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gtk2/gtk/gtkassistant.c
Matthias Clasen 781d94f141 Be more robust when removing the current page. (#499951, Andreas Sandberg) 
2008-01-07  Matthias Clasen  <mclasen@redhat.com>

        * gtk/gtkassistant.c (remove_page): Be more robust when removing
        the current page.  (#499951, Andreas Sandberg)



svn path=/trunk/; revision=19321
2008-01-08 03:50:29 +00:00

2369 lines
66 KiB
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/*
* GTK - The GIMP Toolkit
* Copyright (C) 1999 Red Hat, Inc.
* Copyright (C) 2002 Anders Carlsson <andersca@gnu.org>
* Copyright (C) 2003 Matthias Clasen <mclasen@redhat.com>
* Copyright (C) 2005 Carlos Garnacho Parro <carlosg@gnome.org>
*
* All rights reserved.
*
* 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.
*/
#include <config.h>
#include <atk/atk.h>
#include "gtkassistant.h"
#include "gtkaccessible.h"
#include "gtkbutton.h"
#include "gtkhbox.h"
#include "gtkhbbox.h"
#include "gtkimage.h"
#include "gtklabel.h"
#include "gtksizegroup.h"
#include "gtkstock.h"
#include "gtkintl.h"
#include "gtkprivate.h"
#include "gtkalias.h"
#define GTK_ASSISTANT_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_TYPE_ASSISTANT, GtkAssistantPrivate))
#define HEADER_SPACING 12
#define ACTION_AREA_SPACING 12
typedef struct _GtkAssistantPage GtkAssistantPage;
struct _GtkAssistantPage
{
GtkWidget *page;
GtkAssistantPageType type;
gboolean complete;
GtkWidget *title;
GdkPixbuf *header_image;
GdkPixbuf *sidebar_image;
};
struct _GtkAssistantPrivate
{
GtkWidget *header_image;
GtkWidget *sidebar_image;
GtkWidget *action_area;
GList *pages;
GtkAssistantPage *current_page;
GSList *visited_pages;
GtkSizeGroup *size_group;
GtkAssistantPageFunc forward_function;
gpointer forward_function_data;
GDestroyNotify forward_data_destroy;
};
static void gtk_assistant_class_init (GtkAssistantClass *class);
static void gtk_assistant_init (GtkAssistant *assistant);
static void gtk_assistant_destroy (GtkObject *object);
static void gtk_assistant_style_set (GtkWidget *widget,
GtkStyle *old_style);
static void gtk_assistant_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_assistant_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_assistant_map (GtkWidget *widget);
static void gtk_assistant_unmap (GtkWidget *widget);
static gboolean gtk_assistant_delete_event (GtkWidget *widget,
GdkEventAny *event);
static gboolean gtk_assistant_expose (GtkWidget *widget,
GdkEventExpose *event);
static gboolean gtk_assistant_focus (GtkWidget *widget,
GtkDirectionType direction);
static void gtk_assistant_add (GtkContainer *container,
GtkWidget *page);
static void gtk_assistant_remove (GtkContainer *container,
GtkWidget *page);
static void gtk_assistant_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static void gtk_assistant_set_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_assistant_get_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
GValue *value,
GParamSpec *pspec);
static AtkObject *gtk_assistant_get_accessible (GtkWidget *widget);
enum
{
CHILD_PROP_0,
CHILD_PROP_PAGE_TYPE,
CHILD_PROP_PAGE_TITLE,
CHILD_PROP_PAGE_HEADER_IMAGE,
CHILD_PROP_PAGE_SIDEBAR_IMAGE,
CHILD_PROP_PAGE_COMPLETE
};
enum
{
CANCEL,
PREPARE,
APPLY,
CLOSE,
LAST_SIGNAL
};
static guint signals [LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE (GtkAssistant, gtk_assistant, GTK_TYPE_WINDOW)
static void
gtk_assistant_class_init (GtkAssistantClass *class)
{
GObjectClass *gobject_class;
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
gobject_class = (GObjectClass *) class;
object_class = (GtkObjectClass *) class;
widget_class = (GtkWidgetClass *) class;
container_class = (GtkContainerClass *) class;
object_class->destroy = gtk_assistant_destroy;
widget_class->style_set = gtk_assistant_style_set;
widget_class->size_request = gtk_assistant_size_request;
widget_class->size_allocate = gtk_assistant_size_allocate;
widget_class->map = gtk_assistant_map;
widget_class->unmap = gtk_assistant_unmap;
widget_class->delete_event = gtk_assistant_delete_event;
widget_class->expose_event = gtk_assistant_expose;
widget_class->focus = gtk_assistant_focus;
widget_class->get_accessible = gtk_assistant_get_accessible;
container_class->add = gtk_assistant_add;
container_class->remove = gtk_assistant_remove;
container_class->forall = gtk_assistant_forall;
container_class->set_child_property = gtk_assistant_set_child_property;
container_class->get_child_property = gtk_assistant_get_child_property;
/**
* GtkAssistant::cancel:
* @assistant: the #GtkAssistant
*
* The ::cancel signal is emitted when then the cancel button is clicked.
*
* Since: 2.10
*/
signals[CANCEL] =
g_signal_new (I_("cancel"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkAssistantClass, cancel),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkAssistant::prepare:
* @assistant: the #GtkAssistant
* @page: the current page
*
* The ::prepared signal is emitted when a new page is set as the assistant's
* current page, before making the new page visible. A handler for this signal
* can do any preparation which are necessary before showing @page.
*
* Since: 2.10
*/
signals[PREPARE] =
g_signal_new (I_("prepare"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkAssistantClass, prepare),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1, GTK_TYPE_WIDGET);
/**
* GtkAssistant::apply:
* @assistant: the @GtkAssistant
*
* The ::apply signal is emitted when the apply button is clicked. The default
* behavior of the #GtkAssistant is to switch to the page after the current page,
* unless the current page is the last one.
*
* A handler for the ::apply signal should carry out the actions for which the
* wizard has collected data. If the action takes a long time to complete, you
* might consider to put a page of type GTK_ASSISTANT_PAGE_PROGRESS after the
* confirmation page and handle this operation within the ::prepare signal of
* the progress page.
*
* Since: 2.10
*/
signals[APPLY] =
g_signal_new (I_("apply"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkAssistantClass, apply),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkAssistant::close:
* @assistant: the #GtkAssistant
*
* The ::close signal is emitted either when the close button of
* a summary page is clicked, or when the apply button in the last
* page in the flow (of type GTK_ASSISTANT_PAGE_CONFIRM) is clicked.
*
* Since: 2.10
*/
signals[CLOSE] =
g_signal_new (I_("close"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkAssistantClass, close),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("header-padding",
P_("Header Padding"),
P_("Number of pixels around the header."),
0,
G_MAXINT,
6,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("content-padding",
P_("Content Padding"),
P_("Number of pixels around the content pages."),
0,
G_MAXINT,
1,
GTK_PARAM_READABLE));
/**
* GtkAssistant:page-type:
*
* The type of the assistant page.
*
* Since: 2.10
*/
gtk_container_class_install_child_property (container_class,
CHILD_PROP_PAGE_TYPE,
g_param_spec_enum ("page-type",
P_("Page type"),
P_("The type of the assistant page"),
GTK_TYPE_ASSISTANT_PAGE_TYPE,
GTK_ASSISTANT_PAGE_CONTENT,
GTK_PARAM_READWRITE));
/**
* GtkAssistant:title:
*
* The title that is displayed in the page header.
*
* If title and header-image are both %NULL, no header is displayed.
*
* Since: 2.10
*/
gtk_container_class_install_child_property (container_class,
CHILD_PROP_PAGE_TITLE,
g_param_spec_string ("title",
P_("Page title"),
P_("The title of the assistant page"),
NULL,
GTK_PARAM_READWRITE));
/**
* GtkAssistant:header-image:
*
* The image that is displayed next to the title in the page header.
*
* If title and header-image are both %NULL, no header is displayed.
