d->toolbox = 0;
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}
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}
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Corona* Containment::corona() const
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{
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return dynamic_cast<Corona*>(scene());
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}
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void Containment::contextMenuEvent(QGraphicsSceneContextMenuEvent* event)
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{
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//kDebug() << "let's see if we manage to get a context menu here, huh";
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if (!scene() || !KAuthorized::authorizeKAction("desktop_contextmenu")) {
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QGraphicsItem::contextMenuEvent(event);
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return;
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}
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QPointF point = event->scenePos();
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QGraphicsItem* item = scene()->itemAt(point);
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if (item == this) {
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item = 0;
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}
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Applet* applet = 0;
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while (item) {
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applet = qgraphicsitem_cast<Applet*>(item);
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if (applet) {
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break;
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}
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item = item->parentItem();
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}
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KMenu desktopMenu;
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//kDebug() << "context menu event " << (QObject*)applet;
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if (!applet) {
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if (!scene() || (static_cast<Corona*>(scene())->isImmutable() && !KAuthorized::authorizeKAction("unlock_desktop"))) {
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//kDebug() << "immutability";
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QGraphicsItem::contextMenuEvent(event);
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return;
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}
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//FIXME: change this to show this only in debug mode (or not at all?)
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// before final release
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QList<QAction*> actions = contextActions();
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if (actions.count() < 1) {
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//kDebug() << "no applet, but no actions";
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QGraphicsItem::contextMenuEvent(event);
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return;
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}
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foreach(QAction* action, actions) {
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desktopMenu.addAction(action);
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}
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} else {
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bool hasEntries = false;
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if (applet->hasConfigurationInterface()) {
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QAction* configureApplet = new QAction(i18n("%1 Settings...", applet->name()), &desktopMenu);
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configureApplet->setIcon(KIcon("configure"));
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connect(configureApplet, SIGNAL(triggered(bool)),
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applet, SLOT(showConfigurationInterface()));
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desktopMenu.addAction(configureApplet);
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hasEntries = true;
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}
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if (scene() && !static_cast<Corona*>(scene())->isImmutable()) {
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QAction* closeApplet = new QAction(i18n("Remove this %1", applet->name()), &desktopMenu);
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QVariant appletV;
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appletV.setValue((QObject*)applet);
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closeApplet->setData(appletV);
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closeApplet->setIcon(KIcon("edit-delete"));
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connect(closeApplet, SIGNAL(triggered(bool)),
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this, SLOT(destroyApplet()));
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desktopMenu.addAction(closeApplet);
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hasEntries = true;
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}
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QList<QAction*> actions = applet->contextActions();
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if (!actions.isEmpty()) {
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desktopMenu.addSeparator();
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foreach(QAction* action, actions) {
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desktopMenu.addAction(action);
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}
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hasEntries = true;
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}
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if (!hasEntries) {
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QGraphicsItem::contextMenuEvent(event);
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kDebug() << "no entries";
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return;
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}
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}
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event->accept();
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//kDebug() << "executing at" << event->screenPos();
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desktopMenu.exec(event->screenPos());
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}
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void Containment::destroyApplet()
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{
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QAction *action = qobject_cast<QAction*>(sender());
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if (!action) {
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return;
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}
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Applet *applet = qobject_cast<Applet*>(action->data().value<QObject*>());
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Phase::self()->animateItem(applet, Phase::Disappear);
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}
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void Containment::setFormFactor(FormFactor formFactor)
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{
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if (d->formFactor == formFactor && layout()) {
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return;
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}
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//kDebug() << "switching FF to " << formFactor;
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d->formFactor = formFactor;
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Layout *lay = layout();
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setLayout(0);
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delete lay;
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lay = 0;
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switch (d->formFactor) {
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case Planar:
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lay = new FreeLayout(this);
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break;
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case Horizontal:
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lay = new BoxLayout(BoxLayout::LeftToRight, this);
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lay->setMargin(0);
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lay->setSpacing(4);
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break;
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case Vertical:
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lay = new BoxLayout(BoxLayout::TopToBottom, this);
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lay->setMargin(0);
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lay->setSpacing(4);
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break;
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case MediaCenter:
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//FIXME: need a layout type here!
