- byte cxp = 0;
- int xp = 0;
- int asc = df_asc, des = 0;
- bool limits = false;
-
- xo = x; yo = y;
- if (!array || array->empty()) {
- if (array) {
- MathedXIter data(this);
- data.GetPos(x, y);
- }
- pain.rectangle(x, y - df_asc, df_width, df_asc, LColor::mathline);
- return;
- }
- MathedXIter data(this);
- data.GoBegin();
- while (data.OK()) {
- data.GetPos(x, y);
- byte cx = data.GetChar();
- if (cx >= ' ') {
- string s = data.GetString();
- drawStr(pain, data.FCode(), size, x, y, s);
- mathed_char_height(LM_TC_CONST, size, 'y', asc, des);
- limits = false;
- }
- else {
- if (cx == 0)
- break;
- if (MathIsInset(cx)) {
- int yy = y;
- MathedInset * p = data.GetInset();
- if (cx == LM_TC_UP) {
- if (limits) {
- x -= (xp>p->Width()) ? p->Width()+(xp-p->Width())/2: xp;
- yy -= (asc + p->Descent()+4);
- }
- else
- yy -= (p->Descent()>asc) ? p->Descent()+4: asc;
- }
- else if (cx == LM_TC_DOWN) {
- if (limits) {
- x -= (xp>p->Width()) ? p->Width()+(xp-p->Width())/2: xp;
- yy += des + p->Ascent() + 2;
- } else
- yy += des + p->Ascent()/2;
- }
- else {
- asc = p->Ascent();
- des = p->Descent();
- }
- p->draw(pain, x, yy);
- if (cx!= LM_TC_UP && cx!= LM_TC_DOWN) {
- limits = p->GetLimits();
- if (limits)
- xp = p->Width();
- }
- data.Next();
- }
- else if (cx == LM_TC_TAB) {
- if (cxp == cx || cxp == LM_TC_CR || data.IsFirst()) {
- pain.rectangle(x, y - df_asc, df_width, df_asc, LColor::mathline);
- }
- data.Next();
- limits = false;
- }
- else if (cx == LM_TC_CR) {
- if (cxp == LM_TC_TAB || cxp == LM_TC_CR || data.IsFirst()) {
- pain.rectangle(x, y - df_asc, df_width, df_asc, LColor::mathline);
- }
- data.Next();
- limits = false;
- }
- else {
- lyxerr << "GMathed Error: Unrecognized code[" << cx << "]" << endl;
- break;
- }
- }
- cxp = cx;
- }
- if (cxp == LM_TC_TAB || cxp == LM_TC_CR) {
- data.GetPos(x, y);
- pain.rectangle(x, y - df_asc, df_width, df_asc, LColor::mathline);
- }
-}
-
-
-void
-MathParInset::Metrics()
-{
- byte cx;
- byte cxp = 0;
- int ls;
- int asc = df_asc;
- int des = 0;
- int tb = 0;
- int tab = 0;
-
- bool limits = false;
-
- ascent = df_asc;//mathed_char_height(LM_TC_VAR, size, 'I', asc, des);
- width = df_width;
- descent = 0;
- if (!array) return;
- if (array->empty()) return;
-
- ascent = 0;
- MathedXIter data(this);
- data.GoBegin();
- while (data.OK()) {
- cx = data.GetChar();
- if (cx >= ' ') {
- string s = data.GetString();
- mathed_string_height(data.FCode(), size, s, asc, des);
- if (asc > ascent) ascent = asc;
- if (des > descent) descent = des;
- limits = false;
- mathed_char_height(LM_TC_CONST, size, 'y', asc, des);
- } else
- if (MathIsInset(cx)) {
- MathedInset * p = data.GetInset();
- p->SetStyle(size);
- p->Metrics();
- if (cx == LM_TC_UP) {
- asc += (limits) ? p->Height() + 4: p->Ascent() +
- ((p->Descent()>asc) ? p->Descent() - asc + 4: 0);
- } else
- if (cx == LM_TC_DOWN) {
- des += ((limits) ? p->Height() + 4: p->Height() - p->Ascent() / 2);
- } else {
- asc = p->Ascent();
- des = p->Descent();
- }
- if (asc > ascent) ascent = asc;
- if (des > descent) descent = des;
- if (cx!= LM_TC_UP && cx!= LM_TC_DOWN)
- limits = p->GetLimits();
- data.Next();
- } else
- if (cx == LM_TC_TAB) {
- int x, y;
- data.GetIncPos(x, y);
- if (data.IsFirst() || cxp == LM_TC_TAB || cxp == LM_TC_CR) {
- if (ascent<df_asc) ascent = df_asc;
- tb = x;
- }
