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lyx_mirror/src/mathed/InsetMathHull.cpp

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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 "Cursor.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 "Paragraph.h"
#include "ParIterator.h"
#include "xml.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/PreviewImage.h"
#include "graphics/PreviewLoader.h"
#include "frontends/alert.h"
#include "frontends/FontMetrics.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/Changer.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(TeXMathStream & os)
{
if (os.strikeoutMath())
return;
if (os.ulemCmd() == TeXMathStream::UNDERLINE)
os << "\\raisebox{-\\belowdisplayshortskip}{"
"\\parbox[b]{\\linewidth}{";
else if (os.ulemCmd() == TeXMathStream::STRIKEOUT)
os << "\\parbox{\\linewidth}{";
}
// writes a postamble for underlined or struck out math display
void writeMathdisplayPostamble(TeXMathStream & os)
{
if (os.strikeoutMath())
return;
if (os.ulemCmd() == TeXMathStream::UNDERLINE)
os << "}}\\\\\n";
else if (os.ulemCmd() == TeXMathStream::STRIKEOUT)
os << "}\\\\\n";
}
} // namespace
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 (auto & i : label_)
delete 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 (auto & i : label_)
delete 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, bool const deleted)
{
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, deleted);
}
// pass down
InsetMathGrid::updateBuffer(it, utype, deleted);
}
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);
}
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));
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(Dimension const & dim)
{
return dim.width() <= 10 && dim.height() <= 10;
}
}
void InsetMathHull::metrics(MetricsInfo & mi, Dimension & dim) const
{
/* Compute \(above|below)displayskip
true value in LaTeX is 10pt plus 2pt minus 5pt (in normal size at 10pt)
But we use a fixed number of pixels and scale them with zoom.
*/
int const bottom_display_margin = mi.base.bv->zoomedPixels(6);
int top_display_margin = bottom_display_margin;
// at start of paragraph, add an empty line
if (mi.vmode)
top_display_margin += theFontMetrics(mi.base.font).maxHeight() + 2;
if (previewState(mi.base.bv)) {
preview_->metrics(mi, dim);
if (previewTooSmall(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 += top_display_margin;
dim.des += bottom_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 += top_display_margin;
dim.des += bottom_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(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.getX11HexName(Color_mathbg) == lcolor.getX11HexName(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(dim)) {
pi.pain.fillRectangle(x, y - 2 * ERROR_FRAME_WIDTH,
dim.wid, dim.asc + dim.des, backgroundColor(pi));
return;
}
// If there are numbers, the margins around the (displayed)
// equation have to be cleared.
if (numberedType())
pi.pain.fillRectangle(pi.leftx, y - dim.asc,
pi.rightx - pi.leftx, dim.height(), pi.background_color);
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) ? changeVar(pi.change, Change())
: noChange();
if (previewTooSmall(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
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)
: noChange();
if (numberedType()) {
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)) {
// like in metrics()
int const display_margin = display() ? pi.base.inPixels(Length(12, Length::PT)) : 0;
pi.change.paintCue(pi, x + 1, y + 1 - dim.asc + display_margin,
x + dim.wid, y + dim.des - display_margin);
}
}
void InsetMathHull::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
{
if (display()) {
InsetMathGrid::metricsT(mi, dim);
} else {
odocstringstream os;
otexrowstream ots(os);
TeXMathStream wi(ots, false, true, TeXMathStream::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);
TeXMathStream wi(ots, false, true, TeXMathStream::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);
TeXMathStream wi(ots, false, true, TeXMathStream::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 (auto const & row : numbered_)
if (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::RowFlags InsetMathHull::rowFlags() 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 Display | AlignLeft;
else
return Display;
}
// avoid warning
return Display;
}