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break;
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default:
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kDebug() << "This can't be happening! Or... can it? ;)" << d->formFactor;
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break;
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}
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if (lay) {
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foreach (Applet* applet, d->applets) {
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lay->addItem(applet);
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applet->updateConstraints(Plasma::FormFactorConstraint);
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}
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}
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updateConstraints(Plasma::FormFactorConstraint);
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}
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FormFactor Containment::formFactor() const
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{
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if (isContainment()) {
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return d->formFactor;
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}
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return Applet::formFactor();
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}
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void Containment::setLocation(Location location)
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{
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if (d->location == location) {
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return;
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}
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d->location = location;
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foreach (Applet* applet, d->applets) {
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applet->updateConstraints(Plasma::LocationConstraint);
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}
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setScreen(screen());
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updateConstraints(Plasma::LocationConstraint);
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}
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Location Containment::location() const
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{
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return d->location;
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}
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void Containment::clearApplets()
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{
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qDeleteAll(d->applets);
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d->applets.clear();
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}
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Applet* Containment::addApplet(const QString& name, const QVariantList& args, uint id, const QRectF& appletGeometry, bool delayInit)
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{
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Applet* applet = Applet::loadApplet(name, id, args);
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if (!applet) {
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kDebug() << "Applet" << name << "could not be loaded.";
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applet = new Applet;
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}
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//panels don't want backgrounds, which is important when setting geometry
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if (containmentType() == PanelContainment) {
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applet->setDrawStandardBackground(false);
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}
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addApplet(applet);
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//the applet needs to be given constraints before it can set its geometry
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applet->updateConstraints(Plasma::AllConstraints);
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//kDebug() << "adding applet" << applet->name() << "with a default geometry of" << appletGeometry << appletGeometry.isValid();
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if (appletGeometry.isValid()) {
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applet->setGeometry(appletGeometry);
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} else if (appletGeometry.x() != -1 && appletGeometry.y() != -1) {
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// yes, this means we can't have items start -1, -1
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applet->setGeometry(QRectF(appletGeometry.topLeft(),
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applet->sizeHint()));
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} else if (geometry().isValid()) {
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//TODO: Make sure new applets don't overlap with existing ones
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// Center exactly:
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QSizeF size = applet->sizeHint();
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qreal appletWidth = size.width();
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qreal appletHeight = size.height();
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qreal width = geometry().width();
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qreal height = geometry().height();
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//kDebug() << "measuring geometry with" << appletWidth << appletHeight << width << height;
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applet->setGeometry(QRectF(QPointF((width / 2) - (appletWidth / 2), (height / 2) - (appletHeight / 2)), size));
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}
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//kDebug() << applet->name() << "sizehint:" << applet->sizeHint() << "geometry:" << applet->geometry();
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if (delayInit) {
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if (containmentType() == DesktopContainment) {
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applet->installSceneEventFilter(this);
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}
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} else {
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applet->init();
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Phase::self()->animateItem(applet, Phase::Appear);
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}
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emit appletAdded(applet);
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return applet;
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}
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void Containment::addApplet(Applet *applet)
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{
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Containment *currentContainment = applet->containment();
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if (currentContainment && currentContainment != this) {
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applet->removeSceneEventFilter(currentContainment);
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applet->resetConfigurationObject();
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currentContainment->d->applets.removeAll(applet);
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}
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d->applets << applet;
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addChild(applet);
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if (currentContainment) {
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applet->installSceneEventFilter(this);
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}
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connect(applet, SIGNAL(destroyed(QObject*)),
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this, SLOT(appletDestroyed(QObject*)));
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}
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void Containment::appletDestroyed(QObject* object)
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{
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// we do a static_cast here since it really isn't an Applet by this
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// point anymore since we are in the qobject dtor. we don't actually
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// try and do anything with it, we just need the value of the pointer
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// so this unsafe looking code is actually just fine.
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Applet* applet = static_cast<Plasma::Applet*>(object);
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d->applets.removeAll(applet);
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emit appletRemoved(applet);
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}
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void Containment::appletAnimationComplete(QGraphicsItem *item, Plasma::Phase::Animation anim)
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{
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if (anim == Phase::Disappear) {
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QGraphicsItem *parent = item->parentItem();
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while (parent) {
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if (parent == this) {
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Applet *applet = qgraphicsitem_cast<Applet*>(item);
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if (applet) {
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applet->destroy();
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}
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break;
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}
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parent = parent->parentItem();
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}
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} else if (anim == Phase::Appear) {
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if (containmentType() == DesktopContainment &&
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item->parentItem() == this &&
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qgraphicsitem_cast<Applet*>(item)) {
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item->installSceneEventFilter(this);
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}
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}
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}
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Applet::List Containment::applets() const
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{
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return d->applets;
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}
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void Containment::setScreen(int screen)
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{
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// screen of -1 means no associated screen.
