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 <config.h>
  28 #include "gtktable.h"
  29 #include "gtkintl.h"
  30
  31 enum
  32 {
  33   PROP_0,
  34   PROP_N_ROWS,
  35   PROP_N_COLUMNS,
  36   PROP_COLUMN_SPACING,
  37   PROP_ROW_SPACING,
  38   PROP_HOMOGENEOUS
  39 };
  40
  41 enum
  42 {
  43   CHILD_PROP_0,
  44   CHILD_PROP_LEFT_ATTACH,
  45   CHILD_PROP_RIGHT_ATTACH,
  46   CHILD_PROP_TOP_ATTACH,
  47   CHILD_PROP_BOTTOM_ATTACH,
  48   CHILD_PROP_X_OPTIONS,
  49   CHILD_PROP_Y_OPTIONS,
  50   CHILD_PROP_X_PADDING,
  51   CHILD_PROP_Y_PADDING
  52 };
  53
  54
  55 static void gtk_table_class_init    (GtkTableClass  *klass);
  56 static void gtk_table_init          (GtkTable       *table);
  57 static void gtk_table_finalize      (GObject        *object);
  58 static void gtk_table_size_request  (GtkWidget      *widget,
  59                                      GtkRequisition *requisition);
  60 static void gtk_table_size_allocate (GtkWidget      *widget,
  61                                      GtkAllocation  *allocation);
  62 static void gtk_table_add           (GtkContainer   *container,
  63                                      GtkWidget      *widget);
  64 static void gtk_table_remove        (GtkContainer   *container,
  65                                      GtkWidget      *widget);
  66 static void gtk_table_forall        (GtkContainer   *container,
  67                                      gboolean        include_internals,
  68                                      GtkCallback     callback,
  69                                      gpointer        callback_data);
  70 static void gtk_table_get_property  (GObject         *object,
  71                                      guint            prop_id,
  72                                      GValue          *value,
  73                                      GParamSpec      *pspec);
  74 static void gtk_table_set_property  (GObject         *object,
  75                                      guint            prop_id,
  76                                      const GValue    *value,
  77                                      GParamSpec      *pspec);
  78 static void gtk_table_set_child_property (GtkContainer    *container,
  79                                           GtkWidget       *child,
  80                                           guint            property_id,
  81                                           const GValue    *value,
  82                                           GParamSpec      *pspec);
  83 static void gtk_table_get_child_property (GtkContainer    *container,
  84                                           GtkWidget       *child,
  85                                           guint            property_id,
  86                                           GValue          *value,
  87                                           GParamSpec      *pspec);
  88 static GType gtk_table_child_type   (GtkContainer   *container);
  89
  90
  91 static void gtk_table_size_request_init  (GtkTable *table);
  92 static void gtk_table_size_request_pass1 (GtkTable *table);
  93 static void gtk_table_size_request_pass2 (GtkTable *table);
  94 static void gtk_table_size_request_pass3 (GtkTable *table);
  95
  96 static void gtk_table_size_allocate_init  (GtkTable *table);
  97 static void gtk_table_size_allocate_pass1 (GtkTable *table);
  98 static void gtk_table_size_allocate_pass2 (GtkTable *table);
  99
 100
 101 static GtkContainerClass *parent_class = NULL;
 102
 103
 104 GType
 105 gtk_table_get_type (void)
 106 {
 107   static GType table_type = 0;
 108
 109   if (!table_type)
 110     {
 111       static const GTypeInfo table_info =
 112       {
 113         sizeof (GtkTableClass),
 114         NULL,
 115         NULL,
 116         (GClassInitFunc) gtk_table_class_init,
 117         NULL,
 118         NULL,
 119         sizeof (GtkTable),
 120         0,
 121         (GInstanceInitFunc) gtk_table_init,
 122       };
 123
 124       table_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkTable",
 125                                            &table_info, 0);
 126     }
 127
 128   return table_type;
 129 }
 130
 131 static void
 132 gtk_table_class_init (GtkTableClass *class)
 133 {
 134   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 135   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
 136   GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
 137
 138   parent_class = g_type_class_peek_parent (class);
 139
 140   gobject_class->finalize = gtk_table_finalize;
 141
 142   gobject_class->get_property = gtk_table_get_property;
 143   gobject_class->set_property = gtk_table_set_property;
 144
 145   widget_class->size_request = gtk_table_size_request;
 146   widget_class->size_allocate = gtk_table_size_allocate;
 147
 148   container_class->add = gtk_table_add;
 149   container_class->remove = gtk_table_remove;
 150   container_class->forall = gtk_table_forall;
 151   container_class->child_type = gtk_table_child_type;
 152   container_class->set_child_property = gtk_table_set_child_property;
 153   container_class->get_child_property = gtk_table_get_child_property;
 154
 155
 156   g_object_class_install_property (gobject_class,
 157                                    PROP_N_ROWS,
 158                                    g_param_spec_uint ("n_rows",
 159                                                      P_("Rows"),
 160                                                      P_("The number of rows in the table"),
 161                                                      0,
 162                                                      G_MAXUINT,
 163                                                      0,
 164                                                      G_PARAM_READWRITE));
 165   g_object_class_install_property (gobject_class,
 166                                    PROP_N_COLUMNS,
 167                                    g_param_spec_uint ("n_columns",
 168                                                      P_("Columns"),
 169                                                      P_("The number of columns in the table"),
 170                                                      0,
 171                                                      G_MAXUINT,
 172                                                      0,
 173                                                      G_PARAM_READWRITE));
 174   g_object_class_install_property (gobject_class,
 175                                    PROP_ROW_SPACING,
 176                                    g_param_spec_uint ("row_spacing",
 177                                                      P_("Row spacing"),
 178                                                      P_("The amount of space between two consecutive rows"),
 179                                                      0,
 180                                                      G_MAXUINT,
 181                                                      0,
 182                                                      G_PARAM_READWRITE));
 183   g_object_class_install_property (gobject_class,
 184                                    PROP_COLUMN_SPACING,
 185                                    g_param_spec_uint ("column_spacing",
 186                                                      P_("Column spacing"),
 187                                                      P_("The amount of space between two consecutive columns"),
 188                                                      0,
 189                                                      G_MAXUINT,
 190                                                      0,
 191                                                      G_PARAM_READWRITE));
 192   g_object_class_install_property (gobject_class,
 193                                    PROP_HOMOGENEOUS,
