67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
#pragma once
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#include <cgv/base/base.h>
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#include <cgv/base/register.h>
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#include <cgv/signal/signal.h>
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#include <cgv/gui/lib_begin.h>
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namespace cgv {
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namespace gui {
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/// a trigger provides callbacks after a programmable time delay
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class CGV_API trigger
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{
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protected:
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double delay;
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bool recur;
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public:
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/// default construction
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trigger();
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/// return whether a trigger is scheduled
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bool is_scheduled() const;
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/// schedule a trigger event in delay seconds, return whether this was successful
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bool schedule_one_shot(double delay);
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/// start a recuring trigger with the given delay in seconds, return whether this was successful
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bool schedule_recuring(double delay);
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/// return the delay used for scheduling the last time
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double get_delay() const;
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/// return whether this is a recuring trigger
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bool is_recuring() const;
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/// stop a recuring trigger
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void stop();
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/// return the current time
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static double get_current_time();
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/// the shoot signal is called when the trigger is pulled and takes the current time and delay as argument
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signal::signal<double,double> shoot;
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};
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/// return the global trigger used for animation, which runs by default with 60 Hz
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extern CGV_API trigger& get_animation_trigger();
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class CGV_API trigger_server : public cgv::base::base, public cgv::base::server
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{
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public:
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virtual bool is_scheduled(const trigger*) = 0;
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virtual bool schedule_one_shot(trigger*, double delay) = 0;
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virtual bool schedule_recuring(trigger*, double delay) = 0;
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virtual bool stop(trigger*) = 0;
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virtual double get_current_time() const = 0;
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};
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/// ref counted pointer to trigger server
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typedef data::ref_ptr<trigger_server> trigger_server_ptr;
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#if _MSC_VER >= 1400
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CGV_TEMPLATE template class CGV_API data::ref_ptr<trigger_server>;
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#endif
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/// returns the currently registered trigger server
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extern CGV_API trigger_server_ptr get_trigger_server();
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/// registeres a new trigger server, call this in the on_register method of the server implementation
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extern CGV_API void register_trigger_server(trigger_server_ptr);
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}
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}
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#include <cgv/config/lib_end.h>
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