lyx_mirror/src/buffer_funcs.cpp
Jürgen Spitzmüller f4b8f4528f * src/buffer_funcs.{cpp,h}:
- add optional bool "acceptDirty" to checkAndLoadLyXFiles. 
	   If true, the method doesn't care for buffer dirtiness
* src/Buffer.cpp:
	- when checking for master buffer, do not care if it's dirty
	  (fix bug 5514)

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@27774 a592a061-630c-0410-9148-cb99ea01b6c8
2008-12-05 15:49:07 +00:00

224 lines
5.5 KiB
C++

/**
* \file buffer_funcs.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
* \author Alfredo Braunstein
*
* Full author contact details are available in file CREDITS.
*
*/
#include <config.h>
#include "buffer_funcs.h"
#include "Buffer.h"
#include "BufferList.h"
#include "BufferParams.h"
#include "DocIterator.h"
#include "Counters.h"
#include "ErrorList.h"
#include "Floating.h"
#include "FloatList.h"
#include "InsetList.h"
#include "Language.h"
#include "LaTeX.h"
#include "Layout.h"
#include "LyX.h"
#include "TextClass.h"
#include "Paragraph.h"
#include "paragraph_funcs.h"
#include "ParagraphList.h"
#include "ParagraphParameters.h"
#include "ParIterator.h"
#include "TexRow.h"
#include "Text.h"
#include "TocBackend.h"
#include "frontends/alert.h"
#include "insets/InsetBibitem.h"
#include "insets/InsetInclude.h"
#include "support/lassert.h"
#include "support/convert.h"
#include "support/debug.h"
#include "support/filetools.h"
#include "support/gettext.h"
#include "support/lstrings.h"
#include "support/textutils.h"
using namespace std;
using namespace lyx::support;
namespace lyx {
namespace Alert = frontend::Alert;
Buffer * checkAndLoadLyXFile(FileName const & filename, bool const acceptDirty)
{
// File already open?
Buffer * checkBuffer = theBufferList().getBuffer(filename);
if (checkBuffer) {
// sometimes (when setting the master buffer from a child)
// we accept a dirty buffer right away (otherwise we'd get
// an infinite loop (bug 5514)
if (checkBuffer->isClean() || acceptDirty)
return checkBuffer;
docstring const file = makeDisplayPath(filename.absFilename(), 20);
docstring text = bformat(_(
"The document %1$s is already loaded and has unsaved changes.\n"
"Do you want to abandon your changes and reload the version on disk?"), file);
if (Alert::prompt(_("Reload saved document?"),
text, 0, 1, _("&Reload"), _("&Keep Changes")))
return checkBuffer;
// FIXME: should be LFUN_REVERT
theBufferList().release(checkBuffer);
// Load it again.
return checkAndLoadLyXFile(filename);
}
if (filename.exists()) {
if (!filename.isReadableFile()) {
docstring text = bformat(_("The file %1$s exists but is not "
"readable by the current user."),
from_utf8(filename.absFilename()));
Alert::error(_("File not readable!"), text);
return 0;
}
Buffer * b = theBufferList().newBuffer(filename.absFilename());
if (!b) {
// Buffer creation is not possible.
return 0;
}
if (!b->loadLyXFile(filename)) {
theBufferList().release(b);
return 0;
}
return b;
}
docstring text = bformat(_("The document %1$s does not yet "
"exist.\n\nDo you want to create a new document?"),
from_utf8(filename.absFilename()));
if (!Alert::prompt(_("Create new document?"),
text, 0, 1, _("&Create"), _("Cancel")))
return newFile(filename.absFilename(), string(), true);
return 0;
}
// FIXME newFile() should probably be a member method of Application...
Buffer * newFile(string const & filename, string const & templatename,
bool const isNamed)
{
// get a free buffer
Buffer * b = theBufferList().newBuffer(filename);
if (!b)
// Buffer creation is not possible.
return 0;
FileName tname;
// use defaults.lyx as a default template if it exists.
if (templatename.empty())
tname = libFileSearch("templates", "defaults.lyx");
else
tname = makeAbsPath(templatename);
if (!tname.empty()) {
if (!b->readFile(tname)) {
docstring const file = makeDisplayPath(tname.absFilename(), 50);
docstring const text = bformat(
_("The specified document template\n%1$s\ncould not be read."),
file);
Alert::error(_("Could not read template"), text);
theBufferList().release(b);
return 0;
}
}
if (!isNamed) {
b->setUnnamed();
b->setFileName(filename);
}
b->setReadonly(false);
b->setFullyLoaded(true);
return b;
}
Buffer * newUnnamedFile(string const & templatename, FileName const & path)
{
static int newfile_number;
FileName filename(path,
"newfile" + convert<string>(++newfile_number) + ".lyx");
while (theBufferList().exists(filename)
|| filename.isReadableFile()) {
++newfile_number;
filename.set(path,
"newfile" + convert<string>(newfile_number) + ".lyx");
}
return newFile(filename.absFilename(), templatename, false);
}
int countWords(DocIterator const & from, DocIterator const & to)
{
int count = 0;
bool inword = false;
for (DocIterator dit = from ; dit != to ; dit.forwardPos()) {
// Copied and adapted from isLetter() in ControlSpellChecker
if (dit.inTexted()
&& dit.pos() != dit.lastpos()
&& dit.paragraph().isLetter(dit.pos())
&& !dit.paragraph().isDeleted(dit.pos())) {
if (!inword) {
++count;
inword = true;
}
} else if (inword)
inword = false;
}
return count;
}
int countChars(DocIterator const & from, DocIterator const & to, bool with_blanks)
{
int chars = 0;
int blanks = 0;
for (DocIterator dit = from ; dit != to ; dit.forwardPos()) {
if (!dit.inTexted()) continue;
Paragraph const & par = dit.paragraph();
pos_type const pos = dit.pos();
if (pos != dit.lastpos() && !par.isDeleted(pos)) {
if (Inset const * ins = par.getInset(pos)) {
if (ins->isLetter())
++chars;
else if (with_blanks && ins->isSpace())
++blanks;
} else {
char_type const c = par.getChar(pos);
if (isPrintableNonspace(c))
++chars;
else if (isSpace(c) && with_blanks)
++blanks;
}
}
}
return chars + blanks;
}
} // namespace lyx