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 "gtkprivate.h"
  30 #include "gtkintl.h"
  31
  32
  33
  34 struct _GtkTablePrivate
  35 {
  36   GtkTableRowCol *cols;
  37   GtkTableRowCol *rows;
  38
  39   GList          *children;
  40
  41   guint16         column_spacing;
  42   guint16         ncols;
  43   guint16         nrows;
  44   guint16         row_spacing;
  45
  46   guint           homogeneous : 1;
  47 };
  48
  49 enum
  50 {
  51   PROP_0,
  52   PROP_N_ROWS,
  53   PROP_N_COLUMNS,
  54   PROP_COLUMN_SPACING,
  55   PROP_ROW_SPACING,
  56   PROP_HOMOGENEOUS
  57 };
  58
  59 enum
  60 {
  61   CHILD_PROP_0,
  62   CHILD_PROP_LEFT_ATTACH,
  63   CHILD_PROP_RIGHT_ATTACH,
  64   CHILD_PROP_TOP_ATTACH,
  65   CHILD_PROP_BOTTOM_ATTACH,
  66   CHILD_PROP_X_OPTIONS,
  67   CHILD_PROP_Y_OPTIONS,
  68   CHILD_PROP_X_PADDING,
  69   CHILD_PROP_Y_PADDING
  70 };
  71
  72
  73 static void gtk_table_finalize      (GObject        *object);
  74 static void gtk_table_size_request  (GtkWidget      *widget,
  75                                      GtkRequisition *requisition);
  76 static void gtk_table_size_allocate (GtkWidget      *widget,
  77                                      GtkAllocation  *allocation);
  78 static void gtk_table_add           (GtkContainer   *container,
  79                                      GtkWidget      *widget);
  80 static void gtk_table_remove        (GtkContainer   *container,
  81                                      GtkWidget      *widget);
  82 static void gtk_table_forall        (GtkContainer   *container,
  83                                      gboolean        include_internals,
  84                                      GtkCallback     callback,
  85                                      gpointer        callback_data);
  86 static void gtk_table_get_property  (GObject         *object,
  87                                      guint            prop_id,
  88                                      GValue          *value,
  89                                      GParamSpec      *pspec);
  90 static void gtk_table_set_property  (GObject         *object,
  91                                      guint            prop_id,
  92                                      const GValue    *value,
  93                                      GParamSpec      *pspec);
  94 static void gtk_table_set_child_property (GtkContainer    *container,
  95                                           GtkWidget       *child,
  96                                           guint            property_id,
  97                                           const GValue    *value,
  98                                           GParamSpec      *pspec);
  99 static void gtk_table_get_child_property (GtkContainer    *container,
 100                                           GtkWidget       *child,
 101                                           guint            property_id,
 102                                           GValue          *value,
 103                                           GParamSpec      *pspec);
 104 static GType gtk_table_child_type   (GtkContainer   *container);
 105
 106
 107 static void gtk_table_size_request_init  (GtkTable *table);
 108 static void gtk_table_size_request_pass1 (GtkTable *table);
 109 static void gtk_table_size_request_pass2 (GtkTable *table);
 110 static void gtk_table_size_request_pass3 (GtkTable *table);
 111
 112 static void gtk_table_size_allocate_init  (GtkTable *table);
 113 static void gtk_table_size_allocate_pass1 (GtkTable *table);
 114 static void gtk_table_size_allocate_pass2 (GtkTable *table);
 115
 116
 117 G_DEFINE_TYPE (GtkTable, gtk_table, GTK_TYPE_CONTAINER)
 118
 119 static void
 120 gtk_table_class_init (GtkTableClass *class)
 121 {
 122   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 123   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
 124   GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
 125
 126   gobject_class->finalize = gtk_table_finalize;
 127
 128   gobject_class->get_property = gtk_table_get_property;
 129   gobject_class->set_property = gtk_table_set_property;
 130
 131   widget_class->size_request = gtk_table_size_request;
 132   widget_class->size_allocate = gtk_table_size_allocate;
 133
 134   container_class->add = gtk_table_add;
 135   container_class->remove = gtk_table_remove;
 136   container_class->forall = gtk_table_forall;
 137   container_class->child_type = gtk_table_child_type;
 138   container_class->set_child_property = gtk_table_set_child_property;
 139   container_class->get_child_property = gtk_table_get_child_property;
 140
 141
 142   g_object_class_install_property (gobject_class,
 143                                    PROP_N_ROWS,
 144                                    g_param_spec_uint ("n-rows",
 145                                                      P_("Rows"),
 146                                                      P_("The number of rows in the table"),
 147                                                      1,
 148                                                      65535,
 149                                                      1,
 150                                                      GTK_PARAM_READWRITE));
 151   g_object_class_install_property (gobject_class,
 152                                    PROP_N_COLUMNS,
 153                                    g_param_spec_uint ("n-columns",
 154                                                      P_("Columns"),
 155                                                      P_("The number of columns in the table"),
 156                                                      1,
 157                                                      65535,
 158                                                      1,
 159                                                      GTK_PARAM_READWRITE));
 160   g_object_class_install_property (gobject_class,
 161                                    PROP_ROW_SPACING,
 162                                    g_param_spec_uint ("row-spacing",
 163                                                      P_("Row spacing"),
 164                                                      P_("The amount of space between two consecutive rows"),
 165                                                      0,
 166                                                      65535,
 167                                                      0,
 168                                                      GTK_PARAM_READWRITE));
 169   g_object_class_install_property (gobject_class,
 170                                    PROP_COLUMN_SPACING,
 171                                    g_param_spec_uint ("column-spacing",
 172                                                      P_("Column spacing"),
 173                                                      P_("The amount of space between two consecutive columns"),
 174                                                      0,
 175                                                      65535,
 176                                                      0,
 177                                                      GTK_PARAM_READWRITE));
 178   g_object_class_install_property (gobject_class,
 179                                    PROP_HOMOGENEOUS,
 180                                    g_param_spec_boolean ("homogeneous",
 181                                                          P_("Homogeneous"),
 182                                                          P_("If TRUE, the table cells are all the same width/height"),
 183                                                          FALSE,
 184                                                          GTK_PARAM_READWRITE));
 185
 186   gtk_container_class_install_child_property (container_class,
 187                                               CHILD_PROP_LEFT_ATTACH,
 188                                               g_param_spec_uint ("left-attach",
