lyx_mirror/src/insets/InsetERT.cpp

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/**
* \file InsetERT.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author J<EFBFBD>rgen Vigna
* \author Lars Gullik Bj<EFBFBD>nnes
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "InsetERT.h"
#include "Buffer.h"
#include "BufferParams.h"
#include "BufferView.h"
#include "Cursor.h"
#include "DispatchResult.h"
#include "FuncRequest.h"
#include "FuncStatus.h"
#include "Language.h"
#include "Layout.h"
#include "LyXAction.h"
#include "Lexer.h"
#include "TextClass.h"
#include "MetricsInfo.h"
#include "ParagraphParameters.h"
#include "Paragraph.h"
#include "frontends/alert.h"
#include "support/debug.h"
#include "support/gettext.h"
#include "support/lstrings.h"
#include <sstream>
using namespace std;
using namespace lyx::support;
namespace lyx {
InsetERT::InsetERT(Buffer const & buf, CollapseStatus status)
: InsetCollapsable(buf, status)
{}
InsetERT::~InsetERT()
{
InsetERTMailer(*this).hideDialog();
}
void InsetERT::write(ostream & os) const
{
os << "ERT" << "\n";
InsetCollapsable::write(os);
}
docstring InsetERT::editMessage() const
{
return _("Opened ERT Inset");
}
int InsetERT::latex(odocstream & os, OutputParams const & op) const
{
return InsetCollapsable::latex(os, op);
}
int InsetERT::plaintext(odocstream &, OutputParams const &) const
{
return 0; // do not output TeX code
}
int InsetERT::docbook(odocstream & os, OutputParams const &) const
{
// FIXME can we do the same thing here as for LaTeX?
ParagraphList::const_iterator par = paragraphs().begin();
ParagraphList::const_iterator end = paragraphs().end();
int lines = 0;
while (par != end) {
pos_type siz = par->size();
for (pos_type i = 0; i < siz; ++i)
os.put(par->getChar(i));
++par;
if (par != end) {
os << "\n";
++lines;
}
}
return lines;
}
void InsetERT::doDispatch(Cursor & cur, FuncRequest & cmd)
{
BufferParams const & bp = cur.buffer().params();
Layout const layout = bp.documentClass().emptyLayout();
//lyxerr << "\nInsetERT::doDispatch (begin): cmd: " << cmd << endl;
switch (cmd.action) {
case LFUN_MOUSE_PRESS:
if (cmd.button() != mouse_button::button3)
InsetCollapsable::doDispatch(cur, cmd);
else
// This makes the cursor leave the
// inset when it collapses on mouse-3
cur.undispatched();
break;
case LFUN_QUOTE_INSERT: {
// We need to bypass the fancy quotes in Text
FuncRequest f(LFUN_SELF_INSERT, "\"");
dispatch(cur, f);
break;
}
case LFUN_INSET_MODIFY: {
InsetCollapsable::CollapseStatus st;
InsetERTMailer::string2params(to_utf8(cmd.argument()), st);
setStatus(cur, st);
break;
}
default:
// Force any new text to latex_language
// FIXME: This should not be necessary but
// new paragraphs that are created by pressing enter at the
// start of an existing paragraph get the buffer language
// and not latex_language, so we take this brute force
// approach.
cur.current_font.fontInfo() = layout.font;
cur.real_current_font.fontInfo() = layout.font;
InsetCollapsable::doDispatch(cur, cmd);
break;
}
}
bool InsetERT::getStatus(Cursor & cur, FuncRequest const & cmd,
FuncStatus & status) const
{
switch (cmd.action) {
case LFUN_CLIPBOARD_PASTE:
case LFUN_INSET_MODIFY:
case LFUN_PASTE:
case LFUN_PRIMARY_SELECTION_PASTE:
case LFUN_QUOTE_INSERT:
status.enabled(true);
return true;
// this one is difficult to get right. As a half-baked
// solution, we consider only the first action of the sequence
case LFUN_COMMAND_SEQUENCE: {
// argument contains ';'-terminated commands
string const firstcmd = token(to_utf8(cmd.argument()), ';', 0);
FuncRequest func(lyxaction.lookupFunc(firstcmd));
func.origin = cmd.origin;
return getStatus(cur, func, status);
}
default:
return InsetCollapsable::getStatus(cur, cmd, status);
}
}
void InsetERT::setButtonLabel()
{
if (decoration() == InsetLayout::Classic)
setLabel(isOpen() ? _("ERT") : getNewLabel(_("ERT")));
else
setLabel(getNewLabel(_("ERT")));
}
bool InsetERT::insetAllowed(InsetCode /* code */) const
{
return false;
}
void InsetERT::draw(PainterInfo & pi, int x, int y) const
{
const_cast<InsetERT &>(*this).setButtonLabel();
InsetCollapsable::draw(pi, x, y);
}
bool InsetERT::showInsetDialog(BufferView * bv) const
{
InsetERTMailer(const_cast<InsetERT &>(*this)).showDialog(bv);
return true;
}
string const InsetERTMailer::name_("ert");
InsetERTMailer::InsetERTMailer(InsetERT & inset)
: inset_(inset)
{}
string const InsetERTMailer::inset2string(Buffer const &) const
{
return params2string(inset_.status());
}
void InsetERTMailer::string2params(string const & in,
InsetCollapsable::CollapseStatus & status)
{
status = InsetCollapsable::Collapsed;
if (in.empty())
return;
istringstream data(in);
Lexer lex(0,0);
lex.setStream(data);
string name;
lex >> name;
if (name != name_)
return print_mailer_error("InsetERTMailer", in, 1, name_);
int s;
lex >> s;
Fix bug 3293 by Bernhard Roider: This changes the semantics of isOK() and operator(), comments from Bernhard below: With the old version of lyxlex it was _impossible_ to check whether reading an integer, float, ... succeeded or not. The current solution to check for is.bad() in some cases and in other cases use is.good() does not give the desired information. Moreover the result of is.bad() depends on the stl implementation and behaves different for linux and windows. the bug was introduced by the patch that fixed the bug that crashed lyx when "inset-insert ert" was executed from the command buffer. The lexer has the method isOK() which reflects the status of the stream is. The operators void* and ! are not really well defined (they depend on the value of is.bad()). What is missing is a test if the last reading operation was successful and thus the returned value is valid. That's what i implemented in this patch. The new rule for using the lexer: if you want to know if the lexer still has data to read (either from the stream or from the pushed token) then use "lex.isOK()". If you want to test if the last reading operation was successful then use eg. "if (lex) {...}" or unsuccessful then use eg. "if (!lex) {...}" an example: int readParam(LyxLex &lex) { int param = 1; // default value if (lex.isOK()) { // the lexer has data to read int p; // temporary variable lex >> p; if (lex) param = p; // only use the input if the reading operation was successful } return param; } git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17569 a592a061-630c-0410-9148-cb99ea01b6c8
2007-03-26 13:43:49 +00:00
if (lex)
status = static_cast<InsetCollapsable::CollapseStatus>(s);
}
string const
InsetERTMailer::params2string(InsetCollapsable::CollapseStatus status)
{
ostringstream data;
data << name_ << ' ' << status;
return data.str();
}
} // namespace lyx