pintos-os.org Git - pspp/blob - src/output/spv/spv-table-look.c

   1 /* PSPP - a program for statistical analysis.
   2    Copyright (C) 2017, 2018, 2020 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17 #include <config.h>
  18
  19 #include "output/spv/spv-table-look.h"
  20
  21 #include <errno.h>
  22 #include <inttypes.h>
  23 #include <libxml/xmlreader.h>
  24 #include <libxml/xmlwriter.h>
  25 #include <string.h>
  26
  27 #include "libpspp/i18n.h"
  28 #include "output/spv/structure-xml-parser.h"
  29 #include "output/spv/tlo-parser.h"
  30 #include "output/pivot-table.h"
  31 #include "output/table.h"
  32
  33 #include "gl/read-file.h"
  34 #include "gl/xalloc.h"
  35 #include "gl/xmemdup0.h"
  36
  37 #include "gettext.h"
  38 #define _(msgid) gettext (msgid)
  39
  40 static struct cell_color
  41 optional_color (int color, struct cell_color default_color)
  42 {
  43   return (color >= 0
  44           ? (struct cell_color) CELL_COLOR (color >> 16, color >> 8, color)
  45           : default_color);
  46 }
  47
  48 static int
  49 optional_length (const char *s, int default_length)
  50 {
  51   /* There is usually a "pt" suffix.  We ignore it. */
  52   int length;
  53   return s && sscanf (s, "%d", &length) == 1 ? length : default_length;
  54 }
  55
  56 static int
  57 optional_px (double inches, int default_px)
  58 {
  59   return inches != DBL_MAX ? inches * 96.0 : default_px;
  60 }
  61
  62 static int
  63 optional_int (int x, int default_value)
  64 {
  65   return x != INT_MIN ? x : default_value;
  66 }
  67
  68 static int
  69 optional_pt (double inches, int default_pt)
  70 {
  71   return inches != DBL_MAX ? inches * 72.0 + .5 : default_pt;
  72 }
  73
  74 static const char *pivot_area_names[PIVOT_N_AREAS] = {
  75   [PIVOT_AREA_TITLE] = "title",
  76   [PIVOT_AREA_CAPTION] = "caption",
  77   [PIVOT_AREA_FOOTER] = "footnotes",
  78   [PIVOT_AREA_CORNER] = "cornerLabels",
  79   [PIVOT_AREA_COLUMN_LABELS] = "columnLabels",
  80   [PIVOT_AREA_ROW_LABELS] = "rowLabels",
  81   [PIVOT_AREA_DATA] = "data",
  82   [PIVOT_AREA_LAYERS] = "layers",
  83 };
  84
  85 static enum pivot_area
  86 pivot_area_from_name (const char *name)
  87 {
  88   enum pivot_area area;
  89   for (area = 0; area < PIVOT_N_AREAS; area++)
  90     if (!strcmp (name, pivot_area_names[area]))
  91       break;
  92   return area;
  93 }
  94
  95 static const char *pivot_border_names[PIVOT_N_BORDERS] = {
  96   [PIVOT_BORDER_TITLE] = "titleLayerSeparator",
  97   [PIVOT_BORDER_OUTER_LEFT] = "leftOuterFrame",
  98   [PIVOT_BORDER_OUTER_TOP] = "topOuterFrame",
  99   [PIVOT_BORDER_OUTER_RIGHT] = "rightOuterFrame",
 100   [PIVOT_BORDER_OUTER_BOTTOM] = "bottomOuterFrame",
 101   [PIVOT_BORDER_INNER_LEFT] = "leftInnerFrame",
 102   [PIVOT_BORDER_INNER_TOP] = "topInnerFrame",
 103   [PIVOT_BORDER_INNER_RIGHT] = "rightInnerFrame",
 104   [PIVOT_BORDER_INNER_BOTTOM] = "bottomInnerFrame",
 105   [PIVOT_BORDER_DATA_LEFT] = "dataAreaLeft",
 106   [PIVOT_BORDER_DATA_TOP] = "dataAreaTop",
 107   [PIVOT_BORDER_DIM_ROW_HORZ] = "horizontalDimensionBorderRows",
 108   [PIVOT_BORDER_DIM_ROW_VERT] = "verticalDimensionBorderRows",
 109   [PIVOT_BORDER_DIM_COL_HORZ] = "horizontalDimensionBorderColumns",
 110   [PIVOT_BORDER_DIM_COL_VERT] = "verticalDimensionBorderColumns",
 111   [PIVOT_BORDER_CAT_ROW_HORZ] = "horizontalCategoryBorderRows",
 112   [PIVOT_BORDER_CAT_ROW_VERT] = "verticalCategoryBorderRows",
 113   [PIVOT_BORDER_CAT_COL_HORZ] = "horizontalCategoryBorderColumns",
