mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-09-20 06:49:56 +00:00
437 lines
9.7 KiB
C++
437 lines
9.7 KiB
C++
/**
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* \file Session.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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* \author Bo Peng
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "Session.h"
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#include "support/debug.h"
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#include "support/filetools.h"
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#include "support/Package.h"
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#include <fstream>
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#include <sstream>
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#include <algorithm>
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#include <iterator>
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using namespace std;
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using namespace lyx::support;
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namespace {
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string const sec_lastfiles = "[recent files]";
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string const sec_lastfilepos = "[cursor positions]";
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string const sec_lastopened = "[last opened files]";
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string const sec_bookmarks = "[bookmarks]";
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string const sec_session = "[session info]";
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string const sec_toolbars = "[toolbars]";
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string const sec_lastcommands = "[last commands]";
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} // anon namespace
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namespace lyx {
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LastFilesSection::LastFilesSection(unsigned int num) :
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default_num_last_files(4),
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absolute_max_last_files(100)
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{
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setNumberOfLastFiles(num);
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}
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void LastFilesSection::read(istream & is)
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{
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string tmp;
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do {
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char c = is.peek();
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if (c == '[')
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break;
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getline(is, tmp);
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if (tmp.empty() || tmp[0] == '#' || tmp[0] == ' ' || !FileName::isAbsolute(tmp))
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continue;
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// read lastfiles
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FileName const file(tmp);
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if (file.exists() && !file.isDirectory()
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&& lastfiles.size() < num_lastfiles)
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lastfiles.push_back(file);
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else
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LYXERR(Debug::INIT, "LyX: Warning: Ignore last file: " << tmp);
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} while (is.good());
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}
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void LastFilesSection::write(ostream & os) const
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{
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os << '\n' << sec_lastfiles << '\n';
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copy(lastfiles.begin(), lastfiles.end(),
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ostream_iterator<FileName>(os, "\n"));
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}
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void LastFilesSection::add(FileName const & file)
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{
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// If file already exist, delete it and reinsert at front.
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LastFiles::iterator it = find(lastfiles.begin(), lastfiles.end(), file);
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if (it != lastfiles.end())
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lastfiles.erase(it);
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lastfiles.insert(lastfiles.begin(), file);
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if (lastfiles.size() > num_lastfiles)
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lastfiles.pop_back();
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}
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void LastFilesSection::setNumberOfLastFiles(unsigned int no)
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{
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if (0 < no && no <= absolute_max_last_files)
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num_lastfiles = no;
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else {
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LYXERR(Debug::INIT, "LyX: session: too many last files\n"
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<< "\tdefault (=" << default_num_last_files << ") used.");
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num_lastfiles = default_num_last_files;
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}
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}
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void LastOpenedSection::read(istream & is)
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{
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string tmp;
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do {
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char c = is.peek();
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if (c == '[')
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break;
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getline(is, tmp);
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if (tmp.empty() || tmp[0] == '#' || tmp[0] == ' ')
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continue;
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try {
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LastOpenedFile lof;
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istringstream itmp(tmp);
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itmp >> lof.active;
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itmp.ignore(2); // ignore ", "
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string fname;
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getline(itmp, fname);
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if (!FileName::isAbsolute(fname))
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continue;
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FileName const file(fname);
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if (file.exists() && !file.isDirectory()) {
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lof.file_name = file;
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lastopened.push_back(lof);
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} else {
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LYXERR(Debug::INIT,
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"LyX: Warning: Ignore last opened file: " << tmp);
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}
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} catch (...) {
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LYXERR(Debug::INIT,
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"LyX: Warning: unknown state of last opened file: " << tmp);
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}
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} while (is.good());
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}
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void LastOpenedSection::write(ostream & os) const
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{
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os << '\n' << sec_lastopened << '\n';
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for (size_t i = 0; i < lastopened.size(); ++i)
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os << lastopened[i].active << ", " << lastopened[i].file_name << '\n';
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}
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void LastOpenedSection::add(FileName const & file, bool active)
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{
