/* 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 "gtknotebook.h" #include "gtkmain.h" #include "gtkmenu.h" #include "gtkmenuitem.h" #include "gtklabel.h" #include #include #include "gtkintl.h" #include "gtkmarshalers.h" #include "gtkbindings.h" #define TAB_OVERLAP 2 #define TAB_CURVATURE 1 #define ARROW_SIZE 12 #define ARROW_SPACING 0 #define NOTEBOOK_INIT_SCROLL_DELAY (200) #define NOTEBOOK_SCROLL_DELAY (100) enum { SWITCH_PAGE, FOCUS_TAB, SELECT_PAGE, CHANGE_CURRENT_PAGE, MOVE_FOCUS_OUT, LAST_SIGNAL }; enum { STEP_PREV, STEP_NEXT }; typedef enum { ARROW_NONE, ARROW_LEFT_BEFORE, ARROW_RIGHT_BEFORE, ARROW_LEFT_AFTER, ARROW_RIGHT_AFTER } GtkNotebookArrow; #define ARROW_IS_LEFT(arrow) ((arrow) == ARROW_LEFT_BEFORE || (arrow) == ARROW_LEFT_AFTER) #define ARROW_IS_BEFORE(arrow) ((arrow) == ARROW_LEFT_BEFORE || (arrow) == ARROW_RIGHT_BEFORE) enum { PROP_0, PROP_TAB_POS, PROP_SHOW_TABS, PROP_SHOW_BORDER, PROP_SCROLLABLE, PROP_TAB_BORDER, PROP_TAB_HBORDER, PROP_TAB_VBORDER, PROP_PAGE, PROP_ENABLE_POPUP, PROP_HOMOGENEOUS }; enum { CHILD_PROP_0, CHILD_PROP_TAB_LABEL, CHILD_PROP_MENU_LABEL, CHILD_PROP_POSITION, CHILD_PROP_TAB_EXPAND, CHILD_PROP_TAB_FILL, CHILD_PROP_TAB_PACK }; #define GTK_NOTEBOOK_PAGE(_glist_) ((GtkNotebookPage *)((GList *)(_glist_))->data) struct _GtkNotebookPage { GtkWidget *child; GtkWidget *tab_label; GtkWidget *menu_label; GtkWidget *last_focus_child; /* Last descendant of the page that had focus */ guint default_menu : 1; /* If true, we create the menu label ourself */ guint default_tab : 1; /* If true, we create the tab label ourself */ guint expand : 1; guint fill : 1; guint pack : 1; GtkRequisition requisition; GtkAllocation allocation; guint mnemonic_activate_signal; }; #ifdef G_DISABLE_CHECKS #define CHECK_FIND_CHILD(notebook, child) \ gtk_notebook_find_child (notebook, child, G_STRLOC) #else #define CHECK_FIND_CHILD(notebook, child) \ gtk_notebook_find_child (notebook, child, NULL) #endif /*** GtkNotebook Methods ***/ static void gtk_notebook_class_init (GtkNotebookClass *klass); static void gtk_notebook_init (GtkNotebook *notebook); static gboolean gtk_notebook_select_page (GtkNotebook *notebook, gboolean move_focus); static gboolean gtk_notebook_focus_tab (GtkNotebook *notebook, GtkNotebookTab type); static void gtk_notebook_change_current_page (GtkNotebook *notebook, gint offset); static void gtk_notebook_move_focus_out (GtkNotebook *notebook, GtkDirectionType direction_type); /*** GtkObject Methods ***/ static void gtk_notebook_destroy (GtkObject *object); static void gtk_notebook_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gtk_notebook_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); /*** GtkWidget Methods ***/ static void gtk_notebook_map (GtkWidget *widget); static void gtk_notebook_unmap (GtkWidget *widget); static void gtk_notebook_realize (GtkWidget *widget); static void gtk_notebook_unrealize (GtkWidget *widget); static void gtk_notebook_size_request (GtkWidget *widget, GtkRequisition *requisition); static void gtk_notebook_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static gint gtk_notebook_expose (GtkWidget *widget, GdkEventExpose *event); static gboolean gtk_notebook_scroll (GtkWidget *widget, GdkEventScroll *event); static gint gtk_notebook_button_press (GtkWidget *widget, GdkEventButton *event); static gint gtk_notebook_button_release (GtkWidget *widget, GdkEventButton *event); static gint gtk_notebook_enter_notify (GtkWidget *widget, GdkEventCrossing *event); static gint gtk_notebook_leave_notify (GtkWidget *widget, GdkEventCrossing *event); static gint gtk_notebook_motion_notify (GtkWidget *widget, GdkEventMotion *event); static gint gtk_notebook_focus_in (GtkWidget *widget, GdkEventFocus *event); static gint gtk_notebook_focus_out (GtkWidget *widget, GdkEventFocus *event); static void gtk_notebook_grab_notify (GtkWidget *widget, gboolean was_grabbed); static void gtk_notebook_state_changed (GtkWidget *widget, GtkStateType previous_state); static void gtk_notebook_draw_focus (GtkWidget *widget); static gint gtk_notebook_focus (GtkWidget *widget, GtkDirectionType direction); static void gtk_notebook_style_set (GtkWidget *widget, GtkStyle *previous); /*** GtkContainer Methods ***/ static void gtk_notebook_set_child_property (GtkContainer *container, GtkWidget *child, guint property_id, const GValue *value, GParamSpec *pspec); static void gtk_notebook_get_child_property (GtkContainer *container, GtkWidget *child, guint property_id, GValue *value, GParamSpec *pspec); static void gtk_notebook_add (GtkContainer *container, GtkWidget *widget); static void gtk_notebook_remove (GtkContainer *container, GtkWidget *widget); static void gtk_notebook_set_focus_child (GtkContainer *container, GtkWidget *child); static GType gtk_notebook_child_type (GtkContainer *container); static void gtk_notebook_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data); /*** GtkNotebook Private Functions ***/ static void gtk_notebook_redraw_tabs (GtkNotebook *notebook); static void gtk_notebook_redraw_arrows (GtkNotebook *notebook); static void gtk_notebook_real_remove (GtkNotebook *notebook, GList *list, gboolean destroying); static void gtk_notebook_update_labels (GtkNotebook *notebook); static gint gtk_notebook_timer (GtkNotebook *notebook); static gint gtk_notebook_page_compare (gconstpointer a, gconstpointer b); static GList* gtk_notebook_find_child (GtkNotebook *notebook, GtkWidget *child, const gchar *function); static gint gtk_notebook_real_page_position (GtkNotebook *notebook, GList *list); static GList * gtk_notebook_search_page (GtkNotebook *notebook, GList *list, gint direction, gboolean find_visible); /*** GtkNotebook Drawing Functions ***/ static void gtk_notebook_paint (GtkWidget *widget, GdkRectangle *area); static void gtk_notebook_draw_tab (GtkNotebook *notebook, GtkNotebookPage *page, GdkRectangle *area); static void gtk_notebook_draw_arrow (GtkNotebook *notebook, GtkNotebookArrow arrow); /*** GtkNotebook Size Allocate Functions ***/ static void gtk_notebook_pages_allocate (GtkNotebook *notebook); static void gtk_notebook_page_allocate (GtkNotebook *notebook, GtkNotebookPage *page, GtkAllocation *allocation); static void gtk_notebook_calc_tabs (GtkNotebook *notebook, GList *start, GList **end, gint *tab_space, guint direction); /*** GtkNotebook Page Switch Methods ***/ static void gtk_notebook_real_switch_page (GtkNotebook *notebook, GtkNotebookPage *page, guint page_num); /*** GtkNotebook Page Switch Functions ***/ static void gtk_notebook_switch_page (GtkNotebook *notebook, GtkNotebookPage *page, gint page_num); static gint gtk_notebook_page_select (GtkNotebook *notebook, gboolean move_focus); static void gtk_notebook_switch_focus_tab (GtkNotebook *notebook, GList *new_child); static void gtk_notebook_menu_switch_page (GtkWidget *widget, GtkNotebookPage *page); /*** GtkNotebook Menu Functions ***/ static void gtk_notebook_menu_item_create (GtkNotebook *notebook, GList *list); static void gtk_notebook_menu_label_unparent (GtkWidget *widget, gpointer data); static void gtk_notebook_menu_detacher (GtkWidget *widget, GtkMenu *menu); /*** GtkNotebook Private Setters ***/ static void gtk_notebook_set_homogeneous_tabs_internal (GtkNotebook *notebook, gboolean homogeneous); static void gtk_notebook_set_tab_border_internal (GtkNotebook *notebook, guint border_width); static void gtk_notebook_set_tab_hborder_internal (GtkNotebook *notebook, guint tab_hborder); static void gtk_notebook_set_tab_vborder_internal (GtkNotebook *notebook, guint tab_vborder); static gboolean focus_tabs_in (GtkNotebook *notebook); static gboolean focus_child_in (GtkNotebook *notebook, GtkDirectionType direction); static GtkContainerClass *parent_class = NULL; static guint notebook_signals[LAST_SIGNAL] = { 0 }; GType gtk_notebook_get_type (void) { static GType notebook_type = 0; if (!notebook_type) { static const GTypeInfo notebook_info = { sizeof (GtkNotebookClass), NULL, /* base_init */ NULL, /* base_finalize */ (GClassInitFunc) gtk_notebook_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GtkNotebook), 0, /* n_preallocs */ (GInstanceInitFunc) gtk_notebook_init, }; notebook_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkNotebook", ¬ebook_info, 0); } return notebook_type; } static void add_tab_bindings (GtkBindingSet *binding_set, GdkModifierType modifiers, GtkDirectionType direction) { gtk_binding_entry_add_signal (binding_set, GDK_Tab, modifiers, "move_focus_out", 1, GTK_TYPE_DIRECTION_TYPE, direction); gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, modifiers, "move_focus_out", 1, GTK_TYPE_DIRECTION_TYPE, direction); } static void add_arrow_bindings (GtkBindingSet *binding_set, guint keysym, GtkDirectionType direction) { guint keypad_keysym = keysym - GDK_Left + GDK_KP_Left; gtk_binding_entry_add_signal (binding_set, keysym, GDK_CONTROL_MASK, "move_focus_out", 1, GTK_TYPE_DIRECTION_TYPE, direction); gtk_binding_entry_add_signal (binding_set, keypad_keysym, GDK_CONTROL_MASK, "move_focus_out", 1, GTK_TYPE_DIRECTION_TYPE, direction); } static void gtk_notebook_class_init (GtkNotebookClass *class) { GObjectClass *gobject_class = G_OBJECT_CLASS (class); GtkObjectClass *object_class = GTK_OBJECT_CLASS (class); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class); GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class); GtkBindingSet *binding_set; parent_class = g_type_class_peek_parent (class); gobject_class->set_property = gtk_notebook_set_property; gobject_class->get_property = gtk_notebook_get_property; object_class->destroy = gtk_notebook_destroy; widget_class->map = gtk_notebook_map; widget_class->unmap = gtk_notebook_unmap; widget_class->realize = gtk_notebook_realize; widget_class->unrealize = gtk_notebook_unrealize; widget_class->size_request = gtk_notebook_size_request; widget_class->size_allocate = gtk_notebook_size_allocate; widget_class->expose_event = gtk_notebook_expose; widget_class->scroll_event = gtk_notebook_scroll; widget_class->button_press_event = gtk_notebook_button_press; widget_class->button_release_event = gtk_notebook_button_release; widget_class->enter_notify_event = gtk_notebook_enter_notify; widget_class->leave_notify_event = gtk_notebook_leave_notify; widget_class->motion_notify_event = gtk_notebook_motion_notify; widget_class->grab_notify = gtk_notebook_grab_notify; widget_class->state_changed = gtk_notebook_state_changed; widget_class->focus_in_event = gtk_notebook_focus_in; widget_class->focus_out_event = gtk_notebook_focus_out; widget_class->focus = gtk_notebook_focus; widget_class->style_set = gtk_notebook_style_set; container_class->add = gtk_notebook_add; container_class->remove = gtk_notebook_remove; container_class->forall = gtk_notebook_forall; container_class->set_focus_child = gtk_notebook_set_focus_child; container_class->get_child_property = gtk_notebook_get_child_property; container_class->set_child_property = gtk_notebook_set_child_property; container_class->child_type = gtk_notebook_child_type; class->switch_page = gtk_notebook_real_switch_page; class->focus_tab = gtk_notebook_focus_tab; class->select_page = gtk_notebook_select_page; class->change_current_page = gtk_notebook_change_current_page; class->move_focus_out = gtk_notebook_move_focus_out; g_object_class_install_property (gobject_class, PROP_PAGE, g_param_spec_int ("page", P_("Page"), P_("The index of the current page"), 0, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_TAB_POS, g_param_spec_enum ("tab_pos", P_("Tab Position"), P_("Which side of the notebook holds the tabs"), GTK_TYPE_POSITION_TYPE, GTK_POS_TOP, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_TAB_BORDER, g_param_spec_uint ("tab_border", P_("Tab Border"), P_("Width of the border around the tab labels"), 0, G_MAXUINT, 2, G_PARAM_WRITABLE)); g_object_class_install_property (gobject_class, PROP_TAB_HBORDER, g_param_spec_uint ("tab_hborder", P_("Horizontal Tab Border"), P_("Width of the horizontal border of tab labels"), 0, G_MAXUINT, 2, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_TAB_VBORDER, g_param_spec_uint ("tab_vborder", P_("Vertical Tab Border"), P_("Width of the vertical border of tab labels"), 0, G_MAXUINT, 2, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_SHOW_TABS, g_param_spec_boolean ("show_tabs", P_("Show Tabs"), P_("Whether tabs should be shown or not"), TRUE, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_SHOW_BORDER, g_param_spec_boolean ("show_border", P_("Show Border"), P_("Whether the border should be shown or not"), TRUE, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_SCROLLABLE, g_param_spec_boolean ("scrollable", P_("Scrollable"), P_("If TRUE, scroll arrows are added if there are too many tabs to fit"), FALSE, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_ENABLE_POPUP, g_param_spec_boolean ("enable_popup", P_("Enable Popup"), P_("If TRUE, pressing the right mouse button on the notebook pops up a menu that you can use to go to a page"), FALSE, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_HOMOGENEOUS, g_param_spec_boolean ("homogeneous", P_("Homogeneous"), P_("Whether tabs should have homogeneous sizes"), FALSE, G_PARAM_READWRITE)); gtk_container_class_install_child_property (container_class, CHILD_PROP_TAB_LABEL, g_param_spec_string ("tab_label", P_("Tab label"), P_("The string displayed on the childs tab label"), NULL, G_PARAM_READWRITE)); gtk_container_class_install_child_property (container_class, CHILD_PROP_MENU_LABEL, g_param_spec_string ("menu_label", P_("Menu label"), P_("The string displayed in the childs menu entry"), NULL, G_PARAM_READWRITE)); gtk_container_class_install_child_property (container_class, CHILD_PROP_POSITION, g_param_spec_int ("position", P_("Position"), P_("The index of the child in the parent"), -1, G_MAXINT, 0, G_PARAM_READWRITE)); gtk_container_class_install_child_property (container_class, CHILD_PROP_TAB_EXPAND, g_param_spec_boolean ("tab_expand", P_("Tab expand"), P_("Whether to expand the childs tab or not"), TRUE, G_PARAM_READWRITE)); gtk_container_class_install_child_property (container_class, CHILD_PROP_TAB_FILL, g_param_spec_boolean ("tab_fill", P_("Tab fill"), P_("Whether the childs tab should fill the allocated area or not"), TRUE, G_PARAM_READWRITE)); gtk_container_class_install_child_property (container_class, CHILD_PROP_TAB_PACK, g_param_spec_enum ("tab_pack", P_("Tab pack type"), P_("A GtkPackType indicating whether the child is packed with reference to the start or end of the parent"), GTK_TYPE_PACK_TYPE, GTK_PACK_START, G_PARAM_READWRITE)); /** * GtkNotebook:has-secondary-backward-stepper: * * The "has-secondary-backward-stepper" property determines whether * a second backward arrow button is displayed on the opposite end * of the tab area. * * Since: 2.4 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_boolean ("has_secondary backward_stepper", P_("Secondary backward stepper"), P_("Display a second backward arrow button on the opposite end of the tab area"), FALSE, G_PARAM_READABLE)); /** * GtkNotebook:has-secondary-forward-stepper: * * The "has-secondary-forward-stepper" property determines whether * a second forward arrow button is displayed on the opposite end * of the tab area. * * Since: 2.4 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_boolean ("has_secondary_forward_stepper", P_("Secondary forward stepper"), P_("Display a second forward arrow button on the opposite end of the tab area"), FALSE, G_PARAM_READABLE)); /** * GtkNotebook:has-backward-stepper: * * The "has-backward-stepper" property determines whether * the standard backward arrow button is displayed. * * Since: 2.4 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_boolean ("has_backward_stepper", P_("Backward stepper"), P_("Display the standard backward arrow button"), TRUE, G_PARAM_READABLE)); /** * GtkNotebook:has-forward-stepper: * * The "has-forward-stepper" property determines whether * the standard forward arrow button is displayed. * * Since: 2.4 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_boolean ("has_forward_stepper", P_("Forward stepper"), P_("Display the standard