 189                                                                  P_("Left attachment"),
 190                                                                  P_("The column number to attach the left side of the child to"),
 191                                                                  0, 65535, 0,
 192                                                                  GTK_PARAM_READWRITE));
 193   gtk_container_class_install_child_property (container_class,
 194                                               CHILD_PROP_RIGHT_ATTACH,
 195                                               g_param_spec_uint ("right-attach",
 196                                                                  P_("Right attachment"),
 197                                                                  P_("The column number to attach the right side of a child widget to"),
 198                                                                  1, 65535, 1,
 199                                                                  GTK_PARAM_READWRITE));
 200   gtk_container_class_install_child_property (container_class,
 201                                               CHILD_PROP_TOP_ATTACH,
 202                                               g_param_spec_uint ("top-attach",
 203                                                                  P_("Top attachment"),
 204                                                                  P_("The row number to attach the top of a child widget to"),
 205                                                                  0, 65535, 0,
 206                                                                  GTK_PARAM_READWRITE));
 207   gtk_container_class_install_child_property (container_class,
 208                                               CHILD_PROP_BOTTOM_ATTACH,
 209                                               g_param_spec_uint ("bottom-attach",
 210                                                                  P_("Bottom attachment"),
 211                                                                  P_("The row number to attach the bottom of the child to"),
 212                                                                  1, 65535, 1,
 213                                                                  GTK_PARAM_READWRITE));
 214   gtk_container_class_install_child_property (container_class,
 215                                               CHILD_PROP_X_OPTIONS,
 216                                               g_param_spec_flags ("x-options",
 217                                                                   P_("Horizontal options"),
 218                                                                   P_("Options specifying the horizontal behaviour of the child"),
 219                                                                   GTK_TYPE_ATTACH_OPTIONS, GTK_EXPAND | GTK_FILL,
 220                                                                   GTK_PARAM_READWRITE));
 221   gtk_container_class_install_child_property (container_class,
 222                                               CHILD_PROP_Y_OPTIONS,
 223                                               g_param_spec_flags ("y-options",
 224                                                                   P_("Vertical options"),
 225                                                                   P_("Options specifying the vertical behaviour of the child"),
 226                                                                   GTK_TYPE_ATTACH_OPTIONS, GTK_EXPAND | GTK_FILL,
 227                                                                   GTK_PARAM_READWRITE));
 228   gtk_container_class_install_child_property (container_class,
 229                                               CHILD_PROP_X_PADDING,
 230                                               g_param_spec_uint ("x-padding",
 231                                                                  P_("Horizontal padding"),
 232                                                                  P_("Extra space to put between the child and its left and right neighbors, in pixels"),
 233                                                                  0, 65535, 0,
 234                                                                  GTK_PARAM_READWRITE));
 235   gtk_container_class_install_child_property (container_class,
 236                                               CHILD_PROP_Y_PADDING,
 237                                               g_param_spec_uint ("y-padding",
 238                                                                  P_("Vertical padding"),
 239                                                                  P_("Extra space to put between the child and its upper and lower neighbors, in pixels"),
 240                                                                  0, 65535, 0,
 241                                                                  GTK_PARAM_READWRITE));
 242
 243   g_type_class_add_private (class, sizeof (GtkTablePrivate));
 244 }
 245
 246 static GType
 247 gtk_table_child_type (GtkContainer   *container)
 248 {
 249   return GTK_TYPE_WIDGET;
 250 }
 251
 252 static void
 253 gtk_table_get_property (GObject      *object,
 254                         guint         prop_id,
 255                         GValue       *value,
 256                         GParamSpec   *pspec)
 257 {
 258   GtkTable *table = GTK_TABLE (object);
 259   GtkTablePrivate *priv = table->priv;
 260
 261   switch (prop_id)
 262     {
 263     case PROP_N_ROWS:
 264       g_value_set_uint (value, priv->nrows);
 265       break;
 266     case PROP_N_COLUMNS:
 267       g_value_set_uint (value, priv->ncols);
 268       break;
 269     case PROP_ROW_SPACING:
 270       g_value_set_uint (value, priv->row_spacing);
 271       break;
 272     case PROP_COLUMN_SPACING:
 273       g_value_set_uint (value, priv->column_spacing);
 274       break;
 275     case PROP_HOMOGENEOUS:
 276       g_value_set_boolean (value, priv->homogeneous);
 277       break;
 278     default:
 279       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 280       break;
 281     }
 282 }
 283
 284 static void
 285 gtk_table_set_property (GObject      *object,
 286                         guint         prop_id,
 287                         const GValue *value,
 288                         GParamSpec   *pspec)
 289 {
 290   GtkTable *table = GTK_TABLE (object);
 291   GtkTablePrivate *priv = table->priv;
 292
 293   switch (prop_id)
 294     {
 295     case PROP_N_ROWS:
 296       gtk_table_resize (table, g_value_get_uint (value), priv->ncols);
 297       break;
 298     case PROP_N_COLUMNS:
 299       gtk_table_resize (table, priv->nrows, g_value_get_uint (value));
 300       break;
 301     case PROP_ROW_SPACING:
 302       gtk_table_set_row_spacings (table, g_value_get_uint (value));
 303       break;
 304     case PROP_COLUMN_SPACING:
 305       gtk_table_set_col_spacings (table, g_value_get_uint (value));
 306       break;
 307     case PROP_HOMOGENEOUS:
 308       gtk_table_set_homogeneous (table, g_value_get_boolean (value));
 309       break;
 310     default:
 311       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 312       break;
 313     }
 314 }
 315
 316 static void
 317 gtk_table_set_child_property (GtkContainer    *container,
 318                               GtkWidget       *child,
 319                               guint            property_id,
 320                               const GValue    *value,
 321                               GParamSpec      *pspec)
 322 {
 323   GtkTable *table = GTK_TABLE (container);
 324   GtkTablePrivate *priv = table->priv;
 325   GtkTableChild *table_child;
 326   GList *list;
 327
 328   table_child = NULL;
 329   for (list = priv->children; list; list = list->next)
 330     {
 331       table_child = list->data;
 332
 333       if (table_child->widget == child)
 334         break;
 335     }