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LastOpenedFile lof(file, active);
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lastopened.push_back(lof);
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}
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void LastOpenedSection::clear()
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{
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lastopened.clear();
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}
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void LastFilePosSection::read(istream & is)
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{
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string tmp;
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do {
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char c = is.peek();
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if (c == '[')
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break;
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getline(is, tmp);
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if (tmp == "" || tmp[0] == '#' || tmp[0] == ' ')
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continue;
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try {
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// read lastfilepos
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// pos, file\n
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FilePos filepos;
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string fname;
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istringstream itmp(tmp);
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itmp >> filepos.pit;
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itmp.ignore(2); // ignore ", "
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itmp >> filepos.pos;
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itmp.ignore(2); // ignore ", "
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getline(itmp, fname);
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if (!FileName::isAbsolute(fname))
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continue;
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FileName const file(fname);
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if (file.exists() && !file.isDirectory()
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&& lastfilepos.size() < num_lastfilepos)
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lastfilepos[file] = filepos;
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else
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LYXERR(Debug::INIT, "LyX: Warning: Ignore pos of last file: " << fname);
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} catch (...) {
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LYXERR(Debug::INIT, "LyX: Warning: unknown pos of last file: " << tmp);
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}
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} while (is.good());
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}
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void LastFilePosSection::write(ostream & os) const
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{
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os << '\n' << sec_lastfilepos << '\n';
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for (FilePosMap::const_iterator file = lastfilepos.begin();
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file != lastfilepos.end(); ++file) {
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os << file->second.pit << ", " << file->second.pos << ", "
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<< file->first << '\n';
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}
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}
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void LastFilePosSection::save(FileName const & fname, FilePos const & pos)
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{
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lastfilepos[fname] = pos;
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}
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LastFilePosSection::FilePos LastFilePosSection::load(FileName const & fname) const
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{
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FilePosMap::const_iterator entry = lastfilepos.find(fname);
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// Has position information, return it.
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if (entry != lastfilepos.end())
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return entry->second;
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// Not found, return the first paragraph
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return FilePos();
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}
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void BookmarksSection::clear()
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{
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// keep bookmark[0], the temporary one
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bookmarks.resize(1);
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bookmarks.resize(max_bookmarks + 1);
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}
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void BookmarksSection::read(istream & is)
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{
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string tmp;
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do {
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char c = is.peek();
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if (c == '[')
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break;
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getline(is, tmp);
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if (tmp == "" || tmp[0] == '#' || tmp[0] == ' ')
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continue;
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try {
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// read bookmarks
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// idx, pit, pos, file\n
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unsigned int idx;
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pit_type pit;
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pos_type pos;
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string fname;
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istringstream itmp(tmp);
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itmp >> idx;
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itmp.ignore(2); // ignore ", "
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itmp >> pit;
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itmp.ignore(2); // ignore ", "
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itmp >> pos;
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itmp.ignore(2); // ignore ", "
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getline(itmp, fname);
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if (!FileName::isAbsolute(fname))
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continue;
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FileName const file(fname);
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// only load valid bookmarks
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if (file.exists() && !file.isDirectory() && idx <= max_bookmarks)
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bookmarks[idx] = Bookmark(file, pit, pos, 0, 0);
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else
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LYXERR(Debug::INIT, "LyX: Warning: Ignore bookmark of file: " << fname);
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} catch (...) {
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LYXERR(Debug::INIT, "LyX: Warning: unknown Bookmark info: " << tmp);
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}
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} while (is.good());
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}
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void BookmarksSection::write(ostream & os) const
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{
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os << '\n' << sec_bookmarks << '\n';
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for (size_t i = 0; i <= max_bookmarks; ++i) {
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if (isValid(i))
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os << i << ", "
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<< bookmarks[i].bottom_pit << ", "
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<< bookmarks[i].bottom_pos << ", "
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<< bookmarks[i].filename << '\n';
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}
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}
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void BookmarksSection::save(FileName const & fname,
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pit_type bottom_pit, pos_type bottom_pos,
