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

   1 /* GtkToolPalette -- A tool palette with categories and DnD support
   2  * Copyright (C) 2008  Openismus GmbH
   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 2.1 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 Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  *
  18  * Authors:
  19  *      Mathias Hasselmann
  20  *      Jan Arne Petersen
  21  */
  22
  23 #include "config.h"
  24
  25 #include "gtktoolpaletteprivate.h"
  26
  27 #include <gtk/gtk.h>
  28 #include <math.h>
  29 #include <string.h>
  30 #include "gtkprivate.h"
  31 #include "gtkintl.h"
  32 #include "gtkalias.h"
  33
  34 #define ANIMATION_TIMEOUT        50
  35 #define ANIMATION_DURATION      (ANIMATION_TIMEOUT * 4)
  36 #define DEFAULT_ANIMATION_STATE  TRUE
  37 #define DEFAULT_EXPANDER_SIZE    16
  38 #define DEFAULT_HEADER_SPACING   2
  39
  40 #define DEFAULT_LABEL            ""
  41 #define DEFAULT_COLLAPSED        FALSE
  42 #define DEFAULT_ELLIPSIZE        PANGO_ELLIPSIZE_NONE
  43
  44 /**
  45  * SECTION:gtktoolitemgroup
  46  * @Short_description: A sub container used in a tool palette
  47  * @Title: GtkToolItemGroup
  48  *
  49  * A #GtkToolItemGroup is used together with #GtkToolPalette to add
  50  * #GtkToolItem<!-- -->s to a palette like container with different
  51  * categories and drag and drop support.
  52  *
  53  * Since: 2.20
  54  */
  55
  56 enum
  57 {
  58   PROP_NONE,
  59   PROP_LABEL,
  60   PROP_LABEL_WIDGET,
  61   PROP_COLLAPSED,
  62   PROP_ELLIPSIZE,
  63   PROP_RELIEF
  64 };
  65
  66 enum
  67 {
  68   CHILD_PROP_NONE,
  69   CHILD_PROP_HOMOGENEOUS,
  70   CHILD_PROP_EXPAND,
  71   CHILD_PROP_FILL,
  72   CHILD_PROP_NEW_ROW,
  73   CHILD_PROP_POSITION,
  74 };
  75
  76 typedef struct _GtkToolItemGroupChild GtkToolItemGroupChild;
  77
  78 struct _GtkToolItemGroupPrivate
  79 {
  80   GtkWidget         *header;
  81   GtkWidget         *label_widget;
  82
  83   GList             *children;
  84
  85   gboolean           animation;
  86   gint64             animation_start;
  87   GSource           *animation_timeout;
  88   GtkExpanderStyle   expander_style;
  89   gint               expander_size;
  90   gint               header_spacing;
  91   PangoEllipsizeMode ellipsize;
  92
  93   gulong             focus_set_id;
  94   GtkWidget         *toplevel;
  95
  96   GtkSettings       *settings;
  97   gulong             settings_connection;
  98
  99   guint              collapsed : 1;
 100 };
 101
 102 struct _GtkToolItemGroupChild
 103 {
 104   GtkToolItem *item;
 105
 106   guint        homogeneous : 1;
 107   guint        expand : 1;
 108   guint        fill : 1;
 109   guint        new_row : 1;
 110 };
 111
 112 static void gtk_tool_item_group_tool_shell_init (GtkToolShellIface *iface);
 113
 114 G_DEFINE_TYPE_WITH_CODE (GtkToolItemGroup, gtk_tool_item_group, GTK_TYPE_CONTAINER,
 115 G_IMPLEMENT_INTERFACE (GTK_TYPE_TOOL_SHELL, gtk_tool_item_group_tool_shell_init));
 116
 117 static GtkWidget*
 118 gtk_tool_item_group_get_alignment (GtkToolItemGroup *group)
 119 {
 120   return gtk_bin_get_child (GTK_BIN (group->priv->header));
 121 }
 122
 123 static GtkOrientation
 124 gtk_tool_item_group_get_orientation (GtkToolShell *shell)
 125 {
 126   GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (shell));
 127
 128   if (GTK_IS_TOOL_PALETTE (parent))
 129     return gtk_orientable_get_orientation (GTK_ORIENTABLE (parent));
 130
 131   return GTK_ORIENTATION_VERTICAL;
 132 }
 133
 134 static GtkToolbarStyle
 135 gtk_tool_item_group_get_style (GtkToolShell *shell)
 136 {
 137   GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (shell));
 138
 139   if (GTK_IS_TOOL_PALETTE (parent))
 140     return gtk_tool_palette_get_style (GTK_TOOL_PALETTE (parent));
 141
 142   return GTK_TOOLBAR_ICONS;
 143 }
 144
 145 static GtkIconSize
 146 gtk_tool_item_group_get_icon_size (GtkToolShell *shell)
 147 {
 148   GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (shell));
 149
 150   if (GTK_IS_TOOL_PALETTE (parent))
 151     return gtk_tool_palette_get_icon_size (GTK_TOOL_PALETTE (parent));
 152
 153   return GTK_ICON_SIZE_SMALL_TOOLBAR;
 154 }
 155
 156 static PangoEllipsizeMode
 157 gtk_tool_item_group_get_ellipsize_mode (GtkToolShell *shell)
 158 {
 159   return GTK_TOOL_ITEM_GROUP (shell)->priv->ellipsize;
 160 }
 161
 162 static gfloat
 163 gtk_tool_item_group_get_text_alignment (GtkToolShell *shell)
 164 {
 165   if (GTK_TOOLBAR_TEXT == gtk_tool_item_group_get_style (shell) ||
 166       GTK_TOOLBAR_BOTH_HORIZ == gtk_tool_item_group_get_style (shell))
 167     return 0.0;
 168
 169   return 0.5;
 170 }
 171
 172 static GtkOrientation
 173 gtk_tool_item_group_get_text_orientation (GtkToolShell *shell)
 174 {
 175   return GTK_ORIENTATION_HORIZONTAL;
 176 }
 177
 178 static GtkSizeGroup *
 179 gtk_tool_item_group_get_text_size_group (GtkToolShell *shell)
 180 {
 181   GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (shell));
 182
 183   if (GTK_IS_TOOL_PALETTE (parent))
 184     return _gtk_tool_palette_get_size_group (GTK_TOOL_PALETTE (parent));
 185
 186   return NULL;
 187 }
 188
 189 static void
 190 animation_change_notify (GtkToolItemGroup *group)
 191 {
 192   GtkSettings *settings = group->priv->settings;
 193   gboolean animation;
 194
 195   if (settings)
 196     g_object_get (settings,
 197                   "gtk-enable-animations", &animation,
 198                   NULL);
 199   else
 200     animation = DEFAULT_ANIMATION_STATE;
 201
 202   group->priv->animation = animation;
 203 }
 204
 205 static void
 206 gtk_tool_item_group_settings_change_notify (GtkSettings      *settings,
 207                                             const GParamSpec *pspec,
 208                                             GtkToolItemGroup *group)
 209 {
 210   if (strcmp (pspec->name, "gtk-enable-animations") == 0)
 211     animation_change_notify (group);
 212 }
 213
 214 static void
 215 gtk_tool_item_group_screen_changed (GtkWidget *widget,
 216                                     GdkScreen *previous_screen)
 217 {
 218   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (widget);
 219   GtkToolItemGroupPrivate* priv = group->priv;
 220   GtkSettings *old_settings = priv->settings;
 221   GtkSettings *settings;
 222
 223   if (gtk_widget_has_screen (GTK_WIDGET (group)))
 224     settings = gtk_widget_get_settings (GTK_WIDGET (group));
 225   else
 226     settings = NULL;
 227
 228   if (settings == old_settings)
 229     return;
 230
 231   if (old_settings)
 232   {
 233     g_signal_handler_disconnect (old_settings, priv->settings_connection);
 234     g_object_unref (old_settings);
 235   }
 236
 237   if (settings)
 238   {
 239     priv->settings_connection =
 240       g_signal_connect (settings, "notify",
 241                         G_CALLBACK (gtk_tool_item_group_settings_change_notify),
 242                         group);
 243     priv->settings = g_object_ref (settings);
 244   }
 245   else
 246     priv->settings = NULL;
 247
 248   animation_change_notify (group);
 249 }
 250
 251 static void
 252 gtk_tool_item_group_tool_shell_init (GtkToolShellIface *iface)
 253 {
 254   iface->get_icon_size = gtk_tool_item_group_get_icon_size;
 255   iface->get_orientation = gtk_tool_item_group_get_orientation;
 256   iface->get_style = gtk_tool_item_group_get_style;
 257   iface->get_text_alignment = gtk_tool_item_group_get_text_alignment;
 258   iface->get_text_orientation = gtk_tool_item_group_get_text_orientation;
 259   iface->get_text_size_group = gtk_tool_item_group_get_text_size_group;
 260   iface->get_ellipsize_mode = gtk_tool_item_group_get_ellipsize_mode;
 261 }
 262
 263 static gboolean
 264 gtk_tool_item_group_header_expose_event_cb (GtkWidget      *widget,
 265                                             GdkEventExpose *event,
 266                                             gpointer        data)
 267 {
 268   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (data);
 269   GtkToolItemGroupPrivate* priv = group->priv;
 270   GtkExpanderStyle expander_style;
 271   GtkOrientation orientation;
 272   gint x, y;
 273   GtkTextDirection direction;
 274
 275   orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
 276   expander_style = priv->expander_style;
 277   direction = gtk_widget_get_direction (widget);
 278
 279   if (GTK_ORIENTATION_VERTICAL == orientation)
 280     {
 281       if (GTK_TEXT_DIR_RTL == direction)
 282         x = widget->allocation.x + widget->allocation.width - priv->expander_size / 2;
 283       else
 284         x = widget->allocation.x + priv->expander_size / 2;
 285       y = widget->allocation.y + widget->allocation.height / 2;
 286     }
 287   else
 288     {
 289       x = widget->allocation.x + widget->allocation.width / 2;
 290       y = widget->allocation.y + priv->expander_size / 2;
 291
 292       /* Unfortunatly gtk_paint_expander() doesn't support rotated drawing
 293        * modes. Luckily the following shady arithmetics produce the desired
 294        * result. */
 295       expander_style = GTK_EXPANDER_EXPANDED - expander_style;
 296     }
 297
 298   gtk_paint_expander (widget->style, widget->window,
 299                       priv->header->state,
 300                       &event->area, GTK_WIDGET (group),
 301                       "tool-palette-header", x, y,
 302                       expander_style);
 303
 304   return FALSE;
 305 }
 306
 307 static void
 308 gtk_tool_item_group_header_size_request_cb (GtkWidget      *widget,
 309                                             GtkRequisition *requisition,
 310                                             gpointer        data)
 311 {
 312   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (data);
 313   requisition->height = MAX (requisition->height, group->priv->expander_size);
 314 }
 315
 316 static void
 317 gtk_tool_item_group_header_clicked_cb (GtkButton *button,
 318                                        gpointer   data)
 319 {
 320   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (data);
 321   GtkToolItemGroupPrivate* priv = group->priv;
