lyx_mirror/src/frontends/xforms/MathsSymbols.C

/**
 * \file MathsSymbols.C
 * Copyright 2001 the LyX Team
 * Read the file COPYING
 *
 * \author Alejandro Aguilar Sierra
 * \author John Levon, moz@compsoc.man.ac.uk
 */

#include <config.h>
#include <algorithm>

#include XPM_H_LOCATION

#ifdef __GNUG__
#pragma implementation
#endif

#include "support/LAssert.h"
#include "support/lstrings.h"
#include "debug.h"
#include "MathsSymbols.h"
#include "FormMathsPanel.h"

using std::max;
using std::endl;
using std::ostream;

#ifndef CXX_GLOBAL_CSTD
using std::strstr;
#endif


/* Latex code for those bitmaps */

#include "greek.xbm"
#include "arrows.xbm"
#include "brel.xbm"
#include "bop.xbm"
#include "misc.xbm"
#include "varsz.xbm"
#include "dots.xbm"

#include "ams_misc.xbm"
#include "ams_arrows.xbm"
#include "ams_rel.xbm"
#include "ams_nrel.xbm"
#include "ams_ops.xbm"

#include "mathed/math_parser.h"
#include "frac.xpm"
#include "sub.xpm"
#include "super.xpm"
#include "style.xpm"
#include "sqrt.xpm"
#include "delim.xbm"
#include "delim.xpm"
#include "deco.xbm"
#include "deco.xpm"
#include "space.xpm"
#include "matrix.xpm"
#include "equation.xpm"

char const * function_names[] = {
	"arccos", "arcsin", "arctan", "arg", "bmod",
	"cos", "cosh", "cot", "coth", "csc", "deg",
	"det", "dim", "exp", "gcd", "hom", "inf", "ker",
	"lg", "lim", "liminf", "limsup", "ln", "log",
	"max", "min", "sec", "sin", "sinh", "sup",
	"tan", "tanh"
};

int const nr_function_names = sizeof(function_names) / sizeof(char const *);

char const * latex_arrow[] = {
	"downarrow", "leftarrow", "Downarrow", "Leftarrow",
	"hookleftarrow", "rightarrow", "uparrow", "Rightarrow", "Uparrow",
	"hookrightarrow", "updownarrow", "Leftrightarrow", "leftharpoonup",
	"rightharpoonup", "rightleftharpoons", "leftrightarrow", "Updownarrow",
	"leftharpoondown", "rightharpoondown", "mapsto",
	"Longleftarrow", "Longrightarrow", "Longleftrightarrow",
	"longleftrightarrow", "longleftarrow", "longrightarrow", "longmapsto",
	"nwarrow", "nearrow", "swarrow", "searrow",  "",
};

int const nr_latex_arrow = sizeof(latex_arrow) / sizeof(char const *);

char const * latex_bop[] = {
	"pm", "cap", "diamond", "oplus",
	"mp", "cup", "bigtriangleup", "ominus",
	"times", "uplus", "bigtriangledown", "otimes",
	"div", "sqcap", "triangleright", "oslash",
	"cdot", "sqcup", "triangleleft", "odot",
	"star", "vee", "amalg", "bigcirc",
	"setminus", "wedge", "dagger", "circ",
	"bullet", "wr", "ddagger", ""
};

int const nr_latex_bop = sizeof(latex_bop) / sizeof(char const *);

char const * latex_brel[] = {
	"leq", "geq", "equiv", "models",
	"prec", "succ", "sim", "perp",
	"preceq", "succeq", "simeq", "mid",
	"ll", "gg", "asymp", "parallel",
	"subset", "supset", "approx", "smile",
	"subseteq", "supseteq", "cong", "frown",
	"sqsubseteq", "sqsupseteq", "doteq", "neq",
	"in", "ni", "propto", "notin",
	"vdash", "dashv", "bowtie", ""
};

int const nr_latex_brel = sizeof(latex_brel) / sizeof(char const *);

char const * latex_dots[] = {
	"ldots", "cdots", "vdots", "ddots"
};

int const nr_latex_dots = sizeof(latex_dots) / sizeof(char const *);