 194                                    g_param_spec_boolean ("homogeneous",
 195                                                          P_("Homogenous"),
 196                                                          P_("If TRUE this means the table cells are all the same width/height"),
 197                                                          FALSE,
 198                                                          G_PARAM_READWRITE));
 199
 200   gtk_container_class_install_child_property (container_class,
 201                                               CHILD_PROP_LEFT_ATTACH,
 202                                               g_param_spec_uint ("left_attach",
 203                                                                  P_("Left attachment"),
 204                                                                  P_("The column number to attach the left side of the child to"),
 205                                                                  0, 65535, 0,
 206                                                                  G_PARAM_READWRITE));
 207   gtk_container_class_install_child_property (container_class,
 208                                               CHILD_PROP_RIGHT_ATTACH,
 209                                               g_param_spec_uint ("right_attach",
 210                                                                  P_("Right attachment"),
 211                                                                  P_("The column number to attach the right side of a child widget to"),
 212                                                                  1, 65535, 1,
 213                                                                  G_PARAM_READWRITE));
 214   gtk_container_class_install_child_property (container_class,
 215                                               CHILD_PROP_TOP_ATTACH,
 216                                               g_param_spec_uint ("top_attach",
 217                                                                  P_("Top attachment"),
 218                                                                  P_("The row number to attach the top of a child widget to"),
 219                                                                  0, 65535, 0,
 220                                                                  G_PARAM_READWRITE));
 221   gtk_container_class_install_child_property (container_class,
 222                                               CHILD_PROP_BOTTOM_ATTACH,
 223                                               g_param_spec_uint ("bottom_attach",
 224                                                                  P_("Bottom attachment"),
 225                                                                  P_("The row number to attach the bottom of the child to"),
 226                                                                  1, 65535, 1,
 227                                                                  G_PARAM_READWRITE));
 228   gtk_container_class_install_child_property (container_class,
 229                                               CHILD_PROP_X_OPTIONS,
 230                                               g_param_spec_flags ("x_options",
 231                                                                   P_("Horizontal options"),
 232                                                                   P_("Options specifying the horizontal behaviour of the child"),
 233                                                                   GTK_TYPE_ATTACH_OPTIONS, GTK_EXPAND | GTK_FILL,
 234                                                                   G_PARAM_READWRITE));
 235   gtk_container_class_install_child_property (container_class,
 236                                               CHILD_PROP_Y_OPTIONS,
 237                                               g_param_spec_flags ("y_options",
 238                                                                   P_("Vertical options"),
 239                                                                   P_("Options specifying the vertical behaviour of the child"),
 240                                                                   GTK_TYPE_ATTACH_OPTIONS, GTK_EXPAND | GTK_FILL,
 241                                                                   G_PARAM_READWRITE));
 242   gtk_container_class_install_child_property (container_class,
 243                                               CHILD_PROP_X_PADDING,
 244                                               g_param_spec_uint ("x_padding",
 245                                                                  P_("Horizontal padding"),
 246                                                                  P_("Extra space to put between the child and its left and right neighbors, in pixels"),
 247                                                                  0, 65535, 0,
 248                                                                  G_PARAM_READWRITE));
 249   gtk_container_class_install_child_property (container_class,
 250                                               CHILD_PROP_Y_PADDING,
 251                                               g_param_spec_uint ("y_padding",
 252                                                                  P_("Vertical padding"),
 253                                                                  P_("Extra space to put between the child and its upper and lower neighbors, in pixels"),
 254                                                                  0, 65535, 0,
 255                                                                  G_PARAM_READWRITE));
 256 }
 257
 258 static GType
 259 gtk_table_child_type (GtkContainer   *container)
 260 {
 261   return GTK_TYPE_WIDGET;
 262 }
 263
 264 static void
 265 gtk_table_get_property (GObject      *object,
 266                         guint         prop_id,
 267                         GValue       *value,
 268                         GParamSpec   *pspec)
 269 {
 270   GtkTable *table;
 271
 272   table = GTK_TABLE (object);
 273
 274   switch (prop_id)
 275     {
 276     case PROP_N_ROWS:
 277       g_value_set_uint (value, table->nrows);
 278       break;
 279     case PROP_N_COLUMNS:
 280       g_value_set_uint (value, table->ncols);
 281       break;
 282     case PROP_ROW_SPACING:
 283       g_value_set_uint (value, table->row_spacing);
 284       break;
 285     case PROP_COLUMN_SPACING:
 286       g_value_set_uint (value, table->column_spacing);
 287       break;
 288     case PROP_HOMOGENEOUS:
 289       g_value_set_boolean (value, table->homogeneous);
 290       break;
 291     default:
 292       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 293       break;
 294     }
 295 }
 296
 297 static void
 298 gtk_table_set_property (GObject      *object,
 299                         guint         prop_id,
 300                         const GValue *value,
 301                         GParamSpec   *pspec)
 302 {
 303   GtkTable *table;
 304
 305   table = GTK_TABLE (object);
 306
 307   switch (prop_id)
 308     {
 309     case PROP_N_ROWS:
 310       gtk_table_resize (table, g_value_get_uint (value), table->ncols);
 311       break;
 312     case PROP_N_COLUMNS:
 313       gtk_table_resize (table, table->nrows, g_value_get_uint (value));
 314       break;
 315     case PROP_ROW_SPACING:
 316       gtk_table_set_row_spacings (table, g_value_get_uint (value));
 317       break;
 318     case PROP_COLUMN_SPACING:
 319       gtk_table_set_col_spacings (table, g_value_get_uint (value));
 320       break;
 321     case PROP_HOMOGENEOUS:
 322       gtk_table_set_homogeneous (table, g_value_get_boolean (value));
 323       break;
 324     default:
 325       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 326       break;
 327     }
