Add input components 066-085; gallery chrome on real components; deploy warms the edge

input/stepslider.go

@@ -0,0 +1,46 @@
+package input
+
+import (
+	"github.com/egoist/mygo/ui"
+
+	"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
+)
+
+type StepSliderOptions struct {
+	Min, Max float64
+	// Step is zero for a tenth of the range.
+	Step     float64
+	Width    int
+	Disabled bool
+}
+
+type StepSliderResult = SliderResult
+
+// StepSlider snaps to steps, with ticks and its value.
+func StepSlider(c *ui.Context, text string, value *float64, o StepSliderOptions) StepSliderResult {
+	k := pixel.K(c)
+	lo, hi := bounds(o.Min, o.Max)
+	step := o.Step
+	if step <= 0 {
+		step = (hi - lo) / 10
+	}
+	w := orDef("StepSlider Width", o.Width, 96)
+	var res SliderResult
+	row := ui.Row(c).Gap(k.D(6)).AlignItems(ui.Center).Children(func() {
+		shell, st, changed := slide(c, value, rail{lo: lo, hi: hi, step: step, label: text, disabled: o.Disabled})
+		shell.Size(k.D(w), k.D(16)).Draw(func(p *ui.Painter, r ui.Rect) {
+			g := k.Canvas(p, r)
+			x := knobAt(*value, lo, hi, w-6)
+			groove(g, x+3, 4)
+			for v := lo; v <= hi+step/2; v += step {
+				g.Dot(knobAt(v, lo, hi, w-6)+3, 13, pixel.Faint)
+			}
+			g.Frame(x, 1, 6, 10, pixel.Raised, pixel.Face)
+			finish(g, st)
+		})
+		res = report(shell, changed, "step slider", text, *value)
+		pixel.Text(c, fmtValue(*value), pixel.TextOptions{})
+	})
+	res.Element = row
+	return res
+}