1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2009, 2011, 2014, 2016 Free Software Foundation, Inc.
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.
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.
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/>. */
19 #include "output/table.h"
20 #include "output/table-provider.h"
26 #include "data/format.h"
27 #include "libpspp/assertion.h"
28 #include "libpspp/cast.h"
29 #include "libpspp/compiler.h"
30 #include "libpspp/pool.h"
31 #include "libpspp/str.h"
32 #include "output/table-item.h"
34 #include "gl/xalloc.h"
36 /* Increases TABLE's reference count, indicating that it has an additional
37 owner. An table that is shared among multiple owners must not be
40 table_ref (const struct table *table_)
42 struct table *table = CONST_CAST (struct table *, table_);
47 /* Decreases TABLE's reference count, indicating that it has one fewer owner.
48 If TABLE no longer has any owners, it is freed. */
50 table_unref (struct table *table)
54 assert (table->ref_cnt > 0);
55 if (--table->ref_cnt == 0)
56 table->klass->destroy (table);
60 /* Returns true if TABLE has more than one owner. A table item that is shared
61 among multiple owners must not be modified. */
63 table_is_shared (const struct table *table)
65 return table->ref_cnt > 1;
68 /* Sets the number of left header columns in TABLE to HL. */
70 table_set_hl (struct table *table, int hl)
72 assert (!table_is_shared (table));
73 table->h[TABLE_HORZ][0] = hl;
76 /* Sets the number of right header columns in TABLE to HR. */
78 table_set_hr (struct table *table, int hr)
80 assert (!table_is_shared (table));
81 table->h[TABLE_HORZ][1] = hr;
84 /* Sets the number of top header rows in TABLE to HT. */
86 table_set_ht (struct table *table, int ht)
88 assert (!table_is_shared (table));
89 table->h[TABLE_VERT][0] = ht;
92 /* Sets the number of top header rows in TABLE to HB. */
94 table_set_hb (struct table *table, int hb)
96 assert (!table_is_shared (table));
97 table->h[TABLE_VERT][1] = hb;
100 /* Initializes TABLE as a table of the specified CLASS, initially with a
101 reference count of 1.
103 TABLE initially has 0 rows and columns and no headers. The table
104 implementation should update the numbers of rows and columns. The table
105 implementation (or its client) may update the header rows and columns.
107 A table is an abstract class, that is, a plain struct table is not useful on
108 its own. Thus, this function is normally called from the initialization
109 function of some subclass of table. */
111 table_init (struct table *table, const struct table_class *class)
113 table->klass = class;
114 table->n[TABLE_HORZ] = table->n[TABLE_VERT] = 0;
115 table->h[TABLE_HORZ][0] = table->h[TABLE_HORZ][1] = 0;
116 table->h[TABLE_VERT][0] = table->h[TABLE_VERT][1] = 0;
120 /* Sets the number of columns in TABLE to NC. */
122 table_set_nc (struct table *table, int nc)
124 assert (!table_is_shared (table));
125 table->n[TABLE_HORZ] = nc;
128 /* Sets the number of rows in TABLE to NR. */
130 table_set_nr (struct table *table, int nr)
132 assert (!table_is_shared (table));
133 table->n[TABLE_VERT] = nr;
137 area_style_clone (struct pool *pool, const struct area_style *old)
139 struct area_style *new = pool_malloc (pool, sizeof *new);
141 if (new->font_style.typeface)
142 new->font_style.typeface = pool_strdup (pool, new->font_style.typeface);
147 area_style_free (struct area_style *style)
151 free (style->font_style.typeface);
156 /* Initializes CELL with the contents of the table cell at column X and row Y
157 within TABLE. When CELL is no longer needed, the caller is responsible for
158 freeing it by calling table_cell_free(CELL).
160 The caller must ensure that CELL is destroyed before TABLE is unref'ed. */
162 table_get_cell (const struct table *table, int x, int y,
163 struct table_cell *cell)
165 assert (x >= 0 && x < table->n[TABLE_HORZ]);
166 assert (y >= 0 && y < table->n[TABLE_VERT]);
168 static const struct area_style default_style = AREA_STYLE_INITIALIZER;
169 cell->style = &default_style;
171 table->klass->get_cell (table, x, y, cell);
174 /* Frees CELL, which should have been initialized by calling
177 table_cell_free (struct table_cell *cell)
179 if (cell->destructor != NULL)
180 cell->destructor (cell->destructor_aux);
183 /* Returns one of the TAL_* enumeration constants (declared in output/table.h)
184 representing a rule running alongside one of the cells in TABLE.
