void
Context::Applet::cleanUpAndDelete()
{
QGraphicsWidget *parent = dynamic_cast<QGraphicsWidget *>( 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 ( this == l->itemAt( i ) )
{
l->removeAt( i );
break;
}
}
}
if ( Plasma::Applet::configScheme() ) {
Plasma::Applet::configScheme()->setDefaults();
}
Plasma::Applet::scene()->removeItem( this );
Plasma::Applet::deleteLater();
}
// Q_DECLARE_METATYPE(QGraphicsLayoutItem*)
QGraphicsLayoutItem *extractLayoutItem(QScriptContext *ctx, int index = 0, bool noExistingLayout = false)
{
QScriptValue v = ctx->argument(index);
if (ctx->argumentCount() == 0 || v.isQObject()) {
QObject *object = v.toQObject();
QGraphicsWidget *w = qobject_cast<QGraphicsWidget *>(object);
if (!w) {
AppletInterface *interface = qobject_cast<AppletInterface*>(object);
if (!interface) {
interface = qobject_cast<AppletInterface*>(ctx->engine()->globalObject().property("plasmoid").toQObject());
}
if (interface) {
w = interface->applet();
}
}
if (noExistingLayout && w->layout()) {
return 0;
}
return w;
}
QVariant variant = v.toVariant();
QGraphicsLayoutItem *item = variant.value<QGraphicsLayoutItem *>();
//this is horribly ugly code, but when a QLinearLayout* is stuffed into a QVariant,
//QVariant does not know that it is a QGraphicsLayoutItem. repeat for all subclasses
//of same
if (!item) {
item = variant.value<QGraphicsLayout *>();
if (!item) {
item = variant.value<QGraphicsLinearLayout *>();
if (!item) {
item = variant.value<QGraphicsGridLayout *>();
if (!item) {
item = variant.value<QGraphicsAnchorLayout *>();
}
}
}
}
QGraphicsWidget *w = dynamic_cast<QGraphicsWidget *>(item);
if (noExistingLayout && w && w->layout()) {
return 0;
}
return item;
}
/*!
\internal
This function is called from subclasses to add graphics widget \a w to
a layout. If the layout has a parentWidget, it will set that parent to be the parent of \a w.
If \a w is already in a layout, it will remove \a w from that layout.
*/
void QGraphicsLayoutPrivate::addChildWidget(QGraphicsWidget *w)
{
Q_Q(QGraphicsLayout);
QGraphicsWidget *lw = parentWidget();
QGraphicsWidget *pw = w->parentWidget();
if (pw == lw || !lw)
return;
if (pw) {
QGraphicsLayout *pl = pw->layout();
if (pl) {
removeWidgetFromLayout(pl, w);
}
}
#ifdef QT_DEBUG
if (pw) {
qWarning("QGraphicsLayout::addChildWidget: %s \"%s\" in wrong parent; moved to correct parent",
w->metaObject()->className(), w->objectName().toLocal8Bit().constData());
}
#endif
w->setParentLayoutItem(q);
w->setParentItem(lw);
}
bool QGraphicsLayoutItemPrivate::hasHeightForWidth() const
{
Q_Q(const QGraphicsLayoutItem);
if (isLayout) {
const QGraphicsLayout *l = static_cast<const QGraphicsLayout *>(q);
for (int i = l->count() - 1; i >= 0; --i) {
if (QGraphicsLayoutItemPrivate::get(l->itemAt(i))->hasHeightForWidth())
return true;
}
} else if (QGraphicsItem *item = q->graphicsItem()) {
if (item->isWidget()) {
QGraphicsWidget *w = static_cast<QGraphicsWidget *>(item);
if (w->layout()) {
return QGraphicsLayoutItemPrivate::get(w->layout())->hasHeightForWidth();
}
}
}
return q->sizePolicy().hasHeightForWidth();
}
bool QGraphicsLayoutItemPrivate::hasWidthForHeight() const
{
// enable this code when we add QSizePolicy::hasWidthForHeight() (For 4.8)
#if 1
return false;
#else
Q_Q(const QGraphicsLayoutItem);
if (isLayout) {
const QGraphicsLayout *l = static_cast<const QGraphicsLayout *>(q);
for (int i = l->count() - 1; i >= 0; --i) {
if (QGraphicsLayoutItemPrivate::get(l->itemAt(i))->hasWidthForHeight())
return true;
}
} else if (QGraphicsItem *item = q->graphicsItem()) {
if (item->isWidget()) {
QGraphicsWidget *w = static_cast<QGraphicsWidget *>(item);
if (w->layout()) {
return QGraphicsLayoutItemPrivate::get(w->layout())->hasWidthForHeight();
}
}
}
return q->sizePolicy().hasWidthForHeight();
#endif
}
void tst_QGraphicsLayout::invalidateAndMove()
{
// Check that if we set the position of an item and invalidate its layout at the same
// time, the widget keeps its correct size
QFETCH(bool, instantInvalidatePropagation);
QGraphicsLayout::setInstantInvalidatePropagation(instantInvalidatePropagation);
QGraphicsScene scene;
QGraphicsWidget *widget = new QGraphicsWidget;
new QGraphicsLinearLayout(widget);
widget->setMinimumSize(1,1);
widget->setPreferredSize(34,34);
widget->setMaximumSize(100,100);
widget->resize(widget->preferredSize());
scene.addItem(widget);
qApp->processEvents();
/* Invalidate and reactivate. The size should not have changed */
widget->layout()->invalidate();
widget->layout()->activate();
QCOMPARE(widget->geometry().size(), widget->preferredSize());
QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
qApp->processEvents();
QCOMPARE(widget->geometry().size(), widget->preferredSize());
QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
widget->layout()->invalidate();
widget->setX(1); //Change just the position using setX
QCOMPARE(widget->geometry().size(), widget->preferredSize());
QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
qApp->processEvents();
QCOMPARE(widget->geometry().size(), widget->preferredSize());
QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
widget->layout()->invalidate();
widget->setGeometry(1,1,34,34); //Change just the position using setGeometry
QCOMPARE(widget->geometry().size(), widget->preferredSize());
QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
qApp->processEvents();
QCOMPARE(widget->geometry().size(), widget->preferredSize());
QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
widget->layout()->invalidate();
widget->setGeometry(1,1,60,60); //Change just the size using setGeometry
QCOMPARE(widget->geometry().size(), QSizeF(60,60));
QCOMPARE(widget->layout()->geometry().size(), QSizeF(60,60));
qApp->processEvents();
QCOMPARE(widget->geometry().size(), QSizeF(60,60));
QCOMPARE(widget->layout()->geometry().size(), QSizeF(60,60));
widget->layout()->invalidate();
widget->setGeometry(0,0,34,34); //Change the size and position using setGeometry
QCOMPARE(widget->geometry().size(), widget->preferredSize());
QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
qApp->processEvents();
QCOMPARE(widget->geometry().size(), widget->preferredSize());
QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
QGraphicsLayout::setInstantInvalidatePropagation(false);
}