diff options
Diffstat (limited to 'opentrack-compat/options.hpp')
| -rw-r--r-- | opentrack-compat/options.hpp | 325 |
1 files changed, 325 insertions, 0 deletions
diff --git a/opentrack-compat/options.hpp b/opentrack-compat/options.hpp new file mode 100644 index 00000000..a317a1f7 --- /dev/null +++ b/opentrack-compat/options.hpp @@ -0,0 +1,325 @@ +/* Copyright (c) 2013-2015 Stanislaw Halik + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + */ + +#pragma once + +#include <memory> +#include <tuple> +#include <map> + +#include <QObject> +#include <QSettings> +#include <QString> +#include <QVariant> +#include <QMutex> +#include <QMutexLocker> +#include <QWidget> +#include <QComboBox> +#include <QCheckBox> +#include <QDoubleSpinBox> +#include <QSpinBox> +#include <QSlider> +#include <QLineEdit> +#include <QLabel> +#include <QTabWidget> +#include <QCoreApplication> +#include <QFileInfo> +#include <QDir> +#include <QStandardPaths> + +#include <cinttypes> + +#include <QDebug> + +#include <memory> + +#ifdef BUILD_compat +# include "compat-export.hpp" +#else +# include "compat-import.hpp" +#endif + +template<typename t> using mem = std::shared_ptr<t>; + +#define OPENTRACK_CONFIG_FILENAME_KEY "settings-filename" +#define OPENTRACK_DEFAULT_CONFIG "default.ini" +#define OPENTRACK_ORG "TrackHat opentrack-2.3" + +namespace options { + template<typename k, typename v> using map = std::map<k, v>; + + template<typename t> + // don't elide usages of the function, qvariant default implicit + // conversion results in nonsensical runtime behavior -sh + inline t qcruft_to_t (const QVariant& datum); + + template<> + inline int qcruft_to_t<int>(const QVariant& t) + { + return t.toInt(); + } + + template<> + inline QString qcruft_to_t<QString>(const QVariant& t) + { + return t.toString(); + } + + template<> + inline bool qcruft_to_t<bool>(const QVariant& t) + { + return t.toBool(); + } + + template<> + inline double qcruft_to_t<double>(const QVariant& t) + { + return t.toDouble(); + } + + template<> + inline QVariant qcruft_to_t<QVariant>(const QVariant& t) + { + return t; + } + + // snapshot of qsettings group at given time + class OPENTRACK_COMPAT_EXPORT group { + private: + map<QString, QVariant> kvs; + QString name; + public: + group(const QString& name); + void save(); + void put(const QString& s, const QVariant& d); + bool contains(const QString& s); + static QString ini_directory(); + static QString ini_filename(); + static QString ini_pathname(); + static const QStringList ini_list(); + static const mem<QSettings> ini_file(); + + template<typename t> + t get(const QString& k) + { + return qcruft_to_t<t>(kvs[k]); + } + }; + + class OPENTRACK_COMPAT_EXPORT impl_bundle : public QObject { + Q_OBJECT + protected: + QMutex mtx; + const QString group_name; + group saved; + group transient; + bool modified; + impl_bundle(const impl_bundle&) = delete; + impl_bundle& operator=(const impl_bundle&) = delete; + signals: + void reloading(); + void saving(); + public: + impl_bundle(const QString& group_name); + QString name() { return group_name; } + void reload(); + void store_kv(const QString& name, const QVariant& datum); + bool contains(const QString& name); + void save(); + bool modifiedp(); + + template<typename t> + t get(const QString& name) + { + QMutexLocker l(&mtx); + return transient.get<t>(name); + } + }; + + class opt_bundle; + + namespace detail + { + struct OPENTRACK_COMPAT_EXPORT opt_singleton + { + public: + using k = QString; + using v = opt_bundle; + using cnt = int; + using pbundle = std::shared_ptr<v>; + using tt = std::tuple<cnt, std::weak_ptr<v>>; + private: + QMutex implsgl_mtx; + map<k, tt> implsgl_data; + public: + opt_singleton(); + pbundle bundle(const k& key); + void bundle_decf(const k& key); + }; + + OPENTRACK_COMPAT_EXPORT opt_singleton& singleton(); + } + + using pbundle = std::shared_ptr<opt_bundle>; + + static inline pbundle bundle(const QString name) { return detail::singleton().bundle(name); } + + class OPENTRACK_COMPAT_EXPORT opt_bundle : public impl_bundle + { + public: + opt_bundle() : impl_bundle("i-have-no-name") {} + opt_bundle(const QString& group_name); + ~opt_bundle(); + }; + + class OPENTRACK_COMPAT_EXPORT base_value : public QObject + { + Q_OBJECT +#define DEFINE_SLOT(t) void setValue(t datum) { store(datum); } +#define