Pileus Git - ~andy/gtk/blob - gtk/gtktable.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library 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 GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include "gtktable.h"
  28 #include "gtkintl.h"
  29
  30 enum
  31 {
  32   PROP_0,
  33   PROP_N_ROWS,
  34   PROP_N_COLUMNS,
  35   PROP_COLUMN_SPACING,
  36   PROP_ROW_SPACING,
  37   PROP_HOMOGENEOUS
  38 };
  39
  40 enum
  41 {
  42   CHILD_PROP_0,
  43   CHILD_PROP_LEFT_ATTACH,
  44   CHILD_PROP_RIGHT_ATTACH,
  45   CHILD_PROP_TOP_ATTACH,
  46   CHILD_PROP_BOTTOM_ATTACH,
  47   CHILD_PROP_X_OPTIONS,
  48   CHILD_PROP_Y_OPTIONS,
  49   CHILD_PROP_X_PADDING,
  50   CHILD_PROP_Y_PADDING
  51 };
  52
  53
  54 static void gtk_table_class_init    (GtkTableClass  *klass);
  55 static void gtk_table_init          (GtkTable       *table);
  56 static void gtk_table_finalize      (GObject        *object);
  57 static void gtk_table_size_request  (GtkWidget      *widget,
  58                                      GtkRequisition *requisition);
  59 static void gtk_table_size_allocate (GtkWidget      *widget,
  60                                      GtkAllocation  *allocation);
  61 static void gtk_table_add           (GtkContainer   *container,
  62                                      GtkWidget      *widget);
  63 static void gtk_table_remove        (GtkContainer   *container,
  64                                      GtkWidget      *widget);
  65 static void gtk_table_forall        (GtkContainer   *container,
  66                                      gboolean        include_internals,
  67                                      GtkCallback     callback,
  68                                      gpointer        callback_data);
  69 static void gtk_table_get_property  (GObject         *object,
  70                                      guint            prop_id,
  71                                      GValue          *value,
  72                                      GParamSpec      *pspec);
  73 static void gtk_table_set_property  (GObject         *object,
  74                                      guint            prop_id,
  75                                      const GValue    *value,
  76                                      GParamSpec      *pspec);
  77 static void gtk_table_set_child_property (GtkContainer    *container,
  78                                           GtkWidget       *child,
  79                                           guint            property_id,
  80                                           const GValue    *value,
  81                                           GParamSpec      *pspec);
  82 static void gtk_table_get_child_property (GtkContainer    *container,
  83                                           GtkWidget       *child,
  84                                           guint            property_id,
  85                                           GValue          *value,
  86                                           GParamSpec      *pspec);
  87 static GtkType gtk_table_child_type (GtkContainer   *container);
  88
  89
  90 static void gtk_table_size_request_init  (GtkTable *table);
  91 static void gtk_table_size_request_pass1 (GtkTable *table);
  92 static void gtk_table_size_request_pass2 (GtkTable *table);
  93 static void gtk_table_size_request_pass3 (GtkTable *table);
  94
  95 static void gtk_table_size_allocate_init  (GtkTable *table);
  96 static void gtk_table_size_allocate_pass1 (GtkTable *table);
  97 static void gtk_table_size_allocate_pass2 (GtkTable *table);
  98
  99
 100 static GtkContainerClass *parent_class = NULL;
 101
 102
 103 GtkType
 104 gtk_table_get_type (void)
 105 {
 106   static GtkType table_type = 0;
 107
 108   if (!table_type)
 109     {
 110       static const GtkTypeInfo table_info =
 111       {
 112         "GtkTable",
 113         sizeof (GtkTable),
 114         sizeof (GtkTableClass),
 115         (GtkClassInitFunc) gtk_table_class_init,
 116         (GtkObjectInitFunc) gtk_table_init,
 117         /* reserved_1 */ NULL,
 118         /* reserved_2 */ NULL,
 119         (GtkClassInitFunc) NULL,
 120       };
 121
 122       table_type = gtk_type_unique (gtk_container_get_type (), &table_info);
 123     }
 124
 125   return table_type;
 126 }
 127
 128 static void
 129 gtk_table_class_init (GtkTableClass *class)
 130 {
 131   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 132   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
 133   GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
 134
 135   parent_class = g_type_class_peek_parent (class);
 136
 137   gobject_class->finalize = gtk_table_finalize;
 138
 139   gobject_class->get_property = gtk_table_get_property;
 140   gobject_class->set_property = gtk_table_set_property;
 141
 142   widget_class->size_request = gtk_table_size_request;
 143   widget_class->size_allocate = gtk_table_size_allocate;
 144
 145   container_class->add = gtk_table_add;
 146   container_class->remove = gtk_table_remove;
 147   container_class->forall = gtk_table_forall;
 148   container_class->child_type = gtk_table_child_type;
 149   container_class->set_child_property = gtk_table_set_child_property;
 150   container_class->get_child_property = gtk_table_get_child_property;
 151
 152
 153   g_object_class_install_property (gobject_class,
 154                                    PROP_N_ROWS,
 155                                    g_param_spec_uint ("n_rows",
 156                                                      _("Rows"),
 157                                                      _("The number of rows in the table"),
 158                                                      0,
 159                                                      G_MAXUINT,
 160                                                      0,
 161                                                      G_PARAM_READWRITE));
 162   g_object_class_install_property (gobject_class,
 163                                    PROP_N_COLUMNS,
 164                                    g_param_spec_uint ("n_columns",
 165                                                      _("Columns"),
 166                                                      _("The number of columns in the table"),
 167                                                      0,
 168                                                      G_MAXUINT,
 169                                                      0,
 170                                                      G_PARAM_READWRITE));
 171   g_object_class_install_property (gobject_class,
 172                                    PROP_ROW_SPACING,
 173                                    g_param_spec_uint ("row_spacing",
 174                                                      _("Row spacing"),
 175                                                      _("The amount of space between two consecutive rows"),
 176                                                      0,
 177                                                      G_MAXUINT,
 178                                                      0,
 179                                                      G_PARAM_READWRITE));
 180   g_object_class_install_property (gobject_class,
 181                                    PROP_COLUMN_SPACING,
 182                                    g_param_spec_uint ("column_spacing",
 183                                                      _("Column spacing"),
 184                                                      _("The amount of space between two consecutive columns"),
 185                                                      0,
 186                                                      G_MAXUINT,
 187                                                      0,
 188                                                      G_PARAM_READWRITE));
