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// K-3D
// Copyright (c) 1995-2004, Timothy M. Shead
//
// Contact: tshead@k-3d.com
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
/** \file
\brief Implements the k3d::frames class for working with ranges of numbered files
\author Timothy M. Shead (tshead@k-3d.com)
*/
#include "frames.h"
#include "result.h"
#include "string_modifiers.h"
#include <boost/filesystem/operations.hpp>
#include <cmath>
#include <iomanip>
namespace k3d
{
/////////////////////////////////////////////////////////////////////////////
// frames
frames::frames(const boost::filesystem::path& File)
{
// Sanity checks ...
assert_warning(!File.empty());
std::string::size_type index;
std::string buffer(File.native_file_string());
// Get the post-digits string ...
index = buffer.find_last_of("0123456789");
if(std::string::npos != index)
{
m_post_digits = k3d::right(buffer, buffer.size() - (index+1));
buffer = buffer.substr(0, index+1);
}
// Get the post-digit
index = buffer.find_last_not_of("0123456789");
if(std::string::npos != index)
{
m_frame_digits = buffer.size() - (index+1);
m_pre_digits = buffer.substr(0, index+1);
}
else
{
m_frame_digits = buffer.size();
}
// Find the first available frame ...
long maxframe = max_frame();
for(long i = 0; i < maxframe; i++)
{
boost::filesystem::path file;
frame(i, file);
if(boost::filesystem::exists(file))
{
m_first_frame = i;
break;
}
}
// Find the last available frame ...
for(long j = m_first_frame + 1; j < maxframe; j++)
{
boost::filesystem::path file;
frame(j, file);
if(!boost::filesystem::exists(file))
{
m_last_frame = j - 1;
break;
}
}
}
frames::frames(const boost::filesystem::path& File, const long FirstFrame, const long LastFrame) :
m_first_frame(FirstFrame),
m_last_frame(LastFrame)
{
// Sanity checks ...
assert_warning(!File.empty());
std::string::size_type index;
std::string buffer(File.native_file_string());
// Get the post-digits string ...
index = buffer.find_last_of("0123456789");
if(std::string::npos != index)
{
m_post_digits = k3d::right(buffer, buffer.size() - (index+1));
buffer = buffer.substr(0, index+1);
}
// Get the digits ...
index = buffer.find_last_not_of("0123456789");
if(std::string::npos != index)
{
m_frame_digits = buffer.size() - (index+1);
m_pre_digits = buffer.substr(0, index+1);
}
else
{
m_frame_digits = buffer.size();
}
}
frames::frames(const std::string PreDigits, const std::string PostDigits, const long FirstFrame, const long LastFrame, const long FrameDigits) :
m_pre_digits(PreDigits),
m_post_digits(PostDigits),
m_first_frame(FirstFrame),
m_last_frame(LastFrame),
m_frame_digits(FrameDigits)
{
// Sanity checks ...
assert_warning(FirstFrame <= LastFrame);
assert_warning(FrameDigits);
}
bool frames::frame(const long FrameNumber, boost::filesystem::path& Result) const
{
// Sanity checks ...
return_val_if_fail(FrameNumber <= max_frame(), false);
std::stringstream buffer;
buffer << m_pre_digits << std::setfill('0') << std::setw(m_frame_digits) << k3d::to_string(FrameNumber) << m_post_digits;
Result = boost::filesystem::path(buffer.str(), boost::filesystem::native);
return true;
}
long frames::max_frame() const
{
return long(pow(10, m_frame_digits) - 1);
}
const std::string& frames::pre_digits() const
{
return m_pre_digits;
}
const std::string& frames::post_digits() const
{
return m_post_digits;
}
const unsigned long frames::frame_digits() const
{
return m_frame_digits;
}
long frames::first_frame() const
{
return m_first_frame;
}
long frames::last_frame() const
{
return m_last_frame;
}
} // namespace k3d
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