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gtk2/gtk/gtknotebook.c
Tim Janik f83d57e91b yeppers, accelerator changes to fix the gimp. commit message dedicated to 
yeppers, accelerator changes to fix the gimp.
commit message dedicated to sopwith ;)

Thu Jun 18 03:30:06 1998  Tim Janik  <timj@gtk.org>

        * gtk/gtkaccellabel.h:
        * gtk/gtkaccellabel.c: new function gtk_accel_label_accelerator_width to
        request the size of the accelerator portion of an accel label.
        (gtk_accel_label_size_request): don't request for the accelerators size.
        (gtk_accel_label_expose_event): only draw the accelerator if we got
        enough extra space.

        * gtk/gtkmenuitem.c (gtk_menu_item_size_request): request accelerator
        width from children.

        * gtk/gtkmenu.c (gtk_menu_key_press): when adding an accelerator to an
        object (after removal has been requested) check if there is still an
        accelerator remaining to avoid adding two accelerators on an object.
        this can happen for locked accelerators (or accelerator-frozen widgets).
        (gtk_menu_size_request): feature childrens accelerator width in size
        requests.

        * gtk/gtknotebook.c (gtk_notebook_menu_item_create): use
        gtk_widget_freeze_accelerators() for dynamically created menu items.

        * gtk/gtksignal.h:
        * gtk/gtksignal.c: new function gtk_signal_handler_pending_by_func()
        which will return a handler_id > 0 if the specified function is pending
        for `signal_id'.

        * gtk/gtkwidget.h:
        * gtk/gtkwidget.c: remove gtk_widget_stop_accelerator, which was just
        a signal handler function to stop accelerator addition.
        added gtk_widget_freeze_accelerators and gtk_widget_thaw_accelerators
        which will prevent (undo) any accelerators from being added to or
        removed from a widget.
1998-06-18 03:22:09 +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 Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
#include "gtknotebook.h"
#include "gtksignal.h"
#include "gtkmain.h"
#include "gtkmenu.h"
#include "gtkmenuitem.h"
#include "gtklabel.h"
#include <gdk/gdkkeysyms.h>
#include <stdio.h>
#define TAB_OVERLAP 2
#define TAB_CURVATURE 1
#define ARROW_SIZE 11
#define ARROW_SPACING 3
#define NOTEBOOK_INIT_SCROLL_DELAY (200)
#define NOTEBOOK_SCROLL_DELAY (100)
enum {
SWITCH_PAGE,
LAST_SIGNAL
};
enum {
STEP_PREV,
STEP_NEXT
};
typedef void (*GtkNotebookSignal) (GtkObject *object,
GtkNotebookPage *arg1,
gint arg2,
gpointer data);
static void gtk_notebook_class_init (GtkNotebookClass *klass);
static void gtk_notebook_init (GtkNotebook *notebook);
static void gtk_notebook_destroy (GtkObject *object);
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_panel_realize (GtkNotebook *notebook);
static void gtk_notebook_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_notebook_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_notebook_paint (GtkWidget *widget,
GdkRectangle *area);
static void gtk_notebook_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_notebook_expose (GtkWidget *widget,
GdkEventExpose *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_key_press (GtkWidget *widget,
GdkEventKey *event);
static void gtk_notebook_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_notebook_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_notebook_real_remove (GtkNotebook *notebook,
GList *list,
gint page_num);
static void gtk_notebook_foreach (GtkContainer *container,
GtkCallback callback,
gpointer callback_data);
static void gtk_notebook_switch_page (GtkNotebook *notebook,
GtkNotebookPage *page,
gint page_num);
static void gtk_notebook_draw_tab (GtkNotebook *notebook,
GtkNotebookPage *page,
GdkRectangle *area);
static void gtk_notebook_set_focus_child (GtkContainer *container,
GtkWidget *child);
static gint gtk_notebook_focus_in (GtkWidget *widget,
GdkEventFocus *event);
static gint gtk_notebook_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static void gtk_notebook_draw_focus (GtkWidget *widget);
static void gtk_notebook_focus_changed (GtkNotebook *notebook,
GtkNotebookPage *old_page);
static void gtk_notebook_pages_allocate (GtkNotebook *notebook,
GtkAllocation *allocation);
static void gtk_notebook_page_allocate (GtkNotebook *notebook,
GtkNotebookPage *page,
GtkAllocation *allocation);
static void gtk_notebook_draw_arrow (GtkNotebook *notebook,
guint arrow);
static gint gtk_notebook_timer (GtkNotebook *notebook);
static gint gtk_notebook_focus (GtkContainer *container,
GtkDirectionType direction);
static gint gtk_notebook_page_select (GtkNotebook *notebook);
static void gtk_notebook_calc_tabs (GtkNotebook *notebook,
GList *start,
GList **end,
gint *tab_space,
guint direction);
static void gtk_notebook_expose_tabs (GtkNotebook *notebook);
static void gtk_notebook_switch_focus_tab (GtkNotebook *notebook,
GList *new_child);
static void gtk_real_notebook_switch_page (GtkNotebook *notebook,
GtkNotebookPage *page,
gint page_num);
static void gtk_notebook_marshal_signal (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args);
static void gtk_notebook_menu_switch_page (GtkWidget *widget,
GtkNotebookPage *page);
static void gtk_notebook_update_labels (GtkNotebook *notebook,
GList *list,
gint page_num);
static void gtk_notebook_menu_detacher (GtkWidget *widget,
GtkMenu *menu);
static void gtk_notebook_menu_label_unparent (GtkWidget *widget,
gpointer data);
static void gtk_notebook_menu_item_create (GtkNotebook *notebook,
GtkNotebookPage *page,
gint position);
static GtkType gtk_notebook_child_type (GtkContainer *container);
static GtkContainerClass *parent_class = NULL;
static guint notebook_signals[LAST_SIGNAL] = { 0 };
GtkType
gtk_notebook_get_type (void)
{
static GtkType notebook_type = 0;
if (!notebook_type)
{
GtkTypeInfo notebook_info =
{
"GtkNotebook",
sizeof (GtkNotebook),
sizeof (GtkNotebookClass),
(GtkClassInitFunc) gtk_notebook_class_init,
(GtkObjectInitFunc) gtk_notebook_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL,
};
notebook_type = gtk_type_unique (gtk_container_get_type (), &notebook_info);
}
return notebook_type;
}
static void
gtk_notebook_class_init (GtkNotebookClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
container_class = (GtkContainerClass*) class;
parent_class = gtk_type_class (gtk_container_get_type ());
notebook_signals[SWITCH_PAGE] =
gtk_signal_new ("switch_page",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkNotebookClass, switch_page),
gtk_notebook_marshal_signal,
GTK_TYPE_NONE, 2,
GTK_TYPE_POINTER,
GTK_TYPE_INT);
gtk_object_class_add_signals (object_class, notebook_signals, LAST_SIGNAL);
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->size_request = gtk_notebook_size_request;
widget_class->size_allocate = gtk_notebook_size_allocate;
widget_class->draw = gtk_notebook_draw;
widget_class->expose_event = gtk_notebook_expose;
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->key_press_event = gtk_notebook_key_press;
widget_class->focus_in_event = gtk_notebook_focus_in;
widget_class->focus_out_event = gtk_notebook_focus_out;
widget_class->draw_focus = gtk_notebook_draw_focus;
container_class->add = gtk_notebook_add;
container_class->remove = gtk_notebook_remove;
container_class->foreach = gtk_notebook_foreach;
container_class->focus = gtk_notebook_focus;
container_class->set_focus_child = gtk_notebook_set_focus_child;
container_class->child_type = gtk_notebook_child_type;
class->switch_page = gtk_real_notebook_switch_page;
}
static GtkType
gtk_notebook_child_type (GtkContainer *container)
{
return GTK_TYPE_WIDGET;
}
static void
gtk_notebook_init (GtkNotebook *notebook)
{
GTK_WIDGET_SET_FLAGS (notebook, GTK_CAN_FOCUS);
notebook->cur_page = NULL;
notebook->children = NULL;
notebook->first_tab = NULL;