 189   g_object_class_install_property (gobject_class,
 190                                    PROP_HOMOGENEOUS,
 191                                    g_param_spec_boolean ("homogeneous",
 192                                                          _("Homogenous"),
 193                                                          _("If TRUE this means the table cells are all the same width/height"),
 194                                                          FALSE,
 195                                                          G_PARAM_READWRITE));
 196
 197   gtk_container_class_install_child_property (container_class,
 198                                               CHILD_PROP_LEFT_ATTACH,
 199                                               g_param_spec_uint ("left_attach",
 200                                                                  _("Left attachment"),
 201                                                                  _("The leftmost column of the child"),
 202                                                                  0, 65535, 0,
 203                                                                  G_PARAM_READWRITE));
 204   gtk_container_class_install_child_property (container_class,
 205                                               CHILD_PROP_RIGHT_ATTACH,
 206                                               g_param_spec_uint ("right_attach",
 207                                                                  _("Right attachment"),
 208                                                                  _("The rightmost column of the child"),
 209                                                                  1, 65535, 1,
 210                                                                  G_PARAM_READWRITE));
 211   gtk_container_class_install_child_property (container_class,
 212                                               CHILD_PROP_TOP_ATTACH,
 213                                               g_param_spec_uint ("top_attach",
 214                                                                  _("Top attachment"),
 215                                                                  _("The uppermost row of the child"),
 216                                                                  0, 65535, 0,
 217                                                                  G_PARAM_READWRITE));
 218   gtk_container_class_install_child_property (container_class,
 219                                               CHILD_PROP_BOTTOM_ATTACH,
 220                                               g_param_spec_uint ("bottom_attach",
 221                                                                  _("Bottom attachment"),
 222                                                                  _("The lowest row of the child"),
 223                                                                  1, 65535, 1,
 224                                                                  G_PARAM_READWRITE));
 225   gtk_container_class_install_child_property (container_class,
 226                                               CHILD_PROP_X_OPTIONS,
 227                                               g_param_spec_flags ("x_options",
 228                                                                   _("Horizontal options"),
 229                                                                   _("Options specifying the horizontal behaviour of the child"),
 230                                                                   GTK_TYPE_ATTACH_OPTIONS, GTK_EXPAND | GTK_FILL,
 231                                                                   G_PARAM_READWRITE));
 232   gtk_container_class_install_child_property (container_class,
 233                                               CHILD_PROP_Y_OPTIONS,
 234                                               g_param_spec_flags ("y_options",
 235                                                                   _("Vertical options"),
 236                                                                   _("Options specifying the vertical behaviour of the child"),
 237                                                                   GTK_TYPE_ATTACH_OPTIONS, GTK_EXPAND | GTK_FILL,
 238                                                                   G_PARAM_READWRITE));
 239   gtk_container_class_install_child_property (container_class,
 240                                               CHILD_PROP_X_PADDING,
 241                                               g_param_spec_uint ("x_padding",
 242                                                                  _("Horizontal padding"),
 243                                                                  _("Extra space to put between the child and its left and right neighbors, in pixels"),
 244                                                                  0, 65535, 0,
 245                                                                  G_PARAM_READWRITE));
 246   gtk_container_class_install_child_property (container_class,
 247                                               CHILD_PROP_Y_PADDING,
 248                                               g_param_spec_uint ("y_padding",
 249                                                                  _("Vertical padding"),
 250                                                                  _("Extra space to put between the child and its upper and lower neighbors, in pixels"),
 251                                                                  0, 65535, 0,
 252                                                                  G_PARAM_READWRITE));
 253 }
 254
 255 static GtkType
 256 gtk_table_child_type (GtkContainer   *container)
 257 {
 258   return GTK_TYPE_WIDGET;
 259 }
 260
 261 static void
 262 gtk_table_get_property (GObject      *object,
 263                         guint         prop_id,
 264                         GValue       *value,
 265                         GParamSpec   *pspec)
 266 {
 267   GtkTable *table;
 268
 269   table = GTK_TABLE (object);
 270
 271   switch (prop_id)
 272     {
 273     case PROP_N_ROWS:
 274       g_value_set_uint (value, table->nrows);
 275       break;
 276     case PROP_N_COLUMNS:
 277       g_value_set_uint (value, table->ncols);
 278       break;
 279     case PROP_ROW_SPACING:
 280       g_value_set_uint (value, table->row_spacing);
 281       break;
 282     case PROP_COLUMN_SPACING:
 283       g_value_set_uint (value, table->column_spacing);
 284       break;
 285     case PROP_HOMOGENEOUS:
 286       g_value_set_boolean (value, table->homogeneous);
 287       break;
 288     default:
 289       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 290       break;
 291     }
 292 }
 293
 294 static void
 295 gtk_table_set_property (GObject      *object,
 296                         guint         prop_id,
 297                         const GValue *value,
 298                         GParamSpec   *pspec)
 299 {
 300   GtkTable *table;
 301
 302   table = GTK_TABLE (object);
 303
 304   switch (prop_id)
 305     {
 306     case PROP_N_ROWS:
 307       gtk_table_resize (table, g_value_get_uint (value), table->ncols);
 308       break;
 309     case PROP_N_COLUMNS:
 310       gtk_table_resize (table, table->nrows, g_value_get_uint (value));
 311       break;
 312     case PROP_ROW_SPACING:
 313       gtk_table_set_row_spacings (table, g_value_get_uint (value));
 314       break;
 315     case PROP_COLUMN_SPACING:
 316       gtk_table_set_col_spacings (table, g_value_get_uint (value));
 317       break;
 318     case PROP_HOMOGENEOUS:
 319       gtk_table_set_homogeneous (table, g_value_get_boolean (value));
 320       break;
 321     default:
 322       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 323       break;
 324     }
