first commit

2022-12-17 16:52:13 -08:00
parent cd1f795bb4
commit c21d7d03eb
16 changed files with 2069 additions and 0 deletions
@@ -0,0 +1,122 @@
+package ui
+
+import (
+	"fmt"
+	"gomuse/backend"
+	"gomuse/player"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/layout"
+	"fyne.io/fyne/v2/theme"
+	"fyne.io/fyne/v2/widget"
+)
+
+// TrackPosSlider is a custom slider that doesn't trigger
+// the seek action until drag end.
+type TrackPosSlider struct {
+	widget.Slider
+
+	OnDragEnd func(float64)
+
+	isDragging       bool
+	lastDraggedValue float64
+}
+
+func NewTrackPosSlider() *TrackPosSlider {
+	slider := &TrackPosSlider{
+		Slider: widget.Slider{
+			Value:       0,
+			Min:         0,
+			Max:         1,
+			Step:        0.002,
+			Orientation: widget.Horizontal,
+		},
+	}
+	slider.ExtendBaseWidget(slider)
+	return slider
+}
+
+func (t *TrackPosSlider) DragEnd() {
+	t.isDragging = false
+	t.Slider.DragEnd()
+	if t.OnDragEnd != nil {
+		t.OnDragEnd(t.lastDraggedValue)
+	}
+}
+
+func (t *TrackPosSlider) Dragged(e *fyne.DragEvent) {
+	t.isDragging = true
+	t.Slider.Dragged(e)
+	t.lastDraggedValue = t.Value
+}
+
+func (t *TrackPosSlider) IsDragging() bool {
+	return t.isDragging
+}
+
+// NewPlayerControls sets up the seek bar, and transport buttons, and returns the encompassing Container.
+func NewPlayerControls(p *player.Player, pm *backend.PlaybackManager) *fyne.Container {
+	slider := NewTrackPosSlider()
+	curTimeLabel := widget.NewLabel("0:00")
+	totalTimeLabel := widget.NewLabel("0:00")
+
+	c := container.NewBorder(nil, nil, curTimeLabel, totalTimeLabel, slider)
+
+	slider.OnDragEnd = func(f float64) {
+		p.Seek(fmt.Sprintf("%d", int(f*100)), player.SeekAbsolutePercent)
+	}
+
+	prev := widget.NewButtonWithIcon("", theme.MediaSkipPreviousIcon(), func() {
+		p.SeekBackOrPrevious()
+	})
+	next := widget.NewButtonWithIcon("", theme.MediaSkipNextIcon(), func() {
+		p.SeekNext()
+	})
+	playpause := widget.NewButtonWithIcon("", theme.MediaPlayIcon(), func() {
+		p.PlayPause()
+	})
+
+	p.OnPaused(func() {
+		playpause.SetIcon(theme.MediaPlayIcon())
+	})
+	p.OnPlaying(func() {
+		playpause.SetIcon(theme.MediaPauseIcon())
+	})
+	p.OnStopped(func() {
+		playpause.SetIcon(theme.MediaPlayIcon())
+	})
+
+	buttons := container.NewHBox(prev, playpause, next)
+	b := container.New(layout.NewCenterLayout(), buttons)
+	content := container.NewVBox(c, b)
+
+	pm.OnPlayTimeUpdate(func(curTime float64, totalTime float64) {
+		if !pm.IsSeeking() {
+			v := 0.0
+			if totalTime > 0 {
+				v = curTime / totalTime
+			}
+			ct := SecondsToTimeString(curTime)
+			updated := false
+			if ct != curTimeLabel.Text {
+				curTimeLabel.SetText(ct)
+				updated = true
+			}
+			tt := SecondsToTimeString(totalTime)
+			if tt != totalTimeLabel.Text {
+				totalTimeLabel.SetText(tt)
+				updated = true
+			}
+			if !slider.IsDragging() {
+				if totalTime < 210 || updated {
+					// if current track is long, we only need to redraw the slider
+					// when the time label updates, to reduce screen redraws.
+					slider.SetValue(v)
+				}
+			}
+		}
+	})
+
+	return content
+}