*
* Since: 2.10
*/
gtk_container_class_install_child_property (container_class,
CHILD_PROP_PAGE_HEADER_IMAGE,
g_param_spec_object ("header-image",
P_("Header image"),
P_("Header image for the assistant page"),
GDK_TYPE_PIXBUF,
GTK_PARAM_READWRITE));
/**
* GtkAssistant:header-image:
*
* The image that is displayed next to the page.
*
* Set this to %NULL to make the sidebar disappear.
*
* Since: 2.10
*/
gtk_container_class_install_child_property (container_class,
CHILD_PROP_PAGE_SIDEBAR_IMAGE,
g_param_spec_object ("sidebar-image",
P_("Sidebar image"),
P_("Sidebar image for the assistant page"),
GDK_TYPE_PIXBUF,
GTK_PARAM_READWRITE));
/**
* GtkAssistant:complete:
*
* Setting the "complete" child property to %TRUE marks a page as complete
* (i.e.: all the required fields are filled out). GTK+ uses this information
* to control the sensitivity of the navigation buttons.
*
* Since: 2.10
**/
gtk_container_class_install_child_property (container_class,
CHILD_PROP_PAGE_COMPLETE,
g_param_spec_boolean ("complete",
P_("Page complete"),
P_("Whether all required fields on the page have been filled out"),
FALSE,
G_PARAM_READWRITE));
g_type_class_add_private (gobject_class, sizeof (GtkAssistantPrivate));
}
static gint
default_forward_function (gint current_page, gpointer data)
{
GtkAssistant *assistant;
GtkAssistantPrivate *priv;
GtkAssistantPage *page_info;
GList *page_node;
assistant = GTK_ASSISTANT (data);
priv = assistant->priv;
page_node = g_list_nth (priv->pages, ++current_page);
if (!page_node)
return -1;
page_info = (GtkAssistantPage *) page_node->data;
while (page_node && !GTK_WIDGET_VISIBLE (page_info->page))
{
page_node = page_node->next;
current_page++;
if (page_node)
page_info = (GtkAssistantPage *) page_node->data;
}
return current_page;
}
static void
compute_last_button_state (GtkAssistant *assistant)
{
GtkAssistantPrivate *priv = assistant->priv;
GtkAssistantPage *page_info, *current_page_info;
gint count, page_num, n_pages;
count = 0;
page_num = gtk_assistant_get_current_page (assistant);
n_pages = gtk_assistant_get_n_pages (assistant);
current_page_info = page_info = g_list_nth_data (priv->pages, page_num);
while (page_num >= 0 && page_num < n_pages &&
page_info->type == GTK_ASSISTANT_PAGE_CONTENT &&
(count == 0 || page_info->complete) &&
count < n_pages)
{
page_num = (priv->forward_function) (page_num, priv->forward_function_data);
page_info = g_list_nth_data (priv->pages, page_num);
count++;
g_assert (page_info);
}
/* make the last button visible if we can skip multiple
* pages and end on a confirmation or summary page
*/
if (count > 1 &&
(page_info->type == GTK_ASSISTANT_PAGE_CONFIRM ||
page_info->type == GTK_ASSISTANT_PAGE_SUMMARY))
{
gtk_widget_show (assistant->last);
gtk_widget_set_sensitive (assistant->last,
current_page_info->complete);
}
else
gtk_widget_hide (assistant->last);
}
static void
set_assistant_header_image (GtkAssistant *assistant)
{
GtkAssistantPrivate *priv = assistant->priv;
gtk_image_set_from_pixbuf (GTK_IMAGE (priv->header_image),
priv->current_page->header_image);
}
static void
set_assistant_sidebar_image (GtkAssistant *assistant)
{
GtkAssistantPrivate *priv = assistant->priv;
gtk_image_set_from_pixbuf (GTK_IMAGE (priv->sidebar_image),
priv->current_page->sidebar_image);
if (priv->current_page->sidebar_image)
gtk_widget_show (priv->sidebar_image);
else
gtk_widget_hide (priv->sidebar_image);
}
static void
set_assistant_buttons_state (GtkAssistant *assistant)
{
GtkAssistantPrivate *priv = assistant->priv;
if (!priv->current_page)
return;
switch (priv->current_page->type)
{
case GTK_ASSISTANT_PAGE_INTRO:
gtk_widget_set_sensitive (assistant->cancel, TRUE);
gtk_widget_set_sensitive (assistant->forward, priv->current_page->complete);
gtk_widget_show (assistant->cancel);
gtk_widget_show (assistant->forward);
gtk_widget_hide (assistant->back);
gtk_widget_hide (assistant->apply);
gtk_widget_hide (assistant->close);
compute_last_button_state (assistant);
break;
case GTK_ASSISTANT_PAGE_CONFIRM:
gtk_widget_set_sensitive (assistant->cancel, TRUE);
gtk_widget_set_sensitive (assistant->back, TRUE);
gtk_widget_set_sensitive (assistant->apply, priv->current_page->complete);
gtk_widget_show (assistant->cancel);
gtk_widget_show (assistant->back);
gtk_widget_show (assistant->apply);
gtk_widget_hide (assistant->forward);
gtk_widget_hide (assistant->close);
gtk_widget_hide (assistant->last);
break;
case GTK_ASSISTANT_PAGE_CONTENT:
gtk_widget_set_sensitive (assistant->cancel, TRUE);
gtk_widget_set_sensitive (assistant->back, TRUE);
gtk_widget_set_sensitive (assistant->forward, priv->current_page->complete);
gtk_widget_show (assistant->cancel);
gtk_widget_show (assistant->back);
gtk_widget_show (assistant->forward);
gtk_widget_hide (assistant->apply);
gtk_widget_hide (assistant->close);
compute_last_button_state (assistant);
break;
case GTK_ASSISTANT_PAGE_SUMMARY:
gtk_widget_set_sensitive (assistant->close, TRUE);
gtk_widget_show (assistant->close);
gtk_widget_hide (assistant->cancel);
gtk_widget_hide (assistant->back);
gtk_widget_hide (assistant->forward);
gtk_widget_hide (assistant->apply);
gtk_widget_hide (assistant->last);
break;
case GTK_ASSISTANT_PAGE_PROGRESS:
gtk_widget_set_sensitive (assistant->cancel, priv->current_page->complete);
gtk_widget_set_sensitive (assistant->back, priv->current_page->complete);
gtk_widget_set_sensitive (assistant->forward, priv->current_page->complete);
gtk_widget_show (assistant->cancel);
gtk_widget_show (assistant->back);
gtk_widget_show (assistant->forward);
gtk_widget_hide (assistant->apply);
gtk_widget_hide (assistant->close);
gtk_widget_hide (assistant->last);
break;
default:
g_assert_not_reached ();
}
/* this is quite general, we don't want to
* go back if it's the first page */
if (!priv->visited_pages)
gtk_widget_hide (assistant->back);
}
static void
set_current_page (GtkAssistant *assistant,
GtkAssistantPage *page)
{
GtkAssistantPrivate *priv = assistant->priv;
GtkAssistantPage *old_page;
if (priv->current_page &&
GTK_WIDGET_DRAWABLE (priv->current_page->page))
old_page = priv->current_page;
else
old_page = NULL;
priv->current_page = page;
set_assistant_buttons_state (assistant);
set_assistant_header_image (assistant);
set_assistant_sidebar_image (assistant);
g_signal_emit (assistant, signals [PREPARE], 0, priv->current_page->page);
if (GTK_WIDGET_VISIBLE (priv->current_page->page) && GTK_WIDGET_MAPPED (assistant))
{
gtk_widget_set_child_visible (priv->current_page->page, TRUE);
gtk_widget_map (priv->current_page->page);
gtk_widget_map (priv->current_page->title);
}
if (old_page && GTK_WIDGET_MAPPED (old_page->page))
{
gtk_widget_set_child_visible (old_page->page, FALSE);
gtk_widget_unmap (old_page->page);
gtk_widget_unmap (old_page->title);
}
gtk_widget_queue_resize (GTK_WIDGET (assistant));
}
static gint
compute_next_step (GtkAssistant *assistant)
{
GtkAssistantPrivate *priv = assistant->priv;
GtkAssistantPage *page_info;
gint current_page, n_pages, next_page;
current_page = gtk_assistant_get_current_page (assistant);
page_info = priv->current_page;
n_pages = gtk_assistant_get_n_pages (assistant);
next_page = (priv->forward_function) (current_page,
priv->forward_function_data);
if (next_page >= 0 && next_page < n_pages)
{
priv->visited_pages = g_slist_prepend (priv->visited_pages, page_info);
set_current_page (assistant, g_list_nth_data (priv->pages, next_page));
return TRUE;
}
return FALSE;
}
static void
on_assistant_close (GtkWidget *widget, GtkAssistant *assistant)
{
g_signal_emit (assistant, signals [CLOSE], 0, NULL);
}
static void
on_assistant_apply (GtkWidget *widget, GtkAssistant *assistant)
{
GtkAssistantPrivate *priv = assistant->priv;
gboolean success;
success = compute_next_step (assistant);