 325 }
 326
 327 static void
 328 gtk_table_set_child_property (GtkContainer    *container,
 329                               GtkWidget       *child,
 330                               guint            property_id,
 331                               const GValue    *value,
 332                               GParamSpec      *pspec)
 333 {
 334   GtkTable *table = GTK_TABLE (container);
 335   GtkTableChild *table_child;
 336   GList *list;
 337
 338   table_child = NULL;
 339   for (list = table->children; list; list = list->next)
 340     {
 341       table_child = list->data;
 342
 343       if (table_child->widget == child)
 344         break;
 345     }
 346   if (!list)
 347     {
 348       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 349       return;
 350     }
 351
 352   switch (property_id)
 353     {
 354     case CHILD_PROP_LEFT_ATTACH:
 355       table_child->left_attach = g_value_get_uint (value);
 356       if (table_child->right_attach <= table_child->left_attach)
 357         table_child->right_attach = table_child->left_attach + 1;
 358       if (table_child->right_attach >= table->ncols)
 359         gtk_table_resize (table, table->nrows, table_child->right_attach);
 360       break;
 361     case CHILD_PROP_RIGHT_ATTACH:
 362       table_child->right_attach = g_value_get_uint (value);
 363       if (table_child->right_attach <= table_child->left_attach)
 364         table_child->left_attach = table_child->right_attach - 1;
 365       if (table_child->right_attach >= table->ncols)
 366         gtk_table_resize (table, table->nrows, table_child->right_attach);
 367       break;
 368     case CHILD_PROP_TOP_ATTACH:
 369       table_child->top_attach = g_value_get_uint (value);
 370       if (table_child->bottom_attach <= table_child->top_attach)
 371         table_child->bottom_attach = table_child->top_attach + 1;
 372       if (table_child->bottom_attach >= table->nrows)
 373         gtk_table_resize (table, table_child->bottom_attach, table->ncols);
 374       break;
 375     case CHILD_PROP_BOTTOM_ATTACH:
 376       table_child->bottom_attach = g_value_get_uint (value);
 377       if (table_child->bottom_attach <= table_child->top_attach)
 378         table_child->top_attach = table_child->bottom_attach - 1;
 379       if (table_child->bottom_attach >= table->nrows)
 380         gtk_table_resize (table, table_child->bottom_attach, table->ncols);
 381       break;
 382     case CHILD_PROP_X_OPTIONS:
 383       table_child->xexpand = (g_value_get_flags (value) & GTK_EXPAND) != 0;
 384       table_child->xshrink = (g_value_get_flags (value) & GTK_SHRINK) != 0;
 385       table_child->xfill = (g_value_get_flags (value) & GTK_FILL) != 0;
 386       break;
 387     case CHILD_PROP_Y_OPTIONS:
 388       table_child->yexpand = (g_value_get_flags (value) & GTK_EXPAND) != 0;
 389       table_child->yshrink = (g_value_get_flags (value) & GTK_SHRINK) != 0;
 390       table_child->yfill = (g_value_get_flags (value) & GTK_FILL) != 0;
 391       break;
 392     case CHILD_PROP_X_PADDING:
 393       table_child->xpadding = g_value_get_uint (value);
 394       break;
 395     case CHILD_PROP_Y_PADDING:
 396       table_child->ypadding = g_value_get_uint (value);
 397       break;
 398     default:
 399       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 400       break;
 401     }
 402   if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (table))
 403     gtk_widget_queue_resize (child);
 404 }
 405
 406 static void
 407 gtk_table_get_child_property (GtkContainer    *container,
 408                               GtkWidget       *child,
 409                               guint            property_id,
 410                               GValue          *value,
 411                               GParamSpec      *pspec)
 412 {
 413   GtkTable *table = GTK_TABLE (container);
 414   GtkTableChild *table_child;
 415   GList *list;
 416
 417   table_child = NULL;
 418   for (list = table->children; list; list = list->next)
 419     {
 420       table_child = list->data;
 421
 422       if (table_child->widget == child)
 423         break;
 424     }
 425   if (!list)
 426     {
 427       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 428       return;
 429     }
 430
 431   switch (property_id)
 432     {
 433     case CHILD_PROP_LEFT_ATTACH:
 434       g_value_set_uint (value, table_child->left_attach);
 435       break;
 436     case CHILD_PROP_RIGHT_ATTACH:
 437       g_value_set_uint (value, table_child->right_attach);
 438       break;
 439     case CHILD_PROP_TOP_ATTACH:
 440       g_value_set_uint (value, table_child->top_attach);
 441       break;
 442     case CHILD_PROP_BOTTOM_ATTACH:
 443       g_value_set_uint (value, table_child->bottom_attach);
 444       break;
 445     case CHILD_PROP_X_OPTIONS:
 446       g_value_set_flags (value, (table_child->xexpand * GTK_EXPAND |
 447                                  table_child->xshrink * GTK_SHRINK |
 448                                  table_child->xfill * GTK_FILL));
 449       break;
 450     case CHILD_PROP_Y_OPTIONS:
 451       g_value_set_flags (value, (table_child->yexpand * GTK_EXPAND |
 452                                  table_child->yshrink * GTK_SHRINK |
 453                                  table_child->yfill * GTK_FILL));
 454       break;
 455     case CHILD_PROP_X_PADDING:
 456       g_value_set_uint (value, table_child->xpadding);
 457       break;
 458     case CHILD_PROP_Y_PADDING:
 459       g_value_set_uint (value, table_child->ypadding);
 460       break;
 461     default:
 462       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 463       break;
 464     }
 465 }
 466
 467 static void
 468 gtk_table_init (GtkTable *table)
 469 {
 470   GTK_WIDGET_SET_FLAGS (table, GTK_NO_WINDOW);
 471   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (table), FALSE);
 472
 473   table->children = NULL;
 474   table->rows = NULL;
 475   table->cols = NULL;
 476   table->nrows = 0;
 477   table->ncols = 0;
 478   table->column_spacing = 0;
 479   table->row_spacing = 0;
 480   table->homogeneous = FALSE;
 481
 482   gtk_table_resize (table, 1, 1);
 483 }
 484
 485 GtkWidget*
 486 gtk_table_new (guint    rows,
 487                guint    columns,
 488                gboolean homogeneous)
 489 {
 490   GtkTable *table;
 491
 492   if (rows == 0)
 493           rows = 1;
 494   if (columns == 0)
 495           columns = 1;
 496
 497   table = gtk_type_new (gtk_table_get_type ());
 498
 499   table->homogeneous = (homogeneous ? TRUE : FALSE);
 500
 501   gtk_table_resize (table, rows, columns);
 502
 503   return GTK_WIDGET (table);
 504 }
 505
 506 void
 507 gtk_table_resize (GtkTable *table,
 508                   guint     n_rows,
 509                   guint     n_cols)
 510 {
 511   g_return_if_fail (GTK_IS_TABLE (table));
 512   g_return_if_fail (n_rows > 0 && n_rows < 65536);
 513   g_return_if_fail (n_rows > 0 && n_cols < 65536);
 514
 515   n_rows = MAX (n_rows, 1);
 516   n_cols = MAX (n_cols, 1);
 517
 518   if (n_rows != table->nrows ||
 519       n_cols != table->ncols)
 520     {
 521       GList *list;
 522
 523       for (list = table->children; list; list = list->next)
 524         {
 525           GtkTableChild *child;
 526
 527           child = list->data;
 528
 529           n_rows = MAX (n_rows, child->bottom_attach);
 530           n_cols = MAX (n_cols, child->right_attach);
 531         }
 532
 533       if (n_rows != table->nrows)
 534         {
 535           guint i;
 536
 537           i = table->nrows;
 538           table->nrows = n_rows;
 539           table->rows = g_realloc (table->rows, table->nrows * sizeof (GtkTableRowCol));
 540
 541           for (; i < table->nrows; i++)
 542             {
 543               table->rows[i].requisition = 0;
