StelPropertyMgr.hpp

/*
 * Copyright (C) 2015-2016 Florian Schaukowitsch
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335, USA.
 */

#ifndef _STELPROPERTYMGR_HPP_
#define _STELPROPERTYMGR_HPP_

#include <QObject>
#include <QSet>
#include <QMetaProperty>

class StelProperty;

class StelPropertyProxy : public QObject
{
    Q_OBJECT
public:
    StelPropertyProxy(StelProperty* prop,QObject* parent);

protected slots:
    virtual void onPropertyChanged(const QVariant& value) = 0;

protected:
    StelProperty* prop;
};

class StelPropertyIntProxy : public StelPropertyProxy
{
    Q_OBJECT
public:
    StelPropertyIntProxy(StelProperty* prop,QObject* parent);
protected slots:
    void onPropertyChanged(const QVariant &value) Q_DECL_OVERRIDE;
signals:
    void propertyChanged(int value);
};

class StelPropertyBoolProxy : public StelPropertyProxy
{
    Q_OBJECT
public:
    StelPropertyBoolProxy(StelProperty* prop,QObject* parent);
protected slots:
    void onPropertyChanged(const QVariant &value) Q_DECL_OVERRIDE;
signals:
    void propertyChanged(bool value);
};

class StelPropertyDoubleProxy : public StelPropertyProxy
{
    Q_OBJECT
public:
    StelPropertyDoubleProxy(StelProperty* prop,QObject* parent);
protected slots:
    void onPropertyChanged(const QVariant &value) Q_DECL_OVERRIDE;
signals:
    void propertyChanged(double value);
};


class StelProperty : public QObject
{
    friend class StelPropertyMgr;
    Q_OBJECT

public slots:
    QString getId() const { return id; }

    QVariant getValue() const;

    bool setValue(const QVariant& value) const;

    bool isReadOnly() const;

    bool canNotify() const;

    QMetaType::Type getType() const;

    QMetaProperty getMetaProp() const { return prop; }

    QObject* getTarget() const { return target; }
signals:
    void changed(const QVariant& newValue);
protected slots:
    void propertyChanged();
protected:
    StelProperty(const QString& id,QObject* target, const QMetaProperty& prop);

    QString id;
    QObject* target;
    QMetaProperty prop;
};

class StelPropertyMgr : public QObject
{
    Q_OBJECT
public:
    typedef QMap<QString,StelProperty*> StelPropertyMap;

    StelPropertyMgr();
    ~StelPropertyMgr();

    StelProperty* registerProperty(const QString& id, QObject* target, const char* propertyName);

    void registerObject(QObject *obj);

    QStringList getPropertyList() const;
    QList<StelProperty*> getAllProperties() const;
    const StelPropertyMap& getPropertyMap() const { return propMap; }

    StelProperty* getProperty(const QString& id) const;

    QVariant getStelPropertyValue(const QString& id) const;
    bool setStelPropertyValue(const QString& id, const QVariant &value) const;
    QMetaProperty getMetaProperty(const QString& id) const;
private slots:
    void onStelPropChanged(const QVariant& val);
signals:
    void stelPropChanged(const QString& id, const QVariant& value);
private:
    StelProperty* registerProperty(const QString &id, QObject *target, const QMetaProperty& prop);

    QMap<QString,QObject*> registeredObjects;
    StelPropertyMap propMap;
};

#endif