 336   if (!list)
 337     {
 338       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 339       return;
 340     }
 341
 342   switch (property_id)
 343     {
 344     case CHILD_PROP_LEFT_ATTACH:
 345       table_child->left_attach = g_value_get_uint (value);
 346       if (table_child->right_attach <= table_child->left_attach)
 347         table_child->right_attach = table_child->left_attach + 1;
 348       if (table_child->right_attach >= priv->ncols)
 349         gtk_table_resize (table, priv->nrows, table_child->right_attach);
 350       break;
 351     case CHILD_PROP_RIGHT_ATTACH:
 352       table_child->right_attach = g_value_get_uint (value);
 353       if (table_child->right_attach <= table_child->left_attach)
 354         table_child->left_attach = table_child->right_attach - 1;
 355       if (table_child->right_attach >= priv->ncols)
 356         gtk_table_resize (table, priv->nrows, table_child->right_attach);
 357       break;
 358     case CHILD_PROP_TOP_ATTACH:
 359       table_child->top_attach = g_value_get_uint (value);
 360       if (table_child->bottom_attach <= table_child->top_attach)
 361         table_child->bottom_attach = table_child->top_attach + 1;
 362       if (table_child->bottom_attach >= priv->nrows)
 363         gtk_table_resize (table, table_child->bottom_attach, priv->ncols);
 364       break;
 365     case CHILD_PROP_BOTTOM_ATTACH:
 366       table_child->bottom_attach = g_value_get_uint (value);
 367       if (table_child->bottom_attach <= table_child->top_attach)
 368         table_child->top_attach = table_child->bottom_attach - 1;
 369       if (table_child->bottom_attach >= priv->nrows)
 370         gtk_table_resize (table, table_child->bottom_attach, priv->ncols);
 371       break;
 372     case CHILD_PROP_X_OPTIONS:
 373       table_child->xexpand = (g_value_get_flags (value) & GTK_EXPAND) != 0;
 374       table_child->xshrink = (g_value_get_flags (value) & GTK_SHRINK) != 0;
 375       table_child->xfill = (g_value_get_flags (value) & GTK_FILL) != 0;
 376       break;
 377     case CHILD_PROP_Y_OPTIONS:
 378       table_child->yexpand = (g_value_get_flags (value) & GTK_EXPAND) != 0;
 379       table_child->yshrink = (g_value_get_flags (value) & GTK_SHRINK) != 0;
 380       table_child->yfill = (g_value_get_flags (value) & GTK_FILL) != 0;
 381       break;
 382     case CHILD_PROP_X_PADDING:
 383       table_child->xpadding = g_value_get_uint (value);
 384       break;
 385     case CHILD_PROP_Y_PADDING:
 386       table_child->ypadding = g_value_get_uint (value);
 387       break;
 388     default:
 389       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 390       break;
 391     }
 392   if (gtk_widget_get_visible (child) &&
 393       gtk_widget_get_visible (GTK_WIDGET (table)))
 394     gtk_widget_queue_resize (child);
 395 }
 396
 397 static void
 398 gtk_table_get_child_property (GtkContainer    *container,
 399                               GtkWidget       *child,
 400                               guint            property_id,
 401                               GValue          *value,
 402                               GParamSpec      *pspec)
 403 {
 404   GtkTable *table = GTK_TABLE (container);
 405   GtkTablePrivate *priv = table->priv;
 406   GtkTableChild *table_child;
 407   GList *list;
 408
 409   table_child = NULL;
 410   for (list = priv->children; list; list = list->next)
 411     {
 412       table_child = list->data;
 413
 414       if (table_child->widget == child)
 415         break;
 416     }
 417   if (!list)
 418     {
 419       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 420       return;
 421     }
 422
 423   switch (property_id)
 424     {
 425     case CHILD_PROP_LEFT_ATTACH:
 426       g_value_set_uint (value, table_child->left_attach);
 427       break;
 428     case CHILD_PROP_RIGHT_ATTACH:
 429       g_value_set_uint (value, table_child->right_attach);
 430       break;
 431     case CHILD_PROP_TOP_ATTACH:
 432       g_value_set_uint (value, table_child->top_attach);
 433       break;
 434     case CHILD_PROP_BOTTOM_ATTACH:
 435       g_value_set_uint (value, table_child->bottom_attach);
 436       break;
 437     case CHILD_PROP_X_OPTIONS:
 438       g_value_set_flags (value, (table_child->xexpand * GTK_EXPAND |
 439                                  table_child->xshrink * GTK_SHRINK |
 440                                  table_child->xfill * GTK_FILL));
 441       break;
 442     case CHILD_PROP_Y_OPTIONS:
 443       g_value_set_flags (value, (table_child->yexpand * GTK_EXPAND |
 444                                  table_child->yshrink * GTK_SHRINK |
 445                                  table_child->yfill * GTK_FILL));
 446       break;
 447     case CHILD_PROP_X_PADDING:
 448       g_value_set_uint (value, table_child->xpadding);
 449       break;
 450     case CHILD_PROP_Y_PADDING:
 451       g_value_set_uint (value, table_child->ypadding);
 452       break;
 453     default:
 454       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
 455       break;
 456     }
 457 }
 458
 459 static void
 460 gtk_table_init (GtkTable *table)
 461 {
 462   GtkTablePrivate *priv;
 463
 464   table->priv = G_TYPE_INSTANCE_GET_PRIVATE (table,
 465                                              GTK_TYPE_TABLE,
 466                                              GtkTablePrivate);
 467   priv = table->priv;
 468
 469   gtk_widget_set_has_window (GTK_WIDGET (table), FALSE);
 470   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (table), FALSE);
 471
 472   priv->children = NULL;
 473   priv->rows = NULL;
 474   priv->cols = NULL;
 475   priv->nrows = 0;
 476   priv->ncols = 0;
 477   priv->column_spacing = 0;
 478   priv->row_spacing = 0;
 479   priv->homogeneous = FALSE;
 480
 481   gtk_table_resize (table, 1, 1);
 482 }
 483
 484 GtkWidget*
 485 gtk_table_new (guint    rows,
 486                guint    columns,
 487                gboolean homogeneous)
 488 {
 489   GtkTable *table;
 490   GtkTablePrivate *priv;
 491
 492   if (rows == 0)
 493     rows = 1;
 494   if (columns == 0)
 495     columns = 1;
 496
 497   table = g_object_new (GTK_TYPE_TABLE, NULL);
 498   priv = table->priv;
 499
 500   priv->homogeneous = (homogeneous ? TRUE : FALSE);
 501
 502   gtk_table_resize (table, rows, columns);
 503
 504   return GTK_WIDGET (table);
 505 }
 506
 507 void
 508 gtk_table_resize (GtkTable *table,
 509                   guint     n_rows,
 510                   guint     n_cols)
 511 {
 512   GtkTablePrivate *priv;
 513
 514   g_return_if_fail (GTK_IS_TABLE (table));
 515   g_return_if_fail (n_rows > 0 && n_rows <= 65535);
 516   g_return_if_fail (n_cols > 0 && n_cols <= 65535);
 517
 518   priv = table->priv;
 519
 520   n_rows = MAX (n_rows, 1);
 521   n_cols = MAX (n_cols, 1);
 522
 523   if (n_rows != priv->nrows ||
 524       n_cols != priv->ncols)
 525     {
 526       GList *list;
 527
 528       for (list = priv->children; list; list = list->next)
 529         {
 530           GtkTableChild *child;
 531
 532           child = list->data;
 533
 534           n_rows = MAX (n_rows, child->bottom_attach);
 535           n_cols = MAX (n_cols, child->right_attach);
 536         }
 537
 538       if (n_rows != priv->nrows)
 539         {
 540           guint i;
 541
 542           i = priv->nrows;
 543           priv->nrows = n_rows;
 544           priv->rows = g_realloc (priv->rows, priv->nrows * sizeof (GtkTableRowCol));
 545
 546           for (; i < priv->nrows; i++)
 547             {
 548               priv->rows[i].requisition = 0;
 549               priv->rows[i].allocation = 0;
 550               priv->rows[i].spacing = priv->row_spacing;
 551               priv->rows[i].need_expand = 0;
 552               priv->rows[i].need_shrink = 0;
 553               priv->rows[i].expand = 0;
 554               priv->rows[i].shrink = 0;
 555             }
 556
 557           g_object_notify (G_OBJECT (table), "n-rows");
