cuesheet_index_list.cpp

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#include "stdafx.h"

#ifndef _MSC_VER
#define sprintf_s sprintf
#endif

bool t_cuesheet_index_list::is_valid() const {
    if (m_positions[1] < m_positions[0]) return false;
    for(t_size n = 2; n < count && m_positions[n] > 0; n++) {
        if (m_positions[n] < m_positions[n-1]) return false;
    }
    return true;
}

void t_cuesheet_index_list::to_infos(file_info & p_out) const
{
    double base = m_positions[1];

    if (base > 0) {
        p_out.info_set("referenced_offset",cuesheet_format_index_time(base));
    }
    
    if (m_positions[0] < base)
        p_out.info_set("pregap",cuesheet_format_index_time(base - m_positions[0]));
    else
        p_out.info_remove("pregap");

    p_out.info_remove("index 00");  
    p_out.info_remove("index 01");
    
    for(unsigned n=2;n<count;n++)
    {
        char namebuffer[16];
        sprintf_s(namebuffer,"index %02u",n);
        double position = m_positions[n] - base;
        if (position > 0)
            p_out.info_set(namebuffer,cuesheet_format_index_time(position));
        else
            p_out.info_remove(namebuffer);
    }
}

static bool parse_value(const char * p_name,double & p_out)
{
    if (p_name == NULL) return false;
    try {
        p_out = cuesheet_parse_index_time_e(p_name,strlen(p_name));
    } catch(std::exception const &) {return false;}
    return true;
}

bool t_cuesheet_index_list::from_infos(file_info const & p_in,double p_base)
{
    double pregap;
    bool found = false;
    if (!parse_value(p_in.info_get("pregap"),pregap)) pregap = 0;
    else found = true;
    m_positions[0] = p_base - pregap;
    m_positions[1] = p_base;
    for(unsigned n=2;n<count;n++)
    {
        char namebuffer[16];
        sprintf_s(namebuffer,"index %02u",n);
        double temp;
        if (parse_value(p_in.info_get(namebuffer),temp)) {
            m_positions[n] = temp + p_base; found = true;
        } else {
            m_positions[n] = 0;
        }
    }
    return found;   
}

bool t_cuesheet_index_list::is_empty() const {
    for(unsigned n=0;n<count;n++) if (m_positions[n] != m_positions[1]) return false;
    return true;
}