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() && 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.require("tikz");
features.require("ct-tikz-object-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);
}
CtObject InsetMathHull::getCtObject(OutputParams const & runparams) const
{
CtObject res = CtObject::Normal;
switch(type_) {
case hullNone:
case hullSimple:
case hullAlignAt:
case hullXAlignAt:
case hullXXAlignAt:
case hullRegexp:
case hullUnknown:
break;
case hullEquation:
case hullEqnArray:
case hullAlign:
case hullFlAlign:
case hullGather:
case hullMultline: {
if (runparams.inulemcmd
&& (!runparams.local_font || runparams.local_font->fontInfo().strikeout() != FONT_ON))
res = CtObject::UDisplayObject;
else
res = CtObject::DisplayObject;
break;
}
}
return res;
}
void InsetMathHull::header_write(TeXMathStream & os) const
{
bool n = numberedType();
switch(type_) {
case hullNone:
break;
case hullSimple:
if (os.ulemCmd())
os << "\\mbox{";
os << '$';
os.startOuterRow();
if (cell(0).empty())
os << ' ';
break;
case hullEquation:
writeMathdisplayPreamble(os);
os << "\n";
os.startOuterRow();
if (n)
os << "\\begin{equation" << star(n) << "}\n";
else
os << "\\[\n";
break;
case hullEqnArray:
case hullAlign:
case hullFlAlign:
case hullGather:
case hullMultline:
writeMathdisplayPreamble(os);
os << "\n";
os.startOuterRow();
os << "\\begin{" << hullName(type_) << star(n) << "}\n";
break;
case hullAlignAt:
case hullXAlignAt:
os << "\n";
os.startOuterRow();
os << "\\begin{" << hullName(type_) << star(n) << '}'
<< '{' << static_cast<unsigned int>((ncols() + 1)/2) << "}\n";
break;
case hullXXAlignAt:
os << "\n";
os.startOuterRow();
os << "\\begin{" << hullName(type_) << '}'
<< '{' << static_cast<unsigned int>((ncols() + 1)/2) << "}\n";
break;
case hullRegexp:
os << "\\regexp{";
break;
case hullUnknown:
os << "\n";
os.startOuterRow();
os << "\\begin{unknown" << star(n) << "}\n";
break;
}
}
void InsetMathHull::footer_write(TeXMathStream & os) const
{
bool n = numberedType();
switch(type_) {
case hullNone:
os << "\n";
break;
case hullSimple:
os << '$';
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] != nullptr);
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(TeXMathStream & 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() || allowDisplayMath(cur));
status.setOnOff(display());
return true;
}
case LFUN_MATH_NUMBER_TOGGLE:
// FIXME: what is the right test, this or the one of
// LABEL_INSERT?
status.setEnabled(display());
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();
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);
TeXMathStream wi(ots, false, false, TeXMathStream::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");
TeXMathStream wi(ots, false, true, TeXMathStream::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();
}
void InsetMathHull::docbook(XMLStream & xs, OutputParams const & runparams) const {
// Choose the tag around the MathML equation.
docstring name;
bool doCR = false;
if (getType() == hullSimple)
name = from_ascii("inlineequation");
else {
doCR = true; // This is a block equation, always have <informalequation> on its own line.
name = from_ascii("informalequation");
}
// DocBook also has <equation>, but it comes with a title.
// TODO: recognise \tag from amsmath? This would allow having <equation> with a proper title.
docstring attr;
bool mathmlNamespaceInline = buffer().params().docbook_mathml_prefix == BufferParams::NoPrefix;
if (mathmlNamespaceInline)
attr += "xmlns=\"http://www.w3.org/1998/Math/MathML\"";
for (row_type i = 0; i < nrows(); ++i) {
if (!label(i).empty()) {
if (!attr.empty())
attr += " ";
attr += "xml:id=\"" + xml::cleanID(label(i)) + "\"";
break;
}
}
if (doCR)
if (!xs.isLastTagCR())
xs << xml::CR();
xs << xml::StartTag(name, attr);
xs << xml::CR();
// With DocBook 5, MathML must be within its own namespace (defined in Buffer.cpp::writeDocBookSource, except when
// it should be inlined).
// Output everything in a separate stream so that this does not interfere with the standard flow of DocBook tags.
std::string mathmlNamespacePrefix;
if (!mathmlNamespaceInline) {
if (buffer().params().docbook_mathml_prefix == BufferParams::MPrefix)
mathmlNamespacePrefix = "m";
else if (buffer().params().docbook_mathml_prefix == BufferParams::MMLPrefix)
mathmlNamespacePrefix = "mml";
}
odocstringstream osmath;
MathMLStream ms(osmath, mathmlNamespacePrefix, true);
// Output the MathML subtree.
