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lyx_mirror/src/mathed/InsetMathGrid.cpp
Richard Heck 30b18aec37 The beginnings of pure HTML output of math, for our internal XHTML 
output routines. The idea is that in some cases people may not want to
use MathML, so we are going to try to give options.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@33936 a592a061-630c-0410-9148-cb99ea01b6c8
2010-03-29 22:52:13 +00:00

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/**
* \file InsetMathGrid.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 <algorithm>
#include "InsetMathGrid.h"
#include "MathData.h"
#include "MathParser.h"
#include "MathStream.h"
#include "MetricsInfo.h"
#include "Buffer.h"
#include "BufferView.h"
#include "CutAndPaste.h"
#include "FuncStatus.h"
#include "Cursor.h"
#include "FuncRequest.h"
#include "frontends/Clipboard.h"
#include "frontends/FontMetrics.h"
#include "frontends/Painter.h"
#include "support/debug.h"
#include "support/docstream.h"
#include "support/gettext.h"
#include "support/lstrings.h"
#include "support/lassert.h"
#include <sstream>
using namespace std;
using namespace lyx::support;
namespace lyx {
static docstring verboseHLine(int n)
{
docstring res;
for (int i = 0; i < n; ++i)
res += "\\hline";
if (n)
res += ' ';
return res;
}
static int extractInt(istream & is)
{
int num = 1;
is >> num;
return (num == 0) ? 1 : num;
}
static void resetGrid(InsetMathGrid & grid)
{
while (grid.ncols() > 1)
grid.delCol(grid.ncols());
while (grid.nrows() > 1)
grid.delRow(grid.nrows());
grid.cell(0).erase(0, grid.cell(0).size());
grid.setDefaults();
}
//////////////////////////////////////////////////////////////
InsetMathGrid::CellInfo::CellInfo()
: dummy_(false)
{}
//////////////////////////////////////////////////////////////
InsetMathGrid::RowInfo::RowInfo()
: lines_(0), skip_(0), allow_newpage_(true)
{}
int InsetMathGrid::RowInfo::skipPixels(MetricsInfo const & mi) const
{
frontend::FontMetrics const & fm = theFontMetrics(mi.base.font);
return crskip_.inPixels(mi.base.textwidth,
fm.width(char_type('M')));
}
//////////////////////////////////////////////////////////////
InsetMathGrid::ColInfo::ColInfo()
: align_('c'), lines_(0)
{}
//////////////////////////////////////////////////////////////
InsetMathGrid::InsetMathGrid(Buffer * buf)
: InsetMathNest(buf, 1),
rowinfo_(1 + 1),
colinfo_(1 + 1),
cellinfo_(1),
v_align_('c')
{
setDefaults();
}
InsetMathGrid::InsetMathGrid(Buffer * buf, col_type m, row_type n)
: InsetMathNest(buf, m * n),
rowinfo_(n + 1),
colinfo_(m + 1),
cellinfo_(m * n),
v_align_('c')
{
setDefaults();
}
InsetMathGrid::InsetMathGrid(Buffer * buf, col_type m, row_type n, char v,
docstring const & h)
: InsetMathNest(buf, m * n),
rowinfo_(n + 1),
colinfo_(m + 1),
cellinfo_(m * n),
v_align_(v)
{
setDefaults();
setVerticalAlignment(v);
setHorizontalAlignments(h);
}
Inset * InsetMathGrid::clone() const
{
return new InsetMathGrid(*this);
}
InsetMath::idx_type InsetMathGrid::index(row_type row, col_type col) const
{
return col + ncols() * row;
}
void InsetMathGrid::setDefaults()
{
if (ncols() <= 0)
lyxerr << "positive number of columns expected" << endl;
//if (nrows() <= 0)
// lyxerr << "positive number of rows expected" << endl;
for (col_type col = 0; col < ncols(); ++col) {
colinfo_[col].align_ = defaultColAlign(col);
colinfo_[col].skip_ = defaultColSpace(col);
colinfo_[col].special_.clear();
}
}
void InsetMathGrid::setHorizontalAlignments(docstring const & hh)
{
col_type col = 0;
for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it) {
char_type c = *it;
if (c == '|') {
colinfo_[col].lines_++;
} else if ((c == 'p' || c == 'm' || c == 'b'||
c == '!' || c == '@' || c == '>' || c == '<') &&
it + 1 != hh.end() && *(it + 1) == '{') {
// @{decl.} and p{width} are standard LaTeX, the
// others are extensions by array.sty
bool const newcolumn = c == 'p' || c == 'm' || c == 'b';
if (newcolumn) {
// this declares a new column
if (col >= ncols())
// Only intercolumn stuff is allowed
// in the last dummy column
break;
colinfo_[col].align_ = 'l';
} else {
// this is intercolumn stuff
if (colinfo_[col].special_.empty())
// Overtake possible lines
colinfo_[col].special_ = docstring(colinfo_[col].lines_, '|');
}
int brace_open = 0;
int brace_close = 0;
while (it != hh.end()) {
c = *it;
