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# Gtk::Assistant Class Reference
[Dialogs]

Inheritance diagram for Gtk::Assistant:

[legend]
List of all members.

## Detailed Description

A widget used to guide users through multi-step operations.

A Gtk::Assistant is a widget used to represent a generally complex operation split into several steps, guiding the user through its pages and controlling the page flow to collect the necessary data.

Since gtkmm 2.10:

## Public Types
typedef sigc::slot<int, int> | SlotForwardPage
## Public Member Functions
void | add_action_widget (Widget& child)
| Adds a widget to the action area of a Gtk::Assistant.
int | append_page (Widget& page)
| Appends a page to the assistant .
| Assistant ()
int | get_current_page () const
| Return value: The index (starting from 0) of the current page in.
int | get_n_pages () const
| Return value: The number of pages in the assistant .
const Widget* | get_nth_page (int page_num) const
| Return value: The child widget, or `0` if page_num is out of bounds.
Widget* | get_nth_page (int page_num)
| Return value: The child widget, or `0` if page_num is out of bounds.
bool | get_page_complete (const Widget& page) const
| Gets whether page is complete.
Glib::RefPtr<const Gdk::Pixbuf> | get_page_header_image (const Widget& page) const
| Gets the header image for page .
Glib::RefPtr<Gdk::Pixbuf> | get_page_header_image (const Widget& page)
| Gets the header image for page .
Glib::RefPtr<const Gdk::Pixbuf> | get_page_side_image (const Widget& page) const
| Gets the header image for page .
Glib::RefPtr<Gdk::Pixbuf> | get_page_side_image (const Widget& page)
| Gets the header image for page .
Glib::ustring | get_page_title (const Widget& page) const
| Gets the title for page .
AssistantPageType | get_page_type (const Widget& page) const
| Gets the page type of page .
const GtkAssistant* | gobj () const
| Provides access to the underlying C GtkObject.
GtkAssistant* | gobj ()
| Provides access to the underlying C GtkObject.
int | insert_page (Widget& page, int position)
| Inserts a page in the assistant at a given position.
int | prepend_page (Widget& page)
| Prepends a page to the assistant .
void | remove_action_widget (Widget& child)
| Removes a widget from the action area of a Gtk::Assistant.
void | set_current_page (int page_num)
| Switches the page to page_num .
void | set_forward_page_func (const SlotForwardPage& slot)
void | set_page_complete (const Widget& page, bool complete=true)
| Sets whether page contents are complete.
void | set_page_header_image (const Widget& page, const Glib::RefPtr<Gdk::Pixbuf>& pixbuf)
| Sets a header image for page .
void | set_page_side_image (const Widget& page, const Glib::RefPtr<Gdk::Pixbuf>& pixbuf)
| Sets a header image for page .
void | set_page_title (const Widget& page, const Glib::ustring& title)
| Sets a title for page .
void | set_page_type (const Widget& page, AssistantPageType type)
| Sets the page type for page .
Glib::SignalProxy0<void> | signal_apply ()
| Prototype: `void on_my_apply()`
Glib::SignalProxy0<void> | signal_cancel ()
| Prototype: `void on_my_cancel()`
Glib::SignalProxy0<void> | signal_close ()
| Prototype: `void on_my_close()`
Glib::SignalProxy1< void, Gtk::Widget* > | signal_prepare ()
| Prototype: `void on_my_prepare(Gtk::Widget* page)`
void | update_buttons_state ()
| Forces assistant to recompute the buttons state.
virtual | ~Assistant ()
## Protected Member Functions
virtual void | on_apply ()
virtual void | on_cancel ()
virtual void | on_close ()
virtual void | on_prepare (Gtk::Widget* page)
## Related Functions
(Note that these are not member functions.)
Gtk::Assistant* | wrap (GtkAssistant* object, bool take_copy=false)
| A Glib::wrap() method for this object.

## Member Typedef Documentation

typedef sigc::slot<int, int > Gtk::Assistant::SlotForwardPage

## Constructor & Destructor Documentation

virtual Gtk::Assistant::~Assistant | ( |  | ) | `[virtual]`

Gtk::Assistant::Assistant | ( |  | ) |

## Member Function Documentation

void Gtk::Assistant::add_action_widget | ( | Widget& | child | ) |

Adds a widget to the action area of a Gtk::Assistant.

