/* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */ /* 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, see . */ /* * 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 "config.h" #include #include #include #include "gtknotebook.h" #include "gtkmain.h" #include "gtkmenu.h" #include "gtkmenuitem.h" #include "gtklabel.h" #include "gtkintl.h" #include "gtkmarshalers.h" #include "gtkbindings.h" #include "gtkprivate.h" #include "gtkdnd.h" #include "gtkbuildable.h" #include "gtktypebuiltins.h" #include "gtkwidgetpath.h" #include "gtkwidgetprivate.h" #include "a11y/gtknotebookaccessible.h" /** * SECTION:gtknotebook * @Short_description: A tabbed notebook container * @Title: GtkNotebook * @See_also: #GtkContainer * * The #GtkNotebook widget is a #GtkContainer whose children are pages that * can be switched between using tab labels along one edge. * * There are many configuration options for GtkNotebook. Among other * things, you can choose on which edge the tabs appear * (see gtk_notebook_set_tab_pos()), whether, if there are too many * tabs to fit the notebook should be made bigger or scrolling * arrows added (see gtk_notebook_set_scrollable()), and whether there * will be a popup menu allowing the users to switch pages. * (see gtk_notebook_popup_enable(), gtk_notebook_popup_disable()) * * # GtkNotebook as GtkBuildable * * The GtkNotebook implementation of the #GtkBuildable interface * supports placing children into tabs by specifying “tab” as the * “type” attribute of a element. Note that the content * of the tab must be created before the tab can be filled. * A tab child can be specified without specifying a * type attribute. * * To add a child widget in the notebooks action area, specify * "action-start" or “action-end” as the “type” attribute of the * element. * * An example of a UI definition fragment with GtkNotebook: * |[ * * * * Content * * * * * Tab * * * * ]| */ #define SCROLL_DELAY_FACTOR 5 #define SCROLL_THRESHOLD 12 #define DND_THRESHOLD_MULTIPLIER 4 #define FRAMES_PER_SECOND 45 #define MSECS_BETWEEN_UPDATES (1000 / FRAMES_PER_SECOND) #define TIMEOUT_INITIAL 500 #define TIMEOUT_REPEAT 50 #define TIMEOUT_EXPAND 500 typedef struct _GtkNotebookPage GtkNotebookPage; typedef enum { DRAG_OPERATION_NONE, DRAG_OPERATION_REORDER, DRAG_OPERATION_DETACH } GtkNotebookDragOperation; enum { ACTION_WIDGET_START, ACTION_WIDGET_END, N_ACTION_WIDGETS }; struct _GtkNotebookPrivate { GtkNotebookDragOperation operation; GtkNotebookPage *cur_page; GtkNotebookPage *detached_tab; GtkNotebookPage *prelight_tab; GtkTargetList *source_targets; GtkWidget *action_widget[N_ACTION_WIDGETS]; GtkWidget *dnd_window; GtkWidget *menu; GdkWindow *drag_window; GdkWindow *event_window; GList *children; GList *first_tab; /* The first tab visible (for scrolling notebooks) */ GList *focus_tab; gint drag_begin_x; gint drag_begin_y; gint drag_offset_x; gint drag_offset_y; gint drag_window_x; gint drag_window_y; gint mouse_x; gint mouse_y; gint pressed_button; GQuark group; guint dnd_timer; guint switch_tab_timer; GList *switch_tab; guint32 timer; guint32 timestamp; guint button : 2; guint child_has_focus : 1; guint click_child : 3; guint during_detach : 1; guint during_reorder : 1; guint focus_out : 1; /* Flag used by ::move-focus-out implementation */ guint has_scrolled : 1; guint in_child : 3; guint need_timer : 1; guint show_border : 1; guint show_tabs : 1; guint scrollable : 1; guint tab_pos : 2; guint has_before_previous : 1; guint has_before_next : 1; guint has_after_previous : 1; guint has_after_next : 1; }; enum { SWITCH_PAGE, FOCUS_TAB, SELECT_PAGE, CHANGE_CURRENT_PAGE, MOVE_FOCUS_OUT, REORDER_TAB, PAGE_REORDERED, PAGE_REMOVED, PAGE_ADDED, CREATE_WINDOW, LAST_SIGNAL }; enum { STEP_PREV, STEP_NEXT }; typedef enum { ARROW_NONE, ARROW_LEFT_BEFORE, ARROW_RIGHT_BEFORE, ARROW_LEFT_AFTER, ARROW_RIGHT_AFTER } GtkNotebookArrow; typedef enum { POINTER_BEFORE, POINTER_AFTER, POINTER_BETWEEN } GtkNotebookPointerPosition; #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_PAGE, PROP_ENABLE_POPUP, PROP_GROUP_NAME }; 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_REORDERABLE, CHILD_PROP_DETACHABLE }; #define GTK_NOTEBOOK_PAGE(_glist_) ((GtkNotebookPage *)((GList *)(_glist_))->data) /* some useful defines for calculating coords */ #define PAGE_LEFT_X(_page_) (((GtkNotebookPage *) (_page_))->allocation.x) #define PAGE_RIGHT_X(_page_) (((GtkNotebookPage *) (_page_))->allocation.x + ((GtkNotebookPage *) (_page_))->allocation.width) #define PAGE_MIDDLE_X(_page_) (((GtkNotebookPage *) (_page_))->allocation.x + ((GtkNotebookPage *) (_page_))->allocation.width / 2) #define PAGE_TOP_Y(_page_) (((GtkNotebookPage *) (_page_))->allocation.y) #define PAGE_BOTTOM_Y(_page_) (((GtkNotebookPage *) (_page_))->allocation.y + ((GtkNotebookPage *) (_page_))->allocation.height) #define PAGE_MIDDLE_Y(_page_) (((GtkNotebookPage *) (_page_))->allocation.y + ((GtkNotebookPage *) (_page_))->allocation.height / 2) #define NOTEBOOK_IS_TAB_LABEL_PARENT(_notebook_,_page_) (gtk_widget_get_parent (((GtkNotebookPage *) (_page_))->tab_label) == ((GtkWidget *) (_notebook_))) 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 reorderable : 1; guint detachable : 1; /* if true, the tab label was visible on last allocation; we track this so * that we know to redraw the tab area if a tab label was hidden then shown * without changing position */ guint tab_allocated_visible : 1; GtkRequisition requisition; GtkAllocation allocation; gulong mnemonic_activate_signal; gulong notify_visible_handler; }; static const GtkTargetEntry notebook_targets [] = { { "GTK_NOTEBOOK_TAB", GTK_TARGET_SAME_APP, 0 }, }; #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 gboolean gtk_notebook_select_page (GtkNotebook *notebook, gboolean move_focus); static gboolean gtk_notebook_focus_tab (GtkNotebook *notebook, GtkNotebookTab type); static gboolean gtk_notebook_change_current_page (GtkNotebook *notebook, gint offset); static void gtk_notebook_move_focus_out (GtkNotebook *notebook, GtkDirectionType direction_type); static gboolean gtk_notebook_reorder_tab (GtkNotebook *notebook, GtkDirectionType direction_type, gboolean move_to_last); static void gtk_notebook_remove_tab_label (GtkNotebook *notebook, GtkNotebookPage *page); static void gtk_notebook_set_tab_label_packing (GtkNotebook *notebook, GtkWidget *child, gboolean expand, gboolean fill); static void gtk_notebook_query_tab_label_packing (GtkNotebook *notebook, GtkWidget *child, gboolean *expand, gboolean *fill); /*** GObject Methods ***/ 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_destroy (GtkWidget *widget); 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_get_preferred_width (GtkWidget *widget, gint *minimum, gint *natural); static void gtk_notebook_get_preferred_height(GtkWidget *widget, gint *minimum, gint *natural); static void gtk_notebook_get_preferred_width_for_height (GtkWidget *widget, gint height, gint *minimum, gint *natural); static void gtk_notebook_get_preferred_height_for_width (GtkWidget *widget, gint width, gint *minimum, gint *natural); static void gtk_notebook_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static gboolean gtk_notebook_draw (GtkWidget *widget, cairo_t *cr); static gboolean gtk_notebook_button_press (GtkWidget *widget, GdkEventButton *event); static gboolean gtk_notebook_button_release (GtkWidget *widget, GdkEventButton *event); static gboolean gtk_notebook_popup_menu (GtkWidget *widget); static gboolean gtk_notebook_enter_notify (GtkWidget *widget, GdkEventCrossing *event); static gboolean gtk_notebook_leave_notify (GtkWidget *widget, GdkEventCrossing *event); static gboolean gtk_notebook_motion_notify (GtkWidget *widget, GdkEventMotion *event); static gboolean gtk_notebook_focus_in (GtkWidget *widget, GdkEventFocus *event); static gboolean gtk_notebook_focus_out (GtkWidget *widget, GdkEventFocus *event); static void gtk_notebook_grab_notify (GtkWidget *widget, gboolean was_grabbed); static void gtk_notebook_state_flags_changed (GtkWidget *widget, GtkStateFlags previous_state); static gboolean gtk_notebook_focus (GtkWidget *widget, GtkDirectionType direction); static void gtk_notebook_style_updated (GtkWidget *widget); /*** Drag and drop Methods ***/ static void gtk_notebook_drag_begin (GtkWidget *widget, GdkDragContext *context); static void gtk_notebook_drag_end (GtkWidget *widget, GdkDragContext *context); static gboolean gtk_notebook_drag_failed (GtkWidget *widget, GdkDragContext *context, GtkDragResult result); static gboolean gtk_notebook_drag_motion (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time); static void gtk_notebook_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time); static gboolean gtk_notebook_drag_drop (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time); static void gtk_notebook_drag_data_get (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *data, guint info, guint time); static void gtk_notebook_drag_data_received (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *data, guint info, guint time); /*** 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); static GtkWidgetPath * gtk_notebook_get_path_for_child (GtkContainer *container, GtkWidget *widget); /*** GtkNotebook Methods ***/ static gint gtk_notebook_real_insert_page (GtkNotebook *notebook, GtkWidget *child, GtkWidget *tab_label, GtkWidget *menu_label, gint position); static GtkNotebook *gtk_notebook_create_window (GtkNotebook *notebook, GtkWidget *page, gint x, gint y); /*** GtkNotebook Private Functions ***/ static void gtk_notebook_redraw_tabs (GtkNotebook *notebook); static void gtk_notebook_redraw_tabs_junction (GtkNotebook *notebook); static void gtk_notebook_redraw_arrows (GtkNotebook *notebook); static void gtk_notebook_real_remove (GtkNotebook *notebook, GList *list); static void gtk_notebook_update_labels (GtkNotebook *notebook); static gint gtk_notebook_timer (GtkNotebook *notebook); static void gtk_notebook_set_scroll_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 GList * gtk_notebook_search_page (GtkNotebook *notebook, GList *list, gint direction, gboolean find_visible); static void gtk_notebook_child_reordered (GtkNotebook *notebook, GtkNotebookPage *page); /*** GtkNotebook Drawing Functions ***/ static void gtk_notebook_paint (GtkWidget *widget, cairo_t *cr); static void gtk_notebook_draw_tab (GtkNotebook *notebook, GtkNotebookPage *page, cairo_t *cr, gboolean use_flags); static void gtk_notebook_draw_arrow (GtkNotebook *notebook, cairo_t *cr, GtkNotebookArrow arrow); /*** GtkNotebook Size Allocate Functions ***/ static void gtk_notebook_pages_allocate (GtkNotebook *notebook); static gboolean gtk_notebook_page_allocate (GtkNotebook *notebook, GtkNotebookPage *page); 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, GtkWidget *child, guint page_num); /*** GtkNotebook Page Switch Functions ***/ static void gtk_notebook_switch_page (GtkNotebook *notebook, GtkNotebookPage *page); 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_update_tab_states (GtkNotebook *notebook); static gboolean gtk_notebook_mnemonic_activate_switch_page (GtkWidget *child, gboolean overload, gpointer data); static gboolean focus_tabs_in (GtkNotebook *notebook); static gboolean focus_child_in (GtkNotebook *notebook, GtkDirectionType direction); static void stop_scrolling (GtkNotebook *notebook); static void do_detach_tab (GtkNotebook *from, GtkNotebook *to, GtkWidget *child, gint x, gint y); /* GtkBuildable */ static void gtk_notebook_buildable_init (GtkBuildableIface *iface); static void gtk_notebook_buildable_add_child (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *type); static guint notebook_signals[LAST_SIGNAL] = { 0 }; G_DEFINE_TYPE_WITH_CODE (GtkNotebook, gtk_notebook, GTK_TYPE_CONTAINER, G_ADD_PRIVATE (GtkNotebook) G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE, gtk_notebook_buildable_init)) static void add_tab_bindings (GtkBindingSet *binding_set, GdkModifierType modifiers, GtkDirectionType direction) { gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, modifiers, "move_focus_out", 1, GTK_TYPE_DIRECTION_TYPE, direction); gtk_binding_entry_add_signal (binding_set, GDK_KEY_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_KEY_Left + GDK_KEY_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 add_reorder_bindings (GtkBindingSet *binding_set, guint keysym, GtkDirectionType direction, gboolean move_to_last) { guint keypad_keysym = keysym - GDK_KEY_Left + GDK_KEY_KP_Left; gtk_binding_entry_add_signal (binding_set, keysym, GDK_MOD1_MASK, "reorder_tab", 2, GTK_TYPE_DIRECTION_TYPE, direction, G_TYPE_BOOLEAN, move_to_last); gtk_binding_entry_add_signal (binding_set, keypad_keysym, GDK_MOD1_MASK, "reorder_tab", 2, GTK_TYPE_DIRECTION_TYPE, direction, G_TYPE_BOOLEAN, move_to_last); } static gboolean gtk_object_handled_accumulator (GSignalInvocationHint *ihint, GValue *return_accu, const GValue *handler_return, gpointer dummy) { gboolean continue_emission; GObject *object; object = g_value_get_object (handler_return); g_value_set_object (return_accu, object); continue_emission = !object; return continue_emission; } static void gtk_notebook_compute_expand (GtkWidget *widget, gboolean *hexpand_p, gboolean *vexpand_p) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; gboolean hexpand; gboolean vexpand; GList *list; GtkNotebookPage *page; hexpand = FALSE; vexpand = FALSE; for (list = priv->children; list; list = list->next) { page = list->data; hexpand = hexpand || gtk_widget_compute_expand (page->child, GTK_ORIENTATION_HORIZONTAL); vexpand = vexpand || gtk_widget_compute_expand (page->child, GTK_ORIENTATION_VERTICAL); if (hexpand & vexpand) break; } *hexpand_p = hexpand; *vexpand_p = vexpand; } static void gtk_notebook_class_init (GtkNotebookClass *class) { GObjectClass *gobject_class = G_OBJECT_CLASS (class); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class); GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class); GtkBindingSet *binding_set; gobject_class->set_property = gtk_notebook_set_property; gobject_class->get_property = gtk_notebook_get_property; widget_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->get_preferred_width = gtk_notebook_get_preferred_width; widget_class->get_preferred_height = gtk_notebook_get_preferred_height; widget_class->get_preferred_width_for_height = gtk_notebook_get_preferred_width_for_height; widget_class->get_preferred_height_for_width = gtk_notebook_get_preferred_height_for_width; widget_class->size_allocate = gtk_notebook_size_allocate; widget_class->draw = gtk_notebook_draw; widget_class->button_press_event = gtk_notebook_button_press; widget_class->button_release_event = gtk_notebook_button_release; widget_class->popup_menu = gtk_notebook_popup_menu; 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_flags_changed = gtk_notebook_state_flags_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_updated = gtk_notebook_style_updated; widget_class->drag_begin = gtk_notebook_drag_begin; widget_class->drag_end = gtk_notebook_drag_end; widget_class->drag_motion = gtk_notebook_drag_motion; widget_class->drag_leave = gtk_notebook_drag_leave; widget_class->drag_drop = gtk_notebook_drag_drop; widget_class->drag_data_get = gtk_notebook_drag_data_get; widget_class->drag_data_received = gtk_notebook_drag_data_received; widget_class->drag_failed = gtk_notebook_drag_failed; widget_class->compute_expand = gtk_notebook_compute_expand; 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; container_class->get_path_for_child = gtk_notebook_get_path_for_child; class->switch_page = gtk_notebook_real_switch_page; class->insert_page = gtk_notebook_real_insert_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; class->reorder_tab = gtk_notebook_reorder_tab; class->create_window = gtk_notebook_create_window; g_object_class_install_property (gobject_class, PROP_PAGE, g_param_spec_int ("page", P_("Page"), P_("The index of the current page"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); 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, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); 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"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); 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"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); 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, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); 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, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkNotebook:group-name: * * Group name for tab drag and drop. * * Since: 2.24 */ g_object_class_install_property (gobject_class, PROP_GROUP_NAME, g_param_spec_string ("group-name", P_("Group Name"), P_("Group name for tab drag and drop"), NULL, GTK_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 child's tab label"), NULL, GTK_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 child's menu entry"), NULL, GTK_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, GTK_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 child's tab"), FALSE, GTK_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 child's tab should fill the allocated area"), TRUE, GTK_PARAM_READWRITE)); gtk_container_class_install_child_property (container_class, CHILD_PROP_REORDERABLE, g_param_spec_boolean ("reorderable", P_("Tab reorderable"), P_("Whether the tab is reorderable by user action"), FALSE, GTK_PARAM_READWRITE)); gtk_container_class_install_child_property (container_class, CHILD_PROP_DETACHABLE, g_param_spec_boolean ("detachable", P_("Tab detachable"), P_("Whether the tab is detachable"), FALSE, GTK_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, GTK_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, GTK_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, GTK_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, GTK_PARAM_READABLE)); /** * GtkNotebook:tab-overlap: * * The “tab-overlap” property defines size of tab overlap * area. * * Since: 2.10 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_int ("tab-overlap", P_("Tab overlap"), P_("Size of tab overlap area"), G_MININT, G_MAXINT, 2, GTK_PARAM_READABLE)); /** * GtkNotebook:tab-curvature: * * The “tab-curvature” property defines size of tab curvature. * * Since: 2.10 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_int ("tab-curvature", P_("Tab curvature"), P_("Size of tab curvature"), 0, G_MAXINT, 1, GTK_PARAM_READABLE)); /** * GtkNotebook:arrow-spacing: * * The "arrow-spacing" property defines the spacing between the scroll * arrows and the tabs. * * Since: 2.10 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_int ("arrow-spacing", P_("Arrow spacing"), P_("Scroll arrow spacing"), 0, G_MAXINT, 0, GTK_PARAM_READABLE)); /** * GtkNotebook:initial-gap: * * The "initial-gap" property defines the minimum size for the initial * gap between the first tab. * * Since: 3.2 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_int ("initial-gap", P_("Initial gap"), P_("Initial gap before the first tab"), 0, G_MAXINT, 0, GTK_PARAM_READABLE)); /** * GtkNotebook:has-tab-gap: * * The "has-tab-gap" property defines whether the active tab is draw * with a gap at the bottom. When %TRUE the theme engine uses * gtk_render_extension to draw the active tab. When %FALSE * gtk_render_background and gtk_render_frame are used. * * Since: 3.12 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_boolean ("has-tab-gap", P_("Tab gap"), P_("Active tab is drawn with a gap at the bottom"), TRUE, GTK_PARAM_READABLE)); /** * GtkNotebook::switch-page: * @notebook: the object which received the signal. * @page: the new current page * @page_num: the index of the page * * Emitted when the user or a function changes the current page. */ notebook_signals[SWITCH_PAGE] = g_signal_new (I_("switch-page"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkNotebookClass, switch_page), NULL, NULL, _gtk_marshal_VOID__OBJECT_UINT, G_TYPE_NONE, 2, GTK_TYPE_WIDGET, G_TYPE_UINT); notebook_signals[FOCUS_TAB] = g_signal_new (I_("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 (I_("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 (I_("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_BOOLEAN__INT, G_TYPE_BOOLEAN, 1, G_TYPE_INT); notebook_signals[MOVE_FOCUS_OUT] = g_signal_new (I_("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); notebook_signals[REORDER_TAB] = g_signal_new (I_("reorder-tab"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkNotebookClass, reorder_tab), NULL, NULL, _gtk_marshal_BOOLEAN__ENUM_BOOLEAN, G_TYPE_BOOLEAN, 