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

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include "gtktable.h"
  28 #include "gtkintl.h"
  29
  30 enum
  31 {
  32   PROP_0,
  33   PROP_N_ROWS,
  34   PROP_N_COLUMNS,
  35   PROP_COLUMN_SPACING,
  36   PROP_ROW_SPACING,
  37   PROP_HOMOGENEOUS
  38 };
  39
  40 enum
  41 {
  42   CHILD_ARG_0,
  43   CHILD_ARG_LEFT_ATTACH,
  44   CHILD_ARG_RIGHT_ATTACH,
  45   CHILD_ARG_TOP_ATTACH,
  46   CHILD_ARG_BOTTOM_ATTACH,
  47   CHILD_ARG_X_OPTIONS,
  48   CHILD_ARG_Y_OPTIONS,
  49   CHILD_ARG_X_PADDING,
  50   CHILD_ARG_Y_PADDING
  51 };
  52
  53
  54 static void gtk_table_class_init    (GtkTableClass  *klass);
  55 static void gtk_table_init          (GtkTable       *table);
  56 static void gtk_table_finalize      (GObject        *object);
  57 static void gtk_table_map           (GtkWidget      *widget);
  58 static void gtk_table_unmap         (GtkWidget      *widget);
  59 static void gtk_table_size_request  (GtkWidget      *widget,
  60                                      GtkRequisition *requisition);
  61 static void gtk_table_size_allocate (GtkWidget      *widget,
  62                                      GtkAllocation  *allocation);
  63 static void gtk_table_add           (GtkContainer   *container,
  64                                      GtkWidget      *widget);
  65 static void gtk_table_remove        (GtkContainer   *container,
  66                                      GtkWidget      *widget);
  67 static void gtk_table_forall        (GtkContainer   *container,
  68                                      gboolean        include_internals,
  69                                      GtkCallback     callback,
  70                                      gpointer        callback_data);
  71 static void gtk_table_get_property  (GObject         *object,
  72                                      guint            prop_id,
  73                                      GValue          *value,
  74                                      GParamSpec      *pspec);
  75 static void gtk_table_set_property  (GObject         *object,
  76                                      guint            prop_id,
  77                                      const GValue    *value,
  78                                      GParamSpec      *pspec);
  79 static void gtk_table_set_child_arg (GtkContainer   *container,
  80                                      GtkWidget      *child,
  81                                      GtkArg         *arg,
  82                                      guint           arg_id);
  83 static void gtk_table_get_child_arg (GtkContainer   *container,
  84                                      GtkWidget      *child,
  85                                      GtkArg         *arg,
  86                                      guint           arg_id);
  87 static GtkType gtk_table_child_type (GtkContainer   *container);
  88
  89
  90 static void gtk_table_size_request_init  (GtkTable *table);
  91 static void gtk_table_size_request_pass1 (GtkTable *table);
  92 static void gtk_table_size_request_pass2 (GtkTable *table);
  93 static void gtk_table_size_request_pass3 (GtkTable *table);
  94
  95 static void gtk_table_size_allocate_init  (GtkTable *table);
  96 static void gtk_table_size_allocate_pass1 (GtkTable *table);
  97 static void gtk_table_size_allocate_pass2 (GtkTable *table);
  98
  99
 100 static GtkContainerClass *parent_class = NULL;
 101
 102
 103 GtkType
 104 gtk_table_get_type (void)
 105 {
 106   static GtkType table_type = 0;
 107
 108   if (!table_type)
 109     {
 110       static const GtkTypeInfo table_info =
 111       {
 112         "GtkTable",
 113         sizeof (GtkTable),
 114         sizeof (GtkTableClass),
 115         (GtkClassInitFunc) gtk_table_class_init,
 116         (GtkObjectInitFunc) gtk_table_init,
 117         /* reserved_1 */ NULL,
 118         /* reserved_2 */ NULL,
 119         (GtkClassInitFunc) NULL,
 120       };
 121
 122       table_type = gtk_type_unique (gtk_container_get_type (), &table_info);
 123     }
 124
 125   return table_type;
 126 }
 127
 128 static void
 129 gtk_table_class_init (GtkTableClass *class)
 130 {
 131   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 132   GtkObjectClass *object_class;
 133   GtkWidgetClass *widget_class;
 134   GtkContainerClass *container_class;
 135
 136   object_class = (GtkObjectClass*) class;
 137   widget_class = (GtkWidgetClass*) class;
 138   container_class = (GtkContainerClass*) class;
 139
 140   parent_class = gtk_type_class (gtk_container_get_type ());
 141
 142   gobject_class->finalize = gtk_table_finalize;
 143
 144   gobject_class->get_property = gtk_table_get_property;
 145   gobject_class->set_property = gtk_table_set_property;
 146
 147   widget_class->map = gtk_table_map;
 148   widget_class->unmap = gtk_table_unmap;
 149   widget_class->size_request = gtk_table_size_request;
 150   widget_class->size_allocate = gtk_table_size_allocate;
 151
 152   container_class->add = gtk_table_add;
 153   container_class->remove = gtk_table_remove;
 154   container_class->forall = gtk_table_forall;
 155   container_class->child_type = gtk_table_child_type;
 156   container_class->set_child_arg = gtk_table_set_child_arg;
 157   container_class->get_child_arg = gtk_table_get_child_arg;
 158
 159
 160   g_object_class_install_property (gobject_class,
 161                                    PROP_N_ROWS,
 162                                    g_param_spec_uint ("n_rows",
 163                                                      _("Rows"),
 164                                                      _("The number of rows in the table"),
 165                                                      0,
 166                                                      G_MAXUINT,
 167                                                      0,
 168                                                      G_PARAM_READWRITE));
 169
 170   g_object_class_install_property (gobject_class,
 171                                    PROP_N_COLUMNS,
 172                                    g_param_spec_uint ("n_columns",
 173                                                      _("Columns"),
 174                                                      _("The number of columns in the table"),
 175                                                      0,
 176                                                      G_MAXUINT,
 177                                                      0,
