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gridlines.

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This commit is contained in:
Will Charczuk 2016-07-12 19:14:14 -07:00
parent 28f01842de
commit 249e9956d0
9 changed files with 141 additions and 15 deletions
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29
grid_line.go
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@ -30,14 +30,27 @@ func (gl GridLine) Horizontal() bool {
// Render renders the gridline
func (gl GridLine) Render(r Renderer, canvasBox Box, ra Range) {
lineleft := canvasBox.Left
lineright := canvasBox.Right
lineheight := canvasBox.Bottom - ra.Translate(gl.Value)
if gl.IsVertical {
lineLeft := canvasBox.Left + ra.Translate(gl.Value)
lineBottom := canvasBox.Bottom
lineTop := canvasBox.Top
r.SetStrokeColor(gl.Style.GetStrokeColor(DefaultAxisColor))
r.SetStrokeWidth(gl.Style.GetStrokeWidth(DefaultAxisLineWidth))
r.SetStrokeColor(gl.Style.GetStrokeColor(DefaultAxisColor))
r.SetStrokeWidth(gl.Style.GetStrokeWidth(DefaultAxisLineWidth))
r.MoveTo(lineleft, lineheight)
r.LineTo(lineright, lineheight)
r.Stroke()
r.MoveTo(lineLeft, lineBottom)
r.LineTo(lineLeft, lineTop)
r.Stroke()
} else {
lineLeft := canvasBox.Left
lineRight := canvasBox.Right
lineHeight := canvasBox.Bottom - ra.Translate(gl.Value)
r.SetStrokeColor(gl.Style.GetStrokeColor(DefaultAxisColor))
r.SetStrokeWidth(gl.Style.GetStrokeWidth(DefaultAxisLineWidth))
r.MoveTo(lineLeft, lineHeight)
r.LineTo(lineRight, lineHeight)
r.Stroke()
}
}