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ee0bd36a86
lyx_mirror/src/mathed/InsetMathHull.cpp
Jean-Marc Lasgouttes ee0bd36a86 Add empty rows to grid insets when numbers are too wide 
This is done to ensure that numbering never overlaps equations. The
result can be different according to the bufferview, which is why
RowInfo::offset is now a std:map.

Remaing issues (how bad are theese ?):

- the numbering is considered too large when it overlaps the inset
  rect, whereas one could consider the width if the current row
  instead.

- previews may need to be adapted similarly to fit the whole screen width
2019-07-14 23:27:44 +02:00

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/**
* \file InsetMathHull.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author André Pönitz
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "InsetMathHull.h"
#include "InsetMathChar.h"
#include "InsetMathColor.h"
#include "InsetMathFrac.h"
#include "InsetMathNest.h"
#include "InsetMathScript.h"
#include "MathExtern.h"
#include "MathFactory.h"
#include "MathStream.h"
#include "MathSupport.h"
#include "Buffer.h"
#include "BufferParams.h"
#include "BufferView.h"
#include "ColorSet.h"
#include "CutAndPaste.h"
#include "Encoding.h"
#include "Exporter.h"
#include "FuncRequest.h"
#include "FuncStatus.h"
#include "Language.h"
#include "LaTeXFeatures.h"
#include "LyXRC.h"
#include "MacroTable.h"
#include "InsetMathMacro.h"
#include "InsetMathMacroTemplate.h"
#include "MetricsInfo.h"
#include "output_xhtml.h"
#include "Paragraph.h"
#include "ParIterator.h"
#include "sgml.h"
#include "TexRow.h"
#include "TextClass.h"
#include "TextPainter.h"
#include "TocBackend.h"
#include "insets/InsetLabel.h"
#include "insets/InsetRef.h"
#include "insets/RenderPreview.h"
#include "graphics/GraphicsImage.h"
#include "graphics/PreviewImage.h"
#include "graphics/PreviewLoader.h"
#include "frontends/alert.h"
#include "frontends/Painter.h"
#include "support/convert.h"
#include "support/debug.h"
#include "support/gettext.h"
#include "support/filetools.h"
#include "support/lassert.h"
#include "support/lstrings.h"
#include "support/RefChanger.h"
#include <sstream>
using namespace std;
using namespace lyx::support;
namespace lyx {
using cap::grabAndEraseSelection;
using cap::reduceSelectionToOneCell;
namespace {
int getCols(HullType type)
{
switch (type) {
case hullEqnArray:
return 3;
case hullAlign:
case hullFlAlign:
case hullAlignAt:
case hullXAlignAt:
case hullXXAlignAt:
return 2;
case hullUnknown:
case hullNone:
case hullSimple:
case hullEquation:
case hullMultline:
case hullGather:
case hullRegexp:
return 1;
}
// avoid warning
return 0;
}
// returns position of first relation operator in the array
// used for "intelligent splitting"
size_t firstRelOp(MathData const & ar)
{
for (MathData::const_iterator it = ar.begin(); it != ar.end(); ++it)
if ((*it)->mathClass() == MC_REL)
return it - ar.begin();
return ar.size();
}
char const * star(bool numbered)
{
return numbered ? "" : "*";
}
// writes a preamble for underlined or struck out math display
void writeMathdisplayPreamble(WriteStream & os)
{
if (os.strikeoutMath()) {
if (os.ulemCmd() == WriteStream::UNDERLINE)
os << "\\raisebox{-\\belowdisplayshortskip}{"
"\\lyxmathsout{\\parbox[b]{\\linewidth}{";
else
os << "\\lyxmathsout{\\parbox{\\linewidth}{";
} else if (os.ulemCmd() == WriteStream::UNDERLINE)
os << "\\raisebox{-\\belowdisplayshortskip}{"
"\\parbox[b]{\\linewidth}{";
else if (os.ulemCmd() == WriteStream::STRIKEOUT)
os << "\\parbox{\\linewidth}{";
}
// writes a postamble for underlined or struck out math display
void writeMathdisplayPostamble(WriteStream & os)
{
if (os.strikeoutMath()) {
if (os.ulemCmd() == WriteStream::UNDERLINE)
os << "}";
os << "}}\\\\\n";
} else if (os.ulemCmd() == WriteStream::UNDERLINE)
os << "}}\\\\\n";
else if (os.ulemCmd() == WriteStream::STRIKEOUT)
os << "}\\\\\n";
}
} // namespace
HullType hullType(docstring const & s)
{
if (s == "none") return hullNone;
if (s == "simple") return hullSimple;
if (s == "equation") return hullEquation;
if (s == "eqnarray") return hullEqnArray;
if (s == "align") return hullAlign;
if (s == "alignat") return hullAlignAt;
if (s == "xalignat") return hullXAlignAt;
if (s == "xxalignat") return hullXXAlignAt;
if (s == "multline") return hullMultline;
if (s == "gather") return hullGather;
if (s == "flalign") return hullFlAlign;
if (s == "regexp") return hullRegexp;
lyxerr << "unknown hull type '" << to_utf8(s) << "'" << endl;
return hullUnknown;
}
docstring hullName(HullType type)
{
switch (type) {
case hullNone: return from_ascii("none");
case hullSimple: return from_ascii("simple");
case hullEquation: return from_ascii("equation");
case hullEqnArray: return from_ascii("eqnarray");
case hullAlign: return from_ascii("align");
case hullAlignAt: return from_ascii("alignat");
case hullXAlignAt: return from_ascii("xalignat");
case hullXXAlignAt: return from_ascii("xxalignat");
case hullMultline: return from_ascii("multline");
case hullGather: return from_ascii("gather");
case hullFlAlign: return from_ascii("flalign");
case hullRegexp: return from_ascii("regexp");
case hullUnknown:
lyxerr << "unknown hull type" << endl;
break;
}
return from_ascii("none");
}
static InsetLabel * dummy_pointer = 0;
InsetMathHull::InsetMathHull(Buffer * buf)
: InsetMathGrid(buf, 1, 1), type_(hullNone), numbered_(1, NONUMBER),
numbers_(1, empty_docstring()), label_(1, dummy_pointer),
preview_(new RenderPreview(this))
{
//lyxerr << "sizeof InsetMath: " << sizeof(InsetMath) << endl;
//lyxerr << "sizeof MetricsInfo: " << sizeof(MetricsInfo) << endl;
//lyxerr << "sizeof InsetMathChar: " << sizeof(InsetMathChar) << endl;
//lyxerr << "sizeof FontInfo: " << sizeof(FontInfo) << endl;
buffer_ = buf;
initMath();
setDefaults();
}
InsetMathHull::InsetMathHull(Buffer * buf, HullType type)
: InsetMathGrid(buf, getCols(type), 1), type_(type), numbered_(1, NONUMBER),
numbers_(1, empty_docstring()), label_(1, dummy_pointer),
preview_(new RenderPreview(this))
{
buffer_ = buf;
initMath();
setDefaults();
}
InsetMathHull::InsetMathHull(InsetMathHull const & other) : InsetMathGrid(other)
{
operator=(other);
}
InsetMathHull::~InsetMathHull()
{
for (size_t i = 0; i < label_.size(); ++i)
delete label_[i];
}
Inset * InsetMathHull::clone() const
{
return new InsetMathHull(*this);
}
InsetMathHull & InsetMathHull::operator=(InsetMathHull const & other)
{
if (this == &other)
return *this;
InsetMathGrid::operator=(other);
type_ = other.type_;
numbered_ = other.numbered_;
numbers_ = other.numbers_;
buffer_ = other.buffer_;
for (size_t i = 0; i < label_.size(); ++i)
delete label_[i];
label_ = other.label_;
for (size_t i = 0; i != label_.size(); ++i) {
if (label_[i])
label_[i] = new InsetLabel(*label_[i]);
}
preview_.reset(new RenderPreview(*other.preview_, this));
return *this;
}
void InsetMathHull::setBuffer(Buffer & buffer)
{
InsetMathGrid::setBuffer(buffer);
for (size_t i = 0; i != label_.size(); ++i) {
if (label_[i])
label_[i]->setBuffer(buffer);
}
}
// FIXME This should really be controlled by the TOC level, or
// something of the sort.
namespace {
const char * counters_to_save[] = {"section", "chapter"};
unsigned int const numcnts = sizeof(counters_to_save)/sizeof(char *);
} // namespace
void InsetMathHull::updateBuffer(ParIterator const & it, UpdateType utype)
{
if (!buffer_) {
//FIXME: buffer_ should be set at creation for this inset! Problem is
// This inset is created at too many places (see Parser::parse1() in
// MathParser.cpp).
return;
}
// if any of the equations are numbered, then we want to save the values
// of some of the counters.
