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gtk2/gtk/gtknotebook.c
Matthias Clasen 81ffe54056 Stop scrolling when the widget is unmapped. (#168791, Ryan Lortie) 
2005-03-22  Matthias Clasen  <mclasen@redhat.com>

	* gtk/gtkpathbar.c (gtk_path_bar_unmap):
	* gtk/gtkspinbutton.c (gtk_spin_button_unmap):
	* gtk/gtknotebook.c (gtk_notebook_unmap):
	* gtk/gtkrange.c (gtk_range_unmap): Stop scrolling when
	the widget is unmapped.  (#168791, Ryan Lortie)
2005-03-22 17:36:41 +00:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <config.h>
#include "gtknotebook.h"
#include "gtkmain.h"
#include "gtkmenu.h"
#include "gtkmenuitem.h"
#include "gtklabel.h"
#include <gdk/gdkkeysyms.h>
#include <stdio.h>
#include "gtkintl.h"
#include "gtkmarshalers.h"
#include "gtkbindings.h"
#include "gtkprivate.h"
#include "gtkalias.h"
#define TAB_OVERLAP 2
#define TAB_CURVATURE 1
#define ARROW_SIZE 12
#define ARROW_SPACING 0
#define NOTEBOOK_INIT_SCROLL_DELAY (200)
#define NOTEBOOK_SCROLL_DELAY (100)
enum {
SWITCH_PAGE,
FOCUS_TAB,
SELECT_PAGE,
CHANGE_CURRENT_PAGE,
MOVE_FOCUS_OUT,
LAST_SIGNAL
};
enum {
STEP_PREV,
STEP_NEXT
};
typedef enum
{
ARROW_NONE,
ARROW_LEFT_BEFORE,
ARROW_RIGHT_BEFORE,
ARROW_LEFT_AFTER,
ARROW_RIGHT_AFTER
} GtkNotebookArrow;
#define ARROW_IS_LEFT(arrow) ((arrow) == ARROW_LEFT_BEFORE || (arrow) == ARROW_LEFT_AFTER)
#define ARROW_IS_BEFORE(arrow) ((arrow) == ARROW_LEFT_BEFORE || (arrow) == ARROW_RIGHT_BEFORE)
enum {
PROP_0,
PROP_TAB_POS,
PROP_SHOW_TABS,
PROP_SHOW_BORDER,
PROP_SCROLLABLE,
PROP_TAB_BORDER,
PROP_TAB_HBORDER,
PROP_TAB_VBORDER,
PROP_PAGE,
PROP_ENABLE_POPUP,
PROP_HOMOGENEOUS
};
enum {
CHILD_PROP_0,
CHILD_PROP_TAB_LABEL,
CHILD_PROP_MENU_LABEL,
CHILD_PROP_POSITION,
CHILD_PROP_TAB_EXPAND,
CHILD_PROP_TAB_FILL,
CHILD_PROP_TAB_PACK
};
#define GTK_NOTEBOOK_PAGE(_glist_) ((GtkNotebookPage *)((GList *)(_glist_))->data)
struct _GtkNotebookPage
{
GtkWidget *child;
GtkWidget *tab_label;
GtkWidget *menu_label;
GtkWidget *last_focus_child; /* Last descendant of the page that had focus */
guint default_menu : 1; /* If true, we create the menu label ourself */
guint default_tab : 1; /* If true, we create the tab label ourself */
guint expand : 1;
guint fill : 1;
guint pack : 1;
GtkRequisition requisition;
GtkAllocation allocation;
guint mnemonic_activate_signal;
};
#ifdef G_DISABLE_CHECKS
#define CHECK_FIND_CHILD(notebook, child) \
gtk_notebook_find_child (notebook, child, G_STRLOC)
#else
#define CHECK_FIND_CHILD(notebook, child) \
gtk_notebook_find_child (notebook, child, NULL)
#endif
/*** GtkNotebook Methods ***/
static void gtk_notebook_class_init (GtkNotebookClass *klass);
static void gtk_notebook_init (GtkNotebook *notebook);
static gboolean gtk_notebook_select_page (GtkNotebook *notebook,
gboolean move_focus);
static gboolean gtk_notebook_focus_tab (GtkNotebook *notebook,
GtkNotebookTab type);
static void gtk_notebook_change_current_page (GtkNotebook *notebook,
gint offset);
static void gtk_notebook_move_focus_out (GtkNotebook *notebook,
GtkDirectionType direction_type);
/*** GtkObject Methods ***/
static void gtk_notebook_destroy (GtkObject *object);
static void gtk_notebook_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_notebook_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
/*** GtkWidget Methods ***/
static void gtk_notebook_map (GtkWidget *widget);
static void gtk_notebook_unmap (GtkWidget *widget);
static void gtk_notebook_realize (GtkWidget *widget);
static void gtk_notebook_unrealize (GtkWidget *widget);
static void gtk_notebook_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_notebook_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gint gtk_notebook_expose (GtkWidget *widget,
GdkEventExpose *event);
static gboolean gtk_notebook_scroll (GtkWidget *widget,
GdkEventScroll *event);
static gint gtk_notebook_button_press (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_notebook_button_release (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_notebook_enter_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gint gtk_notebook_leave_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gint gtk_notebook_motion_notify (GtkWidget *widget,
GdkEventMotion *event);
static gint gtk_notebook_focus_in (GtkWidget *widget,
GdkEventFocus *event);
static gint gtk_notebook_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static void gtk_notebook_grab_notify (GtkWidget *widget,
gboolean was_grabbed);
static void gtk_notebook_state_changed (GtkWidget *widget,
GtkStateType previous_state);
static void gtk_notebook_draw_focus (GtkWidget *widget);
static gint gtk_notebook_focus (GtkWidget *widget,
GtkDirectionType direction);
static void gtk_notebook_style_set (GtkWidget *widget,
GtkStyle *previous);
/*** GtkContainer Methods ***/
static void gtk_notebook_set_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_notebook_get_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gtk_notebook_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_notebook_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_notebook_set_focus_child (GtkContainer *container,
GtkWidget *child);
static GType gtk_notebook_child_type (GtkContainer *container);
static void gtk_notebook_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
/*** GtkNotebook Private Functions ***/
static void gtk_notebook_redraw_tabs (GtkNotebook *notebook);
static void gtk_notebook_redraw_arrows (GtkNotebook *notebook);
static void gtk_notebook_real_remove (GtkNotebook *notebook,
GList *list,
gboolean destroying);
static void gtk_notebook_update_labels (GtkNotebook *notebook);
static gint gtk_notebook_timer (GtkNotebook *notebook);
static gint gtk_notebook_page_compare (gconstpointer a,
gconstpointer b);
static GList* gtk_notebook_find_child (GtkNotebook *notebook,
GtkWidget *child,
const gchar *function);
static gint gtk_notebook_real_page_position (GtkNotebook *notebook,
GList *list);
static GList * gtk_notebook_search_page (GtkNotebook *notebook,
GList *list,
gint direction,
gboolean find_visible);
/*** GtkNotebook Drawing Functions ***/
static void gtk_notebook_paint (GtkWidget *widget,
GdkRectangle *area);
static void gtk_notebook_draw_tab (GtkNotebook *notebook,
GtkNotebookPage *page,
GdkRectangle *area);
static void gtk_notebook_draw_arrow (GtkNotebook *notebook,
GtkNotebookArrow arrow);
/*** GtkNotebook Size Allocate Functions ***/
static void gtk_notebook_pages_allocate (GtkNotebook *notebook);
static void gtk_notebook_page_allocate (GtkNotebook *notebook,
GtkNotebookPage *page,
GtkAllocation *allocation);
static void gtk_notebook_calc_tabs (GtkNotebook *notebook,
GList *start,
GList **end,
gint *tab_space,
guint direction);
/*** GtkNotebook Page Switch Methods ***/
static void gtk_notebook_real_switch_page (GtkNotebook *notebook,
GtkNotebookPage *page,
guint page_num);
/*** GtkNotebook Page Switch Functions ***/
static void gtk_notebook_switch_page (GtkNotebook *notebook,
GtkNotebookPage *page,
gint page_num);
static gint gtk_notebook_page_select (GtkNotebook *notebook,
gboolean move_focus);
static void gtk_notebook_switch_focus_tab (GtkNotebook *notebook,
GList *new_child);
static void gtk_notebook_menu_switch_page (GtkWidget *widget,
GtkNotebookPage *page);
/*** GtkNotebook Menu Functions ***/
static void gtk_notebook_menu_item_create (GtkNotebook *notebook,
GList *list);
static void gtk_notebook_menu_label_unparent (GtkWidget *widget,
gpointer data);
static void gtk_notebook_menu_detacher (GtkWidget *widget,
GtkMenu *menu);
/*** GtkNotebook Private Setters ***/
static void gtk_notebook_set_homogeneous_tabs_internal (GtkNotebook *notebook,
gboolean homogeneous);
static void gtk_notebook_set_tab_border_internal (GtkNotebook *notebook,
guint border_width);
static void gtk_notebook_set_tab_hborder_internal (GtkNotebook *notebook,
guint tab_hborder);
static void gtk_notebook_set_tab_vborder_internal (GtkNotebook *notebook,
guint tab_vborder);
static gboolean focus_tabs_in (GtkNotebook *notebook);
static gboolean focus_child_in (GtkNotebook *notebook,
GtkDirectionType direction);
static void stop_scrolling (GtkNotebook *notebook);
static GtkContainerClass *parent_class = NULL;
static guint notebook_signals[LAST_SIGNAL] = { 0 };
GType
gtk_notebook_get_type (void)
{
static GType notebook_type = 0;
if (!notebook_type)
{
static const GTypeInfo notebook_info =
{
sizeof (GtkNotebookClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_notebook_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkNotebook),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_notebook_init,
};
notebook_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkNotebook",
&notebook_info, 0);
}
return notebook_type;
}
static void
add_tab_bindings (GtkBindingSet *binding_set,
GdkModifierType modifiers,
GtkDirectionType direction)
{
gtk_binding_entry_add_signal (binding_set, GDK_Tab, modifiers,
"move_focus_out", 1,
GTK_TYPE_DIRECTION_TYPE, direction);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, modifiers,
"move_focus_out", 1,
GTK_TYPE_DIRECTION_TYPE, direction);
}
static void
add_arrow_bindings (GtkBindingSet *binding_set,
guint keysym,
GtkDirectionType direction)
{
guint keypad_keysym = keysym - GDK_Left + GDK_KP_Left;
gtk_binding_entry_add_signal (binding_set, keysym, GDK_CONTROL_MASK,
"move_focus_out", 1,
GTK_TYPE_DIRECTION_TYPE, direction);
gtk_binding_entry_add_signal (binding_set, keypad_keysym, GDK_CONTROL_MASK,
"move_focus_out", 1,
GTK_TYPE_DIRECTION_TYPE, direction);
}
static void
gtk_notebook_class_init (GtkNotebookClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
GtkObjectClass *object_class = GTK_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
GtkBindingSet *binding_set;
parent_class = g_type_class_peek_parent (class);
gobject_class->set_property = gtk_notebook_set_property;
gobject_class->get_property = gtk_notebook_get_property;
object_class->destroy = gtk_notebook_destroy;
widget_class->map = gtk_notebook_map;
widget_class->unmap = gtk_notebook_unmap;
widget_class->realize = gtk_notebook_realize;
widget_class->unrealize = gtk_notebook_unrealize;
widget_class->size_request = gtk_notebook_size_request;
widget_class->size_allocate = gtk_notebook_size_allocate;
widget_class->expose_event = gtk_notebook_expose;
widget_class->scroll_event = gtk_notebook_scroll;
widget_class->button_press_event = gtk_notebook_button_press;
widget_class->button_release_event = gtk_notebook_button_release;
widget_class->enter_notify_event = gtk_notebook_enter_notify;
widget_class->leave_notify_event = gtk_notebook_leave_notify;
widget_class->motion_notify_event = gtk_notebook_motion_notify;
widget_class->grab_notify = gtk_notebook_grab_notify;
widget_class->state_changed = gtk_notebook_state_changed;
widget_class->focus_in_event = gtk_notebook_focus_in;
widget_class->focus_out_event = gtk_notebook_focus_out;
widget_class->focus = gtk_notebook_focus;
widget_class->style_set = gtk_notebook_style_set;
container_class->add = gtk_notebook_add;
container_class->remove = gtk_notebook_remove;
container_class->forall = gtk_notebook_forall;
container_class->set_focus_child = gtk_notebook_set_focus_child;
container_class->get_child_property = gtk_notebook_get_child_property;
container_class->set_child_property = gtk_notebook_set_child_property;
container_class->child_type = gtk_notebook_child_type;
class->switch_page = gtk_notebook_real_switch_page;
class->focus_tab = gtk_notebook_focus_tab;
class->select_page = gtk_notebook_select_page;
class->change_current_page = gtk_notebook_change_current_page;
class->move_focus_out = gtk_notebook_move_focus_out;
g_object_class_install_property (gobject_class,
PROP_PAGE,
g_param_spec_int ("page",
P_("Page"),
P_("The index of the current page"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_TAB_POS,
g_param_spec_enum ("tab-pos",
P_("Tab Position"),
P_("Which side of the notebook holds the tabs"),
GTK_TYPE_POSITION_TYPE,
GTK_POS_TOP,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_TAB_BORDER,
g_param_spec_uint ("tab-border",
P_("Tab Border"),
P_("Width of the border around the tab labels"),
0,
G_MAXUINT,
2,
GTK_PARAM_WRITABLE));
g_object_class_install_property (gobject_class,
PROP_TAB_HBORDER,
g_param_spec_uint ("tab-hborder",
P_("Horizontal Tab Border"),
P_("Width of the horizontal border of tab labels"),
0,
G_MAXUINT,
2,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_TAB_VBORDER,
g_param_spec_uint ("tab-vborder",
P_("Vertical Tab Border"),
P_("Width of the vertical border of tab labels"),
0,
G_MAXUINT,
2,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SHOW_TABS,
g_param_spec_boolean ("show-tabs",
P_("Show Tabs"),
P_("Whether tabs should be shown or not"),
TRUE,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SHOW_BORDER,
g_param_spec_boolean ("show-border",
P_("Show Border"),
P_("Whether the border should be shown or not"),
TRUE,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SCROLLABLE,
g_param_spec_boolean ("scrollable",
P_("Scrollable"),
P_("If TRUE, scroll arrows are added if there are too many tabs to fit"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_ENABLE_POPUP,
g_param_spec_boolean ("enable-popup",
P_("Enable Popup"),
P_("If TRUE, pressing the right mouse button on the notebook pops up a menu that you can use to go to a page"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_HOMOGENEOUS,
g_param_spec_boolean ("homogeneous",
P_("Homogeneous"),
P_("Whether tabs should have homogeneous sizes"),
FALSE,
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 or not"),
TRUE,
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 or not"),
TRUE,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class,
CHILD_PROP_TAB_PACK,
g_param_spec_enum ("tab-pack",
P_("Tab pack type"),
P_("A GtkPackType indicating whether the child is packed with reference to the start or end of the parent"),
GTK_TYPE_PACK_TYPE, GTK_PACK_START,
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));
notebook_signals[SWITCH_PAGE] =
g_signal_new ("switch_page",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkNotebookClass, switch_page),
NULL, NULL,
_gtk_marshal_VOID__POINTER_UINT,
G_TYPE_NONE, 2,
G_TYPE_POINTER,
G_TYPE_UINT);
notebook_signals[FOCUS_TAB] =
g_signal_new ("focus_tab",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkNotebookClass, focus_tab),
NULL, NULL,
_gtk_marshal_BOOLEAN__ENUM,
G_TYPE_BOOLEAN, 1,
GTK_TYPE_NOTEBOOK_TAB);
notebook_signals[SELECT_PAGE] =
g_signal_new ("select_page",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkNotebookClass, select_page),
NULL, NULL,
_gtk_marshal_BOOLEAN__BOOLEAN,
G_TYPE_BOOLEAN, 1,
G_TYPE_BOOLEAN);
notebook_signals[CHANGE_CURRENT_PAGE] =
g_signal_new ("change_current_page",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkNotebookClass, change_current_page),
NULL, NULL,
_gtk_marshal_VOID__INT,
G_TYPE_NONE, 1,
G_TYPE_INT);
notebook_signals[MOVE_FOCUS_OUT] =
g_signal_new ("move_focus_out",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkNotebookClass, move_focus_out),
NULL, NULL,
_gtk_marshal_VOID__ENUM,
G_TYPE_NONE, 1,
GTK_TYPE_DIRECTION_TYPE);
binding_set = gtk_binding_set_by_class (class);
gtk_binding_entry_add_signal (binding_set,
GDK_space, 0,
"select_page", 1,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set,
GDK_KP_Space, 0,
"select_page", 1,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set,
GDK_Home, 0,
"focus_tab", 1,
GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_FIRST);
gtk_binding_entry_add_signal (binding_set,