char const * latex_greek[] = {
	"Gamma", "Delta", "Theta", "Lambda", "Xi", "Pi",
	"Sigma", "Upsilon", "Phi", "Psi", "Omega",
	"alpha", "beta", "gamma", "delta", "epsilon", "varepsilon", "zeta",
	"eta", "theta", "vartheta", "iota", "kappa", "lambda", "mu",
	"nu", "xi", "pi", "varpi", "rho", "sigma", "varsigma",
	"tau", "upsilon", "phi", "varphi", "chi", "psi", "omega", ""
};

int const nr_latex_greek = sizeof(latex_greek) / sizeof(char const *);

char const * latex_misc[] = {
	"nabla", "partial", "infty", "prime", "ell",
	"emptyset", "exists", "forall", "imath",  "jmath",
	"Re", "Im", "aleph", "wp", "hbar",
	"angle", "top", "bot", "Vert", "neg",
	"flat", "natural", "sharp", "surd", "triangle",
	"diamondsuit", "heartsuit", "clubsuit", "spadesuit",
	"textrm <20>", "textrm <20>", "mathcircumflex", "_",
	"mathrm T",
	"mathbb N", "mathbb Z", "mathbb Q",
	"mathbb R", "mathbb C", "mathbb H",
	"mathcal F", "mathcal L",
	"mathcal H", "mathcal O", ""
};

int const nr_latex_misc = sizeof(latex_misc) / sizeof(char const *);

char const * latex_varsz[] = {
	"sum", "int", "oint",
	"prod", "coprod", "bigsqcup",
	"bigotimes", "bigodot", "bigoplus",
	"bigcap", "bigcup", "biguplus",
	"bigvee", "bigwedge", ""
};

int const nr_latex_varsz = sizeof(latex_varsz) / sizeof(char const *);

char const * latex_ams_misc[] = {
	"digamma", "varkappa", "beth", "daleth", "gimel",
	"ulcorner", "urcorner", "llcorner", "lrcorner",
	"hbar", "hslash", "vartriangle",
	"triangledown", "square", "lozenge",
	"circledS", "angle", "measuredangle",
	"nexists", "mho", "Finv",
	"Game", "Bbbk", "backprime",
	"varnothing", "blacktriangle", "blacktriangledown",
	"blacksquare", "blacklozenge", "bigstar",
	"sphericalangle", "complement", "eth",
	"diagup", "diagdown", ""
};

int const nr_latex_ams_misc = sizeof(latex_ams_misc) / sizeof(char const *);

char const * latex_ams_arrows[] = {
	"dashrightarrow", "dashleftarrow", "leftleftarrows",
	"leftrightarrows", "Lleftarrow", "twoheadleftarrow",
	"leftarrowtail", "looparrowleft", "leftrightharpoons",
	"curvearrowleft", "circlearrowleft", "Lsh",
	"upuparrows", "upharpoonleft", "downharpoonleft",
	"multimap", "leftrightsquigarrow", "rightrightarrows",
	"rightleftarrows", "rightrightarrows", "rightleftarrows",
	"twoheadrightarrow", "rightarrowtail", "looparrowright",
	"rightleftharpoons", "curvearrowright", "circlearrowright",
	"Rsh", "downdownarrows", "upharpoonright",
	"downharpoonright", "rightsquigarrow",
	"nleftarrow", "nrightarrow", "nLeftarrow",
	"nRightarrow", "nleftrightarrow", "nLeftrightarrow"
};

int const nr_latex_ams_arrows = sizeof(latex_ams_arrows) / sizeof(char const *);

