# Gtk::Builder Class Reference

Build an interface from a UI definition description. More...

Inherits Glib::Object.

Collaboration diagram for Gtk::Builder:
[legend]

List of all members.

## Public Member Functions

virtual | ~Builder ()
GtkBuilder* | gobj ()
| Provides access to the underlying C GObject.
const GtkBuilder* | gobj () const
| Provides access to the underlying C GObject.
GtkBuilder* | gobj_copy ()
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
bool | add_from_file (const std::string& filename)
| Parses a file containing a GtkBuilder UI definition, and merges it with the current contents of the builder.
bool | add_from_file (const std::string& filename, const char* object_id)
| Parses a file containing a GtkBuilder UI definition, building only the requested object, and merges it with the current contents of the builder.
bool | add_from_file (const std::string& filename, const Glib::ustring& object_id)
| Parses a file containing a GtkBuilder UI definition, building only the requested object, and merges it with the current contents of the builder.
bool | add_from_file (const std::string& filename, const Glib::StringArrayHandle& object_ids)
| Parses a file containing a <link linkend="BUILDER-UI">GtkBuilder UI definition</link> building only the requested objects and merges them with the current contents of builder.
bool | add_from_string (const Glib::ustring& buffer)
| Parses a string containing a GtkBuilder UI definition and merges it with the current contents of the builder.
bool | add_from_string (const Glib::ustring& buffer, const char* object_id)
| Parses a string containing a GtkBuilder UI definition, building only the requested object, and merges it with the current contents of the builder.
bool | add_from_string (const Glib::ustring& buffer, const Glib::ustring& object_id)
| Parses a string containing a GtkBuilder UI definition, building only the requested object, and merges it with the current contents of the builder.
bool | add_from_string (const Glib::ustring& buffer, const Glib::StringArrayHandle& object_ids)
| Parses a string containing a GtkBuilder UI definition, building only the requested objects, and merges it with the current contents of the builder.
bool | add_from_string (const char* buffer, gsize length)
| Parses a string containing a GtkBuilder UI definition and merges it with the current contents of the builder.
Glib::RefPtr< Glib::Object > | get_object (const Glib::ustring& name)
| Gets the object named name.
template<class T_Widget >
void | get_widget (const Glib::ustring& name, T_Widget*& widget)
| Get a widget from the Builder file.
template<class T_Widget >
void | get_widget_derived (const Glib::ustring& name, T_Widget*& widget)
| This provides a pointer to a widget whose details are specified in the GtkBuilder file, but which is implemented by your own derived class.
void | set_translation_domain (const Glib::ustring& domain)
| Sets the translation domain of builder.
Glib::ustring | get_translation_domain () const
| Gets the translation domain of builder.
Glib::PropertyProxy < Glib::ustring > | property_translation_domain ()
| The translation domain used by gettext.
Glib::PropertyProxy_ReadOnly < Glib::ustring > | property_translation_domain () const
| The translation domain used by gettext.

## Static Public Member Functions

static Glib::RefPtr< Builder > | create ()
| Creates a new builder object.
static Glib::RefPtr< Builder > | create_from_file (const std::string& filename)
| Parses a file containing a GtkBuilder UI definition.
static Glib::RefPtr< Builder > | create_from_file (const std::string& filename, const Glib::ustring& object_id)
| Parses a file containing a GtkBuilder UI definition, building only the requested object.
static Glib::RefPtr< Builder > | create_from_file (const std::string& filename, const char* object_id)
| Parses a file containing a GtkBuilder UI definition, building only the requested object.
static Glib::RefPtr< Builder > | create_from_file (const std::string& filename, const Glib::StringArrayHandle& object_ids)
| Parses a file containing a GtkBuilder UI definition, building only the requested objects.
static Glib::RefPtr< Builder > | create_from_string (const Glib::ustring& buffer)
| Parses a string containing a GtkBuilder UI definition.
static Glib::RefPtr< Builder > | create_from_string (const Glib::ustring& buffer, const char* object_id)
| Parses a string containing a GtkBuilder UI definition building only the requested object.
static Glib::RefPtr< Builder > | create_from_string (const Glib::ustring& buffer, const Glib::ustring& object_id)
| Parses a string containing a GtkBuilder UI definition building only the requested object.
static Glib::RefPtr< Builder > | create_from_string (const Glib::ustring& buffer, const Glib::StringArrayHandle& object_ids)
| Parses a string containing a GtkBuilder UI definition building only the requested objects.