 114   [PIVOT_BORDER_CAT_COL_VERT] = "verticalCategoryBorderColumns",
 115 };
 116
 117 static enum pivot_border
 118 pivot_border_from_name (const char *name)
 119 {
 120   enum pivot_border border;
 121   for (border = 0; border < PIVOT_N_BORDERS; border++)
 122     if (!strcmp (name, pivot_border_names[border]))
 123       break;
 124   return border;
 125 }
 126
 127 char * WARN_UNUSED_RESULT
 128 spv_table_look_decode (const struct spvsx_table_properties *in,
 129                        struct pivot_table_look **outp)
 130 {
 131   struct pivot_table_look *out = pivot_table_look_new_builtin_default ();
 132   char *error = NULL;
 133
 134   out->name = xstrdup_if_nonnull (in->name);
 135
 136   const struct spvsx_general_properties *g = in->general_properties;
 137   out->omit_empty = g->hide_empty_rows != 0;
 138   out->width_ranges[TABLE_HORZ][0] = optional_pt (g->minimum_column_width, -1);
 139   out->width_ranges[TABLE_HORZ][1] = optional_pt (g->maximum_column_width, -1);
 140   out->width_ranges[TABLE_VERT][0] = optional_pt (g->minimum_row_width, -1);
 141   out->width_ranges[TABLE_VERT][1] = optional_pt (g->maximum_row_width, -1);
 142   out->row_labels_in_corner
 143     = g->row_dimension_labels != SPVSX_ROW_DIMENSION_LABELS_NESTED;
 144
 145   const struct spvsx_footnote_properties *f = in->footnote_properties;
 146   out->footnote_marker_superscripts
 147     = (f->marker_position != SPVSX_MARKER_POSITION_SUBSCRIPT);
 148   out->show_numeric_markers
 149     = (f->number_format == SPVSX_NUMBER_FORMAT_NUMERIC);
 150
 151   const struct spvsx_cell_format_properties *cfp = in->cell_format_properties;
 152   for (size_t i = 0; i < cfp->n_cell_style; i++)
 153     {
 154       const struct spvsx_cell_style *c = cfp->cell_style[i];
 155       const char *name = CHAR_CAST (const char *, c->node_.raw->name);
 156       enum pivot_area area = pivot_area_from_name (name);
 157       if (area == PIVOT_N_AREAS)
 158         {
 159           error = xasprintf ("unknown area \"%s\" in cellFormatProperties",
 160                              name);
 161           goto error;
 162         }
 163
 164       struct table_area_style *a = &out->areas[area];
 165       const struct spvsx_style *s = c->style;
 166       if (s->font_weight)
 167         a->font_style.bold = s->font_weight == SPVSX_FONT_WEIGHT_BOLD;
 168       if (s->font_style)
 169         a->font_style.italic = s->font_style == SPVSX_FONT_STYLE_ITALIC;
 170       if (s->font_underline)
 171         a->font_style.underline
 172           = s->font_underline == SPVSX_FONT_UNDERLINE_UNDERLINE;
 173       if (s->color >= 0)
 174         a->font_style.fg[0] = optional_color (
 175           s->color, (struct cell_color) CELL_COLOR_BLACK);
 176       if (c->alternating_text_color >= 0 || s->color >= 0)
 177         a->font_style.fg[1] = optional_color (c->alternating_text_color,
 178                                               a->font_style.fg[0]);
 179       if (s->color2 >= 0)
 180         a->font_style.bg[0] = optional_color (
 181           s->color2, (struct cell_color) CELL_COLOR_WHITE);
 182       if (c->alternating_color >= 0 || s->color2 >= 0)
 183         a->font_style.bg[1] = optional_color (c->alternating_color,
 184                                               a->font_style.bg[0]);
 185       if (s->font_family)
 186         {
 187           free (a->font_style.typeface);
 188           a->font_style.typeface = xstrdup (s->font_family);
 189         }
 190
 191       if (s->font_size)
 192         a->font_style.size = optional_length (s->font_size, 0);