if (haveNumbers()) {
BufferParams const & bp = buffer_->params();
string const & lang = it->getParLanguage(bp)->code();
Counters & cnts =
buffer_->masterBuffer()->params().documentClass().counters();
// right now, we only need to do this at export time
if (utype == OutputUpdate) {
for (size_t i = 0; i < numcnts; ++i) {
docstring const cnt = from_ascii(counters_to_save[i]);
if (cnts.hasCounter(cnt))
counter_map[cnt] = cnts.value(cnt);
}
}
// this has to be done separately
docstring const eqstr = from_ascii("equation");
if (cnts.hasCounter(eqstr)) {
if (utype == OutputUpdate)
counter_map[eqstr] = cnts.value(eqstr);
for (size_t i = 0; i != label_.size(); ++i) {
if (numbered(i)) {
Paragraph const & par = it.paragraph();
if (!par.isDeleted(it.pos())) {
cnts.step(eqstr, utype);
numbers_[i] = cnts.theCounter(eqstr, lang);
} else
numbers_[i] = from_ascii("#");
} else
numbers_[i] = empty_docstring();
}
}
}
// now the labels
for (size_t i = 0; i != label_.size(); ++i) {
if (label_[i])
label_[i]->updateBuffer(it, utype);
}
// pass down
InsetMathGrid::updateBuffer(it, utype);
}
void InsetMathHull::addToToc(DocIterator const & pit, bool output_active,
UpdateType utype, TocBackend & backend) const
{
if (!buffer_) {
//FIXME: buffer_ should be set at creation for this inset! Problem is
// This inset is created at too many places (see Parser::parse1() in
// MathParser.cpp).
return;
}
TocBuilder & b = backend.builder("equation");
// compute first and last item
row_type first = nrows();
for (row_type row = 0; row != nrows(); ++row)
if (numbered(row)) {
first = row;
break;
}
if (first == nrows())
// no equation
return;
row_type last = nrows() - 1;
for (; last != 0; --last)
if (numbered(last))
break;
// add equation numbers
b.pushItem(pit, docstring(), output_active);
if (first != last)
b.argumentItem(bformat(from_ascii("(%1$s-%2$s)"),
numbers_[first], numbers_[last]));
for (row_type row = 0; row != nrows(); ++row) {
if (!numbered(row))
continue;
if (label_[row])
label_[row]->addToToc(pit, output_active, utype, backend);
docstring label = nicelabel(row);
if (first == last)
// this is the only equation
b.argumentItem(label);
else {
// insert as sub-items
b.pushItem(pit, label, output_active);
b.pop();
}
}
b.pop();
}
Inset * InsetMathHull::editXY(Cursor & cur, int x, int y)
{
if (previewState(&cur.bv())) {
edit(cur, true);
return this;
}
return InsetMathNest::editXY(cur, x, y);
}
InsetMath::mode_type InsetMathHull::currentMode() const
{
switch (type_) {
case hullNone:
return UNDECIDED_MODE;
// definitely math mode ...
case hullUnknown:
case hullSimple:
case hullEquation:
case hullMultline:
case hullGather:
case hullEqnArray:
case hullAlign:
case hullFlAlign:
case hullAlignAt:
case hullXAlignAt:
case hullXXAlignAt:
case hullRegexp:
return MATH_MODE;
}
// avoid warning
return MATH_MODE;
}
// FIXME: InsetMathGrid should be changed to let the real column alignment be
// given by a virtual method like displayColAlign, because the values produced
// by defaultColAlign can be invalidated by lfuns such as add-column. For the
// moment the values produced by defaultColAlign are not used, notably because
// alignment is not implemented in the LyXHTML output.
char InsetMathHull::defaultColAlign(col_type col)
{
return colAlign(type_, col, buffer().params());
}
char InsetMathHull::displayColAlign(idx_type idx) const
{
switch (type_) {
case hullMultline: {
row_type const r = row(idx);
if (r == 0)
return 'l';
if (r == nrows() - 1)
return 'r';
return 'c';
}
case hullEqnArray:
case hullGather:
case hullAlign:
case hullAlignAt:
case hullXAlignAt:
case hullXXAlignAt:
case hullFlAlign:
return colAlign(type_, col(idx), buffer().params());
default:
break;
}
return InsetMathGrid::displayColAlign(idx);
}
int InsetMathHull::displayColSpace(col_type col) const
{
return colSpace(type_, col);
}
// FIXME: same comment as for defaultColAlign applies.
int InsetMathHull::defaultColSpace(col_type col)
{
return colSpace(type_, col);
}
string InsetMathHull::standardFont() const
{
switch (type_) {
case hullRegexp:
return "texttt";
case hullNone:
return "lyxnochange";
default:
return "mathnormal";
}
}
ColorCode InsetMathHull::standardColor() const
{
switch (type_) {
case hullRegexp:
case hullNone:
return Color_foreground;
default:
return Color_math;
}
}
bool InsetMathHull::previewState(const BufferView *const bv) const
{
if (!editing(bv) && RenderPreview::previewMath()
&& type_ != hullRegexp)
{
graphics::PreviewImage const * pimage =
preview_->getPreviewImage(bv->buffer());
return pimage && pimage->image();
}
return false;
}
namespace {
const int ERROR_FRAME_WIDTH = 2;
bool previewTooSmall(MetricsBase const & mb, Dimension const & dim)
{
// Value was hardcoded to 10 pixels
int const minval = mb.bv->zoomedPixels(10);
return dim.width() <= minval && dim.height() <= minval;
}
}
void InsetMathHull::metrics(MetricsInfo & mi, Dimension & dim) const
{
// true value in LaTeX is 12pt plus 3pt minus 9pt
// FIXME: even better would be to handle the short skip case.
int const display_margin = display() ? mi.base.inPixels(Length(12, Length::PT)) : 0;
if (previewState(mi.base.bv)) {
preview_->metrics(mi, dim);
if (previewTooSmall(mi.base, dim)) {
// preview image is too small
dim.wid += 2 * ERROR_FRAME_WIDTH;
dim.asc += 2 * ERROR_FRAME_WIDTH;
} else {
// insert a gap in front of the formula
// value was hardcoded to 1 pixel
dim.wid += mi.base.bv->zoomedPixels(1) ;
if (display()) {
dim.asc += display_margin;
dim.des += display_margin;
}
}
return;
}
{
Changer dummy1 = mi.base.changeFontSet(standardFont());
Changer dummy2 = mi.base.font.changeStyle(display() ? DISPLAY_STYLE
: TEXT_STYLE);
// let the cells adjust themselves
InsetMathGrid::metrics(mi, dim);
}
// Check whether the numbering interferes with the equations
if (numberedType()) {
BufferParams::MathNumber const math_number = buffer().params().getMathNumber();
int extra_offset = 0;
for (row_type row = 0; row < nrows(); ++row) {
rowinfo(row).offset[mi.base.bv] += extra_offset;
if (!numbered(row))
continue;
docstring const nl = nicelabel(row);
Dimension dimnl;
mathed_string_dim(mi.base.font, nl, dimnl);
int const ind = indent(*mi.base.bv);
int const x = ind ? ind : (mi.base.textwidth - dim.wid) / 2;
// for some reason metrics does not trigger at the
// same point as draw, and therefore we use >= instead of >
if ((math_number == BufferParams::LEFT && dimnl.wid >= x)
|| (math_number == BufferParams::RIGHT
&& dimnl.wid >= mi.base.textwidth - x - dim.wid)) {
extra_offset += dimnl.height();
}
}
dim.des += extra_offset;
}
if (display()) {
dim.asc += display_margin;
dim.des += display_margin;
}
// reserve some space for marker.
dim.wid += 2;
}
ColorCode InsetMathHull::backgroundColor(PainterInfo const & pi) const
{
BufferView const * const bv = pi.base.bv;
if (previewState(bv)) {
Dimension const dim = dimension(*pi.base.bv);
if (previewTooSmall(pi.base, dim))
return Color_error;
return graphics::PreviewLoader::backgroundColor();
}
return Color_mathbg;
}
void InsetMathHull::drawMarkers(PainterInfo & pi, int x, int y) const
{
ColorCode pen_color = mouseHovered(pi.base.bv) || editing(pi.base.bv)?
Color_mathframe : Color_mathcorners;
// If the corners have the same color as the background, do not paint them.
if (lcolor.getX11Name(Color_mathbg) == lcolor.getX11Name(pen_color))
return;
Inset::drawMarkers(pi, x, y);
Dimension const dim = dimension(*pi.base.bv);
int const t = x + dim.width() - 1;
int const a = y - dim.ascent();
pi.pain.line(x, a + 3, x, a, pen_color);
pi.pain.line(t, a + 3, t, a, pen_color);
pi.pain.line(x, a, x + 3, a, pen_color);
pi.pain.line(t - 3, a, t, a, pen_color);
}
void InsetMathHull::drawBackground(PainterInfo & pi, int x, int y) const
{
Dimension const dim = dimension(*pi.base.bv);
if (previewTooSmall(pi.base, dim)) {
pi.pain.fillRectangle(x, y - 2 * ERROR_FRAME_WIDTH,
dim.wid, dim.asc + dim.des, backgroundColor(pi));
return;
}
pi.pain.fillRectangle(x + 1, y - dim.asc + 1, dim.wid - 2,
dim.asc + dim.des - 1, pi.backgroundColor(this));
}
void InsetMathHull::draw(PainterInfo & pi, int x, int y) const
{
BufferView const * const bv = pi.base.bv;
Dimension const dim = dimension(*bv);
if (type_ == hullRegexp)
pi.pain.rectangle(x + 2, y - dim.ascent() + 1,
dim.width() - 3, dim.height() - 2, Color_regexpframe);
if (previewState(bv)) {
// Do not draw change tracking cue if taken care of by RowPainter
// already.
