tb_toggle_container.h

// ================================================================================
// ==      This file is a part of Turbo Badger. (C) 2011-2014, Emil Segerås      ==
// ==                     See tb_core.h for more information.                    ==
// ================================================================================

#ifndef TB_TOGGLE_CONTAINER_H
#define TB_TOGGLE_CONTAINER_H

#include "tb_widgets_common.h"

namespace tb {

class TBToggleContainer : public TBWidget
{
public:
    // For safe typecasting
    TBOBJECT_SUBCLASS(TBToggleContainer, TBWidget);

    TBToggleContainer();

    enum TOGGLE {
        TOGGLE_NOTHING,     
        TOGGLE_ENABLED,     
        TOGGLE_OPACITY,     
        TOGGLE_EXPANDED     
    };

    void SetToggle(TOGGLE toggle);
    TOGGLE GetToggle() const { return m_toggle; }

    void SetInvert(bool invert);
    bool GetInvert() const { return m_invert; }

    bool GetIsOn() const { return m_invert ? !m_value : !!m_value; }

    virtual void SetValue(long value);
    virtual long GetValue() const { return m_value; }

    virtual void OnInflate(const INFLATE_INFO &info);
private:
    void UpdateInternal();
    TOGGLE m_toggle;
    bool m_invert;
    int m_value;
};

class TBSectionHeader : public TBButton
{
public:
    // For safe typecasting
    TBOBJECT_SUBCLASS(TBSectionHeader, TBButton);

    TBSectionHeader();

    virtual bool OnEvent(const TBWidgetEvent &ev);
};

class TBSection : public TBWidget
{
public:
    // For safe typecasting
    TBOBJECT_SUBCLASS(TBSection, TBWidget);

    TBSection();
    ~TBSection();

    TBLayout *GetLayout() { return &m_layout; }
    TBSectionHeader *GetHeader() { return &m_header; }
    TBToggleContainer *GetContainer() { return &m_toggle_container; }

    void SetPendingScrollIntoView(bool pending_scroll) { m_pending_scroll = pending_scroll; }

    virtual bool SetText(const TBStr & text) { return m_header.SetText(text); }
    virtual bool GetText(TBStr &text) const { return m_header.GetText(text); }
    using TBWidget::GetText; 

    virtual void SetValue(long value);
    virtual long GetValue() const { return m_toggle_container.GetValue(); }

    virtual TBWidget *GetContentRoot() { return m_toggle_container.GetContentRoot(); }
    virtual void OnProcessAfterChildren();

    virtual PreferredSize OnCalculatePreferredSize(const SizeConstraints &constraints);
private:
    TBLayout m_layout;
    TBSectionHeader m_header;
    TBToggleContainer m_toggle_container;
    bool m_pending_scroll;
};

} // namespace tb

#endif // TB_TOGGLE_CONTAINER_H