 193
 194       if (s->text_alignment)
 195         a->cell_style.halign
 196           = (s->text_alignment == SPVSX_TEXT_ALIGNMENT_LEFT
 197              ? TABLE_HALIGN_LEFT
 198              : s->text_alignment == SPVSX_TEXT_ALIGNMENT_RIGHT
 199              ? TABLE_HALIGN_RIGHT
 200              : s->text_alignment == SPVSX_TEXT_ALIGNMENT_CENTER
 201              ? TABLE_HALIGN_CENTER
 202              : s->text_alignment == SPVSX_TEXT_ALIGNMENT_DECIMAL
 203              ? TABLE_HALIGN_DECIMAL
 204              : TABLE_HALIGN_MIXED);
 205       if (s->label_location_vertical)
 206         a->cell_style.valign
 207           = (s->label_location_vertical == SPVSX_LABEL_LOCATION_VERTICAL_NEGATIVE
 208              ? TABLE_VALIGN_BOTTOM
 209              : s->label_location_vertical == SPVSX_LABEL_LOCATION_VERTICAL_POSITIVE
 210              ? TABLE_VALIGN_TOP
 211              : TABLE_VALIGN_CENTER);
 212
 213       if (s->decimal_offset != DBL_MAX)
 214         a->cell_style.decimal_offset = optional_px (s->decimal_offset, 0);
 215
 216       if (s->margin_left != DBL_MAX)
 217         a->cell_style.margin[TABLE_HORZ][0] = optional_px (s->margin_left, 8);
 218       if (s->margin_right != DBL_MAX)
 219         a->cell_style.margin[TABLE_HORZ][1] = optional_px (s->margin_right,
 220                                                            11);
 221       if (s->margin_top != DBL_MAX)
 222         a->cell_style.margin[TABLE_VERT][0] = optional_px (s->margin_top, 1);
 223       if (s->margin_bottom != DBL_MAX)
 224         a->cell_style.margin[TABLE_VERT][1] = optional_px (s->margin_bottom,
 225                                                            1);
 226     }
 227
 228   const struct spvsx_border_properties *bp = in->border_properties;
 229   for (size_t i = 0; i < bp->n_border_style; i++)
 230     {
 231       const struct spvsx_border_style *bin = bp->border_style[i];
 232       const char *name = CHAR_CAST (const char *, bin->node_.raw->name);
 233       enum pivot_border border = pivot_border_from_name (name);
 234       if (border == PIVOT_N_BORDERS)
 235         {
 236           error = xasprintf ("unknown border \"%s\" parsing borderProperties",
 237                              name);
 238           goto error;
 239         }
 240
 241       struct table_border_style *bout = &out->borders[border];
 242       bout->stroke
 243         = (bin->border_style_type == SPVSX_BORDER_STYLE_TYPE_NONE
 244            ? TABLE_STROKE_NONE
 245            : bin->border_style_type == SPVSX_BORDER_STYLE_TYPE_DASHED
 246            ? TABLE_STROKE_DASHED
 247            : bin->border_style_type == SPVSX_BORDER_STYLE_TYPE_THICK
 248            ? TABLE_STROKE_THICK
 249            : bin->border_style_type == SPVSX_BORDER_STYLE_TYPE_THIN
 250            ? TABLE_STROKE_THIN
 251            : bin->border_style_type == SPVSX_BORDER_STYLE_TYPE_DOUBLE
 252            ? TABLE_STROKE_DOUBLE
 253            : TABLE_STROKE_SOLID);
 254       bout->color = optional_color (bin->color,
 255                                     (struct cell_color) CELL_COLOR_BLACK);
 256     }
 257
 258   const struct spvsx_printing_properties *pp = in->printing_properties;
 259   out->print_all_layers = pp->print_all_layers > 0;
 260   out->paginate_layers = pp->print_each_layer_on_separate_page > 0;
 261   out->shrink_to_fit[TABLE_HORZ] = pp->rescale_wide_table_to_fit_page > 0;
 262   out->shrink_to_fit[TABLE_VERT] = pp->rescale_long_table_to_fit_page > 0;
 263   out->top_continuation = pp->continuation_text_at_top > 0;