colinfo_[col].special_ += c;
if (c == '{')
++brace_open;
else if (c == '}')
++brace_close;
++it;
if (brace_open > 0 && brace_open == brace_close)
break;
}
--it;
if (newcolumn) {
colinfo_[col].lines_ = count(
colinfo_[col].special_.begin(),
colinfo_[col].special_.end(), '|');
LYXERR(Debug::MATHED, "special column separator: `"
<< to_utf8(colinfo_[col].special_) << '\'');
++col;
colinfo_[col].lines_ = 0;
colinfo_[col].special_.clear();
}
} else if (col >= ncols()) {
// Only intercolumn stuff is allowed in the last
// dummy column
break;
} else if (c == 'c' || c == 'l' || c == 'r') {
colinfo_[col].align_ = static_cast<char>(c);
if (!colinfo_[col].special_.empty()) {
colinfo_[col].special_ += c;
colinfo_[col].lines_ = count(
colinfo_[col].special_.begin(),
colinfo_[col].special_.end(), '|');
LYXERR(Debug::MATHED, "special column separator: `"
<< to_utf8(colinfo_[col].special_) << '\'');
}
++col;
colinfo_[col].lines_ = 0;
colinfo_[col].special_.clear();
} else {
lyxerr << "unknown column separator: '" << c << "'" << endl;
}
}
/*
col_type n = hh.size();
if (n > ncols())
n = ncols();
for (col_type col = 0; col < n; ++col)
colinfo_[col].align_ = hh[col];
*/
}
InsetMathGrid::col_type InsetMathGrid::guessColumns(docstring const & hh)
{
col_type col = 0;
for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it)
if (*it == 'c' || *it == 'l' || *it == 'r'||
*it == 'p' || *it == 'm' || *it == 'b')
++col;
// let's have at least one column, even if we did not recognize its
// alignment
if (col == 0)
col = 1;
return col;
}
void InsetMathGrid::setHorizontalAlignment(char h, col_type col)
{
colinfo_[col].align_ = h;
if (!colinfo_[col].special_.empty()) {
char_type & c = colinfo_[col].special_[colinfo_[col].special_.size() - 1];
if (c == 'l' || c == 'c' || c == 'r')
c = h;
}
// FIXME: Change alignment of p, m and b columns, too
}
char InsetMathGrid::horizontalAlignment(col_type col) const
{
return colinfo_[col].align_;
}
docstring InsetMathGrid::horizontalAlignments() const
{
docstring res;
for (col_type col = 0; col < ncols(); ++col) {
if (colinfo_[col].special_.empty()) {
res += docstring(colinfo_[col].lines_, '|');
res += colinfo_[col].align_;
} else
res += colinfo_[col].special_;
}
if (colinfo_[ncols()].special_.empty())
return res + docstring(colinfo_[ncols()].lines_, '|');
return res + colinfo_[ncols()].special_;
}
void InsetMathGrid::setVerticalAlignment(char c)
{
v_align_ = c;
}
char InsetMathGrid::verticalAlignment() const
{
return v_align_;
}
InsetMathGrid::col_type InsetMathGrid::ncols() const
{
return colinfo_.size() - 1;
}
InsetMathGrid::row_type InsetMathGrid::nrows() const
{
return rowinfo_.size() - 1;
}
InsetMathGrid::col_type InsetMathGrid::col(idx_type idx) const
{
return idx % ncols();
}
InsetMathGrid::row_type InsetMathGrid::row(idx_type idx) const
{
return idx / ncols();
}
void InsetMathGrid::vcrskip(Length const & crskip, row_type row)
{
rowinfo_[row].crskip_ = crskip;
}
Length InsetMathGrid::vcrskip(row_type row) const
{
return rowinfo_[row].crskip_;
}
void InsetMathGrid::metrics(MetricsInfo & mi, Dimension & dim) const
{
// let the cells adjust themselves
InsetMathNest::metrics(mi);
BufferView & bv = *mi.base.bv;
// compute absolute sizes of vertical structure
for (row_type row = 0; row < nrows(); ++row) {
int asc = 0;
int desc = 0;
for (col_type col = 0; col < ncols(); ++col) {
Dimension const & dimc = cell(index(row, col)).dimension(bv);
asc = max(asc, dimc.asc);
desc = max(desc, dimc.des);
}
rowinfo_[row].ascent_ = asc;
rowinfo_[row].descent_ = desc;
}
rowinfo_[0].ascent_ += hlinesep() * rowinfo_[0].lines_;
rowinfo_[nrows()].ascent_ = 0;
rowinfo_[nrows()].descent_ = 0;
// compute vertical offsets
rowinfo_[0].offset_ = 0;
for (row_type row = 1; row <= nrows(); ++row) {
rowinfo_[row].offset_ =
rowinfo_[row - 1].offset_ +
rowinfo_[row - 1].descent_ +
rowinfo_[row - 1].skipPixels(mi) +
rowsep() +
rowinfo_[row].lines_ * hlinesep() +
rowinfo_[row].ascent_;
}
// adjust vertical offset
int h = 0;
switch (v_align_) {
case 't':
h = 0;
break;
case 'b':
h = rowinfo_[nrows() - 1].offset_;
break;
default:
h = rowinfo_[nrows() - 1].offset_ / 2;
}
for (row_type row = 0; row <= nrows(); ++row)
rowinfo_[row].offset_ -= h;
// compute absolute sizes of horizontal structure
for (col_type col = 0; col < ncols(); ++col) {
int wid = 0;
