9b44f92235
Now that all the other junk is being dropped from the file, script info lines are the only thing left which was a concrete AssEntry, and AssEntry wasn't actually a very good way to store them.
167 lines
4.8 KiB
C++
167 lines
4.8 KiB
C++
// Copyright (c) 2006, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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/// @file ass_attachment.cpp
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/// @brief Manage files embedded in subtitles
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/// @ingroup subs_storage
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///
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#include "config.h"
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#include <wx/filename.h>
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#include <istream>
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#include "ass_attachment.h"
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#include "compat.h"
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#include <libaegisub/io.h>
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#include <libaegisub/scoped_ptr.h>
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AssAttachment::AssAttachment(wxString const& name, AssEntryGroup group)
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: data(new std::vector<char>)
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, filename(name)
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, group(group)
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{
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wxFileName fname(filename);
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wxString ext = fname.GetExt().Lower();
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if (ext == "ttf")
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filename = fname.GetName() + "_0." + ext;
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}
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AssEntry *AssAttachment::Clone() const {
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AssAttachment *clone = new AssAttachment(filename, group);
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clone->data = data;
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return clone;
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}
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const wxString AssAttachment::GetEntryData() const {
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size_t pos = 0;
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size_t size = data->size();
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size_t written = 0;
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unsigned char src[3];
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unsigned char dst[4];
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// Write header
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wxString entryData = (group == ENTRY_FONT ? "fontname: " : "filename: ") + filename + "\r\n";
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// Read three bytes
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while (pos < size) {
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// Number to read
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size_t read = size - pos;
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if (read > 3) read = 3;
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// Read source
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src[0] = (*data)[pos];
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if (read >= 2) src[1] = (*data)[pos+1];
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else src[1] = 0;
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if (read == 3) src[2] = (*data)[pos+2];
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else src[2] = 0;
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pos += read;
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// Codify
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dst[0] = src[0] >> 2;
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dst[1] = ((src[0] & 0x3) << 4) | ((src[1] & 0xF0) >> 4);
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dst[2] = ((src[1] & 0xF) << 2) | ((src[2] & 0xC0) >> 6);
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dst[3] = src[2] & 0x3F;
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// Number to write
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size_t toWrite = read+1;
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// Convert to text
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for (size_t i=0;i<toWrite;i++) {
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entryData += dst[i]+33;
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written++;
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// Line break
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if (written == 80 && pos < size) {
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written = 0;
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entryData += "\r\n";
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}
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}
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}
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return entryData;
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}
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void AssAttachment::Extract(wxString const& filename) const {
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agi::io::Save(STD_STR(filename), true).Get().write(&(*data)[0], data->size());
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}
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void AssAttachment::Import(wxString const& filename) {
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agi::scoped_ptr<std::istream> file(agi::io::Open(STD_STR(filename), true));
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file->seekg(0, std::ios::end);
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data->resize(file->tellg());
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file->seekg(0, std::ios::beg);
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file->read(&(*data)[0], data->size());
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}
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wxString AssAttachment::GetFileName(bool raw) const {
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if (raw || filename.Right(4).Lower() != ".ttf") return filename;
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// Remove stuff after last underscore if it's a font
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wxString::size_type last_under = filename.rfind('_');
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if (last_under == wxString::npos)
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return filename;
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return filename.Left(last_under) + ".ttf";
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}
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void AssAttachment::Finish() {
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// Source and dest buffers
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unsigned char src[4];
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unsigned char dst[3];
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data->reserve(buffer.size() * 3 / 4);
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// Read buffer
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for(size_t pos = 0; pos + 1 < buffer.size(); ) {
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// Find characters left
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size_t read = std::min<size_t>(buffer.size() - pos, 4);
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// Move 4 bytes from buffer to src
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for (size_t i = 0; i < read; ++i)
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src[i] = (unsigned char)buffer[pos++] - 33;
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for (size_t i = read; i < 4; ++i)
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src[i] = 0;
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// Convert the 4 bytes from source to 3 in dst
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dst[0] = (src[0] << 2) | (src[1] >> 4);
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dst[1] = ((src[1] & 0xF) << 4) | (src[2] >> 2);
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dst[2] = ((src[2] & 0x3) << 6) | (src[3]);
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// Push into vector
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copy(dst, dst + read - 1, back_inserter(*data));
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}
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// Clear buffer
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buffer.clear();
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buffer.Shrink();
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}
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