 178                                                      G_PARAM_READWRITE));
 179
 180   g_object_class_install_property (gobject_class,
 181                                    PROP_ROW_SPACING,
 182                                    g_param_spec_uint ("row_spacing",
 183                                                      _("Row spacing"),
 184                                                      _("The amount of space between two consecutive rows"),
 185                                                      0,
 186                                                      G_MAXUINT,
 187                                                      0,
 188                                                      G_PARAM_READWRITE));
 189
 190   g_object_class_install_property (gobject_class,
 191                                    PROP_COLUMN_SPACING,
 192                                    g_param_spec_uint ("column_spacing",
 193                                                      _("Column spacing"),
 194                                                      _("The amount of space between two consecutive columns"),
 195                                                      0,
 196                                                      G_MAXUINT,
 197                                                      0,
 198                                                      G_PARAM_READWRITE));
 199
 200   g_object_class_install_property (gobject_class,
 201                                    PROP_HOMOGENEOUS,
 202                                    g_param_spec_boolean ("homogeneous",
 203                                                          _("Homogenous"),
 204                                                          _("If TRUE this means the table cells are all the same width/height"),
 205                                                          FALSE,
 206                                                          G_PARAM_READWRITE));
 207
 208   gtk_container_add_child_arg_type ("GtkTable::left_attach", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_LEFT_ATTACH);
 209   gtk_container_add_child_arg_type ("GtkTable::right_attach", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_RIGHT_ATTACH);
 210   gtk_container_add_child_arg_type ("GtkTable::top_attach", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_TOP_ATTACH);
 211   gtk_container_add_child_arg_type ("GtkTable::bottom_attach", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_BOTTOM_ATTACH);
 212   gtk_container_add_child_arg_type ("GtkTable::x_options", GTK_TYPE_ATTACH_OPTIONS, GTK_ARG_READWRITE, CHILD_ARG_X_OPTIONS);
 213   gtk_container_add_child_arg_type ("GtkTable::y_options", GTK_TYPE_ATTACH_OPTIONS, GTK_ARG_READWRITE, CHILD_ARG_Y_OPTIONS);
 214   gtk_container_add_child_arg_type ("GtkTable::x_padding", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_X_PADDING);
 215   gtk_container_add_child_arg_type ("GtkTable::y_padding", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_Y_PADDING);
 216 }
 217
 218 static GtkType
 219 gtk_table_child_type (GtkContainer   *container)
 220 {
 221   return GTK_TYPE_WIDGET;
 222 }
 223
 224 static void
 225 gtk_table_get_property (GObject      *object,
 226                         guint         prop_id,
 227                         GValue       *value,
 228                         GParamSpec   *pspec)
 229 {
 230   GtkTable *table;
 231
 232   table = GTK_TABLE (object);
 233
 234   switch (prop_id)
 235     {
 236     case PROP_N_ROWS:
 237       g_value_set_uint (value, table->nrows);
 238       break;
 239     case PROP_N_COLUMNS:
 240       g_value_set_uint (value, table->ncols);
 241       break;
 242     case PROP_ROW_SPACING:
 243       g_value_set_uint (value, table->row_spacing);
 244       break;
 245     case PROP_COLUMN_SPACING:
 246       g_value_set_uint (value, table->column_spacing);
 247       break;
 248     case PROP_HOMOGENEOUS:
 249       g_value_set_boolean (value, table->homogeneous);
 250       break;
 251     default:
 252       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 253       break;
 254     }
 255 }
 256
 257 static void
 258 gtk_table_set_property (GObject      *object,
 259                         guint         prop_id,
 260                         const GValue *value,
 261                         GParamSpec   *pspec)
 262 {
 263   GtkTable *table;
 264
 265   table = GTK_TABLE (object);
 266
 267   switch (prop_id)
 268     {
 269     case PROP_N_ROWS:
 270       gtk_table_resize (table, g_value_get_uint (value), table->ncols);
 271       break;
 272     case PROP_N_COLUMNS:
 273       gtk_table_resize (table, table->nrows, g_value_get_uint (value));
 274       break;
 275     case PROP_ROW_SPACING:
 276       gtk_table_set_row_spacings (table, g_value_get_uint (value));
 277       break;
 278     case PROP_COLUMN_SPACING:
 279       gtk_table_set_col_spacings (table, g_value_get_uint (value));
 280       break;
 281     case PROP_HOMOGENEOUS:
 282       gtk_table_set_homogeneous (table, g_value_get_boolean (value));
 283       break;
 284     default:
 285       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 286       break;
 287     }
 288 }
 289
 290 static void
 291 gtk_table_set_child_arg (GtkContainer   *container,
 292                          GtkWidget      *child,
 293                          GtkArg         *arg,
 294                          guint           arg_id)
 295 {
 296   GtkTable *table;
 297   GtkTableChild *table_child;
 298   GList *list;
 299
 300   table = GTK_TABLE (container);
 301   table_child = NULL;
 302   for (list = table->children; list; list = list->next)
 303     {
 304       table_child = list->data;
 305
 306       if (table_child->widget == child)
 307         break;
 308     }
 309   if (!list)
 310     return;
 311
 312   switch (arg_id)
 313     {
 314     case CHILD_ARG_LEFT_ATTACH:
 315       table_child->left_attach = GTK_VALUE_UINT (*arg);
 316       if (table_child->right_attach <= table_child->left_attach)
 317         table_child->right_attach = table_child->left_attach + 1;
 318       if (table_child->right_attach >= table->ncols)
 319         gtk_table_resize (table, table->ncols, table_child->right_attach);
 320       break;
 321     case CHILD_ARG_RIGHT_ATTACH:
 322       if (GTK_VALUE_UINT (*arg) > 0)
 323         {
 324           table_child->right_attach = GTK_VALUE_UINT (*arg);
 325           if (table_child->right_attach <= table_child->left_attach)
 326             table_child->left_attach = table_child->right_attach - 1;