 322   GtkWidget *parent = gtk_widget_get_parent (data);
 323
 324   if (priv->collapsed ||
 325       !GTK_IS_TOOL_PALETTE (parent) ||
 326       !gtk_tool_palette_get_exclusive (GTK_TOOL_PALETTE (parent), data))
 327     gtk_tool_item_group_set_collapsed (group, !priv->collapsed);
 328 }
 329
 330 static void
 331 gtk_tool_item_group_header_adjust_style (GtkToolItemGroup *group)
 332 {
 333   GtkWidget *alignment = gtk_tool_item_group_get_alignment (group);
 334   GtkWidget *label_widget = gtk_bin_get_child (GTK_BIN (alignment));
 335   GtkWidget *widget = GTK_WIDGET (group);
 336   GtkToolItemGroupPrivate* priv = group->priv;
 337   gint dx = 0, dy = 0;
 338   GtkTextDirection direction = gtk_widget_get_direction (widget);
 339
 340   gtk_widget_style_get (widget,
 341                         "header-spacing", &(priv->header_spacing),
 342                         "expander-size", &(priv->expander_size),
 343                         NULL);
 344
 345   switch (gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group)))
 346     {
 347       case GTK_ORIENTATION_HORIZONTAL:
 348         dy = priv->header_spacing + priv->expander_size;
 349
 350         if (GTK_IS_LABEL (label_widget))
 351           {
 352             gtk_label_set_ellipsize (GTK_LABEL (label_widget), PANGO_ELLIPSIZE_NONE);
 353             if (GTK_TEXT_DIR_RTL == direction)
 354               gtk_label_set_angle (GTK_LABEL (label_widget), -90);
 355             else
 356               gtk_label_set_angle (GTK_LABEL (label_widget), 90);
 357           }
 358        break;
 359
 360       case GTK_ORIENTATION_VERTICAL:
 361         dx = priv->header_spacing + priv->expander_size;
 362
 363         if (GTK_IS_LABEL (label_widget))
 364           {
 365             gtk_label_set_ellipsize (GTK_LABEL (label_widget), priv->ellipsize);
 366             gtk_label_set_angle (GTK_LABEL (label_widget), 0);
 367           }
 368         break;
 369     }
 370
 371   gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), dy, 0, dx, 0);
 372 }
 373
 374 static void
 375 gtk_tool_item_group_init (GtkToolItemGroup *group)
 376 {
 377   GtkWidget *alignment;
 378   GtkToolItemGroupPrivate* priv;
 379
 380   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (group), FALSE);
 381
 382   group->priv = priv = G_TYPE_INSTANCE_GET_PRIVATE (group,
 383                                              GTK_TYPE_TOOL_ITEM_GROUP,
 384                                              GtkToolItemGroupPrivate);
 385
 386   priv->children = NULL;
 387   priv->header_spacing = DEFAULT_HEADER_SPACING;
 388   priv->expander_size = DEFAULT_EXPANDER_SIZE;
 389   priv->expander_style = GTK_EXPANDER_EXPANDED;
 390
 391   priv->label_widget = gtk_label_new (NULL);
 392   gtk_misc_set_alignment (GTK_MISC (priv->label_widget), 0.0, 0.5);
 393   alignment = gtk_alignment_new (0.5, 0.5, 1.0, 1.0);
 394   gtk_container_add (GTK_CONTAINER (alignment), priv->label_widget);
 395   gtk_widget_show_all (alignment);
 396
 397   gtk_widget_push_composite_child ();
 398   priv->header = gtk_button_new ();
 399   gtk_widget_set_composite_name (priv->header, "header");
 400   gtk_widget_pop_composite_child ();
 401
 402   g_object_ref_sink (priv->header);
 403   gtk_button_set_focus_on_click (GTK_BUTTON (priv->header), FALSE);
 404   gtk_container_add (GTK_CONTAINER (priv->header), alignment);
 405   gtk_widget_set_parent (priv->header, GTK_WIDGET (group));
 406
 407   gtk_tool_item_group_header_adjust_style (group);
 408
 409   g_signal_connect_after (alignment, "expose-event",
 410                           G_CALLBACK (gtk_tool_item_group_header_expose_event_cb),
 411                           group);
 412   g_signal_connect_after (alignment, "size-request",
 413                           G_CALLBACK (gtk_tool_item_group_header_size_request_cb),
 414                           group);
 415
 416   g_signal_connect (priv->header, "clicked",
 417                     G_CALLBACK (gtk_tool_item_group_header_clicked_cb),
 418                     group);
 419 }
 420
 421 static void
 422 gtk_tool_item_group_set_property (GObject      *object,
 423                                   guint         prop_id,
 424                                   const GValue *value,
 425                                   GParamSpec   *pspec)
 426 {
 427   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (object);
 428
 429   switch (prop_id)
 430     {
 431       case PROP_LABEL:
 432         gtk_tool_item_group_set_label (group, g_value_get_string (value));
 433         break;
 434
 435       case PROP_LABEL_WIDGET:
 436         gtk_tool_item_group_set_label_widget (group, g_value_get_object (value));
 437         break;
 438
 439       case PROP_COLLAPSED:
 440         gtk_tool_item_group_set_collapsed (group, g_value_get_boolean (value));
 441         break;
 442
 443       case PROP_ELLIPSIZE:
 444         gtk_tool_item_group_set_ellipsize (group, g_value_get_enum (value));
 445         break;
 446
 447       case PROP_RELIEF:
 448         gtk_tool_item_group_set_header_relief (group, g_value_get_enum(value));
 449         break;
 450
 451       default:
 452         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 453         break;
 454     }
 455 }
 456
 457 static void
 458 gtk_tool_item_group_get_property (GObject    *object,
 459                                   guint       prop_id,
 460                                   GValue     *value,
 461                                   GParamSpec *pspec)
 462 {
 463   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (object);
 464
 465   switch (prop_id)
 466     {
 467       case PROP_LABEL:
 468         g_value_set_string (value, gtk_tool_item_group_get_label (group));
 469         break;
 470
 471       case PROP_LABEL_WIDGET:
 472         g_value_set_object (value,
 473                             gtk_tool_item_group_get_label_widget (group));
 474         break;
 475
 476       case PROP_COLLAPSED:
 477         g_value_set_boolean (value, gtk_tool_item_group_get_collapsed (group));
 478         break;
 479
 480       case PROP_ELLIPSIZE:
 481         g_value_set_enum (value, gtk_tool_item_group_get_ellipsize (group));
 482         break;
 483
 484       case PROP_RELIEF:
 485         g_value_set_enum (value, gtk_tool_item_group_get_header_relief (group));
 486         break;
 487
 488       default:
 489         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 490         break;
 491     }
 492 }
 493
 494 static void
 495 gtk_tool_item_group_finalize (GObject *object)
 496 {
 497   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (object);
 498
 499   if (group->priv->children)
 500     {
 501       g_list_free (group->priv->children);
 502       group->priv->children = NULL;
 503     }
 504
 505   G_OBJECT_CLASS (gtk_tool_item_group_parent_class)->finalize (object);
 506 }
 507
 508 static void
 509 gtk_tool_item_group_dispose (GObject *object)
 510 {
 511   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (object);
 512   GtkToolItemGroupPrivate* priv = group->priv;
 513
 514   if (priv->toplevel)
 515     {
 516       /* disconnect focus tracking handler */
 517       g_signal_handler_disconnect (priv->toplevel,
 518                                    priv->focus_set_id);
 519
 520       priv->focus_set_id = 0;
 521       priv->toplevel = NULL;
 522     }
 523
 524   G_OBJECT_CLASS (gtk_tool_item_group_parent_class)->dispose (object);
 525 }
 526
 527 static void
 528 gtk_tool_item_group_get_item_size (GtkToolItemGroup *group,
 529                                    GtkRequisition   *item_size,
 530                                    gboolean          homogeneous_only,
 531                                    gint             *requested_rows)
 532 {
 533   GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (group));
 534
 535   if (GTK_IS_TOOL_PALETTE (parent))
 536     _gtk_tool_palette_get_item_size (GTK_TOOL_PALETTE (parent), item_size, homogeneous_only, requested_rows);
 537   else
 538     _gtk_tool_item_group_item_size_request (group, item_size, homogeneous_only, requested_rows);
 539 }
 540
 541 static void
 542 gtk_tool_item_group_size_request (GtkWidget      *widget,
 543                                   GtkRequisition *requisition)
 544 {
 545   const gint border_width = GTK_CONTAINER (widget)->border_width;
 546   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (widget);
 547   GtkToolItemGroupPrivate* priv = group->priv;
 548   GtkOrientation orientation;
 549   GtkRequisition item_size;
 550   gint requested_rows;
 551
 552   if (priv->children && gtk_tool_item_group_get_label_widget (group))
 553     {
 554       gtk_widget_size_request (priv->header, requisition);
 555       gtk_widget_show (priv->header);
 556     }
 557   else
 558     {
 559       requisition->width = requisition->height = 0;
 560       gtk_widget_hide (priv->header);
 561     }
 562
 563   gtk_tool_item_group_get_item_size (group, &item_size, FALSE, &requested_rows);
 564
 565   orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
 566
 567   if (GTK_ORIENTATION_VERTICAL == orientation)
 568     requisition->width = MAX (requisition->width, item_size.width);
 569   else
 570     requisition->height = MAX (requisition->height, item_size.height * requested_rows);
 571
 572   requisition->width += border_width * 2;
 573   requisition->height += border_width * 2;
 574 }
 575
 576 static gboolean
 577 gtk_tool_item_group_is_item_visible (GtkToolItemGroup      *group,
 578                                      GtkToolItemGroupChild *child)
 579 {
 580   GtkToolbarStyle style;
 581   GtkOrientation orientation;
 582
 583   orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
 584   style = gtk_tool_shell_get_style (GTK_TOOL_SHELL (group));
 585
 586   /* horizontal tool palettes with text style support only homogeneous items */
 587   if (!child->homogeneous &&
 588       GTK_ORIENTATION_HORIZONTAL == orientation &&
 589       GTK_TOOLBAR_TEXT == style)
 590     return FALSE;
 591
 592   return
 593     (gtk_widget_get_visible (GTK_WIDGET (child->item))) &&
 594     (GTK_ORIENTATION_VERTICAL == orientation ?