 328 }
 329
 330 static void
 331 gtk_table_set_child_property (GtkContainer    *container,
 332                               GtkWidget       *child,
 333                               guint            property_id,
 334                               const GValue    *value,
 335                               GParamSpec      *pspec)
 336 {
 337   GtkTable *table = GTK_TABLE (container);
 338   GtkTableChild *table_child;
 339   GList *list;
 340
 341   table_child = NULL;
 342   for (list = table->children; list; list = list->next)
 343     {
 344       table_child = list->data;
 345
 346       if (table_child->widget == child)
 347         break;
 348     }
 349   if (!list)
 350     {
 351       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 352       return;
 353     }
 354
 355   switch (property_id)
 356     {
 357     case CHILD_PROP_LEFT_ATTACH:
 358       table_child->left_attach = g_value_get_uint (value);
 359       if (table_child->right_attach <= table_child->left_attach)
 360         table_child->right_attach = table_child->left_attach + 1;
 361       if (table_child->right_attach >= table->ncols)
 362         gtk_table_resize (table, table->nrows, table_child->right_attach);
 363       break;
 364     case CHILD_PROP_RIGHT_ATTACH:
 365       table_child->right_attach = g_value_get_uint (value);
 366       if (table_child->right_attach <= table_child->left_attach)
 367         table_child->left_attach = table_child->right_attach - 1;
 368       if (table_child->right_attach >= table->ncols)
 369         gtk_table_resize (table, table->nrows, table_child->right_attach);
 370       break;
 371     case CHILD_PROP_TOP_ATTACH:
 372       table_child->top_attach = g_value_get_uint (value);
 373       if (table_child->bottom_attach <= table_child->top_attach)
 374         table_child->bottom_attach = table_child->top_attach + 1;
 375       if (table_child->bottom_attach >= table->nrows)
 376         gtk_table_resize (table, table_child->bottom_attach, table->ncols);
 377       break;
 378     case CHILD_PROP_BOTTOM_ATTACH:
 379       table_child->bottom_attach = g_value_get_uint (value);
 380       if (table_child->bottom_attach <= table_child->top_attach)
 381         table_child->top_attach = table_child->bottom_attach - 1;
 382       if (table_child->bottom_attach >= table->nrows)
 383         gtk_table_resize (table, table_child->bottom_attach, table->ncols);
 384       break;
 385     case CHILD_PROP_X_OPTIONS:
 386       table_child->xexpand = (g_value_get_flags (value) & GTK_EXPAND) != 0;
 387       table_child->xshrink = (g_value_get_flags (value) & GTK_SHRINK) != 0;
 388       table_child->xfill = (g_value_get_flags (value) & GTK_FILL) != 0;
 389       break;
 390     case CHILD_PROP_Y_OPTIONS:
 391       table_child->yexpand = (g_value_get_flags (value) & GTK_EXPAND) != 0;
 392       table_child->yshrink = (g_value_get_flags (value) & GTK_SHRINK) != 0;
 393       table_child->yfill = (g_value_get_flags (value) & GTK_FILL) != 0;
 394       break;
 395     case CHILD_PROP_X_PADDING:
 396       table_child->xpadding = g_value_get_uint (value);
 397       break;
 398     case CHILD_PROP_Y_PADDING:
 399       table_child->ypadding = g_value_get_uint (value);
 400       break;
 401     default:
 402       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 403       break;
 404     }
 405   if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (table))
 406     gtk_widget_queue_resize (child);
 407 }
 408
 409 static void
 410 gtk_table_get_child_property (GtkContainer    *container,
 411                               GtkWidget       *child,
 412                               guint            property_id,
 413                               GValue          *value,
 414                               GParamSpec      *pspec)
 415 {
 416   GtkTable *table = GTK_TABLE (container);
 417   GtkTableChild *table_child;
 418   GList *list;
 419
 420   table_child = NULL;
 421   for (list = table->children; list; list = list->next)
 422     {
 423       table_child = list->data;
 424
 425       if (table_child->widget == child)
 426         break;
 427     }
 428   if (!list)
 429     {
 430       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 431       return;
 432     }
 433
 434   switch (property_id)
 435     {
 436     case CHILD_PROP_LEFT_ATTACH:
 437       g_value_set_uint (value, table_child->left_attach);
 438       break;
 439     case CHILD_PROP_RIGHT_ATTACH:
 440       g_value_set_uint (value, table_child->right_attach);
 441       break;
 442     case CHILD_PROP_TOP_ATTACH:
 443       g_value_set_uint (value, table_child->top_attach);
 444       break;
 445     case CHILD_PROP_BOTTOM_ATTACH:
 446       g_value_set_uint (value, table_child->bottom_attach);
 447       break;
 448     case CHILD_PROP_X_OPTIONS:
 449       g_value_set_flags (value, (table_child->xexpand * GTK_EXPAND |
 450                                  table_child->xshrink * GTK_SHRINK |
 451                                  table_child->xfill * GTK_FILL));
 452       break;
 453     case CHILD_PROP_Y_OPTIONS:
 454       g_value_set_flags (value, (table_child->yexpand * GTK_EXPAND |
 455                                  table_child->yshrink * GTK_SHRINK |
 456                                  table_child->yfill * GTK_FILL));
 457       break;
 458     case CHILD_PROP_X_PADDING:
 459       g_value_set_uint (value, table_child->xpadding);
 460       break;
 461     case CHILD_PROP_Y_PADDING:
 462       g_value_set_uint (value, table_child->ypadding);
 463       break;
 464     default:
 465       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 466       break;
 467     }
 468 }
 469
 470 static void
 471 gtk_table_init (GtkTable *table)
 472 {
 473   GTK_WIDGET_SET_FLAGS (table, GTK_NO_WINDOW);
 474   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (table), FALSE);
 475
 476   table->children = NULL;
 477   table->rows = NULL;
 478   table->cols = NULL;
 479   table->nrows = 0;
 480   table->ncols = 0;
 481   table->column_spacing = 0;
 482   table->row_spacing = 0;
 483   table->homogeneous = FALSE;
 484
 485   gtk_table_resize (table, 1, 1);
 486 }
 487
 488 GtkWidget*
 489 gtk_table_new (guint    rows,
 490                guint    columns,
 491                gboolean homogeneous)
 492 {
 493   GtkTable *table;
 494
 495   if (rows == 0)
 496     rows = 1;
 497   if (columns == 0)
 498     columns = 1;
 499
 500   table = g_object_new (GTK_TYPE_TABLE, NULL);
 501
 502   table->homogeneous = (homogeneous ? TRUE : FALSE);
 503
 504   gtk_table_resize (table, rows, columns);
 505
 506   return GTK_WIDGET (table);
 507 }
 508
 509 void
 510 gtk_table_resize (GtkTable *table,
 511                   guint     n_rows,
 512                   guint     n_cols)
 513 {
 514   g_return_if_fail (GTK_IS_TABLE (table));
 515   g_return_if_fail (n_rows > 0 && n_rows < 65536);
 516   g_return_if_fail (n_cols > 0 && n_cols < 65536);
 517
 518   n_rows = MAX (n_rows, 1);
 519   n_cols = MAX (n_cols, 1);
 520
 521   if (n_rows != table->nrows ||
 522       n_cols != table->ncols)
 523     {
 524       GList *list;
 525
 526       for (list = table->children; list; list = list->next)
 527         {
 528           GtkTableChild *child;
 529
 530           child = list->data;
 531
 532           n_rows = MAX (n_rows, child->bottom_attach);
 533           n_cols = MAX (n_cols, child->right_attach);
 534         }
 535
 536       if (n_rows != table->nrows)
 537         {
 538           guint i;
 539
 540           i = table->nrows;
 541           table->nrows = n_rows;
 542           table->rows = g_realloc (table->rows, table->nrows * sizeof (GtkTableRowCol));
 543
 544           for (; i < table->nrows; i++)
 545             {
 546               table->rows[i].requisition = 0;
