void UIWidget::addChild(const UIWidgetPtr& child)
{
if(!child) {
g_logger.traceWarning("attempt to add a null child into a UIWidget");
return;
}
if(child->isDestroyed()) {
g_logger.traceWarning("attemp to add a destroyed child into a UIWidget");
return;
}
if(hasChild(child)) {
g_logger.traceWarning("attempt to add a child again into a UIWidget");
return;
}
UIWidgetPtr oldLastChild = getLastChild();
m_children.push_back(child);
child->setParent(static_self_cast<UIWidget>());
// create default layout
if(!m_layout)
m_layout = UIAnchorLayoutPtr(new UIAnchorLayout(static_self_cast<UIWidget>()));
// add to layout and updates it
m_layout->addWidget(child);
// update new child states
child->updateStates();
// update old child index states
if(oldLastChild) {
oldLastChild->updateState(Fw::MiddleState);
oldLastChild->updateState(Fw::LastState);
}
g_ui.onWidgetAppear(child);
}