 544               table->rows[i].allocation = 0;
 545               table->rows[i].spacing = table->row_spacing;
 546               table->rows[i].need_expand = 0;
 547               table->rows[i].need_shrink = 0;
 548               table->rows[i].expand = 0;
 549               table->rows[i].shrink = 0;
 550             }
 551
 552           g_object_notify (G_OBJECT (table), "n_rows");
 553         }
 554
 555       if (n_cols != table->ncols)
 556         {
 557           guint i;
 558
 559           i = table->ncols;
 560           table->ncols = n_cols;
 561           table->cols = g_realloc (table->cols, table->ncols * sizeof (GtkTableRowCol));
 562
 563           for (; i < table->ncols; i++)
 564             {
 565               table->cols[i].requisition = 0;
 566               table->cols[i].allocation = 0;
 567               table->cols[i].spacing = table->column_spacing;
 568               table->cols[i].need_expand = 0;
 569               table->cols[i].need_shrink = 0;
 570               table->cols[i].expand = 0;
 571               table->cols[i].shrink = 0;
 572             }
 573
 574           g_object_notify (G_OBJECT (table), "n_columns");
 575         }
 576     }
 577 }
 578
 579 void
 580 gtk_table_attach (GtkTable        *table,
 581                   GtkWidget       *child,
 582                   guint            left_attach,
 583                   guint            right_attach,
 584                   guint            top_attach,
 585                   guint            bottom_attach,
 586                   GtkAttachOptions xoptions,
 587                   GtkAttachOptions yoptions,
 588                   guint            xpadding,
 589                   guint            ypadding)
 590 {
 591   GtkTableChild *table_child;
 592
 593   g_return_if_fail (GTK_IS_TABLE (table));
 594   g_return_if_fail (GTK_IS_WIDGET (child));
 595   g_return_if_fail (child->parent == NULL);
 596
 597   /* g_return_if_fail (left_attach >= 0); */
 598   g_return_if_fail (left_attach < right_attach);
 599   /* g_return_if_fail (top_attach >= 0); */
 600   g_return_if_fail (top_attach < bottom_attach);
 601
 602   if (right_attach >= table->ncols)
 603     gtk_table_resize (table, table->nrows, right_attach);
 604
 605   if (bottom_attach >= table->nrows)
 606     gtk_table_resize (table, bottom_attach, table->ncols);
 607
 608   table_child = g_new (GtkTableChild, 1);
 609   table_child->widget = child;
 610   table_child->left_attach = left_attach;
 611   table_child->right_attach = right_attach;
 612   table_child->top_attach = top_attach;
 613   table_child->bottom_attach = bottom_attach;
 614   table_child->xexpand = (xoptions & GTK_EXPAND) != 0;
 615   table_child->xshrink = (xoptions & GTK_SHRINK) != 0;
 616   table_child->xfill = (xoptions & GTK_FILL) != 0;
 617   table_child->xpadding = xpadding;
 618   table_child->yexpand = (yoptions & GTK_EXPAND) != 0;
 619   table_child->yshrink = (yoptions & GTK_SHRINK) != 0;
 620   table_child->yfill = (yoptions & GTK_FILL) != 0;
 621   table_child->ypadding = ypadding;
 622
 623   table->children = g_list_prepend (table->children, table_child);
 624
 625   gtk_widget_set_parent (child, GTK_WIDGET (table));
 626 }
 627
 628 void
 629 gtk_table_attach_defaults (GtkTable  *table,
 630                            GtkWidget *widget,
 631                            guint      left_attach,
 632                            guint      right_attach,
 633                            guint      top_attach,
 634                            guint      bottom_attach)
 635 {
 636   gtk_table_attach (table, widget,
 637                     left_attach, right_attach,
 638                     top_attach, bottom_attach,
 639                     GTK_EXPAND | GTK_FILL,
 640                     GTK_EXPAND | GTK_FILL,
 641                     0, 0);
 642 }
 643
 644 void
 645 gtk_table_set_row_spacing (GtkTable *table,
 646                            guint     row,
 647                            guint     spacing)
 648 {
 649   g_return_if_fail (GTK_IS_TABLE (table));
 650   g_return_if_fail (row < table->nrows);
 651
 652   if (table->rows[row].spacing != spacing)
 653     {
 654       table->rows[row].spacing = spacing;
 655
 656       if (GTK_WIDGET_VISIBLE (table))
 657         gtk_widget_queue_resize (GTK_WIDGET (table));
 658     }
 659 }
 660
 661 /**
 662  * gtk_table_get_row_spacing:
 663  * @table: a #GtkTable
 664  * @row: a row in the table, 0 indicates the first row
 665  *
 666  * Gets the amount of space between row @row, and
 667  * row @row + 1. See gtk_table_set_row_spacing().
 668  *
 669  * Return value: the row spacing
 670  **/
 671 guint
 672 gtk_table_get_row_spacing (GtkTable *table,
 673                            guint     row)
 674 {
 675   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 676   g_return_val_if_fail (row < table->nrows - 1, 0);
 677
 678   return table->rows[row].spacing;
 679 }
 680
 681 void
 682 gtk_table_set_col_spacing (GtkTable *table,
 683                            guint     column,
 684                            guint     spacing)
 685 {
 686   g_return_if_fail (GTK_IS_TABLE (table));
 687   g_return_if_fail (column < table->ncols);
 688
 689   if (table->cols[column].spacing != spacing)
 690     {
 691       table->cols[column].spacing = spacing;
 692
 693       if (GTK_WIDGET_VISIBLE (table))
 694         gtk_widget_queue_resize (GTK_WIDGET (table));
 695     }
 696 }
 697
 698 /**
 699  * gtk_table_get_col_spacing:
 700  * @table: a #GtkTable
 701  * @column: a column in the table, 0 indicates the first column
 702  *
 703  * Gets the amount of space between column @col, and
 704  * column @col + 1. See gtk_table_set_col_spacing().
 705  *
 706  * Return value: the column spacing
 707  **/
 708 guint
 709 gtk_table_get_col_spacing (GtkTable *table,
 710                            guint     column)
 711 {
 712   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 713   g_return_val_if_fail (column < table->ncols, 0);
 714
 715   return table->cols[column].spacing;
 716 }
 717
 718 void
 719 gtk_table_set_row_spacings (GtkTable *table,
 720                             guint     spacing)
 721 {
 722   guint row;
 723
 724   g_return_if_fail (GTK_IS_TABLE (table));
 725
 726   table->row_spacing = spacing;
 727   for (row = 0; row < table->nrows; row++)
 728     table->rows[row].spacing = spacing;
 729
 730   if (GTK_WIDGET_VISIBLE (table))
 731     gtk_widget_queue_resize (GTK_WIDGET (table));
 732
 733   g_object_notify (G_OBJECT (table), "row_spacing");
 734 }
 735
 736 /**
 737  * gtk_table_get_default_row_spacing:
 738  * @table: a #GtkTable
 739  *
 740  * Gets the default row spacing for the table. This is
 741  * the spacing that will be used for newly added rows.
 742  * (See gtk_table_set_row_spacings())
 743  *
 744  * Returns value: the default row spacing
 745  **/
 746 guint
 747 gtk_table_get_default_row_spacing (GtkTable *table)
 748 {
 749   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 750
 751   return table->row_spacing;
 752 }
 753
 754 void
 755 gtk_table_set_col_spacings (GtkTable *table,
 756                             guint     spacing)
 757 {
 758   guint col;
 759
 760   g_return_if_fail (GTK_IS_TABLE (table));
 761
 762   table->column_spacing = spacing;
 763   for (col = 0; col < table->ncols; col++)
 764     table->cols[col].spacing = spacing;
 765
 766   if (GTK_WIDGET_VISIBLE (table))
 767     gtk_widget_queue_resize (GTK_WIDGET (table));
 768
 769   g_object_notify (G_OBJECT (table), "column_spacing");
 770 }
 771
 772 /**
 773  * gtk_table_get_default_col_spacing:
 774  * @table: a #GtkTable
 775  *
 776  * Gets the default column spacing for the table. This is
 777  * the spacing that will be used for newly added columns.