 327           if (table_child->right_attach >= table->ncols)
 328             gtk_table_resize (table, table->ncols, table_child->right_attach);
 329         }
 330       break;
 331     case CHILD_ARG_TOP_ATTACH:
 332       table_child->top_attach = GTK_VALUE_UINT (*arg);
 333       if (table_child->bottom_attach <= table_child->top_attach)
 334         table_child->bottom_attach = table_child->top_attach + 1;
 335       if (table_child->bottom_attach >= table->nrows)
 336         gtk_table_resize (table, table_child->bottom_attach, table->ncols);
 337       break;
 338     case CHILD_ARG_BOTTOM_ATTACH:
 339       if (GTK_VALUE_UINT (*arg) > 0)
 340         {
 341           table_child->bottom_attach = GTK_VALUE_UINT (*arg);
 342           if (table_child->bottom_attach <= table_child->top_attach)
 343             table_child->top_attach = table_child->bottom_attach - 1;
 344           if (table_child->bottom_attach >= table->nrows)
 345             gtk_table_resize (table, table_child->bottom_attach, table->ncols);
 346         }
 347       break;
 348     case CHILD_ARG_X_OPTIONS:
 349       table_child->xexpand = (GTK_VALUE_FLAGS (*arg) & GTK_EXPAND) != 0;
 350       table_child->xshrink = (GTK_VALUE_FLAGS (*arg) & GTK_SHRINK) != 0;
 351       table_child->xfill = (GTK_VALUE_FLAGS (*arg) & GTK_FILL) != 0;
 352       break;
 353     case CHILD_ARG_Y_OPTIONS:
 354       table_child->yexpand = (GTK_VALUE_FLAGS (*arg) & GTK_EXPAND) != 0;
 355       table_child->yshrink = (GTK_VALUE_FLAGS (*arg) & GTK_SHRINK) != 0;
 356       table_child->yfill = (GTK_VALUE_FLAGS (*arg) & GTK_FILL) != 0;
 357       break;
 358     case CHILD_ARG_X_PADDING:
 359       table_child->xpadding = GTK_VALUE_UINT (*arg);
 360       break;
 361     case CHILD_ARG_Y_PADDING:
 362       table_child->ypadding = GTK_VALUE_UINT (*arg);
 363       break;
 364     default:
 365       break;
 366     }
 367   if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (table))
 368     gtk_widget_queue_resize (child);
 369 }
 370
 371 static void
 372 gtk_table_get_child_arg (GtkContainer   *container,
 373                          GtkWidget      *child,
 374                          GtkArg         *arg,
 375                          guint           arg_id)
 376 {
 377   GtkTable *table;
 378   GtkTableChild *table_child;
 379   GList *list;
 380
 381   table = GTK_TABLE (container);
 382   table_child = NULL;
 383   for (list = table->children; list; list = list->next)
 384     {
 385       table_child = list->data;
 386
 387       if (table_child->widget == child)
 388         break;
 389     }
 390   if (!list)
 391     return;
 392
 393   switch (arg_id)
 394     {
 395     case CHILD_ARG_LEFT_ATTACH:
 396       GTK_VALUE_UINT (*arg) = table_child->left_attach;
 397       break;
 398     case CHILD_ARG_RIGHT_ATTACH:
 399       GTK_VALUE_UINT (*arg) = table_child->right_attach;
 400       break;
 401     case CHILD_ARG_TOP_ATTACH:
 402       GTK_VALUE_UINT (*arg) = table_child->top_attach;
 403       break;
 404     case CHILD_ARG_BOTTOM_ATTACH:
 405       GTK_VALUE_UINT (*arg) = table_child->bottom_attach;
 406       break;
 407     case CHILD_ARG_X_OPTIONS:
 408       GTK_VALUE_FLAGS (*arg) = (table_child->xexpand * GTK_EXPAND |
 409                                 table_child->xshrink * GTK_SHRINK |
 410                                 table_child->xfill * GTK_FILL);
 411       break;
 412     case CHILD_ARG_Y_OPTIONS:
 413       GTK_VALUE_FLAGS (*arg) = (table_child->yexpand * GTK_EXPAND |
 414                                 table_child->yshrink * GTK_SHRINK |
 415                                 table_child->yfill * GTK_FILL);
 416       break;
 417     case CHILD_ARG_X_PADDING:
 418       GTK_VALUE_UINT (*arg) = table_child->xpadding;
 419       break;
 420     case CHILD_ARG_Y_PADDING:
 421       GTK_VALUE_UINT (*arg) = table_child->ypadding;
 422       break;
 423     default:
 424       arg->type = GTK_TYPE_INVALID;
 425       break;
 426     }
 427 }
 428
 429 static void
 430 gtk_table_init (GtkTable *table)
 431 {
 432   GTK_WIDGET_SET_FLAGS (table, GTK_NO_WINDOW);
 433
 434   table->children = NULL;
 435   table->rows = NULL;
 436   table->cols = NULL;
 437   table->nrows = 0;
 438   table->ncols = 0;
 439   table->column_spacing = 0;
 440   table->row_spacing = 0;
 441   table->homogeneous = FALSE;
 442
 443   gtk_table_resize (table, 1, 1);
 444 }
 445
 446 GtkWidget*
 447 gtk_table_new (guint    rows,
 448                guint    columns,
 449                gboolean homogeneous)
 450 {
 451   GtkTable *table;
 452
 453   if (rows == 0)
 454           rows = 1;
 455   if (columns == 0)
 456           columns = 1;
 457
 458   table = gtk_type_new (gtk_table_get_type ());
 459
 460   table->homogeneous = (homogeneous ? TRUE : FALSE);
 461
 462   gtk_table_resize (table, rows, columns);
 463
 464   return GTK_WIDGET (table);
 465 }
 466
 467 void
 468 gtk_table_resize (GtkTable *table,
 469                   guint     n_rows,
 470                   guint     n_cols)
 471 {
 472   g_return_if_fail (table != NULL);
 473   g_return_if_fail (GTK_IS_TABLE (table));
 474
 475   n_rows = MAX (n_rows, 1);
 476   n_cols = MAX (n_cols, 1);
 477
 478   if (n_rows != table->nrows ||
 479       n_cols != table->ncols)
 480     {
 481       GList *list;
 482
 483       for (list = table->children; list; list = list->next)
 484         {
 485           GtkTableChild *child;
 486
 487           child = list->data;
 488
 489           n_rows = MAX (n_rows, child->bottom_attach);
 490           n_cols = MAX (n_cols, child->right_attach);
 491         }
 492
 493       if (n_rows != table->nrows)
 494         {
 495           guint i;
 496
 497           i = table->nrows;
 498           table->nrows = n_rows;
 499           table->rows = g_realloc (table->rows, table->nrows * sizeof (GtkTableRowCol));
 500
 501           for (; i < table->nrows; i++)
 502             {
 503               table->rows[i].requisition = 0;
 504               table->rows[i].allocation = 0;
 505               table->rows[i].spacing = table->row_spacing;
 506               table->rows[i].need_expand = 0;
 507               table->rows[i].need_shrink = 0;
 508               table->rows[i].expand = 0;
 509               table->rows[i].shrink = 0;
 510             }
 511
 512           g_object_notify (G_OBJECT (table), "n_rows");
 513         }
 514
 515       if (n_cols != table->ncols)
 516         {
 517           guint i;
 518
 519           i = table->ncols;
 520           table->ncols = n_cols;
