Graphics.UI.Gtk.Entry.VScale

gtk3-0.14.6: Binding to the Gtk+ 3 graphical user interface library

Maintainer | gtk2hs-users@lists.sourceforge.net
Stability | provisional
Portability | portable (depends on GHC)
Safe Haskell | None
Language | Haskell98

Graphics.UI.Gtk.Entry.VScale

Contents

- Detail
- Class Hierarchy
- Types
- Constructors

Description

A vertical slider widget for selecting a value from a range

Synopsis

- data VScale
- class ScaleClass o => VScaleClass o
- castToVScale :: GObjectClass obj => obj -> VScale
- gTypeVScale :: GType
- toVScale :: VScaleClass o => o -> VScale
- vScaleNew :: Adjustment -> IO VScale
- vScaleNewWithRange :: Double -> Double -> Double -> IO VScale

# Detail

The `VScale` widget is used to allow the user to select a value using a vertical slider. To create one, use `vScaleNewWithRange`.

The position to show the current value, and the number of decimal places shown can be set using the parent `Scale` class's functions.

# Class Hierarchy

    | GObject
    | +----Object
    | +----Widget
    | +----Range
    | +----Scale
    | +----VScale

# Types

data VScale #

Instances

Eq VScale # |
Methods (==) :: VScale -> VScale -> Bool # (/=) :: VScale -> VScale -> Bool #
Ord VScale # |
Methods compare :: VScale -> VScale -> Ordering # (<) :: VScale -> VScale -> Bool # (<=) :: VScale -> VScale -> Bool # (>) :: VScale -> VScale -> Bool # (>=) :: VScale -> VScale -> Bool # max :: VScale -> VScale -> VScale # min :: VScale -> VScale -> VScale #
GObjectClass VScale # |
Methods toGObject :: VScale -> GObject # unsafeCastGObject :: GObject -> VScale #
VScaleClass VScale # |
ScaleClass VScale # |
RangeClass VScale # |
WidgetClass VScale # |

class ScaleClass o => VScaleClass o #

Instances

VScaleClass VScale # |

castToVScale :: GObjectClass obj => obj -> VScale #

gTypeVScale :: GType #

toVScale :: VScaleClass o => o -> VScale #

# Constructors

vScaleNew #

Arguments

:: Adjustment | `adjustment` - the `Adjustment` which sets the range of the scale.
-> IO VScale |

Creates a new `VScale`.

vScaleNewWithRange #

Arguments

:: Double | `min` - minimum value
-> Double | `max` - maximum value
-> Double | `step` - step increment (tick size) used with keyboard shortcuts
-> IO VScale |

Creates a new vertical scale widget that lets the user input a number between `min` and `max` (including `min` and `max`) with the increment `step`. `step` must be nonzero; it's the distance the slider moves when using the arrow keys to adjust the scale value.

Note that the way in which the precision is derived works best if `step` is a power of ten. If the resulting precision is not suitable for your needs, use `scaleSetDigits` to correct it.