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int top_id, pos_type top_pos, unsigned int idx)
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{
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// silently ignore bookmarks when idx is out of range
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if (idx <= max_bookmarks)
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bookmarks[idx] = Bookmark(fname, bottom_pit, bottom_pos, top_id, top_pos);
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}
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bool BookmarksSection::isValid(unsigned int i) const
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{
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return i <= max_bookmarks && !bookmarks[i].filename.empty();
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}
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bool BookmarksSection::hasValid() const
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{
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for (size_t i = 1; i <= size(); ++i) {
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if (isValid(i))
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return true;
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}
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return false;
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}
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BookmarksSection::Bookmark const & BookmarksSection::bookmark(unsigned int i) const
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{
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return bookmarks[i];
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}
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LastCommandsSection::LastCommandsSection(unsigned int num) :
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default_num_last_commands(30),
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absolute_max_last_commands(100)
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{
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setNumberOfLastCommands(num);
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}
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void LastCommandsSection::read(istream & is)
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{
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string tmp;
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do {
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char c = is.peek();
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if (c == '[')
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break;
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getline(is, tmp);
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if (tmp == "" || tmp[0] == '#' || tmp[0] == ' ')
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continue;
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lastcommands.push_back(tmp);
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} while (is.good());
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}
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void LastCommandsSection::write(ostream & os) const
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{
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os << '\n' << sec_lastcommands << '\n';
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copy(lastcommands.begin(), lastcommands.end(),
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ostream_iterator<std::string>(os, "\n"));
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}
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void LastCommandsSection::setNumberOfLastCommands(unsigned int no)
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{
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if (0 < no && no <= absolute_max_last_commands)
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num_lastcommands = no;
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else {
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LYXERR(Debug::INIT, "LyX: session: too many last commands\n"
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<< "\tdefault (=" << default_num_last_commands << ") used.");
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num_lastcommands = default_num_last_commands;
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}
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}
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void LastCommandsSection::add(std::string const & string)
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{
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lastcommands.push_back(string);
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}
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void LastCommandsSection::clear()
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{
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lastcommands.clear();
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}
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Session::Session(unsigned int num_last_files, unsigned int num_last_commands) :
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last_files(num_last_files), last_commands(num_last_commands)
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{
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// locate the session file
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// note that the session file name 'session' is hard-coded
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session_file = FileName(addName(package().user_support().absFileName(), "session"));
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//
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readFile();
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}
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void Session::readFile()
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{
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// we will not complain if we can't find session_file nor will
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// we issue a warning. (Lgb)
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ifstream is(session_file.toFilesystemEncoding().c_str());
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string tmp;
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while (getline(is, tmp)) {
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// Ignore comments, empty line or line stats with ' '
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if (tmp == "" || tmp[0] == '#' || tmp[0] == ' ')
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continue;
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// Determine section id
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if (tmp == sec_lastfiles)
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lastFiles().read(is);
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else if (tmp == sec_lastopened)
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lastOpened().read(is);
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else if (tmp == sec_lastfilepos)
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lastFilePos().read(is);
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else if (tmp == sec_bookmarks)
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bookmarks().read(is);
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else if (tmp == sec_lastcommands)
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lastCommands().read(is);
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else
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LYXERR(Debug::INIT, "LyX: Warning: unknown Session section: " << tmp);
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}
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}
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void Session::writeFile() const
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{
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ofstream os(session_file.toFilesystemEncoding().c_str());
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if (os) {
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os << "## Automatically generated lyx session file \n"
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<< "## Editing this file manually may cause lyx to crash.\n";
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lastFiles().write(os);
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lastOpened().write(os);
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lastFilePos().write(os);
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lastCommands().write(os);
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bookmarks().write(os);
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} else
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LYXERR(Debug::INIT, "LyX: Warning: unable to save Session: "
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<< session_file);
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}
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}
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