Gtk::Tooltip Class Reference

Add tips to your widgets. More...

#include <gtkmm/tooltip.h>

Inheritance diagram for Gtk::Tooltip:

Public Member Functions
	Tooltip (Tooltip &&src) noexcept
Tooltip &	operator= (Tooltip &&src) noexcept
	~Tooltip () noexcept override
GtkTooltip *	gobj ()
	Provides access to the underlying C GObject.
const GtkTooltip *	gobj () const
	Provides access to the underlying C GObject.
GtkTooltip *	gobj_copy ()
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
void	set_markup (const Glib::ustring &markup)
	Sets the text of the tooltip to be markup.
void	unset_markup ()
	Hide the label.
void	set_text (const Glib::ustring &text)
	Sets the text of the tooltip to be text.
void	unset_text ()
	Hide the label.
void	set_icon (const Glib::RefPtr< Gdk::Paintable > &paintable)
	Sets the icon of the tooltip (which is in front of the text) to be paintable.
void	set_icon (const Glib::RefPtr< Gio::Icon > &gicon)
	Sets the icon of the tooltip (which is in front of the text) to be the icon indicated by gicon with the size indicated by size.
void	set_icon (const Glib::ustring &icon_name)
	Sets the icon of the tooltip (which is in front of the text) to be the icon indicated by icon_name with the size indicated by size.
void	unset_icon ()
	Hide the image.
void	set_custom (Widget &custom_widget)
	Replaces the widget packed into the tooltip with custom_widget.
void	unset_custom ()
	Remove the custom widget.
void	set_tip_area (const Gdk::Rectangle &rect)
	Sets the area of the widget, where the contents of this tooltip apply, to be rect (in widget coordinates).

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

Related Symbols
(Note that these are not member symbols.)
Glib::RefPtr< Gtk::Tooltip >	wrap (GtkTooltip *object, bool take_copy=false)
	A Glib::wrap() method for this object.

Detailed Description

Add tips to your widgets.

Basic tooltips can be realized simply by using set_tooltip_text() or set_tooltip_markup() without any explicit tooltip object.

When you need a tooltip with a little more fancy contents, like adding an image, or you want the tooltip to have different contents per Gtk::TreeView row or cell, you will have to do a little more work:

• Call Gtk::Widget:set_has_tooltip(); this will make GTK+ monitor the widget for motion and related events which are needed to determine when and where to show a tooltip.
• Connect to Gtk::Widget::signal_query_tooltip(). This signal will be emitted when a tooltip is supposed to be shown. One of the arguments passed to the signal handler is a Gtk::Tooltip object. This is the object that we are about to display as a tooltip, and can be manipulated in your callback using functions like Gtk::Tooltip::set_icon(). There are functions for setting the tooltip's markup, setting an image from a named icon, or even putting in a custom widget.

• Return true from your query-tooltip handler. This causes the tooltip to be show. If you return false, it will not be shown.

  Since gtkmm 2.12:

Constructor & Destructor Documentation

Tooltip()

Gtk::Tooltip::Tooltip ( Tooltip &&  src )

noexcept

~Tooltip()

Gtk::Tooltip::~Tooltip ( )

overridenoexcept

Member Function Documentation

get_type()

static GType Gtk::Tooltip::get_type ( )

static

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

gobj() [1/2]

GtkTooltip * Gtk::Tooltip::gobj ( )

inline

Provides access to the underlying C GObject.

gobj() [2/2]

const GtkTooltip * Gtk::Tooltip::gobj ( ) const

inline

Provides access to the underlying C GObject.

gobj_copy()

GtkTooltip * Gtk::Tooltip::gobj_copy

(

)

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

operator=()

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

noexcept

set_custom()

void Gtk::Tooltip::set_custom

(

Widget &

custom_widget

)

Replaces the widget packed into the tooltip with custom_widget.

custom_widget does not get destroyed when the tooltip goes away. By default a box with a Gtk::Image and Gtk::Label is embedded in the tooltip, which can be configured using set_markup() and set_icon().

Parameters

custom_widget

A Gtk::Widget, or nullptr to unset the old custom widget.

set_icon() [1/3]

void Gtk::Tooltip::set_icon

(

const Glib::RefPtr< Gdk::Paintable > &

paintable

)

Sets the icon of the tooltip (which is in front of the text) to be paintable.

If paintable is nullptr, the image will be hidden.

Parameters

paintable

A Gdk::Paintable.

set_icon() [2/3]

void Gtk::Tooltip::set_icon

(

const Glib::RefPtr< Gio::Icon > &

gicon

)

Sets the icon of the tooltip (which is in front of the text) to be the icon indicated by gicon with the size indicated by size.

If gicon is nullptr, the image will be hidden.

Parameters

gicon

A Gio::Icon representing the icon.

set_icon() [3/3]

void Gtk::Tooltip::set_icon

(

const Glib::ustring &

icon_name

)

Sets the icon of the tooltip (which is in front of the text) to be the icon indicated by icon_name with the size indicated by size.

If icon_name is nullptr, the image will be hidden.

Parameters

icon_name

An icon name.

set_markup()

void Gtk::Tooltip::set_markup

(

const Glib::ustring &

markup

)

Sets the text of the tooltip to be markup.

The string must be marked up with Pango markup. If markup is nullptr, the label will be hidden.

Parameters

markup

A string with Pango markup or N::LL.

set_text()

void Gtk::Tooltip::set_text

(

const Glib::ustring &

text

)

Sets the text of the tooltip to be text.

If text is nullptr, the label will be hidden. See also set_markup().

Parameters

text	A text string.

set_tip_area()

void Gtk::Tooltip::set_tip_area

(

const Gdk::Rectangle &

rect

)

Sets the area of the widget, where the contents of this tooltip apply, to be rect (in widget coordinates).

This is especially useful for properly setting tooltips on Gtk::TreeView rows and cells, Gtk::IconViews, etc.

For setting tooltips on Gtk::TreeView, please refer to the convenience functions for this: Gtk::TreeView::set_tooltip_row() and Gtk::TreeView::set_tooltip_cell().

Parameters

rect	A Gdk::Rectangle.

unset_custom()

void Gtk::Tooltip::unset_custom

(

)

Remove the custom widget.

Since gtkmm 3.2:

unset_icon()

void Gtk::Tooltip::unset_icon

(

)

Hide the image.

Since gtkmm 3.2:

unset_markup()

void Gtk::Tooltip::unset_markup

(

)

Hide the label.

Since gtkmm 3.2:

unset_text()

void Gtk::Tooltip::unset_text

(

)

Hide the label.

Since gtkmm 3.2:

Friends And Related Symbol Documentation

wrap()

Glib::RefPtr< Gtk::Tooltip > wrap ( GtkTooltip *  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.