gtk3-0.14.2: Binding to the Gtk+ 3 graphical user interface library

Maintainergtk2hs-users@lists.sourceforge.net
Stabilityprovisional
Portabilityportable (depends on GHC)
Safe HaskellNone
LanguageHaskell98

Graphics.UI.Gtk.Layout.AspectFrame

Contents

Description

A frame that constrains its child to a particular aspect ratio

Synopsis

Detail

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.

Class Hierarchy

| GObject
| +----Object
| +----Widget
| +----Container
| +----Bin
| +----Frame
| +----AspectFrame

Types

data AspectFrame Source

Instances

class FrameClass o => AspectFrameClass o Source

Instances

castToAspectFrame :: GObjectClass obj => obj -> AspectFrame Source

gTypeAspectFrame :: GType Source

toAspectFrame :: AspectFrameClass o => o -> AspectFrame Source

Constructors

aspectFrameNew Source

Arguments

:: 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 (left aligned) to 1.0 (right aligned)

-> Maybe Float

ratio - The desired aspect ratio. If Nothing the aspect ratio is taken from the requistion of the child.

-> IO AspectFrame 

Create a new AspectFrame.

The frame may be augmented with a label which can be set by frameSetLabel.

Methods

aspectFrameSet Source

Arguments

:: AspectFrameClass self 
=> self 
-> 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 (left aligned) to 1.0 (right aligned)

-> Maybe Float

ratio - The desired aspect ratio. If Nothing the aspect ratio is taken from the requistion of the child.

-> IO () 

Set parameters for an existing AspectFrame.

Attributes

aspectFrameXAlign :: AspectFrameClass self => Attr self Float Source

X alignment of the child.

Allowed values: [0,1]

Default value: 0.5

aspectFrameYAlign :: AspectFrameClass self => Attr self Float Source

Y alignment of the child.

Allowed values: [0,1]

Default value: 0.5

aspectFrameRatio :: AspectFrameClass self => Attr self Float Source

Aspect ratio if obey_child is False.

Allowed values: [1e-04,10000]

Default value: 0.5

aspectFrameObeyChild :: AspectFrameClass self => Attr self Bool Source

Force aspect ratio to match that of the frame's child.

Default value: True