ColorFilter

class ColorFilter

ColorFilters are optional objects in the drawing pipeline.

When present in a paint, they are called with the “src” colors, and return new colors, which are then passed onto the next stage (either ImageFilter or Xfermode).

All subclasses are required to be reentrant-safe : it must be legal to share the same instance between several threads.

Subclasses

`ColorFilters`
`ColorMatrixFilter`
`HighContrastFilter`	Color filter that provides transformations to improve contrast for users with low vision.
`LumaColorFilter`	`LumaColorFilter` multiplies the luma of its input into the alpha channel, and sets the red, green, and blue channels to zero.
`OverdrawColorFilter`	Uses the value in the src alpha channel to set the dst pixel.
`TableColorFilter`

Classes

Type

Members:

Methods

`Deserialize`
`__init__`
`asAColorMatrix`	If the filter can be represented by a 5x4 matrix, this returns list of floats appropriately.
`asAColorMode`	If the filter can be represented by a source color plus Mode, this returns color and mode appropriately.
`asColorMode`
`filterColor`
`filterColor4f`	Converts the src color (in src colorspace), into the dst colorspace, then applies this filter to it, returning the filtered color in the dst colorspace.
`getFlattenableType`
`getTypeName`	Returns the name of the object's class.
`makeComposed`	Construct a colorfilter whose effect is to first apply the inner filter and then apply this filter, applied to the output of the inner filter.
`ref`	Increment the reference count.
`serialize`
`unique`	May return true if the caller is the only owner.
`unref`	Decrement the reference count.

Attributes

`kColorFilter_Type`
`kDrawLooper_Type`
`kDrawable_Type`
`kImageFilter_Type`
`kMaskFilter_Type`
`kPathEffect_Type`

Methods

static ColorFilter.Deserialize(data: Buffer) → skia.ColorFilter

ColorFilter.__init__(*args, **kwargs)

ColorFilter.asAColorMatrix(self: skia.ColorFilter) → object

If the filter can be represented by a 5x4 matrix, this returns list of floats appropriately.

If not, this returns None.

Return type:: List[float] or None

ColorFilter.asAColorMode(self: skia.ColorFilter) → object

If the filter can be represented by a source color plus Mode, this returns color and mode appropriately.

If not, this returns None.

Return type:: Tuple[int,skia.BlendMode] or None

ColorFilter.asColorMode(self: skia.ColorFilter) → object

ColorFilter.filterColor(self: skia.ColorFilter, color: int) → int

ColorFilter.filterColor4f(self: skia.ColorFilter, srcColor: skia.Color4f, srcCS: skia.ColorSpace, dstCS: skia.ColorSpace) → skia.Color4f: Converts the src color (in src colorspace), into the dst colorspace, then applies this filter to it, returning the filtered color in the dst colorspace.

ColorFilter.getFlattenableType(self: skia.Flattanable) → skia.Flattanable.Type

ColorFilter.getTypeName(self: skia.Flattanable) → str

Returns the name of the object’s class.

Implemented in Drawable.

ColorFilter.makeComposed(self: skia.ColorFilter, inner: skia.ColorFilter) → skia.ColorFilter

Construct a colorfilter whose effect is to first apply the inner filter and then apply this filter, applied to the output of the inner filter.

result = this(inner(…))

ColorFilter.ref(self: skia.RefCntBase) → None

Increment the reference count.

Must be balanced by a call to unref().

ColorFilter.serialize(self: skia.Flattanable) → skia.Data

ColorFilter.unique(self: skia.RefCntBase) → bool

May return true if the caller is the only owner.

Ensures that all previous owner’s actions are complete.

ColorFilter.unref(self: skia.RefCntBase) → None

Decrement the reference count.

If the reference count is 1 before the decrement, then delete the object. Note that if this is the case, then the object needs to have been allocated via new, and not on the stack.

Attributes

ColorFilter.kColorFilter_Type = <Type.kColorFilter_Type: 0>

ColorFilter.kDrawLooper_Type = <Type.kDrawLooper_Type: 3>

ColorFilter.kDrawable_Type = <Type.kDrawable_Type: 2>

ColorFilter.kImageFilter_Type = <Type.kImageFilter_Type: 4>

ColorFilter.kMaskFilter_Type = <Type.kMaskFilter_Type: 5>

ColorFilter.kPathEffect_Type = <Type.kPathEffect_Type: 6>