for (row_type row = 0; row < nrows(); ++row)
wid = max(wid, cell(index(row, col)).dimension(bv).wid);
colinfo_[col].width_ = wid;
}
colinfo_[ncols()].width_ = 0;
// compute horizontal offsets
colinfo_[0].offset_ = border();
for (col_type col = 1; col <= ncols(); ++col) {
colinfo_[col].offset_ =
colinfo_[col - 1].offset_ +
colinfo_[col - 1].width_ +
colinfo_[col - 1].skip_ +
colsep() +
colinfo_[col].lines_ * vlinesep();
}
dim.wid = colinfo_[ncols() - 1].offset_
+ colinfo_[ncols() - 1].width_
+ vlinesep() * colinfo_[ncols()].lines_
+ border();
dim.asc = - rowinfo_[0].offset_
+ rowinfo_[0].ascent_
+ hlinesep() * rowinfo_[0].lines_
+ border();
dim.des = rowinfo_[nrows() - 1].offset_
+ rowinfo_[nrows() - 1].descent_
+ hlinesep() * rowinfo_[nrows()].lines_
+ border();
/*
// Increase ws_[i] for 'R' columns (except the first one)
for (int i = 1; i < nc_; ++i)
if (align_[i] == 'R')
ws_[i] += 10 * df_width;
// Increase ws_[i] for 'C' column
if (align_[0] == 'C')
if (ws_[0] < 7 * workwidth / 8)
ws_[0] = 7 * workwidth / 8;
// Adjust local tabs
width = colsep();
for (cxrow = row_.begin(); cxrow; ++cxrow) {
int rg = COLSEP;
int lf = 0;
for (int i = 0; i < nc_; ++i) {
bool isvoid = false;
if (cxrow->getTab(i) <= 0) {
cxrow->setTab(i, df_width);
isvoid = true;
}
switch (align_[i]) {
case 'l':
lf = 0;
break;
case 'c':
lf = (ws_[i] - cxrow->getTab(i))/2;
break;
case 'r':
case 'R':
lf = ws_[i] - cxrow->getTab(i);
break;
case 'C':
if (cxrow == row_.begin())
lf = 0;
else if (cxrow.is_last())
lf = ws_[i] - cxrow->getTab(i);
else
lf = (ws_[i] - cxrow->getTab(i))/2;
break;
}
int const ww = (isvoid) ? lf : lf + cxrow->getTab(i);
cxrow->setTab(i, lf + rg);
rg = ws_[i] - ww + colsep();
if (cxrow == row_.begin())
width += ws_[i] + colsep();
}
cxrow->setBaseline(cxrow->getBaseline() - ascent);
}
*/
metricsMarkers2(dim);
// Cache the inset dimension.
setDimCache(mi, dim);
}
void InsetMathGrid::draw(PainterInfo & pi, int x, int y) const
{
drawWithMargin(pi, x, y, 1, 1);
}
void InsetMathGrid::drawWithMargin(PainterInfo & pi, int x, int y,
int lmargin, int rmargin) const
{
Dimension const dim = dimension(*pi.base.bv);
BufferView const & bv = *pi.base.bv;
for (idx_type idx = 0; idx < nargs(); ++idx)
cell(idx).draw(pi, x + lmargin + cellXOffset(bv, idx),
y + cellYOffset(idx));
for (row_type row = 0; row <= nrows(); ++row)
for (unsigned int i = 0; i < rowinfo_[row].lines_; ++i) {
int yy = y + rowinfo_[row].offset_ - rowinfo_[row].ascent_
- i * hlinesep() - hlinesep()/2 - rowsep()/2;
pi.pain.line(x + lmargin + 1, yy,
x + dim.width() - rmargin - 1, yy,
Color_foreground);
}
for (col_type col = 0; col <= ncols(); ++col)
for (unsigned int i = 0; i < colinfo_[col].lines_; ++i) {
int xx = x + lmargin + colinfo_[col].offset_
- i * vlinesep() - vlinesep()/2 - colsep()/2;
pi.pain.line(xx, y - dim.ascent() + 1,
xx, y + dim.descent() - 1,
Color_foreground);
}
drawMarkers2(pi, x, y);
}
void InsetMathGrid::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
{
// let the cells adjust themselves
//InsetMathNest::metrics(mi);
for (idx_type i = 0; i < nargs(); ++i)
cell(i).metricsT(mi, dim);
// compute absolute sizes of vertical structure
for (row_type row = 0; row < nrows(); ++row) {
int asc = 0;
int desc = 0;
for (col_type col = 0; col < ncols(); ++col) {
//MathData const & c = cell(index(row, col));
// FIXME: BROKEN!
Dimension dimc;
asc = max(asc, dimc.ascent());
desc = max(desc, dimc.descent());
}
rowinfo_[row].ascent_ = asc;
rowinfo_[row].descent_ = desc;
}
//rowinfo_[0].ascent_ += hlinesep() * rowinfo_[0].lines_;
rowinfo_[nrows()].ascent_ = 0;
rowinfo_[nrows()].descent_ = 0;
// compute vertical offsets
rowinfo_[0].offset_ = 0;
for (row_type row = 1; row <= nrows(); ++row) {
rowinfo_[row].offset_ =
rowinfo_[row - 1].offset_ +
rowinfo_[row - 1].descent_ +
//rowinfo_[row - 1].skipPixels(mi) +
1 + //rowsep() +
//rowinfo_[row].lines_ * hlinesep() +
rowinfo_[row].ascent_;
}
// adjust vertical offset
int h = 0;
switch (v_align_) {
case 't':
h = 0;
break;
case 'b':
h = rowinfo_[nrows() - 1].offset_;
break;
default:
h = rowinfo_[nrows() - 1].offset_ / 2;
}
for (row_type row = 0; row <= nrows(); ++row)
rowinfo_[row].offset_ -= h;
// compute absolute sizes of horizontal structure
for (col_type col = 0; col < ncols(); ++col) {
int wid = 0;
for (row_type row = 0; row < nrows(); ++row) {
// FIXME: BROKEN!
