GI.Gtk.Objects.AspectFrame

The AspectFrame is useful when you want pack a widget so that it can resize but always retains the same aspect ratio. For instance, one might be drawing a small preview of a larger image. AspectFrame derives from Frame, so it can draw a label and a frame around the child. The frame will be “shrink-wrapped” to the size of the child.

CSS nodes

GtkAspectFrame uses a CSS node with name frame.

Exported types

newtype AspectFrame

Constructors

AspectFrame (ManagedPtr AspectFrame)

Instances

GObject AspectFrame

Methods

gobjectType :: AspectFrame -> IO GType

IsImplementorIface AspectFrame

IsObject AspectFrame

IsWidget AspectFrame

IsFrame AspectFrame

IsContainer AspectFrame

IsBin AspectFrame

IsBuildable AspectFrame

IsAspectFrame AspectFrame

class GObject o => IsAspectFrame o

Instances

(GObject a, UnknownAncestorError Constraint AspectFrame a) => IsAspectFrame a

IsAspectFrame AspectFrame

toAspectFrame :: (MonadIO m, IsAspectFrame o) => o -> m AspectFrame

noAspectFrame :: Maybe AspectFrame

Methods

new

aspectFrameNew

Arguments

:: (HasCallStack, MonadIO m)

=> Maybe Text

label: Label text.

-> Float

xalign: Horizontal alignment of the child within the allocation of the AspectFrame. This ranges from 0.0 (left aligned) to 1.0 (right aligned)

-> Float

yalign: Vertical alignment of the child within the allocation of the AspectFrame. This ranges from 0.0 (top aligned) to 1.0 (bottom aligned)

-> Float

ratio: The desired aspect ratio.

-> Bool

obeyChild: If True, ratio is ignored, and the aspect ratio is taken from the requistion of the child.

-> m AspectFrame

Returns: the new AspectFrame.

Create a new AspectFrame.

set

aspectFrameSet

Arguments

:: (HasCallStack, MonadIO m, IsAspectFrame a)

=> a

aspectFrame: a AspectFrame

-> Float

xalign: Horizontal alignment of the child within the allocation of the AspectFrame. This ranges from 0.0 (left aligned) to 1.0 (right aligned)

-> Float

yalign: Vertical alignment of the child within the allocation of the AspectFrame. This ranges from 0.0 (top aligned) to 1.0 (bottom aligned)

-> Float

ratio: The desired aspect ratio.

-> Bool

obeyChild: If True, ratio is ignored, and the aspect ratio is taken from the requistion of the child.

-> m ()

Set parameters for an existing AspectFrame.

Properties

obeyChild

constructAspectFrameObeyChild :: IsAspectFrame o => Bool -> IO (GValueConstruct o)

getAspectFrameObeyChild :: (MonadIO m, IsAspectFrame o) => o -> m Bool

setAspectFrameObeyChild :: (MonadIO m, IsAspectFrame o) => o -> Bool -> m ()

ratio

constructAspectFrameRatio :: IsAspectFrame o => Float -> IO (GValueConstruct o)

getAspectFrameRatio :: (MonadIO m, IsAspectFrame o) => o -> m Float

setAspectFrameRatio :: (MonadIO m, IsAspectFrame o) => o -> Float -> m ()

xalign

constructAspectFrameXalign :: IsAspectFrame o => Float -> IO (GValueConstruct o)

getAspectFrameXalign :: (MonadIO m, IsAspectFrame o) => o -> m Float

setAspectFrameXalign :: (MonadIO m, IsAspectFrame o) => o -> Float -> m ()

yalign

constructAspectFrameYalign :: IsAspectFrame o => Float -> IO (GValueConstruct o)

getAspectFrameYalign :: (MonadIO m, IsAspectFrame o) => o -> m Float

setAspectFrameYalign :: (MonadIO m, IsAspectFrame o) => o -> Float -> m ()