Changer dummy = !canPaintChange(*bv) ? make_change(pi.change_, Change())
: Changer();
if (previewTooSmall(pi.base, dim)) {
// we have an extra frame
preview_->draw(pi, x + ERROR_FRAME_WIDTH, y);
} else {
// one pixel gap in front
// value was hardcoded to 1 pixel
int const gap = pi.base.bv->zoomedPixels(1) ;
preview_->draw(pi, x + gap, y);
}
return;
}
// First draw the numbers
if (!pi.full_repaint)
pi.pain.fillRectangle(pi.leftx, y - dim.asc,
pi.rightx - pi.leftx, dim.height(),
pi.background_color);
ColorCode color = pi.selected && lyxrc.use_system_colors
? Color_selectiontext : standardColor();
bool const really_change_color = pi.base.font.color() == Color_none;
Changer dummy0 = really_change_color ? pi.base.font.changeColor(color)
: Changer();
if (numberedType()) {
LATTEST(pi.leftx <pi.rightx);
BufferParams::MathNumber const math_number = buffer().params().getMathNumber();
for (row_type row = 0; row < nrows(); ++row) {
int yy = y + rowinfo(row).offset[bv];
docstring const nl = nicelabel(row);
Dimension dimnl;
mathed_string_dim(pi.base.font, nl, dimnl);
if (math_number == BufferParams::LEFT) {
if (dimnl.wid > x - pi.leftx)
yy += rowinfo(row).descent + dimnl.asc;
pi.draw(pi.leftx, yy, nl);
} else {
if (dimnl.wid > pi.rightx - x - dim.wid)
yy += rowinfo(row).descent + dimnl.asc;
pi.draw(pi.rightx - dimnl.wid, yy, nl);
}
}
}
// Then the equations
Changer dummy1 = pi.base.changeFontSet(standardFont());
Changer dummy2 = pi.base.font.changeStyle(display() ? DISPLAY_STYLE
: TEXT_STYLE);
InsetMathGrid::draw(pi, x + 1, y);
drawMarkers(pi, x, y);
// drawing change line
if (canPaintChange(*bv))
pi.change_.paintCue(pi, x + 1, y + 1 - dim.asc,
x + dim.wid, y + dim.des);
}
void InsetMathHull::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
{
if (display()) {
InsetMathGrid::metricsT(mi, dim);
} else {
odocstringstream os;
otexrowstream ots(os);
WriteStream wi(ots, false, true, WriteStream::wsDefault);
write(wi);
dim.wid = os.str().size();
dim.asc = 1;
dim.des = 0;
}
}
void InsetMathHull::drawT(TextPainter & pain, int x, int y) const
{
if (display()) {
InsetMathGrid::drawT(pain, x, y);
} else {
odocstringstream os;
otexrowstream ots(os);
WriteStream wi(ots, false, true, WriteStream::wsDefault);
write(wi);
pain.draw(x, y, os.str().c_str());
}
}
static docstring latexString(InsetMathHull const & inset)
{
odocstringstream ls;
// This has to be static, because a preview snippet or a math
// macro containing math in text mode (such as $\text{$\phi$}$ or
// \newcommand{\xxx}{\text{$\phi$}}) gets processed twice. The
// first time as a whole, and the second time only the inner math.
// In this last case inset.buffer() would be invalid.
static Encoding const * encoding = 0;
if (inset.isBufferValid())
encoding = &(inset.buffer().params().encoding());
otexrowstream ots(ls);
WriteStream wi(ots, false, true, WriteStream::wsPreview, encoding);
inset.write(wi);
return ls.str();
}
void InsetMathHull::initUnicodeMath() const
{
// Trigger classification of the unicode symbols in this inset
docstring const dummy = latexString(*this);
}
void InsetMathHull::addPreview(DocIterator const & inset_pos,
graphics::PreviewLoader & /*ploader*/) const
{
if (RenderPreview::previewMath()) {
preparePreview(inset_pos);
}
}
void InsetMathHull::usedMacros(MathData const & md, DocIterator const & pos,
MacroNameSet & macros, MacroNameSet & defs) const
{
MacroNameSet::iterator const end = macros.end();
for (size_t i = 0; i < md.size(); ++i) {
InsetMathMacro const * mi = md[i].nucleus()->asMacro();
InsetMathMacroTemplate const * mt = md[i].nucleus()->asMacroTemplate();
InsetMathScript const * si = md[i].nucleus()->asScriptInset();
InsetMathFracBase const * fi = md[i].nucleus()->asFracBaseInset();
InsetMathGrid const * gi = md[i].nucleus()->asGridInset();
InsetMathNest const * ni = md[i].nucleus()->asNestInset();
if (mi) {
// Look for macros in the arguments of this macro.
for (idx_type idx = 0; idx < mi->nargs(); ++idx)
usedMacros(mi->cell(idx), pos, macros, defs);
// Make sure this is a macro defined in the document
// (as we also spot the macros in the symbols file)
// or that we have not already accounted for it.
docstring const name = mi->name();
if (macros.find(name) == end)
continue;
macros.erase(name);
// Look for macros in the definition of this macro.
MathData ar(pos.buffer());
MacroData const * data =
pos.buffer()->getMacro(name, pos, true);
if (data) {
odocstringstream macro_def;
data->write(macro_def, true);
macro_def << endl;
defs.insert(macro_def.str());
asArray(data->definition(), ar);
}
usedMacros(ar, pos, macros, defs);
} else if (mt) {
MathData ar(pos.buffer());
asArray(mt->definition(), ar);
usedMacros(ar, pos, macros, defs);
} else if (si) {
if (!si->nuc().empty())
usedMacros(si->nuc(), pos, macros, defs);
if (si->hasDown())
usedMacros(si->down(), pos, macros, defs);
if (si->hasUp())
usedMacros(si->up(), pos, macros, defs);
} else if (fi || gi) {
idx_type nidx = fi ? fi->nargs() : gi->nargs();
for (idx_type idx = 0; idx < nidx; ++idx)
usedMacros(fi ? fi->cell(idx) : gi->cell(idx),
pos, macros, defs);
} else if (ni) {
usedMacros(ni->cell(0), pos, macros, defs);
}
}
}
void InsetMathHull::preparePreview(DocIterator const & pos,
bool forexport) const
{
// there is no need to do all the macro stuff if we're not
// actually going to generate the preview.
if (!RenderPreview::previewMath() && !forexport)
return;
Buffer const * buffer = pos.buffer();
// collect macros at this position
MacroNameSet macros;
buffer->listMacroNames(macros);
// collect definitions only for the macros used in this inset
MacroNameSet defs;
for (idx_type idx = 0; idx < nargs(); ++idx)
usedMacros(cell(idx), pos, macros, defs);
docstring macro_preamble;
for (auto const & defvar : defs)
macro_preamble.append(defvar);
// set the font series and size for this snippet
DocIterator dit = pos.getInnerText();
Paragraph const & par = dit.paragraph();
Font font = par.getFontSettings(buffer->params(), dit.pos());
font.fontInfo().realize(par.layout().font);
string const lsize = font.latexSize();
docstring setfont;
docstring endfont;
if (font.fontInfo().series() == BOLD_SERIES) {
setfont += from_ascii("\\textbf{");
endfont += '}';
}
if (lsize != "normalsize" && !prefixIs(lsize, "error"))
setfont += from_ascii("\\" + lsize + '\n');
docstring setcnt;
if (forexport && haveNumbers()) {
docstring eqstr = from_ascii("equation");
CounterMap::const_iterator it = counter_map.find(eqstr);
if (it != counter_map.end()) {
int num = it->second;
if (num >= 0)
setcnt += from_ascii("\\setcounter{") + eqstr + '}' +
'{' + convert<docstring>(num) + '}' + '\n';
}
for (size_t i = 0; i != numcnts; ++i) {
docstring cnt = from_ascii(counters_to_save[i]);
it = counter_map.find(cnt);
if (it == counter_map.end())
continue;
int num = it->second;
if (num > 0)
setcnt += from_ascii("\\setcounter{") + cnt + '}' +
'{' + convert<docstring>(num) + '}';
}
}
docstring const snippet = macro_preamble + setfont + setcnt
+ latexString(*this) + endfont;
LYXERR(Debug::MACROS, "Preview snippet: " << snippet);
preview_->addPreview(snippet, *buffer, forexport);
}
void InsetMathHull::reloadPreview(DocIterator const & pos) const
{
preparePreview(pos);
preview_->startLoading(*pos.buffer());
}
void InsetMathHull::loadPreview(DocIterator const & pos) const
{
bool const forexport = true;
preparePreview(pos, forexport);
preview_->startLoading(*pos.buffer(), forexport);
}
bool InsetMathHull::notifyCursorLeaves(Cursor const & old, Cursor & cur)
{
if (RenderPreview::previewMath()) {
reloadPreview(old);
cur.screenUpdateFlags(Update::Force);
}
return false;
}
docstring InsetMathHull::label(row_type row) const
{
LASSERT(row < nrows(), return docstring());
if (InsetLabel * il = label_[row])
return il->screenLabel();
return docstring();
}
void InsetMathHull::label(row_type row, docstring const & label)
{
//lyxerr << "setting label '" << label << "' for row " << row << endl;
if (label_[row]) {
if (label.empty()) {
delete label_[row];
label_[row] = dummy_pointer;
} else {
if (buffer_)
label_[row]->updateLabelAndRefs(label);
else
label_[row]->setParam("name", label);
}
return;
}
InsetCommandParams p(LABEL_CODE);
p["name"] = label;
label_[row] = new InsetLabel(buffer_, p);
if (buffer_)
label_[row]->setBuffer(buffer());
}
void InsetMathHull::numbered(row_type row, Numbered num)
{
numbered_[row] = num;
if (!numbered(row) && label_[row]) {
delete label_[row];
label_[row] = 0;
}
}
bool InsetMathHull::numbered(row_type row) const
{
return numbered_[row] == NUMBER;
}
bool InsetMathHull::ams() const
{
switch (type_) {
case hullAlign:
case hullFlAlign:
case hullMultline:
case hullGather:
case hullAlignAt:
case hullXAlignAt:
case hullXXAlignAt:
return true;
case hullUnknown:
case hullRegexp:
return false;
case hullNone:
case hullSimple:
case hullEquation:
case hullEqnArray:
break;
}
for (size_t row = 0; row < numbered_.size(); ++row)
if (numbered_[row] == NOTAG)
return true;
return false;
}
bool InsetMathHull::outerDisplay() const
{
switch (type_) {
case hullEquation:
case hullEqnArray:
case hullAlign:
case hullFlAlign:
case hullGather:
case hullMultline:
return true;
case hullNone:
case hullSimple:
case hullAlignAt:
case hullXAlignAt:
case hullXXAlignAt:
case hullUnknown:
case hullRegexp:
break;
}
return false;
}
Inset::DisplayType InsetMathHull::display() const
{
switch (type_) {
case hullUnknown:
case hullSimple:
case hullNone:
case hullRegexp:
return Inline;
case hullEqnArray:
case hullAlign:
case hullFlAlign:
case hullAlignAt:
case hullXAlignAt:
case hullXXAlignAt:
case hullEquation:
case hullMultline:
case hullGather:
if (buffer().params().is_math_indent)
return AlignLeft;
else
return AlignCenter;
}
// avoid warning
return AlignCenter;
}
int InsetMathHull::indent(BufferView const & bv) const
{
// FIXME: set this in the textclass. This value is what the article class uses.
