filter

package

v0.0.0-...-9fc8a72 Latest Latest Go to latest Published: Mar 21, 2015 License: MIT Imports: 8 Imported by: 0

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Repository

github.com/jfbus/impressionist

Links

Open Source Insights

Documentation ¶

Index ¶

Variables
func Init(ctx context.Context, cfg []config.FilterConfig, m map[string]FilterBuilder)
func ParseDimensions(str string) (int, int, error)
func ParseModifier(str string, allowed string) (byte, string)
func ParseRect(str string) (int, int, int, int, error)
type Chain
- func Parse(ctx context.Context, m map[string]FilterBuilder, str string) (Chain, error)
- func (c Chain) Apply(ctx context.Context, i img.Img) (img.Img, error)
type Filter
type FilterBuilder
type Image

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	ErrFilterNotFound         = errors.New("filter not found")
	ErrBadFilterParameter     = errors.New("bad filter parameter")
	ErrMissingFilterParameter = errors.New("missing filter parameter")
)

Functions ¶

func Init ¶

func Init(ctx context.Context, cfg []config.FilterConfig, m map[string]FilterBuilder)

func ParseDimensions ¶

func ParseDimensions(str string) (int, int, error)

func ParseModifier ¶

func ParseModifier(str string, allowed string) (byte, string)

func ParseRect ¶

func ParseRect(str string) (int, int, int, int, error)

Types ¶

type Chain ¶

type Chain []Filter

func Parse ¶

func Parse(ctx context.Context, m map[string]FilterBuilder, str string) (Chain, error)

func (Chain) Apply ¶

func (c Chain) Apply(ctx context.Context, i img.Img) (img.Img, error)

type Filter ¶

type Filter interface {
	Apply(img.Img) (img.Img, error)
}

type FilterBuilder ¶

type FilterBuilder func(parts []string) (Filter, int, error)

type Image ¶

type Image interface{}

Source Files ¶

View all Source files

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