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Re-added the graph drawing in the histogram example.

This commit is contained in:
Pietro Gagliardi 2018-08-20 09:12:32 -04:00
parent a0354058ec
commit 7d83b8ad37
1 changed files with 14 additions and 13 deletions
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27
zz_histogram.go
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@ -11,9 +11,10 @@ import (
"github.com/andlabs/ui" "github.com/andlabs/ui"
) )
var colorButton *ui.ColorButton var (
datapoints [10]*ui.Spinbox
var datapoints [10]*ui.Spinbox colorButton *ui.ColorButton
)
// some metrics // some metrics
const ( const (
@ -119,27 +120,27 @@ func (areaHandler) Draw(a *ui.Area, p *ui.AreaDrawParams) {
m.Translate(xoffLeft, yoffTop); m.Translate(xoffLeft, yoffTop);
p.Context.Transform(m) p.Context.Transform(m)
/*
// now get the color for the graph itself and set up the brush // now get the color for the graph itself and set up the brush
uiColorButtonColor(colorButton, &graphR, &graphG, &graphB, &graphA); graphR, graphG, graphB, graphA := colorButton.Color()
brush.Type = ui.Solid; brush.Type = ui.Solid
brush.R = graphR; brush.R = graphR
brush.G = graphG; brush.G = graphG
brush.B = graphB; brush.B = graphB
// we set brush.A below to different values for the fill and stroke // we set brush.A below to different values for the fill and stroke
// now create the fill for the graph below the graph line // now create the fill for the graph below the graph line
path = constructGraph(graphWidth, graphHeight, 1); path = constructGraph(graphWidth, graphHeight, true)
brush.A = graphA / 2; brush.A = graphA / 2
p.Context.Fill(path, brush) p.Context.Fill(path, brush)
path.Free() path.Free()
// now draw the histogram line // now draw the histogram line
path = constructGraph(graphWidth, graphHeight, 0); path = constructGraph(graphWidth, graphHeight, false)
brush.A = graphA; brush.A = graphA
p.Context.Stroke(path, brush, sp) p.Context.Stroke(path, brush, sp)
path.Free() path.Free()
/*
// now draw the point being hovered over // now draw the point being hovered over
if (currentPoint != -1) { if (currentPoint != -1) {
double xs[10], ys[10]; double xs[10], ys[10];