notebook->focus_tab = NULL;
notebook->panel = NULL;
notebook->menu = NULL;
notebook->tab_border = 3;
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;
}
GtkWidget*
gtk_notebook_new (void)
{
return GTK_WIDGET (gtk_type_new (gtk_notebook_get_type ()));
}
static void
gtk_notebook_destroy (GtkObject *object)
{
GtkNotebook *notebook;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (object));
notebook = GTK_NOTEBOOK (object);
if (notebook->menu)
gtk_notebook_popup_disable (notebook);
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
void
gtk_notebook_append_page (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (child != NULL);
gtk_notebook_insert_page_menu (notebook, child, tab_label, NULL, -1);
}
void
gtk_notebook_append_page_menu (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label,
GtkWidget *menu_label)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (child != NULL);
gtk_notebook_insert_page_menu (notebook, child, tab_label, menu_label, -1);
}
void
gtk_notebook_prepend_page (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (child != NULL);
gtk_notebook_insert_page_menu (notebook, child, tab_label, NULL, 0);
}
void
gtk_notebook_prepend_page_menu (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label,
GtkWidget *menu_label)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (child != NULL);
gtk_notebook_insert_page_menu (notebook, child, tab_label, menu_label, 0);
}
void
gtk_notebook_insert_page (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label,
gint position)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (child != NULL);
gtk_notebook_insert_page_menu (notebook, child, tab_label, NULL, position);
}
void
gtk_notebook_insert_page_menu (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label,
GtkWidget *menu_label,
gint position)
{
GtkNotebookPage *page;
gint nchildren;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (child != NULL);
page = g_new (GtkNotebookPage, 1);
page->child = child;
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;
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;
if (!menu_label)
page->default_menu = TRUE;
else
{
gtk_widget_ref (page->menu_label);
gtk_object_sink (GTK_OBJECT(page->menu_label));
}
if (notebook->menu)
gtk_notebook_menu_item_create (notebook, page, position);
gtk_notebook_update_labels
(notebook, g_list_nth (notebook->children, position), position + 1);
if (!notebook->first_tab)
notebook->first_tab = notebook->children;
gtk_widget_set_parent (child, GTK_WIDGET (notebook));
if (tab_label)
{
gtk_widget_set_parent (tab_label, GTK_WIDGET (notebook));
gtk_widget_show (tab_label);
}
if (!notebook->cur_page)
{
gtk_notebook_switch_page (notebook, page, 0);
notebook->focus_tab = NULL;
}
if (GTK_WIDGET_VISIBLE (notebook))
{
if (GTK_WIDGET_REALIZED (notebook) &&
!GTK_WIDGET_REALIZED (child))
gtk_widget_realize (child);
if (GTK_WIDGET_MAPPED (notebook) &&
!GTK_WIDGET_MAPPED (child) && notebook->cur_page == page)
gtk_widget_map (child);
if (tab_label)
{
if (GTK_WIDGET_REALIZED (notebook) &&
!GTK_WIDGET_REALIZED (tab_label))
gtk_widget_realize (tab_label);
if (GTK_WIDGET_MAPPED (notebook) &&
!GTK_WIDGET_MAPPED (tab_label))
gtk_widget_map (tab_label);
}
}
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (notebook))
gtk_widget_queue_resize (child);
}
void
gtk_notebook_remove_page (GtkNotebook *notebook,
gint page_num)
{
GList *list;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if ((list = g_list_nth (notebook->children, page_num)))
gtk_notebook_real_remove (notebook, list, page_num);
}
static void
gtk_notebook_add (GtkContainer *container,
GtkWidget *widget)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (container));
g_return_if_fail (widget != NULL);
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;
gint page_num;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (container));
g_return_if_fail (widget != NULL);
notebook = GTK_NOTEBOOK (container);
children = notebook->children;
page_num = 0;
while (children)
{
page = children->data;
if (page->child == widget)
{
gtk_notebook_real_remove (notebook, children, page_num);
break;
}
page_num++;
children = children->next;
}
}
static void
gtk_notebook_real_remove (GtkNotebook *notebook,
GList *list,
gint page_num)
{
GtkNotebookPage *page;
GList * next_list;
gint need_resize = FALSE;
if (list->prev)
{
next_list = list->prev;
page_num--;
}
else if (list->next)
{
next_list = list->next;
page_num++;
}
else
next_list = NULL;
if (notebook->cur_page == list->data)
{
notebook->cur_page = NULL;
if (next_list)
{
page = next_list->data;
gtk_notebook_switch_page (notebook, page, page_num);
}
}
if (list == notebook->first_tab)
notebook->first_tab = next_list;
if (list == notebook->focus_tab)
notebook->focus_tab = next_list;
page = list->data;
if ((GTK_WIDGET_VISIBLE (page->child) ||
(page->tab_label && GTK_WIDGET_VISIBLE (page->tab_label)))
&& GTK_WIDGET_VISIBLE (notebook))
need_resize = TRUE;
gtk_widget_unparent (page->child);
if (page->tab_label)
gtk_widget_unparent (page->tab_label);
if (notebook->menu)
{
gtk_container_remove (GTK_CONTAINER (notebook->menu),
page->menu_label->parent);
gtk_widget_queue_resize (notebook->menu);
}
if (!page->default_menu)
gtk_widget_unref (page->menu_label);
gtk_notebook_update_labels (notebook, list->next, page_num + 1);
notebook->children = g_list_remove_link (notebook->children, list);
g_list_free (list);
g_free (page);
if (need_resize)
gtk_widget_queue_resize (GTK_WIDGET (notebook));
}
gint
gtk_notebook_current_page (GtkNotebook *notebook)
{
GList *children;
gint cur_page;
g_return_val_if_fail (notebook != NULL, -1);
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1);
if (notebook->cur_page)
{
cur_page = 0;
children = notebook->children;
while (children)
{
if (children->data == notebook->cur_page)
break;
children = children->next;
cur_page += 1;
}
if (!children)
cur_page = -1;
}
else
{
cur_page = -1;
}
return cur_page;
}
void
gtk_notebook_set_page (GtkNotebook *notebook,
gint page_num)
{
GList *list;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if ((list = g_list_nth (notebook->children, page_num)))
gtk_notebook_switch_page (notebook,
((GtkNotebookPage *)(list->data)), page_num);
}
void
gtk_notebook_next_page (GtkNotebook *notebook)
{
GtkNotebookPage *page;
GList *children;
gint num;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
children = notebook->children;
num = 0;
while (children)
{
if (notebook->cur_page == children->data)
break;
children = children->next;
num++;
}
if (!children)
return;
if (children->next)
{
children = children->next;
num++;
}
else
{
children = notebook->children;
num = 0;
}
page = children->data;
gtk_notebook_switch_page (notebook, page, num);
}
void
gtk_notebook_prev_page (GtkNotebook *notebook)
{
GtkNotebookPage *page;
GList *children;
gint num;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
children = notebook->children;
num = 0;
while (children)
{
if (notebook->cur_page == children->data)
break;
children = children->next;
num++;
}
if (!children)
return;
if (children->prev)
{
children = children->prev;
num--;
}
else
{
while (children->next)
{
children = children->next;
num++;
}
}
page = children->data;
gtk_notebook_switch_page (notebook, page, num);
}
static void
gtk_notebook_foreach (GtkContainer *container,
GtkCallback callback,
gpointer callback_data)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (container));
g_return_if_fail (callback != NULL);
notebook = GTK_NOTEBOOK (container);
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
(* callback) (page->child, callback_data);
}
}
static void
gtk_notebook_expose_tabs (GtkNotebook *notebook)
{
GtkWidget *widget;
GtkNotebookPage *page;
GdkEventExpose event;
gint border;
widget = GTK_WIDGET (notebook);
border = GTK_CONTAINER (notebook)->border_width;
page = notebook->first_tab->data;