g_signal_emit (assistant, signals [APPLY], 0, priv->current_page->page);
/* if the assistant hasn't switched to another page, just emit
* the CLOSE signal, it't the last page in the assistant flow
*/
if (!success)
g_signal_emit (assistant, signals [CLOSE], 0, priv->current_page->page);
}
static void
on_assistant_forward (GtkWidget *widget, GtkAssistant *assistant)
{
if (!compute_next_step (assistant))
g_critical ("Page flow is broken, you may want to end it with a page of "
"type GTK_ASSISTANT_PAGE_CONFIRM or GTK_ASSISTANT_PAGE_SUMMARY");
}
static void
on_assistant_back (GtkWidget *widget, GtkAssistant *assistant)
{
GtkAssistantPrivate *priv = assistant->priv;
GtkAssistantPage *page_info;
GSList *page_node;
/* skip the progress pages when going back */
do
{
page_node = priv->visited_pages;
g_return_if_fail (page_node != NULL);
priv->visited_pages = priv->visited_pages->next;
page_info = (GtkAssistantPage *) page_node->data;
g_slist_free_1 (page_node);
}
while (page_info->type == GTK_ASSISTANT_PAGE_PROGRESS ||
!GTK_WIDGET_VISIBLE (page_info->page));
set_current_page (assistant, page_info);
}
static void
on_assistant_cancel (GtkWidget *widget, GtkAssistant *assistant)
{
g_signal_emit (assistant, signals [CANCEL], 0, NULL);
}
static void
on_assistant_last (GtkWidget *widget, GtkAssistant *assistant)
{
GtkAssistantPrivate *priv = assistant->priv;
while (priv->current_page->type == GTK_ASSISTANT_PAGE_CONTENT &&
priv->current_page->complete)
compute_next_step (assistant);
}
static gboolean
alternative_button_order (GtkAssistant *assistant)
{
GtkSettings *settings;
GdkScreen *screen;
gboolean result;
screen = gtk_widget_get_screen (GTK_WIDGET (assistant));
settings = gtk_settings_get_for_screen (screen);
g_object_get (settings,
"gtk-alternative-button-order", &result,
NULL);
return result;
}
static void
gtk_assistant_init (GtkAssistant *assistant)
{
GtkAssistantPrivate *priv;
priv = assistant->priv = GTK_ASSISTANT_GET_PRIVATE (assistant);
gtk_container_set_reallocate_redraws (GTK_CONTAINER (assistant), TRUE);
gtk_widget_push_composite_child ();
/* Header */
priv->header_image = gtk_image_new ();
gtk_misc_set_alignment (GTK_MISC (priv->header_image), 1., 0.5);
gtk_widget_set_parent (priv->header_image, GTK_WIDGET (assistant));
gtk_widget_show (priv->header_image);
/* Sidebar */
priv->sidebar_image = gtk_image_new ();
gtk_misc_set_alignment (GTK_MISC (priv->sidebar_image), 0., 0.);
gtk_widget_set_parent (priv->sidebar_image, GTK_WIDGET (assistant));
gtk_widget_show (priv->sidebar_image);
/* Action area */
priv->action_area = gtk_hbox_new (FALSE, 6);
assistant->close = gtk_button_new_from_stock (GTK_STOCK_CLOSE);
assistant->apply = gtk_button_new_from_stock (GTK_STOCK_APPLY);
assistant->forward = gtk_button_new_from_stock (GTK_STOCK_GO_FORWARD);
assistant->back = gtk_button_new_from_stock (GTK_STOCK_GO_BACK);
assistant->cancel = gtk_button_new_from_stock (GTK_STOCK_CANCEL);
assistant->last = gtk_button_new_from_stock (GTK_STOCK_GOTO_LAST);
priv->size_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
gtk_size_group_add_widget (priv->size_group, assistant->close);
gtk_size_group_add_widget (priv->size_group, assistant->apply);
gtk_size_group_add_widget (priv->size_group, assistant->forward);
gtk_size_group_add_widget (priv->size_group, assistant->back);
gtk_size_group_add_widget (priv->size_group, assistant->cancel);
gtk_size_group_add_widget (priv->size_group, assistant->last);
if (!alternative_button_order (assistant))
{
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->apply, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->forward, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->back, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->last, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->cancel, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->close, FALSE, FALSE, 0);
}
else
{
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->close, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->cancel, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->apply, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->forward, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->back, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (priv->action_area), assistant->last, FALSE, FALSE, 0);
}
gtk_widget_set_parent (priv->action_area, GTK_WIDGET (assistant));
gtk_widget_show (assistant->forward);
gtk_widget_show (assistant->back);
gtk_widget_show (assistant->cancel);
gtk_widget_show (priv->action_area);
gtk_widget_pop_composite_child ();
priv->pages = NULL;
priv->current_page = NULL;
priv->visited_pages = NULL;
priv->forward_function = default_forward_function;
priv->forward_function_data = assistant;
priv->forward_data_destroy = NULL;
g_signal_connect (G_OBJECT (assistant->close), "clicked",
G_CALLBACK (on_assistant_close), assistant);
g_signal_connect (G_OBJECT (assistant->apply), "clicked",
G_CALLBACK (on_assistant_apply), assistant);
g_signal_connect (G_OBJECT (assistant->forward), "clicked",
G_CALLBACK (on_assistant_forward), assistant);
g_signal_connect (G_OBJECT (assistant->back), "clicked",
G_CALLBACK (on_assistant_back), assistant);
g_signal_connect (G_OBJECT (assistant->cancel), "clicked",
G_CALLBACK (on_assistant_cancel), assistant);
g_signal_connect (G_OBJECT (assistant->last), "clicked",
G_CALLBACK (on_assistant_last), assistant);
}
static void
gtk_assistant_set_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
switch (property_id)
{
case CHILD_PROP_PAGE_TYPE:
gtk_assistant_set_page_type (GTK_ASSISTANT (container), child,
g_value_get_enum (value));
break;
case CHILD_PROP_PAGE_TITLE:
gtk_assistant_set_page_title (GTK_ASSISTANT (container), child,
g_value_get_string (value));
break;
case CHILD_PROP_PAGE_HEADER_IMAGE:
gtk_assistant_set_page_header_image (GTK_ASSISTANT (container), child,
g_value_get_object (value));
break;
case CHILD_PROP_PAGE_SIDEBAR_IMAGE:
gtk_assistant_set_page_side_image (GTK_ASSISTANT (container), child,
g_value_get_object (value));
break;
case CHILD_PROP_PAGE_COMPLETE:
gtk_assistant_set_page_complete (GTK_ASSISTANT (container), child,
g_value_get_boolean (value));
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
break;
}
}
static void
gtk_assistant_get_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
switch (property_id)
{
case CHILD_PROP_PAGE_TYPE:
g_value_set_enum (value,
gtk_assistant_get_page_type (GTK_ASSISTANT (container), child));
break;
case CHILD_PROP_PAGE_TITLE:
g_value_set_string (value,
gtk_assistant_get_page_title (GTK_ASSISTANT (container), child));
break;
case CHILD_PROP_PAGE_HEADER_IMAGE:
g_value_set_object (value,
gtk_assistant_get_page_header_image (GTK_ASSISTANT (container), child));
break;
case CHILD_PROP_PAGE_SIDEBAR_IMAGE:
g_value_set_object (value,
gtk_assistant_get_page_side_image (GTK_ASSISTANT (container), child));
break;
case CHILD_PROP_PAGE_COMPLETE:
g_value_set_boolean (value,
gtk_assistant_get_page_complete (GTK_ASSISTANT (container), child));
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
break;
}
}
static void
on_page_notify_visibility (GtkWidget *widget,
GParamSpec *arg,
gpointer data)
{
GtkAssistant *assistant = GTK_ASSISTANT (data);
/* update buttons state, flow may have changed */
if (GTK_WIDGET_MAPPED (assistant))
set_assistant_buttons_state (assistant);
}
static void
remove_page (GtkAssistant *assistant,
GList *element)
{
GtkAssistantPrivate *priv = assistant->priv;
GtkAssistantPage *page_info;
GList *page_node;
page_info = element->data;
/* If this is the current page, we need to switch away. */
if (page_info == priv->current_page)
{
if (!compute_next_step (assistant))
{
/* The best we can do at this point is probably to pick the first
* visible page.