char const * latex_ams_rel[] = {
	"leqq", "leqslant", "eqslantless", "eqslantgtr", "gtrsim", "gtrapprox",
	"lesssim", "lessapprox", "approxeq", "gtrdot", "ggg", "gtrless",
	"lessdot", "lll", "lessgtr", "gtreqless", "gtreqqless", "eqcirc",
	"lesseqgtr", "lesseqqgtr", "doteqdot", "circeq", "triangleq", "thicksim",
	"risingdotseq", "fallingdotseq", "backsim", "thickapprox", "supseteqq", "Supset",
	"backsimeq", "subseteqq", "Subset","sqsupset", "succcurlyeq", "curlyeqsucc",
	"sqsubset", "preccurlyeq", "curlyeqprec", "succsim", "succapprox", "vartriangleright",
	"precsim", "precapprox", "vartriangleleft", "trianglerighteq", "Vdash", "shortmid",
	"trianglelefteq", "vDash", "Vvdash", "shortparallel", "between", "pitchfork",
	"smallsmile", "smallfrown", "bumpeq", "varpropto", "blacktriangleleft", "therefore",
	"Bumpeq", "geqq", "geqslant", "backepsilon", "blacktriangleright", "because"
};

int const nr_latex_ams_rel = sizeof(latex_ams_rel) / sizeof(char const *);

char const * latex_ams_nrel[] = {
	"nless", "nleq", "nleqslant", "ngeqslant", "ngeqq", "gneq",
	"nleqq", "lneq", "lneqq","gneqq", "gverteqq", "gnsim",
	"lvertneqq", "lnsim", "lnapprox", "gnapprox", "nsucc", "nsucceq",
	"nprec", "npreceq", "precnsim","succnsim", "succnapprox", "ncong",
	"precnapprox", "nsim", "nshortmid", "nshortparallel", "nparallel", "nvDash",

	"nmid", "nvdash", "nvDash","nVDash", "ntriangleright", "ntrianglerighteq",
	"ntriangleleft", "ntrianglelefteq", "nsubseteq", "nsupseteq", "nsupseteqq", "supsetneq",
	"subsetneq", "varsubsetneq", "subsetneqq", "varsupsetneq", "supsetneqq", "varsupsetneqq",
	"varsubsetneqq", "ngtr", "ngeq","", "", ""
};

int const nr_latex_ams_nrel = sizeof(latex_ams_nrel) / sizeof(char const *);


char const * latex_ams_ops[] = {
	"dotplus", "smallsetminus", "Cap",
	"Cup", "barwedge", "veebar",
	"doublebarwedge", "boxminus", "boxtimes",
	"boxdot", "boxplus", "divideontimes",
	"ltimes", "rtimes", "leftthreetimes",
	"rightthreetimes", "curlywedge", "curlyvee",
	"circleddash", "circledast", "circledcirc",
	"centerdot", "intercal", ""
};

int const nr_latex_ams_ops = sizeof(latex_ams_ops) / sizeof(char const *);

static char const ** mathed_get_pixmap_from_icon(int d)
{
	switch (d) {
	case MM_FRAC: return frac;
	case MM_SQRT: return sqrt_xpm;
	case MM_SUPER: return super_xpm;
	case MM_SUB: return sub_xpm;
	case MM_STYLE: return style_xpm;
	case MM_DELIM: return delim;
	case MM_MATRIX: return matrix;
	case MM_EQU: return equation;
	case MM_DECO: return deco;
	case MM_SPACE: return space_xpm;
	default: return 0;
	}
}

static char const ** pixmapFromBitmapData(char const * s, int wx, int hx)
{
	char const ** data = 0;

	int id = -1;

	int i = 0;
	for (; i < 11; ++i) {
		char const ** latex_str = 0;
		switch (i) {
		case 0: latex_str = latex_greek; break;
		case 1: latex_str = latex_bop; break;
		case 2: latex_str = latex_brel; break;
		case 3: latex_str = latex_arrow; break;
		case 4: latex_str = latex_varsz; break;
		case 5: latex_str = latex_misc; break;
		case 6: latex_str = latex_ams_misc; break;
		case 7: latex_str = latex_ams_arrows; break;
		case 8: latex_str = latex_ams_rel; break;
		case 9: latex_str = latex_ams_nrel; break;
		case 10: latex_str = latex_ams_ops; break;
			// Add AMS stuff here -- MV
		}

		for (int k = 0; latex_str[k][0] > ' '; ++k) {
			if (compare(latex_str[k], s) == 0) {
				id = k;
				break;
			}
		}
		if (id >= 0) break;
	}
	if (i < 11 && id >= 0) {
		unsigned char const * bdata = 0;
		int w = 0;
		int h = 0;
		int dw = 0;
		int dh = 0;

