GI.Gtk.Objects.FontButton

The FontButton is a button which displays the currently selected font an allows to open a font chooser dialog to change the font. It is suitable widget for selecting a font in a preference dialog.

CSS nodes

GtkFontButton has a single CSS node with name button and style class .font.

Exported types

newtype FontButton

Memory-managed wrapper type.

Constructors

FontButton (ManagedPtr FontButton)

Instances

Eq FontButton

Defined in GI.Gtk.Objects.FontButton

Methods

(==) :: FontButton -> FontButton -> Bool

(/=) :: FontButton -> FontButton -> Bool

IsGValue FontButton

Convert FontButton to and from GValue with toGValue and fromGValue.

Defined in GI.Gtk.Objects.FontButton

Methods

toGValue :: FontButton -> IO GValue

fromGValue :: GValue -> IO FontButton

ManagedPtrNewtype FontButton

Defined in GI.Gtk.Objects.FontButton

Methods

toManagedPtr :: FontButton -> ManagedPtr FontButton

TypedObject FontButton

Defined in GI.Gtk.Objects.FontButton

Methods

glibType :: IO GType

GObject FontButton

Defined in GI.Gtk.Objects.FontButton

HasParentTypes FontButton

Defined in GI.Gtk.Objects.FontButton

type ParentTypes FontButton

Defined in GI.Gtk.Objects.FontButton

type ParentTypes FontButton = '[Button, Bin, Container, Widget, Object, ImplementorIface, Actionable, Activatable, Buildable, FontChooser]

class (GObject o, IsDescendantOf FontButton o) => IsFontButton o

Type class for types which can be safely cast to FontButton, for instance with toFontButton.

Instances

(GObject o, IsDescendantOf FontButton o) => IsFontButton o

Defined in GI.Gtk.Objects.FontButton

toFontButton :: (MonadIO m, IsFontButton o) => o -> m FontButton

Cast to FontButton, for types for which this is known to be safe. For general casts, use castTo.

Methods

Overloaded methods

getFontName

fontButtonGetFontName

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> m Text

Returns: an internal copy of the font name which must not be freed.

Deprecated: (Since version 3.22)Use fontChooserGetFont instead

Retrieves the name of the currently selected font. This name includes style and size information as well. If you want to render something with the font, use this string with fontDescriptionFromString . If you’re interested in peeking certain values (family name, style, size, weight) just query these properties from the FontDescription object.

Since: 2.4

getShowSize

fontButtonGetShowSize

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> m Bool

Returns: whether the font size will be shown in the label.

Returns whether the font size will be shown in the label.

Since: 2.4

getShowStyle

fontButtonGetShowStyle

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> m Bool

Returns: whether the font style will be shown in the label.

Returns whether the name of the font style will be shown in the label.

Since: 2.4

getTitle

fontButtonGetTitle

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> m Text

Returns: an internal copy of the title string which must not be freed.

Retrieves the title of the font chooser dialog.

Since: 2.4

getUseFont

fontButtonGetUseFont

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> m Bool

Returns: whether the selected font is used in the label.

Returns whether the selected font is used in the label.

Since: 2.4

getUseSize

fontButtonGetUseSize

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> m Bool

Returns: whether the selected size is used in the label.

Returns whether the selected size is used in the label.

Since: 2.4

new

fontButtonNew

Arguments

:: (HasCallStack, MonadIO m)

=> m FontButton

Returns: a new font picker widget.

Creates a new font picker widget.

Since: 2.4

newWithFont

fontButtonNewWithFont

Arguments

:: (HasCallStack, MonadIO m)

=> Text

fontname: Name of font to display in font chooser dialog

-> m FontButton

Returns: a new font picker widget.

Creates a new font picker widget.

Since: 2.4

setFontName

fontButtonSetFontName

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> Text

fontname: Name of font to display in font chooser dialog

-> m Bool

Returns: True

Deprecated: (Since version 3.22)Use fontChooserSetFont instead

Sets or updates the currently-displayed font in font picker dialog.

Since: 2.4

setShowSize

fontButtonSetShowSize

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> Bool

showSize: True if font size should be displayed in dialog.

-> m ()

If showSize is True, the font size will be displayed along with the name of the selected font.

Since: 2.4

setShowStyle

fontButtonSetShowStyle

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> Bool

showStyle: True if font style should be displayed in label.

-> m ()

If showStyle is True, the font style will be displayed along with name of the selected font.

Since: 2.4

setTitle

fontButtonSetTitle

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> Text

title: a string containing the font chooser dialog title

-> m ()

Sets the title for the font chooser dialog.

Since: 2.4

setUseFont

fontButtonSetUseFont

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> Bool

useFont: If True, font name will be written using font chosen.

-> m ()

If useFont is True, the font name will be written using the selected font.

Since: 2.4

setUseSize

fontButtonSetUseSize

Arguments

:: (HasCallStack, MonadIO m, IsFontButton a)

=> a

fontButton: a FontButton

-> Bool

useSize: If True, font name will be written using the selected size.

-> m ()

If useSize is True, the font name will be written using the selected size.

Since: 2.4

Properties

fontName

The name of the currently selected font.