 558         }
 559
 560       if (n_cols != priv->ncols)
 561         {
 562           guint i;
 563
 564           i = priv->ncols;
 565           priv->ncols = n_cols;
 566           priv->cols = g_realloc (priv->cols, priv->ncols * sizeof (GtkTableRowCol));
 567
 568           for (; i < priv->ncols; i++)
 569             {
 570               priv->cols[i].requisition = 0;
 571               priv->cols[i].allocation = 0;
 572               priv->cols[i].spacing = priv->column_spacing;
 573               priv->cols[i].need_expand = 0;
 574               priv->cols[i].need_shrink = 0;
 575               priv->cols[i].expand = 0;
 576               priv->cols[i].shrink = 0;
 577             }
 578
 579           g_object_notify (G_OBJECT (table), "n-columns");
 580         }
 581     }
 582 }
 583
 584 void
 585 gtk_table_attach (GtkTable        *table,
 586                   GtkWidget       *child,
 587                   guint            left_attach,
 588                   guint            right_attach,
 589                   guint            top_attach,
 590                   guint            bottom_attach,
 591                   GtkAttachOptions xoptions,
 592                   GtkAttachOptions yoptions,
 593                   guint            xpadding,
 594                   guint            ypadding)
 595 {
 596   GtkTablePrivate *priv = table->priv;
 597   GtkTableChild *table_child;
 598
 599   g_return_if_fail (GTK_IS_TABLE (table));
 600   g_return_if_fail (GTK_IS_WIDGET (child));
 601   g_return_if_fail (gtk_widget_get_parent (child) == NULL);
 602
 603   /* g_return_if_fail (left_attach >= 0); */
 604   g_return_if_fail (left_attach < right_attach);
 605   /* g_return_if_fail (top_attach >= 0); */
 606   g_return_if_fail (top_attach < bottom_attach);
 607
 608   priv = table->priv;
 609
 610   if (right_attach >= priv->ncols)
 611     gtk_table_resize (table, priv->nrows, right_attach);
 612
 613   if (bottom_attach >= priv->nrows)
 614     gtk_table_resize (table, bottom_attach, priv->ncols);
 615
 616   table_child = g_new (GtkTableChild, 1);
 617   table_child->widget = child;
 618   table_child->left_attach = left_attach;
 619   table_child->right_attach = right_attach;
 620   table_child->top_attach = top_attach;
 621   table_child->bottom_attach = bottom_attach;
 622   table_child->xexpand = (xoptions & GTK_EXPAND) != 0;
 623   table_child->xshrink = (xoptions & GTK_SHRINK) != 0;
 624   table_child->xfill = (xoptions & GTK_FILL) != 0;
 625   table_child->xpadding = xpadding;
 626   table_child->yexpand = (yoptions & GTK_EXPAND) != 0;
 627   table_child->yshrink = (yoptions & GTK_SHRINK) != 0;
 628   table_child->yfill = (yoptions & GTK_FILL) != 0;
 629   table_child->ypadding = ypadding;
 630
 631   priv->children = g_list_prepend (priv->children, table_child);
 632
 633   gtk_widget_set_parent (child, GTK_WIDGET (table));
 634 }
 635
 636 void
 637 gtk_table_attach_defaults (GtkTable  *table,
 638                            GtkWidget *widget,
 639                            guint      left_attach,
 640                            guint      right_attach,
 641                            guint      top_attach,
 642                            guint      bottom_attach)
 643 {
 644   gtk_table_attach (table, widget,
 645                     left_attach, right_attach,
 646                     top_attach, bottom_attach,
 647                     GTK_EXPAND | GTK_FILL,
 648                     GTK_EXPAND | GTK_FILL,
 649                     0, 0);
 650 }
 651
 652 void
 653 gtk_table_set_row_spacing (GtkTable *table,
 654                            guint     row,
 655                            guint     spacing)
 656 {
 657   GtkTablePrivate *priv;
 658
 659   g_return_if_fail (GTK_IS_TABLE (table));
 660
 661   priv = table->priv;
 662
 663   g_return_if_fail (row < priv->nrows);
 664
 665   if (priv->rows[row].spacing != spacing)
 666     {
 667       priv->rows[row].spacing = spacing;
 668
 669       if (gtk_widget_get_visible (GTK_WIDGET (table)))
 670         gtk_widget_queue_resize (GTK_WIDGET (table));
 671     }
 672 }
 673
 674 /**
 675  * gtk_table_get_row_spacing:
 676  * @table: a #GtkTable
 677  * @row: a row in the table, 0 indicates the first row
 678  *
 679  * Gets the amount of space between row @row, and
 680  * row @row + 1. See gtk_table_set_row_spacing().
 681  *
 682  * Return value: the row spacing
 683  **/
 684 guint
 685 gtk_table_get_row_spacing (GtkTable *table,
 686                            guint     row)
 687 {
 688   GtkTablePrivate *priv;
 689
 690   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 691
 692   priv = table->priv;
 693
 694   g_return_val_if_fail (row < priv->nrows - 1, 0);
 695
 696   return priv->rows[row].spacing;
 697 }
 698
 699 void
 700 gtk_table_set_col_spacing (GtkTable *table,
 701                            guint     column,
 702                            guint     spacing)
 703 {
 704   GtkTablePrivate *priv;
 705
 706   g_return_if_fail (GTK_IS_TABLE (table));
 707
 708   priv = table->priv;
 709
 710   g_return_if_fail (column < priv->ncols);
 711
 712   if (priv->cols[column].spacing != spacing)
 713     {
 714       priv->cols[column].spacing = spacing;
 715
 716       if (gtk_widget_get_visible (GTK_WIDGET (table)))
 717         gtk_widget_queue_resize (GTK_WIDGET (table));
 718     }
 719 }
 720
 721 /**
 722  * gtk_table_get_col_spacing:
 723  * @table: a #GtkTable
 724  * @column: a column in the table, 0 indicates the first column
 725  *
 726  * Gets the amount of space between column @col, and
 727  * column @col + 1. See gtk_table_set_col_spacing().
 728  *
 729  * Return value: the column spacing
 730  **/
 731 guint
 732 gtk_table_get_col_spacing (GtkTable *table,
 733                            guint     column)
 734 {
 735   GtkTablePrivate *priv;
 736
 737   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 738
 739   priv = table->priv;
 740
 741   g_return_val_if_fail (column < priv->ncols, 0);
 742
 743   return priv->cols[column].spacing;
 744 }
 745
 746 void
 747 gtk_table_set_row_spacings (GtkTable *table,
 748                             guint     spacing)
 749 {
 750   GtkTablePrivate *priv;
 751   guint row;
 752
 753   g_return_if_fail (GTK_IS_TABLE (table));
 754
 755   priv = table->priv;
 756
 757   priv->row_spacing = spacing;
 758   for (row = 0; row < priv->nrows; row++)
 759     priv->rows[row].spacing = spacing;
 760
 761   if (gtk_widget_get_visible (GTK_WIDGET (table)))
 762     gtk_widget_queue_resize (GTK_WIDGET (table));
 763
 764   g_object_notify (G_OBJECT (table), "row-spacing");
 765 }
 766
 767 /**
 768  * gtk_table_get_default_row_spacing:
 769  * @table: a #GtkTable
 770  *
 771  * Gets the default row spacing for the table. This is
 772  * the spacing that will be used for newly added rows.
 773  * (See gtk_table_set_row_spacings())
 774  *
 775  * Return value: the default row spacing
 776  **/
 777 guint
 778 gtk_table_get_default_row_spacing (GtkTable *table)
 779 {
 780   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 781
 782   return table->priv->row_spacing;
 783 }
 784
 785 void
 786 gtk_table_set_col_spacings (GtkTable *table,
 787                             guint     spacing)
 788 {
 789   GtkTablePrivate *priv;
 790   guint col;
 791
 792   g_return_if_fail (GTK_IS_TABLE (table));
 793
 794   priv = table->priv;
 795
 796   priv->column_spacing = spacing;
 797   for (col = 0; col < priv->ncols; col++)
 798     priv->cols[col].spacing = spacing;
 799
 800   if (gtk_widget_get_visible (GTK_WIDGET (table)))
 801     gtk_widget_queue_resize (GTK_WIDGET (table));
 802
 803   g_object_notify (G_OBJECT (table), "column-spacing");
 804 }
 805
 806 /**
 807  * gtk_table_get_default_col_spacing:
 808  * @table: a #GtkTable
 809  *
 810  * Gets the default column spacing for the table. This is
 811  * the spacing that will be used for newly added columns.
