5 #include "math_support.h"
7 #include "math_cursor.h"
8 #include "math_inset.h"
9 #include "math_parser.h"
10 #include "frontends/Painter.h"
11 #include "frontends/font_metrics.h"
12 #include "frontends/lyx_gui.h"
14 #include "commandtags.h"
15 #include "dimension.h"
26 Matrix(int, double, double);
28 void transform(double &, double &);
35 Matrix::Matrix(int code, double x, double y)
37 double const cs = (code & 1) ? 0 : (1 - code);
38 double const sn = (code & 1) ? (2 - code) : 0;
46 void Matrix::transform(double & x, double & y)
48 double xx = m_[0][0] * x + m_[0][1] * y;
49 double yy = m_[1][0] * x + m_[1][1] * y;
59 * Internal struct of a drawing: code n x1 y1 ... xn yn, where code is:
60 * 0 = end, 1 = line, 2 = polyline, 3 = square line, 4 = square polyline
64 double const parenthHigh[] = {
66 0.9840, 0.0014, 0.7143, 0.0323, 0.4603, 0.0772,
67 0.2540, 0.1278, 0.1746, 0.1966, 0.0952, 0.3300,
68 0.0950, 0.5000, 0.0952, 0.6700, 0.1746, 0.8034,
69 0.2540, 0.8722, 0.4603, 0.9228, 0.7143, 0.9677,
75 double const parenth[] = {
77 0.9930, 0.0071, 0.7324, 0.0578, 0.5141, 0.1126,
78 0.3380, 0.1714, 0.2183, 0.2333, 0.0634, 0.3621,
79 0.0141, 0.5000, 0.0563, 0.6369, 0.2113, 0.7647,
80 0.3310, 0.8276, 0.5070, 0.8864, 0.7254, 0.9412,
86 double const brace[] = {
88 0.9492, 0.0020, 0.9379, 0.0020, 0.7458, 0.0243,
89 0.5819, 0.0527, 0.4859, 0.0892, 0.4463, 0.1278,
90 0.4463, 0.3732, 0.4011, 0.4199, 0.2712, 0.4615,
91 0.0734, 0.4919, 0.0113, 0.5000, 0.0734, 0.5081,
92 0.2712, 0.5385, 0.4011, 0.5801, 0.4463, 0.6268,
93 0.4463, 0.8722, 0.4859, 0.9108, 0.5819, 0.9473,
94 0.7458, 0.9757, 0.9379, 0.9980, 0.9492, 0.9980,
99 double const arrow[] = {
101 0.0150, 0.7500, 0.2000, 0.6000, 0.3500, 0.3500,
102 0.5000, 0.0500, 0.6500, 0.3500, 0.8000, 0.6000,
104 3, 0.5000, 0.1500, 0.5000, 0.9500,
109 double const Arrow[] = {
111 0.0150, 0.7500, 0.2000, 0.6000, 0.3500, 0.3500,
112 0.5000, 0.0500, 0.6500, 0.3500, 0.8000, 0.6000,
114 3, 0.3500, 0.5000, 0.3500, 0.9500,
115 3, 0.6500, 0.5000, 0.6500, 0.9500,
120 double const udarrow[] = {
122 0.015, 0.25, 0.5, 0.05, 0.95, 0.25,
124 0.015, 0.75, 0.5, 0.95, 0.95, 0.75,
125 1, 0.5, 0.2, 0.5, 0.8,
130 double const Udarrow[] = {
132 0.015, 0.25, 0.5, 0.05, 0.95, 0.25,
134 0.015, 0.75, 0.5, 0.95, 0.95, 0.75,
135 1, 0.35, 0.2, 0.35, 0.8,
136 1, 0.65, 0.2, 0.65, 0.8,
141 double const brack[] = {
143 0.95, 0.05, 0.05, 0.05, 0.05, 0.95, 0.95, 0.95,
148 double const corner[] = {
150 0.95, 0.05, 0.05, 0.05, 0.05, 0.95,
155 double const angle[] = {
157 1, 0, 0.05, 0.5, 1, 1,
162 double const slash[] = {
163 1, 0.95, 0.05, 0.05, 0.95,
168 double const hline[] = {
169 1, 0.00, 0.5, 1.0, 0.5,
174 double const ddot[] = {
175 1, 0.2, 0.5, 0.3, 0.5,
176 1, 0.7, 0.5, 0.8, 0.5,
181 double const dddot[] = {
182 1, 0.1, 0.5, 0.2, 0.5,
183 1, 0.45, 0.5, 0.55, 0.5,
184 1, 0.8, 0.5, 0.9, 0.5,
189 double const hline3[] = {
191 1, 0.475, 0, 0.525, 0,
197 double const dline3[] = {
198 1, 0.1, 0.1, 0.15, 0.15,
199 1, 0.475, 0.475, 0.525, 0.525,
200 1, 0.85, 0.85, 0.9, 0.9,
205 double const hlinesmall[] = {
206 1, 0.4, 0.5, 0.6, 0.5,
211 double const ring[] = {
213 0.5, 0.8, 0.8, 0.5, 0.5, 0.2, 0.2, 0.5, 0.5, 0.8,
218 double const vert[] = {
219 1, 0.5, 0.05, 0.5, 0.95,
224 double const Vert[] = {
225 1, 0.3, 0.05, 0.3, 0.95,
226 1, 0.7, 0.05, 0.7, 0.95,
231 double const tilde[] = {
