Package org.gnome.gdk

Class ColorState

java.lang.Object

org.javagi.base.ProxyInstance

org.gnome.gdk.ColorState

All Implemented Interfaces:

Proxy

@Generated("io.github.jwharm.JavaGI")
public class ColorState
extends ProxyInstance

Provides information to interpret colors and pixels in a variety of ways.

They are also known as *color spaces*.

Crucially, GTK knows how to convert colors from one color state to another.

GdkColorState objects are immutable and therefore threadsafe.

Since:

4.16

Constructor Summary

Constructors

Constructor	Description
ColorState(MemorySegment address)	Create a ColorState proxy instance for the provided memory address.

Method Summary

Modifier and Type	Method	Description
@Nullable CicpParams	createCicpParams()	Create a CicpParams representing the colorstate.
boolean	equal(ColorState other)	Compares two GdkColorStates for equality.
boolean	equivalent(ColorState other)	Compares two GdkColorStates for equivalence.
static ColorState	getOklab()	Returns the color state object representing the oklab color space.
static ColorState	getOklch()	Returns the color state object representing the oklch color space.
static ColorState	getRec2100Linear()	Returns the color state object representing the linear rec2100 color space.
static ColorState	getRec2100Pq()	Returns the color state object representing the rec2100-pq color space.
static ColorState	getSrgb()	Returns the color state object representing the sRGB color space.
static ColorState	getSrgbLinear()	Returns the color state object representing the linearized sRGB color space.
static @Nullable Type	getType()	Get the GType of the ColorState class
ColorState	ref()	Increase the reference count of self.
void	unref()	Decrease the reference count of self.

Methods inherited from class org.javagi.base.ProxyInstance

equals, handle, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ColorState

public ColorState(MemorySegment address)

Create a ColorState proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

Method Details

getType

public static @Nullable Type getType()

Get the GType of the ColorState class

Returns:

the GType

getOklab

public static ColorState getOklab()

Returns the color state object representing the oklab color space.

This is a perceptually uniform color state.

Returns:

the color state object for oklab

Since:

4.18

getOklch

public static ColorState getOklch()

Returns the color state object representing the oklch color space.

This is the polar variant of oklab, in which the hue is encoded as a polar coordinate.

Returns:

the color state object for oklch

Since:

4.18

getRec2100Linear

public static ColorState getRec2100Linear()

Returns the color state object representing the linear rec2100 color space.

This color state uses the primaries defined by BT.2020-2 and BT.2100-0 and a linear transfer function.

It is equivalent to the Cicp tuple 9/8/0/1.

See e.g. the CSS HDR Module for details about this colorstate.

Returns:

the color state object for linearized rec2100

Since:

4.16

getRec2100Pq

public static ColorState getRec2100Pq()

Returns the color state object representing the rec2100-pq color space.

This color state uses the primaries defined by BT.2020-2 and BT.2100-0 and the transfer function defined by SMPTE ST 2084 and BT.2100-2.

It is equivalent to the Cicp tuple 9/16/0/1.

See e.g. the CSS HDR Module for details about this colorstate.

Returns:

the color state object for rec2100-pq

Since:

4.16

getSrgb

public static ColorState getSrgb()

Returns the color state object representing the sRGB color space.

This color state uses the primaries defined by BT.709-6 and the transfer function defined by IEC 61966-2-1.

It is equivalent to the Cicp tuple 1/13/0/1.

See e.g. the CSS Color Module for details about this colorstate.

Returns:

the color state object for sRGB

Since:

4.16

getSrgbLinear

public static ColorState getSrgbLinear()

Returns the color state object representing the linearized sRGB color space.

This color state uses the primaries defined by BT.709-6 and a linear transfer function.

It is equivalent to the Cicp tuple 1/8/0/1.

See e.g. the CSS Color Module for details about this colorstate.

Returns:

the color state object for linearized sRGB

Since:

4.16

createCicpParams

public @Nullable CicpParams createCicpParams()

Create a CicpParams representing the colorstate.

It is not guaranteed that every GdkColorState can be represented with Cicp parameters. If that is the case, this function returns NULL.

Returns:

A new CicpParams

Since:

4.16

equal

public boolean equal(ColorState other)

Compares two GdkColorStates for equality.

Note that this function is not guaranteed to be perfect and two objects describing the same color state may compare not equal. However, different color states will never compare equal.

Parameters:

other - another GdkColorStatee

Returns:

true if the two color states compare equal

Since:

4.16

equivalent

public boolean equivalent(ColorState other)

Compares two GdkColorStates for equivalence.

Two objects that represent the same color state should be equivalent, even though they may not be equal in the sense of equal(org.gnome.gdk.ColorState).

Parameters:

other - another GdkColorStatee

Returns:

true if the two color states are equivalent

Since:

4.20

ref

public ColorState ref()

Increase the reference count of self.

Returns:

the object that was passed in

Since:

4.16

unref

public void unref()

Decrease the reference count of self.

Unless this ColorState is static, it will be freed when the reference count reaches zero.

Since:

4.16