// TeX transcription. Avoid MTag/ETag so that there are no extraneous spaces.
ms << "<" << from_ascii("alt") << " role='tex'" << ">";
// Workaround for db2latex: db2latex always includes equations with
// \ensuremath{} or \begin{display}\end{display}
// so we strip LyX' math environment
odocstringstream ls;
otexstream ols(ls);
TeXMathStream wi(ols, false, false, TeXMathStream::wsDefault, runparams.encoding);
InsetMathGrid::write(wi);
ms << from_utf8(subst(subst(to_utf8(ls.str()), "&", "&amp;"), "<", "&lt;"));
ms << "</" << from_ascii("alt") << ">";
// Actual transformation of the formula into MathML. This translation may fail (for example, due to custom macros).
// The new output stream is required to deal with the errors: first write completely the formula into this
// temporary stream; then, if it is possible without error, then copy it back to the "real" stream. Otherwise,
// some incomplete tags might be put into the real stream.
try {
// First, generate the MathML expression. If there is an error in the generation, this block is not fully
// executed, and the formula is not output to the DocBook stream.
odocstringstream ostmp;
MathMLStream mstmp(ostmp, ms.xmlns(), ms.xmlMode());
mathmlize(mstmp);
// Choose the display style for the formula, to be output as an attribute near the formula root.
std::string mathmlAttr;
if (getType() == hullSimple)
mathmlAttr = "display=\"inline\"";
else
mathmlAttr = "display=\"block\"";
// Then, output the formula.
ms << MTag("math", mathmlAttr);
ms.cr();
osmath << ostmp.str(); // osmath is not a XMLStream, so no need for XMLStream::ESCAPE_NONE.
ms << ETag("math");
} catch (MathExportException const &) {
ms.cr();
osmath << "<mathphrase>MathML export failed. Please report this as a bug to the LyX developers: "
"https://www.lyx.org/trac.</mathphrase>";
}
// Output the complete formula to the DocBook stream.
xs << XMLStream::ESCAPE_NONE << osmath.str();
xs << xml::CR();
xs << xml::EndTag(name);
if (doCR)
xs << xml::CR();
}
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(MathMLStream & ms) const
{
bool const havenumbers = haveNumbers();
bool const havetable = havenumbers || nrows() > 1 || ncols() > 1;
if (havetable) {
if (getType() == hullSimple)
ms << MTag("mtable");
else if (getType() >= hullAlign && getType() <= hullXXAlignAt)
ms << MTag("mtable", "displaystyle='true' columnalign='right left'");
else
ms << MTag("mtable", "displaystyle='true'");
}
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)
ms << MTag(rowtag);
for (col_type col = 0; col < ncols(); ++col) {
ms << MTag(celltag)
<< cell(index(row, col))
<< ETag(celltag);
}
// fleqn?
if (havenumbers) {
ms << MTag("mtd");
docstring const & num = numbers_[row];
if (!num.empty())
ms << MTagInline("mtext") << '(' << num << ')' << ETagInline("mtext");
ms << ETag("mtd");
}
if (havetable)
ms << ETag(rowtag);
}
if (havetable)
ms << ETag("mtable");
}
void InsetMathHull::mathAsLatex(TeXMathStream & 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(XMLStream & 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;
MathMLStream ms(os);
try {
mathmlize(ms);
success = true;
} catch (MathExportException const &) {}
if (success) {
if (getType() == hullSimple)
xs << xml::StartTag("math",
"xmlns=\"http://www.w3.org/1998/Math/MathML\"", true);
else
xs << xml::StartTag("math",
"display=\"block\" xmlns=\"http://www.w3.org/1998/Math/MathML\"", true);
xs << XMLStream::ESCAPE_NONE
<< os.str()
<< xml::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 << xml::StartTag(tag, "class='formula'", true)
<< XMLStream::ESCAPE_NONE
<< os.str()
<< xml::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 << xml::CR()
<< xml::StartTag(tag, "style = \"text-align: center;\"")
<< xml::CompTag("img", "src=\"" + filename + "\" alt=\"Mathematical Equation\"")
<< xml::EndTag(tag)
<< xml::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);
TeXMathStream wi(ots, false, true, TeXMathStream::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 << xml::StartTag(tag, "class='math'")
<< latex
<< xml::EndTag(tag)
<< xml::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();
}
} // namespace lyx
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