GDK_KP_Home, 0,
"focus_tab", 1,
GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_FIRST);
gtk_binding_entry_add_signal (binding_set,
GDK_End, 0,
"focus_tab", 1,
GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_LAST);
gtk_binding_entry_add_signal (binding_set,
GDK_KP_End, 0,
"focus_tab", 1,
GTK_TYPE_NOTEBOOK_TAB, GTK_NOTEBOOK_TAB_LAST);
gtk_binding_entry_add_signal (binding_set,
GDK_Page_Up, GDK_CONTROL_MASK,
"change_current_page", 1,
G_TYPE_INT, -1);
gtk_binding_entry_add_signal (binding_set,
GDK_Page_Down, GDK_CONTROL_MASK,
"change_current_page", 1,
G_TYPE_INT, 1);
gtk_binding_entry_add_signal (binding_set,
GDK_Page_Up, GDK_CONTROL_MASK | GDK_MOD1_MASK,
"change_current_page", 1,
G_TYPE_INT, -1);
gtk_binding_entry_add_signal (binding_set,
GDK_Page_Down, GDK_CONTROL_MASK | GDK_MOD1_MASK,
"change_current_page", 1,
G_TYPE_INT, 1);
add_arrow_bindings (binding_set, GDK_Up, GTK_DIR_UP);
add_arrow_bindings (binding_set, GDK_Down, GTK_DIR_DOWN);
add_arrow_bindings (binding_set, GDK_Left, GTK_DIR_LEFT);
add_arrow_bindings (binding_set, GDK_Right, GTK_DIR_RIGHT);
add_tab_bindings (binding_set, GDK_CONTROL_MASK, GTK_DIR_TAB_FORWARD);
add_tab_bindings (binding_set, GDK_CONTROL_MASK | GDK_SHIFT_MASK, GTK_DIR_TAB_BACKWARD);
}
static void
gtk_notebook_init (GtkNotebook *notebook)
{
GTK_WIDGET_SET_FLAGS (notebook, GTK_CAN_FOCUS);
GTK_WIDGET_SET_FLAGS (notebook, GTK_NO_WINDOW);
notebook->cur_page = NULL;
notebook->children = NULL;
notebook->first_tab = NULL;
notebook->focus_tab = NULL;
notebook->event_window = NULL;
notebook->menu = NULL;
notebook->tab_hborder = 2;
notebook->tab_vborder = 2;
notebook->show_tabs = TRUE;
notebook->show_border = TRUE;
notebook->tab_pos = GTK_POS_TOP;
notebook->scrollable = FALSE;
notebook->in_child = 0;
notebook->click_child = 0;
notebook->button = 0;
notebook->need_timer = 0;
notebook->child_has_focus = FALSE;
notebook->have_visible_child = FALSE;
notebook->focus_out = FALSE;
notebook->has_before_previous = 1;
notebook->has_before_next = 0;
notebook->has_after_previous = 0;
notebook->has_after_next = 1;
}
static gboolean
gtk_notebook_select_page (GtkNotebook *notebook,
gboolean move_focus)
{
if (gtk_widget_is_focus (GTK_WIDGET (notebook)))
{
gtk_notebook_page_select (notebook, move_focus);
return TRUE;
}
else
return FALSE;
}
static gboolean
gtk_notebook_focus_tab (GtkNotebook *notebook,
GtkNotebookTab type)
{
GList *list;
if (gtk_widget_is_focus (GTK_WIDGET (notebook)))
{
switch (type)
{
case GTK_NOTEBOOK_TAB_FIRST:
list = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE);
if (list)
gtk_notebook_switch_focus_tab (notebook, list);
break;
case GTK_NOTEBOOK_TAB_LAST:
list = gtk_notebook_search_page (notebook, NULL, STEP_PREV, TRUE);
if (list)
gtk_notebook_switch_focus_tab (notebook, list);
break;
}
return TRUE;
}
else
return FALSE;
}
static void
gtk_notebook_change_current_page (GtkNotebook *notebook,
gint offset)
{
GList *current = NULL;
if (notebook->cur_page)
current = g_list_find (notebook->children, notebook->cur_page);
while (offset != 0)
{
current = gtk_notebook_search_page (notebook, current, offset < 0 ? STEP_PREV : STEP_NEXT, TRUE);
offset += offset < 0 ? 1 : -1;
}
if (current)
gtk_notebook_switch_page (notebook, current->data, -1);
else
gdk_display_beep (gtk_widget_get_display (GTK_WIDGET (notebook)));
}
static GtkDirectionType
get_effective_direction (GtkNotebook *notebook,
GtkDirectionType direction)
{
/* Remap the directions into the effective direction it would be for a
* GTK_POS_TOP notebook
*/
#define D(rest) GTK_DIR_##rest
static const GtkDirectionType translate_direction[2][4][6] = {
/* LEFT */ {{ D(TAB_FORWARD), D(TAB_BACKWARD), D(LEFT), D(RIGHT), D(UP), D(DOWN) },
/* RIGHT */ { D(TAB_BACKWARD), D(TAB_FORWARD), D(LEFT), D(RIGHT), D(DOWN), D(UP) },
/* TOP */ { D(TAB_FORWARD), D(TAB_BACKWARD), D(UP), D(DOWN), D(LEFT), D(RIGHT) },
/* BOTTOM */ { D(TAB_BACKWARD), D(TAB_FORWARD), D(DOWN), D(UP), D(LEFT), D(RIGHT) }},
/* LEFT */ {{ D(TAB_BACKWARD), D(TAB_FORWARD), D(LEFT), D(RIGHT), D(DOWN), D(UP) },
/* RIGHT */ { D(TAB_FORWARD), D(TAB_BACKWARD), D(LEFT), D(RIGHT), D(UP), D(DOWN) },
/* TOP */ { D(TAB_FORWARD), D(TAB_BACKWARD), D(UP), D(DOWN), D(RIGHT), D(LEFT) },
/* BOTTOM */ { D(TAB_BACKWARD), D(TAB_FORWARD), D(DOWN), D(UP), D(RIGHT), D(LEFT) }},
};
#undef D
int text_dir = gtk_widget_get_direction (GTK_WIDGET (notebook)) == GTK_TEXT_DIR_RTL ? 1 : 0;
return translate_direction[text_dir][notebook->tab_pos][direction];
}
static gint
get_effective_tab_pos (GtkNotebook *notebook)
{
if (gtk_widget_get_direction (GTK_WIDGET (notebook)) == GTK_TEXT_DIR_RTL)
{
switch (notebook->tab_pos)
{
case GTK_POS_LEFT:
return GTK_POS_RIGHT;
case GTK_POS_RIGHT:
return GTK_POS_LEFT;
default: ;
}
}
return notebook->tab_pos;
}
static void
gtk_notebook_move_focus_out (GtkNotebook *notebook,
GtkDirectionType direction_type)
{
GtkDirectionType effective_direction = get_effective_direction (notebook, direction_type);
GtkWidget *toplevel;
if (GTK_CONTAINER (notebook)->focus_child && effective_direction == GTK_DIR_UP)
if (focus_tabs_in (notebook))
return;
if (gtk_widget_is_focus (GTK_WIDGET (notebook)) && effective_direction == GTK_DIR_DOWN)
if (focus_child_in (notebook, GTK_DIR_TAB_FORWARD))
return;
/* At this point, we know we should be focusing out of the notebook entirely. We
* do this by setting a flag, then propagating the focus motion to the notebook.
*/
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (notebook));
if (!GTK_WIDGET_TOPLEVEL (toplevel))
return;
g_object_ref (notebook);
notebook->focus_out = TRUE;
g_signal_emit_by_name (toplevel, "move_focus", direction_type);
notebook->focus_out = FALSE;
g_object_unref (notebook);
}
/**
* gtk_notebook_new:
*
* Creates a new #GtkNotebook widget with no pages.
* Return value: the newly created #GtkNotebook
**/
GtkWidget*
gtk_notebook_new (void)
{
return g_object_new (GTK_TYPE_NOTEBOOK, NULL);
}
/* Private GtkObject Methods :
*
* gtk_notebook_destroy
* gtk_notebook_set_arg
* gtk_notebook_get_arg
*/
static void
gtk_notebook_destroy (GtkObject *object)
{
GList *children;
GtkNotebook *notebook = GTK_NOTEBOOK (object);
if (notebook->menu)
gtk_notebook_popup_disable (notebook);
children = notebook->children;
while (children)
{
GList *child = children;
children = child->next;
gtk_notebook_real_remove (notebook, child, TRUE);
}
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gtk_notebook_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkNotebook *notebook;
notebook = GTK_NOTEBOOK (object);
switch (prop_id)
{
case PROP_SHOW_TABS:
gtk_notebook_set_show_tabs (notebook, g_value_get_boolean (value));
break;
case PROP_SHOW_BORDER:
gtk_notebook_set_show_border (notebook, g_value_get_boolean (value));
break;
case PROP_SCROLLABLE:
gtk_notebook_set_scrollable (notebook, g_value_get_boolean (value));
break;
case PROP_ENABLE_POPUP:
if (g_value_get_boolean (value))
gtk_notebook_popup_enable (notebook);
else
gtk_notebook_popup_disable (notebook);
break;
case PROP_HOMOGENEOUS:
gtk_notebook_set_homogeneous_tabs_internal (notebook, g_value_get_boolean (value));
break;
case PROP_PAGE:
gtk_notebook_set_current_page (notebook, g_value_get_int (value));
break;
case PROP_TAB_POS:
gtk_notebook_set_tab_pos (notebook, g_value_get_enum (value));
break;
case PROP_TAB_BORDER:
gtk_notebook_set_tab_border_internal (notebook, g_value_get_uint (value));
break;
case PROP_TAB_HBORDER:
gtk_notebook_set_tab_hborder_internal (notebook, g_value_get_uint (value));
break;
case PROP_TAB_VBORDER:
gtk_notebook_set_tab_vborder_internal (notebook, g_value_get_uint (value));
break;
default:
break;
}
}
static void
gtk_notebook_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkNotebook *notebook;
notebook = GTK_NOTEBOOK (object);
switch (prop_id)
{
case PROP_SHOW_TABS:
g_value_set_boolean (value, notebook->show_tabs);
break;
case PROP_SHOW_BORDER:
g_value_set_boolean (value, notebook->show_border);
break;
case PROP_SCROLLABLE:
g_value_set_boolean (value, notebook->scrollable);
break;
case PROP_ENABLE_POPUP:
g_value_set_boolean (value, notebook->menu != NULL);
break;
case PROP_HOMOGENEOUS:
g_value_set_boolean (value, notebook->homogeneous);
break;
case PROP_PAGE:
g_value_set_int (value, gtk_notebook_get_current_page (notebook));
break;
case PROP_TAB_POS:
g_value_set_enum (value, notebook->tab_pos);
break;
case PROP_TAB_HBORDER:
g_value_set_uint (value, notebook->tab_hborder);
break;
case PROP_TAB_VBORDER:
g_value_set_uint (value, notebook->tab_vborder);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* Private GtkWidget Methods :
*
* gtk_notebook_map
* gtk_notebook_unmap
* gtk_notebook_realize
* gtk_notebook_size_request
* gtk_notebook_size_allocate
* gtk_notebook_expose
* gtk_notebook_scroll
* gtk_notebook_button_press
* gtk_notebook_button_release
* gtk_notebook_enter_notify
* gtk_notebook_leave_notify
* gtk_notebook_motion_notify
* gtk_notebook_focus_in
* gtk_notebook_focus_out
* gtk_notebook_draw_focus
* gtk_notebook_style_set
*/
static gboolean
gtk_notebook_get_event_window_position (GtkNotebook *notebook,
GdkRectangle *rectangle)
{
GtkWidget *widget = GTK_WIDGET (notebook);
gint border_width = GTK_CONTAINER (notebook)->border_width;
GtkNotebookPage *visible_page = NULL;
GList *tmp_list;
gint tab_pos = get_effective_tab_pos (notebook);
for (tmp_list = notebook->children; tmp_list; tmp_list = tmp_list->next)
{
GtkNotebookPage *page = tmp_list->data;
if (GTK_WIDGET_VISIBLE (page->child))
{
visible_page = page;
break;
}
}
if (notebook->show_tabs && visible_page)
{
if (rectangle)
{
rectangle->x = widget->allocation.x + border_width;
rectangle->y = widget->allocation.y + border_width;
switch (tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
rectangle->width = widget->allocation.width - 2 * border_width;
rectangle->height = visible_page->requisition.height;
if (tab_pos == GTK_POS_BOTTOM)
rectangle->y += widget->allocation.height - 2 * border_width - rectangle->height;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
rectangle->width = visible_page->requisition.width;
rectangle->height = widget->allocation.height - 2 * border_width;
if (tab_pos == GTK_POS_RIGHT)
rectangle->x += widget->allocation.width - 2 * border_width - rectangle->width;
break;
}
}
return TRUE;
}
else
{
if (rectangle)
{
rectangle->x = rectangle->y = 0;
rectangle->width = rectangle->height = 10;
}
}
return FALSE;
}
static void
gtk_notebook_map (GtkWidget *widget)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
notebook = GTK_NOTEBOOK (widget);
if (notebook->cur_page &&
GTK_WIDGET_VISIBLE (notebook->cur_page->child) &&
!GTK_WIDGET_MAPPED (notebook->cur_page->child))
gtk_widget_map (notebook->cur_page->child);
if (notebook->scrollable)
gtk_notebook_pages_allocate (notebook);
else
{
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
if (page->tab_label &&
GTK_WIDGET_VISIBLE (page->tab_label) &&
!GTK_WIDGET_MAPPED (page->tab_label))
gtk_widget_map (page->tab_label);
}
}
if (gtk_notebook_get_event_window_position (notebook, NULL))
gdk_window_show_unraised (notebook->event_window);
}
static void
gtk_notebook_unmap (GtkWidget *widget)
{
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
stop_scrolling (GTK_NOTEBOOK (widget));
GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
gdk_window_hide (GTK_NOTEBOOK (widget)->event_window);
GTK_WIDGET_CLASS (parent_class)->unmap (widget);
}
static void
gtk_notebook_realize (GtkWidget *widget)
{
GtkNotebook *notebook;
GdkWindowAttr attributes;
gint attributes_mask;
GdkRectangle event_window_pos;
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
notebook = GTK_NOTEBOOK (widget);
GTK_WIDGET_SET_FLAGS (notebook, GTK_REALIZED);
gtk_notebook_get_event_window_position (notebook, &event_window_pos);
widget->window = gtk_widget_get_parent_window (widget);
g_object_ref (widget->window);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = event_window_pos.x;
attributes.y = event_window_pos.y;
attributes.width = event_window_pos.width;
attributes.height = event_window_pos.height;
attributes.wclass = GDK_INPUT_ONLY;
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK |
GDK_SCROLL_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y;
notebook->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (notebook->event_window, notebook);
widget->style = gtk_style_attach (widget->style, widget->window);
}
static void
gtk_notebook_unrealize (GtkWidget *widget)
{
GtkNotebook *notebook;
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
notebook = GTK_NOTEBOOK (widget);
gdk_window_set_user_data (notebook->event_window, NULL);
gdk_window_destroy (notebook->event_window);
notebook->event_window = NULL;
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_notebook_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkNotebook *notebook = GTK_NOTEBOOK (widget);
GtkNotebookPage *page;
GList *children;
GtkRequisition child_requisition;
gboolean switch_page = FALSE;
gint vis_pages;
gint focus_width;
gtk_widget_style_get (widget, "focus-line-width", &focus_width, NULL);
widget->requisition.width = 0;
widget->requisition.height = 0;
for (children = notebook->children, vis_pages = 0; children;
children = children->next)
{
page = children->data;
if (GTK_WIDGET_VISIBLE (page->child))
{
vis_pages++;
gtk_widget_size_request (page->child, &child_requisition);
widget->requisition.width = MAX (widget->requisition.width,
child_requisition.width);
widget->requisition.height = MAX (widget->requisition.height,
child_requisition.height);
if (notebook->menu && page->menu_label->parent &&
!GTK_WIDGET_VISIBLE (page->menu_label->parent))
gtk_widget_show (page->menu_label->parent);
}
else
{
if (page == notebook->cur_page)
switch_page = TRUE;
if (notebook->menu && page->menu_label->parent &&
GTK_WIDGET_VISIBLE (page->menu_label->parent))
gtk_widget_hide (page->menu_label->parent);
}
}
if (notebook->show_border || notebook->show_tabs)
{
widget->requisition.width += widget->style->xthickness * 2;
widget->requisition.height += widget->style->ythickness * 2;
if (notebook->show_tabs)
{
gint tab_width = 0;
gint tab_height = 0;
gint tab_max = 0;
gint padding;
for (children = notebook->children; children;
children = children->next)
{
page = children->data;
if (GTK_WIDGET_VISIBLE (page->child))
{
if (!GTK_WIDGET_VISIBLE (page->tab_label))
gtk_widget_show (page->tab_label);
gtk_widget_size_request (page->tab_label,
&child_requisition);
page->requisition.width =
child_requisition.width +
2 * widget->style->xthickness;
page->requisition.height =
child_requisition.height +
2 * widget->style->ythickness;
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
page->requisition.height += 2 * (notebook->tab_vborder +
focus_width);
tab_height = MAX (tab_height, page->requisition.height);
tab_max = MAX (tab_max, page->requisition.width);
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
page->requisition.width += 2 * (notebook->tab_hborder +
focus_width);
tab_width = MAX (tab_width, page->requisition.width);
tab_max = MAX (tab_max, page->requisition.height);
break;
}
}
else if (GTK_WIDGET_VISIBLE (page->tab_label))
gtk_widget_hide (page->tab_label);
}
children = notebook->children;
if (vis_pages)
{
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
if (tab_height == 0)
break;
if (notebook->scrollable && vis_pages > 1 &&
widget->requisition.width < tab_width)
tab_height = MAX (tab_height, ARROW_SIZE);
padding = 2 * (TAB_CURVATURE + focus_width +
notebook->tab_hborder) - TAB_OVERLAP;
tab_max += padding;