DEFINE_SIGNAL(t) void valueChanged(t) + public: + QString name() { return self_name; } + base_value(pbundle b, const QString& name); + signals: + DEFINE_SIGNAL(double); + DEFINE_SIGNAL(int); + DEFINE_SIGNAL(bool); + DEFINE_SIGNAL(QString); + protected: + pbundle b; + QString self_name; + + template<typename t> + void store(const t& datum) + { + b->store_kv(self_name, datum); + emit valueChanged(static_cast<t>(datum)); + } + public slots: + DEFINE_SLOT(double) + DEFINE_SLOT(int) + DEFINE_SLOT(QString) + DEFINE_SLOT(bool) + public slots: + virtual void reload() = 0; + }; + + template<typename t> + class value : public base_value { + public: + t operator=(const t datum) + { + store(datum); + return datum; + } + static constexpr const Qt::ConnectionType DIRECT_CONNTYPE = Qt::DirectConnection; + static constexpr const Qt::ConnectionType SAFE_CONNTYPE = Qt::UniqueConnection; + value(pbundle b, const QString& name, t def) : base_value(b, name), def(def) + { + QObject::connect(b.get(), SIGNAL(reloading()), + this, SLOT(reload()), + DIRECT_CONNTYPE); + if (!b->contains(name) || b->get<QVariant>(name).type() == QVariant::Invalid) + *this = def; + } + value(pbundle b, const char* name, t def) : value(b, QString(name), def) {} + + operator t() const + { + return b->contains(self_name) ? b->get<t>(self_name) : def; + } + void reload() override { + *this = static_cast<t>(*this); + } + private: + t def; + }; + + struct OPENTRACK_COMPAT_EXPORT opts + { + pbundle b; + opts(const QString& name); + ~opts(); + }; + + template<typename t, typename q> + inline void tie_setting(value<t>&, q*); + + template<> + inline void tie_setting(value<int>& v, QComboBox* cb) + { + cb->setCurrentIndex(v); + v = cb->currentIndex(); + base_value::connect(cb, SIGNAL(currentIndexChanged(int)), &v, SLOT(setValue(int)), v.DIRECT_CONNTYPE); + base_value::connect(&v, SIGNAL(valueChanged(int)), cb, SLOT(setCurrentIndex(int)), v.SAFE_CONNTYPE); + } + + template<> + inline void tie_setting(value<QString>& v, QComboBox* cb) + { + cb->setCurrentText(v); + v = cb->currentText(); + base_value::connect(cb, SIGNAL(currentTextChanged(QString)), &v, SLOT(setValue(QString)), v.DIRECT_CONNTYPE); + base_value::connect(&v, SIGNAL(valueChanged(QString)), cb, SLOT(setCurrentText(QString)), v.SAFE_CONNTYPE); + } + + template<> + inline void tie_setting(value<bool>& v, QCheckBox* cb) + { + cb->setChecked(v); + base_value::connect(cb, SIGNAL(toggled(bool)), &v, SLOT(setValue(bool)), v.DIRECT_CONNTYPE); + base_value::connect(&v, SIGNAL(valueChanged(bool)), cb, SLOT(setChecked(bool)), v.SAFE_CONNTYPE); + } + + template<> + inline void tie_setting(value<double>& v, QDoubleSpinBox* dsb) + { + dsb->setValue(v); + base_value::connect(dsb, SIGNAL(valueChanged(double)), &v, SLOT(setValue(double)), v.DIRECT_CONNTYPE); + base_value::connect(&v, SIGNAL(valueChanged(double)), dsb, SLOT(setValue(double)), v.SAFE_CONNTYPE); + } + + template<> + inline void tie_setting(value<int>& v, QSpinBox* sb) + { + sb->setValue(v); + base_value::connect(sb, SIGNAL(valueChanged(int)), &v, SLOT(setValue(int)), v.DIRECT_CONNTYPE); + base_value::connect(&v, SIGNAL(valueChanged(int)), sb, SLOT(setValue(int)), v.SAFE_CONNTYPE); + } + + template<> + inline void tie_setting(value<int>& v, QSlider* sl) + { + sl->setValue(v); + v = sl->value(); + base_value::connect(sl, SIGNAL(valueChanged(int)), &v, SLOT(setValue(int)), v.DIRECT_CONNTYPE); + base_value::connect(&v, SIGNAL(valueChanged(int)), sl, SLOT(setValue(int)), v.SAFE_CONNTYPE); + } + + template<> + inline void tie_setting(value<QString>& v, QLineEdit* le) + { + le->setText(v); + base_value::connect(le, SIGNAL(textChanged(QString)), &v, SLOT(setValue(QString)), v.DIRECT_CONNTYPE); + base_value::connect(&v, SIGNAL(valueChanged(QString)),le, SLOT(setText(QString)), v.SAFE_CONNTYPE); + } + + template<> + inline void tie_setting(value<QString>& v, QLabel* lb) + { + lb->setText(v); + base_value::connect(&v, SIGNAL(valueChanged(QString)), lb, SLOT(setText(QString)), v.SAFE_CONNTYPE); + } + + template<> + inline void tie_setting(value<int>& v, QTabWidget* t) + { + t->setCurrentIndex(v); + base_value::connect(t, SIGNAL(currentChanged(int)), &v, SLOT(setValue(int)), v.DIRECT_CONNTYPE); + base_value::connect(&v, SIGNAL(valueChanged(int)), t, SLOT(setCurrentIndex(int)), v.SAFE_CONNTYPE); + } +} |