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1 // Copyright (C) 2010, Guy Barrand. All rights 1 // Copyright (C) 2010, Guy Barrand. All rights reserved.
2 // See the file tools.license for terms. 2 // See the file tools.license for terms.
3 3
4 #ifndef tools_sg_event_dispatcher 4 #ifndef tools_sg_event_dispatcher
5 #define tools_sg_event_dispatcher 5 #define tools_sg_event_dispatcher
6 6
7 // Node that holds "callbacks" that can be tr 7 // Node that holds "callbacks" that can be triggered when an event_action
8 // traversed it. A typical example is to handl 8 // traversed it. A typical example is to handle a mouse resize of the viewer/window
9 // and response to it by changing some geomtry 9 // and response to it by changing some geomtry in the scene graphs (for example
10 // to arrange that a tools::sg::plots maps the 10 // to arrange that a tools::sg::plots maps the full viewer/window area).
11 11
12 #include "node" 12 #include "node"
13 #include "cbks" 13 #include "cbks"
14 #include "event_action" 14 #include "event_action"
15 #include "ecbk" 15 #include "ecbk"
16 16
17 namespace tools { 17 namespace tools {
18 namespace sg { 18 namespace sg {
19 19
20 class event_dispatcher : public node { 20 class event_dispatcher : public node {
21 TOOLS_NODE(event_dispatcher,tools::sg::event 21 TOOLS_NODE(event_dispatcher,tools::sg::event_dispatcher,node)
22 public: 22 public:
23 virtual void event(event_action& a_action) { 23 virtual void event(event_action& a_action) {
24 ecbk::exec_event_cbks(m_cbks.callbacks(),a 24 ecbk::exec_event_cbks(m_cbks.callbacks(),a_action.get_event(),&a_action,this);
25 } 25 }
26 public: 26 public:
27 event_dispatcher():parent(),m_cbks(){} 27 event_dispatcher():parent(),m_cbks(){}
28 virtual ~event_dispatcher(){} 28 virtual ~event_dispatcher(){}
29 public: 29 public:
30 event_dispatcher(const event_dispatcher& a_f 30 event_dispatcher(const event_dispatcher& a_from):parent(a_from),m_cbks(a_from.m_cbks){}
31 event_dispatcher& operator=(const event_disp 31 event_dispatcher& operator=(const event_dispatcher& a_from){
32 parent::operator=(a_from); 32 parent::operator=(a_from);
33 m_cbks = a_from.m_cbks; 33 m_cbks = a_from.m_cbks;
34 return *this; 34 return *this;
35 } 35 }
36 public: 36 public:
37 const sg::cbks& cbks() const {return m_cbks; 37 const sg::cbks& cbks() const {return m_cbks;}
38 //sg::cbks& cbks() {return m_cbks;} 38 //sg::cbks& cbks() {return m_cbks;}
39 void add_callback(bcbk* a_cbk) {m_cbks.add(a 39 void add_callback(bcbk* a_cbk) {m_cbks.add(a_cbk);} //we take ownership of a_cbk
40 void copy_cbks(const sg::cbks& a_from,bool a 40 void copy_cbks(const sg::cbks& a_from,bool a_clear = true) {m_cbks.copy(a_from,a_clear);}
41 void clear_cbks(){m_cbks.clear();} 41 void clear_cbks(){m_cbks.clear();}
42 protected: 42 protected:
43 sg::cbks m_cbks; 43 sg::cbks m_cbks;
44 }; 44 };
45 45
46 }} 46 }}
47 47
48 #endif 48 #endif