Base class for text-editing widgets. More...

#include <gtkmm/editable.h>

Inheritance diagram for Gtk::Editable:

Public Member Functions
	Editable (Editable&& src) noexcept
Editable&	operator= (Editable&& src) noexcept
	~Editable () noexceptoverride
GtkEditable*	gobj ()
	Provides access to the underlying C GObject. More...
const GtkEditable*	gobj () const
	Provides access to the underlying C GObject. More...
void	cut_clipboard ()
	Removes the contents of the currently selected content in the editable and puts it on the clipboard. More...
void	copy_clipboard ()
	Copies the contents of the currently selected content in the editable and puts it on the clipboard. More...
void	paste_clipboard ()
	Pastes the content of the clipboard to the current position of the cursor in the editable. More...
void	delete_selection ()
	Deletes the currently selected text of the editable. More...
void	set_editable (bool is_editable=true)
	Determines if the user can edit the text in the editable widget or not. More...
bool	get_editable () const
	Retrieves whether editable is editable. More...
void	insert_text (const Glib::ustring& new_text, int new_text_length, int& position)
	Inserts new_text_length bytes of new_text into the contents of the widget, at position position. More...
void	delete_text (int start_pos, int end_pos)
	Deletes a sequence of characters. More...
Glib::ustring	get_chars (int start_pos, int end_pos) const
	Retrieves a sequence of characters. More...
void	select_region (int start_pos, int end_pos)
	Selects a region of text. More...
bool	get_selection_bounds (int& start_pos, int& end_pos) const
	Retrieves the selection bound of the editable. More...
void	set_position (int position)
	Sets the cursor position in the editable to the given value. More...
int	get_position () const
	Retrieves the current position of the cursor relative to the start of the content of the editable. More...
Glib::SignalProxy< void, const Glib::ustring&, int* >	signal_insert_text ()
Glib::SignalProxy< void, int, int >	signal_delete_text ()
Glib::SignalProxy< void >	signal_changed ()
Public Member Functions inherited from Glib::Interface
	Interface ()
	Interface (Interface &&src) noexcept
Interface &	operator= (Interface &&src) noexcept
	Interface (const Glib::Interface_Class &interface_class)
	Interface (GObject *castitem)
	~Interface () noexceptoverride
	Interface (const Interface &)=delete
Interface &	operator= (const Interface &)=delete
GObject *	gobj ()
const GObject *	gobj () const
Public Member Functions inherited from Glib::ObjectBase
	ObjectBase (const ObjectBase &)=delete
ObjectBase &	operator= (const ObjectBase &)=delete
void	set_property_value (const Glib::ustring &property_name, const Glib::ValueBase &value)
void	get_property_value (const Glib::ustring &property_name, Glib::ValueBase &value) const
void	set_property (const Glib::ustring &property_name, const PropertyType &value)
void	get_property (const Glib::ustring &property_name, PropertyType &value) const
void	connect_property_changed (const Glib::ustring &property_name, const sigc::slot< void > &slot)
void	connect_property_changed (const Glib::ustring &property_name, sigc::slot< void > &&slot)
sigc::connection	connect_property_changed_with_return (const Glib::ustring &property_name, const sigc::slot< void > &slot)
sigc::connection	connect_property_changed_with_return (const Glib::ustring &property_name, sigc::slot< void > &&slot)
void	freeze_notify ()
void	thaw_notify ()
virtual void	reference () const
virtual void	unreference () const
GObject *	gobj ()
const GObject *	gobj () const
GObject *	gobj_copy () const
Public Member Functions inherited from sigc::trackable
	trackable () noexcept
	trackable (const trackable &src) noexcept
	trackable (trackable &&src)
	~trackable ()
void	add_destroy_notify_callback (void *data, func_destroy_notify func) const
void	notify_callbacks ()
trackable &	operator= (const trackable &src)
trackable &	operator= (trackable &&src)
void	remove_destroy_notify_callback (void *data) const

Static Public Member Functions
static void	add_interface (GType gtype_implementer)
static GType	get_type ()
	Get the GType for this class, for use with the underlying GObject type system. More...