event.type = GDK_EXPOSE;
event.window = widget->window;
event.count = 0;
event.area.x = border;
event.area.y = border;
switch (notebook->tab_pos)
{
case GTK_POS_BOTTOM:
event.area.y = widget->allocation.height - border
- page->allocation.height - widget->style->klass->ythickness;
if (notebook->first_tab->data != notebook->cur_page)
event.area.y -= widget->style->klass->ythickness;
case GTK_POS_TOP:
event.area.width = widget->allocation.width - 2 * border;
event.area.height = page->allocation.height
+ widget->style->klass->ythickness;
if (notebook->first_tab->data != notebook->cur_page)
event.area.height += widget->style->klass->ythickness;
break;
case GTK_POS_RIGHT:
event.area.x = widget->allocation.width - border
- page->allocation.width - widget->style->klass->xthickness;
if (notebook->first_tab->data != notebook->cur_page)
event.area.x -= widget->style->klass->xthickness;
case GTK_POS_LEFT:
event.area.width = page->allocation.width
+ widget->style->klass->xthickness;
event.area.height = widget->allocation.height - 2 * border;
if (notebook->first_tab->data != notebook->cur_page)
event.area.width += widget->style->klass->xthickness;
break;
}
gtk_widget_event (widget, (GdkEvent *) &event);
}
void
gtk_notebook_set_tab_pos (GtkNotebook *notebook,
GtkPositionType pos)
{
g_return_if_fail (notebook != NULL);
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));
if (notebook->panel)
gdk_window_clear (notebook->panel);
}
}
}
void
gtk_notebook_set_show_tabs (GtkNotebook *notebook,
gint show_tabs)
{
GtkNotebookPage *page;
GList *children;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
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);
}
if (notebook->panel)
gdk_window_hide (notebook->panel);
}
else
{
gchar string[32];
gint i = 1;
GTK_WIDGET_SET_FLAGS (notebook, GTK_CAN_FOCUS);
while (children)
{
page = children->data;
children = children->next;
if (page->default_tab)
{
sprintf (string, "Page %d", i);
page->tab_label = gtk_label_new (string);
gtk_widget_set_parent (page->tab_label, GTK_WIDGET (notebook));
}
gtk_widget_show (page->tab_label);
i++;
}
}
gtk_widget_queue_resize (GTK_WIDGET (notebook));
}
void
gtk_notebook_set_show_border (GtkNotebook *notebook,
gint show_border)
{
g_return_if_fail (notebook != NULL);
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));
}
}
void
gtk_notebook_set_scrollable (GtkNotebook *notebook,
gint scrollable)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (scrollable != notebook->scrollable)
{
if ( (notebook->scrollable = (scrollable != 0)) )
gtk_notebook_panel_realize (notebook);
else if (notebook->panel)
{
gdk_window_destroy (notebook->panel);
notebook->panel = NULL;
}
gtk_widget_queue_resize (GTK_WIDGET(notebook));
}
}
static void
gtk_notebook_map (GtkWidget *widget)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
gdk_window_show (widget->window);
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, &(widget->allocation));
else
{
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
if (page->tab_label &&
GTK_WIDGET_VISIBLE (page->child) &&
!GTK_WIDGET_MAPPED (page->tab_label))
gtk_widget_map (page->tab_label);
}
}
}
static void
gtk_notebook_unmap (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
gdk_window_hide (widget->window);
if (GTK_NOTEBOOK (widget)->panel)
gdk_window_hide (GTK_NOTEBOOK (widget)->panel);
}
static void
gtk_notebook_realize (GtkWidget *widget)
{
GtkNotebook *notebook;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
notebook = GTK_NOTEBOOK (widget);
GTK_WIDGET_SET_FLAGS (notebook, GTK_REALIZED);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |= GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK
| GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
gdk_window_set_user_data (widget->window, notebook);
widget->style = gtk_style_attach (widget->style, widget->window);
gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
if (notebook->scrollable)
gtk_notebook_panel_realize (notebook);
}
static void
gtk_notebook_panel_realize (GtkNotebook *notebook)
{
GtkWidget *widget;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
widget = GTK_WIDGET (notebook);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |= GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK
| GDK_BUTTON_RELEASE_MASK | GDK_LEAVE_NOTIFY_MASK | GDK_ENTER_NOTIFY_MASK
| GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
attributes.width = 2 * ARROW_SIZE + ARROW_SPACING;
attributes.height = ARROW_SIZE;
attributes.x = widget->allocation.width - attributes.width -
GTK_CONTAINER (notebook)->border_width;
attributes.y = widget->allocation.height - ARROW_SIZE -
GTK_CONTAINER (notebook)->border_width;
if (notebook->tab_pos == GTK_POS_TOP)
attributes.y = GTK_CONTAINER (notebook)->border_width;
else if (notebook->tab_pos == GTK_POS_LEFT)
attributes.x = widget->allocation.x
+ GTK_CONTAINER (notebook)->border_width;
notebook->panel = gdk_window_new (widget->window, &attributes,
attributes_mask);
gtk_style_set_background (widget->style, notebook->panel,
GTK_STATE_NORMAL);
gdk_window_set_user_data (notebook->panel, widget);
}
static void
gtk_notebook_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
g_return_if_fail (requisition != NULL);
notebook = GTK_NOTEBOOK (widget);
widget->requisition.width = 0;
widget->requisition.height = 0;
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
{
gtk_widget_size_request (page->child, &page->child->requisition);
widget->requisition.width = MAX (widget->requisition.width,
page->child->requisition.width);
widget->requisition.height = MAX (widget->requisition.height,
page->child->requisition.height);
}
}
if (notebook->show_border || notebook->show_tabs)
{
widget->requisition.width += widget->style->klass->xthickness * 2;
widget->requisition.height += widget->style->klass->ythickness * 2;
if (notebook->show_tabs)
{
gint tab_width = 0;
gint tab_height = 0;
gint tab_max = 0;
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
{
gtk_widget_size_request (page->tab_label,
&page->tab_label->requisition);
page->requisition.width =
(page->tab_label->requisition.width +
(widget->style->klass->xthickness + notebook->tab_border)
* 2);
page->requisition.height =
(page->tab_label->requisition.height +
(widget->style->klass->ythickness + notebook->tab_border)
* 2);
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
page->requisition.width -= TAB_OVERLAP;
tab_width += page->requisition.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.height -= TAB_OVERLAP;
tab_width = MAX (tab_width, page->requisition.width);
tab_height += page->requisition.height;
tab_max = MAX (tab_max, page->requisition.height);
break;
}
}
}
children = notebook->children;
if (children && children->next && notebook->scrollable)
{
if ((notebook->tab_pos == GTK_POS_TOP) ||
(notebook->tab_pos == GTK_POS_BOTTOM))
{
if (widget->requisition.width < tab_width)
{
tab_width = tab_max + 2 * (ARROW_SIZE + ARROW_SPACING);
tab_height = MAX (tab_height, ARROW_SIZE);
}
}
else
{
if (widget->requisition.height < tab_height)
{
tab_height = tab_max + ARROW_SIZE + ARROW_SPACING;
tab_width = MAX (tab_width,
ARROW_SPACING + 2 * ARROW_SIZE);
}
}
}
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
{
if ((notebook->tab_pos == GTK_POS_TOP) ||
(notebook->tab_pos == GTK_POS_BOTTOM))
page->requisition.height = tab_height;
else
page->requisition.width = tab_width;
}
}
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
tab_width += widget->style->klass->xthickness;
widget->requisition.width = MAX (widget->requisition.width,
tab_width);
widget->requisition.height += tab_height;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
tab_height += widget->style->klass->ythickness;
widget->requisition.width += tab_width;
widget->requisition.height = MAX (widget->requisition.height,
tab_height);
break;
}
}
}