 521           table->cols = g_realloc (table->cols, table->ncols * sizeof (GtkTableRowCol));
 522
 523           for (; i < table->ncols; i++)
 524             {
 525               table->cols[i].requisition = 0;
 526               table->cols[i].allocation = 0;
 527               table->cols[i].spacing = table->column_spacing;
 528               table->cols[i].need_expand = 0;
 529               table->cols[i].need_shrink = 0;
 530               table->cols[i].expand = 0;
 531               table->cols[i].shrink = 0;
 532             }
 533
 534           g_object_notify (G_OBJECT (table), "n_columns");
 535         }
 536     }
 537 }
 538
 539 void
 540 gtk_table_attach (GtkTable        *table,
 541                   GtkWidget       *child,
 542                   guint            left_attach,
 543                   guint            right_attach,
 544                   guint            top_attach,
 545                   guint            bottom_attach,
 546                   GtkAttachOptions xoptions,
 547                   GtkAttachOptions yoptions,
 548                   guint            xpadding,
 549                   guint            ypadding)
 550 {
 551   GtkTableChild *table_child;
 552
 553   g_return_if_fail (table != NULL);
 554   g_return_if_fail (GTK_IS_TABLE (table));
 555   g_return_if_fail (child != NULL);
 556   g_return_if_fail (GTK_IS_WIDGET (child));
 557   g_return_if_fail (child->parent == NULL);
 558
 559   /* g_return_if_fail (left_attach >= 0); */
 560   g_return_if_fail (left_attach < right_attach);
 561   /* g_return_if_fail (top_attach >= 0); */
 562   g_return_if_fail (top_attach < bottom_attach);
 563
 564   if (right_attach >= table->ncols)
 565     gtk_table_resize (table, table->nrows, right_attach);
 566
 567   if (bottom_attach >= table->nrows)
 568     gtk_table_resize (table, bottom_attach, table->ncols);
 569
 570   table_child = g_new (GtkTableChild, 1);
 571   table_child->widget = child;
 572   table_child->left_attach = left_attach;
 573   table_child->right_attach = right_attach;
 574   table_child->top_attach = top_attach;
 575   table_child->bottom_attach = bottom_attach;
 576   table_child->xexpand = (xoptions & GTK_EXPAND) != 0;
 577   table_child->xshrink = (xoptions & GTK_SHRINK) != 0;
 578   table_child->xfill = (xoptions & GTK_FILL) != 0;
 579   table_child->xpadding = xpadding;
 580   table_child->yexpand = (yoptions & GTK_EXPAND) != 0;
 581   table_child->yshrink = (yoptions & GTK_SHRINK) != 0;
 582   table_child->yfill = (yoptions & GTK_FILL) != 0;
 583   table_child->ypadding = ypadding;
 584
 585   table->children = g_list_prepend (table->children, table_child);
 586
 587   gtk_widget_set_parent (child, GTK_WIDGET (table));
 588
 589   if (GTK_WIDGET_REALIZED (child->parent))
 590     gtk_widget_realize (child);
 591
 592   if (GTK_WIDGET_VISIBLE (child->parent) && GTK_WIDGET_VISIBLE (child))
 593     {
 594       if (GTK_WIDGET_MAPPED (child->parent))
 595         gtk_widget_map (child);
 596
 597       gtk_widget_queue_resize (child);
 598     }
 599 }
 600
 601 void
 602 gtk_table_attach_defaults (GtkTable  *table,
 603                            GtkWidget *widget,
 604                            guint      left_attach,
 605                            guint      right_attach,
 606                            guint      top_attach,
 607                            guint      bottom_attach)
 608 {
 609   gtk_table_attach (table, widget,
 610                     left_attach, right_attach,
 611                     top_attach, bottom_attach,
 612                     GTK_EXPAND | GTK_FILL,
 613                     GTK_EXPAND | GTK_FILL,
 614                     0, 0);
 615 }
 616
 617 void
 618 gtk_table_set_row_spacing (GtkTable *table,
 619                            guint     row,
 620                            guint     spacing)
 621 {
 622   g_return_if_fail (table != NULL);
 623   g_return_if_fail (GTK_IS_TABLE (table));
 624   g_return_if_fail (row < table->nrows);
 625
 626   if (table->rows[row].spacing != spacing)
 627     {
 628       table->rows[row].spacing = spacing;
 629
 630       if (GTK_WIDGET_VISIBLE (table))
 631         gtk_widget_queue_resize (GTK_WIDGET (table));
 632     }
 633
 634   g_object_notify (G_OBJECT (table), "row_spacing");
 635 }
 636
 637 void
 638 gtk_table_set_col_spacing (GtkTable *table,
 639                            guint     column,
 640                            guint     spacing)
 641 {
 642   g_return_if_fail (table != NULL);
 643   g_return_if_fail (GTK_IS_TABLE (table));
 644   g_return_if_fail (column < table->ncols);
 645
 646   if (table->cols[column].spacing != spacing)
 647     {
 648       table->cols[column].spacing = spacing;
 649
 650       if (GTK_WIDGET_VISIBLE (table))
 651         gtk_widget_queue_resize (GTK_WIDGET (table));
 652     }
 653
 654   g_object_notify (G_OBJECT (table), "column_spacing");
 655 }
 656
 657 void
 658 gtk_table_set_row_spacings (GtkTable *table,
 659                             guint     spacing)
 660 {
 661   guint row;
 662
 663   g_return_if_fail (table != NULL);
 664   g_return_if_fail (GTK_IS_TABLE (table));
 665
 666   table->row_spacing = spacing;
 667   for (row = 0; row < table->nrows; row++)
 668     table->rows[row].spacing = spacing;
 669
 670   if (GTK_WIDGET_VISIBLE (table))
 671     gtk_widget_queue_resize (GTK_WIDGET (table));
 672 }
 673
 674 void
 675 gtk_table_set_col_spacings (GtkTable *table,
 676                             guint     spacing)
 677 {
 678   guint col;
 679
 680   g_return_if_fail (table != NULL);
 681   g_return_if_fail (GTK_IS_TABLE (table));
 682
 683   table->column_spacing = spacing;
 684   for (col = 0; col < table->ncols; col++)
 685     table->cols[col].spacing = spacing;
 686
 687   if (GTK_WIDGET_VISIBLE (table))
 688     gtk_widget_queue_resize (GTK_WIDGET (table));
 689 }
 690
 691 void
 692 gtk_table_set_homogeneous (GtkTable *table,
 693                            gboolean  homogeneous)
 694 {
 695   g_return_if_fail (table != NULL);
 696   g_return_if_fail (GTK_IS_TABLE (table));
 697
 698   homogeneous = (homogeneous != 0);
 699   if (homogeneous != table->homogeneous)
 700     {
 701       table->homogeneous = homogeneous;
 702
 703       if (GTK_WIDGET_VISIBLE (table))
 704         gtk_widget_queue_resize (GTK_WIDGET (table));
 705     }
 706 }
 707
 708 static void
 709 gtk_table_finalize (GObject *object)
 710 {
 711   GtkTable *table;
 712
 713   g_return_if_fail (GTK_IS_TABLE (object));
 714
