106 lines
3 KiB
Go
106 lines
3 KiB
Go
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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"oss.terrastruct.com/util-go/go2"
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)
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type shapePage struct {
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*baseShape
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}
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const (
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// TODO: cleanup
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pageCornerWidth = 20.8164
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pageCornerHeight = 20.348
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)
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func NewPage(box *geo.Box) Shape {
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shape := shapePage{
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baseShape: &baseShape{
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Type: PAGE_TYPE,
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Box: box,
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},
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}
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shape.FullShape = go2.Pointer(Shape(shape))
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return shape
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}
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func (s shapePage) GetInnerBox() *geo.Box {
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// Note: for simplicity this assumes shape padding is greater than pageCornerSize
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width := s.Box.Width
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// consider right hand side occupied by corner for short pages
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if s.Box.Height < 3*pageCornerHeight {
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width -= pageCornerWidth
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}
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return geo.NewBox(s.Box.TopLeft.Copy(), width, s.Box.Height)
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}
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func pageOuterPath(box *geo.Box) *svg.SvgPathContext {
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// TODO: cleanup
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pc := svg.NewSVGPathContext(box.TopLeft, 1., 1.)
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pc.StartAt(pc.Absolute(0.5, 0))
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pc.H(false, box.Width-20.8164)
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pc.C(false, box.Width-19.6456, 0.0, box.Width-18.521, 0.456297, box.Width-17.6811, 1.27202)
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pc.L(false, box.Width-1.3647, 17.12)
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pc.C(false, box.Width-0.4923, 17.9674, box.Width, 19.1318, box.Width, 20.348)
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pc.V(false, box.Height-0.5)
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pc.C(false, box.Width, box.Height-0.2239, box.Width-0.2239, box.Height, box.Width-0.5, box.Height)
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pc.H(false, 0.499999)
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pc.C(false, 0.223857, box.Height, 0, box.Height-0.2239, 0, box.Height-0.5)
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pc.V(false, 0.499999)
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pc.C(false, 0, 0.223857, 0.223857, 0, 0.5, 0)
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pc.Z()
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return pc
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}
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func pageInnerPath(box *geo.Box) *svg.SvgPathContext {
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pc := svg.NewSVGPathContext(box.TopLeft, 1., 1.)
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pc.StartAt(pc.Absolute(box.Width-1.08197, box.Height))
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pc.H(false, 1.08196)
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pc.C(true, -0.64918, 0, -1.08196, -0.43287, -1.08196, -1.08219)
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pc.V(false, 1.08219)
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pc.C(true, 0, -0.64931, 0.43278, -1.08219, 1.08196, -1.08219)
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pc.H(true, box.Width-22.72132)
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pc.C(true, 0.64918, 0, 1.08196, 0.43287, 1.08196, 1.08219)
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pc.V(true, 17.09863)
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pc.C(true, 0, 1.29863, 0.86557, 2.38082, 2.38032, 2.38082)
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pc.H(false, box.Width-1.08197)
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pc.C(true, .64918, 0, 1.08196, 0.43287, 1.08196, 1.08196)
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pc.V(false, box.Height-1.0822)
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pc.C(false, box.Width-1.0, box.Height-0.43288, box.Width-0.43279, box.Height, box.Width-1.08197, box.Height)
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pc.Z()
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return pc
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}
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func (s shapePage) Perimeter() []geo.Intersectable {
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return pageOuterPath(s.Box).Path
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}
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func (s shapePage) GetSVGPathData() []string {
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return []string{
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pageOuterPath(s.Box).PathData(),
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pageInnerPath(s.Box).PathData(),
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}
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}
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func (s shapePage) GetDimensionsToFit(width, height, paddingX, paddingY float64) (float64, float64) {
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totalWidth := width + paddingX
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totalHeight := height + paddingY
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// add space for corner with short pages
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if totalHeight < 3*pageCornerHeight {
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totalWidth += pageCornerWidth
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}
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totalWidth = math.Max(totalWidth, 2*pageCornerWidth)
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totalHeight = math.Max(totalHeight, pageCornerHeight)
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return math.Ceil(totalWidth), math.Ceil(totalHeight)
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}
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func (s shapePage) GetDefaultPadding() (paddingX, paddingY float64) {
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return defaultPadding, pageCornerHeight + defaultPadding
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}
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