Gtk::EntryBuffer Class Reference

A Text buffer for the Entry widget. More...

Inherits Glib::Object.

Collaboration diagram for Gtk::EntryBuffer:

[legend]

List of all members.

Public Member Functions
virtual	~EntryBuffer ()
GtkEntryBuffer*	gobj ()
	Provides access to the underlying C GObject.
const GtkEntryBuffer*	gobj () const
	Provides access to the underlying C GObject.
GtkEntryBuffer*	gobj_copy ()
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
gsize	get_bytes () const
	Retrieves the length in bytes of the buffer.
guint	get_length () const
	Retrieves the length in characters of the buffer.
Glib::ustring	get_text () const
	Retrieves the contents of the buffer.
void	set_text (const Glib::ustring& text)
	Sets the text in the buffer.
void	set_max_length (int max_length)
	Sets the maximum allowed length of the contents of the buffer.
int	get_max_length () const
	Retrieves the maximum allowed length of the text in buffer.
guint	insert_text (guint position, const Glib::ustring& text)
	Inserts text into the contents of the buffer, at position position.
guint	delete_text (guint position, int n_chars)
	Deletes a sequence of characters from the buffer.
void	emit_inserted_text (guint position, const Glib::ustring& text)
	Used when deriving from EntryBuffer.
void	emit_deleted_text (guint position, guint n_chars)
	Used when subclassing Gtk::EntryBuffer.
Static Public Member Functions
static Glib::RefPtr< EntryBuffer >	create ()
	Create a new EntryBuffer object with no text.
static Glib::RefPtr< EntryBuffer >	create (const Glib::ustring& text)
	Create a new EntryBuffer object.
Protected Member Functions
	EntryBuffer ()
	Create a new EntryBuffer object with no text.
	EntryBuffer (const Glib::ustring& text)
	Create a new EntryBuffer object.
Related Functions
(Note that these are not member functions.)
Glib::RefPtr< Gtk::EntryBuffer >	wrap (GtkEntryBuffer* object, bool take_copy=false)
	A Glib::wrap() method for this object.

---

Detailed Description

A Text buffer for the Entry widget.

The EntryBuffer class contains the actual text displayed in an Entry widget.

A single EntryBuffer object can be shared by multiple Entry widgets which will then share the same text content, but not the cursor position, visibility attributes, icon etc.

EntryBuffer may be derived from. Such a derived class might allow text to be stored in an alternate location, such as non-pageable memory, useful in the case of important passwords. Or a derived class could integrate with an application's concept of undo/redo.

@newin{2,20}

---

Constructor & Destructor Documentation

virtual Gtk::EntryBuffer::~EntryBuffer

(

)

[virtual]

Gtk::EntryBuffer::EntryBuffer

(

)

[protected]

Create a new EntryBuffer object with no text.

Gtk::EntryBuffer::EntryBuffer

(

const Glib::ustring &

text

)

[explicit, protected]

Create a new EntryBuffer object.

Parameters:

text

Initial buffer text.

---

Member Function Documentation

static Glib::RefPtr<EntryBuffer> Gtk::EntryBuffer::create

(

const Glib::ustring &

text

)

[static]

Create a new EntryBuffer object.

Parameters:

text

Initial buffer text.

static Glib::RefPtr<EntryBuffer> Gtk::EntryBuffer::create

(

)

[static]

Create a new EntryBuffer object with no text.

guint Gtk::EntryBuffer::delete_text	(	guint	position,
		int	n_chars
	)

Deletes a sequence of characters from the buffer.

n_chars characters are deleted starting at position. If n_chars is negative, then all characters until the end of the text are deleted.

If position or n_chars are out of bounds, then they are coerced to sane values.

Note that the positions are specified in characters, not bytes.

Since gtkmm 2.18:

Parameters:

	position	Position at which to delete text.
	n_chars	Number of characters to delete.

Returns:

The number of characters deleted.

void Gtk::EntryBuffer::emit_deleted_text	(	guint	position,
		guint	n_chars
	)

Used when subclassing Gtk::EntryBuffer.

Since gtkmm 2.18:

Parameters:

	position	Position at which text was deleted.
	n_chars	Number of characters deleted.

void Gtk::EntryBuffer::emit_inserted_text	(	guint	position,
		const Glib::ustring &	text
	)

Used when deriving from EntryBuffer.

Parameters:

	position	Position at which text was inserted.
	text	Text that was inserted.

gsize Gtk::EntryBuffer::get_bytes

(

)

const

Retrieves the length in bytes of the buffer.

See get_length().

Since gtkmm 2.18:

Returns:

The byte length of the buffer.

guint Gtk::EntryBuffer::get_length

(

)

const

Retrieves the length in characters of the buffer.

Since gtkmm 2.18:

Returns:

The number of characters in the buffer.

int Gtk::EntryBuffer::get_max_length

(

)

const

Retrieves the maximum allowed length of the text in buffer.

See set_max_length().

Since gtkmm 2.18:

Returns:

The maximum allowed number of characters in Gtk::EntryBuffer, or 0 if there is no maximum.

Glib::ustring Gtk::EntryBuffer::get_text

(

)

const

Retrieves the contents of the buffer.

The memory pointer returned by this call will not change unless this object emits a signal, or is finalized.

Since gtkmm 2.18:

Returns:

A pointer to the contents of the widget as a string. This string points to internally allocated storage in the buffer and must not be freed, modified or stored.

const GtkEntryBuffer* Gtk::EntryBuffer::gobj

(

)

const [inline]

Provides access to the underlying C GObject.

Reimplemented from Glib::ObjectBase.

GtkEntryBuffer* Gtk::EntryBuffer::gobj

(

)

[inline]

Provides access to the underlying C GObject.

Reimplemented from Glib::ObjectBase.

GtkEntryBuffer* Gtk::EntryBuffer::gobj_copy

(

)

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

guint Gtk::EntryBuffer::insert_text	(	guint	position,
		const Glib::ustring &	text
	)

Inserts text into the contents of the buffer, at position position.

Parameters:

	position	The position at which to insert text.
	text	The text to insert into the buffer.

Returns:

The number of characters actually inserted.

void Gtk::EntryBuffer::set_max_length

(

int

max_length

)

Sets the maximum allowed length of the contents of the buffer.

If the current contents are longer than the given length, then they will be truncated to fit.

Since gtkmm 2.18:

Parameters:

max_length

The maximum length of the entry buffer, or 0 for no maximum. (other than the maximum length of entries.) The value passed in will be clamped to the range 0-65536.

void Gtk::EntryBuffer::set_text

(

const Glib::ustring &

text

)

Sets the text in the buffer.

This is roughly equivalent to calling delete_text() and insert_text().

Parameters:

text

The text to set in the buffer.

---

Friends And Related Function Documentation

Glib::RefPtr< Gtk::EntryBuffer > wrap	(	GtkEntryBuffer *	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/entrybuffer.h