3 * Purpose: Implementation of insets for mathed
4 * Author: Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
5 * Created: January 1996
8 * Dependencies: Xlib, XForms
10 * Copyright: 1996, 1997 Alejandro Aguilar Sierra
14 * You are free to use and modify this code under the terms of
15 * the GNU General Public Licence version 2 or later.
21 #pragma implementation "math_inset.h"
24 #include "math_iter.h"
25 #include "math_inset.h"
26 #include "symbol_def.h"
29 MathedInset::MathedInset(MathedInset * inset)
32 name = inset->GetName();
33 objtype = inset->GetType();
34 size = inset->GetStyle();
35 width = inset->Width();
36 ascent = inset->Ascent();
37 descent = inset->Descent();
39 objtype = LM_OT_UNDEF;
41 width = ascent = descent = 0;
47 MathFuncInset::MathFuncInset(string const & nm, short ot, short st)
48 : MathedInset("", ot, st)
51 lims = (GetType() == LM_OT_FUNCLIM);
52 if (GetType() == LM_OT_UNDEF) {
62 MathedInset * MathFuncInset::Clone()
64 return new MathFuncInset(name, GetType(), GetStyle());
68 MathSpaceInset::MathSpaceInset(int sp, short ot, short st)
69 : MathedInset("", ot, st), space(sp)
73 MathedInset * MathSpaceInset::Clone()
75 return new MathSpaceInset(space, GetType(), GetStyle());
79 MathParInset::MathParInset(short st, string const & nm, short ot)
80 : MathedInset(nm, ot, st)
87 if (objtype == LM_OT_SCRIPT)
92 MathParInset::MathParInset(MathParInset * p)
97 MathedIter it(p->GetData());
102 MathParInset::~MathParInset()
105 MathedIter it(array);
112 MathedInset * MathParInset::Clone()
114 return new MathParInset(this);
118 void MathParInset::SetData(LyxArrayBase * a)
122 // A standard paragraph shouldn't have any tabs nor CRs.
124 MathedIter it(array);
126 char c = it.GetChar();
127 if (c == LM_TC_TAB || c == LM_TC_CR)
136 MathSqrtInset::MathSqrtInset(short st)
137 : MathParInset(st, "sqrt", LM_OT_SQRT) {}
140 MathedInset * MathSqrtInset::Clone()
142 MathSqrtInset * p = new MathSqrtInset(GetStyle());
143 MathedIter it(array);
144 p->SetData(it.Copy());
149 bool MathSqrtInset::Inside(int x, int y)
151 return x >= xo - hmax
152 && x <= xo + width - hmax
158 MathDelimInset::MathDelimInset(int l, int r, short st)
159 : MathParInset(st, "", LM_OT_DELIM), left(l), right(r) {}
162 MathedInset * MathDelimInset::Clone()
164 MathDelimInset * p = new MathDelimInset(left, right, GetStyle());
165 MathedIter it(array);
166 p->SetData(it.Copy());
171 MathDecorationInset::MathDecorationInset(int d, short st)
172 : MathParInset(st, "", LM_OT_DECO), deco(d)
174 upper = (deco!= LM_underline && deco!= LM_underbrace);
178 MathedInset * MathDecorationInset::Clone()
180 MathDecorationInset * p = new MathDecorationInset(deco, GetStyle());
181 MathedIter it(array);
182 p->SetData(it.Copy());
187 MathFracInset::MathFracInset(short ot)
188 : MathParInset(LM_ST_TEXT, "frac", ot)
191 den = new MathParInset(LM_ST_TEXT); // this leaks
194 if (objtype == LM_OT_STACKREL) {
201 MathFracInset::~MathFracInset()
207 MathedInset * MathFracInset::Clone()
209 MathFracInset * p = new MathFracInset(GetType());
210 MathedIter itn(array);
211 MathedIter itd(den->GetData());
212 p->SetData(itn.Copy(), itd.Copy());
219 bool MathFracInset::setArgumentIdx(int i)
221 if (i == 0 || i == 1) {
229 void MathFracInset::SetStyle(short st)
231 MathParInset::SetStyle(st);
233 den->SetStyle((size == LM_ST_DISPLAY) ?
234 static_cast<short>(LM_ST_TEXT)
239 void MathFracInset::SetData(LyxArrayBase * n, LyxArrayBase * d)
242 MathParInset::SetData(n);
246 void MathFracInset::SetData(LyxArrayBase * d)
249 MathParInset::SetData(d);
256 void MathFracInset::GetXY(int & x, int & y) const
259 MathParInset::GetXY(x, y);
265 LyxArrayBase * MathFracInset::GetData()
270 return den->GetData();
274 bool MathFracInset::Inside(int x, int y)
276 int xx = xo - (width - w0) / 2;
278 return x >= xx && x <= xx + width && y <= yo + descent && y >= yo - ascent;
282 void MathFracInset::SetFocus(int /*x*/, int y)
284 // lyxerr << "y " << y << " " << yo << " " << den->yo << " ";
285 idx = (y > yo) ? 1: 0;
289 MathMatrixInset::MathMatrixInset(int m, int n, short st)
290 : MathParInset(st, "array", LM_OT_MATRIX), nc(m),
291 v_align(0), h_align(nc, 'c')
298 row = new MathedRowSt(nc+1);
299 MathedXIter it(this);
300 for (int j = 1; j < n; ++j) it.addRow();
302 if (nr == 1 && nc > 1) {
303 for (int j = 0; j < nc - 1; ++j)
304 it.Insert('T', LM_TC_TAB);
307 row = new MathedRowSt(nc + 1);
313 MathMatrixInset::MathMatrixInset(MathMatrixInset * mt)
314 : MathParInset(mt->GetStyle(), mt->GetName(), mt->GetType()),
315 nc(mt->nc), v_align(mt->v_align), h_align(mt->h_align)
320 it.SetData(mt->GetData());
323 MathedRowSt * r, * ro= 0, * mrow = mt->row;
324 //mrow = mt->row; // This must be redundant...
