src/gtk/gtkcmoptionmenu.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Jsh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include <config.h>
  28 #include <glib.h>
  29 #include <gtk/gtk.h>
  30 #include <gdk/gdkkeysyms.h>
  31
  32 #include "claws-marshal.h"
  33 #include "gtkcmoptionmenu.h"
  34 #include "utils.h"
  35 #include "gtkutils.h"
  36
  37 #define CHILD_LEFT_SPACING        4
  38 #define CHILD_RIGHT_SPACING       1
  39 #define CHILD_TOP_SPACING         1
  40 #define CHILD_BOTTOM_SPACING      1
  41
  42 typedef struct _GtkCMOptionMenuProps GtkCMOptionMenuProps;
  43
  44 struct _GtkCMOptionMenuProps
  45 {
  46   gboolean interior_focus;
  47   GtkRequisition indicator_size;
  48   GtkBorder indicator_spacing;
  49   gint focus_width;
  50   gint focus_pad;
  51 };
  52
  53 static const GtkCMOptionMenuProps default_props = {
  54   TRUE,
  55   { 7, 13 },
  56   { 7, 5, 2, 2 },               /* Left, right, top, bottom */
  57   1,
  58   0
  59 };
  60
  61 static void gtk_cmoption_menu_destroy         (GtkObject          *object);
  62 static void gtk_cmoption_menu_set_property    (GObject            *object,
  63                                              guint               prop_id,
  64                                              const GValue       *value,
  65                                              GParamSpec         *pspec);
  66 static void gtk_cmoption_menu_get_property    (GObject            *object,
  67                                              guint               prop_id,
  68                                              GValue             *value,
  69                                              GParamSpec         *pspec);
  70 static void gtk_cmoption_menu_size_request    (GtkWidget          *widget,
  71                                              GtkRequisition     *requisition);
  72 static void gtk_cmoption_menu_size_allocate   (GtkWidget          *widget,
  73                                              GtkAllocation      *allocation);
  74 static void gtk_cmoption_menu_paint           (GtkWidget          *widget,
  75                                              GdkRectangle       *area);
  76 static gint gtk_cmoption_menu_expose          (GtkWidget          *widget,
  77                                              GdkEventExpose     *event);
  78 static gint gtk_cmoption_menu_button_press    (GtkWidget          *widget,
  79                                              GdkEventButton     *event);
  80 static gint gtk_cmoption_menu_key_press     (GtkWidget          *widget,
  81                                              GdkEventKey        *event);
  82 static void gtk_cmoption_menu_selection_done  (GtkMenuShell       *menu_shell,
  83                                              GtkCMOptionMenu      *option_menu);
  84 static void gtk_cmoption_menu_update_contents (GtkCMOptionMenu      *option_menu);
  85 static void gtk_cmoption_menu_remove_contents (GtkCMOptionMenu      *option_menu);
  86 static void gtk_cmoption_menu_calc_size       (GtkCMOptionMenu      *option_menu);
  87 static void gtk_cmoption_menu_position        (GtkMenu            *menu,
  88                                              gint               *x,
  89                                              gint               *y,
  90                                              gint               *scroll_offet,
  91                                              gpointer            user_data);
  92 static void gtk_cmoption_menu_show_all        (GtkWidget          *widget);
  93 static void gtk_cmoption_menu_hide_all        (GtkWidget          *widget);
  94 static gboolean gtk_cmoption_menu_mnemonic_activate (GtkWidget    *widget,
  95                                                    gboolean      group_cycling);
  96 static GType gtk_cmoption_menu_child_type   (GtkContainer       *container);
  97 static gint gtk_cmoption_menu_scroll_event    (GtkWidget          *widget,
  98                                              GdkEventScroll     *event);
  99
 100 enum
 101 {
 102   CHANGED,
 103   LAST_SIGNAL
 104 };
 105
 106 enum
 107 {
 108   PROP_0,
 109   PROP_MENU,
 110   LAST_PROP
 111 };
 112
 113 static guint signals[LAST_SIGNAL] = { 0 };
 114
 115 G_DEFINE_TYPE (GtkCMOptionMenu, gtk_cmoption_menu, GTK_TYPE_BUTTON)
 116
 117 static void
 118 gtk_cmoption_menu_class_init (GtkCMOptionMenuClass *class)
 119 {
 120   GObjectClass *gobject_class;
 121   GtkObjectClass *object_class;
 122   GtkWidgetClass *widget_class;
 123   GtkContainerClass *container_class;
 124
 125   gobject_class = (GObjectClass*) class;
 126   object_class = (GtkObjectClass*) class;
 127   widget_class = (GtkWidgetClass*) class;
 128   container_class = (GtkContainerClass*) class;
 129
 130   signals[CHANGED] =
 131     g_signal_new (("changed"),
 132                   G_OBJECT_CLASS_TYPE (class),
 133                   G_SIGNAL_RUN_LAST,
