89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
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package timer
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import (
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"image"
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"sync"
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"time"
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"gioui.org/app"
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"gioui.org/io/event"
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"gioui.org/op"
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"gioui.org/op/clip"
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"gioui.org/op/paint"
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"gioui.org/text"
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"gioui.org/widget/material"
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"git.mstar.dev/mstar/timer/shared"
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"github.com/rs/zerolog/log"
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)
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type StateCountdown struct {
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initialSetupDone bool
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TargetTime time.Time
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ops op.Ops
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}
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func (s *StateCountdown) Run(globalState *shared.GlobalState, event event.Event) shared.NewState {
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if !s.initialSetupDone {
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s.initialSetup(globalState)
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}
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switch event := event.(type) {
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case app.FrameEvent:
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return s.handleFrameEvent(globalState, &event)
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case app.DestroyEvent:
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return s.handleQuitEvent()
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case app.WaylandViewEvent, app.X11ViewEvent:
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return shared.EmptyEvent()
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default:
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log.Debug().Any("event", event).Type("type", event).Msg("Unknown event")
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return shared.NewState{}
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}
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}
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func (s *StateCountdown) Exit(globalState *shared.GlobalState, wg *sync.WaitGroup) {
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wg.Done()
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}
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func (s *StateCountdown) initialSetup(globalState *shared.GlobalState) {
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s.initialSetupDone = true
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go func(window *app.Window) {
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t := time.NewTicker(time.Second)
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for range t.C {
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window.Invalidate()
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}
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}(globalState.Window)
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}
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func (s *StateCountdown) handleQuitEvent() shared.NewState {
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return shared.NewState{ExitCode: shared.ErrExitOk}
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}
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func (s *StateCountdown) handleFrameEvent(
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globalState *shared.GlobalState,
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frameEvent *app.FrameEvent,
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) shared.NewState {
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gtx := app.NewContext(&s.ops, *frameEvent)
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paint.FillShape(
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gtx.Ops,
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globalState.Theme.Bg,
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clip.Rect(image.Rect(0, 0, gtx.Constraints.Max.X, gtx.Constraints.Max.Y)).Op(),
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)
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diff := frameEvent.Now.Sub(s.TargetTime)
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diff *= -1
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title := material.H1(
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globalState.Theme,
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diff.Round(time.Second).String(),
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)
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// //
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// // // Change the color of the label.
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title.Color = shared.TextColor
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// //
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// // // Change the position of the label.
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title.Alignment = text.Middle
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//
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// // Draw the label to the graphics context.
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title.Layout(gtx)
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// // Pass the drawing operations to the GPU.
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frameEvent.Frame(&s.ops)
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return shared.NewState{}
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}
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