lyx_mirror/src/insets/insetspace.C

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/**
* \file insetspace.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Asger Alstrup Nielsen
* \author Jean-Marc Lasgouttes
* \author Lars Gullik Bj<EFBFBD>nnes
* \author J<EFBFBD>rgen Spitzm<EFBFBD>ller
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "insetspace.h"
#include "debug.h"
#include "LColor.h"
#include "lyxlex.h"
#include "metricsinfo.h"
#include "outputparams.h"
#include "frontends/font_metrics.h"
#include "frontends/Painter.h"
using std::string;
using std::max;
using std::auto_ptr;
using std::ostream;
InsetSpace::InsetSpace()
{}
InsetSpace::InsetSpace(Kind k)
: kind_(k)
{}
InsetSpace::Kind InsetSpace::kind() const
{
return kind_;
}
void InsetSpace::metrics(MetricsInfo & mi, Dimension & dim) const
{
LyXFont & font = mi.base.font;
dim.asc = font_metrics::maxAscent(font);
dim.des = font_metrics::maxDescent(font);
switch (kind_) {
case THIN:
case NEGTHIN:
dim.wid = font_metrics::width("x", font) / 3;
break;
case PROTECTED:
case NORMAL:
dim.wid = font_metrics::width("x", font);
break;
case QUAD:
dim.wid = 20;
break;
case QQUAD:
dim.wid = 40;
break;
case ENSPACE:
case ENSKIP:
dim.wid = 10;
break;
}
dim_ = dim;
}
void InsetSpace::draw(PainterInfo & pi, int x, int y) const
{
int const w = width();
int const h = font_metrics::ascent('x', pi.base.font);
int xp[4], yp[4];
xp[0] = x;
yp[0] = y - max(h / 4, 1);
if (kind_ == NORMAL) {
xp[1] = x; yp[1] = y;
xp[2] = x + w; yp[2] = y;
} else {
xp[1] = x; yp[1] = y + max(h / 4, 1);
xp[2] = x + w; yp[2] = y + max(h / 4, 1);
}
xp[3] = x + w;
yp[3] = y - max(h / 4, 1);
if (kind_ == PROTECTED || kind_ == ENSPACE || kind_ == NEGTHIN)
pi.pain.lines(xp, yp, 4, LColor::latex);
else
pi.pain.lines(xp, yp, 4, LColor::special);
}
void InsetSpace::write(Buffer const &, ostream & os) const
{
string command;
switch (kind_) {
case NORMAL:
command = "\\space";
break;
case PROTECTED:
command = "~";
break;
case THIN:
command = "\\,";
break;
case QUAD:
command = "\\quad{}";
break;
case QQUAD:
command = "\\qquad{}";
break;
case ENSPACE:
command = "\\enspace{}";
break;
case ENSKIP:
command = "\\enskip{}";
break;
case NEGTHIN:
command = "\\negthinspace{}";
break;
}
os << "\\InsetSpace " << command << "\n";
}
// This function will not be necessary when lyx3
void InsetSpace::read(Buffer const &, LyXLex & lex)
{
lex.next();
string const command = lex.getString();
if (command == "\\space")
kind_ = NORMAL;
else if (command == "~")
kind_ = PROTECTED;
else if (command == "\\,")
kind_ = THIN;
else if (command == "\\quad{}")
kind_ = QUAD;
else if (command == "\\qquad{}")
kind_ = QQUAD;
else if (command == "\\enspace{}")
kind_ = ENSPACE;
else if (command == "\\enskip{}")
kind_ = ENSKIP;
else if (command == "\\negthinspace{}")
kind_ = NEGTHIN;
else
lex.printError("InsetSpace: Unknown kind: `$$Token'");
}
int InsetSpace::latex(Buffer const &, ostream & os,
OutputParams const & runparams) const
{
switch (kind_) {
case NORMAL:
os << (runparams.free_spacing ? " " : "\\ ");
break;
case PROTECTED:
os << (runparams.free_spacing ? ' ' : '~');
break;
case THIN:
os << (runparams.free_spacing ? " " : "\\,");
break;
case QUAD:
os << (runparams.free_spacing ? " " : "\\quad{}");
break;
case QQUAD:
os << (runparams.free_spacing ? " " : "\\qquad{}");
break;
case ENSPACE:
os << (runparams.free_spacing ? " " : "\\enspace{}");
break;
case ENSKIP:
os << (runparams.free_spacing ? " " : "\\enskip{}");
break;
case NEGTHIN:
os << (runparams.free_spacing ? " " : "\\negthinspace{}");
break;
}
return 0;
}
int InsetSpace::plaintext(Buffer const &, ostream & os,
OutputParams const &) const
{
switch (kind_) {
case NORMAL:
case PROTECTED:
case THIN:
case QUAD:
case QQUAD:
case ENSPACE:
case ENSKIP:
case NEGTHIN:
os << ' ';
break;
}
return 0;
}
int InsetSpace::linuxdoc(Buffer const &, ostream & os,
OutputParams const &) const
{
switch (kind_) {
case NORMAL:
case QUAD:
case QQUAD:
case ENSKIP:
os << " ";
break;
case PROTECTED:
case ENSPACE:
case THIN:
case NEGTHIN:
os << "&nbsp;";
break;
}
return 0;
}
int InsetSpace::docbook(Buffer const &, ostream & os,
OutputParams const &) const
{
switch (kind_) {
case NORMAL:
case QUAD:
case QQUAD:
case ENSKIP:
os << " ";
break;
case PROTECTED:
case ENSPACE:
case THIN:
case NEGTHIN:
os << "&nbsp;";
break;
}
return 0;
}
auto_ptr<InsetBase> InsetSpace::doClone() const
{
return auto_ptr<InsetBase>(new InsetSpace(kind_));
}
bool InsetSpace::isChar() const
{
return true;
}
bool InsetSpace::isLetter() const
{
return false;
}
bool InsetSpace::isSpace() const
{
return true;
}