		lyxerr [Debug::MATHED] << "Imando " << i << ", " << id << endl;
		switch (i) {
		case 0:
			if (id <= 10) {
				w = Greek_width;
				h = Greek_height;
				bdata = Greek_bits;
				dw = 6;
				dh = 2;
			} else {
				w = greek_width;
				h = greek_height;
				bdata = greek_bits;
				dw = 7;
				dh = 4;
				id -= 11;
			}
			break;
		case 1:
			w = bop_width;
			h = bop_height;
			bdata = bop_bits;
			dw = 4;
			dh = 8;
			break;
		case 2:
			w = brel_width;
			h = brel_height;
			bdata = brel_bits;
			dw = 4;
			dh = 9;
			break;
		case 3:
			if (id < 20) {
				w = arrow_width;
				h = arrow_height;
				bdata = arrow_bits;
				dw = 5;
				dh = 4;
			} else if (id > 28) {
				w = darrow_width;
				h = darrow_height;
				bdata = darrow_bits;
				dw = 2;
				dh = 2;
				id -= 29;
			} else {
				w = larrow_width;
				h = larrow_height;
				bdata = larrow_bits;
				dw = 2;
				dh = 4;
				id -= 20;
			}
			break;
		case 4:
			w = varsz_width;
			h = varsz_height;
			bdata = varsz_bits;
			dw = 3;
			dh = 5;
			break;
		case 5:
			if (id < 29) {
				w = misc_width;
				h = misc_height;
				bdata = misc_bits;
				dw = 5;
				dh = 6;
			} else if (id > 36) {
				w = misc3_width;
				h = misc3_height;
				bdata = misc3_bits;
				dw = 3;
				dh = 2;
				id -= 37;
			} else {
				w = misc2_width;
				h = misc2_height;
				bdata = misc2_bits;
				dw = 2;
				dh = 2;
				id -= 29;
			}
			break;
		case 7:
		case 8:
		case 9:
		case 10:
			// to be added -- MV
			break;
		}
		int ww = w / dw;
		int hh = h / dh;
		XImage * xima = XCreateImage(fl_get_display(), 0, 1, XYBitmap, 0,
					     const_cast<char*>(reinterpret_cast<char const *>(bdata)), w, h, 8, 0);
		xima->byte_order = LSBFirst;
		xima->bitmap_bit_order = LSBFirst;
		int x = (id % dw) * ww;
		int y = (id/dw) * hh;
		if (ww > wx) ww = wx;
		if (hh > hx) hh = hx;
		XImage * sbima = XSubImage(xima, x, y, ww, hh);
		XpmCreateDataFromImage(fl_get_display(), const_cast<char***>(&data), sbima, sbima, 0);

		// Dirty hack to get blue symbols quickly
		char * sx = const_cast<char*>(strstr(data[2], "FFFFFFFF"));
		if (sx) {
			for (int k = 0; k < 8; ++k) sx[k] = '0';
		}

//	XDestroyImage(xima);
	}

	return data;
}


char const ** get_pixmap_from_symbol(char const * arg, int wx, int hx)
{
	lyx::Assert(arg);

	char const ** data = 0;
	latexkeys const * l = in_word_set(arg);
	if (!l)
		return 0;

	switch (l->token) {
	case LM_TK_FRAC:
		data = mathed_get_pixmap_from_icon(MM_FRAC);
		break;
	case LM_TK_SQRT:
		data = mathed_get_pixmap_from_icon(MM_SQRT);
		break;
	case LM_TK_SYM:
	case LM_TK_CMR:
	case LM_TK_CMSY:
	case LM_TK_CMEX:
	case LM_TK_CMM:
	case LM_TK_MSA:
	case LM_TK_MSB:
		// I have to use directly the bitmap data since the
		// bitmap tables are not yet created when this
		// function is called.
		data = pixmapFromBitmapData(arg, wx, hx);
		break;
	default:
		break;
	}

	return data;
}