/* GTK - The GIMP Toolkit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include #include "gdk/gdkkeysyms.h" #include "gtkbindings.h" #include "gtklabel.h" #include "gtkmain.h" #include "gtkmenu.h" #include "gtkmenuitem.h" #include "gtksignal.h" #include "gtkwindow.h" #define MENU_ITEM_CLASS(w) GTK_MENU_ITEM_GET_CLASS (w) #define MENU_NEEDS_RESIZE(m) GTK_MENU_SHELL (m)->menu_flag typedef struct _GtkMenuAttachData GtkMenuAttachData; struct _GtkMenuAttachData { GtkWidget *attach_widget; GtkMenuDetachFunc detacher; }; static void gtk_menu_class_init (GtkMenuClass *klass); static void gtk_menu_init (GtkMenu *menu); static void gtk_menu_destroy (GtkObject *object); static void gtk_menu_realize (GtkWidget *widget); static void gtk_menu_size_request (GtkWidget *widget, GtkRequisition *requisition); static void gtk_menu_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static void gtk_menu_paint (GtkWidget *widget); static void gtk_menu_draw (GtkWidget *widget, GdkRectangle *area); static gint gtk_menu_expose (GtkWidget *widget, GdkEventExpose *event); static gint gtk_menu_key_press (GtkWidget *widget, GdkEventKey *event); static gint gtk_menu_motion_notify (GtkWidget *widget, GdkEventMotion *event); static void gtk_menu_deactivate (GtkMenuShell *menu_shell); static void gtk_menu_show_all (GtkWidget *widget); static void gtk_menu_hide_all (GtkWidget *widget); static void gtk_menu_position (GtkMenu *menu); static void gtk_menu_reparent (GtkMenu *menu, GtkWidget *new_parent, gboolean unrealize); static GtkMenuShellClass *parent_class = NULL; static const gchar *attach_data_key = "gtk-menu-attach-data"; static GQuark quark_uline_accel_group = 0; GtkType gtk_menu_get_type (void) { static GtkType menu_type = 0; if (!menu_type) { static const GtkTypeInfo menu_info = { "GtkMenu", sizeof (GtkMenu), sizeof (GtkMenuClass), (GtkClassInitFunc) gtk_menu_class_init, (GtkObjectInitFunc) gtk_menu_init, /* reserved_1 */ NULL, /* reserved_2 */ NULL, (GtkClassInitFunc) NULL, }; menu_type = gtk_type_unique (gtk_menu_shell_get_type (), &menu_info); } return menu_type; } static void gtk_menu_class_init (GtkMenuClass *class) { GtkObjectClass *object_class; GtkWidgetClass *widget_class; GtkContainerClass *container_class; GtkMenuShellClass *menu_shell_class; GtkBindingSet *binding_set; object_class = (GtkObjectClass*) class; widget_class = (GtkWidgetClass*) class; container_class = (GtkContainerClass*) class; menu_shell_class = (GtkMenuShellClass*) class; parent_class = gtk_type_class (gtk_menu_shell_get_type ()); object_class->destroy = gtk_menu_destroy; widget_class->realize = gtk_menu_realize; widget_class->draw = gtk_menu_draw; widget_class->size_request = gtk_menu_size_request; widget_class->size_allocate = gtk_menu_size_allocate; widget_class->expose_event = gtk_menu_expose; widget_class->key_press_event = gtk_menu_key_press; widget_class->motion_notify_event = gtk_menu_motion_notify; widget_class->show_all = gtk_menu_show_all; widget_class->hide_all = gtk_menu_hide_all; menu_shell_class->submenu_placement = GTK_LEFT_RIGHT; menu_shell_class->deactivate = gtk_menu_deactivate; binding_set = gtk_binding_set_by_class (class); gtk_binding_entry_add_signal (binding_set, GDK_Up, 0, "move_current", 1, GTK_TYPE_MENU_DIRECTION_TYPE, GTK_MENU_DIR_PREV); gtk_binding_entry_add_signal (binding_set, GDK_Down, 0, "move_current", 1, GTK_TYPE_MENU_DIRECTION_TYPE, GTK_MENU_DIR_NEXT); gtk_binding_entry_add_signal (binding_set, GDK_Left, 0, "move_current", 1, GTK_TYPE_MENU_DIRECTION_TYPE, GTK_MENU_DIR_PARENT); gtk_binding_entry_add_signal (binding_set, GDK_Right, 0, "move_current", 1, GTK_TYPE_MENU_DIRECTION_TYPE, GTK_MENU_DIR_CHILD); } static gint gtk_menu_window_event (GtkWidget *window, GdkEvent *event, GtkWidget *menu) { gboolean handled = FALSE; gtk_widget_ref (window); gtk_widget_ref (menu); switch (event->type) { case GDK_KEY_PRESS: case GDK_KEY_RELEASE: gtk_widget_event (menu, event); handled = TRUE; break; default: break; } gtk_widget_unref (window); gtk_widget_unref (menu); return handled; } static void gtk_menu_init (GtkMenu *menu) { menu->parent_menu_item = NULL; menu->old_active_menu_item = NULL; menu->accel_group = NULL; menu->position_func = NULL; menu->position_func_data = NULL; menu->toplevel = gtk_widget_new (GTK_TYPE_WINDOW, "type", GTK_WINDOW_POPUP, "signal::event", gtk_menu_window_event, menu, "signal::destroy", gtk_widget_destroyed, &menu->toplevel, "child", menu, NULL); gtk_window_set_policy (GTK_WINDOW (menu->toplevel), FALSE, FALSE, TRUE); /* Refloat the menu, so that reference counting for the menu isn't * affected by it being a child of the toplevel */ GTK_WIDGET_SET_FLAGS (menu, GTK_FLOATING); menu->needs_destruction_ref_count = TRUE; menu->tearoff_window = NULL; menu->torn_off = FALSE; MENU_NEEDS_RESIZE (menu) = TRUE; } static void gtk_menu_destroy (GtkObject *object) { GtkMenu *menu; GtkMenuAttachData *data; g_return_if_fail (GTK_IS_MENU (object)); menu = GTK_MENU (object); data = gtk_object_get_data (object, attach_data_key); if (data) gtk_menu_detach (menu); gtk_menu_set_accel_group (menu, NULL); if (menu->old_active_menu_item) { gtk_widget_unref (menu->old_active_menu_item); menu->old_active_menu_item = NULL; } /* Add back the reference count for being a child */ if (menu->needs_destruction_ref_count) { menu->needs_destruction_ref_count = FALSE; gtk_object_ref (object); } if (menu->toplevel) gtk_widget_destroy (menu->toplevel); if (menu->tearoff_window) gtk_widget_destroy (menu->tearoff_window); GTK_OBJECT_CLASS (parent_class)->destroy (object); } void gtk_menu_attach_to_widget (GtkMenu *menu, GtkWidget *attach_widget, GtkMenuDetachFunc detacher) { GtkMenuAttachData *data; g_return_if_fail (menu != NULL); g_return_if_fail (GTK_IS_MENU (menu)); g_return_if_fail (attach_widget != NULL); g_return_if_fail (GTK_IS_WIDGET (attach_widget)); g_return_if_fail (detacher != NULL); /* keep this function in sync with gtk_widget_set_parent() */ data = gtk_object_get_data (GTK_OBJECT (menu), attach_data_key); if (data) { g_warning ("gtk_menu_attach_to_widget(): menu already attached to %s", gtk_type_name (GTK_OBJECT_TYPE (data->attach_widget))); return; } gtk_object_ref (GTK_OBJECT (menu)); gtk_object_sink (GTK_OBJECT (menu)); data = g_new (GtkMenuAttachData, 1); data->attach_widget = attach_widget; data->detacher = detacher; gtk_object_set_data (GTK_OBJECT (menu), attach_data_key, data); if (GTK_WIDGET_STATE (menu) != GTK_STATE_NORMAL) gtk_widget_set_state (GTK_WIDGET (menu), GTK_STATE_NORMAL); /* we don't need to set the style here, since * we are a toplevel widget. */ } GtkWidget* gtk_menu_get_attach_widget (GtkMenu *menu) { GtkMenuAttachData *data; g_return_val_if_fail (menu != NULL, NULL); g_return_val_if_fail (GTK_IS_MENU (menu), NULL); data = gtk_object_get_data (GTK_OBJECT (menu), attach_data_key); if (data) return data->attach_widget; return NULL; } void gtk_menu_detach (GtkMenu *menu) { GtkMenuAttachData *data; g_return_if_fail (menu != NULL); g_return_if_fail (GTK_IS_MENU (menu)); /* keep this function in sync with gtk_widget_unparent() */ data = gtk_object_get_data (GTK_OBJECT (menu), attach_data_key); if (!data) { g_warning ("gtk_menu_detach(): menu is not attached"); return; } gtk_object_remove_data (GTK_OBJECT (menu), attach_data_key); data->detacher (data->attach_widget, menu); if (GTK_WIDGET_REALIZED (menu)) gtk_widget_unrealize (GTK_WIDGET (menu)); g_free (data); gtk_widget_unref (GTK_WIDGET (menu)); } GtkWidget* gtk_menu_new (void) { return GTK_WIDGET (gtk_type_new (gtk_menu_get_type ())); } void gtk_menu_append (GtkMenu *menu, GtkWidget *child) { gtk_menu_shell_append (GTK_MENU_SHELL (menu), child); } void gtk_menu_prepend (GtkMenu *menu, GtkWidget *child) { gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), child); } void gtk_menu_insert (GtkMenu *menu, GtkWidget *child, gint position) { gtk_menu_shell_insert (GTK_MENU_SHELL (menu), child, position); } static void gtk_menu_tearoff_bg_copy (GtkMenu *menu) { GtkWidget *widget; widget = GTK_WIDGET (menu); if (menu->torn_off) { GdkPixmap *pixmap; GdkGC *gc; GdkGCValues gc_values; gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS; gc = gdk_gc_new_with_values (widget->window, &gc_values, GDK_GC_SUBWINDOW); pixmap = gdk_pixmap_new (widget->window, widget->requisition.width, widget->requisition.height, -1); gdk_draw_pixmap (pixmap, gc, widget->window, 0, 0, 0, 0, -1, -1); gdk_gc_unref (gc); gtk_widget_set_usize (menu->tearoff_window, widget->requisition.width, widget->requisition.height); gdk_window_set_back_pixmap (menu->tearoff_window->window, pixmap, FALSE); gdk_pixmap_unref (pixmap); } } void gtk_menu_popup (GtkMenu *menu, GtkWidget *parent_menu_shell, GtkWidget *parent_menu_item, GtkMenuPositionFunc func, gpointer data, guint button, guint32 activate_time) { GtkWidget *widget; GtkWidget *xgrab_shell; GtkWidget *parent; GdkEvent *current_event; GtkMenuShell *menu_shell; g_return_if_fail (menu != NULL); g_return_if_fail (GTK_IS_MENU (menu)); widget = GTK_WIDGET (menu); menu_shell = GTK_MENU_SHELL (menu); menu_shell->parent_menu_shell = parent_menu_shell; menu_shell->active = TRUE; menu_shell->button = button; /* If we are popping up the menu from something other than, a button * press then, as a heuristic, we ignore enter events for the menu * until we get a MOTION_NOTIFY. */ current_event = gtk_get_current_event(); if (current_event) { if ((current_event->type != GDK_BUTTON_PRESS) && (current_event->type != GDK_ENTER_NOTIFY)) menu_shell->ignore_enter = TRUE; gdk_event_free (current_event); } if (menu->torn_off) { gtk_menu_tearoff_bg_copy (menu); /* We force an unrealize here so that we don't trigger redrawing/ * clearing code - we just want to reveal our backing pixmap. */ gtk_menu_reparent (menu, menu->toplevel, TRUE); } menu->parent_menu_item = parent_menu_item; menu->position_func = func; menu->position_func_data = data; menu_shell->activate_time = activate_time; gtk_menu_position (menu); /* We need to show the menu _here_ because code expects to be * able to tell if the menu is onscreen by looking at the * GTK_WIDGET_VISIBLE (menu) */ gtk_widget_show (GTK_WIDGET (menu)); gtk_widget_show (menu->toplevel); /* Find the last viewable ancestor, and make an X grab on it */ parent = GTK_WIDGET (menu); xgrab_shell = NULL; while (parent) { gboolean viewable = TRUE; GtkWidget *tmp = parent; while (tmp) { if (!GTK_WIDGET_MAPPED (tmp)) { viewable = FALSE; break; } tmp = tmp->parent; } if (viewable) xgrab_shell = parent; parent = GTK_MENU_SHELL (parent)->parent_menu_shell; } if (xgrab_shell && (!GTK_MENU_SHELL (xgrab_shell)->have_xgrab)) { GdkCursor *cursor = gdk_cursor_new (GDK_ARROW); if ((gdk_pointer_grab (xgrab_shell->window, TRUE, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK | GDK_POINTER_MOTION_MASK, NULL, cursor, activate_time) == 0)) { if (gdk_keyboard_grab (xgrab_shell->window, TRUE, activate_time) == 0) GTK_MENU_SHELL (xgrab_shell)->have_xgrab = TRUE; else { gdk_pointer_ungrab (activate_time); } } gdk_cursor_destroy (cursor); } gtk_grab_add (GTK_WIDGET (menu)); } void gtk_menu_popdown (GtkMenu *menu) { GtkMenuShell *menu_shell; g_return_if_fail (menu != NULL); g_return_if_fail (GTK_IS_MENU (menu)); menu_shell = GTK_MENU_SHELL (menu); menu_shell->parent_menu_shell = NULL; menu_shell->active = FALSE; menu_shell->ignore_enter = FALSE; if (menu_shell->active_menu_item) { if (menu->old_active_menu_item) gtk_widget_unref (menu->old_active_menu_item); menu->old_active_menu_item = menu_shell->active_menu_item; gtk_widget_ref (menu->old_active_menu_item); } gtk_menu_shell_deselect (menu_shell); /* The X Grab, if present, will automatically be removed when we hide * the window */ gtk_widget_hide (menu->toplevel); if (menu->torn_off) { if (GTK_BIN (menu->toplevel)->child) { gtk_menu_reparent (menu, menu->tearoff_window, FALSE); } else { /* We popped up the menu from the tearoff, so we need to * release the grab - we aren't actually hiding the menu. */ if (menu_shell->have_xgrab) { gdk_pointer_ungrab (GDK_CURRENT_TIME); gdk_keyboard_ungrab (GDK_CURRENT_TIME); } } } else gtk_widget_hide (GTK_WIDGET (menu)); menu_shell->have_xgrab = FALSE; gtk_grab_remove (GTK_WIDGET (menu)); } GtkWidget* gtk_menu_get_active (GtkMenu *menu) { GtkWidget *child; GList *children; g_return_val_if_fail (menu != NULL, NULL); g_return_val_if_fail (GTK_IS_MENU (menu), NULL); if (!menu->old_active_menu_item) { child = NULL; children = GTK_MENU_SHELL (menu)->children; while (children) { child = children->data; children = children->next; if (GTK_BIN (child)->child) break; child = NULL; } menu->old_active_menu_item = child; if (menu->old_active_menu_item) gtk_widget_ref (menu->old_active_menu_item); } return menu->old_active_menu_item; } void gtk_menu_set_active (GtkMenu *menu, guint index) { GtkWidget *child; GList *tmp_list; g_return_if_fail (menu != NULL); g_return_if_fail (GTK_IS_MENU (menu)); tmp_list = g_list_nth (GTK_MENU_SHELL (menu)->children, index); if (tmp_list) { child = tmp_list->data; if (GTK_BIN (child)->child) { if (menu->old_active_menu_item) gtk_widget_unref (menu->old_active_menu_item); menu->old_active_menu_item = child; gtk_widget_ref (menu->old_active_menu_item); } } } void gtk_menu_set_accel_group (GtkMenu *menu, GtkAccelGroup *accel_group) { g_return_if_fail (GTK_IS_MENU (menu)); if (menu->accel_group != accel_group) { if (menu->accel_group) gtk_accel_group_unref (menu->accel_group); menu->accel_group = accel_group; if (menu->accel_group) gtk_accel_group_ref (menu->accel_group); } } GtkAccelGroup* gtk_menu_get_accel_group (GtkMenu *menu) { g_return_val_if_fail (GTK_IS_MENU (menu), NULL); return