233 0.00, 0.8, 0.25, 0.2, 0.75, 0.8, 1.00, 0.2,
243 struct named_deco_struct {
249 named_deco_struct deco_table[] = {
251 {"widehat", angle, 3 },
252 {"widetilde", tilde, 0 },
253 {"underbar", hline, 0 },
254 {"underline", hline, 0 },
255 {"overline", hline, 0 },
256 {"underbrace", brace, 1 },
257 {"overbrace", brace, 3 },
258 {"overleftarrow", arrow, 1 },
259 {"overrightarrow", arrow, 3 },
260 {"overleftrightarrow", udarrow, 1 },
261 {"xleftarrow", arrow, 1 },
262 {"xrightarrow", arrow, 3 },
263 {"underleftarrow", arrow, 1 },
264 {"underrightarrow", arrow, 3 },
265 {"underleftrightarrow", udarrow, 1 },
279 {"backslash", slash, 1 },
280 {"langle", angle, 0 },
281 {"lceil", corner, 0 },
282 {"lfloor", corner, 1 },
283 {"rangle", angle, 2 },
284 {"rceil", corner, 3 },
285 {"rfloor", corner, 2 },
286 {"downarrow", arrow, 2 },
287 {"Downarrow", Arrow, 2 },
288 {"uparrow", arrow, 0 },
289 {"Uparrow", Arrow, 0 },
290 {"updownarrow", udarrow, 0 },
291 {"Updownarrow", Udarrow, 0 },
295 {"dddot", dddot, 0 },
297 {"grave", slash, 1 },
298 {"acute", slash, 0 },
299 {"tilde", tilde, 0 },
301 {"dot", hlinesmall, 0 },
302 {"check", angle, 1 },
303 {"breve", parenth, 1 },
305 {"mathring", ring, 0 },
308 {"ldots", hline3, 0 },
309 {"cdots", hline3, 0 },
310 {"vdots", hline3, 1 },
311 {"ddots", dline3, 0 },
312 {"dotsb", hline3, 0 },
313 {"dotsc", hline3, 0 },
314 {"dotsi", hline3, 0 },
315 {"dotsm", hline3, 0 },
316 {"dotso", hline3, 0 }
320 map<string, deco_struct> deco_list;
322 // sort the table on startup
323 struct init_deco_table {
325 unsigned const n = sizeof(deco_table) / sizeof(deco_table[0]);
326 for (named_deco_struct * p = deco_table; p != deco_table + n; ++p) {
330 deco_list[p->name]= d;
335 static init_deco_table dummy;
338 deco_struct const * search_deco(string const & name)
340 map<string, deco_struct>::const_iterator p = deco_list.find(name);
341 return (p == deco_list.end()) ? 0 : &(p->second);
348 void mathed_char_dim(LyXFont const & font, unsigned char c, Dimension & dim)
350 dim.d = font_metrics::descent(c, font);
351 dim.a = font_metrics::ascent(c, font);
352 dim.w = mathed_char_width(font, c);
356 int mathed_char_ascent(LyXFont const & font, unsigned char c)
358 return font_metrics::ascent(c, font);
362 int mathed_char_descent(LyXFont const & font, unsigned char c)
364 return font_metrics::descent(c, font);
368 int mathed_char_width(LyXFont const & font, unsigned char c)
370 return font_metrics::width(c, font);
374 void mathed_string_dim(LyXFont const & font, string const & s, Dimension & dim)
379 for (string::const_iterator it = s.begin(); it != s.end(); ++it) {
380 dim.a = max(dim.a, font_metrics::ascent(*it, font));
381 dim.d = max(dim.d, font_metrics::descent(*it, font));
384 dim.a = font_metrics::maxAscent(font);
385 dim.d = font_metrics::maxDescent(font);
387 dim.w = font_metrics::width(s, font);
391 int mathed_string_width(LyXFont const & font, string const & s)
393 return font_metrics::width(s, font);
397 void mathed_draw_deco(MathPainterInfo & pi, int x, int y, int w, int h,
401 pi.pain.line(x + w/2, y, x + w/2, y + h,
402 LColor::mathcursor, Painter::line_onoffdash);
406 deco_struct const * mds = search_deco(name);
408 lyxerr << "Deco was not found. Programming error?\n";
409 lyxerr << "name: '" << name << "'\n";
