SCR_ByteFormat.c

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/*
Useful functions to handle byte size formatting
*/
 
class SCR_ByteFormat
{
    const static float BYTE_UNIT_SIZE = 1024.0;
    
    const static string FORMAT_B ="#AR-DataSize_B";
    const static string FORMAT_KB ="#AR-DataSize_kB";
    const static string FORMAT_MB ="#AR-DataSize_MB";
    const static string FORMAT_GB = "#AR-DataSize_GB";
    
    //------------------------------------------------------------------------------------------------
    static string ReadableSizeFromBytes(out float value, int decimals = 1)
    {
        const int safeCount = 4;
        int count = 0;
        
        float valCheck = value;
        
        while (value > BYTE_UNIT_SIZE && count < safeCount)
        {
            value /= BYTE_UNIT_SIZE;
            count++;
        }
        
        // Cut last 1000 
        if (value * 0.001 > 1)
        {
            value *= 0.001;
            count++;
        }
        
        valCheck = value;
        
        // First decimal place
        if (decimals > 0)
        {
            float dec = Math.Pow(10, decimals);
            float valueMult10 = Math.Ceil(value * dec);
            
            if (valueMult10 <= dec)
                value = valueMult10 / dec;
            else        
                value = valueMult10 / dec;
        }
        
        // Add proper metrics 
        switch (count)
        {
            // byte
            case 0: return FORMAT_B; break;
            
            // kilo
            case 1: return FORMAT_KB; break;
            
            // mega
            case 2: return FORMAT_MB; break;
            
            // giga
            case 3: return FORMAT_GB; break;    
        }
        
        return "";
    }
    
    
    //------------------------------------------------------------------------------------------------
    static string GetReadableSize(float value, int decimals = 1)
    {
        string unit = SCR_ByteFormat.ReadableSizeFromBytes(value, decimals); // format %1 unit  
        return WidgetManager.Translate(unit, value);
    }
    
    //------------------------------------------------------------------------------------------------
    static string GetReadableSizeMb(float value)
    {
        float mb = 1024.0*1024.0;
        float sizeMb = value / mb;
        
        if (sizeMb < 1.0)
        {
            int sizeMbMult10 = Math.Ceil(sizeMb * 10.0);
            
            if (sizeMbMult10 <= 10)
                sizeMb = sizeMbMult10 / 10;
            
            return WidgetManager.Translate(FORMAT_MB, sizeMb);
        }
        else
            return  WidgetManager.Translate(FORMAT_MB, Math.Round(sizeMb));
    }
    
    //------------------------------------------------------------------------------------------------
    static string ContentDownloadFormat(float value)
    {
        string unit = SCR_ByteFormat.ReadableSizeFromBytes(value, 3);
        string size = value.ToString();
        
        int dec = 3;
        
        if (unit != SCR_ByteFormat.FORMAT_GB)
            dec = 1;
 
        size = value.ToString(-1, dec);
        return  WidgetManager.Translate(unit, size);
    }
};