Protected Member Functions
	Editable ()
	You should derive from this class to use it. More...
virtual void	delete_text_vfunc (int start_pos, int end_pos)
virtual Glib::ustring	get_chars_vfunc (int start_pos, int end_pos) const
virtual void	select_region_vfunc (int start_pos, int end_pos)
virtual bool	get_selection_bounds_vfunc (int& start_pos, int& end_pos) const
virtual void	set_position_vfunc (int position)
virtual int	get_position_vfunc () const
virtual void	insert_text_vfunc (const Glib::ustring& text, int& position)
virtual void	on_insert_text (const Glib::ustring& text, int* position)
	This is a default handler for the signal signal_insert_text(). More...
virtual void	on_delete_text (int start_pos, int end_pos)
	This is a default handler for the signal signal_delete_text(). More...
virtual void	on_changed ()
	This is a default handler for the signal signal_changed(). More...
Protected Member Functions inherited from Glib::ObjectBase
	ObjectBase ()
	ObjectBase (const char *custom_type_name)
	ObjectBase (const std::type_info &custom_type_info)
	ObjectBase (ObjectBase &&src) noexcept
ObjectBase &	operator= (ObjectBase &&src) noexcept
virtual	~ObjectBase () noexcept=0
void	initialize (GObject *castitem)
void	initialize_move (GObject *castitem, Glib::ObjectBase *previous_wrapper)

Related Functions
(Note that these are not member functions.)
Glib::RefPtr< Gtk::Editable >	wrap (GtkEditable* object, bool take_copy=false)
	A Glib::wrap() method for this object. More...

Additional Inherited Members
Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify	func_destroy_notify

Detailed Description

Base class for text-editing widgets.

The Gtk::Editable class is a base class for widgets for editing text, such as Gtk::Entry. It cannot be instantiated by itself. The editable class contains functions for generically manipulating an editable widget, a large number of action signals used for key bindings, and several signals that an application can connect to to modify the behavior of a widget.

Constructor & Destructor Documentation

Gtk::Editable::Editable ( )

protected

You should derive from this class to use it.

Gtk::Editable::Editable ( Editable&&  src )

noexcept

Gtk::Editable::~Editable ( )

overridenoexcept

Member Function Documentation

static void Gtk::Editable::add_interface ( GType  gtype_implementer )

static

void Gtk::Editable::copy_clipboard

(

)

Copies the contents of the currently selected content in the editable and puts it on the clipboard.

void Gtk::Editable::cut_clipboard

(

)

Removes the contents of the currently selected content in the editable and puts it on the clipboard.

void Gtk::Editable::delete_selection

(

)

Deletes the currently selected text of the editable.

This call doesn’t do anything if there is no selected text.

void Gtk::Editable::delete_text	(	int	start_pos,
		int	end_pos
	)

Deletes a sequence of characters.

The characters that are deleted are those characters at positions from start_pos up to, but not including end_pos. If end_pos is negative, then the characters deleted are those from start_pos to the end of the text.

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

Parameters

start_pos	Start position.
end_pos	End position.

virtual void Gtk::Editable::delete_text_vfunc ( int  start_pos, int  end_pos  )

protectedvirtual

Glib::ustring Gtk::Editable::get_chars	(	int	start_pos,
		int	end_pos
	)		const

Retrieves a sequence of characters.

The characters that are retrieved are those characters at positions from start_pos up to, but not including end_pos. If end_pos is negative, then the characters retrieved are those characters from start_pos to the end of the text.

Note that positions are specified in characters, not bytes.

Parameters

start_pos	Start of text.
end_pos	End of text.

Returns

A pointer to the contents of the widget as a string. This string is allocated by the Gtk::Editable implementation and should be freed by the caller.

virtual Glib::ustring Gtk::Editable::get_chars_vfunc ( int  start_pos, int  end_pos  ) const

protectedvirtual

bool Gtk::Editable::get_editable

(

)

const

Retrieves whether editable is editable.

See set_editable().

Returns

true if editable is editable.

int Gtk::Editable::get_position

(

)

const

Retrieves the current position of the cursor relative to the start of the content of the editable.

Note that this position is in characters, not in bytes.

Returns

The cursor position.

virtual int Gtk::Editable::get_position_vfunc ( ) const

protectedvirtual

bool Gtk::Editable::get_selection_bounds	(	int &	start_pos,
		int &	end_pos
	)		const

Retrieves the selection bound of the editable.

start_pos will be filled with the start of the selection and end_pos with end. If no text was selected both will be identical and false will be returned.