Since gtkmm 2.10:

Parameters:

  | child | A Gtk::Widget.

int Gtk::Assistant::append_page | ( | Widget& | page | ) |

Appends a page to the assistant .

Parameters:

  | page | A Gtk::Widget.

Returns:
  The index (starting at 0) of the inserted page

Since gtkmm 2.10:

int Gtk::Assistant::get_current_page | ( |  | ) | const

Return value: The index (starting from 0) of the current page in.

Returns:
  The index (starting from 0) of the current page in the assistant , if the assistant has no pages, -1 will be returned

Since gtkmm 2.10:

int Gtk::Assistant::get_n_pages | ( |  | ) | const

Return value: The number of pages in the assistant .

Returns:
  The number of pages in the assistant .

Since gtkmm 2.10:

const Widget* Gtk::Assistant::get_nth_page | ( | int | page_num | ) | const

Return value: The child widget, or `0` if page_num is out of bounds.

Parameters:

  | page_num | The index of a page in the assistant , or -1 to get the last page;.

Returns:
  The child widget, or `0` if page_num is out of bounds.

Since gtkmm 2.10:

Widget* Gtk::Assistant::get_nth_page | ( | int | page_num | ) |

Return value: The child widget, or `0` if page_num is out of bounds.

Parameters:

  | page_num | The index of a page in the assistant , or -1 to get the last page;.

Returns:
  The child widget, or `0` if page_num is out of bounds.

Since gtkmm 2.10:

bool Gtk::Assistant::get_page_complete | ( | const Widget& | page | ) | const

Gets whether page is complete.

Parameters:

  | page | A page of assistant .

Returns:
  `true` if page is complete.

Since gtkmm 2.10:

Glib::RefPtr<const Gdk::Pixbuf> Gtk::Assistant::get_page_header_image | ( | const Widget& | page | ) | const

Gets the header image for page .

Parameters:

  | page | A page of assistant .

Returns:
  The header image for page , or `0` if there's no header image for the page.

Since gtkmm 2.10:

Glib::RefPtr<Gdk::Pixbuf> Gtk::Assistant::get_page_header_image | ( | const Widget& | page | ) |

Gets the header image for page .

Parameters:

  | page | A page of assistant .

Returns:
  The header image for page , or `0` if there's no header image for the page.

Since gtkmm 2.10:

Glib::RefPtr<const Gdk::Pixbuf> Gtk::Assistant::get_page_side_image | ( | const Widget& | page | ) | const

Gets the header image for page .

Parameters:

  | page | A page of assistant .

Returns:
  The side image for page , or `0` if there's no side image for the page.

Since gtkmm 2.10:

Glib::RefPtr<Gdk::Pixbuf> Gtk::Assistant::get_page_side_image | ( | const Widget& | page | ) |

Gets the header image for page .

Parameters:

  | page | A page of assistant .

Returns:
  The side image for page , or `0` if there's no side image for the page.

Since gtkmm 2.10:

Glib::ustring Gtk::Assistant::get_page_title | ( | const Widget& | page | ) | const

Gets the title for page .

Parameters:

  | page | A page of assistant .

Returns:
  The title for page .

Since gtkmm 2.10:

AssistantPageType Gtk::Assistant::get_page_type | ( | const Widget& | page | ) | const

Gets the page type of page .

Parameters:

  | page | A page of assistant .

Returns:
  The page type of page .

Since gtkmm 2.10:

const GtkAssistant* Gtk::Assistant::gobj | ( |  | ) | const`[inline]`

Provides access to the underlying C GtkObject.

Reimplemented from Gtk::Window.

GtkAssistant* Gtk::Assistant::gobj | ( |  | ) | `[inline]`

Provides access to the underlying C GtkObject.

Reimplemented from Gtk::Window.

int Gtk::Assistant::insert_page | ( | Widget& | page,
|  | int | position |
| ) |  |  |

Inserts a page in the assistant at a given position.

Parameters:

  | page | A Gtk::Widget.
  | position | The index (starting at 0) at which to insert the page, or -1 to append the page to the assistant .