//wid = max(wid, cell(index(row, col)).width());
}
colinfo_[col].width_ = wid;
}
colinfo_[ncols()].width_ = 0;
// compute horizontal offsets
colinfo_[0].offset_ = border();
for (col_type col = 1; col <= ncols(); ++col) {
colinfo_[col].offset_ =
colinfo_[col - 1].offset_ +
colinfo_[col - 1].width_ +
colinfo_[col - 1].skip_ +
1 ; //colsep() +
//colinfo_[col].lines_ * vlinesep();
}
dim.wid = colinfo_[ncols() - 1].offset_
+ colinfo_[ncols() - 1].width_
//+ vlinesep() * colinfo_[ncols()].lines_
+ 2;
dim.asc = -rowinfo_[0].offset_
+ rowinfo_[0].ascent_
//+ hlinesep() * rowinfo_[0].lines_
+ 1;
dim.des = rowinfo_[nrows() - 1].offset_
+ rowinfo_[nrows() - 1].descent_
//+ hlinesep() * rowinfo_[nrows()].lines_
+ 1;
}
void InsetMathGrid::drawT(TextPainter & /*pain*/, int /*x*/, int /*y*/) const
{
// for (idx_type idx = 0; idx < nargs(); ++idx)
// cell(idx).drawT(pain, x + cellXOffset(idx), y + cellYOffset(idx));
}
void InsetMathGrid::updateBuffer(ParIterator const & it, UpdateType utype)
{
// pass down
for (idx_type idx = 0; idx < nargs(); ++idx)
cell(idx).updateBuffer(it, utype);
}
docstring InsetMathGrid::eolString(row_type row, bool fragile) const
{
docstring eol;
if (!rowinfo_[row].crskip_.zero())
eol += '[' + from_utf8(rowinfo_[row].crskip_.asLatexString()) + ']';
else if(!rowinfo_[row].allow_newpage_)
eol += '*';
// make sure an upcoming '[' does not break anything
if (row + 1 < nrows()) {
MathData const & c = cell(index(row + 1, 0));
if (c.size() && c.front()->getChar() == '[')
//eol += "[0pt]";
eol += "{}";
}
// only add \\ if necessary
if (eol.empty() && row + 1 == nrows())
return docstring();
return (fragile ? "\\protect\\\\" : "\\\\") + eol;
}
docstring InsetMathGrid::eocString(col_type col, col_type lastcol) const
{
if (col + 1 == lastcol)
return docstring();
return from_ascii(" & ");
}
void InsetMathGrid::addRow(row_type row)
{
rowinfo_.insert(rowinfo_.begin() + row + 1, RowInfo());
cells_.insert
(cells_.begin() + (row + 1) * ncols(), ncols(), MathData());
cellinfo_.insert
(cellinfo_.begin() + (row + 1) * ncols(), ncols(), CellInfo());
}
void InsetMathGrid::appendRow()
{
rowinfo_.push_back(RowInfo());
//cells_.insert(cells_.end(), ncols(), MathData());
for (col_type col = 0; col < ncols(); ++col) {
cells_.push_back(cells_type::value_type());
cellinfo_.push_back(CellInfo());
}
}
void InsetMathGrid::delRow(row_type row)
{
if (nrows() == 1)
return;
cells_type::iterator it = cells_.begin() + row * ncols();
cells_.erase(it, it + ncols());
vector<CellInfo>::iterator jt = cellinfo_.begin() + row * ncols();
cellinfo_.erase(jt, jt + ncols());
rowinfo_.erase(rowinfo_.begin() + row);
}
void InsetMathGrid::copyRow(row_type row)
{
addRow(row);
for (col_type col = 0; col < ncols(); ++col)
cells_[(row + 1) * ncols() + col] = cells_[row * ncols() + col];
}
void InsetMathGrid::swapRow(row_type row)
{
if (nrows() == 1)
return;
if (row + 1 == nrows())
--row;
for (col_type col = 0; col < ncols(); ++col)
swap(cells_[row * ncols() + col], cells_[(row + 1) * ncols() + col]);
}
void InsetMathGrid::addCol(col_type newcol)
{
const col_type nc = ncols();
const row_type nr = nrows();
cells_type new_cells((nc + 1) * nr);
vector<CellInfo> new_cellinfo((nc + 1) * nr);
for (row_type row = 0; row < nr; ++row)
for (col_type col = 0; col < nc; ++col) {
new_cells[row * (nc + 1) + col + (col >= newcol)]
= cells_[row * nc + col];
new_cellinfo[row * (nc + 1) + col + (col >= newcol)]
= cellinfo_[row * nc + col];
}
swap(cells_, new_cells);
swap(cellinfo_, new_cellinfo);
ColInfo inf;
inf.skip_ = defaultColSpace(newcol);
inf.align_ = defaultColAlign(newcol);
colinfo_.insert(colinfo_.begin() + newcol, inf);
}
void InsetMathGrid::delCol(col_type col)
{
if (ncols() == 1)
return;
cells_type tmpcells;
vector<CellInfo> tmpcellinfo;
for (col_type i = 0; i < nargs(); ++i)
if (i % ncols() != col) {
tmpcells.push_back(cells_[i]);
tmpcellinfo.push_back(cellinfo_[i]);
}
swap(cells_, tmpcells);
swap(cellinfo_, tmpcellinfo);
colinfo_.erase(colinfo_.begin() + col);
}
void InsetMathGrid::copyCol(col_type col)
{
addCol(col+1);
for (row_type row = 0; row < nrows(); ++row)
cells_[row * ncols() + col + 1] = cells_[row * ncols() + col];
}
void InsetMathGrid::swapCol(col_type col)
{
if (ncols() == 1)
return;
if (col + 1 == ncols())
--col;
for (row_type row = 0; row < nrows(); ++row)