static Length default_indent(2.5, Length::EM);
if (display() != Inline && buffer().params().is_math_indent) {
Length const & len = buffer().params().getMathIndent();
if (len.empty())
return bv.inPixels(default_indent);
else
return bv.inPixels(len);
} else
return Inset::indent(bv);
}
bool InsetMathHull::numberedType() const
{
switch (type_) {
case hullUnknown:
case hullNone:
case hullSimple:
case hullXXAlignAt:
case hullRegexp:
return false;
case hullEqnArray:
case hullAlign:
case hullFlAlign:
case hullAlignAt:
case hullXAlignAt:
case hullEquation:
case hullMultline:
case hullGather:
break;
}
for (row_type row = 0; row < nrows(); ++row)
if (numbered(row))
return true;
return false;
}
void InsetMathHull::validate(LaTeXFeatures & features) const
{
if (features.runparams().isLaTeX()) {
if (ams())
features.require("amsmath");
if (type_ == hullRegexp) {
features.require("color");
docstring frcol = from_utf8(lcolor.getLaTeXName(Color_regexpframe));
docstring bgcol = from_ascii("white");
features.addPreambleSnippet(
"\\newcommand{\\regexp}[1]{\\fcolorbox{"
+ frcol + "}{"
+ bgcol + "}{\\ensuremath{\\mathtt{#1}}}}");
features.addPreambleSnippet(
from_ascii("\\newcommand{\\endregexp}{}"));
} else if (outerDisplay() && features.inDeletedInset()
&& !features.mustProvide("ct-dvipost")) {
features.require("ct-tikz-math-sout");
}
// Validation is necessary only if not using AMS math.
// To be safe, we will always run mathedvalidate.
//if (features.amsstyle)
// return;
//features.binom = true;
} else if (features.runparams().math_flavor == OutputParams::MathAsHTML) {
// it would be better to do this elsewhere, but we can't validate in
// InsetMathMatrix and we have no way, outside MathExtern, to know if
// we even have any matrices.
features.addCSSSnippet(
"table.matrix{display: inline-block; vertical-align: middle; text-align:center;}\n"
"table.matrix td{padding: 0.25px;}\n"
"td.ldelim{width: 0.5ex; border: thin solid black; border-right: none;}\n"
"td.rdelim{width: 0.5ex; border: thin solid black; border-left: none;}");
}
InsetMathGrid::validate(features);
}
void InsetMathHull::header_write(WriteStream & os) const
{
bool n = numberedType();
switch(type_) {
case hullNone:
break;
case hullSimple:
if (os.ulemCmd())
os << "\\mbox{";
os << '$';
os.startOuterRow();
if (cell(0).empty())
os << ' ';
break;
case hullEquation:
writeMathdisplayPreamble(os);
os << "\n";
os.startOuterRow();
if (n)
os << "\\begin{equation" << star(n) << "}\n";
else
os << "\\[\n";
break;
case hullEqnArray:
case hullAlign:
case hullFlAlign:
case hullGather:
case hullMultline:
writeMathdisplayPreamble(os);
os << "\n";
os.startOuterRow();
os << "\\begin{" << hullName(type_) << star(n) << "}\n";
break;
case hullAlignAt:
case hullXAlignAt:
os << "\n";
os.startOuterRow();
os << "\\begin{" << hullName(type_) << star(n) << '}'
<< '{' << static_cast<unsigned int>((ncols() + 1)/2) << "}\n";
break;
case hullXXAlignAt:
os << "\n";
os.startOuterRow();
os << "\\begin{" << hullName(type_) << '}'
<< '{' << static_cast<unsigned int>((ncols() + 1)/2) << "}\n";
break;
case hullRegexp:
os << "\\regexp{";
break;
case hullUnknown:
os << "\n";
os.startOuterRow();
os << "\\begin{unknown" << star(n) << "}\n";
break;
}
}
void InsetMathHull::footer_write(WriteStream & os) const
{
bool n = numberedType();
switch(type_) {
case hullNone:
os << "\n";
break;
case hullSimple:
os << '$';
if (os.ulemCmd())
os << "}";
break;
case hullEquation:
os << "\n";
os.startOuterRow();
if (n)
os << "\\end{equation" << star(n) << "}\n";
else
os << "\\]\n";
writeMathdisplayPostamble(os);
break;
case hullEqnArray:
case hullAlign:
case hullFlAlign:
case hullGather:
case hullMultline:
os << "\n";
os.startOuterRow();
os << "\\end{" << hullName(type_) << star(n) << "}\n";
writeMathdisplayPostamble(os);
break;
case hullAlignAt:
case hullXAlignAt:
os << "\n";
os.startOuterRow();
os << "\\end{" << hullName(type_) << star(n) << "}\n";
break;
case hullXXAlignAt:
os << "\n";
os.startOuterRow();
os << "\\end{" << hullName(type_) << "}\n";
break;
case hullRegexp:
// Only used as a heuristic to find the regexp termination, when searching in ignore-format mode
os << "\\endregexp{}}";
break;
case hullUnknown:
os << "\n";
os.startOuterRow();
os << "\\end{unknown" << star(n) << "}\n";
break;
}
}
bool InsetMathHull::allowsTabularFeatures() const
{
switch (type_) {
case hullEqnArray:
case hullAlign:
case hullAlignAt:
case hullXAlignAt:
case hullXXAlignAt:
case hullFlAlign:
case hullMultline:
case hullGather:
return true;
case hullNone:
case hullSimple:
case hullEquation:
case hullRegexp:
case hullUnknown:
break;
}
return false;
}
bool InsetMathHull::rowChangeOK() const
{
return
type_ == hullEqnArray || type_ == hullAlign ||
type_ == hullFlAlign || type_ == hullAlignAt ||
type_ == hullXAlignAt || type_ == hullXXAlignAt ||
type_ == hullGather || type_ == hullMultline;
}
bool InsetMathHull::colChangeOK() const
{
return
type_ == hullAlign || type_ == hullFlAlign ||type_ == hullAlignAt ||
type_ == hullXAlignAt || type_ == hullXXAlignAt;
}
void InsetMathHull::addRow(row_type row)
{
if (!rowChangeOK())
return;
bool numbered = numberedType();
// Move the number and raw pointer, do not call label() (bug 7511)
InsetLabel * label = dummy_pointer;
docstring number = empty_docstring();
if (type_ == hullMultline) {
if (row + 1 == nrows()) {
numbered_[row] = NONUMBER;
swap(label, label_[row]);
swap(number, numbers_[row]);
} else
numbered = false;
}
numbered_.insert(numbered_.begin() + row + 1, numbered ? NUMBER : NONUMBER);
numbers_.insert(numbers_.begin() + row + 1, number);
label_.insert(label_.begin() + row + 1, label);
InsetMathGrid::addRow(row);
}
void InsetMathHull::swapRow(row_type row)
{
if (nrows() <= 1)
return;
if (row + 1 == nrows())
--row;
swap(numbered_[row], numbered_[row + 1]);
swap(numbers_[row], numbers_[row + 1]);
swap(label_[row], label_[row + 1]);
InsetMathGrid::swapRow(row);
}
void InsetMathHull::delRow(row_type row)
{
if (nrows() <= 1 || !rowChangeOK())
return;
if (row + 1 == nrows() && type_ == hullMultline) {
swap(numbered_[row - 1], numbered_[row]);
swap(numbers_[row - 1], numbers_[row]);
swap(label_[row - 1], label_[row]);
InsetMathGrid::delRow(row);
return;
}
InsetMathGrid::delRow(row);
// The last dummy row has no number info nor a label.
