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_map           (GtkWidget      *widget);
  58 static void gtk_table_unmap         (GtkWidget      *widget);
  59 static void gtk_table_size_request  (GtkWidget      *widget,
  60                                      GtkRequisition *requisition);
  61 static void gtk_table_size_allocate (GtkWidget      *widget,
  62                                      GtkAllocation  *allocation);
  63 static void gtk_table_add           (GtkContainer   *container,
  64                                      GtkWidget      *widget);
  65 static void gtk_table_remove        (GtkContainer   *container,
  66                                      GtkWidget      *widget);
  67 static void gtk_table_forall        (GtkContainer   *container,
  68                                      gboolean        include_internals,
  69                                      GtkCallback     callback,
  70                                      gpointer        callback_data);
  71 static void gtk_table_get_property  (GObject         *object,
  72                                      guint            prop_id,
  73                                      GValue          *value,
  74                                      GParamSpec      *pspec);
  75 static void gtk_table_set_property  (GObject         *object,
  76                                      guint            prop_id,
  77                                      const GValue    *value,
  78                                      GParamSpec      *pspec);
  79 static void gtk_table_set_child_property (GtkContainer    *container,
  80                                           GtkWidget       *child,
  81                                           guint            property_id,
  82                                           const GValue    *value,
  83                                           GParamSpec      *pspec);
  84 static void gtk_table_get_child_property (GtkContainer    *container,
  85                                           GtkWidget       *child,
  86                                           guint            property_id,
  87                                           GValue          *value,
  88                                           GParamSpec      *pspec);
  89 static GtkType gtk_table_child_type (GtkContainer   *container);
  90
  91
  92 static void gtk_table_size_request_init  (GtkTable *table);
  93 static void gtk_table_size_request_pass1 (GtkTable *table);
  94 static void gtk_table_size_request_pass2 (GtkTable *table);
  95 static void gtk_table_size_request_pass3 (GtkTable *table);
  96
  97 static void gtk_table_size_allocate_init  (GtkTable *table);
  98 static void gtk_table_size_allocate_pass1 (GtkTable *table);
  99 static void gtk_table_size_allocate_pass2 (GtkTable *table);
 100
 101
 102 static GtkContainerClass *parent_class = NULL;
 103
 104
 105 GtkType
 106 gtk_table_get_type (void)
 107 {
 108   static GtkType table_type = 0;
 109
 110   if (!table_type)
 111     {
 112       static const GtkTypeInfo table_info =
 113       {
 114         "GtkTable",
 115         sizeof (GtkTable),
 116         sizeof (GtkTableClass),
 117         (GtkClassInitFunc) gtk_table_class_init,
 118         (GtkObjectInitFunc) gtk_table_init,
 119         /* reserved_1 */ NULL,
 120         /* reserved_2 */ NULL,
 121         (GtkClassInitFunc) NULL,
 122       };
 123
 124       table_type = gtk_type_unique (gtk_container_get_type (), &table_info);
 125     }
 126
 127   return table_type;
 128 }
 129
 130 static void
 131 gtk_table_class_init (GtkTableClass *class)
 132 {
 133   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 134   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
 135   GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
 136
 137   parent_class = g_type_class_peek_parent (class);
 138
 139   gobject_class->finalize = gtk_table_finalize;
 140
 141   gobject_class->get_property = gtk_table_get_property;
 142   gobject_class->set_property = gtk_table_set_property;
 143
 144   widget_class->map = gtk_table_map;
 145   widget_class->unmap = gtk_table_unmap;
 146   widget_class->size_request = gtk_table_size_request;
 147   widget_class->size_allocate = gtk_table_size_allocate;
 148
 149   container_class->add = gtk_table_add;
 150   container_class->remove = gtk_table_remove;
 151   container_class->forall = gtk_table_forall;
 152   container_class->child_type = gtk_table_child_type;
 153   container_class->set_child_property = gtk_table_set_child_property;
 154   container_class->get_child_property = gtk_table_get_child_property;
 155
 156
 157   g_object_class_install_property (gobject_class,
 158                                    PROP_N_ROWS,
 159                                    g_param_spec_uint ("n_rows",
 160                                                      _("Rows"),
 161                                                      _("The number of rows in the table"),
 162                                                      0,
 163                                                      G_MAXUINT,
 164                                                      0,
 165                                                      G_PARAM_READWRITE));
 166   g_object_class_install_property (gobject_class,
 167                                    PROP_N_COLUMNS,
 168                                    g_param_spec_uint ("n_columns",
 169                                                      _("Columns"),
 170                                                      _("The number of columns in the table"),
 171                                                      0,
 172                                                      G_MAXUINT,
 173                                                      0,
 174                                                      G_PARAM_READWRITE));
 175   g_object_class_install_property (gobject_class,
 176                                    PROP_ROW_SPACING,
 177                                    g_param_spec_uint ("row_spacing",
 178                                                      _("Row spacing"),
 179                                                      _("The amount of space between two consecutive rows"),
 180                                                      0,
 181                                                      G_MAXUINT,
 182                                                      0,