 715   table = GTK_TABLE (object);
 716
 717   g_free (table->rows);
 718   g_free (table->cols);
 719
 720   G_OBJECT_CLASS (parent_class)->finalize (object);
 721 }
 722
 723 static void
 724 gtk_table_map (GtkWidget *widget)
 725 {
 726   GtkTable *table;
 727   GtkTableChild *child;
 728   GList *children;
 729
 730   g_return_if_fail (widget != NULL);
 731   g_return_if_fail (GTK_IS_TABLE (widget));
 732
 733   table = GTK_TABLE (widget);
 734   GTK_WIDGET_SET_FLAGS (table, GTK_MAPPED);
 735
 736   children = table->children;
 737   while (children)
 738     {
 739       child = children->data;
 740       children = children->next;
 741
 742       if (GTK_WIDGET_VISIBLE (child->widget) &&
 743           !GTK_WIDGET_MAPPED (child->widget))
 744         gtk_widget_map (child->widget);
 745     }
 746 }
 747
 748 static void
 749 gtk_table_unmap (GtkWidget *widget)
 750 {
 751   GtkTable *table;
 752   GtkTableChild *child;
 753   GList *children;
 754
 755   g_return_if_fail (widget != NULL);
 756   g_return_if_fail (GTK_IS_TABLE (widget));
 757
 758   table = GTK_TABLE (widget);
 759   GTK_WIDGET_UNSET_FLAGS (table, GTK_MAPPED);
 760
 761   children = table->children;
 762   while (children)
 763     {
 764       child = children->data;
 765       children = children->next;
 766
 767       if (GTK_WIDGET_VISIBLE (child->widget) &&
 768           GTK_WIDGET_MAPPED (child->widget))
 769         gtk_widget_unmap (child->widget);
 770     }
 771 }
 772
 773 static void
 774 gtk_table_size_request (GtkWidget      *widget,
 775                         GtkRequisition *requisition)
 776 {
 777   GtkTable *table;
 778   gint row, col;
 779
 780   g_return_if_fail (widget != NULL);
 781   g_return_if_fail (GTK_IS_TABLE (widget));
 782   g_return_if_fail (requisition != NULL);
 783
 784   table = GTK_TABLE (widget);
 785
 786   requisition->width = 0;
 787   requisition->height = 0;
 788
 789   gtk_table_size_request_init (table);
 790   gtk_table_size_request_pass1 (table);
 791   gtk_table_size_request_pass2 (table);
 792   gtk_table_size_request_pass3 (table);
 793   gtk_table_size_request_pass2 (table);
 794
 795   for (col = 0; col < table->ncols; col++)
 796     requisition->width += table->cols[col].requisition;
 797   for (col = 0; col + 1 < table->ncols; col++)
 798     requisition->width += table->cols[col].spacing;
 799
 800   for (row = 0; row < table->nrows; row++)
 801     requisition->height += table->rows[row].requisition;
 802   for (row = 0; row + 1 < table->nrows; row++)
 803     requisition->height += table->rows[row].spacing;
 804
 805   requisition->width += GTK_CONTAINER (table)->border_width * 2;
 806   requisition->height += GTK_CONTAINER (table)->border_width * 2;
 807 }
 808
 809 static void
 810 gtk_table_size_allocate (GtkWidget     *widget,
 811                          GtkAllocation *allocation)
 812 {
 813   GtkTable *table;
 814
 815   g_return_if_fail (widget != NULL);
 816   g_return_if_fail (GTK_IS_TABLE (widget));
 817   g_return_if_fail (allocation != NULL);
 818
 819   widget->allocation = *allocation;
 820   table = GTK_TABLE (widget);
 821
 822   gtk_table_size_allocate_init (table);
 823   gtk_table_size_allocate_pass1 (table);
 824   gtk_table_size_allocate_pass2 (table);
 825 }
 826
 827 static void
 828 gtk_table_add (GtkContainer *container,
 829                GtkWidget    *widget)
 830 {
 831   g_return_if_fail (container != NULL);
 832   g_return_if_fail (GTK_IS_TABLE (container));
 833   g_return_if_fail (widget != NULL);
 834
 835   gtk_table_attach_defaults (GTK_TABLE (container), widget, 0, 1, 0, 1);
 836 }
 837
 838 static void
 839 gtk_table_remove (GtkContainer *container,
 840                   GtkWidget    *widget)
 841 {
 842   GtkTable *table;
 843   GtkTableChild *child;
 844   GList *children;
 845
 846   g_return_if_fail (container != NULL);
 847   g_return_if_fail (GTK_IS_TABLE (container));
 848   g_return_if_fail (widget != NULL);
 849
 850   table = GTK_TABLE (container);
 851   children = table->children;
 852
 853   while (children)
 854     {
 855       child = children->data;
 856       children = children->next;
 857
 858       if (child->widget == widget)
 859         {
 860           gboolean was_visible = GTK_WIDGET_VISIBLE (widget);
 861
 862           gtk_widget_unparent (widget);
 863
 864           table->children = g_list_remove (table->children, child);
 865           g_free (child);
 866
 867           if (was_visible && GTK_WIDGET_VISIBLE (container))
 868             gtk_container_queue_resize (container);
 869           break;
 870         }
 871     }
 872 }
 873
 874 static void
 875 gtk_table_forall (GtkContainer *container,
 876                   gboolean      include_internals,
 877                   GtkCallback   callback,
 878                   gpointer      callback_data)
 879 {
 880   GtkTable *table;
 881   GtkTableChild *child;
 882   GList *children;
 883
 884   g_return_if_fail (container != NULL);
 885   g_return_if_fail (GTK_IS_TABLE (container));
 886   g_return_if_fail (callback != NULL);
 887
 888   table = GTK_TABLE (container);
 889   children = table->children;
 890
 891   while (children)
 892     {
 893       child = children->data;
 894       children = children->next;
 895
 896       (* callback) (child->widget, callback_data);
 897     }
 898 }
 899
 900 static void
 901 gtk_table_size_request_init (GtkTable *table)
 902 {
 903   GtkTableChild *child;
 904   GList *children;
 905   gint row, col;
 906
 907   for (row = 0; row < table->nrows; row++)
 908     table->rows[row].requisition = 0;
 909   for (col = 0; col < table->ncols; col++)
 910     table->cols[col].requisition = 0;
 911
 912   children = table->children;
 913   while (children)
 914     {
 915       child = children->data;
 916       children = children->next;
 917
 918       if (GTK_WIDGET_VISIBLE (child->widget))
 919         gtk_widget_size_request (child->widget, NULL);
 920     }
 921 }
 922
 923 static void
 924 gtk_table_size_request_pass1 (GtkTable *table)
 925 {
 926   GtkTableChild *child;
 927   GList *children;
 928   gint width;
 929   gint height;
 930
 931   children = table->children;
 932   while (children)
 933     {
 934       child = children->data;
 935       children = children->next;
 936
 937       if (GTK_WIDGET_VISIBLE (child->widget))
 938         {
 939           GtkRequisition child_requisition;
 940           gtk_widget_get_child_requisition (child->widget, &child_requisition);
 941
 942           /* Child spans a single column.