## Protected Member Functions

| Builder ()
Gtk::Widget* | get_widget_checked (const Glib::ustring& name, GType type)
GtkWidget* | get_cwidget (const Glib::ustring& name)

## Related Functions

(Note that these are not member functions.)
Glib::RefPtr< Gtk::Builder > | wrap (GtkBuilder* object, bool take_copy=false)
| A Glib::wrap() method for this object.

## Detailed Description

Build an interface from a UI definition description.

This object represents an `instantiation' of an UI definition description. When one of these objects is created, the XML file is read, and the interface is created. The Gtk::Builder object then provides an interface for accessing the widgets in the interface by the names assigned to them inside the UI description.

Since gtkmm 2.12:

## Constructor & Destructor Documentation

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

Gtk::Builder::Builder | ( |  | ) | `[protected]`

## Member Function Documentation

bool Gtk::Builder::add_from_file | ( | const std::string & | filename,
|  | const Glib::StringArrayHandle & | object_ids |
| ) |  |  |

Parses a file containing a <link linkend="BUILDER-UI">GtkBuilder UI definition</link> building only the requested objects and merges them with the current contents of builder.

Upon errors 0 will be returned and error will be assigned a Error from the Gtk::BUILDER_ERROR, MARKUP_ERROR or FILE_ERROR domain.

<note>

If you are adding an object that depends on an object that is not its child (for instance a Gtk::TreeView that depends on its Gtk::TreeModel), you have to explicitely list all of them in object_ids.

</note>

Since gtkmm 2.14:

Parameters:

  | filename | The name of the file to parse.
  | object_ids | Nul-terminated array of objects to build.

Returns:
  A positive value on success, 0 if an error occurred.

bool Gtk::Builder::add_from_file | ( | const std::string & | filename,
|  | const Glib::ustring & | object_id |
| ) |  |  |

Parses a file containing a GtkBuilder UI definition, building only the requested object, and merges it with the current contents of the builder.

If you are adding an object that depends on an object that is not its child (for instance a GtkTreeView that depends on its GtkTreeModel), you have to explicitely list all of them.

Parameters:

  | buffer | The file to parse.
  | The | object to build.

Returns:
  true on success or false if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError,Glib::MarkupError |

Since gtkmm 2.14:

bool Gtk::Builder::add_from_file | ( | const std::string & | filename,
|  | const char * | object_id |
| ) |  |  |

Parses a file containing a GtkBuilder UI definition, building only the requested object, and merges it with the current contents of the builder.

If you are adding an object that depends on an object that is not its child (for instance a GtkTreeView that depends on its GtkTreeModel), you have to explicitely list all of them.

Parameters:

  | buffer | The file to parse.
  | The | object to build.

Returns:
  true on success or false if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError,Glib::MarkupError |

Since gtkmm 2.16:

bool Gtk::Builder::add_from_file | ( | const std::string & | filename | ) |

Parses a file containing a GtkBuilder UI definition, and merges it with the current contents of the builder.

Parameters:

  | buffer | The file to parse.

Returns:
  true on success or false if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError,Glib::MarkupError |

Since gtkmm 2.14:

bool Gtk::Builder::add_from_string | ( | const char * | buffer,
|  | gsize | length |
| ) |  |  |

Parses a string containing a GtkBuilder UI definition and merges it with the current contents of the builder.

Parameters:

  | buffer | The string to parse.
  | length | The length of buffer (may be -1 if is nul-terminated).

Returns:
  true on success or false if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError |

Since gtkmm 2.12:

bool Gtk::Builder::add_from_string | ( | const Glib::ustring & | buffer,
|  | const Glib::StringArrayHandle & | object_ids |
| ) |  |  |

Parses a string containing a GtkBuilder UI definition, building only the requested objects, and merges it with the current contents of the builder.

Parameters:

  | buffer | The string to parse.
  | The | objects to build.

Returns:
  true on success or false if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError |

Since gtkmm 2.14:

bool Gtk::Builder::add_from_string | ( | const Glib::ustring & | buffer,
|  | const Glib::ustring & | object_id |
| ) |  |  |

Parses a string containing a GtkBuilder UI definition, building only the requested object, and merges it with the current contents of the builder.

Parameters:

  | buffer | The string to parse.
  | The | object to build.