 134                   G_STRUCT_OFFSET (GtkCMOptionMenuClass, changed),
 135                   NULL, NULL,
 136                   claws_marshal_VOID__VOID,
 137                   G_TYPE_NONE, 0);
 138
 139   gobject_class->set_property = gtk_cmoption_menu_set_property;
 140   gobject_class->get_property = gtk_cmoption_menu_get_property;
 141   object_class->destroy = gtk_cmoption_menu_destroy;
 142
 143   widget_class->size_request = gtk_cmoption_menu_size_request;
 144   widget_class->size_allocate = gtk_cmoption_menu_size_allocate;
 145   widget_class->expose_event = gtk_cmoption_menu_expose;
 146   widget_class->button_press_event = gtk_cmoption_menu_button_press;
 147   widget_class->key_press_event = gtk_cmoption_menu_key_press;
 148   widget_class->scroll_event = gtk_cmoption_menu_scroll_event;
 149   widget_class->show_all = gtk_cmoption_menu_show_all;
 150   widget_class->hide_all = gtk_cmoption_menu_hide_all;
 151   widget_class->mnemonic_activate = gtk_cmoption_menu_mnemonic_activate;
 152
 153   container_class->child_type = gtk_cmoption_menu_child_type;
 154
 155   g_object_class_install_property (gobject_class,
 156                                    PROP_MENU,
 157                                    g_param_spec_object ("menu",
 158                                                         ("Menu"),
 159                                                         ("The menu of options"),
 160                                                         GTK_TYPE_MENU,
 161                                                         G_PARAM_READWRITE));
 162
 163   gtk_widget_class_install_style_property (widget_class,
 164                                            g_param_spec_boxed ("indicator-size",
 165                                                                ("Indicator Size"),
 166                                                                ("Size of dropdown indicator"),
 167                                                                GTK_TYPE_REQUISITION,
 168                                                                G_PARAM_READABLE));
 169   gtk_widget_class_install_style_property (widget_class,
 170                                            g_param_spec_boxed ("indicator-spacing",
 171                                                                ("Indicator Spacing"),
 172                                                                ("Spacing around indicator"),
 173                                                                GTK_TYPE_BORDER,
 174                                                                G_PARAM_READABLE));
 175 }
 176
 177 static GType
 178 gtk_cmoption_menu_child_type (GtkContainer       *container)
 179 {
 180   return G_TYPE_NONE;
 181 }
 182
 183 static void
 184 gtk_cmoption_menu_init (GtkCMOptionMenu *option_menu)
 185 {
 186   gtk_widget_set_can_focus (GTK_WIDGET(option_menu), TRUE);
 187   gtk_widget_set_can_default (GTK_WIDGET(option_menu), FALSE);
 188   gtk_widget_set_receives_default (GTK_WIDGET(option_menu), FALSE);
 189
 190   option_menu->menu = NULL;
 191   option_menu->menu_item = NULL;
 192   option_menu->width = 0;
 193   option_menu->height = 0;
 194 }
 195
 196 GtkWidget*
 197 gtk_cmoption_menu_new (void)
 198 {
 199   return g_object_new (GTK_TYPE_CMOPTION_MENU, NULL);
 200 }
 201
 202 GtkWidget*
 203 gtk_cmoption_menu_get_menu (GtkCMOptionMenu *option_menu)
 204 {
 205   cm_return_val_if_fail (GTK_IS_CMOPTION_MENU (option_menu), NULL);
 206
 207   return option_menu->menu;
 208 }
 209
 210 static void
 211 gtk_cmoption_menu_detacher (GtkWidget     *widget,
 212                           GtkMenu       *menu)
 213 {
 214   GtkCMOptionMenu *option_menu;
 215
 216   cm_return_if_fail (GTK_IS_CMOPTION_MENU (widget));
 217
 218   option_menu = GTK_CMOPTION_MENU (widget);
 219   cm_return_if_fail (option_menu->menu == (GtkWidget*) menu);
 220
 221   gtk_cmoption_menu_remove_contents (option_menu);
 222   g_signal_handlers_disconnect_by_func (option_menu->menu,
 223                                         gtk_cmoption_menu_selection_done,
 224                                         option_menu);
 225   g_signal_handlers_disconnect_by_func (option_menu->menu,
 226                                         gtk_cmoption_menu_calc_size,
 227                                         option_menu);
 228
 229   option_menu->menu = NULL;
 230   g_object_notify (G_OBJECT (option_menu), "menu");
 231 }
 232
 233 void
 234 gtk_cmoption_menu_set_menu (GtkCMOptionMenu *option_menu,
 235                           GtkWidget     *menu)
 236 {
 237   cm_return_if_fail (GTK_IS_CMOPTION_MENU (option_menu));
 238   cm_return_if_fail (GTK_IS_MENU (menu));
 239
 240   if (option_menu->menu != menu)
 241     {
 242       gtk_cmoption_menu_remove_menu (option_menu);
 243
 244       option_menu->menu = menu;
 245       gtk_menu_attach_to_widget (GTK_MENU (menu),
 246                                  GTK_WIDGET (option_menu),
