tb_system.h

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

#ifndef TB_SYSTEM_H
#define TB_SYSTEM_H

#include "tb_core.h"
#include "tb_str.h"

namespace tb {

// == Platform interface ===================================================

class TBSystem
{
public:
    static double GetTimeMS();

    static void RescheduleTimer(double fire_time);

    static int GetLongClickDelayMS();

    static int GetPanThreshold();

    static int GetPixelsPerLine();

    static int GetDPI();

    static void SetDPI(int dpi);
    
private:
    static int _dpi; //< the current dpi value
};

class TBClipboard
{
public:
    static void Empty();

    static bool HasText();

    static bool SetText(const TBStr & text);

    static bool GetText(TBStr &text);
};

class TBFile
{
public:
    enum TBFileMode { MODE_READ, MODE_WRITETRUNC };
    static TBFile *Open(const TBStr & filename, TBFileMode mode);

    virtual ~TBFile() {}
    virtual long Size() = 0;
    virtual size_t Read(void *buf, size_t elemSize, size_t count) = 0;
    virtual size_t Write(const void *buf, size_t elemSize, size_t count) = 0;
    virtual size_t Write(const TBStr & str) = 0;
};

} // namespace tb

#endif // TB_SYSTEM_H