413 int const n = (w < h) ? w : h;
414 int const r = mds->angle;
415 double const * d = mds->data;
417 if (h > 70 && (name == "(" || name == ")"))
421 Matrix sqmt(r, n, n);
429 for (int i = 0; d[i]; ) {
430 int code = int(d[i++]);
431 if (code & 1) { // code == 1 || code == 3
437 sqmt.transform(xx, yy);
439 mt.transform(xx, yy);
440 mt.transform(x2, y2);
442 x + int(xx + 0.5), y + int(yy + 0.5),
443 x + int(x2 + 0.5), y + int(y2 + 0.5),
448 int const n = int(d[i++]);
449 for (int j = 0; j < n; ++j) {
452 // lyxerr << " " << xx << " " << yy << " ";
454 sqmt.transform(xx, yy);
456 mt.transform(xx, yy);
457 xp[j] = x + int(xx + 0.5);
458 yp[j] = y + int(yy + 0.5);
459 // lyxerr << "P[" << j " " << xx << " " << yy << " " << x << " " << y << "]";
461 pi.pain.lines(xp, yp, n, LColor::math);
467 void mathed_draw_framebox(MathPainterInfo & pi, int x, int y, MathInset const * p)
469 if (mathcursor && mathcursor->isInside(p))
470 pi.pain.rectangle(x, y - p->ascent(), p->width(), p->height(),
475 // In the future maybe we use a better fonts renderer
476 void drawStr(MathPainterInfo & pi, LyXFont const & font,
477 int x, int y, string const & str)
479 pi.pain.text(x, y, str, font);
483 void drawStrRed(MathPainterInfo & pi, int x, int y, string const & str)
485 LyXFont f = pi.base.font;
486 f.setColor(LColor::latex);
487 pi.pain.text(x, y, str, f);
491 void drawStrBlack(MathPainterInfo & pi, int x, int y, string const & str)
493 LyXFont f = pi.base.font;
494 f.setColor(LColor::black);
495 pi.pain.text(x, y, str, f);
499 void drawChar(MathPainterInfo & pi, LyXFont const & font, int x, int y, char c)
501 pi.pain.text(x, y, c, font);
505 void math_font_max_dim(LyXFont const & font, int & asc, int & des)
507 asc = font_metrics::maxAscent(font);
508 des = font_metrics::maxDescent(font);
514 LyXFont::FONT_FAMILY family_;
515 LyXFont::FONT_SERIES series_;
516 LyXFont::FONT_SHAPE shape_;
517 LColor::color color_;
521 LyXFont::FONT_FAMILY const inh_family = LyXFont::INHERIT_FAMILY;
522 LyXFont::FONT_SERIES const inh_series = LyXFont::INHERIT_SERIES;
523 LyXFont::FONT_SHAPE const inh_shape = LyXFont::INHERIT_SHAPE;
526 // mathnormal should be the first, otherwise the fallback fuerther down
528 fontinfo fontinfos[] = {
529 {"mathnormal", inh_family, LyXFont::MEDIUM_SERIES, LyXFont::UP_SHAPE, LColor::math},
530 {"mathbf", inh_family, LyXFont::BOLD_SERIES, inh_shape, LColor::math},
531 {"mathcal",LyXFont::CMSY_FAMILY, inh_series, inh_shape, LColor::math},
532 {"mathfrak", LyXFont::EUFRAK_FAMILY, inh_series, inh_shape, LColor::math},
533 {"mathrm", LyXFont::ROMAN_FAMILY, inh_series, inh_shape, LColor::math},
534 {"mathsf", LyXFont::SANS_FAMILY, inh_series, inh_shape, LColor::math},
535 {"cmex", LyXFont::CMEX_FAMILY, inh_series, inh_shape, LColor::math},
536 {"cmm", LyXFont::CMM_FAMILY, inh_series, inh_shape, LColor::math},
537 {"cmr", LyXFont::CMR_FAMILY, inh_series, inh_shape, LColor::math},
538 {"cmsy", LyXFont::CMSY_FAMILY, inh_series, inh_shape, LColor::math},
539 {"eufrak", LyXFont::EUFRAK_FAMILY, inh_series, inh_shape, LColor::math},
540 {"msa", LyXFont::MSA_FAMILY, inh_series, inh_shape, LColor::math},
541 {"msb", LyXFont::MSB_FAMILY, inh_series, inh_shape, LColor::math},
542 {"wasy", LyXFont::WASY_FAMILY, inh_series, inh_shape, LColor::math},
543 {"text", inh_family, inh_series, inh_shape, LColor::black},
