all: rename modules s#^opentrack-##. and opentrack -> api

Adjust usages.

1 files changed, 481 insertions, 0 deletions

diff --git a/compat/options.hpp b/compat/options.hpp
new file mode 100644
index 00000000..40aca2de
--- /dev/null
+++ b/compat/options.hpp
@@ -0,0 +1,481 @@
+/* Copyright (c) 2013-2016 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 <cinttypes>
+#include <vector>
+#include <memory>
+
+#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 <QApplication>
+
+#include <QMetaType>
+#include <QDataStream>
+
+#include <QDebug>
+
+#include "export.hpp"
+#include "slider.hpp"
+
+#include "util.hpp"
+
+#define OPENTRACK_CONFIG_FILENAME_KEY "settings-filename"
+#define OPENTRACK_DEFAULT_CONFIG "default.ini"
+#define OPENTRACK_ORG "opentrack-2.3"
+
+namespace options {
+    namespace {
+        class custom_type_initializer
+        {
+            custom_type_initializer();
+            static custom_type_initializer singleton;
+        };
+    }
+
+    template<typename k, typename v> using map = std::map<k, v>;
+
+    // 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() const;
+        void put(const QString& s, const QVariant& d);
+        bool contains(const QString& s) const;
+        static QString ini_directory();
+        static QString ini_filename();
+        static QString ini_pathname();
+        static const QStringList ini_list();
+        static const mem<QSettings> ini_file();
+        bool operator==(const group& other) const;
+        bool operator!=(const group& other) const { return !(*this == other); }
+
+        template<typename t>
+        t get(const QString& k) const
+        {
+            auto value = kvs.find(k);
+            if (value != kvs.cend())
+                return value->second.value<t>();
+            return t();
+        }
+    };
+
+    class OPENTRACK_COMPAT_EXPORT impl_bundle : public QObject
+    {
+        Q_OBJECT
+    protected:
+        QMutex mtx;
+        const QString group_name;
+        group saved;
+        group transient;
+        impl_bundle(const impl_bundle&) = delete;
+        impl_bundle& operator=(const impl_bundle&) = delete;
+    signals:
+        void reloading();
+        void saving() const;
+    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) const;
+        void save();
+        bool modifiedp() const;
+
+        template<typename t>
+        t get(const QString& name) const
+        {
+            QMutexLocker l(const_cast<QMutex*>(&mtx));
+            return transient.get<t>(name);
+        }
+    };
+
+    namespace detail
+    {
+        class OPENTRACK_COMPAT_EXPORT opt_bundle final : public impl_bundle
+        {
+        public:
+            opt_bundle(const QString& group_name);
+            ~opt_bundle();
+        };
+
+        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<detail::opt_bundle>;
+
+    inline pbundle bundle(const QString& name)
+    {
+         return detail::singleton().bundle(name);
+    }
+
+#define OPENTRACK_DEFINE_SLOT(t) void setValue(t datum) { store(datum); }
+#define OPENTRACK_DEFINE_SIGNAL(t) void valueChanged(t)
+
+    class OPENTRACK_COMPAT_EXPORT base_value : public QObject
+    {
+        Q_OBJECT
+    public:
+        QString name() const { return self_name; }
+        base_value(pbundle b, const QString& name);
+    signals:
+        OPENTRACK_DEFINE_SIGNAL(double);
+        OPENTRACK_DEFINE_SIGNAL(float);
+        OPENTRACK_DEFINE_SIGNAL(int);
+        OPENTRACK_DEFINE_SIGNAL(bool);
+        OPENTRACK_DEFINE_SIGNAL(const QString&);
+        OPENTRACK_DEFINE_SIGNAL(const slider_value&);
+    protected:
+        pbundle b;
+        QString self_name;
+
+        template<typename t>
+        void store(const t& datum)
+        {
+            b->store_kv(self_name, QVariant::fromValue(datum));
+            emit valueChanged(static_cast<t>(datum));
+        }
+        void store(float datum)
+        {
+            store(double(datum));
+        }
+
+    public slots:
+        OPENTRACK_DEFINE_SLOT(double)
+        OPENTRACK_DEFINE_SLOT(int)
+        OPENTRACK_DEFINE_SLOT(bool)
+        OPENTRACK_DEFINE_SLOT(const QString&)
+        OPENTRACK_DEFINE_SLOT(const slider_value&)
+    public slots:
+        virtual void reload() = 0;
+    };
+
+    namespace detail {
+        template<typename t>
+        struct value_get_traits
+        {
+            static inline t get(const t& val, const t&)
+            {
+                return val;
+            }
+        };
+
+        template<>
+        struct value_get_traits<slider_value>
+        {
+            using t = slider_value;
+            static inline t get(const t& val, const t& def)
+            {
+                return t(val.cur(), def.min(), def.max());
+            }
+        };
+    }
+
+    template<typename t_>
+    class value : public base_value
+    {
+        template<typename t__, typename Enable = void>
+        struct get_t
+        { using t = t__; };
+
+        // Qt uses int a lot in slots so use it for all enums
+        template<typename t__>
+        struct get_t<t__, typename std::enable_if<std::is_enum<t__>::value>::type>
+        //{ using t = typename std::underlying_type<t__>::type; };
+        { using t = int; };
+
+        using t = t_;
+    public:
+        using underlying_t = typename get_t<t_>::t;
+