 264   out->bottom_continuation = pp->continuation_text_at_bottom > 0;
 265   free (out->continuation);
 266   out->continuation = xstrdup (pp->continuation_text
 267                                ? pp->continuation_text : "(cont.)");
 268   out->n_orphan_lines = optional_int (pp->window_orphan_lines, 2);
 269
 270   *outp = out;
 271   return NULL;
 272
 273 error:
 274   pivot_table_look_unref (out);
 275   *outp = NULL;
 276   return error;
 277 }
 278 \f
 279 static struct cell_color
 280 tlo_decode_color (uint32_t c)
 281 {
 282   return (struct cell_color) CELL_COLOR (c, c >> 8, c >> 16);
 283 }
 284
 285 static void
 286 tlo_decode_border (const struct tlo_separator *in,
 287                    struct table_border_style *out)
 288 {
 289   if (in->type == 0)
 290     {
 291       out->stroke = TABLE_STROKE_NONE;
 292       return;
 293     }
 294
 295   out->color = tlo_decode_color (in->type_01.color);
 296
 297   switch (in->type_01.style)
 298     {
 299     case 0:
 300       out->stroke = (in->type_01.width == 0 ? TABLE_STROKE_THIN
 301                      : in->type_01.width == 1 ? TABLE_STROKE_SOLID
 302                      : TABLE_STROKE_THICK);
 303       break;
 304
 305     case 1:
 306       out->stroke = TABLE_STROKE_DOUBLE;
 307       break;
 308
 309     case 2:
 310       out->stroke = TABLE_STROKE_DASHED;
 311       break;
 312     }
 313 }
 314
 315 static struct cell_color
 316 interpolate_colors (struct cell_color c0, struct cell_color c1, int shading)
 317 {
 318   if (shading <= 0)
 319     return c0;
 320   else if (shading >= 10)
 321     return c1;
 322   else
 323     {
 324       int x0 = 10 - shading;
 325       int x1 = shading;
 326
 327       return (struct cell_color) CELL_COLOR ((c0.r * x0 + c1.r * x1) / 10,
 328                                              (c0.g * x0 + c1.g * x1) / 10,
 329                                              (c0.b * x0 + c1.b * x1) / 10);
 330     }
 331 }
 332
 333 static void
 334 tlo_decode_area (const struct tlo_area_color *color,
 335                  const struct tlo_area_style *style,
 336                  struct table_area_style *out)
 337 {
 338   out->cell_style.halign = (style->halign == 0 ? TABLE_HALIGN_LEFT
 339                             : style->halign == 1 ? TABLE_HALIGN_RIGHT
 340                             : style->halign == 2 ? TABLE_HALIGN_CENTER
 341                             : style->halign == 4 ? TABLE_HALIGN_DECIMAL
 342                             : TABLE_HALIGN_MIXED);
 343   out->cell_style.valign = (style->valign == 0 ? TABLE_VALIGN_TOP
 344                             : style->valign == 1 ? TABLE_VALIGN_BOTTOM
 345                             : TABLE_VALIGN_CENTER);
 346   out->cell_style.decimal_offset = style->decimal_offset / 20;
 347   out->cell_style.decimal_char = '.';                  /* XXX */
 348   out->cell_style.margin[TABLE_HORZ][0] = style->left_margin / 20;
 349   out->cell_style.margin[TABLE_HORZ][1] = style->right_margin / 20;
 350   out->cell_style.margin[TABLE_VERT][0] = style->top_margin / 20;
 351   out->cell_style.margin[TABLE_VERT][1] = style->bottom_margin / 20;
 352
 353   out->font_style.bold = style->weight > 400;
 354   out->font_style.italic = style->italic;
 355   out->font_style.underline = style->underline;
 356   out->font_style.markup = false;
 357
 358   out->font_style.fg[0] = out->font_style.fg[1]
 359     = tlo_decode_color (style->text_color);
 360
 361   struct cell_color c0 = tlo_decode_color (color->color0);
 362   struct cell_color c10 = tlo_decode_color (color->color10);