 778  * (See gtk_table_set_col_spacings())
 779  *
 780  * Returns value: the default column spacing
 781  **/
 782 guint
 783 gtk_table_get_default_col_spacing (GtkTable *table)
 784 {
 785   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 786
 787   return table->column_spacing;
 788 }
 789
 790 void
 791 gtk_table_set_homogeneous (GtkTable *table,
 792                            gboolean  homogeneous)
 793 {
 794   g_return_if_fail (GTK_IS_TABLE (table));
 795
 796   homogeneous = (homogeneous != 0);
 797   if (homogeneous != table->homogeneous)
 798     {
 799       table->homogeneous = homogeneous;
 800
 801       if (GTK_WIDGET_VISIBLE (table))
 802         gtk_widget_queue_resize (GTK_WIDGET (table));
 803
 804       g_object_notify (G_OBJECT (table), "homogeneous");
 805     }
 806 }
 807
 808 /**
 809  * gtk_table_get_homogeneous:
 810  * @table: a #GtkTable
 811  *
 812  * Returns whether the table cells are all constrained to the same
 813  * width and height. (See gtk_table_set_homogenous ())
 814  *
 815  * Return value: %TRUE if the cells are all constrained to the same size
 816  **/
 817 gboolean
 818 gtk_table_get_homogeneous (GtkTable *table)
 819 {
 820   g_return_val_if_fail (GTK_IS_TABLE (table), FALSE);
 821
 822   return table->homogeneous;
 823 }
 824
 825 static void
 826 gtk_table_finalize (GObject *object)
 827 {
 828   GtkTable *table;
 829
 830   g_return_if_fail (GTK_IS_TABLE (object));
 831
 832   table = GTK_TABLE (object);
 833
 834   g_free (table->rows);
 835   g_free (table->cols);
 836
 837   G_OBJECT_CLASS (parent_class)->finalize (object);
 838 }
 839
 840 static void
 841 gtk_table_size_request (GtkWidget      *widget,
 842                         GtkRequisition *requisition)
 843 {
 844   GtkTable *table;
 845   gint row, col;
 846
 847   g_return_if_fail (GTK_IS_TABLE (widget));
 848   g_return_if_fail (requisition != NULL);
 849
 850   table = GTK_TABLE (widget);
 851
 852   requisition->width = 0;
 853   requisition->height = 0;
 854
 855   gtk_table_size_request_init (table);
 856   gtk_table_size_request_pass1 (table);
 857   gtk_table_size_request_pass2 (table);
 858   gtk_table_size_request_pass3 (table);
 859   gtk_table_size_request_pass2 (table);
 860
 861   for (col = 0; col < table->ncols; col++)
 862     requisition->width += table->cols[col].requisition;
 863   for (col = 0; col + 1 < table->ncols; col++)
 864     requisition->width += table->cols[col].spacing;
 865
 866   for (row = 0; row < table->nrows; row++)
 867     requisition->height += table->rows[row].requisition;
 868   for (row = 0; row + 1 < table->nrows; row++)
 869     requisition->height += table->rows[row].spacing;
 870
 871   requisition->width += GTK_CONTAINER (table)->border_width * 2;
 872   requisition->height += GTK_CONTAINER (table)->border_width * 2;
 873 }
 874
 875 static void
 876 gtk_table_size_allocate (GtkWidget     *widget,
 877                          GtkAllocation *allocation)
 878 {
 879   GtkTable *table;
 880
 881   g_return_if_fail (GTK_IS_TABLE (widget));
 882   g_return_if_fail (allocation != NULL);
 883
 884   widget->allocation = *allocation;
 885   table = GTK_TABLE (widget);
 886
 887   gtk_table_size_allocate_init (table);
 888   gtk_table_size_allocate_pass1 (table);
 889   gtk_table_size_allocate_pass2 (table);
 890 }
 891
 892 static void
 893 gtk_table_add (GtkContainer *container,
 894                GtkWidget    *widget)
 895 {
 896   g_return_if_fail (GTK_IS_TABLE (container));
 897   g_return_if_fail (widget != NULL);
 898
 899   gtk_table_attach_defaults (GTK_TABLE (container), widget, 0, 1, 0, 1);
 900 }
 901
 902 static void
 903 gtk_table_remove (GtkContainer *container,
 904                   GtkWidget    *widget)
 905 {
 906   GtkTable *table;
 907   GtkTableChild *child;
 908   GList *children;
 909
 910   g_return_if_fail (GTK_IS_TABLE (container));
 911   g_return_if_fail (widget != NULL);
 912
 913   table = GTK_TABLE (container);
 914   children = table->children;
 915
 916   while (children)
 917     {
 918       child = children->data;
 919       children = children->next;
 920
 921       if (child->widget == widget)
 922         {
 923           gboolean was_visible = GTK_WIDGET_VISIBLE (widget);
 924
 925           gtk_widget_unparent (widget);
 926
 927           table->children = g_list_remove (table->children, child);
 928           g_free (child);
 929
 930           if (was_visible && GTK_WIDGET_VISIBLE (container))
 931             gtk_widget_queue_resize (GTK_WIDGET (container));
 932           break;
 933         }
 934     }
 935 }
 936
 937 static void
 938 gtk_table_forall (GtkContainer *container,
 939                   gboolean      include_internals,
 940                   GtkCallback   callback,
 941                   gpointer      callback_data)
 942 {
 943   GtkTable *table;
 944   GtkTableChild *child;
 945   GList *children;
 946
 947   g_return_if_fail (GTK_IS_TABLE (container));
 948   g_return_if_fail (callback != NULL);
 949
 950   table = GTK_TABLE (container);
 951   children = table->children;
 952
 953   while (children)
 954     {
 955       child = children->data;
 956       children = children->next;
 957
 958       (* callback) (child->widget, callback_data);
 959     }
 960 }
 961
 962 static void
 963 gtk_table_size_request_init (GtkTable *table)
 964 {
 965   GtkTableChild *child;
 966   GList *children;
 967   gint row, col;
 968
 969   for (row = 0; row < table->nrows; row++)
 970     {
 971       table->rows[row].requisition = 0;
 972       table->rows[row].expand = FALSE;
 973     }
 974   for (col = 0; col < table->ncols; col++)
 975     {
 976       table->cols[col].requisition = 0;
 977       table->cols[col].expand = FALSE;
 978     }
 979
 980   children = table->children;
 981   while (children)
 982     {
 983       child = children->data;
 984       children = children->next;
 985
 986       if (GTK_WIDGET_VISIBLE (child->widget))
 987         gtk_widget_size_request (child->widget, NULL);
 988
 989       if (child->left_attach == (child->right_attach - 1) && child->xexpand)
 990         table->cols[child->left_attach].expand = TRUE;
 991
 992       if (child->top_attach == (child->bottom_attach - 1) && child->yexpand)
 993         table->rows[child->top_attach].expand = TRUE;
 994     }
 995 }
 996
 997 static void
 998 gtk_table_size_request_pass1 (GtkTable *table)
 999 {
1000   GtkTableChild *child;
1001   GList *children;
1002   gint width;
1003   gint height;
1004
1005   children = table->children;
1006   while (children)
1007     {
1008       child = children->data;
1009       children = children->next;
1010
1011       if (GTK_WIDGET_VISIBLE (child->widget))
1012         {
1013           GtkRequisition child_requisition;
1014           gtk_widget_get_child_requisition (child->widget, &child_requisition);
1015
1016           /* Child spans a single column.
