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/*
 *  R : A Computer Language for Statistical Data Analysis
 *  Copyright (C) 1995, 1996    Robert Gentleman and Ross Ihaka
 *  Copyright (C) 2000, 2001    The R Development Core Team.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *
 *  EXPORTS printMatrix()
 *      printArray()
 *
 *  See ./printutils.c   for general remarks on Printing
 *           and the Encode.. utils.
 *
 *  See ./format.c   for the  format_FOO_  functions used below.
 */


/*
 *  FIXME: named-dimname printing implemented for integer arrays only
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "Defn.h"
#include "Print.h"

static void printLogicalMatrix(SEXP sx, int offset, int r, int c,
                   SEXP rl, SEXP cl, char *rn, char *cn)
{
    SEXP sw;
    int *x, *w;
    int width, rlabw, clabw, rnw;
    int i, j, jmin, jmax, lbloff = 0;

    if (!isNull(rl))
    formatString(STRING_PTR(rl), r, &rlabw, 0);
    else
    rlabw = IndexWidth(r + 1) + 3;

    if (rn) {
    rnw = strlen(rn);
    if ( rnw < rlabw + R_MIN_LBLOFF )
        lbloff = R_MIN_LBLOFF;
    else
        lbloff = rnw - rlabw;

    rlabw += lbloff;
    }

    sw = allocVector(INTSXP, c);
    x = INTEGER(sx) + offset;
    w = INTEGER(sw);

    for (j = 0; j < c; j++) {
    formatLogical(&x[j * r], r, &w[j]);
    if (!isNull(cl))
        clabw = strlen(CHAR(STRING_ELT(cl, j)));
    else
        clabw = IndexWidth(j + 1) + 3;
    if (w[j] < clabw)
        w[j] = clabw;
    w[j] += R_print.gap;
    }
    jmin = 0;
    jmax = 0;
    while (jmin < c) {
    width = rlabw;
    do {
        width += w[jmax];
        jmax++;
    }
    while (jmax < c && width + w[jmax] < R_print.width);

    if (cn != NULL)
        Rprintf("%*s%s\n", rlabw, "", cn);

    if (rn != NULL)
        Rprintf("%*s", -rlabw, rn);
    else
        Rprintf("%*s", rlabw, "");

    for (j = jmin; j < jmax ; j++)
        MatrixColumnLabel(cl, j, w[j]);
    for (i = 0; i < r; i++) {
        MatrixRowLabel(rl, i, rlabw, lbloff);
        for (j = jmin; j < jmax; j++) {
        Rprintf("%s", EncodeLogical(x[i + j * r], w[j]));
        }
    }
    Rprintf("\n");
    jmin = jmax;
    }
}

static void printIntegerMatrix(SEXP sx, int offset, int r, int c,
                   SEXP rl, SEXP cl, char *rn, char *cn)
{
    SEXP sw;
    int *x, *w;
    int width, rlabw, clabw, rnw;
    int i, j, jmin, jmax, lbloff = 0;

    if (!isNull(rl))
    formatString(STRING_PTR(rl), r, &rlabw, 0);
    else
    rlabw = IndexWidth(r + 1) + 3;

    if (rn) {
    rnw = strlen(rn);
    if ( rnw < rlabw + R_MIN_LBLOFF )
        lbloff = R_MIN_LBLOFF;
    else
        lbloff = rnw - rlabw;

    rlabw += lbloff;
    }

    sw = allocVector(INTSXP, c);
    x = INTEGER(sx) + offset;
    w = INTEGER(sw);
    for (j = 0; j < c; j++) {
    formatInteger(&x[j * r], r, &w[j]);
    if (!isNull(cl))
        clabw = strlen(CHAR(STRING_ELT(cl, j)));
    else
        clabw = IndexWidth(j + 1) + 3;
    if (w[j] < clabw)
        w[j] = clabw;
    w[j] += R_print.gap;
    }
    jmin = 0;
    jmax = 0;
    while (jmin < c) {
    width = rlabw;
    do {
        width += w[jmax];
        jmax++;
    }
    while (jmax < c && width + w[jmax] < R_print.width);

    if (cn != NULL)
        Rprintf("%*s%s\n", rlabw, "", cn);

    if (rn != NULL)
        Rprintf("%*s", -rlabw, rn);
    else
        Rprintf("%*s", rlabw, "");