2, GTK_TYPE_DIRECTION_TYPE, G_TYPE_BOOLEAN); /** * GtkNotebook::page-reordered: * @notebook: the #GtkNotebook * @child: the child #GtkWidget affected * @page_num: the new page number for @child * * the ::page-reordered signal is emitted in the notebook * right after a page has been reordered. * * Since: 2.10 */ notebook_signals[PAGE_REORDERED] = g_signal_new (I_("page-reordered"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkNotebookClass, page_reordered), NULL, NULL, _gtk_marshal_VOID__OBJECT_UINT, G_TYPE_NONE, 2, GTK_TYPE_WIDGET, G_TYPE_UINT); /** * GtkNotebook::page-removed: * @notebook: the #GtkNotebook * @child: the child #GtkWidget affected * @page_num: the @child page number * * the ::page-removed signal is emitted in the notebook * right after a page is removed from the notebook. * * Since: 2.10 */ notebook_signals[PAGE_REMOVED] = g_signal_new (I_("page-removed"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkNotebookClass, page_removed), NULL, NULL, _gtk_marshal_VOID__OBJECT_UINT, G_TYPE_NONE, 2, GTK_TYPE_WIDGET, G_TYPE_UINT); /** * GtkNotebook::page-added: * @notebook: the #GtkNotebook * @child: the child #GtkWidget affected * @page_num: the new page number for @child * * the ::page-added signal is emitted in the notebook * right after a page is added to the notebook. * * Since: 2.10 */ notebook_signals[PAGE_ADDED] = g_signal_new (I_("page-added"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkNotebookClass, page_added), NULL, NULL, _gtk_marshal_VOID__OBJECT_UINT, G_TYPE_NONE, 2, GTK_TYPE_WIDGET, G_TYPE_UINT); /** * GtkNotebook::create-window: * @notebook: the #GtkNotebook emitting the signal * @page: the tab of @notebook that is being detached * @x: the X coordinate where the drop happens * @y: the Y coordinate where the drop happens * * The ::create-window signal is emitted when a detachable * tab is dropped on the root window. * * A handler for this signal can create a window containing * a notebook where the tab will be attached. It is also * responsible for moving/resizing the window and adding the * necessary properties to the notebook (e.g. the * #GtkNotebook:group-name ). * * Returns: (transfer none): a #GtkNotebook that @page should be * added to, or %NULL. * * Since: 2.12 */ notebook_signals[CREATE_WINDOW] = g_signal_new (I_("create-window"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkNotebookClass, create_window), gtk_object_handled_accumulator, NULL, _gtk_marshal_OBJECT__OBJECT_INT_INT, GTK_TYPE_NOTEBOOK, 3, GTK_TYPE_WIDGET, G_TYPE_INT, G_TYPE_INT); binding_set = gtk_binding_set_by_class (class); gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, 0, "select-page", 1, G_TYPE_BOOLEAN, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, 0, "select-page", 1, G_TYPE_BOOLEAN, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Home, 0, "focus-tab", 1, GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_FIRST); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Home, 0, "focus-tab", 1, GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_FIRST); gtk_binding_entry_add_signal (binding_set, GDK_KEY_End, 0, "focus-tab", 1, GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_LAST); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_End, 0, "focus-tab", 1, GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_LAST); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Page_Up, GDK_CONTROL_MASK, "change-current-page", 1, G_TYPE_INT, -1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Page_Down, GDK_CONTROL_MASK, "change-current-page", 1, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Page_Up, GDK_CONTROL_MASK | GDK_MOD1_MASK, "change-current-page", 1, G_TYPE_INT, -1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Page_Down, GDK_CONTROL_MASK | GDK_MOD1_MASK, "change-current-page", 1, G_TYPE_INT, 1); add_arrow_bindings (binding_set, GDK_KEY_Up, GTK_DIR_UP); add_arrow_bindings (binding_set, GDK_KEY_Down, GTK_DIR_DOWN); add_arrow_bindings (binding_set, GDK_KEY_Left, GTK_DIR_LEFT); add_arrow_bindings (binding_set, GDK_KEY_Right, GTK_DIR_RIGHT); add_reorder_bindings (binding_set, GDK_KEY_Up, GTK_DIR_UP, FALSE); add_reorder_bindings (binding_set, GDK_KEY_Down, GTK_DIR_DOWN, FALSE); add_reorder_bindings (binding_set, GDK_KEY_Left, GTK_DIR_LEFT, FALSE); add_reorder_bindings (binding_set, GDK_KEY_Right, GTK_DIR_RIGHT, FALSE); add_reorder_bindings (binding_set, GDK_KEY_Home, GTK_DIR_LEFT, TRUE); add_reorder_bindings (binding_set, GDK_KEY_Home, GTK_DIR_UP, TRUE); add_reorder_bindings (binding_set, GDK_KEY_End, GTK_DIR_RIGHT, TRUE); add_reorder_bindings (binding_set, GDK_KEY_End, GTK_DIR_DOWN, TRUE); 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); gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_NOTEBOOK_ACCESSIBLE); } static void gtk_notebook_init (GtkNotebook *notebook) { GtkNotebookPrivate *priv; GtkStyleContext *context; gtk_widget_set_can_focus (GTK_WIDGET (notebook), TRUE); gtk_widget_set_has_window (GTK_WIDGET (notebook), FALSE); notebook->priv = gtk_notebook_get_instance_private (notebook); priv = notebook->priv; priv->cur_page = NULL; priv->children = NULL; priv->first_tab = NULL; priv->focus_tab = NULL; priv->event_window = NULL; priv->menu = NULL; priv->show_tabs = TRUE; priv->show_border = TRUE; priv->tab_pos = GTK_POS_TOP; priv->scrollable = FALSE; priv->in_child = 0; priv->click_child = 0; priv->button = 0; priv->need_timer = 0; priv->child_has_focus = FALSE; priv->focus_out = FALSE; priv->has_before_previous = 1; priv->has_before_next = 0; priv->has_after_previous = 0; priv->has_after_next = 1; priv->group = 0; priv->pressed_button = -1; priv->dnd_timer = 0; priv->switch_tab_timer = 0; priv->source_targets = gtk_target_list_new (notebook_targets, G_N_ELEMENTS (notebook_targets)); priv->operation = DRAG_OPERATION_NONE; priv->detached_tab = NULL; priv->during_detach = FALSE; priv->has_scrolled = FALSE; gtk_drag_dest_set (GTK_WIDGET (notebook), 0, notebook_targets, G_N_ELEMENTS (notebook_targets), GDK_ACTION_MOVE); gtk_drag_dest_set_track_motion (GTK_WIDGET (notebook), TRUE); context = gtk_widget_get_style_context (GTK_WIDGET (notebook)); gtk_style_context_add_class (context, GTK_STYLE_CLASS_NOTEBOOK); } static void gtk_notebook_buildable_init (GtkBuildableIface *iface) { iface->add_child = gtk_notebook_buildable_add_child; } static void gtk_notebook_buildable_add_child (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *type) { GtkNotebook *notebook = GTK_NOTEBOOK (buildable); if (type && strcmp (type, "tab") == 0) { GtkWidget * page; page = gtk_notebook_get_nth_page (notebook, -1); /* To set the tab label widget, we must have already a child * inside the tab container. */ g_assert (page != NULL); /* warn when Glade tries to overwrite label */ if (gtk_notebook_get_tab_label (notebook, page)) g_warning ("Overriding tab label for notebook"); gtk_notebook_set_tab_label (notebook, page, GTK_WIDGET (child)); } else if (type && strcmp (type, "action-start") == 0) { gtk_notebook_set_action_widget (notebook, GTK_WIDGET (child), GTK_PACK_START); } else if (type && strcmp (type, "action-end") == 0) { gtk_notebook_set_action_widget (notebook, GTK_WIDGET (child), GTK_PACK_END); } else if (!type) gtk_notebook_append_page (notebook, GTK_WIDGET (child), NULL); else GTK_BUILDER_WARN_INVALID_CHILD_TYPE (notebook, type); } static gboolean gtk_notebook_select_page (GtkNotebook *notebook, gboolean move_focus) { GtkNotebookPrivate *priv = notebook->priv; if (gtk_widget_is_focus (GTK_WIDGET (notebook)) && priv->show_tabs) { gtk_notebook_page_select (notebook, move_focus); return TRUE; } else return FALSE; } static gboolean gtk_notebook_focus_tab (GtkNotebook *notebook, GtkNotebookTab type) { GtkNotebookPrivate *priv = notebook->priv; GList *list; if (gtk_widget_is_focus (GTK_WIDGET (notebook)) && priv->show_tabs) { 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 gboolean gtk_notebook_change_current_page (GtkNotebook *notebook, gint offset) { GtkNotebookPrivate *priv = notebook->priv; GList *current = NULL; if (!priv->show_tabs) return FALSE; if (priv->cur_page) current = g_list_find (priv->children, priv->cur_page); while (offset != 0) { current = gtk_notebook_search_page (notebook, current, offset < 0 ? STEP_PREV : STEP_NEXT, TRUE); if (!current) { current = gtk_notebook_search_page (notebook, NULL, offset < 0 ? STEP_PREV : STEP_NEXT, TRUE); } offset += offset < 0 ? 1 : -1; } if (current) gtk_notebook_switch_page (notebook, current->data); else gtk_widget_error_bell (GTK_WIDGET (notebook)); return TRUE; } static GtkDirectionType get_effective_direction (GtkNotebook *notebook, GtkDirectionType direction) { GtkNotebookPrivate *priv = notebook->priv; /* 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][priv->tab_pos][direction]; } static gint get_effective_tab_pos (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; if (gtk_widget_get_direction (GTK_WIDGET (notebook)) == GTK_TEXT_DIR_RTL) { switch (priv->tab_pos) { case GTK_POS_LEFT: return GTK_POS_RIGHT; case GTK_POS_RIGHT: return GTK_POS_LEFT; default: ; } } return priv->tab_pos; } static gint get_tab_gap_pos (GtkNotebook *notebook) { gint tab_pos = get_effective_tab_pos (notebook); gint gap_side = GTK_POS_BOTTOM; 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; } return gap_side; } static void gtk_notebook_move_focus_out (GtkNotebook *notebook, GtkDirectionType direction_type) { GtkNotebookPrivate *priv = notebook->priv; GtkDirectionType effective_direction = get_effective_direction (notebook, direction_type); GtkWidget *toplevel; if (gtk_container_get_focus_child (GTK_CONTAINER (notebook)) && 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_is_toplevel (toplevel)) return; g_object_ref (notebook); priv->focus_out = TRUE; g_signal_emit_by_name (toplevel, "move-focus", direction_type); priv->focus_out = FALSE; g_object_unref (notebook); } static gint reorder_tab (GtkNotebook *notebook, GList *position, GList *tab) { GtkNotebookPrivate *priv = notebook->priv; GList *elem; if (position == tab) return g_list_position (priv->children, tab); /* check that we aren't inserting the tab in the * same relative position, taking packing into account */ elem = (position) ? position->prev : g_list_last (priv->children); if (elem == tab) return g_list_position (priv->children, tab); /* now actually reorder the tab */ if (priv->first_tab == tab) priv->first_tab = gtk_notebook_search_page (notebook, priv->first_tab, STEP_NEXT, TRUE); priv->children = g_list_remove_link (priv->children, tab); if (!position) elem = g_list_last (priv->children); else { elem = position->prev; position->prev = tab; } if (elem) elem->next = tab; else priv->children = tab; tab->prev = elem; tab->next = position; return g_list_position (priv->children, tab); } static gboolean gtk_notebook_reorder_tab (GtkNotebook *notebook, GtkDirectionType direction_type, gboolean move_to_last) { GtkNotebookPrivate *priv = notebook->priv; GtkDirectionType effective_direction = get_effective_direction (notebook, direction_type); GList *last, *child; gint page_num; if (!gtk_widget_is_focus (GTK_WIDGET (notebook)) || !priv->show_tabs) return FALSE; if (!priv->cur_page || !priv->cur_page->reorderable) return FALSE; if (effective_direction != GTK_DIR_LEFT && effective_direction != GTK_DIR_RIGHT) return FALSE; if (move_to_last) { child = priv->focus_tab; do { last = child; child = gtk_notebook_search_page (notebook, last, (effective_direction == GTK_DIR_RIGHT) ? STEP_NEXT : STEP_PREV, TRUE); } while (child); child = last; } else child = gtk_notebook_search_page (notebook, priv->focus_tab, (effective_direction == GTK_DIR_RIGHT) ? STEP_NEXT : STEP_PREV, TRUE); if (!child || child->data == priv->cur_page) return FALSE; if (effective_direction == GTK_DIR_RIGHT) page_num = reorder_tab (notebook, child->next, priv->focus_tab); else page_num = reorder_tab (notebook, child, priv->focus_tab); gtk_notebook_pages_allocate (notebook); g_signal_emit (notebook, notebook_signals[PAGE_REORDERED], 0, ((GtkNotebookPage *) priv->focus_tab->data)->child, page_num); return TRUE; } /** * gtk_notebook_new: * * Creates a new #GtkNotebook widget with no pages. * Returns: the newly created #GtkNotebook */ GtkWidget* gtk_notebook_new (void) { return g_object_new (GTK_TYPE_NOTEBOOK, NULL); } /* Private GObject Methods : * * gtk_notebook_set_property * gtk_notebook_get_property */ 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_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_GROUP_NAME: gtk_notebook_set_group_name (notebook, g_value_get_string (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_notebook_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkNotebook *notebook = GTK_NOTEBOOK (object); GtkNotebookPrivate *priv = notebook->priv; switch (prop_id) { case PROP_SHOW_TABS: g_value_set_boolean (value, priv->show_tabs); break; case PROP_SHOW_BORDER: g_value_set_boolean (value, priv->show_border); break; case PROP_SCROLLABLE: g_value_set_boolean (value, priv->scrollable); break; case PROP_ENABLE_POPUP: g_value_set_boolean (value, priv->menu != NULL); 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, priv->tab_pos); break; case PROP_GROUP_NAME: g_value_set_string (value, gtk_notebook_get_group_name (notebook)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } /* Private GtkWidget Methods : * * gtk_notebook_destroy * gtk_notebook_map * gtk_notebook_unmap * gtk_notebook_realize * gtk_notebook_size_request * gtk_notebook_size_allocate * gtk_notebook_draw * gtk_notebook_scroll * gtk_notebook_button_press * gtk_notebook_button_release * gtk_notebook_popup_menu * gtk_notebook_enter_notify * gtk_notebook_leave_notify * gtk_notebook_motion_notify * gtk_notebook_focus_in * gtk_notebook_focus_out * gtk_notebook_style_updated * gtk_notebook_drag_begin * gtk_notebook_drag_end * gtk_notebook_drag_failed * gtk_notebook_drag_motion * gtk_notebook_drag_drop * gtk_notebook_drag_data_get * gtk_notebook_drag_data_received */ static void remove_switch_tab_timer (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; if (priv->switch_tab_timer) { g_source_remove (priv->switch_tab_timer); priv->switch_tab_timer = 0; } } static void gtk_notebook_destroy (GtkWidget *widget) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; if (priv->action_widget[GTK_PACK_START]) { gtk_widget_unparent (priv->action_widget[GTK_PACK_START]); priv->action_widget[GTK_PACK_START] = NULL; } if (priv->action_widget[GTK_PACK_END]) { gtk_widget_unparent (priv->action_widget[GTK_PACK_END]); priv->action_widget[GTK_PACK_END] = NULL; } if (priv->menu) gtk_notebook_popup_disable (notebook); if (priv->source_targets) { gtk_target_list_unref (priv->source_targets); priv->source_targets = NULL; } remove_switch_tab_timer (notebook); GTK_WIDGET_CLASS (gtk_notebook_parent_class)->destroy (widget); } static gboolean gtk_notebook_get_event_window_position (GtkNotebook *notebook, GdkRectangle *rectangle) { GtkNotebookPrivate *priv = notebook->priv; GtkAllocation allocation, action_allocation; GtkWidget *widget = GTK_WIDGET (notebook); guint border_width = gtk_container_get_border_width (GTK_CONTAINER (notebook)); GtkNotebookPage *visible_page = NULL; GList *tmp_list; gint tab_pos = get_effective_tab_pos (notebook); gboolean is_rtl; gint i; for (tmp_list = priv->children; tmp_list; tmp_list = tmp_list->next) { GtkNotebookPage *page = tmp_list->data; if (gtk_widget_get_visible (page->child)) { visible_page = page; break; } } if (priv->show_tabs && visible_page) { if (rectangle) { gtk_widget_get_allocation (widget, &allocation); is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL; rectangle->x = allocation.x + border_width; rectangle->y = allocation.y + border_width; switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: rectangle->width = allocation.width - 2 * border_width; rectangle->height = visible_page->requisition.height; if (tab_pos == GTK_POS_BOTTOM) rectangle->y += allocation.height - 2 * border_width - rectangle->height; for (i = 0; i < N_ACTION_WIDGETS; i++) { if (priv->action_widget[i] && gtk_widget_get_visible (priv->action_widget[i])) { gtk_widget_get_allocation (priv->action_widget[i], &action_allocation); rectangle->width -= action_allocation.width; if ((!is_rtl && i == ACTION_WIDGET_START) || (is_rtl && i == ACTION_WIDGET_END)) rectangle->x += action_allocation.width; } } break; case GTK_POS_LEFT: case GTK_POS_RIGHT: rectangle->width = visible_page->requisition.width; rectangle->height = allocation.height - 2 * border_width; if (tab_pos == GTK_POS_RIGHT) rectangle->x += allocation.width - 2 * border_width - rectangle->width; for (i = 0; i < N_ACTION_WIDGETS; i++) { if (priv->action_widget[i] && gtk_widget_get_visible (priv->action_widget[i])) { gtk_widget_get_allocation (priv->action_widget[i], &action_allocation); rectangle->height -= action_allocation.height; if (i == ACTION_WIDGET_START) rectangle->y += action_allocation.height; } } 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 = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; GList *children; gint i; gtk_widget_set_mapped (widget, TRUE); if (priv->cur_page && gtk_widget_get_visible (priv->cur_page->child) && !gtk_widget_get_mapped (priv->cur_page->child)) gtk_widget_map (priv->cur_page->child); for (i = 0; i < N_ACTION_WIDGETS; i++) { if (priv->action_widget[i] && gtk_widget_get_visible (priv->action_widget[i]) && gtk_widget_get_child_visible (priv->action_widget[i]) && !gtk_widget_get_mapped (priv->action_widget[i])) gtk_widget_map (priv->action_widget[i]); } if (priv->scrollable) gtk_notebook_pages_allocate (notebook); else { children = priv->children; while (children) { page = children->data; children = children->next; if (page->tab_label && gtk_widget_get_visible (page->tab_label) && !gtk_widget_get_mapped (page->tab_label)) gtk_widget_map (page->tab_label); } } if (gtk_notebook_get_event_window_position (notebook, NULL)) gdk_window_show_unraised (priv->event_window); } static void gtk_notebook_unmap (GtkWidget *widget) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; stop_scrolling (notebook); gtk_widget_set_mapped (widget, FALSE); gdk_window_hide (priv->event_window); GTK_WIDGET_CLASS (gtk_notebook_parent_class)->unmap (widget); } static void gtk_notebook_realize (GtkWidget *widget) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; GdkWindow *window; GdkWindowAttr attributes; gint attributes_mask; GdkRectangle event_window_pos; gtk_widget_set_realized (widget, TRUE); gtk_notebook_get_event_window_position (notebook, &event_window_pos); window = gtk_widget_get_parent_window (widget); gtk_widget_set_window (widget, window); g_object_ref (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_POINTER_MOTION_MASK | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK); attributes_mask = GDK_WA_X | GDK_WA_Y; priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gtk_widget_register_window (widget, priv->event_window); } static void gtk_notebook_unrealize (GtkWidget *widget) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; gtk_widget_unregister_window (widget, priv->event_window); gdk_window_destroy (priv->event_window); priv->event_window = NULL; if (priv->drag_window) { gtk_widget_unregister_window (widget, priv->drag_window); gdk_window_destroy (priv->drag_window); priv->drag_window = NULL; } GTK_WIDGET_CLASS (gtk_notebook_parent_class)->unrealize (widget); } static GtkRegionFlags _gtk_notebook_get_tab_flags (GtkNotebook *notebook, GtkNotebookPage *page) { GtkNotebookPrivate *priv = notebook->priv; gint i = 0, page_num = -1; GtkRegionFlags flags = 0; gboolean is_last = FALSE; GList *pages; for (pages = priv->children; pages; pages = pages->next) { GtkNotebookPage *p = pages->data; if (!p->tab_label || !gtk_widget_get_visible (p->tab_label)) continue; i++; /* No need to keep counting tabs after it */ if (page == p) { page_num = i; is_last = pages->next == NULL; break; } } if (page_num < 0) return 0; if ((page_num) % 2 == 0) flags |= GTK_REGION_EVEN; else flags |= GTK_REGION_ODD; if (page_num == 1) flags |= GTK_REGION_FIRST; if (is_last) flags |= GTK_REGION_LAST; return flags; } static GtkStateFlags notebook_tab_prepare_style_context (GtkNotebook *notebook, GtkNotebookPage *page, GtkStyleContext *context, gboolean use_flags) { gint tab_pos = get_effective_tab_pos (notebook); GtkRegionFlags flags = 0; GtkStateFlags state = gtk_style_context_get_state (context); if (page != NULL) { if (page == notebook->priv->cur_page) state |= GTK_STATE_FLAG_ACTIVE; if (page == notebook->priv->prelight_tab) state |= GTK_STATE_FLAG_PRELIGHT; if (page->reorderable) gtk_style_context_add_class (context, "reorderable-page"); } gtk_style_context_set_state (context, state); if (use_flags && (page != NULL)) flags = _gtk_notebook_get_tab_flags (notebook, page); gtk_style_context_add_region (context, GTK_STYLE_REGION_TAB, flags); switch (tab_pos) { case GTK_POS_TOP: gtk_style_context_add_class (context, GTK_STYLE_CLASS_TOP); break; case GTK_POS_BOTTOM: gtk_style_context_add_class (context, GTK_STYLE_CLASS_BOTTOM); break; case GTK_POS_LEFT: gtk_style_context_add_class (context, GTK_STYLE_CLASS_LEFT); break; case GTK_POS_RIGHT: gtk_style_context_add_class (context, GTK_STYLE_CLASS_RIGHT); break; default: break; } return state; } static void gtk_notebook_get_preferred_tabs_size (GtkNotebook *notebook, GtkRequisition *requisition) { GtkNotebookPrivate *priv; GtkWidget *widget; gint tab_width = 0; gint tab_height = 0; gint tab_max = 0; gint padding; gint i; gint action_width = 0; gint action_height = 0; guint vis_pages = 0; GList *children; GtkNotebookPage *page; GtkRequisition action_widget_requisition[2] = { { 0 }, { 0 } }; GtkRequisition child_requisition; GtkStyleContext *context; gint tab_overlap; gint tab_curvature; gint arrow_spacing; gint initial_gap; gint scroll_arrow_hlength; gint scroll_arrow_vlength; priv = notebook->priv; widget = GTK_WIDGET (notebook); context = gtk_widget_get_style_context (widget); gtk_widget_style_get (widget, "initial-gap", &initial_gap, "tab-overlap", &tab_overlap, "tab-curvature", &tab_curvature, "arrow-spacing", &arrow_spacing, "scroll-arrow-hlength", &scroll_arrow_hlength, "scroll-arrow-vlength", &scroll_arrow_vlength, NULL); for (children = priv->children; children; children = children->next) { page = children->data; if (gtk_widget_get_visible (page->child)) { GtkBorder tab_padding; GtkStateFlags state; vis_pages++; if (!gtk_widget_get_visible (page->tab_label)) gtk_widget_show (page->tab_label); gtk_widget_get_preferred_size (page->tab_label, &child_requisition, NULL); /* Get border/padding for tab */ gtk_style_context_save (context); state = notebook_tab_prepare_style_context (notebook, page, context, TRUE); gtk_style_context_get_padding (context, state, &tab_padding); gtk_style_context_restore (context); page->requisition.width = child_requisition.width + tab_padding.left + tab_padding.right; page->requisition.height = child_requisition.height + tab_padding.top + tab_padding.bottom; switch (priv->tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: 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: tab_width = MAX (tab_width, page->requisition.width); tab_max = MAX (tab_max, page->requisition.height); break; } } else if (gtk_widget_get_visible (page->tab_label)) gtk_widget_hide (page->tab_label); } children = priv->children; if (vis_pages) { for (i = 0; i < N_ACTION_WIDGETS; i++) { if (priv->action_widget[i]) { gtk_widget_get_preferred_size (priv->action_widget[i], &action_widget_requisition[i], NULL); } } switch (priv->tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: if (tab_height == 0) break; if (priv->scrollable) tab_height = MAX (tab_height, scroll_arrow_hlength); tab_height = MAX (tab_height, action_widget_requisition[ACTION_WIDGET_START].height); tab_height = MAX (tab_height, action_widget_requisition[ACTION_WIDGET_END].height); padding = 2 * tab_curvature - tab_overlap; tab_max += padding; while (children) { page = children->data; children = children->next; if (!gtk_widget_get_visible (page->child)) continue; page->requisition.width += padding; tab_width += page->requisition.width; page->requisition.height = tab_height; } if (priv->scrollable) tab_width = MIN (tab_width, tab_max + 2 * (scroll_arrow_hlength + arrow_spacing)); action_width += action_widget_requisition[ACTION_WIDGET_START].width; action_width += action_widget_requisition[ACTION_WIDGET_END].width; requisition->width = tab_width + tab_overlap + action_width + 2 * initial_gap; requisition->height = tab_height; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: if (tab_width == 0) break; if (priv->scrollable) tab_width = MAX (tab_width, arrow_spacing + 2 * scroll_arrow_vlength); tab_width = MAX (tab_width, action_widget_requisition[ACTION_WIDGET_START].width); tab_width = MAX (tab_width, action_widget_requisition[ACTION_WIDGET_END].width); padding = 2 * tab_curvature - tab_overlap; tab_max += padding; while (children) { page = children->data; children = children->next; if (!gtk_widget_get_visible (page->child)) continue; page->requisition.width = tab_width; page->requisition.height += padding; tab_height += page->requisition.height; } if (priv->scrollable) tab_height = MIN (tab_height, tab_max + (2 * scroll_arrow_vlength + arrow_spacing + initial_gap)); action_height += action_widget_requisition[ACTION_WIDGET_START].height; action_height += action_widget_requisition[ACTION_WIDGET_END].height; requisition->height = tab_height + tab_overlap + action_height + 2 * initial_gap; requisition->height = MAX (requisition->height, tab_max + tab_overlap); requisition->width = tab_width; break; default: g_assert_not_reached (); requisition->width = 0; requisition->height = 0; } } else { requisition->width = 0; requisition->height = 0; } } static void get_padding_and_border (GtkNotebook *notebook, GtkBorder *border) { GtkStyleContext *context; context = gtk_widget_get_style_context (GTK_WIDGET (notebook)); gtk_style_context_get_padding (context, 0, border); if (notebook->priv->show_border || notebook->priv->show_tabs) { GtkBorder tmp; gtk_style_context_get_border (context, 0, &tmp); border->top += tmp.top; border->right += tmp.right; border->bottom += tmp.bottom; border->left += tmp.left; } } static void gtk_notebook_size_request (GtkWidget *widget, GtkOrientation orientation, gint size, gint *minimum, gint *natural) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; GList *children; gint child_minimum, child_natural; gboolean switch_page = FALSE; gint vis_pages; guint border_width; *minimum = 0; *natural = 0; for (children = priv->children, vis_pages = 0; children; children = children->next) { GtkWidget *parent; page = children->data; if (gtk_widget_get_visible (page->child)) { vis_pages++; _gtk_widget_get_preferred_size_for_size (page->child, orientation, size, &child_minimum, &child_natural, NULL, NULL); *minimum = MAX (*minimum, child_minimum); *natural = MAX (*natural, child_natural); if (priv->menu && page->menu_label) { parent = gtk_widget_get_parent (page->menu_label); if (parent && !gtk_widget_get_visible (parent)) gtk_widget_show (parent); } } else { if (page == priv->cur_page) switch_page = TRUE; if (priv->menu && page->menu_label) { parent = gtk_widget_get_parent (page->menu_label); if (parent && gtk_widget_get_visible (parent)) gtk_widget_hide (parent); } } } if (priv->show_border || priv->show_tabs) { GtkBorder notebook_padding; get_padding_and_border (notebook, ¬ebook_padding); if (orientation == GTK_ORIENTATION_HORIZONTAL) { *minimum += notebook_padding.left + notebook_padding.right; *natural += notebook_padding.left + notebook_padding.right; } else { *minimum += notebook_padding.top + notebook_padding.bottom; *natural += notebook_padding.top + notebook_padding.bottom; } if (priv->show_tabs) { GtkRequisition tabs_requisition = { 0, 0 }; gtk_notebook_get_preferred_tabs_size (notebook, &tabs_requisition); if (orientation == GTK_ORIENTATION_HORIZONTAL) { if (priv->tab_pos == GTK_POS_TOP || priv->tab_pos == GTK_POS_BOTTOM) { *minimum = MAX (*minimum, tabs_requisition.width); *natural = MAX (*minimum, *natural); } else { *minimum += tabs_requisition.width; *natural += tabs_requisition.width; } } else { if (priv->tab_pos == GTK_POS_LEFT || priv->tab_pos == GTK_POS_RIGHT) { *minimum = MAX (*minimum, tabs_requisition.height); *natural = MAX (*minimum, *natural); } else { *minimum += tabs_requisition.height; *natural += tabs_requisition.height; } } } else { for (children = priv->children; children; children = children->next) { page = children->data; if (page->tab_label && gtk_widget_get_visible (page->tab_label)) gtk_widget_hide (page->tab_label); } } } border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); *minimum += border_width * 2; *natural += border_width * 2; if (switch_page) { if (vis_pages) { for (children = priv->children; children; children = children->next) { page = children->data; if (gtk_widget_get_visible (page->child)) { gtk_notebook_switch_page (notebook, page); break; } } } else if (gtk_widget_get_visible (widget)) { *minimum = border_width * 2; } } if (vis_pages && !priv->cur_page) { children = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE); if (children) { priv->first_tab = children; gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (children)); } } } static void gtk_notebook_get_preferred_width_for_height (GtkWidget *widget, gint height, gint *minimum, gint *natural) { gtk_notebook_size_request (widget, GTK_ORIENTATION_HORIZONTAL, height, minimum, natural); } static void gtk_notebook_get_preferred_height_for_width (GtkWidget *widget, gint width, gint *minimum, gint *natural) { gtk_notebook_size_request (widget, GTK_ORIENTATION_VERTICAL, width, minimum, natural); } static void gtk_notebook_get_preferred_width (GtkWidget *widget, gint *minimum, gint *natural) { gtk_notebook_size_request (widget, GTK_ORIENTATION_HORIZONTAL, -1, minimum, natural); } static void gtk_notebook_get_preferred_height (GtkWidget *widget, gint *minimum, gint *natural) { gtk_notebook_size_request (widget, GTK_ORIENTATION_VERTICAL, -1, minimum, natural); } static void gtk_notebook_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; gint tab_pos = get_effective_tab_pos (notebook); gboolean is_rtl; gtk_widget_set_allocation (widget, allocation); if (gtk_widget_get_realized (widget)) { GdkRectangle position; if (gtk_notebook_get_event_window_position (notebook, &position)) { gdk_window_move_resize (priv->event_window, position.x, position.y, position.width, position.height); if (gtk_widget_get_mapped (GTK_WIDGET (notebook))) gdk_window_show_unraised (priv->event_window); } else gdk_window_hide (priv->event_window); } if (priv->children) { gint border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); GtkNotebookPage *page; GtkAllocation child_allocation; GList *children; gint i; child_allocation.x = allocation->x + border_width; child_allocation.y = 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 (priv->show_tabs || priv->show_border) { GtkBorder padding; get_padding_and_border (notebook, &padding); child_allocation.x += padding.left; child_allocation.y += padding.top; child_allocation.width = MAX (1, child_allocation.width - padding.left - padding.right); child_allocation.height = MAX (1, child_allocation.height - padding.top - padding.bottom); if (priv->show_tabs && priv->children && priv->cur_page) { switch (tab_pos) { case GTK_POS_TOP: child_allocation.y += priv->cur_page->requisition.height; /* fall thru */ case GTK_POS_BOTTOM: child_allocation.height = MAX (1, child_allocation.height - priv->cur_page->requisition.height); break; case GTK_POS_LEFT: child_allocation.x += priv->cur_page->requisition.width; /* fall thru */ case GTK_POS_RIGHT: child_allocation.width = MAX (1, child_allocation.width - priv->cur_page->requisition.width); break; } for (i = 0; i < N_ACTION_WIDGETS; i++) { GtkAllocation widget_allocation; GtkRequisition requisition; if (!priv->action_widget[i]) continue; widget_allocation.x = allocation->x + border_width; widget_allocation.y = allocation->y + border_width; is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL; gtk_widget_get_preferred_size (priv->action_widget[i], &requisition, NULL); switch (tab_pos) { case GTK_POS_BOTTOM: widget_allocation.y += allocation->height - 2 * border_width - priv->cur_page->requisition.height; /* fall through */ case GTK_POS_TOP: widget_allocation.width = requisition.width; widget_allocation.height = priv->cur_page->requisition.height - padding.top; if ((i == ACTION_WIDGET_START && is_rtl) || (i == ACTION_WIDGET_END && !is_rtl)) widget_allocation.x += allocation->width - 2 * border_width - requisition.width; /* no fall through */ break; case GTK_POS_RIGHT: widget_allocation.x += allocation->width - 2 * border_width - priv->cur_page->requisition.width; /* fall through */ case GTK_POS_LEFT: widget_allocation.height = requisition.height; widget_allocation.width = priv->cur_page->requisition.width - padding.left; if (i == ACTION_WIDGET_END) widget_allocation.y += allocation->height - 2 * border_width - requisition.height; /* no fall through */ break; } gtk_widget_size_allocate (priv->action_widget[i], &widget_allocation); } } } children = priv->children; while (children) { page = children->data; children = children->next; if (gtk_widget_get_visible (page->child)) gtk_widget_size_allocate (page->child, &child_allocation); } gtk_notebook_pages_allocate (notebook); } } static gboolean gtk_notebook_draw (GtkWidget *widget, cairo_t *cr) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; GtkAllocation allocation; GdkWindow *window; gint i; gtk_widget_get_allocation (widget, &allocation); window = gtk_widget_get_window (widget); if (gtk_cairo_should_draw_window (cr, window)) { cairo_save (cr); cairo_translate (cr, -allocation.x, -allocation.y); gtk_notebook_paint (widget, cr); cairo_restore (cr); if (priv->show_tabs) { GtkNotebookPage *page; GList *pages; for (pages = priv->children; pages; pages = pages->next) { page = GTK_NOTEBOOK_PAGE (pages); if (gtk_widget_get_parent (page->tab_label) == widget) gtk_container_propagate_draw (GTK_CONTAINER (notebook), page->tab_label, cr); } } if (priv->cur_page) gtk_container_propagate_draw (GTK_CONTAINER (notebook), priv->cur_page->child, cr); if (priv->show_tabs) { for (i = 0; i < N_ACTION_WIDGETS; i++) { if (priv->action_widget[i]) gtk_container_propagate_draw (GTK_CONTAINER (notebook), priv->action_widget[i], cr); } } } if (priv->operation == DRAG_OPERATION_REORDER && gtk_cairo_should_draw_window (cr, priv->drag_window)) { cairo_save (cr); gtk_cairo_transform_to_window (cr, widget, priv->drag_window); gtk_notebook_draw_tab (notebook, priv->cur_page, cr, FALSE); cairo_restore (cr); gtk_container_propagate_draw (GTK_CONTAINER (notebook), priv->cur_page->tab_label, cr); } return FALSE; } static gboolean gtk_notebook_show_arrows (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; gboolean show_arrow = FALSE; GList *children; if (!priv->scrollable) return FALSE; children = priv->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) { GtkNotebookPrivate *priv = notebook->priv; GdkRectangle event_window_pos; gboolean before = ARROW_IS_BEFORE (arrow); gboolean left = ARROW_IS_LEFT (arrow); gint initial_gap; if (gtk_notebook_get_event_window_position (notebook, &event_window_pos)) { gint scroll_arrow_hlength; gint scroll_arrow_vlength; gtk_widget_style_get (GTK_WIDGET (notebook), "scroll-arrow-hlength", &scroll_arrow_hlength, "scroll-arrow-vlength", &scroll_arrow_vlength, "initial-gap", &initial_gap, NULL); switch (priv->tab_pos) { case GTK_POS_LEFT: case GTK_POS_RIGHT: rectangle->width = scroll_arrow_vlength; rectangle->height = scroll_arrow_vlength + initial_gap; if ((before && (priv->has_before_previous != priv->has_before_next)) || (!before && (priv->has_after_previous != priv->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 + initial_gap; if (!before) rectangle->y += event_window_pos.height - rectangle->height - 2 * initial_gap; break; case GTK_POS_TOP: case GTK_POS_BOTTOM: rectangle->width = scroll_arrow_hlength + initial_gap; rectangle->height = scroll_arrow_hlength; if (before) { if (left || !priv->has_before_previous) rectangle->x = event_window_pos.x + initial_gap; else rectangle->x = event_window_pos.x + initial_gap + rectangle->width; } else { if (!left || !priv->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 = floor ((gdouble)event_window_pos.y + (event_window_pos.height - rectangle->height) / 2.0 + 0.5); break; } } } static GtkNotebookArrow gtk_notebook_get_arrow (GtkNotebook *notebook, gint x, gint y) { GtkNotebookPrivate *priv = notebook->priv; GdkRectangle arrow_rect; GdkRectangle event_window_pos; gint i; gint x0, y0; GtkNotebookArrow arrow[4]; arrow[0] = priv->has_before_previous ? ARROW_LEFT_BEFORE : ARROW_NONE; arrow[1] = priv->has_before_next ? ARROW_RIGHT_BEFORE : ARROW_NONE; arrow[2] = priv->has_after_previous ? ARROW_LEFT_AFTER : ARROW_NONE; arrow[3] = priv->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) { GtkNotebookPrivate *priv = notebook->priv; GtkWidget *widget = GTK_WIDGET (notebook); 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 (!priv->focus_tab || gtk_notebook_search_page (notebook, priv->focus_tab, left ? STEP_PREV : STEP_NEXT, TRUE)) { gtk_notebook_change_current_page (notebook, left ? -1 : 1); gtk_widget_grab_focus (widget); } } static gboolean gtk_notebook_arrow_button_press (GtkNotebook *notebook, GtkNotebookArrow arrow, gint button) { GtkNotebookPrivate *priv = notebook->priv; 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); priv->button = button; priv->click_child = arrow; if (button == GDK_BUTTON_PRIMARY) { gtk_notebook_do_arrow (notebook, arrow); gtk_notebook_set_scroll_timer (notebook); } else if (button == GDK_BUTTON_MIDDLE) gtk_notebook_page_select (notebook, TRUE); else if (button == GDK_BUTTON_SECONDARY) 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 != gtk_widget_get_window (widget)) { 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 GList* get_tab_at_pos (GtkNotebook *notebook, gint x, gint y) { GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; GList *children; children = priv->children; while (children) { page = children->data; if (gtk_widget_get_visible (page->child) && page->tab_label && gtk_widget_get_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))) return children; children = children->next; } return NULL; } static gboolean gtk_notebook_button_press (GtkWidget *widget, GdkEventButton *event) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; GList *tab; GtkNotebookArrow arrow; gint x, y; if (event->type != GDK_BUTTON_PRESS || !priv->children || priv->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->button); if (priv->menu && gdk_event_triggers_context_menu ((GdkEvent *) event)) { gtk_menu_popup (GTK_MENU (priv->menu), NULL, NULL, NULL, NULL, 3, event->time); return TRUE; } if (event->button != GDK_BUTTON_PRIMARY) return FALSE; priv->button = event->button; if ((tab = get_tab_at_pos (notebook, x, y)) != NULL) { gboolean page_changed, was_focus; page = tab->data; page_changed = page != priv->cur_page; was_focus = gtk_widget_is_focus (widget); gtk_notebook_switch_focus_tab (notebook, tab); gtk_widget_grab_focus (widget); if (page_changed && !was_focus) gtk_widget_child_focus (page->child, GTK_DIR_TAB_FORWARD); /* save press to possibly begin a drag */ if (page->reorderable || page->detachable) { priv->during_detach = FALSE; priv->during_reorder = FALSE; priv->pressed_button = event->button; priv->mouse_x = x; priv->mouse_y = y; priv->drag_begin_x = priv->mouse_x; priv->drag_begin_y = priv->mouse_y; priv->drag_offset_x = priv->drag_begin_x - page->allocation.x; priv->drag_offset_y = priv->drag_begin_y - page->allocation.y; } } return TRUE; } static void popup_position_func (GtkMenu *menu, gint *x, gint *y, gboolean *push_in, gpointer data) { GtkNotebook *notebook = data; GtkNotebookPrivate *priv = notebook->priv; GtkAllocation allocation; GtkWidget *w; GtkRequisition requisition; if (priv->focus_tab) { GtkNotebookPage *page; page = priv->focus_tab->data; w = page->tab_label; } else { w = GTK_WIDGET (notebook); } gdk_window_get_origin (gtk_widget_get_window (w), x, y); gtk_widget_get_allocation (w, &allocation); gtk_widget_get_preferred_size (GTK_WIDGET (menu), &requisition, NULL); if (gtk_widget_get_direction (w) == GTK_TEXT_DIR_RTL) *x += allocation.x + allocation.width - requisition.width; else *x += allocation.x; *y += allocation.y + allocation.height; *push_in = FALSE; } static gboolean gtk_notebook_popup_menu (GtkWidget *widget) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; if (priv->menu) { gtk_menu_popup (GTK_MENU (priv->menu), NULL, NULL, popup_position_func, notebook, 0, gtk_get_current_event_time ()); gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->menu), FALSE); return TRUE; } return FALSE; } static void stop_scrolling (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; if (priv->timer) { g_source_remove (priv->timer); priv->timer = 0; priv->need_timer = FALSE; } priv->click_child = 0; priv->button = 0; gtk_notebook_redraw_arrows (notebook); } static GList* get_drop_position (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; GList *children, *last_child; GtkNotebookPage *page; gboolean is_rtl; gint x, y; x = priv->mouse_x; y = priv->mouse_y; is_rtl = gtk_widget_get_direction ((GtkWidget *) notebook) == GTK_TEXT_DIR_RTL; children = priv->children; last_child = NULL; while (children) { page = children->data; if ((priv->operation != DRAG_OPERATION_REORDER || page != priv->cur_page) && gtk_widget_get_visible (page->child) && page->tab_label && gtk_widget_get_mapped (page->tab_label)) { switch (priv->tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: if (!is_rtl) { if (PAGE_MIDDLE_X (page) > x) return children; } else { if (PAGE_MIDDLE_X (page) < x) return children; } break; case GTK_POS_LEFT: case GTK_POS_RIGHT: if (PAGE_MIDDLE_Y (page) > y) return children; break; } last_child = children->next; } children = children->next; } return last_child; } static void show_drag_window (GtkNotebook *notebook, GtkNotebookPrivate *priv, GtkNotebookPage *page, GdkDevice *device) { GtkWidget *widget = GTK_WIDGET (notebook); if (!priv->drag_window) { GdkWindowAttr attributes; guint attributes_mask; GdkRGBA transparent = {0, 0, 0, 0}; attributes.x = page->allocation.x; attributes.y = page->allocation.y; attributes.width = page->allocation.width; attributes.height = page->allocation.height; attributes.window_type = GDK_WINDOW_CHILD; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK; attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL; priv->drag_window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gtk_widget_register_window (widget, priv->drag_window); gdk_window_set_background_rgba (priv->drag_window, &transparent); } g_object_ref (page->tab_label); gtk_widget_unparent (page->tab_label); gtk_widget_set_parent_window (page->tab_label, priv->drag_window); gtk_widget_set_parent (page->tab_label, widget); g_object_unref (page->tab_label); gdk_window_show (priv->drag_window); /* the grab will dissapear when the window is hidden */ gdk_device_grab (device, priv->drag_window, GDK_OWNERSHIP_WINDOW, FALSE, GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK, NULL, GDK_CURRENT_TIME); } /* This function undoes the reparenting that happens both when drag_window * is shown for reordering and when the DnD icon is shown for detaching */ static void hide_drag_window (GtkNotebook *notebook, GtkNotebookPrivate *priv, GtkNotebookPage *page) { GtkWidget *widget = GTK_WIDGET (notebook); GtkWidget *parent = gtk_widget_get_parent (page->tab_label); if (gtk_widget_get_window (page->tab_label) != gtk_widget_get_window (widget) || !NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page)) { g_object_ref (page->tab_label); if (GTK_IS_WINDOW (parent)) /* parent widget is the drag window */ gtk_container_remove (GTK_CONTAINER (parent), page->tab_label); else gtk_widget_unparent (page->tab_label); gtk_widget_set_parent (page->tab_label, widget); g_object_unref (page->tab_label); } if (priv->drag_window && gdk_window_is_visible (priv->drag_window)) gdk_window_hide (priv->drag_window); } static void gtk_notebook_stop_reorder (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; if (priv->operation == DRAG_OPERATION_DETACH) page = priv->detached_tab; else page = priv->cur_page; if (!page || !page->tab_label) return; priv->pressed_button = -1; if (page->reorderable || page->detachable) { if (priv->during_reorder) { gint old_page_num, page_num, i; GList *element; element = get_drop_position (notebook); old_page_num = g_list_position (priv->children, priv->focus_tab); page_num = reorder_tab (notebook, element, priv->focus_tab); gtk_notebook_child_reordered (notebook, page); if (priv->has_scrolled || old_page_num != page_num) { for (element = priv->children, i = 0; element; element = element->next, i++) { if (MIN (old_page_num, page_num) <= i && i <= MAX (old_page_num, page_num)) gtk_widget_child_notify (((GtkNotebookPage *) element->data)->child, "position"); } g_signal_emit (notebook, notebook_signals[PAGE_REORDERED], 0, page->child, page_num); } priv->has_scrolled = FALSE; priv->during_reorder = FALSE; } hide_drag_window (notebook, priv, page); priv->operation = DRAG_OPERATION_NONE; gtk_notebook_pages_allocate (notebook); if (priv->dnd_timer) { g_source_remove (priv->dnd_timer); priv->dnd_timer = 0; } } } static gboolean gtk_notebook_button_release (GtkWidget *widget, GdkEventButton *event) { GtkNotebook *notebook; GtkNotebookPrivate *priv; GtkNotebookPage *page; if (event->type != GDK_BUTTON_RELEASE) return FALSE; notebook = GTK_NOTEBOOK (widget); priv = notebook->priv; page = priv->cur_page; if (!priv->during_detach && page->reorderable && event->button == priv->pressed_button) gtk_notebook_stop_reorder (notebook); if (event->button == priv->button) { stop_scrolling (notebook); return TRUE; } else return FALSE; } static void update_prelight_tab (GtkNotebook *notebook, GtkNotebookPage *page) { GtkNotebookPrivate *priv = notebook->priv; if (priv->prelight_tab == page) return; if (priv->prelight_tab && priv->prelight_tab->tab_label) gtk_style_context_remove_class (gtk_widget_get_style_context (priv->prelight_tab->tab_label), "prelight-page"); if (page && page->tab_label) gtk_style_context_add_class (gtk_widget_get_style_context (page->tab_label), "prelight-page"); priv->prelight_tab = page; } static void tab_prelight (GtkNotebook *notebook, GdkEvent *event) { GtkNotebookPrivate *priv = notebook->priv; GList *tab; gint x, y; if (get_widget_coordinates (GTK_WIDGET (notebook), (GdkEvent *)event, &x, &y)) { tab = get_tab_at_pos (notebook, x, y); if ((tab == NULL && priv->prelight_tab != NULL) || (tab != NULL && tab->data != priv->prelight_tab)) { update_prelight_tab (notebook, tab == NULL ? NULL : tab->data); gtk_notebook_redraw_tabs (notebook); } } } static gboolean gtk_notebook_enter_notify (GtkWidget *widget, GdkEventCrossing *event) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); tab_prelight (notebook, (GdkEvent *)event); return FALSE; } static gboolean gtk_notebook_leave_notify (GtkWidget *widget, GdkEventCrossing *event) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; gint x, y; if (get_widget_coordinates (widget, (GdkEvent *)event, &x, &y)) { if (priv->prelight_tab != NULL) { tab_prelight (notebook, (GdkEvent *)event); } if (priv->in_child) { priv->in_child = 0; gtk_notebook_redraw_arrows (notebook); } } return FALSE; } static GtkNotebookPointerPosition get_pointer_position (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; GtkWidget *widget = GTK_WIDGET (notebook); gint wx, wy, width, height; gboolean is_rtl; if (!priv->scrollable) return POINTER_BETWEEN; gdk_window_get_position (priv->event_window, &wx, &wy); width = gdk_window_get_width (priv->event_window); height = gdk_window_get_height (priv->event_window); if (priv->tab_pos == GTK_POS_TOP || priv->tab_pos == GTK_POS_BOTTOM) { gint x; is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL; x = priv->mouse_x - wx; if (x > width - SCROLL_THRESHOLD) return (is_rtl) ? POINTER_BEFORE : POINTER_AFTER; else if (x < SCROLL_THRESHOLD) return (is_rtl) ? POINTER_AFTER : POINTER_BEFORE; else return POINTER_BETWEEN; } else { gint y; y = priv->mouse_y - wy; if (y > height - SCROLL_THRESHOLD) return POINTER_AFTER; else if (y < SCROLL_THRESHOLD) return POINTER_BEFORE; else return POINTER_BETWEEN; } } static gboolean scroll_notebook_timer (gpointer data) { GtkNotebook *notebook = GTK_NOTEBOOK (data); GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPointerPosition pointer_position; GList *element, *first_tab; pointer_position = get_pointer_position (notebook); element = get_drop_position (notebook); reorder_tab (notebook, element, priv->focus_tab); first_tab = gtk_notebook_search_page (notebook, priv->first_tab, (pointer_position == POINTER_BEFORE) ? STEP_PREV : STEP_NEXT, TRUE); if (first_tab) { priv->first_tab = first_tab; gtk_notebook_pages_allocate (notebook); gdk_window_move_resize (priv->drag_window, priv->drag_window_x, priv->drag_window_y, priv->cur_page->allocation.width, priv->cur_page->allocation.height); gdk_window_raise (priv->drag_window); } return TRUE; } static gboolean check_threshold (GtkNotebook *notebook, gint current_x, gint current_y) { GtkNotebookPrivate *priv = notebook->priv; gint dnd_threshold; GdkRectangle rectangle = { 0, }; /* shut up gcc */ GtkSettings *settings; settings = gtk_widget_get_settings (GTK_WIDGET (notebook)); g_object_get (G_OBJECT (settings), "gtk-dnd-drag-threshold", &dnd_threshold, NULL); /* we want a large threshold */ dnd_threshold *= DND_THRESHOLD_MULTIPLIER; gdk_window_get_position (priv->event_window, &rectangle.x, &rectangle.y); rectangle.width = gdk_window_get_width (priv->event_window); rectangle.height = gdk_window_get_height (priv->event_window); rectangle.x -= dnd_threshold; rectangle.width += 2 * dnd_threshold; rectangle.y -= dnd_threshold; rectangle.height += 2 * dnd_threshold; return (current_x < rectangle.x || current_x > rectangle.x + rectangle.width || current_y < rectangle.y || current_y > rectangle.y + rectangle.height); } static gboolean gtk_notebook_motion_notify (GtkWidget *widget, GdkEventMotion *event) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; GtkNotebookArrow arrow; GtkNotebookPointerPosition pointer_position; gint x_win, y_win; page = priv->cur_page; if (!page) return FALSE; if (!(event->state & GDK_BUTTON1_MASK) && priv->pressed_button != -1) { gtk_notebook_stop_reorder (notebook); stop_scrolling (notebook); } if (event->time < priv->timestamp + MSECS_BETWEEN_UPDATES) return FALSE; priv->timestamp = event->time; tab_prelight (notebook, (GdkEvent *)event); /* While animating the move, event->x is relative to the flying tab * (priv->drag_window has a pointer grab), but we need coordinates relative to * the notebook widget. */ gdk_window_get_origin (gtk_widget_get_window (widget), &x_win, &y_win); priv->mouse_x = event->x_root - x_win; priv->mouse_y = event->y_root - y_win; arrow = gtk_notebook_get_arrow (notebook, priv->mouse_x, priv->mouse_y); if (arrow != priv->in_child) { priv->in_child = arrow; gtk_notebook_redraw_arrows (notebook); } if (priv->pressed_button == -1) return FALSE; if (page->detachable && check_threshold (notebook, priv->mouse_x, priv->mouse_y)) { priv->detached_tab = priv->cur_page; priv->during_detach = TRUE; gtk_drag_begin_with_coordinates (widget, priv->source_targets, GDK_ACTION_MOVE, priv->pressed_button, (GdkEvent*) event, priv->drag_begin_x, priv->drag_begin_y); return TRUE; } if (page->reorderable && (priv->during_reorder || gtk_drag_check_threshold (widget, priv->drag_begin_x, priv->drag_begin_y, priv->mouse_x, priv->mouse_y))) { priv->during_reorder = TRUE; pointer_position = get_pointer_position (notebook); if (event->window == priv->drag_window && pointer_position != POINTER_BETWEEN && gtk_notebook_show_arrows (notebook)) { /* scroll tabs */ if (!priv->dnd_timer) { priv->has_scrolled = TRUE; priv->dnd_timer = gdk_threads_add_timeout (TIMEOUT_REPEAT * SCROLL_DELAY_FACTOR, scroll_notebook_timer, (gpointer) notebook); g_source_set_name_by_id (priv->dnd_timer, "[gtk+] scroll_notebook_timer"); } } else { if (priv->dnd_timer) { g_source_remove (priv->dnd_timer); priv->dnd_timer = 0; } } if (event->window == priv->drag_window || priv->operation != DRAG_OPERATION_REORDER) { /* the drag operation is beginning, create the window */ if (priv->operation != DRAG_OPERATION_REORDER) { priv->operation = DRAG_OPERATION_REORDER; show_drag_window (notebook, priv, page, event->device); } gtk_notebook_pages_allocate (notebook); gdk_window_move_resize (priv->drag_window, priv->drag_window_x, priv->drag_window_y, page->allocation.width, page->allocation.height); gtk_notebook_redraw_tabs_junction (notebook); } } return TRUE; } static void gtk_notebook_grab_notify (GtkWidget *widget, gboolean was_grabbed) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); if (!was_grabbed) { gtk_notebook_stop_reorder (notebook); stop_scrolling (notebook); } } static void gtk_notebook_state_flags_changed (GtkWidget *widget, GtkStateFlags previous_state) { if (!gtk_widget_is_sensitive (widget)) stop_scrolling (GTK_NOTEBOOK (widget)); } static gboolean gtk_notebook_focus_in (GtkWidget *widget, GdkEventFocus *event) { gtk_notebook_redraw_tabs (GTK_NOTEBOOK (widget)); return FALSE; } static gboolean gtk_notebook_focus_out (GtkWidget *widget, GdkEventFocus *event) { gtk_notebook_redraw_tabs (GTK_NOTEBOOK (widget)); return FALSE; } static void gtk_notebook_style_updated (GtkWidget *widget) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; gboolean has_before_previous; gboolean has_before_next; gboolean has_after_previous; gboolean has_after_next; 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); priv->has_before_previous = has_before_previous; priv->has_before_next = has_before_next; priv->has_after_previous = has_after_previous; priv->has_after_next = has_after_next; GTK_WIDGET_CLASS (gtk_notebook_parent_class)->style_updated (widget); } static gboolean on_drag_icon_draw (GtkWidget *widget, cairo_t *cr, gpointer data) { GtkWidget *notebook, *child; GtkRequisition requisition; GtkStyleContext *context; gboolean has_tab_gap; notebook = GTK_WIDGET (data); child = gtk_bin_get_child (GTK_BIN (widget)); context = gtk_widget_get_style_context (widget); gtk_style_context_save (context); notebook_tab_prepare_style_context (GTK_NOTEBOOK (notebook), NULL, context, FALSE); gtk_widget_get_preferred_size (widget, &requisition, NULL); gtk_widget_style_get (GTK_WIDGET (notebook), "has-tab-gap", &has_tab_gap, NULL); if (has_tab_gap) { gint gap_pos; gap_pos = get_tab_gap_pos (GTK_NOTEBOOK (notebook)); gtk_render_extension (context, cr, 0, 0, requisition.width, requisition.height, gap_pos); } else { gtk_render_background (context, cr, 0, 0, requisition.width, requisition.height); gtk_render_frame (context, cr, 0, 0, requisition.width, requisition.height); } if (child) gtk_container_propagate_draw (GTK_CONTAINER (widget), child, cr); gtk_style_context_restore (context); return TRUE; } static void gtk_notebook_drag_begin (GtkWidget *widget, GdkDragContext *context) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; GtkWidget *tab_label; if (priv->dnd_timer) { g_source_remove (priv->dnd_timer); priv->dnd_timer = 0; } priv->operation = DRAG_OPERATION_DETACH; gtk_notebook_pages_allocate (notebook); tab_label = priv->detached_tab->tab_label; hide_drag_window (notebook, priv, priv->cur_page); g_object_ref (tab_label); gtk_widget_unparent (tab_label); priv->dnd_window = gtk_window_new (GTK_WINDOW_POPUP); gtk_window_set_screen (GTK_WINDOW (priv->dnd_window), gtk_widget_get_screen (widget)); gtk_container_add (GTK_CONTAINER (priv->dnd_window), tab_label); gtk_widget_set_size_request (priv->dnd_window, priv->detached_tab->allocation.width, priv->detached_tab->allocation.height); g_object_unref (tab_label); g_signal_connect (G_OBJECT (priv->dnd_window), "draw", G_CALLBACK (on_drag_icon_draw), notebook); gtk_drag_set_icon_widget (context, priv->dnd_window, -2, -2); } static void gtk_notebook_drag_end (GtkWidget *widget, GdkDragContext *context) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; gtk_notebook_stop_reorder (notebook); if (priv->detached_tab) gtk_notebook_switch_page (notebook, priv->detached_tab); _gtk_bin_set_child (GTK_BIN (priv->dnd_window), NULL); gtk_widget_destroy (priv->dnd_window); priv->dnd_window = NULL; priv->operation = DRAG_OPERATION_NONE; } static GtkNotebook * gtk_notebook_create_window (GtkNotebook *notebook, GtkWidget *page, gint x, gint y) { return NULL; } static gboolean gtk_notebook_drag_failed (GtkWidget *widget, GdkDragContext *context, GtkDragResult result) { if (result == GTK_DRAG_RESULT_NO_TARGET) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; GtkNotebook *dest_notebook = NULL; gint x, y; gdk_device_get_position (gdk_drag_context_get_device (context), NULL, &x, &y); g_signal_emit (notebook, notebook_signals[CREATE_WINDOW], 0, priv->detached_tab->child, x, y, &dest_notebook); if (dest_notebook) do_detach_tab (notebook, dest_notebook, priv->detached_tab->child, 0, 0); return TRUE; } return FALSE; } static gboolean gtk_notebook_switch_tab_timeout (gpointer data) { GtkNotebook *notebook = GTK_NOTEBOOK (data); GtkNotebookPrivate *priv = notebook->priv; GList *switch_tab; priv->switch_tab_timer = 0; switch_tab = priv->switch_tab; priv->switch_tab = NULL; if (switch_tab) { /* FIXME: hack, we don't want the * focus to move fom the source widget */ priv->child_has_focus = FALSE; gtk_notebook_switch_focus_tab (notebook, switch_tab); } return FALSE; } static gboolean gtk_notebook_drag_motion (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; GtkAllocation allocation; GdkRectangle position; GtkNotebookArrow arrow; GdkAtom target, tab_target; GList *tab; gboolean retval = FALSE; gtk_widget_get_allocation (widget, &allocation); arrow = gtk_notebook_get_arrow (notebook, x + allocation.x, y + allocation.y); if (arrow) { priv->click_child = arrow; gtk_notebook_set_scroll_timer (notebook); gdk_drag_status (context, 0, time); retval = TRUE; goto out; } stop_scrolling (notebook); target = gtk_drag_dest_find_target (widget, context, NULL); tab_target = gdk_atom_intern_static_string ("GTK_NOTEBOOK_TAB"); if (target == tab_target) { GQuark group, source_group; GtkNotebook *source; GtkWidget *source_child; retval = TRUE; source = GTK_NOTEBOOK (gtk_drag_get_source_widget (context)); source_child = source->priv->cur_page->child; group = notebook->priv->group; source_group = source->priv->group; if (group != 0 && group == source_group && !