swap(cells_[row * ncols() + col], cells_[row * ncols() + col + 1]);
}
int InsetMathGrid::cellXOffset(BufferView const & bv, idx_type idx) const
{
col_type c = col(idx);
int x = colinfo_[c].offset_;
char align = colinfo_[c].align_;
Dimension const & celldim = cell(idx).dimension(bv);
if (align == 'r' || align == 'R')
x += colinfo_[c].width_ - celldim.wid;
if (align == 'c' || align == 'C')
x += (colinfo_[c].width_ - celldim.wid) / 2;
return x;
}
int InsetMathGrid::cellYOffset(idx_type idx) const
{
return rowinfo_[row(idx)].offset_;
}
bool InsetMathGrid::idxUpDown(Cursor & cur, bool up) const
{
if (up) {
if (cur.row() == 0)
return false;
cur.idx() -= ncols();
} else {
if (cur.row() + 1 >= nrows())
return false;
cur.idx() += ncols();
}
cur.pos() = cur.cell().x2pos(&cur.bv(), cur.x_target() - cur.cell().xo(cur.bv()));
return true;
}
bool InsetMathGrid::idxBackward(Cursor & cur) const
{
// leave matrix if at the front edge
if (cur.col() == 0)
return false;
--cur.idx();
cur.pos() = cur.lastpos();
return true;
}
bool InsetMathGrid::idxForward(Cursor & cur) const
{
// leave matrix if at the back edge
if (cur.col() + 1 == ncols())
return false;
++cur.idx();
cur.pos() = 0;
return true;
}
bool InsetMathGrid::idxFirst(Cursor & cur) const
{
switch (v_align_) {
case 't':
cur.idx() = 0;
break;
case 'b':
cur.idx() = (nrows() - 1) * ncols();
break;
default:
cur.idx() = ((nrows() - 1) / 2) * ncols();
}
cur.pos() = 0;
return true;
}
bool InsetMathGrid::idxLast(Cursor & cur) const
{
switch (v_align_) {
case 't':
cur.idx() = ncols() - 1;
break;
case 'b':
cur.idx() = nargs() - 1;
break;
default:
cur.idx() = ((nrows() - 1) / 2 + 1) * ncols() - 1;
}
cur.pos() = cur.lastpos();
return true;
}
bool InsetMathGrid::idxDelete(idx_type & idx)
{
// nothing to do if we have just one row
if (nrows() == 1)
return false;
// nothing to do if we are in the middle of the last row of the inset
if (idx + ncols() > nargs())
return false;
// try to delete entire sequence of ncols() empty cells if possible
for (idx_type i = idx; i < idx + ncols(); ++i)
if (cell(i).size())
return false;
// move cells if necessary
for (idx_type i = index(row(idx), 0); i < idx; ++i)
swap(cell(i), cell(i + ncols()));
delRow(row(idx));
if (idx >= nargs())
idx = nargs() - 1;
// undo effect of Ctrl-Tab (i.e. pull next cell)
//if (idx + 1 != nargs())
// cell(idx).swap(cell(idx + 1));
// we handled the event..
return true;
}
// reimplement old behaviour when pressing Delete in the last position
// of a cell
void InsetMathGrid::idxGlue(idx_type idx)
{
col_type c = col(idx);
if (c + 1 == ncols()) {
if (row(idx) + 1 != nrows()) {
for (col_type cc = 0; cc < ncols(); ++cc)
cell(idx).append(cell(idx + cc + 1));
delRow(row(idx) + 1);
}
} else {
cell(idx).append(cell(idx + 1));
for (col_type cc = c + 2; cc < ncols(); ++cc)
cell(idx - c + cc - 1) = cell(idx - c + cc);
cell(idx - c + ncols() - 1).clear();
}
}
InsetMathGrid::RowInfo const & InsetMathGrid::rowinfo(row_type row) const
{
return rowinfo_[row];
}
InsetMathGrid::RowInfo & InsetMathGrid::rowinfo(row_type row)
{
return rowinfo_[row];
}
bool InsetMathGrid::idxBetween(idx_type idx, idx_type from, idx_type to) const
{
row_type const ri = row(idx);
row_type const r1 = min(row(from), row(to));
row_type const r2 = max(row(from), row(to));
col_type const ci = col(idx);
col_type const c1 = min(col(from), col(to));
col_type const c2 = max(col(from), col(to));
return r1 <= ri && ri <= r2 && c1 <= ci && ci <= c2;
}
void InsetMathGrid::normalize(NormalStream & os) const
{
os << "[grid ";
for (row_type row = 0; row < nrows(); ++row) {
os << "[row ";
for (col_type col = 0; col < ncols(); ++col)
os << "[cell " << cell(index(row, col)) << ']';
os << ']';
}
os << ']';
}
void InsetMathGrid::mathmlize(MathStream & os) const
{
bool const havetable = nrows() > 1 || ncols() > 1;
if (havetable)
os << MTag("mtable");
char const * const celltag = havetable ? "mtd" : "mrow";
for (row_type row = 0; row < nrows(); ++row) {
if (havetable)
os << MTag("mtr");;
for (col_type col = 0; col < ncols(); ++col) {
os << MTag(celltag);
os << cell(index(row, col));
os << ETag(celltag);
}
if (havetable)
os << ETag("mtr");;
}
if (havetable)
os << ETag("mtable");
}
void InsetMathGrid::htmlize(HtmlStream & os) const
{
bool const havetable = 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");