 812  * (See gtk_table_set_col_spacings())
 813  *
 814  * Return value: the default column spacing
 815  **/
 816 guint
 817 gtk_table_get_default_col_spacing (GtkTable *table)
 818 {
 819   g_return_val_if_fail (GTK_IS_TABLE (table), 0);
 820
 821   return table->priv->column_spacing;
 822 }
 823
 824 void
 825 gtk_table_set_homogeneous (GtkTable *table,
 826                            gboolean  homogeneous)
 827 {
 828   GtkTablePrivate *priv;
 829
 830   g_return_if_fail (GTK_IS_TABLE (table));
 831
 832   priv = table->priv;
 833
 834   homogeneous = (homogeneous != 0);
 835   if (homogeneous != priv->homogeneous)
 836     {
 837       priv->homogeneous = homogeneous;
 838
 839       if (gtk_widget_get_visible (GTK_WIDGET (table)))
 840         gtk_widget_queue_resize (GTK_WIDGET (table));
 841
 842       g_object_notify (G_OBJECT (table), "homogeneous");
 843     }
 844 }
 845
 846 /**
 847  * gtk_table_get_homogeneous:
 848  * @table: a #GtkTable
 849  *
 850  * Returns whether the table cells are all constrained to the same
 851  * width and height. (See gtk_table_set_homogenous ())
 852  *
 853  * Return value: %TRUE if the cells are all constrained to the same size
 854  **/
 855 gboolean
 856 gtk_table_get_homogeneous (GtkTable *table)
 857 {
 858   g_return_val_if_fail (GTK_IS_TABLE (table), FALSE);
 859
 860   return table->priv->homogeneous;
 861 }
 862
 863 /**
 864  * gtk_table_get_size:
 865  * @table: a #GtkTable
 866  * @rows: (out) (allow-none): return location for the number of
 867  *   rows, or %NULL
 868  * @columns: (out) (allow-none): return location for the number
 869  *   of columns, or %NULL
 870  *
 871  * Returns the number of rows and columns in the table.
 872  *
 873  * Since: 2.22
 874  **/
 875 void
 876 gtk_table_get_size (GtkTable *table,
 877                     guint    *rows,
 878                     guint    *columns)
 879 {
 880   GtkTablePrivate *priv;
 881
 882   g_return_if_fail (GTK_IS_TABLE (table));
 883
 884   priv = table->priv;
 885
 886   if (rows)
 887     *rows = priv->nrows;
 888
 889   if (columns)
 890     *columns = priv->ncols;
 891 }
 892
 893 static void
 894 gtk_table_finalize (GObject *object)
 895 {
 896   GtkTable *table = GTK_TABLE (object);
 897   GtkTablePrivate *priv = table->priv;
 898
 899   g_free (priv->rows);
 900   g_free (priv->cols);
 901
 902   G_OBJECT_CLASS (gtk_table_parent_class)->finalize (object);
 903 }
 904
 905 static void
 906 gtk_table_size_request (GtkWidget      *widget,
 907                         GtkRequisition *requisition)
 908 {
 909   GtkTable *table = GTK_TABLE (widget);
 910   GtkTablePrivate *priv = table->priv;
 911   gint row, col;
 912   guint border_width;
 913
 914   requisition->width = 0;
 915   requisition->height = 0;
 916
 917   gtk_table_size_request_init (table);
 918   gtk_table_size_request_pass1 (table);
 919   gtk_table_size_request_pass2 (table);
 920   gtk_table_size_request_pass3 (table);
 921   gtk_table_size_request_pass2 (table);
 922
 923   for (col = 0; col < priv->ncols; col++)
 924     requisition->width += priv->cols[col].requisition;
 925   for (col = 0; col + 1 < priv->ncols; col++)
 926     requisition->width += priv->cols[col].spacing;
 927
 928   for (row = 0; row < priv->nrows; row++)
 929     requisition->height += priv->rows[row].requisition;
 930   for (row = 0; row + 1 < priv->nrows; row++)
 931     requisition->height += priv->rows[row].spacing;
 932
 933   border_width = gtk_container_get_border_width (GTK_CONTAINER (table));
 934   requisition->width += border_width * 2;
 935   requisition->height += border_width * 2;
 936 }
 937
 938 static void
 939 gtk_table_size_allocate (GtkWidget     *widget,
 940                          GtkAllocation *allocation)
 941 {
 942   GtkTable *table = GTK_TABLE (widget);
 943
 944   gtk_widget_set_allocation (widget, allocation);
 945
 946   gtk_table_size_allocate_init (table);
 947   gtk_table_size_allocate_pass1 (table);
 948   gtk_table_size_allocate_pass2 (table);
 949 }
 950
 951 static void
 952 gtk_table_add (GtkContainer *container,
 953                GtkWidget    *widget)
 954 {
 955   gtk_table_attach_defaults (GTK_TABLE (container), widget, 0, 1, 0, 1);
 956 }
 957
 958 static void
 959 gtk_table_remove (GtkContainer *container,
 960                   GtkWidget    *widget)
 961 {
 962   GtkTable *table = GTK_TABLE (container);
 963   GtkTablePrivate *priv = table->priv;
 964   GtkTableChild *child;
 965   GtkWidget *widget_container = GTK_WIDGET (container);
 966   GList *children;
 967
 968   children = priv->children;
 969
 970   while (children)
 971     {
 972       child = children->data;
 973       children = children->next;
 974
 975       if (child->widget == widget)
 976         {
 977           gboolean was_visible = gtk_widget_get_visible (widget);
 978
 979           gtk_widget_unparent (widget);
 980
 981           priv->children = g_list_remove (priv->children, child);
 982           g_free (child);
 983
 984           if (was_visible && gtk_widget_get_visible (widget_container))
 985             gtk_widget_queue_resize (widget_container);
 986           break;
 987         }
 988     }
 989 }
 990
 991 static void
 992 gtk_table_forall (GtkContainer *container,
 993                   gboolean      include_internals,
 994                   GtkCallback   callback,
 995                   gpointer      callback_data)
 996 {
 997   GtkTable *table = GTK_TABLE (container);
 998   GtkTablePrivate *priv = table->priv;
 999   GtkTableChild *child;
1000   GList *children;
1001
1002   children = priv->children;
1003
1004   while (children)
1005     {
1006       child = children->data;
1007       children = children->next;
1008
1009       (* callback) (child->widget, callback_data);
1010     }
1011 }
1012
1013 static void
1014 gtk_table_size_request_init (GtkTable *table)
1015 {
1016   GtkTablePrivate *priv = table->priv;
1017   GtkTableChild *child;
1018   GList *children;
1019   gint row, col;
1020
1021   for (row = 0; row < priv->nrows; row++)
1022     {
1023       priv->rows[row].requisition = 0;
1024       priv->rows[row].expand = FALSE;
1025     }
1026   for (col = 0; col < priv->ncols; col++)
1027     {
1028       priv->cols[col].requisition = 0;
1029       priv->cols[col].expand = FALSE;
1030     }
1031
1032   children = priv->children;
1033   while (children)
1034     {
1035       child = children->data;
1036       children = children->next;
1037
1038       if (gtk_widget_get_visible (child->widget))
1039         gtk_widget_size_request (child->widget, NULL);
1040
1041       if (child->left_attach == (child->right_attach - 1) && child->xexpand)
1042         priv->cols[child->left_attach].expand = TRUE;
1043
1044       if (child->top_attach == (child->bottom_attach - 1) && child->yexpand)
1045         priv->rows[child->top_attach].expand = TRUE;
1046     }
1047 }
1048
1049 static void
1050 gtk_table_size_request_pass1 (GtkTable *table)
1051 {
1052   GtkTablePrivate *priv = table->priv;
1053   GtkTableChild *child;
1054   GList *children;
1055   gint width;
1056   gint height;
1057
1058   children = priv->children;
1059   while (children)
1060     {
1061       child = children->data;
1062       children = children->next;
1063
1064       if (gtk_widget_get_visible (child->widget))
1065         {
1066           GtkRequisition child_requisition;
1067           gtk_widget_get_child_requisition (child->widget, &child_requisition);
1068
1069           /* Child spans a single column.
