350 lines
9.8 KiB
C++
350 lines
9.8 KiB
C++
/*
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* Copyright (C) 2007 Matt Broadstone <mbroadst@gmail.com>
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* Copyright (C) 2007 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 version 2 as
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* published by the Free Software Foundation
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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 "corona.h"
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#include <QApplication>
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#include <QDesktopWidget>
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#include <QGraphicsSceneDragDropEvent>
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#include <QMimeData>
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#include <QUrl>
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#include <QGraphicsView>
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#include <KLocale>
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#include <KMenu>
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#include <KRun>
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#include <KWindowSystem>
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#include <KDebug>
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#include <KMimeType>
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#include "applet.h"
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#include "dataengine.h"
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#include "widgets/vboxlayout.h"
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#include "widgets/icon.h"
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#include "karambamanager.h"
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#include "corona.h"
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using namespace Plasma;
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namespace Plasma
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{
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class Corona::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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layout(0),
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engineExplorerAction(0)
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{
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}
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bool immutable;
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Applet::List applets;
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FormFactor formFactor;
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Location location;
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Layout* layout;
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QAction *engineExplorerAction;
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};
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Corona::Corona(QObject * parent)
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: QGraphicsScene(parent),
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d(new Private)
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{
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init();
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}
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Corona::Corona(const QRectF & sceneRect, QObject * parent )
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: QGraphicsScene(sceneRect, parent),
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d(new Private)
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{
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init();
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}
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Corona::Corona(qreal x, qreal y, qreal width, qreal height, QObject * parent)
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: QGraphicsScene(x, y, width, height, parent),
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d(new Private)
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{
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init();
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}
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void Corona::init()
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{
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/* setBackgroundMode(Qt::NoBackground);*/
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/* QPalette pal = palette();
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pal.setBrush(QPalette::Base, Qt::transparent);
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setPalette(pal);*/
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//setViewport(new QGLWidget ( QGLFormat(QGL::StencilBuffer | QGL::AlphaChannel) ));
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/*
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KPluginInfo::List applets = Applet::knownApplets();
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kDebug() << "======= Applets =========" << endl;
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foreach (KPluginInfo* info, applets) {
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kDebug() << info->pluginName() << ": " << info->name() << endl;
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}
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kDebug() << "=========================" << endl;
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*/
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// connect(this, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(displayContextMenu(QPoint)));
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d->engineExplorerAction = new QAction(i18n("Engine Explorer"), this);
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connect(d->engineExplorerAction, SIGNAL(triggered(bool)), this, SLOT(launchExplorer()));
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d->immutable = false;
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// setContextMenuPolicy(Qt::CustomContextMenu);
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}
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Corona::~Corona()
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{
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while (!d->applets.isEmpty()) {
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delete d->applets.takeFirst();
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}
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}
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Location Corona::location() const
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{
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return d->location;
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}
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void Corona::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->constraintsUpdated();
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}
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}
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FormFactor Corona::formFactor() const
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{
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return d->formFactor;
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}
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void Corona::setFormFactor(FormFactor formFactor)
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{
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if (d->formFactor == formFactor) {
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return;
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}
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//kDebug() << "switching FF to " << formFactor << endl;
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d->formFactor = formFactor;
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delete d->layout;
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d->layout = 0;
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switch (d->formFactor) {
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case Planar:
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break;
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case Horizontal:
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//d->layout = new HBoxLayout;
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break;
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case Vertical:
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d->layout = new VBoxLayout;
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break;
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case MediaCenter:
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break;
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default:
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kDebug() << "This can't be happening!" << endl;
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break;
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}
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foreach (Applet* applet, d->applets) {
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applet->constraintsUpdated();
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}
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}
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QRectF Corona::maxSizeHint() const
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{
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//FIXME: this is a bit of a naive implementation, do you think? =)
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// we should factor in how much space we actually have left!
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return sceneRect();
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}
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void Corona::addPlasmoid(const QString& name)
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{
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Applet* applet = Applet::loadApplet(name);
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if (applet) {
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addItem(applet);
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//applet->constraintsUpdated();
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d->applets << applet;
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connect(applet, SIGNAL(destroyed(QObject*)),
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this, SLOT(appletDestroyed(QObject*)));
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} else {
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kDebug() << "Plasmoid " << name << " could not be loaded." << endl;
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}
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}
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void Corona::addKaramba(const KUrl& path)
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{
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QGraphicsItemGroup* karamba = KarambaManager::loadKaramba(path, this);
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if (karamba) {
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addItem(karamba);
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} else {
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kDebug() << "Karamba " << path << " could not be loaded." << endl;
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}
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}
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void Corona::dragEnterEvent( QGraphicsSceneDragDropEvent *event)
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{
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kDebug() << "Corona::dragEnterEvent(QGraphicsSceneDragDropEvent* event)" << endl;
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if (event->mimeData()->hasFormat("text/x-plasmoidservicename")) {
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event->acceptProposedAction();
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//TODO Create the applet, move to mouse position then send the
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// following event to lock it to the mouse
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//QMouseEvent event(QEvent::MouseButtonPress, event->pos(), Qt::LeftButton, event->mouseButtons(), 0);
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//QApplication::sendEvent(this, &event);
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}
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//TODO Allow dragging an applet from another Corona into this one while
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// keeping its settings etc.
