153 lines
3.1 KiB
Go
153 lines
3.1 KiB
Go
package main
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import (
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"image/color"
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"fmt"
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"log"
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gio "git.wow.st/gmp/giowrap"
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"gioui.org/ui"
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"gioui.org/ui/app"
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"gioui.org/ui/layout"
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"gioui.org/ui/text"
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"golang.org/x/image/font/sfnt"
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"golang.org/x/image/font/gofont/goregular"
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)
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var (
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face text.Face
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black color.RGBA = color.RGBA{ A: 0xff, R: 0x00, G: 0x00, B: 0x00 }
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gray2 color.RGBA = color.RGBA{ A: 0xff, R: 0x70, G: 0x70, B: 0x70 }
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gray1 color.RGBA = color.RGBA{ A: 0xff, R: 0x50, G: 0x50, B: 0x50 }
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)
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type SLabel struct {
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w gio.Clickable
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bg *gio.Background
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active *bool
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}
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func NewSLabel(t string, active *bool, lops ...gio.LabelOption) *SLabel {
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ret := &SLabel{}
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lops = append([]gio.LabelOption{gio.Face(face)},lops...)
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lbl := gio.NewLabel(t, lops...)
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bg := &gio.Background{
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Color: gray2,
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Radius: ui.Dp(4),
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Inset: layout.UniformInset(ui.Dp(4)),
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}
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if *active {
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bg.Color = gray1
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}
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l := gio.AsClickable(gio.Enclose(bg,lbl))
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ret.w = l
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ret.bg = bg
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ret.active = active
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return ret
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}
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func (w *SLabel) Layout(ctx *gio.Context) {
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if *w.active {
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w.bg.Color = gray1
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} else {
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w.bg.Color = gray2
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}
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w.w.Layout(ctx)
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if w.w.Clicked(ctx) {
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if *w.active {
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*w.active = false
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} else {
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*w.active = true
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}
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}
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}
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func main() {
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log.Print("Staring event loop")
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go eventloop()
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app.Main()
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log.Print("App closed")
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}
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func diffInsets(x, y app.Insets) bool {
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return x.Top != y.Top ||
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x.Bottom != y.Bottom ||
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x.Left != y.Left ||
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x.Right != y.Right
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}
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func eventloop() {
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w := app.NewWindow(
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app.WithWidth(ui.Dp(200)),
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app.WithHeight(ui.Dp(400)),
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app.WithTitle("Tickets"))
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ctx := gio.NewContext(w)
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regular, err := sfnt.Parse(goregular.TTF)
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face = ctx.Faces.For(regular, ui.Sp(16))
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if err != nil { log.Fatal("Cannot parse font.") }
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sysbg := gio.NewBackground(gio.Color(black))
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bg := gio.NewBackground(gio.Color(gray2))
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margin := gio.NewInset(gio.Size(ui.Dp(10)))
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sh := gio.HScroll(gio.NewFlex(gio.Axis(layout.Horizontal)))
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sv := gio.VScroll(gio.NewFlex(gio.Axis(layout.Vertical)))
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numlabs := 50
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labs := make([][]gio.Widget, numlabs)
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sels := make([][]bool, numlabs)
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for i := 0; i < 16; i++ {
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labs[i] = make([]gio.Widget, numlabs)
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sels[i] = make([]bool, numlabs)
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for j := 0; j < numlabs; j++ {
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labs[i][j] = NewSLabel(fmt.Sprintf("%03d",i * j), &sels[i][j])
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}
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}
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sysinset := gio.NewInset(gio.Size(ui.Dp(0)))
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resetSysinset := func(x app.Insets) {
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sysinset = gio.NewInset(gio.Top(x.Top), gio.Bottom(x.Bottom),
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gio.Left(x.Left), gio.Right(x.Right))
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}
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var oldInsets app.Insets
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for { select {
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case e:= <-w.Events():
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switch e := e.(type) {
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case app.DestroyEvent:
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return
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case app.UpdateEvent:
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ctx.Reset(e)
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if diffInsets(e.Insets, oldInsets) {
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oldInsets = e.Insets
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resetSysinset(e.Insets)
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}
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sysbg(sysinset(bg(margin(
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sh(
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sv(labs[0]...),
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sv(labs[1]...),
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sv(labs[2]...),
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sv(labs[3]...),
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sv(labs[4]...),
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sv(labs[5]...),
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sv(labs[6]...),
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sv(labs[7]...),
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sv(labs[8]...),
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sv(labs[9]...),
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sv(labs[10]...),
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sv(labs[11]...),
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sv(labs[12]...),
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sv(labs[13]...),
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sv(labs[14]...),
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sv(labs[15]...),
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))))).Layout(ctx)
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ctx.Update()
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}
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}}
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}
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