1070            */
1071           if (child->left_attach == (child->right_attach - 1))
1072             {
1073               width = child_requisition.width + child->xpadding * 2;
1074               priv->cols[child->left_attach].requisition = MAX (priv->cols[child->left_attach].requisition, width);
1075             }
1076
1077           /* Child spans a single row.
1078            */
1079           if (child->top_attach == (child->bottom_attach - 1))
1080             {
1081               height = child_requisition.height + child->ypadding * 2;
1082               priv->rows[child->top_attach].requisition = MAX (priv->rows[child->top_attach].requisition, height);
1083             }
1084         }
1085     }
1086 }
1087
1088 static void
1089 gtk_table_size_request_pass2 (GtkTable *table)
1090 {
1091   GtkTablePrivate *priv = table->priv;
1092   gint max_width;
1093   gint max_height;
1094   gint row, col;
1095
1096   if (priv->homogeneous)
1097     {
1098       max_width = 0;
1099       max_height = 0;
1100
1101       for (col = 0; col < priv->ncols; col++)
1102         max_width = MAX (max_width, priv->cols[col].requisition);
1103       for (row = 0; row < priv->nrows; row++)
1104         max_height = MAX (max_height, priv->rows[row].requisition);
1105
1106       for (col = 0; col < priv->ncols; col++)
1107         priv->cols[col].requisition = max_width;
1108       for (row = 0; row < priv->nrows; row++)
1109         priv->rows[row].requisition = max_height;
1110     }
1111 }
1112
1113 static void
1114 gtk_table_size_request_pass3 (GtkTable *table)
1115 {
1116   GtkTablePrivate *priv = table->priv;
1117   GtkTableChild *child;
1118   GList *children;
1119   gint width, height;
1120   gint row, col;
1121   gint extra;
1122
1123   children = priv->children;
1124   while (children)
1125     {
1126       child = children->data;
1127       children = children->next;
1128
1129       if (gtk_widget_get_visible (child->widget))
1130         {
1131           /* Child spans multiple columns.
1132            */
1133           if (child->left_attach != (child->right_attach - 1))
1134             {
1135               GtkRequisition child_requisition;
1136
1137               gtk_widget_get_child_requisition (child->widget, &child_requisition);
1138
1139               /* Check and see if there is already enough space
1140                *  for the child.
1141                */
1142               width = 0;
1143               for (col = child->left_attach; col < child->right_attach; col++)
1144                 {
1145                   width += priv->cols[col].requisition;
1146                   if ((col + 1) < child->right_attach)
1147                     width += priv->cols[col].spacing;
1148                 }
1149
1150               /* If we need to request more space for this child to fill
1151                *  its requisition, then divide up the needed space amongst the
1152                *  columns it spans, favoring expandable columns if any.
1153                */
1154               if (width < child_requisition.width + child->xpadding * 2)
1155                 {
1156                   gint n_expand = 0;
1157                   gboolean force_expand = FALSE;
1158
1159                   width = child_requisition.width + child->xpadding * 2 - width;
1160
1161                   for (col = child->left_attach; col < child->right_attach; col++)
1162                     if (priv->cols[col].expand)
1163                       n_expand++;
1164
1165                   if (n_expand == 0)
1166                     {
1167                       n_expand = (child->right_attach - child->left_attach);
1168                       force_expand = TRUE;
1169                     }
1170
1171                   for (col = child->left_attach; col < child->right_attach; col++)
1172                     if (force_expand || priv->cols[col].expand)
1173                       {
1174                         extra = width / n_expand;
1175                         priv->cols[col].requisition += extra;
1176                         width -= extra;
1177                         n_expand--;
1178                       }
1179                 }
1180             }
1181
1182           /* Child spans multiple rows.
1183            */
1184           if (child->top_attach != (child->bottom_attach - 1))
1185             {
1186               GtkRequisition child_requisition;
1187
1188               gtk_widget_get_child_requisition (child->widget, &child_requisition);
1189
1190               /* Check and see if there is already enough space
1191                *  for the child.
1192                */
1193               height = 0;
1194               for (row = child->top_attach; row < child->bottom_attach; row++)
1195                 {
1196                   height += priv->rows[row].requisition;
1197                   if ((row + 1) < child->bottom_attach)
1198                     height += priv->rows[row].spacing;
1199                 }
1200
1201               /* If we need to request more space for this child to fill
1202                *  its requisition, then divide up the needed space amongst the
1203                *  rows it spans, favoring expandable rows if any.
1204                */
1205               if (height < child_requisition.height + child->ypadding * 2)
1206                 {
1207                   gint n_expand = 0;
1208                   gboolean force_expand = FALSE;
1209
1210                   height = child_requisition.height + child->ypadding * 2 - height;
1211
1212                   for (row = child->top_attach; row < child->bottom_attach; row++)
1213                     {
1214                       if (priv->rows[row].expand)
1215                         n_expand++;
1216                     }
1217
1218                   if (n_expand == 0)
1219                     {
1220                       n_expand = (child->bottom_attach - child->top_attach);
1221                       force_expand = TRUE;
1222                     }
1223
1224                   for (row = child->top_attach; row < child->bottom_attach; row++)
1225                     if (force_expand || priv->rows[row].expand)
1226                       {
1227                         extra = height / n_expand;
1228                         priv->rows[row].requisition += extra;
1229                         height -= extra;
1230                         n_expand--;
1231                       }
1232                 }
1233             }
1234         }
1235     }
1236 }
1237
1238 static void
1239 gtk_table_size_allocate_init (GtkTable *table)
1240 {
1241   GtkTablePrivate *priv = table->priv;
1242   GtkTableChild *child;
1243   GList *children;
1244   gint row, col;
1245   gint has_expand;
1246   gint has_shrink;
1247
1248   /* Initialize the rows and cols.
1249    *  By default, rows and cols do not expand and do shrink.
1250    *  Those values are modified by the children that occupy
1251    *  the rows and cols.
1252    */
1253   for (col = 0; col < priv->ncols; col++)
1254     {
1255       priv->cols[col].allocation = priv->cols[col].requisition;
1256       priv->cols[col].need_expand = FALSE;
1257       priv->cols[col].need_shrink = TRUE;
1258       priv->cols[col].expand = FALSE;
1259       priv->cols[col].shrink = TRUE;
1260       priv->cols[col].empty = TRUE;
1261     }
1262   for (row = 0; row < priv->nrows; row++)
1263     {
1264       priv->rows[row].allocation = priv->rows[row].requisition;
1265       priv->rows[row].need_expand = FALSE;
1266       priv->rows[row].need_shrink = TRUE;
1267       priv->rows[row].expand = FALSE;
1268       priv->rows[row].shrink = TRUE;
1269       priv->rows[row].empty = TRUE;
1270     }
1271
1272   /* Loop over all the children and adjust the row and col values
1273    *  based on whether the children want to be allowed to expand
1274    *  or shrink. This loop handles children that occupy a single
1275    *  row or column.