*/
page_node = priv->pages;
while (page_node && !GTK_WIDGET_VISIBLE (((GtkAssistantPage *) page_node->data)->page))
page_node = page_node->next;
if (page_node == element)
page_node = page_node->next;
if (page_node)
priv->current_page = page_node->data;
else
priv->current_page = NULL;
}
}
priv->pages = g_list_remove_link (priv->pages, element);
priv->visited_pages = g_slist_remove_all (priv->visited_pages, page_info);
g_signal_handlers_disconnect_by_func (page_info->page, on_page_notify_visibility, assistant);
gtk_widget_unparent (page_info->page);
if (page_info->header_image)
g_object_unref (page_info->header_image);
if (page_info->sidebar_image)
g_object_unref (page_info->sidebar_image);
gtk_widget_destroy (page_info->title);
g_free (page_info);
g_list_free_1 (element);
}
static void
gtk_assistant_destroy (GtkObject *object)
{
GtkAssistant *assistant = GTK_ASSISTANT (object);
GtkAssistantPrivate *priv = assistant->priv;
if (priv->header_image)
{
gtk_widget_destroy (priv->header_image);
priv->header_image = NULL;
}
if (priv->sidebar_image)
{
gtk_widget_destroy (priv->sidebar_image);
priv->sidebar_image = NULL;
}
if (priv->action_area)
{
gtk_widget_destroy (priv->action_area);
priv->action_area = NULL;
}
if (priv->size_group)
{
g_object_unref (priv->size_group);
priv->size_group = NULL;
}
if (priv->forward_function)
{
if (priv->forward_function_data &&
priv->forward_data_destroy)
priv->forward_data_destroy (priv->forward_function_data);
priv->forward_function = NULL;
priv->forward_function_data = NULL;
priv->forward_data_destroy = NULL;
}
if (priv->visited_pages)
{
g_slist_free (priv->visited_pages);
priv->visited_pages = NULL;
}
/* We set current to NULL so that the remove code doesn't try
* to do anything funny */
priv->current_page = NULL;
while (priv->pages)
remove_page (GTK_ASSISTANT (object), priv->pages);
GTK_OBJECT_CLASS (gtk_assistant_parent_class)->destroy (object);
}
static GList*
find_page (GtkAssistant *assistant,
GtkWidget *page)
{
GtkAssistantPrivate *priv = assistant->priv;
GList *child = priv->pages;
while (child)
{
GtkAssistantPage *page_info = child->data;
if (page_info->page == page)
return child;
child = child->next;
}
return NULL;
}
static void
set_title_colors (GtkWidget *assistant,
GtkWidget *title_label)
{
GtkStyle *style;
gtk_widget_ensure_style (assistant);
style = gtk_widget_get_style (assistant);
/* change colors schema, for making the header text visible */
gtk_widget_modify_bg (title_label, GTK_STATE_NORMAL, &style->bg[GTK_STATE_SELECTED]);
gtk_widget_modify_fg (title_label, GTK_STATE_NORMAL, &style->fg[GTK_STATE_SELECTED]);
}
static void
set_title_font (GtkWidget *assistant,
GtkWidget *title_label)
{
PangoFontDescription *desc;
gint size;
desc = pango_font_description_new ();
size = pango_font_description_get_size (assistant->style->font_desc);
pango_font_description_set_weight (desc, PANGO_WEIGHT_ULTRABOLD);
pango_font_description_set_size (desc, size * PANGO_SCALE_XX_LARGE);
gtk_widget_modify_font (title_label, desc);
pango_font_description_free (desc);
}
static void
gtk_assistant_style_set (GtkWidget *widget,
GtkStyle *old_style)
{
GtkAssistant *assistant = GTK_ASSISTANT (widget);
GtkAssistantPrivate *priv = assistant->priv;
GList *list;
list = priv->pages;
while (list)
{
GtkAssistantPage *page = list->data;
set_title_colors (widget, page->title);
set_title_font (widget, page->title);
list = list->next;
}
}
static void
gtk_assistant_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkAssistant *assistant = GTK_ASSISTANT (widget);
GtkAssistantPrivate *priv = assistant->priv;
GtkRequisition child_requisition;
gint header_padding, content_padding;
gint width, height, header_width, header_height;
GList *list;
gtk_widget_style_get (widget,
"header-padding", &header_padding,
"content-padding", &content_padding,
NULL);
width = height = 0;
header_width = header_height = 0;
list = priv->pages;
while (list)
{
GtkAssistantPage *page = list->data;
gint w, h;
gtk_widget_size_request (page->page, &child_requisition);
width = MAX (width, child_requisition.width);
height = MAX (height, child_requisition.height);
gtk_widget_size_request (page->title, &child_requisition);
w = child_requisition.width;
h = child_requisition.height;
if (page->header_image)
{
w += gdk_pixbuf_get_width (page->header_image) + HEADER_SPACING;
h = MAX (h, gdk_pixbuf_get_height (page->header_image));
}
header_width = MAX (header_width, w);
header_height = MAX (header_height, h);
list = list->next;
}
gtk_widget_size_request (priv->sidebar_image, &child_requisition);
width += child_requisition.width;
height = MAX (height, child_requisition.height);
gtk_widget_set_size_request (priv->header_image, header_width, header_height);
gtk_widget_size_request (priv->header_image, &child_requisition);
width = MAX (width, header_width) + 2 * header_padding;
height += header_height + 2 * header_padding;
gtk_widget_size_request (priv->action_area, &child_requisition);
width = MAX (width, child_requisition.width);
height += child_requisition.height + ACTION_AREA_SPACING;
width += GTK_CONTAINER (widget)->border_width * 2 + content_padding * 2;
height += GTK_CONTAINER (widget)->border_width * 2 + content_padding * 2;
requisition->width = width;
requisition->height = height;
}
static void
gtk_assistant_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkAssistant *assistant = GTK_ASSISTANT (widget);
GtkAssistantPrivate *priv = assistant->priv;
GtkRequisition header_requisition;
GtkAllocation child_allocation, header_allocation;
gint header_padding, content_padding;
gboolean rtl;
GList *pages;
rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
pages = priv->pages;
gtk_widget_style_get (widget,
"header-padding", &header_padding,
"content-padding", &content_padding,
NULL);
widget->allocation = *allocation;
/* Header */
gtk_widget_get_child_requisition (priv->header_image, &header_requisition);
header_allocation.x = allocation->x + GTK_CONTAINER (widget)->border_width + header_padding;
header_allocation.y = allocation->y + GTK_CONTAINER (widget)->border_width + header_padding;
header_allocation.width = allocation->width - 2 * GTK_CONTAINER (widget)->border_width - 2 * header_padding;
header_allocation.height = header_requisition.height;
gtk_widget_size_allocate (priv->header_image, &header_allocation);
/* Action area */
child_allocation.x = allocation->x + GTK_CONTAINER (widget)->border_width;
child_allocation.y = allocation->y + allocation->height -
GTK_CONTAINER (widget)->border_width - priv->action_area->requisition.height;
child_allocation.width = allocation->width - 2 * GTK_CONTAINER (widget)->border_width;
child_allocation.height = priv->action_area->requisition.height;
gtk_widget_size_allocate (priv->action_area, &child_allocation);
/* Sidebar */
if (rtl)
child_allocation.x = allocation->x + allocation->width -
GTK_CONTAINER (widget)->border_width - priv->sidebar_image->requisition.width;
else
child_allocation.x = allocation->x + GTK_CONTAINER (widget)->border_width;
child_allocation.y = allocation->y + GTK_CONTAINER (widget)->border_width +
priv->header_image->allocation.height + 2 * header_padding;
child_allocation.width = priv->sidebar_image->requisition.width;
child_allocation.height = allocation->height - 2 * GTK_CONTAINER (widget)->border_width -
priv->header_image->allocation.height - 2 * header_padding - priv->action_area->allocation.height;
gtk_widget_size_allocate (priv->sidebar_image, &child_allocation);
/* Pages */
child_allocation.x = allocation->x + GTK_CONTAINER (widget)->border_width + content_padding;
child_allocation.y = allocation->y + GTK_CONTAINER (widget)->border_width +
priv->header_image->allocation.height + 2 * header_padding + content_padding;