 547               table->rows[i].allocation = 0;
 548               table->rows[i].spacing = table->row_spacing;
 549               table->rows[i].need_expand = 0;
 550               table->rows[i].need_shrink = 0;
 551               table->rows[i].expand = 0;
 552               table->rows[i].shrink = 0;
 553             }
 554
 555           g_object_notify (G_OBJECT (table), "n_rows");
 556         }
 557
 558       if (n_cols != table->ncols)
 559         {
 560           guint i;
 561
 562           i = table->ncols;
 563           table->ncols = n_cols;
 564           table->cols = g_realloc (table->cols, table->ncols * sizeof (GtkTableRowCol));
 565
 566           for (; i < table->ncols; i++)
 567             {
 568               table->cols[i].requisition = 0;
 569               table->cols[i].allocation = 0;
 570               table->cols[i].spacing = table->column_spacing;
 571               table->cols[i].need_expand = 0;
 572               table->cols[i].need_shrink = 0;
 573               table->cols[i].expand = 0;
 574               table->cols[i].shrink = 0;
 575             }
 576
 577           g_object_notify (G_OBJECT (table), "n_columns");
 578         }
 579     }
 580 }
 581
 582 void
 583 gtk_table_attach (GtkTable        *table,
 584                   GtkWidget       *child,
 585                   guint            left_attach,
 586                   guint            right_attach,
 587                   guint            top_attach,
 588                   guint            bottom_attach,
 589                   GtkAttachOptions xoptions,
 590                   GtkAttachOptions yoptions,
 591                   guint            xpadding,
 592                   guint            ypadding)
 593 {
 594   GtkTableChild *table_child;
 595
 596   g_return_if_fail (GTK_IS_TABLE (table));
 597   g_return_if_fail (GTK_IS_WIDGET (child));
 598   g_return_if_fail (child->parent == NULL);
 599
 600   /* g_return_if_fail (left_attach >= 0); */
 601   g_return_if_fail (left_attach < right_attach);
 602   /* g_return_if_fail (top_attach >= 0); */
 603   g_return_if_fail (top_attach < bottom_attach);
 604
 605   if (right_attach >= table->ncols)
 606     gtk_table_resize (table, table->nrows, right_attach);
 607
 608   if (bottom_attach >= table->nrows)
 609     gtk_table_resize (table, bottom_attach, table->ncols);
 610
 611   table_child = g_new (GtkTableChild, 1);
 612   table_child->widget = child;
 613   table_child->left_attach = left_attach;
 614   table_child->right_attach = right_attach;
 615   table_child->top_attach = top_attach;
 616   table_child->bottom_attach = bottom_attach;
 617   table_child->xexpand = (xoptions & GTK_EXPAND) != 0;
 618   table_child->xshrink = (xoptions & GTK_SHRINK) != 0;
 619   table_child->xfill = (xoptions & GTK_FILL) != 0;
 620   table_child->xpadding = xpadding;
 621   table_child->yexpand = (yoptions & GTK_EXPAND) != 0;
 622   table_child->yshrink = (yoptions & GTK_SHRINK) != 0;
 623   table_child->yfill = (yoptions & GTK_FILL) != 0;
 624   table_child->ypadding = ypadding;
 625
 626   table->children = g_list_prepend (table->children, table_child);
 627
 628   gtk_widget_set_parent (child, GTK_WIDGET (table));
 629 }
 630
 631 void
 632 gtk_table_attach_defaults (GtkTable  *table,
 633                            GtkWidget *widget,
 634                            guint      left_attach,
 635                            guint      right_attach,
 636                            guint      top_attach,
 637                            guint      bottom_attach)
 638 {
 639   gtk_table_attach (table, widget,
 640                     left_attach, right_attach,
 641                     top_attach, bottom_attach,
 642                     GTK_EXPAND | GTK_FILL,
 643                     GTK_EXPAND | GTK_FILL,
 644                     0, 0);
 645 }
 646
 647 void
 648 gtk_table_set_row_spacing (GtkTable *table,
 649                            guint     row,
 650                            guint     spacing)
 651 {
 652   g_return_if_fail (GTK_IS_TABLE (table));
 653   g_return_if_fail (row < table->nrows);
 654
 655   if (table->rows[row].spacing != spacing)
 656     {
 657       table->rows[row].spacing = spacing;
 658
 659       if (GTK_WIDGET_VISIBLE (table))
 660         gtk_widget_queue_resize (GTK_WIDGET (table));
 661     }
 662 }
 663
 664 /**
 665  * gtk_table_get_row_spacing:
 666  * @table: a #GtkTable
 667  * @row: a row in the table, 0 indicates the first row
 668  *
 669  * Gets the amount of space between row @row, and
 670  * row @row + 1. See gtk_table_set_row_spacing().
 671  *
 672  * Return value: the row spacing
 673  **/
 674 guint
 675 gtk_table_get_row_spacing (GtkTable *table,
 676                            guint     row)
 677 {
 678   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 679   g_return_val_if_fail (row < table->nrows - 1, 0);
 680
 681   return table->rows[row].spacing;
 682 }
 683
 684 void
 685 gtk_table_set_col_spacing (GtkTable *table,
 686                            guint     column,
 687                            guint     spacing)
 688 {
 689   g_return_if_fail (GTK_IS_TABLE (table));
 690   g_return_if_fail (column < table->ncols);
 691
 692   if (table->cols[column].spacing != spacing)
 693     {
 694       table->cols[column].spacing = spacing;
 695
 696       if (GTK_WIDGET_VISIBLE (table))
 697         gtk_widget_queue_resize (GTK_WIDGET (table));
 698     }
 699 }
 700
 701 /**
 702  * gtk_table_get_col_spacing:
 703  * @table: a #GtkTable
 704  * @column: a column in the table, 0 indicates the first column
 705  *
 706  * Gets the amount of space between column @col, and
 707  * column @col + 1. See gtk_table_set_col_spacing().
 708  *
 709  * Return value: the column spacing
 710  **/
 711 guint
 712 gtk_table_get_col_spacing (GtkTable *table,
 713                            guint     column)
 714 {
 715   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 716   g_return_val_if_fail (column < table->ncols, 0);
 717
 718   return table->cols[column].spacing;
 719 }
 720
 721 void
 722 gtk_table_set_row_spacings (GtkTable *table,
 723                             guint     spacing)
 724 {
 725   guint row;
 726
 727   g_return_if_fail (GTK_IS_TABLE (table));
 728
 729   table->row_spacing = spacing;
 730   for (row = 0; row < table->nrows; row++)
 731     table->rows[row].spacing = spacing;
 732
 733   if (GTK_WIDGET_VISIBLE (table))
 734     gtk_widget_queue_resize (GTK_WIDGET (table));
 735
 736   g_object_notify (G_OBJECT (table), "row_spacing");
 737 }
 738
 739 /**
 740  * gtk_table_get_default_row_spacing:
 741  * @table: a #GtkTable
 742  *
 743  * Gets the default row spacing for the table. This is
 744  * the spacing that will be used for newly added rows.
 745  * (See gtk_table_set_row_spacings())
 746  *
 747  * Returns value: the default row spacing
 748  **/
 749 guint
 750 gtk_table_get_default_row_spacing (GtkTable *table)
 751 {
 752   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 753
 754   return table->row_spacing;
 755 }
 756
 757 void
 758 gtk_table_set_col_spacings (GtkTable *table,
 759                             guint     spacing)
 760 {
 761   guint col;
 762
 763   g_return_if_fail (GTK_IS_TABLE (table));
 764
 765   table->column_spacing = spacing;
 766   for (col = 0; col < table->ncols; col++)
 767     table->cols[col].spacing = spacing;
 768
 769   if (GTK_WIDGET_VISIBLE (table))
 770     gtk_widget_queue_resize (GTK_WIDGET (table));
 771
 772   g_object_notify (G_OBJECT (table), "column_spacing");
 773 }
 774
 775 /**
 776  * gtk_table_get_default_col_spacing:
 777  * @table: a #GtkTable
 778  *
 779  * Gets the default column spacing for the table. This is
 780  * the spacing that will be used for newly added columns.