1276    */
1277   children = priv->children;
1278   while (children)
1279     {
1280       child = children->data;
1281       children = children->next;
1282
1283       if (gtk_widget_get_visible (child->widget))
1284         {
1285           if (child->left_attach == (child->right_attach - 1))
1286             {
1287               if (child->xexpand)
1288                 priv->cols[child->left_attach].expand = TRUE;
1289
1290               if (!child->xshrink)
1291                 priv->cols[child->left_attach].shrink = FALSE;
1292
1293               priv->cols[child->left_attach].empty = FALSE;
1294             }
1295
1296           if (child->top_attach == (child->bottom_attach - 1))
1297             {
1298               if (child->yexpand)
1299                 priv->rows[child->top_attach].expand = TRUE;
1300
1301               if (!child->yshrink)
1302                 priv->rows[child->top_attach].shrink = FALSE;
1303
1304               priv->rows[child->top_attach].empty = FALSE;
1305             }
1306         }
1307     }
1308
1309   /* Loop over all the children again and this time handle children
1310    *  which span multiple rows or columns.
1311    */
1312   children = priv->children;
1313   while (children)
1314     {
1315       child = children->data;
1316       children = children->next;
1317
1318       if (gtk_widget_get_visible (child->widget))
1319         {
1320           if (child->left_attach != (child->right_attach - 1))
1321             {
1322               for (col = child->left_attach; col < child->right_attach; col++)
1323                 priv->cols[col].empty = FALSE;
1324
1325               if (child->xexpand)
1326                 {
1327                   has_expand = FALSE;
1328                   for (col = child->left_attach; col < child->right_attach; col++)
1329                     if (priv->cols[col].expand)
1330                       {
1331                         has_expand = TRUE;
1332                         break;
1333                       }
1334
1335                   if (!has_expand)
1336                     for (col = child->left_attach; col < child->right_attach; col++)
1337                       priv->cols[col].need_expand = TRUE;
1338                 }
1339
1340               if (!child->xshrink)
1341                 {
1342                   has_shrink = TRUE;
1343                   for (col = child->left_attach; col < child->right_attach; col++)
1344                     if (!priv->cols[col].shrink)
1345                       {
1346                         has_shrink = FALSE;
1347                         break;
1348                       }
1349
1350                   if (has_shrink)
1351                     for (col = child->left_attach; col < child->right_attach; col++)
1352                       priv->cols[col].need_shrink = FALSE;
1353                 }
1354             }
1355
1356           if (child->top_attach != (child->bottom_attach - 1))
1357             {
1358               for (row = child->top_attach; row < child->bottom_attach; row++)
1359                 priv->rows[row].empty = FALSE;
1360
1361               if (child->yexpand)
1362                 {
1363                   has_expand = FALSE;
1364                   for (row = child->top_attach; row < child->bottom_attach; row++)
1365                     if (priv->rows[row].expand)
1366                       {
1367                         has_expand = TRUE;
1368                         break;
1369                       }
1370
1371                   if (!has_expand)
1372                     for (row = child->top_attach; row < child->bottom_attach; row++)
1373                       priv->rows[row].need_expand = TRUE;
1374                 }
1375
1376               if (!child->yshrink)
1377                 {
1378                   has_shrink = TRUE;
1379                   for (row = child->top_attach; row < child->bottom_attach; row++)
1380                     if (!priv->rows[row].shrink)
1381                       {
1382                         has_shrink = FALSE;
1383                         break;
1384                       }
1385
1386                   if (has_shrink)
1387                     for (row = child->top_attach; row < child->bottom_attach; row++)
1388                       priv->rows[row].need_shrink = FALSE;
1389                 }
1390             }
1391         }
1392     }
1393
1394   /* Loop over the columns and set the expand and shrink values
1395    *  if the column can be expanded or shrunk.
1396    */
1397   for (col = 0; col < priv->ncols; col++)
1398     {
1399       if (priv->cols[col].empty)
1400         {
1401           priv->cols[col].expand = FALSE;
1402           priv->cols[col].shrink = FALSE;
1403         }
1404       else
1405         {
1406           if (priv->cols[col].need_expand)
1407             priv->cols[col].expand = TRUE;
1408           if (!priv->cols[col].need_shrink)
1409             priv->cols[col].shrink = FALSE;
1410         }
1411     }
1412
1413   /* Loop over the rows and set the expand and shrink values
1414    *  if the row can be expanded or shrunk.
1415    */
1416   for (row = 0; row < priv->nrows; row++)
1417     {
1418       if (priv->rows[row].empty)
1419         {
1420           priv->rows[row].expand = FALSE;
1421           priv->rows[row].shrink = FALSE;
1422         }
1423       else
1424         {
1425           if (priv->rows[row].need_expand)
1426             priv->rows[row].expand = TRUE;
1427           if (!priv->rows[row].need_shrink)
1428             priv->rows[row].shrink = FALSE;
1429         }
1430     }
1431 }
1432
1433 static void
1434 gtk_table_size_allocate_pass1 (GtkTable *table)
1435 {
1436   GtkTablePrivate *priv = table->priv;
1437   GtkAllocation allocation;
1438   gint real_width;
1439   gint real_height;
1440   gint width, height;
1441   gint row, col;
1442   gint nexpand;
1443   gint nshrink;
1444   gint extra;
1445   guint border_width;
1446
1447   /* If we were allocated more space than we requested
1448    *  then we have to expand any expandable rows and columns
1449    *  to fill in the extra space.
1450    */
1451   gtk_widget_get_allocation (GTK_WIDGET (table), &allocation);
1452   border_width = gtk_container_get_border_width (GTK_CONTAINER (table));
1453   real_width = allocation.width - border_width * 2;
1454   real_height = allocation.height - border_width * 2;
1455
1456   if (priv->homogeneous)
1457     {
1458       if (!priv->children)
1459         nexpand = 1;
1460       else
1461         {
1462           nexpand = 0;
1463           for (col = 0; col < priv->ncols; col++)
1464             if (priv->cols[col].expand)
1465               {
1466                 nexpand += 1;
1467                 break;
1468               }
1469         }
1470       if (nexpand)
1471         {
1472           width = real_width;
1473           for (col = 0; col + 1 < priv->ncols; col++)
1474             width -= priv->cols[col].spacing;
1475
1476           for (col = 0; col < priv->ncols; col++)
1477             {
1478               extra = width / (priv->ncols - col);
1479               priv->cols[col].allocation = MAX (1, extra);
1480               width -= extra;
1481             }
1482         }
1483     }
1484   else
1485     {
1486       width = 0;
1487       nexpand = 0;
1488       nshrink = 0;
1489
1490       for (col = 0; col < priv->ncols; col++)
1491         {
1492           width += priv->cols[col].requisition;
1493           if (priv->cols[col].expand)
1494             nexpand += 1;
1495           if (priv->cols[col].shrink)
1496             nshrink += 1;
1497         }
1498       for (col = 0; col + 1 < priv->ncols; col++)
1499         width += priv->cols[col].spacing;
1500
1501       /* Check to see if we were allocated more width than we requested.
