d2graph

package
v0.0.0-...-e815181 Latest Latest
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 Go to latest Published: Aug 6, 2023 License: MPL-2.0 Imports: 28 Imported by: 0

Documentation

Index

Constants

View Source 
const DEFAULT_SHAPE_SIZE = 100.
View Source 
const INNER_LABEL_PADDING int = 5
View Source 
const MIN_SEGMENT_LEN = 10
View Source 
const MIN_SHAPE_SIZE = 5

Variables

View Source 
var BoardKeywords = map[string]struct{}{
	"layers":    {},
	"scenarios": {},
	"steps":     {},
}

BoardKeywords contains the keywords that create new boards.

View Source 
var CompositeReservedKeywords = map[string]struct{}{
	"classes":    {},
	"constraint": {},
	"label":      {},
	"icon":       {},
}

CompositeReservedKeywords are reserved keywords that can hold composites

View Source 
var FillPatterns = []string{
	"dots",
	"lines",
	"grain",
	"paper",
}
View Source 
var LabelPositions map[string]struct{}
View Source 
var LabelPositionsArray = []string{
	"top-left",
	"top-center",
	"top-right",

	"center-left",
	"center-center",
	"center-right",

	"bottom-left",
	"bottom-center",
	"bottom-right",

	"outside-top-left",
	"outside-top-center",
	"outside-top-right",

	"outside-left-top",
	"outside-left-center",
	"outside-left-bottom",

	"outside-right-top",
	"outside-right-center",
	"outside-right-bottom",

	"outside-bottom-left",
	"outside-bottom-center",
	"outside-bottom-right",
}

LabelPositionsArray are the values that labels and icons can set `near` to

View Source 
var LabelPositionsMapping = map[string]label.Position{
	"top-left":   label.InsideTopLeft,
	"top-center": label.InsideTopCenter,
	"top-right":  label.InsideTopRight,

	"center-left":   label.InsideMiddleLeft,
	"center-center": label.InsideMiddleCenter,
	"center-right":  label.InsideMiddleRight,

	"bottom-left":   label.InsideBottomLeft,
	"bottom-center": label.InsideBottomCenter,
	"bottom-right":  label.InsideBottomRight,

	"outside-top-left":   label.OutsideTopLeft,
	"outside-top-center": label.OutsideTopCenter,
	"outside-top-right":  label.OutsideTopRight,

	"outside-left-top":    label.OutsideLeftTop,
	"outside-left-center": label.OutsideLeftMiddle,
	"outside-left-bottom": label.OutsideLeftBottom,

	"outside-right-top":    label.OutsideRightTop,
	"outside-right-center": label.OutsideRightMiddle,
	"outside-right-bottom": label.OutsideRightBottom,

	"outside-bottom-left":   label.OutsideBottomLeft,
	"outside-bottom-center": label.OutsideBottomCenter,
	"outside-bottom-right":  label.OutsideBottomRight,
}

convert to label.Position

View Source 
var NearConstants map[string]struct{}
View Source 
var NearConstantsArray = []string{
	"top-left",
	"top-center",
	"top-right",

	"center-left",
	"center-right",

	"bottom-left",
	"bottom-center",
	"bottom-right",
}

TODO maybe autofmt should allow other values, and transform them to conform e.g. left-center becomes center-left

View Source 
var ReservedKeywordHolders = map[string]struct{}{
	"style":            {},
	"source-arrowhead": {},
	"target-arrowhead": {},
}

ReservedKeywordHolders are reserved keywords that are meaningless on its own and must hold composites

View Source 
var ReservedKeywords map[string]struct{}

All reserved keywords. See init below.

View Source 
var SimpleReservedKeywords = map[string]struct{}{
	"label":          {},
	"desc":           {},
	"shape":          {},
	"icon":           {},
	"constraint":     {},
	"tooltip":        {},
	"link":           {},
	"near":           {},
	"width":          {},
	"height":         {},
	"direction":      {},
	"top":            {},
	"left":           {},
	"grid-rows":      {},
	"grid-columns":   {},
	"grid-gap":       {},
	"vertical-gap":   {},
	"horizontal-gap": {},
	"class":          {},
	"vars":           {},
}

Non Style/Holder keywords.