Since: 2.4

clearFontButtonFontName :: (MonadIO m, IsFontButton o) => o -> m ()

Set the value of the “font-name” property to Nothing. When overloading is enabled, this is equivalent to

clear #fontName

constructFontButtonFontName :: (IsFontButton o, MonadIO m) => Text -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “font-name” property. This is rarely needed directly, but it is used by new.

getFontButtonFontName :: (MonadIO m, IsFontButton o) => o -> m Text

Get the value of the “font-name” property. When overloading is enabled, this is equivalent to

get fontButton #fontName

setFontButtonFontName :: (MonadIO m, IsFontButton o) => o -> Text -> m ()

Set the value of the “font-name” property. When overloading is enabled, this is equivalent to

set fontButton [ #fontName := value ]

showSize

If this property is set to True, the selected font size will be shown in the label. For a more WYSIWYG way to show the selected size, see the useSize property.

Since: 2.4

constructFontButtonShowSize :: (IsFontButton o, MonadIO m) => Bool -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “show-size” property. This is rarely needed directly, but it is used by new.

getFontButtonShowSize :: (MonadIO m, IsFontButton o) => o -> m Bool

Get the value of the “show-size” property. When overloading is enabled, this is equivalent to

get fontButton #showSize

setFontButtonShowSize :: (MonadIO m, IsFontButton o) => o -> Bool -> m ()

Set the value of the “show-size” property. When overloading is enabled, this is equivalent to

set fontButton [ #showSize := value ]

showStyle

If this property is set to True, the name of the selected font style will be shown in the label. For a more WYSIWYG way to show the selected style, see the useFont property.

Since: 2.4

constructFontButtonShowStyle :: (IsFontButton o, MonadIO m) => Bool -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “show-style” property. This is rarely needed directly, but it is used by new.

getFontButtonShowStyle :: (MonadIO m, IsFontButton o) => o -> m Bool

Get the value of the “show-style” property. When overloading is enabled, this is equivalent to

get fontButton #showStyle

setFontButtonShowStyle :: (MonadIO m, IsFontButton o) => o -> Bool -> m ()

Set the value of the “show-style” property. When overloading is enabled, this is equivalent to

set fontButton [ #showStyle := value ]

title

The title of the font chooser dialog.

Since: 2.4

constructFontButtonTitle :: (IsFontButton o, MonadIO m) => Text -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “title” property. This is rarely needed directly, but it is used by new.

getFontButtonTitle :: (MonadIO m, IsFontButton o) => o -> m Text

Get the value of the “title” property. When overloading is enabled, this is equivalent to

get fontButton #title

setFontButtonTitle :: (MonadIO m, IsFontButton o) => o -> Text -> m ()

Set the value of the “title” property. When overloading is enabled, this is equivalent to

set fontButton [ #title := value ]

useFont

If this property is set to True, the label will be drawn in the selected font.

Since: 2.4

constructFontButtonUseFont :: (IsFontButton o, MonadIO m) => Bool -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “use-font” property. This is rarely needed directly, but it is used by new.

getFontButtonUseFont :: (MonadIO m, IsFontButton o) => o -> m Bool

Get the value of the “use-font” property. When overloading is enabled, this is equivalent to

get fontButton #useFont

setFontButtonUseFont :: (MonadIO m, IsFontButton o) => o -> Bool -> m ()

Set the value of the “use-font” property. When overloading is enabled, this is equivalent to

set fontButton [ #useFont := value ]

useSize

If this property is set to True, the label will be drawn with the selected font size.

Since: 2.4

constructFontButtonUseSize :: (IsFontButton o, MonadIO m) => Bool -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “use-size” property. This is rarely needed directly, but it is used by new.

getFontButtonUseSize :: (MonadIO m, IsFontButton o) => o -> m Bool

Get the value of the “use-size” property. When overloading is enabled, this is equivalent to

get fontButton #useSize

setFontButtonUseSize :: (MonadIO m, IsFontButton o) => o -> Bool -> m ()

Set the value of the “use-size” property. When overloading is enabled, this is equivalent to

set fontButton [ #useSize := value ]

Signals

fontSet

type C_FontButtonFontSetCallback = Ptr () -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type FontButtonFontSetCallback = IO ()

The fontSet signal is emitted when the user selects a font. When handling this signal, use fontChooserGetFont to find out which font was just selected.

Note that this signal is only emitted when the user changes the font. If you need to react to programmatic font changes as well, use the notify[font](#g:signal:font) signal.

Since: 2.4

afterFontButtonFontSet :: (IsFontButton a, MonadIO m) => a -> FontButtonFontSetCallback -> m SignalHandlerId

Connect a signal handler for the fontSet signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after fontButton #fontSet callback

genClosure_FontButtonFontSet :: MonadIO m => FontButtonFontSetCallback -> m (GClosure C_FontButtonFontSetCallback)

Wrap the callback into a GClosure.

mk_FontButtonFontSetCallback :: C_FontButtonFontSetCallback -> IO (FunPtr C_FontButtonFontSetCallback)

Generate a function pointer callable from C code, from a C_FontButtonFontSetCallback.

noFontButtonFontSetCallback :: Maybe FontButtonFontSetCallback

A convenience synonym for Nothing :: Maybe FontButtonFontSetCallback.

onFontButtonFontSet :: (IsFontButton a, MonadIO m) => a -> FontButtonFontSetCallback -> m SignalHandlerId

Connect a signal handler for the fontSet signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on fontButton #fontSet callback

wrap_FontButtonFontSetCallback :: FontButtonFontSetCallback -> C_FontButtonFontSetCallback

Wrap a FontButtonFontSetCallback into a C_FontButtonFontSetCallback.