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-rw-r--r--facetracknoir/options.h303
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diff --git a/facetracknoir/options.h b/facetracknoir/options.h
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+/* Copyright (c) 2013 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 <QObject>
+#include <QSettings>
+#include <QMap>
+#include <QString>
+#include <QVariant>
+#include <QMutex>
+#include <QMutexLocker>
+#include <memory>
+#include <cassert>
+#include <QWidget>
+#include <QComboBox>
+#include <QCheckBox>
+#include <QDoubleSpinBox>
+#include <QSpinBox>
+#include <QSlider>
+#include <QLineEdit>
+#include <QCoreApplication>
+
+#ifdef __GNUC__
+# define ov override
+#else
+# define ov
+#endif
+
+namespace options {
+ template<typename T>
+ inline T qcruft_to_t (const QVariant& t);
+
+ 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 group {
+ private:
+ QMap<QString, QVariant> map;
+ QString name;
+ public:
+ group(const QString& name) : name(name)
+ {
+ QSettings settings(group::org);
+ QString currentFile =
+ settings.value("SettingsFile",
+ QCoreApplication::applicationDirPath() + "/settings/default.ini" ).toString();
+ QSettings iniFile(currentFile, QSettings::IniFormat);
+ iniFile.beginGroup(name);
+ for (auto& k : iniFile.childKeys())
+ map[k] = iniFile.value(k);
+ iniFile.endGroup();
+ }
+ static constexpr const char* org = "opentrack";
+ void save() {
+ QSettings settings(group::org);
+ QString currentFile =
+ settings.value("SettingsFile",
+ QCoreApplication::applicationDirPath() + "/settings/default.ini" ).toString();
+ QSettings s(currentFile, QSettings::IniFormat);
+ s.beginGroup(name);
+ for (auto& k : map.keys())
+ s.setValue(k, map[k]);
+ s.endGroup();
+ }
+ template<typename T>
+ T get(const QString& k) {
+ return qcruft_to_t<T>(map.value(k));
+ }
+
+ void put(const QString& s, const QVariant& d)
+ {
+ map[s] = d;
+ }
+ bool contains(const QString& s)
+ {
+ return map.contains(s);
+ }
+ };
+
+ class impl_bundle : public QObject {
+ Q_OBJECT
+ private:
+ QMutex mtx;
+ const QString group_name;
+ group saved;
+ group transient;
+ impl_bundle(const impl_bundle&) = delete;
+ impl_bundle& operator=(const impl_bundle&) = delete;
+ bool modified;
+ public:
+ impl_bundle(const QString& group_name) :
+ mtx(QMutex::Recursive),
+ group_name(group_name),
+ saved(group_name),
+ transient(saved),
+ modified(false)
+ {
+ }
+ /* keep in mind doesn't fire signals */
+ void reload() {
+ QMutexLocker l(&mtx);
+ saved = group(group_name);
+ transient = saved;
+ emit reloaded();
+ }
+
+ std::shared_ptr<impl_bundle> make(const QString& name) {
+ return std::make_shared<impl_bundle>(name);
+ }
+ void store(const QString& name, const QVariant& datum)
+ {
+ QMutexLocker l(&mtx);
+ if (!transient.contains(name) || datum != transient.get<QVariant>(name))
+ {
+ modified = true;
+ transient.put(name, datum);
+ emit bundleChanged();
+ }
+ }
+ bool contains(const QString& name)
+ {
+ QMutexLocker l(&mtx);
+ return transient.contains(name);
+ }
+ template<typename T>
+ T get(const QString& name) {
+ QMutexLocker l(&mtx);
+ return transient.get<T>(name);
+ }
+ void save()
+ {
+ QMutexLocker l(&mtx);
+ modified = false;
+ saved = transient;
+ transient.save();
+ }
+ void revert()
+ {
+ QMutexLocker l(&mtx);
+ modified = false;
+ transient = saved;
+ emit bundleChanged();
+ }
+
+ bool modifiedp() {
+ QMutexLocker l(&mtx);
+ return modified;
+ }
+ signals:
+ void bundleChanged();
+ void reloaded();
+ };
+
+ typedef std::shared_ptr<impl_bundle> pbundle;
+