 943            */
 944           if (child->left_attach == (child->right_attach - 1))
 945             {
 946               width = child_requisition.width + child->xpadding * 2;
 947               table->cols[child->left_attach].requisition = MAX (table->cols[child->left_attach].requisition, width);
 948             }
 949
 950           /* Child spans a single row.
 951            */
 952           if (child->top_attach == (child->bottom_attach - 1))
 953             {
 954               height = child_requisition.height + child->ypadding * 2;
 955               table->rows[child->top_attach].requisition = MAX (table->rows[child->top_attach].requisition, height);
 956             }
 957         }
 958     }
 959 }
 960
 961 static void
 962 gtk_table_size_request_pass2 (GtkTable *table)
 963 {
 964   gint max_width;
 965   gint max_height;
 966   gint row, col;
 967
 968   if (table->homogeneous)
 969     {
 970       max_width = 0;
 971       max_height = 0;
 972
 973       for (col = 0; col < table->ncols; col++)
 974         max_width = MAX (max_width, table->cols[col].requisition);
 975       for (row = 0; row < table->nrows; row++)
 976         max_height = MAX (max_height, table->rows[row].requisition);
 977
 978       for (col = 0; col < table->ncols; col++)
 979         table->cols[col].requisition = max_width;
 980       for (row = 0; row < table->nrows; row++)
 981         table->rows[row].requisition = max_height;
 982     }
 983 }
 984
 985 static void
 986 gtk_table_size_request_pass3 (GtkTable *table)
 987 {
 988   GtkTableChild *child;
 989   GList *children;
 990   gint width, height;
 991   gint row, col;
 992   gint extra;
 993
 994   children = table->children;
 995   while (children)
 996     {
 997       child = children->data;
 998       children = children->next;
 999
1000       if (GTK_WIDGET_VISIBLE (child->widget))
1001         {
1002           /* Child spans multiple columns.
1003            */
1004           if (child->left_attach != (child->right_attach - 1))
1005             {
1006               GtkRequisition child_requisition;
1007
1008               gtk_widget_get_child_requisition (child->widget, &child_requisition);
1009
1010               /* Check and see if there is already enough space
1011                *  for the child.
1012                */
1013               width = 0;
1014               for (col = child->left_attach; col < child->right_attach; col++)
1015                 {
1016                   width += table->cols[col].requisition;
1017                   if ((col + 1) < child->right_attach)
1018                     width += table->cols[col].spacing;
1019                 }
1020
1021               /* If we need to request more space for this child to fill
1022                *  its requisition, then divide up the needed space evenly
1023                *  amongst the columns it spans.
1024                */
1025               if (width < child_requisition.width + child->xpadding * 2)
1026                 {
1027                   width = child_requisition.width + child->xpadding * 2 - width;
1028
1029                   for (col = child->left_attach; col < child->right_attach; col++)
1030                     {
1031                       extra = width / (child->right_attach - col);
1032                       table->cols[col].requisition += extra;
1033                       width -= extra;
1034                     }
1035                 }
1036             }
1037
1038           /* Child spans multiple rows.
1039            */
1040           if (child->top_attach != (child->bottom_attach - 1))
1041             {
1042               GtkRequisition child_requisition;
1043
1044               gtk_widget_get_child_requisition (child->widget, &child_requisition);
1045
1046               /* Check and see if there is already enough space
1047                *  for the child.
1048                */
1049               height = 0;
1050               for (row = child->top_attach; row < child->bottom_attach; row++)
1051                 {
1052                   height += table->rows[row].requisition;
1053                   if ((row + 1) < child->bottom_attach)
1054                     height += table->rows[row].spacing;
1055                 }
1056
1057               /* If we need to request more space for this child to fill
1058                *  its requisition, then divide up the needed space evenly
1059                *  amongst the columns it spans.
1060                */
1061               if (height < child_requisition.height + child->ypadding * 2)
1062                 {
1063                   height = child_requisition.height + child->ypadding * 2 - height;
1064
1065                   for (row = child->top_attach; row < child->bottom_attach; row++)
1066                     {
1067                       extra = height / (child->bottom_attach - row);
1068                       table->rows[row].requisition += extra;
1069                       height -= extra;
1070                     }
1071                 }
1072             }
1073         }
1074     }
1075 }
1076
1077 static void
1078 gtk_table_size_allocate_init (GtkTable *table)
1079 {
1080   GtkTableChild *child;
1081   GList *children;
1082   gint row, col;
1083   gint has_expand;
1084   gint has_shrink;
1085
1086   /* Initialize the rows and cols.
1087    *  By default, rows and cols do not expand and do shrink.
1088    *  Those values are modified by the children that occupy
1089    *  the rows and cols.
1090    */
1091   for (col = 0; col < table->ncols; col++)
1092     {
1093       table->cols[col].allocation = table->cols[col].requisition;
1094       table->cols[col].need_expand = FALSE;
1095       table->cols[col].need_shrink = TRUE;
1096       table->cols[col].expand = FALSE;
1097       table->cols[col].shrink = TRUE;
1098       table->cols[col].empty = TRUE;
1099     }
1100   for (row = 0; row < table->nrows; row++)
1101     {
1102       table->rows[row].allocation = table->rows[row].requisition;
1103       table->rows[row].need_expand = FALSE;
1104       table->rows[row].need_shrink = TRUE;
1105       table->rows[row].expand = FALSE;
1106       table->rows[row].shrink = TRUE;
1107       table->rows[row].empty = TRUE;
1108     }
1109
1110   /* Loop over all the children and adjust the row and col values
1111    *  based on whether the children want to be allowed to expand
1112    *  or shrink. This loop handles children that occupy a single
1113    *  row or column.