widget->requisition.width += GTK_CONTAINER (widget)->border_width * 2;
widget->requisition.height += GTK_CONTAINER (widget)->border_width * 2;
}
static void
gtk_notebook_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GtkAllocation child_allocation;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
g_return_if_fail (allocation != NULL);
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget))
gdk_window_move_resize (widget->window,
allocation->x, allocation->y,
allocation->width, allocation->height);
notebook = GTK_NOTEBOOK (widget);
if (notebook->children)
{
child_allocation.x = GTK_CONTAINER (widget)->border_width;
child_allocation.y = GTK_CONTAINER (widget)->border_width;
child_allocation.width = MAX (1, allocation->width - child_allocation.x * 2);
child_allocation.height = MAX (1, allocation->height - child_allocation.y * 2);
if (notebook->show_tabs || notebook->show_border)
{
child_allocation.x += widget->style->klass->xthickness;
child_allocation.y += widget->style->klass->ythickness;
child_allocation.width = MAX (1,
child_allocation.width - widget->style->klass->xthickness * 2);
child_allocation.height = MAX (1,
child_allocation.height - widget->style->klass->ythickness * 2);
if (notebook->show_tabs && notebook->children)
{
switch (notebook->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);
}
gtk_notebook_pages_allocate (notebook, allocation);
}
}
static void
gtk_notebook_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
GdkPoint points[6];
gint width, height;
gint x, y;
gint showarrow;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
{
notebook = GTK_NOTEBOOK (widget);
gdk_window_clear_area (widget->window,
area->x, area->y,
area->width, area->height);
if (notebook->show_tabs || notebook->show_border)
{
x = GTK_CONTAINER (widget)->border_width;
y = GTK_CONTAINER (widget)->border_width;
width = widget->allocation.width - x * 2;
height = widget->allocation.height - y * 2;
if (notebook->show_tabs && notebook->children)
{
if (!GTK_WIDGET_MAPPED (notebook->cur_page->tab_label))
{
GtkNotebookPage *page;
page = notebook->first_tab->data;
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
y += page->allocation.height +
widget->style->klass->ythickness;
case GTK_POS_BOTTOM:
height -= page->allocation.height +
widget->style->klass->ythickness;
break;
case GTK_POS_LEFT:
x += page->allocation.width +
widget->style->klass->xthickness;
case GTK_POS_RIGHT:
width -= page->allocation.width +
widget->style->klass->xthickness;
break;
}
gtk_draw_shadow (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_OUT,
x, y, width, height);
}
else
{
switch (notebook->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 (notebook->tab_pos)
{
case GTK_POS_TOP:
points[0].x = notebook->cur_page->allocation.x;
points[0].y = y;
points[1].x = x;
points[1].y = y;
points[2].x = x;
points[2].y = y + height - 1;
points[3].x = x + width - 1;
points[3].y = y + height - 1;
points[4].x = x + width - 1;
points[4].y = y;
points[5].x = (notebook->cur_page->allocation.x +
notebook->cur_page->allocation.width -
widget->style->klass->xthickness);
points[5].y = y;
if (points[5].x == (x + width))
points[5].x -= 1;
break;
case GTK_POS_BOTTOM:
points[0].x = (notebook->cur_page->allocation.x +
notebook->cur_page->allocation.width -
widget->style->klass->xthickness);
points[0].y = y + height - 1;
points[1].x = x + width - 1;
points[1].y = y + height - 1;
points[2].x = x + width - 1;
points[2].y = y;
points[3].x = x;
points[3].y = y;
points[4].x = x;
points[4].y = y + height - 1;
points[5].x = notebook->cur_page->allocation.x;
points[5].y = y + height - 1;
if (points[0].x == (x + width))
points[0].x -= 1;
break;
case GTK_POS_LEFT:
points[0].x = x;
points[0].y = (notebook->cur_page->allocation.y +
notebook->cur_page->allocation.height -
widget->style->klass->ythickness);
points[1].x = x;
points[1].y = y + height - 1;
points[2].x = x + width - 1;
points[2].y = y + height - 1;
points[3].x = x + width - 1;
points[3].y = y;
points[4].x = x;
points[4].y = y;
points[5].x = x;
points[5].y = notebook->cur_page->allocation.y;
if (points[0].y == (y + height))
points[0].y -= 1;
break;
case GTK_POS_RIGHT:
points[0].x = x + width - 1;
points[0].y = notebook->cur_page->allocation.y;
points[1].x = x + width - 1;
points[1].y = y;
points[2].x = x;
points[2].y = y;
points[3].x = x;
points[3].y = y + height - 1;
points[4].x = x + width - 1;
points[4].y = y + height - 1;
points[5].x = x + width - 1;
points[5].y = (notebook->cur_page->allocation.y +
notebook->cur_page->allocation.height -
widget->style->klass->ythickness);
if (points[5].y == (y + height))
points[5].y -= 1;
break;
}
gtk_draw_polygon (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_OUT,
points, 6, FALSE);
}
children = g_list_last (notebook->children);
showarrow = FALSE;
while (children)
{
page = children->data;
children = children->prev;
if (!GTK_WIDGET_MAPPED (page->tab_label))
showarrow = TRUE;
else if (notebook->cur_page != page)
gtk_notebook_draw_tab (notebook, page, area);
}
if (showarrow && notebook->scrollable && notebook->show_tabs)
{
gtk_notebook_draw_arrow (notebook, GTK_ARROW_LEFT);
gtk_notebook_draw_arrow (notebook, GTK_ARROW_RIGHT);
}
if (notebook->cur_page &&
GTK_WIDGET_MAPPED(((GtkNotebookPage *)
(notebook->cur_page))->tab_label))
gtk_notebook_draw_tab (notebook, notebook->cur_page, area);
}
else if (notebook->show_border)
{
gtk_draw_shadow (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_OUT,
x, y, width, height);
}
}
}
}
static void
gtk_notebook_draw (GtkWidget *widget,
GdkRectangle *area)
{
GtkNotebook *notebook;
GdkRectangle child_area;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
{
notebook = GTK_NOTEBOOK (widget);
gtk_notebook_paint (widget, area);
gtk_widget_draw_focus (widget);
if (notebook->cur_page &&
gtk_widget_intersect (notebook->cur_page->child, area, &child_area))
gtk_widget_draw (notebook->cur_page->child, &child_area);
}
}
static gint
gtk_notebook_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkNotebook *notebook;
GdkEventExpose child_event;
g_return_val_if_fail (widget != NULL, FALSE);
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);
gtk_widget_draw_focus (widget);
child_event = *event;
if (notebook->cur_page &&
GTK_WIDGET_NO_WINDOW (notebook->cur_page->child) &&
gtk_widget_intersect (notebook->cur_page->child, &event->area,
&child_event.area))
gtk_widget_event (notebook->cur_page->child, (GdkEvent*) &child_event);
}
return FALSE;
}
static gint
gtk_notebook_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
gint num;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
notebook = GTK_NOTEBOOK (widget);
if (event->type != GDK_BUTTON_PRESS || !notebook->children
|| notebook->button)
return FALSE;
if (event->window == notebook->panel)
{
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
gtk_grab_add (widget);
notebook->button = event->button;
if (event->x <= ARROW_SIZE + ARROW_SPACING / 2)
{
notebook->click_child = GTK_ARROW_LEFT;
if (event->button == 1)
{
if (!notebook->focus_tab || notebook->focus_tab->prev)
gtk_container_focus (GTK_CONTAINER (notebook), GTK_DIR_LEFT);
if (!notebook->timer)
{
notebook->timer = gtk_timeout_add
(NOTEBOOK_INIT_SCROLL_DELAY,
(GtkFunction) gtk_notebook_timer, (gpointer) notebook);
notebook->need_timer = TRUE;
}
}
else if (event->button == 2)
gtk_notebook_page_select (GTK_NOTEBOOK (widget));
else if (event->button == 3)
gtk_notebook_switch_focus_tab (notebook, notebook->children);
gtk_notebook_draw_arrow (notebook, GTK_ARROW_LEFT);
}
else
{
notebook->click_child = GTK_ARROW_RIGHT;
if (event->button == 1)
{
if (!notebook->focus_tab || notebook->focus_tab->next)
gtk_container_focus (GTK_CONTAINER (notebook), GTK_DIR_RIGHT);
if (!notebook->timer)
{
notebook->timer = gtk_timeout_add
(NOTEBOOK_INIT_SCROLL_DELAY,
(GtkFunction) gtk_notebook_timer, (gpointer) notebook);
