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)
294 h_align = new char[nc + 1];
295 for (int i = 0; i < nc; ++i) h_align[i] = 'c';
301 row = new MathedRowSt(nc+1);
302 MathedXIter it(this);
303 for (int j = 1; j < n; ++j) it.addRow();
305 if (nr == 1 && nc > 1) {
306 for (int j = 0; j < nc - 1; ++j)
307 it.Insert('T', LM_TC_TAB);
310 row = new MathedRowSt(nc + 1);
316 MathMatrixInset::MathMatrixInset(MathMatrixInset * mt)
317 : MathParInset(mt->GetStyle(), mt->GetName(), mt->GetType())
322 h_align = new char[nc + 1];
323 strcpy(h_align, mt->GetAlign(&v_align));
325 it.SetData(mt->GetData());
328 MathedRowSt * r, * ro= 0, * mrow = mt->row;
329 //mrow = mt->row; // This must be redundant...
331 r = new MathedRowSt(nc + 1);
332 r->numbered = mrow->numbered;
334 r->label = mrow->label;
349 MathMatrixInset::~MathMatrixInset()
353 MathedRowSt * r = row;
355 MathedRowSt * q = r->next;
362 MathedInset * MathMatrixInset::Clone()
364 return new MathMatrixInset(this);
368 void MathMatrixInset::SetAlign(char vv, string const & hh)
371 ::strncpy(h_align, hh.c_str(), nc);
375 // Check the number of tabs and crs
376 void MathMatrixInset::SetData(LyxArrayBase * a)
382 // count tabs per row
395 it.Insert(' ', LM_TC_TAB);
405 // Automatically inserts tabs around bops
406 // DISABLED because it's very easy to insert tabs
411 void MathMatrixInset::draw(Painter & pain, int x, int baseline)
413 MathParInset::draw(pain, x, baseline);
417 void MathMatrixInset::Metrics()
420 MathedRowSt * cprow= 0;
423 // lyxerr << " MIDA ";
424 MathedXIter it(this);
425 row = it.adjustVerticalSt();
429 MathedRowSt * cxrow = row;
431 for (i = 0; i <= nc; ++i) cxrow->w[i] = 0;
436 MathParInset::Metrics();
438 if (nc <= 1 && !row->next) {
443 // Vertical positions of each row
446 for (i = 0; i < nc; ++i) {
447 if (cxrow == row || ws[i]<cxrow->w[i]) ws[i]= cxrow->w[i];
448 if (cxrow->next == 0 && ws[i] == 0) ws[i] = df_width;
451 cxrow->y = (cxrow == row) ? cxrow->asc:
452 cxrow->asc + cprow->desc + MATH_ROWSEP + cprow->y;
453 h += cxrow->asc + cxrow->desc + MATH_ROWSEP;
461 // Compute vertical align
463 case 't': ascent = row->y; break;
464 case 'b': ascent = h - hl; break;
465 default: ascent = (row->next) ? h / 2: h - hl; break;
467 descent = h - ascent + 2;
474 int rg = MATH_COLSEP, ww, lf = 0, * w = cxrow->w;
475 for (i = 0; i < nc; ++i) {
481 switch (h_align[i]) {
482 case 'l': lf = 0; break;
483 case 'c': lf = (ws[i] - w[i])/2;
485 case 'r': lf = ws[i] - w[i]; break;
487 ww = (isvoid) ? lf: lf + w[i];
489 rg = ws[i] - ww + MATH_COLSEP;
490 if (cxrow == row) width += ws[i] + MATH_COLSEP;
498 MathAccentInset::MathAccentInset(byte cx, MathedTextCodes f, int cd, short st)
499 : MathedInset("", LM_OT_ACCENT, st), c(cx), fn(f), code(cd)
505 MathAccentInset::MathAccentInset(MathedInset *ins, int cd, short st)
506 : MathedInset("", LM_OT_ACCENT, st),
507 c(0), fn(LM_TC_MIN), code(cd), inset(ins) {}
510 MathAccentInset::~MathAccentInset()
516 MathedInset * MathAccentInset::Clone()
521 p = new MathAccentInset(inset->Clone(), code, GetStyle());
523 p = new MathAccentInset(c, fn, code, GetStyle());
529 MathBigopInset::MathBigopInset(string const & nam, int id, short st)
530 : MathedInset(nam, LM_OT_BIGOP, st), sym(id)
536 MathedInset * MathBigopInset::Clone()
538 return new MathBigopInset(name, sym, GetStyle());
542 MathDotsInset::MathDotsInset(string const & nam, int id, short st)
543 : MathedInset(nam, LM_OT_DOTS, st), code(id) {}
546 MathedInset * MathDotsInset::Clone()
548 return new MathDotsInset(name, code, GetStyle());