 781  * (See gtk_table_set_col_spacings())
 782  *
 783  * Returns value: the default column spacing
 784  **/
 785 guint
 786 gtk_table_get_default_col_spacing (GtkTable *table)
 787 {
 788   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 789
 790   return table->column_spacing;
 791 }
 792
 793 void
 794 gtk_table_set_homogeneous (GtkTable *table,
 795                            gboolean  homogeneous)
 796 {
 797   g_return_if_fail (GTK_IS_TABLE (table));
 798
 799   homogeneous = (homogeneous != 0);
 800   if (homogeneous != table->homogeneous)
 801     {
 802       table->homogeneous = homogeneous;
 803
 804       if (GTK_WIDGET_VISIBLE (table))
 805         gtk_widget_queue_resize (GTK_WIDGET (table));
 806
 807       g_object_notify (G_OBJECT (table), "homogeneous");
 808     }
 809 }
 810
 811 /**
 812  * gtk_table_get_homogeneous:
 813  * @table: a #GtkTable
 814  *
 815  * Returns whether the table cells are all constrained to the same
 816  * width and height. (See gtk_table_set_homogenous ())
 817  *
 818  * Return value: %TRUE if the cells are all constrained to the same size
 819  **/
 820 gboolean
 821 gtk_table_get_homogeneous (GtkTable *table)
 822 {
 823   g_return_val_if_fail (GTK_IS_TABLE (table), FALSE);
 824
 825   return table->homogeneous;
 826 }
 827
 828 static void
 829 gtk_table_finalize (GObject *object)
 830 {
 831   GtkTable *table;
 832
 833   g_return_if_fail (GTK_IS_TABLE (object));
 834
 835   table = GTK_TABLE (object);
 836
 837   g_free (table->rows);
 838   g_free (table->cols);
 839
 840   G_OBJECT_CLASS (parent_class)->finalize (object);
 841 }
 842
 843 static void
 844 gtk_table_size_request (GtkWidget      *widget,
 845                         GtkRequisition *requisition)
 846 {
 847   GtkTable *table;
 848   gint row, col;
 849
 850   g_return_if_fail (GTK_IS_TABLE (widget));
 851   g_return_if_fail (requisition != NULL);
 852
 853   table = GTK_TABLE (widget);
 854
 855   requisition->width = 0;
 856   requisition->height = 0;
 857
 858   gtk_table_size_request_init (table);
 859   gtk_table_size_request_pass1 (table);
 860   gtk_table_size_request_pass2 (table);
 861   gtk_table_size_request_pass3 (table);
 862   gtk_table_size_request_pass2 (table);
 863
 864   for (col = 0; col < table->ncols; col++)
 865     requisition->width += table->cols[col].requisition;
 866   for (col = 0; col + 1 < table->ncols; col++)
 867     requisition->width += table->cols[col].spacing;
 868
 869   for (row = 0; row < table->nrows; row++)
 870     requisition->height += table->rows[row].requisition;
 871   for (row = 0; row + 1 < table->nrows; row++)
 872     requisition->height += table->rows[row].spacing;
 873
 874   requisition->width += GTK_CONTAINER (table)->border_width * 2;
 875   requisition->height += GTK_CONTAINER (table)->border_width * 2;
 876 }
 877
 878 static void
 879 gtk_table_size_allocate (GtkWidget     *widget,
 880                          GtkAllocation *allocation)
 881 {
 882   GtkTable *table;
 883
 884   g_return_if_fail (GTK_IS_TABLE (widget));
 885   g_return_if_fail (allocation != NULL);
 886
 887   widget->allocation = *allocation;
 888   table = GTK_TABLE (widget);
 889
 890   gtk_table_size_allocate_init (table);
 891   gtk_table_size_allocate_pass1 (table);
 892   gtk_table_size_allocate_pass2 (table);
 893 }
 894
 895 static void
 896 gtk_table_add (GtkContainer *container,
 897                GtkWidget    *widget)
 898 {
 899   g_return_if_fail (GTK_IS_TABLE (container));
 900   g_return_if_fail (widget != NULL);
 901
 902   gtk_table_attach_defaults (GTK_TABLE (container), widget, 0, 1, 0, 1);
 903 }
 904
 905 static void
 906 gtk_table_remove (GtkContainer *container,
 907                   GtkWidget    *widget)
 908 {
 909   GtkTable *table;
 910   GtkTableChild *child;
 911   GList *children;
 912
 913   g_return_if_fail (GTK_IS_TABLE (container));
 914   g_return_if_fail (widget != NULL);
 915
 916   table = GTK_TABLE (container);
 917   children = table->children;
 918
 919   while (children)
 920     {
 921       child = children->data;
 922       children = children->next;
 923
 924       if (child->widget == widget)
 925         {
 926           gboolean was_visible = GTK_WIDGET_VISIBLE (widget);
 927
 928           gtk_widget_unparent (widget);
 929
 930           table->children = g_list_remove (table->children, child);
 931           g_free (child);
 932
 933           if (was_visible && GTK_WIDGET_VISIBLE (container))
 934             gtk_widget_queue_resize (GTK_WIDGET (container));
 935           break;
 936         }
 937     }
 938 }
 939
 940 static void
 941 gtk_table_forall (GtkContainer *container,
 942                   gboolean      include_internals,
 943                   GtkCallback   callback,
 944                   gpointer      callback_data)
 945 {
 946   GtkTable *table;
 947   GtkTableChild *child;
 948   GList *children;
 949
 950   g_return_if_fail (GTK_IS_TABLE (container));
 951   g_return_if_fail (callback != NULL);
 952
 953   table = GTK_TABLE (container);
 954   children = table->children;
 955
 956   while (children)
 957     {
 958       child = children->data;
 959       children = children->next;
 960
 961       (* callback) (child->widget, callback_data);
 962     }
 963 }
 964
 965 static void
 966 gtk_table_size_request_init (GtkTable *table)
 967 {
 968   GtkTableChild *child;
 969   GList *children;
 970   gint row, col;
 971
 972   for (row = 0; row < table->nrows; row++)
 973     {
 974       table->rows[row].requisition = 0;
 975       table->rows[row].expand = FALSE;
 976     }
 977   for (col = 0; col < table->ncols; col++)
 978     {
 979       table->cols[col].requisition = 0;
 980       table->cols[col].expand = FALSE;
 981     }
 982
 983   children = table->children;
 984   while (children)
 985     {
 986       child = children->data;
 987       children = children->next;
 988
 989       if (GTK_WIDGET_VISIBLE (child->widget))
 990         gtk_widget_size_request (child->widget, NULL);
 991
 992       if (child->left_attach == (child->right_attach - 1) && child->xexpand)
 993         table->cols[child->left_attach].expand = TRUE;
 994
 995       if (child->top_attach == (child->bottom_attach - 1) && child->yexpand)
 996         table->rows[child->top_attach].expand = TRUE;
 997     }
 998 }
 999
1000 static void
1001 gtk_table_size_request_pass1 (GtkTable *table)
1002 {
1003   GtkTableChild *child;
1004   GList *children;
1005   gint width;
1006   gint height;
1007
1008   children = table->children;
1009   while (children)
1010     {
1011       child = children->data;
1012       children = children->next;
1013
1014       if (GTK_WIDGET_VISIBLE (child->widget))
1015         {
1016           GtkRequisition child_requisition;
1017           gtk_widget_get_child_requisition (child->widget, &child_requisition);
1018
1019           /* Child spans a single column.