(widget == source_child || gtk_widget_is_ancestor (widget, source_child))) { gdk_drag_status (context, GDK_ACTION_MOVE, time); goto out; } else { /* it's a tab, but doesn't share * ID with this notebook */ gdk_drag_status (context, 0, time); } } x += allocation.x; y += allocation.y; if (gtk_notebook_get_event_window_position (notebook, &position) && x >= position.x && x <= position.x + position.width && y >= position.y && y <= position.y + position.height && (tab = get_tab_at_pos (notebook, x, y))) { priv->mouse_x = x; priv->mouse_y = y; retval = TRUE; if (tab != priv->switch_tab) remove_switch_tab_timer (notebook); priv->switch_tab = tab; if (!priv->switch_tab_timer) { priv->switch_tab_timer = gdk_threads_add_timeout (TIMEOUT_EXPAND, gtk_notebook_switch_tab_timeout, widget); g_source_set_name_by_id (priv->switch_tab_timer, "[gtk+] gtk_notebook_switch_tab_timeout"); } } else { remove_switch_tab_timer (notebook); } out: return retval; } static void gtk_notebook_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); remove_switch_tab_timer (notebook); stop_scrolling (notebook); } static gboolean gtk_notebook_drag_drop (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time) { GdkAtom target, tab_target; target = gtk_drag_dest_find_target (widget, context, NULL); tab_target = gdk_atom_intern_static_string ("GTK_NOTEBOOK_TAB"); if (target == tab_target) { gtk_drag_get_data (widget, context, target, time); return TRUE; } return FALSE; } static void do_detach_tab (GtkNotebook *from, GtkNotebook *to, GtkWidget *child, gint x, gint y) { GtkNotebookPrivate *to_priv = to->priv; GtkAllocation to_allocation; GtkWidget *tab_label, *menu_label; gboolean tab_expand, tab_fill, reorderable, detachable; GList *element; gint page_num; menu_label = gtk_notebook_get_menu_label (from, child); if (menu_label) g_object_ref (menu_label); tab_label = gtk_notebook_get_tab_label (from, child); if (tab_label) g_object_ref (tab_label); g_object_ref (child); gtk_container_child_get (GTK_CONTAINER (from), child, "tab-expand", &tab_expand, "tab-fill", &tab_fill, "reorderable", &reorderable, "detachable", &detachable, NULL); gtk_container_remove (GTK_CONTAINER (from), child); gtk_widget_get_allocation (GTK_WIDGET (to), &to_allocation); to_priv->mouse_x = x + to_allocation.x; to_priv->mouse_y = y + to_allocation.y; element = get_drop_position (to); page_num = g_list_position (to_priv->children, element); gtk_notebook_insert_page_menu (to, child, tab_label, menu_label, page_num); gtk_container_child_set (GTK_CONTAINER (to), child, "tab-expand", tab_expand, "tab-fill", tab_fill, "reorderable", reorderable, "detachable", detachable, NULL); if (child) g_object_unref (child); if (tab_label) g_object_unref (tab_label); if (menu_label) g_object_unref (menu_label); gtk_notebook_set_current_page (to, page_num); } static void gtk_notebook_drag_data_get (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *data, guint info, guint time) { GdkAtom target; target = gtk_selection_data_get_target (data); if (target == gdk_atom_intern_static_string ("GTK_NOTEBOOK_TAB")) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; gtk_selection_data_set (data, target, 8, (void*) &priv->detached_tab->child, sizeof (gpointer)); } } static void gtk_notebook_drag_data_received (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *data, guint info, guint time) { GtkNotebook *notebook; GtkWidget *source_widget; GtkWidget **child; notebook = GTK_NOTEBOOK (widget); source_widget = gtk_drag_get_source_widget (context); if (source_widget && gtk_selection_data_get_target (data) == gdk_atom_intern_static_string ("GTK_NOTEBOOK_TAB")) { child = (void*) gtk_selection_data_get_data (data); do_detach_tab (GTK_NOTEBOOK (source_widget), notebook, *child, x, y); gtk_drag_finish (context, TRUE, FALSE, time); } else gtk_drag_finish (context, FALSE, FALSE, time); } /* 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; /* 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); gtk_notebook_set_tab_label_packing (GTK_NOTEBOOK (container), child, g_value_get_boolean (value), fill); break; case CHILD_PROP_TAB_FILL: gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child, &expand, &fill); gtk_notebook_set_tab_label_packing (GTK_NOTEBOOK (container), child, expand, g_value_get_boolean (value)); break; case CHILD_PROP_REORDERABLE: gtk_notebook_set_tab_reorderable (GTK_NOTEBOOK (container), child, g_value_get_boolean (value)); break; case CHILD_PROP_DETACHABLE: gtk_notebook_set_tab_detachable (GTK_NOTEBOOK (container), child, g_value_get_boolean (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) { GtkNotebook *notebook = GTK_NOTEBOOK (container); GtkNotebookPrivate *priv = notebook->priv; GList *list; GtkWidget *label; gboolean expand; gboolean fill; /* 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 (GTK_IS_LABEL (label)) g_value_set_string (value, gtk_label_get_label (GTK_LABEL (label))); else g_value_set_string (value, NULL); break; case CHILD_PROP_MENU_LABEL: label = gtk_notebook_get_menu_label (notebook, child); if (GTK_IS_LABEL (label)) g_value_set_string (value, gtk_label_get_label (GTK_LABEL (label))); else g_value_set_string (value, NULL); break; case CHILD_PROP_POSITION: g_value_set_int (value, g_list_position (priv->children, list)); break; case CHILD_PROP_TAB_EXPAND: gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child, &expand, 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); g_value_set_boolean (value, fill); break; case CHILD_PROP_REORDERABLE: g_value_set_boolean (value, gtk_notebook_get_tab_reorderable (GTK_NOTEBOOK (container), child)); break; case CHILD_PROP_DETACHABLE: g_value_set_boolean (value, gtk_notebook_get_tab_detachable (GTK_NOTEBOOK (container), child)); break; default: GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec); break; } } static void gtk_notebook_add (GtkContainer *container, GtkWidget *widget) { gtk_notebook_insert_page_menu (GTK_NOTEBOOK (container), widget, NULL, NULL, -1); } static void gtk_notebook_remove (GtkContainer *container, GtkWidget *widget) { GtkNotebook *notebook = GTK_NOTEBOOK (container); GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; GList *children, *list; gint page_num = 0; children = priv->children; while (children) { page = children->data; if (page->child == widget) break; page_num++; children = children->next; } if (children == NULL) return; g_object_ref (widget); list = children->next; gtk_notebook_real_remove (notebook, children); while (list) { gtk_widget_child_notify (((GtkNotebookPage *)list->data)->child, "position"); list = list->next; } g_signal_emit (notebook, notebook_signals[PAGE_REMOVED], 0, widget, page_num); g_object_unref (widget); } static gboolean focus_tabs_in (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; if (priv->show_tabs && priv->cur_page) { gtk_widget_grab_focus (GTK_WIDGET (notebook)); gtk_notebook_set_focus_child (GTK_CONTAINER (notebook), NULL); gtk_notebook_switch_focus_tab (notebook, g_list_find (priv->children, priv->cur_page)); return TRUE; } else return FALSE; } static gboolean focus_tabs_move (GtkNotebook *notebook, GtkDirectionType direction, gint search_direction) { GtkNotebookPrivate *priv = notebook->priv; GList *new_page; new_page = gtk_notebook_search_page (notebook, priv->focus_tab, search_direction, TRUE); if (!new_page) { new_page = gtk_notebook_search_page (notebook, NULL, search_direction, TRUE); } if (new_page) gtk_notebook_switch_focus_tab (notebook, new_page); else gtk_widget_error_bell (GTK_WIDGET (notebook)); return TRUE; } static gboolean focus_child_in (GtkNotebook *notebook, GtkDirectionType direction) { GtkNotebookPrivate *priv = notebook->priv; if (priv->cur_page) return gtk_widget_child_focus (priv->cur_page->child, direction); else return FALSE; } static gboolean focus_action_in (GtkNotebook *notebook, gint action, GtkDirectionType direction) { GtkNotebookPrivate *priv = notebook->priv; if (priv->action_widget[action] && gtk_widget_get_visible (priv->action_widget[action])) return gtk_widget_child_focus (priv->action_widget[action], direction); else return FALSE; } /* Focus in the notebook can either be on the pages, or on * the tabs or on the action_widgets. */ static gboolean gtk_notebook_focus (GtkWidget *widget, GtkDirectionType direction) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; GtkWidget *old_focus_child; GtkDirectionType effective_direction; gint first_action; gint last_action; gboolean widget_is_focus; GtkContainer *container; container = GTK_CONTAINER (widget); if (priv->tab_pos == GTK_POS_TOP || priv->tab_pos == GTK_POS_LEFT) { first_action = ACTION_WIDGET_START; last_action = ACTION_WIDGET_END; } else { first_action = ACTION_WIDGET_END; last_action = ACTION_WIDGET_START; } if (priv->focus_out) { priv->focus_out = FALSE; /* Clear this to catch the wrap-around case */ return FALSE; } widget_is_focus = gtk_widget_is_focus (widget); old_focus_child = gtk_container_get_focus_child (container); effective_direction = get_effective_direction (notebook, direction); if (old_focus_child) /* Focus on page child or action widget */ { if (gtk_widget_child_focus (old_focus_child, direction)) return TRUE; if (old_focus_child == priv->action_widget[ACTION_WIDGET_START]) { switch (effective_direction) { case GTK_DIR_DOWN: return focus_child_in (notebook, GTK_DIR_TAB_FORWARD); case GTK_DIR_RIGHT: return focus_tabs_in (notebook); case GTK_DIR_LEFT: return FALSE; case GTK_DIR_UP: return FALSE; default: switch (direction) { case GTK_DIR_TAB_FORWARD: if ((priv->tab_pos == GTK_POS_RIGHT || priv->tab_pos == GTK_POS_BOTTOM) && focus_child_in (notebook, direction)) return TRUE; return focus_tabs_in (notebook); case GTK_DIR_TAB_BACKWARD: return FALSE; default: g_assert_not_reached (); } } } else if (old_focus_child == priv->action_widget[ACTION_WIDGET_END]) { switch (effective_direction) { case GTK_DIR_DOWN: return focus_child_in (notebook, GTK_DIR_TAB_FORWARD); case GTK_DIR_RIGHT: return FALSE; case GTK_DIR_LEFT: return focus_tabs_in (notebook); case GTK_DIR_UP: return FALSE; default: switch (direction) { case GTK_DIR_TAB_FORWARD: return FALSE; case GTK_DIR_TAB_BACKWARD: if ((priv->tab_pos == GTK_POS_TOP || priv->tab_pos == GTK_POS_LEFT) && focus_child_in (notebook, direction)) return TRUE; return focus_tabs_in (notebook); default: g_assert_not_reached (); } } } else { 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_LEFT: case GTK_DIR_RIGHT: return FALSE; case GTK_DIR_TAB_FORWARD: return focus_action_in (notebook, last_action, direction); } } } else if (widget_is_focus) /* Focus was on tabs */ { switch (effective_direction) { case GTK_DIR_TAB_BACKWARD: return focus_action_in (notebook, first_action, direction); case GTK_DIR_UP: return FALSE; case GTK_DIR_TAB_FORWARD: if (focus_child_in (notebook, GTK_DIR_TAB_FORWARD)) return TRUE; return focus_action_in (notebook, last_action, direction); 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_action_in (notebook, first_action, direction)) return TRUE; if (focus_tabs_in (notebook)) return TRUE; if (focus_action_in (notebook, last_action, direction)) return TRUE; if (focus_child_in (notebook, direction)) return TRUE; return FALSE; case GTK_DIR_TAB_BACKWARD: if (focus_action_in (notebook, last_action, direction)) return TRUE; if (focus_child_in (notebook, direction)) return TRUE; if (focus_tabs_in (notebook)) return TRUE; if (focus_action_in (notebook, first_action, direction)) return TRUE; case GTK_DIR_UP: 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); GtkNotebookPrivate *priv = notebook->priv; 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_is_toplevel (toplevel)) { page_child = gtk_window_get_focus (GTK_WINDOW (toplevel)); while (page_child) { if (gtk_widget_get_parent (page_child) == 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_get_focus (GTK_WINDOW (toplevel)); g_object_add_weak_pointer (G_OBJECT (page->last_focus_child), (gpointer *)&page->last_focus_child); break; } } page_child = gtk_widget_get_parent (page_child); } } if (child) { g_return_if_fail (GTK_IS_WIDGET (child)); priv->child_has_focus = TRUE; if (!priv->focus_tab) { GList *children; GtkNotebookPage *page; children = priv->children; while (children) { page = children->data; if (page->child == child || page->tab_label == child) gtk_notebook_switch_focus_tab (notebook, children); children = children->next; } } } else priv->child_has_focus = FALSE; GTK_CONTAINER_CLASS (gtk_notebook_parent_class)->set_focus_child (container, child); } static void gtk_notebook_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data) { GtkNotebook *notebook = GTK_NOTEBOOK (container); GtkNotebookPrivate *priv = notebook->priv; GList *children; gint i; children = priv->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); } } if (include_internals) { for (i = 0; i < N_ACTION_WIDGETS; i++) { if (priv->action_widget[i]) (* callback) (priv->action_widget[i], callback_data); } } } static GtkWidgetPath * gtk_notebook_get_path_for_child (GtkContainer *container, GtkWidget *widget) { GtkNotebookPrivate *priv; GtkNotebook *notebook; GtkNotebookPage *page; GtkWidgetPath *path; GList *c; path = GTK_CONTAINER_CLASS (gtk_notebook_parent_class)->get_path_for_child (container, widget); notebook = GTK_NOTEBOOK (container); priv = notebook->priv; for (c = priv->children; c; c = c->next) { page = c->data; if (page->tab_label == widget) break; } /* Widget is not a tab label */ if (!c) return path; gtk_widget_path_iter_add_region (path, gtk_widget_path_length (path) - 2, GTK_STYLE_REGION_TAB, _gtk_notebook_get_tab_flags (notebook, page)); return path; } static GType gtk_notebook_child_type (GtkContainer *container) { return GTK_TYPE_WIDGET; } /* Private GtkNotebook Methods: * * gtk_notebook_real_insert_page */ static void page_visible_cb (GtkWidget *page, GParamSpec *arg, gpointer data) { GtkNotebook *notebook = GTK_NOTEBOOK (data); GtkNotebookPrivate *priv = notebook->priv; GList *list; GList *next = NULL; if (priv->cur_page && priv->cur_page->child == page && !gtk_widget_get_visible (page)) { list = g_list_find (priv->children, priv->cur_page); if (list) { next = gtk_notebook_search_page (notebook, list, STEP_NEXT, TRUE); if (!next) next = gtk_notebook_search_page (notebook, list, STEP_PREV, TRUE); } if (next) gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (next)); } } static gint gtk_notebook_real_insert_page (GtkNotebook *notebook, GtkWidget *child, GtkWidget *tab_label, GtkWidget *menu_label, gint position) { GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; gint nchildren; GList *list; gtk_widget_freeze_child_notify (child); page = g_slice_new0 (GtkNotebookPage); page->child = child; nchildren = g_list_length (priv->children); if ((position < 0) || (position > nchildren)) position = nchildren; priv->children = g_list_insert (priv->children, page, position); if (!tab_label) { page->default_tab = TRUE; } page->tab_label = tab_label; page->menu_label = menu_label; page->expand = FALSE; page->fill = TRUE; if (!menu_label) page->default_menu = TRUE; else g_object_ref_sink (page->menu_label); if (priv->menu) gtk_notebook_menu_item_create (notebook, g_list_find (priv->children, page)); /* child visible will be turned on by switch_page below */ if (priv->cur_page != page) gtk_widget_set_child_visible (child, FALSE); 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 (!priv->first_tab) priv->first_tab = priv->children; if (tab_label) { if (priv->show_tabs && gtk_widget_get_visible (child)) gtk_widget_show (tab_label); else gtk_widget_hide (tab_label); page->mnemonic_activate_signal = g_signal_connect (tab_label, "mnemonic-activate", G_CALLBACK (gtk_notebook_mnemonic_activate_switch_page), notebook); } page->notify_visible_handler = g_signal_connect (child, "notify::visible", G_CALLBACK (page_visible_cb), notebook); g_signal_emit (notebook, notebook_signals[PAGE_ADDED], 0, child, position); if (!priv->cur_page) { gtk_notebook_switch_page (notebook, page); /* focus_tab is set in the switch_page method */ gtk_notebook_switch_focus_tab (notebook, priv->focus_tab); } gtk_notebook_update_tab_states (notebook); if (priv->scrollable) gtk_notebook_redraw_arrows (notebook); gtk_widget_child_notify (child, "tab-expand"); gtk_widget_child_notify (child, "tab-fill"); gtk_widget_child_notify (child, "tab-label"); gtk_widget_child_notify (child, "menu-label"); list = g_list_nth (priv->children, position); while (list) { gtk_widget_child_notify (((GtkNotebookPage *)list->data)->child, "position"); list = list->next; } gtk_widget_thaw_child_notify (child); /* The page-added handler might have reordered the pages, re-get the position */ return gtk_notebook_page_num (notebook, child); } /* Private GtkNotebook Functions: * * gtk_notebook_redraw_tabs * gtk_notebook_real_remove * gtk_notebook_update_labels * gtk_notebook_timer * gtk_notebook_set_scroll_timer * gtk_notebook_page_compare * gtk_notebook_search_page */ static void gtk_notebook_redraw_tabs (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; GtkAllocation allocation; GtkWidget *widget; GtkNotebookPage *page; GdkRectangle redraw_rect; gint border; gint tab_pos = get_effective_tab_pos (notebook); GtkBorder padding; widget = GTK_WIDGET (notebook); border = gtk_container_get_border_width (GTK_CONTAINER (notebook)); if (!gtk_widget_get_mapped (widget) || !priv->cur_page) return; page = priv->cur_page; redraw_rect.x = border; redraw_rect.y = border; gtk_widget_get_allocation (widget, &allocation); get_padding_and_border (notebook, &padding); switch (tab_pos) { case GTK_POS_BOTTOM: redraw_rect.y = allocation.height - border - page->allocation.height - padding.bottom; /* fall through */ case GTK_POS_TOP: redraw_rect.width = allocation.width - 2 * border; redraw_rect.height = page->allocation.height + padding.top; break; case GTK_POS_RIGHT: redraw_rect.x = allocation.width - border - page->allocation.width - padding.right; /* fall through */ case GTK_POS_LEFT: redraw_rect.width = page->allocation.width + padding.left; redraw_rect.height = allocation.height - 2 * border; break; } redraw_rect.x += allocation.x; redraw_rect.y += allocation.y; gdk_window_invalidate_rect (gtk_widget_get_window (widget), &redraw_rect, TRUE); } static void gtk_notebook_redraw_tabs_junction (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; GtkAllocation allocation; GtkWidget *widget; GtkNotebookPage *page; GdkRectangle redraw_rect; gint border; gint tab_pos = get_effective_tab_pos (notebook); GtkBorder padding; widget = GTK_WIDGET (notebook); border = gtk_container_get_border_width (GTK_CONTAINER (notebook)); if (!gtk_widget_get_mapped (widget) || !priv->cur_page) return; page = priv->cur_page; redraw_rect.x = border; redraw_rect.y = border; gtk_widget_get_allocation (widget, &allocation); get_padding_and_border (notebook, &padding); switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: redraw_rect.width = allocation.width - 2 * border; if (tab_pos == GTK_POS_TOP) { redraw_rect.y = border + page->allocation.y + page->allocation.height; redraw_rect.height = padding.top; } else { redraw_rect.y = allocation.height - border - page->allocation.height - padding.bottom; redraw_rect.height = padding.bottom; } break; case GTK_POS_LEFT: case GTK_POS_RIGHT: redraw_rect.height = allocation.height - 2 * border; if (tab_pos == GTK_POS_LEFT) { redraw_rect.x = border + page->allocation.x + page->allocation.width; redraw_rect.width = padding.left; } else { redraw_rect.x = allocation.width - border - page->allocation.width - padding.right; redraw_rect.width = padding.right; } break; } redraw_rect.x += allocation.x; redraw_rect.y += allocation.y; gdk_window_invalidate_rect (gtk_widget_get_window (widget), &redraw_rect, TRUE); } static void gtk_notebook_redraw_arrows (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; if (gtk_widget_get_mapped (GTK_WIDGET (notebook)) && gtk_notebook_show_arrows (notebook)) { GdkRectangle rect; gint i; GtkNotebookArrow arrow[4]; arrow[0] = priv->has_before_previous ? ARROW_LEFT_BEFORE : ARROW_NONE; arrow[1] = priv->has_before_next ? ARROW_RIGHT_BEFORE : ARROW_NONE; arrow[2] = priv->has_after_previous ? ARROW_LEFT_AFTER : ARROW_NONE; arrow[3] = priv->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_get_window (GTK_WIDGET (notebook)), &rect, FALSE); } } } static gboolean gtk_notebook_timer (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; gboolean retval = FALSE; if (priv->timer) { gtk_notebook_do_arrow (notebook, priv->click_child); if (priv->need_timer) { priv->need_timer = FALSE; priv->timer = gdk_threads_add_timeout (TIMEOUT_REPEAT * SCROLL_DELAY_FACTOR, (GSourceFunc) gtk_notebook_timer, (gpointer) notebook); g_source_set_name_by_id (priv->timer, "[gtk+] gtk_notebook_timer"); } else retval = TRUE; } return retval; } static void gtk_notebook_set_scroll_timer (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; if (!priv->timer) { priv->timer = gdk_threads_add_timeout (TIMEOUT_INITIAL, (GSourceFunc) gtk_notebook_timer, (gpointer) notebook); g_source_set_name_by_id (priv->timer, "[gtk+] gtk_notebook_timer"); priv->need_timer = TRUE; } } 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) { GtkNotebookPrivate *priv = notebook->priv; GList *list = g_list_find_custom (priv->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_flags (page->tab_label, 0, TRUE); if (gtk_widget_get_window (page->tab_label) != gtk_widget_get_window (GTK_WIDGET (notebook)) || !NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page)) { GtkWidget *parent; /* we hit this condition during dnd of a detached tab */ parent = gtk_widget_get_parent (page->tab_label); if (GTK_IS_WINDOW (parent)) gtk_container_remove (GTK_CONTAINER (parent), page->tab_label); else gtk_widget_unparent (page->tab_label); } else { gtk_widget_unparent (page->tab_label); } page->tab_label = NULL; } } static void gtk_notebook_real_remove (GtkNotebook *notebook, GList *list) { GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; GList * next_list; gint need_resize = FALSE; GtkWidget *tab_label; gboolean destroying; destroying = gtk_widget_in_destruction (GTK_WIDGET (notebook)); next_list = gtk_notebook_search_page (notebook, list, STEP_NEXT, TRUE); if (!next_list) next_list = gtk_notebook_search_page (notebook, list, STEP_PREV, TRUE); priv->children = g_list_remove_link (priv->children, list); if (priv->cur_page == list->data) { if (priv->cur_page->tab_label) gtk_style_context_remove_class (gtk_widget_get_style_context (priv->cur_page->tab_label), "active-page"); priv->cur_page = NULL; if (next_list && !destroying) gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (next_list)); } if (priv->detached_tab == list->data) priv->detached_tab = NULL; if (priv->prelight_tab == list->data) update_prelight_tab (notebook, NULL); if (priv->switch_tab == list) priv->switch_tab = NULL; if (list == priv->first_tab) priv->first_tab = next_list; if (list == priv->focus_tab && !destroying) gtk_notebook_switch_focus_tab (notebook, next_list); page = list->data; g_signal_handler_disconnect (page->child, page->notify_visible_handler); if (gtk_widget_get_visible (page->child) && gtk_widget_get_visible (GTK_WIDGET (notebook))) need_resize = TRUE; gtk_widget_unparent (page->child); tab_label = page->tab_label; if (tab_label) { g_object_ref (tab_label); gtk_notebook_remove_tab_label (notebook, page); if (destroying) gtk_widget_destroy (tab_label); g_object_unref (tab_label); } if (priv->menu) { GtkWidget *parent = gtk_widget_get_parent (page->menu_label); gtk_notebook_menu_label_unparent (parent, NULL); gtk_container_remove (GTK_CONTAINER (priv->menu), parent); gtk_widget_queue_resize (priv->menu); } if (!page->default_menu) g_object_unref (page->menu_label); 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_slice_free (GtkNotebookPage, page); gtk_notebook_update_labels (notebook); if (need_resize) gtk_widget_queue_resize (GTK_WIDGET (notebook)); } static void gtk_notebook_update_labels (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; GList *list; gchar string[32]; gint page_num = 1; if (!priv->show_tabs && !priv->menu) return; 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 (priv->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_get_visible (page->child) && !gtk_widget_get_visible (page->tab_label)) gtk_widget_show (page->tab_label); else if (!gtk_widget_get_visible (page->child) && gtk_widget_get_visible (page->tab_label)) gtk_widget_hide (page->tab_label); } if (priv->menu && page->default_menu) { if (GTK_IS_LABEL (page->tab_label)) gtk_label_set_text (GTK_LABEL (page->menu_label), gtk_label_get_label (GTK_LABEL (page->tab_label))); else gtk_label_set_text (GTK_LABEL (page->menu_label), string); } } } static GList * gtk_notebook_search_page (GtkNotebook *notebook, GList *list, gint direction, gboolean find_visible) { GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page = NULL; GList *old_list = NULL; if (list) page = list->data; if (!page || direction == STEP_NEXT) { if (list) { old_list = list; list = list->next; } else list = priv->children; while (list) { page = list->data; if (direction == STEP_NEXT && (!find_visible || (gtk_widget_get_visible (page->child) && (!page->tab_label || NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page))))) return list; old_list = list; list = list->next; } list = old_list; } else { old_list = list; list = list->prev; } while (list) { page = list->data; if (direction == STEP_PREV && (!find_visible || (gtk_widget_get_visible (page->child) && (!page->tab_label || NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page))))) 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, cairo_t *cr) { GtkNotebook *notebook; GtkNotebookPrivate *priv; GtkNotebookPage *page; GtkAllocation allocation; GList *children; gboolean showarrow; gint width, height; gint header_width, header_height; gint x, y; gint header_x, header_y; guint border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); gint gap_x = 0, gap_width = 0, step = STEP_PREV; gboolean is_rtl; gboolean has_tab_gap; gint tab_pos; GtkStyleContext *context; notebook = GTK_NOTEBOOK (widget); priv = notebook->priv; is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL; tab_pos = get_effective_tab_pos (notebook); context = gtk_widget_get_style_context (widget); showarrow = FALSE; if ((!priv->show_tabs && !priv->show_border) || !priv->cur_page || !gtk_widget_get_visible (priv->cur_page->child)) return; gtk_widget_get_allocation (widget, &allocation); x = allocation.x + border_width; y = allocation.y + border_width; width = allocation.width - border_width * 2; height = allocation.height - border_width * 2; if (priv->show_border && (!priv->show_tabs || !priv->children)) { gtk_style_context_save (context); gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME); gtk_render_background (context, cr, x, y, width, height); gtk_render_frame (context, cr, x, y, width, height); gtk_style_context_restore (context); return; } if (!priv->first_tab) priv->first_tab = priv->children; if (!gtk_widget_get_mapped (priv->cur_page->tab_label)) page = GTK_NOTEBOOK_PAGE (priv->first_tab); else page = priv->cur_page; header_x = x; header_y = y; header_width = width; header_height = height; gtk_style_context_save (context); switch (tab_pos) { case GTK_POS_TOP: gtk_style_context_add_class (context, GTK_STYLE_CLASS_TOP); y += page->allocation.height; height -= page->allocation.height; header_height = page->allocation.height; break; case GTK_POS_BOTTOM: gtk_style_context_add_class (context, GTK_STYLE_CLASS_BOTTOM); height -= page->allocation.height; header_y += height; header_height = page->allocation.height; break; case GTK_POS_LEFT: gtk_style_context_add_class (context, GTK_STYLE_CLASS_LEFT); x += page->allocation.width; width -= page->allocation.width; header_width = page->allocation.width; break; case GTK_POS_RIGHT: gtk_style_context_add_class (context, GTK_STYLE_CLASS_RIGHT); width -= page->allocation.width; header_width = page->allocation.width; header_x += width; break; } gtk_style_context_add_class (context, GTK_STYLE_CLASS_HEADER); if (priv->show_border) gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME); gtk_render_background (context, cr, header_x, header_y, header_width, header_height); gtk_render_frame (context, cr, header_x, header_y, header_width, header_height); gtk_style_context_restore (context); if (!NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, priv->cur_page) || !gtk_widget_get_mapped (priv->cur_page->tab_label)) { gap_x = 0; gap_width = 0; } else { switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: if (priv->operation == DRAG_OPERATION_REORDER) gap_x = priv->drag_window_x - allocation.x - border_width; else gap_x = priv->cur_page->allocation.x - allocation.x - border_width; gap_width = priv->cur_page->allocation.width; step = is_rtl ? STEP_PREV : STEP_NEXT; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: if (priv->operation == DRAG_OPERATION_REORDER) gap_x = priv->drag_window_y - border_width - allocation.y; else gap_x = priv->cur_page->allocation.y - allocation.y - border_width; gap_width = priv->cur_page->allocation.height; step = STEP_PREV; break; } } for (children = priv->children; children; children = children->next) { page = children->data; if (!gtk_widget_get_visible (page->child)) continue; if (!gtk_widget_get_mapped (page->tab_label)) showarrow = TRUE; /* No point in keeping searching */ if (showarrow) break; } gtk_style_context_save (context); if (!showarrow || !priv->scrollable) { GtkJunctionSides junction = 0; /* Apply junction sides, if no arrows are shown, * then make corners with connecting tabs square. */ switch (tab_pos) { case GTK_POS_TOP: junction |= (is_rtl) ? GTK_JUNCTION_CORNER_TOPRIGHT : GTK_JUNCTION_CORNER_TOPLEFT; break; case GTK_POS_BOTTOM: junction |= (is_rtl) ? GTK_JUNCTION_CORNER_BOTTOMRIGHT : GTK_JUNCTION_CORNER_BOTTOMLEFT; break; case GTK_POS_LEFT: junction |= GTK_JUNCTION_CORNER_TOPLEFT; break; case GTK_POS_RIGHT: junction |= GTK_JUNCTION_CORNER_TOPRIGHT; break; } gtk_style_context_set_junction_sides (context, junction); } gtk_widget_style_get (GTK_WIDGET (notebook), "has-tab-gap", &has_tab_gap, NULL); if (priv->show_border) gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME); gtk_render_background (context, cr, x, y, width, height); if (has_tab_gap) gtk_render_frame_gap (context, cr, x, y, width, height, tab_pos, gap_x, gap_x + gap_width); else gtk_render_frame (context, cr, x, y, width, height); gtk_style_context_restore (context); children = gtk_notebook_search_page (notebook, NULL, step, TRUE); while (children) { page = children->data; if (page == priv->cur_page) break; children = gtk_notebook_search_page (notebook, children, step, TRUE); if (!gtk_widget_get_visible (page->child) || !gtk_widget_get_mapped (page->tab_label)) continue; gtk_notebook_draw_tab (notebook, page, cr, TRUE); } if (children != NULL) { GList *other_order = NULL; while (children) { page = children->data; children = gtk_notebook_search_page (notebook, children, step, TRUE); if (!gtk_widget_get_visible (page->child) || !gtk_widget_get_mapped (page->tab_label)) continue; if (children != NULL) other_order = g_list_prepend (other_order, children->data); } /* draw them with the opposite order */ for (children = other_order; children; children = children->next) { page = children->data; gtk_notebook_draw_tab (notebook, page, cr, TRUE); } g_list_free (other_order); } if (showarrow && priv->scrollable) { if (priv->has_before_previous) gtk_notebook_draw_arrow (notebook, cr, ARROW_LEFT_BEFORE); if (priv->has_before_next) gtk_notebook_draw_arrow (notebook, cr, ARROW_RIGHT_BEFORE); if (priv->has_after_previous) gtk_notebook_draw_arrow (notebook, cr, ARROW_LEFT_AFTER); if (priv->has_after_next) gtk_notebook_draw_arrow (notebook, cr, ARROW_RIGHT_AFTER); } if (priv->operation != DRAG_OPERATION_REORDER) gtk_notebook_draw_tab (notebook, priv->cur_page, cr, TRUE); } static void gtk_notebook_draw_tab (GtkNotebook *notebook, GtkNotebookPage *page, cairo_t *cr, gboolean use_flags) { GtkNotebookPrivate *priv; GtkWidget *widget; GtkStyleContext *context; gboolean has_tab_gap; if (!NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) || !gtk_widget_get_mapped (page->tab_label) || (page->allocation.width == 0) || (page->allocation.height == 0)) return; widget = GTK_WIDGET (notebook); priv = notebook->priv; context = gtk_widget_get_style_context (widget); gtk_style_context_save (context); notebook_tab_prepare_style_context (notebook, page, context, use_flags); gtk_widget_style_get (GTK_WIDGET (notebook), "has-tab-gap", &has_tab_gap, NULL); if (has_tab_gap) { gtk_render_extension (context, cr, page->allocation.x, page->allocation.y, page->allocation.width, page->allocation.height, get_tab_gap_pos (notebook)); } else { gtk_render_background (context, cr, page->allocation.x, page->allocation.y, page->allocation.width, page->allocation.height); gtk_render_frame (context, cr, page->allocation.x, page->allocation.y, page->allocation.width, page->allocation.height); } if (gtk_widget_has_visible_focus (widget) && priv->cur_page == page) { GtkAllocation allocation; gtk_widget_get_allocation (page->tab_label, &allocation); gtk_render_focus (context, cr, allocation.x, allocation.y, allocation.width, allocation.height); } gtk_style_context_restore (context); } static void gtk_notebook_draw_arrow (GtkNotebook *notebook, cairo_t *cr, GtkNotebookArrow nbarrow) { GtkNotebookPrivate *priv = notebook->priv; GtkStyleContext *context; GtkStateFlags state = 0; GtkWidget *widget; GdkRectangle arrow_rect; gboolean is_rtl, left; gint scroll_arrow_hlength; gint scroll_arrow_vlength; gint arrow_size; gdouble angle; widget = GTK_WIDGET (notebook); context = gtk_widget_get_style_context (widget); state = gtk_widget_get_state_flags (widget); gtk_notebook_get_arrow_rect (notebook, &arrow_rect, nbarrow); is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL; left = (ARROW_IS_LEFT (nbarrow) && !is_rtl) || (!ARROW_IS_LEFT (nbarrow) && is_rtl); gtk_widget_style_get (widget, "scroll-arrow-hlength", &scroll_arrow_hlength, "scroll-arrow-vlength", &scroll_arrow_vlength, NULL); if (priv->focus_tab && !gtk_notebook_search_page (notebook, priv->focus_tab, left ? STEP_PREV : STEP_NEXT, TRUE)) { state |= GTK_STATE_FLAG_INSENSITIVE; } else if (priv->in_child == nbarrow) { state |= GTK_STATE_FLAG_PRELIGHT; if (priv->click_child == nbarrow) state |= GTK_STATE_FLAG_ACTIVE; } if (priv->tab_pos == GTK_POS_LEFT || priv->tab_pos == GTK_POS_RIGHT) { angle = (ARROW_IS_LEFT (nbarrow)) ? 0 : G_PI; arrow_size = scroll_arrow_vlength; } else { angle = (ARROW_IS_LEFT (nbarrow)) ? 3 * (G_PI / 2) : G_PI / 2; arrow_size = scroll_arrow_hlength; } gtk_style_context_save (context); gtk_style_context_set_state (context, state); gtk_render_arrow (context, cr, angle, arrow_rect.x, arrow_rect.y, arrow_size); gtk_style_context_restore (context); } /* Private GtkNotebook Size Allocate Functions: * * gtk_notebook_tab_space * gtk_notebook_calculate_shown_tabs * gtk_notebook_calculate_tabs_allocation * gtk_notebook_pages_allocate * gtk_notebook_page_allocate * gtk_notebook_calc_tabs */ static void gtk_notebook_tab_space (GtkNotebook *notebook, gboolean *show_arrows, gint *min, gint *max, gint *tab_space) { GtkNotebookPrivate *priv = notebook->priv; GtkAllocation allocation, action_allocation; GtkWidget *widget; GList *children; gint tab_pos = get_effective_tab_pos (notebook); gint tab_overlap; gint arrow_spacing; gint scroll_arrow_hlength; gint scroll_arrow_vlength; gboolean is_rtl; gint i; guint border_width; GtkBorder padding; gint initial_gap; widget = GTK_WIDGET (notebook); children = priv->children; is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL; gtk_widget_style_get (GTK_WIDGET (notebook), "arrow-spacing", &arrow_spacing, "scroll-arrow-hlength", &scroll_arrow_hlength, "scroll-arrow-vlength", &scroll_arrow_vlength, "initial-gap", &initial_gap, NULL); border_width = gtk_container_get_border_width (GTK_CONTAINER (notebook)); get_padding_and_border (notebook, &padding); gtk_widget_get_allocation (widget, &allocation); switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: *min = allocation.x + border_width; *max = allocation.x + allocation.width - border_width; for (i = 0; i < N_ACTION_WIDGETS; i++) { if (priv->action_widget[i]) { gtk_widget_get_allocation (priv->action_widget[i], &action_allocation); if ((i == ACTION_WIDGET_START && !is_rtl) || (i == ACTION_WIDGET_END && is_rtl)) *min += action_allocation.width + padding.left; else *max -= action_allocation.width + padding.right; } } while (children) { GtkNotebookPage *page; page = children->data; children = children->next; if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) && gtk_widget_get_visible (page->child)) *tab_space += page->requisition.width; } break; case GTK_POS_RIGHT: case GTK_POS_LEFT: *min = allocation.y + border_width; *max = allocation.y + allocation.height - border_width; for (i = 0; i < N_ACTION_WIDGETS; i++) { if (priv->action_widget[i]) { gtk_widget_get_allocation (priv->action_widget[i], &action_allocation); if (i == ACTION_WIDGET_START) *min += action_allocation.height + padding.top; else *max -= action_allocation.height + padding.bottom; } } while (children) { GtkNotebookPage *page; page = children->data; children = children->next; if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) && gtk_widget_get_visible (page->child)) *tab_space += page->requisition.height; } break; } *min += initial_gap; *max -= initial_gap; if (!priv->scrollable) *show_arrows = FALSE; else { gtk_widget_style_get (widget, "tab-overlap", &tab_overlap, NULL); switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: if (*tab_space > *max - *min - tab_overlap) { *show_arrows = TRUE; /* take arrows into account */ *tab_space = *max - *min - tab_overlap; if (priv->has_after_previous) { *tab_space -= arrow_spacing + scroll_arrow_hlength; *max -= arrow_spacing + scroll_arrow_hlength; } if (priv->has_after_next) { *tab_space -= arrow_spacing + scroll_arrow_hlength; *max -= arrow_spacing + scroll_arrow_hlength; } if (priv->has_before_previous) { *tab_space -= arrow_spacing + scroll_arrow_hlength; *min += arrow_spacing + scroll_arrow_hlength; } if (priv->has_before_next) { *tab_space -= arrow_spacing + scroll_arrow_hlength; *min += arrow_spacing + scroll_arrow_hlength; } } break; case GTK_POS_LEFT: case GTK_POS_RIGHT: if (*tab_space > *max - *min - tab_overlap) { *show_arrows = TRUE; /* take arrows into account */ *tab_space = *max - *min - tab_overlap; if (priv->has_after_previous || priv->has_after_next) { *tab_space -= arrow_spacing + scroll_arrow_vlength; *max -= arrow_spacing + scroll_arrow_vlength; } if (priv->has_before_previous || priv->has_before_next) { *tab_space -= arrow_spacing + scroll_arrow_vlength; *min += arrow_spacing + scroll_arrow_vlength; } } break; } } } static void gtk_notebook_calculate_shown_tabs (GtkNotebook *notebook, gboolean show_arrows, gint min, gint max, gint tab_space, GList **last_child, gint *n, gint *remaining_space) { GtkNotebookPrivate *priv = notebook->priv; GtkWidget *widget; GList *children; GtkNotebookPage *page; gint tab_overlap; widget = GTK_WIDGET (notebook); gtk_widget_style_get (widget, "tab-overlap", &tab_overlap, NULL); if (show_arrows) /* first_tab <- focus_tab */ { *remaining_space = tab_space; if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, priv->cur_page) && gtk_widget_get_visible (priv->cur_page->child)) { gtk_notebook_calc_tabs (notebook, priv->focus_tab, &(priv->focus_tab), remaining_space, STEP_NEXT); } if (tab_space <= 0 || *remaining_space <= 0) { /* show 1 tab */ priv->first_tab = priv->focus_tab; *last_child = gtk_notebook_search_page (notebook, priv->focus_tab, STEP_NEXT, TRUE); page = priv->first_tab->data; *remaining_space = tab_space - page->requisition.width; *n = 1; } else { children = NULL; if (priv->first_tab && priv->first_tab != priv->focus_tab) { /* Is first_tab really predecessor of focus_tab? */ page = priv->first_tab->data; if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) && gtk_widget_get_visible (page->child)) for (children = priv->focus_tab; children && children != priv->first_tab; children = gtk_notebook_search_page (notebook, children, STEP_PREV, TRUE)); } if (!children) { if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, priv->cur_page)) priv->first_tab = priv->focus_tab; else priv->first_tab = gtk_notebook_search_page (notebook, priv->focus_tab, STEP_NEXT, TRUE); } else /* calculate shown tabs counting backwards from the focus tab */ gtk_notebook_calc_tabs (notebook, gtk_notebook_search_page (notebook, priv->focus_tab, STEP_PREV, TRUE), &(priv->first_tab), remaining_space, STEP_PREV); if (*remaining_space < 0) { priv->first_tab = gtk_notebook_search_page (notebook, priv->first_tab, STEP_NEXT, TRUE); if (!priv->first_tab) priv->first_tab = priv->focus_tab; *last_child = gtk_notebook_search_page (notebook, priv->focus_tab, STEP_NEXT, TRUE); } else /* focus_tab -> end */ { if (!priv->first_tab) priv->first_tab = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE); children = NULL; gtk_notebook_calc_tabs (notebook, gtk_notebook_search_page (notebook, priv->focus_tab, STEP_NEXT, TRUE), &children, remaining_space, STEP_NEXT); if (*remaining_space <= 0) *last_child = children; else /* start <- first_tab */ { *last_child = NULL; children = NULL; gtk_notebook_calc_tabs (notebook, gtk_notebook_search_page (notebook, priv->first_tab, STEP_PREV, TRUE), &children, remaining_space, STEP_PREV); if (*remaining_space == 0) priv->first_tab = children; else priv->first_tab = gtk_notebook_search_page(notebook, children, STEP_NEXT, TRUE); } } if (*remaining_space < 0) { /* calculate number of tabs */ *remaining_space = - (*remaining_space); *n = 0; for (children = priv->first_tab; children && children != *last_child; children = gtk_notebook_search_page (notebook, children, STEP_NEXT, TRUE)) (*n)++; } else *remaining_space = 0; } /* unmap all non-visible tabs */ for (children = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE); children && children != priv->first_tab; children = gtk_notebook_search_page (notebook, children, STEP_NEXT, TRUE)) { page = children->data; if (page->tab_label && NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page)) 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 && NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page)) gtk_widget_set_child_visible (page->tab_label, FALSE); } } else /* !show_arrows */ { GtkOrientation tab_expand_orientation; gint c = 0; *n = 0; if (priv->tab_pos == GTK_POS_TOP || priv->tab_pos == GTK_POS_BOTTOM) tab_expand_orientation = GTK_ORIENTATION_HORIZONTAL; else tab_expand_orientation = GTK_ORIENTATION_VERTICAL; *remaining_space = max - min - tab_overlap - tab_space; children = priv->children; priv->first_tab = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE); while (children) { page = children->data; children = children->next; if (!NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) || !gtk_widget_get_visible (page->child)) continue; c++; if (page->expand || (gtk_widget_compute_expand (page->tab_label, tab_expand_orientation))) (*n)++; } } } static gboolean get_allocate_at_bottom (GtkWidget *widget, gint search_direction) { gboolean is_rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL); gboolean tab_pos = get_effective_tab_pos (GTK_NOTEBOOK (widget)); switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: if (!is_rtl) return (search_direction == STEP_PREV); else return (search_direction == STEP_NEXT); break; case GTK_POS_RIGHT: case GTK_POS_LEFT: return (search_direction == STEP_PREV); break; } return FALSE; } static void gtk_notebook_calculate_tabs_allocation (GtkNotebook *notebook, GList **children, GList *last_child, gboolean showarrow, gint direction, gint *remaining_space, gint *expanded_tabs, gint min, gint max) { GtkNotebookPrivate *priv = notebook->priv; GtkAllocation allocation; GtkWidget *widget; GtkContainer *container; GtkNotebookPage *page; GtkStyleContext *context; gboolean allocate_at_bottom; gint tab_overlap, tab_pos, tab_extra_space; gint left_x, right_x, top_y, bottom_y, anchor; guint border_width; gboolean gap_left, packing_changed; GtkAllocation child_allocation = { 0, }; GtkOrientation