 247                                  gtk_cmoption_menu_detacher);
 248
 249       gtk_cmoption_menu_calc_size (option_menu);
 250
 251       g_signal_connect_after (option_menu->menu, "selection-done",
 252                               G_CALLBACK (gtk_cmoption_menu_selection_done),
 253                               option_menu);
 254       g_signal_connect_swapped (option_menu->menu, "size_request",
 255                                 G_CALLBACK (gtk_cmoption_menu_calc_size),
 256                                 option_menu);
 257
 258       if (gtk_widget_get_parent (GTK_WIDGET (option_menu)))
 259         gtk_widget_queue_resize (GTK_WIDGET (option_menu));
 260
 261       gtk_cmoption_menu_update_contents (option_menu);
 262
 263       g_object_notify (G_OBJECT (option_menu), "menu");
 264     }
 265 }
 266
 267 void
 268 gtk_cmoption_menu_remove_menu (GtkCMOptionMenu *option_menu)
 269 {
 270   cm_return_if_fail (GTK_IS_CMOPTION_MENU (option_menu));
 271
 272   if (option_menu->menu)
 273     {
 274       if (option_menu->menu_item ==
 275         gtk_menu_get_active (GTK_MENU (option_menu->menu)))
 276         gtk_menu_shell_cancel (GTK_MENU_SHELL (option_menu->menu));
 277
 278       gtk_menu_detach (GTK_MENU (option_menu->menu));
 279     }
 280 }
 281
 282 void
 283 gtk_cmoption_menu_set_history (GtkCMOptionMenu *option_menu,
 284                              guint          index)
 285 {
 286   GtkWidget *menu_item;
 287
 288   cm_return_if_fail (GTK_IS_CMOPTION_MENU (option_menu));
 289
 290   if (option_menu->menu)
 291     {
 292       gtk_menu_set_active (GTK_MENU (option_menu->menu), index);
 293       menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 294
 295       if (menu_item != option_menu->menu_item)
 296         gtk_cmoption_menu_update_contents (option_menu);
 297     }
 298 }
 299
 300 /**
 301  * gtk_cmoption_menu_get_history:
 302  * @option_menu: a #GtkCMOptionMenu
 303  *
 304  * Retrieves the index of the currently selected menu item. The menu
 305  * items are numbered from top to bottom, starting with 0.
 306  *
 307  * Return value: index of the selected menu item, or -1 if there are no menu items
 308  * Deprecated: 2.4: Use #GtkComboBox instead.
 309  **/
 310 gint
 311 gtk_cmoption_menu_get_history (GtkCMOptionMenu *option_menu)
 312 {
 313   GtkWidget *active_widget;
 314   GList *list;
 315   gint index;
 316
 317   cm_return_val_if_fail (GTK_IS_CMOPTION_MENU (option_menu), -1);
 318
 319   if (option_menu->menu)
 320     {
 321       active_widget = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 322
 323       if (active_widget)
 324         {
 325         list = gtk_container_get_children (GTK_CONTAINER
 326                 (GTK_MENU_SHELL (option_menu->menu)));
 327         index = g_list_index (list, active_widget);
 328         g_list_free (list);
 329
 330         return index;
 331         }
 332       else
 333         return -1;
 334     }
 335   else
 336     return -1;
 337 }
 338
 339 static void
 340 gtk_cmoption_menu_set_property (GObject            *object,
 341                               guint               prop_id,
 342                               const GValue       *value,
 343                               GParamSpec         *pspec)
 344 {
 345   GtkCMOptionMenu *option_menu = GTK_CMOPTION_MENU (object);
 346
 347   switch (prop_id)
 348     {
 349     case PROP_MENU:
 350       gtk_cmoption_menu_set_menu (option_menu, g_value_get_object (value));
 351       break;
 352
 353     default:
 354       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 355       break;
 356     }
 357 }
 358
 359 static void
 360 gtk_cmoption_menu_get_property (GObject            *object,
 361                               guint               prop_id,
 362                               GValue             *value,
 363                               GParamSpec         *pspec)
 364 {
 365   GtkCMOptionMenu *option_menu = GTK_CMOPTION_MENU (object);
 366
 367   switch (prop_id)
 368     {
 369     case PROP_MENU:
 370       g_value_set_object (value, option_menu->menu);
 371       break;
 372
 373     default:
 374       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 375       break;
 376     }
 377 }
 378
 379 static void
 380 gtk_cmoption_menu_destroy (GtkObject *object)
 381 {
 382   GtkCMOptionMenu *option_menu;
 383
 384   cm_return_if_fail (GTK_IS_CMOPTION_MENU (object));
 385
 386   option_menu = GTK_CMOPTION_MENU (object);
 387
 388   if (option_menu->menu)
 389     gtk_widget_destroy (option_menu->menu);
 390
 391   if (GTK_OBJECT_CLASS (gtk_cmoption_menu_parent_class)->destroy)
 392     (* GTK_OBJECT_CLASS (gtk_cmoption_menu_parent_class)->destroy) (object);
 393 }
 394
 395 static void
 396 gtk_cmoption_menu_get_props (GtkCMOptionMenu       *option_menu,
 397                            GtkCMOptionMenuProps  *props)
 398 {
 399   GtkRequisition *indicator_size;
 400   GtkBorder *indicator_spacing;
 401
 402   gtk_widget_style_get (GTK_WIDGET (option_menu),