View Source 
var StyleKeywords = map[string]struct{}{
	"opacity":       {},
	"stroke":        {},
	"fill":          {},
	"fill-pattern":  {},
	"stroke-width":  {},
	"stroke-dash":   {},
	"border-radius": {},

	"font":           {},
	"font-size":      {},
	"font-color":     {},
	"bold":           {},
	"italic":         {},
	"underline":      {},
	"text-transform": {},

	"shadow":        {},
	"multiple":      {},
	"double-border": {},

	"3d": {},

	"animated": {},
	"filled":   {},
}

StyleKeywords are reserved keywords which cannot exist outside of the "style" keyword

Functions

func CompareSerializedEdge 

func CompareSerializedEdge(edge, other *Edge) error

func CompareSerializedGraph 

func CompareSerializedGraph(g, other *Graph) error

func CompareSerializedObject 

func CompareSerializedObject(obj, other *Object) error

func DeserializeGraph 

func DeserializeGraph(bytes []byte, g *Graph) error

func GetTextDimensions 

func GetTextDimensions(mtexts []*d2target.MText, ruler *textmeasure.Ruler, t *d2target.MText, fontFamily *d2fonts.FontFamily) *d2target.TextDimensions

func Key 

func Key(k *d2ast.KeyPath) []string

func SerializeGraph 

func SerializeGraph(g *Graph) ([]byte, error)

Types

type Attributes 

type Attributes struct {
	Label           Scalar                  `json:"label"`
	LabelDimensions d2target.TextDimensions `json:"labelDimensions"`

	Style   Style    `json:"style"`
	Icon    *url.URL `json:"icon,omitempty"`
	Tooltip *Scalar  `json:"tooltip,omitempty"`
	Link    *Scalar  `json:"link,omitempty"`

	WidthAttr  *Scalar `json:"width,omitempty"`
	HeightAttr *Scalar `json:"height,omitempty"`

	Top  *Scalar `json:"top,omitempty"`
	Left *Scalar `json:"left,omitempty"`

	// TODO consider separate Attributes struct for shape-specific and edge-specific
	// Shapes only
	NearKey  *d2ast.KeyPath `json:"near_key"`
	Language string         `json:"language,omitempty"`
	// TODO: default to ShapeRectangle instead of empty string
	Shape Scalar `json:"shape"`

	Direction  Scalar   `json:"direction"`
	Constraint []string `json:"constraint"`

	GridRows      *Scalar `json:"gridRows,omitempty"`
	GridColumns   *Scalar `json:"gridColumns,omitempty"`
	GridGap       *Scalar `json:"gridGap,omitempty"`
	VerticalGap   *Scalar `json:"verticalGap,omitempty"`
	HorizontalGap *Scalar `json:"horizontalGap,omitempty"`

	LabelPosition *Scalar `json:"labelPosition,omitempty"`
	IconPosition  *Scalar `json:"iconPosition,omitempty"`

	// These names are attached to the rendered elements in SVG
	// so that users can target them however they like outside of D2
	Classes []string `json:"classes,omitempty"`
}

func (*Attributes) ApplyTextTransform 

func (a *Attributes) ApplyTextTransform()

ApplyTextTransform will alter the `Label.Value` of the current object based on the specification of the `text-transform` styling option. This function has side-effects!

func (*Attributes) ToArrowhead 

func (a *Attributes) ToArrowhead() d2target.Arrowhead

type ContainerLevel 

type ContainerLevel int

func (ContainerLevel) LabelSize 

func (l ContainerLevel) LabelSize() int

type Edge 

type Edge struct {
	Index int `json:"index"`

	SrcTableColumnIndex *int `json:"srcTableColumnIndex,omitempty"`
	DstTableColumnIndex *int `json:"dstTableColumnIndex,omitempty"`

	LabelPosition   *string  `json:"labelPosition,omitempty"`
	LabelPercentage *float64 `json:"labelPercentage,omitempty"`

	IsCurve bool         `json:"isCurve"`
	Route   []*geo.Point `json:"route,omitempty"`

	Src          *Object     `json:"-"`
	SrcArrow     bool        `json:"src_arrow"`
	SrcArrowhead *Attributes `json:"srcArrowhead,omitempty"`
	Dst          *Object     `json:"-"`
	// TODO alixander (Mon Sep 12 2022): deprecate SrcArrow and DstArrow and just use SrcArrowhead and DstArrowhead
	DstArrow     bool        `json:"dst_arrow"`
	DstArrowhead *Attributes `json:"dstArrowhead,omitempty"`

	References []EdgeReference `json:"references,omitempty"`
	Attributes `json:"attributes,omitempty"`