}
os << ETag("tr");;
}
os << ETag("table");
}
void InsetMathGrid::write(WriteStream & os) const
{
write(os, 0, 0, nrows(), ncols());
}
void InsetMathGrid::write(WriteStream & os,
row_type beg_row, col_type beg_col,
row_type end_row, col_type end_col) const
{
MathEnsurer ensurer(os, false);
docstring eol;
for (row_type row = beg_row; row < end_row; ++row) {
os << verboseHLine(rowinfo_[row].lines_);
// don't write & and empty cells at end of line,
// unless there are vertical lines
col_type lastcol = 0;
bool emptyline = true;
for (col_type col = beg_col; col < end_col; ++col)
if (!cell(index(row, col)).empty()
|| colinfo_[col + 1].lines_) {
lastcol = col + 1;
emptyline = false;
}
for (col_type col = beg_col; col < lastcol; ++col) {
os << cell(index(row, col));
if (os.pendingBrace())
ModeSpecifier specifier(os, TEXT_MODE);
os << eocString(col, lastcol);
}
eol = eolString(row, os.fragile());
os << eol;
// append newline only if line wasn't completely empty
// and the formula is not written on a single line
bool const empty = emptyline && eol.empty();
if (!empty && nrows() > 1)
os << "\n";
}
// @TODO use end_row instead of nrows() ?
docstring const s = verboseHLine(rowinfo_[nrows()].lines_);
if (!s.empty()) {
if (eol.empty()) {
if (os.fragile())
os << "\\protect";
os << "\\\\";
}
os << s;
}
}
int InsetMathGrid::colsep() const
{
return 6;
}
int InsetMathGrid::rowsep() const
{
return 6;
}
int InsetMathGrid::hlinesep() const
{
return 3;
}
int InsetMathGrid::vlinesep() const
{
return 3;
}
int InsetMathGrid::border() const
{
return 1;
}
void InsetMathGrid::splitCell(Cursor & cur)
{
if (cur.idx() == cur.lastidx())
return;
MathData ar = cur.cell();
ar.erase(0, cur.pos());
cur.cell().erase(cur.pos(), cur.lastpos());
++cur.idx();
cur.pos() = 0;
cur.cell().insert(0, ar);
}
void InsetMathGrid::doDispatch(Cursor & cur, FuncRequest & cmd)
{
//lyxerr << "*** InsetMathGrid: request: " << cmd << endl;
Parse::flags parseflg = Parse::QUIET | Parse::USETEXT;
switch (cmd.action) {
// insert file functions
case LFUN_LINE_DELETE:
cur.recordUndoInset();
//autocorrect_ = false;
//macroModeClose();
//if (selection_) {
// selDel();
// break;
//}
if (nrows() > 1)
delRow(cur.row());
if (cur.idx() > cur.lastidx())
cur.idx() = cur.lastidx();
if (cur.pos() > cur.lastpos())
cur.pos() = cur.lastpos();
break;
case LFUN_CELL_SPLIT:
cur.recordUndo();
splitCell(cur);
break;
case LFUN_CELL_BACKWARD:
// See below.
cur.setSelection(false);
if (!idxPrev(cur)) {
cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
cur.undispatched();
}
break;
case LFUN_CELL_FORWARD:
// Can't handle selection by additional 'shift' as this is
// hard bound to LFUN_CELL_BACKWARD
cur.setSelection(false);
if (!idxNext(cur)) {
cmd = FuncRequest(LFUN_FINISHED_FORWARD);
cur.undispatched();
}
break;
case LFUN_NEWLINE_INSERT: {
cur.recordUndoInset();
row_type const r = cur.row();
addRow(r);
// split line
for (col_type c = col(cur.idx()) + 1; c < ncols(); ++c)
swap(cell(index(r, c)), cell(index(r + 1, c)));
// split cell
splitCell(cur);
swap(cell(cur.idx()), cell(cur.idx() + ncols() - 1));
if (cur.idx() > 0)
--cur.idx();
cur.pos() = cur.lastpos();
//mathcursor->normalize();
//cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
break;
}
case LFUN_INSET_MODIFY: {
cur.recordUndoInset();
//lyxerr << "handling tabular-feature " << to_utf8(cmd.argument()) << endl;
istringstream is(to_utf8(cmd.argument()));
string s;
is >> s;
if (s != "tabular") {
InsetMathNest::doDispatch(cur, cmd);
return;
}
is >> s;
if (s == "valign-top")
setVerticalAlignment('t');
else if (s == "valign-middle")
setVerticalAlignment('c');
else if (s == "valign-bottom")
setVerticalAlignment('b');
else if (s == "align-left")
setHorizontalAlignment('l', cur.col());
else if (s == "align-right")
setHorizontalAlignment('r', cur.col());
else if (s == "align-center")
setHorizontalAlignment('c', cur.col());
else if (s == "append-row")
for (int i = 0, n = extractInt(is); i < n; ++i)
addRow(cur.row());
else if (s == "delete-row") {
cur.clearSelection(); // bug 4323
for (int i = 0, n = extractInt(is); i < n; ++i) {
delRow(cur.row());
if (cur.idx() >= nargs())
cur.idx() -= ncols();
}
cur.pos() = 0; // trick, see below
}
else if (s == "copy-row") {
// Here (as later) we save the cursor col/row
// in order to restore it after operation.