 595      gtk_tool_item_get_visible_vertical (child->item) :
 596      gtk_tool_item_get_visible_horizontal (child->item));
 597 }
 598
 599 static inline unsigned
 600 udiv (unsigned x,
 601       unsigned y)
 602 {
 603   return (x + y - 1) / y;
 604 }
 605
 606 static void
 607 gtk_tool_item_group_real_size_query (GtkWidget      *widget,
 608                                      GtkAllocation  *allocation,
 609                                      GtkRequisition *inquery)
 610 {
 611   const gint border_width = GTK_CONTAINER (widget)->border_width;
 612   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (widget);
 613   GtkToolItemGroupPrivate* priv = group->priv;
 614
 615   GtkRequisition item_size;
 616   GtkAllocation item_area;
 617
 618   GtkOrientation orientation;
 619   GtkToolbarStyle style;
 620
 621   gint min_rows;
 622
 623   orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
 624   style = gtk_tool_shell_get_style (GTK_TOOL_SHELL (group));
 625
 626   /* figure out the size of homogeneous items */
 627   gtk_tool_item_group_get_item_size (group, &item_size, TRUE, &min_rows);
 628
 629   if (GTK_ORIENTATION_VERTICAL == orientation)
 630     item_size.width = MIN (item_size.width, allocation->width);
 631   else
 632     item_size.height = MIN (item_size.height, allocation->height);
 633
 634   item_area.width = 0;
 635   item_area.height = 0;
 636
 637   /* figure out the required columns (n_columns) and rows (n_rows) to place all items */
 638   if (!priv->collapsed || !priv->animation || priv->animation_timeout)
 639     {
 640       guint n_columns;
 641       gint n_rows;
 642       GList *it;
 643
 644       if (GTK_ORIENTATION_VERTICAL == orientation)
 645         {
 646           gboolean new_row = FALSE;
 647           gint row = -1;
 648           guint col = 0;
 649
 650           item_area.width = allocation->width - 2 * border_width;
 651           n_columns = MAX (item_area.width / item_size.width, 1);
 652
 653           /* calculate required rows for n_columns columns */
 654           for (it = priv->children; it != NULL; it = it->next)
 655             {
 656               GtkToolItemGroupChild *child = it->data;
 657
 658               if (!gtk_tool_item_group_is_item_visible (group, child))
 659                 continue;
 660
 661               if (new_row || child->new_row)
 662                 {
 663                   new_row = FALSE;
 664                   row++;
 665                   col = 0;
 666                 }
 667
 668               if (child->expand)
 669                 new_row = TRUE;
 670
 671               if (child->homogeneous)
 672                 {
 673                   col++;
 674                   if (col >= n_columns)
 675                     new_row = TRUE;
 676                 }
 677               else
 678                 {
 679                   GtkRequisition req = {0, 0};
 680                   guint width;
 681
 682                   gtk_widget_size_request (GTK_WIDGET (child->item), &req);
 683
 684                   width = udiv (req.width, item_size.width);
 685                   col += width;
 686
 687                   if (col > n_columns)
 688                     row++;
 689
 690                   col = width;
 691
 692                   if (col >= n_columns)
 693                     new_row = TRUE;
 694                 }
 695             }
 696           n_rows = row + 2;
 697         }
 698       else
 699         {
 700           guint *row_min_width;
 701           gint row = -1;
 702           gboolean new_row = TRUE;
 703           guint col = 0, min_col, max_col = 0, all_items = 0;
 704           gint i;
 705
 706           item_area.height = allocation->height - 2 * border_width;
 707           n_rows = MAX (item_area.height / item_size.height, min_rows);
 708
 709           row_min_width = g_new0 (guint, n_rows);
 710
 711           /* calculate minimal and maximal required cols and minimal required rows */
 712           for (it = priv->children; it != NULL; it = it->next)
 713             {
 714               GtkToolItemGroupChild *child = it->data;
 715
 716               if (!gtk_tool_item_group_is_item_visible (group, child))
 717                 continue;
 718
 719               if (new_row || child->new_row)
 720                 {
 721                   new_row = FALSE;
 722                   row++;
 723                   col = 0;
 724                   row_min_width[row] = 1;
 725                 }
 726
 727               if (child->expand)
 728                 new_row = TRUE;
 729
 730               if (child->homogeneous)
 731                 {
 732                   col++;
 733                   all_items++;
 734                 }
 735               else
 736                 {
 737                   GtkRequisition req = {0, 0};
 738                   guint width;
 739
 740                   gtk_widget_size_request (GTK_WIDGET (child->item), &req);
 741
 742                   width = udiv (req.width, item_size.width);
 743
 744                   col += width;
 745                   all_items += width;
 746
 747                   row_min_width[row] = MAX (row_min_width[row], width);
 748                 }
 749
 750               max_col = MAX (max_col, col);
 751             }
 752
 753           /* calculate minimal required cols */
 754           min_col = udiv (all_items, n_rows);
 755
 756           for (i = 0; i <= row; i++)
 757             {
 758               min_col = MAX (min_col, row_min_width[i]);
 759             }
 760
 761           /* simple linear search for minimal required columns for the given maximal number of rows (n_rows) */
 762           for (n_columns = min_col; n_columns < max_col; n_columns ++)
 763             {
 764               new_row = TRUE;
 765               row = -1;
 766               /* calculate required rows for n_columns columns */
 767               for (it = priv->children; it != NULL; it = it->next)
 768                 {
 769                   GtkToolItemGroupChild *child = it->data;
 770
 771                   if (!gtk_tool_item_group_is_item_visible (group, child))
 772                     continue;
 773
 774                   if (new_row || child->new_row)
 775                     {
 776                       new_row = FALSE;
 777                       row++;
 778                       col = 0;
 779                     }
 780
 781                   if (child->expand)
 782                     new_row = TRUE;
 783
 784                   if (child->homogeneous)
 785                     {
 786                       col++;
 787                       if (col >= n_columns)
 788                         new_row = TRUE;
 789                     }
 790                   else
 791                     {
 792                       GtkRequisition req = {0, 0};
 793                       guint width;
 794
 795                       gtk_widget_size_request (GTK_WIDGET (child->item), &req);
 796
 797                       width = udiv (req.width, item_size.width);
 798                       col += width;
 799
 800                       if (col > n_columns)
 801                         row++;
 802
 803                       col = width;
 804
 805                       if (col >= n_columns)
 806                         new_row = TRUE;
 807                     }
 808                 }
 809
 810               if (row < n_rows)
 811                 break;
 812             }
 813         }
 814
 815       item_area.width = item_size.width * n_columns;
 816       item_area.height = item_size.height * n_rows;
 817     }
 818
 819   inquery->width = 0;
 820   inquery->height = 0;
 821
 822   /* figure out header widget size */
 823   if (gtk_widget_get_visible (priv->header))
 824     {
 825       GtkRequisition child_requisition;
 826
 827       gtk_widget_size_request (priv->header, &child_requisition);
 828
 829       if (GTK_ORIENTATION_VERTICAL == orientation)
 830         inquery->height += child_requisition.height;
 831       else
 832         inquery->width += child_requisition.width;
 833     }
 834
 835   /* report effective widget size */
 836   inquery->width += item_area.width + 2 * border_width;
 837   inquery->height += item_area.height + 2 * border_width;
 838 }
 839
 840 static void
 841 gtk_tool_item_group_real_size_allocate (GtkWidget     *widget,
 842                                         GtkAllocation *allocation)
 843 {
 844   const gint border_width = GTK_CONTAINER (widget)->border_width;
 845   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (widget);
 846   GtkToolItemGroupPrivate* priv = group->priv;
 847   GtkRequisition child_requisition;
 848   GtkAllocation child_allocation;
 849
 850   GtkRequisition item_size;
 851   GtkAllocation item_area;
 852
 853   GtkOrientation orientation;
 854   GtkToolbarStyle style;
 855
 856   GList *it;
 857
 858   gint n_columns, n_rows = 1;
 859   gint min_rows;
 860
 861   GtkTextDirection direction = gtk_widget_get_direction (widget);
 862
 863   orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
 864   style = gtk_tool_shell_get_style (GTK_TOOL_SHELL (group));
 865
 866   /* chain up */
 867   GTK_WIDGET_CLASS (gtk_tool_item_group_parent_class)->size_allocate (widget, allocation);
 868
 869   child_allocation.x = border_width;
 870   child_allocation.y = border_width;
 871
 872   /* place the header widget */
 873   if (gtk_widget_get_visible (priv->header))
 874     {
 875       gtk_widget_size_request (priv->header, &child_requisition);
 876
 877       if (GTK_ORIENTATION_VERTICAL == orientation)
 878         {
 879           child_allocation.width = allocation->width;
 880           child_allocation.height = child_requisition.height;
 881         }
 882       else
 883         {
 884           child_allocation.width = child_requisition.width;
 885           child_allocation.height = allocation->height;
 886
 887           if (GTK_TEXT_DIR_RTL == direction)
 888             child_allocation.x = allocation->width - border_width - child_allocation.width;
 889         }
 890
 891       gtk_widget_size_allocate (priv->header, &child_allocation);
 892
 893       if (GTK_ORIENTATION_VERTICAL == orientation)
 894         child_allocation.y += child_allocation.height;
 895       else if (GTK_TEXT_DIR_RTL != direction)
 896         child_allocation.x += child_allocation.width;
 897       else
 898         child_allocation.x = border_width;
 899     }
 900   else
 901     child_requisition.width = child_requisition.height = 0;
 902
 903   /* figure out the size of homogeneous items */
 904   gtk_tool_item_group_get_item_size (group, &item_size, TRUE, &min_rows);
 905
 906   /* figure out the available columns and size of item_area */
 907   if (GTK_ORIENTATION_VERTICAL == orientation)
 908     {
 909       item_size.width = MIN (item_size.width, allocation->width);
 910
 911       item_area.width = allocation->width - 2 * border_width;
 912       item_area.height = allocation->height - 2 * border_width - child_requisition.height;
 913
 914       n_columns = MAX (item_area.width / item_size.width, 1);
 915
 916       item_size.width = item_area.width / n_columns;
 917     }
 918   else
 919     {
 920       item_size.height = MIN (item_size.height, allocation->height);
 921
 922       item_area.width = allocation->width - 2 * border_width - child_requisition.width;
 923       item_area.height = allocation->height - 2 * border_width;
 924
 925       n_columns = MAX (item_area.width / item_size.width, 1);
 926       n_rows = MAX (item_area.height / item_size.height, min_rows);
 927
 928       item_size.height = item_area.height / n_rows;
 929     }
 930
 931   item_area.x = child_allocation.x;
 932   item_area.y = child_allocation.y;
 933
 934   /* when expanded or in transition, place the tool items in a grid like layout */
 935   if (!priv->collapsed || !priv->animation || priv->animation_timeout)
 936     {
 937       gint col = 0, row = 0;
 938
 939       for (it = priv->children; it != NULL; it = it->next)
 940         {
 941           GtkToolItemGroupChild *child = it->data;
