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check for signals existence before connecting

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removes a lot of warnings
This commit is contained in:
Marco Martin 2012-12-13 14:16:56 +01:00
parent 0ed74e50d0
commit 0aebfa70e5
1 changed files with 34 additions and 18 deletions
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36
declarativeimports/core/declarativeitemcontainer.cpp
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@ -49,27 +49,43 @@ void DeclarativeItemContainer::setDeclarativeItem(QDeclarativeItem *item, bool r
connect(m_declarativeItem.data(), SIGNAL(widthChanged()), this, SLOT(widthChanged()));
connect(m_declarativeItem.data(), SIGNAL(heightChanged()), this, SLOT(heightChanged()));
qreal minimumWidth = 0;
qreal minimumHeight = 0;
qreal maximumWidth = 0;
qreal maximumHeight = 0;
qreal preferredWidth = 0;
qreal preferredHeight = 0;
qreal minimumWidth = -1;
qreal minimumHeight = -1;
qreal maximumWidth = -1;
qreal maximumHeight = -1;
qreal preferredWidth = -1;
qreal preferredHeight = -1;
if (item->metaObject()->indexOfProperty("minimumWidth") >= 0 ) {
minimumWidth = item->property("minimumWidth").toReal();
minimumHeight = item->property("minimumHeight").toReal();
QObject::connect(item, SIGNAL(minimumWidthChanged()), this, SLOT(minimumWidthChanged()));
}
if (item->metaObject()->indexOfProperty("minimumHeight") >= 0 ) {
minimumHeight = item->property("minimumHeight").toReal();
QObject::connect(item, SIGNAL(minimumHeightChanged()), this, SLOT(minimumHeightChanged()));
}
if (item->metaObject()->indexOfProperty("maximumWidth") >= 0 ) {
maximumWidth = item->property("maximumWidth").toReal();
maximumHeight = item->property("maximumHeight").toReal();
QObject::connect(item, SIGNAL(maximumWidthChanged()), this, SLOT(maximumWidthChanged()));
QObject::connect(item, SIGNAL(maximumHeightChanged()), this, SLOT(maximumHeightChanged()));
}
if (item->metaObject()->indexOfProperty("maximumHeight") >= 0 ) {
maximumHeight = item->property("maximumHeight").toReal();
QObject::connect(item, SIGNAL(maximumHeightChanged()), this, SLOT(maximumHeightChanged()));
}
if (item->metaObject()->indexOfProperty("preferredWidth") >= 0 ) {
preferredWidth = item->property("preferredWidth").toReal();
preferredHeight = item->property("preferredHeight").toReal();
QObject::connect(item, SIGNAL(preferredWidthChanged()), this, SLOT(preferredWidthChanged()));
}
if (item->metaObject()->indexOfProperty("preferredHeight") >= 0 ) {
preferredHeight = item->property("preferredHeight").toReal();
QObject::connect(item, SIGNAL(preferredHeightChanged()), this, SLOT(preferredHeightChanged()));
}
if (minimumWidth > 0 && minimumHeight > 0) {
setMinimumSize(minimumWidth, minimumHeight);