1017            */
1018           if (child->left_attach == (child->right_attach - 1))
1019             {
1020               width = child_requisition.width + child->xpadding * 2;
1021               table->cols[child->left_attach].requisition = MAX (table->cols[child->left_attach].requisition, width);
1022             }
1023
1024           /* Child spans a single row.
1025            */
1026           if (child->top_attach == (child->bottom_attach - 1))
1027             {
1028               height = child_requisition.height + child->ypadding * 2;
1029               table->rows[child->top_attach].requisition = MAX (table->rows[child->top_attach].requisition, height);
1030             }
1031         }
1032     }
1033 }
1034
1035 static void
1036 gtk_table_size_request_pass2 (GtkTable *table)
1037 {
1038   gint max_width;
1039   gint max_height;
1040   gint row, col;
1041
1042   if (table->homogeneous)
1043     {
1044       max_width = 0;
1045       max_height = 0;
1046
1047       for (col = 0; col < table->ncols; col++)
1048         max_width = MAX (max_width, table->cols[col].requisition);
1049       for (row = 0; row < table->nrows; row++)
1050         max_height = MAX (max_height, table->rows[row].requisition);
1051
1052       for (col = 0; col < table->ncols; col++)
1053         table->cols[col].requisition = max_width;
1054       for (row = 0; row < table->nrows; row++)
1055         table->rows[row].requisition = max_height;
1056     }
1057 }
1058
1059 static void
1060 gtk_table_size_request_pass3 (GtkTable *table)
1061 {
1062   GtkTableChild *child;
1063   GList *children;
1064   gint width, height;
1065   gint row, col;
1066   gint extra;
1067
1068   children = table->children;
1069   while (children)
1070     {
1071       child = children->data;
1072       children = children->next;
1073
1074       if (GTK_WIDGET_VISIBLE (child->widget))
1075         {
1076           /* Child spans multiple columns.
1077            */
1078           if (child->left_attach != (child->right_attach - 1))
1079             {
1080               GtkRequisition child_requisition;
1081
1082               gtk_widget_get_child_requisition (child->widget, &child_requisition);
1083
1084               /* Check and see if there is already enough space
1085                *  for the child.
1086                */
1087               width = 0;
1088               for (col = child->left_attach; col < child->right_attach; col++)
1089                 {
1090                   width += table->cols[col].requisition;
1091                   if ((col + 1) < child->right_attach)
1092                     width += table->cols[col].spacing;
1093                 }
1094
1095               /* If we need to request more space for this child to fill
1096                *  its requisition, then divide up the needed space amongst the
1097                *  columns it spans, favoring expandable columns if any.
1098                */
1099               if (width < child_requisition.width + child->xpadding * 2)
1100                 {
1101                   gint n_expand = 0;
1102                   gboolean force_expand = FALSE;
1103
1104                   width = child_requisition.width + child->xpadding * 2 - width;
1105
1106                   for (col = child->left_attach; col < child->right_attach; col++)
1107                     if (table->cols[col].expand)
1108                       n_expand++;
1109
1110                   if (n_expand == 0)
1111                     {
1112                       n_expand = (child->right_attach - child->left_attach);
1113                       force_expand = TRUE;
1114                     }
1115
1116                   for (col = child->left_attach; col < child->right_attach; col++)
1117                     if (force_expand || table->cols[col].expand)
1118                       {
1119                         extra = width / n_expand;
1120                         table->cols[col].requisition += extra;
1121                         width -= extra;
1122                         n_expand--;
1123                       }
1124                 }
1125             }
1126
1127           /* Child spans multiple rows.
1128            */
1129           if (child->top_attach != (child->bottom_attach - 1))
1130             {
1131               GtkRequisition child_requisition;
1132
1133               gtk_widget_get_child_requisition (child->widget, &child_requisition);
1134
1135               /* Check and see if there is already enough space
1136                *  for the child.
1137                */
1138               height = 0;
1139               for (row = child->top_attach; row < child->bottom_attach; row++)
1140                 {
1141                   height += table->rows[row].requisition;
1142                   if ((row + 1) < child->bottom_attach)
1143                     height += table->rows[row].spacing;
1144                 }
1145
1146               /* If we need to request more space for this child to fill
1147                *  its requisition, then divide up the needed space amongst the
1148                *  rows it spans, favoring expandable rows if any.
1149                */
1150               if (height < child_requisition.height + child->ypadding * 2)
1151                 {
1152                   gint n_expand = 0;
1153                   gboolean force_expand = FALSE;
1154
1155                   height = child_requisition.height + child->ypadding * 2 - height;
1156
1157                   for (row = child->top_attach; row < child->bottom_attach; row++)
1158                     {
1159                       if (table->rows[row].expand)
1160                         n_expand++;
1161                     }
1162
1163                   if (n_expand == 0)
1164                     {
1165                       n_expand = (child->bottom_attach - child->top_attach);
1166                       force_expand = TRUE;
1167                     }
1168
1169                   for (row = child->top_attach; row < child->bottom_attach; row++)
1170                     if (force_expand || table->rows[row].expand)
1171                       {
1172                         extra = height / n_expand;
1173                         table->rows[row].requisition += extra;
1174                         height -= extra;
1175                         n_expand--;
1176                       }
1177                 }
1178             }
1179         }
1180     }
1181 }
1182
1183 static void
1184 gtk_table_size_allocate_init (GtkTable *table)
1185 {
1186   GtkTableChild *child;
1187   GList *children;
1188   gint row, col;
1189   gint has_expand;
1190   gint has_shrink;
1191
1192   /* Initialize the rows and cols.
1193    *  By default, rows and cols do not expand and do shrink.
1194    *  Those values are modified by the children that occupy
1195    *  the rows and cols.
1196    */
1197   for (col = 0; col < table->ncols; col++)
1198     {
1199       table->cols[col].allocation = table->cols[col].requisition;
1200       table->cols[col].need_expand = FALSE;
1201       table->cols[col].need_shrink = TRUE;
1202       table->cols[col].expand = FALSE;
1203       table->cols[col].shrink = TRUE;
1204       table->cols[col].empty = TRUE;
1205     }
1206   for (row = 0; row < table->nrows; row++)
1207     {
1208       table->rows[row].allocation = table->rows[row].requisition;
1209       table->rows[row].need_expand = FALSE;
1210       table->rows[row].need_shrink = TRUE;
1211       table->rows[row].expand = FALSE;
1212       table->rows[row].shrink = TRUE;
1213       table->rows[row].empty = TRUE;
1214     }
1215
1216   /* Loop over all the children and adjust the row and col values
1217    *  based on whether the children want to be allowed to expand
1218    *  or shrink. This loop handles children that occupy a single
1219    *  row or column.
