tomo/backend
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Text cursor is now an I beam

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This commit is contained in:
Sasha Koshka 2024-09-05 16:46:49 -04:00
parent 381f5f88bd
commit 6f9eca99e7
1 changed files with 24 additions and 12 deletions
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36
internal/system/textbox.go
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@ -253,20 +253,19 @@ func (this *textBox) drawDot (can canvas.Canvas) {
pen := can.Pen()
bounds := this.InnerBounds()
metrics := face.Metrics()
dot := this.dot.Canon()
start := this.drawer.PositionAt(dot.Start).Add(fixPt(this.textOffset()))
end := this.drawer.PositionAt(dot.End ).Add(fixPt(this.textOffset()))
height := this.drawer.LineHeight().Round()
ascent := fixed.Point26_6 { Y: metrics.Descent }
descent := fixed.Point26_6 { Y: metrics.Ascent }
bounds := this.InnerBounds()
metrics := face.Metrics()
dot := this.dot
canonDot := dot.Canon()
start := this.drawer.PositionAt(canonDot.Start).Add(fixPt(this.textOffset()))
end := this.drawer.PositionAt(canonDot.End ).Add(fixPt(this.textOffset()))
canonEnd := this.drawer.PositionAt(dot.End ).Add(fixPt(this.textOffset()))
height := this.drawer.LineHeight().Round()
ascent := fixed.Point26_6 { Y: metrics.Descent }
descent := fixed.Point26_6 { Y: metrics.Ascent }
switch {
case dot.Empty():
pen.Stroke(textColor)
pen.StrokeWeight(1)
pen.Path(roundPt(start.Add(ascent)), roundPt(start.Sub(descent)))
case canonDot.Empty():
case start.Y == end.Y:
pen.Fill(dotColor)
@ -300,6 +299,19 @@ func (this *textBox) drawDot (can canvas.Canvas) {
rect.Min.X = bounds.Min.X
pen.Rectangle(rect)
}
pen.Stroke(textColor)
pen.StrokeWeight(1)
beamTop := roundPt(canonEnd.Add(ascent)).Sub(image.Pt(0, 1))
beamBottom := roundPt(canonEnd.Sub(descent))
beamSerif := 3
pen.Path(beamTop, beamBottom)
pen.Path (
beamTop.Sub(image.Pt(beamSerif - 1, 0)),
beamTop.Add(image.Pt(beamSerif, 0)))
pen.Path (
beamBottom.Sub(image.Pt(beamSerif - 1, 0)),
beamBottom.Add(image.Pt(beamSerif, 0)))
}
func (this *textBox) textOffset () image.Point {