 363   struct cell_color bg = interpolate_colors (c0, c10, color->shading);
 364   out->font_style.bg[0] = out->font_style.bg[1] = bg;
 365
 366   free (out->font_style.typeface);
 367   out->font_style.typeface = recode_string (
 368     "UTF-8", "ISO-8859-1",
 369     CHAR_CAST (char *, style->font_name), style->font_name_len);
 370   out->font_style.size = -style->font_size * 3 / 4;
 371 }
 372
 373 static struct pivot_table_look *
 374 tlo_decode (const struct tlo_table_look *in)
 375 {
 376   struct pivot_table_look *out = pivot_table_look_new_builtin_default ();
 377
 378   const uint16_t flags = in->tl->flags;
 379
 380   out->omit_empty = (flags & 0x02) != 0;
 381   out->row_labels_in_corner = !in->tl->nested_row_labels;
 382   if (in->v2_styles)
 383     {
 384       out->width_ranges[TABLE_HORZ][0] = in->v2_styles->min_col_width;
 385       out->width_ranges[TABLE_HORZ][1] = in->v2_styles->max_col_width;
 386       out->width_ranges[TABLE_VERT][0] = in->v2_styles->min_row_height;
 387       out->width_ranges[TABLE_VERT][1] = in->v2_styles->max_row_height;
 388     }
 389   else
 390     {
 391       out->width_ranges[TABLE_HORZ][0] = 36;
 392       out->width_ranges[TABLE_HORZ][1] = 72;
 393       out->width_ranges[TABLE_VERT][0] = 36;
 394       out->width_ranges[TABLE_VERT][1] = 120;
 395     }
 396
 397   out->show_numeric_markers = flags & 0x04;
 398   out->footnote_marker_superscripts = !in->tl->footnote_marker_subscripts;
 399
 400   for (int i = 0; i < 4; i++)
 401     {
 402       static const enum pivot_border map[4] =
 403         {
 404           PIVOT_BORDER_DIM_ROW_HORZ,
 405           PIVOT_BORDER_DIM_ROW_VERT,
 406           PIVOT_BORDER_CAT_ROW_HORZ,
 407           PIVOT_BORDER_CAT_ROW_VERT,
 408         };
 409       tlo_decode_border (in->ss->sep1[i], &out->borders[map[i]]);
 410     }
 411
 412   for (int i = 0; i < 4; i++)
 413     {
 414       static const enum pivot_border map[4] =
 415         {
 416           PIVOT_BORDER_DIM_COL_HORZ,
 417           PIVOT_BORDER_DIM_COL_VERT,
 418           PIVOT_BORDER_CAT_COL_HORZ,
 419           PIVOT_BORDER_CAT_COL_VERT,
 420         };
 421       tlo_decode_border (in->ss->sep2[i], &out->borders[map[i]]);
 422     }
 423
 424   if (in->v2_styles)
 425     for (int i = 0; i < 11; i++)
 426       {
 427         static const enum pivot_border map[11] =
 428           {
 429             PIVOT_BORDER_TITLE,
 430             PIVOT_BORDER_INNER_LEFT,
 431             PIVOT_BORDER_INNER_RIGHT,
 432             PIVOT_BORDER_INNER_TOP,
 433             PIVOT_BORDER_INNER_BOTTOM,
 434             PIVOT_BORDER_OUTER_LEFT,
 435             PIVOT_BORDER_OUTER_RIGHT,
 436             PIVOT_BORDER_OUTER_TOP,
 437             PIVOT_BORDER_OUTER_BOTTOM,
 438             PIVOT_BORDER_DATA_LEFT,
 439             PIVOT_BORDER_DATA_TOP,
 440           };
 441         tlo_decode_border (in->v2_styles->sep3[i], &out->borders[map[i]]);
 442       }
 443   else
 444     {
 445       out->borders[PIVOT_BORDER_TITLE].stroke = TABLE_STROKE_NONE;
 446       out->borders[PIVOT_BORDER_INNER_LEFT].stroke = TABLE_STROKE_SOLID;
 447       out->borders[PIVOT_BORDER_INNER_TOP].stroke = TABLE_STROKE_SOLID;
 448       out->borders[PIVOT_BORDER_INNER_RIGHT].stroke = TABLE_STROKE_SOLID;
 449       out->borders[PIVOT_BORDER_INNER_BOTTOM].stroke = TABLE_STROKE_SOLID;
 450       out->borders[PIVOT_BORDER_OUTER_LEFT].stroke = TABLE_STROKE_NONE;
 451       out->borders[PIVOT_BORDER_OUTER_TOP].stroke = TABLE_STROKE_NONE;
