gtk-0.14.10: Binding to the Gtk+ graphical user interface library.

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

Graphics.UI.Gtk.Selectors.HSV

Contents

Description

A 'color wheel' widget

  • Module available since Gtk+ version 2.14

Synopsis

Detail

HSV is the 'color wheel' part of a complete color selector widget. It allows to select a color by determining its HSV components in an intuitive way. Moving the selection around the outer ring changes the hue, and moving the selection point inside the inner triangle changes value and saturation.

Class Hierarchy

| GObject
| +----Object
| +----Widget
| +----HSV

Types

data HSV Source #

Instances

class WidgetClass o => HSVClass o Source #

Instances

castToHSV :: GObjectClass obj => obj -> HSV Source #

toHSV :: HSVClass o => o -> HSV Source #

Constructors

hsvNew :: IO HSV Source #

Creates a new HSV color selector.

  • Available since 2.14

Methods

hsvIsAdjusting Source #

Arguments

:: HSVClass self 
=> self 
-> IO Bool

returns True if clients can ignore changes to the color value, since they may be transitory, or False if they should consider the color value status to be final.

An HSV color selector can be said to be adjusting if multiple rapid changes are being made to its value, for example, when the user is adjusting the value with the mouse. This function queries whether the HSV color selector is being adjusted or not.

hsvToRgb Source #

Arguments

:: (Double, Double, Double)

(h, s, v) h - value for the hue s value for the saturation v value for the value

-> (Double, Double, Double)

(r, g, b) r - Return value for the red component g - Return value for the green component b - Return value for the blue component

Converts a color from HSV space to RGB. Input values must be in the [0.0, 1.0] range; output values will be in the same range.

rgbToHsv Source #

Arguments

:: (Double, Double, Double)

(r, g, b) r value for the red component g value for the green component b value for the blue component

-> (Double, Double, Double)

(h, s, v) h - Return value for the hue s - Return value for the saturation v - Return value for the value

Converts a color from RGB space to HSV. Input values must be in the [0.0, 1.0] range; output values will be in the same range.

Attributes

hsvColor :: HSVClass self => Attr self (Double, Double, Double) Source #

Color in an HSV color selector. Color component values must be in the [0.0, 1.0] range.

hsvMetrics :: HSVClass self => Attr self (Int, Int) Source #

The size and ring width of an HSV color selector.

Signals

hsvChanged :: HSVClass self => Signal self (IO ()) Source #

hsvMove :: HSVClass self => Signal self (DirectionType -> IO ()) Source #