	ZIndex int `json:"zIndex"`
}

func (*Edge) AbsID 

func (e *Edge) AbsID() string

func (*Edge) ArrowString 

func (e *Edge) ArrowString() string

func (*Edge) ContainedBy 

func (e *Edge) ContainedBy(obj *Object) bool

func (*Edge) GetAstEdge 

func (e *Edge) GetAstEdge() *d2ast.Edge

func (*Edge) GetGroup 

func (e *Edge) GetGroup() *Object

func (*Edge) GetStroke 

func (e *Edge) GetStroke(dashGapSize interface{}) string

func (*Edge) ShiftEnd 

func (edge *Edge) ShiftEnd(delta float64, isHorizontal bool)

ShiftEnd moves the ending point of the route by delta either horizontally or vertically if prior points are in line with the movement, they will be removed (unless it is the first point)

func (*Edge) ShiftStart 

func (edge *Edge) ShiftStart(delta float64, isHorizontal bool)

ShiftStart moves the starting point of the route by delta either horizontally or vertically if subsequent points are in line with the movement, they will be removed (unless it is the last point) start end . ├────┼────┼───┼────┼───┤ before . ├──dx──► . ├──┼───┼────┼───┤ after

func (*Edge) Text 

func (e *Edge) Text() *d2target.MText

func (*Edge) TraceToShape 

func (edge *Edge) TraceToShape(points []*geo.Point, startIndex, endIndex int) (newStart, newEnd int)

type EdgeReference 

type EdgeReference struct {
	Edge *d2ast.Edge `json:"-"`

	MapKey          *d2ast.Key `json:"-"`
	MapKeyEdgeIndex int        `json:"map_key_edge_index"`
	Scope           *d2ast.Map `json:"-"`
	ScopeObj        *Object    `json:"-"`
	ScopeAST        *d2ast.Map `json:"-"`
}

type Graph 

type Graph struct {
	FS     fs.FS  `json:"-"`
	Parent *Graph `json:"-"`
	Name   string `json:"name"`
	// IsFolderOnly indicates a board or scenario itself makes no modifications from its
	// base. Folder only boards do not have a render and are used purely for organizing
	// the board tree.
	IsFolderOnly bool       `json:"isFolderOnly"`
	AST          *d2ast.Map `json:"ast"`
	// BaseAST is the AST of the original graph without inherited fields and edges
	BaseAST *d2ast.Map `json:"-"`

	Root    *Object   `json:"root"`
	Edges   []*Edge   `json:"edges"`
	Objects []*Object `json:"objects"`

	Layers    []*Graph `json:"layers,omitempty"`
	Scenarios []*Graph `json:"scenarios,omitempty"`
	Steps     []*Graph `json:"steps,omitempty"`

	Theme *d2themes.Theme `json:"theme,omitempty"`
}

func NewGraph 

func NewGraph() *Graph

func (*Graph) ApplyTheme 

func (g *Graph) ApplyTheme(themeID int64) error

ApplyTheme applies themes on the graph level This is different than on the render level, which only changes colors A theme applied on the graph level applies special rules that change the graph

func (*Graph) ExtractAsNestedGraph 

func (g *Graph) ExtractAsNestedGraph(obj *Object) *Graph

remove obj and all descendants from graph, as a new Graph

func (*Graph) GetBoard 

func (g *Graph) GetBoard(name string) *Graph

func (*Graph) InjectNestedGraph 

func (g *Graph) InjectNestedGraph(tempGraph *Graph, parent *Object)

func (*Graph) PrintString 

func (g *Graph) PrintString() string

func (*Graph) RootBoard 

func (g *Graph) RootBoard() *Graph

func (*Graph) SetDimensions 

func (g *Graph) SetDimensions(mtexts []*d2target.MText, ruler *textmeasure.Ruler, fontFamily *d2fonts.FontFamily) error

func (*Graph) SortEdgesByAST 

func (g *Graph) SortEdgesByAST()

func (*Graph) SortObjectsByAST 

func (g *Graph) SortObjectsByAST()

func (*Graph) Texts 

func (g *Graph) Texts() []*d2target.MText

type LayoutGraph 

type LayoutGraph func(context.Context, *Graph) error

type Object 

type Object struct {
	Graph  *Graph  `json:"-"`
	Parent *Object `json:"-"`

	// IDVal is the actual value of the ID whereas ID is the value in d2 syntax.
	// e.g. ID:    "yes'\""
	//      IDVal: yes'"
	//
	// ID allows joining on . naively and construct a valid D2 key path
	ID         string      `json:"id"`
	IDVal      string      `json:"id_val"`
	Map        *d2ast.Map  `json:"-"`
	References []Reference `json:"references,omitempty"`