+        t operator=(const t& datum)
+        {
+            store(static_cast<underlying_t>(datum));
+            return datum;
+        }
+
+        static constexpr const Qt::ConnectionType DIRECT_CONNTYPE = Qt::AutoConnection;
+        static constexpr const Qt::ConnectionType SAFE_CONNTYPE = Qt::QueuedConnection;
+
+        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)
+        {
+        }
+
+        t get() const
+        {
+            t val = b->contains(self_name)
+                    ? static_cast<t>(b->get<underlying_t>(self_name))
+                    : def;
+            return detail::value_get_traits<t>::get(val, def);
+        }
+
+        operator t() const { return get(); }
+
+        void reload() override
+        {
+            *this = static_cast<t>(*this);
+        }
+
+    private:
+        t def;
+    };
+
+    struct OPENTRACK_COMPAT_EXPORT opts
+    {
+        pbundle b;
+        opts(const QString& name);
+        opts& operator=(const opts&) = delete;
+        opts(const opts&) = delete;
+        ~opts();
+    };
+
+    template<typename t, typename q>
+    inline void tie_setting(value<t>&, q*);
+
+    template<typename t>
+    inline
+    typename std::enable_if<std::is_enum<t>::value>::type
+    tie_setting(value<t>& v, QComboBox* cb)
+    {
+        cb->setCurrentIndex(cb->findData((unsigned)static_cast<t>(v)));
+        v = static_cast<t>(cb->currentData().toInt());
+
+        // QObject::connect plays badly with std::bind of std::shared_ptr. Data seems to get freed.
+        // Direct accesses of cb->currentData within arbitrary thread context cause crashes as well.
+        // Hence we go for a verbose implementation.
+
+        std::vector<int> enum_cases;
+        enum_cases.reserve(unsigned(cb->count()));
+
+        for (int i = 0; i < cb->count(); i++)
+            enum_cases.push_back(cb->itemData(i).toInt());
+
+        struct fn1
+        {
+            value<t>& v;
+            QComboBox* cb;
+            std::vector<int> enum_cases;
+
+            fn1(value<t>& v, QComboBox* cb, const std::vector<int>& enum_cases) :
+                v(v),
+                cb(cb),
+                enum_cases(enum_cases)
+            {
+            }
+
+            void operator()(int idx)
+            {
+                if (idx < 0 || idx >= (int)enum_cases.size())
+                    v = static_cast<t>(-1);
+                else
+                    v = static_cast<t>(t(std::intptr_t(enum_cases[idx])));
+            }
+        };
+
+        struct fn2
+        {
+            value<t>& v;
+            QComboBox* cb;
+            std::vector<int> enum_cases;
+
+            fn2(value<t>& v, QComboBox* cb, const std::vector<int>& enum_cases) :
+                v(v),
+                cb(cb),
+                enum_cases(enum_cases)
+            {
+            }
+
+            void operator()(int val)
+            {
+                for (unsigned i = 0; i < enum_cases.size(); i++)
+                {
+                    if (val == enum_cases[i])
+                    {
+                        cb->setCurrentIndex(i);
+                        return;
+                    }
+                }
+                cb->setCurrentIndex(-1);
+            }
+        };
+
+        base_value::connect(cb,
+                            static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
+                            &v,
+                            fn1(v, cb, enum_cases),
+                            v.DIRECT_CONNTYPE);
+        base_value::connect(&v,
+                            static_cast<void (base_value::*)(int)>(&base_value::valueChanged),
+                            cb,
+                            fn2(v, cb, enum_cases),
+                            v.DIRECT_CONNTYPE);
+    }
+
+    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.DIRECT_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);
+    }
+
+    template<>
+    inline void tie_setting(value<slider_value>& v, QSlider* w)
+    {
+        // we can't get these at runtime since signals cross threads
+        const int q_min = w->minimum();
+        const int q_max = w->maximum();
+        const int q_diff = q_max - q_min;
+
+        slider_value sv(v);
+
+        const double sv_max = sv.max();
+        const double sv_min = sv.min();
+        const double sv_c = sv_max - sv_min;
+
+        w->setValue(int((sv.cur() - sv_min) / sv_c * q_diff + q_min));
+        v = slider_value(q_diff <= 0 ? 0 : (w->value() - q_min) * sv_c / (double)q_diff + sv_min, sv_min, sv_max);
+
+        base_value::connect(w,
+                            &QSlider::valueChanged,
+                            &v,
+                            [=, &v](int pos) -> void
+        {
+            if (q_diff <= 0 || pos <= 0)
+                v = slider_value(sv_min, sv_min, sv_max);
+            else
+                v = slider_value((pos - q_min) * sv_c / (double)q_diff + sv_min, sv_min, sv_max);
+        },
+        v.DIRECT_CONNTYPE);
+        base_value::connect(&v,
+                            static_cast<void(base_value::*)(double)>(&base_value::valueChanged),
+                            w,
+                            [=](double value) -> void
+        {
+            w->setValue(int(value * q_diff) + q_min);
+        },
+        v.SAFE_CONNTYPE);
+    }
+}
+