 942           gint col_child;
 943
 944           if (!gtk_tool_item_group_is_item_visible (group, child))
 945             {
 946               gtk_widget_set_child_visible (GTK_WIDGET (child->item), FALSE);
 947
 948               continue;
 949             }
 950
 951           /* for non homogeneous widgets request the required size */
 952           child_requisition.width = 0;
 953
 954           if (!child->homogeneous)
 955             {
 956               gtk_widget_size_request (GTK_WIDGET (child->item), &child_requisition);
 957               child_requisition.width = MIN (child_requisition.width, item_area.width);
 958             }
 959
 960           /* select next row if at end of row */
 961           if (col > 0 && (child->new_row || (col * item_size.width) + MAX (child_requisition.width, item_size.width) > item_area.width))
 962             {
 963               row++;
 964               col = 0;
 965               child_allocation.y += child_allocation.height;
 966             }
 967
 968           col_child = col;
 969
 970           /* calculate the position and size of the item */
 971           if (!child->homogeneous)
 972             {
 973               gint col_width;
 974               gint width;
 975
 976               if (!child->expand)
 977                 col_width = udiv (child_requisition.width, item_size.width);
 978               else
 979                 col_width = n_columns - col;
 980
 981               width = col_width * item_size.width;
 982
 983               if (GTK_TEXT_DIR_RTL == direction)
 984                 col_child = (n_columns - col - col_width);
 985
 986               if (child->fill)
 987                 {
 988                   child_allocation.x = item_area.x + col_child * item_size.width;
 989                   child_allocation.width = width;
 990                 }
 991               else
 992                 {
 993                   child_allocation.x =
 994                     (item_area.x + col_child * item_size.width +
 995                     (width - child_requisition.width) / 2);
 996                   child_allocation.width = child_requisition.width;
 997                 }
 998
 999               col += col_width;
1000             }
1001           else
1002             {
1003               if (GTK_TEXT_DIR_RTL == direction)
1004                 col_child = (n_columns - col - 1);
1005
1006               child_allocation.x = item_area.x + col_child * item_size.width;
1007               child_allocation.width = item_size.width;
1008
1009               col++;
1010             }
1011
1012           child_allocation.height = item_size.height;
1013
1014           gtk_widget_size_allocate (GTK_WIDGET (child->item), &child_allocation);
1015           gtk_widget_set_child_visible (GTK_WIDGET (child->item), TRUE);
1016         }
1017
1018       child_allocation.y += item_size.height;
1019     }
1020
1021   /* or just hide all items, when collapsed */
1022
1023   else
1024     {
1025       for (it = priv->children; it != NULL; it = it->next)
1026         {
1027           GtkToolItemGroupChild *child = it->data;
1028
1029           gtk_widget_set_child_visible (GTK_WIDGET (child->item), FALSE);
1030         }
1031     }
1032 }
1033
1034 static void
1035 gtk_tool_item_group_size_allocate (GtkWidget     *widget,
1036                                    GtkAllocation *allocation)
1037 {
1038   gtk_tool_item_group_real_size_allocate (widget, allocation);
1039
1040   if (gtk_widget_get_mapped (widget))
1041     gdk_window_invalidate_rect (widget->window, NULL, FALSE);
1042 }
1043
1044 static void
1045 gtk_tool_item_group_set_focus_cb (GtkWidget *window,
1046                                   GtkWidget *widget,
1047                                   gpointer   user_data)
1048 {
1049   GtkAdjustment *adjustment;
1050   GtkWidget *p;
1051
1052   /* Find this group's parent widget in the focused widget's anchestry. */
1053   for (p = widget; p; p = gtk_widget_get_parent (p))
1054     if (p == user_data)
1055       {
1056         p = gtk_widget_get_parent (p);
1057         break;
1058       }
1059
1060   if (GTK_IS_TOOL_PALETTE (p))
1061     {
1062       /* Check that the focused widgets is fully visible within
1063        * the group's parent widget and make it visible otherwise. */
1064
1065       adjustment = gtk_tool_palette_get_hadjustment (GTK_TOOL_PALETTE (p));
1066       adjustment = gtk_tool_palette_get_vadjustment (GTK_TOOL_PALETTE (p));
1067
1068       if (adjustment)
1069         {
1070           int y;
1071
1072           /* Handle vertical adjustment. */
1073           if (gtk_widget_translate_coordinates
1074                 (widget, p, 0, 0, NULL, &y) && y < 0)
1075             {
1076               y += adjustment->value;
1077               gtk_adjustment_clamp_page (adjustment, y, y + widget->allocation.height);
1078             }
1079           else if (gtk_widget_translate_coordinates
1080                       (widget, p, 0, widget->allocation.height, NULL, &y) &&
1081                    y > p->allocation.height)
1082             {
1083               y += adjustment->value;
1084               gtk_adjustment_clamp_page (adjustment, y - widget->allocation.height, y);
1085             }
1086         }
1087
1088       adjustment = gtk_tool_palette_get_hadjustment (GTK_TOOL_PALETTE (p));
1089
1090       if (adjustment)
1091         {
1092           int x;
1093
1094           /* Handle horizontal adjustment. */
1095           if (gtk_widget_translate_coordinates
1096                 (widget, p, 0, 0, &x, NULL) && x < 0)
1097             {
1098               x += adjustment->value;
1099               gtk_adjustment_clamp_page (adjustment, x, x + widget->allocation.width);
1100             }
1101           else if (gtk_widget_translate_coordinates
1102                       (widget, p, widget->allocation.width, 0, &x, NULL) &&
1103                    x > p->allocation.width)
1104             {
1105               x += adjustment->value;
1106               gtk_adjustment_clamp_page (adjustment, x - widget->allocation.width, x);
1107             }
1108
1109           return;
1110         }
1111     }
1112 }
1113
1114 static void
1115 gtk_tool_item_group_set_toplevel_window (GtkToolItemGroup *group,
1116                                          GtkWidget        *toplevel)
1117 {
1118   GtkToolItemGroupPrivate* priv = group->priv;
1119
1120   if (toplevel != priv->toplevel)
1121     {
1122       if (priv->toplevel)
1123         {
1124           /* Disconnect focus tracking handler. */
1125           g_signal_handler_disconnect (priv->toplevel,
1126                                        priv->focus_set_id);
1127
1128           priv->focus_set_id = 0;
1129           priv->toplevel = NULL;
1130         }
1131
1132       if (toplevel)
1133         {
1134           /* Install focus tracking handler. We connect to the window's
1135            * set-focus signal instead of connecting to the focus signal of
1136            * each child to:
1137            *
1138            * 1) Reduce the number of signal handlers used.
1139            * 2) Avoid special handling for group headers.
1140            * 3) Catch focus grabs not only for direct children,
1141            *    but also for nested widgets.
1142            */
1143           priv->focus_set_id =
1144             g_signal_connect (toplevel, "set-focus",
1145                               G_CALLBACK (gtk_tool_item_group_set_focus_cb),
1146                               group);
1147
1148           priv->toplevel = toplevel;
1149         }
1150     }
1151 }
1152
1153 static void
1154 gtk_tool_item_group_realize (GtkWidget *widget)
1155 {
1156   GtkWidget *toplevel_window;
1157   const gint border_width = GTK_CONTAINER (widget)->border_width;
1158   gint attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1159   GdkWindowAttr attributes;
1160   GdkDisplay *display;
1161
1162   attributes.window_type = GDK_WINDOW_CHILD;
1163   attributes.x = widget->allocation.x + border_width;
1164   attributes.y = widget->allocation.y + border_width;
1165   attributes.width = widget->allocation.width - border_width * 2;
1166   attributes.height = widget->allocation.height - border_width * 2;
1167   attributes.wclass = GDK_INPUT_OUTPUT;
1168   attributes.visual = gtk_widget_get_visual (widget);
1169   attributes.colormap = gtk_widget_get_colormap (widget);
1170   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK
1171                         | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
1172                         | GDK_BUTTON_MOTION_MASK;
1173
1174   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1175                                    &attributes, attributes_mask);
1176
1177   display = gdk_drawable_get_display (widget->window);
1178
1179   if (gdk_display_supports_composite (display))
1180     gdk_window_set_composited (widget->window, TRUE);
1181
1182   gdk_window_set_user_data (widget->window, widget);
1183   widget->style = gtk_style_attach (widget->style, widget->window);
1184   gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
1185   gtk_widget_set_realized (widget, TRUE);
1186
1187   gtk_container_forall (GTK_CONTAINER (widget),
1188                         (GtkCallback) gtk_widget_set_parent_window,
1189                         widget->window);
1190
1191   gtk_widget_queue_resize_no_redraw (widget);
1192
1193   toplevel_window = gtk_widget_get_ancestor (widget, GTK_TYPE_WINDOW);
1194   gtk_tool_item_group_set_toplevel_window (GTK_TOOL_ITEM_GROUP (widget),
1195                                            toplevel_window);
1196 }
1197
1198 static void
1199 gtk_tool_item_group_unrealize (GtkWidget *widget)
1200 {
1201   gtk_tool_item_group_set_toplevel_window (GTK_TOOL_ITEM_GROUP (widget), NULL);
1202   GTK_WIDGET_CLASS (gtk_tool_item_group_parent_class)->unrealize (widget);
1203 }
1204
1205 static void
1206 gtk_tool_item_group_style_set (GtkWidget *widget,
1207                                GtkStyle  *previous_style)
1208 {
1209   gtk_tool_item_group_header_adjust_style (GTK_TOOL_ITEM_GROUP (widget));
1210   GTK_WIDGET_CLASS (gtk_tool_item_group_parent_class)->style_set (widget, previous_style);
1211 }
1212
1213 static void
1214 gtk_tool_item_group_add (GtkContainer *container,
1215                          GtkWidget    *widget)
1216 {
1217   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (container));
1218   g_return_if_fail (GTK_IS_TOOL_ITEM (widget));
1219
1220   gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (container),
1221                               GTK_TOOL_ITEM (widget), -1);
1222 }
1223
1224 static void
1225 gtk_tool_item_group_remove (GtkContainer *container,
1226                             GtkWidget    *child)
1227 {
1228   GtkToolItemGroup *group;
1229   GtkToolItemGroupPrivate* priv;
1230   GList *it;
1231
1232   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (container));
1233   group = GTK_TOOL_ITEM_GROUP (container);
1234   priv = group->priv;
1235
1236   for (it = priv->children; it != NULL; it = it->next)
1237     {
1238       GtkToolItemGroupChild *child_info = it->data;
1239
1240       if ((GtkWidget *)child_info->item == child)
1241         {
1242           g_object_unref (child);
1243           gtk_widget_unparent (child);
1244
1245           g_free (child_info);
1246           priv->children = g_list_delete_link (priv->children, it);
1247
1248           gtk_widget_queue_resize (GTK_WIDGET (container));
1249           break;
1250         }
1251     }
1252 }
1253
1254 static void
1255 gtk_tool_item_group_forall (GtkContainer *container,
1256                             gboolean      internals,
1257                             GtkCallback   callback,
1258                             gpointer      callback_data)
1259 {
1260   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (container);
1261   GtkToolItemGroupPrivate* priv = group->priv;
1262   GList *children;
1263
1264   if (internals && priv->header)
1265     callback (priv->header, callback_data);
1266
1267   children = priv->children;