child_allocation.width = allocation->width - 2 * GTK_CONTAINER (widget)->border_width - 2 * content_padding;
child_allocation.height = allocation->height - 2 * GTK_CONTAINER (widget)->border_width -
priv->header_image->allocation.height - 2 * header_padding - ACTION_AREA_SPACING - priv->action_area->allocation.height - 2 * content_padding;
if (GTK_WIDGET_VISIBLE (priv->sidebar_image))
{
if (!rtl)
child_allocation.x += priv->sidebar_image->allocation.width;
child_allocation.width -= priv->sidebar_image->allocation.width;
}
while (pages)
{
GtkAssistantPage *page = pages->data;
gtk_widget_size_allocate (page->page, &child_allocation);
gtk_widget_size_allocate (page->title, &header_allocation);
pages = pages->next;
}
}
static void
gtk_assistant_map (GtkWidget *widget)
{
GtkAssistant *assistant = GTK_ASSISTANT (widget);
GtkAssistantPrivate *priv = assistant->priv;
GList *page_node;
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
gtk_widget_map (priv->header_image);
gtk_widget_map (priv->action_area);
if (GTK_WIDGET_VISIBLE (priv->sidebar_image) &&
!GTK_WIDGET_MAPPED (priv->sidebar_image))
gtk_widget_map (priv->sidebar_image);
/* if there's no default page, pick the first one */
if (!priv->current_page && priv->pages)
{
page_node = priv->pages;
while (page_node && !GTK_WIDGET_VISIBLE (((GtkAssistantPage *) page_node->data)->page))
page_node = page_node->next;
if (page_node)
priv->current_page = page_node->data;
}
if (priv->current_page &&
GTK_WIDGET_VISIBLE (priv->current_page->page) &&
!GTK_WIDGET_MAPPED (priv->current_page->page))
{
set_assistant_buttons_state ((GtkAssistant *) widget);
set_assistant_header_image ((GtkAssistant*) widget);
set_assistant_sidebar_image ((GtkAssistant*) widget);
g_signal_emit (widget, signals [PREPARE], 0, priv->current_page->page);
gtk_widget_set_child_visible (priv->current_page->page, TRUE);
gtk_widget_map (priv->current_page->page);
gtk_widget_map (priv->current_page->title);
}
GTK_WIDGET_CLASS (gtk_assistant_parent_class)->map (widget);
}
static void
gtk_assistant_unmap (GtkWidget *widget)
{
GtkAssistant *assistant = GTK_ASSISTANT (widget);
GtkAssistantPrivate *priv = assistant->priv;
GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
gtk_widget_unmap (priv->header_image);
gtk_widget_unmap (priv->action_area);
if (GTK_WIDGET_DRAWABLE (priv->sidebar_image))
gtk_widget_unmap (priv->sidebar_image);
if (priv->current_page &&
GTK_WIDGET_DRAWABLE (priv->current_page->page))
gtk_widget_unmap (priv->current_page->page);
g_slist_free (priv->visited_pages);
priv->visited_pages = NULL;
priv->current_page = NULL;
GTK_WIDGET_CLASS (gtk_assistant_parent_class)->unmap (widget);
}
static gboolean
gtk_assistant_delete_event (GtkWidget *widget,
GdkEventAny *event)
{
GtkAssistant *assistant = GTK_ASSISTANT (widget);
GtkAssistantPrivate *priv = assistant->priv;
/* Do not allow cancelling in the middle of a progress page */
if (priv->current_page &&
(priv->current_page->type != GTK_ASSISTANT_PAGE_PROGRESS ||
priv->current_page->complete))
g_signal_emit (widget, signals [CANCEL], 0, NULL);
return TRUE;
}
static void
assistant_paint_colored_box (GtkWidget *widget)
{
GtkAssistant *assistant = GTK_ASSISTANT (widget);
GtkAssistantPrivate *priv = assistant->priv;
gint border_width, header_padding, content_padding;
cairo_t *cr;
gint content_x, content_width;
gboolean rtl;
cr = gdk_cairo_create (widget->window);
rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
gtk_widget_style_get (widget,
"header-padding", &header_padding,
"content-padding", &content_padding,
NULL);
/* colored box */
gdk_cairo_set_source_color (cr, &widget->style->bg[GTK_STATE_SELECTED]);
cairo_rectangle (cr,
border_width,
border_width,
widget->allocation.width - 2 * border_width,
widget->allocation.height - priv->action_area->allocation.height - 2 * border_width - ACTION_AREA_SPACING);
cairo_fill (cr);
/* content box */
content_x = content_padding + border_width;
content_width = widget->allocation.width - 2 * content_padding - 2 * border_width;
if (GTK_WIDGET_VISIBLE (priv->sidebar_image))
{
if (!rtl)
content_x += priv->sidebar_image->allocation.width;
content_width -= priv->sidebar_image->allocation.width;
}
gdk_cairo_set_source_color (cr, &widget->style->bg[GTK_STATE_NORMAL]);
cairo_rectangle (cr,
content_x,
priv->header_image->allocation.height + content_padding + 2 * header_padding + border_width,
content_width,
widget->allocation.height - 2 * border_width - priv->action_area->allocation.height -
priv->header_image->allocation.height - 2 * content_padding - 2 * header_padding - ACTION_AREA_SPACING);
cairo_fill (cr);
cairo_destroy (cr);
}
static gboolean
gtk_assistant_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkAssistant *assistant = GTK_ASSISTANT (widget);
GtkAssistantPrivate *priv = assistant->priv;
GtkContainer *container;
if (GTK_WIDGET_DRAWABLE (widget))
{
container = GTK_CONTAINER (widget);
assistant_paint_colored_box (widget);
gtk_container_propagate_expose (container, priv->header_image, event);
gtk_container_propagate_expose (container, priv->sidebar_image, event);
gtk_container_propagate_expose (container, priv->action_area, event);
if (priv->current_page)
{
gtk_container_propagate_expose (container, priv->current_page->page, event);
gtk_container_propagate_expose (container, priv->current_page->title, event);
}
}
return FALSE;
}
static gboolean
gtk_assistant_focus (GtkWidget *widget,
GtkDirectionType direction)
{
GtkAssistantPrivate *priv;
GtkContainer *container;
container = GTK_CONTAINER (widget);
priv = GTK_ASSISTANT (widget)->priv;
/* we only have to care about 2 widgets, action area and the current page */
if (container->focus_child == priv->action_area)
{
if (!gtk_widget_child_focus (priv->action_area, direction) &&
(priv->current_page == NULL ||
!gtk_widget_child_focus (priv->current_page->page, direction)))
{
/* if we're leaving the action area and the current page hasn't
any focusable widget, clear focus and go back to the action area */
gtk_container_set_focus_child (GTK_CONTAINER (priv->action_area), NULL);
gtk_widget_child_focus (priv->action_area, direction);
}
}
else
{
if ((priv->current_page == NULL ||
!gtk_widget_child_focus (priv->current_page->page, direction)) &&
!gtk_widget_child_focus (priv->action_area, direction))
{
/* if we're leaving the current page and there isn't nothing focusable
in the action area, try to clear focus and go back to the page */
gtk_window_set_focus (GTK_WINDOW (widget), NULL);
if (priv->current_page != NULL)
gtk_widget_child_focus (priv->current_page->page, direction);
}
}
return TRUE;
}
static void
gtk_assistant_add (GtkContainer *container,
GtkWidget *page)
{
g_return_if_fail (GTK_IS_WIDGET (page));
gtk_assistant_append_page (GTK_ASSISTANT (container), page);
}
static void
gtk_assistant_remove (GtkContainer *container,
GtkWidget *page)
{
GtkAssistant *assistant;
GList *element;
assistant = (GtkAssistant*) container;
element = find_page (assistant, page);
if (element)
{
remove_page (assistant, element);
gtk_widget_queue_resize ((GtkWidget *) container);
}
}
static void
gtk_assistant_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkAssistant *assistant = (GtkAssistant*) container;
GtkAssistantPrivate *priv = assistant->priv;
GList *pages;
if (include_internals)
{
(*callback) (priv->header_image, callback_data);
(*callback) (priv->sidebar_image, callback_data);
(*callback) (priv->action_area, callback_data);
}
pages = priv->pages;
while (pages)
{
GtkAssistantPage *page = (GtkAssistantPage *) pages->data;
(*callback) (page->page, callback_data);
if (include_internals)
(*callback) (page->title, callback_data);
pages = pages->next;
}
}
/**
* gtk_assistant_new:
*
* Creates a new #GtkAssistant.
