lyx_mirror/src/bufferlist.C
Angus Leeming b5589bf6cf The package reworking.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@9463 a592a061-630c-0410-9148-cb99ea01b6c8
2005-01-10 19:17:43 +00:00

398 lines
8.2 KiB
C

/**
* \file bufferlist.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "bufferlist.h"
#include "author.h"
#include "buffer.h"
#include "bufferparams.h"
#include "debug.h"
#include "gettext.h"
#include "lastfiles.h"
#include "lyx_cb.h"
#include "lyx_main.h"
#include "output_latex.h"
#include "paragraph.h"
#include "ParagraphList_fwd.h"
#include "frontends/Alert.h"
#include "support/filetools.h"
#include "support/package.h"
#include <boost/bind.hpp>
#include <algorithm>
#include <functional>
using lyx::support::AddName;
using lyx::support::bformat;
using lyx::support::MakeAbsPath;
using lyx::support::MakeDisplayPath;
using lyx::support::OnlyFilename;
using lyx::support::removeAutosaveFile;
using lyx::support::package;
using lyx::support::prefixIs;
using boost::bind;
using std::auto_ptr;
using std::endl;
using std::equal_to;
using std::find;
using std::find_if;
using std::for_each;
using std::string;
using std::vector;
using std::back_inserter;
using std::transform;
BufferList::BufferList()
{}
bool BufferList::empty() const
{
return bstore.empty();
}
bool BufferList::quitWriteBuffer(Buffer * buf)
{
BOOST_ASSERT(buf);
string file;
if (buf->isUnnamed())
file = OnlyFilename(buf->fileName());
else
file = MakeDisplayPath(buf->fileName(), 30);
string const text =
bformat(_("The document %1$s has unsaved changes.\n\n"
"Do you want to save the document or discard the changes?"), file);
int const ret = Alert::prompt(_("Save changed document?"),
text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
if (ret == 0) {
// FIXME: WriteAs can be asynch !
// but not right now...maybe we should remove that
bool succeeded;
if (buf->isUnnamed())
succeeded = WriteAs(buf);
else
succeeded = MenuWrite(buf);
if (!succeeded)
return false;
} else if (ret == 1) {
// if we crash after this we could
// have no autosave file but I guess
// this is really inprobable (Jug)
if (buf->isUnnamed())
removeAutosaveFile(buf->fileName());
} else {
return false;
}
return true;
}
bool BufferList::quitWriteAll()
{
BufferStorage::iterator it = bstore.begin();
BufferStorage::iterator end = bstore.end();
for (; it != end; ++it) {
if ((*it)->isClean())
continue;
if (!quitWriteBuffer(*it))
return false;
}
return true;
}
void BufferList::release(Buffer * buf)
{
BOOST_ASSERT(buf);
BufferStorage::iterator const it =
find(bstore.begin(), bstore.end(), buf);
if (it != bstore.end()) {
Buffer * tmp = (*it);
BOOST_ASSERT(tmp);
bstore.erase(it);
delete tmp;
}
}
Buffer * BufferList::newBuffer(string const & s, bool const ronly)
{
auto_ptr<Buffer> tmpbuf(new Buffer(s, ronly));
tmpbuf->params().useClassDefaults();
lyxerr[Debug::INFO] << "Assigning to buffer "
<< bstore.size() << endl;
bstore.push_back(tmpbuf.get());
return tmpbuf.release();
}
void BufferList::closeAll()
{
while (!bstore.empty()) {
close(bstore.front(), false);
}
}
bool BufferList::close(Buffer * buf, bool const ask)
{
BOOST_ASSERT(buf);
// FIXME: is the quitting check still necessary ?