notebook->need_timer = TRUE;
}
}
else if (event->button == 2)
gtk_notebook_page_select (GTK_NOTEBOOK (widget));
else if (event->button == 3)
gtk_notebook_switch_focus_tab (notebook,
g_list_last (notebook->children));
gtk_notebook_draw_arrow (notebook, GTK_ARROW_RIGHT);
}
}
else if (event->window == widget->window)
{
if (event->button == 3 && notebook->menu)
{
gtk_menu_popup (GTK_MENU (notebook->menu), NULL, NULL,
NULL, NULL, 3, event->time);
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) &&
(event->x >= page->allocation.x) &&
(event->y >= page->allocation.y) &&
(event->x <= (page->allocation.x + page->allocation.width)) &&
(event->y <= (page->allocation.y + page->allocation.height)))
{
if (page == notebook->cur_page && notebook->focus_tab &&
notebook->focus_tab != children &&
GTK_WIDGET_HAS_FOCUS (notebook))
{
GtkNotebookPage *old_page;
notebook->child_has_focus = FALSE;
old_page = (GtkNotebookPage *)
(notebook->focus_tab->data);
notebook->focus_tab = children;
gtk_notebook_focus_changed (notebook, old_page);
}
else
{
notebook->focus_tab = children;
gtk_notebook_switch_page (notebook, page, num);
gtk_widget_grab_focus (widget);
}
break;
}
children = children->next;
num++;
}
if (!children && !GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
}
return FALSE;
}
static gint
gtk_notebook_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkNotebook *notebook;
g_return_val_if_fail (widget != NULL, FALSE);
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)
{
guint click_child;
if (notebook->timer)
{
gtk_timeout_remove (notebook->timer);
notebook->timer = 0;
notebook->need_timer = FALSE;
}
gtk_grab_remove (widget);
click_child = notebook->click_child;
notebook->click_child = 0;
notebook->button = 0;
gtk_notebook_draw_arrow (notebook, click_child);
}
return FALSE;
}
static gint
gtk_notebook_enter_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkNotebook *notebook;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
notebook = GTK_NOTEBOOK (widget);
if (event->window == notebook->panel)
{
gint x;
gint y;
gdk_window_get_pointer (notebook->panel, &x, &y, NULL);
if (x <= ARROW_SIZE + ARROW_SPACING / 2)
{
notebook->in_child = GTK_ARROW_LEFT;
if (notebook->click_child == 0)
gtk_notebook_draw_arrow (notebook, GTK_ARROW_LEFT);
}
else
{
notebook->in_child = GTK_ARROW_RIGHT;
if (notebook->click_child == 0)
gtk_notebook_draw_arrow (notebook, GTK_ARROW_RIGHT);
}
}
return FALSE;
}
static gint
gtk_notebook_leave_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkNotebook *notebook;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
notebook = GTK_NOTEBOOK (widget);
if (event->window == notebook->panel && !notebook->click_child)
{
if (notebook->in_child == GTK_ARROW_LEFT)
{
notebook->in_child = 0;
gtk_notebook_draw_arrow (notebook,GTK_ARROW_LEFT);
}
else
{
notebook->in_child = 0;
gtk_notebook_draw_arrow (notebook,GTK_ARROW_RIGHT);
}
}
return FALSE;
}
static gint
gtk_notebook_motion_notify (GtkWidget *widget,
GdkEventMotion *event)
{
GtkNotebook *notebook;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
notebook = GTK_NOTEBOOK (widget);
if (notebook->button)
return FALSE;
if (event->window == notebook->panel)
{
gint x;
x = event->x;
if (event->is_hint)
gdk_window_get_pointer (notebook->panel, &x, NULL, NULL);
if (x <= ARROW_SIZE + ARROW_SPACING / 2 &&
notebook->in_child == GTK_ARROW_RIGHT)
{
notebook->in_child = GTK_ARROW_LEFT;
gtk_notebook_draw_arrow (notebook, GTK_ARROW_LEFT);
gtk_notebook_draw_arrow (notebook, GTK_ARROW_RIGHT);
}
else if (x > ARROW_SIZE + ARROW_SPACING / 2 &&
notebook->in_child == GTK_ARROW_LEFT)
{
notebook->in_child = GTK_ARROW_RIGHT;
gtk_notebook_draw_arrow (notebook, GTK_ARROW_RIGHT);
gtk_notebook_draw_arrow (notebook, GTK_ARROW_LEFT);
}
return FALSE;
}
return FALSE;
}
static gint
gtk_notebook_timer (GtkNotebook *notebook)
{
g_return_val_if_fail (notebook != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE);
if (notebook->timer)
{
if (notebook->click_child == GTK_ARROW_LEFT)
{
if (!notebook->focus_tab || notebook->focus_tab->prev)
gtk_container_focus (GTK_CONTAINER (notebook), GTK_DIR_LEFT);
}
else if (notebook->click_child == GTK_ARROW_RIGHT)
{
if (!notebook->focus_tab || notebook->focus_tab->next)
gtk_container_focus (GTK_CONTAINER (notebook), GTK_DIR_RIGHT);
}
if (notebook->need_timer)
{
notebook->need_timer = FALSE;
notebook->timer = gtk_timeout_add
(NOTEBOOK_SCROLL_DELAY, (GtkFunction) gtk_notebook_timer,
(gpointer) notebook);
return FALSE;
}
return TRUE;
}
return FALSE;
}
static void
gtk_notebook_draw_arrow (GtkNotebook *notebook, guint arrow)
{
GtkStateType state_type;
GtkShadowType shadow_type;
GtkWidget *widget;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
widget = GTK_WIDGET(notebook);
if (GTK_WIDGET_DRAWABLE (notebook))
{
if (notebook->in_child == arrow)
{
if (notebook->click_child == arrow)
state_type = GTK_STATE_ACTIVE;
else
state_type = GTK_STATE_PRELIGHT;
}
else
state_type = GTK_STATE_NORMAL;
if (notebook->click_child == arrow)
shadow_type = GTK_SHADOW_IN;
else
shadow_type = GTK_SHADOW_OUT;
if (arrow == GTK_ARROW_LEFT)
{
if (notebook->tab_pos == GTK_POS_LEFT ||
notebook->tab_pos == GTK_POS_RIGHT)
arrow = GTK_ARROW_UP;
gtk_draw_arrow (widget->style, notebook->panel, state_type,
shadow_type, arrow, TRUE,
0, 0, ARROW_SIZE, ARROW_SIZE);
}
else
{
if (notebook->tab_pos == GTK_POS_LEFT ||
notebook->tab_pos == GTK_POS_RIGHT)
arrow = GTK_ARROW_DOWN;
gtk_draw_arrow (widget->style, notebook->panel, state_type,
shadow_type, arrow, TRUE, ARROW_SIZE + ARROW_SPACING,
0, ARROW_SIZE, ARROW_SIZE);
}
}
}
static void
gtk_real_notebook_switch_page (GtkNotebook *notebook,
GtkNotebookPage *page,
gint page_num)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (page != NULL);
if (notebook->cur_page == page)
return;
if (notebook->cur_page && GTK_WIDGET_MAPPED (notebook->cur_page->child))
gtk_widget_unmap (notebook->cur_page->child);
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_notebook_pages_allocate (notebook, &GTK_WIDGET (notebook)->allocation);
if (GTK_WIDGET_MAPPED (notebook))
{
if (GTK_WIDGET_REALIZED (notebook->cur_page->child))
gtk_widget_map (notebook->cur_page->child);
else
{
gtk_widget_map (notebook->cur_page->child);
gtk_widget_size_allocate (GTK_WIDGET (notebook),
&GTK_WIDGET (notebook)->allocation);
}
}
if (GTK_WIDGET_DRAWABLE (notebook))
gtk_widget_queue_draw (GTK_WIDGET (notebook));
}
static void
gtk_notebook_draw_tab (GtkNotebook *notebook,
GtkNotebookPage *page,
GdkRectangle *area)
{
GdkRectangle child_area;
GdkRectangle page_area;
GtkStateType state_type;
GdkPoint points[6];
gint n = 0;
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))
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;
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
if (child_area.x + child_area.width >
page->allocation.x + page->allocation.width - TAB_OVERLAP)
{
points[0].x = page->allocation.x + page->allocation.width - 1;
points[0].y = page->allocation.y + page->allocation.height - 1;
points[1].x = page->allocation.x + page->allocation.width - 1;
points[1].y = page->allocation.y + TAB_CURVATURE;
points[2].x = page->allocation.x + page->allocation.width
- TAB_CURVATURE - 1;
points[2].y = page->allocation.y;
n = 3;
}
else
{
points[0].x = page->allocation.x + page->allocation.width
- TAB_OVERLAP - 1;
points[0].y = page->allocation.y;
n = 1;
}
if ( (child_area.x < page->allocation.x + TAB_OVERLAP) &&
(page == notebook->cur_page ||
page == (GtkNotebookPage *)(notebook->children->data) ||
(notebook->scrollable &&
page == (GtkNotebookPage *)(notebook->first_tab->data))) )
{
points[n].x = page->allocation.x + TAB_CURVATURE;
points[n++].y = page->allocation.y;
points[n].x = page->allocation.x;
points[n++].y = page->allocation.y + TAB_CURVATURE;
points[n].x = page->allocation.x;
points[n++].y = page->allocation.y + page->allocation.height - 1;