*
* Return value: a newly created #GtkAssistant
*
* Since: 2.10
**/
GtkWidget*
gtk_assistant_new (void)
{
GtkWidget *assistant;
assistant = g_object_new (GTK_TYPE_ASSISTANT,
"border-width", 12,
NULL);
return assistant;
}
/**
* gtk_assistant_get_current_page:
* @assistant: a #GtkAssistant
*
* Returns the page number of the current page
*
* Return value: The index (starting from 0) of the current page in
* the @assistant, if the @assistant has no pages, -1 will be returned
*
* Since: 2.10
**/
gint
gtk_assistant_get_current_page (GtkAssistant *assistant)
{
GtkAssistantPrivate *priv;
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), -1);
priv = assistant->priv;
if (!priv->pages || !priv->current_page)
return -1;
return g_list_index (priv->pages, priv->current_page);
}
/**
* gtk_assistant_set_current_page:
* @assistant: a #GtkAssistant
* @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 @assistant, nothing
* will be done.
*
* Switches the page to @page_num. Note that this will only be necessary
* in custom buttons, as the @assistant flow can be set with
* gtk_assistant_set_forward_page_func().
*
* Since: 2.10
**/
void
gtk_assistant_set_current_page (GtkAssistant *assistant,
gint page_num)
{
GtkAssistantPrivate *priv;
GtkAssistantPage *page;
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
priv = assistant->priv;
if (page_num >= 0)
page = (GtkAssistantPage *) g_list_nth_data (priv->pages, page_num);
else
page = (GtkAssistantPage *) g_list_last (priv->pages);
g_return_if_fail (page != NULL);
if (priv->current_page == page)
return;
/* only add the page to the visited list if the
* assistant is mapped, if not, just use it as an
* initial page setting, for the cases where the
* initial page is != to 0
*/
if (GTK_WIDGET_MAPPED (assistant))
priv->visited_pages = g_slist_prepend (priv->visited_pages, page);
set_current_page (assistant, page);
}
/**
* gtk_assistant_get_n_pages:
* @assistant: a #GtkAssistant
*
* Returns the number of pages in the @assistant
*
* Return value: The number of pages in the @assistant.
*
* Since: 2.10
**/
gint
gtk_assistant_get_n_pages (GtkAssistant *assistant)
{
GtkAssistantPrivate *priv;
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), 0);
priv = assistant->priv;
return g_list_length (priv->pages);
}
/**
* gtk_assistant_get_nth_page:
* @assistant: a #GtkAssistant
* @page_num: The index of a page in the @assistant, 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.
*
* Since: 2.10
**/
GtkWidget*
gtk_assistant_get_nth_page (GtkAssistant *assistant,
gint page_num)
{
GtkAssistantPrivate *priv;
GtkAssistantPage *page;
GList *elem;
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), NULL);
priv = assistant->priv;
elem = g_list_nth (priv->pages, page_num);
if (!elem)
return NULL;
page = (GtkAssistantPage *) elem->data;
return page->page;
}
/**
* gtk_assistant_prepend_page:
* @assistant: a #GtkAssistant
* @page: a #GtkWidget
*
* Prepends a page to the @assistant.
*
* Return value: the index (starting at 0) of the inserted page
*
* Since: 2.10
**/
gint
gtk_assistant_prepend_page (GtkAssistant *assistant,
GtkWidget *page)
{
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), 0);
g_return_val_if_fail (GTK_IS_WIDGET (page), 0);
return gtk_assistant_insert_page (assistant, page, 0);
}
/**
* gtk_assistant_append_page:
* @assistant: a #GtkAssistant
* @page: a #GtkWidget
*
* Appends a page to the @assistant.
*
* Return value: the index (starting at 0) of the inserted page
*
* Since: 2.10
**/
gint
gtk_assistant_append_page (GtkAssistant *assistant,
GtkWidget *page)
{
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), 0);
g_return_val_if_fail (GTK_IS_WIDGET (page), 0);
return gtk_assistant_insert_page (assistant, page, -1);
}
/**
* gtk_assistant_insert_page:
* @assistant: a #GtkAssistant
* @page: a #GtkWidget
* @position: the index (starting at 0) at which to insert the page,
* or -1 to append the page to the @assistant
*
* Inserts a page in the @assistant at a given position.
*
* Return value: the index (starting from 0) of the inserted page
*
* Since: 2.10
**/
gint
gtk_assistant_insert_page (GtkAssistant *assistant,
GtkWidget *page,
gint position)
{
GtkAssistantPrivate *priv;
GtkAssistantPage *page_info;
gint n_pages;
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), 0);
g_return_val_if_fail (GTK_IS_WIDGET (page), 0);
g_return_val_if_fail (page->parent == NULL, 0);
g_return_val_if_fail (!GTK_WIDGET_TOPLEVEL (page), 0);
priv = assistant->priv;
page_info = g_new0 (GtkAssistantPage, 1);
page_info->page = page;
page_info->title = gtk_label_new (NULL);
g_signal_connect (G_OBJECT (page), "notify::visible",
G_CALLBACK (on_page_notify_visibility), assistant);
gtk_misc_set_alignment (GTK_MISC (page_info->title), 0.,0.5);
set_title_colors (GTK_WIDGET (assistant), page_info->title);
set_title_font (GTK_WIDGET (assistant), page_info->title);
gtk_widget_show (page_info->title);
n_pages = g_list_length (priv->pages);
if (position < 0 || position > n_pages)
position = n_pages;
priv->pages = g_list_insert (priv->pages, page_info, position);
gtk_widget_set_child_visible (page_info->page, FALSE);
gtk_widget_set_parent (page_info->page, GTK_WIDGET (assistant));
gtk_widget_set_parent (page_info->title, GTK_WIDGET (assistant));
if (GTK_WIDGET_REALIZED (GTK_WIDGET (assistant)))
{
gtk_widget_realize (page_info->page);
gtk_widget_realize (page_info->title);
}
gtk_widget_queue_resize (GTK_WIDGET (assistant));
return position;
}
/**
* gtk_assistant_set_forward_page_func:
* @assistant: a #GtkAssistant
* @page_func: the #GtkAssistantPageFunc, or %NULL to use the default one
* @data: user data for @page_func
* @destroy: destroy notifier for @data
*
* Sets the page forwarding function to be @page_func, this function will
* be used to determine what will be the next page when the user presses
* the forward button. Setting @page_func to %NULL will make the assistant
* to use the default forward function, which just goes to the next visible
* page.