// Test nrows() + 1 because we have already erased the row.
if (row == nrows() + 1)
row--;
numbered_.erase(numbered_.begin() + row);
numbers_.erase(numbers_.begin() + row);
delete label_[row];
label_.erase(label_.begin() + row);
}
void InsetMathHull::addCol(col_type col)
{
if (!colChangeOK())
return;
InsetMathGrid::addCol(col);
}
void InsetMathHull::delCol(col_type col)
{
if (ncols() <= 1 || !colChangeOK())
return;
InsetMathGrid::delCol(col);
}
docstring InsetMathHull::nicelabel(row_type row) const
{
if (!numbered(row))
return docstring();
docstring const & val = numbers_[row];
if (!label_[row])
return '(' + val + ')';
return '(' + val + ',' + label_[row]->screenLabel() + ')';
}
void InsetMathHull::glueall(HullType type)
{
MathData ar;
for (idx_type i = 0; i < nargs(); ++i)
ar.append(cell(i));
InsetLabel * label = 0;
if (type == hullEquation) {
// preserve first non-empty label
for (row_type row = 0; row < nrows(); ++row) {
if (label_[row]) {
label = label_[row];
label_[row] = 0;
break;
}
}
}
*this = InsetMathHull(buffer_, hullSimple);
label_[0] = label;
cell(0) = ar;
setDefaults();
}
void InsetMathHull::splitTo2Cols()
{
LASSERT(ncols() == 1, return);
InsetMathGrid::addCol(1);
for (row_type row = 0; row < nrows(); ++row) {
idx_type const i = 2 * row;
pos_type pos = firstRelOp(cell(i));
cell(i + 1) = MathData(buffer_, cell(i).begin() + pos, cell(i).end());
cell(i).erase(pos, cell(i).size());
}
}
void InsetMathHull::splitTo3Cols()
{
LASSERT(ncols() < 3, return);
if (ncols() < 2)
splitTo2Cols();
InsetMathGrid::addCol(2);
for (row_type row = 0; row < nrows(); ++row) {
idx_type const i = 3 * row + 1;
if (!cell(i).empty()) {
cell(i + 1) = MathData(buffer_, cell(i).begin() + 1, cell(i).end());
cell(i).erase(1, cell(i).size());
}
}
}
void InsetMathHull::changeCols(col_type cols)
{
if (ncols() == cols)
return;
else if (ncols() < cols) {
// split columns
if (cols < 3)
splitTo2Cols();
else {
splitTo3Cols();
while (ncols() < cols)
InsetMathGrid::addCol(ncols());
}
return;
}
// combine columns
for (row_type row = 0; row < nrows(); ++row) {
idx_type const i = row * ncols();
for (col_type col = cols; col < ncols(); ++col) {
cell(i + cols - 1).append(cell(i + col));
}
}
// delete columns
while (ncols() > cols) {
InsetMathGrid::delCol(ncols() - 1);
}
}
HullType InsetMathHull::getType() const
{
return type_;
}
void InsetMathHull::setType(HullType type)
{
type_ = type;
setDefaults();
}
bool InsetMathHull::isMutable(HullType type)
{
switch (type) {
case hullNone:
case hullSimple:
case hullEquation:
case hullEqnArray:
case hullAlign:
case hullFlAlign:
case hullAlignAt:
case hullXAlignAt:
case hullXXAlignAt:
case hullMultline:
case hullGather:
return true;
case hullUnknown:
case hullRegexp:
return false;
}
// avoid warning
return false;
}
void InsetMathHull::mutate(HullType newtype)
{
//lyxerr << "mutating from '" << type_ << "' to '" << newtype << "'" << endl;
if (newtype == type_)
return;
// This guards the algorithm below it, which is designed with certain types
// in mind.
if (!isMutable(newtype) || !isMutable(type_)) {
lyxerr << "mutation from '" << to_utf8(hullName(type_))
<< "' to '" << to_utf8(hullName(newtype))
<< "' not implemented" << endl;
return;
}
// we try to move along the chain
// none <-> simple <-> equation <-> eqnarray -> *align* -> multline, gather -+
// ^ |
// +-------------------------------------+
// we use eqnarray as intermediate type for mutations that are not
// directly supported because it handles labels and numbering for
// "down mutation".
switch (type_) {
case hullNone:
setType(hullSimple);
numbered(0, false);
mutate(newtype);
break;
case hullSimple:
if (newtype == hullNone) {
setType(hullNone);
numbered(0, false);
} else {
setType(hullEquation);
numbered(0, label_[0] ? true : false);
mutate(newtype);
}
break;
case hullEquation:
switch (newtype) {
case hullNone:
case hullSimple:
setType(hullSimple);
numbered(0, false);
mutate(newtype);
break;
case hullEqnArray:
// split it "nicely" on the first relop
splitTo3Cols();
setType(hullEqnArray);
break;
case hullMultline:
case hullGather:
setType(newtype);
break;
default:
// *align*
// split it "nicely"
splitTo2Cols();
setType(hullAlign);
mutate(newtype);
break;
}
break;
case hullEqnArray:
switch (newtype) {
case hullNone:
case hullSimple:
case hullEquation:
glueall(newtype);
mutate(newtype);
break;
default:
// align & Co.
changeCols(2);
setType(hullAlign);
mutate(newtype);
break;
}
break;
case hullAlign:
case hullAlignAt:
case hullXAlignAt:
case hullFlAlign:
switch (newtype) {
case hullNone:
case hullSimple:
case hullEquation:
case hullEqnArray:
changeCols(3);
setType(hullEqnArray);
mutate(newtype);
break;
case hullGather:
case hullMultline:
changeCols(1);
setType(newtype);
break;
case hullXXAlignAt:
for (row_type row = 0; row < nrows(); ++row)
numbered(row, false);
setType(newtype);
break;
default:
setType(newtype);
break;
}
break;
case hullXXAlignAt:
for (row_type row = 0; row < nrows(); ++row)
numbered(row, false);
switch (newtype) {
case hullNone:
case hullSimple:
case hullEquation:
case hullEqnArray:
changeCols(3);
setType(hullEqnArray);
mutate(newtype);
break;
case hullGather:
case hullMultline:
changeCols(1);
setType(newtype);
break;
default:
setType(newtype);
break;
}
break;
case hullMultline:
case hullGather:
switch (newtype) {
case hullGather:
case hullMultline:
setType(newtype);
break;
case hullAlign:
case hullFlAlign:
case hullAlignAt:
case hullXAlignAt:
splitTo2Cols();
setType(newtype);
break;
case hullXXAlignAt:
splitTo2Cols();
for (row_type row = 0; row < nrows(); ++row)
numbered(row, false);
setType(newtype);
break;
default:
// first we mutate to EqnArray
splitTo3Cols();
setType(hullEqnArray);
mutate(newtype);
break;
}
break;
default:
// we passed the guard so we should not be here
LYXERR0("Mutation not implemented, but should have been.");
LASSERT(false, return);
break;
}// switch
}
docstring InsetMathHull::eolString(row_type row, bool fragile, bool latex,
bool last_eoln) const
{
docstring res;
if (numberedType()) {
if (label_[row] && numbered(row)) {
docstring const name =
latex ? escape(label_[row]->getParam("name"))
: label_[row]->getParam("name");
res += "\\label{" + name + '}';
}
if (type_ != hullMultline) {
if (numbered_[row] == NONUMBER)
res += "\\nonumber ";
else if (numbered_[row] == NOTAG)
res += "\\notag ";
}
}
// Never add \\ on the last empty line of eqnarray and friends
last_eoln = false;
return res + InsetMathGrid::eolString(row, fragile, latex, last_eoln);
}
void InsetMathHull::write(WriteStream & os) const
{
ModeSpecifier specifier(os, MATH_MODE);
header_write(os);
InsetMathGrid::write(os);
footer_write(os);
}
void InsetMathHull::normalize(NormalStream & os) const
{
os << "[formula " << hullName(type_) << ' ';
InsetMathGrid::normalize(os);
os << "] ";
}
void InsetMathHull::infoize(odocstream & os) const
{
os << bformat(_("Type: %1$s"), hullName(type_));
}
void InsetMathHull::check() const
{
LATTEST(numbered_.size() == nrows());
LATTEST(numbers_.size() == nrows());
LATTEST(label_.size() == nrows());
}
void InsetMathHull::doExtern(Cursor & cur, FuncRequest & func)
{
//FIXME: sort out whether we want std::string or docstring for those
string const lang = func.getArg(0);
docstring extra = from_utf8(func.getArg(1));
if (extra.empty())
extra = from_ascii("noextra");
// replace selection with result of computation
if (reduceSelectionToOneCell(cur)) {
MathData ar;
asArray(grabAndEraseSelection(cur), ar);
lyxerr << "use selection: " << ar << endl;
cur.insert(pipeThroughExtern(lang, extra, ar));
return;
}
// only inline, display or eqnarray math is allowed
switch (getType()) {
case hullSimple:
case hullEquation:
case hullEqnArray:
break;
default:
frontend::Alert::warning(_("Bad math environment"),
_("Computation cannot be performed for AMS "
"math environments.\nChange the math "
"formula type and try again."));
return;
}
MathData eq;
eq.push_back(MathAtom(new InsetMathChar('=')));
// go to first item in line
cur.idx() -= cur.idx() % ncols();
cur.pos() = 0;
if (getType() == hullSimple) {
size_type pos = cur.cell().find_last(eq);
MathData ar;
if (pos == cur.cell().size()) {
ar = cur.cell();
lyxerr << "use whole cell: " << ar << endl;
} else {
ar = MathData(buffer_, cur.cell().begin() + pos + 1, cur.cell().end());
lyxerr << "use partial cell form pos: " << pos << endl;
}
cur.cell().append(eq);
cur.cell().append(pipeThroughExtern(lang, extra, ar));
cur.pos() = cur.lastpos();
return;
}
if (getType() == hullEquation) {
lyxerr << "use equation inset" << endl;
mutate(hullEqnArray);
MathData & ar = cur.cell();
lyxerr << "use cell: " << ar << endl;
++cur.idx();
cur.cell() = eq;
++cur.idx();
cur.cell() = pipeThroughExtern(lang, extra, ar);
// move to end of line
cur.pos() = cur.lastpos();
return;
}
{
lyxerr << "use eqnarray" << endl;
cur.idx() += 2 - cur.idx() % ncols();
cur.pos() = 0;
MathData ar = cur.cell();
lyxerr << "use cell: " << ar << endl;
// FIXME: temporarily disabled
addRow(cur.row());
++cur.idx();
++cur.idx();
cur.cell() = eq;
++cur.idx();
cur.cell() = pipeThroughExtern(lang, extra, ar);
cur.pos() = cur.lastpos();
}
}
void InsetMathHull::doDispatch(Cursor & cur, FuncRequest & cmd)
{
//lyxerr << "action: " << cmd.action() << endl;
switch (cmd.action()) {
case LFUN_FINISHED_BACKWARD:
case LFUN_FINISHED_FORWARD:
case LFUN_FINISHED_RIGHT:
case LFUN_FINISHED_LEFT:
//lyxerr << "action: " << cmd.action() << endl;
InsetMathGrid::doDispatch(cur, cmd);
break;
case LFUN_PARAGRAPH_BREAK:
// just swallow this
break;
case LFUN_NEWLINE_INSERT:
// some magic for the common case
if (type_ == hullSimple || type_ == hullEquation) {
cur.recordUndoInset();
bool const align =
cur.bv().buffer().params().use_package("amsmath") != BufferParams::package_off;
mutate(align ? hullAlign : hullEqnArray);
// mutate() may change labels and such.
cur.forceBufferUpdate();
cur.idx() = nrows() * ncols() - 1;
cur.pos() = cur.lastpos();
}
InsetMathGrid::doDispatch(cur, cmd);
break;
case LFUN_MATH_NUMBER_TOGGLE: {
//lyxerr << "toggling all numbers" << endl;
cur.recordUndoInset();
bool old = numberedType();
if (type_ == hullMultline)
numbered(nrows() - 1, !old);
else
for (row_type row = 0; row < nrows(); ++row)
numbered(row, !old);
cur.message(old ? _("No number") : _("Number"));
cur.forceBufferUpdate();
break;
}
case LFUN_MATH_NUMBER_LINE_TOGGLE: {
cur.recordUndoInset();
row_type r = (type_ == hullMultline) ? nrows() - 1 : cur.row();
bool old = numbered(r);
cur.message(old ? _("No number") : _("Number"));
numbered(r, !old);
cur.forceBufferUpdate();
break;
}
case LFUN_LABEL_INSERT: {
row_type r = (type_ == hullMultline) ? nrows() - 1 : cur.row();
docstring old_label = label(r);
docstring const default_label = from_ascii("eq:");
if (old_label.empty())
old_label = default_label;
InsetCommandParams p(LABEL_CODE);
p["name"] = cmd.argument().empty() ? old_label : cmd.argument();
string const data = InsetCommand::params2string(p);
if (cmd.argument().empty())
cur.bv().showDialog("label", data);
else {
FuncRequest fr(LFUN_INSET_INSERT, data);
dispatch(cur, fr);
}
break;
}
case LFUN_LABEL_COPY_AS_REFERENCE: {
row_type row;
if (cmd.argument().empty() && &cur.inset() == this)
// if there is no argument and we're inside math, we retrieve
// the row number from the cursor position.
row = (type_ == hullMultline) ? nrows() - 1 : cur.row();
else {
// if there is an argument, find the corresponding label, else
// check whether there is at least one label.
for (row = 0; row != nrows(); ++row)
if (numbered(row) && label_[row]
&& (cmd.argument().empty() || label(row) == cmd.argument()))
break;
}
if (row == nrows())
break;
InsetCommandParams p(REF_CODE, "ref");
p["reference"] = label(row);
cap::clearSelection();
cap::copyInset(cur, new InsetRef(buffer_, p), label(row));
break;
}
case LFUN_WORD_DELETE_FORWARD:
case LFUN_CHAR_DELETE_FORWARD:
if (col(cur.idx()) + 1 == ncols()
&& cur.pos() == cur.lastpos()
&& !cur.selection()) {
if (!label(row(cur.idx())).empty()) {
cur.recordUndoInset();
label(row(cur.idx()), docstring());
} else if (numbered(row(cur.idx()))) {
cur.recordUndoInset();
numbered(row(cur.idx()), false);
cur.forceBufferUpdate();
} else {
InsetMathGrid::doDispatch(cur, cmd);
return;
}
} else {
InsetMathGrid::doDispatch(cur, cmd);
return;
}
break;
case LFUN_INSET_INSERT: {
//lyxerr << "arg: " << to_utf8(cmd.argument()) << endl;
// FIXME: this should be cleaned up to use InsetLabel methods directly.
string const name = cmd.getArg(0);
if (name == "label") {
InsetCommandParams p(LABEL_CODE);
InsetCommand::string2params(to_utf8(cmd.argument()), p);
docstring str = p["name"];
cur.recordUndoInset();
row_type const r = (type_ == hullMultline) ? nrows() - 1 : cur.row();
str = trim(str);
if (!str.empty())
numbered(r, true);
docstring old = label(r);
if (str != old) {
if (label_[r])
// The label will take care of the reference update.
label(r, str);
else {
label(r, str);
// Newly created inset so initialize it.
label_[r]->initView();
}
}
cur.forceBufferUpdate();
break;
}
InsetMathGrid::doDispatch(cur, cmd);
return;
}
case LFUN_MATH_EXTERN:
cur.recordUndoInset();
doExtern(cur, cmd);
break;
case LFUN_MATH_MUTATE: {
cur.recordUndoInset();
row_type row = cur.row();
col_type col = cur.col();
mutate(hullType(cmd.argument()));
cur.idx() = row * ncols() + col;
if (cur.idx() > cur.lastidx()) {
cur.idx() = cur.lastidx();
cur.pos() = cur.lastpos();
}
if (cur.pos() > cur.lastpos())
cur.pos() = cur.lastpos();
cur.forceBufferUpdate();
// FIXME: find some more clever handling of the selection,
// i.e. preserve it.
cur.clearSelection();
//cur.dispatched(FINISHED);
break;
}
case LFUN_MATH_DISPLAY: {
cur.recordUndoInset();
mutate(type_ == hullSimple ? hullEquation : hullSimple);
// if the cursor is in a cell that got merged, move it to
// start of the hull inset.
if (cur.idx() > 0) {
cur.idx() = 0;
cur.pos() = 0;
}
if (cur.pos() > cur.lastpos())
cur.pos() = cur.lastpos();
break;
}
case LFUN_TABULAR_FEATURE:
if (!allowsTabularFeatures())
cur.undispatched();
else
InsetMathGrid::doDispatch(cur, cmd);
break;
default:
InsetMathGrid::doDispatch(cur, cmd);
break;
}
}
namespace {
bool allowDisplayMath(Cursor const & cur)
{
LATTEST(cur.depth() > 1);
Cursor tmpcur = cur;
tmpcur.pop();
FuncStatus status;
FuncRequest cmd(LFUN_MATH_DISPLAY);
return tmpcur.getStatus(cmd, status) && status.enabled();
}
} // namespace
bool InsetMathHull::getStatus(Cursor & cur, FuncRequest const & cmd,
FuncStatus & status) const
{
switch (cmd.action()) {
case LFUN_FINISHED_BACKWARD:
case LFUN_FINISHED_FORWARD:
case LFUN_FINISHED_RIGHT:
case LFUN_FINISHED_LEFT:
case LFUN_UP:
case LFUN_DOWN:
case LFUN_NEWLINE_INSERT:
case LFUN_MATH_EXTERN:
// we handle these
status.setEnabled(true);
return true;
// we never allow this in math, and we want to bind enter
// to another actions in command-alternatives
case LFUN_PARAGRAPH_BREAK:
status.setEnabled(false);
return true;
case LFUN_MATH_MUTATE: {
HullType const ht = hullType(cmd.argument());
status.setOnOff(type_ == ht);
status.setEnabled(isMutable(ht) && isMutable(type_));
if (ht != hullSimple && status.enabled())
status.setEnabled(allowDisplayMath(cur));
return true;
}
case LFUN_MATH_DISPLAY: {
status.setEnabled(display() != Inline || allowDisplayMath(cur));
status.setOnOff(display() != Inline);
return true;
}
case LFUN_MATH_NUMBER_TOGGLE:
// FIXME: what is the right test, this or the one of
// LABEL_INSERT?