 452       out->borders[PIVOT_BORDER_OUTER_RIGHT].stroke = TABLE_STROKE_NONE;
 453       out->borders[PIVOT_BORDER_OUTER_BOTTOM].stroke = TABLE_STROKE_NONE;
 454       out->borders[PIVOT_BORDER_DATA_LEFT].stroke = TABLE_STROKE_NONE;
 455       out->borders[PIVOT_BORDER_DATA_TOP].stroke = TABLE_STROKE_NONE;
 456     }
 457
 458   tlo_decode_area (in->cs->title_color, in->ts->title_style,
 459                    &out->areas[PIVOT_AREA_TITLE]);
 460   for (int i = 0; i < 7; i++)
 461     {
 462       static const enum pivot_area map[7] = {
 463         PIVOT_AREA_LAYERS,
 464         PIVOT_AREA_CORNER,
 465         PIVOT_AREA_ROW_LABELS,
 466         PIVOT_AREA_COLUMN_LABELS,
 467         PIVOT_AREA_DATA,
 468         PIVOT_AREA_CAPTION,
 469         PIVOT_AREA_FOOTER
 470       };
 471       tlo_decode_area (in->ts->most_areas[i]->color,
 472                        in->ts->most_areas[i]->style,
 473                        &out->areas[map[i]]);
 474     }
 475
 476   out->print_all_layers = flags & 0x08;
 477   out->paginate_layers = flags & 0x40;
 478   out->shrink_to_fit[TABLE_HORZ] = flags & 0x10;
 479   out->shrink_to_fit[TABLE_VERT] = flags & 0x20;
 480   out->top_continuation = flags & 0x80;
 481   out->bottom_continuation = flags & 0x100;
 482   if (in->v2_styles)
 483     {
 484       free (out->continuation);
 485       out->continuation = xmemdup0 (in->v2_styles->continuation,
 486                                     in->v2_styles->continuation_len);
 487     }
 488   /* n_orphan_lines isn't in .tlo files AFAICT. */
 489
 490   return out;
 491 }
 492 \f
 493 char * WARN_UNUSED_RESULT
 494 spv_table_look_read (const char *filename, struct pivot_table_look **outp)
 495 {
 496   *outp = NULL;
 497
 498   size_t length;
 499   char *file = read_file (filename, 0, &length);
 500   if (!file)
 501     return xasprintf ("%s: failed to read file (%s)",
 502                       filename, strerror (errno));
 503
 504   if ((uint8_t) file[0] == 0xff)
 505     {
 506       struct spvbin_input input;
 507       spvbin_input_init (&input, file, length);
 508
 509       struct tlo_table_look *look;
 510       char *error = NULL;
 511       if (!tlo_parse_table_look (&input, &look))
 512         error = spvbin_input_to_error (&input, NULL);
 513       else
 514         {
 515           *outp = tlo_decode (look);
 516           tlo_free_table_look (look);
 517         }
 518       return error;
 519     }
 520   else
 521     {
 522       xmlDoc *doc = xmlReadMemory (file, length, NULL, NULL, XML_PARSE_NOBLANKS);
 523       free (file);
 524       if (!doc)
 525         return xasprintf ("%s: failed to parse XML", filename);
 526
 527       struct spvxml_context ctx = SPVXML_CONTEXT_INIT (ctx);
 528       struct spvsx_table_properties *tp;
 529       spvsx_parse_table_properties (&ctx, xmlDocGetRootElement (doc), &tp);
 530       char *error = spvxml_context_finish (&ctx, &tp->node_);
 531
 532       if (!error)
 533         error = spv_table_look_decode (tp, outp);
 534
 535       spvsx_free_table_properties (tp);
 536       xmlFreeDoc (doc);
 537
 538       return error;
 539     }
 540 }
 541
 542 static void
 543 write_attr (xmlTextWriter *xml, const char *name, const char *value)
 544 {
 545   xmlTextWriterWriteAttribute (xml,
 546                                CHAR_CAST (xmlChar *, name),
 547                                CHAR_CAST (xmlChar *, value));
 548 }
 549
 550 static void PRINTF_FORMAT (3, 4)
 551 write_attr_format (xmlTextWriter *xml, const char *name,
 552                    const char *format, ...)