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}
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void Corona::dragLeaveEvent(QGraphicsSceneDragDropEvent *event)
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{
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Q_UNUSED(event);
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kDebug() << "Corona::dragLeaveEvent(QGraphicsSceneDragDropEvent* event)" << endl;
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//TODO If an established Applet is dragged out of the Corona, remove it and
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// create a QDrag type thing to keep the Applet's settings
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}
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void Corona::dragMoveEvent(QGraphicsSceneDragDropEvent *event)
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{
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Q_UNUSED(event);
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kDebug() << "Corona::dragMoveEvent(QDragMoveEvent* event)" << endl;
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}
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void Corona::dropEvent(QGraphicsSceneDragDropEvent *event)
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{
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kDebug() << "Corona::dropEvent(QDropEvent* event)" << endl;
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if (event->mimeData()->hasFormat("text/x-plasmoidservicename")) {
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//TODO This will pretty much move into dragEnterEvent()
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QString plasmoidName;
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plasmoidName = event->mimeData()->data("text/x-plasmoidservicename");
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addPlasmoid(plasmoidName);
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d->applets.last()->setPos(event->pos());
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event->acceptProposedAction();
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} else if (KUrl::List::canDecode(event->mimeData())) {
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KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
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foreach (const KUrl& url, urls) {
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Plasma::Icon *icon = new Plasma::Icon(0);
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icon->setIcon(KMimeType::iconNameForUrl(url));
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icon->setSize(128,128);
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//TODO: associate the url with the icon, use the Button plasmoid here
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icon->setPos(event->scenePos()-QPoint(icon->boundingRect().width()/2,icon->boundingRect().height()/2));
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icon->show();
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addItem(icon);
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}
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event->acceptProposedAction();
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}
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}
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void Corona::contextMenuEvent(QGraphicsSceneContextMenuEvent *contextMenuEvent)
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{
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QPointF point = contextMenuEvent->scenePos();
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/*
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* example for displaying the SuperKaramba context menu
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QGraphicsItem *item = itemAt(point);
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if(item) {
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QObject *object = dynamic_cast<QObject*>(item->parentItem());
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if(object && object->objectName().startsWith("karamba")) {
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QContextMenuEvent event(QContextMenuEvent::Mouse, point);
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contextMenuEvent(&event);
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return;
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}
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}
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*/
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contextMenuEvent->accept();
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Applet* applet = qgraphicsitem_cast<Applet*>(itemAt(point));
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KMenu desktopMenu;
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kDebug() << "context menu event " << d->immutable << endl;
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if (!applet) {
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if (d->immutable) {
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return;
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}
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desktopMenu.setTitle("Corona");
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desktopMenu.addAction(d->engineExplorerAction);
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} else {
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desktopMenu.addTitle(applet->name());
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desktopMenu.addSeparator();
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QAction* configureApplet = new QAction(i18n("Configure Plasmoid..."), this);
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connect(configureApplet, SIGNAL(triggered(bool)),
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applet, SLOT(configureDialog())); //This isn't implemented in Applet yet...
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desktopMenu.addAction(configureApplet);
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if (!d->immutable) {
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QAction* closeApplet = new QAction(i18n("Close Plasmoid"), this);
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connect(closeApplet, SIGNAL(triggered(bool)),
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applet, SLOT(deleteLater()));
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desktopMenu.addAction(closeApplet);
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}
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}
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desktopMenu.exec(point.toPoint());
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}
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void Corona::launchExplorer()
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{
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KRun::run("plasmaengineexplorer", KUrl::List(), 0);
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}
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void Corona::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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int index = d->applets.indexOf(applet);
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if (index > -1) {
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d->applets.removeAt(index);
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}
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}
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bool Corona::isImmutable()
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{
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return d->immutable;
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}
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void Corona::setImmutable(bool immutable)
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{
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if (d->immutable == immutable) {
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return;
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}
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d->immutable = immutable;
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foreach (QGraphicsItem* item, items()) {
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QGraphicsItem::GraphicsItemFlags flags = item->flags();
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if (immutable) {
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flags ^= QGraphicsItem::ItemIsMovable;
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} else {
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flags |= QGraphicsItem::ItemIsMovable;
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}
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item->setFlags(flags);
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}
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}
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} // namespace Plasma
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#include "corona.moc"
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