 403                         "indicator-size", &indicator_size,
 404                         "indicator-spacing", &indicator_spacing,
 405                         "interior-focus", &props->interior_focus,
 406                         "focus-line-width", &props->focus_width,
 407                         "focus-padding", &props->focus_pad,
 408                         NULL);
 409
 410   if (indicator_size)
 411     props->indicator_size = *indicator_size;
 412   else
 413     props->indicator_size = default_props.indicator_size;
 414
 415   if (indicator_spacing)
 416     props->indicator_spacing = *indicator_spacing;
 417   else
 418     props->indicator_spacing = default_props.indicator_spacing;
 419
 420   gtk_requisition_free (indicator_size);
 421   gtk_border_free (indicator_spacing);
 422 }
 423
 424 static void
 425 gtk_cmoption_menu_size_request (GtkWidget      *widget,
 426                               GtkRequisition *requisition)
 427 {
 428   GtkCMOptionMenu *option_menu = GTK_CMOPTION_MENU (widget);
 429   GtkCMOptionMenuProps props;
 430   gint tmp;
 431   GtkWidget *child;
 432   GtkRequisition child_requisition = { 0, 0 };
 433   GtkStyle *style;
 434   gint border_width;
 435
 436   gtk_cmoption_menu_get_props (option_menu, &props);
 437
 438   child = gtk_bin_get_child (GTK_BIN (option_menu));
 439   if (child && gtk_widget_get_visible (child))
 440     {
 441       gtk_widget_size_request (child, &child_requisition);
 442
 443       requisition->width += child_requisition.width;
 444       requisition->height += child_requisition.height;
 445     }
 446
 447   border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
 448   style = gtk_widget_get_style (widget);
 449   requisition->width = ((border_width +
 450                          style->xthickness + props.focus_pad) * 2 +
 451                         MAX (child_requisition.width, option_menu->width) +
 452                         props.indicator_size.width +
 453                         props.indicator_spacing.left + props.indicator_spacing.right +
 454                         CHILD_LEFT_SPACING + CHILD_RIGHT_SPACING + props.focus_width * 2);
 455   requisition->height = ((border_width +
 456                           style->ythickness + props.focus_pad) * 2 +
 457                          MAX (child_requisition.height, option_menu->height) +
 458                          CHILD_TOP_SPACING + CHILD_BOTTOM_SPACING + props.focus_width * 2);
 459
 460   tmp = (requisition->height - MAX (child_requisition.height, option_menu->height) +
 461          props.indicator_size.height + props.indicator_spacing.top + props.indicator_spacing.bottom);
 462   requisition->height = MAX (requisition->height, tmp);
 463 }
 464
 465 static void
 466 gtk_cmoption_menu_size_allocate (GtkWidget     *widget,
 467                                GtkAllocation *allocation)
 468 {
 469   GtkWidget *child;
 470   GtkStyle *style;
 471   GtkButton *button = GTK_BUTTON (widget);
 472   GtkAllocation child_allocation, widget_allocation;
 473   GtkCMOptionMenuProps props;
 474   gint border_width;
 475
 476   gtk_cmoption_menu_get_props (GTK_CMOPTION_MENU (widget), &props);
 477   border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
 478
 479   gtk_widget_set_allocation (widget, allocation);
 480   if (gtk_widget_get_realized (widget))
 481         gdk_window_move_resize (gtk_button_get_event_window (button),
 482                             allocation->x + border_width, allocation->y + border_width,
 483                             allocation->width - border_width * 2, allocation->height - border_width * 2);
 484
 485   child = gtk_bin_get_child (GTK_BIN (widget));
 486   if (child && gtk_widget_get_visible (child))
 487     {
 488       style = gtk_widget_get_style (widget);
 489       gint xthickness = style->xthickness;
 490       gint ythickness = style->ythickness;
 491
 492       gtk_widget_get_allocation (widget, &widget_allocation);
 493       child_allocation.x = widget_allocation.x + border_width + xthickness + props.focus_width + props.focus_pad + CHILD_LEFT_SPACING;
 494       child_allocation.y = widget_allocation.y + border_width + ythickness + props.focus_width + props.focus_pad + CHILD_TOP_SPACING;
 495       child_allocation.width = MAX (1, allocation->width - (border_width + xthickness + props.focus_width + props.focus_pad) * 2 -
 496                                     props.indicator_size.width - props.indicator_spacing.left - props.indicator_spacing.right -
 497                                     CHILD_LEFT_SPACING - CHILD_RIGHT_SPACING);
 498       child_allocation.height = MAX (1, allocation->height - (border_width + ythickness + props.focus_width + props.focus_pad) * 2 -
 499                                      CHILD_TOP_SPACING - CHILD_BOTTOM_SPACING);
 500
 501       if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