status.setEnabled(display() != Inline);
status.setOnOff(numberedType());
return true;
case LFUN_MATH_NUMBER_LINE_TOGGLE: {
// FIXME: what is the right test, this or the one of
// LABEL_INSERT?
bool const enable = (type_ == hullMultline)
? (nrows() - 1 == cur.row())
: display() != Inline;
row_type const r = (type_ == hullMultline) ? nrows() - 1 : cur.row();
status.setEnabled(enable);
status.setOnOff(enable && numbered(r));
return true;
}
case LFUN_LABEL_INSERT:
status.setEnabled(type_ != hullSimple);
return true;
case LFUN_LABEL_COPY_AS_REFERENCE: {
bool enabled = false;
if (cmd.argument().empty() && &cur.inset() == this) {
// if there is no argument and we're inside math, we retrieve
// the row number from the cursor position.
row_type row = (type_ == hullMultline) ? nrows() - 1 : cur.row();
enabled = numberedType() && label_[row] && numbered(row);
} else {
// if there is an argument, find the corresponding label, else
// check whether there is at least one label.
for (row_type row = 0; row != nrows(); ++row) {
if (numbered(row) && label_[row] &&
(cmd.argument().empty() || label(row) == cmd.argument())) {
enabled = true;
break;
}
}
}
status.setEnabled(enabled);
return true;
}
case LFUN_INSET_INSERT:
if (cmd.getArg(0) == "label") {
status.setEnabled(type_ != hullSimple);
return true;
}
return InsetMathGrid::getStatus(cur, cmd, status);
case LFUN_TABULAR_FEATURE: {
if (!allowsTabularFeatures())
return false;
string s = cmd.getArg(0);
if (!rowChangeOK()
&& (s == "append-row"
|| s == "delete-row"
|| s == "copy-row")) {
status.message(bformat(
from_utf8(N_("Can't change number of rows in '%1$s'")),
hullName(type_)));
status.setEnabled(false);
return true;
}
if (!colChangeOK()
&& (s == "append-column"
|| s == "delete-column"
|| s == "copy-column")) {
status.message(bformat(
from_utf8(N_("Can't change number of columns in '%1$s'")),
hullName(type_)));
status.setEnabled(false);
return true;
}
if (s == "add-vline-left" || s == "add-vline-right") {
status.message(bformat(
from_utf8(N_("Can't add vertical grid lines in '%1$s'")),
hullName(type_)));
status.setEnabled(false);
return true;
}
if (s == "valign-top" || s == "valign-middle"
|| s == "valign-bottom" || s == "align-left"
|| s == "align-center" || s == "align-right") {
status.setEnabled(false);
return true;
}
return InsetMathGrid::getStatus(cur, cmd, status);
}
default:
return InsetMathGrid::getStatus(cur, cmd, status);
}
}
int InsetMathHull::leftMargin() const
{
return (getType() == hullSimple) ? 0 : InsetMathGrid::leftMargin();
}
int InsetMathHull::rightMargin() const
{
return (getType() == hullSimple) ? 0 : InsetMathGrid::rightMargin();
}
int InsetMathHull::border() const
{
return (getType() == hullSimple) ? 0 : InsetMathGrid::border();
}
/////////////////////////////////////////////////////////////////////
// simply scrap this function if you want
void InsetMathHull::mutateToText()
{
#if 0
// translate to latex
ostringstream os;
latex(os, false, false);
string str = os.str();
// insert this text
Text * lt = view_->cursor().innerText();
string::const_iterator cit = str.begin();
string::const_iterator end = str.end();
for (; cit != end; ++cit)
view_->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
// remove ourselves
//dispatch(LFUN_ESCAPE);
#endif
}
void InsetMathHull::handleFont(Cursor & cur, docstring const & arg,
docstring const & font)
{
// this whole function is a hack and won't work for incremental font
// changes...
cur.recordUndo();
if (cur.inset().asInsetMath()->name() == font)
cur.handleFont(to_utf8(font));
else {
cur.handleNest(createInsetMath(font, cur.buffer()));
cur.insert(arg);
}
}
void InsetMathHull::handleFont2(Cursor & cur, docstring const & arg)
{
cur.recordUndo();
Font font;
bool b;
font.fromString(to_utf8(arg), b);
if (font.fontInfo().color() != Color_inherit) {
MathAtom at = MathAtom(new InsetMathColor(buffer_, true, font.fontInfo().color()));
cur.handleNest(at);
}
}
void InsetMathHull::edit(Cursor & cur, bool front, EntryDirection entry_from)
{
InsetMathNest::edit(cur, front, entry_from);
// The inset formula dimension is not necessarily the same as the
// one of the instant preview image, so we have to indicate to the
// BufferView that a metrics update is needed.
cur.screenUpdateFlags(Update::Force);
}
/////////////////////////////////////////////////////////////////////
#if 0
bool InsetMathHull::searchForward(BufferView * bv, string const & str,
bool, bool)
{
// FIXME: completely broken
static InsetMathHull * lastformula = 0;
static CursorBase current = DocIterator(ibegin(nucleus()));
static MathData ar;
static string laststr;
if (lastformula != this || laststr != str) {
//lyxerr << "reset lastformula to " << this << endl;
lastformula = this;
laststr = str;
current = ibegin(nucleus());
ar.clear();
mathed_parse_cell(ar, str, Parse::NORMAL, &buffer());
} else {
increment(current);
}
//lyxerr << "searching '" << str << "' in " << this << ar << endl;
for (DocIterator it = current; it != iend(nucleus()); increment(it)) {
CursorSlice & top = it.back();
MathData const & a = top.asInsetMath()->cell(top.idx_);
if (a.matchpart(ar, top.pos_)) {
bv->cursor().setSelection(it, ar.size());
current = it;
top.pos_ += ar.size();
bv->update();
return true;
}
}
//lyxerr << "not found!" << endl;
lastformula = 0;
return false;
}
#endif
void InsetMathHull::write(ostream & os) const
{
odocstringstream oss;
otexrowstream ots(oss);
WriteStream wi(ots, false, false, WriteStream::wsDefault);
oss << "Formula ";
write(wi);
os << to_utf8(oss.str());
}
void InsetMathHull::read(Lexer & lex)
{
MathAtom at;
mathed_parse_normal(buffer_, at, lex, Parse::TRACKMACRO);
operator=(*at->asHullInset());
}
bool InsetMathHull::readQuiet(Lexer & lex)
{
MathAtom at;
bool success = mathed_parse_normal(buffer_, at, lex, Parse::QUIET);
if (success)
operator=(*at->asHullInset());
return success;
}
int InsetMathHull::plaintext(odocstringstream & os,
OutputParams const & op, size_t max_length) const
{
// Try enabling this now that there is a flag as requested at #2275.
if (buffer().isExporting() && display()) {
Dimension dim;
TextMetricsInfo mi;
metricsT(mi, dim);
TextPainter tpain(dim.width(), dim.height());
drawT(tpain, 0, dim.ascent());
tpain.show(os, 3);
// reset metrics cache to "real" values
//metrics();
return tpain.textheight();
}
odocstringstream oss;
otexrowstream ots(oss);
Encoding const * const enc = encodings.fromLyXName("utf8");
WriteStream wi(ots, false, true, WriteStream::wsDefault, enc);
// Fix Bug #6139
if (type_ == hullRegexp)
write(wi);
else {
for (row_type r = 0; r < nrows(); ++r) {
for (col_type c = 0; c < ncols(); ++c)
wi << (c == 0 ? "" : "\t") << cell(index(r, c));
// if it's for the TOC, we write just the first line
// and do not include the newline.