}
else
{
points[n].x = page->allocation.x + TAB_OVERLAP;
points[n++].y = page->allocation.y;
}
break;
case GTK_POS_BOTTOM:
if ( (child_area.x < page->allocation.x + TAB_OVERLAP) &&
(page == notebook->cur_page ||
page == (GtkNotebookPage *)(notebook->children->data) ||
(notebook->scrollable &&
page == (GtkNotebookPage *)(notebook->first_tab->data))) )
{
points[0].x = page->allocation.x;
points[0].y = page->allocation.y;
points[1].x = page->allocation.x;
points[1].y = page->allocation.y + page->allocation.height
- TAB_CURVATURE - 1;
points[2].x = page->allocation.x + TAB_CURVATURE;
points[2].y = page->allocation.y + page->allocation.height - 1;
n = 3;
}
else
{
points[0].x = page->allocation.x + TAB_OVERLAP;
points[0].y = page->allocation.y + page->allocation.height - 1;
n = 1;
}
if (child_area.x + child_area.width >
page->allocation.x + page->allocation.width - TAB_OVERLAP)
{
points[n].x = page->allocation.x + page->allocation.width
- TAB_CURVATURE - 1;
points[n++].y = page->allocation.y + page->allocation.height - 1;
points[n].x = page->allocation.x + page->allocation.width - 1;
points[n++].y = page->allocation.y + page->allocation.height
- TAB_CURVATURE - 1;
points[n].x = page->allocation.x + page->allocation.width - 1;
points[n++].y = page->allocation.y;
}
else
{
points[n].x = page->allocation.x + page->allocation.width
- TAB_OVERLAP - 1;
points[n++].y = page->allocation.y + page->allocation.height - 1;
}
break;
case GTK_POS_LEFT:
if ( (child_area.y < page->allocation.y + TAB_OVERLAP) &&
(page == notebook->cur_page ||
page == (GtkNotebookPage *)(notebook->children->data) ||
(notebook->scrollable &&
page == (GtkNotebookPage *)(notebook->first_tab->data))) )
{
points[0].x = page->allocation.x + page->allocation.width - 1;
points[0].y = page->allocation.y;
points[1].x = page->allocation.x + TAB_CURVATURE;
points[1].y = page->allocation.y;
points[2].x = page->allocation.x;
points[2].y = page->allocation.y + TAB_CURVATURE;
n = 3;
}
else
{
points[0].x = page->allocation.x;
points[0].y = page->allocation.y + TAB_OVERLAP;
n = 1;
}
if (child_area.y + child_area.height >
page->allocation.y + page->allocation.height - TAB_OVERLAP)
{
points[n].x = page->allocation.x;
points[n++].y = page->allocation.y + page->allocation.height
- TAB_CURVATURE - 1;
points[n].x = page->allocation.x + TAB_CURVATURE;
points[n++].y = page->allocation.y + page->allocation.height - 1;
points[n].x = page->allocation.x + page->allocation.width - 1;
points[n++].y = page->allocation.y + page->allocation.height - 1;
}
else
{
points[n].x = page->allocation.x;
points[n++].y = page->allocation.y + page->allocation.height
- TAB_OVERLAP - 1;
}
break;
case GTK_POS_RIGHT:
if (child_area.y + child_area.height >
page->allocation.y + page->allocation.height - TAB_OVERLAP)
{
points[0].x = page->allocation.x;
points[0].y = page->allocation.y + page->allocation.height - 1;
points[1].x = page->allocation.x + page->allocation.width
- TAB_CURVATURE - 1;
points[1].y = page->allocation.y + page->allocation.height - 1;
points[2].x = page->allocation.x + page->allocation.width - 1;
points[2].y = page->allocation.y + page->allocation.height
- TAB_CURVATURE - 1;
n = 3;
}
else
{
points[0].x = page->allocation.x + page->allocation.width - 1;
points[0].y = page->allocation.y + page->allocation.height
- TAB_OVERLAP - 1;
n = 1;
}
if ( (child_area.y < page->allocation.y + TAB_OVERLAP) &&
(page == notebook->cur_page ||
page == (GtkNotebookPage *)(notebook->children->data) ||
(notebook->scrollable &&
page == (GtkNotebookPage *)(notebook->first_tab->data))) )
{
points[n].x = page->allocation.x + page->allocation.width - 1;
points[n++].y = page->allocation.y + TAB_CURVATURE;
points[n].x = page->allocation.x + page->allocation.width
- TAB_CURVATURE - 1;
points[n++].y = page->allocation.y;
points[n].x = page->allocation.x;
points[n++].y = page->allocation.y;
}
else
{
points[n].x = page->allocation.x + page->allocation.width - 1;
points[n++].y = page->allocation.y + TAB_OVERLAP;
}
break;
}
widget = GTK_WIDGET(notebook);
if (notebook->cur_page == page)
{
state_type = GTK_STATE_NORMAL;
}
else
{
state_type = GTK_STATE_ACTIVE;
gdk_draw_rectangle (widget->window, widget->style->bg_gc[state_type],
TRUE, child_area.x, child_area.y,
child_area.width, child_area.height);
}
gtk_draw_polygon (widget->style, widget->window, state_type,
GTK_SHADOW_OUT, points, n, FALSE);
if (gtk_widget_intersect (page->tab_label, area, &child_area))
gtk_widget_draw (page->tab_label, &child_area);
}
}
static void
gtk_notebook_set_focus_child (GtkContainer *container,
GtkWidget *child)
{
GtkNotebook *notebook;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (container));
if (child)
{
g_return_if_fail (GTK_IS_WIDGET (child));
notebook = GTK_NOTEBOOK (container);
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)
notebook->focus_tab = children;
children = children->next;
}
}
}
parent_class->set_focus_child (container, child);
}
static gint
gtk_notebook_focus_in (GtkWidget *widget,
GdkEventFocus *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
GTK_NOTEBOOK (widget)->child_has_focus = FALSE;
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
gtk_widget_draw_focus (widget);
return FALSE;
}
static gint
gtk_notebook_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
gtk_widget_draw_focus (widget);
return FALSE;
}
static void
gtk_notebook_draw_focus (GtkWidget *widget)
{
GtkNotebook *notebook;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
notebook = GTK_NOTEBOOK (widget);
if (GTK_WIDGET_DRAWABLE (widget) && notebook->show_tabs &&
notebook->focus_tab)
{
GtkNotebookPage *page;
GdkGC *gc;
page = notebook->focus_tab->data;
if (GTK_WIDGET_HAS_FOCUS (widget))
gc = widget->style->black_gc;
else if (page == notebook->cur_page)
gc = widget->style->bg_gc[GTK_STATE_NORMAL];
else
gc = widget->style->bg_gc[GTK_STATE_ACTIVE];
gdk_draw_rectangle (widget->window,
gc, FALSE,
page->tab_label->allocation.x - 1,
page->tab_label->allocation.y - 1,
page->tab_label->allocation.width + 1,
page->tab_label->allocation.height + 1);
}
}
static void
gtk_notebook_focus_changed (GtkNotebook *notebook, GtkNotebookPage *old_page)
{
GtkWidget *widget;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
widget = GTK_WIDGET (notebook);
if (GTK_WIDGET_DRAWABLE (widget) && notebook->show_tabs)
{
GdkGC *gc;
if (notebook->focus_tab)
{
GtkNotebookPage *page;
page = notebook->focus_tab->data;
if (GTK_WIDGET_HAS_FOCUS (widget))
gc = widget->style->black_gc;
else if (page == notebook->cur_page)
gc = widget->style->bg_gc[GTK_STATE_NORMAL];
else
gc = widget->style->bg_gc[GTK_STATE_ACTIVE];
gdk_draw_rectangle (widget->window,
gc, FALSE,
page->tab_label->allocation.x - 1,
page->tab_label->allocation.y - 1,
page->tab_label->allocation.width + 1,
page->tab_label->allocation.height + 1);
}
if (old_page)
{
if (old_page == notebook->cur_page)
gc = widget->style->bg_gc[GTK_STATE_NORMAL];
else
gc = widget->style->bg_gc[GTK_STATE_ACTIVE];
gdk_draw_rectangle (widget->window,
gc, FALSE,
old_page->tab_label->allocation.x - 1,
old_page->tab_label->allocation.y - 1,
old_page->tab_label->allocation.width + 1,
old_page->tab_label->allocation.height + 1);
}
}
}
static void
gtk_notebook_calc_tabs (GtkNotebook *notebook,
GList *start,
GList **end,
gint *tab_space,
guint direction)
{
GtkNotebookPage *page = NULL;
GList *children;
children = start;
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
while (children)
{
page = children->data;
*tab_space -= page->requisition.width;
if (*tab_space < 0 || children == *end)
{
if (*tab_space < 0)
{
*tab_space = - (*tab_space + page->requisition.width);
*end = children;
}
break;
}
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;
*tab_space -= page->requisition.height;
if (*tab_space < 0 || children == *end)
{
if (*tab_space < 0)
{
