move camera with scroller

[pabloa]

It appears in demo 4, I am trying to copy it in my project. the scrollbar is made, but the problem is asociate it the event. I copy the method to move the camera horizontally

Code: Select all

/*************************************************************************
   Method that moves the camera horizontally
*************************************************************************/
bool CEGUIOgre_FrameListener::horzMoveHandler(const CEGUI::EventArgs& e)
{
   using namespace CEGUI;

   static float lastPos = 0;

   Scrollbar* sb = (Scrollbar*)((const WindowEventArgs&)e).window;

   mRotY = 0;
   mRotX = sb->getScrollPosition() - lastPos;
   lastPos = sb->getScrollPosition();

   moveCamera();

   return true;
}


but dont run I dont undertand how asociatte event to scroller, slicer, etc... Could somebody help me?

[madlion]

Did you subscribe a event to call this method?

[martignasse]

I dont undertand how asociatte event to scroller, slicer, etc... Could somebody help me?

event system is a core cegui fonctionnality, you have to understand it.

Basicly, you tel to the event system that a button event react by a callback to a fonction :

Code: Select all

 YourButton->subscribeEvent(PushButton::EventClicked, Event::Subscriber( Namespace::YourFonction, this));

For more info, you should look in the FAQ at the question "What is the correct way to subscribe for an event?"

and in the API Reference in the CEGUI:EventSet class reference, the subscribeEvent fonction is the three before the end.

Hope it help.

[madlion]

martignasse wrote:

I dont undertand how asociatte event to scroller, slicer, etc... Could somebody help me?

Ups... next time i should read it more carefully.

[martignasse]

no problem,

for myself, it's not easy to found info in the API reference.

it's comming, slowly...

[pabloa]

OK ! I did it. how can the "scrollbar's Button" appear in the middle of the scrollbar. I want to be able move it rigth and left.

[martignasse]

OK ! I did it. how can the "scrollbar's Button" appear in the middle of the scrollbar. I want to be able move it rigth and left.

you should do something like making the midle value of you'r slider the default value.

for example, you want you'r slider control camera from -10 to 10, so you'r middle value is 0.
But because the slider widget can manage only positive value, you have to translate (with some helper fonctions) to 0 |-| 20 and make you'r middle value 10.

finely yourslider->setCurrentValue(10.0f) and the thumb will be in the middle.