lyx_mirror/src/frontends/controllers/ControlDocument.C

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// -*- C++ -*-
/**
* \file ControlDocument.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Edwin Leuven
*
* Full author contact details are available in file CREDITS
*/
#include <config.h>
#include "BufferView.h"
#include "ControlDocument.h"
#include "ViewBase.h"
#include "gettext.h"
#include "lyxfind.h"
#include "buffer.h"
#include "errorlist.h"
#include "language.h"
#include "lyx_main.h"
#include "lyxtextclass.h"
#include "lyxtextclasslist.h"
#include "CutAndPaste.h"
#include "frontends/LyXView.h"
#include "frontends/Alert.h"
#include "support/LAssert.h"
#include "support/lstrings.h"
#include "support/filetools.h"
using std::endl;
ControlDocument::ControlDocument(LyXView & lv, Dialogs & d)
: ControlDialogBD(lv, d), bp_(0)
{}
ControlDocument::~ControlDocument()
{}
BufferParams & ControlDocument::params()
{
lyx::Assert(bp_.get());
return *bp_;
}
LyXTextClass ControlDocument::textClass()
{
return textclasslist[bp_->textclass];
}
void ControlDocument::apply()
{
if (!bufferIsAvailable())
return;
classApply();
view().apply();
setLanguage();
buffer()->params = *bp_;
lv_.view()->redoCurrentBuffer();
buffer()->markDirty();
lv_.message(_("Document settings applied"));
}
void ControlDocument::setParams()
{
if (!bp_.get())
bp_.reset(new BufferParams());
/// Set the buffer parameters
*bp_ = buffer()->params;
}
void ControlDocument::setLanguage()
{
Language const * oldL = buffer()->params.language;
Language const * newL = bp_->language;
if (oldL != newL) {
if (oldL->RightToLeft() == newL->RightToLeft()
&& !lv_.buffer()->isMultiLingual())
lv_.buffer()->changeLanguage(oldL, newL);
else
lv_.buffer()->updateDocLang(newL);
}
}
void ControlDocument::classApply()
{
BufferParams & params = buffer()->params;
lyx::textclass_type const old_class = params.textclass;
lyx::textclass_type const new_class = bp_->textclass;
// exit if nothing changes or if unable to load the new class
if (new_class == old_class || !loadTextclass(new_class))
return;
// successfully loaded
view().apply();
buffer()->params = *bp_;
lv_.message(_("Converting document to new document class..."));
ErrorList el;
CutAndPaste::SwitchLayoutsBetweenClasses(old_class, new_class,
lv_.buffer()->paragraphs,
el);
bufferview()->setErrorList(el);
bufferview()->showErrorList(_("Class switch"));
}
bool ControlDocument::loadTextclass(lyx::textclass_type tc) const
{
bool const success = textclasslist[tc].load();
if (success)
return success;
string s = bformat(_("The document could not be converted\n"
"into the document class %1$s."),
textclasslist[tc].name());
Alert::error(_("Could not change class"), s);
return success;
}
void ControlDocument::saveAsDefault()
{
// Can somebody justify this ? I think it should be removed - jbl
#if 0
if (!Alert::askQuestion(_("Do you want to save the current settings"),
_("for the document layout as default?"),
_("(they will be valid for any new document)")))
return;
#endif
lv_.buffer()->params.preamble = bp_->preamble;
string const fname = AddName(AddPath(user_lyxdir, "templates/"),
"defaults.lyx");
Buffer defaults(fname);
defaults.params = params();
// add an empty paragraph. Is this enough?
Paragraph * par = new Paragraph;
par->layout(params().getLyXTextClass().defaultLayout());
defaults.paragraphs.push_back(par);
defaults.writeFile(defaults.fileName());
}