while (children)
{
page = children->data;
children = children->next;
if (!GTK_WIDGET_VISIBLE (page->child))
continue;
if (notebook->homogeneous)
page->requisition.width = tab_max;
else
page->requisition.width += padding;
tab_width += page->requisition.width;
page->requisition.height = tab_height;
}
if (notebook->scrollable && vis_pages > 1 &&
widget->requisition.width < tab_width)
tab_width = tab_max + 2 * (ARROW_SIZE + ARROW_SPACING);
if (notebook->homogeneous && !notebook->scrollable)
widget->requisition.width = MAX (widget->requisition.width,
vis_pages * tab_max +
TAB_OVERLAP);
else
widget->requisition.width = MAX (widget->requisition.width,
tab_width + TAB_OVERLAP);
widget->requisition.height += tab_height;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
if (tab_width == 0)
break;
if (notebook->scrollable && vis_pages > 1 &&
widget->requisition.height < tab_height)
tab_width = MAX (tab_width, ARROW_SPACING + 2 * ARROW_SIZE);
padding = 2 * (TAB_CURVATURE + focus_width +
notebook->tab_vborder) - TAB_OVERLAP;
tab_max += padding;
while (children)
{
page = children->data;
children = children->next;
if (!GTK_WIDGET_VISIBLE (page->child))
continue;
page->requisition.width = tab_width;
if (notebook->homogeneous)
page->requisition.height = tab_max;
else
page->requisition.height += padding;
tab_height += page->requisition.height;
}
if (notebook->scrollable && vis_pages > 1 &&
widget->requisition.height < tab_height)
tab_height = tab_max + ARROW_SIZE + ARROW_SPACING;
widget->requisition.width += tab_width;
if (notebook->homogeneous && !notebook->scrollable)
widget->requisition.height =
MAX (widget->requisition.height,
vis_pages * tab_max + TAB_OVERLAP);
else
widget->requisition.height =
MAX (widget->requisition.height,
tab_height + TAB_OVERLAP);
if (!notebook->homogeneous || notebook->scrollable)
vis_pages = 1;
widget->requisition.height = MAX (widget->requisition.height,
vis_pages * tab_max +
TAB_OVERLAP);
break;
}
}
}
else
{
for (children = notebook->children; children;
children = children->next)
{
page = children->data;
if (page->tab_label && GTK_WIDGET_VISIBLE (page->tab_label))
gtk_widget_hide (page->tab_label);
}
}
}
widget->requisition.width += GTK_CONTAINER (widget)->border_width * 2;
widget->requisition.height += GTK_CONTAINER (widget)->border_width * 2;
if (switch_page)
{
if (vis_pages)
{
for (children = notebook->children; children;
children = children->next)
{
page = children->data;
if (GTK_WIDGET_VISIBLE (page->child))
{
gtk_notebook_switch_page (notebook, page, -1);
break;
}
}
}
else if (GTK_WIDGET_VISIBLE (widget))
{
widget->requisition.width = GTK_CONTAINER (widget)->border_width * 2;
widget->requisition.height= GTK_CONTAINER (widget)->border_width * 2;
}
}
if (vis_pages && !notebook->cur_page)
{
children = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE);
if (children)
{
notebook->first_tab = children;
gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (children),-1);
}
}
}
static void
gtk_notebook_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkNotebook *notebook = GTK_NOTEBOOK (widget);
gint vis_pages = 0;
gint tab_pos = get_effective_tab_pos (notebook);
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget))
{
GdkRectangle position;
if (gtk_notebook_get_event_window_position (notebook, &position))
{
gdk_window_move_resize (notebook->event_window,
position.x, position.y,
position.width, position.height);
if (GTK_WIDGET_MAPPED (notebook))
gdk_window_show_unraised (notebook->event_window);
}
else
gdk_window_hide (notebook->event_window);
}
if (notebook->children)
{
gint border_width = GTK_CONTAINER (widget)->border_width;
GtkNotebookPage *page;
GtkAllocation child_allocation;
GList *children;
child_allocation.x = widget->allocation.x + border_width;
child_allocation.y = widget->allocation.y + border_width;
child_allocation.width = MAX (1, allocation->width - border_width * 2);
child_allocation.height = MAX (1, allocation->height - border_width * 2);
if (notebook->show_tabs || notebook->show_border)
{
child_allocation.x += widget->style->xthickness;
child_allocation.y += widget->style->ythickness;
child_allocation.width = MAX (1, child_allocation.width -
widget->style->xthickness * 2);
child_allocation.height = MAX (1, child_allocation.height -
widget->style->ythickness * 2);
if (notebook->show_tabs && notebook->children && notebook->cur_page)
{
switch (tab_pos)
{
case GTK_POS_TOP:
child_allocation.y += notebook->cur_page->requisition.height;
case GTK_POS_BOTTOM:
child_allocation.height =
MAX (1, child_allocation.height -
notebook->cur_page->requisition.height);
break;
case GTK_POS_LEFT:
child_allocation.x += notebook->cur_page->requisition.width;
case GTK_POS_RIGHT:
child_allocation.width =
MAX (1, child_allocation.width -
notebook->cur_page->requisition.width);
break;
}
}
}
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
{
gtk_widget_size_allocate (page->child, &child_allocation);
vis_pages++;
}
}
gtk_notebook_pages_allocate (notebook);
}
}
static gint
gtk_notebook_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkNotebook *notebook;
GdkRectangle child_area;
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
{
notebook = GTK_NOTEBOOK (widget);
gtk_notebook_paint (widget, &event->area);
if (notebook->show_tabs)
{
if (notebook->cur_page &&
gtk_widget_intersect (notebook->cur_page->tab_label,
&event->area, &child_area))
gtk_notebook_draw_focus (widget);
}
if (notebook->cur_page)
gtk_container_propagate_expose (GTK_CONTAINER (notebook),
notebook->cur_page->child,
event);
}
return FALSE;
}
static gboolean
gtk_notebook_show_arrows (GtkNotebook *notebook)
{
gboolean show_arrow = FALSE;
GList *children;
if (!notebook->scrollable)
return FALSE;
children = notebook->children;
while (children)
{
GtkNotebookPage *page = children->data;
if (page->tab_label && !gtk_widget_get_child_visible (page->tab_label))
show_arrow = TRUE;
children = children->next;
}
return show_arrow;
}
static void
gtk_notebook_get_arrow_rect (GtkNotebook *notebook,
GdkRectangle *rectangle,
GtkNotebookArrow arrow)
{
GdkRectangle event_window_pos;
gboolean before = ARROW_IS_BEFORE (arrow);
gboolean left = ARROW_IS_LEFT (arrow);
if (gtk_notebook_get_event_window_position (notebook, &event_window_pos))
{
rectangle->width = ARROW_SIZE;
rectangle->height = ARROW_SIZE;
switch (notebook->tab_pos)
{
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
if ((before && (notebook->has_before_previous != notebook->has_before_next)) ||
(!before && (notebook->has_after_previous != notebook->has_after_next)))
rectangle->x = event_window_pos.x + (event_window_pos.width - rectangle->width) / 2;
else if (left)
rectangle->x = event_window_pos.x + event_window_pos.width / 2 - rectangle->width;
else
rectangle->x = event_window_pos.x + event_window_pos.width / 2;
rectangle->y = event_window_pos.y;
if (!before)
rectangle->y += event_window_pos.height - rectangle->height;
break;
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
if (before)
{
if (left || !notebook->has_before_previous)
rectangle->x = event_window_pos.x;
else
rectangle->x = event_window_pos.x + rectangle->width;
}
else
{
if (!left || !notebook->has_after_next)
rectangle->x = event_window_pos.x + event_window_pos.width - rectangle->width;
else
rectangle->x = event_window_pos.x + event_window_pos.width - 2 * rectangle->width;
}
rectangle->y = event_window_pos.y + (event_window_pos.height - rectangle->height) / 2;
break;
}
}
}
static GtkNotebookArrow
gtk_notebook_get_arrow (GtkNotebook *notebook,
gint x,
gint y)
{
GdkRectangle arrow_rect;
GdkRectangle event_window_pos;
gint i;
gint x0, y0;
GtkNotebookArrow arrow[4];
arrow[0] = notebook->has_before_previous ? ARROW_LEFT_BEFORE : ARROW_NONE;
arrow[1] = notebook->has_before_next ? ARROW_RIGHT_BEFORE : ARROW_NONE;
arrow[2] = notebook->has_after_previous ? ARROW_LEFT_AFTER : ARROW_NONE;
arrow[3] = notebook->has_after_next ? ARROW_RIGHT_AFTER : ARROW_NONE;
if (gtk_notebook_show_arrows (notebook))
{
gtk_notebook_get_event_window_position (notebook, &event_window_pos);
for (i = 0; i < 4; i++)
{
if (arrow[i] == ARROW_NONE)
continue;
gtk_notebook_get_arrow_rect (notebook, &arrow_rect, arrow[i]);
x0 = x - arrow_rect.x;
y0 = y - arrow_rect.y;
if (y0 >= 0 && y0 < arrow_rect.height &&
x0 >= 0 && x0 < arrow_rect.width)
return arrow[i];
}
}
return ARROW_NONE;
}
static void
gtk_notebook_do_arrow (GtkNotebook *notebook,
GtkNotebookArrow arrow)
{
GtkWidget *widget = GTK_WIDGET (notebook);
GtkDirectionType dir;
gboolean is_rtl, left;
is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
left = (ARROW_IS_LEFT (arrow) && !is_rtl) ||
(!ARROW_IS_LEFT (arrow) && is_rtl);
if (!notebook->focus_tab ||
gtk_notebook_search_page (notebook, notebook->focus_tab,
left ? STEP_PREV : STEP_NEXT,
TRUE))
{
if (notebook->tab_pos == GTK_POS_LEFT ||
notebook->tab_pos == GTK_POS_RIGHT)
dir = ARROW_IS_LEFT (arrow) ? GTK_DIR_UP : GTK_DIR_DOWN;
else
dir = ARROW_IS_LEFT (arrow) ? GTK_DIR_LEFT : GTK_DIR_RIGHT;
gtk_widget_child_focus (widget, dir);
}
}
static gboolean
gtk_notebook_arrow_button_press (GtkNotebook *notebook,
GtkNotebookArrow arrow,
GdkEventButton *event)
{
GtkWidget *widget = GTK_WIDGET (notebook);
gboolean is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
gboolean left = (ARROW_IS_LEFT (arrow) && !is_rtl) ||
(!ARROW_IS_LEFT (arrow) && is_rtl);
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
notebook->button = event->button;
notebook->click_child = arrow;
if (event->button == 1)
{
gtk_notebook_do_arrow (notebook, arrow);
if (!notebook->timer)
{
notebook->timer = g_timeout_add (NOTEBOOK_INIT_SCROLL_DELAY,
(GSourceFunc) gtk_notebook_timer,
(gpointer) notebook);
notebook->need_timer = TRUE;
}
}
else if (event->button == 2)
gtk_notebook_page_select (notebook, TRUE);
else if (event->button == 3)
gtk_notebook_switch_focus_tab (notebook,
gtk_notebook_search_page (notebook,
NULL,
left ? STEP_NEXT : STEP_PREV,
TRUE));
gtk_notebook_redraw_arrows (notebook);
return TRUE;
}
static gboolean
get_widget_coordinates (GtkWidget *widget,
GdkEvent *event,
gint *x,
gint *y)
{
GdkWindow *window = ((GdkEventAny *)event)->window;
gdouble tx, ty;
if (!gdk_event_get_coords (event, &tx, &ty))
return FALSE;
while (window && window != widget->window)
{
gint window_x, window_y;
gdk_window_get_position (window, &window_x, &window_y);
tx += window_x;
ty += window_y;
window = gdk_window_get_parent (window);
}
if (window)
{
*x = tx;
*y = ty;
return TRUE;
}
else
return FALSE;
}
static gboolean
gtk_notebook_scroll (GtkWidget *widget,
GdkEventScroll *event)
{
GtkNotebook *notebook = GTK_NOTEBOOK (widget);
GtkWidget* child;
GtkWidget* originator;
if (!notebook->cur_page)
return FALSE;
child = notebook->cur_page->child;
originator = gtk_get_event_widget ((GdkEvent *)event);
/* ignore scroll events from the content of the page */
if (!originator || gtk_widget_is_ancestor (originator, child))
return FALSE;
switch (event->direction)
{
case GDK_SCROLL_RIGHT:
case GDK_SCROLL_DOWN:
gtk_notebook_next_page (notebook);
break;
case GDK_SCROLL_LEFT:
case GDK_SCROLL_UP:
gtk_notebook_prev_page (notebook);
break;
}
return TRUE;
}
static gboolean
gtk_notebook_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkNotebook *notebook = GTK_NOTEBOOK (widget);
GtkNotebookPage *page;
GList *children;
GtkNotebookArrow arrow;
gint num;
gint x, y;
if (event->type != GDK_BUTTON_PRESS || !notebook->children ||
notebook->button)
return FALSE;
if (!get_widget_coordinates (widget, (GdkEvent *)event, &x, &y))
return FALSE;
arrow = gtk_notebook_get_arrow (notebook, x, y);
if (arrow)
return gtk_notebook_arrow_button_press (notebook, arrow, event);
if (event->button == 3 && notebook->menu)
{
gtk_menu_popup (GTK_MENU (notebook->menu), NULL, NULL,
NULL, NULL, 3, event->time);
return TRUE;
}
if (event->button != 1)
return FALSE;
num = 0;
children = notebook->children;
while (children)
{
page = children->data;
if (GTK_WIDGET_VISIBLE (page->child) &&
page->tab_label && GTK_WIDGET_MAPPED (page->tab_label) &&
(x >= page->allocation.x) &&
(y >= page->allocation.y) &&
(x <= (page->allocation.x + page->allocation.width)) &&
(y <= (page->allocation.y + page->allocation.height)))
{
gboolean page_changed = page != notebook->cur_page;
gboolean was_focus = gtk_widget_is_focus (widget);
gtk_notebook_switch_focus_tab (notebook, children);
gtk_widget_grab_focus (widget);
if (page_changed && !was_focus)
gtk_widget_child_focus (page->child, GTK_DIR_TAB_FORWARD);
break;
}
children = children->next;
num++;
}
return TRUE;
}
static void
stop_scrolling (GtkNotebook *notebook)
{
if (notebook->timer)
{
g_source_remove (notebook->timer);
notebook->timer = 0;
notebook->need_timer = FALSE;
}
notebook->click_child = 0;
notebook->button = 0;
gtk_notebook_redraw_arrows (notebook);
}
static gint
gtk_notebook_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkNotebook *notebook;
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (event->type != GDK_BUTTON_RELEASE)
return FALSE;
notebook = GTK_NOTEBOOK (widget);
if (event->button == notebook->button)
{
stop_scrolling (notebook);
return TRUE;
}
else
return FALSE;
}
static gint
gtk_notebook_enter_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkNotebook *notebook;
GtkNotebookArrow arrow;
gint x, y;
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
notebook = GTK_NOTEBOOK (widget);
if (!get_widget_coordinates (widget, (GdkEvent *)event, &x, &y))
return FALSE;
arrow = gtk_notebook_get_arrow (notebook, x, y);
if (arrow != notebook->in_child)
{
notebook->in_child = arrow;
gtk_notebook_redraw_arrows (notebook);
return TRUE;
}
return TRUE;
}
static gint
gtk_notebook_leave_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkNotebook *notebook = GTK_NOTEBOOK (widget);
GtkNotebookArrow arrow;
gint x, y;
if (!get_widget_coordinates (widget, (GdkEvent *)event, &x, &y))
return FALSE;
arrow = gtk_notebook_get_arrow (notebook, x, y);
if (notebook->in_child)
{
notebook->in_child = 0;
gtk_notebook_redraw_arrows (notebook);
}
return TRUE;
}
static gint
gtk_notebook_motion_notify (GtkWidget *widget,
GdkEventMotion *event)
{
GtkNotebook *notebook = GTK_NOTEBOOK (widget);
GtkNotebookArrow arrow;
gint x, y;
if (notebook->button)
return FALSE;
if (!get_widget_coordinates (widget, (GdkEvent *)event, &x, &y))
return FALSE;
arrow = gtk_notebook_get_arrow (notebook, x, y);
if (arrow != notebook->in_child)
{
notebook->in_child = arrow;
gtk_notebook_redraw_arrows (notebook);
}
return TRUE;
}
static void
gtk_notebook_grab_notify (GtkWidget *widget,
gboolean was_grabbed)
{
if (!was_grabbed)
stop_scrolling (GTK_NOTEBOOK (widget));
}
static void
gtk_notebook_state_changed (GtkWidget *widget,
GtkStateType previous_state)
{
if (!GTK_WIDGET_IS_SENSITIVE (widget))
stop_scrolling (GTK_NOTEBOOK (widget));
}
static gint
gtk_notebook_focus_in (GtkWidget *widget,
GdkEventFocus *event)
{
GTK_NOTEBOOK (widget)->child_has_focus = FALSE;
gtk_notebook_redraw_tabs (GTK_NOTEBOOK (widget));
return FALSE;
}
static gint
gtk_notebook_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
gtk_notebook_redraw_tabs (GTK_NOTEBOOK (widget));
return FALSE;
}
static void
gtk_notebook_draw_focus (GtkWidget *widget)
{
GtkNotebook *notebook = GTK_NOTEBOOK (widget);
if (GTK_WIDGET_DRAWABLE (widget) && notebook->show_tabs &&
notebook->focus_tab)
{
GtkNotebookPage *page;
GdkRectangle area;
gint focus_width;
gtk_widget_style_get (widget, "focus-line-width", &focus_width, NULL);
page = notebook->focus_tab->data;
