widget.h

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/*
    This library 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 2.1 of the License, or (at your option) any later version.

    This library 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 this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

// intrusive_ptr<Panel> needs to know that Panel inherits from RefCountable so include its definition
#include <omgui/panel.h>

#ifndef OMGUI_INITIALIZER_WIDGET_H
#define OMGUI_INITIALIZER_WIDGET_H

#include <omgui/dllimpexp.h>
#include <omgui/types.h>

namespace omgui {
    class Panel;
    class Widget;
    namespace initializer {

struct OMGUI_API WidgetData
{
protected:
    omgui::Size m_min_size;

    omgui::Size m_max_size;

    omgui::Size m_natural_size;

    Pointer<omgui::Panel> m_parent;

    bool m_show;

    bool m_activate;

    bool m_enable;

public:
    WidgetData();
    virtual ~WidgetData();

    void set_min_size(const omgui::Size &s);
    omgui::Size get_min_size() const;
    void set_max_size(const omgui::Size &s);
    omgui::Size get_max_size() const;
    void set_natural_size(const omgui::Size &s);
    omgui::Size get_natural_size() const;
    void set_parent(const Pointer<omgui::Panel> &p);
    Pointer<omgui::Panel> get_parent() const;
    void set_show(bool b);
    bool get_show() const;
    void set_activate(bool b);
    bool get_activate() const;
    void set_enable(bool b);
    bool get_enable() const;
};

template<class T> class Widget
{
public:
    typedef WidgetData data_type;

protected:
    data_type *m_data;

    Widget(data_type *data)
        : m_data(data)
    { }

    virtual ~Widget() { delete m_data; }

public:
    T &parent(const Pointer<omgui::Panel> &p)
    {
        m_data->set_parent(p);
        return static_cast<T&>(*this);
    }

    T &show(bool s = true)
    {
        m_data->set_show(s);
        return static_cast<T&>(*this);
    }

    T &activate(bool a = true)
    {
        m_data->set_activate(a);
        return static_cast<T&>(*this);
    }

    T &hide()
    {
        m_data->set_show(false);
        return static_cast<T&>(*this);
    }

    T &enable(bool s = true)
    {
        m_data->set_enable(s);
        return static_cast<T&>(*this);
    }

    T &disable()
    {
        m_data->set_enable(false);
        return static_cast<T&>(*this);
    }

    T &min_size(const omgui::Size &s)
    {
        m_data->set_min_size(s);
        return static_cast<T&>(*this);
    }

    T &max_size(const omgui::Size &s)
    {
        m_data->set_max_size(s);
        return static_cast<T&>(*this);
    }

    T &natural_size(const omgui::Size &s)
    {
        m_data->set_natural_size(s);
        return static_cast<T&>(*this);
    }

    omgui::Size get_min_size() const { return m_data->get_min_size(); }
    omgui::Size get_max_size() const { return m_data->get_max_size(); }
    omgui::Size get_natural_size() const { return m_data->get_natural_size(); }
    Pointer<omgui::Panel> get_parent() const { return m_data->get_parent(); }
    bool get_show() const { return m_data->get_show(); }
    bool get_enable() const { return m_data->get_enable(); }
    bool get_activate() const { return m_data->get_activate(); }

private:
    // non assignable
    Widget<T> &operator= (const Widget<T> &);
};

    } // initializer
} // omgui

#endif // OMGUI_INITIALIZER_WIDGET_H

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