1020            */
1021           if (child->left_attach == (child->right_attach - 1))
1022             {
1023               width = child_requisition.width + child->xpadding * 2;
1024               table->cols[child->left_attach].requisition = MAX (table->cols[child->left_attach].requisition, width);
1025             }
1026
1027           /* Child spans a single row.
1028            */
1029           if (child->top_attach == (child->bottom_attach - 1))
1030             {
1031               height = child_requisition.height + child->ypadding * 2;
1032               table->rows[child->top_attach].requisition = MAX (table->rows[child->top_attach].requisition, height);
1033             }
1034         }
1035     }
1036 }
1037
1038 static void
1039 gtk_table_size_request_pass2 (GtkTable *table)
1040 {
1041   gint max_width;
1042   gint max_height;
1043   gint row, col;
1044
1045   if (table->homogeneous)
1046     {
1047       max_width = 0;
1048       max_height = 0;
1049
1050       for (col = 0; col < table->ncols; col++)
1051         max_width = MAX (max_width, table->cols[col].requisition);
1052       for (row = 0; row < table->nrows; row++)
1053         max_height = MAX (max_height, table->rows[row].requisition);
1054
1055       for (col = 0; col < table->ncols; col++)
1056         table->cols[col].requisition = max_width;
1057       for (row = 0; row < table->nrows; row++)
1058         table->rows[row].requisition = max_height;
1059     }
1060 }
1061
1062 static void
1063 gtk_table_size_request_pass3 (GtkTable *table)
1064 {
1065   GtkTableChild *child;
1066   GList *children;
1067   gint width, height;
1068   gint row, col;
1069   gint extra;
1070
1071   children = table->children;
1072   while (children)
1073     {
1074       child = children->data;
1075       children = children->next;
1076
1077       if (GTK_WIDGET_VISIBLE (child->widget))
1078         {
1079           /* Child spans multiple columns.
1080            */
1081           if (child->left_attach != (child->right_attach - 1))
1082             {
1083               GtkRequisition child_requisition;
1084
1085               gtk_widget_get_child_requisition (child->widget, &child_requisition);
1086
1087               /* Check and see if there is already enough space
1088                *  for the child.
1089                */
1090               width = 0;
1091               for (col = child->left_attach; col < child->right_attach; col++)
1092                 {
1093                   width += table->cols[col].requisition;
1094                   if ((col + 1) < child->right_attach)
1095                     width += table->cols[col].spacing;
1096                 }
1097
1098               /* If we need to request more space for this child to fill
1099                *  its requisition, then divide up the needed space amongst the
1100                *  columns it spans, favoring expandable columns if any.
1101                */
1102               if (width < child_requisition.width + child->xpadding * 2)
1103                 {
1104                   gint n_expand = 0;
1105                   gboolean force_expand = FALSE;
1106
1107                   width = child_requisition.width + child->xpadding * 2 - width;
1108
1109                   for (col = child->left_attach; col < child->right_attach; col++)
1110                     if (table->cols[col].expand)
1111                       n_expand++;
1112
1113                   if (n_expand == 0)
1114                     {
1115                       n_expand = (child->right_attach - child->left_attach);
1116                       force_expand = TRUE;
1117                     }
1118
1119                   for (col = child->left_attach; col < child->right_attach; col++)
1120                     if (force_expand || table->cols[col].expand)
1121                       {
1122                         extra = width / n_expand;
1123                         table->cols[col].requisition += extra;
1124                         width -= extra;
1125                         n_expand--;
1126                       }
1127                 }
1128             }
1129
1130           /* Child spans multiple rows.
1131            */
1132           if (child->top_attach != (child->bottom_attach - 1))
1133             {
1134               GtkRequisition child_requisition;
1135
1136               gtk_widget_get_child_requisition (child->widget, &child_requisition);
1137
1138               /* Check and see if there is already enough space
1139                *  for the child.
1140                */
1141               height = 0;
1142               for (row = child->top_attach; row < child->bottom_attach; row++)
1143                 {
1144                   height += table->rows[row].requisition;
1145                   if ((row + 1) < child->bottom_attach)
1146                     height += table->rows[row].spacing;
1147                 }
1148
1149               /* If we need to request more space for this child to fill
1150                *  its requisition, then divide up the needed space amongst the
1151                *  rows it spans, favoring expandable rows if any.
1152                */
1153               if (height < child_requisition.height + child->ypadding * 2)
1154                 {
1155                   gint n_expand = 0;
1156                   gboolean force_expand = FALSE;
1157
1158                   height = child_requisition.height + child->ypadding * 2 - height;
1159
1160                   for (row = child->top_attach; row < child->bottom_attach; row++)
1161                     {
1162                       if (table->rows[row].expand)
1163                         n_expand++;
1164                     }
1165
1166                   if (n_expand == 0)
1167                     {
1168                       n_expand = (child->bottom_attach - child->top_attach);
1169                       force_expand = TRUE;
1170                     }
1171
1172                   for (row = child->top_attach; row < child->bottom_attach; row++)
1173                     if (force_expand || table->rows[row].expand)
1174                       {
1175                         extra = height / n_expand;
1176                         table->rows[row].requisition += extra;
1177                         height -= extra;
1178                         n_expand--;
1179                       }
1180                 }
1181             }
1182         }
1183     }
1184 }
1185
1186 static void
1187 gtk_table_size_allocate_init (GtkTable *table)
1188 {
1189   GtkTableChild *child;
1190   GList *children;
1191   gint row, col;
1192   gint has_expand;
1193   gint has_shrink;
1194
1195   /* Initialize the rows and cols.
1196    *  By default, rows and cols do not expand and do shrink.
1197    *  Those values are modified by the children that occupy
1198    *  the rows and cols.
1199    */
1200   for (col = 0; col < table->ncols; col++)
1201     {
1202       table->cols[col].allocation = table->cols[col].requisition;
1203       table->cols[col].need_expand = FALSE;
1204       table->cols[col].need_shrink = TRUE;
1205       table->cols[col].expand = FALSE;
1206       table->cols[col].shrink = TRUE;
1207       table->cols[col].empty = TRUE;
1208     }
1209   for (row = 0; row < table->nrows; row++)
1210     {
1211       table->rows[row].allocation = table->rows[row].requisition;
1212       table->rows[row].need_expand = FALSE;
1213       table->rows[row].need_shrink = TRUE;
1214       table->rows[row].expand = FALSE;
1215       table->rows[row].shrink = TRUE;
1216       table->rows[row].empty = TRUE;
1217     }
1218
1219   /* Loop over all the children and adjust the row and col values
1220    *  based on whether the children want to be allowed to expand
1221    *  or shrink. This loop handles children that occupy a single
1222    *  row or column.