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// sanity check to make sure someone else doesn't have this screen already!
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if (screen > -1 && containmentType() == DesktopContainment && corona()) {
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Containment* currently = corona()->containmentForScreen(screen);
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if (currently && currently != this) {
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//kDebug() << "currently is on screen" << currently->screen() << "and is" << currently->name() << (QObject*)currently << (QObject*)this;
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currently->setScreen(-1);
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}
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}
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//kDebug() << "setting screen to" << screen << "and we are a" << containmentType();
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QDesktopWidget *desktop = QApplication::desktop();
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int numScreens = desktop->numScreens();
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if (screen < -1) {
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screen = -1;
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}
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//kDebug() << "setting screen to " << screen << "and type is" << containmentType();
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if (screen < numScreens && screen > -1) {
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QRect r = desktop->screenGeometry(screen);
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if (containmentType() == DesktopContainment) {
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// we need to find how many screens are to our top and left
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// to calculate the proper offsets for the margins.
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int x = r.x();
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int y = r.y();
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int screensLeft = 0;
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int screensAbove = 0;
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for (int i = 0; i < numScreens; ++i) {
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QRect otherScreen = desktop->screenGeometry(screen);
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|
if (x > otherScreen.x()) {
|
|
++screensLeft;
|
|
}
|
|
|
|
if (y > otherScreen.y()) {
|
|
++screensAbove;
|
|
}
|
|
}
|
|
|
|
r.moveLeft(r.x() + INTER_CONTAINMENT_MARGIN * screensLeft);
|
|
r.moveTop(r.y() + INTER_CONTAINMENT_MARGIN * screensAbove);
|
|
|
|
// FIXME: positioning at this x,y will break if we switch between containments for a
|
|
// given screen! we should change the pos() on new containment setup.
|
|
setGeometry(r);
|
|
//kDebug() << "setting geometry to" << desktop->screenGeometry(screen) << r << geometry();
|
|
} else if (containmentType() == PanelContainment) {
|
|
QRect r = desktop->screenGeometry(screen);
|
|
//kDebug() << "we are a panel on" << r << ", let's move ourselves to a negative coordinate system" << -r.height() - INTER_CONTAINMENT_MARGIN;
|
|
int vertOffset = r.height() + INTER_CONTAINMENT_MARGIN;
|
|
translate(0, -vertOffset);
|
|
}
|
|
}
|
|
|
|
d->screen = screen;
|
|
updateConstraints(Plasma::ScreenConstraint);
|
|
}
|
|
|
|
int Containment::screen() const
|
|
{
|
|
return d->screen;
|
|
}
|
|
|
|
KPluginInfo::List Containment::knownContainments(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/Containment", constraint);
|
|
//kDebug() << "constraint was" << constraint << "which got us" << offers.count() << "matches";
|
|
return KPluginInfo::fromServices(offers);
|
|
}
|
|
|
|
KPluginInfo::List Containment::knownContainmentsForMimetype(const QString &mimetype)
|
|
{
|
|
QString constraint = QString("'%1' in MimeTypes").arg(mimetype);
|
|
//kDebug() << "knownContainmentsForMimetype with" << mimetype << constraint;
|
|
KService::List offers = KServiceTypeTrader::self()->query("Plasma/Containment", constraint);
|
|
return KPluginInfo::fromServices(offers);
|
|
}
|
|
|
|
void Containment::dropEvent(QGraphicsSceneDragDropEvent *event)
|
|
{
|
|
//kDebug() << "drop event:" << event->mimeData()->text();
|
|
|
|
QString mimetype(static_cast<Corona*>(scene())->appletMimeType());
|
|
|
|
if (event->mimeData()->hasFormat(mimetype) && scene()) {
|
|
QString plasmoidName;
|
|
plasmoidName = event->mimeData()->data(mimetype);
|
|
QRectF geom(mapFromScene(event->scenePos()), QSize(0, 0));
|
|
addApplet(plasmoidName, QVariantList(), 0, geom);
|
|
event->acceptProposedAction();
|
|
} else if (KUrl::List::canDecode(event->mimeData())) {
|
|
KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
|
|
foreach (const KUrl& url, urls) {
|
|
KMimeType::Ptr mime = KMimeType::findByUrl(url);
|
|
QString mimeName = mime->name();
|
|
QRectF geom(event->scenePos(), QSize(0, 0));
|
|
QVariantList args;
|
|
args << url.url();
|
|
// kDebug() << mimeName;
|
|
KPluginInfo::List appletList = Applet::knownAppletsForMimetype(mimeName);
|
|
|
|
if (appletList.isEmpty()) {
|
|
// no special applet associated with this mimetype, let's
|
|
addApplet("url", args, 0, geom);
|
|
} else {
|
|
//TODO: should we show a dialog here to choose which plasmoid load if
|
|
//appletList.count() > 0?