if (op.for_toc || op.for_tooltip || oss.str().size() >= max_length)
break;
if (r < nrows() - 1)
wi << "\n";
}
}
docstring const str = oss.str();
os << str;
return str.size();
}
int InsetMathHull::docbook(odocstream & os, OutputParams const & runparams) const
{
MathStream ms(os);
int res = 0;
docstring name;
if (getType() == hullSimple)
name = from_ascii("inlineequation");
else
name = from_ascii("informalequation");
docstring bname = name;
if (!label(0).empty())
bname += " id='" + sgml::cleanID(buffer(), runparams, label(0)) + "'";
++ms.tab(); ms.cr(); ms.os() << '<' << bname << '>';
odocstringstream ls;
otexstream ols(ls);
if (runparams.flavor == OutputParams::XML) {
ms << MTag("alt role='tex' ");
// Workaround for db2latex: db2latex always includes equations with
// \ensuremath{} or \begin{display}\end{display}
// so we strip LyX' math environment
WriteStream wi(ols, false, false, WriteStream::wsDefault, runparams.encoding);
InsetMathGrid::write(wi);
ms << from_utf8(subst(subst(to_utf8(ls.str()), "&", "&amp;"), "<", "&lt;"));
ms << ETag("alt");
ms << MTag("math");
ms << ETag("alt");
ms << MTag("math");
InsetMathGrid::mathmlize(ms);
ms << ETag("math");
} else {
ms << MTag("alt role='tex'");
latex(ols, runparams);
res = ols.texrow().rows();
ms << from_utf8(subst(subst(to_utf8(ls.str()), "&", "&amp;"), "<", "&lt;"));
ms << ETag("alt");
}
ms << from_ascii("<graphic fileref=\"eqn/");
if (!label(0).empty())
ms << sgml::cleanID(buffer(), runparams, label(0));
else
ms << sgml::uniqueID(from_ascii("anon"));
if (runparams.flavor == OutputParams::XML)
ms << from_ascii("\"/>");
else
ms << from_ascii("\">");
ms.cr(); --ms.tab(); ms.os() << "</" << name << '>';
return ms.line() + res;
}
bool InsetMathHull::haveNumbers() const
{
bool havenumbers = false;
// inline formulas are never numbered (bug 7351 part 3)
if (getType() == hullSimple)
return havenumbers;
for (size_t i = 0; i != numbered_.size(); ++i) {
if (numbered(i)) {
havenumbers = true;
break;
}
}
return havenumbers;
}
// FIXME XHTML
// We need to do something about alignment here.
//
// This duplicates code from InsetMathGrid, but
// we need access here to number information,
// and we simply do not have that in InsetMathGrid.
void InsetMathHull::htmlize(HtmlStream & os) const
{
bool const havenumbers = haveNumbers();
bool const havetable = havenumbers || nrows() > 1 || ncols() > 1;
if (!havetable) {
os << cell(index(0, 0));
return;
}
os << MTag("table", "class='mathtable'");
for (row_type row = 0; row < nrows(); ++row) {
os << MTag("tr");
for (col_type col = 0; col < ncols(); ++col) {
os << MTag("td");
os << cell(index(row, col));
os << ETag("td");
}
if (havenumbers) {
os << MTag("td");
docstring const & num = numbers_[row];
if (!num.empty())
os << '(' << num << ')';
os << ETag("td");
}
os << ETag("tr");
}
os << ETag("table");
}
// this duplicates code from InsetMathGrid, but
// we need access here to number information,
// and we simply do not have that in InsetMathGrid.
void InsetMathHull::mathmlize(MathStream & os) const
{
bool const havenumbers = haveNumbers();
bool const havetable = havenumbers || nrows() > 1 || ncols() > 1;
if (havetable)
os << MTag("mtable");
char const * const celltag = havetable ? "mtd" : "mrow";
// FIXME There does not seem to be wide support at the moment
// for mlabeledtr, so we have to use just mtr for now.
// char const * const rowtag = havenumbers ? "mlabeledtr" : "mtr";
char const * const rowtag = "mtr";
for (row_type row = 0; row < nrows(); ++row) {
if (havetable)
os << MTag(rowtag);
for (col_type col = 0; col < ncols(); ++col) {
os << MTag(celltag)
<< cell(index(row, col))
<< ETag(celltag);
}
// fleqn?
if (havenumbers) {
os << MTag("mtd");
docstring const & num = numbers_[row];
if (!num.empty())
os << '(' << num << ')';
os << ETag("mtd");
}
if (havetable)
os << ETag(rowtag);
}
if (havetable)
os << ETag("mtable");
}
void InsetMathHull::mathAsLatex(WriteStream & os) const
{
MathEnsurer ensurer(os, false);
bool havenumbers = haveNumbers();
bool const havetable = havenumbers || nrows() > 1 || ncols() > 1;
if (!havetable) {
os << cell(index(0, 0));
return;
}
os << "<table class='mathtable'>";
for (row_type row = 0; row < nrows(); ++row) {
os << "<tr>";
for (col_type col = 0; col < ncols(); ++col) {
os << "<td class='math'>";
os << cell(index(row, col));
os << "</td>";
}
if (havenumbers) {
os << "<td>";
docstring const & num = numbers_[row];
if (!num.empty())
os << '(' << num << ')';
os << "</td>";
}
os << "</tr>";
}
os << "</table>";
}
docstring InsetMathHull::xhtml(XHTMLStream & xs, OutputParams const & op) const
{
BufferParams::MathOutput const mathtype =
buffer().masterBuffer()->params().html_math_output;
bool success = false;
// we output all the labels just at the beginning of the equation.
// this should be fine.
for (size_t i = 0; i != label_.size(); ++i) {
InsetLabel const * const il = label_[i];
if (!il)
continue;
il->xhtml(xs, op);
}
// FIXME Eventually we would like to do this inset by inset.
if (mathtype == BufferParams::MathML) {
odocstringstream os;
MathStream ms(os);
try {
mathmlize(ms);
success = true;
} catch (MathExportException const &) {}
if (success) {
if (getType() == hullSimple)
xs << html::StartTag("math",
"xmlns=\"http://www.w3.org/1998/Math/MathML\"", true);
else
xs << html::StartTag("math",
"display=\"block\" xmlns=\"http://www.w3.org/1998/Math/MathML\"", true);
xs << XHTMLStream::ESCAPE_NONE
<< os.str()
<< html::EndTag("math");
}
} else if (mathtype == BufferParams::HTML) {
odocstringstream os;
HtmlStream ms(os);
try {
htmlize(ms);
success = true;
} catch (MathExportException const &) {}
if (success) {
string const tag = (getType() == hullSimple) ? "span" : "div";
xs << html::StartTag(tag, "class='formula'", true)
<< XHTMLStream::ESCAPE_NONE
<< os.str()
<< html::EndTag(tag);
}
}
// what we actually want is this:
// if (
// ((mathtype == BufferParams::MathML || mathtype == BufferParams::HTML)
// && !success)
// || mathtype == BufferParams::Images
// )
// but what follows is equivalent, since we'll enter only if either (a) we
// tried and failed with MathML or HTML or (b) didn't try yet at all but
// aren't doing LaTeX.
//
// so this is for Images.
if (!success && mathtype != BufferParams::LaTeX) {
graphics::PreviewImage const * pimage = 0;
if (!op.dryrun) {
loadPreview(docit_);
pimage = preview_->getPreviewImage(buffer());
// FIXME Do we always have png?
}
if (pimage || op.dryrun) {
string const filename = pimage ? pimage->filename().onlyFileName()
: "previewimage.png";
if (pimage) {
// if we are not in the master buffer, then we need to see that the
// generated image is copied there; otherwise, preview fails.
Buffer const * mbuf = buffer().masterBuffer();
if (mbuf != &buffer()) {
string mbtmp = mbuf->temppath();
FileName const mbufimg(support::addName(mbtmp, filename));
pimage->filename().copyTo(mbufimg);
}
// add the file to the list of files to be exported
op.exportdata->addExternalFile("xhtml", pimage->filename());
}
string const tag = (getType() == hullSimple) ? "span" : "div";
xs << html::CR()
<< html::StartTag(tag, "style = \"text-align: center;\"")
<< html::CompTag("img", "src=\"" + filename + "\" alt=\"Mathematical Equation\"")
<< html::EndTag(tag)
<< html::CR();
success = true;
}
}
// so we'll pass this test if we've failed everything else, or
// if mathtype was LaTeX, since we won't have entered any of the
// earlier branches
if (!success /* || mathtype != BufferParams::LaTeX */) {
// Unfortunately, we cannot use latexString() because we do not want
// $...$ or whatever.
odocstringstream ls;
otexrowstream ots(ls);
WriteStream wi(ots, false, true, WriteStream::wsPreview);
ModeSpecifier specifier(wi, MATH_MODE);
mathAsLatex(wi);
docstring const latex = ls.str();
// class='math' allows for use of jsMath
// http://www.math.union.edu/~dpvc/jsMath/
// FIXME XHTML
// probably should allow for some kind of customization here
string const tag = (getType() == hullSimple) ? "span" : "div";
xs << html::StartTag(tag, "class='math'")
<< latex
<< html::EndTag(tag)
<< html::CR();
}
return docstring();
}
void InsetMathHull::toString(odocstream & os) const
{
odocstringstream ods;
plaintext(ods, OutputParams(0));
os << ods.str();
}
void InsetMathHull::forOutliner(docstring & os, size_t const, bool const) const
{
odocstringstream ods;
OutputParams op(0);
op.for_toc = true;
// FIXME: this results in spilling TeX into the LyXHTML output since the
// outliner is used to generate the LyXHTML list of figures/etc.
plaintext(ods, op);
os += ods.str();
}
string InsetMathHull::contextMenuName() const
{
return "context-math";
}
void InsetMathHull::recordLocation(DocIterator const & di)
{
docit_ = di;
}
bool InsetMathHull::canPaintChange(BufferView const &) const
{
// We let RowPainter do it seamlessly for inline insets
return display() != Inline;
}
} // namespace lyx
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