Returns:
  true on success or false if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError |

Since gtkmm 2.14:

bool Gtk::Builder::add_from_string | ( | const Glib::ustring & | buffer,
|  | const char * | object_id |
| ) |  |  |

Parses a string containing a GtkBuilder UI definition, building only the requested object, and merges it with the current contents of the builder.

Parameters:

  | buffer | The string to parse.
  | The | object to build.

Returns:
  true on success or false if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError |

Since gtkmm 2.16:

bool Gtk::Builder::add_from_string | ( | const Glib::ustring & | buffer | ) |

Parses a string containing a GtkBuilder UI definition and merges it with the current contents of the builder.

Parameters:

  | buffer | The string to parse.

Returns:
  true on success or false if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError |

Since gtkmm 2.12:

static Glib::RefPtr<Builder> Gtk::Builder::create | ( |  | ) | `[static]`

Creates a new builder object.

static Glib::RefPtr<Builder> Gtk::Builder::create_from_file | ( | const std::string & | filename,
|  | const Glib::StringArrayHandle & | object_ids |
| ) |  |  | `[static]`

Parses a file containing a GtkBuilder UI definition, building only the requested objects.

If you are adding an object that depends on an object that is not its child (for instance a GtkTreeView that depends on its GtkTreeModel), you have to explicitely list all of them.

Parameters:

  | filename | the name of the file to parse.
  | object_ids | The objects to build.

Returns:
  A new Builder object, or a null pointer if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError,Glib::FileError |

Since gtkmm 2.14:

static Glib::RefPtr<Builder> Gtk::Builder::create_from_file | ( | const std::string & | filename,
|  | const char * | object_id |
| ) |  |  | `[static]`

Parses a file containing a GtkBuilder UI definition, building only the requested object.

If you are adding an object that depends on an object that is not its child (for instance a GtkTreeView that depends on its GtkTreeModel), you have to explicitely list all of them.

Parameters:

  | filename | the name of the file to parse.
  | object_id | The object to build.

Returns:
  A new Builder object, or a null pointer if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError,Glib::FileError |

Since gtkmm 2.16:

static Glib::RefPtr<Builder> Gtk::Builder::create_from_file | ( | const std::string & | filename,
|  | const Glib::ustring & | object_id |
| ) |  |  | `[static]`

Parses a file containing a GtkBuilder UI definition, building only the requested object.

If you are adding an object that depends on an object that is not its child (for instance a GtkTreeView that depends on its GtkTreeModel), you have to explicitely list all of them.

Parameters:

  | filename | the name of the file to parse.
  | object_id | The object to build.

Returns:
  A new Builder object, or a null pointer if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError,Glib::FileError |

Since gtkmm 2.14:

static Glib::RefPtr<Builder> Gtk::Builder::create_from_file | ( | const std::string & | filename | ) | `[static]`

Parses a file containing a GtkBuilder UI definition.

Parameters:

  | filename | the name of the file to parse.

Returns:
  A new Builder object, or a null pointer if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError,Glib::FileError |

Since gtkmm 2.12:

static Glib::RefPtr<Builder> Gtk::Builder::create_from_string | ( | const Glib::ustring & | buffer,
|  | const Glib::StringArrayHandle & | object_ids |
| ) |  |  | `[static]`

Parses a string containing a GtkBuilder UI definition building only the requested objects.

If you are adding an object that depends on an object that is not its child (for instance a GtkTreeView that depends on its GtkTreeModel), you have to explicitely list all of them.

Parameters:

  | buffer | the string to parse
  | object_ids | The objects to build.

Returns:
  A new Builder object, or a null pointer if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError |

Since gtkmm 2.14:

static Glib::RefPtr<Builder> Gtk::Builder::create_from_string | ( | const Glib::ustring & | buffer,
|  | const Glib::ustring & | object_id |
| ) |  |  | `[static]`

Parses a string containing a GtkBuilder UI definition building only the requested object.

Parameters:

  | buffer | The string to parse.
  | object_id | The object to build.

Returns:
  A new Builder object, or a null pointer if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError |

Since gtkmm 2.14:

static Glib::RefPtr<Builder> Gtk::Builder::create_from_string | ( | const Glib::ustring & | buffer,
|  | const char * | object_id |
| ) |  |  | `[static]`

Parses a string containing a GtkBuilder UI definition building only the requested object.