row_type const r = cur.row();
col_type const c = cur.col();
for (int i = 0, n = extractInt(is); i < n; ++i)
copyRow(cur.row());
cur.idx() = index(r, c);
}
else if (s == "swap-row") {
swapRow(cur.row());
// Trick to suppress same-idx-means-different-cell
// assertion crash:
cur.pos() = 0;
}
else if (s == "add-hline-above")
rowinfo_[cur.row()].lines_++;
else if (s == "add-hline-below")
rowinfo_[cur.row()+1].lines_++;
else if (s == "delete-hline-above")
rowinfo_[cur.row()].lines_--;
else if (s == "delete-hline-below")
rowinfo_[cur.row()+1].lines_--;
else if (s == "append-column") {
row_type const r = cur.row();
col_type const c = cur.col();
for (int i = 0, n = extractInt(is); i < n; ++i)
addCol(cur.col() + 1);
cur.idx() = index(r, c);
}
else if (s == "delete-column") {
cur.clearSelection(); // bug 4323
row_type const r = cur.row();
col_type const c = cur.col();
for (int i = 0, n = extractInt(is); i < n; ++i)
delCol(col(cur.idx()));
cur.idx() = index(r, min(c, cur.ncols() - 1));
cur.pos() = 0; // trick, see above
}
else if (s == "copy-column") {
row_type const r = cur.row();
col_type const c = cur.col();
copyCol(cur.col());
cur.idx() = index(r, c);
}
else if (s == "swap-column") {
swapCol(cur.col());
cur.pos() = 0; // trick, see above
}
else if (s == "add-vline-left") {
colinfo_[cur.col()].lines_++;
if (!colinfo_[cur.col()].special_.empty())
colinfo_[cur.col()].special_ += '|';
}
else if (s == "add-vline-right") {
colinfo_[cur.col()+1].lines_++;
if (!colinfo_[cur.col()+1].special_.empty())
colinfo_[cur.col()+1].special_.insert(0, 1, '|');
}
else if (s == "delete-vline-left") {
colinfo_[cur.col()].lines_--;
docstring & special = colinfo_[cur.col()].special_;
if (!special.empty()) {
docstring::size_type i = special.rfind('|');
LASSERT(i != docstring::npos, /**/);
special.erase(i, 1);
}
}
else if (s == "delete-vline-right") {
colinfo_[cur.col()+1].lines_--;
docstring & special = colinfo_[cur.col()+1].special_;
if (!special.empty()) {
docstring::size_type i = special.find('|');
LASSERT(i != docstring::npos, /**/);
special.erase(i, 1);
}
}
else {
cur.undispatched();
break;
}
// perhaps this should be FINISHED_BACKWARD -- just for clarity?
//lyxerr << "returning FINISHED_LEFT" << endl;
break;
}
case LFUN_CLIPBOARD_PASTE:
parseflg |= Parse::VERBATIM;
// fall through
case LFUN_PASTE: {
if (cur.currentMode() <= TEXT_MODE)
parseflg |= Parse::TEXTMODE;
cur.message(_("Paste"));
cap::replaceSelection(cur);
docstring topaste;
if (cmd.argument().empty() && !theClipboard().isInternal())
topaste = theClipboard().getAsText();
else {
idocstringstream is(cmd.argument());
int n = 0;
is >> n;
topaste = cap::selection(n);
}
InsetMathGrid grid(buffer_, 1, 1);
if (!topaste.empty())
if ((topaste.size() == 1 && topaste.at(0) < 0x80)
|| !mathed_parse_normal(grid, topaste, parseflg)) {
resetGrid(grid);
mathed_parse_normal(grid, topaste, parseflg | Parse::VERBATIM);
}
if (grid.nargs() == 1) {
// single cell/part of cell
cur.recordUndo();
cur.cell().insert(cur.pos(), grid.cell(0));
cur.pos() += grid.cell(0).size();
} else {
// multiple cells
cur.recordUndoInset();
col_type const numcols =
min(grid.ncols(), ncols() - col(cur.idx()));
row_type const numrows =
min(grid.nrows(), nrows() - cur.row());
for (row_type r = 0; r < numrows; ++r) {
for (col_type c = 0; c < numcols; ++c) {
idx_type i = index(r + cur.row(), c + col(cur.idx()));
cell(i).insert(0, grid.cell(grid.index(r, c)));
}
// append the left over horizontal cells to the last column
idx_type i = index(r + cur.row(), ncols() - 1);
for (InsetMath::col_type c = numcols; c < grid.ncols(); ++c)
cell(i).append(grid.cell(grid.index(r, c)));
}
// append the left over vertical cells to the last _cell_
idx_type i = nargs() - 1;
for (row_type r = numrows; r < grid.nrows(); ++r)
for (col_type c = 0; c < grid.ncols(); ++c)
cell(i).append(grid.cell(grid.index(r, c)));
}
cur.clearSelection(); // bug 393
// FIXME audit setBuffer/updateBuffer calls
cur.inset().setBuffer(*buffer_);
// FIXME audit setBuffer/updateBuffer calls
cur.buffer()->updateBuffer();
cur.finishUndo();
break;
}
case LFUN_LINE_BEGIN_SELECT:
case LFUN_LINE_BEGIN:
case LFUN_WORD_BACKWARD_SELECT:
case LFUN_WORD_BACKWARD:
case LFUN_WORD_LEFT_SELECT:
case LFUN_WORD_LEFT:
cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT ||
cmd.action == LFUN_WORD_LEFT_SELECT ||
cmd.action == LFUN_LINE_BEGIN_SELECT);
cur.macroModeClose();
if (cur.pos() != 0) {
cur.pos() = 0;
} else if (cur.idx() % cur.ncols() != 0) {
cur.idx() -= cur.idx() % cur.ncols();
cur.pos() = 0;
} else if (cur.idx() != 0) {
cur.idx() = 0;
cur.pos() = 0;
} else {
cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
cur.undispatched();
}
break;
case LFUN_WORD_FORWARD_SELECT:
case LFUN_WORD_FORWARD:
case LFUN_WORD_RIGHT_SELECT:
case LFUN_WORD_RIGHT:
case LFUN_LINE_END_SELECT:
case LFUN_LINE_END:
cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT ||
cmd.action == LFUN_WORD_RIGHT_SELECT ||
cmd.action == LFUN_LINE_END_SELECT);
cur.macroModeClose();
cur.clearTargetX();
if (cur.pos() != cur.lastpos()) {
cur.pos() = cur.lastpos();
} else if ((cur.idx() + 1) % cur.ncols() != 0) {
cur.idx() += cur.ncols() - 1 - cur.idx() % cur.ncols();
cur.pos() = cur.lastpos();
} else if (cur.idx() != cur.lastidx()) {
cur.idx() = cur.lastidx();
cur.pos() = cur.lastpos();
} else {
cmd = FuncRequest(LFUN_FINISHED_FORWARD);
cur.undispatched();
}
break;
default:
InsetMathNest::doDispatch(cur, cmd);
}
}
bool InsetMathGrid::getStatus(Cursor & cur, FuncRequest const & cmd,
FuncStatus & status) const
{
switch (cmd.action) {
case LFUN_INSET_MODIFY: {
istringstream is(to_utf8(cmd.argument()));
string s;
is >> s;
if (s != "tabular") {
// We only now about table actions here.
break;
}
if (&cur.inset() != this) {
// Table actions requires that the cursor is _inside_ the
// table.
status.setEnabled(false);
status.message(from_utf8(N_("Cursor not in table")));
return true;
}
is >> s;
if (nrows() <= 1 && (s == "delete-row" || s == "swap-row")) {
status.setEnabled(false);
status.message(from_utf8(N_("Only one row")));
return true;
}
if (ncols() <= 1 &&
(s == "delete-column" || s == "swap-column")) {
status.setEnabled(false);
status.message(from_utf8(N_("Only one column")));
return true;
}
if ((rowinfo_[cur.row()].lines_ == 0 &&
s == "delete-hline-above") ||
(rowinfo_[cur.row() + 1].lines_ == 0 &&
s == "delete-hline-below")) {
status.setEnabled(false);
status.message(from_utf8(N_("No hline to delete")));
return true;
}
if ((colinfo_[cur.col()].lines_ == 0 &&
s == "delete-vline-left") ||
(colinfo_[cur.col() + 1].lines_ == 0 &&
s == "delete-vline-right")) {
status.setEnabled(false);
status.message(from_utf8(N_("No vline to delete")));
return true;
}
if (s == "valign-top" || s == "valign-middle" ||
s == "valign-bottom" || s == "align-left" ||
s == "align-right" || s == "align-center") {
status.setEnabled(true);
char const ha = horizontalAlignment(cur.col());
char const va = verticalAlignment();
status.setOnOff((s == "align-left" && ha == 'l')
|| (s == "align-right" && ha == 'r')
|| (s == "align-center" && ha == 'c')
|| (s == "valign-top" && va == 't')
|| (s == "valign-bottom" && va == 'b')
|| (s == "valign-middle" && va == 'c'));
return true;
}
if (s == "append-row" || s == "delete-row" ||
s == "copy-row" || s == "swap-row" ||
s == "add-hline-above" || s == "add-hline-below" ||
s == "delete-hline-above" || s == "delete-hline-below" ||
s == "append-column" || s == "delete-column" ||
s == "copy-column" || s == "swap-column" ||
s == "add-vline-left" || s == "add-vline-right" ||
s == "delete-vline-left" || s == "delete-vline-right") {
status.setEnabled(true);
} else {
status.setEnabled(false);
status.message(bformat(
from_utf8(N_("Unknown tabular feature '%1$s'")), lyx::from_ascii(s)));
}
#if 0
// FIXME: What did this code do?
// Please check whether it is still needed!
// should be more precise
if (v_align_ == '\0') {
status.enable(true);
break;
}
if (cmd.argument().empty()) {
status.enable(false);
break;
}
if (!contains("tcb", cmd.argument()[0])) {
status.enable(false);
break;
}
status.setOnOff(cmd.argument()[0] == v_align_);
status.setEnabled(true);
#endif
return true;
}
case LFUN_CELL_SPLIT:
status.setEnabled(true);
return true;
case LFUN_CELL_BACKWARD:
case LFUN_CELL_FORWARD:
status.setEnabled(true);
return true;
default:
break;
}
return InsetMathNest::getStatus(cur, cmd, status);
}
} // namespace lyx
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