area.x = page->tab_label->allocation.x - focus_width;
area.y = page->tab_label->allocation.y - focus_width;
area.width = page->tab_label->allocation.width + 2 * focus_width;
area.height = page->tab_label->allocation.height + 2 * focus_width;
gtk_notebook_draw_tab (GTK_NOTEBOOK (widget), page, &area);
}
}
static void
gtk_notebook_style_set (GtkWidget *widget,
GtkStyle *previous)
{
GtkNotebook *notebook;
gboolean has_before_previous;
gboolean has_before_next;
gboolean has_after_previous;
gboolean has_after_next;
notebook = GTK_NOTEBOOK (widget);
gtk_widget_style_get (widget,
"has_backward_stepper", &has_before_previous,
"has_secondary_forward_stepper", &has_before_next,
"has_secondary_backward_stepper", &has_after_previous,
"has_forward_stepper", &has_after_next,
NULL);
notebook->has_before_previous = has_before_previous;
notebook->has_before_next = has_before_next;
notebook->has_after_previous = has_after_previous;
notebook->has_after_next = has_after_next;
(* GTK_WIDGET_CLASS (parent_class)->style_set) (widget, previous);
}
/* Private GtkContainer Methods :
*
* gtk_notebook_set_child_arg
* gtk_notebook_get_child_arg
* gtk_notebook_add
* gtk_notebook_remove
* gtk_notebook_focus
* gtk_notebook_set_focus_child
* gtk_notebook_child_type
* gtk_notebook_forall
*/
static void
gtk_notebook_set_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
gboolean expand;
gboolean fill;
GtkPackType pack_type;
/* not finding child's page is valid for menus or labels */
if (!gtk_notebook_find_child (GTK_NOTEBOOK (container), child, NULL))
return;
switch (property_id)
{
case CHILD_PROP_TAB_LABEL:
/* a NULL pointer indicates a default_tab setting, otherwise
* we need to set the associated label
*/
gtk_notebook_set_tab_label_text (GTK_NOTEBOOK (container), child,
g_value_get_string (value));
break;
case CHILD_PROP_MENU_LABEL:
gtk_notebook_set_menu_label_text (GTK_NOTEBOOK (container), child,
g_value_get_string (value));
break;
case CHILD_PROP_POSITION:
gtk_notebook_reorder_child (GTK_NOTEBOOK (container), child,
g_value_get_int (value));
break;
case CHILD_PROP_TAB_EXPAND:
gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child,
&expand, &fill, &pack_type);
gtk_notebook_set_tab_label_packing (GTK_NOTEBOOK (container), child,
g_value_get_boolean (value),
fill, pack_type);
break;
case CHILD_PROP_TAB_FILL:
gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child,
&expand, &fill, &pack_type);
gtk_notebook_set_tab_label_packing (GTK_NOTEBOOK (container), child,
expand,
g_value_get_boolean (value),
pack_type);
break;
case CHILD_PROP_TAB_PACK:
gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child,
&expand, &fill, &pack_type);
gtk_notebook_set_tab_label_packing (GTK_NOTEBOOK (container), child,
expand, fill,
g_value_get_enum (value));
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
break;
}
}
static void
gtk_notebook_get_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GList *list;
GtkNotebook *notebook;
GtkWidget *label;
gboolean expand;
gboolean fill;
GtkPackType pack_type;
notebook = GTK_NOTEBOOK (container);
/* not finding child's page is valid for menus or labels */
list = gtk_notebook_find_child (notebook, child, NULL);
if (!list)
{
/* nothing to set on labels or menus */
g_param_value_set_default (pspec, value);
return;
}
switch (property_id)
{
case CHILD_PROP_TAB_LABEL:
label = gtk_notebook_get_tab_label (notebook, child);
if (label && GTK_IS_LABEL (label))
g_value_set_string (value, GTK_LABEL (label)->label);
else
g_value_set_string (value, NULL);
break;
case CHILD_PROP_MENU_LABEL:
label = gtk_notebook_get_menu_label (notebook, child);
if (label && GTK_IS_LABEL (label))
g_value_set_string (value, GTK_LABEL (label)->label);
else
g_value_set_string (value, NULL);
break;
case CHILD_PROP_POSITION:
g_value_set_int (value, g_list_position (notebook->children, list));
break;
case CHILD_PROP_TAB_EXPAND:
gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child,
&expand, NULL, NULL);
g_value_set_boolean (value, expand);
break;
case CHILD_PROP_TAB_FILL:
gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child,
NULL, &fill, NULL);
g_value_set_boolean (value, fill);
break;
case CHILD_PROP_TAB_PACK:
gtk_notebook_query_tab_label_packing (GTK_NOTEBOOK (container), child,
NULL, NULL, &pack_type);
g_value_set_enum (value, pack_type);
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
break;
}
}
static void
gtk_notebook_add (GtkContainer *container,
GtkWidget *widget)
{
g_return_if_fail (GTK_IS_NOTEBOOK (container));
gtk_notebook_insert_page_menu (GTK_NOTEBOOK (container), widget,
NULL, NULL, -1);
}
static void
gtk_notebook_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
g_return_if_fail (GTK_IS_NOTEBOOK (container));
g_return_if_fail (widget != NULL);
notebook = GTK_NOTEBOOK (container);
children = notebook->children;
while (children)
{
page = children->data;
if (page->child == widget)
{
gtk_notebook_real_remove (notebook, children, FALSE);
break;
}
children = children->next;
}
}
static gboolean
focus_tabs_in (GtkNotebook *notebook)
{
if (notebook->show_tabs && notebook->cur_page)
{
gtk_widget_grab_focus (GTK_WIDGET (notebook));
gtk_notebook_switch_focus_tab (notebook,
g_list_find (notebook->children,
notebook->cur_page));
return TRUE;
}
else
return FALSE;
}
static gboolean
focus_tabs_move (GtkNotebook *notebook,
GtkDirectionType direction,
gint search_direction)
{
GList *new_page;
new_page = gtk_notebook_search_page (notebook, notebook->focus_tab,
search_direction, TRUE);
if (new_page)
gtk_notebook_switch_focus_tab (notebook, new_page);
else
gdk_display_beep (gtk_widget_get_display (GTK_WIDGET (notebook)));
return TRUE;
}
static gboolean
focus_child_in (GtkNotebook *notebook,
GtkDirectionType direction)
{
if (notebook->cur_page)
return gtk_widget_child_focus (notebook->cur_page->child, direction);
else
return FALSE;
}
/* Focus in the notebook can either be on the pages, or on
* the tabs.
*/
static gint
gtk_notebook_focus (GtkWidget *widget,
GtkDirectionType direction)
{
GtkWidget *old_focus_child;
GtkNotebook *notebook;
GtkDirectionType effective_direction;
gboolean widget_is_focus;
GtkContainer *container;
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
container = GTK_CONTAINER (widget);
notebook = GTK_NOTEBOOK (container);
if (notebook->focus_out)
{
notebook->focus_out = FALSE; /* Clear this to catch the wrap-around case */
return FALSE;
}
widget_is_focus = gtk_widget_is_focus (widget);
old_focus_child = container->focus_child;
effective_direction = get_effective_direction (notebook, direction);
if (old_focus_child) /* Focus on page child */
{
if (gtk_widget_child_focus (old_focus_child, direction))
return TRUE;
switch (effective_direction)
{
case GTK_DIR_TAB_BACKWARD:
case GTK_DIR_UP:
/* Focus onto the tabs */
return focus_tabs_in (notebook);
case GTK_DIR_DOWN:
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_LEFT:
case GTK_DIR_RIGHT:
return FALSE;
}
}
else if (widget_is_focus) /* Focus was on tabs */
{
switch (effective_direction)
{
case GTK_DIR_TAB_BACKWARD:
case GTK_DIR_UP:
return FALSE;
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_DOWN:
/* We use TAB_FORWARD rather than direction so that we focus a more
* predictable widget for the user; users may be using arrow focusing
* in this situation even if they don't usually use arrow focusing.
*/
return focus_child_in (notebook, GTK_DIR_TAB_FORWARD);
case GTK_DIR_LEFT:
return focus_tabs_move (notebook, direction, STEP_PREV);
case GTK_DIR_RIGHT:
return focus_tabs_move (notebook, direction, STEP_NEXT);
}
}
else /* Focus was not on widget */
{
switch (effective_direction)
{
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_DOWN:
if (focus_tabs_in (notebook))
return TRUE;
if (focus_child_in (notebook, direction))
return TRUE;
return FALSE;
case GTK_DIR_TAB_BACKWARD:
case GTK_DIR_UP:
if (focus_child_in (notebook, direction))
return TRUE;
if (focus_tabs_in (notebook))
return TRUE;
return FALSE;
case GTK_DIR_LEFT:
case GTK_DIR_RIGHT:
return focus_child_in (notebook, direction);
}
}
g_assert_not_reached ();
return FALSE;
}
static void
gtk_notebook_set_focus_child (GtkContainer *container,
GtkWidget *child)
{
GtkNotebook *notebook = GTK_NOTEBOOK (container);
GtkWidget *page_child;
GtkWidget *toplevel;
/* If the old focus widget was within a page of the notebook,
* (child may either be NULL or not in this case), record it
* for future use if we switch to the page with a mnemonic.
*/
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (container));
if (toplevel && GTK_WIDGET_TOPLEVEL (toplevel))
{
page_child = GTK_WINDOW (toplevel)->focus_widget;
while (page_child)
{
if (page_child->parent == GTK_WIDGET (container))
{
GList *list = gtk_notebook_find_child (notebook, page_child, NULL);
if (list != NULL)
{
GtkNotebookPage *page = list->data;
if (page->last_focus_child)
g_object_remove_weak_pointer (G_OBJECT (page->last_focus_child), (gpointer *)&page->last_focus_child);
page->last_focus_child = GTK_WINDOW (toplevel)->focus_widget;
g_object_add_weak_pointer (G_OBJECT (page->last_focus_child), (gpointer *)&page->last_focus_child);
break;
}
}
page_child = page_child->parent;
}
}
if (child)
{
g_return_if_fail (GTK_IS_WIDGET (child));
notebook->child_has_focus = TRUE;
if (!notebook->focus_tab)
{
GList *children;
GtkNotebookPage *page;
children = notebook->children;
while (children)
{
page = children->data;
if (page->child == child || page->tab_label == child)
gtk_notebook_switch_focus_tab (notebook, children);
children = children->next;
}
}
}
parent_class->set_focus_child (container, child);
}
static void
gtk_notebook_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkNotebook *notebook;
GList *children;
g_return_if_fail (GTK_IS_NOTEBOOK (container));
g_return_if_fail (callback != NULL);
notebook = GTK_NOTEBOOK (container);
children = notebook->children;
while (children)
{
GtkNotebookPage *page;
page = children->data;
children = children->next;
(* callback) (page->child, callback_data);
if (include_internals)
{
if (page->tab_label)
(* callback) (page->tab_label, callback_data);
}
}
}
static GType
gtk_notebook_child_type (GtkContainer *container)
{
return GTK_TYPE_WIDGET;
}
/* Private GtkNotebook Functions:
*
* gtk_notebook_redraw_tabs
* gtk_notebook_real_remove
* gtk_notebook_update_labels
* gtk_notebook_timer
* gtk_notebook_page_compare
* gtk_notebook_real_page_position
* gtk_notebook_search_page
*/
static void
gtk_notebook_redraw_tabs (GtkNotebook *notebook)
{
GtkWidget *widget;
GtkNotebookPage *page;
GdkRectangle redraw_rect;
gint border;
gint tab_pos = get_effective_tab_pos (notebook);
widget = GTK_WIDGET (notebook);
border = GTK_CONTAINER (notebook)->border_width;
if (!GTK_WIDGET_MAPPED (notebook) || !notebook->first_tab)
return;
page = notebook->first_tab->data;
redraw_rect.x = border;
redraw_rect.y = border;
switch (tab_pos)
{
case GTK_POS_BOTTOM:
redraw_rect.y = (widget->allocation.height - border -
page->allocation.height -
widget->style->ythickness);
if (page != notebook->cur_page)
redraw_rect.y -= widget->style->ythickness;
/* fall through */
case GTK_POS_TOP:
redraw_rect.width = widget->allocation.width - 2 * border;
redraw_rect.height = (page->allocation.height +
widget->style->ythickness);
if (page != notebook->cur_page)
redraw_rect.height += widget->style->ythickness;
break;
case GTK_POS_RIGHT:
redraw_rect.x = (widget->allocation.width - border -
page->allocation.width -
widget->style->xthickness);
if (page != notebook->cur_page)
redraw_rect.x -= widget->style->xthickness;
/* fall through */
case GTK_POS_LEFT:
redraw_rect.width = (page->allocation.width +
widget->style->xthickness);
redraw_rect.height = widget->allocation.height - 2 * border;
if (page != notebook->cur_page)
redraw_rect.width += widget->style->xthickness;
break;
}
redraw_rect.x += widget->allocation.x;
redraw_rect.y += widget->allocation.y;
gdk_window_invalidate_rect (widget->window, &redraw_rect, TRUE);
}
static void
gtk_notebook_redraw_arrows (GtkNotebook *notebook)
{
if (GTK_WIDGET_MAPPED (notebook) && gtk_notebook_show_arrows (notebook))
{
GdkRectangle rect;
gint i;
GtkNotebookArrow arrow[4];
arrow[0] = notebook->has_before_previous ? ARROW_LEFT_BEFORE : ARROW_NONE;
arrow[1] = notebook->has_before_next ? ARROW_RIGHT_BEFORE : ARROW_NONE;
arrow[2] = notebook->has_after_previous ? ARROW_LEFT_AFTER : ARROW_NONE;
arrow[3] = notebook->has_after_next ? ARROW_RIGHT_AFTER : ARROW_NONE;
for (i = 0; i < 4; i++)
{
if (arrow[i] == ARROW_NONE)
continue;
gtk_notebook_get_arrow_rect (notebook, &rect, arrow[i]);
gdk_window_invalidate_rect (GTK_WIDGET (notebook)->window,
&rect, FALSE);
}
}
}
static gint
gtk_notebook_timer (GtkNotebook *notebook)
{
gboolean retval = FALSE;
GDK_THREADS_ENTER ();
if (notebook->timer)
{
gtk_notebook_do_arrow (notebook, notebook->click_child);
if (notebook->need_timer)
{
notebook->need_timer = FALSE;
notebook->timer = g_timeout_add (NOTEBOOK_SCROLL_DELAY,
(GSourceFunc) gtk_notebook_timer,
(gpointer) notebook);
}
else
retval = TRUE;
}
GDK_THREADS_LEAVE ();
return retval;
}
static gint
gtk_notebook_page_compare (gconstpointer a,
gconstpointer b)
{
return (((GtkNotebookPage *) a)->child != b);
}
static GList*
gtk_notebook_find_child (GtkNotebook *notebook,
GtkWidget *child,
const gchar *function)
{
GList *list = g_list_find_custom (notebook->children, child,
gtk_notebook_page_compare);
#ifndef G_DISABLE_CHECKS
if (!list && function)
g_warning ("%s: unable to find child %p in notebook %p",
function, child, notebook);
#endif
return list;
}
static void
gtk_notebook_remove_tab_label (GtkNotebook *notebook,
GtkNotebookPage *page)
{
if (page->tab_label)
{
if (page->mnemonic_activate_signal)
g_signal_handler_disconnect (page->tab_label,
page->mnemonic_activate_signal);
page->mnemonic_activate_signal = 0;
gtk_widget_set_state (page->tab_label, GTK_STATE_NORMAL);
gtk_widget_unparent (page->tab_label);
}
}
static void
gtk_notebook_real_remove (GtkNotebook *notebook,
GList *list,
gboolean destroying)
{
GtkNotebookPage *page;
GList * next_list;
gint need_resize = FALSE;
next_list = gtk_notebook_search_page (notebook, list, STEP_PREV, TRUE);
if (!next_list)
next_list = gtk_notebook_search_page (notebook, list, STEP_NEXT, TRUE);
if (notebook->cur_page == list->data)
{
notebook->cur_page = NULL;
if (next_list && !destroying)
gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (next_list), -1);
}
if (list == notebook->first_tab)
notebook->first_tab = next_list;
if (list == notebook->focus_tab && !destroying)
gtk_notebook_switch_focus_tab (notebook, next_list);
page = list->data;
if (GTK_WIDGET_VISIBLE (page->child) && GTK_WIDGET_VISIBLE (notebook))
need_resize = TRUE;
gtk_widget_unparent (page->child);
gtk_notebook_remove_tab_label (notebook, page);
if (notebook->menu)
{
gtk_container_remove (GTK_CONTAINER (notebook->menu),
page->menu_label->parent);
gtk_widget_queue_resize (notebook->menu);
}
if (!page->default_menu)
g_object_unref (page->menu_label);
notebook->children = g_list_remove_link (notebook->children, list);
g_list_free (list);
if (page->last_focus_child)
{
g_object_remove_weak_pointer (G_OBJECT (page->last_focus_child), (gpointer *)&page->last_focus_child);
page->last_focus_child = NULL;
}
g_free (page);
gtk_notebook_update_labels (notebook);
if (need_resize)
gtk_widget_queue_resize (GTK_WIDGET (notebook));
}
static void
gtk_notebook_update_labels (GtkNotebook *notebook)
{
GtkNotebookPage *page;
GList *list;
gchar string[32];
gint page_num = 1;
for (list = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, FALSE);