*
* Since: 2.10
**/
void
gtk_assistant_set_forward_page_func (GtkAssistant *assistant,
GtkAssistantPageFunc page_func,
gpointer data,
GDestroyNotify destroy)
{
GtkAssistantPrivate *priv;
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
priv = assistant->priv;
if (priv->forward_data_destroy &&
priv->forward_function_data)
(*priv->forward_data_destroy) (priv->forward_function_data);
if (page_func)
{
priv->forward_function = page_func;
priv->forward_function_data = data;
priv->forward_data_destroy = destroy;
}
else
{
priv->forward_function = default_forward_function;
priv->forward_function_data = assistant;
priv->forward_data_destroy = NULL;
}
/* Page flow has possibly changed, so the
buttons state might need to change too */
set_assistant_buttons_state (assistant);
}
/**
* gtk_assistant_add_action_widget:
* @assistant: a #GtkAssistant
* @child: a #GtkWidget
*
* Adds a widget to the action area of a #GtkAssistant.
*
* Since: 2.10
**/
void
gtk_assistant_add_action_widget (GtkAssistant *assistant,
GtkWidget *child)
{
GtkAssistantPrivate *priv;
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
g_return_if_fail (GTK_IS_WIDGET (child));
priv = assistant->priv;
if (GTK_IS_BUTTON (child))
gtk_size_group_add_widget (priv->size_group, child);
gtk_box_pack_end (GTK_BOX (priv->action_area), child, FALSE, FALSE, 0);
}
/**
* gtk_assistant_remove_action_widget:
* @assistant: a #GtkAssistant
* @child: a #GtkWidget
*
* Removes a widget from the action area of a #GtkAssistant.
*
* Since: 2.10
**/
void
gtk_assistant_remove_action_widget (GtkAssistant *assistant,
GtkWidget *child)
{
GtkAssistantPrivate *priv;
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
g_return_if_fail (GTK_IS_WIDGET (child));
priv = assistant->priv;
if (GTK_IS_BUTTON (child))
gtk_size_group_remove_widget (priv->size_group, child);
gtk_container_remove (GTK_CONTAINER (priv->action_area), child);
}
/**
* gtk_assistant_set_page_title:
* @assistant: a #GtkAssistant
* @page: a page of @assistant
* @title: the new title for @page
*
* Sets a title for @page. The title is displayed in the header
* area of the assistant when @page is the current page.
*
* Since: 2.10
**/
void
gtk_assistant_set_page_title (GtkAssistant *assistant,
GtkWidget *page,
const gchar *title)
{
GtkAssistantPage *page_info;
GList *child;
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
g_return_if_fail (GTK_IS_WIDGET (page));
child = find_page (assistant, page);
g_return_if_fail (child != NULL);
page_info = (GtkAssistantPage*) child->data;
gtk_label_set_text ((GtkLabel*) page_info->title, title);
gtk_widget_queue_resize (GTK_WIDGET (assistant));
gtk_widget_child_notify (page, "title");
}
/**
* gtk_assistant_get_page_title:
* @assistant: a #GtkAssistant
* @page: a page of @assistant
*
* Gets the title for @page.
*
* Return value: the title for @page.
*
* Since: 2.10
**/
G_CONST_RETURN gchar*
gtk_assistant_get_page_title (GtkAssistant *assistant,
GtkWidget *page)
{
GtkAssistantPage *page_info;
GList *child;
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (page), NULL);
child = find_page (assistant, page);
g_return_val_if_fail (child != NULL, NULL);
page_info = (GtkAssistantPage*) child->data;
return gtk_label_get_text ((GtkLabel*) page_info->title);
}
/**
* gtk_assistant_set_page_type:
* @assistant: a #GtkAssistant
* @page: a page of @assistant
* @type: the new type for @page
*
* Sets the page type for @page. The page type determines the page
* behavior in the @assistant.
*
* Since: 2.10
**/
void
gtk_assistant_set_page_type (GtkAssistant *assistant,
GtkWidget *page,
GtkAssistantPageType type)
{
GtkAssistantPrivate *priv;
GtkAssistantPage *page_info;
GList *child;
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
g_return_if_fail (GTK_IS_WIDGET (page));
priv = assistant->priv;
child = find_page (assistant, page);
g_return_if_fail (child != NULL);
page_info = (GtkAssistantPage*) child->data;
if (type != page_info->type)
{
page_info->type = type;
/* Always set buttons state, a change in a future page
might change current page buttons */
set_assistant_buttons_state (assistant);
gtk_widget_child_notify (page, "page-type");
}
}
/**
* gtk_assistant_get_page_type:
* @assistant: a #GtkAssistant
* @page: a page of @assistant
*
* Gets the page type of @page.
*
* Return value: the page type of @page.
*
* Since: 2.10
**/
GtkAssistantPageType
gtk_assistant_get_page_type (GtkAssistant *assistant,
GtkWidget *page)
{
GtkAssistantPage *page_info;
GList *child;
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), GTK_ASSISTANT_PAGE_CONTENT);
g_return_val_if_fail (GTK_IS_WIDGET (page), GTK_ASSISTANT_PAGE_CONTENT);
child = find_page (assistant, page);
g_return_val_if_fail (child != NULL, GTK_ASSISTANT_PAGE_CONTENT);
page_info = (GtkAssistantPage*) child->data;
return page_info->type;
}
/**
* gtk_assistant_set_page_header_image:
* @assistant: a #GtkAssistant
* @page: a page of @assistant
* @pixbuf: the new header image @page
*
* Sets a header image for @page. This image is displayed in the header
* area of the assistant when @page is the current page.
*
* Since: 2.10
**/
void
gtk_assistant_set_page_header_image (GtkAssistant *assistant,
GtkWidget *page,
GdkPixbuf *pixbuf)
{
GtkAssistantPrivate *priv;
GtkAssistantPage *page_info;
GList *child;
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
g_return_if_fail (GTK_IS_WIDGET (page));
g_return_if_fail (pixbuf == NULL || GDK_IS_PIXBUF (pixbuf));
priv = assistant->priv;
child = find_page (assistant, page);
g_return_if_fail (child != NULL);
page_info = (GtkAssistantPage*) child->data;
if (pixbuf != page_info->header_image)
{
if (page_info->header_image)
{
g_object_unref (page_info->header_image);
page_info->header_image = NULL;
}
if (pixbuf)
page_info->header_image = g_object_ref (pixbuf);
if (page_info == priv->current_page)
set_assistant_header_image (assistant);
gtk_widget_child_notify (page, "header-image");
}
}
/**
* gtk_assistant_get_page_header_image:
* @assistant: a #GtkAssistant
* @page: a page of @assistant
*
* Gets the header image for @page.
*
* Return value: the header image for @page, or %NULL
* if there's no header image for the page.
*
* Since: 2.10
**/
GdkPixbuf*
gtk_assistant_get_page_header_image (GtkAssistant *assistant,
GtkWidget *page)
{
GtkAssistantPage *page_info;
GList *child;
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (page), NULL);
child = find_page (assistant, page);
g_return_val_if_fail (child != NULL, NULL);
page_info = (GtkAssistantPage*) child->data;
return page_info->header_image;
}
/**
* gtk_assistant_set_page_side_image:
* @assistant: a #GtkAssistant
* @page: a page of @assistant
* @pixbuf: the new header image @page
*
* Sets a header image for @page. This image is displayed in the side
* area of the assistant when @page is the current page.