 183                                                      G_PARAM_READWRITE));
 184   g_object_class_install_property (gobject_class,
 185                                    PROP_COLUMN_SPACING,
 186                                    g_param_spec_uint ("column_spacing",
 187                                                      _("Column spacing"),
 188                                                      _("The amount of space between two consecutive columns"),
 189                                                      0,
 190                                                      G_MAXUINT,
 191                                                      0,
 192                                                      G_PARAM_READWRITE));
 193   g_object_class_install_property (gobject_class,
 194                                    PROP_HOMOGENEOUS,
 195                                    g_param_spec_boolean ("homogeneous",
 196                                                          _("Homogenous"),
 197                                                          _("If TRUE this means the table cells are all the same width/height"),
 198                                                          FALSE,
 199                                                          G_PARAM_READWRITE));
 200
 201   gtk_container_class_install_child_property (container_class,
 202                                               CHILD_PROP_LEFT_ATTACH,
 203                                               g_param_spec_uint ("left_attach", NULL, NULL,
 204                                                                  0, 65535, 0,
 205                                                                  G_PARAM_READWRITE));
 206   gtk_container_class_install_child_property (container_class,
 207                                               CHILD_PROP_RIGHT_ATTACH,
 208                                               g_param_spec_uint ("right_attach", NULL, NULL,
 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", NULL, NULL,
 214                                                                  0, 65535, 0,
 215                                                                  G_PARAM_READWRITE));
 216   gtk_container_class_install_child_property (container_class,
 217                                               CHILD_PROP_BOTTOM_ATTACH,
 218                                               g_param_spec_uint ("bottom_attach", NULL, NULL,
 219                                                                  1, 65535, 1,
 220                                                                  G_PARAM_READWRITE));
 221   gtk_container_class_install_child_property (container_class,
 222                                               CHILD_PROP_X_OPTIONS,
 223                                               g_param_spec_flags ("x_options", NULL, NULL,
 224                                                                   GTK_TYPE_ATTACH_OPTIONS, GTK_EXPAND | GTK_FILL,
 225                                                                   G_PARAM_READWRITE));
 226   gtk_container_class_install_child_property (container_class,
 227                                               CHILD_PROP_Y_OPTIONS,
 228                                               g_param_spec_flags ("y_options", NULL, NULL,
 229                                                                   GTK_TYPE_ATTACH_OPTIONS, GTK_EXPAND | GTK_FILL,
 230                                                                   G_PARAM_READWRITE));
 231   gtk_container_class_install_child_property (container_class,
 232                                               CHILD_PROP_X_PADDING,
 233                                               g_param_spec_uint ("x_padding", NULL, NULL,
 234                                                                  0, 65535, 0,
 235                                                                  G_PARAM_READWRITE));
 236   gtk_container_class_install_child_property (container_class,
 237                                               CHILD_PROP_Y_PADDING,
 238                                               g_param_spec_uint ("y_padding", NULL, NULL,
 239                                                                  0, 65535, 0,
 240                                                                  G_PARAM_READWRITE));
 241 }
 242
 243 static GtkType
 244 gtk_table_child_type (GtkContainer   *container)
 245 {
 246   return GTK_TYPE_WIDGET;
 247 }
 248
 249 static void
 250 gtk_table_get_property (GObject      *object,
 251                         guint         prop_id,
 252                         GValue       *value,
 253                         GParamSpec   *pspec)
 254 {
 255   GtkTable *table;
 256
 257   table = GTK_TABLE (object);
 258
 259   switch (prop_id)
 260     {
 261     case PROP_N_ROWS:
 262       g_value_set_uint (value, table->nrows);
 263       break;
 264     case PROP_N_COLUMNS:
 265       g_value_set_uint (value, table->ncols);
 266       break;
 267     case PROP_ROW_SPACING:
 268       g_value_set_uint (value, table->row_spacing);
 269       break;
 270     case PROP_COLUMN_SPACING:
 271       g_value_set_uint (value, table->column_spacing);
 272       break;
 273     case PROP_HOMOGENEOUS:
 274       g_value_set_boolean (value, table->homogeneous);
 275       break;
 276     default:
 277       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 278       break;
 279     }
 280 }
 281
 282 static void
 283 gtk_table_set_property (GObject      *object,
 284                         guint         prop_id,
 285                         const GValue *value,
 286                         GParamSpec   *pspec)
 287 {
 288   GtkTable *table;
 289
 290   table = GTK_TABLE (object);
 291
 292   switch (prop_id)
 293     {
 294     case PROP_N_ROWS:
 295       gtk_table_resize (table, g_value_get_uint (value), table->ncols);
 296       break;
 297     case PROP_N_COLUMNS:
 298       gtk_table_resize (table, table->nrows, g_value_get_uint (value));
 299       break;
 300     case PROP_ROW_SPACING:
 301       gtk_table_set_row_spacings (table, g_value_get_uint (value));
 302       break;
 303     case PROP_COLUMN_SPACING:
 304       gtk_table_set_col_spacings (table, g_value_get_uint (value));
 305       break;
 306     case PROP_HOMOGENEOUS:
 307       gtk_table_set_homogeneous (table, g_value_get_boolean (value));
 308       break;
 309     default:
 310       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 311       break;
