ops

package
v0.0.0-...-a9b3df6 Latest Latest
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 Go to latest Published: Oct 20, 2023 License: MIT, Unlicense Imports: 6 Imported by: 0

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Index

Constants

View Source 
const (
	TypeMacroLen            = 1 + 4 + 4
	TypeCallLen             = 1 + 4 + 4 + 4 + 4
	TypeDeferLen            = 1
	TypeTransformLen        = 1 + 1 + 4*6
	TypePopTransformLen     = 1
	TypePushOpacityLen      = 1 + 4
	TypePopOpacityLen       = 1
	TypeRedrawLen           = 1 + 8
	TypeImageLen            = 1
	TypePaintLen            = 1
	TypeColorLen            = 1 + 4
	TypeLinearGradientLen   = 1 + 8*2 + 4*2
	TypePassLen             = 1
	TypePopPassLen          = 1
	TypePointerInputLen     = 1 + 1 + 1*2 + 2*4 + 2*4
	TypeClipboardReadLen    = 1
	TypeClipboardWriteLen   = 1
	TypeSourceLen           = 1
	TypeTargetLen           = 1
	TypeOfferLen            = 1
	TypeKeyInputLen         = 1 + 1
	TypeKeyFocusLen         = 1 + 1
	TypeKeySoftKeyboardLen  = 1 + 1
	TypeSaveLen             = 1 + 4
	TypeLoadLen             = 1 + 4
	TypeAuxLen              = 1
	TypeClipLen             = 1 + 4*4 + 1 + 1
	TypePopClipLen          = 1
	TypeProfileLen          = 1
	TypeCursorLen           = 2
	TypePathLen             = 8 + 1
	TypeStrokeLen           = 1 + 4
	TypeSemanticLabelLen    = 1
	TypeSemanticDescLen     = 1
	TypeSemanticClassLen    = 2
	TypeSemanticSelectedLen = 2
	TypeSemanticEnabledLen  = 2
	TypeSnippetLen          = 1 + 4 + 4
	TypeSelectionLen        = 1 + 2*4 + 2*4 + 4 + 4
	TypeActionInputLen      = 1 + 1
)

Variables

This section is empty.

Functions

func AddCall 

func AddCall(o *Ops, callOps *Ops, pc PC, end PC)

func BeginMulti 

func BeginMulti(o *Ops)

func DecodeCommand 

func DecodeCommand(d []byte) scene.Command

func DecodeLoad 

func DecodeLoad(data []byte) int

DecodeLoad decodes the state id of a load op.

func DecodeOpacity 

func DecodeOpacity(data []byte) float32

func DecodeSave 

func DecodeSave(data []byte) int

DecodeSave decodes the state id of a save op.

func DecodeTransform 

func DecodeTransform(data []byte) (t f32.Affine2D, push bool)

func EncodeCommand 

func EncodeCommand(out []byte, cmd scene.Command)

func EndMulti 

func EndMulti(o *Ops)

func FillMacro 

func FillMacro(o *Ops, startPC PC)

func PopMacro 

func PopMacro(o *Ops, id StackID)

func PopOp 

func PopOp(o *Ops, kind StackKind, sid StackID, macroID int)

func Reset 

func Reset(o *Ops)

func Write 

func Write(o *Ops, n int) []byte

func Write1 

func Write1(o *Ops, n int, ref1 interface{}) []byte

func Write1String 

func Write1String(o *Ops, n int, ref1 string) []byte

func Write2 

func Write2(o *Ops, n int, ref1, ref2 interface{}) []byte

func Write2String 

func Write2String(o *Ops, n int, ref1 interface{}, ref2 string) []byte

func Write3 

func Write3(o *Ops, n int, ref1, ref2, ref3 interface{}) []byte

func WriteMulti 

func WriteMulti(o *Ops, n int) []byte

Types

type ClipOp 

type ClipOp struct {
	Bounds  image.Rectangle
	Outline bool
	Shape   Shape
}

ClipOp is the shadow of clip.Op.

func (*ClipOp) Decode 

func (op *ClipOp) Decode(data []byte)

type EncodedOp 

type EncodedOp struct {
	Key  Key
	Data []byte
	Refs []interface{}
}

EncodedOp represents an encoded op returned by Reader.

type Key 

type Key struct {
	// contains filtered or unexported fields
}

Key is a unique key for a given op.

type OpType 

type OpType byte
const (
	TypeMacro OpType = iota + firstOpIndex
	TypeCall
	TypeDefer
	TypeTransform
	TypePopTransform
	TypePushOpacity
	TypePopOpacity
	TypeInvalidate
	TypeImage
	TypePaint
	TypeColor
	TypeLinearGradient
	TypePass
	TypePopPass
	TypePointerInput
	TypeClipboardRead
	TypeClipboardWrite
	TypeSource
	TypeTarget
	TypeOffer
	TypeKeyInput
	TypeKeyFocus
	TypeKeySoftKeyboard
	TypeSave
	TypeLoad
	TypeAux
	TypeClip
	TypePopClip
	TypeProfile
	TypeCursor
	TypePath
	TypeStroke
	TypeSemanticLabel
	TypeSemanticDesc
	TypeSemanticClass
	TypeSemanticSelected
	TypeSemanticEnabled
	TypeSnippet
	TypeSelection
	TypeActionInput
)

func (OpType) NumRefs 

func (t OpType) NumRefs() int

func (OpType) Size 

func (t OpType) Size() int

func (OpType) String 

func (t OpType) String() string

type Ops 

type Ops struct {
	// contains filtered or unexported fields
}

type PC 

type PC struct {
	// contains filtered or unexported fields
}

PC is an instruction counter for an operation list.

func PCFor 

func PCFor(o *Ops) PC

func (PC) Add 

func (pc PC) Add(op OpType) PC

type Reader 

type Reader struct {
	// contains filtered or unexported fields
}

Reader parses an ops list.

func (*Reader) Decode 

func (r *Reader) Decode() (EncodedOp, bool)

func (*Reader) Reset 

func (r *Reader) Reset(ops *Ops)

Reset start reading from the beginning of ops.

func (*Reader) ResetAt 

func (r *Reader) ResetAt(ops *Ops, pc PC)

ResetAt is like Reset, except it starts reading from pc.

type Shape 

type Shape byte
const (
	Path Shape = iota
	Ellipse
	Rect
)

type StackID 

type StackID struct {
	// contains filtered or unexported fields
}

func PushMacro 

func PushMacro(o *Ops) StackID

func PushOp 

func PushOp(o *Ops, kind StackKind) (StackID, int)

type StackKind 

type StackKind uint8
const (
	ClipStack StackKind = iota
	TransStack
	PassStack
	OpacityStack
)

type StateOp 

type StateOp struct {
	// contains filtered or unexported fields
}

StateOp represents a saved operation snapshot to be restored later.

func Save 

func Save(o *Ops) StateOp

Save the effective transformation.

func (StateOp) Load 

func (s StateOp) Load()

Load a previously saved operations state given its ID.

Source Files

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