1220    */
1221   children = table->children;
1222   while (children)
1223     {
1224       child = children->data;
1225       children = children->next;
1226
1227       if (GTK_WIDGET_VISIBLE (child->widget))
1228         {
1229           if (child->left_attach == (child->right_attach - 1))
1230             {
1231               if (child->xexpand)
1232                 table->cols[child->left_attach].expand = TRUE;
1233
1234               if (!child->xshrink)
1235                 table->cols[child->left_attach].shrink = FALSE;
1236
1237               table->cols[child->left_attach].empty = FALSE;
1238             }
1239
1240           if (child->top_attach == (child->bottom_attach - 1))
1241             {
1242               if (child->yexpand)
1243                 table->rows[child->top_attach].expand = TRUE;
1244
1245               if (!child->yshrink)
1246                 table->rows[child->top_attach].shrink = FALSE;
1247
1248               table->rows[child->top_attach].empty = FALSE;
1249             }
1250         }
1251     }
1252
1253   /* Loop over all the children again and this time handle children
1254    *  which span multiple rows or columns.
1255    */
1256   children = table->children;
1257   while (children)
1258     {
1259       child = children->data;
1260       children = children->next;
1261
1262       if (GTK_WIDGET_VISIBLE (child->widget))
1263         {
1264           if (child->left_attach != (child->right_attach - 1))
1265             {
1266               for (col = child->left_attach; col < child->right_attach; col++)
1267                 table->cols[col].empty = FALSE;
1268
1269               if (child->xexpand)
1270                 {
1271                   has_expand = FALSE;
1272                   for (col = child->left_attach; col < child->right_attach; col++)
1273                     if (table->cols[col].expand)
1274                       {
1275                         has_expand = TRUE;
1276                         break;
1277                       }
1278
1279                   if (!has_expand)
1280                     for (col = child->left_attach; col < child->right_attach; col++)
1281                       table->cols[col].need_expand = TRUE;
1282                 }
1283
1284               if (!child->xshrink)
1285                 {
1286                   has_shrink = TRUE;
1287                   for (col = child->left_attach; col < child->right_attach; col++)
1288                     if (!table->cols[col].shrink)
1289                       {
1290                         has_shrink = FALSE;
1291                         break;
1292                       }
1293
1294                   if (has_shrink)
1295                     for (col = child->left_attach; col < child->right_attach; col++)
1296                       table->cols[col].need_shrink = FALSE;
1297                 }
1298             }
1299
1300           if (child->top_attach != (child->bottom_attach - 1))
1301             {
1302               for (row = child->top_attach; row < child->bottom_attach; row++)
1303                 table->rows[row].empty = FALSE;
1304
1305               if (child->yexpand)
1306                 {
1307                   has_expand = FALSE;
1308                   for (row = child->top_attach; row < child->bottom_attach; row++)
1309                     if (table->rows[row].expand)
1310                       {
1311                         has_expand = TRUE;
1312                         break;
1313                       }
1314
1315                   if (!has_expand)
1316                     for (row = child->top_attach; row < child->bottom_attach; row++)
1317                       table->rows[row].need_expand = TRUE;
1318                 }
1319
1320               if (!child->yshrink)
1321                 {
1322                   has_shrink = TRUE;
1323                   for (row = child->top_attach; row < child->bottom_attach; row++)
1324                     if (!table->rows[row].shrink)
1325                       {
1326                         has_shrink = FALSE;
1327                         break;
1328                       }
1329
1330                   if (has_shrink)
1331                     for (row = child->top_attach; row < child->bottom_attach; row++)
1332                       table->rows[row].need_shrink = FALSE;
1333                 }
1334             }
1335         }
1336     }
1337
1338   /* Loop over the columns and set the expand and shrink values
1339    *  if the column can be expanded or shrunk.
1340    */
1341   for (col = 0; col < table->ncols; col++)
1342     {
1343       if (table->cols[col].empty)
1344         {
1345           table->cols[col].expand = FALSE;
1346           table->cols[col].shrink = FALSE;
1347         }
1348       else
1349         {
1350           if (table->cols[col].need_expand)
1351             table->cols[col].expand = TRUE;
1352           if (!table->cols[col].need_shrink)
1353             table->cols[col].shrink = FALSE;
1354         }
1355     }
1356
1357   /* Loop over the rows and set the expand and shrink values
1358    *  if the row can be expanded or shrunk.
1359    */
1360   for (row = 0; row < table->nrows; row++)
1361     {
1362       if (table->rows[row].empty)
1363         {
1364           table->rows[row].expand = FALSE;
1365           table->rows[row].shrink = FALSE;
1366         }
1367       else
1368         {
1369           if (table->rows[row].need_expand)
1370             table->rows[row].expand = TRUE;
1371           if (!table->rows[row].need_shrink)
1372             table->rows[row].shrink = FALSE;
1373         }
1374     }
1375 }
1376
1377 static void
1378 gtk_table_size_allocate_pass1 (GtkTable *table)
1379 {
1380   gint real_width;
1381   gint real_height;
1382   gint width, height;
1383   gint row, col;
1384   gint nexpand;
1385   gint nshrink;
1386   gint extra;
1387
1388   /* If we were allocated more space than we requested
1389    *  then we have to expand any expandable rows and columns
1390    *  to fill in the extra space.
1391    */
1392
1393   real_width = GTK_WIDGET (table)->allocation.width - GTK_CONTAINER (table)->border_width * 2;
1394   real_height = GTK_WIDGET (table)->allocation.height - GTK_CONTAINER (table)->border_width * 2;
1395
1396   if (table->homogeneous)
1397     {
1398       if (!table->children)
1399         nexpand = 1;
1400       else
1401         {
1402           nexpand = 0;
1403           for (col = 0; col < table->ncols; col++)
1404             if (table->cols[col].expand)
1405               {
1406                 nexpand += 1;
1407                 break;
1408               }
1409         }
1410       if (nexpand)
1411         {
1412           width = real_width;
1413           for (col = 0; col + 1 < table->ncols; col++)
1414             width -= table->cols[col].spacing;
1415
1416           for (col = 0; col < table->ncols; col++)
1417             {
1418               extra = width / (table->ncols - col);
1419               table->cols[col].allocation = MAX (1, extra);
1420               width -= extra;
1421             }
1422         }
1423     }
1424   else
1425     {
1426       width = 0;
1427       nexpand = 0;
1428       nshrink = 0;
1429
1430       for (col = 0; col < table->ncols; col++)
1431         {
1432           width += table->cols[col].requisition;
1433           if (table->cols[col].expand)
1434             nexpand += 1;
1435           if (table->cols[col].shrink)
1436             nshrink += 1;
1437         }
1438       for (col = 0; col + 1 < table->ncols; col++)
1439         width += table->cols[col].spacing;
1440
1441       /* Check to see if we were allocated more width than we requested.