 312     }
 313 }
 314
 315 static void
 316 gtk_table_set_child_property (GtkContainer    *container,
 317                               GtkWidget       *child,
 318                               guint            property_id,
 319                               const GValue    *value,
 320                               GParamSpec      *pspec)
 321 {
 322   GtkTable *table = GTK_TABLE (container);
 323   GtkTableChild *table_child;
 324   GList *list;
 325
 326   table_child = NULL;
 327   for (list = table->children; list; list = list->next)
 328     {
 329       table_child = list->data;
 330
 331       if (table_child->widget == child)
 332         break;
 333     }
 334   if (!list)
 335     {
 336       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 337       return;
 338     }
 339
 340   switch (property_id)
 341     {
 342     case CHILD_PROP_LEFT_ATTACH:
 343       table_child->left_attach = g_value_get_uint (value);
 344       if (table_child->right_attach <= table_child->left_attach)
 345         table_child->right_attach = table_child->left_attach + 1;
 346       if (table_child->right_attach >= table->ncols)
 347         gtk_table_resize (table, table->ncols, table_child->right_attach);
 348       break;
 349     case CHILD_PROP_RIGHT_ATTACH:
 350       table_child->right_attach = g_value_get_uint (value);
 351       if (table_child->right_attach <= table_child->left_attach)
 352         table_child->left_attach = table_child->right_attach - 1;
 353       if (table_child->right_attach >= table->ncols)
 354         gtk_table_resize (table, table->ncols, table_child->right_attach);
 355       break;
 356     case CHILD_PROP_TOP_ATTACH:
 357       table_child->top_attach = g_value_get_uint (value);
 358       if (table_child->bottom_attach <= table_child->top_attach)
 359         table_child->bottom_attach = table_child->top_attach + 1;
 360       if (table_child->bottom_attach >= table->nrows)
 361         gtk_table_resize (table, table_child->bottom_attach, table->ncols);
 362       break;
 363     case CHILD_PROP_BOTTOM_ATTACH:
 364       table_child->bottom_attach = g_value_get_uint (value);
 365       if (table_child->bottom_attach <= table_child->top_attach)
 366         table_child->top_attach = table_child->bottom_attach - 1;
 367       if (table_child->bottom_attach >= table->nrows)
 368         gtk_table_resize (table, table_child->bottom_attach, table->ncols);
 369       break;
 370     case CHILD_PROP_X_OPTIONS:
 371       table_child->xexpand = (g_value_get_flags (value) & GTK_EXPAND) != 0;
 372       table_child->xshrink = (g_value_get_flags (value) & GTK_SHRINK) != 0;
 373       table_child->xfill = (g_value_get_flags (value) & GTK_FILL) != 0;
 374       break;
 375     case CHILD_PROP_Y_OPTIONS:
 376       table_child->yexpand = (g_value_get_flags (value) & GTK_EXPAND) != 0;
 377       table_child->yshrink = (g_value_get_flags (value) & GTK_SHRINK) != 0;
 378       table_child->yfill = (g_value_get_flags (value) & GTK_FILL) != 0;
 379       break;
 380     case CHILD_PROP_X_PADDING:
 381       table_child->xpadding = g_value_get_uint (value);
 382       break;
 383     case CHILD_PROP_Y_PADDING:
 384       table_child->ypadding = g_value_get_uint (value);
 385       break;
 386     default:
 387       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 388       break;
 389     }
 390   if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (table))
 391     gtk_widget_queue_resize (child);
 392 }
 393
 394 static void
 395 gtk_table_get_child_property (GtkContainer    *container,
 396                               GtkWidget       *child,
 397                               guint            property_id,
 398                               GValue          *value,
 399                               GParamSpec      *pspec)
 400 {
 401   GtkTable *table = GTK_TABLE (container);
 402   GtkTableChild *table_child;
 403   GList *list;
 404
 405   table_child = NULL;
 406   for (list = table->children; list; list = list->next)
 407     {
 408       table_child = list->data;
 409
 410       if (table_child->widget == child)
 411         break;
 412     }
 413   if (!list)
 414     {
 415       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 416       return;
 417     }
 418
 419   switch (property_id)
 420     {
 421     case CHILD_PROP_LEFT_ATTACH:
 422       g_value_set_uint (value, table_child->left_attach);
 423       break;
 424     case CHILD_PROP_RIGHT_ATTACH:
 425       g_value_set_uint (value, table_child->right_attach);
 426       break;
 427     case CHILD_PROP_TOP_ATTACH:
 428       g_value_set_uint (value, table_child->top_attach);
 429       break;
 430     case CHILD_PROP_BOTTOM_ATTACH:
 431       g_value_set_uint (value, table_child->bottom_attach);
 432       break;
 433     case CHILD_PROP_X_OPTIONS:
 434       g_value_set_flags (value, (table_child->xexpand * GTK_EXPAND |
 435                                  table_child->xshrink * GTK_SHRINK |
 436                                  table_child->xfill * GTK_FILL));
 437       break;
 438     case CHILD_PROP_Y_OPTIONS:
 439       g_value_set_flags (value, (table_child->yexpand * GTK_EXPAND |
 440                                  table_child->yshrink * GTK_SHRINK |
 441                                  table_child->yfill * GTK_FILL));
 442       break;
 443     case CHILD_PROP_X_PADDING:
 444       g_value_set_uint (value, table_child->xpadding);
 445       break;
 446     case CHILD_PROP_Y_PADDING:
 447       g_value_set_uint (value, table_child->ypadding);
 448       break;
 449     default:
 450       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 451       break;
 452     }
 453 }
 454
 455 static void
 456 gtk_table_init (GtkTable *table)
 457 {
 458   GTK_WIDGET_SET_FLAGS (table, GTK_NO_WINDOW);
 459
 460   table->children = NULL;
 461   table->rows = NULL;
 462   table->cols = NULL;
 463   table->nrows = 0;
 464   table->ncols = 0;
 465   table->column_spacing = 0;
 466   table->row_spacing = 0;
 467   table->homogeneous = FALSE;
 468
 469   gtk_table_resize (table, 1, 1);
 470 }
 471
 472 GtkWidget*
 473 gtk_table_new (guint    rows,
 474                guint    columns,
 475                gboolean homogeneous)
 476 {
 477   GtkTable *table;
 478
 479   if (rows == 0)
 480           rows = 1;
 481   if (columns == 0)
 482           columns = 1;
 483
 484   table = gtk_type_new (gtk_table_get_type ());