forward arrow button"), TRUE, G_PARAM_READABLE)); notebook_signals[SWITCH_PAGE] = g_signal_new ("switch_page", G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkNotebookClass, switch_page), NULL, NULL, _gtk_marshal_VOID__POINTER_UINT, G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_UINT); notebook_signals[FOCUS_TAB] = g_signal_new ("focus_tab", G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkNotebookClass, focus_tab), NULL, NULL, _gtk_marshal_BOOLEAN__ENUM, G_TYPE_BOOLEAN, 1, GTK_TYPE_NOTEBOOK_TAB); notebook_signals[SELECT_PAGE] = g_signal_new ("select_page", G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkNotebookClass, select_page), NULL, NULL, _gtk_marshal_BOOLEAN__BOOLEAN, G_TYPE_BOOLEAN, 1, G_TYPE_BOOLEAN); notebook_signals[CHANGE_CURRENT_PAGE] = g_signal_new ("change_current_page", G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkNotebookClass, change_current_page), NULL, NULL, _gtk_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT); notebook_signals[MOVE_FOCUS_OUT] = g_signal_new ("move_focus_out", G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkNotebookClass, move_focus_out), NULL, NULL, _gtk_marshal_VOID__ENUM, G_TYPE_NONE, 1, GTK_TYPE_DIRECTION_TYPE); binding_set = gtk_binding_set_by_class (class); gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "select_page", 1, G_TYPE_BOOLEAN, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, 0, "select_page", 1, G_TYPE_BOOLEAN, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_Home, 0, "focus_tab", 1, GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_FIRST); gtk_binding_entry_add_signal (binding_set, GDK_KP_Home, 0, "focus_tab", 1, GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_FIRST); gtk_binding_entry_add_signal (binding_set, GDK_End, 0, "focus_tab", 1, GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_LAST); gtk_binding_entry_add_signal (binding_set, GDK_KP_End, 0, "focus_tab", 1, GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_LAST); gtk_binding_entry_add_signal (binding_set, GDK_Page_Up, GDK_CONTROL_MASK, "change_current_page", 1, G_TYPE_INT, -1); gtk_binding_entry_add_signal (binding_set, GDK_Page_Down, GDK_CONTROL_MASK, "change_current_page", 1, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_Page_Up, GDK_CONTROL_MASK | GDK_MOD1_MASK, "change_current_page", 1, G_TYPE_INT, -1); gtk_binding_entry_add_signal (binding_set, GDK_Page_Down, GDK_CONTROL_MASK | GDK_MOD1_MASK, "change_current_page", 1, G_TYPE_INT, 1); add_arrow_bindings (binding_set, GDK_Up, GTK_DIR_UP); add_arrow_bindings (binding_set, GDK_Down, GTK_DIR_DOWN); add_arrow_bindings (binding_set, GDK_Left, GTK_DIR_LEFT); add_arrow_bindings (binding_set, GDK_Right, GTK_DIR_RIGHT); add_tab_bindings (binding_set, GDK_CONTROL_MASK, GTK_DIR_TAB_FORWARD); add_tab_bindings (binding_set, GDK_CONTROL_MASK | GDK_SHIFT_MASK, GTK_DIR_TAB_BACKWARD); } static void gtk_notebook_init (GtkNotebook *notebook) { GTK_WIDGET_SET_FLAGS (notebook, GTK_CAN_FOCUS); GTK_WIDGET_SET_FLAGS (notebook, GTK_NO_WINDOW); notebook->cur_page = NULL; notebook->children = NULL; notebook->first_tab = NULL; notebook->focus_tab = NULL; notebook->event_window = NULL; notebook->menu = NULL; notebook->tab_hborder = 2; notebook->tab_vborder = 2; notebook->show_tabs = TRUE; notebook->show_border = TRUE; notebook->tab_pos = GTK_POS_TOP; notebook->scrollable = FALSE; notebook->in_child = 0; notebook->click_child = 0; notebook->button = 0; notebook->need_timer = 0; notebook->child_has_focus = FALSE; notebook->have_visible_child = FALSE; notebook->focus_out = FALSE; notebook->has_before_previous = 1; notebook->has_before_next = 0; notebook->has_after_previous = 0; notebook->has_after_next = 1; } static gboolean gtk_notebook_select_page (GtkNotebook *notebook, gboolean move_focus) { if (gtk_widget_is_focus (GTK_WIDGET (notebook))) { gtk_notebook_page_select (notebook, move_focus); return TRUE; } else return FALSE; } static gboolean gtk_notebook_focus_tab (GtkNotebook *notebook, GtkNotebookTab type) { GList *list; if (gtk_widget_is_focus (GTK_WIDGET (notebook))) { switch (type) { case GTK_NOTEBOOK_TAB_FIRST: list = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE); if (list) gtk_notebook_switch_focus_tab (notebook, list); break; case GTK_NOTEBOOK_TAB_LAST: list = gtk_notebook_search_page (notebook, NULL, STEP_PREV, TRUE); if (list) gtk_notebook_switch_focus_tab (notebook, list); break; } return TRUE; } else return FALSE; } static void gtk_notebook_change_current_page (GtkNotebook *notebook, gint offset) { GList *current = NULL; if (notebook->cur_page) current = g_list_find (notebook->children, notebook->cur_page); while (offset != 0) { current = gtk_notebook_search_page (notebook, current, offset < 0 ? STEP_PREV : STEP_NEXT, TRUE); offset += offset < 0 ? 1 : -1; } if (current) gtk_notebook_switch_page (notebook, current->data, -1); else gdk_display_beep (gtk_widget_get_display (GTK_WIDGET (notebook))); } static GtkDirectionType get_effective_direction (GtkNotebook *notebook, GtkDirectionType direction) { /* Remap the directions into the effective direction it would be for a * GTK_POS_TOP notebook */ #define D(rest) GTK_DIR_##rest static const GtkDirectionType translate_direction[2][4][6] = { /* LEFT */ {{ D(TAB_FORWARD), D(TAB_BACKWARD), D(LEFT), D(RIGHT), D(UP), D(DOWN) }, /* RIGHT */ { D(TAB_BACKWARD), D(TAB_FORWARD), D(LEFT), D(RIGHT), D(DOWN), D(UP) }, /* TOP */ { D(TAB_FORWARD), D(TAB_BACKWARD), D(UP), D(DOWN), D(LEFT), D(RIGHT) }, /* BOTTOM */ { D(TAB_BACKWARD), D(TAB_FORWARD), D(DOWN), D(UP), D(LEFT), D(RIGHT) }}, /* LEFT */ {{ D(TAB_BACKWARD), D(TAB_FORWARD), D(LEFT), D(RIGHT), D(DOWN), D(UP) }, /* RIGHT */ { D(TAB_FORWARD), D(TAB_BACKWARD), D(LEFT), D(RIGHT), D(UP), D(DOWN) }, /* TOP */ { D(TAB_FORWARD), D(TAB_BACKWARD), D(UP), D(DOWN), D(RIGHT), D(LEFT) }, /* BOTTOM */ { D(TAB_BACKWARD), D(TAB_FORWARD), D(DOWN), D(UP), D(RIGHT), D(LEFT) }}, }; #undef D int text_dir = gtk_widget_get_direction (GTK_WIDGET (notebook)) == GTK_TEXT_DIR_RTL ? 1 : 0; return translate_direction[text_dir][notebook->tab_pos][direction]; } static gint get_effective_tab_pos (GtkNotebook *notebook) { if (gtk_widget_get_direction (GTK_WIDGET (notebook)) == GTK_TEXT_DIR_RTL) { switch (notebook->tab_pos) { case GTK_POS_LEFT: return GTK_POS_RIGHT; case GTK_POS_RIGHT: return GTK_POS_LEFT; default: ; } } return notebook->tab_pos; } static void gtk_notebook_move_focus_out (GtkNotebook *notebook, GtkDirectionType direction_type) { GtkDirectionType effective_direction = get_effective_direction (notebook, direction_type); GtkWidget *toplevel; if (GTK_CONTAINER (notebook)->focus_child && effective_direction == GTK_DIR_UP) if (focus_tabs_in (notebook)) return; if (gtk_widget_is_focus (GTK_WIDGET (notebook)) && effective_direction == GTK_DIR_DOWN) if (focus_child_in (notebook, GTK_DIR_TAB_FORWARD)) return; /* At this point, we know we should be focusing out of the notebook entirely. We * do this by setting a flag, then propagating the focus motion to the notebook. */ toplevel = gtk_widget_get_toplevel (GTK_WIDGET (notebook)); if (!GTK_WIDGET_TOPLEVEL (toplevel)) return; g_object_ref (notebook); notebook->focus_out = TRUE; g_signal_emit_by_name (toplevel, "move_focus", direction_type); notebook->focus_out = FALSE; g_object_unref (notebook); } /** * gtk_notebook_new: * * Creates a new #GtkNotebook widget with no pages. * Return value: the newly created #GtkNotebook **/ GtkWidget* gtk_notebook_new (void) { return g_object_new (GTK_TYPE_NOTEBOOK, NULL); } /* Private GtkObject Methods : * * gtk_notebook_destroy * gtk_notebook_set_arg * gtk_notebook_get_arg */ static void gtk_notebook_destroy (GtkObject *object) { GList *children; GtkNotebook *notebook = GTK_NOTEBOOK (object); if (notebook->menu) gtk_notebook_popup_disable (notebook); children = notebook->children; while (children) { GList *child = children; children = child->next; gtk_notebook_real_remove (notebook, child, TRUE); } GTK_OBJECT_CLASS (parent_class)->destroy (object); } static void gtk_notebook_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkNotebook *notebook; notebook = GTK_NOTEBOOK (object); switch (prop_id) { case PROP_SHOW_TABS: gtk_notebook_set_show_tabs (notebook, g_value_get_boolean (value)); break; case PROP_SHOW_BORDER: gtk_notebook_set_show_border (notebook, g_value_get_boolean (value)); break; case PROP_SCROLLABLE: gtk_notebook_set_scrollable (notebook, g_value_get_boolean (value)); break; case PROP_ENABLE_POPUP: if (g_value_get_boolean (value)) gtk_notebook_popup_enable (notebook); else gtk_notebook_popup_disable (notebook); break; case PROP_HOMOGENEOUS: gtk_notebook_set_homogeneous_tabs_internal (notebook, g_value_get_boolean (value)); break; case PROP_PAGE: gtk_notebook_set_current_page (notebook, g_value_get_int (value)); break; case PROP_TAB_POS: gtk_notebook_set_tab_pos (notebook, g_value_get_enum (value)); break; case PROP_TAB_BORDER: gtk_notebook_set_tab_border_internal (notebook, g_value_get_uint (value)); break; case PROP_TAB_HBORDER: gtk_notebook_set_tab_hborder_internal (notebook, g_value_get_uint (value)); break; case PROP_TAB_VBORDER: gtk_notebook_set_tab_vborder_internal (notebook, g_value_get_uint (value)); break; default: break; } } static void gtk_notebook_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkNotebook *notebook; notebook = GTK_NOTEBOOK (object); switch (prop_id) { case PROP_SHOW_TABS: g_value_set_boolean (value, notebook->show_tabs); break; case PROP_SHOW_BORDER: g_value_set_boolean (value, notebook->show_border); break; case PROP_SCROLLABLE: g_value_set_boolean (value, notebook->scrollable); break; case PROP_ENABLE_POPUP: g_value_set_boolean (value, notebook->menu != NULL); break; case PROP_HOMOGENEOUS: g_value_set_boolean (value, notebook->homogeneous); break; case PROP_PAGE: g_value_set_int (value, gtk_notebook_get_current_page (notebook)); break; case PROP_TAB_POS: g_value_set_enum (value, notebook->tab_pos); break; case PROP_TAB_HBORDER: g_value_set_uint (value, notebook->tab_hborder); break; case PROP_TAB_VBORDER: g_value_set_uint (value, notebook->tab_vborder); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } /* Private GtkWidget Methods : * * gtk_notebook_map * gtk_notebook_unmap * gtk_notebook_realize * gtk_notebook_size_request * gtk_notebook_size_allocate * gtk_notebook_expose * gtk_notebook_scroll * gtk_notebook_button_press * gtk_notebook_button_release * gtk_notebook_enter_notify * gtk_notebook_leave_notify * gtk_notebook_motion_notify * gtk_notebook_focus_in * gtk_notebook_focus_out * gtk_notebook_draw_focus * gtk_notebook_style_set */ static gboolean gtk_notebook_get_event_window_position (GtkNotebook *notebook, GdkRectangle *rectangle) { GtkWidget *widget = GTK_WIDGET (notebook); gint border_width = GTK_CONTAINER (notebook)->border_width; GtkNotebookPage *visible_page = NULL; GList *tmp_list; gint tab_pos = get_effective_tab_pos (notebook); for (tmp_list = notebook->children; tmp_list; tmp_list = tmp_list->next) { GtkNotebookPage *page = tmp_list->data; if (GTK_WIDGET_VISIBLE (page->child)) { visible_page = page; break; } } if (notebook->show_tabs && visible_page) { if (rectangle) { rectangle->x = widget->allocation.x + border_width; rectangle->y = widget->allocation.y + border_width; switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: rectangle->width = widget->allocation.width - 2 * border_width; rectangle->height = visible_page->requisition.height; if (tab_pos == GTK_POS_BOTTOM) rectangle->y += widget->allocation.height - 2 * border_width - rectangle->height; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: rectangle->width = visible_page->requisition.width; rectangle->height = widget->allocation.height - 2 * border_width; if (tab_pos == GTK_POS_RIGHT) rectangle->x += widget->allocation.width - 2 * border_width - rectangle->width; break; } } return TRUE; } else { if (rectangle) { rectangle->x = rectangle->y = 0; rectangle->width = rectangle->height = 10; } } return FALSE; } static void gtk_notebook_map (GtkWidget *widget) { GtkNotebook *notebook; GtkNotebookPage *page; GList *children; g_return_if_fail (GTK_IS_NOTEBOOK (widget)); GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED); notebook = GTK_NOTEBOOK (widget); if (notebook->cur_page && GTK_WIDGET_VISIBLE (notebook->cur_page->child) && !GTK_WIDGET_MAPPED (notebook->cur_page->child)) gtk_widget_map (notebook->cur_page->child); if (notebook->scrollable) gtk_notebook_pages_allocate (notebook); else { children = notebook->children; while (children) { page = children->data; children = children->next; if (page->tab_label && GTK_WIDGET_VISIBLE (page->tab_label) && !GTK_WIDGET_MAPPED (page->tab_label)) gtk_widget_map (page->tab_label); } } if (gtk_notebook_get_event_window_position (notebook, NULL)) gdk_window_show_unraised (notebook->event_window); } static void gtk_notebook_unmap (GtkWidget *widget) { g_return_if_fail (GTK_IS_NOTEBOOK (widget)); GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED); gdk_window_hide (GTK_NOTEBOOK (widget)->event_window); GTK_WIDGET_CLASS (parent_class)->unmap (widget); } static void gtk_notebook_realize (GtkWidget *widget) { GtkNotebook *notebook; GdkWindowAttr attributes; gint attributes_mask; GdkRectangle event_window_pos; g_return_if_fail (GTK_IS_NOTEBOOK (widget)); notebook = GTK_NOTEBOOK (widget); GTK_WIDGET_SET_FLAGS (notebook, GTK_REALIZED); gtk_notebook_get_event_window_position (notebook, &event_window_pos); widget->window = gtk_widget_get_parent_window (widget); g_object_ref (widget->window); attributes.window_type = GDK_WINDOW_CHILD; attributes.x = event_window_pos.x; attributes.y = event_window_pos.y; attributes.width = event_window_pos.width; attributes.height = event_window_pos.height; attributes.wclass = GDK_INPUT_ONLY; attributes.event_mask = gtk_widget_get_events (widget); attributes.event_mask |= (GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK | GDK_SCROLL_MASK); attributes_mask = GDK_WA_X | GDK_WA_Y; notebook->event_window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gdk_window_set_user_data (notebook->event_window, notebook); widget->style = gtk_style_attach (widget->style, widget->window); } static void gtk_notebook_unrealize (GtkWidget *widget) { GtkNotebook *notebook; g_return_if_fail (GTK_IS_NOTEBOOK (widget)); notebook = GTK_NOTEBOOK (widget); gdk_window_set_user_data (notebook->event_window, NULL); gdk_window_destroy (notebook->event_window); notebook->event_window = NULL; if (GTK_WIDGET_CLASS (parent_class)->unrealize) (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); } static void gtk_notebook_size_request (GtkWidget *widget, GtkRequisition *requisition) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPage *page; GList *children; GtkRequisition child_requisition; gboolean switch_page = FALSE; gint vis_pages; gint focus_width; gtk_widget_style_get (widget, "focus-line-width", &focus_width, NULL); widget->requisition.width = 0; widget->requisition.height = 0; for (children = notebook->children, vis_pages = 0; children; children = children->next) { page = children->data; if (GTK_WIDGET_VISIBLE (page->child)) { vis_pages++; gtk_widget_size_request (page->child, &child_requisition); widget->requisition.width = MAX (widget->requisition.width, child_requisition.width); widget->requisition.height = MAX (widget->requisition.height, child_requisition.height); if (notebook->menu && page->menu_label->parent && !GTK_WIDGET_VISIBLE (page->menu_label->parent)) gtk_widget_show (page->menu_label->parent); } else { if (page == notebook->cur_page) switch_page = TRUE; if (notebook->menu && page->menu_label->parent && GTK_WIDGET_VISIBLE (page->menu_label->parent)) gtk_widget_hide (page->menu_label->parent); } } if (notebook->show_border || notebook->show_tabs) { widget->requisition.width += widget->style->xthickness * 2; widget->requisition.height += widget->style->ythickness * 2; if (notebook->show_tabs) { gint tab_width = 0; gint tab_height = 0; gint tab_max = 0; gint padding; for (children = notebook->children; children; children = children->next) { page = children->data; if (GTK_WIDGET_VISIBLE (page->child)) { if (!GTK_WIDGET_VISIBLE (page->tab_label)) gtk_widget_show (page->tab_label); gtk_widget_size_request (page->tab_label, &child_requisition); page->requisition.width = child_requisition.width + 2 * widget->style->xthickness; page->requisition.height = child_requisition.height + 2 * widget->style->ythickness; switch (notebook->tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: page->requisition.height += 2 * (notebook->tab_vborder + focus_width); tab_height = MAX (tab_height, page->requisition.height); tab_max = MAX (tab_max, page->requisition.width); break; case GTK_POS_LEFT: case GTK_POS_RIGHT: page->requisition.width += 2 * (notebook->tab_hborder + focus_width); tab_width = MAX (tab_width, page->requisition.width); tab_max = MAX (tab_max, page->requisition.height); break; } } else if (GTK_WIDGET_VISIBLE (page->tab_label)) gtk_widget_hide (page->tab_label); } children = notebook->children; if (vis_pages) { switch (notebook->tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: if (tab_height == 0) break; if (notebook->scrollable && vis_pages > 1 && widget->requisition.width < tab_width) tab_height = MAX (tab_height, ARROW_SIZE); padding = 2 * (TAB_CURVATURE + focus_width + notebook->tab_hborder) - TAB_OVERLAP; tab_max += padding; while (children) { page = children->data; children = children->next; if (!GTK_WIDGET_VISIBLE (page->child)) continue; if (notebook->homogeneous) page->requisition.width = tab_max; else page->requisition.width += padding; tab_width += page->requisition.width; page->requisition.height = tab_height; } if (notebook->scrollable && vis_pages > 1 && widget->requisition.width < tab_width) tab_width = tab_max + 2 * (ARROW_SIZE + ARROW_SPACING); if (notebook->homogeneous && !notebook->scrollable) widget->requisition.width = MAX (widget->requisition.width, vis_pages * tab_max + TAB_OVERLAP); else widget->requisition.width = MAX (widget->requisition.width, tab_width + TAB_OVERLAP); widget->requisition.height += tab_height; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: if (tab_width == 0) break; if (notebook->scrollable && vis_pages > 1 && widget->requisition.height < tab_height) tab_width = MAX (tab_width, ARROW_SPACING + 2 * ARROW_SIZE); padding = 2 * (TAB_CURVATURE + focus_width + notebook->tab_vborder) - TAB_OVERLAP; tab_max += padding; while (children) { page = children->data; children = children->next; if (!GTK_WIDGET_VISIBLE (page->child)) continue; page->requisition.width = tab_width; if (notebook->homogeneous) page->requisition.height = tab_max; else page->requisition.height += padding; tab_height += page->requisition.height; } if (notebook->scrollable && vis_pages > 1 && widget->requisition.height < tab_height) tab_height = tab_max + ARROW_SIZE + ARROW_SPACING; widget->requisition.width += tab_width; if (notebook->homogeneous && !notebook->scrollable) widget->requisition.height = MAX (widget->requisition.height, vis_pages * tab_max + TAB_OVERLAP); else widget->requisition.height = MAX (widget->requisition.height, tab_height + TAB_OVERLAP); if (!notebook->homogeneous || notebook->scrollable) vis_pages = 1; widget->requisition.height = MAX (widget->requisition.height, vis_pages * tab_max + TAB_OVERLAP); break; } } } else { for (children = notebook->children; children; children = children->next) { page = children->data; if (page->tab_label && GTK_WIDGET_VISIBLE (page->tab_label)) gtk_widget_hide (page->tab_label); } } } widget->requisition.width += GTK_CONTAINER (widget)->border_width * 2; widget->requisition.height += GTK_CONTAINER (widget)->border_width * 2; if (switch_page) { if (vis_pages) { for (children = notebook->children; children; children = children->next) { page = children->data; if (GTK_WIDGET_VISIBLE (page->child)) { gtk_notebook_switch_page (notebook, page, -1); break; } } } else if (GTK_WIDGET_VISIBLE (widget)) { widget->requisition.width = GTK_CONTAINER (widget)->border_width * 2; widget->requisition.height= GTK_CONTAINER (widget)->border_width * 2; } } if (vis_pages && !notebook->cur_page) { children = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE); if (children) { notebook->first_tab = children; gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (children),-1); } } } static void gtk_notebook_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); gint vis_pages = 0; gint tab_pos = get_effective_tab_pos (notebook); widget->allocation = *allocation; if (GTK_WIDGET_REALIZED (widget)) { GdkRectangle position; if (gtk_notebook_get_event_window_position (notebook, &position)) { gdk_window_move_resize (notebook->event_window, position.x, position.y, position.width, position.height); if (GTK_WIDGET_MAPPED (notebook)) gdk_window_show_unraised (notebook->event_window); } else gdk_window_hide (notebook->event_window); } if (notebook->children) { gint border_width = GTK_CONTAINER (widget)->border_width; GtkNotebookPage *page; GtkAllocation child_allocation; GList *children; child_allocation.x = widget->allocation.x + border_width; child_allocation.y = widget->allocation.y + border_width; child_allocation.width = MAX (1, allocation->width - border_width * 2); child_allocation.height = MAX (1, allocation->height - border_width * 2); if (notebook->show_tabs || notebook->show_border) { child_allocation.x += widget->style->xthickness; child_allocation.y += widget->style->ythickness; child_allocation.width = MAX (1, child_allocation.width - widget->style->xthickness * 2); child_allocation.height = MAX (1, child_allocation.height - widget->style->ythickness * 2); if (notebook->show_tabs && notebook->children && notebook->cur_page) { switch (tab_pos) { case GTK_POS_TOP: child_allocation.y += notebook->cur_page->requisition.height; case GTK_POS_BOTTOM: child_allocation.height = MAX (1, child_allocation.height - notebook->cur_page->requisition.height); break; case GTK_POS_LEFT: child_allocation.x += notebook->cur_page->requisition.width; case GTK_POS_RIGHT: child_allocation.width = MAX (1, child_allocation.width - notebook->cur_page->requisition.width); break; } } } children = notebook->children; while (children) { page = children->data; children = children->next; if (GTK_WIDGET_VISIBLE (page->child)) { gtk_widget_size_allocate (page->child, &child_allocation); vis_pages++; } } gtk_notebook_pages_allocate (notebook); } if ((vis_pages != 0) != notebook->have_visible_child) { notebook->have_visible_child = (vis_pages != 0); if (notebook->show_tabs) gtk_widget_queue_draw (widget); } } static gint gtk_notebook_expose (GtkWidget *widget, GdkEventExpose *event) { GtkNotebook *notebook; GdkRectangle child_area; g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); if (GTK_WIDGET_DRAWABLE (widget)) { notebook = GTK_NOTEBOOK (widget); gtk_notebook_paint (widget, &event->area); if (notebook->show_tabs) { if (notebook->cur_page && gtk_widget_intersect (notebook->cur_page->tab_label, &event->area, &child_area)) gtk_notebook_draw_focus (widget); } if (notebook->cur_page) gtk_container_propagate_expose (GTK_CONTAINER (notebook), notebook->cur_page->child, event); } return FALSE; } static gboolean gtk_notebook_show_arrows (GtkNotebook *notebook) { gboolean show_arrow = FALSE; GList *children; if (!notebook->scrollable) return FALSE; children = notebook->children; while (children) { GtkNotebookPage *page = children->data; if (page->tab_label && !gtk_widget_get_child_visible (page->tab_label)) show_arrow = TRUE; children = children->next; } return show_arrow; } static void gtk_notebook_get_arrow_rect (GtkNotebook *notebook, GdkRectangle *rectangle, GtkNotebookArrow arrow) { GdkRectangle event_window_pos; gboolean before = ARROW_IS_BEFORE (arrow); gboolean left = ARROW_IS_LEFT (arrow); if (gtk_notebook_get_event_window_position (notebook, &event_window_pos)) { rectangle->width = ARROW_SIZE; rectangle->height = ARROW_SIZE; switch (notebook->tab_pos) { case GTK_POS_LEFT: case GTK_POS_RIGHT: if ((before && (notebook->has_before_previous != notebook->has_before_next)) || (!before && (notebook->has_after_previous != notebook->has_after_next))) rectangle->x = event_window_pos.x + (event_window_pos.width - rectangle->width) / 2; else if (left) rectangle->x = event_window_pos.x + event_window_pos.width / 2 - rectangle->width; else rectangle->x = event_window_pos.x + event_window_pos.width / 2; rectangle->y = event_window_pos.y; if (!before) rectangle->y += event_window_pos.height - rectangle->height; break; case GTK_POS_TOP: case GTK_POS_BOTTOM: if (before) { if (left || !notebook->has_before_previous) rectangle->x = event_window_pos.x; else rectangle->x = event_window_pos.x + rectangle->width; } else { if (!left || !notebook->has_after_next) rectangle->x = event_window_pos.x + event_window_pos.width - rectangle->width; else rectangle->x = event_window_pos.x + event_window_pos.width - 2 * rectangle->width; } rectangle->y = event_window_pos.y + (event_window_pos.height - rectangle->height) / 2; break; } } } static GtkNotebookArrow gtk_notebook_get_arrow (GtkNotebook *notebook, gint x, gint y) { GdkRectangle arrow_rect; GdkRectangle event_window_pos; gint i; gint x0, y0; GtkNotebookArrow arrow[4]; arrow[0] = notebook->has_before_previous ? ARROW_LEFT_BEFORE : ARROW_NONE; arrow[1] = notebook->has_before_next ? ARROW_RIGHT_BEFORE : ARROW_NONE; arrow[2] = notebook->has_after_previous ? ARROW_LEFT_AFTER : ARROW_NONE; arrow[3] = notebook->has_after_next ? ARROW_RIGHT_AFTER : ARROW_NONE; if (gtk_notebook_show_arrows (notebook)) { gtk_notebook_get_event_window_position (notebook, &event_window_pos); for (i = 0; i < 4; i++) { if (arrow[i] == ARROW_NONE) continue; gtk_notebook_get_arrow_rect (notebook, &arrow_rect, arrow[i]); x0 = x - arrow_rect.x; y0 = y - arrow_rect.y; if (y0 >= 0 && y0 < arrow_rect.height && x0 >= 0 && x0 < arrow_rect.width) return arrow[i]; } } return ARROW_NONE; } static void gtk_notebook_do_arrow (GtkNotebook *notebook, GtkNotebookArrow arrow) { GtkWidget *widget = GTK_WIDGET (notebook); GtkDirectionType dir; gboolean is_rtl, left; is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL; left = (ARROW_IS_LEFT (arrow) && !is_rtl) || (!ARROW_IS_LEFT (arrow) && is_rtl); if (!notebook->focus_tab || gtk_notebook_search_page (notebook, notebook->focus_tab, left ? STEP_PREV : STEP_NEXT, TRUE)) { if (notebook->tab_pos == GTK_POS_LEFT || notebook->tab_pos == GTK_POS_RIGHT) dir = ARROW_IS_LEFT (arrow) ? GTK_DIR_UP : GTK_DIR_DOWN; else dir = ARROW_IS_LEFT (arrow) ? GTK_DIR_LEFT : GTK_DIR_RIGHT; gtk_widget_child_focus (widget, dir); } } static gboolean gtk_notebook_arrow_button_press (GtkNotebook *notebook, GtkNotebookArrow arrow, GdkEventButton *event) { GtkWidget *widget = GTK_WIDGET (notebook); gboolean is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL; gboolean left = (ARROW_IS_LEFT (arrow) && !is_rtl) || (!ARROW_IS_LEFT (arrow) && is_rtl); if (!GTK_WIDGET_HAS_FOCUS (widget)) gtk_widget_grab_focus (widget); notebook->button = event->button; notebook->click_child = arrow; if (event->button == 1) { gtk_notebook_do_arrow (notebook, arrow); if (!notebook->timer) { notebook->timer = g_timeout_add (NOTEBOOK_INIT_SCROLL_DELAY, (GSourceFunc) gtk_notebook_timer, (gpointer) notebook); notebook->need_timer = TRUE; } } else if (event->button == 2) gtk_notebook_page_select (notebook, TRUE); else if (event->button == 3) gtk_notebook_switch_focus_tab (notebook, gtk_notebook_search_page (notebook, NULL, left ? STEP_NEXT : STEP_PREV, TRUE)); gtk_notebook_redraw_arrows (notebook); return TRUE; } static gboolean get_widget_coordinates (GtkWidget *widget, GdkEvent *event, gint *x, gint *y) { GdkWindow *window = ((GdkEventAny *)event)->window; gdouble tx, ty; if (!gdk_event_get_coords (event, &tx, &ty)) return FALSE; while (window && window != widget->window) { gint window_x, window_y; gdk_window_get_position (window, &window_x, &window_y); tx += window_x; ty += window_y; window = gdk_window_get_parent (window); } if (window) { *x = tx; *y = ty; return TRUE; } else return FALSE; } static gboolean gtk_notebook_scroll (GtkWidget *widget, GdkEventScroll *event) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); switch (event->direction) { case GDK_SCROLL_RIGHT: case GDK_SCROLL_DOWN: gtk_notebook_next_page (notebook); break; case GDK_SCROLL_LEFT: case GDK_SCROLL_UP: gtk_notebook_prev_page (notebook); break; } return TRUE; } static gboolean gtk_notebook_button_press (GtkWidget *widget, GdkEventButton *event) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPage *page; GList *children; GtkNotebookArrow arrow; gint num; gint x, y; if (event->type != GDK_BUTTON_PRESS || !notebook->children || notebook->button) return FALSE; if (!get_widget_coordinates (widget, (GdkEvent *)event, &x, &y)) return FALSE; arrow = gtk_notebook_get_arrow (notebook, x, y); if (arrow) return gtk_notebook_arrow_button_press (notebook, arrow, event); if (event->button == 3 && notebook->menu) { gtk_menu_popup (GTK_MENU (notebook->menu), NULL, NULL, NULL, NULL, 3, event->time); return TRUE; } if (event->button != 1) return FALSE; num = 0; children = notebook->children; while (children) { page = children->data; if (GTK_WIDGET_VISIBLE (page->child) && page->tab_label && GTK_WIDGET_MAPPED (page->tab_label) && (x >= page->allocation.x) && (y >= page->allocation.y) && (x <= (page->allocation.x + page->allocation.width)) && (y <= (page->allocation.y + page->allocation.height))) { gboolean page_changed = page != notebook->cur_page; gboolean was_focus = gtk_widget_is_focus (widget); gtk_notebook_switch_focus_tab (notebook, children); gtk_widget_grab_focus (widget); if (page_changed && !was_focus) gtk_widget_child_focus (page->child, GTK_DIR_TAB_FORWARD); break; } children = children->next; num++; } return TRUE; } static void stop_scrolling (GtkNotebook *notebook) { if (notebook->timer) { g_source_remove (notebook->timer); notebook->timer = 0; notebook->need_timer = FALSE; } notebook->click_child = 0; notebook->button = 0; gtk_notebook_redraw_arrows (notebook); } static gint gtk_notebook_button_release (GtkWidget *widget, GdkEventButton *event) { GtkNotebook *notebook; g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); if (event->type != GDK_BUTTON_RELEASE) return FALSE; notebook = GTK_NOTEBOOK (widget); if (event->button == notebook->button) { stop_scrolling (notebook); return TRUE; } else return FALSE; } static gint gtk_notebook_enter_notify (GtkWidget *widget, GdkEventCrossing *event) { GtkNotebook *notebook; GtkNotebookArrow arrow; gint x, y; g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); notebook = GTK_NOTEBOOK (widget); if (!get_widget_coordinates (widget, (GdkEvent *)event, &x, &y)) return FALSE; arrow = gtk_notebook_get_arrow (notebook, x, y); if (arrow != notebook->in_child) { notebook->in_child = arrow; gtk_notebook_redraw_arrows (notebook); return TRUE; } return TRUE; } static gint gtk_notebook_leave_notify (GtkWidget *widget, GdkEventCrossing *event) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookArrow arrow; gint x, y; if (!get_widget_coordinates (widget, (GdkEvent *)event, &x, &y)) return FALSE; arrow = gtk_notebook_get_arrow (notebook, x, y); if (notebook->in_child) { notebook->in_child = 0; gtk_notebook_redraw_arrows (notebook); } return TRUE; } static gint gtk_notebook_motion_notify (GtkWidget *widget, GdkEventMotion *event) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookArrow arrow; gint x, y; if (notebook->button) return FALSE; if (!get_widget_coordinates (widget, (GdkEvent *)event, &x, &y)) return FALSE; arrow = gtk_notebook_get_arrow (notebook, x, y); if (arrow != notebook->in_child) { notebook->in_child = arrow; gtk_notebook_redraw_arrows (notebook); } return TRUE; } static void gtk_notebook_grab_notify (GtkWidget *widget, gboolean was_grabbed) { if (!was_grabbed) stop_scrolling (GTK_NOTEBOOK (widget)); } static void gtk_notebook_state_changed (GtkWidget *widget, GtkStateType previous_state) { if (!GTK_WIDGET_IS_SENSITIVE (widget)) stop_scrolling (GTK_NOTEBOOK (widget)); } static gint gtk_notebook_focus_in (GtkWidget *widget, GdkEventFocus *event) { GTK_NOTEBOOK (widget)->child_has_focus = FALSE; gtk_notebook_redraw_tabs (GTK_NOTEBOOK (widget)); return FALSE; } static gint