1442        */
1443       if ((width < real_width) && (nexpand >= 1))
1444         {
1445           width = real_width - width;
1446
1447           for (col = 0; col < table->ncols; col++)
1448             if (table->cols[col].expand)
1449               {
1450                 extra = width / nexpand;
1451                 table->cols[col].allocation += extra;
1452
1453                 width -= extra;
1454                 nexpand -= 1;
1455               }
1456         }
1457
1458       /* Check to see if we were allocated less width than we requested,
1459        * then shrink until we fit the size give.
1460        */
1461       if (width > real_width)
1462         {
1463           gint total_nshrink = nshrink;
1464
1465           extra = width - real_width;
1466           while (total_nshrink > 0 && extra > 0)
1467             {
1468               nshrink = total_nshrink;
1469               for (col = 0; col < table->ncols; col++)
1470                 if (table->cols[col].shrink)
1471                   {
1472                     gint allocation = table->cols[col].allocation;
1473
1474                     table->cols[col].allocation = MAX (1, (gint) table->cols[col].allocation - extra / nshrink);
1475                     extra -= allocation - table->cols[col].allocation;
1476                     nshrink -= 1;
1477                     if (table->cols[col].allocation < 2)
1478                       {
1479                         total_nshrink -= 1;
1480                         table->cols[col].shrink = FALSE;
1481                       }
1482                   }
1483             }
1484         }
1485     }
1486
1487   if (table->homogeneous)
1488     {
1489       if (!table->children)
1490         nexpand = 1;
1491       else
1492         {
1493           nexpand = 0;
1494           for (row = 0; row < table->nrows; row++)
1495             if (table->rows[row].expand)
1496               {
1497                 nexpand += 1;
1498                 break;
1499               }
1500         }
1501       if (nexpand)
1502         {
1503           height = real_height;
1504
1505           for (row = 0; row + 1 < table->nrows; row++)
1506             height -= table->rows[row].spacing;
1507
1508
1509           for (row = 0; row < table->nrows; row++)
1510             {
1511               extra = height / (table->nrows - row);
1512               table->rows[row].allocation = MAX (1, extra);
1513               height -= extra;
1514             }
1515         }
1516     }
1517   else
1518     {
1519       height = 0;
1520       nexpand = 0;
1521       nshrink = 0;
1522
1523       for (row = 0; row < table->nrows; row++)
1524         {
1525           height += table->rows[row].requisition;
1526           if (table->rows[row].expand)
1527             nexpand += 1;
1528           if (table->rows[row].shrink)
1529             nshrink += 1;
1530         }
1531       for (row = 0; row + 1 < table->nrows; row++)
1532         height += table->rows[row].spacing;
1533
1534       /* Check to see if we were allocated more height than we requested.
1535        */
1536       if ((height < real_height) && (nexpand >= 1))
1537         {
1538           height = real_height - height;
1539
1540           for (row = 0; row < table->nrows; row++)
1541             if (table->rows[row].expand)
1542               {
1543                 extra = height / nexpand;
1544                 table->rows[row].allocation += extra;
1545
1546                 height -= extra;
1547                 nexpand -= 1;
1548               }
1549         }
1550
1551       /* Check to see if we were allocated less height than we requested.
1552        * then shrink until we fit the size give.
1553        */
1554       if (height > real_height)
1555         {
1556           gint total_nshrink = nshrink;
1557
1558           extra = height - real_height;
1559           while (total_nshrink > 0 && extra > 0)
1560             {
1561               nshrink = total_nshrink;
1562               for (row = 0; row < table->nrows; row++)
1563                 if (table->rows[row].shrink)
1564                   {
1565                     gint allocation = table->rows[row].allocation;
1566
1567                     table->rows[row].allocation = MAX (1, (gint) table->rows[row].allocation - extra / nshrink);
1568                     extra -= allocation - table->rows[row].allocation;
1569                     nshrink -= 1;
1570                     if (table->rows[row].allocation < 2)
1571                       {
1572                         total_nshrink -= 1;
1573                         table->rows[row].shrink = FALSE;
1574                       }
1575                   }
1576             }
1577         }
1578     }
1579 }
1580
1581 static void
1582 gtk_table_size_allocate_pass2 (GtkTable *table)
1583 {
1584   GtkTableChild *child;
1585   GList *children;
1586   gint max_width;
1587   gint max_height;
1588   gint x, y;
1589   gint row, col;
1590   GtkAllocation allocation;
1591   GtkWidget *widget = GTK_WIDGET (table);
1592
1593   children = table->children;
1594   while (children)
1595     {
1596       child = children->data;
1597       children = children->next;
1598
1599       if (GTK_WIDGET_VISIBLE (child->widget))
1600         {
1601           GtkRequisition child_requisition;
1602           gtk_widget_get_child_requisition (child->widget, &child_requisition);
1603
1604           x = GTK_WIDGET (table)->allocation.x + GTK_CONTAINER (table)->border_width;
1605           y = GTK_WIDGET (table)->allocation.y + GTK_CONTAINER (table)->border_width;
1606           max_width = 0;
1607           max_height = 0;
1608
1609           for (col = 0; col < child->left_attach; col++)
1610             {
1611               x += table->cols[col].allocation;
1612               x += table->cols[col].spacing;
1613             }
1614
1615           for (col = child->left_attach; col < child->right_attach; col++)
1616             {
1617               max_width += table->cols[col].allocation;
1618               if ((col + 1) < child->right_attach)
1619                 max_width += table->cols[col].spacing;
1620             }
1621
1622           for (row = 0; row < child->top_attach; row++)
1623             {
1624               y += table->rows[row].allocation;
1625               y += table->rows[row].spacing;
1626             }
1627
1628           for (row = child->top_attach; row < child->bottom_attach; row++)
1629             {
1630               max_height += table->rows[row].allocation;
1631               if ((row + 1) < child->bottom_attach)
1632                 max_height += table->rows[row].spacing;
1633             }
1634
1635           if (child->xfill)
1636             {
1637               allocation.width = MAX (1, max_width - (gint)child->xpadding * 2);
1638               allocation.x = x + (max_width - allocation.width) / 2;
1639             }
1640           else
1641             {
1642               allocation.width = child_requisition.width;
1643               allocation.x = x + (max_width - allocation.width) / 2;
1644             }
1645
1646           if (child->yfill)
1647             {
1648               allocation.height = MAX (1, max_height - (gint)child->ypadding * 2);
1649               allocation.y = y + (max_height - allocation.height) / 2;
1650             }
1651           else
1652             {
1653               allocation.height = child_requisition.height;
1654               allocation.y = y + (max_height - allocation.height) / 2;
1655             }
1656
1657           if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
1658             allocation.x = widget->allocation.x + widget->allocation.width
1659               - (allocation.x - widget->allocation.x) - allocation.width;
1660
1661           gtk_widget_size_allocate (child->widget, &allocation);
1662         }
1663     }
1664 }