/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /*************************************************************************** * settings.h * * Tue Mar 22 10:59:46 CET 2016 * Copyright 2016 Christian Gl�ckner * cgloeckner@freenet.de ****************************************************************************/ /* * This file is part of DrumGizmo. * * DrumGizmo is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * DrumGizmo is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with DrumGizmo; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #pragma once #include <atomic> #include <string> #include <cassert> #include "atomic.h" #include "notifier.h" enum class LoadStatus : unsigned int { Idle, Loading, Done, Error }; //! Engine settings struct Settings { Atomic<std::string> drumkit_file{""}; Atomic<LoadStatus> drumkit_load_status{LoadStatus::Idle}; Atomic<std::string> midimap_file{""}; Atomic<LoadStatus> midimap_load_status{LoadStatus::Idle}; Atomic<bool> enable_velocity_modifier{true}; Atomic<float> velocity_modifier_falloff{0.5f}; Atomic<float> velocity_modifier_weight{0.25f}; Atomic<bool> enable_velocity_randomiser{false}; Atomic<float> velocity_randomiser_weight{0.1f}; Atomic<double> samplerate{44100.0}; Atomic<bool> enable_resampling{true}; Atomic<std::size_t> number_of_files{0}; Atomic<std::size_t> number_of_files_loaded{0}; Atomic<std::string> current_file{""}; }; //! Settings getter class. struct SettingsGetter { SettingRef<std::string> drumkit_file; SettingRef<LoadStatus> drumkit_load_status; SettingRef<std::string> midimap_file; SettingRef<LoadStatus> midimap_load_status; SettingRef<bool> enable_velocity_modifier; SettingRef<float> velocity_modifier_falloff; SettingRef<float> velocity_modifier_weight; SettingRef<bool> enable_velocity_randomiser; SettingRef<float> velocity_randomiser_weight; SettingRef<double> samplerate; SettingRef<bool> enable_resampling; SettingRef<std::size_t> number_of_files; SettingRef<std::size_t> number_of_files_loaded; SettingRef<std::string> current_file; SettingsGetter(Settings& settings) : drumkit_file(settings.drumkit_file) , drumkit_load_status(settings.drumkit_load_status) , midimap_file(settings.midimap_file) , midimap_load_status(settings.midimap_load_status) , enable_velocity_modifier{settings.enable_velocity_modifier} , velocity_modifier_falloff{settings.velocity_modifier_falloff} , velocity_modifier_weight{settings.velocity_modifier_weight} , enable_velocity_randomiser{settings.enable_velocity_randomiser} , velocity_randomiser_weight{settings.velocity_randomiser_weight} , samplerate{settings.samplerate} , enable_resampling{settings.enable_resampling} , number_of_files{settings.number_of_files} , number_of_files_loaded{settings.number_of_files_loaded} , current_file{settings.current_file} { } }; //! Settings change notifier class. class SettingsNotifier { public: Notifier<std::string> drumkit_file; Notifier<LoadStatus> drumkit_load_status; Notifier<std::string> midimap_file; Notifier<LoadStatus> midimap_load_status; Notifier<bool> enable_velocity_modifier; Notifier<float> velocity_modifier_falloff; Notifier<float> velocity_modifier_weight; Notifier<bool> enable_velocity_randomiser; Notifier<float> velocity_randomiser_weight; Notifier<double> samplerate; Notifier<bool> enable_resampling; Notifier<std::size_t> number_of_files; Notifier<std::size_t> number_of_files_loaded; Notifier<std::string> current_file; void evaluate() { #define EVAL(x) if(settings.x.hasChanged()) { x(settings.x.getValue()); } EVAL(drumkit_file); EVAL(drumkit_load_status); EVAL(midimap_file); EVAL(midimap_load_status); EVAL(enable_velocity_modifier); EVAL(velocity_modifier_falloff); EVAL(velocity_modifier_weight); EVAL(enable_velocity_randomiser); EVAL(velocity_randomiser_weight); EVAL(samplerate); EVAL(enable_resampling); EVAL(number_of_files); EVAL(number_of_files_loaded); EVAL(current_file); } SettingsNotifier(Settings& settings) : settings(settings) { } private: SettingsGetter settings; }; // lovely reminder: NO, GLOCKE. NOOOO!! /* enum class IntParams { Foo = 0 }; struct Settings { std::array<std::atomic<int>, 5> ints; Settings() : ints{} { //get(IntParams::Foo).store(3); } std::atomic<int>& get(IntParams param) { return ints[(size_t)param]; } }; struct SettingsGetter { std::vector<SettingRef<int>> ints; SettingsGetter(Settings& parent) { for(auto& atomic: parent.ints) { ints.emplace_back(atomic); } } }; */