gtk_notebook_focus_out (GtkWidget *widget, GdkEventFocus *event) { gtk_notebook_redraw_tabs (GTK_NOTEBOOK (widget)); return FALSE; } static void gtk_notebook_draw_focus (GtkWidget *widget) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); if (GTK_WIDGET_DRAWABLE (widget) && notebook->show_tabs && notebook->focus_tab) { GtkNotebookPage *page; GdkRectangle area; gint focus_width; gtk_widget_style_get (widget, "focus-line-width", &focus_width, NULL); page = notebook->focus_tab->data; area.x = page->tab_label->allocation.x - focus_width; area.y = page->tab_label->allocation.y - focus_width; area.width = page->tab_label->allocation.width + 2 * focus_width; area.height = page->tab_label->allocation.height + 2 * focus_width; gtk_notebook_draw_tab (GTK_NOTEBOOK (widget), page, &area); } } static void gtk_notebook_style_set (GtkWidget *widget, GtkStyle *previous) { GtkNotebook *notebook; gboolean has_before_previous; gboolean has_before_next; gboolean has_after_previous; gboolean has_after_next; notebook = GTK_NOTEBOOK (widget); gtk_widget_style_get (widget, "has_backward_stepper", &has_before_previous, "has_secondary_forward_stepper", &has_before_next, "has_secondary_backward_stepper", &has_after_previous, "has_forward_stepper", &has_after_next, NULL); notebook->has_before_previous = has_before_previous; notebook->has_before_next = has_before_next; notebook->has_after_previous = has_after_previous; notebook->has_after_next = has_after_next; (* GTK_WIDGET_CLASS (parent_class)->style_set) (widget, previous); } /* Private GtkContainer Methods : * * gtk_notebook_set_child_arg * gtk_notebook_get_child_arg * gtk_notebook_add * gtk_notebook_remove * gtk_notebook_focus * gtk_notebook_set_focus_child * gtk_notebook_child_type * gtk_notebook_forall */ static void gtk_notebook_set_child_property (GtkContainer *container, GtkWidget *child, guint property_id, const GValue *value, GParamSpec *pspec) { gboolean expand; gboolean fill; GtkPackType pack_type; /* not finding child's page is valid for menus or labels */ if (!gtk_notebook_find_child (GTK_NOTEBOOK (container), child, NULL)) return; switch (property_id) { case CHILD_PROP_TAB_LABEL: /* a NULL pointer indicates a default_tab setting, otherwise * we need to set the associated label */ gtk_notebook_set_tab_label_text (GTK_NOTEBOOK (container), child, g_value_get_string (value)); break; case CHILD_PROP_MENU_LABEL: gtk_notebook_set_menu_label_text (GTK_NOTEBOOK (container), child, g_value_get_string (value)); break; case CHILD_PROP_POSITION: gtk_notebook_reorder_child (GTK_NOTEBOOK (container), child, g_value_get_int (value)); break; case CHILD_PROP_TAB_EXPAND: gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child, &expand, &fill, &pack_type); gtk_notebook_set_tab_label_packing (GTK_NOTEBOOK (container), child, g_value_get_boolean (value), fill, pack_type); break; case CHILD_PROP_TAB_FILL: gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child, &expand, &fill, &pack_type); gtk_notebook_set_tab_label_packing (GTK_NOTEBOOK (container), child, expand, g_value_get_boolean (value), pack_type); break; case CHILD_PROP_TAB_PACK: gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child, &expand, &fill, &pack_type); gtk_notebook_set_tab_label_packing (GTK_NOTEBOOK (container), child, expand, fill, g_value_get_enum (value)); break; default: GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec); break; } } static void gtk_notebook_get_child_property (GtkContainer *container, GtkWidget *child, guint property_id, GValue *value, GParamSpec *pspec) { GList *list; GtkNotebook *notebook; GtkWidget *label; gboolean expand; gboolean fill; GtkPackType pack_type; notebook = GTK_NOTEBOOK (container); /* not finding child's page is valid for menus or labels */ list = gtk_notebook_find_child (notebook, child, NULL); if (!list) { /* nothing to set on labels or menus */ g_param_value_set_default (pspec, value); return; } switch (property_id) { case CHILD_PROP_TAB_LABEL: label = gtk_notebook_get_tab_label (notebook, child); if (label && GTK_IS_LABEL (label)) g_value_set_string (value, GTK_LABEL (label)->label); else g_value_set_string (value, NULL); break; case CHILD_PROP_MENU_LABEL: label = gtk_notebook_get_menu_label (notebook, child); if (label && GTK_IS_LABEL (label)) g_value_set_string (value, GTK_LABEL (label)->label); else g_value_set_string (value, NULL); break; case CHILD_PROP_POSITION: g_value_set_int (value, g_list_position (notebook->children, list)); break; case CHILD_PROP_TAB_EXPAND: gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child, &expand, NULL, NULL); g_value_set_boolean (value, expand); break; case CHILD_PROP_TAB_FILL: gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child, NULL, &fill, NULL); g_value_set_boolean (value, fill); break; case CHILD_PROP_TAB_PACK: gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child, NULL, NULL, &pack_type); g_value_set_enum (value, pack_type); break; default: GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec); break; } } static void gtk_notebook_add (GtkContainer *container, GtkWidget *widget) { g_return_if_fail (GTK_IS_NOTEBOOK (container)); gtk_notebook_insert_page_menu (GTK_NOTEBOOK (container), widget, NULL, NULL, -1); } static void gtk_notebook_remove (GtkContainer *container, GtkWidget *widget) { GtkNotebook *notebook; GtkNotebookPage *page; GList *children; g_return_if_fail (GTK_IS_NOTEBOOK (container)); g_return_if_fail (widget != NULL); notebook = GTK_NOTEBOOK (container); children = notebook->children; while (children) { page = children->data; if (page->child == widget) { gtk_notebook_real_remove (notebook, children, FALSE); break; } children = children->next; } } static gboolean focus_tabs_in (GtkNotebook *notebook) { if (notebook->show_tabs && notebook->cur_page) { gtk_widget_grab_focus (GTK_WIDGET (notebook)); gtk_notebook_switch_focus_tab (notebook, g_list_find (notebook->children, notebook->cur_page)); return TRUE; } else return FALSE; } static gboolean focus_tabs_move (GtkNotebook *notebook, GtkDirectionType direction, gint search_direction) { GList *new_page; new_page = gtk_notebook_search_page (notebook, notebook->focus_tab, search_direction, TRUE); if (new_page) gtk_notebook_switch_focus_tab (notebook, new_page); else gdk_display_beep (gtk_widget_get_display (GTK_WIDGET (notebook))); return TRUE; } static gboolean focus_child_in (GtkNotebook *notebook, GtkDirectionType direction) { if (notebook->cur_page) return gtk_widget_child_focus (notebook->cur_page->child, direction); else return FALSE; } /* Focus in the notebook can either be on the pages, or on * the tabs. */ static gint gtk_notebook_focus (GtkWidget *widget, GtkDirectionType direction) { GtkWidget *old_focus_child; GtkNotebook *notebook; GtkDirectionType effective_direction; gboolean widget_is_focus; GtkContainer *container; g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE); container = GTK_CONTAINER (widget); notebook = GTK_NOTEBOOK (container); if (notebook->focus_out) { notebook->focus_out = FALSE; /* Clear this to catch the wrap-around case */ return FALSE; } widget_is_focus = gtk_widget_is_focus (widget); old_focus_child = container->focus_child; effective_direction = get_effective_direction (notebook, direction); if (old_focus_child) /* Focus on page child */ { if (gtk_widget_child_focus (old_focus_child, direction)) return TRUE; switch (effective_direction) { case GTK_DIR_TAB_BACKWARD: case GTK_DIR_UP: /* Focus onto the tabs */ return focus_tabs_in (notebook); case GTK_DIR_DOWN: case GTK_DIR_TAB_FORWARD: case GTK_DIR_LEFT: case GTK_DIR_RIGHT: return FALSE; } } else if (widget_is_focus) /* Focus was on tabs */ { switch (effective_direction) { case GTK_DIR_TAB_BACKWARD: case GTK_DIR_UP: return FALSE; case GTK_DIR_TAB_FORWARD: case GTK_DIR_DOWN: /* We use TAB_FORWARD rather than direction so that we focus a more * predictable widget for the user; users may be using arrow focusing * in this situation even if they don't usually use arrow focusing. */ return focus_child_in (notebook, GTK_DIR_TAB_FORWARD); case GTK_DIR_LEFT: return focus_tabs_move (notebook, direction, STEP_PREV); case GTK_DIR_RIGHT: return focus_tabs_move (notebook, direction, STEP_NEXT); } } else /* Focus was not on widget */ { switch (effective_direction) { case GTK_DIR_TAB_FORWARD: case GTK_DIR_DOWN: if (focus_tabs_in (notebook)) return TRUE; if (focus_child_in (notebook, direction)) return TRUE; return FALSE; case GTK_DIR_TAB_BACKWARD: case GTK_DIR_UP: if (focus_child_in (notebook, direction)) return TRUE; if (focus_tabs_in (notebook)) return TRUE; return FALSE; case GTK_DIR_LEFT: case GTK_DIR_RIGHT: return focus_child_in (notebook, direction); } } g_assert_not_reached (); return FALSE; } static void gtk_notebook_set_focus_child (GtkContainer *container, GtkWidget *child) { GtkNotebook *notebook = GTK_NOTEBOOK (container); GtkWidget *page_child; GtkWidget *toplevel; /* If the old focus widget was within a page of the notebook, * (child may either be NULL or not in this case), record it * for future use if we switch to the page with a mnemonic. */ toplevel = gtk_widget_get_toplevel (GTK_WIDGET (container)); if (toplevel && GTK_WIDGET_TOPLEVEL (toplevel)) { page_child = GTK_WINDOW (toplevel)->focus_widget; while (page_child) { if (page_child->parent == GTK_WIDGET (container)) { GList *list = gtk_notebook_find_child (notebook, page_child, NULL); if (list != NULL) { GtkNotebookPage *page = list->data; if (page->last_focus_child) g_object_remove_weak_pointer (G_OBJECT (page->last_focus_child), (gpointer *)&page->last_focus_child); page->last_focus_child = GTK_WINDOW (toplevel)->focus_widget; g_object_add_weak_pointer (G_OBJECT (page->last_focus_child), (gpointer *)&page->last_focus_child); break; } } page_child = page_child->parent; } } if (child) { g_return_if_fail (GTK_IS_WIDGET (child)); notebook->child_has_focus = TRUE; if (!notebook->focus_tab) { GList *children; GtkNotebookPage *page; children = notebook->children; while (children) { page = children->data; if (page->child == child || page->tab_label == child) gtk_notebook_switch_focus_tab (notebook, children); children = children->next; } } } parent_class->set_focus_child (container, child); } static void gtk_notebook_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data) { GtkNotebook *notebook; GList *children; g_return_if_fail (GTK_IS_NOTEBOOK (container)); g_return_if_fail (callback != NULL); notebook = GTK_NOTEBOOK (container); children = notebook->children; while (children) { GtkNotebookPage *page; page = children->data; children = children->next; (* callback) (page->child, callback_data); if (include_internals) { if (page->tab_label) (* callback) (page->tab_label, callback_data); } } } static GType gtk_notebook_child_type (GtkContainer *container) { return GTK_TYPE_WIDGET; } /* Private GtkNotebook Functions: * * gtk_notebook_redraw_tabs * gtk_notebook_real_remove * gtk_notebook_update_labels * gtk_notebook_timer * gtk_notebook_page_compare * gtk_notebook_real_page_position * gtk_notebook_search_page */ static void gtk_notebook_redraw_tabs (GtkNotebook *notebook) { GtkWidget *widget; GtkNotebookPage *page; GdkRectangle redraw_rect; gint border; gint tab_pos = get_effective_tab_pos (notebook); widget = GTK_WIDGET (notebook); border = GTK_CONTAINER (notebook)->border_width; if (!GTK_WIDGET_MAPPED (notebook) || !notebook->first_tab) return; page = notebook->first_tab->data; redraw_rect.x = border; redraw_rect.y = border; switch (tab_pos) { case GTK_POS_BOTTOM: redraw_rect.y = (widget->allocation.height - border - page->allocation.height - widget->style->ythickness); if (page != notebook->cur_page) redraw_rect.y -= widget->style->ythickness; /* fall through */ case GTK_POS_TOP: redraw_rect.width = widget->allocation.width - 2 * border; redraw_rect.height = (page->allocation.height + widget->style->ythickness); if (page != notebook->cur_page) redraw_rect.height += widget->style->ythickness; break; case GTK_POS_RIGHT: redraw_rect.x = (widget->allocation.width - border - page->allocation.width - widget->style->xthickness); if (page != notebook->cur_page) redraw_rect.x -= widget->style->xthickness; /* fall through */ case GTK_POS_LEFT: redraw_rect.width = (page->allocation.width + widget->style->xthickness); redraw_rect.height = widget->allocation.height - 2 * border; if (page != notebook->cur_page) redraw_rect.width += widget->style->xthickness; break; } redraw_rect.x += widget->allocation.x; redraw_rect.y += widget->allocation.y; gdk_window_invalidate_rect (widget->window, &redraw_rect, TRUE); } static void gtk_notebook_redraw_arrows (GtkNotebook *notebook) { if (GTK_WIDGET_MAPPED (notebook) && gtk_notebook_show_arrows (notebook)) { GdkRectangle rect; gint i; GtkNotebookArrow arrow[4]; arrow[0] = notebook->has_before_previous ? ARROW_LEFT_BEFORE : ARROW_NONE; arrow[1] = notebook->has_before_next ? ARROW_RIGHT_BEFORE : ARROW_NONE; arrow[2] = notebook->has_after_previous ? ARROW_LEFT_AFTER : ARROW_NONE; arrow[3] = notebook->has_after_next ? ARROW_RIGHT_AFTER : ARROW_NONE; for (i = 0; i < 4; i++) { if (arrow[i] == ARROW_NONE) continue; gtk_notebook_get_arrow_rect (notebook, &rect, arrow[i]); gdk_window_invalidate_rect (GTK_WIDGET (notebook)->window, &rect, FALSE); } } } static gint gtk_notebook_timer (GtkNotebook *notebook) { gboolean retval = FALSE; GDK_THREADS_ENTER (); if (notebook->timer) { gtk_notebook_do_arrow (notebook, notebook->click_child); if (notebook->need_timer) { notebook->need_timer = FALSE; notebook->timer = g_timeout_add (NOTEBOOK_SCROLL_DELAY, (GSourceFunc) gtk_notebook_timer, (gpointer) notebook); } else retval = TRUE; } GDK_THREADS_LEAVE (); return retval; } static gint gtk_notebook_page_compare (gconstpointer a, gconstpointer b) { return (((GtkNotebookPage *) a)->child != b); } static GList* gtk_notebook_find_child (GtkNotebook *notebook, GtkWidget *child, const gchar *function) { GList *list = g_list_find_custom (notebook->children, child, gtk_notebook_page_compare); #ifndef G_DISABLE_CHECKS if (!list && function) g_warning ("%s: unable to find child %p in notebook %p", function, child, notebook); #endif return list; } static void gtk_notebook_remove_tab_label (GtkNotebook *notebook, GtkNotebookPage *page) { if (page->tab_label) { if (page->mnemonic_activate_signal) g_signal_handler_disconnect (page->tab_label, page->mnemonic_activate_signal); page->mnemonic_activate_signal = 0; gtk_widget_set_state (page->tab_label, GTK_STATE_NORMAL); gtk_widget_unparent (page->tab_label); } } static void gtk_notebook_real_remove (GtkNotebook *notebook, GList *list, gboolean destroying) { GtkNotebookPage *page; GList * next_list; gint need_resize = FALSE; next_list = gtk_notebook_search_page (notebook, list, STEP_PREV, TRUE); if (!next_list) next_list = gtk_notebook_search_page (notebook, list, STEP_NEXT, TRUE); if (notebook->cur_page == list->data) { notebook->cur_page = NULL; if (next_list && !destroying) gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (next_list), -1); } if (list == notebook->first_tab) notebook->first_tab = next_list; if (list == notebook->focus_tab && !destroying) gtk_notebook_switch_focus_tab (notebook, next_list); page = list->data; if (GTK_WIDGET_VISIBLE (page->child) && GTK_WIDGET_VISIBLE (notebook)) need_resize = TRUE; gtk_widget_unparent (page->child); gtk_notebook_remove_tab_label (notebook, page); if (notebook->menu) { gtk_container_remove (GTK_CONTAINER (notebook->menu), page->menu_label->parent); gtk_widget_queue_resize (notebook->menu); } if (!page->default_menu) g_object_unref (page->menu_label); notebook->children = g_list_remove_link (notebook->children, list); g_list_free (list); if (page->last_focus_child) { g_object_remove_weak_pointer (G_OBJECT (page->last_focus_child), (gpointer *)&page->last_focus_child); page->last_focus_child = NULL; } g_free (page); gtk_notebook_update_labels (notebook); if (need_resize) gtk_widget_queue_resize (GTK_WIDGET (notebook)); } static void gtk_notebook_update_labels (GtkNotebook *notebook) { GtkNotebookPage *page; GList *list; gchar string[32]; gint page_num = 1; for (list = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, FALSE); list; list = gtk_notebook_search_page (notebook, list, STEP_NEXT, FALSE)) { page = list->data; g_snprintf (string, sizeof(string), _("Page %u"), page_num++); if (notebook->show_tabs) { if (page->default_tab) { if (!page->tab_label) { page->tab_label = gtk_label_new (string); gtk_widget_set_parent (page->tab_label, GTK_WIDGET (notebook)); } else gtk_label_set_text (GTK_LABEL (page->tab_label), string); } if (GTK_WIDGET_VISIBLE (page->child) && !GTK_WIDGET_VISIBLE (page->tab_label)) gtk_widget_show (page->tab_label); else if (!GTK_WIDGET_VISIBLE (page->child) && GTK_WIDGET_VISIBLE (page->tab_label)) gtk_widget_hide (page->tab_label); } if (notebook->menu && page->default_menu) { if (page->tab_label && GTK_IS_LABEL (page->tab_label)) gtk_label_set_text (GTK_LABEL (page->menu_label), GTK_LABEL (page->tab_label)->label); else gtk_label_set_text (GTK_LABEL (page->menu_label), string); } } } static gint gtk_notebook_real_page_position (GtkNotebook *notebook, GList *list) { GList *work; gint count_start; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1); g_return_val_if_fail (list != NULL, -1); for (work = notebook->children, count_start = 0; work && work != list; work = work->next) if (GTK_NOTEBOOK_PAGE (work)->pack == GTK_PACK_START) count_start++; if (!work) return -1; if (GTK_NOTEBOOK_PAGE (list)->pack == GTK_PACK_START) return count_start; return (count_start + g_list_length (list) - 1); } static GList * gtk_notebook_search_page (GtkNotebook *notebook, GList *list, gint direction, gboolean find_visible) { GtkNotebookPage *page = NULL; GList *old_list = NULL; gint flag = 0; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL); switch (direction) { case STEP_PREV: flag = GTK_PACK_END; break; case STEP_NEXT: flag = GTK_PACK_START; break; } if (list) page = list->data; if (!page || page->pack == flag) { if (list) { old_list = list; list = list->next; } else list = notebook->children; while (list) { page = list->data; if (page->pack == flag && (!find_visible || GTK_WIDGET_VISIBLE (page->child))) return list; old_list = list; list = list->next; } list = old_list; } else { old_list = list; list = list->prev; } while (list) { page = list->data; if (page->pack != flag && (!find_visible || GTK_WIDGET_VISIBLE (page->child))) return list; old_list = list; list = list->prev; } return NULL; } /* Private GtkNotebook Drawing Functions: * * gtk_notebook_paint * gtk_notebook_draw_tab * gtk_notebook_draw_arrow */ static void gtk_notebook_paint (GtkWidget *widget, GdkRectangle *area) { GtkNotebook *notebook; GtkNotebookPage *page; GList *children; gboolean showarrow; gint width, height; gint x, y; gint border_width = GTK_CONTAINER (widget)->border_width; gint gap_x = 0, gap_width = 0, step = STEP_PREV; gboolean is_rtl; gint tab_pos; g_return_if_fail (GTK_IS_NOTEBOOK (widget)); g_return_if_fail (area != NULL); if (!GTK_WIDGET_DRAWABLE (widget)) return; notebook = GTK_NOTEBOOK (widget); is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL; tab_pos = get_effective_tab_pos (notebook); if ((!notebook->show_tabs && !notebook->show_border) || !notebook->cur_page || !GTK_WIDGET_VISIBLE (notebook->cur_page->child)) return; x = widget->allocation.x + border_width; y = widget->allocation.y + border_width; width = widget->allocation.width - border_width * 2; height = widget->allocation.height - border_width * 2; if (notebook->show_border && (!notebook->show_tabs || !notebook->children)) { gtk_paint_box (widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_OUT, area, widget, "notebook", x, y, width, height); return; } if (!GTK_WIDGET_MAPPED (notebook->cur_page->tab_label)) { page = notebook->first_tab->data; switch (tab_pos) { case GTK_POS_TOP: y += page->allocation.height + widget->style->ythickness; case GTK_POS_BOTTOM: height -= page->allocation.height + widget->style->ythickness; break; case GTK_POS_LEFT: x += page->allocation.width + widget->style->xthickness; case GTK_POS_RIGHT: width -= page->allocation.width + widget->style->xthickness; break; } gtk_paint_box (widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_OUT, area, widget, "notebook", x, y, width, height); } else { switch (tab_pos) { case GTK_POS_TOP: y += notebook->cur_page->allocation.height; case GTK_POS_BOTTOM: height -= notebook->cur_page->allocation.height; break; case GTK_POS_LEFT: x += notebook->cur_page->allocation.width; case GTK_POS_RIGHT: width -= notebook->cur_page->allocation.width; break; } switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: gap_x = (notebook->cur_page->allocation.x - widget->allocation.x - border_width); gap_width = notebook->cur_page->allocation.width; step = is_rtl ? STEP_NEXT : STEP_PREV; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: gap_x = (notebook->cur_page->allocation.y - widget->allocation.y - border_width); gap_width = notebook->cur_page->allocation.height; step = STEP_PREV; break; } gtk_paint_box_gap (widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_OUT, area, widget, "notebook", x, y, width, height, tab_pos, gap_x, gap_width); } showarrow = FALSE; children = gtk_notebook_search_page (notebook, NULL, step, TRUE); while (children) { page = children->data; children = gtk_notebook_search_page (notebook, children, step, TRUE); if (!GTK_WIDGET_VISIBLE (page->child)) continue; if (!GTK_WIDGET_MAPPED (page->tab_label)) showarrow = TRUE; else if (page != notebook->cur_page) gtk_notebook_draw_tab (notebook, page, area); } if (showarrow && notebook->scrollable) { if (notebook->has_before_previous) gtk_notebook_draw_arrow (notebook, ARROW_LEFT_BEFORE); if (notebook->has_before_next) gtk_notebook_draw_arrow (notebook, ARROW_RIGHT_BEFORE); if (notebook->has_after_previous) gtk_notebook_draw_arrow (notebook, ARROW_LEFT_AFTER); if (notebook->has_after_next) gtk_notebook_draw_arrow (notebook, ARROW_RIGHT_AFTER); } gtk_notebook_draw_tab (notebook, notebook->cur_page, area); } static void gtk_notebook_draw_tab (GtkNotebook *notebook, GtkNotebookPage *page, GdkRectangle *area) { GdkRectangle child_area; GdkRectangle page_area; GtkStateType state_type; GtkPositionType gap_side; gint tab_pos = get_effective_tab_pos (notebook); g_return_if_fail (notebook != NULL); g_return_if_fail (page != NULL); g_return_if_fail (area != NULL); if (!GTK_WIDGET_MAPPED (page->tab_label) || (page->allocation.width == 0) || (page->allocation.height == 0)) return; page_area.x = page->allocation.x; page_area.y = page->allocation.y; page_area.width = page->allocation.width; page_area.height = page->allocation.height; if (gdk_rectangle_intersect (&page_area, area, &child_area)) { GtkWidget *widget; widget = GTK_WIDGET (notebook); gap_side = 0; switch (tab_pos) { case GTK_POS_TOP: gap_side = GTK_POS_BOTTOM; break; case GTK_POS_BOTTOM: gap_side = GTK_POS_TOP; break; case GTK_POS_LEFT: gap_side = GTK_POS_RIGHT; break; case GTK_POS_RIGHT: gap_side = GTK_POS_LEFT; break; } if (notebook->cur_page == page) state_type = GTK_STATE_NORMAL; else state_type = GTK_STATE_ACTIVE; gtk_paint_extension(widget->style, widget->window, state_type, GTK_SHADOW_OUT, area, widget, "tab", page_area.x, page_area.y, page_area.width, page_area.height, gap_side); if ((GTK_WIDGET_HAS_FOCUS (widget)) && notebook->focus_tab && (notebook->focus_tab->data == page)) { gint focus_width; gtk_widget_style_get (widget, "focus-line-width", &focus_width, NULL); gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget), area, widget, "tab", page->tab_label->allocation.x - focus_width, page->tab_label->allocation.y - focus_width, page->tab_label->allocation.width + 2 * focus_width, page->tab_label->allocation.height + 2 * focus_width); } if (gtk_widget_intersect (page->tab_label, area, &child_area) && GTK_WIDGET_DRAWABLE (page->tab_label)) { GdkEvent *expose_event = gdk_event_new (GDK_EXPOSE); /* This is a lame hack since all this code needs rewriting anyhow */ expose_event->expose.window = g_object_ref (page->tab_label->window); expose_event->expose.area = child_area; expose_event->expose.region = gdk_region_rectangle (&child_area); expose_event->expose.send_event = TRUE; expose_event->expose.count = 0; gtk_container_propagate_expose (GTK_CONTAINER (notebook), page->tab_label, (GdkEventExpose *)expose_event); gdk_event_free (expose_event); } } } static void gtk_notebook_draw_arrow (GtkNotebook *notebook, GtkNotebookArrow nbarrow) { GtkStateType state_type; GtkShadowType shadow_type; GtkWidget *widget; GdkRectangle arrow_rect; GtkArrowType arrow; gboolean is_rtl, left; gtk_notebook_get_arrow_rect (notebook, &arrow_rect, nbarrow); widget = GTK_WIDGET (notebook); is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL; left = (ARROW_IS_LEFT (nbarrow) && !is_rtl) || (!ARROW_IS_LEFT (nbarrow) && is_rtl); if (GTK_WIDGET_DRAWABLE (notebook)) { if (notebook->in_child == nbarrow) { if (notebook->click_child == nbarrow) state_type = GTK_STATE_ACTIVE; else state_type = GTK_STATE_PRELIGHT; } else state_type = GTK_WIDGET_STATE (widget); if (notebook->click_child == nbarrow) shadow_type = GTK_SHADOW_IN; else shadow_type = GTK_SHADOW_OUT; if (notebook->focus_tab && !gtk_notebook_search_page (notebook, notebook->focus_tab, left? STEP_PREV : STEP_NEXT, TRUE)) { shadow_type = GTK_SHADOW_ETCHED_IN; state_type = GTK_STATE_INSENSITIVE; } if (notebook->tab_pos == GTK_POS_LEFT || notebook->tab_pos == GTK_POS_RIGHT) arrow = (ARROW_IS_LEFT (nbarrow) ? GTK_ARROW_UP : GTK_ARROW_DOWN); else arrow = (ARROW_IS_LEFT (nbarrow) ? GTK_ARROW_LEFT : GTK_ARROW_RIGHT); gtk_paint_arrow (widget->style, widget->window, state_type, shadow_type, NULL, widget, "notebook", arrow, TRUE, arrow_rect.x, arrow_rect.y, ARROW_SIZE, ARROW_SIZE); } } /* Private GtkNotebook Size Allocate Functions: * * gtk_notebook_pages_allocate * gtk_notebook_page_allocate * gtk_notebook_calc_tabs */ static void gtk_notebook_pages_allocate (GtkNotebook *notebook) { GtkWidget *widget = GTK_WIDGET (notebook); GtkContainer *container = GTK_CONTAINER (notebook); GtkNotebookPage *page = NULL; GtkAllocation *allocation = &widget->allocation; GtkAllocation child_allocation; GList *children = NULL; GList *last_child = NULL; gboolean showarrow = FALSE; gint tab_space = 0; gint delta; gint i; gint n = 1; gint old_fill = 0; gint new_fill = 0; gint tab_pos = get_effective_tab_pos (notebook); gboolean is_rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL && (tab_pos == GTK_POS_TOP || tab_pos == GTK_POS_BOTTOM)); gint memo_x; if (!notebook->show_tabs || !notebook->children || !notebook->cur_page) return; child_allocation.x = widget->allocation.x + container->border_width; child_allocation.y = widget->allocation.y + container->border_width; switch (tab_pos) { case GTK_POS_BOTTOM: child_allocation.y = (widget->allocation.y + allocation->height - notebook->cur_page->requisition.height - container->border_width); /* fall through */ case GTK_POS_TOP: child_allocation.height = notebook->cur_page->requisition.height; break; case GTK_POS_RIGHT: child_allocation.x = (widget->allocation.x + allocation->width - notebook->cur_page->requisition.width - container->border_width); /* fall through */ case GTK_POS_LEFT: child_allocation.width = notebook->cur_page->requisition.width; break; } if (notebook->scrollable) { GList *focus_tab; children = notebook->children; if (notebook->focus_tab) focus_tab = notebook->focus_tab; else if (notebook->first_tab) focus_tab = notebook->first_tab; else focus_tab = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE); switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: while (children) { page = children->data; children = children->next; if (GTK_WIDGET_VISIBLE (page->child)) tab_space += page->requisition.width; } if (tab_space > allocation->width - 2 * container->border_width - TAB_OVERLAP) { showarrow = TRUE; page = focus_tab->data; tab_space = allocation->width - TAB_OVERLAP - page->requisition.width - 2 * container->border_width; if (notebook->has_after_previous) tab_space -= ARROW_SPACING + ARROW_SIZE; if (notebook->has_after_next) tab_space -= ARROW_SPACING + ARROW_SIZE; if (notebook->has_before_previous) { tab_space -= ARROW_SPACING + ARROW_SIZE; child_allocation.x += ARROW_SPACING + ARROW_SIZE; } if (notebook->has_before_next) { tab_space -= ARROW_SPACING + ARROW_SIZE; child_allocation.x += ARROW_SPACING + ARROW_SIZE; } } break; case GTK_POS_LEFT: case GTK_POS_RIGHT: while (children) { page = children->data; children = children->next; if (GTK_WIDGET_VISIBLE (page->child)) tab_space += page->requisition.height; } if (tab_space > (allocation->height - 2 * container->border_width - TAB_OVERLAP)) { showarrow = TRUE; page = focus_tab->data; tab_space = allocation->height - TAB_OVERLAP - 2 * container->border_width - page->requisition.height; if (notebook->has_after_previous || notebook->has_after_next) tab_space -= ARROW_SPACING + ARROW_SIZE; if (notebook->has_before_previous || notebook->has_before_next) { tab_space -= ARROW_SPACING + ARROW_SIZE; child_allocation.y += ARROW_SPACING + ARROW_SIZE; } } break; } if (showarrow) /* first_tab <- focus_tab */ { if (tab_space <= 0) { notebook->first_tab = focus_tab; last_child = gtk_notebook_search_page (notebook, focus_tab, STEP_NEXT, TRUE); } else { children = NULL; if (notebook->first_tab && notebook->first_tab != focus_tab) { /* Is first_tab really predecessor of focus_tab ? */ page = notebook->first_tab->data; if (GTK_WIDGET_VISIBLE (page->child)) for (children = focus_tab; children && children != notebook->first_tab; children = gtk_notebook_search_page (notebook, children, STEP_PREV, TRUE)); } if (!children) notebook->first_tab = focus_tab; else gtk_notebook_calc_tabs (notebook, gtk_notebook_search_page (notebook, focus_tab, STEP_PREV, TRUE), &(notebook->first_tab), &tab_space, STEP_PREV); if (tab_space <= 0) { notebook->first_tab = gtk_notebook_search_page (notebook, notebook->first_tab, STEP_NEXT, TRUE); if (!notebook->first_tab) notebook->first_tab = focus_tab; last_child = gtk_notebook_search_page (notebook, focus_tab, STEP_NEXT, TRUE); } else /* focus_tab -> end */ { if (!notebook->first_tab) notebook->first_tab = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE); children = NULL; gtk_notebook_calc_tabs (notebook, gtk_notebook_search_page (notebook, focus_tab, STEP_NEXT, TRUE), &children, &tab_space, STEP_NEXT); if (tab_space <= 0) last_child = children; else /* start <- first_tab */ { last_child = NULL; children = NULL; gtk_notebook_calc_tabs (notebook, gtk_notebook_search_page (notebook, notebook->first_tab, STEP_PREV, TRUE), &children, &tab_space, STEP_PREV); notebook->first_tab = gtk_notebook_search_page(notebook, children, STEP_NEXT, TRUE); } } } if (tab_space < 0) { tab_space = -tab_space; n = 0; for (children = notebook->first_tab; children && children != last_child; children = gtk_notebook_search_page (notebook, children, STEP_NEXT, TRUE)) n++; } else tab_space = 0; /*unmap all non-visible tabs*/ for (children = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE); children && children != notebook->first_tab; children = gtk_notebook_search_page (notebook, children, STEP_NEXT, TRUE)) { page = children->data; if (page->tab_label) gtk_widget_set_child_visible (page->tab_label, FALSE); } for (children = last_child; children; children = gtk_notebook_search_page (notebook, children, STEP_NEXT, TRUE)) { page = children->data; if (page->tab_label) gtk_widget_set_child_visible (page->tab_label, FALSE); } } else /* !showarrow */ { notebook->first_tab = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE); tab_space = 0; } } if (!showarrow) { gint c = 0; n = 0; children = notebook->children; switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: while (children) { page = children->data; children = children->next; if (GTK_WIDGET_VISIBLE (page->child)) { c++; tab_space += page->requisition.width; if (page->expand) n++; } } tab_space -= allocation->width; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: while (children) { page = children->data; children = children->next; if (GTK_WIDGET_VISIBLE (page->child)) { c++; tab_space += page->requisition.height; if (page->expand) n++; } } tab_space -= allocation->height; } tab_space += 2 * container->border_width + TAB_OVERLAP; tab_space *= -1; notebook->first_tab = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE); if (notebook->homogeneous && n) n = c; } children = notebook->first_tab; i = 1; memo_x = child_allocation.x; if (notebook->children && is_rtl) { child_allocation.x = (allocation->x + allocation->width - container->border_width); if (showarrow) { if (notebook->has_after_previous) child_allocation.x -= ARROW_SPACING + ARROW_SIZE; if (notebook->has_after_next) child_allocation.x -= ARROW_SPACING + ARROW_SIZE; } } while (children) { if (children == last_child) { /* FIXME double check */ goto done; } page = children->data; if (!showarrow && page->pack != GTK_PACK_START) break; children = gtk_notebook_search_page (notebook, children, STEP_NEXT,TRUE); delta = 0; if (n && (showarrow || page->expand || notebook->homogeneous)) { new_fill = (tab_space * i++) / n; delta = new_fill - old_fill; old_fill = new_fill; } switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: child_allocation.width = (page->requisition.width + TAB_OVERLAP + delta); if (is_rtl) child_allocation.x -= child_allocation.width; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: child_allocation.height = (page->requisition.height + TAB_OVERLAP + delta); break; } gtk_notebook_page_allocate (notebook, page, &child_allocation); switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: if (!is_rtl) child_allocation.x += child_allocation.width - TAB_OVERLAP; else child_allocation.x += TAB_OVERLAP; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: child_allocation.y += child_allocation.height - TAB_OVERLAP; break; } if (page->tab_label) gtk_widget_set_child_visible (page->tab_label, TRUE); } if (children) { children = notebook->children; switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: if (!is_rtl) child_allocation.x = (allocation->x + allocation->width - container->border_width); else child_allocation.x = memo_x; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: child_allocation.y = (allocation->y + allocation->height - container->border_width); break; } while (children != last_child) { page = children->data; children = children->next; if (page->pack != GTK_PACK_END || !GTK_WIDGET_VISIBLE (page->child)) continue; delta = 0; if (n && (page->expand || notebook->homogeneous)) { new_fill = (tab_space * i++) / n; delta = new_fill - old_fill; old_fill = new_fill; } switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: child_allocation.width = (page->requisition.width + TAB_OVERLAP + delta); if (!is_rtl) child_allocation.x -= child_allocation.width; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: child_allocation.height = (page->requisition.height + TAB_OVERLAP + delta); child_allocation.y -= child_allocation.height; break; } gtk_notebook_page_allocate (notebook, page, &child_allocation); switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: if (!is_rtl) child_allocation.x += TAB_OVERLAP; else child_allocation.x += child_allocation.width - TAB_OVERLAP; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: child_allocation.y += TAB_OVERLAP; break; } if (page->tab_label) gtk_widget_set_child_visible (page->tab_label, TRUE); } } done: gtk_notebook_redraw_tabs (notebook); } static void gtk_notebook_page_allocate (GtkNotebook *notebook, GtkNotebookPage *page, GtkAllocation *allocation) { GtkWidget *widget = GTK_WIDGET (notebook); GtkAllocation child_allocation; GtkRequisition tab_requisition; gint xthickness; gint ythickness; gint padding; gint focus_width; gint tab_pos = get_effective_tab_pos (notebook); gtk_widget_style_get (widget, "focus-line-width", &focus_width, NULL); xthickness = widget->style->xthickness; ythickness = widget->style->ythickness; /* If the size of the notebook tabs change, we need to queue * a redraw on the tab area */ if ((allocation->width != page->allocation.width) || (allocation->height != page->allocation.height)) { gint x, y, width, height, border_width; border_width = GTK_CONTAINER (notebook)->border_width; switch (tab_pos) { case GTK_POS_TOP: width = widget->allocation.width; height = MAX (page->allocation.height, allocation->height) + ythickness; x = 0; y = border_width; break; case GTK_POS_BOTTOM: width = widget->allocation.width + xthickness; height = MAX (page->allocation.height, allocation->height) + ythickness; x = 0; y = widget->allocation.height - height - border_width; break; case GTK_POS_LEFT: width = MAX (page->allocation.width, allocation->width) + xthickness; height = widget->allocation.height; x = border_width; y = 0; break; case GTK_POS_RIGHT: default: /* quiet gcc */ width = MAX (page->allocation.width, allocation->width) + xthickness; height = widget->allocation.height; x = widget->allocation.width - width - border_width; y = 0; break; } gtk_widget_queue_draw_area (widget, x, y, width, height); } page->allocation = *allocation; gtk_widget_get_child_requisition (page->tab_label, &tab_requisition); if (notebook->cur_page != page) { switch (tab_pos) { case GTK_POS_TOP: page->allocation.y += ythickness; case GTK_POS_BOTTOM: if (page->allocation.height > ythickness) page->allocation.height -= ythickness; break; case GTK_POS_LEFT: page->allocation.x += xthickness; case GTK_POS_RIGHT: if (page->allocation.width > xthickness) page->allocation.width -= xthickness; break; } } switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: padding = TAB_CURVATURE + focus_width + notebook->tab_hborder; if (page->fill) { child_allocation.x = (xthickness + focus_width + notebook->tab_hborder); child_allocation.width = MAX (1, (page->allocation.width - 2 * child_allocation.x)); child_allocation.x += page->allocation.x; } else { child_allocation.x = (page->allocation.x + (page->allocation.width - tab_requisition.width) / 2); child_allocation.width = tab_requisition.width; } child_allocation.y = (notebook->tab_vborder + focus_width + page->allocation.y); if (tab_pos == GTK_POS_TOP) child_allocation.y += ythickness; child_allocation.height = MAX (1, (((gint) page->allocation.height) - ythickness - 2 * (notebook->tab_vborder + focus_width))); break; case GTK_POS_LEFT: case GTK_POS_RIGHT: padding = TAB_CURVATURE + focus_width + notebook->tab_vborder; if (page->fill) { child_allocation.y = ythickness + padding; child_allocation.height = MAX (1, (page->allocation.height - 2 * child_allocation.y)); child_allocation.y += page->allocation.y; } else { child_allocation.y = (page->allocation.y + (page->allocation.height - tab_requisition.height) / 2); child_allocation.height = tab_requisition.height; } child_allocation.x = page->allocation.x + notebook->tab_hborder + focus_width; if (tab_pos == GTK_POS_LEFT) child_allocation.x += xthickness; child_allocation.width = MAX (1, (((gint) page->allocation.width) - xthickness - 2 * (notebook->tab_hborder + focus_width))); break; } if (page->tab_label) gtk_widget_size_allocate (page->tab_label, &child_allocation); } static void gtk_notebook_calc_tabs (GtkNotebook *notebook, GList *start, GList **end, gint *tab_space, guint direction) { GtkNotebookPage *page = NULL; GList *children; GList *last_list = NULL; gboolean pack; gint tab_pos = get_effective_tab_pos (notebook); if (!start) return; children = start; pack = GTK_NOTEBOOK_PAGE (start)->pack; if (pack == GTK_PACK_END) direction = (direction == STEP_PREV) ? STEP_NEXT : STEP_PREV; while (1) { switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: while (children) { page = children->data; if (GTK_WIDGET_VISIBLE (page->child)) { if (page->pack == pack) { *tab_space -= page->requisition.width; if (*tab_space < 0 || children == *end) { if (*tab_space < 0) { *tab_space = - (*tab_space + page->requisition.width); *end = children; } return; } } last_list = children; } if (direction == STEP_NEXT) children = children->next; else children = children->prev; } break; case GTK_POS_LEFT: case GTK_POS_RIGHT: while (children) { page = children->data; if (GTK_WIDGET_VISIBLE (page->child)) { if (page->pack == pack) { *tab_space -= page->requisition.height; if (*tab_space < 0 || children == *end) { if (*tab_space < 0) { *tab_space = - (*tab_space + page->requisition.height); *end = children; } return; } } last_list = children; } if (direction == STEP_NEXT) children = children->next; else children = children->prev; } break; } if (direction == STEP_PREV) return; pack = (pack == GTK_PACK_END) ? GTK_PACK_START : GTK_PACK_END; direction = STEP_PREV; children = last_list; } } static void gtk_notebook_update_tab_states (GtkNotebook *notebook) { GList *list; for (list = notebook->children; list != NULL; list = list->next) { GtkNotebookPage *page = list->data; if (page->tab_label) { if (page == notebook->cur_page) gtk_widget_set_state (page->tab_label, GTK_STATE_NORMAL); else gtk_widget_set_state (page->tab_label, GTK_STATE_ACTIVE); } } } /* Private GtkNotebook Page Switch Methods: * * gtk_notebook_real_switch_page */ static void gtk_notebook_real_switch_page (GtkNotebook *notebook, GtkNotebookPage *page, guint page_num) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (page != NULL); if (notebook->cur_page == page || !GTK_WIDGET_VISIBLE (page->child)) return; if (notebook->cur_page) gtk_widget_set_child_visible (notebook->cur_page->child, FALSE); notebook->cur_page = page; if (!notebook->focus_tab || notebook->focus_tab->data != (gpointer) notebook->cur_page) notebook->focus_tab = g_list_find (notebook->children, notebook->cur_page); gtk_widget_set_child_visible (notebook->cur_page->child, TRUE); /* If the focus was on the previous page, move it to the first * element on the new page, if possible, or if not, to the * notebook itself. */ if (notebook->child_has_focus) { if (notebook->cur_page->last_focus_child && gtk_widget_is_ancestor (notebook->cur_page->last_focus_child, notebook->cur_page->child)) gtk_widget_grab_focus (notebook->cur_page->last_focus_child); else if (!gtk_widget_child_focus (notebook->cur_page->child, GTK_DIR_TAB_FORWARD)) gtk_widget_grab_focus (GTK_WIDGET (notebook)); } gtk_notebook_update_tab_states (notebook); gtk_widget_queue_resize (GTK_WIDGET (notebook)); g_object_notify (G_OBJECT (notebook), "page"); } /* Private GtkNotebook Page Switch Functions: * * gtk_notebook_switch_page * gtk_notebook_page_select * gtk_notebook_switch_focus_tab * gtk_notebook_menu_switch_page */ static void gtk_notebook_switch_page (GtkNotebook *notebook, GtkNotebookPage *page, gint page_num) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (page != NULL); if (notebook->cur_page == page) return; if (page_num < 0) page_num = g_list_index (notebook->children, page); g_signal_emit (notebook, notebook_signals[SWITCH_PAGE], 0, page, page_num); } static gint gtk_notebook_page_select (GtkNotebook *notebook, gboolean move_focus) { GtkNotebookPage *page; GtkDirectionType dir = GTK_DIR_DOWN; /* Quiet GCC */ gint tab_pos = get_effective_tab_pos (notebook); g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE); if (!notebook->focus_tab) return FALSE; page = notebook->focus_tab->data; gtk_notebook_switch_page (notebook, page, -1); if (move_focus) { switch (tab_pos) { case GTK_POS_TOP: dir = GTK_DIR_DOWN; break; case GTK_POS_BOTTOM: dir = GTK_DIR_UP; break; case GTK_POS_LEFT: dir = GTK_DIR_RIGHT; break; case GTK_POS_RIGHT: dir = GTK_DIR_LEFT; break; } if (gtk_widget_child_focus (page->child, dir)) return TRUE; } return FALSE; } static void gtk_notebook_switch_focus_tab (GtkNotebook *notebook, GList *new_child) { GList *old_child; GtkNotebookPage *old_page = NULL; GtkNotebookPage *page; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (notebook->focus_tab == new_child) return; old_child = notebook->focus_tab; notebook->focus_tab = new_child; if (notebook->scrollable) gtk_notebook_redraw_arrows (notebook); if (!notebook->show_tabs || !notebook->focus_tab) return; if (old_child) old_page = old_child->data; page = notebook->focus_tab->data; if (GTK_WIDGET_MAPPED (page->tab_label)) gtk_notebook_redraw_tabs (notebook); else gtk_notebook_pages_allocate (notebook); gtk_notebook_switch_page (notebook, page, g_list_index (notebook->children, page)); } static void gtk_notebook_menu_switch_page (GtkWidget *widget, GtkNotebookPage *page) { GtkNotebook *notebook; GList *children; guint page_num; g_return_if_fail (widget != NULL); g_return_if_fail (page != NULL); notebook = GTK_NOTEBOOK (gtk_menu_get_attach_widget (GTK_MENU (widget->parent))); if (notebook->cur_page == page) return; page_num = 0; children = notebook->children; while (children && children->data != page) { children = children->next; page_num++; } g_signal_emit (notebook, notebook_signals[SWITCH_PAGE], 0, page, page_num); } /* Private GtkNotebook Menu Functions: * * gtk_notebook_menu_item_create * gtk_notebook_menu_label_unparent * gtk_notebook_menu_detacher */ static void gtk_notebook_menu_item_create (GtkNotebook *notebook, GList *list) { GtkNotebookPage *page; GtkWidget *menu_item; page = list->data; if (page->default_menu) { if (page->tab_label && GTK_IS_LABEL (page->tab_label)) page->menu_label = gtk_label_new (GTK_LABEL (page->tab_label)->label); else page->menu_label = gtk_label_new (""); gtk_misc_set_alignment (GTK_MISC (page->menu_label), 0.0, 0.5); } gtk_widget_show (page->menu_label); menu_item = gtk_menu_item_new (); gtk_container_add (GTK_CONTAINER (menu_item), page->menu_label); gtk_menu_shell_insert (GTK_MENU_SHELL (notebook->menu), menu_item, gtk_notebook_real_page_position (notebook, list)); g_signal_connect (menu_item, "activate", G_CALLBACK (gtk_notebook_menu_switch_page), page); if (GTK_WIDGET_VISIBLE (page->child)) gtk_widget_show (menu_item); } static void gtk_notebook_menu_label_unparent (GtkWidget *widget, gpointer data) { gtk_widget_unparent (GTK_BIN(widget)->child); GTK_BIN(widget)->child = NULL; } static void gtk_notebook_menu_detacher (GtkWidget *widget, GtkMenu *menu) { GtkNotebook *notebook; g_return_if_fail (GTK_IS_NOTEBOOK (widget)); notebook = GTK_NOTEBOOK (widget); g_return_if_fail (notebook->menu == (GtkWidget*) menu); notebook->menu = NULL; } /* Private GtkNotebook Setter Functions: * * gtk_notebook_set_homogeneous_tabs_internal * gtk_notebook_set_tab_border_internal * gtk_notebook_set_tab_hborder_internal * gtk_notebook_set_tab_vborder_internal */ static void gtk_notebook_set_homogeneous_tabs_internal (GtkNotebook *notebook, gboolean homogeneous) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (homogeneous == notebook->homogeneous) return; notebook->homogeneous = homogeneous; gtk_widget_queue_resize (GTK_WIDGET (notebook)); g_object_notify (G_OBJECT (notebook), "homogeneous"); } static void gtk_notebook_set_tab_border_internal (GtkNotebook *notebook, guint border_width) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); notebook->tab_hborder = border_width; notebook->tab_vborder = border_width; if (GTK_WIDGET_VISIBLE (notebook) && notebook->show_tabs) gtk_widget_queue_resize (GTK_WIDGET (notebook)); g_object_freeze_notify (G_OBJECT (notebook)); g_object_notify (G_OBJECT (notebook), "tab_hborder"); g_object_notify (G_OBJECT (notebook), "tab_vborder"); g_object_thaw_notify (G_OBJECT (notebook)); } static void gtk_notebook_set_tab_hborder_internal (GtkNotebook *notebook, guint tab_hborder) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (notebook->tab_hborder == tab_hborder) return; notebook->tab_hborder = tab_hborder; if (GTK_WIDGET_VISIBLE (notebook) && notebook->show_tabs) gtk_widget_queue_resize (GTK_WIDGET (notebook)); g_object_notify (G_OBJECT (notebook), "tab_hborder"); } static void gtk_notebook_set_tab_vborder_internal (GtkNotebook *notebook, guint tab_vborder) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (notebook->tab_vborder == tab_vborder) return; notebook->tab_vborder = tab_vborder; if (GTK_WIDGET_VISIBLE (notebook) && notebook->show_tabs) gtk_widget_queue_resize (GTK_WIDGET (notebook)); g_object_notify (G_OBJECT (notebook), "tab_vborder"); } /* Public GtkNotebook Page Insert/Remove Methods : * * gtk_notebook_append_page * gtk_notebook_append_page_menu * gtk_notebook_prepend_page * gtk_notebook_prepend_page_menu * gtk_notebook_insert_page * gtk_notebook_insert_page_menu * gtk_notebook_remove_page */ /** * gtk_notebook_append_page: * @notebook: a #GtkNotebook * @child: the #GtkWidget to use as the contents of the page. * @tab_label: the #GtkWidget to be used as the label for the page, * or %NULL to use the default label, 'page N'. * * Appends a page to @notebook. * * Return value: the index (starting from 0) of the appended * page in the notebook, or -1 if function fails **/ gint gtk_notebook_append_page (GtkNotebook *notebook, GtkWidget *child, GtkWidget *tab_label) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1); g_return_val_if_fail (GTK_IS_WIDGET (child), -1); g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1); return gtk_notebook_insert_page_menu (notebook, child, tab_label, NULL, -1); } /** * gtk_notebook_append_page_menu: * @notebook: a #GtkNotebook * @child: the #GtkWidget to use as the contents of the page. * @tab_label: the #GtkWidget to be used as the label for the page, * or %NULL to use the default label, 'page N'. * @menu_label: the widget to use as a label for the page-switch * menu, if that is enabled. If %NULL, and @tab_label * is a #GtkLabel or %NULL, then the menu label will be * a newly created label with the same text as @tab_label; * If @tab_label is not a #GtkLabel, @menu_label must be * specified if the page-switch menu is to be used. * * Appends a page to @notebook, specifying the widget to use as the * label in the popup menu. * * Return value: the index (starting from 0) of the appended * page in the notebook, or -1 if function fails **/ gint gtk_notebook_append_page_menu (GtkNotebook *notebook, GtkWidget *child, GtkWidget *tab_label, GtkWidget *menu_label) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1); g_return_val_if_fail (GTK_IS_WIDGET (child), -1); g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1); g_return_val_if_fail (menu_label == NULL || GTK_IS_WIDGET (menu_label), -1); return gtk_notebook_insert_page_menu (notebook, child, tab_label, menu_label, -1); } /** * gtk_notebook_prepend_page: * @notebook: a #GtkNotebook * @child: the #GtkWidget to use as the contents of the page. * @tab_label: the #GtkWidget to be used as the label for the page, * or %NULL to use the default label, 'page N'. * * Prepends a page to @notebook. * * Return value: the index (starting from 0) of the prepended * page in the notebook, or -1 if function fails **/ gint gtk_notebook_prepend_page (GtkNotebook *notebook, GtkWidget *child, GtkWidget *tab_label) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1); g_return_val_if_fail (GTK_IS_WIDGET (child), -1); g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1); return gtk_notebook_insert_page_menu (notebook, child, tab_label, NULL, 0); } /** * gtk_notebook_prepend_page_menu: * @notebook: a #GtkNotebook * @child: the #GtkWidget to use as the contents of the page. * @tab_label: the #GtkWidget to be used as the label for the page, * or %NULL to use the default label, 'page N'. * @menu_label: the widget to use as a label for the page-switch * menu, if that is enabled. If %NULL, and @tab_label * is a #GtkLabel or %NULL, then the menu label will be * a newly created label with the same text as @tab_label; * If @tab_label is not a #GtkLabel, @menu_label must be * specified if the page-switch menu is to be used. * * Prepends a page to @notebook, specifying the widget to use as the * label in the popup menu. * * Return value: the index (starting from 0) of the prepended * page in the notebook, or -1 if function fails **/ gint gtk_notebook_prepend_page_menu (GtkNotebook *notebook, GtkWidget *child, GtkWidget *tab_label, GtkWidget *menu_label) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1); g_return_val_if_fail (GTK_IS_WIDGET (child), -1); g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1); g_return_val_if_fail (menu_label == NULL || GTK_IS_WIDGET (menu_label), -1); return gtk_notebook_insert_page_menu (notebook, child, tab_label, menu_label, 0); } /** * gtk_notebook_insert_page: * @notebook: a #GtkNotebook * @child: the #GtkWidget to use as the contents of the page. * @tab_label: the #GtkWidget to be used as the label for the page, * or %NULL to use the default label, 'page N'. * @position: the index (starting at 0) at which to insert the page, * or -1 to append the page after all other pages. * * Insert a page into @notebook at the given position. * * Return value: the index (starting from 0) of the inserted * page in the notebook, or -1 if function fails **/ gint gtk_notebook_insert_page (GtkNotebook *notebook, GtkWidget *child, GtkWidget *tab_label, gint position) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1); g_return_val_if_fail (GTK_IS_WIDGET (child), -1); g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1); return gtk_notebook_insert_page_menu (notebook, child, tab_label, NULL, position); } static gint gtk_notebook_page_compare_tab (gconstpointer a, gconstpointer b) { return (((GtkNotebookPage *) a)->tab_label != b); } static gboolean gtk_notebook_mnemonic_activate_switch_page (GtkWidget *child, gboolean overload, gpointer data) { GtkNotebook *notebook = GTK_NOTEBOOK (data); GList *list; list = g_list_find_custom (notebook->children, child, gtk_notebook_page_compare_tab); if (list) { GtkNotebookPage *page = list->data; gtk_widget_grab_focus (GTK_WIDGET (notebook)); /* Do this first to avoid focusing new page */ gtk_notebook_switch_page (notebook, page, -1); focus_tabs_in (notebook); } return TRUE; } /** * gtk_notebook_insert_page_menu: * @notebook: a #GtkNotebook * @child: the #GtkWidget to use as the contents of the page. * @tab_label: the #GtkWidget to be used as the label for the page, * or %NULL to use the default label, 'page N'. * @menu_label: the widget to use as a label for the page-switch * menu, if that is enabled. If %NULL, and @tab_label * is a #GtkLabel or %NULL, then the menu label will be * a newly created label with the same text as @tab_label; * If @tab_label is not a #GtkLabel, @menu_label must be * specified if the page-switch menu is to be used. * @position: the index (starting at 0) at which to insert the page, * or -1 to append the page after all other pages. * * Insert a page into @notebook at the given position, specifying * the widget to use as the label in the popup menu. * * Return value: the index (starting from 0) of the inserted * page in the notebook, or -1 if function fails **/ gint gtk_notebook_insert_page_menu (GtkNotebook *notebook, GtkWidget *child, GtkWidget *tab_label, GtkWidget *menu_label, gint position) { GtkNotebookPage *page; gint nchildren; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1); g_return_val_if_fail (GTK_IS_WIDGET (child), -1); g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1); g_return_val_if_fail (menu_label == NULL || GTK_IS_WIDGET (menu_label), -1); gtk_widget_freeze_child_notify (child); page = g_new (GtkNotebookPage, 1); page->child = child; page->last_focus_child = NULL; page->requisition.width = 0; page->requisition.height = 0; page->allocation.x = 0; page->allocation.y = 0; page->allocation.width = 0; page->allocation.height = 0; page->default_menu = FALSE; page->default_tab = FALSE; page->mnemonic_activate_signal = 0; nchildren = g_list_length (notebook->children); if ((position < 0) || (position > nchildren)) position = nchildren; notebook->children = g_list_insert (notebook->children, page, position); if (!tab_label) { page->default_tab = TRUE; if (notebook->show_tabs) tab_label = gtk_label_new (""); } page->tab_label = tab_label; page->menu_label = menu_label; page->expand = FALSE; page->fill = TRUE; page->pack = GTK_PACK_START; if (!menu_label) page->default_menu = TRUE; else { g_object_ref (page->menu_label); gtk_object_sink (GTK_OBJECT (page->menu_label)); } if (notebook->menu) gtk_notebook_menu_item_create (notebook, g_list_find (notebook->children, page)); gtk_widget_set_parent (child, GTK_WIDGET (notebook)); if (tab_label) gtk_widget_set_parent (tab_label, GTK_WIDGET (notebook)); gtk_notebook_update_labels (notebook); if (!notebook->first_tab) notebook->first_tab = notebook->children; if (!notebook->cur_page) gtk_widget_set_child_visible (child, TRUE); else gtk_widget_set_child_visible (child, FALSE); if (tab_label) { if (notebook->show_tabs && GTK_WIDGET_VISIBLE (child)) gtk_widget_show (tab_label); else gtk_widget_hide (tab_label); } if (!notebook->cur_page) { gtk_notebook_switch_page (notebook, page, 0); gtk_notebook_switch_focus_tab (notebook, NULL); } gtk_notebook_update_tab_states (notebook); if (tab_label) page->mnemonic_activate_signal = g_signal_connect (tab_label, "mnemonic_activate", G_CALLBACK (gtk_notebook_mnemonic_activate_switch_page), notebook); gtk_widget_child_notify (child, "tab_expand"); gtk_widget_child_notify (child, "tab_fill"); gtk_widget_child_notify (child, "tab_pack"); gtk_widget_child_notify (child, "tab_label"); gtk_widget_child_notify (child, "menu_label"); gtk_widget_child_notify (child, "position"); gtk_widget_thaw_child_notify (child); return position; } /** * gtk_notebook_remove_page: * @notebook: a #GtkNotebook. * @page_num: the index of a notebook page, starting * from 0. If -1, the last page will * be removed. * * Removes a page from the notebook given its index * in the notebook. **/ void gtk_notebook_remove_page (GtkNotebook *notebook, gint page_num) { GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (page_num >= 0) { list = g_list_nth (notebook->children, page_num); if (list) gtk_notebook_real_remove (notebook, list, FALSE); } else { list = g_list_last (notebook->children); if (list) gtk_notebook_real_remove (notebook, list, FALSE); } } /* Public GtkNotebook Page Switch Methods : * gtk_notebook_get_current_page * gtk_notebook_page_num * gtk_notebook_set_current_page * gtk_notebook_next_page * gtk_notebook_prev_page */ /** * gtk_notebook_get_current_page: * @notebook: a #GtkNotebook * * Returns the page number of the current page. * * Return value: the index (starting from 0) of the current * page in the notebook. If the notebook has no pages, then * -1 will be returned. **/ gint gtk_notebook_get_current_page (GtkNotebook *notebook) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1); if (!notebook->cur_page) return -1; return g_list_index (notebook->children, notebook->cur_page); } /** * gtk_notebook_get_nth_page: * @notebook: a #GtkNotebook * @page_num: the index of a page in the noteobok, or -1 * to get the last page. * * Returns the child widget contained in page number @page_num. * * Return value: the child widget, or %NULL if @page_num is * out of bounds. **/ GtkWidget* gtk_notebook_get_nth_page (GtkNotebook *notebook, gint page_num) { GtkNotebookPage *page; GList *list; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL); if (page_num >= 0) list = g_list_nth (notebook->children, page_num); else list = g_list_last (notebook->children); if (list) { page = list->data; return page->child; } return NULL; } /** * gtk_notebook_get_n_pages: * @notebook: a #GtkNotebook * * Gets the number of pages in a notebook. * * Return value: the number of pages in the notebook. * * Since: 2.2 **/ gint gtk_notebook_get_n_pages (GtkNotebook *notebook) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), 0); return g_list_length (notebook->children); } /** * gtk_notebook_page_num: * @notebook: a #GtkNotebook * @child: a #GtkWidget * * Finds the index of the page which contains the given child * widget. * * Return value: the index of the page containing @child, or * -1 if @child is not in the notebook. **/ gint gtk_notebook_page_num (GtkNotebook *notebook, GtkWidget *child) { GList *children; gint num; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1); num = 0; children = notebook->children; while (children) { GtkNotebookPage *page = children->data; if (page->child == child) return num; children = children->next; num++; } return -1; } /** * gtk_notebook_set_current_page: * @notebook: a #GtkNotebook * @page_num: index of the page to switch to, starting from 0. * If negative, the last page will be used. If greater * than the number of pages in the notebook, nothing * will be done. * * Switches to the page number @page_num. **/ void gtk_notebook_set_current_page (GtkNotebook *notebook, gint page_num) { GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (page_num >= 0) list = g_list_nth (notebook->children, page_num); else list = g_list_last (notebook->children); page_num = g_list_index (notebook->children, list); if (list) gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (list), page_num); } /** * gtk_notebook_next_page: * @notebook: a #GtkNotebook * * Switches to the next page. Nothing happens if the current page is * the last page. **/ void gtk_notebook_next_page (GtkNotebook *notebook) { GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); list = g_list_find (notebook->children, notebook->cur_page); if (!list) return; list = gtk_notebook_search_page (notebook, list, STEP_NEXT, TRUE); if (!list) return; gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (list), -1); } /** * gtk_notebook_prev_page: * @notebook: a #GtkNotebook * * Switches to the previous page. Nothing happens if the current page * is the first page. **/ void gtk_notebook_prev_page (GtkNotebook *notebook) { GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); list = g_list_find (notebook->children, notebook->cur_page); if (!list) return; list = gtk_notebook_search_page (notebook, list, STEP_PREV, TRUE); if (!list) return; gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (list), -1); } /* Public GtkNotebook/Tab Style Functions * * gtk_notebook_set_show_border * gtk_notebook_set_show_tabs * gtk_notebook_set_tab_pos * gtk_notebook_set_homogeneous_tabs * gtk_notebook_set_tab_border * gtk_notebook_set_tab_hborder * gtk_notebook_set_tab_vborder * gtk_notebook_set_scrollable */ /** * gtk_notebook_set_show_border: * @notebook: a #GtkNotebook * @show_border: %TRUE if a bevel should be drawn around the notebook. * * Sets whether a bevel will be drawn around the notebook pages. * This only has a visual effect when the tabs are not shown. * See gtk_notebook_set_show_tabs(). **/ void gtk_notebook_set_show_border (GtkNotebook *notebook, gboolean show_border) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (notebook->show_border != show_border) { notebook->show_border = show_border; if (GTK_WIDGET_VISIBLE (notebook)) gtk_widget_queue_resize (GTK_WIDGET (notebook)); g_object_notify (G_OBJECT (notebook), "show_border"); } } /** * gtk_notebook_get_show_border: * @notebook: a #GtkNotebook * * Returns whether a bevel will be drawn around the notebook pages. See * gtk_notebook_set_show_border(). * * Return value: %TRUE if the bevel is drawn **/ gboolean gtk_notebook_get_show_border (GtkNotebook *notebook) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE); return notebook->show_border; } /** * gtk_notebook_set_show_tabs: * @notebook: a #GtkNotebook * @show_tabs: %TRUE if the tabs should be shown. * * Sets whether to show the tabs for the notebook or not. **/ void gtk_notebook_set_show_tabs (GtkNotebook *notebook, gboolean show_tabs) { GtkNotebookPage *page; GList *children; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); show_tabs = show_tabs != FALSE; if (notebook->show_tabs == show_tabs) return; notebook->show_tabs = show_tabs; children = notebook->children; if (!show_tabs) { GTK_WIDGET_UNSET_FLAGS (notebook, GTK_CAN_FOCUS); while (children) { page = children->data; children = children->next; if (page->default_tab) { gtk_widget_destroy (page->tab_label); page->tab_label = NULL; } else gtk_widget_hide (page->tab_label); } } else { GTK_WIDGET_SET_FLAGS (notebook, GTK_CAN_FOCUS); gtk_notebook_update_labels (notebook); } gtk_widget_queue_resize (GTK_WIDGET (notebook)); g_object_notify (G_OBJECT (notebook), "show_tabs"); } /** * gtk_notebook_get_show_tabs: * @notebook: a #GtkNotebook * * Returns whether the tabs of the notebook are shown. See * gtk_notebook_set_show_tabs(). * * Return value: %TRUE if the tabs are shown **/ gboolean gtk_notebook_get_show_tabs (GtkNotebook *notebook) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE); return notebook->show_tabs; } /** * gtk_notebook_set_tab_pos: * @notebook: a #GtkNotebook. * @pos: the edge to draw the tabs at. * * Sets the edge at which the tabs for switching pages in the * notebook are drawn. **/ void gtk_notebook_set_tab_pos (GtkNotebook *notebook, GtkPositionType pos) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (notebook->tab_pos != pos) { notebook->tab_pos = pos; if (GTK_WIDGET_VISIBLE (notebook)) gtk_widget_queue_resize (GTK_WIDGET (notebook)); } g_object_notify (G_OBJECT (notebook), "tab_pos"); } /** * gtk_notebook_get_tab_pos: * @notebook: a #GtkNotebook * * Gets the edge at which the tabs for switching pages in the * notebook are drawn. * * Return value: the edge at which the tabs are drawn **/ GtkPositionType gtk_notebook_get_tab_pos (GtkNotebook *notebook) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), GTK_POS_TOP); return notebook->tab_pos; } /** * gtk_notebook_set_homogeneous_tabs: * @notebook: a #GtkNotebook * @homogeneous: %TRUE if all tabs should be the same size. * * Sets whether the tabs must have all the same size or not. **/ void gtk_notebook_set_homogeneous_tabs (GtkNotebook *notebook, gboolean homogeneous) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); gtk_notebook_set_homogeneous_tabs_internal (notebook, homogeneous); } /** * gtk_notebook_set_tab_border: * @notebook: a #GtkNotebook * @border_width: width of the border around the tab labels. * * Sets the width the border around the tab labels * in a notebook. This is equivalent to calling * gtk_notebook_set_tab_hborder (@notebook, @border_width) followed * by gtk_notebook_set_tab_vborder (@notebook, @border_width). **/ void gtk_notebook_set_tab_border (GtkNotebook *notebook, guint border_width) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); gtk_notebook_set_tab_border_internal (notebook, border_width); } /** * gtk_notebook_set_tab_hborder: * @notebook: a #GtkNotebook * @tab_hborder: width of the horizontal border of tab labels. * * Sets the width of the horizontal border of tab labels. **/ void gtk_notebook_set_tab_hborder (GtkNotebook *notebook, guint tab_hborder) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); gtk_notebook_set_tab_hborder_internal (notebook, tab_hborder); } /** * gtk_notebook_set_tab_vborder: * @notebook: a #GtkNotebook * @tab_vborder: width of the vertical border of tab labels. * * Sets the width of the vertical border of tab labels. **/ void gtk_notebook_set_tab_vborder (GtkNotebook *notebook, guint tab_vborder) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); gtk_notebook_set_tab_vborder_internal (notebook, tab_vborder); } /** * gtk_notebook_set_scrollable: * @notebook: a #GtkNotebook * @scrollable: %TRUE if scroll arrows should be added * * Sets whether the tab label area will have arrows for scrolling if * there are too many tabs to fit in the area. **/ void gtk_notebook_set_scrollable (GtkNotebook *notebook, gboolean scrollable) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); scrollable = (scrollable != FALSE); if (scrollable != notebook->scrollable) { notebook->scrollable = scrollable; if (GTK_WIDGET_VISIBLE (notebook)) gtk_widget_queue_resize (GTK_WIDGET (notebook)); g_object_notify (G_OBJECT (notebook), "scrollable"); } } /** * gtk_notebook_get_scrollable: * @notebook: a #GtkNotebook * * Returns whether the tab label area has arrows for scrolling. See * gtk_notebook_set_scrollable(). * * Return value: %TRUE if arrows for scrolling are present **/ gboolean gtk_notebook_get_scrollable (GtkNotebook *notebook) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE); return notebook->scrollable; } /* Public GtkNotebook Popup Menu Methods: * * gtk_notebook_popup_enable * gtk_notebook_popup_disable */ /** * gtk_notebook_popup_enable: * @notebook: a #GtkNotebook * * Enables the popup menu: if the user clicks with the right mouse button on * the bookmarks, a menu with all the pages will be popped up. **/ void gtk_notebook_popup_enable (GtkNotebook *notebook) { GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (notebook->menu) return; notebook->menu = gtk_menu_new (); for (list = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, FALSE); list; list = gtk_notebook_search_page (notebook, list, STEP_NEXT, FALSE)) gtk_notebook_menu_item_create (notebook, list); gtk_notebook_update_labels (notebook); gtk_menu_attach_to_widget (GTK_MENU (notebook->menu), GTK_WIDGET (notebook), gtk_notebook_menu_detacher); g_object_notify (G_OBJECT (notebook), "enable_popup"); } /** * gtk_notebook_popup_disable: * @notebook: a #GtkNotebook * * Disables the popup menu. **/ void gtk_notebook_popup_disable (GtkNotebook *notebook) { g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (!notebook->menu) return; gtk_container_foreach (GTK_CONTAINER (notebook->menu), (GtkCallback) gtk_notebook_menu_label_unparent, NULL); gtk_widget_destroy (notebook->menu); g_object_notify (G_OBJECT (notebook), "enable_popup"); } /* Public GtkNotebook Page Properties Functions: * * gtk_notebook_get_tab_label * gtk_notebook_set_tab_label * gtk_notebook_set_tab_label_text * gtk_notebook_get_menu_label * gtk_notebook_set_menu_label * gtk_notebook_set_menu_label_text * gtk_notebook_set_tab_label_packing * gtk_notebook_query_tab_label_packing */ /** * gtk_notebook_get_tab_label: * @notebook: a #GtkNotebook * @child: the page * * Returns the tab label widget for the page @child. %NULL is returned * if @child is not in @notebook or if no tab label has specifically * been set for @child. * * Return value: the tab label **/ GtkWidget * gtk_notebook_get_tab_label (GtkNotebook *notebook, GtkWidget *child) { GList *list; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL); g_return_val_if_fail (GTK_IS_WIDGET (child), NULL); list = CHECK_FIND_CHILD (notebook, child); if (!list) return NULL; if (GTK_NOTEBOOK_PAGE (list)->default_tab) return NULL; return GTK_NOTEBOOK_PAGE (list)->tab_label; } /** * gtk_notebook_set_tab_label: * @notebook: a #GtkNotebook * @child: the page * @tab_label: the tab label widget to use, or %NULL for default tab * label. * * Changes the tab label for @child. If %NULL is specified * for @tab_label, then the page will have the label 'page N'. **/ void gtk_notebook_set_tab_label (GtkNotebook *notebook, GtkWidget *child, GtkWidget *tab_label) { GtkNotebookPage *page; GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (GTK_IS_WIDGET (child)); list = CHECK_FIND_CHILD (notebook, child); if (!list) return; /* a NULL pointer indicates a default_tab setting, otherwise * we need to set the associated label */ page = list->data; if (page->tab_label == tab_label) return; gtk_notebook_remove_tab_label (notebook, page); if (tab_label) { page->default_tab = FALSE; page->tab_label = tab_label; gtk_widget_set_parent (page->tab_label, GTK_WIDGET (notebook)); } else { page->default_tab = TRUE; page->tab_label = NULL; if (notebook->show_tabs) { gchar string[32]; g_snprintf (string, sizeof(string), _("Page %u"), gtk_notebook_real_page_position (notebook, list)); page->tab_label = gtk_label_new (string); gtk_widget_set_parent (page->tab_label, GTK_WIDGET (notebook)); } } if (page->tab_label) page->mnemonic_activate_signal = g_signal_connect (page->tab_label, "mnemonic_activate", G_CALLBACK (gtk_notebook_mnemonic_activate_switch_page), notebook); if (notebook->show_tabs && GTK_WIDGET_VISIBLE (child)) { gtk_widget_show (page->tab_label); gtk_widget_queue_resize (GTK_WIDGET (notebook)); } gtk_notebook_update_tab_states (notebook); gtk_widget_child_notify (child, "tab_label"); } /** * gtk_notebook_set_tab_label_text: * @notebook: a #GtkNotebook * @child: the page * @tab_text: the label text * * Creates a new label and sets it as the tab label for the page * containing @child. **/ void gtk_notebook_set_tab_label_text (GtkNotebook *notebook, GtkWidget *child, const gchar *tab_text) { GtkWidget *tab_label = NULL; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (tab_text) tab_label = gtk_label_new (tab_text); gtk_notebook_set_tab_label (notebook, child, tab_label); gtk_widget_child_notify (child, "tab_label"); } /** * gtk_notebook_get_tab_label_text: * @notebook: a #GtkNotebook * @child: a widget contained in a page of @notebook * * Retrieves the text of the tab label for the page containing * @child. * * Returns value: the text of the tab label, or %NULL if the * tab label widget is not a #GtkLabel. The * string is owned by the widget and must not * be freed. **/ G_CONST_RETURN gchar * gtk_notebook_get_tab_label_text (GtkNotebook *notebook, GtkWidget *child) { GtkWidget *tab_label; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL); g_return_val_if_fail (GTK_IS_WIDGET (child), NULL); tab_label = gtk_notebook_get_tab_label (notebook, child); if (tab_label && GTK_IS_LABEL (tab_label)) return gtk_label_get_text (GTK_LABEL (tab_label)); else return NULL; } /** * gtk_notebook_get_menu_label: * @notebook: a #GtkNotebook * @child: a widget contained in a page of @notebook * * Retrieves the menu label widget of the page containing @child. * * Return value: the menu label, or %NULL if the * notebook page does not have a menu label other * than the default (the tab label). **/ GtkWidget* gtk_notebook_get_menu_label (GtkNotebook *notebook, GtkWidget *child) { GList *list; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL); g_return_val_if_fail (GTK_IS_WIDGET (child), NULL); list = CHECK_FIND_CHILD (notebook, child); if (!list) return NULL; if (GTK_NOTEBOOK_PAGE (list)->default_menu) return NULL; return GTK_NOTEBOOK_PAGE (list)->menu_label; } /** * gtk_notebook_set_menu_label: * @notebook: a #GtkNotebook * @child: the child widget * @menu_label: the menu label, or NULL for default * * Changes the menu label for the page containing @child. **/ void gtk_notebook_set_menu_label (GtkNotebook *notebook, GtkWidget *child, GtkWidget *menu_label) { GtkNotebookPage *page; GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (GTK_IS_WIDGET (child)); list = CHECK_FIND_CHILD (notebook, child); if (!list) return; page = list->data; if (page->menu_label) { if (notebook->menu) gtk_container_remove (GTK_CONTAINER (notebook->menu), page->menu_label->parent); if (!page->default_menu) g_object_unref (page->menu_label); } if (menu_label) { page->menu_label = menu_label; g_object_ref (page->menu_label); gtk_object_sink (GTK_OBJECT(page->menu_label)); page->default_menu = FALSE; } else page->default_menu = TRUE; if (notebook->menu) gtk_notebook_menu_item_create (notebook, list); gtk_widget_child_notify (child, "menu_label"); } /** * gtk_notebook_set_menu_label_text: * @notebook: a #GtkNotebook * @child: the child widget * @menu_text: the label text * * Creates a new label and sets it as the menu label of @child. **/ void gtk_notebook_set_menu_label_text (GtkNotebook *notebook, GtkWidget *child, const gchar *menu_text) { GtkWidget *menu_label = NULL; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); if (menu_text) menu_label = gtk_label_new (menu_text); gtk_notebook_set_menu_label (notebook, child, menu_label); gtk_widget_child_notify (child, "menu_label"); } /** * gtk_notebook_get_menu_label_text: * @notebook: a #GtkNotebook * @child: the child widget of a page of the notebook. * * Retrieves the text of the menu label for the page containing * @child. * * Returns value: the text of the tab label, or %NULL if the * widget does not have a menu label other than * the default menu label, or the menu label widget * is not a #GtkLabel. The string is owned by * the widget and must not be freed. **/ G_CONST_RETURN gchar * gtk_notebook_get_menu_label_text (GtkNotebook *notebook, GtkWidget *child) { GtkWidget *menu_label; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL); g_return_val_if_fail (GTK_IS_WIDGET (child), NULL); menu_label = gtk_notebook_get_menu_label (notebook, child); if (menu_label && GTK_IS_LABEL (menu_label)) return gtk_label_get_text (GTK_LABEL (menu_label)); else return NULL; } /* Helper function called when pages are reordered */ static void gtk_notebook_child_reordered (GtkNotebook *notebook, GtkNotebookPage *page) { if (notebook->menu) { GtkWidget *menu_item; menu_item = page->menu_label->parent; gtk_container_remove (GTK_CONTAINER (menu_item), page->menu_label); gtk_container_remove (GTK_CONTAINER (notebook->menu), menu_item); gtk_notebook_menu_item_create (notebook, g_list_find (notebook->children, page)); } gtk_notebook_update_tab_states (notebook); gtk_notebook_update_labels (notebook); } /** * gtk_notebook_set_tab_label_packing: * @notebook: a #GtkNotebook * @child: the child widget * @expand: whether to expand the bookmark or not * @fill: whether the bookmark should fill the allocated area or not * @pack_type: the position of the bookmark * * Sets the packing parameters for the tab label of the page * containing @child. See gtk_box_pack_start() for the exact meaning * of the parameters. **/ void gtk_notebook_set_tab_label_packing (GtkNotebook *notebook, GtkWidget *child, gboolean expand, gboolean fill, GtkPackType pack_type) { GtkNotebookPage *page; GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (GTK_IS_WIDGET (child)); list = CHECK_FIND_CHILD (notebook, child); if (!list) return; page = list->data; expand = expand != FALSE; fill = fill != FALSE; if (page->pack == pack_type && page->expand == expand && page->fill == fill) return; gtk_widget_freeze_child_notify (child); page->expand = expand; gtk_widget_child_notify (child, "tab_expand"); page->fill = fill; gtk_widget_child_notify (child, "tab_fill"); if (page->pack != pack_type) { page->pack = pack_type; gtk_notebook_child_reordered (notebook, page); } gtk_widget_child_notify (child, "tab_pack"); gtk_widget_child_notify (child, "position"); if (notebook->show_tabs) gtk_notebook_pages_allocate (notebook); gtk_widget_thaw_child_notify (child); } /** * gtk_notebook_query_tab_label_packing: * @notebook: a #GtkNotebook * @child: the page * @expand: location to store the expand value (or NULL) * @fill: location to store the fill value (or NULL) * @pack_type: location to store the pack_type (or NULL) * * Query the packing attributes for the tab label of the page * containing @child. **/ void gtk_notebook_query_tab_label_packing (GtkNotebook *notebook, GtkWidget *child, gboolean *expand, gboolean *fill, GtkPackType *pack_type) { GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (GTK_IS_WIDGET (child)); list = CHECK_FIND_CHILD (notebook, child); if (!list) return; if (expand) *expand = GTK_NOTEBOOK_PAGE (list)->expand; if (fill) *fill = GTK_NOTEBOOK_PAGE (list)->fill; if (pack_type) *pack_type = GTK_NOTEBOOK_PAGE (list)->pack; } /** * gtk_notebook_reorder_child: * @notebook: a #GtkNotebook * @child: the child to move * @position: the new position, or -1 to move to the end * * Reorders the page containing @child, so that it appears in position * @position. If @position is greater than or equal to the number of * children in the list or negative, @child will be moved to the end * of the list. **/ void gtk_notebook_reorder_child (GtkNotebook *notebook, GtkWidget *child, gint position) { GList *list, *new_list; GtkNotebookPage *page; gint old_pos; gint max_pos; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (GTK_IS_WIDGET (child)); list = CHECK_FIND_CHILD (notebook, child); if (!list) return; max_pos = g_list_length (notebook->children) - 1; if (position < 0 || position > max_pos) position = max_pos; old_pos = g_list_position (notebook->children, list); if (old_pos == position) return; page = list->data; notebook->children = g_list_delete_link (notebook->children, list); notebook->children = g_list_insert (notebook->children, page, position); new_list = g_list_nth (notebook->children, position); /* Fix up GList references in GtkNotebook structure */ if (notebook->first_tab == list) notebook->first_tab = new_list; if (notebook->focus_tab == list) notebook->focus_tab = new_list; gtk_widget_freeze_child_notify (child); /* Move around the menu items if necessary */ gtk_notebook_child_reordered (notebook, page); gtk_widget_child_notify (child, "tab_pack"); gtk_widget_child_notify (child, "position"); if (notebook->show_tabs) gtk_notebook_pages_allocate (notebook); gtk_widget_thaw_child_notify (child); }