 502         child_allocation.x += props.indicator_size.width + props.indicator_spacing.left + props.indicator_spacing.right;
 503
 504       gtk_widget_size_allocate (child, &child_allocation);
 505     }
 506 }
 507
 508 static void
 509 gtk_cmoption_menu_paint (GtkWidget    *widget,
 510                        GdkRectangle *area)
 511 {
 512   GtkAllocation allocation;
 513   GtkStyle *style;
 514   GdkRectangle button_area;
 515   GdkWindow *window;
 516   GtkCMOptionMenuProps props;
 517   gint border_width;
 518   gint tab_x;
 519
 520   cm_return_if_fail (GTK_IS_CMOPTION_MENU (widget));
 521   cm_return_if_fail (area != NULL);
 522
 523   if (gtk_widget_is_drawable (widget))
 524     {
 525       gtk_widget_get_allocation (widget, &allocation);
 526       border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
 527       gtk_cmoption_menu_get_props (GTK_CMOPTION_MENU (widget), &props);
 528
 529       button_area.x = allocation.x + border_width;
 530       button_area.y = allocation.y + border_width;
 531       button_area.width = allocation.width - 2 * border_width;
 532       button_area.height = allocation.height - 2 * border_width;
 533
 534       if (!props.interior_focus && gtk_widget_has_focus (widget))
 535         {
 536           button_area.x += props.focus_width + props.focus_pad;
 537           button_area.y += props.focus_width + props.focus_pad;
 538           button_area.width -= 2 * (props.focus_width + props.focus_pad);
 539           button_area.height -= 2 * (props.focus_width + props.focus_pad);
 540         }
 541
 542       style = gtk_widget_get_style (widget);
 543       window = gtk_widget_get_window (widget);
 544       gtk_paint_box (style, window,
 545                      gtk_widget_get_state (widget), GTK_SHADOW_OUT,
 546                      area, widget, "optionmenu",
 547                      button_area.x, button_area.y,
 548                      button_area.width, button_area.height);
 549
 550       if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
 551         tab_x = button_area.x + props.indicator_spacing.right +
 552           style->xthickness;
 553       else
 554         tab_x = button_area.x + button_area.width -
 555           props.indicator_size.width - props.indicator_spacing.right -
 556           style->xthickness;
 557
 558       gtk_paint_tab (style, window,
 559                      gtk_widget_get_state (widget), GTK_SHADOW_OUT,
 560                      area, widget, "optionmenutab",
 561                      tab_x,
 562                      button_area.y + (button_area.height - props.indicator_size.height) / 2,
 563                      props.indicator_size.width, props.indicator_size.height);
 564
 565       if (gtk_widget_has_focus (widget))
 566         {
 567           if (props.interior_focus)
 568             {
 569               button_area.x += style->xthickness + props.focus_pad;
 570               button_area.y += style->ythickness + props.focus_pad;
 571               button_area.width -= 2 * (style->xthickness + props.focus_pad) +
 572                       props.indicator_spacing.left +
 573                       props.indicator_spacing.right +
 574                       props.indicator_size.width;
 575               button_area.height -= 2 * (style->ythickness + props.focus_pad);
 576               if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
 577                 button_area.x += props.indicator_spacing.left +
 578                   props.indicator_spacing.right +
 579                   props.indicator_size.width;
 580             }
 581           else
 582             {
 583               button_area.x -= props.focus_width + props.focus_pad;
 584               button_area.y -= props.focus_width + props.focus_pad;
 585               button_area.width += 2 * (props.focus_width + props.focus_pad);
 586               button_area.height += 2 * (props.focus_width + props.focus_pad);
 587             }
 588
 589           gtk_paint_focus (style, window, gtk_widget_get_state (widget),
 590                            area, widget, "button",
 591                            button_area.x,
 592                            button_area.y,
 593                            button_area.width,
 594                            button_area.height);
 595         }
 596     }
 597 }
 598
 599 static gint
 600 gtk_cmoption_menu_expose (GtkWidget      *widget,
 601                         GdkEventExpose *event)
 602 {
 603   GtkWidget *child;
 604   cm_return_val_if_fail (GTK_IS_CMOPTION_MENU (widget), FALSE);
 605   cm_return_val_if_fail (event != NULL, FALSE);
 606
 607   if (gtk_widget_is_drawable (widget))
 608     {
 609       gtk_cmoption_menu_paint (widget, &event->area);
 610
 611
 612       /* The following code tries to draw the child in two places at
 613        * once. It fails miserably for several reasons
 614        *
 615        * - If the child is not no-window, removing generates
 616        *   more expose events. Bad, bad, bad.