186 Suppose NC is the number of columns in TABLE and NR is the number of rows.
187 Then, if AXIS is TABLE_HORZ, then 0 <= X <= NC and 0 <= Y < NR. If (X,Y) =
188 (0,0), the return value is the rule that runs vertically on the left side of
189 cell (0,0); if (X,Y) = (1,0), it is the vertical rule between that cell and
190 cell (1,0); and so on, up to (NC,0), which runs vertically on the right of
193 The following diagram illustrates the meaning of (X,Y) for AXIS = TABLE_HORZ
194 within a 7x7 table. The '|' characters at the intersection of the X labels
195 and Y labels show the rule whose style would be returned by calling
196 table_get_rule with those X and Y values:
199 +--+--+--+--+--+--+--+
201 +--+--+--+--+--+--+--+
203 +--+--+--+--+--+--+--+
205 +--+--+--+--+--+--+--+
207 +--+--+--+--+--+--+--+
209 +--+--+--+--+--+--+--+
211 +--+--+--+--+--+--+--+
213 +--+--+--+--+--+--+--+
215 Similarly, if AXIS is TABLE_VERT, then 0 <= X < NC and 0 <= Y <= NR. If
216 (X,Y) = (0,0), the return value is the rule that runs horizontally above
217 the top of cell (0,0); if (X,Y) = (0,1), it is the horizontal rule
218 between that cell and cell (0,1); and so on, up to (0,NR), which runs
219 horizontally below cell (0,NR-1). */
221 table_get_rule (const struct table *table, enum table_axis axis, int x, int y,
222 struct cell_color *color)
224 assert (x >= 0 && x < table->n[TABLE_HORZ] + (axis == TABLE_HORZ));
225 assert (y >= 0 && y < table->n[TABLE_VERT] + (axis == TABLE_VERT));
226 *color = (struct cell_color) CELL_COLOR_BLACK;
227 return table->klass->get_rule (table, axis, x, y, color);
231 table_cell_format_footnote_markers (const struct table_cell *cell,
234 for (size_t i = 0; i < cell->n_footnotes; i++)
237 ds_put_byte (s, ',');
238 ds_put_cstr (s, cell->footnotes[i]->marker);
242 static const struct footnote **
243 add_footnotes (const struct footnote **refs, size_t n_refs,
244 const struct footnote **footnotes, size_t *allocated, size_t *n)
246 for (size_t i = 0; i < n_refs; i++)
248 const struct footnote *f = refs[i];
249 if (f->idx >= *allocated)
251 size_t new_allocated = (f->idx + 1) * 2;
252 footnotes = xrealloc (footnotes, new_allocated * sizeof *footnotes);
253 while (*allocated < new_allocated)
254 footnotes[(*allocated)++] = NULL;
256 footnotes[f->idx] = f;
264 table_collect_footnotes (const struct table_item *item,
265 const struct footnote ***footnotesp)
267 const struct footnote **footnotes = NULL;
268 size_t allocated = 0;
271 struct table *t = item->table;
272 for (int y = 0; y < table_nr (t); y++)
274 struct table_cell cell;
275 for (int x = 0; x < table_nc (t); x = cell.d[TABLE_HORZ][1])
277 table_get_cell (t, x, y, &cell);
279 if (x == cell.d[TABLE_HORZ][0] && y == cell.d[TABLE_VERT][0])
280 footnotes = add_footnotes (cell.footnotes, cell.n_footnotes,
281 footnotes, &allocated, &n);
282 table_cell_free (&cell);
286 const struct table_item_text *title = table_item_get_title (item);
288 footnotes = add_footnotes (title->footnotes, title->n_footnotes,
289 footnotes, &allocated, &n);
291 const struct table_item_text *caption = table_item_get_caption (item);
293 footnotes = add_footnotes (caption->footnotes, caption->n_footnotes,
294 footnotes, &allocated, &n);
296 *footnotesp = footnotes;
304 enum table_halign halign;
307 static const struct table_class table_string_class;
309 /* Returns a table that contains a single cell, whose contents are S with
310 options OPTIONS (a combination of TAB_* values). */
312 table_from_string (enum table_halign halign, const char *s)
314 struct table_string *ts = xmalloc (sizeof *ts);
315 table_init (&ts->table, &table_string_class);
316 ts->table.n[TABLE_HORZ] = ts->table.n[TABLE_VERT] = 1;
317 ts->string = xstrdup (s);
322 static struct table_string *
323 table_string_cast (const struct table *table)