if (!ask || buf->isClean() || quitting || buf->paragraphs().empty()) {
release(buf);
return true;
}
string fname;
if (buf->isUnnamed())
fname = OnlyFilename(buf->fileName());
else
fname = MakeDisplayPath(buf->fileName(), 30);
string const text =
bformat(_("The document %1$s has unsaved changes.\n\n"
"Do you want to save the document or discard the changes?"), fname);
int const ret = Alert::prompt(_("Save changed document?"),
text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
if (ret == 0) {
if (buf->isUnnamed()) {
if (!WriteAs(buf))
return false;
} else if (buf->save()) {
LyX::ref().lastfiles().newFile(buf->fileName());
} else {
return false;
}
} else if (ret == 2) {
return false;
}
if (buf->isUnnamed()) {
removeAutosaveFile(buf->fileName());
}
release(buf);
return true;
}
vector<string> const BufferList::getFileNames() const
{
vector<string> nvec;
transform(bstore.begin(), bstore.end(),
back_inserter(nvec),
boost::bind(&Buffer::fileName, _1));
return nvec;
}
Buffer * BufferList::first()
{
if (bstore.empty())
return 0;
return bstore.front();
}
Buffer * BufferList::getBuffer(unsigned int const choice)
{
if (choice >= bstore.size())
return 0;
return bstore[choice];
}
Buffer * BufferList::next(Buffer const * buf) const
{
BOOST_ASSERT(buf);
if (bstore.empty())
return 0;
BufferStorage::const_iterator it = find(bstore.begin(),
bstore.end(), buf);
BOOST_ASSERT(it != bstore.end());
++it;
if (it == bstore.end())
return bstore.front();
else
return *it;
}
Buffer * BufferList::previous(Buffer const * buf) const
{
BOOST_ASSERT(buf);
if (bstore.empty())
return 0;
BufferStorage::const_iterator it = find(bstore.begin(),
bstore.end(), buf);
BOOST_ASSERT(it != bstore.end());
if (it == bstore.begin())
return bstore.back();
else
return *(it - 1);
}
void BufferList::updateIncludedTeXfiles(string const & mastertmpdir,
OutputParams const & runparams)
{
BufferStorage::iterator it = bstore.begin();
BufferStorage::iterator end = bstore.end();
for (; it != end; ++it) {
if (!(*it)->isDepClean(mastertmpdir)) {
string writefile = mastertmpdir;
writefile += '/';
writefile += (*it)->getLatexName();
(*it)->makeLaTeXFile(writefile, mastertmpdir,
runparams, false);
(*it)->markDepClean(mastertmpdir);
}
}
}
void BufferList::emergencyWriteAll()
{
for_each(bstore.begin(), bstore.end(),
bind(&BufferList::emergencyWrite, this, _1));
}
void BufferList::emergencyWrite(Buffer * buf)
{
// Use ::assert to avoid a loop, BOOST_ASSERT ends up calling ::assert
// compare with 0 to avoid pointer/interger comparison
assert(buf != 0);
// No need to save if the buffer has not changed.
if (buf->isClean())
return;
string const doc = buf->isUnnamed()
? OnlyFilename(buf->fileName()) : buf->fileName();
lyxerr << bformat(_("LyX: Attempting to save document %1$s"), doc) << endl;
// We try to save three places:
// 1) Same place as document. Unless it is an unnamed doc.
if (!buf->isUnnamed()) {
string s = buf->fileName();
s += ".emergency";
lyxerr << " " << s << endl;
if (buf->writeFile(s)) {
buf->markClean();
lyxerr << _(" Save seems successful. Phew.") << endl;
return;
} else {
lyxerr << _(" Save failed! Trying...") << endl;
}
}
// 2) In HOME directory.
string s = AddName(package().home_dir(), buf->fileName());
s += ".emergency";
lyxerr << ' ' << s << endl;
if (buf->writeFile(s)) {
buf->markClean();
lyxerr << _(" Save seems successful. Phew.") << endl;
return;
}
lyxerr << _(" Save failed! Trying...") << endl;
// 3) In "/tmp" directory.
// MakeAbsPath to prepend the current
// drive letter on OS/2
s = AddName(MakeAbsPath("/tmp/"), buf->fileName());
s += ".emergency";
lyxerr << ' ' << s << endl;
if (buf->writeFile(s)) {
buf->markClean();
lyxerr << _(" Save seems successful. Phew.") << endl;
return;
}
lyxerr << _(" Save failed! Bummer. Document is lost.") << endl;
}
bool BufferList::exists(string const & s) const
{
return find_if(bstore.begin(), bstore.end(),
bind(equal_to<string>(),
bind(&Buffer::fileName, _1),
s))
!= bstore.end();
}
bool BufferList::isLoaded(Buffer const * b) const
{
BOOST_ASSERT(b);
BufferStorage::const_iterator cit =
find(bstore.begin(), bstore.end(), b);
return cit != bstore.end();
}
Buffer * BufferList::getBuffer(string const & s)
{
BufferStorage::iterator it =
find_if(bstore.begin(), bstore.end(),
bind(equal_to<string>(),
bind(&Buffer::fileName, _1),
s));
return it != bstore.end() ? (*it) : 0;
}
Buffer * BufferList::getBufferFromTmp(string const & s)
{
BufferStorage::iterator it = bstore.begin();
BufferStorage::iterator end = bstore.end();
for (; it < end; ++it)
if (prefixIs(s, (*it)->temppath()))
return *it;
return 0;
}
void BufferList::setCurrentAuthor(string const & name, string const & email)
{
BufferStorage::iterator it = bstore.begin();
BufferStorage::iterator end = bstore.end();
for (; it != end; ++it) {
(*it)->params().authors().record(0, Author(name, email));
}
}