 617        *
 618        * - Even if the child is no-window, removing it now (properly)
 619        *   clears the space where it was, so it does no good
 620        */
 621
 622 #if 0
 623       remove_child = FALSE;
 624       child = GTK_BUTTON (widget)->child;
 625
 626       if (!child)
 627         {
 628           if (!GTK_CMOPTION_MENU (widget)->menu)
 629             return FALSE;
 630           gtk_cmoption_menu_update_contents (GTK_CMOPTION_MENU (widget));
 631           child = GTK_BUTTON (widget)->child;
 632           if (!child)
 633             return FALSE;
 634           remove_child = TRUE;
 635         }
 636
 637       child_event = *event;
 638
 639       if (GTK_WIDGET_NO_WINDOW (child) &&
 640           gtk_widget_intersect (child, &event->area, &child_event.area))
 641         gtk_widget_event (child, (GdkEvent*) &child_event);
 642
 643       if (remove_child)
 644         gtk_cmoption_menu_remove_contents (GTK_CMOPTION_MENU (widget));
 645 #else
 646       child = gtk_bin_get_child (GTK_BIN (widget));
 647       if (child)
 648         gtk_container_propagate_expose (GTK_CONTAINER (widget),
 649                                         child,
 650                                         event);
 651 #endif /* 0 */
 652     }
 653
 654   return FALSE;
 655 }
 656
 657 static gint
 658 gtk_cmoption_menu_button_press (GtkWidget      *widget,
 659                               GdkEventButton *event)
 660 {
 661   GtkCMOptionMenu *option_menu;
 662   GtkWidget *menu_item;
 663
 664   cm_return_val_if_fail (GTK_IS_CMOPTION_MENU (widget), FALSE);
 665   cm_return_val_if_fail (event != NULL, FALSE);
 666
 667   option_menu = GTK_CMOPTION_MENU (widget);
 668
 669   if ((event->type == GDK_BUTTON_PRESS) &&
 670       (event->button == 1))
 671     {
 672       gtk_cmoption_menu_remove_contents (option_menu);
 673       gtk_menu_popup (GTK_MENU (option_menu->menu), NULL, NULL,
 674                       gtk_cmoption_menu_position, option_menu,
 675                       event->button, event->time);
 676       menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 677       if (menu_item)
 678         gtk_menu_shell_select_item (GTK_MENU_SHELL (option_menu->menu), menu_item);
 679       return TRUE;
 680     }
 681
 682   return FALSE;
 683 }
 684
 685 static gint
 686 gtk_cmoption_menu_key_press (GtkWidget   *widget,
 687                            GdkEventKey *event)
 688 {
 689   GtkCMOptionMenu *option_menu;
 690   GtkWidget *menu_item;
 691
 692   cm_return_val_if_fail (GTK_IS_CMOPTION_MENU (widget), FALSE);
 693   cm_return_val_if_fail (event != NULL, FALSE);
 694
 695   option_menu = GTK_CMOPTION_MENU (widget);
 696
 697   switch (event->keyval)
 698     {
 699     case GDK_KEY_KP_Space:
 700     case GDK_KEY_space:
 701       gtk_cmoption_menu_remove_contents (option_menu);
 702       gtk_menu_popup (GTK_MENU (option_menu->menu), NULL, NULL,
 703                       gtk_cmoption_menu_position, option_menu,
 704                       0, event->time);
 705       menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 706       if (menu_item)
 707         gtk_menu_shell_select_item (GTK_MENU_SHELL (option_menu->menu), menu_item);
 708       return TRUE;
 709     }
 710
 711   return FALSE;
 712 }
 713
 714 static void
 715 gtk_cmoption_menu_selection_done (GtkMenuShell  *menu_shell,
 716                                 GtkCMOptionMenu *option_menu)
 717 {
 718   cm_return_if_fail (menu_shell != NULL);
 719   cm_return_if_fail (GTK_IS_CMOPTION_MENU (option_menu));
 720
 721   gtk_cmoption_menu_update_contents (option_menu);
 722 }
 723
 724 static void
 725 gtk_cmoption_menu_changed (GtkCMOptionMenu *option_menu)
 726 {
 727   cm_return_if_fail (GTK_IS_CMOPTION_MENU (option_menu));
 728
 729   g_signal_emit (option_menu, signals[CHANGED], 0);
 730 }
 731
 732 static void
 733 gtk_cmoption_menu_select_first_sensitive (GtkCMOptionMenu *option_menu)
 734 {
 735   if (option_menu->menu)
 736     {
 737       GList *children = gtk_container_get_children (GTK_CONTAINER (GTK_MENU_SHELL (option_menu->menu)));
 738       gint index = 0;
 739
 740       while (children)
 741         {
 742           if (gtk_widget_get_sensitive (children->data))
 743             {
 744               gtk_cmoption_menu_set_history (option_menu, index);
 745               return;
 746             }
 747
 748           children = children->next;
 749           index++;
 750         }
 751
 752         g_list_free (children);
 753     }
 754 }
 755
 756 static void
 757 gtk_cmoption_menu_item_state_changed_cb (GtkWidget      *widget,
 758                                        GtkStateType    previous_state,
 759                                        GtkCMOptionMenu  *option_menu)
 760 {
 761   GtkWidget *child = gtk_bin_get_child (GTK_BIN (option_menu));
 762
 763   if (child && gtk_widget_get_sensitive (child) != gtk_widget_is_sensitive (widget))
 764     gtk_widget_set_sensitive (child, gtk_widget_is_sensitive (widget));
