36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
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#pragma once
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#include "lib_begin.h"
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namespace cgv {
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namespace signal {
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/// base class for signals that combine the boolean result of the attached functors with boolean and/or operations
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class CGV_API bool_combiner
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{
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protected:
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bool combine_result(bool new_value, bool& value) const;
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bool combine_with_and;
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bool short_circuit;
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public:
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//! construct from option string.
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/*! The option string can be composed of the following characters:
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- '&' ... combine with logical and
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- '|' ... combine with logical or
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- '*' ... short-circuit evaluation of boolean expression
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- '+' ... full evaluation
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*/
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bool_combiner(const char* opt);
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/// return the neutral bool value with which one can initialize the result variable
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bool get_neutral_value() const;
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/// set a different option string
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void set_options(const char* opt);
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/// return whether combination is done with the boolean and operation
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bool is_combination_with_and() const;
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/// return whether to perform short-circuit evaluation
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bool is_evaluation_short_circuit() const;
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};
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}
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}
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#include <cgv/config/lib_end.h>
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