menu->accel_group; } GtkAccelGroup* gtk_menu_ensure_uline_accel_group (GtkMenu *menu) { GtkAccelGroup *accel_group; g_return_val_if_fail (GTK_IS_MENU (menu), NULL); if (!quark_uline_accel_group) quark_uline_accel_group = g_quark_from_static_string ("GtkMenu-uline-accel-group"); accel_group = gtk_object_get_data_by_id (GTK_OBJECT (menu), quark_uline_accel_group); if (!accel_group) { accel_group = gtk_accel_group_new (); gtk_accel_group_attach (accel_group, GTK_OBJECT (menu)); gtk_object_set_data_by_id_full (GTK_OBJECT (menu), quark_uline_accel_group, accel_group, (GtkDestroyNotify) gtk_accel_group_unref); } return accel_group; } GtkAccelGroup* gtk_menu_get_uline_accel_group (GtkMenu *menu) { g_return_val_if_fail (GTK_IS_MENU (menu), NULL); return gtk_object_get_data_by_id (GTK_OBJECT (menu), quark_uline_accel_group); } void gtk_menu_reposition (GtkMenu *menu) { g_return_if_fail (menu != NULL); g_return_if_fail (GTK_IS_MENU (menu)); if (GTK_WIDGET_DRAWABLE (menu) && !menu->torn_off) gtk_menu_position (menu); } void gtk_menu_set_tearoff_state (GtkMenu *menu, gboolean torn_off) { g_return_if_fail (menu != NULL); g_return_if_fail (GTK_IS_MENU (menu)); if (menu->torn_off != torn_off) { menu->torn_off = torn_off; if (menu->torn_off) { if (GTK_WIDGET_VISIBLE (menu)) gtk_menu_popdown (menu); if (!menu->tearoff_window) { GtkWidget *attach_widget; gchar *title; menu->tearoff_window = gtk_widget_new (GTK_TYPE_WINDOW, "type", GTK_WINDOW_TOPLEVEL, "signal::destroy", gtk_widget_destroyed, &menu->tearoff_window, NULL); gtk_widget_set_app_paintable (menu->tearoff_window, TRUE); gtk_signal_connect (GTK_OBJECT (menu->tearoff_window), "event", GTK_SIGNAL_FUNC (gtk_menu_window_event), GTK_OBJECT (menu)); gtk_widget_realize (menu->tearoff_window); title = gtk_object_get_data (GTK_OBJECT (menu), "gtk-menu-title"); if (!title) { attach_widget = gtk_menu_get_attach_widget (menu); if (GTK_IS_MENU_ITEM (attach_widget)) { GtkWidget *child = GTK_BIN (attach_widget)->child; if (GTK_IS_LABEL (child)) gtk_label_get (GTK_LABEL (child), &title); } } if (title) gdk_window_set_title (menu->tearoff_window->window, title); gdk_window_set_decorations (menu->tearoff_window->window, GDK_DECOR_ALL | GDK_DECOR_RESIZEH | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE); gtk_window_set_policy (GTK_WINDOW (menu->tearoff_window), FALSE, FALSE, TRUE); } gtk_menu_reparent (menu, menu->tearoff_window, FALSE); gtk_menu_position (menu); gtk_widget_show (GTK_WIDGET (menu)); gtk_widget_show (menu->tearoff_window); } else { gtk_widget_hide (menu->tearoff_window); gtk_menu_reparent (menu, menu->toplevel, FALSE); } } } void gtk_menu_set_title (GtkMenu *menu, const gchar *title) { g_return_if_fail (menu != NULL); g_return_if_fail (GTK_IS_MENU (menu)); gtk_object_set_data_full (GTK_OBJECT (menu), "gtk-menu-title", g_strdup (title), (GtkDestroyNotify) g_free); } void gtk_menu_reorder_child (GtkMenu *menu, GtkWidget *child, gint position) { GtkMenuShell *menu_shell; g_return_if_fail (GTK_IS_MENU (menu)); g_return_if_fail (GTK_IS_MENU_ITEM (child)); menu_shell = GTK_MENU_SHELL (menu); if (g_list_find (menu_shell->children, child)) { menu_shell->children = g_list_remove (menu_shell->children, child); menu_shell->children = g_list_insert (menu_shell->children, child, position); if (GTK_WIDGET_VISIBLE (menu_shell)) gtk_widget_queue_resize (GTK_WIDGET (menu_shell)); } } static void gtk_menu_realize (GtkWidget *widget) { GdkWindowAttr