	*geo.Box      `json:"box,omitempty"`
	LabelPosition *string `json:"labelPosition,omitempty"`
	IconPosition  *string `json:"iconPosition,omitempty"`

	Class    *d2target.Class    `json:"class,omitempty"`
	SQLTable *d2target.SQLTable `json:"sql_table,omitempty"`

	Children      map[string]*Object `json:"-"`
	ChildrenArray []*Object          `json:"-"`

	Attributes `json:"attributes"`

	ZIndex int `json:"zIndex"`
}

TODO maybe rename to Shape

func ResolveUnderscoreKey 

func ResolveUnderscoreKey(ida []string, obj *Object) (resolvedObj *Object, resolvedIDA []string, _ error)

TODO: remove once not used anywhere

func (*Object) AbsID 

func (obj *Object) AbsID() string

func (*Object) AbsIDArray 

func (obj *Object) AbsIDArray() []string

func (*Object) AppendReferences 

func (obj *Object) AppendReferences(ida []string, ref Reference, unresolvedObj *Object)

func (*Object) ClosestGridDiagram 

func (obj *Object) ClosestGridDiagram() *Object

func (*Object) Connect 

func (obj *Object) Connect(srcID, dstID []string, srcArrow, dstArrow bool, label string) (*Edge, error)

func (*Object) ContainedBy 

func (o *Object) ContainedBy(obj *Object) bool

func (*Object) ContainsAnyEdge 

func (obj *Object) ContainsAnyEdge(edges []*Edge) bool

func (*Object) ContainsAnyObject 

func (obj *Object) ContainsAnyObject(objects []*Object) bool

func (*Object) EnsureChild 

func (obj *Object) EnsureChild(ida []string) *Object

EnsureChild grabs the child by ids or creates it if it does not exist including all intermediate nodes.

func (*Object) FindEdges 

func (obj *Object) FindEdges(mk *d2ast.Key) ([]*Edge, bool)

TODO: remove edges []edge and scope each edge inside Object.

func (*Object) GetDefaultSize 

func (obj *Object) GetDefaultSize(mtexts []*d2target.MText, ruler *textmeasure.Ruler, fontFamily *d2fonts.FontFamily, labelDims d2target.TextDimensions, withLabelPadding bool) (*d2target.TextDimensions, error)

func (*Object) GetFill 

func (obj *Object) GetFill() string

func (*Object) GetIconTopLeft 

func (obj *Object) GetIconTopLeft() *geo.Point

func (*Object) GetLabelSize 

func (obj *Object) GetLabelSize(mtexts []*d2target.MText, ruler *textmeasure.Ruler, fontFamily *d2fonts.FontFamily) (*d2target.TextDimensions, error)

func (*Object) GetLabelTopLeft 

func (obj *Object) GetLabelTopLeft() *geo.Point

func (*Object) GetModifierElementAdjustments 

func (obj *Object) GetModifierElementAdjustments() (dx, dy float64)

GetModifierElementAdjustments returns width/height adjustments to account for shapes with 3d or multiple

func (*Object) GetStroke 

func (obj *Object) GetStroke(dashGapSize interface{}) string

func (*Object) HasChild 

func (obj *Object) HasChild(ids []string) (*Object, bool)

func (*Object) HasEdge 

func (obj *Object) HasEdge(mk *d2ast.Key) (*Edge, bool)

func (*Object) HasLabel 

func (obj *Object) HasLabel() bool

func (*Object) HasOutsideBottomLabel 

func (obj *Object) HasOutsideBottomLabel() bool

func (*Object) Is3D 

func (obj *Object) Is3D() bool

func (*Object) IsContainer 

func (obj *Object) IsContainer() bool

func (*Object) IsDescendantOf 

func (obj *Object) IsDescendantOf(ancestor *Object) bool

func (*Object) IsGridDiagram 

func (obj *Object) IsGridDiagram() bool

func (*Object) IsMultiple 

func (obj *Object) IsMultiple() bool

func (*Object) IsSequenceDiagram 

func (obj *Object) IsSequenceDiagram() bool

func (*Object) IsSequenceDiagramGroup 

func (obj *Object) IsSequenceDiagramGroup() bool

groups are objects in sequence diagrams that have no messages connected and does not have a note as a child (a note can appear within a group, but it's a child of an actor)