Parameters:

  | buffer | The string to parse.
  | object_id | The object to build.

Returns:
  A new Builder object, or a null pointer if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError |

Since gtkmm 2.16:

static Glib::RefPtr<Builder> Gtk::Builder::create_from_string | ( | const Glib::ustring & | buffer | ) | `[static]`

Parses a string containing a GtkBuilder UI definition.

Parameters:

  | buffer,: | the string to parse

Returns:
  A new Builder object, or a null pointer if an error occurred.

Exceptions:

  | BuilderError,Glib::MarkupError |

Since gtkmm 2.12:

GtkWidget* Gtk::Builder::get_cwidget | ( | const Glib::ustring & | name | ) | `[protected]`

Glib::RefPtr<Glib::Object> Gtk::Builder::get_object | ( | const Glib::ustring & | name | ) |

Gets the object named name.

Note that this function does not increment the reference count of the returned object.

Since gtkmm 2.12:

Parameters:

  | name | Name of object to get.

Returns:
  The object named name or `0` if it could not be found in the object tree.

Glib::ustring Gtk::Builder::get_translation_domain | ( |  | ) | const

Gets the translation domain of builder.

Since gtkmm 2.12:

Returns:
  The translation domain. This string is owned by the builder object and must not be modified or freed.

template <class T_Widget >

void Gtk::Builder::get_widget | ( | const Glib::ustring & | name,
|  | T_Widget *& | widget |
| ) |  |  | `[inline]`

Get a widget from the Builder file.

For instance:

     Gtk::Table* pTable = 0;
     refXml->get_widget("mytable", pTable);

This method prints a warning message to the console if the widget doesn't exist or has the wrong type, so you don't need to check that manually.

Note that you are responsible for deleting top-level widgets (windows and dialogs) instantiated by the Builder object. Other widgets are instantiated as managed so they will be deleted automatically if you add them to a container widget.

Parameters:

  | name | The name of the widget.

Return values:

  | widget | A pointer to the widget, or `0` on failure.

Gtk::Widget* Gtk::Builder::get_widget_checked | ( | const Glib::ustring & | name,
|  | GType | type |
| ) |  |  | `[protected]`

template <class T_Widget >

void Gtk::Builder::get_widget_derived | ( | const Glib::ustring & | name,
|  | T_Widget *& | widget |
| ) |  |  | `[inline]`

This provides a pointer to a widget whose details are specified in the GtkBuilder file, but which is implemented by your own derived class.

Your class must have a constructor like so:

     DerivedDialog::DerivedDialog(BaseObjectType* cobject, const Glib::RefPtr<Gtk::Builder>& refBuilder)
     : Gtk::Dialog(cobject) //Calls the base class constructor

For instance:

     Gtk::DerivedBox* pBox = 0;
     refXml->get_widget_derived("mybox", pBox);

Parameters:

  | name | The name of the widget.

Return values:

  | widget | A pointer to the widget, or `0` on failure.

const GtkBuilder* Gtk::Builder::gobj | ( |  | ) | const`[inline]`

Provides access to the underlying C GObject.

Reimplemented from Glib::ObjectBase.

GtkBuilder* Gtk::Builder::gobj | ( |  | ) | `[inline]`

Provides access to the underlying C GObject.

Reimplemented from Glib::ObjectBase.

GtkBuilder* Gtk::Builder::gobj_copy | ( |  | ) |

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

Glib::PropertyProxy_ReadOnly<Glib::ustring> Gtk::Builder::property_translation_domain | ( |  | ) | const

The translation domain used by gettext.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns:
  A PropertyProxy that allows you to get or set the property of the value, or receive notification when the value of the property changes.

Glib::PropertyProxy<Glib::ustring> Gtk::Builder::property_translation_domain | ( |  | ) |

The translation domain used by gettext.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns:
  A PropertyProxy that allows you to get or set the property of the value, or receive notification when the value of the property changes.

void Gtk::Builder::set_translation_domain | ( | const Glib::ustring & | domain | ) |

Sets the translation domain of builder.

See Gtk::Builder:translation-domain.

Since gtkmm 2.12:

Parameters:

  | domain | The translation domain or `0`.

## Friends And Related Function Documentation

Glib::RefPtr< Gtk::Builder > wrap | ( | GtkBuilder * | 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:

- gtkmm/builder.h