|
|
addApplet(appletList.first().pluginName(), args, 0, geom);
|
|
}
|
|
}
|
|
event->acceptProposedAction();
|
|
}
|
|
}
|
|
|
|
void Containment::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
|
|
{
|
|
//FIXME Qt4.4 check to see if this is still necessary to avoid unecessary repaints
|
|
// check with QT_FLUSH_PAINT=1 and mouse through applets that accept hover,
|
|
// applets that don't and system windows
|
|
if (event->spontaneous()) {
|
|
Applet::hoverEnterEvent(event);
|
|
}
|
|
Q_UNUSED(event)
|
|
}
|
|
|
|
void Containment::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
|
|
{
|
|
//FIXME Qt4.4 check to see if this is still necessary to avoid unecessary repaints
|
|
// check with QT_FLUSH_PAINT=1 and mouse through applets that accept hover,
|
|
// applets that don't and system windows
|
|
// Applet::hoverLeaveEvent(event);
|
|
Q_UNUSED(event)
|
|
}
|
|
|
|
bool Containment::sceneEventFilter(QGraphicsItem *watched, QEvent *event)
|
|
{
|
|
Applet *applet = qgraphicsitem_cast<Applet*>(watched);
|
|
//QEvent::GraphicsSceneHoverEnter
|
|
|
|
// Otherwise we're watching something we shouldn't be...
|
|
//kDebug() << "got sceneEvent";
|
|
Q_ASSERT(applet!=0);
|
|
if (!d->applets.contains(applet)) {
|
|
return false;
|
|
}
|
|
|
|
switch (event->type()) {
|
|
case QEvent::GraphicsSceneHoverEnter:
|
|
//kDebug() << "got hoverenterEvent" << d->immutable << " " << applet->isImmutable();
|
|
if (!d->immutable && !applet->isImmutable() && !corona()->isImmutable() && !d->handles.contains(applet)) {
|
|
//kDebug() << "generated applet handle";
|
|
//TODO: there should be a small delay on showing these. they pop up too quickly/easily
|
|
// right now
|
|
AppletHandle *handle = new AppletHandle(this, applet);
|
|
d->handles[applet] = handle;
|
|
connect(handle, SIGNAL(disappearDone(AppletHandle*)),
|
|
this, SLOT(handleDisappeared(AppletHandle*)));
|
|
connect(applet, SIGNAL(geometryChanged()),
|
|
handle, SLOT(appletResized()));
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void Containment::handleDisappeared(AppletHandle *handle)
|
|
{
|
|
d->handles.remove(handle->applet());
|
|
handle->deleteLater();
|
|
}
|
|
|
|
void Containment::emitLaunchActivated()
|
|
{
|
|
kDebug();
|
|
emit launchActivated();
|
|
}
|
|
|
|
void Containment::addToolBoxTool(QGraphicsItem *tool, const QString& toolName)
|
|
{
|
|
d->createToolbox(this)->addTool(tool, toolName);
|
|
}
|
|
|
|
void Containment::enableToolBoxTool(const QString &toolname, bool enable)
|
|
{
|
|
d->createToolbox(this)->enableTool(toolname, enable);
|
|
}
|
|
|
|
} // Plasma namespace
|
|
|
|
#include "containment.moc"
|
|
|