list;
list = gtk_notebook_search_page (notebook, list, STEP_NEXT, FALSE))
{
page = list->data;
g_snprintf (string, sizeof(string), _("Page %u"), page_num++);
if (notebook->show_tabs)
{
if (page->default_tab)
{
if (!page->tab_label)
{
page->tab_label = gtk_label_new (string);
gtk_widget_set_parent (page->tab_label,
GTK_WIDGET (notebook));
}
else
gtk_label_set_text (GTK_LABEL (page->tab_label), string);
}
if (GTK_WIDGET_VISIBLE (page->child) &&
!GTK_WIDGET_VISIBLE (page->tab_label))
gtk_widget_show (page->tab_label);
else if (!GTK_WIDGET_VISIBLE (page->child) &&
GTK_WIDGET_VISIBLE (page->tab_label))
gtk_widget_hide (page->tab_label);
}
if (notebook->menu && page->default_menu)
{
if (page->tab_label && GTK_IS_LABEL (page->tab_label))
gtk_label_set_text (GTK_LABEL (page->menu_label),
GTK_LABEL (page->tab_label)->label);
else
gtk_label_set_text (GTK_LABEL (page->menu_label), string);
}
}
}
static gint
gtk_notebook_real_page_position (GtkNotebook *notebook,
GList *list)
{
GList *work;
gint count_start;
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1);
g_return_val_if_fail (list != NULL, -1);
for (work = notebook->children, count_start = 0;
work && work != list; work = work->next)
if (GTK_NOTEBOOK_PAGE (work)->pack == GTK_PACK_START)
count_start++;
if (!work)
return -1;
if (GTK_NOTEBOOK_PAGE (list)->pack == GTK_PACK_START)
return count_start;
return (count_start + g_list_length (list) - 1);
}
static GList *
gtk_notebook_search_page (GtkNotebook *notebook,
GList *list,
gint direction,
gboolean find_visible)
{
GtkNotebookPage *page = NULL;
GList *old_list = NULL;
gint flag = 0;
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL);
switch (direction)
{
case STEP_PREV:
flag = GTK_PACK_END;
break;
case STEP_NEXT:
flag = GTK_PACK_START;
break;
}
if (list)
page = list->data;
if (!page || page->pack == flag)
{
if (list)
{
old_list = list;
list = list->next;
}
else
list = notebook->children;
while (list)
{
page = list->data;
if (page->pack == flag &&
(!find_visible || GTK_WIDGET_VISIBLE (page->child)))
return list;
old_list = list;
list = list->next;
}
list = old_list;
}
else
{
old_list = list;
list = list->prev;
}
while (list)
{
page = list->data;
if (page->pack != flag &&
(!find_visible || GTK_WIDGET_VISIBLE (page->child)))
return list;
old_list = list;
list = list->prev;
}
return NULL;
}
/* Private GtkNotebook Drawing Functions:
*
* gtk_notebook_paint
* gtk_notebook_draw_tab
* gtk_notebook_draw_arrow
*/
static void
gtk_notebook_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
gboolean showarrow;
gint width, height;
gint x, y;
gint border_width = GTK_CONTAINER (widget)->border_width;
gint gap_x = 0, gap_width = 0, step = STEP_PREV;
gboolean is_rtl;
gint tab_pos;
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
g_return_if_fail (area != NULL);
if (!GTK_WIDGET_DRAWABLE (widget))
return;
notebook = GTK_NOTEBOOK (widget);
is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
tab_pos = get_effective_tab_pos (notebook);
if ((!notebook->show_tabs && !notebook->show_border) ||
!notebook->cur_page || !GTK_WIDGET_VISIBLE (notebook->cur_page->child))
return;
x = widget->allocation.x + border_width;
y = widget->allocation.y + border_width;
width = widget->allocation.width - border_width * 2;
height = widget->allocation.height - border_width * 2;
if (notebook->show_border && (!notebook->show_tabs || !notebook->children))
{
gtk_paint_box (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_OUT,
area, widget, "notebook",
x, y, width, height);
return;
}
if (!GTK_WIDGET_MAPPED (notebook->cur_page->tab_label))
{
page = notebook->first_tab->data;
switch (tab_pos)
{
case GTK_POS_TOP:
y += page->allocation.height + widget->style->ythickness;
case GTK_POS_BOTTOM:
height -= page->allocation.height + widget->style->ythickness;
break;
case GTK_POS_LEFT:
x += page->allocation.width + widget->style->xthickness;
case GTK_POS_RIGHT:
width -= page->allocation.width + widget->style->xthickness;
break;
}
gtk_paint_box (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_OUT,
area, widget, "notebook",
x, y, width, height);
}
else
{
switch (tab_pos)
{
case GTK_POS_TOP:
y += notebook->cur_page->allocation.height;
case GTK_POS_BOTTOM:
height -= notebook->cur_page->allocation.height;
break;
case GTK_POS_LEFT:
x += notebook->cur_page->allocation.width;
case GTK_POS_RIGHT:
width -= notebook->cur_page->allocation.width;
break;
}
switch (tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
gap_x = (notebook->cur_page->allocation.x - widget->allocation.x - border_width);
gap_width = notebook->cur_page->allocation.width;
step = is_rtl ? STEP_NEXT : STEP_PREV;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
gap_x = (notebook->cur_page->allocation.y - widget->allocation.y - border_width);
gap_width = notebook->cur_page->allocation.height;
step = STEP_PREV;
break;
}
gtk_paint_box_gap (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_OUT,
area, widget, "notebook",
x, y, width, height,
tab_pos, gap_x, gap_width);
}
showarrow = FALSE;
children = gtk_notebook_search_page (notebook, NULL, step, TRUE);
while (children)
{
page = children->data;
children = gtk_notebook_search_page (notebook, children,
step, TRUE);
if (!GTK_WIDGET_VISIBLE (page->child))
continue;
if (!GTK_WIDGET_MAPPED (page->tab_label))
showarrow = TRUE;
else if (page != notebook->cur_page)
gtk_notebook_draw_tab (notebook, page, area);
}
if (showarrow && notebook->scrollable)
{
if (notebook->has_before_previous)
gtk_notebook_draw_arrow (notebook, ARROW_LEFT_BEFORE);
if (notebook->has_before_next)
gtk_notebook_draw_arrow (notebook, ARROW_RIGHT_BEFORE);
if (notebook->has_after_previous)
gtk_notebook_draw_arrow (notebook, ARROW_LEFT_AFTER);
if (notebook->has_after_next)
gtk_notebook_draw_arrow (notebook, ARROW_RIGHT_AFTER);
}
gtk_notebook_draw_tab (notebook, notebook->cur_page, area);
}
static void
gtk_notebook_draw_tab (GtkNotebook *notebook,
GtkNotebookPage *page,
GdkRectangle *area)
{
GdkRectangle child_area;
GdkRectangle page_area;
GtkStateType state_type;
GtkPositionType gap_side;
gint tab_pos = get_effective_tab_pos (notebook);
g_return_if_fail (notebook != NULL);
g_return_if_fail (page != NULL);
g_return_if_fail (area != NULL);
if (!GTK_WIDGET_MAPPED (page->tab_label) ||
(page->allocation.width == 0) || (page->allocation.height == 0))
return;
page_area.x = page->allocation.x;
page_area.y = page->allocation.y;
page_area.width = page->allocation.width;
page_area.height = page->allocation.height;
if (gdk_rectangle_intersect (&page_area, area, &child_area))
{
GtkWidget *widget;
widget = GTK_WIDGET (notebook);
gap_side = 0;
switch (tab_pos)
{
case GTK_POS_TOP:
gap_side = GTK_POS_BOTTOM;
break;
case GTK_POS_BOTTOM:
gap_side = GTK_POS_TOP;
break;
case GTK_POS_LEFT:
gap_side = GTK_POS_RIGHT;
break;
case GTK_POS_RIGHT:
gap_side = GTK_POS_LEFT;
break;
}
if (notebook->cur_page == page)
state_type = GTK_STATE_NORMAL;
else
state_type = GTK_STATE_ACTIVE;
gtk_paint_extension(widget->style, widget->window,
state_type, GTK_SHADOW_OUT,
area, widget, "tab",
page_area.x, page_area.y,
page_area.width, page_area.height,
gap_side);
if ((GTK_WIDGET_HAS_FOCUS (widget)) &&
notebook->focus_tab && (notebook->focus_tab->data == page))
{
gint focus_width;
gtk_widget_style_get (widget, "focus-line-width", &focus_width, NULL);
gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
area, widget, "tab",
page->tab_label->allocation.x - focus_width,
page->tab_label->allocation.y - focus_width,
page->tab_label->allocation.width + 2 * focus_width,
page->tab_label->allocation.height + 2 * focus_width);
}
if (gtk_widget_intersect (page->tab_label, area, &child_area) &&
GTK_WIDGET_DRAWABLE (page->tab_label))
{
GdkEvent *expose_event = gdk_event_new (GDK_EXPOSE);
/* This is a lame hack since all this code needs rewriting anyhow */
expose_event->expose.window = g_object_ref (page->tab_label->window);
expose_event->expose.area = child_area;
expose_event->expose.region = gdk_region_rectangle (&child_area);
expose_event->expose.send_event = TRUE;
expose_event->expose.count = 0;
gtk_container_propagate_expose (GTK_CONTAINER (notebook), page->tab_label, (GdkEventExpose *)expose_event);
gdk_event_free (expose_event);
}
}
}
static void
gtk_notebook_draw_arrow (GtkNotebook *notebook,
GtkNotebookArrow nbarrow)
{
GtkStateType state_type;
GtkShadowType shadow_type;
GtkWidget *widget;
GdkRectangle arrow_rect;
GtkArrowType arrow;
gboolean is_rtl, left;
gtk_notebook_get_arrow_rect (notebook, &arrow_rect, nbarrow);
widget = GTK_WIDGET (notebook);
is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
left = (ARROW_IS_LEFT (nbarrow) && !is_rtl) ||
(!ARROW_IS_LEFT (nbarrow) && is_rtl);
if (GTK_WIDGET_DRAWABLE (notebook))
{
if (notebook->in_child == nbarrow)
{
if (notebook->click_child == nbarrow)
state_type = GTK_STATE_ACTIVE;
else
state_type = GTK_STATE_PRELIGHT;
}
else
state_type = GTK_WIDGET_STATE (widget);
if (notebook->click_child == nbarrow)
shadow_type = GTK_SHADOW_IN;
else
shadow_type = GTK_SHADOW_OUT;
if (notebook->focus_tab &&
!gtk_notebook_search_page (notebook, notebook->focus_tab,
left? STEP_PREV : STEP_NEXT, TRUE))
{
shadow_type = GTK_SHADOW_ETCHED_IN;
state_type = GTK_STATE_INSENSITIVE;
}
if (notebook->tab_pos == GTK_POS_LEFT ||
notebook->tab_pos == GTK_POS_RIGHT)
arrow = (ARROW_IS_LEFT (nbarrow) ? GTK_ARROW_UP : GTK_ARROW_DOWN);
else
arrow = (ARROW_IS_LEFT (nbarrow) ? GTK_ARROW_LEFT : GTK_ARROW_RIGHT);
gtk_paint_arrow (widget->style, widget->window, state_type,
shadow_type, NULL, widget, "notebook",
arrow, TRUE, arrow_rect.x, arrow_rect.y,
ARROW_SIZE, ARROW_SIZE);
}
}
/* Private GtkNotebook Size Allocate Functions:
*
* gtk_notebook_pages_allocate
* gtk_notebook_page_allocate
* gtk_notebook_calc_tabs
*/
static void
gtk_notebook_pages_allocate (GtkNotebook *notebook)
{
GtkWidget *widget = GTK_WIDGET (notebook);
GtkContainer *container = GTK_CONTAINER (notebook);
GtkNotebookPage *page = NULL;
GtkAllocation *allocation = &widget->allocation;
GtkAllocation child_allocation;
GList *children = NULL;
GList *last_child = NULL;
gboolean showarrow = FALSE;
gint tab_space = 0;
gint delta;
gint i;
gint n = 1;
gint old_fill = 0;
gint new_fill = 0;
gint tab_pos = get_effective_tab_pos (notebook);
gboolean is_rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL &&
(tab_pos == GTK_POS_TOP || tab_pos == GTK_POS_BOTTOM));
gint memo_x;
if (!notebook->show_tabs || !notebook->children || !notebook->cur_page)
return;
child_allocation.x = widget->allocation.x + container->border_width;
child_allocation.y = widget->allocation.y + container->border_width;
switch (tab_pos)
{
case GTK_POS_BOTTOM:
child_allocation.y = (widget->allocation.y +
allocation->height -
notebook->cur_page->requisition.height -
container->border_width);
/* fall through */
case GTK_POS_TOP:
child_allocation.height = notebook->cur_page->requisition.height;
break;
case GTK_POS_RIGHT:
child_allocation.x = (widget->allocation.x +
allocation->width -
notebook->cur_page->requisition.width -
container->border_width);
/* fall through */
case GTK_POS_LEFT:
child_allocation.width = notebook->cur_page->requisition.width;
break;
}
if (notebook->scrollable)
{
GList *focus_tab;
children = notebook->children;
if (notebook->focus_tab)
focus_tab = notebook->focus_tab;
else if (notebook->first_tab)
focus_tab = notebook->first_tab;
else
focus_tab = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE);
switch (tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
tab_space += page->requisition.width;
}
if (tab_space >
allocation->width - 2 * container->border_width - TAB_OVERLAP)
{
showarrow = TRUE;
page = focus_tab->data;
tab_space = allocation->width - TAB_OVERLAP -
page->requisition.width - 2 * container->border_width;
if (notebook->has_after_previous)
tab_space -= ARROW_SPACING + ARROW_SIZE;
if (notebook->has_after_next)
tab_space -= ARROW_SPACING + ARROW_SIZE;
if (notebook->has_before_previous)
{
tab_space -= ARROW_SPACING + ARROW_SIZE;
child_allocation.x += ARROW_SPACING + ARROW_SIZE;
}
if (notebook->has_before_next)
{
tab_space -= ARROW_SPACING + ARROW_SIZE;
child_allocation.x += ARROW_SPACING + ARROW_SIZE;
}
}
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
tab_space += page->requisition.height;
}
if (tab_space >
(allocation->height - 2 * container->border_width - TAB_OVERLAP))
{
showarrow = TRUE;
page = focus_tab->data;
tab_space = allocation->height
- TAB_OVERLAP - 2 * container->border_width
- page->requisition.height;
if (notebook->has_after_previous || notebook->has_after_next)
tab_space -= ARROW_SPACING + ARROW_SIZE;
if (notebook->has_before_previous || notebook->has_before_next)
{
tab_space -= ARROW_SPACING + ARROW_SIZE;
child_allocation.y += ARROW_SPACING + ARROW_SIZE;
}
}
break;
}
if (showarrow) /* first_tab <- focus_tab */
{
if (tab_space <= 0)
{
notebook->first_tab = focus_tab;
last_child = gtk_notebook_search_page (notebook, focus_tab,
STEP_NEXT, TRUE);
}
else
{
children = NULL;
if (notebook->first_tab && notebook->first_tab != focus_tab)
{
/* Is first_tab really predecessor of focus_tab ? */
page = notebook->first_tab->data;
if (GTK_WIDGET_VISIBLE (page->child))
for (children = focus_tab;
children && children != notebook->first_tab;
children = gtk_notebook_search_page (notebook,
children,
STEP_PREV,
TRUE));
}
if (!children)
notebook->first_tab = focus_tab;
else
gtk_notebook_calc_tabs (notebook,
gtk_notebook_search_page (notebook,
focus_tab,
STEP_PREV,
TRUE),
&(notebook->first_tab), &tab_space,
STEP_PREV);
if (tab_space <= 0)
{
notebook->first_tab =
gtk_notebook_search_page (notebook, notebook->first_tab,
STEP_NEXT, TRUE);
if (!notebook->first_tab)
notebook->first_tab = focus_tab;
last_child = gtk_notebook_search_page (notebook, focus_tab,
STEP_NEXT, TRUE);
}
else /* focus_tab -> end */
{
if (!notebook->first_tab)
notebook->first_tab = gtk_notebook_search_page (notebook,
NULL,
STEP_NEXT,
TRUE);
children = NULL;
gtk_notebook_calc_tabs (notebook,
gtk_notebook_search_page (notebook,
focus_tab,
STEP_NEXT,
TRUE),
&children, &tab_space, STEP_NEXT);
if (tab_space <= 0)
last_child = children;
else /* start <- first_tab */
{
last_child = NULL;
children = NULL;
gtk_notebook_calc_tabs
(notebook,
gtk_notebook_search_page (notebook,
notebook->first_tab,
STEP_PREV,
TRUE),
&children, &tab_space, STEP_PREV);
notebook->first_tab = gtk_notebook_search_page(notebook,
children,
STEP_NEXT,
TRUE);
}
}
}
if (tab_space < 0)
{
tab_space = -tab_space;
n = 0;
for (children = notebook->first_tab;
children && children != last_child;
children = gtk_notebook_search_page (notebook, children,
STEP_NEXT, TRUE))
n++;
}
else
tab_space = 0;
/*unmap all non-visible tabs*/
for (children = gtk_notebook_search_page (notebook, NULL,
STEP_NEXT, TRUE);
children && children != notebook->first_tab;
children = gtk_notebook_search_page (notebook, children,
STEP_NEXT, TRUE))
{
page = children->data;
if (page->tab_label)
gtk_widget_set_child_visible (page->tab_label, FALSE);
}
for (children = last_child; children;
children = gtk_notebook_search_page (notebook, children,
STEP_NEXT, TRUE))
{
page = children->data;
if (page->tab_label)
gtk_widget_set_child_visible (page->tab_label, FALSE);
}
}
else /* !showarrow */
{
notebook->first_tab = gtk_notebook_search_page (notebook, NULL,
STEP_NEXT, TRUE);
tab_space = 0;
}
}
if (!showarrow)
{
gint c = 0;
n = 0;
children = notebook->children;
switch (tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
{
c++;
tab_space += page->requisition.width;