325 assert (table->klass == &table_string_class);
326 return UP_CAST (table, struct table_string, table);
330 table_string_destroy (struct table *ts_)
332 struct table_string *ts = table_string_cast (ts_);
338 table_string_get_cell (const struct table *ts_, int x UNUSED, int y UNUSED,
339 struct table_cell *cell)
341 static const struct area_style styles[] = {
342 #define S(H) [H] = { AREA_STYLE_INITIALIZER__, .cell_style.halign = H }
343 S(TABLE_HALIGN_LEFT),
344 S(TABLE_HALIGN_CENTER),
345 S(TABLE_HALIGN_RIGHT),
346 S(TABLE_HALIGN_MIXED),
347 S(TABLE_HALIGN_DECIMAL),
349 struct table_string *ts = table_string_cast (ts_);
350 cell->d[TABLE_HORZ][0] = 0;
351 cell->d[TABLE_HORZ][1] = 1;
352 cell->d[TABLE_VERT][0] = 0;
353 cell->d[TABLE_VERT][1] = 1;
355 cell->style = &styles[table_halign_interpret (ts->halign, false)];
356 cell->text = ts->string;
357 cell->n_footnotes = 0;
358 cell->destructor = NULL;
363 table_string_get_rule (const struct table *ts UNUSED,
364 enum table_axis axis UNUSED, int x UNUSED, int y UNUSED,
365 struct cell_color *color UNUSED)
370 static const struct table_class table_string_class =
372 table_string_destroy,
373 table_string_get_cell,
374 table_string_get_rule,
378 table_halign_to_string (enum table_halign halign)
382 case TABLE_HALIGN_LEFT: return "left";
383 case TABLE_HALIGN_CENTER: return "center";
384 case TABLE_HALIGN_RIGHT: return "right";
385 case TABLE_HALIGN_DECIMAL: return "decimal";
386 case TABLE_HALIGN_MIXED: return "mixed";
387 default: return "**error**";
392 table_valign_to_string (enum table_valign valign)
396 case TABLE_VALIGN_TOP: return "top";
397 case TABLE_VALIGN_CENTER: return "center";
398 case TABLE_VALIGN_BOTTOM: return "bottom";
399 default: return "**error**";
404 table_halign_interpret (enum table_halign halign, bool numeric)
408 case TABLE_HALIGN_LEFT:
409 case TABLE_HALIGN_CENTER:
410 case TABLE_HALIGN_RIGHT:
413 case TABLE_HALIGN_MIXED:
414 return numeric ? TABLE_HALIGN_RIGHT : TABLE_HALIGN_LEFT;
416 case TABLE_HALIGN_DECIMAL:
417 return TABLE_HALIGN_DECIMAL;
425 font_style_copy (struct font_style *dst, const struct font_style *src)
429 dst->typeface = xstrdup (dst->typeface);
433 font_style_uninit (struct font_style *font)
436 free (font->typeface);
440 area_style_copy (struct area_style *dst, const struct area_style *src)
442 font_style_copy (&dst->font_style, &src->font_style);
443 dst->cell_style = src->cell_style;
447 area_style_uninit (struct area_style *area)
450 font_style_uninit (&area->font_style);
454 table_stroke_to_string (enum table_stroke stroke)
458 case TABLE_STROKE_NONE: return "none";
459 case TABLE_STROKE_SOLID: return "solid";
460 case TABLE_STROKE_DASHED: return "dashed";
461 case TABLE_STROKE_THICK: return "thick";
462 case TABLE_STROKE_THIN: return "thin";
463 case TABLE_STROKE_DOUBLE: return "double";
470 cell_color_dump (const struct cell_color *c)
473 printf ("rgba(%d, %d, %d, %d)", c->r, c->g, c->b, c->alpha);
475 printf ("#%02"PRIx8"%02"PRIx8"%02"PRIx8, c->r, c->g, c->b);
479 font_style_dump (const struct font_style *f)
481 printf ("%s %dpx ", f->typeface, f->size);
482 cell_color_dump (&f->fg[0]);
484 cell_color_dump (&f->bg[0]);
485 if (!cell_color_equal (&f->fg[0], &f->fg[1])
486 || !cell_color_equal (&f->bg[0], &f->bg[1]))
489 cell_color_dump (&f->fg[1]);
491 cell_color_dump (&f->bg[1]);
494 fputs (" bold", stdout);
496 fputs (" italic", stdout);
498 fputs (" underline", stdout);
502 cell_style_dump (const struct cell_style *c)
504 fputs (table_halign_to_string (c->halign), stdout);
505 if (c->halign == TABLE_HALIGN_DECIMAL)
506 printf ("(%.2gpx)", c->decimal_offset);
507 printf (" %s", table_valign_to_string (c->valign));
508 printf (" %d,%d,%d,%dpx",
509 c->margin[TABLE_HORZ][0], c->margin[TABLE_HORZ][1],
510 c->margin[TABLE_VERT][0], c->margin[TABLE_VERT][1]);