 765 }
 766
 767 static void
 768 gtk_cmoption_menu_item_destroy_cb (GtkWidget     *widget,
 769                                  GtkCMOptionMenu *option_menu)
 770 {
 771   GtkWidget *child = gtk_bin_get_child (GTK_BIN (option_menu));
 772
 773   if (child)
 774     {
 775       g_object_ref (child);
 776       gtk_cmoption_menu_remove_contents (option_menu);
 777       gtk_widget_destroy (child);
 778       g_object_unref (child);
 779
 780       gtk_cmoption_menu_select_first_sensitive (option_menu);
 781     }
 782 }
 783
 784 static void
 785 gtk_cmoption_menu_update_contents (GtkCMOptionMenu *option_menu)
 786 {
 787   GtkWidget *child;
 788   GtkRequisition child_requisition;
 789   GtkAllocation allocation;
 790
 791   cm_return_if_fail (GTK_IS_CMOPTION_MENU (option_menu));
 792
 793   if (option_menu->menu)
 794     {
 795       GtkWidget *old_item = option_menu->menu_item;
 796
 797       gtk_cmoption_menu_remove_contents (option_menu);
 798
 799       option_menu->menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 800       if (option_menu->menu_item)
 801         {
 802           g_object_ref (option_menu->menu_item);
 803           child = gtk_bin_get_child (GTK_BIN (option_menu->menu_item));
 804           if (child)
 805             {
 806               if (!gtk_widget_is_sensitive (option_menu->menu_item))
 807                 gtk_widget_set_sensitive (child, FALSE);
 808               gtk_widget_reparent (child, GTK_WIDGET (option_menu));
 809             }
 810
 811           g_signal_connect (option_menu->menu_item, "state_changed",
 812                             G_CALLBACK (gtk_cmoption_menu_item_state_changed_cb), option_menu);
 813           g_signal_connect (option_menu->menu_item, "destroy",
 814                             G_CALLBACK (gtk_cmoption_menu_item_destroy_cb), option_menu);
 815
 816           gtk_widget_size_request (child, &child_requisition);
 817           gtk_widget_get_allocation (GTK_WIDGET (option_menu), &allocation);
 818           gtk_widget_size_allocate (GTK_WIDGET (option_menu),
 819                                     &allocation);
 820
 821           if (gtk_widget_is_drawable (GTK_WIDGET(option_menu)))
 822             gtk_widget_queue_draw (GTK_WIDGET (option_menu));
 823         }
 824
 825       if (old_item != option_menu->menu_item)
 826         gtk_cmoption_menu_changed (option_menu);
 827     }
 828 }
 829
 830 static void
 831 gtk_cmoption_menu_remove_contents (GtkCMOptionMenu *option_menu)
 832 {
 833   GtkWidget *child;
 834
 835   cm_return_if_fail (GTK_IS_CMOPTION_MENU (option_menu));
 836
 837   if (option_menu->menu_item)
 838     {
 839       child = gtk_bin_get_child (GTK_BIN (option_menu));
 840
 841       if (child)
 842         {
 843           gtk_widget_set_sensitive (child, TRUE);
 844           gtk_widget_set_state (child, GTK_STATE_NORMAL);
 845           gtk_widget_reparent (child, option_menu->menu_item);
 846         }
 847
 848       g_signal_handlers_disconnect_by_func (option_menu->menu_item,
 849                                             gtk_cmoption_menu_item_state_changed_cb,
 850                                             option_menu);
 851       g_signal_handlers_disconnect_by_func (option_menu->menu_item,
 852                                             gtk_cmoption_menu_item_destroy_cb,
 853                                             option_menu);
 854
 855       g_object_unref (option_menu->menu_item);
 856       option_menu->menu_item = NULL;
 857     }
 858 }
 859
 860 static void
 861 gtk_cmoption_menu_calc_size (GtkCMOptionMenu *option_menu)
 862 {
 863   GtkWidget *child;
 864   GList *children, *walk;
 865   GtkRequisition child_requisition;
 866   gint old_width = option_menu->width;
 867   gint old_height = option_menu->height;
 868
 869   cm_return_if_fail (GTK_IS_CMOPTION_MENU (option_menu));
 870
 871   option_menu->width = 0;
 872   option_menu->height = 0;
 873
 874   if (option_menu->menu)
 875     {
 876       children = gtk_container_get_children (GTK_CONTAINER (GTK_MENU_SHELL (option_menu->menu)));
 877       walk = children;
 878       while (walk)
 879         {
 880           child = walk->data;
 881           walk = walk->next;
 882
 883           if (gtk_widget_get_visible (child))
 884             {
 885               GtkWidget *inner = gtk_bin_get_child (GTK_BIN (child));
 886
 887               if (inner)
 888                 {
 889                   gtk_widget_size_request (inner, &child_requisition);
 890
 891                   option_menu->width = MAX (option_menu->width, child_requisition.width);
 892                   option_menu->height = MAX (option_menu->height, child_requisition.height);
 893                 }
 894             }
 895         }
 896
 897         g_list_free(children);
 898     }
 899
 900   if (old_width != option_menu->width || old_height != option_menu->height)
 901     gtk_widget_queue_resize (GTK_WIDGET (option_menu));
 902 }
 903
 904 static void