- data.setTab(x-tb, tab);
- tb = x;
- ++tab;
- limits = false;
- data.Next();
- } else
- if (cx == LM_TC_CR) {
- if (tb > 0) {
- int x, y;
- data.GetIncPos(x, y);
- if (data.IsFirst() || cxp == LM_TC_TAB || cxp == LM_TC_CR) {
- if (ascent<df_asc) ascent = df_asc;
- tb = x;
- }
- data.setTab(x - tb, tab);
- } else //if (GetColumns() == 1)
- {
- int x, y;
- data.GetIncPos(x, y);
- data.setTab(x, tab);
- if (ascent<df_asc) ascent = df_asc;
- }
- tb = tab = 0;
- data.subMetrics(ascent, descent);
- ascent = df_asc;
- descent = 0;
- data.Next();
- } else {
- lyxerr << "Mathed Error: Unrecognized code[" << cx
- << "]" << endl;
- break;
- }
- cxp = cx;
- }
- data.GetIncPos(width, ls);
-
- // No matter how simple is a matrix, it is NOT a subparagraph
- if (isMatrix()) {
- if (cxp == LM_TC_TAB) {
- if (ascent<df_asc) ascent = df_asc;
- data.setTab(0, tab);
- } else {
- data.setTab(width - tb, tab);
- }
- }
-
- data.subMetrics(ascent, descent);
-}
-
-
-
-void MathParInset::Write(ostream & os, bool fragile)
-{
- if (!array) return;
- int brace = 0;
- latexkeys * l;
- MathedIter data(array);
- // hack
- MathedRowSt const * crow = getRowSt();
- data.Reset();
-
- if (!Permit(LMPF_FIXED_SIZE)) {
- l = lm_get_key_by_id(size, LM_TK_STY);
- if (l) {
- os << '\\' << l->name << ' ';
- }
- }
- while (data.OK()) {
- byte cx = data.GetChar();
- if (cx >= ' ') {
- string str = data.GetString();
-
- if (data.FCode() >= LM_TC_RM && data.FCode() <= LM_TC_TEXTRM) {
- os << '\\' << math_font_name[data.FCode()-LM_TC_RM] << '{';
- }
- for (string::const_iterator s = str.begin();
- s != str.end(); ++s) {
- byte c = *s;
- if (MathIsSymbol(data.FCode())) {
- l = lm_get_key_by_id(c, (data.FCode() == LM_TC_BSYM) ?
- LM_TK_BIGSYM : LM_TK_SYM);
- if (l) {
- os << '\\' << l->name << ' ';
- } else {
-#warning this does not compile on gcc 2.97
- //lyxerr << "Illegal symbol code[" << c
- // << " " << str.end() - s << " " << data.FCode() << "]";
- }
- } else {
- // Is there a standard logical XOR?
- if ((data.FCode() == LM_TC_TEX && c != '{' && c != '}') ||
- (data.FCode() == LM_TC_SPECIAL))
- os << '\\';
- else {
- if (c == '{') ++brace;
- if (c == '}') --brace;
- }
- if (c == '}' && data.FCode() == LM_TC_TEX && brace < 0)
- lyxerr <<"Math warning: Unexpected closing brace."
- << endl;
- else
- os << char(c);
- }
- }
- if (data.FCode()>= LM_TC_RM && data.FCode()<= LM_TC_TEXTRM)
- os << '}';
- } else
- if (MathIsInset(cx)) {
- MathedInset * p = data.GetInset();
- if (cx == LM_TC_UP)
- os << "^{";
- if (cx == LM_TC_DOWN)
- os << "_{";
- p->Write(os, fragile);
- if (cx == LM_TC_UP || cx == LM_TC_DOWN)
- os << '}';
- data.Next();
- } else
- switch (cx) {
- case LM_TC_TAB:
- {
- os << " & ";
- data.Next();
- break;
- }
- case LM_TC_CR:
- {
- if (crow) {
- if (!crow->isNumbered()) {
- os << "\\nonumber ";
- }
- if (!crow->getLabel().empty()) {
- os << "\\label{"
- << crow->getLabel()
- << "} ";
- }
- crow = crow->getNext();
- }
- if (fragile)
- os << "\\protect";
- os << "\\\\\n";
- ++number_of_newlines;
- data.Next();
- break;
- }
- default:
- lyxerr << "WMath Error: unrecognized code[" << cx << "]";
- return;
- }
- }
-
- if (crow) {
- if (!crow->isNumbered()) {
- os << "\\nonumber ";
- }
- if (!crow->getLabel().empty()) {
- os << "\\label{"
- << crow->getLabel()
- << "} ";
- }
- }
-
- if (brace > 0)
- os << string(brace, '}');