*
* Since: 2.10
**/
void
gtk_assistant_set_page_side_image (GtkAssistant *assistant,
GtkWidget *page,
GdkPixbuf *pixbuf)
{
GtkAssistantPrivate *priv;
GtkAssistantPage *page_info;
GList *child;
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
g_return_if_fail (GTK_IS_WIDGET (page));
g_return_if_fail (pixbuf == NULL || GDK_IS_PIXBUF (pixbuf));
priv = assistant->priv;
child = find_page (assistant, page);
g_return_if_fail (child != NULL);
page_info = (GtkAssistantPage*) child->data;
if (pixbuf != page_info->sidebar_image)
{
if (page_info->sidebar_image)
{
g_object_unref (page_info->sidebar_image);
page_info->sidebar_image = NULL;
}
if (pixbuf)
page_info->sidebar_image = g_object_ref (pixbuf);
if (page_info == priv->current_page)
set_assistant_sidebar_image (assistant);
gtk_widget_child_notify (page, "sidebar-image");
}
}
/**
* gtk_assistant_get_page_side_image:
* @assistant: a #GtkAssistant
* @page: a page of @assistant
*
* Gets the header image for @page.
*
* Return value: the side image for @page, or %NULL
* if there's no side image for the page.
*
* Since: 2.10
**/
GdkPixbuf*
gtk_assistant_get_page_side_image (GtkAssistant *assistant,
GtkWidget *page)
{
GtkAssistantPage *page_info;
GList *child;
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (page), NULL);
child = find_page (assistant, page);
g_return_val_if_fail (child != NULL, NULL);
page_info = (GtkAssistantPage*) child->data;
return page_info->sidebar_image;
}
/**
* gtk_assistant_set_page_complete:
* @assistant: a #GtkAssistant
* @page: a page of @assistant
* @complete: the completeness status of the page
*
* Sets whether @page contents are complete. This will make
* @assistant update the buttons state to be able to continue the task.
*
* Since: 2.10
**/
void
gtk_assistant_set_page_complete (GtkAssistant *assistant,
GtkWidget *page,
gboolean complete)
{
GtkAssistantPrivate *priv;
GtkAssistantPage *page_info;
GList *child;
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
g_return_if_fail (GTK_IS_WIDGET (page));
priv = assistant->priv;
child = find_page (assistant, page);
g_return_if_fail (child != NULL);
page_info = (GtkAssistantPage*) child->data;
if (complete != page_info->complete)
{
page_info->complete = complete;
/* Always set buttons state, a change in a future page
might change current page buttons */
set_assistant_buttons_state (assistant);
gtk_widget_child_notify (page, "complete");
}
}
/**
* gtk_assistant_get_page_complete:
* @assistant: a #GtkAssistant
* @page: a page of @assistant
*
* Gets whether @page is complete..
*
* Return value: %TRUE if @page is complete.
*
* Since: 2.10
**/
gboolean
gtk_assistant_get_page_complete (GtkAssistant *assistant,
GtkWidget *page)
{
GtkAssistantPage *page_info;
GList *child;
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), FALSE);
g_return_val_if_fail (GTK_IS_WIDGET (page), FALSE);
child = find_page (assistant, page);
g_return_val_if_fail (child != NULL, FALSE);
page_info = (GtkAssistantPage*) child->data;
return page_info->complete;
}
/**
* gtk_assistant_update_buttons_state:
* @assistant: a #GtkAssistant
*
* Forces @assistant to recompute the buttons state.
*
* GTK+ automatically takes care of this in most situations,
* e.g. when the user goes to a different page, or when the
* visibility or completeness of a page changes.
*
* One situation where it can be necessary to call this
* function is when changing a value on the current page
* affects the future page flow of the assistant.
*
* Since: 2.10
**/
void
gtk_assistant_update_buttons_state (GtkAssistant *assistant)
{
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
set_assistant_buttons_state (assistant);
}
/* accessible implementation */
static gint
gtk_assistant_accessible_get_n_children (AtkObject *accessible)
{
GtkAssistant *assistant;
GtkWidget *widget;
widget = GTK_ACCESSIBLE (accessible)->widget;
if (!widget)
return 0;
assistant = GTK_ASSISTANT (widget);
return g_list_length (assistant->priv->pages) + 1;
}
static AtkObject *
gtk_assistant_accessible_ref_child (AtkObject *accessible,
gint index)
{
GtkAssistant *assistant;
GtkAssistantPrivate *priv;
GtkWidget *widget, *child;
gint n_pages;
AtkObject *obj;
widget = GTK_ACCESSIBLE (accessible)->widget;
if (!widget)
return NULL;
assistant = GTK_ASSISTANT (widget);
priv = assistant->priv;
n_pages = g_list_length (priv->pages);
if (index < 0)
return NULL;
else if (index < n_pages)
{
GtkAssistantPage *page = g_list_nth_data (priv->pages, index / 2);
child = page->page;
}
else if (index == n_pages)
{
child = priv->action_area;
}
else
return NULL;
obj = gtk_widget_get_accessible (child);
return g_object_ref (obj);
}
static void
gtk_assistant_accessible_class_init (AtkObjectClass *class)
{
class->get_n_children = gtk_assistant_accessible_get_n_children;
class->ref_child = gtk_assistant_accessible_ref_child;
}
static GType
gtk_assistant_accessible_get_type (void)
{
static GType type = 0;
if (!type)
{
/*
* Figure out the size of the class and instance
* we are deriving from
*/
AtkObjectFactory *factory;
GType derived_type;
GTypeQuery query;
GType derived_atk_type;
derived_type = g_type_parent (GTK_TYPE_ASSISTANT);
factory = atk_registry_get_factory (atk_get_default_registry (),
derived_type);
derived_atk_type = atk_object_factory_get_accessible_type (factory);
g_type_query (derived_atk_type, &query);
type = g_type_register_static_simple (derived_atk_type,
I_("GtkAssistantAccessible"),
query.class_size,
(GClassInitFunc) gtk_assistant_accessible_class_init,
query.instance_size,
NULL, 0);
}
return type;
}
static AtkObject *
gtk_assistant_accessible_new (GObject *obj)
{
AtkObject *accessible;
g_return_val_if_fail (GTK_IS_ASSISTANT (obj), NULL);
accessible = g_object_new (gtk_assistant_accessible_get_type (), NULL);
atk_object_initialize (accessible, obj);
return accessible;
}
static GType
gtk_assistant_accessible_factory_get_accessible_type (void)
{
return gtk_assistant_accessible_get_type ();
}
static AtkObject*
gtk_assistant_accessible_factory_create_accessible (GObject *obj)
{
return gtk_assistant_accessible_new (obj);
}
static void
gtk_assistant_accessible_factory_class_init (AtkObjectFactoryClass *class)
{
class->create_accessible = gtk_assistant_accessible_factory_create_accessible;
class->get_accessible_type = gtk_assistant_accessible_factory_get_accessible_type;
}
static GType
gtk_assistant_accessible_factory_get_type (void)
{
static GType type = 0;
if (!type)
{
type = g_type_register_static_simple (ATK_TYPE_OBJECT_FACTORY,
I_("GtkAssistantAccessibleFactory"),
sizeof (AtkObjectFactoryClass),
(GClassInitFunc) gtk_assistant_accessible_factory_class_init,
sizeof (AtkObjectFactory),
NULL, 0);
}
return type;
}
static AtkObject *
gtk_assistant_get_accessible (GtkWidget *widget)
{
static gboolean first_time = TRUE;
if (first_time)
{
AtkObjectFactory *factory;
AtkRegistry *registry;
GType derived_type;
GType derived_atk_type;
/*
* Figure out whether accessibility is enabled by looking at the
* type of the accessible object which would be created for
* the parent type of GtkAssistant.
*/
derived_type = g_type_parent (GTK_TYPE_ASSISTANT);
registry = atk_get_default_registry ();
factory = atk_registry_get_factory (registry,
derived_type);
derived_atk_type = atk_object_factory_get_accessible_type (factory);
if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
{
atk_registry_set_factory_type (registry,
GTK_TYPE_ASSISTANT,
gtk_assistant_accessible_factory_get_type ());
}
first_time = FALSE;
}
return GTK_WIDGET_CLASS (gtk_assistant_parent_class)->get_accessible (widget);
}
#define __GTK_ASSISTANT_C__
#include "gtkaliasdef.c"
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