1223    */
1224   children = table->children;
1225   while (children)
1226     {
1227       child = children->data;
1228       children = children->next;
1229
1230       if (GTK_WIDGET_VISIBLE (child->widget))
1231         {
1232           if (child->left_attach == (child->right_attach - 1))
1233             {
1234               if (child->xexpand)
1235                 table->cols[child->left_attach].expand = TRUE;
1236
1237               if (!child->xshrink)
1238                 table->cols[child->left_attach].shrink = FALSE;
1239
1240               table->cols[child->left_attach].empty = FALSE;
1241             }
1242
1243           if (child->top_attach == (child->bottom_attach - 1))
1244             {
1245               if (child->yexpand)
1246                 table->rows[child->top_attach].expand = TRUE;
1247
1248               if (!child->yshrink)
1249                 table->rows[child->top_attach].shrink = FALSE;
1250
1251               table->rows[child->top_attach].empty = FALSE;
1252             }
1253         }
1254     }
1255
1256   /* Loop over all the children again and this time handle children
1257    *  which span multiple rows or columns.
1258    */
1259   children = table->children;
1260   while (children)
1261     {
1262       child = children->data;
1263       children = children->next;
1264
1265       if (GTK_WIDGET_VISIBLE (child->widget))
1266         {
1267           if (child->left_attach != (child->right_attach - 1))
1268             {
1269               for (col = child->left_attach; col < child->right_attach; col++)
1270                 table->cols[col].empty = FALSE;
1271
1272               if (child->xexpand)
1273                 {
1274                   has_expand = FALSE;
1275                   for (col = child->left_attach; col < child->right_attach; col++)
1276                     if (table->cols[col].expand)
1277                       {
1278                         has_expand = TRUE;
1279                         break;
1280                       }
1281
1282                   if (!has_expand)
1283                     for (col = child->left_attach; col < child->right_attach; col++)
1284                       table->cols[col].need_expand = TRUE;
1285                 }
1286
1287               if (!child->xshrink)
1288                 {
1289                   has_shrink = TRUE;
1290                   for (col = child->left_attach; col < child->right_attach; col++)
1291                     if (!table->cols[col].shrink)
1292                       {
1293                         has_shrink = FALSE;
1294                         break;
1295                       }
1296
1297                   if (has_shrink)
1298                     for (col = child->left_attach; col < child->right_attach; col++)
1299                       table->cols[col].need_shrink = FALSE;
1300                 }
1301             }
1302
1303           if (child->top_attach != (child->bottom_attach - 1))
1304             {
1305               for (row = child->top_attach; row < child->bottom_attach; row++)
1306                 table->rows[row].empty = FALSE;
1307
1308               if (child->yexpand)
1309                 {
1310                   has_expand = FALSE;
1311                   for (row = child->top_attach; row < child->bottom_attach; row++)
1312                     if (table->rows[row].expand)
1313                       {
1314                         has_expand = TRUE;
1315                         break;
1316                       }
1317
1318                   if (!has_expand)
1319                     for (row = child->top_attach; row < child->bottom_attach; row++)
1320                       table->rows[row].need_expand = TRUE;
1321                 }
1322
1323               if (!child->yshrink)
1324                 {
1325                   has_shrink = TRUE;
1326                   for (row = child->top_attach; row < child->bottom_attach; row++)
1327                     if (!table->rows[row].shrink)
1328                       {
1329                         has_shrink = FALSE;
1330                         break;
1331                       }
1332
1333                   if (has_shrink)
1334                     for (row = child->top_attach; row < child->bottom_attach; row++)
1335                       table->rows[row].need_shrink = FALSE;
1336                 }
1337             }
1338         }
1339     }
1340
1341   /* Loop over the columns and set the expand and shrink values
1342    *  if the column can be expanded or shrunk.
1343    */
1344   for (col = 0; col < table->ncols; col++)
1345     {
1346       if (table->cols[col].empty)
1347         {
1348           table->cols[col].expand = FALSE;
1349           table->cols[col].shrink = FALSE;
1350         }
1351       else
1352         {
1353           if (table->cols[col].need_expand)
1354             table->cols[col].expand = TRUE;
1355           if (!table->cols[col].need_shrink)
1356             table->cols[col].shrink = FALSE;
1357         }
1358     }
1359
1360   /* Loop over the rows and set the expand and shrink values
1361    *  if the row can be expanded or shrunk.
1362    */
1363   for (row = 0; row < table->nrows; row++)
1364     {
1365       if (table->rows[row].empty)
1366         {
1367           table->rows[row].expand = FALSE;
1368           table->rows[row].shrink = FALSE;
1369         }
1370       else
1371         {
1372           if (table->rows[row].need_expand)
1373             table->rows[row].expand = TRUE;
1374           if (!table->rows[row].need_shrink)
1375             table->rows[row].shrink = FALSE;
1376         }
1377     }
1378 }
1379
1380 static void
1381 gtk_table_size_allocate_pass1 (GtkTable *table)
1382 {
1383   gint real_width;
1384   gint real_height;
1385   gint width, height;
1386   gint row, col;
1387   gint nexpand;
1388   gint nshrink;
1389   gint extra;
1390
1391   /* If we were allocated more space than we requested
1392    *  then we have to expand any expandable rows and columns
1393    *  to fill in the extra space.
1394    */
1395
1396   real_width = GTK_WIDGET (table)->allocation.width - GTK_CONTAINER (table)->border_width * 2;
1397   real_height = GTK_WIDGET (table)->allocation.height - GTK_CONTAINER (table)->border_width * 2;
1398
1399   if (table->homogeneous)
1400     {
1401       if (!table->children)
1402         nexpand = 1;
1403       else
1404         {
1405           nexpand = 0;
1406           for (col = 0; col < table->ncols; col++)
1407             if (table->cols[col].expand)
1408               {
1409                 nexpand += 1;
1410                 break;
1411               }
1412         }
1413       if (nexpand)
1414         {
1415           width = real_width;
1416           for (col = 0; col + 1 < table->ncols; col++)
1417             width -= table->cols[col].spacing;
1418
1419           for (col = 0; col < table->ncols; col++)
1420             {
1421               extra = width / (table->ncols - col);
1422               table->cols[col].allocation = MAX (1, extra);
1423               width -= extra;
1424             }
1425         }
1426     }
1427   else
1428     {
1429       width = 0;
1430       nexpand = 0;
1431       nshrink = 0;
1432
1433       for (col = 0; col < table->ncols; col++)
1434         {
1435           width += table->cols[col].requisition;
1436           if (table->cols[col].expand)
1437             nexpand += 1;
1438           if (table->cols[col].shrink)
1439             nshrink += 1;
1440         }
1441       for (col = 0; col + 1 < table->ncols; col++)
1442         width += table->cols[col].spacing;
1443
1444       /* Check to see if we were allocated more width than we requested.