 485
 486   table->homogeneous = (homogeneous ? TRUE : FALSE);
 487
 488   gtk_table_resize (table, rows, columns);
 489
 490   return GTK_WIDGET (table);
 491 }
 492
 493 void
 494 gtk_table_resize (GtkTable *table,
 495                   guint     n_rows,
 496                   guint     n_cols)
 497 {
 498   g_return_if_fail (GTK_IS_TABLE (table));
 499   g_return_if_fail (n_rows > 0 && n_rows < 65536);
 500   g_return_if_fail (n_rows > 0 && n_cols < 65536);
 501
 502   n_rows = MAX (n_rows, 1);
 503   n_cols = MAX (n_cols, 1);
 504
 505   if (n_rows != table->nrows ||
 506       n_cols != table->ncols)
 507     {
 508       GList *list;
 509
 510       for (list = table->children; list; list = list->next)
 511         {
 512           GtkTableChild *child;
 513
 514           child = list->data;
 515
 516           n_rows = MAX (n_rows, child->bottom_attach);
 517           n_cols = MAX (n_cols, child->right_attach);
 518         }
 519
 520       if (n_rows != table->nrows)
 521         {
 522           guint i;
 523
 524           i = table->nrows;
 525           table->nrows = n_rows;
 526           table->rows = g_realloc (table->rows, table->nrows * sizeof (GtkTableRowCol));
 527
 528           for (; i < table->nrows; i++)
 529             {
 530               table->rows[i].requisition = 0;
 531               table->rows[i].allocation = 0;
 532               table->rows[i].spacing = table->row_spacing;
 533               table->rows[i].need_expand = 0;
 534               table->rows[i].need_shrink = 0;
 535               table->rows[i].expand = 0;
 536               table->rows[i].shrink = 0;
 537             }
 538
 539           g_object_notify (G_OBJECT (table), "n_rows");
 540         }
 541
 542       if (n_cols != table->ncols)
 543         {
 544           guint i;
 545
 546           i = table->ncols;
 547           table->ncols = n_cols;
 548           table->cols = g_realloc (table->cols, table->ncols * sizeof (GtkTableRowCol));
 549
 550           for (; i < table->ncols; i++)
 551             {
 552               table->cols[i].requisition = 0;
 553               table->cols[i].allocation = 0;
 554               table->cols[i].spacing = table->column_spacing;
 555               table->cols[i].need_expand = 0;
 556               table->cols[i].need_shrink = 0;
 557               table->cols[i].expand = 0;
 558               table->cols[i].shrink = 0;
 559             }
 560
 561           g_object_notify (G_OBJECT (table), "n_columns");
 562         }
 563     }
 564 }
 565
 566 void
 567 gtk_table_attach (GtkTable        *table,
 568                   GtkWidget       *child,
 569                   guint            left_attach,
 570                   guint            right_attach,
 571                   guint            top_attach,
 572                   guint            bottom_attach,
 573                   GtkAttachOptions xoptions,
 574                   GtkAttachOptions yoptions,
 575                   guint            xpadding,
 576                   guint            ypadding)
 577 {
 578   GtkTableChild *table_child;
 579
 580   g_return_if_fail (GTK_IS_TABLE (table));
 581   g_return_if_fail (GTK_IS_WIDGET (child));
 582   g_return_if_fail (child->parent == NULL);
 583
 584   /* g_return_if_fail (left_attach >= 0); */
 585   g_return_if_fail (left_attach < right_attach);
 586   /* g_return_if_fail (top_attach >= 0); */
 587   g_return_if_fail (top_attach < bottom_attach);
 588
 589   if (right_attach >= table->ncols)
 590     gtk_table_resize (table, table->nrows, right_attach);
 591
 592   if (bottom_attach >= table->nrows)
 593     gtk_table_resize (table, bottom_attach, table->ncols);
 594
 595   table_child = g_new (GtkTableChild, 1);
 596   table_child->widget = child;
 597   table_child->left_attach = left_attach;
 598   table_child->right_attach = right_attach;
 599   table_child->top_attach = top_attach;
 600   table_child->bottom_attach = bottom_attach;
 601   table_child->xexpand = (xoptions & GTK_EXPAND) != 0;
 602   table_child->xshrink = (xoptions & GTK_SHRINK) != 0;
 603   table_child->xfill = (xoptions & GTK_FILL) != 0;
 604   table_child->xpadding = xpadding;
 605   table_child->yexpand = (yoptions & GTK_EXPAND) != 0;
 606   table_child->yshrink = (yoptions & GTK_SHRINK) != 0;
 607   table_child->yfill = (yoptions & GTK_FILL) != 0;
 608   table_child->ypadding = ypadding;
 609
 610   table->children = g_list_prepend (table->children, table_child);
 611
 612   gtk_widget_set_parent (child, GTK_WIDGET (table));
 613
 614   if (GTK_WIDGET_REALIZED (child->parent))
 615     gtk_widget_realize (child);
 616
 617   if (GTK_WIDGET_VISIBLE (child->parent) && GTK_WIDGET_VISIBLE (child))
 618     {
 619       if (GTK_WIDGET_MAPPED (child->parent))
 620         gtk_widget_map (child);
 621
 622       gtk_widget_queue_resize (child);
 623     }
 624 }
 625
 626 void
 627 gtk_table_attach_defaults (GtkTable  *table,
 628                            GtkWidget *widget,
 629                            guint      left_attach,
 630                            guint      right_attach,
 631                            guint      top_attach,
 632                            guint      bottom_attach)
 633 {
 634   gtk_table_attach (table, widget,
 635                     left_attach, right_attach,
 636                     top_attach, bottom_attach,
 637                     GTK_EXPAND | GTK_FILL,
 638                     GTK_EXPAND | GTK_FILL,
 639                     0, 0);
 640 }
 641
 642 void
 643 gtk_table_set_row_spacing (GtkTable *table,
 644                            guint     row,
 645                            guint     spacing)
 646 {
 647   g_return_if_fail (GTK_IS_TABLE (table));
 648   g_return_if_fail (row < table->nrows);
 649
 650   if (table->rows[row].spacing != spacing)
 651     {
 652       table->rows[row].spacing = spacing;
 653
 654       if (GTK_WIDGET_VISIBLE (table))
 655         gtk_widget_queue_resize (GTK_WIDGET (table));
 656     }
 657
 658   g_object_notify (G_OBJECT (table), "row_spacing");
 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   g_object_notify (G_OBJECT (table), "column_spacing");
 698 }
 699
 700 /**
 701  * gtk_table_get_col_spacing:
 702  * @table: a #GtkTable
 703  * @col: a column in the table, 0 indicates the first column
 704  *
 705  * Gets the amount of space between column @col, and
 706  * column @col + 1. See gtk_table_set_col_spacing().