544 {"textbf", inh_family, LyXFont::BOLD_SERIES, inh_shape, LColor::black},
545 {"textit", inh_family, inh_series, LyXFont::ITALIC_SHAPE, LColor::black},
546 {"textmd", inh_family, LyXFont::MEDIUM_SERIES, inh_shape, LColor::black},
547 {"textnormal", inh_family, inh_series, LyXFont::UP_SHAPE, LColor::black},
548 {"textrm", LyXFont::ROMAN_FAMILY, inh_series,LyXFont::UP_SHAPE,LColor::black},
549 {"textsc", inh_family, inh_series, LyXFont::SMALLCAPS_SHAPE, LColor::black},
550 {"textsf", LyXFont::SANS_FAMILY, inh_series, inh_shape, LColor::black},
551 {"textsl", inh_family, inh_series, LyXFont::SLANTED_SHAPE, LColor::black},
552 {"texttt", LyXFont::TYPEWRITER_FAMILY, inh_series, inh_shape, LColor::black},
553 {"textup", inh_family, inh_series, LyXFont::UP_SHAPE, LColor::black},
556 {"textipa", inh_family, inh_series, inh_shape, LColor::black},
558 {"lyxtex", inh_family, inh_series, inh_shape, LColor::latex},
559 {"lyxsymbol", LyXFont::SYMBOL_FAMILY, inh_series, inh_shape, LColor::math},
561 LyXFont::SYMBOL_FAMILY, LyXFont::BOLD_SERIES, inh_shape, LColor::math},
562 {"lyxitsymbol", LyXFont::SYMBOL_FAMILY,
563 inh_series, LyXFont::ITALIC_SHAPE, LColor::math},
564 {"lyxblacktext", LyXFont::ROMAN_FAMILY,
565 LyXFont::MEDIUM_SERIES, LyXFont::UP_SHAPE, LColor::black},
566 {"lyxnochange", inh_family, inh_series, inh_shape, LColor::black},
568 {"lyxfakebb", LyXFont::TYPEWRITER_FAMILY, LyXFont::BOLD_SERIES,
569 LyXFont::UP_SHAPE, LColor::math},
570 {"lyxfakecal", LyXFont::SANS_FAMILY, LyXFont::MEDIUM_SERIES,
571 LyXFont::ITALIC_SHAPE, LColor::math},
572 {"lyxfakefrak", LyXFont::ROMAN_FAMILY, LyXFont::BOLD_SERIES,
573 LyXFont::ITALIC_SHAPE, LColor::math}
577 fontinfo * lookupFont(string const & name)
579 //lyxerr << "searching font '" << name << "'\n";
580 int const n = sizeof(fontinfos) / sizeof(fontinfo);
581 for (int i = 0; i < n; ++i)
582 if (fontinfos[i].cmd_ == name) {
583 //lyxerr << "found '" << i << "'\n";
584 return fontinfos + i;
590 fontinfo * searchFont(string const & name)
592 fontinfo * f = lookupFont(name);
593 return f ? f : fontinfos;
594 // this should be mathnormal
595 //return searchFont("mathnormal");
599 bool isFontName(string const & name)
601 return lookupFont(name);
605 LyXFont getFont(string const & name)
608 augmentFont(font, name);
613 void fakeFont(string const & orig, string const & fake)
615 fontinfo * forig = searchFont(orig);
616 fontinfo * ffake = searchFont(fake);
617 if (forig && ffake) {
618 forig->family_ = ffake->family_;
619 forig->series_ = ffake->series_;
620 forig->shape_ = ffake->shape_;
621 forig->color_ = ffake->color_;
623 lyxerr << "Can't fake font '" << orig << "' with '" << fake << "'\n";
628 void augmentFont(LyXFont & font, string const & name)
630 static bool initialized = false;
634 // fake fonts if necessary
635 if (!lyx_gui::font_available(getFont("mathfrak")))
636 fakeFont("mathfrak", "lyxfakefrak");
637 if (!lyx_gui::font_available(getFont("mathcal")))
638 fakeFont("mathcal", "lyxfakecal");
640 fontinfo * info = searchFont(name);
641 if (info->family_ != inh_family)
642 font.setFamily(info->family_);
643 if (info->series_ != inh_series)
644 font.setSeries(info->series_);
645 if (info->shape_ != inh_shape)
646 font.setShape(info->shape_);
647 if (info->color_ != LColor::none)
648 font.setColor(info->color_);