+ class base_value : public QObject {
+ Q_OBJECT
+ public:
+ base_value(pbundle b, const QString& name) : b(b), self_name(name) {
+ connect(b.get(), SIGNAL(reloaded()), this, SLOT(reread_value()));
+ }
+ virtual QVariant operator=(const QVariant& datum) = 0;
+ protected:
+ pbundle b;
+ QString self_name;
+ public slots:
+ void reread_value()
+ {
+ this->operator=(b->get<QVariant>(self_name));
+ }
+ public slots:
+#define DEFINE_SLOT(t) void setValue(t datum) { this->operator=(datum); }
+ DEFINE_SLOT(double)
+ DEFINE_SLOT(int)
+ DEFINE_SLOT(QString)
+ DEFINE_SLOT(bool)
+ signals:
+#define DEFINE_SIGNAL(t) void valueChanged(t);
+ DEFINE_SIGNAL(double)
+ DEFINE_SIGNAL(int)
+ DEFINE_SIGNAL(QString)
+ DEFINE_SIGNAL(bool)
+ };
+
+ template<typename T>
+ class value : public base_value {
+ private: T def;
+ public:
+ static constexpr const Qt::ConnectionType CONNTYPE = Qt::QueuedConnection;
+ value(pbundle b, const QString& name, T def) :
+ base_value(b, name), def(def)
+ {
+ if (!b->contains(name))
+ {
+ QVariant cruft(def);
+ b->store(self_name, cruft);
+ }
+ }
+ operator T() { return b->get<T>(self_name); }
+ QVariant operator=(const QVariant& datum) {
+ b->store(self_name, datum);
+ auto foo = qcruft_to_t<T>(datum);
+ emit valueChanged(foo);
+ return datum;
+ }
+ };
+
+ template<typename T, typename Q>
+ inline void tie_setting(value<T>&, Q*);
+
+ template<>
+ inline void tie_setting(value<int>& v, QComboBox* cb)
+ {
+ base_value::connect(cb, SIGNAL(currentIndexChanged(int)), &v, SLOT(setValue(int)), v.CONNTYPE);
+ base_value::connect(&v, SIGNAL(valueChanged(int)), cb, SLOT(setCurrentIndex(int)), v.CONNTYPE);
+ cb->setCurrentIndex(v);
+ }
+
+ template<>
+ inline void tie_setting(value<QString>& v, QComboBox* cb)
+ {
+ base_value::connect(cb, SIGNAL(currentTextChanged(QString)), &v, SLOT(setValue(QString)), v.CONNTYPE);
+ base_value::connect(&v, SIGNAL(valueChanged(QString)), cb, SLOT(setCurrentText(QString)), v.CONNTYPE);
+ cb->setCurrentText(v);
+ }
+
+ template<>
+ inline void tie_setting(value<bool>& v, QCheckBox* cb)
+ {
+ base_value::connect(cb, SIGNAL(toggled(bool)), &v, SLOT(setValue(bool)), v.CONNTYPE);
+ base_value::connect(&v, SIGNAL(valueChanged(bool)), cb, SLOT(setChecked(bool)), v.CONNTYPE);
+ cb->setChecked(v);
+ }
+
+ template<>
+ inline void tie_setting(value<double>& v, QDoubleSpinBox* dsb)
+ {
+ base_value::connect(dsb, SIGNAL(valueChanged(double)), &v, SLOT(setValue(double)), v.CONNTYPE);
+ base_value::connect(&v, SIGNAL(valueChanged(double)), dsb, SLOT(setValue(double)), v.CONNTYPE);
+ dsb->setValue(v);
+ }
+
+ template<>
+ inline void tie_setting(value<int>& v, QSpinBox* sb)
+ {
+ base_value::connect(sb, SIGNAL(valueChanged(int)), &v, SLOT(setValue(int)), v.CONNTYPE);
+ base_value::connect(&v, SIGNAL(valueChanged(int)), sb, SLOT(setValue(int)), v.CONNTYPE);
+ sb->setValue(v);
+ }
+
+ template<>
+ inline void tie_setting(value<int>& v, QSlider* sl)
+ {
+ base_value::connect(sl, SIGNAL(valueChanged(int)), &v, SLOT(setValue(int)), v.CONNTYPE);
+ base_value::connect(&v, SIGNAL(valueChanged(int)), sl, SLOT(setValue(int)), v.CONNTYPE);
+ sl->setValue(v);
+ }
+
+ template<>
+ inline void tie_setting(value<QString>& v, QLineEdit* le)
+ {
+ base_value::connect(le, SIGNAL(textChanged(QString)), &v, SLOT(setValue(QString)), v.CONNTYPE);
+ base_value::connect(&v, SIGNAL(valueChanged(QString)),le, SLOT(setText(QString)), v.CONNTYPE);
+ le->setText(v);
+ }
+
+ inline pbundle bundle(const QString& group) {
+ return std::make_shared<impl_bundle>(group);
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 22:08:31 +0000