1268   while (children)
1269     {
1270       GtkToolItemGroupChild *child = children->data;
1271       children = children->next; /* store pointer before call to callback
1272                                     because the child pointer is invalid if the
1273                                     child->item is removed from the item group
1274                                     in callback */
1275
1276       callback (GTK_WIDGET (child->item), callback_data);
1277     }
1278 }
1279
1280 static GType
1281 gtk_tool_item_group_child_type (GtkContainer *container)
1282 {
1283   return GTK_TYPE_TOOL_ITEM;
1284 }
1285
1286 static GtkToolItemGroupChild *
1287 gtk_tool_item_group_get_child (GtkToolItemGroup  *group,
1288                                GtkToolItem       *item,
1289                                gint              *position,
1290                                GList            **link)
1291 {
1292   guint i;
1293   GList *it;
1294
1295   g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), NULL);
1296   g_return_val_if_fail (GTK_IS_TOOL_ITEM (item), NULL);
1297
1298   for (it = group->priv->children, i = 0; it != NULL; it = it->next, ++i)
1299     {
1300       GtkToolItemGroupChild *child = it->data;
1301
1302       if (child->item == item)
1303         {
1304           if (position)
1305             *position = i;
1306
1307           if (link)
1308             *link = it;
1309
1310           return child;
1311         }
1312     }
1313
1314   return NULL;
1315 }
1316
1317 static void
1318 gtk_tool_item_group_get_item_packing (GtkToolItemGroup *group,
1319                                       GtkToolItem      *item,
1320                                       gboolean         *homogeneous,
1321                                       gboolean         *expand,
1322                                       gboolean         *fill,
1323                                       gboolean         *new_row)
1324 {
1325   GtkToolItemGroupChild *child;
1326
1327   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
1328   g_return_if_fail (GTK_IS_TOOL_ITEM (item));
1329
1330   child = gtk_tool_item_group_get_child (group, item, NULL, NULL);
1331   if (!child)
1332     return;
1333
1334   if (expand)
1335     *expand = child->expand;
1336
1337   if (homogeneous)
1338     *homogeneous = child->homogeneous;
1339
1340   if (fill)
1341     *fill = child->fill;
1342
1343   if (new_row)
1344     *new_row = child->new_row;
1345 }
1346
1347 static void
1348 gtk_tool_item_group_set_item_packing (GtkToolItemGroup *group,
1349                                       GtkToolItem      *item,
1350                                       gboolean          homogeneous,
1351                                       gboolean          expand,
1352                                       gboolean          fill,
1353                                       gboolean          new_row)
1354 {
1355   GtkToolItemGroupChild *child;
1356   gboolean changed = FALSE;
1357
1358   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
1359   g_return_if_fail (GTK_IS_TOOL_ITEM (item));
1360
1361   child = gtk_tool_item_group_get_child (group, item, NULL, NULL);
1362   if (!child)
1363     return;
1364
1365   gtk_widget_freeze_child_notify (GTK_WIDGET (item));
1366
1367   if (child->homogeneous != homogeneous)
1368     {
1369       child->homogeneous = homogeneous;
1370       changed = TRUE;
1371       gtk_widget_child_notify (GTK_WIDGET (item), "homogeneous");
1372     }
1373   if (child->expand != expand)
1374     {
1375       child->expand = expand;
1376       changed = TRUE;
1377       gtk_widget_child_notify (GTK_WIDGET (item), "expand");
1378     }
1379   if (child->fill != fill)
1380     {
1381       child->fill = fill;
1382       changed = TRUE;
1383       gtk_widget_child_notify (GTK_WIDGET (item), "fill");
1384     }
1385   if (child->new_row != new_row)
1386     {
1387       child->new_row = new_row;
1388       changed = TRUE;
1389       gtk_widget_child_notify (GTK_WIDGET (item), "new-row");
1390     }
1391
1392   gtk_widget_thaw_child_notify (GTK_WIDGET (item));
1393
1394   if (changed
1395       && gtk_widget_get_visible (GTK_WIDGET (group))
1396       && gtk_widget_get_visible (GTK_WIDGET (item)))
1397     gtk_widget_queue_resize (GTK_WIDGET (group));
1398 }
1399
1400 static void
1401 gtk_tool_item_group_set_child_property (GtkContainer *container,
1402                                         GtkWidget    *child,
1403                                         guint         prop_id,
1404                                         const GValue *value,
1405                                         GParamSpec   *pspec)
1406 {
1407   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (container);
1408   GtkToolItem *item = GTK_TOOL_ITEM (child);
1409   gboolean homogeneous, expand, fill, new_row;
1410
1411   if (prop_id != CHILD_PROP_POSITION)
1412     gtk_tool_item_group_get_item_packing (group, item,
1413                                           &homogeneous,
1414                                           &expand,
1415                                           &fill,
1416                                           &new_row);
1417
1418   switch (prop_id)
1419     {
1420       case CHILD_PROP_HOMOGENEOUS:
1421         gtk_tool_item_group_set_item_packing (group, item,
1422                                               g_value_get_boolean (value),
1423                                               expand,
1424                                               fill,
1425                                               new_row);
1426         break;
1427
1428       case CHILD_PROP_EXPAND:
1429         gtk_tool_item_group_set_item_packing (group, item,
1430                                               homogeneous,
1431                                               g_value_get_boolean (value),
1432                                               fill,
1433                                               new_row);
1434         break;
1435
1436       case CHILD_PROP_FILL:
1437         gtk_tool_item_group_set_item_packing (group, item,
1438                                               homogeneous,
1439                                               expand,
1440                                               g_value_get_boolean (value),
1441                                               new_row);
1442         break;
1443
1444       case CHILD_PROP_NEW_ROW:
1445         gtk_tool_item_group_set_item_packing (group, item,
1446                                               homogeneous,
1447                                               expand,
1448                                               fill,
1449                                               g_value_get_boolean (value));
1450         break;
1451
1452       case CHILD_PROP_POSITION:
1453         gtk_tool_item_group_set_item_position (group, item, g_value_get_int (value));
1454         break;
1455
1456       default:
1457         GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, prop_id, pspec);
1458         break;
1459     }
1460 }
1461
1462 static void
1463 gtk_tool_item_group_get_child_property (GtkContainer *container,
1464                                         GtkWidget    *child,
1465                                         guint         prop_id,
1466                                         GValue       *value,
1467                                         GParamSpec   *pspec)
1468 {
1469   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (container);
1470   GtkToolItem *item = GTK_TOOL_ITEM (child);
1471   gboolean homogeneous, expand, fill, new_row;
1472
1473   if (prop_id != CHILD_PROP_POSITION)
1474     gtk_tool_item_group_get_item_packing (group, item,
1475                                           &homogeneous,
1476                                           &expand,
1477                                           &fill,
1478                                           &new_row);
1479
1480   switch (prop_id)
1481     {
1482       case CHILD_PROP_HOMOGENEOUS:
1483         g_value_set_boolean (value, homogeneous);
1484         break;
1485
1486        case CHILD_PROP_EXPAND:
1487         g_value_set_boolean (value, expand);
1488         break;
1489
1490        case CHILD_PROP_FILL:
1491         g_value_set_boolean (value, fill);
1492         break;
1493
1494        case CHILD_PROP_NEW_ROW:
1495         g_value_set_boolean (value, new_row);
1496         break;
1497
1498      case CHILD_PROP_POSITION:
1499         g_value_set_int (value, gtk_tool_item_group_get_item_position (group, item));
1500         break;
1501
1502       default:
1503         GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, prop_id, pspec);
1504         break;
1505     }
1506 }
1507
1508 static void
1509 gtk_tool_item_group_class_init (GtkToolItemGroupClass *cls)
1510 {
1511   GObjectClass       *oclass = G_OBJECT_CLASS (cls);
1512   GtkWidgetClass     *wclass = GTK_WIDGET_CLASS (cls);
1513   GtkContainerClass  *cclass = GTK_CONTAINER_CLASS (cls);
1514
1515   oclass->set_property       = gtk_tool_item_group_set_property;
1516   oclass->get_property       = gtk_tool_item_group_get_property;
1517   oclass->finalize           = gtk_tool_item_group_finalize;
1518   oclass->dispose            = gtk_tool_item_group_dispose;
1519
1520   wclass->size_request       = gtk_tool_item_group_size_request;
1521   wclass->size_allocate      = gtk_tool_item_group_size_allocate;
1522   wclass->realize            = gtk_tool_item_group_realize;
1523   wclass->unrealize          = gtk_tool_item_group_unrealize;
1524   wclass->style_set          = gtk_tool_item_group_style_set;
1525   wclass->screen_changed     = gtk_tool_item_group_screen_changed;
1526
1527   cclass->add                = gtk_tool_item_group_add;
1528   cclass->remove             = gtk_tool_item_group_remove;
1529   cclass->forall             = gtk_tool_item_group_forall;
1530   cclass->child_type         = gtk_tool_item_group_child_type;
1531   cclass->set_child_property = gtk_tool_item_group_set_child_property;
1532   cclass->get_child_property = gtk_tool_item_group_get_child_property;
1533
1534   g_object_class_install_property (oclass, PROP_LABEL,
1535                                    g_param_spec_string ("label",
1536                                                         P_("Label"),
1537                                                         P_("The human-readable title of this item group"),
1538                                                         DEFAULT_LABEL,
1539                                                         GTK_PARAM_READWRITE));
1540
1541   g_object_class_install_property (oclass, PROP_LABEL_WIDGET,
1542                                    g_param_spec_object  ("label-widget",
1543                                                         P_("Label widget"),
1544                                                         P_("A widget to display in place of the usual label"),
1545                                                         GTK_TYPE_WIDGET,
1546                                                         GTK_PARAM_READWRITE));
1547
1548   g_object_class_install_property (oclass, PROP_COLLAPSED,
1549                                    g_param_spec_boolean ("collapsed",
1550                                                          P_("Collapsed"),
1551                                                          P_("Wether the group has been collapsed and items are hidden"),
1552                                                          DEFAULT_COLLAPSED,
1553                                                          GTK_PARAM_READWRITE));
1554
1555   g_object_class_install_property (oclass, PROP_ELLIPSIZE,
1556                                    g_param_spec_enum ("ellipsize",
1557                                                       P_("ellipsize"),
1558                                                       P_("Ellipsize for item group headers"),
1559                                                       PANGO_TYPE_ELLIPSIZE_MODE, DEFAULT_ELLIPSIZE,
1560                                                       GTK_PARAM_READWRITE));