func (*Object) IsSequenceDiagramNote 

func (obj *Object) IsSequenceDiagramNote() bool

notes are descendant of actors with no edges and no children

func (*Object) IterDescendants 

func (obj *Object) IterDescendants(apply func(parent, child *Object))

func (*Object) Level 

func (obj *Object) Level() ContainerLevel

func (*Object) MoveWithDescendants 

func (obj *Object) MoveWithDescendants(dx, dy float64)

func (*Object) MoveWithDescendantsTo 

func (obj *Object) MoveWithDescendantsTo(x, y float64)

func (*Object) OuterNearContainer 

func (obj *Object) OuterNearContainer() *Object

func (*Object) OuterSequenceDiagram 

func (obj *Object) OuterSequenceDiagram() *Object

func (*Object) ShiftDescendants 

func (obj *Object) ShiftDescendants(dx, dy float64)

ShiftDescendants moves Object's descendants (not including itself) descendants' edges are also moved by the same dx and dy (the whole route is moved if both ends are a descendant)

func (*Object) SizeToContent 

func (obj *Object) SizeToContent(contentWidth, contentHeight, paddingX, paddingY float64)

resizes the object to fit content of the given width and height in its inner box with the given padding. this accounts for the shape of the object, and if there is a desired width or height set for the object

func (*Object) Text 

func (obj *Object) Text() *d2target.MText

func (*Object) ToShape 

func (obj *Object) ToShape() shape.Shape

type Reference 

type Reference struct {
	Key          *d2ast.KeyPath `json:"key"`
	KeyPathIndex int            `json:"key_path_index"`

	MapKey          *d2ast.Key `json:"-"`
	MapKeyEdgeIndex int        `json:"map_key_edge_index"`
	Scope           *d2ast.Map `json:"-"`
	ScopeObj        *Object    `json:"-"`
	ScopeAST        *d2ast.Map `json:"-"`
}

func (Reference) InEdge 

func (r Reference) InEdge() bool

func (Reference) MapKeyEdgeDest 

func (r Reference) MapKeyEdgeDest() bool

type Scalar 

type Scalar struct {
	Value  string     `json:"value"`
	MapKey *d2ast.Key `json:"-"`
}

TODO consider having different Scalar types Right now we'll hold any types in Value and just convert, e.g. floats

type SerializedEdge 

type SerializedEdge map[string]interface{}

type SerializedGraph 

type SerializedGraph struct {
	Root    SerializedObject   `json:"root"`
	Edges   []SerializedEdge   `json:"edges"`
	Objects []SerializedObject `json:"objects"`
}

type SerializedObject 

type SerializedObject map[string]interface{}

type Style 

type Style struct {
	Opacity       *Scalar `json:"opacity,omitempty"`
	Stroke        *Scalar `json:"stroke,omitempty"`
	Fill          *Scalar `json:"fill,omitempty"`
	FillPattern   *Scalar `json:"fillPattern,omitempty"`
	StrokeWidth   *Scalar `json:"strokeWidth,omitempty"`
	StrokeDash    *Scalar `json:"strokeDash,omitempty"`
	BorderRadius  *Scalar `json:"borderRadius,omitempty"`
	Shadow        *Scalar `json:"shadow,omitempty"`
	ThreeDee      *Scalar `json:"3d,omitempty"`
	Multiple      *Scalar `json:"multiple,omitempty"`
	Font          *Scalar `json:"font,omitempty"`
	FontSize      *Scalar `json:"fontSize,omitempty"`
	FontColor     *Scalar `json:"fontColor,omitempty"`
	Animated      *Scalar `json:"animated,omitempty"`
	Bold          *Scalar `json:"bold,omitempty"`
	Italic        *Scalar `json:"italic,omitempty"`
	Underline     *Scalar `json:"underline,omitempty"`
	Filled        *Scalar `json:"filled,omitempty"`
	DoubleBorder  *Scalar `json:"doubleBorder,omitempty"`
	TextTransform *Scalar `json:"textTransform,omitempty"`
}

func (*Style) Apply 

func (s *Style) Apply(key, value string) error

func (Style) NoneTextTransform 

func (s Style) NoneTextTransform() bool

NoneTextTransform will return a boolean if the text should not have any transformation applied. This should overwrite theme specific transformations like `CapsLock` from the `terminal` theme.

Source Files

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