if (page->expand)
n++;
}
}
tab_space -= allocation->width;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
{
c++;
tab_space += page->requisition.height;
if (page->expand)
n++;
}
}
tab_space -= allocation->height;
}
tab_space += 2 * container->border_width + TAB_OVERLAP;
tab_space *= -1;
notebook->first_tab = gtk_notebook_search_page (notebook, NULL,
STEP_NEXT, TRUE);
if (notebook->homogeneous && n)
n = c;
}
children = notebook->first_tab;
i = 1;
memo_x = child_allocation.x;
if (notebook->children && is_rtl)
{
child_allocation.x = (allocation->x + allocation->width -
container->border_width);
if (showarrow)
{
if (notebook->has_after_previous)
child_allocation.x -= ARROW_SPACING + ARROW_SIZE;
if (notebook->has_after_next)
child_allocation.x -= ARROW_SPACING + ARROW_SIZE;
}
}
while (children)
{
if (children == last_child)
{
/* FIXME double check */
goto done;
}
page = children->data;
if (!showarrow && page->pack != GTK_PACK_START)
break;
children = gtk_notebook_search_page (notebook, children, STEP_NEXT,TRUE);
delta = 0;
if (n && (showarrow || page->expand || notebook->homogeneous))
{
new_fill = (tab_space * i++) / n;
delta = new_fill - old_fill;
old_fill = new_fill;
}
switch (tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
child_allocation.width = (page->requisition.width +
TAB_OVERLAP + delta);
if (is_rtl)
child_allocation.x -= child_allocation.width;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
child_allocation.height = (page->requisition.height +
TAB_OVERLAP + delta);
break;
}
gtk_notebook_page_allocate (notebook, page, &child_allocation);
switch (tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
if (!is_rtl)
child_allocation.x += child_allocation.width - TAB_OVERLAP;
else
child_allocation.x += TAB_OVERLAP;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
child_allocation.y += child_allocation.height - TAB_OVERLAP;
break;
}
if (page->tab_label)
gtk_widget_set_child_visible (page->tab_label, TRUE);
}
if (children)
{
children = notebook->children;
switch (tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
if (!is_rtl)
child_allocation.x = (allocation->x + allocation->width -
container->border_width);
else
child_allocation.x = memo_x;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
child_allocation.y = (allocation->y + allocation->height -
container->border_width);
break;
}
while (children != last_child)
{
page = children->data;
children = children->next;
if (page->pack != GTK_PACK_END || !GTK_WIDGET_VISIBLE (page->child))
continue;
delta = 0;
if (n && (page->expand || notebook->homogeneous))
{
new_fill = (tab_space * i++) / n;
delta = new_fill - old_fill;
old_fill = new_fill;
}
switch (tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
child_allocation.width = (page->requisition.width +
TAB_OVERLAP + delta);
if (!is_rtl)
child_allocation.x -= child_allocation.width;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
child_allocation.height = (page->requisition.height +
TAB_OVERLAP + delta);
child_allocation.y -= child_allocation.height;
break;
}
gtk_notebook_page_allocate (notebook, page, &child_allocation);
switch (tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
if (!is_rtl)
child_allocation.x += TAB_OVERLAP;
else
child_allocation.x += child_allocation.width - TAB_OVERLAP;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
child_allocation.y += TAB_OVERLAP;
break;
}
if (page->tab_label)
gtk_widget_set_child_visible (page->tab_label, TRUE);
}
}
done:
gtk_notebook_redraw_tabs (notebook);
}
static void
gtk_notebook_page_allocate (GtkNotebook *notebook,
GtkNotebookPage *page,
GtkAllocation *allocation)
{
GtkWidget *widget = GTK_WIDGET (notebook);
GtkAllocation child_allocation;
GtkRequisition tab_requisition;
gint xthickness;
gint ythickness;
gint padding;
gint focus_width;
gint tab_pos = get_effective_tab_pos (notebook);
gtk_widget_style_get (widget, "focus-line-width", &focus_width, NULL);
xthickness = widget->style->xthickness;
ythickness = widget->style->ythickness;
page->allocation = *allocation;
gtk_widget_get_child_requisition (page->tab_label, &tab_requisition);
if (notebook->cur_page != page)
{
switch (tab_pos)
{
case GTK_POS_TOP:
page->allocation.y += ythickness;
case GTK_POS_BOTTOM:
if (page->allocation.height > ythickness)
page->allocation.height -= ythickness;
break;
case GTK_POS_LEFT:
page->allocation.x += xthickness;
case GTK_POS_RIGHT:
if (page->allocation.width > xthickness)
page->allocation.width -= xthickness;
break;
}
}
switch (tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
padding = TAB_CURVATURE + focus_width + notebook->tab_hborder;
if (page->fill)
{
child_allocation.x = (xthickness + focus_width +
notebook->tab_hborder);
child_allocation.width = MAX (1, (page->allocation.width -
2 * child_allocation.x));
child_allocation.x += page->allocation.x;
}
else
{
child_allocation.x = (page->allocation.x +
(page->allocation.width -
tab_requisition.width) / 2);
child_allocation.width = tab_requisition.width;
}
child_allocation.y = (notebook->tab_vborder + focus_width +
page->allocation.y);
if (tab_pos == GTK_POS_TOP)
child_allocation.y += ythickness;
child_allocation.height = MAX (1, (((gint) page->allocation.height) - ythickness -
2 * (notebook->tab_vborder + focus_width)));
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
padding = TAB_CURVATURE + focus_width + notebook->tab_vborder;
if (page->fill)
{
child_allocation.y = ythickness + padding;
child_allocation.height = MAX (1, (page->allocation.height -
2 * child_allocation.y));
child_allocation.y += page->allocation.y;
}
else
{
child_allocation.y = (page->allocation.y + (page->allocation.height -
tab_requisition.height) / 2);
child_allocation.height = tab_requisition.height;
}
child_allocation.x = page->allocation.x + notebook->tab_hborder + focus_width;
if (tab_pos == GTK_POS_LEFT)
child_allocation.x += xthickness;
child_allocation.width = MAX (1, (((gint) page->allocation.width) - xthickness -
2 * (notebook->tab_hborder + focus_width)));
break;
}
if (page->tab_label)
gtk_widget_size_allocate (page->tab_label, &child_allocation);
}
static void
gtk_notebook_calc_tabs (GtkNotebook *notebook,
GList *start,
GList **end,
gint *tab_space,
guint direction)
{
GtkNotebookPage *page = NULL;
GList *children;
GList *last_list = NULL;
gboolean pack;
gint tab_pos = get_effective_tab_pos (notebook);
if (!start)
return;
children = start;
pack = GTK_NOTEBOOK_PAGE (start)->pack;
if (pack == GTK_PACK_END)
direction = (direction == STEP_PREV) ? STEP_NEXT : STEP_PREV;
while (1)
{
switch (tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
while (children)
{
page = children->data;
if (GTK_WIDGET_VISIBLE (page->child))
{
if (page->pack == pack)
{
*tab_space -= page->requisition.width;
if (*tab_space < 0 || children == *end)
{
if (*tab_space < 0)
{
*tab_space = - (*tab_space +
page->requisition.width);
*end = children;
}
return;
}
}
last_list = children;
}
if (direction == STEP_NEXT)
children = children->next;
else
children = children->prev;
}
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
while (children)
{
page = children->data;
if (GTK_WIDGET_VISIBLE (page->child))
{
if (page->pack == pack)
{
*tab_space -= page->requisition.height;
if (*tab_space < 0 || children == *end)
{
if (*tab_space < 0)
{
*tab_space = - (*tab_space +
page->requisition.height);
*end = children;
}
return;
}
}
last_list = children;
}
if (direction == STEP_NEXT)
children = children->next;
else
children = children->prev;
}
break;
}
if (direction == STEP_PREV)
return;
pack = (pack == GTK_PACK_END) ? GTK_PACK_START : GTK_PACK_END;
direction = STEP_PREV;
children = last_list;
}
}
static void
gtk_notebook_update_tab_states (GtkNotebook *notebook)
{
GList *list;
for (list = notebook->children; list != NULL; list = list->next)
{
GtkNotebookPage *page = list->data;
if (page->tab_label)
{
if (page == notebook->cur_page)
gtk_widget_set_state (page->tab_label, GTK_STATE_NORMAL);
else
gtk_widget_set_state (page->tab_label, GTK_STATE_ACTIVE);
}
}
}
/* Private GtkNotebook Page Switch Methods:
*
* gtk_notebook_real_switch_page
*/
static void
gtk_notebook_real_switch_page (GtkNotebook *notebook,
GtkNotebookPage *page,
guint page_num)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (page != NULL);
if (notebook->cur_page == page || !GTK_WIDGET_VISIBLE (page->child))
return;
if (notebook->cur_page)
gtk_widget_set_child_visible (notebook->cur_page->child, FALSE);
notebook->cur_page = page;
if (!notebook->focus_tab ||
notebook->focus_tab->data != (gpointer) notebook->cur_page)
notebook->focus_tab =
g_list_find (notebook->children, notebook->cur_page);
gtk_widget_set_child_visible (notebook->cur_page->child, TRUE);
/* If the focus was on the previous page, move it to the first
* element on the new page, if possible, or if not, to the
* notebook itself.
*/
if (notebook->child_has_focus)
{
if (notebook->cur_page->last_focus_child &&
gtk_widget_is_ancestor (notebook->cur_page->last_focus_child, notebook->cur_page->child))
gtk_widget_grab_focus (notebook->cur_page->last_focus_child);
else
if (!gtk_widget_child_focus (notebook->cur_page->child, GTK_DIR_TAB_FORWARD))
gtk_widget_grab_focus (GTK_WIDGET (notebook));
}
gtk_notebook_update_tab_states (notebook);
gtk_widget_queue_resize (GTK_WIDGET (notebook));
g_object_notify (G_OBJECT (notebook), "page");
}
/* Private GtkNotebook Page Switch Functions:
*
* gtk_notebook_switch_page
* gtk_notebook_page_select
* gtk_notebook_switch_focus_tab
* gtk_notebook_menu_switch_page
*/
static void
gtk_notebook_switch_page (GtkNotebook *notebook,
GtkNotebookPage *page,
gint page_num)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (page != NULL);
if (notebook->cur_page == page)
return;
if (page_num < 0)
page_num = g_list_index (notebook->children, page);
g_signal_emit (notebook,
notebook_signals[SWITCH_PAGE],
0,
page,
page_num);
}
static gint
gtk_notebook_page_select (GtkNotebook *notebook,
gboolean move_focus)
{
GtkNotebookPage *page;
GtkDirectionType dir = GTK_DIR_DOWN; /* Quiet GCC */
gint tab_pos = get_effective_tab_pos (notebook);
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE);
if (!notebook->focus_tab)
return FALSE;
page = notebook->focus_tab->data;
gtk_notebook_switch_page (notebook, page, -1);
if (move_focus)
{
switch (tab_pos)
{
case GTK_POS_TOP:
dir = GTK_DIR_DOWN;
break;
case GTK_POS_BOTTOM:
dir = GTK_DIR_UP;
break;
case GTK_POS_LEFT:
dir = GTK_DIR_RIGHT;
break;
case GTK_POS_RIGHT:
dir = GTK_DIR_LEFT;
break;
}
if (gtk_widget_child_focus (page->child, dir))
return TRUE;
}
return FALSE;
}
static void
gtk_notebook_switch_focus_tab (GtkNotebook *notebook,
GList *new_child)
{
GList *old_child;
GtkNotebookPage *old_page = NULL;
GtkNotebookPage *page;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->focus_tab == new_child)
return;
old_child = notebook->focus_tab;
notebook->focus_tab = new_child;
if (notebook->scrollable)
gtk_notebook_redraw_arrows (notebook);
if (!notebook->show_tabs || !notebook->focus_tab)
return;
if (old_child)
old_page = old_child->data;
page = notebook->focus_tab->data;
if (GTK_WIDGET_MAPPED (page->tab_label))
gtk_notebook_redraw_tabs (notebook);
else
gtk_notebook_pages_allocate (notebook);
gtk_notebook_switch_page (notebook, page,
g_list_index (notebook->children, page));
}
static void
gtk_notebook_menu_switch_page (GtkWidget *widget,
GtkNotebookPage *page)
{
GtkNotebook *notebook;
GList *children;
guint page_num;
g_return_if_fail (widget != NULL);
g_return_if_fail (page != NULL);
notebook = GTK_NOTEBOOK (gtk_menu_get_attach_widget
(GTK_MENU (widget->parent)));
if (notebook->cur_page == page)
return;
page_num = 0;
children = notebook->children;
while (children && children->data != page)
{
children = children->next;
page_num++;
}
g_signal_emit (notebook,
notebook_signals[SWITCH_PAGE],
0,
page,
page_num);
}
/* Private GtkNotebook Menu Functions:
*
* gtk_notebook_menu_item_create
* gtk_notebook_menu_label_unparent
* gtk_notebook_menu_detacher
*/
static void
gtk_notebook_menu_item_create (GtkNotebook *notebook,
GList *list)
{
GtkNotebookPage *page;
GtkWidget *menu_item;
page = list->data;
if (page->default_menu)
{
if (page->tab_label && GTK_IS_LABEL (page->tab_label))
page->menu_label = gtk_label_new (GTK_LABEL (page->tab_label)->label);
else
page->menu_label = gtk_label_new ("");
gtk_misc_set_alignment (GTK_MISC (page->menu_label), 0.0, 0.5);
}
gtk_widget_show (page->menu_label);
menu_item = gtk_menu_item_new ();
gtk_container_add (GTK_CONTAINER (menu_item), page->menu_label);
gtk_menu_shell_insert (GTK_MENU_SHELL (notebook->menu), menu_item,
gtk_notebook_real_page_position (notebook, list));
g_signal_connect (menu_item, "activate",
G_CALLBACK (gtk_notebook_menu_switch_page), page);
if (GTK_WIDGET_VISIBLE (page->child))
gtk_widget_show (menu_item);
}
static void
gtk_notebook_menu_label_unparent (GtkWidget *widget,
gpointer data)
{
gtk_widget_unparent (GTK_BIN(widget)->child);
GTK_BIN(widget)->child = NULL;
}
static void
gtk_notebook_menu_detacher (GtkWidget *widget,
GtkMenu *menu)
{
GtkNotebook *notebook;
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
notebook = GTK_NOTEBOOK (widget);
g_return_if_fail (notebook->menu == (GtkWidget*) menu);
notebook->menu = NULL;
}
/* Private GtkNotebook Setter Functions:
*
* gtk_notebook_set_homogeneous_tabs_internal
* gtk_notebook_set_tab_border_internal
* gtk_notebook_set_tab_hborder_internal
* gtk_notebook_set_tab_vborder_internal
*/
static void
gtk_notebook_set_homogeneous_tabs_internal (GtkNotebook *notebook,
gboolean homogeneous)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (homogeneous == notebook->homogeneous)
return;
notebook->homogeneous = homogeneous;
gtk_widget_queue_resize (GTK_WIDGET (notebook));
g_object_notify (G_OBJECT (notebook), "homogeneous");
}
static void
gtk_notebook_set_tab_border_internal (GtkNotebook *notebook,
guint border_width)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
notebook->tab_hborder = border_width;
notebook->tab_vborder = border_width;
if (GTK_WIDGET_VISIBLE (notebook) && notebook->show_tabs)
gtk_widget_queue_resize (GTK_WIDGET (notebook));
g_object_freeze_notify (G_OBJECT (notebook));
g_object_notify (G_OBJECT (notebook), "tab_hborder");
g_object_notify (G_OBJECT (notebook), "tab_vborder");
g_object_thaw_notify (G_OBJECT (notebook));
}
static void
gtk_notebook_set_tab_hborder_internal (GtkNotebook *notebook,
guint tab_hborder)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->tab_hborder == tab_hborder)
return;
notebook->tab_hborder = tab_hborder;
if (GTK_WIDGET_VISIBLE (notebook) && notebook->show_tabs)
gtk_widget_queue_resize (GTK_WIDGET (notebook));
g_object_notify (G_OBJECT (notebook), "tab_hborder");
}
static void
gtk_notebook_set_tab_vborder_internal (GtkNotebook *notebook,
guint tab_vborder)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->tab_vborder == tab_vborder)
return;
notebook->tab_vborder = tab_vborder;
if (GTK_WIDGET_VISIBLE (notebook) && notebook->show_tabs)
gtk_widget_queue_resize (GTK_WIDGET (notebook));
g_object_notify (G_OBJECT (notebook), "tab_vborder");
}
/* Public GtkNotebook Page Insert/Remove Methods :
*
* gtk_notebook_append_page
* gtk_notebook_append_page_menu
* gtk_notebook_prepend_page
* gtk_notebook_prepend_page_menu
* gtk_notebook_insert_page
* gtk_notebook_insert_page_menu
* gtk_notebook_remove_page
*/
/**
* gtk_notebook_append_page:
* @notebook: a #GtkNotebook
* @child: the #GtkWidget to use as the contents of the page.