 707  *
 708  * Return value: the column spacing
 709  **/
 710 guint
 711 gtk_table_get_col_spacing (GtkTable *table,
 712                            guint     column)
 713 {
 714   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 715   g_return_val_if_fail (column < table->ncols, 0);
 716
 717   return table->cols[column].spacing;
 718 }
 719
 720 void
 721 gtk_table_set_row_spacings (GtkTable *table,
 722                             guint     spacing)
 723 {
 724   guint row;
 725
 726   g_return_if_fail (GTK_IS_TABLE (table));
 727
 728   table->row_spacing = spacing;
 729   for (row = 0; row < table->nrows; row++)
 730     table->rows[row].spacing = spacing;
 731
 732   if (GTK_WIDGET_VISIBLE (table))
 733     gtk_widget_queue_resize (GTK_WIDGET (table));
 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
 770 /**
 771  * gtk_table_get_default_col_spacing:
 772  * @table: a #GtkTable
 773  *
 774  * Gets the default column spacing for the table. This is
 775  * the spacing that will be used for newly added columns.
 776  * (See gtk_table_set_col_spacings())
 777  *
 778  * Returns value: the default column spacing
 779  **/
 780 guint
 781 gtk_table_get_default_col_spacing (GtkTable *table)
 782 {
 783   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 784
 785   return table->column_spacing;
 786 }
 787
 788 void
 789 gtk_table_set_homogeneous (GtkTable *table,
 790                            gboolean  homogeneous)
 791 {
 792   g_return_if_fail (GTK_IS_TABLE (table));
 793
 794   homogeneous = (homogeneous != 0);
 795   if (homogeneous != table->homogeneous)
 796     {
 797       table->homogeneous = homogeneous;
 798
 799       if (GTK_WIDGET_VISIBLE (table))
 800         gtk_widget_queue_resize (GTK_WIDGET (table));
 801     }
 802 }
 803
 804 /**
 805  * gtk_table_get_homogeneous:
 806  * @table: a #GtkTable
 807  *
 808  * Returns whether the table cells are all constrained to the same
 809  * width and height. (See gtk_table_set_homogenous ())
 810  *
 811  * Return value: %TRUE if the cells are all constrained to the same size
 812  **/
 813 gboolean
 814 gtk_table_get_homogeneous (GtkTable *table)
 815 {
 816   g_return_val_if_fail (GTK_IS_TABLE (table), FALSE);
 817
 818   return table->homogeneous;
 819 }
 820
 821 static void
 822 gtk_table_finalize (GObject *object)
 823 {
 824   GtkTable *table;
 825
 826   g_return_if_fail (GTK_IS_TABLE (object));
 827
 828   table = GTK_TABLE (object);
 829
 830   g_free (table->rows);
 831   g_free (table->cols);
 832
 833   G_OBJECT_CLASS (parent_class)->finalize (object);
 834 }
 835
 836 static void
 837 gtk_table_map (GtkWidget *widget)
 838 {
 839   GtkTable *table;
 840   GtkTableChild *child;
 841   GList *children;
 842
 843   g_return_if_fail (GTK_IS_TABLE (widget));
 844
 845   table = GTK_TABLE (widget);
 846   GTK_WIDGET_SET_FLAGS (table, GTK_MAPPED);
 847
 848   children = table->children;
 849   while (children)
 850     {
 851       child = children->data;
 852       children = children->next;
 853
 854       if (GTK_WIDGET_VISIBLE (child->widget) &&
 855           !GTK_WIDGET_MAPPED (child->widget))
 856         gtk_widget_map (child->widget);
 857     }
 858 }
 859
 860 static void
 861 gtk_table_unmap (GtkWidget *widget)
 862 {
 863   GtkTable *table;
 864   GtkTableChild *child;
 865   GList *children;
 866
 867   g_return_if_fail (GTK_IS_TABLE (widget));
 868
 869   table = GTK_TABLE (widget);
 870   GTK_WIDGET_UNSET_FLAGS (table, GTK_MAPPED);
 871
 872   children = table->children;
 873   while (children)
 874     {
 875       child = children->data;
 876       children = children->next;
 877
 878       if (GTK_WIDGET_VISIBLE (child->widget) &&
 879           GTK_WIDGET_MAPPED (child->widget))
 880         gtk_widget_unmap (child->widget);
 881     }
 882 }
 883
 884 static void
 885 gtk_table_size_request (GtkWidget      *widget,
 886                         GtkRequisition *requisition)
 887 {
 888   GtkTable *table;
 889   gint row, col;
 890
 891   g_return_if_fail (GTK_IS_TABLE (widget));
 892   g_return_if_fail (requisition != NULL);
 893
 894   table = GTK_TABLE (widget);
 895
 896   requisition->width = 0;
 897   requisition->height = 0;
 898
 899   gtk_table_size_request_init (table);
 900   gtk_table_size_request_pass1 (table);
 901   gtk_table_size_request_pass2 (table);
 902   gtk_table_size_request_pass3 (table);
 903   gtk_table_size_request_pass2 (table);
 904
 905   for (col = 0; col < table->ncols; col++)
