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74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
//
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// DynamicMachine.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 29/01/2018.
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// Copyright 2018 Thomas Harte. All rights reserved.
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//
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#pragma once
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#include "Configurable/Configurable.hpp"
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#include "Activity/Source.hpp"
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#include "MachineTypes.hpp"
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namespace Machine {
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/*!
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Provides the structure for owning a machine and dynamically casting it as desired without knowledge of
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the machine's parent class or, therefore, the need to establish a common one.
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*/
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struct DynamicMachine {
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virtual ~DynamicMachine() = default;
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virtual Activity::Source *activity_source() = 0;
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virtual Configurable::Device *configurable_device() = 0;
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virtual MachineTypes::TimedMachine *timed_machine() = 0;
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virtual MachineTypes::ScanProducer *scan_producer() = 0;
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virtual MachineTypes::AudioProducer *audio_producer() = 0;
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virtual MachineTypes::JoystickMachine *joystick_machine() = 0;
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virtual MachineTypes::KeyboardMachine *keyboard_machine() = 0;
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virtual MachineTypes::MouseMachine *mouse_machine() = 0;
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virtual MachineTypes::MediaTarget *media_target() = 0;
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virtual MachineTypes::MediaChangeObserver *media_change_observer() = 0;
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/*!
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Provides a raw pointer to the underlying machine if and only if this dynamic machine really is
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only a single machine.
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Very unsafe. Very temporary.
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TODO: eliminate in favour of introspection for machine-specific inputs. This is here temporarily
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only to permit continuity of certain features in the Mac port that have not yet made their way
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to the SDL/console port.
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*/
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virtual void *raw_pointer() = 0;
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};
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/*!
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Provides a templateable means to access the above.
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*/
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template <typename MachineType> MachineType *get(DynamicMachine &);
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#define SpecialisedGet(type, name) \
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template <> \
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inline type *get<type>(DynamicMachine &machine) { \
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return machine.name(); \
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}
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SpecialisedGet(Activity::Source, activity_source)
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SpecialisedGet(Configurable::Device, configurable_device)
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SpecialisedGet(MachineTypes::TimedMachine, timed_machine)
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SpecialisedGet(MachineTypes::ScanProducer, scan_producer)
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SpecialisedGet(MachineTypes::AudioProducer, audio_producer)
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SpecialisedGet(MachineTypes::JoystickMachine, joystick_machine)
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SpecialisedGet(MachineTypes::KeyboardMachine, keyboard_machine)
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SpecialisedGet(MachineTypes::MouseMachine, mouse_machine)
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SpecialisedGet(MachineTypes::MediaTarget, media_target)
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SpecialisedGet(MachineTypes::MediaChangeObserver, media_change_observer)
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#undef SpecialisedGet
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}
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