    for (j = jmin; j < jmax ; j++)
        MatrixColumnLabel(cl, j, w[j]);
    for (i = 0; i < r; i++) {
        MatrixRowLabel(rl, i, rlabw, lbloff);
        for (j = jmin; j < jmax; j++) {
        Rprintf("%s", EncodeInteger(x[i + j * r], w[j]));
        }
    }
    Rprintf("\n");
    jmin = jmax;
    }
}

static void printRealMatrix(SEXP sx, int offset, int r, int c,
                SEXP rl, SEXP cl, char *rn, char *cn)
{
    SEXP sd, se, sw;
    double *x;
    int *d, *e, *w;
    int width, rlabw, clabw, rnw;
    int i, j, jmin, jmax, lbloff = 0;

    if (!isNull(rl))
    formatString(STRING_PTR(rl), r, &rlabw, 0);
    else
    rlabw = IndexWidth(r + 1) + 3;

    if (rn) {
    rnw = strlen(rn);
    if ( rnw < rlabw + R_MIN_LBLOFF )
        lbloff = R_MIN_LBLOFF;
    else
        lbloff = rnw - rlabw;

    rlabw += lbloff;
    }

    PROTECT(sd = allocVector(INTSXP, c));
    PROTECT(se = allocVector(INTSXP, c));
    sw = allocVector(INTSXP, c);
    UNPROTECT(2);
    x = REAL(sx) + offset;
    d = INTEGER(sd);
    e = INTEGER(se);
    w = INTEGER(sw);

    for (j = 0; j < c; j++) {
    formatReal(&x[j * r], r, &w[j], &d[j], &e[j], 0);
    if (!isNull(cl))
        clabw = strlen(CHAR(STRING_ELT(cl, j)));
    else
        clabw = IndexWidth(j + 1) + 3;
    if (w[j] < clabw)
        w[j] = clabw;
    w[j] += R_print.gap;
    }
    jmin = 0;
    jmax = 0;
    while (jmin < c) {
    width = rlabw;
    do {
        width += w[jmax];
        jmax++;
    }
    while (jmax < c && width + w[jmax] < R_print.width);

    if (cn != NULL)
        Rprintf("%*s%s\n", rlabw, "", cn);

    if (rn != NULL)
        Rprintf("%*s", -rlabw, rn);
    else
        Rprintf("%*s", rlabw, "");

    for (j = jmin; j < jmax ; j++)
        MatrixColumnLabel(cl, j, w[j]);
    for (i = 0; i < r; i++) {
        MatrixRowLabel(rl, i, rlabw, lbloff);
        for (j = jmin; j < jmax; j++) {
        Rprintf("%s", EncodeReal(x[i + j * r], w[j], d[j], e[j]));
        }
    }
    Rprintf("\n");
    jmin = jmax;
    }
}

static void printComplexMatrix(SEXP sx, int offset, int r, int c,
                   SEXP rl, SEXP cl, char *rn, char *cn)
{
    SEXP sdr, ser, swr, sdi, sei, swi, sw;
    Rcomplex *x;
    int *dr, *er, *wr, *di, *ei, *wi, *w;
    int width, rlabw, clabw, rnw;
    int i, j, jmin, jmax, lbloff = 0;

    if (!isNull(rl))
    formatString(STRING_PTR(rl), r, &rlabw, 0);
    else
    rlabw = IndexWidth(r + 1) + 3;

    if (rn) {
    rnw = strlen(rn);
    if ( rnw < rlabw + R_MIN_LBLOFF )
        lbloff = R_MIN_LBLOFF;
    else
        lbloff = rnw - rlabw;

    rlabw += lbloff;
    }

    PROTECT(sdr = allocVector(INTSXP, c));
    PROTECT(ser = allocVector(INTSXP, c));
    PROTECT(swr = allocVector(INTSXP, c));
    PROTECT(sdi = allocVector(INTSXP, c));
    PROTECT(sei = allocVector(INTSXP, c));
    PROTECT(swi = allocVector(INTSXP, c));
    PROTECT(sw  = allocVector(INTSXP, c));
    UNPROTECT(7);
    x = COMPLEX(sx) + offset;
    dr = INTEGER(sdr);
    er = INTEGER(ser);
    wr = INTEGER(swr);
    di = INTEGER(sdi);
    ei = INTEGER(sei);
    wi = INTEGER(swi);
    w = INTEGER(sw);