Note that positions are specified in characters, not bytes.

Parameters

start_pos	Location to store the starting position, or nullptr.
end_pos	Location to store the end position, or nullptr.

Returns

true if an area is selected, false otherwise.

virtual bool Gtk::Editable::get_selection_bounds_vfunc ( int &  start_pos, int &  end_pos  ) const

protectedvirtual

static GType Gtk::Editable::get_type ( )

static

Get the GType for this class, for use with the underlying GObject type system.

GtkEditable* Gtk::Editable::gobj ( )

inline

Provides access to the underlying C GObject.

const GtkEditable* Gtk::Editable::gobj ( ) const

inline

Provides access to the underlying C GObject.

void Gtk::Editable::insert_text	(	const Glib::ustring &	new_text,
		int	new_text_length,
		int &	position
	)

Inserts new_text_length bytes of new_text into the contents of the widget, at position position.

Note that the position is in characters, not in bytes. The function updates position to point after the newly inserted text.

Parameters

new_text	The text to append.
new_text_length	The length of the text in bytes, or -1.
position	Location of the position text will be inserted at.

virtual void Gtk::Editable::insert_text_vfunc ( const Glib::ustring &  text, int &  position  )

protectedvirtual

virtual void Gtk::Editable::on_changed ( )

protectedvirtual

This is a default handler for the signal signal_changed().

virtual void Gtk::Editable::on_delete_text ( int  start_pos, int  end_pos  )

protectedvirtual

This is a default handler for the signal signal_delete_text().

virtual void Gtk::Editable::on_insert_text ( const Glib::ustring &  text, int *  position  )

protectedvirtual

This is a default handler for the signal signal_insert_text().

Editable& Gtk::Editable::operator= ( Editable&&  src )

noexcept

void Gtk::Editable::paste_clipboard

(

)

Pastes the content of the clipboard to the current position of the cursor in the editable.

void Gtk::Editable::select_region	(	int	start_pos,
		int	end_pos
	)

Selects a region of text.

The characters that are selected are those characters at positions from start_pos up to, but not including end_pos. If end_pos is negative, then the characters selected are those characters from start_pos to the end of the text.

Note that positions are specified in characters, not bytes.

Parameters

start_pos	Start of region.
end_pos	End of region.

virtual void Gtk::Editable::select_region_vfunc ( int  start_pos, int  end_pos  )

protectedvirtual

void Gtk::Editable::set_editable

(

bool

is_editable = true

)

Determines if the user can edit the text in the editable widget or not.

Parameters

is_editable

true if the user is allowed to edit the text in the widget.

void Gtk::Editable::set_position

(

int

position

)

Sets the cursor position in the editable to the given value.

The cursor is displayed before the character with the given (base 0) index in the contents of the editable. The value must be less than or equal to the number of characters in the editable. A value of -1 indicates that the position should be set after the last character of the editable. Note that position is in characters, not in bytes.

Parameters

position

The position of the cursor.

virtual void Gtk::Editable::set_position_vfunc ( int  position )

protectedvirtual

Glib::SignalProxy< void > Gtk::Editable::signal_changed

(

)

Slot Prototype:

void on_my_changed()

The signal_changed() signal is emitted at the end of a single user-visible operation on the contents of the Gtk::Editable.

E.g., a paste operation that replaces the contents of the selection will cause only one signal emission (even though it is implemented by first deleting the selection, then inserting the new content, and may cause multiple ::notify::text signals to be emitted).

Glib::SignalProxy< void,int,int > Gtk::Editable::signal_delete_text

(

)

Slot Prototype:

void on_my_delete_text(int start_pos, int end_pos)

This signal is emitted when text is deleted from the widget by the user. The default handler for this signal will normally be responsible for deleting the text, so by connecting to this signal and then stopping the signal with Glib::signal_stop_emission(), it is possible to modify the range of deleted text, or prevent it from being deleted entirely. The start_pos and end_pos parameters are interpreted as for Gtk::Editable::delete_text().

Parameters

start_pos	The starting position.
end_pos	The end position.

Glib::SignalProxy< void,const Glib::ustring&,int* > Gtk::Editable::signal_insert_text

(

)

Friends And Related Function Documentation

Glib::RefPtr< Gtk::Editable > wrap ( GtkEditable *  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.