 906     requisition->width += table->cols[col].requisition;
 907   for (col = 0; col + 1 < table->ncols; col++)
 908     requisition->width += table->cols[col].spacing;
 909
 910   for (row = 0; row < table->nrows; row++)
 911     requisition->height += table->rows[row].requisition;
 912   for (row = 0; row + 1 < table->nrows; row++)
 913     requisition->height += table->rows[row].spacing;
 914
 915   requisition->width += GTK_CONTAINER (table)->border_width * 2;
 916   requisition->height += GTK_CONTAINER (table)->border_width * 2;
 917 }
 918
 919 static void
 920 gtk_table_size_allocate (GtkWidget     *widget,
 921                          GtkAllocation *allocation)
 922 {
 923   GtkTable *table;
 924
 925   g_return_if_fail (GTK_IS_TABLE (widget));
 926   g_return_if_fail (allocation != NULL);
 927
 928   widget->allocation = *allocation;
 929   table = GTK_TABLE (widget);
 930
 931   gtk_table_size_allocate_init (table);
 932   gtk_table_size_allocate_pass1 (table);
 933   gtk_table_size_allocate_pass2 (table);
 934 }
 935
 936 static void
 937 gtk_table_add (GtkContainer *container,
 938                GtkWidget    *widget)
 939 {
 940   g_return_if_fail (GTK_IS_TABLE (container));
 941   g_return_if_fail (widget != NULL);
 942
 943   gtk_table_attach_defaults (GTK_TABLE (container), widget, 0, 1, 0, 1);
 944 }
 945
 946 static void
 947 gtk_table_remove (GtkContainer *container,
 948                   GtkWidget    *widget)
 949 {
 950   GtkTable *table;
 951   GtkTableChild *child;
 952   GList *children;
 953
 954   g_return_if_fail (GTK_IS_TABLE (container));
 955   g_return_if_fail (widget != NULL);
 956
 957   table = GTK_TABLE (container);
 958   children = table->children;
 959
 960   while (children)
 961     {
 962       child = children->data;
 963       children = children->next;
 964
 965       if (child->widget == widget)
 966         {
 967           gboolean was_visible = GTK_WIDGET_VISIBLE (widget);
 968
 969           gtk_widget_unparent (widget);
 970
 971           table->children = g_list_remove (table->children, child);
 972           g_free (child);
 973
 974           if (was_visible && GTK_WIDGET_VISIBLE (container))
 975             gtk_container_queue_resize (container);
 976           break;
 977         }
 978     }
 979 }
 980
 981 static void
 982 gtk_table_forall (GtkContainer *container,
 983                   gboolean      include_internals,
 984                   GtkCallback   callback,
 985                   gpointer      callback_data)
 986 {
 987   GtkTable *table;
 988   GtkTableChild *child;
 989   GList *children;
 990
 991   g_return_if_fail (GTK_IS_TABLE (container));
 992   g_return_if_fail (callback != NULL);
 993
 994   table = GTK_TABLE (container);
 995   children = table->children;
 996
 997   while (children)
 998     {
 999       child = children->data;
1000       children = children->next;
1001
1002       (* callback) (child->widget, callback_data);
1003     }
1004 }
1005
1006 static void
1007 gtk_table_size_request_init (GtkTable *table)
1008 {
1009   GtkTableChild *child;
1010   GList *children;
1011   gint row, col;
1012
1013   for (row = 0; row < table->nrows; row++)
1014     table->rows[row].requisition = 0;
1015   for (col = 0; col < table->ncols; col++)
1016     table->cols[col].requisition = 0;
1017
1018   children = table->children;
1019   while (children)
1020     {
1021       child = children->data;
1022       children = children->next;
1023
1024       if (GTK_WIDGET_VISIBLE (child->widget))
1025         gtk_widget_size_request (child->widget, NULL);
1026     }
1027 }
1028
1029 static void
1030 gtk_table_size_request_pass1 (GtkTable *table)
1031 {
1032   GtkTableChild *child;
1033   GList *children;
1034   gint width;
1035   gint height;
1036
1037   children = table->children;
1038   while (children)
1039     {
1040       child = children->data;
1041       children = children->next;
1042
1043       if (GTK_WIDGET_VISIBLE (child->widget))
1044         {
1045           GtkRequisition child_requisition;
1046           gtk_widget_get_child_requisition (child->widget, &child_requisition);
1047
1048           /* Child spans a single column.
1049            */
1050           if (child->left_attach == (child->right_attach - 1))
1051             {
1052               width = child_requisition.width + child->xpadding * 2;
1053               table->cols[child->left_attach].requisition = MAX (table->cols[child->left_attach].requisition, width);
1054             }
1055
1056           /* Child spans a single row.