1561
1562   g_object_class_install_property (oclass, PROP_RELIEF,
1563                                    g_param_spec_enum ("header-relief",
1564                                                       P_("Header Relief"),
1565                                                       P_("Relief of the group header button"),
1566                                                       GTK_TYPE_RELIEF_STYLE, GTK_RELIEF_NORMAL,
1567                                                       GTK_PARAM_READWRITE));
1568
1569   gtk_widget_class_install_style_property (wclass,
1570                                            g_param_spec_int ("expander-size",
1571                                                              P_("Expander Size"),
1572                                                              P_("Size of the expander arrow"),
1573                                                              0,
1574                                                              G_MAXINT,
1575                                                              DEFAULT_EXPANDER_SIZE,
1576                                                              GTK_PARAM_READABLE));
1577
1578   gtk_widget_class_install_style_property (wclass,
1579                                            g_param_spec_int ("header-spacing",
1580                                                              P_("Header Spacing"),
1581                                                              P_("Spacing between expander arrow and caption"),
1582                                                              0,
1583                                                              G_MAXINT,
1584                                                              DEFAULT_HEADER_SPACING,
1585                                                              GTK_PARAM_READABLE));
1586
1587   gtk_container_class_install_child_property (cclass, CHILD_PROP_HOMOGENEOUS,
1588                                               g_param_spec_boolean ("homogeneous",
1589                                                                     P_("Homogeneous"),
1590                                                                     P_("Whether the item should be the same size as other homogeneous items"),
1591                                                                     TRUE,
1592                                                                     GTK_PARAM_READWRITE));
1593
1594   gtk_container_class_install_child_property (cclass, CHILD_PROP_EXPAND,
1595                                               g_param_spec_boolean ("expand",
1596                                                                     P_("Expand"),
1597                                                                     P_("Whether the item should receive extra space when the group grows"),
1598                                                                     FALSE,
1599                                                                     GTK_PARAM_READWRITE));
1600
1601   gtk_container_class_install_child_property (cclass, CHILD_PROP_FILL,
1602                                               g_param_spec_boolean ("fill",
1603                                                                     P_("Fill"),
1604                                                                     P_("Whether the item should fill the available space"),
1605                                                                     TRUE,
1606                                                                     GTK_PARAM_READWRITE));
1607
1608   gtk_container_class_install_child_property (cclass, CHILD_PROP_NEW_ROW,
1609                                               g_param_spec_boolean ("new-row",
1610                                                                     P_("New Row"),
1611                                                                     P_("Whether the item should start a new row"),
1612                                                                     FALSE,
1613                                                                     GTK_PARAM_READWRITE));
1614
1615   gtk_container_class_install_child_property (cclass, CHILD_PROP_POSITION,
1616                                               g_param_spec_int ("position",
1617                                                                 P_("Position"),
1618                                                                 P_("Position of the item within this group"),
1619                                                                 0,
1620                                                                 G_MAXINT,
1621                                                                 0,
1622                                                                 GTK_PARAM_READWRITE));
1623
1624   g_type_class_add_private (cls, sizeof (GtkToolItemGroupPrivate));
1625 }
1626
1627 /**
1628  * gtk_tool_item_group_new:
1629  * @label: the label of the new group
1630  *
1631  * Creates a new tool item group with label @label.
1632  *
1633  * Returns: a new #GtkToolItemGroup.
1634  *
1635  * Since: 2.20
1636  */
1637 GtkWidget*
1638 gtk_tool_item_group_new (const gchar *label)
1639 {
1640   return g_object_new (GTK_TYPE_TOOL_ITEM_GROUP, "label", label, NULL);
1641 }
1642
1643 /**
1644  * gtk_tool_item_group_set_label:
1645  * @group: a #GtkToolItemGroup
1646  * @label: the new human-readable label of of the group
1647  *
1648  * Sets the label of the tool item group. The label is displayed in the header
1649  * of the group.
1650  *
1651  * Since: 2.20
1652  */
1653 void
1654 gtk_tool_item_group_set_label (GtkToolItemGroup *group,
1655                                const gchar      *label)
1656 {
1657   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
1658
1659   if (!label)
1660     gtk_tool_item_group_set_label_widget (group, NULL);
1661   else
1662     {
1663       GtkWidget *child = gtk_label_new (label);
1664       gtk_widget_show (child);
1665
1666       gtk_tool_item_group_set_label_widget (group, child);
1667     }
1668
1669   g_object_notify (G_OBJECT (group), "label");
1670 }
1671
1672 /**
1673  * gtk_tool_item_group_set_label_widget:
1674  * @group: a #GtkToolItemGroup
1675  * @label_widget: the widget to be displayed in place of the usual label
1676  *
1677  * Sets the label of the tool item group.
1678  * The label widget is displayed in the header of the group, in place
1679  * of the usual label.
1680  *
1681  * Since: 2.20
1682  */
1683 void
1684 gtk_tool_item_group_set_label_widget (GtkToolItemGroup *group,
1685                                       GtkWidget        *label_widget)
1686 {
1687   GtkToolItemGroupPrivate* priv;
1688   GtkWidget *alignment;
1689
1690   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
1691   g_return_if_fail (label_widget == NULL || GTK_IS_WIDGET (label_widget));
1692   g_return_if_fail (label_widget == NULL || label_widget->parent == NULL);
1693
1694   priv = group->priv;
1695
1696   if (priv->label_widget == label_widget)
1697     return;
1698
1699   alignment = gtk_tool_item_group_get_alignment (group);
1700
1701   if (priv->label_widget)
1702     {
1703       gtk_widget_set_state (priv->label_widget, GTK_STATE_NORMAL);
1704       gtk_container_remove (GTK_CONTAINER (alignment), priv->label_widget);
1705     }
1706
1707
1708   if (label_widget)
1709       gtk_container_add (GTK_CONTAINER (alignment), label_widget);
1710
1711   priv->label_widget = label_widget;
1712
1713   if (gtk_widget_get_visible (GTK_WIDGET (group)))
1714     gtk_widget_queue_resize (GTK_WIDGET (group));
1715
1716   /* Only show the header widget if the group has children: */
1717   if (label_widget && priv->children)
1718     gtk_widget_show (priv->header);
1719   else
1720     gtk_widget_hide (priv->header);
1721
1722   g_object_freeze_notify (G_OBJECT (group));
1723   g_object_notify (G_OBJECT (group), "label-widget");
1724   g_object_notify (G_OBJECT (group), "label");
1725   g_object_thaw_notify (G_OBJECT (group));
1726 }
1727
1728 /**
1729  * gtk_tool_item_group_set_header_relief:
1730  * @group: a #GtkToolItemGroup
1731  * @style: the #GtkReliefStyle
1732  *
1733  * Set the button relief of the group header.
1734  * See gtk_button_set_relief() for details.
1735  *
1736  * Since: 2.20
1737  */
1738 void
1739 gtk_tool_item_group_set_header_relief (GtkToolItemGroup *group,
1740                                        GtkReliefStyle    style)
1741 {
1742   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
1743
1744   gtk_button_set_relief (GTK_BUTTON (group->priv->header), style);
1745 }
1746
1747 static gint64
1748 gtk_tool_item_group_get_animation_timestamp (GtkToolItemGroup *group)
1749 {
1750   GTimeVal now;
1751
1752   g_source_get_current_time (group->priv->animation_timeout, &now);
1753   return (now.tv_sec * G_USEC_PER_SEC + now.tv_usec - group->priv->animation_start) / 1000;
1754 }
1755
1756 static void
1757 gtk_tool_item_group_force_expose (GtkToolItemGroup *group)
1758 {
1759   GtkToolItemGroupPrivate* priv = group->priv;
1760   GtkWidget *widget = GTK_WIDGET (group);
1761
1762   if (gtk_widget_get_realized (priv->header))
1763     {
1764       GtkWidget *alignment = gtk_tool_item_group_get_alignment (group);
1765       GdkRectangle area;
1766
1767       /* Find the header button's arrow area... */
1768       area.x = alignment->allocation.x;
1769       area.y = alignment->allocation.y + (alignment->allocation.height - priv->expander_size) / 2;
1770       area.height = priv->expander_size;
1771       area.width = priv->expander_size;
1772
1773       /* ... and invalidated it to get it animated. */
1774       gdk_window_invalidate_rect (priv->header->window, &area, TRUE);
1775     }
1776
1777   if (gtk_widget_get_realized (widget))
1778     {
1779       GtkWidget *parent = gtk_widget_get_parent (widget);
1780       int x, y, width, height;
1781
1782       /* Find the tool item area button's arrow area... */
1783       width = widget->allocation.width;
1784       height = widget->allocation.height;
1785
1786       gtk_widget_translate_coordinates (widget, parent, 0, 0, &x, &y);
1787
1788       if (gtk_widget_get_visible (priv->header))
1789         {
1790           height -= priv->header->allocation.height;
1791           y += priv->header->allocation.height;
1792         }
1793
1794       /* ... and invalidated it to get it animated. */
1795       gtk_widget_queue_draw_area (parent, x, y, width, height);
1796     }
1797 }
1798
1799 static gboolean
1800 gtk_tool_item_group_animation_cb (gpointer data)
1801 {
1802   GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (data);
1803   GtkToolItemGroupPrivate* priv = group->priv;
1804   gint64 timestamp = gtk_tool_item_group_get_animation_timestamp (group);
1805   gboolean retval;
1806
1807   GDK_THREADS_ENTER ();
1808
1809   /* Enque this early to reduce number of expose events. */
1810   gtk_widget_queue_resize_no_redraw (GTK_WIDGET (group));
1811
1812   /* Figure out current style of the expander arrow. */
1813   if (priv->collapsed)
1814     {
1815       if (priv->expander_style == GTK_EXPANDER_EXPANDED)
1816         priv->expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
1817       else
1818         priv->expander_style = GTK_EXPANDER_COLLAPSED;
1819     }
1820   else
1821     {
1822       if (priv->expander_style == GTK_EXPANDER_COLLAPSED)
1823         priv->expander_style = GTK_EXPANDER_SEMI_EXPANDED;
1824       else
1825         priv->expander_style = GTK_EXPANDER_EXPANDED;
1826     }
1827
1828   gtk_tool_item_group_force_expose (group);
1829
1830   /* Finish animation when done. */
1831   if (timestamp >= ANIMATION_DURATION)
1832     priv->animation_timeout = NULL;
1833
1834   retval = (priv->animation_timeout != NULL);
1835
1836   GDK_THREADS_LEAVE ();
1837
1838   return retval;
1839 }
1840
1841 /**
1842  * gtk_tool_item_group_set_collapsed:
1843  * @group: a #GtkToolItemGroup
1844  * @collapsed: whether the @group should be collapsed or expanded
1845  *
1846  * Sets whether the @group should be collapsed or expanded.