1502        */
1503       if ((width < real_width) && (nexpand >= 1))
1504         {
1505           width = real_width - width;
1506
1507           for (col = 0; col < priv->ncols; col++)
1508             if (priv->cols[col].expand)
1509               {
1510                 extra = width / nexpand;
1511                 priv->cols[col].allocation += extra;
1512
1513                 width -= extra;
1514                 nexpand -= 1;
1515               }
1516         }
1517
1518       /* Check to see if we were allocated less width than we requested,
1519        * then shrink until we fit the size give.
1520        */
1521       if (width > real_width)
1522         {
1523           gint total_nshrink = nshrink;
1524
1525           extra = width - real_width;
1526           while (total_nshrink > 0 && extra > 0)
1527             {
1528               nshrink = total_nshrink;
1529               for (col = 0; col < priv->ncols; col++)
1530                 if (priv->cols[col].shrink)
1531                   {
1532                     gint allocation = priv->cols[col].allocation;
1533
1534                     priv->cols[col].allocation = MAX (1, (gint) priv->cols[col].allocation - extra / nshrink);
1535                     extra -= allocation - priv->cols[col].allocation;
1536                     nshrink -= 1;
1537                     if (priv->cols[col].allocation < 2)
1538                       {
1539                         total_nshrink -= 1;
1540                         priv->cols[col].shrink = FALSE;
1541                       }
1542                   }
1543             }
1544         }
1545     }
1546
1547   if (priv->homogeneous)
1548     {
1549       if (!priv->children)
1550         nexpand = 1;
1551       else
1552         {
1553           nexpand = 0;
1554           for (row = 0; row < priv->nrows; row++)
1555             if (priv->rows[row].expand)
1556               {
1557                 nexpand += 1;
1558                 break;
1559               }
1560         }
1561       if (nexpand)
1562         {
1563           height = real_height;
1564
1565           for (row = 0; row + 1 < priv->nrows; row++)
1566             height -= priv->rows[row].spacing;
1567
1568           for (row = 0; row < priv->nrows; row++)
1569             {
1570               extra = height / (priv->nrows - row);
1571               priv->rows[row].allocation = MAX (1, extra);
1572               height -= extra;
1573             }
1574         }
1575     }
1576   else
1577     {
1578       height = 0;
1579       nexpand = 0;
1580       nshrink = 0;
1581
1582       for (row = 0; row < priv->nrows; row++)
1583         {
1584           height += priv->rows[row].requisition;
1585           if (priv->rows[row].expand)
1586             nexpand += 1;
1587           if (priv->rows[row].shrink)
1588             nshrink += 1;
1589         }
1590       for (row = 0; row + 1 < priv->nrows; row++)
1591         height += priv->rows[row].spacing;
1592
1593       /* Check to see if we were allocated more height than we requested.
1594        */
1595       if ((height < real_height) && (nexpand >= 1))
1596         {
1597           height = real_height - height;
1598
1599           for (row = 0; row < priv->nrows; row++)
1600             if (priv->rows[row].expand)
1601               {
1602                 extra = height / nexpand;
1603                 priv->rows[row].allocation += extra;
1604
1605                 height -= extra;
1606                 nexpand -= 1;
1607               }
1608         }
1609
1610       /* Check to see if we were allocated less height than we requested.
1611        * then shrink until we fit the size give.
1612        */
1613       if (height > real_height)
1614         {
1615           gint total_nshrink = nshrink;
1616
1617           extra = height - real_height;
1618           while (total_nshrink > 0 && extra > 0)
1619             {
1620               nshrink = total_nshrink;
1621               for (row = 0; row < priv->nrows; row++)
1622                 if (priv->rows[row].shrink)
1623                   {
1624                     gint allocation = priv->rows[row].allocation;
1625
1626                     priv->rows[row].allocation = MAX (1, (gint) priv->rows[row].allocation - extra / nshrink);
1627                     extra -= allocation - priv->rows[row].allocation;
1628                     nshrink -= 1;
1629                     if (priv->rows[row].allocation < 2)
1630                       {
1631                         total_nshrink -= 1;
1632                         priv->rows[row].shrink = FALSE;
1633                       }
1634                   }
1635             }
1636         }
1637     }
1638 }
1639
1640 static void
1641 gtk_table_size_allocate_pass2 (GtkTable *table)
1642 {
1643   GtkTablePrivate *priv = table->priv;
1644   GtkTableChild *child;
1645   GList *children;
1646   gint max_width;
1647   gint max_height;
1648   gint x, y;
1649   gint row, col;
1650   GtkAllocation allocation;
1651   GtkAllocation table_allocation, widget_allocation;
1652   GtkWidget *widget = GTK_WIDGET (table);
1653
1654   children = priv->children;
1655   while (children)
1656     {
1657       child = children->data;
1658       children = children->next;
1659
1660       if (gtk_widget_get_visible (child->widget))
1661         {
1662           GtkRequisition child_requisition;
1663           guint border_width;
1664
1665           gtk_widget_get_child_requisition (child->widget, &child_requisition);
1666
1667           gtk_widget_get_allocation (GTK_WIDGET (table), &table_allocation);
1668           border_width = gtk_container_get_border_width (GTK_CONTAINER (table));
1669           x = table_allocation.x + border_width;
1670           y = table_allocation.y + border_width;
1671           max_width = 0;
1672           max_height = 0;
1673
1674           for (col = 0; col < child->left_attach; col++)
1675             {
1676               x += priv->cols[col].allocation;
1677               x += priv->cols[col].spacing;
1678             }
1679
1680           for (col = child->left_attach; col < child->right_attach; col++)
1681             {
1682               max_width += priv->cols[col].allocation;
1683               if ((col + 1) < child->right_attach)
1684                 max_width += priv->cols[col].spacing;
1685             }
1686
1687           for (row = 0; row < child->top_attach; row++)
1688             {
1689               y += priv->rows[row].allocation;
1690               y += priv->rows[row].spacing;
1691             }
1692
1693           for (row = child->top_attach; row < child->bottom_attach; row++)
1694             {
1695               max_height += priv->rows[row].allocation;
1696               if ((row + 1) < child->bottom_attach)
1697                 max_height += priv->rows[row].spacing;
1698             }
1699
1700           if (child->xfill)
1701             {
1702               allocation.width = MAX (1, max_width - (gint)child->xpadding * 2);
1703               allocation.x = x + (max_width - allocation.width) / 2;
1704             }
1705           else
1706             {
1707               allocation.width = child_requisition.width;
1708               allocation.x = x + (max_width - allocation.width) / 2;
1709             }
1710
1711           if (child->yfill)
1712             {
1713               allocation.height = MAX (1, max_height - (gint)child->ypadding * 2);
1714               allocation.y = y + (max_height - allocation.height) / 2;
1715             }
1716           else
1717             {
1718               allocation.height = child_requisition.height;
1719               allocation.y = y + (max_height - allocation.height) / 2;
1720             }
1721
1722           gtk_widget_get_allocation (widget, &widget_allocation);
1723           if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
1724             allocation.x = widget_allocation.x + widget_allocation.width
1725                            - (allocation.x - widget_allocation.x) - allocation.width;
1726
1727           gtk_widget_size_allocate (child->widget, &allocation);
1728         }
1729     }
1730 }