 905 gtk_cmoption_menu_position (GtkMenu  *menu,
 906                           gint     *x,
 907                           gint     *y,
 908                           gboolean *push_in,
 909                           gpointer  user_data)
 910 {
 911   GtkCMOptionMenu *option_menu;
 912   GtkWidget *active;
 913   GtkWidget *child;
 914   GtkWidget *widget;
 915   GtkRequisition requisition;
 916   GtkAllocation allocation;
 917   GList *children, *cur;
 918   gint screen_width;
 919   gint menu_xpos;
 920   gint menu_ypos;
 921   gint menu_width;
 922
 923   cm_return_if_fail (GTK_IS_CMOPTION_MENU (user_data));
 924
 925   option_menu = GTK_CMOPTION_MENU (user_data);
 926   widget = GTK_WIDGET (option_menu);
 927
 928   gtk_widget_get_child_requisition (GTK_WIDGET (menu), &requisition);
 929   menu_width = requisition.width;
 930
 931   active = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 932   gdk_window_get_origin (gtk_widget_get_window (widget), &menu_xpos, &menu_ypos);
 933
 934   gtk_widget_get_allocation (widget, &allocation);
 935   menu_xpos += allocation.x;
 936   menu_ypos += allocation.y + allocation.height / 2 - 2;
 937
 938   if (active != NULL)
 939     {
 940       gtk_widget_get_child_requisition (active, &requisition);
 941       menu_ypos -= requisition.height / 2;
 942     }
 943
 944   children = gtk_container_get_children (GTK_CONTAINER (GTK_MENU_SHELL (option_menu->menu)));
 945   for (cur = children; cur && cur->data; cur = cur->next)
 946     {
 947       child = cur->data;
 948
 949       if (active == child)
 950         break;
 951
 952       if (gtk_widget_get_visible (child))
 953         {
 954           gtk_widget_get_child_requisition (child, &requisition);
 955           menu_ypos -= requisition.height;
 956         }
 957     }
 958
 959   g_list_free (children);
 960
 961   if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
 962         menu_xpos = menu_xpos + allocation.width - menu_width;
 963
 964   /* Clamp the position on screen */
 965   screen_width = gdk_screen_get_width (gtk_widget_get_screen (widget));
 966
 967   if (menu_xpos < 0)
 968     menu_xpos = 0;
 969   else if ((menu_xpos + menu_width) > screen_width)
 970     menu_xpos -= ((menu_xpos + menu_width) - screen_width);
 971
 972   *x = menu_xpos;
 973   *y = menu_ypos;
 974   *push_in = TRUE;
 975 }
 976
 977
 978 static void
 979 gtk_cmoption_menu_show_all (GtkWidget *widget)
 980 {
 981   GtkContainer *container;
 982   GtkCMOptionMenu *option_menu;
 983
 984   cm_return_if_fail (GTK_IS_CMOPTION_MENU (widget));
 985   container = GTK_CONTAINER (widget);
 986   option_menu = GTK_CMOPTION_MENU (widget);
 987
 988   gtk_widget_show (widget);
 989   gtk_container_foreach (container, (GtkCallback) gtk_widget_show_all, NULL);
 990   if (option_menu->menu)
 991     gtk_widget_show_all (option_menu->menu);
 992   if (option_menu->menu_item)
 993     gtk_widget_show_all (option_menu->menu_item);
 994 }
 995
 996
 997 static void
 998 gtk_cmoption_menu_hide_all (GtkWidget *widget)
 999 {
1000   GtkContainer *container;
1001
1002   cm_return_if_fail (GTK_IS_CMOPTION_MENU (widget));
1003   container = GTK_CONTAINER (widget);
1004
1005   gtk_widget_hide (widget);
1006   gtk_container_foreach (container, (GtkCallback) gtk_widget_hide, NULL);
1007 }
1008
1009 static gboolean
1010 gtk_cmoption_menu_mnemonic_activate (GtkWidget *widget,
1011                                    gboolean   group_cycling)
1012 {
1013   gtk_widget_grab_focus (widget);
1014   return TRUE;
1015 }
1016
1017 static gint
1018 gtk_cmoption_menu_scroll_event (GtkWidget          *widget,
1019                               GdkEventScroll     *event)
1020 {
1021   GtkCMOptionMenu *option_menu = GTK_CMOPTION_MENU (widget);
1022   gint index, n_children;
1023   gint index_dir;
1024   GList *l, *children;
1025   GtkMenuItem *item;
1026
1027   index = gtk_cmoption_menu_get_history (option_menu);
1028
1029   if (index != -1)
1030     {
1031       children = gtk_container_get_children (GTK_CONTAINER (GTK_MENU_SHELL (option_menu->menu)));
1032       n_children = (gint)g_list_length (children);
1033
1034       if (event->direction == GDK_SCROLL_UP)
1035         index_dir = -1;
1036       else
1037         index_dir = 1;
1038
1039
1040       while (TRUE)
1041         {
1042           index += index_dir;
1043
1044           if (index < 0)
1045             break;
1046           if (index >= n_children)
1047             break;
1048
1049           l = g_list_nth (children, (guint)index);
1050           item = GTK_MENU_ITEM (l->data);
1051           if (gtk_widget_get_visible (GTK_WIDGET(item)) &&
1052               gtk_widget_is_sensitive (GTK_WIDGET(item)))
1053             {
1054               gtk_cmoption_menu_set_history (option_menu, index);
1055               gtk_menu_item_activate (GTK_MENU_ITEM (item));
1056               break;
1057             }
1058
1059         }
1060
1061         g_list_free (children);
1062     }
1063
1064   return TRUE;
1065 }
1066