93 lines
2.2 KiB
C++
93 lines
2.2 KiB
C++
#ifndef INCLUDED_GENERIC_CONTROLLER_H
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#define INCLUDED_GENERIC_CONTROLLER_H
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#include "ctrl-source.h"
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#include "eca-operator.h"
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/**
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* Generic controller class that connects controller sources
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* to objects supporting dynamic parameter control (classes
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* which inherit DYNAMIC_PARAMETERS).
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*
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* Related design patterns:
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* - Decorator (GoF175)
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*/
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class GENERIC_CONTROLLER : public CONTROLLER_SOURCE {
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public:
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/** @name Constructors and destructors */
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/*@{*/
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GENERIC_CONTROLLER(CONTROLLER_SOURCE* source,
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OPERATOR* dobj = 0,
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int param_id = 0,
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double range_low = 0.0,
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double range_high = 0.0);
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GENERIC_CONTROLLER* clone(void) const { return(0); }
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GENERIC_CONTROLLER* new_expr(void) const { return(new GENERIC_CONTROLLER(0)); }
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/*@}*/
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/** @name Public functions reimplemented from CONTROLLER_SOURCE */
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/*@{*/
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virtual void init(void);
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/**
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* Returns the current value, scale it and
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* applies it to target objects.
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*
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* @pre is_valid() == true
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*/
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virtual parameter_t value(double pos_secs);
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virtual void set_initial_value(parameter_t arg) { }
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/*@}*/
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/** @name Public functions reimplemented from ECA_OBJECT */
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/*@{*/
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virtual std::string name(void) const { return(source == 0 ? string("") : source->name()); }
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/*@}*/
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/** @name Public functions reimplemented from DYNAMIC_PARAMETERS */
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/*@{*/
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virtual bool variable_params(void) const { return true; }
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virtual std::string parameter_names(void) const { return("param-id,range-low,range-high," + source->parameter_names()); }
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virtual void set_parameter(int param, parameter_t value);
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virtual parameter_t get_parameter(int param) const;
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/*@}*/
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/** @name Public functions */
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/*@{*/
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bool is_valid(void) const { return(target != 0 && source != 0); }
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std::string status(void) const;
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void assign_target(OPERATOR* obj);
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void assign_source(CONTROLLER_SOURCE* obj);
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CONTROLLER_SOURCE* source_pointer(void) const { return(source); }
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OPERATOR* target_pointer(void) const { return(target); }
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/*@}*/
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private:
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OPERATOR* target;
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CONTROLLER_SOURCE* source;
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bool init_called_rep;
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int param_id_rep;
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double rangelow_rep, rangehigh_rep;
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double last_value_pos_rep;
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};
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#endif
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