attributes; gint attributes_mask; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_MENU (widget)); GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); attributes.window_type = GDK_WINDOW_CHILD; attributes.x = widget->allocation.x; attributes.y = widget->allocation.y; attributes.width = widget->allocation.width; attributes.height = widget->allocation.height; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); attributes.colormap = gtk_widget_get_colormap (widget); attributes.event_mask = gtk_widget_get_events (widget); attributes.event_mask |= (GDK_EXPOSURE_MASK | GDK_KEY_PRESS_MASK); attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gdk_window_set_user_data (widget->window, widget); widget->style = gtk_style_attach (widget->style, widget->window); gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); gtk_menu_paint(widget); } static void gtk_menu_size_request (GtkWidget *widget, GtkRequisition *requisition) { GtkMenu *menu; GtkMenuShell *menu_shell; GtkWidget *child; GList *children; guint max_toggle_size; guint max_accel_width; GtkRequisition child_requisition; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_MENU (widget)); g_return_if_fail (requisition != NULL); menu = GTK_MENU (widget); menu_shell = GTK_MENU_SHELL (widget); requisition->width = 0; requisition->height = 0; max_toggle_size = 0; max_accel_width = 0; children = menu_shell->children; while (children) { child = children->data; children = children->next; if (GTK_WIDGET_VISIBLE (child)) { GTK_MENU_ITEM (child)->show_submenu_indicator = TRUE; gtk_widget_size_request (child, &child_requisition); requisition->width = MAX (requisition->width, child_requisition.width); requisition->height += child_requisition.height; max_toggle_size = MAX (max_toggle_size, MENU_ITEM_CLASS (child)->toggle_size); max_accel_width = MAX (max_accel_width, GTK_MENU_ITEM (child)->accelerator_width); } } requisition->width += max_toggle_size + max_accel_width; requisition->width += (GTK_CONTAINER (menu)->border_width + widget->style->xthickness) * 2; requisition->height += (GTK_CONTAINER (menu)->border_width + widget->style->ythickness) * 2; children = menu_shell->children; while (children) { child = children->data; children = children->next; GTK_MENU_ITEM (child)->toggle_size = max_toggle_size; } } static void gtk_menu_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkMenu *menu; GtkMenuShell *menu_shell; GtkWidget *child; GtkAllocation child_allocation; GList *children; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_MENU (widget)); g_return_if_fail (allocation != NULL); menu = GTK_MENU (widget); menu_shell = GTK_MENU_SHELL (widget); widget->allocation = *allocation; if (GTK_WIDGET_REALIZED (widget)) gdk_window_move_resize (widget->window, allocation->x, allocation->y, allocation->width, allocation->height); if (menu_shell->children) { child_allocation.x = (GTK_CONTAINER (menu)->border_width + widget->style->xthickness); child_allocation.y = (GTK_CONTAINER (menu)->border_width + widget->style->ythickness); child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2); children = menu_shell->children; while (children) { child = children->data; children = children->next; if (GTK_WIDGET_VISIBLE (child)) { GtkRequisition child_requisition; gtk_widget_get_child_requisition (child, &child_requisition); child_allocation.height = child_requisition.height; gtk_widget_size_allocate (child, &child_allocation); gtk_widget_queue_draw (child); child_allocation.y += child_allocation.height; } } } } static void gtk_menu_paint (GtkWidget *widget) { g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_MENU (widget)); if (GTK_WIDGET_DRAWABLE (widget)) { gtk_paint_box (widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_OUT, NULL, widget, "menu", 0, 0, -1, -1); } } static void gtk_menu_draw (GtkWidget *widget, GdkRectangle *area) { GtkMenuShell *menu_shell; GtkWidget *child; GdkRectangle child_area; GList *children; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_MENU (widget)); g_return_if_fail (area != NULL); if (GTK_WIDGET_DRAWABLE (widget)) { gtk_menu_paint (widget); menu_shell = GTK_MENU_SHELL (widget); children = menu_shell->children; while (children) { child = children->data; children = children->next; if (gtk_widget_intersect (child, area, &child_area)) gtk_widget_draw (child, &child_area); } } } static gint gtk_menu_expose (GtkWidget *widget, GdkEventExpose *event) { GtkMenuShell *menu_shell; GtkWidget *child; GdkEventExpose child_event; GList *children; GtkMenu *menu; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_MENU (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); menu_shell = GTK_MENU_SHELL (widget); menu = GTK_MENU (widget); if (GTK_WIDGET_DRAWABLE (widget)) { gtk_menu_paint (widget); child_event = *event; children = menu_shell->children; while (children) { child = children->data; children = children->next; if (GTK_WIDGET_NO_WINDOW (child) && gtk_widget_intersect (child, &event->area, &child_event.area)) gtk_widget_event (child, (GdkEvent*) &child_event); } } return FALSE; } static gint gtk_menu_key_press (GtkWidget *widget, GdkEventKey *event) { GtkMenuShell *menu_shell; gboolean delete = FALSE; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_MENU (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); menu_shell = GTK_MENU_SHELL (widget); if (GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event)) return TRUE; switch (event->keyval) { case GDK_Delete: case GDK_KP_Delete: case GDK_BackSpace: delete = TRUE; break; default: break; } /* Modify the accelerators */ if (menu_shell->active_menu_item && GTK_BIN (menu_shell->active_menu_item)->child && GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu == NULL && !gtk_widget_accelerators_locked (menu_shell->active_menu_item) && (delete || (gtk_accelerator_valid (event->keyval, event->state) && (event->state || !gtk_menu_get_uline_accel_group (GTK_MENU (menu_shell)) || (event->keyval >= GDK_F1 && event->keyval <= GDK_F35))))) { GtkMenuItem *menu_item; GtkAccelGroup *accel_group; menu_item = GTK_MENU_ITEM (menu_shell->active_menu_item); if (!GTK_MENU (widget)->accel_group) accel_group = gtk_accel_group_get_default (); else accel_group = GTK_MENU (widget)->accel_group; gtk_widget_remove_accelerators (GTK_WIDGET (menu_item), gtk_signal_name (menu_item->accelerator_signal), TRUE); if (!delete && 0 == gtk_widget_accelerator_signal (GTK_WIDGET (menu_item), accel_group, event->keyval, event->state)) { GSList *slist; slist = gtk_accel_group_entries_from_object (GTK_OBJECT (menu_item)); while (slist) { GtkAccelEntry *ac_entry; ac_entry = slist->data; if (ac_entry->signal_id == menu_item->accelerator_signal) break; slist = slist->next; } if (!slist) gtk_widget_add_accelerator (GTK_WIDGET (menu_item), gtk_signal_name (menu_item->accelerator_signal), accel_group, event->keyval, event->state, GTK_ACCEL_VISIBLE); } } return TRUE; } static gint gtk_menu_motion_notify (GtkWidget *widget, GdkEventMotion *event) { g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_MENU (widget), FALSE); if (GTK_MENU_SHELL (widget)->ignore_enter) GTK_MENU_SHELL (widget)->ignore_enter = FALSE; else { gint width, height; gdk_window_get_size (event->window, &width, &height); if (event->x >= 0 && event->x < width && event->y >= 0 && event->y < height) { GdkEvent send_event; send_event.crossing.type = GDK_ENTER_NOTIFY; send_event.crossing.window = event->window; send_event.crossing.time = event->time; send_event.crossing.send_event = TRUE; gtk_widget_event (widget, &send_event); } } return FALSE; } static void gtk_menu_deactivate (GtkMenuShell *menu_shell) { GtkWidget *parent; g_return_if_fail (menu_shell != NULL); g_return_if_fail (GTK_IS_MENU (menu_shell)); parent = menu_shell->parent_menu_shell; menu_shell->activate_time = 0; gtk_menu_popdown (GTK_MENU (menu_shell)); if (parent) gtk_menu_shell_deactivate (GTK_MENU_SHELL (parent)); } static void gtk_menu_position (GtkMenu *menu) { GtkWidget *widget; GtkRequisition requisition; gint x, y; g_return_if_fail (menu != NULL); g_return_if_fail (GTK_IS_MENU (menu)); widget = GTK_WIDGET (menu); gdk_window_get_pointer (NULL, &x, &y, NULL); /* We need the requisition to figure out the right place to * popup the menu. In fact, we always need to ask here, since * if a size_request was queued while we weren't popped up, * the requisition won't have been recomputed yet. */ gtk_widget_size_request (widget, &requisition); if (menu->position_func) (* menu->position_func) (menu, &x, &y, menu->position_func_data); else { gint screen_width; gint screen_height; screen_width = gdk_screen_width (); screen_height = gdk_screen_height (); x = CLAMP (x - 2, 0, MAX (0, screen_width - requisition.width)); y = CLAMP (y - 2, 0, MAX (0, screen_height - requisition.height)); } /* FIXME: The MAX() here is because gtk_widget_set_uposition * is broken. Once we provide an alternate interface that * allows negative values, then we can remove them. */ gtk_widget_set_uposition (GTK_MENU_SHELL (menu)->active ? menu->toplevel : menu->tearoff_window, MAX (x, 0), MAX (y, 0)); } /* Reparent the menu, taking care of the refcounting */ static void gtk_menu_reparent (GtkMenu *menu, GtkWidget *new_parent, gboolean unrealize) { GtkObject *object = GTK_OBJECT (menu); GtkWidget *widget = GTK_WIDGET (menu); gboolean was_floating = GTK_OBJECT_FLOATING (object); gtk_object_ref (object); gtk_object_sink (object); if (unrealize) { gtk_object_ref (object); gtk_container_remove (GTK_CONTAINER (widget->parent), widget); gtk_container_add (GTK_CONTAINER (new_parent), widget); gtk_object_unref (object); } else gtk_widget_reparent (GTK_WIDGET (menu), new_parent); gtk_widget_set_usize (new_parent, -1, -1); if (was_floating) GTK_OBJECT_SET_FLAGS (object, GTK_FLOATING); else gtk_object_unref (object); } static void gtk_menu_show_all (GtkWidget *widget) { g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_MENU (widget)); /* Show children, but not self. */ gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL); } static void gtk_menu_hide_all (GtkWidget *widget) { g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_MENU (widget)); /* Hide children, but not self. */ gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL); }