    /* Determine the column widths */

    for (j = 0; j < c; j++) {
    formatComplex(&x[j * r], r,
              &wr[j], &dr[j], &er[j],
              &wi[j], &di[j], &ei[j], 0);
    if (!isNull(cl))
        clabw = strlen(CHAR(STRING_ELT(cl, j)));
    else
        clabw = IndexWidth(j + 1) + 3;
    w[j] = wr[j] + wi[j] + 2;
    if (w[j] < clabw)
        w[j] = clabw;
    w[j] += R_print.gap;
    }

    jmin = 0;
    jmax = 0;
    while (jmin < c) {
    width = rlabw;
    do {
        width += w[jmax];
        jmax++;
    }
    while (jmax < c && width+w[jmax] < R_print.width);

    if (cn != NULL)
        Rprintf("%*s%s\n", rlabw, "", cn);

    if (rn != NULL)
        Rprintf("%*s", -rlabw, rn);
    else
        Rprintf("%*s", rlabw, "");

    for (j = jmin; j < jmax ; j++)
        MatrixColumnLabel(cl, j, w[j]);
    for (i = 0; i < r; i++) {
        MatrixRowLabel(rl, i, rlabw, lbloff);
        for (j = jmin; j < jmax; j++) {
        if (ISNA(x[i + j * r].r) || ISNA(x[i + j * r].i))
            Rprintf("%s", EncodeReal(NA_REAL, w[j], 0, 0));
        else
            Rprintf("%s",
                EncodeComplex(x[i + j * r],
                      wr[j] + R_print.gap, dr[j], er[j],
                      wi[j], di[j], ei[j]));
        }
    }
    Rprintf("\n");
    jmin = jmax;
    }
}

static void printStringMatrix(SEXP sx, int offset, int r, int c,
                  int quote, int right, SEXP rl, SEXP cl,
                  char *rn, char *cn)
{
    SEXP sw;
    SEXP *x;
    int *w;
    int width, rlabw, clabw, rnw;
    int i, j, jmin, jmax, lbloff = 0;

    if (!isNull(rl))
    formatString(STRING_PTR(rl), r, &rlabw, 0);
    else
    rlabw = IndexWidth(r + 1) + 3;

    if (rn) {
    rnw = strlen(rn);
    if ( rnw < rlabw + R_MIN_LBLOFF )
        lbloff = R_MIN_LBLOFF;
    else
        lbloff = rnw - rlabw;

    rlabw += lbloff;
    }

    sw = allocVector(INTSXP, c);
    x = STRING_PTR(sx)+offset;
    w = INTEGER(sw);
    for (j = 0; j < c; j++) {
    formatString(&x[j * r], r, &w[j], quote);
    if (!isNull(cl)) clabw = strlen(CHAR(STRING_ELT(cl, j)));
    else clabw = IndexWidth(j + 1) + 3;
    if (w[j] < clabw)
        w[j] = clabw;
    }
    jmin = 0;
    jmax = 0;
    while (jmin < c) {
    width = rlabw;
    do {
        width += w[jmax] + R_print.gap;
        jmax++;
    }
    while (jmax < c && width + w[jmax] + R_print.gap < R_print.width);

    if (cn != NULL)
        Rprintf("%*s%s\n", rlabw, "", cn);

    if (rn != NULL)
        Rprintf("%*s", -rlabw, rn);
    else
        Rprintf("%*s", rlabw, "");

    if (right) {
        for (j = jmin; j < jmax ; j++)
        RightMatrixColumnLabel(cl, j, w[j]);
    }
    else {
        for (j = jmin; j < jmax ; j++)
        LeftMatrixColumnLabel(cl, j, w[j]);
    }
    for (i = 0; i < r; i++) {
        MatrixRowLabel(rl, i, rlabw, lbloff);
        for (j = jmin; j < jmax; j++) {
        Rprintf("%*s%s", R_print.gap, "",
            EncodeString(CHAR(x[i + j * r]), w[j], quote, right));
        }
    }
    Rprintf("\n");
    jmin = jmax;
    }
}