tab_expand_orientation; widget = GTK_WIDGET (notebook); container = GTK_CONTAINER (notebook); gtk_widget_style_get (widget, "tab-overlap", &tab_overlap, NULL); tab_pos = get_effective_tab_pos (notebook); allocate_at_bottom = get_allocate_at_bottom (widget, direction); anchor = 0; gtk_widget_get_allocation (widget, &allocation); border_width = gtk_container_get_border_width (container); child_allocation.x = allocation.x + border_width; child_allocation.y = allocation.y + border_width; context = gtk_widget_get_style_context (widget); switch (tab_pos) { case GTK_POS_BOTTOM: child_allocation.y = allocation.y + allocation.height - priv->cur_page->requisition.height - border_width; /* fall through */ case GTK_POS_TOP: child_allocation.x = (allocate_at_bottom) ? max : min; child_allocation.height = priv->cur_page->requisition.height; anchor = child_allocation.x; break; case GTK_POS_RIGHT: child_allocation.x = allocation.x + allocation.width - priv->cur_page->requisition.width - border_width; /* fall through */ case GTK_POS_LEFT: child_allocation.y = (allocate_at_bottom) ? max : min; child_allocation.width = priv->cur_page->requisition.width; anchor = child_allocation.y; break; } left_x = CLAMP (priv->mouse_x - priv->drag_offset_x, min, max - priv->cur_page->allocation.width); top_y = CLAMP (priv->mouse_y - priv->drag_offset_y, min, max - priv->cur_page->allocation.height); right_x = left_x + priv->cur_page->allocation.width; bottom_y = top_y + priv->cur_page->allocation.height; gap_left = packing_changed = FALSE; if (priv->tab_pos == GTK_POS_TOP || priv->tab_pos == GTK_POS_BOTTOM) tab_expand_orientation = GTK_ORIENTATION_HORIZONTAL; else tab_expand_orientation = GTK_ORIENTATION_VERTICAL; while (*children && *children != last_child) { page = (*children)->data; if (direction == STEP_NEXT) *children = gtk_notebook_search_page (notebook, *children, direction, TRUE); else { *children = (*children)->next; continue; } if (!NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page)) continue; tab_extra_space = 0; if (*expanded_tabs && (showarrow || page->expand || gtk_widget_compute_expand (page->tab_label, tab_expand_orientation))) { tab_extra_space = *remaining_space / *expanded_tabs; *remaining_space -= tab_extra_space; (*expanded_tabs)--; } switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: child_allocation.width = MAX (1, page->requisition.width + tab_overlap + tab_extra_space); /* make sure that the reordered tab doesn't go past the last position */ if (priv->operation == DRAG_OPERATION_REORDER && !gap_left && packing_changed) { if (!allocate_at_bottom) { if (left_x >= anchor) { left_x = priv->drag_window_x = anchor; anchor += priv->cur_page->allocation.width - tab_overlap; } } else { if (right_x <= anchor) { anchor -= priv->cur_page->allocation.width; left_x = priv->drag_window_x = anchor; anchor += tab_overlap; } } gap_left = TRUE; } if (priv->operation == DRAG_OPERATION_REORDER && page == priv->cur_page) { priv->drag_window_x = left_x; priv->drag_window_y = child_allocation.y; } else { if (allocate_at_bottom) anchor -= child_allocation.width; if (priv->operation == DRAG_OPERATION_REORDER) { if (!allocate_at_bottom && left_x >= anchor && left_x <= anchor + child_allocation.width / 2) anchor += priv->cur_page->allocation.width - tab_overlap; else if (allocate_at_bottom && right_x >= anchor + child_allocation.width / 2 && right_x <= anchor + child_allocation.width) anchor -= priv->cur_page->allocation.width - tab_overlap; } child_allocation.x = anchor; } break; case GTK_POS_LEFT: case GTK_POS_RIGHT: child_allocation.height = MAX (1, page->requisition.height + tab_overlap + tab_extra_space); /* make sure that the reordered tab doesn't go past the last position */ if (priv->operation == DRAG_OPERATION_REORDER && !gap_left && packing_changed) { if (!allocate_at_bottom && top_y >= anchor) { top_y = priv->drag_window_y = anchor; anchor += priv->cur_page->allocation.height - tab_overlap; } gap_left = TRUE; } if (priv->operation == DRAG_OPERATION_REORDER && page == priv->cur_page) { priv->drag_window_x = child_allocation.x; priv->drag_window_y = top_y; } else { if (allocate_at_bottom) anchor -= child_allocation.height; if (priv->operation == DRAG_OPERATION_REORDER) { if (!allocate_at_bottom && top_y >= anchor && top_y <= anchor + child_allocation.height / 2) anchor += priv->cur_page->allocation.height - tab_overlap; else if (allocate_at_bottom && bottom_y >= anchor + child_allocation.height / 2 && bottom_y <= anchor + child_allocation.height) anchor -= priv->cur_page->allocation.height - tab_overlap; } child_allocation.y = anchor; } break; } page->allocation = child_allocation; if ((page == priv->detached_tab && priv->operation == DRAG_OPERATION_DETACH) || (page == priv->cur_page && priv->operation == DRAG_OPERATION_REORDER)) { /* needs to be allocated at 0,0 * to be shown in the drag window */ page->allocation.x = 0; page->allocation.y = 0; } if (page != priv->cur_page) { GtkBorder active_padding, normal_padding, padding; /* The active tab is by definition at least the same height as the inactive one. * The padding we're building is the offset between the two tab states, * so in case the style specifies normal_padding > active_padding we * remove the offset and draw them with the same height. * Note that the padding will still be applied to the tab content though, * see gtk_notebook_page_allocate(). */ gtk_style_context_save (context); notebook_tab_prepare_style_context (notebook, page, context, TRUE); gtk_style_context_get_padding (context, GTK_STATE_FLAG_ACTIVE, &active_padding); gtk_style_context_get_padding (context, GTK_STATE_FLAG_NORMAL, &normal_padding); gtk_style_context_restore (context); padding.top = MAX (0, active_padding.top - normal_padding.top); padding.right = MAX (0, active_padding.right - normal_padding.right); padding.bottom = MAX (0, active_padding.bottom - normal_padding.bottom); padding.left = MAX (0, active_padding.left - normal_padding.left); switch (tab_pos) { case GTK_POS_TOP: page->allocation.y += padding.top + padding.bottom; page->allocation.height = MAX (1, page->allocation.height - padding.top - padding.bottom); break; case GTK_POS_BOTTOM: page->allocation.height = MAX (1, page->allocation.height - padding.top - padding.bottom); break; case GTK_POS_LEFT: page->allocation.x += padding.left + padding.right; page->allocation.width = MAX (1, page->allocation.width - padding.left - padding.right); break; case GTK_POS_RIGHT: page->allocation.width = MAX (1, page->allocation.width - padding.left - padding.right); break; } } /* calculate whether to leave a gap based on reorder operation or not */ switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: if (priv->operation != DRAG_OPERATION_REORDER || (priv->operation == DRAG_OPERATION_REORDER && page != priv->cur_page)) { if (priv->operation == DRAG_OPERATION_REORDER) { if (!allocate_at_bottom && left_x > anchor + child_allocation.width / 2 && left_x <= anchor + child_allocation.width) anchor += priv->cur_page->allocation.width - tab_overlap; else if (allocate_at_bottom && right_x >= anchor && right_x <= anchor + child_allocation.width / 2) anchor -= priv->cur_page->allocation.width - tab_overlap; } if (!allocate_at_bottom) anchor += child_allocation.width - tab_overlap; else anchor += tab_overlap; } break; case GTK_POS_LEFT: case GTK_POS_RIGHT: if (priv->operation != DRAG_OPERATION_REORDER || (priv->operation == DRAG_OPERATION_REORDER && page != priv->cur_page)) { if (priv->operation == DRAG_OPERATION_REORDER) { if (!allocate_at_bottom && top_y >= anchor + child_allocation.height / 2 && top_y <= anchor + child_allocation.height) anchor += priv->cur_page->allocation.height - tab_overlap; else if (allocate_at_bottom && bottom_y >= anchor && bottom_y <= anchor + child_allocation.height / 2) anchor -= priv->cur_page->allocation.height - tab_overlap; } if (!allocate_at_bottom) anchor += child_allocation.height - tab_overlap; else anchor += tab_overlap; } break; } /* set child visible */ if (page->tab_label) gtk_widget_set_child_visible (page->tab_label, TRUE); } /* Don't move the current tab past the last position during tabs reordering */ if (children && priv->operation == DRAG_OPERATION_REORDER && direction == STEP_NEXT) { switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: if (allocate_at_bottom) anchor -= priv->cur_page->allocation.width; if ((!allocate_at_bottom && priv->drag_window_x > anchor) || (allocate_at_bottom && priv->drag_window_x < anchor)) priv->drag_window_x = anchor; break; case GTK_POS_LEFT: case GTK_POS_RIGHT: if (allocate_at_bottom) anchor -= priv->cur_page->allocation.height; if ((!allocate_at_bottom && priv->drag_window_y > anchor) || (allocate_at_bottom && priv->drag_window_y < anchor)) priv->drag_window_y = anchor; break; } } } static void gtk_notebook_pages_allocate (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; GList *children = NULL; GList *last_child = NULL; gboolean showarrow = FALSE; gint tab_space, min, max, remaining_space; gint expanded_tabs; gboolean tab_allocations_changed = FALSE; if (!priv->show_tabs || !priv->children || !priv->cur_page) return; min = max = tab_space = remaining_space = 0; expanded_tabs = 1; gtk_notebook_tab_space (notebook, &showarrow, &min, &max, &tab_space); gtk_notebook_calculate_shown_tabs (notebook, showarrow, min, max, tab_space, &last_child, &expanded_tabs, &remaining_space); children = priv->first_tab; gtk_notebook_calculate_tabs_allocation (notebook, &children, last_child, showarrow, STEP_NEXT, &remaining_space, &expanded_tabs, min, max); if (children && children != last_child) { children = priv->children; gtk_notebook_calculate_tabs_allocation (notebook, &children, last_child, showarrow, STEP_PREV, &remaining_space, &expanded_tabs, min, max); } children = priv->children; while (children) { if (gtk_notebook_page_allocate (notebook, GTK_NOTEBOOK_PAGE (children))) tab_allocations_changed = TRUE; children = children->next; } if (!priv->first_tab) priv->first_tab = priv->children; if (tab_allocations_changed) gtk_notebook_redraw_tabs (notebook); } static gboolean gtk_notebook_page_allocate (GtkNotebook *notebook, GtkNotebookPage *page) { GtkWidget *widget = GTK_WIDGET (notebook); GtkNotebookPrivate *priv = notebook->priv; GtkAllocation child_allocation, label_allocation; GtkRequisition tab_requisition; GtkStyleContext *context; gint padding; gint tab_curvature, tab_overlap; gint tab_pos = get_effective_tab_pos (notebook); gboolean tab_allocation_changed; gboolean was_visible = page->tab_allocated_visible; GtkBorder tab_padding; GtkStateFlags state; if (!page->tab_label || !gtk_widget_get_visible (page->tab_label) || !gtk_widget_get_child_visible (page->tab_label)) { page->tab_allocated_visible = FALSE; return was_visible; } context = gtk_widget_get_style_context (widget); gtk_style_context_save (context); state = notebook_tab_prepare_style_context (notebook, page, context, TRUE); gtk_style_context_get_padding (context, state, &tab_padding); gtk_widget_get_preferred_size (page->tab_label, &tab_requisition, NULL); gtk_widget_style_get (widget, "tab-curvature", &tab_curvature, "tab-overlap", &tab_overlap, NULL); switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: padding = tab_curvature; if (page->fill) { child_allocation.x = tab_padding.left + padding; child_allocation.width = MAX (1, (page->allocation.width - tab_padding.left - tab_padding.right - 2 * (padding))); child_allocation.x += page->allocation.x; /* if we're drawing an inactive page, trim the allocation width * for the children by the difference between tab-curvature * and tab-overlap. * if we're after the active tab, we need to trim the x * coordinate of the allocation too, to position it after * the end of the overlap. */ if (page != priv->cur_page && tab_overlap > tab_curvature + MIN (tab_padding.left, tab_padding.right)) { if (gtk_notebook_page_num (notebook, page->child) > gtk_notebook_page_num (notebook, priv->cur_page->child)) { child_allocation.x += tab_overlap - tab_curvature - tab_padding.left; child_allocation.width -= tab_overlap - tab_curvature - tab_padding.left; } else { child_allocation.width -= tab_overlap - tab_curvature - tab_padding.right; } } } else { child_allocation.x = page->allocation.x + (page->allocation.width - tab_requisition.width) / 2; child_allocation.width = tab_requisition.width; } child_allocation.y = page->allocation.y + tab_padding.top; child_allocation.height = MAX (1, (page->allocation.height - tab_padding.top - tab_padding.bottom)); break; case GTK_POS_LEFT: case GTK_POS_RIGHT: padding = tab_curvature; if (page->fill) { child_allocation.y = tab_padding.top + padding; child_allocation.height = MAX (1, (page->allocation.height - tab_padding.bottom - tab_padding.top - 2 * padding)); child_allocation.y += page->allocation.y; /* if we're drawing an inactive page, trim the allocation height * for the children by the difference between tab-curvature * and tab-overlap. * if we're after the active tab, we need to trim the y * coordinate of the allocation too, to position it after * the end of the overlap. */ if (page != priv->cur_page && tab_overlap > tab_curvature + MIN (tab_padding.top, tab_padding.bottom)) { if (gtk_notebook_page_num (notebook, page->child) > gtk_notebook_page_num (notebook, priv->cur_page->child)) { child_allocation.y += tab_overlap - tab_curvature - tab_padding.top; child_allocation.height -= tab_overlap - tab_curvature - tab_padding.top; } else { child_allocation.height -= tab_overlap - tab_curvature - tab_padding.bottom; } } } 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 + tab_padding.left; child_allocation.width = MAX (1, (page->allocation.width - tab_padding.left - tab_padding.right)); break; } gtk_widget_get_allocation (page->tab_label, &label_allocation); tab_allocation_changed = (child_allocation.x != label_allocation.x || child_allocation.y != label_allocation.y || child_allocation.width != label_allocation.width || child_allocation.height != label_allocation.height); gtk_widget_size_allocate (page->tab_label, &child_allocation); if (!was_visible) { page->tab_allocated_visible = TRUE; tab_allocation_changed = TRUE; } gtk_style_context_restore (context); return tab_allocation_changed; } static void gtk_notebook_calc_tabs (GtkNotebook *notebook, GList *start, GList **end, gint *tab_space, guint direction) { GtkNotebookPage *page = NULL; GList *children; GList *last_calculated_child = NULL; gint tab_pos = get_effective_tab_pos (notebook); if (!start) return; children = start; switch (tab_pos) { case GTK_POS_TOP: case GTK_POS_BOTTOM: while (children) { page = children->data; if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) && gtk_widget_get_visible (page->child)) { *tab_space -= page->requisition.width; if (*tab_space < 0 || children == *end) { if (*tab_space < 0) { *tab_space = - (*tab_space + page->requisition.width); if (*tab_space == 0 && direction == STEP_PREV) children = last_calculated_child; *end = children; } return; } last_calculated_child = 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 (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) && gtk_widget_get_visible (page->child)) { *tab_space -= page->requisition.height; if (*tab_space < 0 || children == *end) { if (*tab_space < 0) { *tab_space = - (*tab_space + page->requisition.height); if (*tab_space == 0 && direction == STEP_PREV) children = last_calculated_child; *end = children; } return; } last_calculated_child = children; } if (direction == STEP_NEXT) children = children->next; else children = children->prev; } break; } } static void gtk_notebook_update_tab_states (GtkNotebook *notebook) { GtkNotebookPrivate *priv = notebook->priv; GList *list; int pos; pos = gtk_widget_path_length (gtk_widget_get_path (GTK_WIDGET (notebook))) - 1; for (list = priv->children; list != NULL; list = list->next) { GtkNotebookPage *page = list->data; if (page->tab_label) { GtkRegionFlags current_flags; /* FIXME: We should store these flags somewhere instead of poking * the widget's path */ if (!gtk_widget_path_iter_has_region (gtk_widget_get_path (page->tab_label), pos, GTK_STYLE_REGION_TAB, ¤t_flags) || current_flags != _gtk_notebook_get_tab_flags (notebook, page)) _gtk_widget_invalidate_style_context (page->tab_label, GTK_CSS_CHANGE_PARENT_STATE); } } } /* Private GtkNotebook Page Switch Methods: * * gtk_notebook_real_switch_page */ static void gtk_notebook_real_switch_page (GtkNotebook *notebook, GtkWidget* child, guint page_num) { GtkNotebookPrivate *priv = notebook->priv; GList *list = gtk_notebook_find_child (notebook, GTK_WIDGET (child), NULL); GtkNotebookPage *page = GTK_NOTEBOOK_PAGE (list); gboolean child_has_focus; if (priv->cur_page == page || !gtk_widget_get_visible (GTK_WIDGET (child))) return; /* save the value here, changing visibility changes focus */ child_has_focus = priv->child_has_focus; if (priv->cur_page) { gtk_widget_set_child_visible (priv->cur_page->child, FALSE); if (priv->cur_page->tab_label) gtk_style_context_remove_class (gtk_widget_get_style_context (priv->cur_page->tab_label), "active-page"); } priv->cur_page = page; if (page->tab_label) gtk_style_context_add_class (gtk_widget_get_style_context (page->tab_label), "active-page"); if (!priv->focus_tab || priv->focus_tab->data != (gpointer) priv->cur_page) priv->focus_tab = g_list_find (priv->children, priv->cur_page); gtk_widget_set_child_visible (priv->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 (child_has_focus) { if (priv->cur_page->last_focus_child && gtk_widget_is_ancestor (priv->cur_page->last_focus_child, priv->cur_page->child)) gtk_widget_grab_focus (priv->cur_page->last_focus_child); else if (!gtk_widget_child_focus (priv->cur_page->child, GTK_DIR_TAB_FORWARD)) gtk_widget_grab_focus (GTK_WIDGET (notebook)); } gtk_notebook_update_tab_states (notebook); gtk_notebook_pages_allocate (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) { GtkNotebookPrivate *priv = notebook->priv; guint page_num; if (priv->cur_page == page) return; page_num = g_list_index (priv->children, page); g_signal_emit (notebook, notebook_signals[SWITCH_PAGE], 0, page->child, page_num); } static gint gtk_notebook_page_select (GtkNotebook *notebook, gboolean move_focus) { GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; GtkDirectionType dir = GTK_DIR_DOWN; /* Quiet GCC */ gint tab_pos = get_effective_tab_pos (notebook); if (!priv->focus_tab) return FALSE; page = priv->focus_tab->data; gtk_notebook_switch_page (notebook, page); 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) { GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; if (priv->focus_tab == new_child) return; priv->focus_tab = new_child; if (priv->scrollable) gtk_notebook_redraw_arrows (notebook); if (!priv->show_tabs || !priv->focus_tab) return; page = priv->focus_tab->data; gtk_notebook_switch_page (notebook, page); } static void gtk_notebook_menu_switch_page (GtkWidget *widget, GtkNotebookPage *page) { GtkNotebookPrivate *priv; GtkNotebook *notebook; GtkWidget *parent; GList *children; guint page_num; parent = gtk_widget_get_parent (widget); notebook = GTK_NOTEBOOK (gtk_menu_get_attach_widget (GTK_MENU (parent))); priv = notebook->priv; if (priv->cur_page == page) return; page_num = 0; children = priv->children; while (children && children->data != page) { children = children->next; page_num++; } g_signal_emit (notebook, notebook_signals[SWITCH_PAGE], 0, page->child, 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) { GtkNotebookPrivate *priv = notebook->priv; GtkNotebookPage *page; GtkWidget *menu_item; page = list->data; if (page->default_menu) { if (GTK_IS_LABEL (page->tab_label)) page->menu_label = gtk_label_new (gtk_label_get_label (GTK_LABEL (page->tab_label))); else page->menu_label = gtk_label_new (""); gtk_widget_set_halign (page->menu_label, GTK_ALIGN_START); gtk_widget_set_valign (page->menu_label, GTK_ALIGN_CENTER); } 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 (priv->menu), menu_item, g_list_position (priv->children, list)); g_signal_connect (menu_item, "activate", G_CALLBACK (gtk_notebook_menu_switch_page), page); if (gtk_widget_get_visible (page->child)) gtk_widget_show (menu_item); } static void gtk_notebook_menu_label_unparent (GtkWidget *widget, gpointer data) { gtk_widget_unparent (gtk_bin_get_child (GTK_BIN (widget))); _gtk_bin_set_child (GTK_BIN (widget), NULL); } static void gtk_notebook_menu_detacher (GtkWidget *widget, GtkMenu *menu) { GtkNotebook *notebook = GTK_NOTEBOOK (widget); GtkNotebookPrivate *priv = notebook->priv; g_return_if_fail (priv->menu == (GtkWidget*) menu); priv->menu = NULL; } /* 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: (allow-none): 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. * * Returns: 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: (allow-none): the #GtkWidget to be used as the label * for the page, or %NULL to use the default label, “page N” * @menu_label: (allow-none): 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. * * Returns: 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: (allow-none): 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. * * Returns: 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: (allow-none): the #GtkWidget to be used as the label * for the page, or %NULL to use the default label, “page N” * @menu_label: (allow-none): 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. * * Returns: 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: (allow-none): 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. * * Returns: 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); GtkNotebookPrivate *priv = notebook->priv; GList *list; list = g_list_find_custom (priv->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); 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: (allow-none): the #GtkWidget to be used as the label * for the page, or %NULL to use the default label, “page N” * @menu_label: (allow-none): 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. * * Returns: the index (starting from 0) of the inserted * page in the notebook */ gint gtk_notebook_insert_page_menu (GtkNotebook *notebook, GtkWidget *child, GtkWidget *tab_label, GtkWidget *menu_label, gint position) { GtkNotebookClass *class; 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); class = GTK_NOTEBOOK_GET_CLASS (notebook); return (class->insert_page) (notebook, child, tab_label, menu_label, 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) { GtkNotebookPrivate *priv; GList *list = NULL; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); priv = notebook->priv; if (page_num >= 0) list = g_list_nth (priv->children, page_num); else list = g_list_last (priv->children); if (list) gtk_container_remove (GTK_CONTAINER (notebook), ((GtkNotebookPage *) list->data)->child); } /* 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. * * Returns: 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) { GtkNotebookPrivate *priv; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1); priv = notebook->priv; if (!priv->cur_page) return -1; return g_list_index (priv->children, priv->cur_page); } /** * gtk_notebook_get_nth_page: * @notebook: a #GtkNotebook * @page_num: the index of a page in the notebook, or -1 * to get the last page * * Returns the child widget contained in page number @page_num. * * Returns: (transfer none): the child widget, or %NULL * if @page_num is out of bounds */ GtkWidget* gtk_notebook_get_nth_page (GtkNotebook *notebook, gint page_num) { GtkNotebookPrivate *priv; GtkNotebookPage *page; GList *list; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL); priv = notebook->priv; if (page_num >= 0) list = g_list_nth (priv->children, page_num); else list = g_list_last (priv->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. * * Returns: the number of pages in the notebook * * Since: 2.2 */ gint gtk_notebook_get_n_pages (GtkNotebook *notebook) { GtkNotebookPrivate *priv; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), 0); priv = notebook->priv; return g_list_length (priv->children); } /** * gtk_notebook_page_num: * @notebook: a #GtkNotebook * @child: a #GtkWidget * * Finds the index of the page which contains the given child * widget. * * Returns: 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) { GtkNotebookPrivate *priv; GList *children; gint num; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1); priv = notebook->priv; num = 0; children = priv->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. * * Note that due to historical reasons, GtkNotebook refuses * to switch to a page unless the child widget is visible. * Therefore, it is recommended to show child widgets before * adding them to a notebook. */ void gtk_notebook_set_current_page (GtkNotebook *notebook, gint page_num) { GtkNotebookPrivate *priv; GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); priv = notebook->priv; if (page_num < 0) page_num = g_list_length (priv->children) - 1; list = g_list_nth (priv->children, page_num); if (list) gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (list)); g_object_notify (G_OBJECT (notebook), "page"); } /** * 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) { GtkNotebookPrivate *priv; GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); priv = notebook->priv; list = g_list_find (priv->children, priv->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)); } /** * 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) { GtkNotebookPrivate *priv; GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); priv = notebook->priv; list = g_list_find (priv->children, priv->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)); } /* Public GtkNotebook/Tab Style Functions * * gtk_notebook_set_show_border * gtk_notebook_get_show_border * gtk_notebook_set_show_tabs * gtk_notebook_get_show_tabs * gtk_notebook_set_tab_pos * gtk_notebook_get_tab_pos * gtk_notebook_set_scrollable * gtk_notebook_get_scrollable * gtk_notebook_get_tab_hborder * gtk_notebook_get_tab_vborder */ /** * 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) { GtkNotebookPrivate *priv; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); priv = notebook->priv; if (priv->show_border != show_border) { priv->show_border = show_border; if (gtk_widget_get_visible (GTK_WIDGET (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(). * * Returns: %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->priv->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) { GtkNotebookPrivate *priv; GtkNotebookPage *page; GtkStyleContext *context; GList *children; gint i; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); priv = notebook->priv; show_tabs = show_tabs != FALSE; if (priv->show_tabs == show_tabs) return; priv->show_tabs = show_tabs; children = priv->children; context = gtk_widget_get_style_context (GTK_WIDGET (notebook)); if (!show_tabs) { gtk_widget_set_can_focus (GTK_WIDGET (notebook), FALSE); 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); } gtk_style_context_remove_class (context, GTK_STYLE_CLASS_NOTEBOOK); } else { gtk_widget_set_can_focus (GTK_WIDGET (notebook), TRUE); gtk_notebook_update_labels (notebook); gtk_style_context_add_class (context, GTK_STYLE_CLASS_NOTEBOOK); } for (i = 0; i < N_ACTION_WIDGETS; i++) { if (priv->action_widget[i]) gtk_widget_set_child_visible (priv->action_widget[i], show_tabs); } gtk_widget_reset_style (GTK_WIDGET (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(). * * Returns: %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->priv->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) { GtkNotebookPrivate *priv; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); priv = notebook->priv; if (priv->tab_pos != pos) { priv->tab_pos = pos; if (gtk_widget_get_visible (GTK_WIDGET (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. * * Returns: 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->priv->tab_pos; } /** * 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) { GtkNotebookPrivate *priv; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); priv = notebook->priv; scrollable = (scrollable != FALSE); if (scrollable != priv->scrollable) { priv->scrollable = scrollable; if (gtk_widget_get_visible (GTK_WIDGET (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(). * * Returns: %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->priv->scrollable; } /** * gtk_notebook_get_tab_hborder: * @notebook: a #GtkNotebook * * Returns the horizontal width of a tab border. * * Returns: horizontal width of a tab border * * Since: 2.22 * * Deprecated: 3.4: this function returns zero */ guint16 gtk_notebook_get_tab_hborder (GtkNotebook *notebook) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE); return 0; } /** * gtk_notebook_get_tab_vborder: * @notebook: a #GtkNotebook * * Returns the vertical width of a tab border. * * Returns: vertical width of a tab border * * Since: 2.22 * * Deprecated: 3.4: this function returns zero */ guint16 gtk_notebook_get_tab_vborder (GtkNotebook *notebook) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE); return 0; } /* 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 tab labels, a menu with all the pages * will be popped up. */ void gtk_notebook_popup_enable (GtkNotebook *notebook) { GtkNotebookPrivate *priv; GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); priv = notebook->priv; if (priv->menu) return; priv->menu = gtk_menu_new (); gtk_style_context_add_class (gtk_widget_get_style_context (priv->menu), GTK_STYLE_CLASS_CONTEXT_MENU); 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 (priv->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) { GtkNotebookPrivate *priv; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); priv = notebook->priv; if (!priv->menu) return; gtk_container_foreach (GTK_CONTAINER (priv->menu), (GtkCallback) gtk_notebook_menu_label_unparent, NULL); gtk_widget_destroy (priv->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_get_tab_reorderable * gtk_notebook_set_tab_reorderable * gtk_notebook_get_tab_detachable * gtk_notebook_set_tab_detachable */ /** * 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. * * Returns: (transfer none): 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: (allow-none): 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) { GtkNotebookPrivate *priv; GtkNotebookPage *page; GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (GTK_IS_WIDGET (child)); priv = notebook->priv; 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 (priv->show_tabs) { gchar string[32]; g_snprintf (string, sizeof(string), _("Page %u"), g_list_position (priv->children, 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 (priv->cur_page == page) gtk_style_context_add_class (gtk_widget_get_style_context (page->tab_label), "active-page"); if (priv->prelight_tab == page) gtk_style_context_add_class (gtk_widget_get_style_context (page->tab_label), "prelight-page"); if (priv->show_tabs && gtk_widget_get_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: 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. */ const 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 (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. * * Returns: (transfer none): 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: (allow-none): 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) { GtkNotebookPrivate *priv; GtkNotebookPage *page; GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (GTK_IS_WIDGET (child)); priv = notebook->priv; list = CHECK_FIND_CHILD (notebook, child); if (!list) return; page = list->data; if (page->menu_label) { if (priv->menu) gtk_container_remove (GTK_CONTAINER (priv->menu), gtk_widget_get_parent (page->menu_label)); if (!page->default_menu) g_object_unref (page->menu_label); } if (menu_label) { page->menu_label = menu_label; g_object_ref_sink (page->menu_label); page->default_menu = FALSE; } else page->default_menu = TRUE; if (priv->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_widget_set_halign (menu_label, GTK_ALIGN_START); gtk_widget_set_valign (menu_label, GTK_ALIGN_CENTER); } 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: 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. */ const 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 (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) { GtkNotebookPrivate *priv = notebook->priv; if (priv->menu) { GtkWidget *menu_item; menu_item = gtk_widget_get_parent (page->menu_label); gtk_container_remove (GTK_CONTAINER (menu_item), page->menu_label); gtk_container_remove (GTK_CONTAINER (priv->menu), menu_item); gtk_notebook_menu_item_create (notebook, g_list_find (priv->children, page)); } gtk_notebook_update_tab_states (notebook); gtk_notebook_update_labels (notebook); } static void gtk_notebook_set_tab_label_packing (GtkNotebook *notebook, GtkWidget *child, gboolean expand, gboolean fill) { GtkNotebookPrivate *priv; GtkNotebookPage *page; GList *list; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (GTK_IS_WIDGET (child)); priv = notebook->priv; list = CHECK_FIND_CHILD (notebook, child); if (!list) return; page = list->data; expand = expand != FALSE; fill = fill != FALSE; if (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"); gtk_widget_child_notify (child, "position"); if (priv->show_tabs) gtk_widget_queue_resize (GTK_WIDGET (notebook)); gtk_widget_thaw_child_notify (child); } static void gtk_notebook_query_tab_label_packing (GtkNotebook *notebook, GtkWidget *child, gboolean *expand, gboolean *fill) { 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; } /** * 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) { GtkNotebookPrivate *priv; GList *list, *new_list; GtkNotebookPage *page; gint old_pos; gint max_pos; gint i; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (GTK_IS_WIDGET (child)); priv = notebook->priv; list = CHECK_FIND_CHILD (notebook, child); if (!list) return; max_pos = g_list_length (priv->children) - 1; if (position < 0 || position > max_pos) position = max_pos; old_pos = g_list_position (priv->children, list); if (old_pos == position) return; page = list->data; priv->children = g_list_delete_link (priv->children, list); priv->children = g_list_insert (priv->children, page, position); new_list = g_list_nth (priv->children, position); /* Fix up GList references in GtkNotebook structure */ if (priv->first_tab == list) priv->first_tab = new_list; if (priv->focus_tab == list) priv->focus_tab = new_list; gtk_widget_freeze_child_notify (child); /* Move around the menu items if necessary */ gtk_notebook_child_reordered (notebook, page); for (list = priv->children, i = 0; list; list = list->next, i++) { if (MIN (old_pos, position) <= i && i <= MAX (old_pos, position)) gtk_widget_child_notify (((GtkNotebookPage *) list->data)->child, "position"); } if (priv->show_tabs) gtk_notebook_pages_allocate (notebook); gtk_widget_thaw_child_notify (child); g_signal_emit (notebook, notebook_signals[PAGE_REORDERED], 0, child, position); } /** * gtk_notebook_set_group_name: * @notebook: a #GtkNotebook * @group_name: (allow-none): the name of the notebook group, * or %NULL to unset it * * Sets a group name for @notebook. * * Notebooks with the same name will be able to exchange tabs * via drag and drop. A notebook with a %NULL group name will * not be able to exchange tabs with any other notebook. * * Since: 2.24 */ void gtk_notebook_set_group_name (GtkNotebook *notebook, const gchar *group_name) { GtkNotebookPrivate *priv; GQuark group; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); priv = notebook->priv; group = g_quark_from_string (group_name); if (priv->group != group) { priv->group = group; g_object_notify (G_OBJECT (notebook), "group-name"); } } /** * gtk_notebook_get_group_name: * @notebook: a #GtkNotebook * * Gets the current group name for @notebook. * * Returns: (transfer none): the group name, * or %NULL if none is set. * * Since: 2.24 */ const gchar * gtk_notebook_get_group_name (GtkNotebook *notebook) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL); return g_quark_to_string (notebook->priv->group); } /** * gtk_notebook_get_tab_reorderable: * @notebook: a #GtkNotebook * @child: a child #GtkWidget * * Gets whether the tab can be reordered via drag and drop or not. * * Returns: %TRUE if the tab is reorderable. * * Since: 2.10 */ gboolean gtk_notebook_get_tab_reorderable (GtkNotebook *notebook, GtkWidget *child) { GList *list; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE); g_return_val_if_fail (GTK_IS_WIDGET (child), FALSE); list = CHECK_FIND_CHILD (notebook, child); if (!list) return FALSE; return GTK_NOTEBOOK_PAGE (list)->reorderable; } /** * gtk_notebook_set_tab_reorderable: * @notebook: a #GtkNotebook * @child: a child #GtkWidget * @reorderable: whether the tab is reorderable or not * * Sets whether the notebook tab can be reordered * via drag and drop or not. * * Since: 2.10 */ void gtk_notebook_set_tab_reorderable (GtkNotebook *notebook, GtkWidget *child, gboolean reorderable) { 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; reorderable = reorderable != FALSE; if (GTK_NOTEBOOK_PAGE (list)->reorderable != reorderable) { GTK_NOTEBOOK_PAGE (list)->reorderable = reorderable; gtk_widget_child_notify (child, "reorderable"); } } /** * gtk_notebook_get_tab_detachable: * @notebook: a #GtkNotebook * @child: a child #GtkWidget * * Returns whether the tab contents can be detached from @notebook. * * Returns: %TRUE if the tab is detachable. * * Since: 2.10 */ gboolean gtk_notebook_get_tab_detachable (GtkNotebook *notebook, GtkWidget *child) { GList *list; g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE); g_return_val_if_fail (GTK_IS_WIDGET (child), FALSE); list = CHECK_FIND_CHILD (notebook, child); if (!list) return FALSE; return GTK_NOTEBOOK_PAGE (list)->detachable; } /** * gtk_notebook_set_tab_detachable: * @notebook: a #GtkNotebook * @child: a child #GtkWidget * @detachable: whether the tab is detachable or not * * Sets whether the tab can be detached from @notebook to another * notebook or widget. * * Note that 2 notebooks must share a common group identificator * (see gtk_notebook_set_group_name()) to allow automatic tabs * interchange between them. * * If you want a widget to interact with a notebook through DnD * (i.e.: accept dragged tabs from it) it must be set as a drop * destination and accept the target “GTK_NOTEBOOK_TAB”. The notebook * will fill the selection with a GtkWidget** pointing to the child * widget that corresponds to the dropped tab. * |[ * static void * on_drag_data_received (GtkWidget *widget, * GdkDragContext *context, * gint x, * gint y, * GtkSelectionData *data, * guint info, * guint time, * gpointer user_data) * { * GtkWidget *notebook; * GtkWidget **child; * GtkContainer *container; * * notebook = gtk_drag_get_source_widget (context); * child = (void*) gtk_selection_data_get_data (data); * * process_widget (*child); * container = GTK_CONTAINER (notebook); * gtk_container_remove (container, *child); * } * ]| * * If you want a notebook to accept drags from other widgets, * you will have to set your own DnD code to do it. * * Since: 2.10 */ void gtk_notebook_set_tab_detachable (GtkNotebook *notebook, GtkWidget *child, gboolean detachable) { 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; detachable = detachable != FALSE; if (GTK_NOTEBOOK_PAGE (list)->detachable != detachable) { GTK_NOTEBOOK_PAGE (list)->detachable = detachable; gtk_widget_child_notify (child, "detachable"); } } /** * gtk_notebook_get_action_widget: * @notebook: a #GtkNotebook * @pack_type: pack type of the action widget to receive * * Gets one of the action widgets. See gtk_notebook_set_action_widget(). * * Returns: (transfer none): The action widget with the given @pack_type * or %NULL when this action widget has not been set * * Since: 2.20 */ GtkWidget* gtk_notebook_get_action_widget (GtkNotebook *notebook, GtkPackType pack_type) { g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL); return notebook->priv->action_widget[pack_type]; } /** * gtk_notebook_set_action_widget: * @notebook: a #GtkNotebook * @widget: a #GtkWidget * @pack_type: pack type of the action widget * * Sets @widget as one of the action widgets. Depending on the pack type * the widget will be placed before or after the tabs. You can use * a #GtkBox if you need to pack more than one widget on the same side. * * Note that action widgets are “internal” children of the notebook and thus * not included in the list returned from gtk_container_foreach(). * * Since: 2.20 */ void gtk_notebook_set_action_widget (GtkNotebook *notebook, GtkWidget *widget, GtkPackType pack_type) { GtkNotebookPrivate *priv; g_return_if_fail (GTK_IS_NOTEBOOK (notebook)); g_return_if_fail (!widget || GTK_IS_WIDGET (widget)); g_return_if_fail (!widget || gtk_widget_get_parent (widget) == NULL); priv = notebook->priv; if (priv->action_widget[pack_type]) gtk_widget_unparent (priv->action_widget[pack_type]); priv->action_widget[pack_type] = widget; if (widget) { gtk_widget_set_child_visible (widget, priv->show_tabs); gtk_widget_set_parent (widget, GTK_WIDGET (notebook)); } gtk_widget_queue_resize (GTK_WIDGET (notebook)); }