Gabriele Cosmo
49 lines
1.5 KiB
Plaintext
49 lines
1.5 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_sg_event_dispatcher
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#define tools_sg_event_dispatcher
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// Node that holds "callbacks" that can be triggered when an event_action
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// traversed it. A typical example is to handle a mouse resize of the viewer/window
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// and response to it by changing some geomtry in the scene graphs (for example
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// to arrange that a tools::sg::plots maps the full viewer/window area).
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#include "node"
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#include "cbks"
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#include "event_action"
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#include "ecbk"
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namespace tools {
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namespace sg {
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class event_dispatcher : public node {
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TOOLS_NODE(event_dispatcher,tools::sg::event_dispatcher,node)
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public:
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virtual void event(event_action& a_action) {
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ecbk::exec_event_cbks(m_cbks.callbacks(),a_action.get_event(),&a_action,this);
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}
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public:
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event_dispatcher():parent(),m_cbks(){}
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virtual ~event_dispatcher(){}
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public:
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event_dispatcher(const event_dispatcher& a_from):parent(a_from),m_cbks(a_from.m_cbks){}
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event_dispatcher& operator=(const event_dispatcher& a_from){
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parent::operator=(a_from);
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m_cbks = a_from.m_cbks;
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return *this;
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}
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public:
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const sg::cbks& cbks() const {return m_cbks;}
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//sg::cbks& cbks() {return m_cbks;}
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void add_callback(bcbk* a_cbk) {m_cbks.add(a_cbk);} //we take ownership of a_cbk
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void copy_cbks(const sg::cbks& a_from,bool a_clear = true) {m_cbks.copy(a_from,a_clear);}
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void clear_cbks(){m_cbks.clear();}
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protected:
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sg::cbks m_cbks;
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};
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}}
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#endif
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