Returns:
  The index (starting from 0) of the inserted page

Since gtkmm 2.10:

virtual void Gtk::Assistant::on_apply | ( |  | ) | `[protected, virtual]`

virtual void Gtk::Assistant::on_cancel | ( |  | ) | `[protected, virtual]`

virtual void Gtk::Assistant::on_close | ( |  | ) | `[protected, virtual]`

virtual void Gtk::Assistant::on_prepare | ( | Gtk::Widget* | page | ) | `[protected, virtual]`

int Gtk::Assistant::prepend_page | ( | Widget& | page | ) |

Prepends a page to the assistant .

Parameters:

  | page | A Gtk::Widget.

Returns:
  The index (starting at 0) of the inserted page

Since gtkmm 2.10:

void Gtk::Assistant::remove_action_widget | ( | Widget& | child | ) |

Removes a widget from the action area of a Gtk::Assistant.

Since gtkmm 2.10:

Parameters:

  | child | A Gtk::Widget.

void Gtk::Assistant::set_current_page | ( | int | page_num | ) |

Switches the page to page_num .

Note that this will only be necessary in custom buttons, as the assistant flow can be set with set_forward_page_func().

Since gtkmm 2.10:

Parameters:

  | 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.

void Gtk::Assistant::set_forward_page_func | ( | const SlotForwardPage& | slot | ) |

void Gtk::Assistant::set_page_complete | ( | const Widget& | page,
|  | bool | complete = `true` |
| ) |  |  |

Sets whether page contents are complete.

This will make assistant update the buttons state to be able to continue the task.

Since gtkmm 2.10:

Parameters:

  | page | A page of assistant .
  | complete | The completeness status of the page.

void Gtk::Assistant::set_page_header_image | ( | const Widget& | page,
|  | const Glib::RefPtr<Gdk::Pixbuf>& | pixbuf |
| ) |  |  |

Sets a header image for page .

This image is displayed in the header area of the assistant when page is the current page.

Since gtkmm 2.10:

Parameters:

  | page | A page of assistant .
  | pixbuf | The new header image page .

void Gtk::Assistant::set_page_side_image | ( | const Widget& | page,
|  | const Glib::RefPtr<Gdk::Pixbuf>& | pixbuf |
| ) |  |  |

Sets a header image for page .

This image is displayed in the side area of the assistant when page is the current page.

Since gtkmm 2.10:

Parameters:

  | page | A page of assistant .
  | pixbuf | The new header image page .

void Gtk::Assistant::set_page_title | ( | const Widget& | page,
|  | const Glib::ustring & | title |
| ) |  |  |

Sets a title for page .

The title is displayed in the header area of the assistant when page is the current page.

Since gtkmm 2.10:

Parameters:

  | page | A page of assistant .
  | title | The new title for page .

void Gtk::Assistant::set_page_type | ( | const Widget& | page,
|  | AssistantPageType | type |
| ) |  |  |

Sets the page type for page .

The page type determines the page behavior in the assistant .

Since gtkmm 2.10:

Parameters:

  | page | A page of assistant .
  | type | The new type for page .

Glib::SignalProxy0< void > Gtk::Assistant::signal_apply | ( |  | ) |

Prototype:
  `void on_my_apply()`

Glib::SignalProxy0< void > Gtk::Assistant::signal_cancel | ( |  | ) |

Prototype:
  `void on_my_cancel()`

Glib::SignalProxy0< void > Gtk::Assistant::signal_close | ( |  | ) |

Prototype:
  `void on_my_close()`

Glib::SignalProxy1<void,Gtk::Widget*> Gtk::Assistant::signal_prepare | ( |  | ) |

Prototype:
  `void on_my_prepare(Gtk::Widget* page)`

void Gtk::Assistant::update_buttons_state | ( |  | ) |

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 gtkmm 2.10:

## Friends And Related Function Documentation

Gtk::Assistant* wrap | ( | GtkAssistant * | object,
|  | bool | take_copy = `false` |
| ) |  |  | `[related]`

A Glib::wrap() method for this object.

Parameters:

  | object | The C instance.
  | take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns:
  A C++ instance that wraps this C instance.

The documentation for this class was generated from the following file:

- assistant.h