1057            */
1058           if (child->top_attach == (child->bottom_attach - 1))
1059             {
1060               height = child_requisition.height + child->ypadding * 2;
1061               table->rows[child->top_attach].requisition = MAX (table->rows[child->top_attach].requisition, height);
1062             }
1063         }
1064     }
1065 }
1066
1067 static void
1068 gtk_table_size_request_pass2 (GtkTable *table)
1069 {
1070   gint max_width;
1071   gint max_height;
1072   gint row, col;
1073
1074   if (table->homogeneous)
1075     {
1076       max_width = 0;
1077       max_height = 0;
1078
1079       for (col = 0; col < table->ncols; col++)
1080         max_width = MAX (max_width, table->cols[col].requisition);
1081       for (row = 0; row < table->nrows; row++)
1082         max_height = MAX (max_height, table->rows[row].requisition);
1083
1084       for (col = 0; col < table->ncols; col++)
1085         table->cols[col].requisition = max_width;
1086       for (row = 0; row < table->nrows; row++)
1087         table->rows[row].requisition = max_height;
1088     }
1089 }
1090
1091 static void
1092 gtk_table_size_request_pass3 (GtkTable *table)
1093 {
1094   GtkTableChild *child;
1095   GList *children;
1096   gint width, height;
1097   gint row, col;
1098   gint extra;
1099
1100   children = table->children;
1101   while (children)
1102     {
1103       child = children->data;
1104       children = children->next;
1105
1106       if (GTK_WIDGET_VISIBLE (child->widget))
1107         {
1108           /* Child spans multiple columns.
1109            */
1110           if (child->left_attach != (child->right_attach - 1))
1111             {
1112               GtkRequisition child_requisition;
1113
1114               gtk_widget_get_child_requisition (child->widget, &child_requisition);
1115
1116               /* Check and see if there is already enough space
1117                *  for the child.
1118                */
1119               width = 0;
1120               for (col = child->left_attach; col < child->right_attach; col++)
1121                 {
1122                   width += table->cols[col].requisition;
1123                   if ((col + 1) < child->right_attach)
1124                     width += table->cols[col].spacing;
1125                 }
1126
1127               /* If we need to request more space for this child to fill
1128                *  its requisition, then divide up the needed space evenly
1129                *  amongst the columns it spans.
1130                */
1131               if (width < child_requisition.width + child->xpadding * 2)
1132                 {
1133                   width = child_requisition.width + child->xpadding * 2 - width;
1134
1135                   for (col = child->left_attach; col < child->right_attach; col++)
1136                     {
1137                       extra = width / (child->right_attach - col);
1138                       table->cols[col].requisition += extra;
1139                       width -= extra;
1140                     }
1141                 }
1142             }
1143
1144           /* Child spans multiple rows.
1145            */
1146           if (child->top_attach != (child->bottom_attach - 1))
1147             {
1148               GtkRequisition child_requisition;
1149
1150               gtk_widget_get_child_requisition (child->widget, &child_requisition);
1151
1152               /* Check and see if there is already enough space
1153                *  for the child.
1154                */
1155               height = 0;
1156               for (row = child->top_attach; row < child->bottom_attach; row++)
1157                 {
1158                   height += table->rows[row].requisition;
1159                   if ((row + 1) < child->bottom_attach)
1160                     height += table->rows[row].spacing;
1161                 }
1162
1163               /* If we need to request more space for this child to fill
1164                *  its requisition, then divide up the needed space evenly
1165                *  amongst the columns it spans.
1166                */
1167               if (height < child_requisition.height + child->ypadding * 2)
1168                 {
1169                   height = child_requisition.height + child->ypadding * 2 - height;
1170
1171                   for (row = child->top_attach; row < child->bottom_attach; row++)
1172                     {
1173                       extra = height / (child->bottom_attach - row);
1174                       table->rows[row].requisition += extra;
1175                       height -= extra;
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       nexpand = 0;
1399       for (col = 0; col < table->ncols; col++)
1400         if (table->cols[col].expand)
1401           {
1402             nexpand += 1;
1403             break;
1404           }
1405
1406       if (nexpand > 0)
1407         {
1408           width = real_width;
1409
1410           for (col = 0; col + 1 < table->ncols; col++)
1411             width -= table->cols[col].spacing;
1412
1413           for (col = 0; col < table->ncols; col++)
1414             {
1415               extra = width / (table->ncols - col);
1416               table->cols[col].allocation = MAX (1, extra);
1417               width -= extra;
1418             }
1419         }
1420     }
1421   else
1422     {
1423       width = 0;
1424       nexpand = 0;
1425       nshrink = 0;
1426
1427       for (col = 0; col < table->ncols; col++)
1428         {
1429           width += table->cols[col].requisition;
1430           if (table->cols[col].expand)
1431             nexpand += 1;
1432           if (table->cols[col].shrink)
1433             nshrink += 1;
1434         }
1435       for (col = 0; col + 1 < table->ncols; col++)
1436         width += table->cols[col].spacing;
1437
1438       /* Check to see if we were allocated more width than we requested.
1439        */
1440       if ((width < real_width) && (nexpand >= 1))
1441         {
1442           width = real_width - width;
1443
1444           for (col = 0; col < table->ncols; col++)
1445             if (table->cols[col].expand)
1446               {
1447                 extra = width / nexpand;
1448                 table->cols[col].allocation += extra;
1449
1450                 width -= extra;
1451                 nexpand -= 1;
1452               }
1453         }
1454
1455       /* Check to see if we were allocated less width than we requested,
1456        * then shrink until we fit the size give.