 553 {
 554   va_list args;
 555   va_start (args, format);
 556   char *value = xvasprintf (format, args);
 557   va_end (args);
 558
 559   write_attr (xml, name, value);
 560   free (value);
 561 }
 562
 563 static void
 564 write_attr_color (xmlTextWriter *xml, const char *name,
 565                   const struct cell_color *color)
 566 {
 567   write_attr_format (xml, name, "#%02"PRIx8"%02"PRIx8"%02"PRIx8,
 568                      color->r, color->g, color->b);
 569 }
 570
 571 static void
 572 write_attr_dimension (xmlTextWriter *xml, const char *name, int px)
 573 {
 574   int pt = px / 96.0 * 72.0;
 575   write_attr_format (xml, name, "%dpt", pt);
 576 }
 577
 578 static void
 579 write_attr_bool (xmlTextWriter *xml, const char *name, bool b)
 580 {
 581   write_attr (xml, name, b ? "true" : "false");
 582 }
 583
 584 static void
 585 start_elem (xmlTextWriter *xml, const char *name)
 586 {
 587   xmlTextWriterStartElement (xml, CHAR_CAST (xmlChar *, name));
 588 }
 589
 590 static void
 591 end_elem (xmlTextWriter *xml)
 592 {
 593   xmlTextWriterEndElement (xml);
 594 }
 595
 596 char * WARN_UNUSED_RESULT
 597 spv_table_look_write (const char *filename, const struct pivot_table_look *look)
 598 {
 599   FILE *file = fopen (filename, "w");
 600   if (!file)
 601     return xasprintf (_("%s: create failed (%s)"), filename, strerror (errno));
 602
 603   xmlTextWriter *xml = xmlNewTextWriter (xmlOutputBufferCreateFile (
 604                                            file, NULL));
 605   if (!xml)
 606     {
 607       fclose (file);
 608       return xasprintf (_("%s: failed to start writing XML"), filename);
 609     }
 610
 611   xmlTextWriterSetIndent (xml, 1);
 612   xmlTextWriterSetIndentString (xml, CHAR_CAST (xmlChar *, "    "));
 613
 614   xmlTextWriterStartDocument (xml, NULL, "UTF-8", NULL);
 615   start_elem (xml, "tableProperties");
 616   if (look->name)
 617     write_attr (xml, "name", look->name);
 618   write_attr (xml, "xmlns", "http://www.ibm.com/software/analytics/spss/xml/table-looks");
 619   write_attr (xml, "xmlns:vizml", "http://www.ibm.com/software/analytics/spss/xml/visualization");
 620   write_attr (xml, "xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance");
 621   write_attr (xml, "xsi:schemaLocation", "http://www.ibm.com/software/analytics/spss/xml/table-looks http://www.ibm.com/software/analytics/spss/xml/table-looks/table-looks-1.4.xsd");
 622
 623   start_elem (xml, "generalProperties");
 624   write_attr_bool (xml, "hideEmptyRows", look->omit_empty);
 625   const int (*wr)[2] = look->width_ranges;
 626   write_attr_format (xml, "maximumColumnWidth", "%d", wr[TABLE_HORZ][1]);
 627   write_attr_format (xml, "maximumRowWidth", "%d", wr[TABLE_VERT][1]);
 628   write_attr_format (xml, "minimumColumnWidth", "%d", wr[TABLE_HORZ][0]);
 629   write_attr_format (xml, "minimumRowWidth", "%d", wr[TABLE_VERT][0]);
 630   write_attr (xml, "rowDimensionLabels",
 631               look->row_labels_in_corner ? "inCorner" : "nested");
 632   end_elem (xml);
 633
 634   start_elem (xml, "footnoteProperties");
 635   write_attr (xml, "markerPosition",
 636               look->footnote_marker_superscripts ? "superscript" : "subscript");
 637   write_attr (xml, "numberFormat",
 638               look->show_numeric_markers ? "numeric" : "alphabetic");
 639   end_elem (xml);
 640
 641   start_elem (xml, "cellFormatProperties");
 642   for (enum pivot_area a = 0; a < PIVOT_N_AREAS; a++)
 643     {
 644       const struct table_area_style *area = &look->areas[a];
 645       const struct font_style *font = &area->font_style;
 646       const struct cell_style *cell = &area->cell_style;
 647
 648       start_elem (xml, pivot_area_names[a]);
 649       if (a == PIVOT_AREA_DATA
 650           && (!cell_color_equal (&font->fg[0], &font->fg[1])
 651               || !cell_color_equal (&font->bg[0], &font->bg[1])))