1114    */
1115   children = table->children;
1116   while (children)
1117     {
1118       child = children->data;
1119       children = children->next;
1120
1121       if (GTK_WIDGET_VISIBLE (child->widget))
1122         {
1123           if (child->left_attach == (child->right_attach - 1))
1124             {
1125               if (child->xexpand)
1126                 table->cols[child->left_attach].expand = TRUE;
1127
1128               if (!child->xshrink)
1129                 table->cols[child->left_attach].shrink = FALSE;
1130
1131               table->cols[child->left_attach].empty = FALSE;
1132             }
1133
1134           if (child->top_attach == (child->bottom_attach - 1))
1135             {
1136               if (child->yexpand)
1137                 table->rows[child->top_attach].expand = TRUE;
1138
1139               if (!child->yshrink)
1140                 table->rows[child->top_attach].shrink = FALSE;
1141
1142               table->rows[child->top_attach].empty = FALSE;
1143             }
1144         }
1145     }
1146
1147   /* Loop over all the children again and this time handle children
1148    *  which span multiple rows or columns.
1149    */
1150   children = table->children;
1151   while (children)
1152     {
1153       child = children->data;
1154       children = children->next;
1155
1156       if (GTK_WIDGET_VISIBLE (child->widget))
1157         {
1158           if (child->left_attach != (child->right_attach - 1))
1159             {
1160               for (col = child->left_attach; col < child->right_attach; col++)
1161                 table->cols[col].empty = FALSE;
1162
1163               if (child->xexpand)
1164                 {
1165                   has_expand = FALSE;
1166                   for (col = child->left_attach; col < child->right_attach; col++)
1167                     if (table->cols[col].expand)
1168                       {
1169                         has_expand = TRUE;
1170                         break;
1171                       }
1172
1173                   if (!has_expand)
1174                     for (col = child->left_attach; col < child->right_attach; col++)
1175                       table->cols[col].need_expand = TRUE;
1176                 }
1177
1178               if (!child->xshrink)
1179                 {
1180                   has_shrink = TRUE;
1181                   for (col = child->left_attach; col < child->right_attach; col++)
1182                     if (!table->cols[col].shrink)
1183                       {
1184                         has_shrink = FALSE;
1185                         break;
1186                       }
1187
1188                   if (has_shrink)
1189                     for (col = child->left_attach; col < child->right_attach; col++)
1190                       table->cols[col].need_shrink = FALSE;
1191                 }
1192             }
1193
1194           if (child->top_attach != (child->bottom_attach - 1))
1195             {
1196               for (row = child->top_attach; row < child->bottom_attach; row++)
1197                 table->rows[row].empty = FALSE;
1198
1199               if (child->yexpand)
1200                 {
1201                   has_expand = FALSE;
1202                   for (row = child->top_attach; row < child->bottom_attach; row++)
1203                     if (table->rows[row].expand)
1204                       {
1205                         has_expand = TRUE;
1206                         break;
1207                       }
1208
1209                   if (!has_expand)
1210                     for (row = child->top_attach; row < child->bottom_attach; row++)
1211                       table->rows[row].need_expand = TRUE;
1212                 }
1213
1214               if (!child->yshrink)
1215                 {
1216                   has_shrink = TRUE;
1217                   for (row = child->top_attach; row < child->bottom_attach; row++)
1218                     if (!table->rows[row].shrink)
1219                       {
1220                         has_shrink = FALSE;
1221                         break;
1222                       }
1223
1224                   if (has_shrink)
1225                     for (row = child->top_attach; row < child->bottom_attach; row++)
1226                       table->rows[row].need_shrink = FALSE;
1227                 }
1228             }
1229         }
1230     }
1231
1232   /* Loop over the columns and set the expand and shrink values
1233    *  if the column can be expanded or shrunk.
1234    */
1235   for (col = 0; col < table->ncols; col++)
1236     {
1237       if (table->cols[col].empty)
1238         {
1239           table->cols[col].expand = FALSE;
1240           table->cols[col].shrink = FALSE;
1241         }
1242       else
1243         {
1244           if (table->cols[col].need_expand)
1245             table->cols[col].expand = TRUE;
1246           if (!table->cols[col].need_shrink)
1247             table->cols[col].shrink = FALSE;
1248         }
1249     }
1250
1251   /* Loop over the rows and set the expand and shrink values
1252    *  if the row can be expanded or shrunk.
1253    */
1254   for (row = 0; row < table->nrows; row++)
1255     {
1256       if (table->rows[row].empty)
1257         {
1258           table->rows[row].expand = FALSE;
1259           table->rows[row].shrink = FALSE;
1260         }
1261       else
1262         {
1263           if (table->rows[row].need_expand)
1264             table->rows[row].expand = TRUE;
1265           if (!table->rows[row].need_shrink)
1266             table->rows[row].shrink = FALSE;
1267         }
1268     }
1269 }
1270
1271 static void
1272 gtk_table_size_allocate_pass1 (GtkTable *table)
1273 {
1274   gint real_width;
1275   gint real_height;
1276   gint width, height;
1277   gint row, col;
1278   gint nexpand;
1279   gint nshrink;
1280   gint extra;
1281
1282   /* If we were allocated more space than we requested
1283    *  then we have to expand any expandable rows and columns
1284    *  to fill in the extra space.
1285    */
1286
1287   real_width = GTK_WIDGET (table)->allocation.width - GTK_CONTAINER (table)->border_width * 2;
1288   real_height = GTK_WIDGET (table)->allocation.height - GTK_CONTAINER (table)->border_width * 2;
1289
1290   if (table->homogeneous)
1291     {
1292       nexpand = 0;
1293       for (col = 0; col < table->ncols; col++)
1294         if (table->cols[col].expand)
1295           {
1296             nexpand += 1;
1297             break;
1298           }
1299
1300       if (nexpand > 0)
1301         {
1302           width = real_width;
1303
1304           for (col = 0; col + 1 < table->ncols; col++)
1305             width -= table->cols[col].spacing;
1306
1307           for (col = 0; col < table->ncols; col++)
1308             {
1309               extra = width / (table->ncols - col);
1310               table->cols[col].allocation = MAX (1, extra);
1311               width -= extra;
1312             }
1313         }
1314     }
1315   else
1316     {
1317       width = 0;
1318       nexpand = 0;
1319       nshrink = 0;
1320
1321       for (col = 0; col < table->ncols; col++)
1322         {
1323           width += table->cols[col].requisition;
1324           if (table->cols[col].expand)
1325             nexpand += 1;
1326           if (table->cols[col].shrink)
1327             nshrink += 1;
1328         }
1329       for (col = 0; col + 1 < table->ncols; col++)
1330         width += table->cols[col].spacing;
1331
1332       /* Check to see if we were allocated more width than we requested.
