lyx_mirror/src/Spacing.C

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/**
* \file Spacing.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bj<EFBFBD>nnes
* \author Jean-Marc Lasgouttes
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "Spacing.h"
#include "support/lstrings.h"
#include "support/convert.h"
#include <sstream>
#include <string>
using std::ostream;
using std::ostringstream;
using std::string;
string const Spacing::spacing_string[]
= {"single", "onehalf", "double", "other"};
string const Spacing::getValueAsString() const
{
switch (space) {
case Default: // nothing special should happen with this...
case Single: return "1.0";
case Onehalf: return "1.25";
case Double: return "1.667";
case Other: return value;
}
return "1.0";
}
double Spacing::getValue() const
{
return convert<double>(getValueAsString());
}
void Spacing::set(Spacing::Space sp, double val)
{
set(sp, convert<string>(val));
}
void Spacing::set(Spacing::Space sp, string const & val)
{
space = sp;
if (sp == Other) {
switch (int(convert<double>(val) * 1000 + 0.5)) {
case 1000:
space = Single;
break;
case 1250:
space = Onehalf;
break;
case 1667:
space = Double;
break;
default:
value = val;
break;
}
}
}
void Spacing::writeFile(ostream & os, bool para) const
{
if (space == Default) return;
string cmd = para ? "\\paragraph_spacing " : "\\spacing ";
if (getSpace() == Spacing::Other) {
os << cmd << spacing_string[getSpace()]
<< ' ' << getValueAsString() << "\n";
} else {
os << cmd << spacing_string[getSpace()] << "\n";
}
}
string const Spacing::writeEnvirBegin() const
{
switch (space) {
case Default: break; // do nothing
case Single:
return "\\begin{singlespace}";
case Onehalf:
return "\\begin{onehalfspace}";
case Double:
return "\\begin{doublespace}";
case Other:
{
ostringstream ost;
ost << "\\begin{spacing}{"
<< getValueAsString() << '}';
return ost.str();
}
}
return string();
}
string const Spacing::writeEnvirEnd() const
{
switch (space) {
case Default: break; // do nothing
case Single:
return "\\end{singlespace}";
case Onehalf:
return "\\end{onehalfspace}";
case Double:
return "\\end{doublespace}";
case Other:
return "\\end{spacing}";
}
return string();
}