* @tab_label: the #GtkWidget to be used as the label for the page,
* or %NULL to use the default label, 'page N'.
*
* Appends a page to @notebook.
*
* Return value: the index (starting from 0) of the appended
* page in the notebook, or -1 if function fails
**/
gint
gtk_notebook_append_page (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label)
{
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1);
g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
return gtk_notebook_insert_page_menu (notebook, child, tab_label, NULL, -1);
}
/**
* gtk_notebook_append_page_menu:
* @notebook: a #GtkNotebook
* @child: the #GtkWidget to use as the contents of the page.
* @tab_label: the #GtkWidget to be used as the label for the page,
* or %NULL to use the default label, 'page N'.
* @menu_label: the widget to use as a label for the page-switch
* menu, if that is enabled. If %NULL, and @tab_label
* is a #GtkLabel or %NULL, then the menu label will be
* a newly created label with the same text as @tab_label;
* If @tab_label is not a #GtkLabel, @menu_label must be
* specified if the page-switch menu is to be used.
*
* Appends a page to @notebook, specifying the widget to use as the
* label in the popup menu.
*
* Return value: the index (starting from 0) of the appended
* page in the notebook, or -1 if function fails
**/
gint
gtk_notebook_append_page_menu (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label,
GtkWidget *menu_label)
{
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1);
g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
g_return_val_if_fail (menu_label == NULL || GTK_IS_WIDGET (menu_label), -1);
return gtk_notebook_insert_page_menu (notebook, child, tab_label, menu_label, -1);
}
/**
* gtk_notebook_prepend_page:
* @notebook: a #GtkNotebook
* @child: the #GtkWidget to use as the contents of the page.
* @tab_label: the #GtkWidget to be used as the label for the page,
* or %NULL to use the default label, 'page N'.
*
* Prepends a page to @notebook.
*
* Return value: the index (starting from 0) of the prepended
* page in the notebook, or -1 if function fails
**/
gint
gtk_notebook_prepend_page (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label)
{
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1);
g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
return gtk_notebook_insert_page_menu (notebook, child, tab_label, NULL, 0);
}
/**
* gtk_notebook_prepend_page_menu:
* @notebook: a #GtkNotebook
* @child: the #GtkWidget to use as the contents of the page.
* @tab_label: the #GtkWidget to be used as the label for the page,
* or %NULL to use the default label, 'page N'.
* @menu_label: the widget to use as a label for the page-switch
* menu, if that is enabled. If %NULL, and @tab_label
* is a #GtkLabel or %NULL, then the menu label will be
* a newly created label with the same text as @tab_label;
* If @tab_label is not a #GtkLabel, @menu_label must be
* specified if the page-switch menu is to be used.
*
* Prepends a page to @notebook, specifying the widget to use as the
* label in the popup menu.
*
* Return value: the index (starting from 0) of the prepended
* page in the notebook, or -1 if function fails
**/
gint
gtk_notebook_prepend_page_menu (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label,
GtkWidget *menu_label)
{
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1);
g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
g_return_val_if_fail (menu_label == NULL || GTK_IS_WIDGET (menu_label), -1);
return gtk_notebook_insert_page_menu (notebook, child, tab_label, menu_label, 0);
}
/**
* gtk_notebook_insert_page:
* @notebook: a #GtkNotebook
* @child: the #GtkWidget to use as the contents of the page.
* @tab_label: the #GtkWidget to be used as the label for the page,
* or %NULL to use the default label, 'page N'.
* @position: the index (starting at 0) at which to insert the page,
* or -1 to append the page after all other pages.
*
* Insert a page into @notebook at the given position.
*
* Return value: the index (starting from 0) of the inserted
* page in the notebook, or -1 if function fails
**/
gint
gtk_notebook_insert_page (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label,
gint position)
{
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1);
g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
return gtk_notebook_insert_page_menu (notebook, child, tab_label, NULL, position);
}
static gint
gtk_notebook_page_compare_tab (gconstpointer a,
gconstpointer b)
{
return (((GtkNotebookPage *) a)->tab_label != b);
}
static gboolean
gtk_notebook_mnemonic_activate_switch_page (GtkWidget *child,
gboolean overload,
gpointer data)
{
GtkNotebook *notebook = GTK_NOTEBOOK (data);
GList *list;
list = g_list_find_custom (notebook->children, child,
gtk_notebook_page_compare_tab);
if (list)
{
GtkNotebookPage *page = list->data;
gtk_widget_grab_focus (GTK_WIDGET (notebook)); /* Do this first to avoid focusing new page */
gtk_notebook_switch_page (notebook, page, -1);
focus_tabs_in (notebook);
}
return TRUE;
}
/**
* gtk_notebook_insert_page_menu:
* @notebook: a #GtkNotebook
* @child: the #GtkWidget to use as the contents of the page.
* @tab_label: the #GtkWidget to be used as the label for the page,
* or %NULL to use the default label, 'page N'.
* @menu_label: the widget to use as a label for the page-switch
* menu, if that is enabled. If %NULL, and @tab_label
* is a #GtkLabel or %NULL, then the menu label will be
* a newly created label with the same text as @tab_label;
* If @tab_label is not a #GtkLabel, @menu_label must be
* specified if the page-switch menu is to be used.
* @position: the index (starting at 0) at which to insert the page,
* or -1 to append the page after all other pages.
*
* Insert a page into @notebook at the given position, specifying
* the widget to use as the label in the popup menu.
*
* Return value: the index (starting from 0) of the inserted
* page in the notebook, or -1 if function fails
**/
gint
gtk_notebook_insert_page_menu (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label,
GtkWidget *menu_label,
gint position)
{
GtkNotebookPage *page;
gint nchildren;
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1);
g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
g_return_val_if_fail (menu_label == NULL || GTK_IS_WIDGET (menu_label), -1);
gtk_widget_freeze_child_notify (child);
page = g_new (GtkNotebookPage, 1);
page->child = child;
page->last_focus_child = NULL;
page->requisition.width = 0;
page->requisition.height = 0;
page->allocation.x = 0;
page->allocation.y = 0;
page->allocation.width = 0;
page->allocation.height = 0;
page->default_menu = FALSE;
page->default_tab = FALSE;
page->mnemonic_activate_signal = 0;
nchildren = g_list_length (notebook->children);
if ((position < 0) || (position > nchildren))
position = nchildren;
notebook->children = g_list_insert (notebook->children, page, position);
if (!tab_label)
{
page->default_tab = TRUE;
if (notebook->show_tabs)
tab_label = gtk_label_new ("");
}
page->tab_label = tab_label;
page->menu_label = menu_label;
page->expand = FALSE;
page->fill = TRUE;
page->pack = GTK_PACK_START;
if (!menu_label)
page->default_menu = TRUE;
else
{
g_object_ref (page->menu_label);
gtk_object_sink (GTK_OBJECT (page->menu_label));
}
if (notebook->menu)
gtk_notebook_menu_item_create (notebook,
g_list_find (notebook->children, page));
gtk_widget_set_parent (child, GTK_WIDGET (notebook));
if (tab_label)
gtk_widget_set_parent (tab_label, GTK_WIDGET (notebook));
gtk_notebook_update_labels (notebook);
if (!notebook->first_tab)
notebook->first_tab = notebook->children;
if (!notebook->cur_page)
gtk_widget_set_child_visible (child, TRUE);
else
gtk_widget_set_child_visible (child, FALSE);
if (tab_label)
{
if (notebook->show_tabs && GTK_WIDGET_VISIBLE (child))
gtk_widget_show (tab_label);
else
gtk_widget_hide (tab_label);
}
if (!notebook->cur_page)
{
gtk_notebook_switch_page (notebook, page, 0);
gtk_notebook_switch_focus_tab (notebook, NULL);
}
gtk_notebook_update_tab_states (notebook);
if (tab_label)
page->mnemonic_activate_signal =
g_signal_connect (tab_label,
"mnemonic_activate",
G_CALLBACK (gtk_notebook_mnemonic_activate_switch_page),
notebook);
gtk_widget_child_notify (child, "tab_expand");
gtk_widget_child_notify (child, "tab_fill");
gtk_widget_child_notify (child, "tab_pack");
gtk_widget_child_notify (child, "tab_label");
gtk_widget_child_notify (child, "menu_label");
gtk_widget_child_notify (child, "position");
gtk_widget_thaw_child_notify (child);
return position;
}
/**
* gtk_notebook_remove_page:
* @notebook: a #GtkNotebook.
* @page_num: the index of a notebook page, starting
* from 0. If -1, the last page will
* be removed.
*
* Removes a page from the notebook given its index
* in the notebook.
**/
void
gtk_notebook_remove_page (GtkNotebook *notebook,
gint page_num)
{
GList *list;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (page_num >= 0)
{
list = g_list_nth (notebook->children, page_num);
if (list)
gtk_notebook_real_remove (notebook, list, FALSE);
}
else
{
list = g_list_last (notebook->children);
if (list)
gtk_notebook_real_remove (notebook, list, FALSE);
}
}
/* Public GtkNotebook Page Switch Methods :
* gtk_notebook_get_current_page
* gtk_notebook_page_num
* gtk_notebook_set_current_page
* gtk_notebook_next_page
* gtk_notebook_prev_page
*/
/**
* gtk_notebook_get_current_page:
* @notebook: a #GtkNotebook
*
* Returns the page number of the current page.
*
* Return value: the index (starting from 0) of the current
* page in the notebook. If the notebook has no pages, then
* -1 will be returned.
**/
gint
gtk_notebook_get_current_page (GtkNotebook *notebook)
{
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1);
if (!notebook->cur_page)
return -1;
return g_list_index (notebook->children, notebook->cur_page);
}
/**
* gtk_notebook_get_nth_page:
* @notebook: a #GtkNotebook
* @page_num: the index of a page in the noteobok, or -1
* to get the last page.
*
* Returns the child widget contained in page number @page_num.
*
* Return value: the child widget, or %NULL if @page_num is
* out of bounds.
**/
GtkWidget*
gtk_notebook_get_nth_page (GtkNotebook *notebook,
gint page_num)
{
GtkNotebookPage *page;
GList *list;
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL);
if (page_num >= 0)
list = g_list_nth (notebook->children, page_num);
else
list = g_list_last (notebook->children);
if (list)
{
page = list->data;
return page->child;
}
return NULL;
}
/**
* gtk_notebook_get_n_pages:
* @notebook: a #GtkNotebook
*
* Gets the number of pages in a notebook.
*
* Return value: the number of pages in the notebook.
*
* Since: 2.2
**/
gint
gtk_notebook_get_n_pages (GtkNotebook *notebook)
{
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), 0);
return g_list_length (notebook->children);
}
/**
* gtk_notebook_page_num:
* @notebook: a #GtkNotebook
* @child: a #GtkWidget
*
* Finds the index of the page which contains the given child
* widget.
*
* Return value: the index of the page containing @child, or
* -1 if @child is not in the notebook.
**/
gint
gtk_notebook_page_num (GtkNotebook *notebook,
GtkWidget *child)
{
GList *children;
gint num;
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1);
num = 0;
children = notebook->children;
while (children)
{
GtkNotebookPage *page = children->data;
if (page->child == child)
return num;
children = children->next;
num++;
}
return -1;
}
/**
* gtk_notebook_set_current_page:
* @notebook: a #GtkNotebook
* @page_num: index of the page to switch to, starting from 0.
* If negative, the last page will be used. If greater
* than the number of pages in the notebook, nothing
* will be done.
*
* Switches to the page number @page_num.
**/
void
gtk_notebook_set_current_page (GtkNotebook *notebook,
gint page_num)
{
GList *list;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (page_num >= 0)
list = g_list_nth (notebook->children, page_num);
else
list = g_list_last (notebook->children);
page_num = g_list_index (notebook->children, list);
if (list)
gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (list), page_num);
}
/**
* gtk_notebook_next_page:
* @notebook: a #GtkNotebook
*
* Switches to the next page. Nothing happens if the current page is
* the last page.
**/
void
gtk_notebook_next_page (GtkNotebook *notebook)
{
GList *list;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
list = g_list_find (notebook->children, notebook->cur_page);
if (!list)
return;
list = gtk_notebook_search_page (notebook, list, STEP_NEXT, TRUE);
if (!list)
return;
gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (list), -1);
}
/**
* gtk_notebook_prev_page:
* @notebook: a #GtkNotebook
*
* Switches to the previous page. Nothing happens if the current page
* is the first page.
**/
void
gtk_notebook_prev_page (GtkNotebook *notebook)
{
GList *list;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
list = g_list_find (notebook->children, notebook->cur_page);
if (!list)
return;
list = gtk_notebook_search_page (notebook, list, STEP_PREV, TRUE);
if (!list)
return;
gtk_notebook_switch_page (notebook, GTK_NOTEBOOK_PAGE (list), -1);
}
/* Public GtkNotebook/Tab Style Functions
*
* gtk_notebook_set_show_border
* gtk_notebook_set_show_tabs
* gtk_notebook_set_tab_pos
* gtk_notebook_set_homogeneous_tabs
* gtk_notebook_set_tab_border
* gtk_notebook_set_tab_hborder
* gtk_notebook_set_tab_vborder
* gtk_notebook_set_scrollable
*/
/**
* gtk_notebook_set_show_border:
* @notebook: a #GtkNotebook
* @show_border: %TRUE if a bevel should be drawn around the notebook.
*
* Sets whether a bevel will be drawn around the notebook pages.
* This only has a visual effect when the tabs are not shown.
* See gtk_notebook_set_show_tabs().
**/
void
gtk_notebook_set_show_border (GtkNotebook *notebook,
gboolean show_border)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->show_border != show_border)
{
notebook->show_border = show_border;
if (GTK_WIDGET_VISIBLE (notebook))
gtk_widget_queue_resize (GTK_WIDGET (notebook));
g_object_notify (G_OBJECT (notebook), "show_border");
}
}
/**
* gtk_notebook_get_show_border:
* @notebook: a #GtkNotebook
*
* Returns whether a bevel will be drawn around the notebook pages. See
* gtk_notebook_set_show_border().
*
* Return value: %TRUE if the bevel is drawn
**/
gboolean
gtk_notebook_get_show_border (GtkNotebook *notebook)
{
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE);
return notebook->show_border;
}
/**
* gtk_notebook_set_show_tabs:
* @notebook: a #GtkNotebook
* @show_tabs: %TRUE if the tabs should be shown.
*
* Sets whether to show the tabs for the notebook or not.
**/
void
gtk_notebook_set_show_tabs (GtkNotebook *notebook,
gboolean show_tabs)
{
GtkNotebookPage *page;
GList *children;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
show_tabs = show_tabs != FALSE;
if (notebook->show_tabs == show_tabs)
return;
notebook->show_tabs = show_tabs;
children = notebook->children;
if (!show_tabs)
{
GTK_WIDGET_UNSET_FLAGS (notebook, GTK_CAN_FOCUS);
while (children)
{
page = children->data;
children = children->next;
if (page->default_tab)
{
gtk_widget_destroy (page->tab_label);
page->tab_label = NULL;
}
else
gtk_widget_hide (page->tab_label);
}
}
else
{
GTK_WIDGET_SET_FLAGS (notebook, GTK_CAN_FOCUS);
gtk_notebook_update_labels (notebook);
}
gtk_widget_queue_resize (GTK_WIDGET (notebook));
g_object_notify (G_OBJECT (notebook), "show_tabs");
}
/**
* gtk_notebook_get_show_tabs:
* @notebook: a #GtkNotebook
*
* Returns whether the tabs of the notebook are shown. See
* gtk_notebook_set_show_tabs().
*
* Return value: %TRUE if the tabs are shown
**/
gboolean
gtk_notebook_get_show_tabs (GtkNotebook *notebook)
{
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE);
return notebook->show_tabs;
}
/**
* gtk_notebook_set_tab_pos:
* @notebook: a #GtkNotebook.