1847  *
1848  * Since: 2.20
1849  */
1850 void
1851 gtk_tool_item_group_set_collapsed (GtkToolItemGroup *group,
1852                                    gboolean          collapsed)
1853 {
1854   GtkWidget *parent;
1855   GtkToolItemGroupPrivate* priv;
1856
1857   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
1858
1859   priv = group->priv;
1860
1861   parent = gtk_widget_get_parent (GTK_WIDGET (group));
1862   if (GTK_IS_TOOL_PALETTE (parent) && !collapsed)
1863     _gtk_tool_palette_set_expanding_child (GTK_TOOL_PALETTE (parent),
1864                                            GTK_WIDGET (group));
1865   if (collapsed != priv->collapsed)
1866     {
1867       if (priv->animation)
1868         {
1869           GTimeVal now;
1870
1871           g_get_current_time (&now);
1872
1873           if (priv->animation_timeout)
1874             g_source_destroy (priv->animation_timeout);
1875
1876           priv->animation_start = (now.tv_sec * G_USEC_PER_SEC + now.tv_usec);
1877           priv->animation_timeout = g_timeout_source_new (ANIMATION_TIMEOUT);
1878
1879           g_source_set_callback (priv->animation_timeout,
1880                                  gtk_tool_item_group_animation_cb,
1881                                  group, NULL);
1882
1883           g_source_attach (priv->animation_timeout, NULL);
1884         }
1885         else
1886         {
1887           priv->expander_style = GTK_EXPANDER_COLLAPSED;
1888           gtk_tool_item_group_force_expose (group);
1889         }
1890
1891       priv->collapsed = collapsed;
1892       g_object_notify (G_OBJECT (group), "collapsed");
1893     }
1894 }
1895
1896 /**
1897  * gtk_tool_item_group_set_ellipsize:
1898  * @group: a #GtkToolItemGroup
1899  * @ellipsize: the #PangoEllipsizeMode labels in @group should use
1900  *
1901  * Sets the ellipsization mode which should be used by labels in @group.
1902  *
1903  * Since: 2.20
1904  */
1905 void
1906 gtk_tool_item_group_set_ellipsize (GtkToolItemGroup   *group,
1907                                    PangoEllipsizeMode  ellipsize)
1908 {
1909   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
1910
1911   if (ellipsize != group->priv->ellipsize)
1912     {
1913       group->priv->ellipsize = ellipsize;
1914       gtk_tool_item_group_header_adjust_style (group);
1915       g_object_notify (G_OBJECT (group), "ellipsize");
1916       _gtk_tool_item_group_palette_reconfigured (group);
1917     }
1918 }
1919
1920 /**
1921  * gtk_tool_item_group_get_label:
1922  * @group: a #GtkToolItemGroup
1923  *
1924  * Gets the label of @group.
1925  *
1926  * Returns: the label of @group. The label is an internal string of @group
1927  *     and must not be modified. Note that %NULL is returned if a custom
1928  *     label has been set with gtk_tool_item_group_set_label_widget()
1929  *
1930  * Since: 2.20
1931  */
1932 G_CONST_RETURN gchar*
1933 gtk_tool_item_group_get_label (GtkToolItemGroup *group)
1934 {
1935   GtkToolItemGroupPrivate *priv;
1936
1937   g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), NULL);
1938
1939   priv = group->priv;
1940
1941   if (GTK_IS_LABEL (priv->label_widget))
1942     return gtk_label_get_label (GTK_LABEL (priv->label_widget));
1943   else
1944     return NULL;
1945 }
1946
1947 /**
1948  * gtk_tool_item_group_get_label_widget:
1949  * @group: a #GtkToolItemGroup
1950  *
1951  * Gets the label widget of @group.
1952  * See gtk_tool_item_group_set_label_widget().
1953  *
1954  * Returns: the label widget of @group
1955  *
1956  * Since: 2.20
1957  */
1958 GtkWidget*
1959 gtk_tool_item_group_get_label_widget (GtkToolItemGroup *group)
1960 {
1961   GtkWidget *alignment = gtk_tool_item_group_get_alignment (group);
1962
1963   return gtk_bin_get_child (GTK_BIN (alignment));
1964 }
1965
1966 /**
1967  * gtk_tool_item_group_get_collapsed:
1968  * @group: a GtkToolItemGroup
1969  *
1970  * Gets whether @group is collapsed or expanded.
1971  *
1972  * Returns: %TRUE if @group is collapsed, %FALSE if it is expanded
1973  *
1974  * Since: 2.20
1975  */
1976 gboolean
1977 gtk_tool_item_group_get_collapsed (GtkToolItemGroup *group)
1978 {
1979   g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), DEFAULT_COLLAPSED);
1980
1981   return group->priv->collapsed;
1982 }
1983
1984 /**
1985  * gtk_tool_item_group_get_ellipsize:
1986  * @group: a #GtkToolItemGroup
1987  *
1988  * Gets the ellipsization mode of @group.
1989  *
1990  * Returns: the #PangoEllipsizeMode of @group
1991  *
1992  * Since: 2.20
1993  */
1994 PangoEllipsizeMode
1995 gtk_tool_item_group_get_ellipsize (GtkToolItemGroup *group)
1996 {
1997   g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), DEFAULT_ELLIPSIZE);
1998
1999   return group->priv->ellipsize;
2000 }
2001
2002 /**
2003  * gtk_tool_item_group_get_header_relief:
2004  * @group: a #GtkToolItemGroup
2005  *
2006  * Gets the relief mode of the header button of @group.
2007  *
2008  * Returns: the #GtkReliefStyle
2009  *
2010  * Since: 2.20
2011  */
2012 GtkReliefStyle
2013 gtk_tool_item_group_get_header_relief (GtkToolItemGroup   *group)
2014 {
2015   g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), GTK_RELIEF_NORMAL);
2016
2017   return gtk_button_get_relief (GTK_BUTTON (group->priv->header));
2018 }
2019
2020 /**
2021  * gtk_tool_item_group_insert:
2022  * @group: a #GtkToolItemGroup
2023  * @item: the #GtkToolItem to insert into @group
2024  * @position: the position of @item in @group, starting with 0.
2025  *     The position -1 means end of list.
2026  *
2027  * Inserts @item at @position in the list of children of @group.
2028  *
2029  * Since: 2.20
2030  */
2031 void
2032 gtk_tool_item_group_insert (GtkToolItemGroup *group,
2033                             GtkToolItem      *item,
2034                             gint              position)
2035 {
2036   GtkWidget *parent, *child_widget;
2037   GtkToolItemGroupChild *child;
2038
2039   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
2040   g_return_if_fail (GTK_IS_TOOL_ITEM (item));
2041   g_return_if_fail (position >= -1);
2042
2043   parent = gtk_widget_get_parent (GTK_WIDGET (group));
2044
2045   child = g_new (GtkToolItemGroupChild, 1);
2046   child->item = g_object_ref_sink (item);
2047   child->homogeneous = TRUE;
2048   child->expand = FALSE;
2049   child->fill = TRUE;
2050   child->new_row = FALSE;
2051
2052   group->priv->children = g_list_insert (group->priv->children, child, position);
2053
2054   if (GTK_IS_TOOL_PALETTE (parent))
2055     _gtk_tool_palette_child_set_drag_source (GTK_WIDGET (item), parent);
2056
2057   child_widget = gtk_bin_get_child (GTK_BIN (item));
2058
2059   if (GTK_IS_BUTTON (child_widget))
2060     gtk_button_set_focus_on_click (GTK_BUTTON (child_widget), TRUE);
2061
2062   gtk_widget_set_parent (GTK_WIDGET (item), GTK_WIDGET (group));
2063 }
2064
2065 /**
2066  * gtk_tool_item_group_set_item_position:
2067  * @group: a #GtkToolItemGroup
2068  * @item: the #GtkToolItem to move to a new position, should
2069  *     be a child of @group.
2070  * @position: the new position of @item in @group, starting with 0.
2071  *     The position -1 means end of list.
2072  *
2073  * Sets the position of @item in the list of children of @group.
2074  *
2075  * Since: 2.20
2076  */
2077 void
2078 gtk_tool_item_group_set_item_position (GtkToolItemGroup *group,
2079                                        GtkToolItem      *item,
2080                                        gint              position)
2081 {
2082   gint old_position;
2083   GList *link;
2084   GtkToolItemGroupChild *child;
2085   GtkToolItemGroupPrivate* priv;
2086
2087   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
2088   g_return_if_fail (GTK_IS_TOOL_ITEM (item));
2089   g_return_if_fail (position >= -1);
2090
2091   child = gtk_tool_item_group_get_child (group, item, &old_position, &link);
2092   priv = group->priv;
2093
2094   g_return_if_fail (child != NULL);
2095
2096   if (position == old_position)
2097     return;
2098
2099   priv->children = g_list_delete_link (priv->children, link);
2100   priv->children = g_list_insert (priv->children, child, position);
2101
2102   gtk_widget_child_notify (GTK_WIDGET (item), "position");
2103   if (gtk_widget_get_visible (GTK_WIDGET (group)) &&
2104       gtk_widget_get_visible (GTK_WIDGET (item)))
2105     gtk_widget_queue_resize (GTK_WIDGET (group));
2106 }
2107
2108 /**
2109  * gtk_tool_item_group_get_item_position:
2110  * @group: a #GtkToolItemGroup
2111  * @item: a #GtkToolItem
2112  *
2113  * Gets the position of @item in @group as index.
