lyx_mirror/src/insets/insetvspace.C
Georg Baum a956cc56e6 unicode: ditch another utf8 roundtrip
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15865 a592a061-630c-0410-9148-cb99ea01b6c8
2006-11-11 20:59:04 +00:00

271 lines
5.1 KiB
C

/**
* \file insetvspace.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author various
* \author André Pönitz
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "insetvspace.h"
#include "buffer.h"
#include "cursor.h"
#include "dispatchresult.h"
#include "funcrequest.h"
#include "gettext.h"
#include "LColor.h"
#include "lyxlex.h"
#include "lyxtext.h"
#include "metricsinfo.h"
#include "frontends/FontMetrics.h"
#include "frontends/Painter.h"
#include <sstream>
namespace lyx {
using std::istringstream;
using std::ostream;
using std::ostringstream;
using std::string;
using std::max;
namespace {
int const ADD_TO_VSPACE_WIDTH = 5;
} // namespace anon
InsetVSpace::InsetVSpace(VSpace const & space)
: space_(space)
{}
InsetVSpace::~InsetVSpace()
{
InsetVSpaceMailer(*this).hideDialog();
}
std::auto_ptr<InsetBase> InsetVSpace::doClone() const
{
return std::auto_ptr<InsetBase>(new InsetVSpace(*this));
}
void InsetVSpace::doDispatch(LCursor & cur, FuncRequest & cmd)
{
switch (cmd.action) {
case LFUN_INSET_MODIFY: {
InsetVSpaceMailer::string2params(to_utf8(cmd.argument()), space_);
break;
}
case LFUN_MOUSE_RELEASE:
InsetVSpaceMailer(*this).showDialog(&cur.bv());
break;
default:
InsetBase::doDispatch(cur, cmd);
break;
}
}
void InsetVSpace::read(Buffer const &, LyXLex & lex)
{
BOOST_ASSERT(lex.isOK());
string vsp;
lex >> vsp;
if (lex)
space_ = VSpace(vsp);
string end_token;
lex >> end_token;
if (end_token != "\\end_inset")
lex.printError("Missing \\end_inset at this point. "
"Read: `$$Token'");
}
void InsetVSpace::write(Buffer const &, ostream & os) const
{
os << "VSpace " << space_.asLyXCommand();
}
docstring const InsetVSpace::label() const
{
static docstring const label = _("Vertical Space");
return label + " (" + space_.asGUIName() + ')';
}
namespace {
int const arrow_size = 4;
}
void InsetVSpace::metrics(MetricsInfo & mi, Dimension & dim) const
{
int height = 3 * arrow_size;
if (space_.length().len().value() >= 0.0)
height = max(height, space_.inPixels(*mi.base.bv));
LyXFont font;
font.decSize();
font.decSize();
int w = 0;
int a = 0;
int d = 0;
theFontMetrics(font).rectText(label(), w, a, d);
height = max(height, a + d);
dim.asc = height / 2 + (a - d) / 2; // align cursor with the
dim.des = height - dim.asc; // label text
dim.wid = ADD_TO_VSPACE_WIDTH + 2 * arrow_size + 5 + w;
dim_ = dim;
}
void InsetVSpace::draw(PainterInfo & pi, int x, int y) const
{
setPosCache(pi, x, y);
x += ADD_TO_VSPACE_WIDTH;
int const start = y - dim_.asc;
int const end = y + dim_.des;
// y-values for top arrow
int ty1, ty2;
// y-values for bottom arrow
int by1, by2;
if (space_.kind() == VSpace::VFILL) {
ty1 = ty2 = start;
by1 = by2 = end;
} else {
// adding or removing space
bool const added = space_.kind() != VSpace::LENGTH ||
space_.length().len().value() >= 0.0;
ty1 = added ? (start + arrow_size) : start;
ty2 = added ? start : (start + arrow_size);
by1 = added ? (end - arrow_size) : end;
by2 = added ? end : (end - arrow_size);
}
int const midx = x + arrow_size;
int const rightx = midx + arrow_size;
// first the string
int w = 0;
int a = 0;
int d = 0;
LyXFont font;
font.setColor(LColor::added_space);
font.decSize();
font.decSize();
docstring const lab = label();
theFontMetrics(font).rectText(lab, w, a, d);
pi.pain.rectText(x + 2 * arrow_size + 5,
start + (end - start) / 2 + (a - d) / 2,
lab, font, LColor::none, LColor::none);
// top arrow
pi.pain.line(x, ty1, midx, ty2, LColor::added_space);
pi.pain.line(midx, ty2, rightx, ty1, LColor::added_space);
// bottom arrow
pi.pain.line(x, by1, midx, by2, LColor::added_space);
pi.pain.line(midx, by2, rightx, by1, LColor::added_space);
// joining line
pi.pain.line(midx, ty2, midx, by2, LColor::added_space);
}
int InsetVSpace::latex(Buffer const & buf, odocstream & os,
OutputParams const &) const
{
os << from_ascii(space_.asLatexCommand(buf.params())) << '\n';
return 1;
}
int InsetVSpace::plaintext(Buffer const &, odocstream & os,
OutputParams const &) const
{
os << "\n\n";
return 2;
}
int InsetVSpace::docbook(Buffer const &, odocstream & os,
OutputParams const &) const
{
os << '\n';
return 1;
}
string const InsetVSpaceMailer::name_ = "vspace";
InsetVSpaceMailer::InsetVSpaceMailer(InsetVSpace & inset)
: inset_(inset)
{}
string const InsetVSpaceMailer::inset2string(Buffer const &) const
{
return params2string(inset_.space());
}
void InsetVSpaceMailer::string2params(string const & in, VSpace & vspace)
{
vspace = VSpace();
if (in.empty())
return;
istringstream data(in);
LyXLex lex(0,0);
lex.setStream(data);
string name;
lex >> name;
if (!lex || name != name_)
return print_mailer_error("InsetVSpaceMailer", in, 1, name_);
string vsp;
lex >> vsp;
if (lex)
vspace = VSpace(vsp);
}
string const InsetVSpaceMailer::params2string(VSpace const & vspace)
{
ostringstream data;
data << name_ << ' ' << vspace.asLyXCommand();
return data.str();
}
} // namespace lyx