void printMatrix(SEXP x, int offset, SEXP dim, int quote, int right,
         SEXP rl, SEXP cl, char *rn, char *cn)
{
    int r, c;

    r = INTEGER(dim)[0];
    c = INTEGER(dim)[1];
    /* PR#850 */
    if ((rl!=R_NilValue) && (r>length(rl)))
    error("too few row labels");
    if ((cl!=R_NilValue) && (c>length(cl)))
    error("too few column labels");
    switch (TYPEOF(x)) {
    case LGLSXP:
    printLogicalMatrix(x, offset, r, c, rl, cl, rn, cn);
    break;
    case INTSXP:
    printIntegerMatrix(x, offset, r, c, rl, cl, rn, cn);
    break;
    case REALSXP:
    printRealMatrix(x, offset, r, c, rl, cl, rn, cn);
    break;
    case CPLXSXP:
    printComplexMatrix(x, offset, r, c, rl, cl, rn, cn);
    break;
    case STRSXP:
    if (quote) quote = '"';
    printStringMatrix(x, offset, r, c, quote, right, rl, cl, rn, cn);
    break;
    }
}

static void printArrayGeneral(SEXP x, SEXP dim, int quote, SEXP dimnames)
{
/* == printArray(.) */
    SEXP dn, dnn;
    int i, j, k, l, b, nb, ndim;
    int nr, nc;
    int has_dimnames = 0, has_dnn = 0;
    char *rn = NULL, *cn = NULL;

    ndim = LENGTH(dim);
    if (ndim == 1)
    printVector(x, 1, quote);
    else if (ndim == 2) {
    SEXP rl, cl;
    GetMatrixDimnames(x, &rl, &cl, &rn, &cn);
    printMatrix(x, 0, dim, quote, 0, rl, cl, rn, cn);
    }
    else {
    SEXP dn0, dn1;
    nr = INTEGER(dim)[0];
    nc = INTEGER(dim)[1];
    b = nr * nc;
    nb = 1;
    for (i = 2 ; i < ndim ; i++)
        nb *= INTEGER(dim)[i];
    dnn = R_NilValue;   /* -Wall */
    if (dimnames == R_NilValue) {
        dn0 = R_NilValue;
        dn1 = R_NilValue;
    }
    else {
        dn0 = VECTOR_ELT(dimnames, 0);
        dn1 = VECTOR_ELT(dimnames, 1);
        has_dimnames = 1;
        dnn = getAttrib(dimnames, R_NamesSymbol);
        has_dnn = !isNull(dnn);
        if ( has_dnn ) {
        rn = CHAR(STRING_ELT(dnn, 0));
        cn = CHAR(STRING_ELT(dnn, 1));
        }
    }
    for (i = 0; i < nb; i++) {
        Rprintf(", ");
        k = 1;
        for (j = 2 ; j < ndim; j++) {
        l = (i / k) % INTEGER(dim)[j] + 1;
        if (has_dimnames &&
            ((dn = VECTOR_ELT(dimnames, j)) != R_NilValue)) {
            if ( has_dnn )
            Rprintf(", %s = %s",
                CHAR(STRING_ELT(dnn, j)),
                CHAR(STRING_ELT(dn, l - 1)));
            else
            Rprintf(", %s", CHAR(STRING_ELT(dn, l - 1)));
        } else
            Rprintf(", %d", l);
        k = k * INTEGER(dim)[j];
        }
        Rprintf("\n\n");
        switch (TYPEOF(x)) {
        case LGLSXP:
        printLogicalMatrix(x, i * b, nr, nc, dn0, dn1, rn, cn);
        break;
        case INTSXP:
        printIntegerMatrix(x, i * b, nr, nc, dn0, dn1, rn, cn);
        break;
        case REALSXP:
        printRealMatrix(x, i * b, nr, nc, dn0, dn1, rn, cn);
        break;
        case CPLXSXP:
        printComplexMatrix(x, i * b, nr, nc, dn0, dn1, rn, cn);
        break;
        case STRSXP:
        if (quote) quote = '"';
        printStringMatrix(x, i * b, nr, nc, quote, 0, dn0, dn1, rn, cn);
        break;
        }
        Rprintf("\n");
    }
    }
}

void printArray(SEXP x, SEXP dim, int quote, SEXP dimnames)
{
    printArrayGeneral(x, dim, quote, dimnames);
}