1457        */
1458       if (width > real_width)
1459         {
1460           gint total_nshrink = nshrink;
1461
1462           extra = width - real_width;
1463           while (total_nshrink > 0 && extra > 0)
1464             {
1465               nshrink = total_nshrink;
1466               for (col = 0; col < table->ncols; col++)
1467                 if (table->cols[col].shrink)
1468                   {
1469                     gint allocation = table->cols[col].allocation;
1470
1471                     table->cols[col].allocation = MAX (1, (gint) table->cols[col].allocation - extra / nshrink);
1472                     extra -= allocation - table->cols[col].allocation;
1473                     nshrink -= 1;
1474                     if (table->cols[col].allocation < 2)
1475                       {
1476                         total_nshrink -= 1;
1477                         table->cols[col].shrink = FALSE;
1478                       }
1479                   }
1480             }
1481         }
1482     }
1483
1484   if (table->homogeneous)
1485     {
1486       nexpand = 0;
1487       for (row = 0; row < table->nrows; row++)
1488         if (table->rows[row].expand)
1489           {
1490             nexpand += 1;
1491             break;
1492           }
1493
1494       if (nexpand > 0)
1495         {
1496           height = real_height;
1497
1498           for (row = 0; row + 1 < table->nrows; row++)
1499             height -= table->rows[row].spacing;
1500
1501
1502           for (row = 0; row < table->nrows; row++)
1503             {
1504               extra = height / (table->nrows - row);
1505               table->rows[row].allocation = MAX (1, extra);
1506               height -= extra;
1507             }
1508         }
1509     }
1510   else
1511     {
1512       height = 0;
1513       nexpand = 0;
1514       nshrink = 0;
1515
1516       for (row = 0; row < table->nrows; row++)
1517         {
1518           height += table->rows[row].requisition;
1519           if (table->rows[row].expand)
1520             nexpand += 1;
1521           if (table->rows[row].shrink)
1522             nshrink += 1;
1523         }
1524       for (row = 0; row + 1 < table->nrows; row++)
1525         height += table->rows[row].spacing;
1526
1527       /* Check to see if we were allocated more height than we requested.
1528        */
1529       if ((height < real_height) && (nexpand >= 1))
1530         {
1531           height = real_height - height;
1532
1533           for (row = 0; row < table->nrows; row++)
1534             if (table->rows[row].expand)
1535               {
1536                 extra = height / nexpand;
1537                 table->rows[row].allocation += extra;
1538
1539                 height -= extra;
1540                 nexpand -= 1;
1541               }
1542         }
1543
1544       /* Check to see if we were allocated less height than we requested.
1545        * then shrink until we fit the size give.
1546        */
1547       if (height > real_height)
1548         {
1549           gint total_nshrink = nshrink;
1550
1551           extra = height - real_height;
1552           while (total_nshrink > 0 && extra > 0)
1553             {
1554               nshrink = total_nshrink;
1555               for (row = 0; row < table->nrows; row++)
1556                 if (table->rows[row].shrink)
1557                   {
1558                     gint allocation = table->rows[row].allocation;
1559
1560                     table->rows[row].allocation = MAX (1, (gint) table->rows[row].allocation - extra / nshrink);
1561                     extra -= allocation - table->rows[row].allocation;
1562                     nshrink -= 1;
1563                     if (table->rows[row].allocation < 2)
1564                       {
1565                         total_nshrink -= 1;
1566                         table->rows[row].shrink = FALSE;
1567                       }
1568                   }
1569             }
1570         }
1571     }
1572 }
1573
1574 static void
1575 gtk_table_size_allocate_pass2 (GtkTable *table)
1576 {
1577   GtkTableChild *child;
1578   GList *children;
1579   gint max_width;
1580   gint max_height;
1581   gint x, y;
1582   gint row, col;
1583   GtkAllocation allocation;
1584   GtkWidget *widget = GTK_WIDGET (table);
1585
1586   children = table->children;
1587   while (children)
1588     {
1589       child = children->data;
1590       children = children->next;
1591
1592       if (GTK_WIDGET_VISIBLE (child->widget))
1593         {
1594           GtkRequisition child_requisition;
1595           gtk_widget_get_child_requisition (child->widget, &child_requisition);
1596
1597           x = GTK_WIDGET (table)->allocation.x + GTK_CONTAINER (table)->border_width;
1598           y = GTK_WIDGET (table)->allocation.y + GTK_CONTAINER (table)->border_width;
1599           max_width = 0;
1600           max_height = 0;
1601
1602           for (col = 0; col < child->left_attach; col++)
1603             {
1604               x += table->cols[col].allocation;
1605               x += table->cols[col].spacing;
1606             }
1607
1608           for (col = child->left_attach; col < child->right_attach; col++)
1609             {
1610               max_width += table->cols[col].allocation;
1611               if ((col + 1) < child->right_attach)
1612                 max_width += table->cols[col].spacing;
1613             }
1614
1615           for (row = 0; row < child->top_attach; row++)
1616             {
1617               y += table->rows[row].allocation;
1618               y += table->rows[row].spacing;
1619             }
1620
1621           for (row = child->top_attach; row < child->bottom_attach; row++)
1622             {
1623               max_height += table->rows[row].allocation;
1624               if ((row + 1) < child->bottom_attach)
1625                 max_height += table->rows[row].spacing;
1626             }
1627
1628           if (child->xfill)
1629             {
1630               allocation.width = MAX (1, max_width - (gint)child->xpadding * 2);
1631               allocation.x = x + (max_width - allocation.width) / 2;
1632             }
1633           else
1634             {
1635               allocation.width = child_requisition.width;
1636               allocation.x = x + (max_width - allocation.width) / 2;
1637             }
1638
1639           if (child->yfill)
1640             {
1641               allocation.height = MAX (1, max_height - (gint)child->ypadding * 2);
1642               allocation.y = y + (max_height - allocation.height) / 2;
1643             }
1644           else
1645             {
1646               allocation.height = child_requisition.height;
1647               allocation.y = y + (max_height - allocation.height) / 2;
1648             }
1649
1650           if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
1651             allocation.x = widget->allocation.x + widget->allocation.width
1652               - (allocation.x - widget->allocation.x) - allocation.width;
1653
1654           gtk_widget_size_allocate (child->widget, &allocation);
1655         }
1656     }
1657 }