*tab_space = - (*tab_space + page->requisition.height);
*end = children;
}
break;
}
if (direction == STEP_NEXT)
children = children->next;
else
children = children->prev;
}
break;
}
}
static void
gtk_notebook_pages_allocate (GtkNotebook *notebook,
GtkAllocation *allocation)
{
GtkWidget *widget;
GtkContainer *container;
GtkNotebookPage *page = NULL;
GtkAllocation child_allocation;
GList *children;
GList *last_child = NULL;
gint showarrow = FALSE;
gint tab_space = 0;
gint x = 0;
gint y = 0;
gint i;
gint n = 1;
gint old_fill = 0;
gint new_fill = 0;
if (!notebook->show_tabs || !notebook->children)
return;
widget = GTK_WIDGET (notebook);
container = GTK_CONTAINER (notebook);
child_allocation.x = container->border_width;
child_allocation.y = container->border_width;
switch (notebook->tab_pos)
{
case GTK_POS_BOTTOM:
child_allocation.y = (allocation->height -
notebook->cur_page->requisition.height -
container->border_width);
case GTK_POS_TOP:
child_allocation.height = notebook->cur_page->requisition.height;
break;
case GTK_POS_RIGHT:
child_allocation.x = (allocation->width -
notebook->cur_page->requisition.width -
container->border_width);
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 = notebook->children;
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
while (children)
{
page = children->data;
children = children->next;
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 + ARROW_SPACING + ARROW_SIZE));
x = allocation->width - 2 * ARROW_SIZE - ARROW_SPACING - container->border_width;
page = notebook->children->data;
if (notebook->tab_pos == GTK_POS_TOP)
y = container->border_width + (page->requisition.height - ARROW_SIZE) / 2;
else
y = (allocation->height - container->border_width -
ARROW_SIZE - (page->requisition.height - ARROW_SIZE) / 2);
}
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
while (children)
{
page = children->data;
children = children->next;
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 -
ARROW_SIZE - ARROW_SPACING - TAB_OVERLAP -
2 * container->border_width - page->requisition.height);
y = allocation->height - container->border_width - ARROW_SIZE;
page = notebook->children->data;
if (notebook->tab_pos == GTK_POS_LEFT)
x = (container->border_width +
(page->requisition.width - (2 * ARROW_SIZE - ARROW_SPACING)) / 2);
else
x = (allocation->width - container->border_width -
(2 * ARROW_SIZE - ARROW_SPACING) -
(page->requisition.width - (2 * ARROW_SIZE - ARROW_SPACING)) / 2);
}
break;
}
if (showarrow) /* first_tab <- focus_tab */
{
children = focus_tab->prev;
while (children)
{
if (notebook->first_tab == children)
break;
children = children->prev;
}
if (!children)
notebook->first_tab = focus_tab;
else
gtk_notebook_calc_tabs (notebook, focus_tab->prev,
&(notebook->first_tab), &tab_space,
STEP_PREV);
if (tab_space <= 0)
{
notebook->first_tab = notebook->first_tab->next;
if (!notebook->first_tab)
notebook->first_tab = focus_tab;
last_child = focus_tab->next;
}
else /* focus_tab -> end */
{
if (!notebook->first_tab)
notebook->first_tab = notebook->children;
children = NULL;
gtk_notebook_calc_tabs (notebook, focus_tab->next,
&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,notebook->first_tab->prev,
&children, &tab_space, STEP_PREV);
if (children)
notebook->first_tab = children->next;
else
notebook->first_tab = notebook->children;
}
}
if (GTK_WIDGET_REALIZED (notebook))
{
gdk_window_move (notebook->panel, x, y);
gdk_window_show (notebook->panel);
}
if (tab_space < 0)
{
tab_space = -tab_space;
n = 0;
children = notebook->first_tab;
while (children != last_child)
{
children = children->next;
n++;
}
}
else
tab_space = 0;
children = notebook->children;
while (children != notebook->first_tab)
{
page = children->data;
children = children->next;
if (page->tab_label && GTK_WIDGET_MAPPED (page->tab_label))
gtk_widget_unmap (page->tab_label);
}
children = last_child;
while (children)
{
page = children->data;
children = children->next;
if (page->tab_label && GTK_WIDGET_MAPPED (page->tab_label))
gtk_widget_unmap (page->tab_label);
}
}
else /* !showarrow */
{
notebook->first_tab = notebook->children;
tab_space = 0;
if (GTK_WIDGET_REALIZED (notebook))
gdk_window_hide (notebook->panel);
}
children = notebook->first_tab;
}
else
children = notebook->children;
i = 1;
while (children != last_child)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
{
new_fill = (tab_space * i++) / n;
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
child_allocation.width = page->requisition.width + TAB_OVERLAP + new_fill - old_fill;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
child_allocation.height = page->requisition.height + TAB_OVERLAP + new_fill - old_fill;
break;
}
old_fill = new_fill;
gtk_notebook_page_allocate (notebook, page, &child_allocation);
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
child_allocation.x += child_allocation.width - TAB_OVERLAP;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
child_allocation.y += child_allocation.height - TAB_OVERLAP;
break;
}
if (GTK_WIDGET_REALIZED (notebook) &&
page->tab_label && !GTK_WIDGET_MAPPED (page->tab_label))
gtk_widget_map (page->tab_label);
}
}
}
static void
gtk_notebook_page_allocate (GtkNotebook *notebook,
GtkNotebookPage *page,
GtkAllocation *allocation)
{
GtkAllocation child_allocation;
gint xthickness, ythickness;
g_return_if_fail (notebook != NULL);
g_return_if_fail (page != NULL);
g_return_if_fail (allocation != NULL);
page->allocation = *allocation;
xthickness = GTK_WIDGET (notebook)->style->klass->xthickness;
ythickness = GTK_WIDGET (notebook)->style->klass->ythickness;
if (notebook->cur_page != page)
{
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
page->allocation.y += ythickness;
case GTK_POS_BOTTOM:
page->allocation.height -= ythickness;
break;
case GTK_POS_LEFT:
page->allocation.x += xthickness;
case GTK_POS_RIGHT:
page->allocation.width -= xthickness;
break;
}
}
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
child_allocation.x = xthickness + notebook->tab_border;
child_allocation.y = ythickness + notebook->tab_border + page->allocation.y;
child_allocation.width = page->allocation.width - child_allocation.x * 2;
child_allocation.height = page->allocation.height - ythickness - 2 * notebook->tab_border;
child_allocation.x += page->allocation.x;
break;
case GTK_POS_BOTTOM:
child_allocation.x = xthickness + notebook->tab_border;
child_allocation.width = page->allocation.width - child_allocation.x * 2;
child_allocation.height = page->allocation.height - ythickness - 2 * notebook->tab_border;
child_allocation.x += page->allocation.x;
child_allocation.y = page->allocation.y + notebook->tab_border;
break;
case GTK_POS_LEFT:
child_allocation.x = xthickness + notebook->tab_border + page->allocation.x;
child_allocation.y = ythickness + notebook->tab_border;
child_allocation.width = page->allocation.width - xthickness - 2 * notebook->tab_border;
child_allocation.height = page->allocation.height - child_allocation.y * 2;
child_allocation.y += page->allocation.y;
break;
case GTK_POS_RIGHT:
child_allocation.y = ythickness + notebook->tab_border;
child_allocation.width = page->allocation.width - xthickness - 2 * notebook->tab_border;
child_allocation.height = page->allocation.height - child_allocation.y * 2;
child_allocation.x = page->allocation.x + notebook->tab_border;
child_allocation.y += page->allocation.y;
break;
}
if (page->tab_label)
gtk_widget_size_allocate (page->tab_label, &child_allocation);
}
static void
gtk_notebook_menu_switch_page (GtkWidget *widget,
GtkNotebookPage *page)
{
GtkNotebook *notebook;
GList *children;
gint 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++;
}
gtk_signal_emit (GTK_OBJECT (notebook),
notebook_signals[SWITCH_PAGE],
page,
page_num);
}
static void
gtk_notebook_switch_page (GtkNotebook *notebook,
GtkNotebookPage *page,