1445        */
1446       if ((width < real_width) && (nexpand >= 1))
1447         {
1448           width = real_width - width;
1449
1450           for (col = 0; col < table->ncols; col++)
1451             if (table->cols[col].expand)
1452               {
1453                 extra = width / nexpand;
1454                 table->cols[col].allocation += extra;
1455
1456                 width -= extra;
1457                 nexpand -= 1;
1458               }
1459         }
1460
1461       /* Check to see if we were allocated less width than we requested,
1462        * then shrink until we fit the size give.
1463        */
1464       if (width > real_width)
1465         {
1466           gint total_nshrink = nshrink;
1467
1468           extra = width - real_width;
1469           while (total_nshrink > 0 && extra > 0)
1470             {
1471               nshrink = total_nshrink;
1472               for (col = 0; col < table->ncols; col++)
1473                 if (table->cols[col].shrink)
1474                   {
1475                     gint allocation = table->cols[col].allocation;
1476
1477                     table->cols[col].allocation = MAX (1, (gint) table->cols[col].allocation - extra / nshrink);
1478                     extra -= allocation - table->cols[col].allocation;
1479                     nshrink -= 1;
1480                     if (table->cols[col].allocation < 2)
1481                       {
1482                         total_nshrink -= 1;
1483                         table->cols[col].shrink = FALSE;
1484                       }
1485                   }
1486             }
1487         }
1488     }
1489
1490   if (table->homogeneous)
1491     {
1492       if (!table->children)
1493         nexpand = 1;
1494       else
1495         {
1496           nexpand = 0;
1497           for (row = 0; row < table->nrows; row++)
1498             if (table->rows[row].expand)
1499               {
1500                 nexpand += 1;
1501                 break;
1502               }
1503         }
1504       if (nexpand)
1505         {
1506           height = real_height;
1507
1508           for (row = 0; row + 1 < table->nrows; row++)
1509             height -= table->rows[row].spacing;
1510
1511
1512           for (row = 0; row < table->nrows; row++)
1513             {
1514               extra = height / (table->nrows - row);
1515               table->rows[row].allocation = MAX (1, extra);
1516               height -= extra;
1517             }
1518         }
1519     }
1520   else
1521     {
1522       height = 0;
1523       nexpand = 0;
1524       nshrink = 0;
1525
1526       for (row = 0; row < table->nrows; row++)
1527         {
1528           height += table->rows[row].requisition;
1529           if (table->rows[row].expand)
1530             nexpand += 1;
1531           if (table->rows[row].shrink)
1532             nshrink += 1;
1533         }
1534       for (row = 0; row + 1 < table->nrows; row++)
1535         height += table->rows[row].spacing;
1536
1537       /* Check to see if we were allocated more height than we requested.
1538        */
1539       if ((height < real_height) && (nexpand >= 1))
1540         {
1541           height = real_height - height;
1542
1543           for (row = 0; row < table->nrows; row++)
1544             if (table->rows[row].expand)
1545               {
1546                 extra = height / nexpand;
1547                 table->rows[row].allocation += extra;
1548
1549                 height -= extra;
1550                 nexpand -= 1;
1551               }
1552         }
1553
1554       /* Check to see if we were allocated less height than we requested.
1555        * then shrink until we fit the size give.
1556        */
1557       if (height > real_height)
1558         {
1559           gint total_nshrink = nshrink;
1560
1561           extra = height - real_height;
1562           while (total_nshrink > 0 && extra > 0)
1563             {
1564               nshrink = total_nshrink;
1565               for (row = 0; row < table->nrows; row++)
1566                 if (table->rows[row].shrink)
1567                   {
1568                     gint allocation = table->rows[row].allocation;
1569
1570                     table->rows[row].allocation = MAX (1, (gint) table->rows[row].allocation - extra / nshrink);
1571                     extra -= allocation - table->rows[row].allocation;
1572                     nshrink -= 1;
1573                     if (table->rows[row].allocation < 2)
1574                       {
1575                         total_nshrink -= 1;
1576                         table->rows[row].shrink = FALSE;
1577                       }
1578                   }
1579             }
1580         }
1581     }
1582 }
1583
1584 static void
1585 gtk_table_size_allocate_pass2 (GtkTable *table)
1586 {
1587   GtkTableChild *child;
1588   GList *children;
1589   gint max_width;
1590   gint max_height;
1591   gint x, y;
1592   gint row, col;
1593   GtkAllocation allocation;
1594   GtkWidget *widget = GTK_WIDGET (table);
1595
1596   children = table->children;
1597   while (children)
1598     {
1599       child = children->data;
1600       children = children->next;
1601
1602       if (GTK_WIDGET_VISIBLE (child->widget))
1603         {
1604           GtkRequisition child_requisition;
1605           gtk_widget_get_child_requisition (child->widget, &child_requisition);
1606
1607           x = GTK_WIDGET (table)->allocation.x + GTK_CONTAINER (table)->border_width;
1608           y = GTK_WIDGET (table)->allocation.y + GTK_CONTAINER (table)->border_width;
1609           max_width = 0;
1610           max_height = 0;
1611
1612           for (col = 0; col < child->left_attach; col++)
1613             {
1614               x += table->cols[col].allocation;
1615               x += table->cols[col].spacing;
1616             }
1617
1618           for (col = child->left_attach; col < child->right_attach; col++)
1619             {
1620               max_width += table->cols[col].allocation;
1621               if ((col + 1) < child->right_attach)
1622                 max_width += table->cols[col].spacing;
1623             }
1624
1625           for (row = 0; row < child->top_attach; row++)
1626             {
1627               y += table->rows[row].allocation;
1628               y += table->rows[row].spacing;
1629             }
1630
1631           for (row = child->top_attach; row < child->bottom_attach; row++)
1632             {
1633               max_height += table->rows[row].allocation;
1634               if ((row + 1) < child->bottom_attach)
1635                 max_height += table->rows[row].spacing;
1636             }
1637
1638           if (child->xfill)
1639             {
1640               allocation.width = MAX (1, max_width - (gint)child->xpadding * 2);
1641               allocation.x = x + (max_width - allocation.width) / 2;
1642             }
1643           else
1644             {
1645               allocation.width = child_requisition.width;
1646               allocation.x = x + (max_width - allocation.width) / 2;
1647             }
1648
1649           if (child->yfill)
1650             {
1651               allocation.height = MAX (1, max_height - (gint)child->ypadding * 2);
1652               allocation.y = y + (max_height - allocation.height) / 2;
1653             }
1654           else
1655             {
1656               allocation.height = child_requisition.height;
1657               allocation.y = y + (max_height - allocation.height) / 2;
1658             }
1659
1660           if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
1661             allocation.x = widget->allocation.x + widget->allocation.width
1662               - (allocation.x - widget->allocation.x) - allocation.width;
1663
1664           gtk_widget_size_allocate (child->widget, &allocation);
1665         }
1666     }
1667 }