1333        */
1334       if ((width < real_width) && (nexpand >= 1))
1335         {
1336           width = real_width - width;
1337
1338           for (col = 0; col < table->ncols; col++)
1339             if (table->cols[col].expand)
1340               {
1341                 extra = width / nexpand;
1342                 table->cols[col].allocation += extra;
1343
1344                 width -= extra;
1345                 nexpand -= 1;
1346               }
1347         }
1348
1349       /* Check to see if we were allocated less width than we requested,
1350        * then shrink until we fit the size give.
1351        */
1352       if (width > real_width)
1353         {
1354           gint total_nshrink = nshrink;
1355
1356           extra = width - real_width;
1357           while (total_nshrink > 0 && extra > 0)
1358             {
1359               nshrink = total_nshrink;
1360               for (col = 0; col < table->ncols; col++)
1361                 if (table->cols[col].shrink)
1362                   {
1363                     gint allocation = table->cols[col].allocation;
1364
1365                     table->cols[col].allocation = MAX (1, (gint) table->cols[col].allocation - extra / nshrink);
1366                     extra -= allocation - table->cols[col].allocation;
1367                     nshrink -= 1;
1368                     if (table->cols[col].allocation < 2)
1369                       {
1370                         total_nshrink -= 1;
1371                         table->cols[col].shrink = FALSE;
1372                       }
1373                   }
1374             }
1375         }
1376     }
1377
1378   if (table->homogeneous)
1379     {
1380       nexpand = 0;
1381       for (row = 0; row < table->nrows; row++)
1382         if (table->rows[row].expand)
1383           {
1384             nexpand += 1;
1385             break;
1386           }
1387
1388       if (nexpand > 0)
1389         {
1390           height = real_height;
1391
1392           for (row = 0; row + 1 < table->nrows; row++)
1393             height -= table->rows[row].spacing;
1394
1395
1396           for (row = 0; row < table->nrows; row++)
1397             {
1398               extra = height / (table->nrows - row);
1399               table->rows[row].allocation = MAX (1, extra);
1400               height -= extra;
1401             }
1402         }
1403     }
1404   else
1405     {
1406       height = 0;
1407       nexpand = 0;
1408       nshrink = 0;
1409
1410       for (row = 0; row < table->nrows; row++)
1411         {
1412           height += table->rows[row].requisition;
1413           if (table->rows[row].expand)
1414             nexpand += 1;
1415           if (table->rows[row].shrink)
1416             nshrink += 1;
1417         }
1418       for (row = 0; row + 1 < table->nrows; row++)
1419         height += table->rows[row].spacing;
1420
1421       /* Check to see if we were allocated more height than we requested.
1422        */
1423       if ((height < real_height) && (nexpand >= 1))
1424         {
1425           height = real_height - height;
1426
1427           for (row = 0; row < table->nrows; row++)
1428             if (table->rows[row].expand)
1429               {
1430                 extra = height / nexpand;
1431                 table->rows[row].allocation += extra;
1432
1433                 height -= extra;
1434                 nexpand -= 1;
1435               }
1436         }
1437
1438       /* Check to see if we were allocated less height than we requested.
1439        * then shrink until we fit the size give.
1440        */
1441       if (height > real_height)
1442         {
1443           gint total_nshrink = nshrink;
1444
1445           extra = height - real_height;
1446           while (total_nshrink > 0 && extra > 0)
1447             {
1448               nshrink = total_nshrink;
1449               for (row = 0; row < table->nrows; row++)
1450                 if (table->rows[row].shrink)
1451                   {
1452                     gint allocation = table->rows[row].allocation;
1453
1454                     table->rows[row].allocation = MAX (1, (gint) table->rows[row].allocation - extra / nshrink);
1455                     extra -= allocation - table->rows[row].allocation;
1456                     nshrink -= 1;
1457                     if (table->rows[row].allocation < 2)
1458                       {
1459                         total_nshrink -= 1;
1460                         table->rows[row].shrink = FALSE;
1461                       }
1462                   }
1463             }
1464         }
1465     }
1466 }
1467
1468 static void
1469 gtk_table_size_allocate_pass2 (GtkTable *table)
1470 {
1471   GtkTableChild *child;
1472   GList *children;
1473   gint max_width;
1474   gint max_height;
1475   gint x, y;
1476   gint row, col;
1477   GtkAllocation allocation;
1478   GtkWidget *widget = GTK_WIDGET (table);
1479
1480   children = table->children;
1481   while (children)
1482     {
1483       child = children->data;
1484       children = children->next;
1485
1486       if (GTK_WIDGET_VISIBLE (child->widget))
1487         {
1488           GtkRequisition child_requisition;
1489           gtk_widget_get_child_requisition (child->widget, &child_requisition);
1490
1491           x = GTK_WIDGET (table)->allocation.x + GTK_CONTAINER (table)->border_width;
1492           y = GTK_WIDGET (table)->allocation.y + GTK_CONTAINER (table)->border_width;
1493           max_width = 0;
1494           max_height = 0;
1495
1496           for (col = 0; col < child->left_attach; col++)
1497             {
1498               x += table->cols[col].allocation;
1499               x += table->cols[col].spacing;
1500             }
1501
1502           for (col = child->left_attach; col < child->right_attach; col++)
1503             {
1504               max_width += table->cols[col].allocation;
1505               if ((col + 1) < child->right_attach)
1506                 max_width += table->cols[col].spacing;
1507             }
1508
1509           for (row = 0; row < child->top_attach; row++)
1510             {
1511               y += table->rows[row].allocation;
1512               y += table->rows[row].spacing;
1513             }
1514
1515           for (row = child->top_attach; row < child->bottom_attach; row++)
1516             {
1517               max_height += table->rows[row].allocation;
1518               if ((row + 1) < child->bottom_attach)
1519                 max_height += table->rows[row].spacing;
1520             }
1521
1522           if (child->xfill)
1523             {
1524               allocation.width = MAX (1, max_width - (gint)child->xpadding * 2);
1525               allocation.x = x + (max_width - allocation.width) / 2;
1526             }
1527           else
1528             {
1529               allocation.width = child_requisition.width;
1530               allocation.x = x + (max_width - allocation.width) / 2;
1531             }
1532
1533           if (child->yfill)
1534             {
1535               allocation.height = MAX (1, max_height - (gint)child->ypadding * 2);
1536               allocation.y = y + (max_height - allocation.height) / 2;
1537             }
1538           else
1539             {
1540               allocation.height = child_requisition.height;
1541               allocation.y = y + (max_height - allocation.height) / 2;
1542             }
1543
1544           if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
1545             allocation.x = widget->allocation.x + widget->allocation.width
1546               - (allocation.x - widget->allocation.x) - allocation.width;
1547
1548           gtk_widget_size_allocate (child->widget, &allocation);
1549         }
1550     }
1551 }