tb_tab_container.h

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

#ifndef TB_TAB_CONTAINER_H
#define TB_TAB_CONTAINER_H

#include "tb_widgets_common.h"

namespace tb {

class TBTabLayout : public TBLayout
{
public:
    // For safe typecasting
    TBOBJECT_SUBCLASS(TBTabLayout, TBLayout);

    virtual void OnChildAdded(TBWidget *child);
    virtual PreferredSize OnCalculatePreferredContentSize(const SizeConstraints &constraints);
};

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

    TBTabContainer();
    ~TBTabContainer();

    virtual void SetAxis(AXIS axis);
    virtual AXIS GetAxis() const { return m_root_layout.GetAxis(); }

    void SetAlignment(TB_ALIGN align);
    TB_ALIGN GetAlignment() const { return m_align; }

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

    void SetCurrentPage(int index) { SetValue(index); }
    int GetCurrentPage() { return GetValue(); }
    int GetNumPages();

    TBWidget *GetCurrentPageWidget() const;

    virtual void OnInflate(const INFLATE_INFO &info);
    virtual bool OnEvent(const TBWidgetEvent &ev);
    virtual void OnProcess();

    virtual TBWidget *GetContentRoot() { return &m_content_root; }
    TBLayout *GetTabLayout() { return &m_tab_layout; }
protected:
    TBLayout m_root_layout;
    TBTabLayout m_tab_layout;
    TBWidget m_content_root;
    bool m_need_page_update;
    int m_current_page;
    TB_ALIGN m_align;
};

};

#endif // TB_TAB_CONTAINER_H