gint page_num)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (page != NULL);
if (notebook->cur_page == page)
return;
gtk_signal_emit (GTK_OBJECT (notebook),
notebook_signals[SWITCH_PAGE],
page,
page_num);
}
static void
gtk_notebook_marshal_signal (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args)
{
GtkNotebookSignal rfunc;
rfunc = (GtkNotebookSignal) func;
(* rfunc) (object, GTK_VALUE_POINTER (args[0]), GTK_VALUE_INT (args[1]),
func_data);
}
static gint
gtk_notebook_focus (GtkContainer *container,
GtkDirectionType direction)
{
GtkNotebook *notebook;
GtkWidget *focus_child;
GtkNotebookPage *page = NULL;
GtkNotebookPage *old_page = NULL;
gint return_val;
g_return_val_if_fail (container != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (container), FALSE);
notebook = GTK_NOTEBOOK (container);
if (!GTK_WIDGET_SENSITIVE (container) || !notebook->children)
return FALSE;
focus_child = container->focus_child;
gtk_container_set_focus_child (container, NULL);
if (!notebook->show_tabs)
{
if (GTK_WIDGET_VISIBLE (notebook->cur_page->child))
{
if (GTK_IS_CONTAINER (notebook->cur_page->child))
{
if (gtk_container_focus
(GTK_CONTAINER (notebook->cur_page->child), direction))
return TRUE;
}
else if (GTK_WIDGET_CAN_FOCUS (notebook->cur_page->child))
{
if (!focus_child)
{
gtk_widget_grab_focus (notebook->cur_page->child);
return TRUE;
}
}
}
return FALSE;
}
if (notebook->focus_tab)
old_page = notebook->focus_tab->data;
return_val = FALSE;
if (focus_child && old_page && focus_child == old_page->child &&
notebook->child_has_focus)
{
if (GTK_WIDGET_VISIBLE (old_page->child))
{
if (GTK_IS_CONTAINER (old_page->child) &&
!GTK_WIDGET_HAS_FOCUS (old_page->child))
{
if (gtk_container_focus (GTK_CONTAINER (old_page->child),
direction))
return TRUE;
}
gtk_widget_grab_focus (GTK_WIDGET(notebook));
return TRUE;
}
return FALSE;
}
switch (direction)
{
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_RIGHT:
case GTK_DIR_DOWN:
if (!notebook->focus_tab)
notebook->focus_tab = notebook->children;
else
notebook->focus_tab = notebook->focus_tab->next;
if (!notebook->focus_tab)
{
gtk_notebook_focus_changed (notebook, old_page);
return FALSE;
}
page = notebook->focus_tab->data;
return_val = TRUE;
break;
case GTK_DIR_TAB_BACKWARD:
case GTK_DIR_LEFT:
case GTK_DIR_UP:
if (!notebook->focus_tab)
notebook->focus_tab = g_list_last (notebook->children);
else
notebook->focus_tab = notebook->focus_tab->prev;
if (!notebook->focus_tab)
{
gtk_notebook_focus_changed (notebook, old_page);
return FALSE;
}
page = notebook->focus_tab->data;
return_val = TRUE;
break;
}
if (return_val)
{
if (!GTK_WIDGET_HAS_FOCUS (container) )
gtk_widget_grab_focus (GTK_WIDGET (container));
if (GTK_WIDGET_MAPPED (page->tab_label))
gtk_notebook_focus_changed (notebook, old_page);
else
{
gtk_notebook_pages_allocate (notebook,
&(GTK_WIDGET (notebook)->allocation));
gtk_notebook_expose_tabs (notebook);
}
}
return return_val;
}
static gint
gtk_notebook_page_select (GtkNotebook *notebook)
{
g_return_val_if_fail (notebook != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), FALSE);
if (notebook->focus_tab)
{
GtkNotebookPage *page;
GList *children;
gint num;
page = notebook->focus_tab->data;
children = notebook->children;
num = 0;
while (children != notebook->focus_tab)
{
children = children->next;
num++;
}
gtk_notebook_switch_page (notebook, page, num);
if (GTK_WIDGET_VISIBLE (page->child))
{
if (GTK_IS_CONTAINER (page->child))
{
if (gtk_container_focus (GTK_CONTAINER (page->child),
GTK_DIR_TAB_FORWARD))
return TRUE;
}
else if (GTK_WIDGET_CAN_FOCUS (page->child))
{
gtk_widget_grab_focus (page->child);
return TRUE;
}
}
}
return FALSE;
}
static void
gtk_notebook_switch_focus_tab (GtkNotebook *notebook,
GList *new_child)
{
GtkNotebookPage *old_page = NULL;
GtkNotebookPage *page;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->focus_tab != new_child)
{
if (notebook->focus_tab)
old_page = notebook->focus_tab->data;
notebook->focus_tab = new_child;
page = notebook->focus_tab->data;
if (GTK_WIDGET_MAPPED (page->tab_label))
gtk_notebook_focus_changed (notebook, old_page);
else
{
gtk_notebook_pages_allocate (notebook,
&(GTK_WIDGET (notebook)->allocation));
gtk_notebook_expose_tabs (notebook);
}
}
}
static gint
gtk_notebook_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GtkNotebook *notebook;
GtkDirectionType direction = 0;
gint return_val;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
notebook = GTK_NOTEBOOK (widget);
return_val = TRUE;
if (!notebook->children || !notebook->show_tabs)
return FALSE;
switch (event->keyval)
{
case GDK_Up:
direction = GTK_DIR_UP;
break;
case GDK_Left:
direction = GTK_DIR_LEFT;
break;
case GDK_Down:
direction = GTK_DIR_DOWN;
break;
case GDK_Right:
direction = GTK_DIR_RIGHT;
break;
case GDK_Tab:
case GDK_ISO_Left_Tab:
if (event->state & GDK_SHIFT_MASK)
direction = GTK_DIR_TAB_BACKWARD;
else
direction = GTK_DIR_TAB_FORWARD;
break;
case GDK_Home:
gtk_notebook_switch_focus_tab (notebook, notebook->children);
return TRUE;
case GDK_End:
gtk_notebook_switch_focus_tab (notebook,
g_list_last (notebook->children));
return TRUE;
case GDK_Return:
case GDK_space:
gtk_notebook_page_select (GTK_NOTEBOOK (widget));
return TRUE;
default:
return_val = FALSE;
}
if (return_val)
return gtk_container_focus (GTK_CONTAINER (widget), direction);
return return_val;
}
void
gtk_notebook_set_tab_border (GtkNotebook *notebook,
gint tab_border)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->tab_border != tab_border && tab_border > 0)
{
notebook->tab_border = tab_border;
if (GTK_WIDGET_VISIBLE (notebook) && notebook->show_tabs)
gtk_widget_queue_resize (GTK_WIDGET (notebook));
}
}
static void
gtk_notebook_update_labels (GtkNotebook *notebook,
GList *list,
gint page_num)
{
GtkNotebookPage *page;
gchar string[32];
while (list)
{
page = list->data;
list = list->next;
sprintf (string, "Page %d", page_num);
if (notebook->show_tabs && page->default_tab)
gtk_label_set (GTK_LABEL (page->tab_label), string);
if (notebook->menu && page->default_menu)
{
if (GTK_IS_LABEL (page->tab_label))
gtk_label_set (GTK_LABEL (page->menu_label), GTK_LABEL (page->tab_label)->label);
else
gtk_label_set (GTK_LABEL (page->menu_label), string);
}
page_num++;
}
}
static void
gtk_notebook_menu_item_create (GtkNotebook *notebook,
GtkNotebookPage *page,
gint position)
{
GtkWidget *menu_item;
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_widget_freeze_accelerators (menu_item);
gtk_container_add (GTK_CONTAINER (menu_item), page->menu_label);
gtk_menu_insert (GTK_MENU (notebook->menu), menu_item, position);
gtk_signal_connect (GTK_OBJECT (menu_item), "activate",
GTK_SIGNAL_FUNC (gtk_notebook_menu_switch_page),
page);
gtk_widget_show (menu_item);
}
void
gtk_notebook_popup_enable (GtkNotebook *notebook)
{
GtkNotebookPage *page;
GList *children;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->menu)
return;
notebook->menu = gtk_menu_new ();
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
gtk_notebook_menu_item_create (notebook, page, -1);
}
gtk_notebook_update_labels (notebook, notebook->children,1);
gtk_menu_attach_to_widget (GTK_MENU (notebook->menu), GTK_WIDGET (notebook),
gtk_notebook_menu_detacher);
}
static void
gtk_notebook_menu_label_unparent (GtkWidget *widget,
gpointer data)
{
gtk_widget_unparent (GTK_BIN(widget)->child);
GTK_BIN(widget)->child = NULL;
}
void
gtk_notebook_popup_disable (GtkNotebook *notebook)
{
g_return_if_fail (notebook != NULL);
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);
}
static void
gtk_notebook_menu_detacher (GtkWidget *widget,
GtkMenu *menu)
{
GtkNotebook *notebook;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
notebook = GTK_NOTEBOOK (widget);
g_return_if_fail (notebook->menu == (GtkWidget*) menu);
notebook->menu = NULL;
}
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