(solved) Creating a new Event

[zarroba]

I'm implementing a new ItemEntry widget that is, basically, a TreeItem. This widget has a button where I click to open its children. I want to add an event to this widget to tell when this button is pressed. I created the const variable in my CEGUITreeItem:

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const String TreeItem::EventTreeItemExpanded( "TreeItemExpanded" );


I wired the click of the button to a new method (I'm using a toggle button created by me):

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button->subscribeEvent(ToggleButton::EventCheckStateChanged, Event::Subscriber(&CEGUI::TreeItem::button_SelectionHandler, this));


and in button_SelectionHandler I fire an event:

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bool TreeItem::button_SelectionHandler(const EventArgs& e)
{
    this->setExpanded(!this->isExpanded());

    WindowEventArgs args(this);
    onExpandedChanged(args);

    return true;
}


and onExpandedChanged code:

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void TreeItem::onExpandedChanged(WindowEventArgs& e)
{
        fireEvent(EventTreeItemExpanded, e, EventNamespace);
}


In my application I subscribe the list with this event:

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WindowManager::getSingleton().getWindow("Demo7/Window2/Listbox")->
        subscribeEvent(TreeItem::EventTreeItemExpanded, Event::Subscriber(&Demo7Sample::handleExpand, this));


But when I click the button all these methods are executed but the one in my application. Because the use I'll have with these trees is very dynamic I wouldn't like to subscribe each node of the tree. How can I make this event to be subscribed by the list and make it work?

Thanks,
José Tavares

[zarroba]

Well while I was writing this post I had an idea. I stil wrote and post it because it could be of use by someone. What I did whas to change the onExpandedChanged to this:

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void TreeItem::onExpandedChanged(WindowEventArgs& e)
{
        d_ownerList->fireEvent(EventTreeItemExpanded, e, EventNamespace);
}


But I somehow doubt that this is the right way to do it. It works and because you can get the selected item from the list, you can still access the node you clicked on. Is this the right way to do it? is there a better way?

Thanks,
José Pedro Tavares

[scriptkid]

Sounds like a good apprauch, especially since you say you don't want to subscribe to all nodes.

You know that there is already a tree control in SVN, don't you?

[zarroba]

Yes, but the use I'll make of the tree has some specificities that made me easier to create a new one rather than adapt an existent one. It's almost finish so I won't have much more work to do with them.

José Tavares

[fjeronimo]

Always nice to see another portuguese...