60 lines
1.2 KiB
Go
60 lines
1.2 KiB
Go
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package shape
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import (
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"math"
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"oss.terrastruct.com/d2/lib/geo"
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"oss.terrastruct.com/d2/lib/svg"
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)
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type shapePackage struct {
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*baseShape
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}
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func NewPackage(box *geo.Box) Shape {
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return shapePackage{
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baseShape: &baseShape{
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Type: PACKAGE_TYPE,
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Box: box,
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},
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}
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}
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func packagePath(box *geo.Box) *svg.SvgPathContext {
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const MIN_TOP_HEIGHT = 34
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const MAX_TOP_HEIGHT = 55
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const MIN_TOP_WIDTH = 50
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const MAX_TOP_WIDTH = 150
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const horizontalScalar = 0.5
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topWidth := box.Width * horizontalScalar
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if box.Width >= 2*MIN_TOP_WIDTH {
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topWidth = math.Min(MAX_TOP_WIDTH, math.Max(MIN_TOP_WIDTH, topWidth))
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}
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const verticalScalar = 0.2
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topHeight := box.Height * verticalScalar
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if box.Height >= 2*MIN_TOP_HEIGHT {
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topHeight = math.Min(MAX_TOP_HEIGHT, math.Max(MIN_TOP_HEIGHT, topHeight))
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}
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pc := svg.NewSVGPathContext(box.TopLeft, 1, 1)
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pc.StartAt(pc.Absolute(0, 0))
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pc.L(false, topWidth, 0)
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pc.L(false, topWidth, topHeight)
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pc.L(false, box.Width, topHeight)
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pc.L(false, box.Width, box.Height)
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pc.L(false, 0, box.Height)
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pc.Z()
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return pc
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}
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func (s shapePackage) Perimeter() []geo.Intersectable {
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return packagePath(s.Box).Path
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}
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func (s shapePackage) GetSVGPathData() []string {
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return []string{
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packagePath(s.Box).PathData(),
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}
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}
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