2114  *
2115  * Returns: the index of @item in @group or -1 if @item is no child of @group
2116  *
2117  * Since: 2.20
2118  */
2119 gint
2120 gtk_tool_item_group_get_item_position (GtkToolItemGroup *group,
2121                                        GtkToolItem      *item)
2122 {
2123   gint position;
2124
2125   g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), -1);
2126   g_return_val_if_fail (GTK_IS_TOOL_ITEM (item), -1);
2127
2128   if (gtk_tool_item_group_get_child (group, item, &position, NULL))
2129     return position;
2130
2131   return -1;
2132 }
2133
2134 /**
2135  * gtk_tool_item_group_get_n_items:
2136  * @group: a #GtkToolItemGroup
2137  *
2138  * Gets the number of tool items in @group.
2139  *
2140  * Returns: the number of tool items in @group
2141  *
2142  * Since: 2.20
2143  */
2144 guint
2145 gtk_tool_item_group_get_n_items (GtkToolItemGroup *group)
2146 {
2147   g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), 0);
2148
2149   return g_list_length (group->priv->children);
2150 }
2151
2152 /**
2153  * gtk_tool_item_group_get_nth_item:
2154  * @group: a #GtkToolItemGroup
2155  * @index: the index
2156  *
2157  * Gets the tool item at @index in group.
2158  *
2159  * Returns: the #GtkToolItem at index
2160  *
2161  * Since: 2.20
2162  */
2163 GtkToolItem*
2164 gtk_tool_item_group_get_nth_item (GtkToolItemGroup *group,
2165                                   guint             index)
2166 {
2167   GtkToolItemGroupChild *child;
2168
2169   g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), NULL);
2170
2171   child = g_list_nth_data (group->priv->children, index);
2172
2173   return child != NULL ? child->item : NULL;
2174 }
2175
2176 /**
2177  * gtk_tool_item_group_get_drop_item:
2178  * @group: a #GtkToolItemGroup
2179  * @x: the x position
2180  * @y: the y position
2181  *
2182  * Gets the tool item at position (x, y).
2183  *
2184  * Returns: the #GtkToolItem at position (x, y)
2185  *
2186  * Since: 2.20
2187  */
2188 GtkToolItem*
2189 gtk_tool_item_group_get_drop_item (GtkToolItemGroup *group,
2190                                    gint              x,
2191                                    gint              y)
2192 {
2193   GtkAllocation *allocation;
2194   GtkOrientation orientation;
2195   GList *it;
2196
2197   g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), NULL);
2198
2199   allocation = &GTK_WIDGET (group)->allocation;
2200   orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
2201
2202   g_return_val_if_fail (x >= 0 && x < allocation->width, NULL);
2203   g_return_val_if_fail (y >= 0 && y < allocation->height, NULL);
2204
2205   for (it = group->priv->children; it != NULL; it = it->next)
2206     {
2207       GtkToolItemGroupChild *child = it->data;
2208       GtkToolItem *item = child->item;
2209       gint x0, y0;
2210
2211       if (!item || !gtk_tool_item_group_is_item_visible (group, child))
2212         continue;
2213
2214       allocation = &GTK_WIDGET (item)->allocation;
2215
2216       x0 = x - allocation->x;
2217       y0 = y - allocation->y;
2218
2219       if (x0 >= 0 && x0 < allocation->width &&
2220           y0 >= 0 && y0 < allocation->height)
2221         return item;
2222     }
2223
2224   return NULL;
2225 }
2226
2227 void
2228 _gtk_tool_item_group_item_size_request (GtkToolItemGroup *group,
2229                                         GtkRequisition   *item_size,
2230                                         gboolean          homogeneous_only,
2231                                         gint             *requested_rows)
2232 {
2233   GtkRequisition child_requisition;
2234   GList *it;
2235   gint rows = 0;
2236   gboolean new_row = TRUE;
2237   GtkOrientation orientation;
2238   GtkToolbarStyle style;
2239
2240   g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
2241   g_return_if_fail (NULL != item_size);
2242
2243   orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
2244   style = gtk_tool_shell_get_style (GTK_TOOL_SHELL (group));
2245
2246   item_size->width = item_size->height = 0;
2247
2248   for (it = group->priv->children; it != NULL; it = it->next)
2249     {
2250       GtkToolItemGroupChild *child = it->data;
2251
2252       if (!gtk_tool_item_group_is_item_visible (group, child))
2253         continue;
2254
2255       if (child->new_row || new_row)
2256         {
2257           rows++;
2258           new_row = FALSE;
2259         }
2260
2261       if (!child->homogeneous && child->expand)
2262           new_row = TRUE;
2263
2264       gtk_widget_size_request (GTK_WIDGET (child->item), &child_requisition);
2265
2266       if (!homogeneous_only || child->homogeneous)
2267         item_size->width = MAX (item_size->width, child_requisition.width);
2268       item_size->height = MAX (item_size->height, child_requisition.height);
2269     }
2270
2271   if (requested_rows)
2272     *requested_rows = rows;
2273 }
2274
2275 void
2276 _gtk_tool_item_group_paint (GtkToolItemGroup *group,
2277                             cairo_t          *cr)
2278 {
2279   GtkWidget *widget = GTK_WIDGET (group);
2280   GtkToolItemGroupPrivate* priv = group->priv;
2281
2282   gdk_cairo_set_source_pixmap (cr, widget->window,
2283                                widget->allocation.x,
2284                                widget->allocation.y);
2285
2286   if (priv->animation_timeout)
2287     {
2288       GtkOrientation orientation = gtk_tool_item_group_get_orientation (GTK_TOOL_SHELL (group));
2289       cairo_pattern_t *mask;
2290       gdouble v0, v1;
2291
2292       if (GTK_ORIENTATION_VERTICAL == orientation)
2293         v1 = widget->allocation.height;
2294       else
2295         v1 = widget->allocation.width;
2296
2297       v0 = v1 - 256;
2298
2299       if (!gtk_widget_get_visible (priv->header))
2300         v0 = MAX (v0, 0);
2301       else if (GTK_ORIENTATION_VERTICAL == orientation)
2302         v0 = MAX (v0, priv->header->allocation.height);
2303       else
2304         v0 = MAX (v0, priv->header->allocation.width);
2305
2306       v1 = MIN (v0 + 256, v1);
2307
2308       if (GTK_ORIENTATION_VERTICAL == orientation)
2309         {
2310           v0 += widget->allocation.y;
2311           v1 += widget->allocation.y;
2312
2313           mask = cairo_pattern_create_linear (0.0, v0, 0.0, v1);
2314         }
2315       else
2316         {
2317           v0 += widget->allocation.x;
2318           v1 += widget->allocation.x;
2319
2320           mask = cairo_pattern_create_linear (v0, 0.0, v1, 0.0);
2321         }
2322
2323       cairo_pattern_add_color_stop_rgba (mask, 0.00, 0.0, 0.0, 0.0, 1.00);
2324       cairo_pattern_add_color_stop_rgba (mask, 0.25, 0.0, 0.0, 0.0, 0.25);
2325       cairo_pattern_add_color_stop_rgba (mask, 0.50, 0.0, 0.0, 0.0, 0.10);
2326       cairo_pattern_add_color_stop_rgba (mask, 0.75, 0.0, 0.0, 0.0, 0.01);
2327       cairo_pattern_add_color_stop_rgba (mask, 1.00, 0.0, 0.0, 0.0, 0.00);
2328
2329       cairo_mask (cr, mask);
2330       cairo_pattern_destroy (mask);
2331     }
2332   else
2333     cairo_paint (cr);
2334 }
2335
2336 gint
2337 _gtk_tool_item_group_get_size_for_limit (GtkToolItemGroup *group,
2338                                          gint              limit,
2339                                          gboolean          vertical,
2340                                          gboolean          animation)
2341 {
2342   GtkRequisition requisition;
2343   GtkToolItemGroupPrivate* priv = group->priv;
2344
2345   gtk_widget_size_request (GTK_WIDGET (group), &requisition);
2346
2347   if (!priv->collapsed || priv->animation_timeout)
2348     {
2349       GtkAllocation allocation = { 0, 0, requisition.width, requisition.height };
2350       GtkRequisition inquery;
2351
2352       if (vertical)
2353         allocation.width = limit;
2354       else
2355         allocation.height = limit;
2356
2357       gtk_tool_item_group_real_size_query (GTK_WIDGET (group),
2358                                            &allocation, &inquery);
2359
2360       if (vertical)
2361         inquery.height -= requisition.height;
2362       else
2363         inquery.width -= requisition.width;
2364
2365       if (priv->animation_timeout && animation)
2366         {
2367           gint64 timestamp = gtk_tool_item_group_get_animation_timestamp (group);
2368
2369           timestamp = MIN (timestamp, ANIMATION_DURATION);
2370
2371           if (priv->collapsed)
2372             timestamp = ANIMATION_DURATION - timestamp;
2373
2374           if (vertical)
2375             {
2376               inquery.height *= timestamp;
2377               inquery.height /= ANIMATION_DURATION;
2378             }
2379           else
2380             {
2381               inquery.width *= timestamp;
2382               inquery.width /= ANIMATION_DURATION;
2383             }
2384         }
2385
2386       if (vertical)
2387         requisition.height += inquery.height;
2388       else
2389         requisition.width += inquery.width;
2390     }
2391
2392   return (vertical ? requisition.height : requisition.width);
2393 }
2394
2395 gint
2396 _gtk_tool_item_group_get_height_for_width (GtkToolItemGroup *group,
2397                                            gint              width)
2398 {
2399   return _gtk_tool_item_group_get_size_for_limit (group, width, TRUE, group->priv->animation);
2400 }
2401
2402 gint
2403 _gtk_tool_item_group_get_width_for_height (GtkToolItemGroup *group,
2404                                            gint              height)
2405 {
2406   return _gtk_tool_item_group_get_size_for_limit (group, height, FALSE, TRUE);
2407 }
2408
2409 static void
2410 gtk_tool_palette_reconfigured_foreach_item (GtkWidget *child,
2411                                             gpointer   data)
2412 {
2413   if (GTK_IS_TOOL_ITEM (child))
2414     gtk_tool_item_toolbar_reconfigured (GTK_TOOL_ITEM (child));
2415 }
2416
2417
2418 void
2419 _gtk_tool_item_group_palette_reconfigured (GtkToolItemGroup *group)
2420 {
2421   gtk_container_foreach (GTK_CONTAINER (group),
2422                          gtk_tool_palette_reconfigured_foreach_item,
2423                          NULL);
2424
2425   gtk_tool_item_group_header_adjust_style (group);
2426 }
2427
2428
2429 #define __GTK_TOOL_ITEM_GROUP_C__
2430 #include "gtkaliasdef.c"