326 r = new MathedRowSt(nc + 1);
327 r->setNumbered(mrow->isNumbered());
329 r->setLabel(mrow->getLabel());
334 mrow = mrow->getNext();
344 MathMatrixInset::~MathMatrixInset()
348 MathedRowSt * r = row;
350 MathedRowSt * q = r->getNext();
357 MathedInset * MathMatrixInset::Clone()
359 return new MathMatrixInset(this);
363 void MathMatrixInset::SetAlign(char vv, string const & hh)
366 h_align = hh.substr(0, nc); // usr just h_align = hh; perhaps
370 // Check the number of tabs and crs
371 void MathMatrixInset::SetData(LyxArrayBase * a)
377 // count tabs per row
390 it.Insert(' ', LM_TC_TAB);
400 // Automatically inserts tabs around bops
401 // DISABLED because it's very easy to insert tabs
406 void MathMatrixInset::draw(Painter & pain, int x, int baseline)
408 MathParInset::draw(pain, x, baseline);
412 void MathMatrixInset::Metrics()
415 MathedRowSt * cprow= 0;
418 // lyxerr << " MIDA ";
419 MathedXIter it(this);
420 row = it.adjustVerticalSt();
424 MathedRowSt * cxrow = row;
426 for (i = 0; i <= nc; ++i) cxrow->setTab(i, 0);
427 cxrow = cxrow->getNext();
431 MathParInset::Metrics();
433 if (nc <= 1 && !row->getNext()) {
435 row->descent(descent);
438 // Vertical positions of each row
441 for (i = 0; i < nc; ++i) {
442 if (cxrow == row || ws[i] < cxrow->getTab(i))
443 ws[i] = cxrow->getTab(i);
444 if (cxrow->getNext() == 0 && ws[i] == 0) ws[i] = df_width;
447 cxrow->setBaseline((cxrow == row) ?
449 cxrow->ascent() + cprow->descent()
450 + MATH_ROWSEP + cprow->getBaseline());
451 h += cxrow->ascent() + cxrow->descent() + MATH_ROWSEP;
453 cxrow = cxrow->getNext();
459 // Compute vertical align
461 case 't': ascent = row->getBaseline(); break;
462 case 'b': ascent = h - hl; break;
463 default: ascent = (row->getNext()) ? h / 2: h - hl; break;
465 descent = h - ascent + 2;
472 int rg = MATH_COLSEP, ww, lf = 0; //, * w = cxrow->w;
473 for (i = 0; i < nc; ++i) {
475 if (cxrow->getTab(i) <= 0) {
476 cxrow->setTab(i, df_width);
479 switch (h_align[i]) {
480 case 'l': lf = 0; break;
481 case 'c': lf = (ws[i] - cxrow->getTab(i))/2;
483 case 'r': lf = ws[i] - cxrow->getTab(i); break;
485 ww = (isvoid) ? lf: lf + cxrow->getTab(i);
486 cxrow->setTab(i, lf + rg);
487 rg = ws[i] - ww + MATH_COLSEP;
488 if (cxrow == row) width += ws[i] + MATH_COLSEP;
490 cxrow->setBaseline(cxrow->getBaseline() - ascent);
491 cxrow = cxrow->getNext();
496 MathAccentInset::MathAccentInset(byte cx, MathedTextCodes f, int cd, short st)
497 : MathedInset("", LM_OT_ACCENT, st), c(cx), fn(f), code(cd)
503 MathAccentInset::MathAccentInset(MathedInset *ins, int cd, short st)
504 : MathedInset("", LM_OT_ACCENT, st),
505 c(0), fn(LM_TC_MIN), code(cd), inset(ins) {}
508 MathAccentInset::~MathAccentInset()
514 MathedInset * MathAccentInset::Clone()
519 p = new MathAccentInset(inset->Clone(), code, GetStyle());
521 p = new MathAccentInset(c, fn, code, GetStyle());
527 MathBigopInset::MathBigopInset(string const & nam, int id, short st)
528 : MathedInset(nam, LM_OT_BIGOP, st), sym(id)
534 MathedInset * MathBigopInset::Clone()
536 return new MathBigopInset(name, sym, GetStyle());
540 MathDotsInset::MathDotsInset(string const & nam, int id, short st)
541 : MathedInset(nam, LM_OT_DOTS, st), code(id) {}
544 MathedInset * MathDotsInset::Clone()
546 return new MathDotsInset(name, code, GetStyle());