* @pos: the edge to draw the tabs at.
*
* Sets the edge at which the tabs for switching pages in the
* notebook are drawn.
**/
void
gtk_notebook_set_tab_pos (GtkNotebook *notebook,
GtkPositionType pos)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->tab_pos != pos)
{
notebook->tab_pos = pos;
if (GTK_WIDGET_VISIBLE (notebook))
gtk_widget_queue_resize (GTK_WIDGET (notebook));
}
g_object_notify (G_OBJECT (notebook), "tab_pos");
}
/**
* gtk_notebook_get_tab_pos:
* @notebook: a #GtkNotebook
*
* Gets the edge at which the tabs for switching pages in the
* notebook are drawn.
*
* Return value: the edge at which the tabs are drawn
**/
GtkPositionType
gtk_notebook_get_tab_pos (GtkNotebook *notebook)
{
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), GTK_POS_TOP);
return notebook->tab_pos;
}
/**
* gtk_notebook_set_homogeneous_tabs:
* @notebook: a #GtkNotebook
* @homogeneous: %TRUE if all tabs should be the same size.
*
* Sets whether the tabs must have all the same size or not.
**/
void
gtk_notebook_set_homogeneous_tabs (GtkNotebook *notebook,
gboolean homogeneous)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
gtk_notebook_set_homogeneous_tabs_internal (notebook, homogeneous);
}
/**
* gtk_notebook_set_tab_border:
* @notebook: a #GtkNotebook
* @border_width: width of the border around the tab labels.
*
* Sets the width the border around the tab labels
* in a notebook. This is equivalent to calling
* gtk_notebook_set_tab_hborder (@notebook, @border_width) followed
* by gtk_notebook_set_tab_vborder (@notebook, @border_width).
**/
void
gtk_notebook_set_tab_border (GtkNotebook *notebook,
guint border_width)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
gtk_notebook_set_tab_border_internal (notebook, border_width);
}
/**
* gtk_notebook_set_tab_hborder:
* @notebook: a #GtkNotebook
* @tab_hborder: width of the horizontal border of tab labels.
*
* Sets the width of the horizontal border of tab labels.
**/
void
gtk_notebook_set_tab_hborder (GtkNotebook *notebook,
guint tab_hborder)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
gtk_notebook_set_tab_hborder_internal (notebook, tab_hborder);
}
/**
* gtk_notebook_set_tab_vborder:
* @notebook: a #GtkNotebook
* @tab_vborder: width of the vertical border of tab labels.
*
* Sets the width of the vertical border of tab labels.
**/
void
gtk_notebook_set_tab_vborder (GtkNotebook *notebook,
guint tab_vborder)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
gtk_notebook_set_tab_vborder_internal (notebook, tab_vborder);
}
/**
* gtk_notebook_set_scrollable:
* @notebook: a #GtkNotebook
* @scrollable: %TRUE if scroll arrows should be added
*
* Sets whether the tab label area will have arrows for scrolling if
* there are too many tabs to fit in the area.
**/
void
gtk_notebook_set_scrollable (GtkNotebook *notebook,
gboolean scrollable)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
scrollable = (scrollable != FALSE);
if (scrollable != notebook->scrollable)
{
notebook->scrollable = scrollable;
if (GTK_WIDGET_VISIBLE (notebook))
gtk_widget_queue_resize (GTK_WIDGET (notebook));
g_object_notify (G_OBJECT (notebook), "scrollable");
}
}
/**
* gtk_notebook_get_scrollable:
* @notebook: a #GtkNotebook
*
* Returns whether the tab label area has arrows for scrolling. See
* gtk_notebook_set_scrollable().
*
* Return value: %TRUE if arrows for scrolling are present
**/
gboolean
gtk_notebook_get_scrollable (GtkNotebook *notebook)
{
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE);
return notebook->scrollable;
}
/* Public GtkNotebook Popup Menu Methods:
*
* gtk_notebook_popup_enable
* gtk_notebook_popup_disable
*/
/**
* gtk_notebook_popup_enable:
* @notebook: a #GtkNotebook
*
* Enables the popup menu: if the user clicks with the right mouse button on
* the bookmarks, a menu with all the pages will be popped up.
**/
void
gtk_notebook_popup_enable (GtkNotebook *notebook)
{
GList *list;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->menu)
return;
notebook->menu = gtk_menu_new ();
for (list = gtk_notebook_search_page (notebook, NULL, STEP_NEXT, FALSE);
list;
list = gtk_notebook_search_page (notebook, list, STEP_NEXT, FALSE))
gtk_notebook_menu_item_create (notebook, list);
gtk_notebook_update_labels (notebook);
gtk_menu_attach_to_widget (GTK_MENU (notebook->menu),
GTK_WIDGET (notebook),
gtk_notebook_menu_detacher);
g_object_notify (G_OBJECT (notebook), "enable_popup");
}
/**
* gtk_notebook_popup_disable:
* @notebook: a #GtkNotebook
*
* Disables the popup menu.
**/
void
gtk_notebook_popup_disable (GtkNotebook *notebook)
{
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (!notebook->menu)
return;
gtk_container_foreach (GTK_CONTAINER (notebook->menu),
(GtkCallback) gtk_notebook_menu_label_unparent, NULL);
gtk_widget_destroy (notebook->menu);
g_object_notify (G_OBJECT (notebook), "enable_popup");
}
/* Public GtkNotebook Page Properties Functions:
*
* gtk_notebook_get_tab_label
* gtk_notebook_set_tab_label
* gtk_notebook_set_tab_label_text
* gtk_notebook_get_menu_label
* gtk_notebook_set_menu_label
* gtk_notebook_set_menu_label_text
* gtk_notebook_set_tab_label_packing
* gtk_notebook_query_tab_label_packing
*/
/**
* gtk_notebook_get_tab_label:
* @notebook: a #GtkNotebook
* @child: the page
*
* Returns the tab label widget for the page @child. %NULL is returned
* if @child is not in @notebook or if no tab label has specifically
* been set for @child.
*
* Return value: the tab label
**/
GtkWidget *
gtk_notebook_get_tab_label (GtkNotebook *notebook,
GtkWidget *child)
{
GList *list;
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
list = CHECK_FIND_CHILD (notebook, child);
if (!list)
return NULL;
if (GTK_NOTEBOOK_PAGE (list)->default_tab)
return NULL;
return GTK_NOTEBOOK_PAGE (list)->tab_label;
}
/**
* gtk_notebook_set_tab_label:
* @notebook: a #GtkNotebook
* @child: the page
* @tab_label: the tab label widget to use, or %NULL for default tab
* label.
*
* Changes the tab label for @child. If %NULL is specified
* for @tab_label, then the page will have the label 'page N'.
**/
void
gtk_notebook_set_tab_label (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label)
{
GtkNotebookPage *page;
GList *list;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (GTK_IS_WIDGET (child));
list = CHECK_FIND_CHILD (notebook, child);
if (!list)
return;
/* a NULL pointer indicates a default_tab setting, otherwise
* we need to set the associated label
*/
page = list->data;
if (page->tab_label == tab_label)
return;
gtk_notebook_remove_tab_label (notebook, page);
if (tab_label)
{
page->default_tab = FALSE;
page->tab_label = tab_label;
gtk_widget_set_parent (page->tab_label, GTK_WIDGET (notebook));
}
else
{
page->default_tab = TRUE;
page->tab_label = NULL;
if (notebook->show_tabs)
{
gchar string[32];
g_snprintf (string, sizeof(string), _("Page %u"),
gtk_notebook_real_page_position (notebook, list));
page->tab_label = gtk_label_new (string);
gtk_widget_set_parent (page->tab_label, GTK_WIDGET (notebook));
}
}
if (page->tab_label)
page->mnemonic_activate_signal =
g_signal_connect (page->tab_label,
"mnemonic_activate",
G_CALLBACK (gtk_notebook_mnemonic_activate_switch_page),
notebook);
if (notebook->show_tabs && GTK_WIDGET_VISIBLE (child))
{
gtk_widget_show (page->tab_label);
gtk_widget_queue_resize (GTK_WIDGET (notebook));
}
gtk_notebook_update_tab_states (notebook);
gtk_widget_child_notify (child, "tab_label");
}
/**
* gtk_notebook_set_tab_label_text:
* @notebook: a #GtkNotebook
* @child: the page
* @tab_text: the label text
*
* Creates a new label and sets it as the tab label for the page
* containing @child.
**/
void
gtk_notebook_set_tab_label_text (GtkNotebook *notebook,
GtkWidget *child,
const gchar *tab_text)
{
GtkWidget *tab_label = NULL;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (tab_text)
tab_label = gtk_label_new (tab_text);
gtk_notebook_set_tab_label (notebook, child, tab_label);
gtk_widget_child_notify (child, "tab_label");
}
/**
* gtk_notebook_get_tab_label_text:
* @notebook: a #GtkNotebook
* @child: a widget contained in a page of @notebook
*
* Retrieves the text of the tab label for the page containing
* @child.
*
* Returns value: the text of the tab label, or %NULL if the
* tab label widget is not a #GtkLabel. The
* string is owned by the widget and must not
* be freed.
**/
G_CONST_RETURN gchar *
gtk_notebook_get_tab_label_text (GtkNotebook *notebook,
GtkWidget *child)
{
GtkWidget *tab_label;
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
tab_label = gtk_notebook_get_tab_label (notebook, child);
if (tab_label && GTK_IS_LABEL (tab_label))
return gtk_label_get_text (GTK_LABEL (tab_label));
else
return NULL;
}
/**
* gtk_notebook_get_menu_label:
* @notebook: a #GtkNotebook
* @child: a widget contained in a page of @notebook
*
* Retrieves the menu label widget of the page containing @child.
*
* Return value: the menu label, or %NULL if the
* notebook page does not have a menu label other
* than the default (the tab label).
**/
GtkWidget*
gtk_notebook_get_menu_label (GtkNotebook *notebook,
GtkWidget *child)
{
GList *list;
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
list = CHECK_FIND_CHILD (notebook, child);
if (!list)
return NULL;
if (GTK_NOTEBOOK_PAGE (list)->default_menu)
return NULL;
return GTK_NOTEBOOK_PAGE (list)->menu_label;
}
/**
* gtk_notebook_set_menu_label:
* @notebook: a #GtkNotebook
* @child: the child widget
* @menu_label: the menu label, or NULL for default
*
* Changes the menu label for the page containing @child.
**/
void
gtk_notebook_set_menu_label (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *menu_label)
{
GtkNotebookPage *page;
GList *list;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (GTK_IS_WIDGET (child));
list = CHECK_FIND_CHILD (notebook, child);
if (!list)
return;
page = list->data;
if (page->menu_label)
{
if (notebook->menu)
gtk_container_remove (GTK_CONTAINER (notebook->menu),
page->menu_label->parent);
if (!page->default_menu)
g_object_unref (page->menu_label);
}
if (menu_label)
{
page->menu_label = menu_label;
g_object_ref (page->menu_label);
gtk_object_sink (GTK_OBJECT(page->menu_label));
page->default_menu = FALSE;
}
else
page->default_menu = TRUE;
if (notebook->menu)
gtk_notebook_menu_item_create (notebook, list);
gtk_widget_child_notify (child, "menu_label");
}
/**
* gtk_notebook_set_menu_label_text:
* @notebook: a #GtkNotebook
* @child: the child widget
* @menu_text: the label text
*
* Creates a new label and sets it as the menu label of @child.
**/
void
gtk_notebook_set_menu_label_text (GtkNotebook *notebook,
GtkWidget *child,
const gchar *menu_text)
{
GtkWidget *menu_label = NULL;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (menu_text)
menu_label = gtk_label_new (menu_text);
gtk_notebook_set_menu_label (notebook, child, menu_label);
gtk_widget_child_notify (child, "menu_label");
}
/**
* gtk_notebook_get_menu_label_text:
* @notebook: a #GtkNotebook
* @child: the child widget of a page of the notebook.
*
* Retrieves the text of the menu label for the page containing
* @child.
*
* Returns value: the text of the tab label, or %NULL if the
* widget does not have a menu label other than
* the default menu label, or the menu label widget
* is not a #GtkLabel. The string is owned by
* the widget and must not be freed.
**/
G_CONST_RETURN gchar *
gtk_notebook_get_menu_label_text (GtkNotebook *notebook,
GtkWidget *child)
{
GtkWidget *menu_label;
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
menu_label = gtk_notebook_get_menu_label (notebook, child);
if (menu_label && GTK_IS_LABEL (menu_label))
return gtk_label_get_text (GTK_LABEL (menu_label));
else
return NULL;
}
/* Helper function called when pages are reordered
*/
static void
gtk_notebook_child_reordered (GtkNotebook *notebook,
GtkNotebookPage *page)
{
if (notebook->menu)
{
GtkWidget *menu_item;
menu_item = page->menu_label->parent;
gtk_container_remove (GTK_CONTAINER (menu_item), page->menu_label);
gtk_container_remove (GTK_CONTAINER (notebook->menu), menu_item);
gtk_notebook_menu_item_create (notebook, g_list_find (notebook->children, page));
}
gtk_notebook_update_tab_states (notebook);
gtk_notebook_update_labels (notebook);
}
/**
* gtk_notebook_set_tab_label_packing:
* @notebook: a #GtkNotebook
* @child: the child widget
* @expand: whether to expand the bookmark or not
* @fill: whether the bookmark should fill the allocated area or not
* @pack_type: the position of the bookmark
*
* Sets the packing parameters for the tab label of the page
* containing @child. See gtk_box_pack_start() for the exact meaning
* of the parameters.
**/
void
gtk_notebook_set_tab_label_packing (GtkNotebook *notebook,
GtkWidget *child,
gboolean expand,
gboolean fill,
GtkPackType pack_type)
{
GtkNotebookPage *page;
GList *list;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (GTK_IS_WIDGET (child));
list = CHECK_FIND_CHILD (notebook, child);
if (!list)
return;
page = list->data;
expand = expand != FALSE;
fill = fill != FALSE;
if (page->pack == pack_type && page->expand == expand && page->fill == fill)
return;
gtk_widget_freeze_child_notify (child);
page->expand = expand;
gtk_widget_child_notify (child, "tab_expand");
page->fill = fill;
gtk_widget_child_notify (child, "tab_fill");
if (page->pack != pack_type)
{
page->pack = pack_type;
gtk_notebook_child_reordered (notebook, page);
}
gtk_widget_child_notify (child, "tab_pack");
gtk_widget_child_notify (child, "position");
if (notebook->show_tabs)
gtk_notebook_pages_allocate (notebook);
gtk_widget_thaw_child_notify (child);
}
/**
* gtk_notebook_query_tab_label_packing:
* @notebook: a #GtkNotebook
* @child: the page
* @expand: location to store the expand value (or NULL)
* @fill: location to store the fill value (or NULL)
* @pack_type: location to store the pack_type (or NULL)
*
* Query the packing attributes for the tab label of the page
* containing @child.
**/
void
gtk_notebook_query_tab_label_packing (GtkNotebook *notebook,
GtkWidget *child,
gboolean *expand,
gboolean *fill,
GtkPackType *pack_type)
{
GList *list;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (GTK_IS_WIDGET (child));
list = CHECK_FIND_CHILD (notebook, child);
if (!list)
return;
if (expand)
*expand = GTK_NOTEBOOK_PAGE (list)->expand;
if (fill)
*fill = GTK_NOTEBOOK_PAGE (list)->fill;
if (pack_type)
*pack_type = GTK_NOTEBOOK_PAGE (list)->pack;
}
/**
* gtk_notebook_reorder_child:
* @notebook: a #GtkNotebook
* @child: the child to move
* @position: the new position, or -1 to move to the end
*
* Reorders the page containing @child, so that it appears in position
* @position. If @position is greater than or equal to the number of
* children in the list or negative, @child will be moved to the end
* of the list.
**/
void
gtk_notebook_reorder_child (GtkNotebook *notebook,
GtkWidget *child,
gint position)
{
GList *list, *new_list;
GtkNotebookPage *page;
gint old_pos;
gint max_pos;
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (GTK_IS_WIDGET (child));
list = CHECK_FIND_CHILD (notebook, child);
if (!list)
return;
max_pos = g_list_length (notebook->children) - 1;
if (position < 0 || position > max_pos)
position = max_pos;
old_pos = g_list_position (notebook->children, list);
if (old_pos == position)
return;
page = list->data;
notebook->children = g_list_delete_link (notebook->children, list);
notebook->children = g_list_insert (notebook->children, page, position);
new_list = g_list_nth (notebook->children, position);
/* Fix up GList references in GtkNotebook structure */
if (notebook->first_tab == list)
notebook->first_tab = new_list;
if (notebook->focus_tab == list)
notebook->focus_tab = new_list;
gtk_widget_freeze_child_notify (child);
/* Move around the menu items if necessary */
gtk_notebook_child_reordered (notebook, page);
gtk_widget_child_notify (child, "tab_pack");
gtk_widget_child_notify (child, "position");
if (notebook->show_tabs)
gtk_notebook_pages_allocate (notebook);
gtk_widget_thaw_child_notify (child);
}
#define __GTK_NOTEBOOK_C__
#include "gtkaliasdef.c"
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