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-rw-r--r--demos/embeddeddialogs/customproxy.cpp17
1 files changed, 14 insertions, 3 deletions
diff --git a/demos/embeddeddialogs/customproxy.cpp b/demos/embeddeddialogs/customproxy.cpp
index 56a0548..dd8766f 100644
--- a/demos/embeddeddialogs/customproxy.cpp
+++ b/demos/embeddeddialogs/customproxy.cpp
@@ -44,7 +44,7 @@
#include <QtGui>
CustomProxy::CustomProxy(QGraphicsItem *parent, Qt::WindowFlags wFlags)
- : QGraphicsProxyWidget(parent, wFlags), popupShown(false)
+ : QGraphicsProxyWidget(parent, wFlags), popupShown(false), currentPopup(0)
{
timeLine = new QTimeLine(250, this);
connect(timeLine, SIGNAL(valueChanged(qreal)),
@@ -111,8 +111,19 @@ bool CustomProxy::sceneEventFilter(QGraphicsItem *watched, QEvent *event)
QVariant CustomProxy::itemChange(GraphicsItemChange change, const QVariant &value)
{
- if (change == ItemChildRemovedChange)
- removeSceneEventFilter(this);
+ if (change == ItemChildAddedChange || change == ItemChildRemovedChange) {
+ if (change == ItemChildAddedChange) {
+ currentPopup = qVariantValue<QGraphicsItem *>(value);
+ currentPopup->setCacheMode(ItemCoordinateCache);
+ if (scene())
+ currentPopup->installSceneEventFilter(this);
+ } else if (scene()) {
+ currentPopup->removeSceneEventFilter(this);
+ currentPopup = 0;
+ }
+ } else if (currentPopup && change == ItemSceneHasChanged) {
+ currentPopup->installSceneEventFilter(this);
+ }
return QGraphicsProxyWidget::itemChange(change, value);
}