 652         {
 653           write_attr_color (xml, "alternatingColor", &font->bg[1]);
 654           write_attr_color (xml, "alternatingTextColor", &font->fg[1]);
 655         }
 656
 657       start_elem (xml, "vizml:style");
 658       write_attr_color (xml, "color", &font->fg[0]);
 659       write_attr_color (xml, "color2", &font->bg[0]);
 660       write_attr (xml, "font-family", font->typeface);
 661       write_attr_format (xml, "font-size", "%dpt", font->size);
 662       write_attr (xml, "font-weight", font->bold ? "bold" : "regular");
 663       write_attr (xml, "font-underline",
 664                   font->underline ? "underline" : "none");
 665       write_attr (xml, "labelLocationVertical",
 666                   cell->valign == TABLE_VALIGN_BOTTOM ? "negative"
 667                   : cell->valign == TABLE_VALIGN_TOP ? "positive"
 668                   : "center");
 669       write_attr_dimension (xml, "margin-bottom", cell->margin[TABLE_VERT][1]);
 670       write_attr_dimension (xml, "margin-left", cell->margin[TABLE_HORZ][0]);
 671       write_attr_dimension (xml, "margin-right", cell->margin[TABLE_HORZ][1]);
 672       write_attr_dimension (xml, "margin-top", cell->margin[TABLE_VERT][0]);
 673       write_attr (xml, "textAlignment",
 674                   cell->halign == TABLE_HALIGN_LEFT ? "left"
 675                   : cell->halign == TABLE_HALIGN_RIGHT ? "right"
 676                   : cell->halign == TABLE_HALIGN_CENTER ? "center"
 677                   : cell->halign == TABLE_HALIGN_DECIMAL ? "decimal"
 678                   : "mixed");
 679       if (cell->halign == TABLE_HALIGN_DECIMAL)
 680         write_attr_dimension (xml, "decimal-offset", cell->decimal_offset);
 681       end_elem (xml);
 682
 683       end_elem (xml);
 684     }
 685   end_elem (xml);
 686
 687   start_elem (xml, "borderProperties");
 688   for (enum pivot_border b = 0; b < PIVOT_N_BORDERS; b++)
 689     {
 690       const struct table_border_style *border = &look->borders[b];
 691
 692       start_elem (xml, pivot_border_names[b]);
 693
 694       static const char *table_stroke_names[TABLE_N_STROKES] =
 695         {
 696           [TABLE_STROKE_NONE] = "none",
 697           [TABLE_STROKE_SOLID] = "solid",
 698           [TABLE_STROKE_DASHED] = "dashed",
 699           [TABLE_STROKE_THICK] = "thick",
 700           [TABLE_STROKE_THIN] = "thin",
 701           [TABLE_STROKE_DOUBLE] = "double",
 702         };
 703       write_attr (xml, "borderStyleType", table_stroke_names[border->stroke]);
 704       write_attr_color (xml, "color", &border->color);
 705       end_elem (xml);
 706     }
 707   end_elem (xml);
 708
 709   start_elem (xml, "printingProperties");
 710   write_attr_bool (xml, "printAllLayers", look->print_all_layers);
 711   write_attr_bool (xml, "rescaleLongTableToFitPage",
 712                    look->shrink_to_fit[TABLE_HORZ]);
 713   write_attr_bool (xml, "rescaleWideTableToFitPage",
 714                    look->shrink_to_fit[TABLE_VERT]);
 715   write_attr_format (xml, "windowOrphanLines", "%zu", look->n_orphan_lines);
 716   if (look->continuation && look->continuation[0]
 717       && (look->top_continuation || look->bottom_continuation))
 718     {
 719       write_attr (xml, "continuationText", look->continuation);
 720       write_attr_bool (xml, "continuationTextAtTop", look->top_continuation);
 721       write_attr_bool (xml, "continuationTextAtBottom",
 722                        look->bottom_continuation);
 723     }
 724   end_elem (xml);
 725
 726   xmlTextWriterEndDocument (xml);
 727
 728   xmlFreeTextWriter (xml);
 729
 730   fflush (file);
 731   bool ok = !ferror (file);
 732   if (fclose (file) == EOF)
 733     ok = false;
 734
 735   if (!ok)
 736     return xasprintf (_("%s: error writing file (%s)"),
 737                       filename, strerror (errno));
 738
 739   return NULL;
 740 }