vumeter cont'd

1 files changed, 47 insertions, 6 deletions

diff --git a/src/rhlibrary/player_widget.go b/src/rhlibrary/player_widget.go
index 7da5a44..4e62839 100644
--- a/src/rhlibrary/player_widget.go
+++ b/src/rhlibrary/player_widget.go
@@ -33,8 +33,10 @@ import (
 )
 
 const (
-	meterDBFloor  float64 = 72 // -72 db is the lowest VU value
-	meterSegments float64 = 30 // meter has 30 elements
+	meterDBFloor      float64 = 72 // -72 db is the lowest VU value
+	meterSegments     float64 = 30 // meter has 30 elements
+	meterOffsetOrange float64 = 25
+	meterOffsetRed    float64 = 28
 )
 
 func addPlayButton(grid *gtk.Grid, p *player.PlayerChan) (err error) {
@@ -89,6 +91,47 @@ func calcMeterLevel(valdb float64) (val float64) {
 	return
 }
 
+func createMeterBar() (bar *gtk.LevelBar, err error) {
+	if bar, err = gtk.LevelBarNewForInterval(0, meterSegments); err != nil {
+		return
+	}
+	bar.SetMode(gtk.LEVEL_BAR_MODE_DISCRETE)
+	bar.AddOffsetValue(gtk.LEVEL_BAR_OFFSET_LOW, meterOffsetOrange)
+	bar.AddOffsetValue(gtk.LEVEL_BAR_OFFSET_HIGH, meterOffsetRed)
+
+	// bar.RemoveOffsetValue(gtk.LEVEL_BAR_OFFSET_LOW)
+	// bar.RemoveOffsetValue(gtk.LEVEL_BAR_OFFSET_HIGH)
+
+	// var cp *gtk.CssProvider
+	// if cp, err = gtk.CssProviderNew(); err != nil {
+	// 	return
+	// }
+	// if err = cp.LoadFromData(`
+	//            .level-bar.fill-block.level-green {
+	//               background-color: green;
+	//            }
+	//            .level-bar.fill-block.level-orange {
+	//               background-color: orange;
+	//            }
+	//            .level-bar.fill-block.level-red {
+	//               background-color: red;
+	//            }`); err != nil {
+	// 	return
+	// }
+
+	// var sc *gtk.StyleContext
+	// if sc, err = bar.GetStyleContext(); err != nil {
+	// 	return
+	// }
+	// sc.AddProvider(cp, 800) // TOOD: hardcoded value
+
+	// bar.AddOffsetValue("green", 0)
+	// bar.AddOffsetValue("orange", meterOffsetOrange)
+	// bar.AddOffsetValue("red", meterOffsetRed)
+
+	return
+}
+
 func addMeter(grid *gtk.Grid, p *player.PlayerChan) (err error) {
 	var mgrid *gtk.Grid
 	if mgrid, err = gtk.GridNew(); err != nil {
@@ -98,14 +141,12 @@ func addMeter(grid *gtk.Grid, p *player.PlayerChan) (err error) {
 	mgrid.SetColumnSpacing(3)
 
 	var left, right *gtk.LevelBar
-	if left, err = gtk.LevelBarNewForInterval(0, meterSegments); err != nil {
+	if left, err = createMeterBar(); err != nil {
 		return
 	}
-	if right, err = gtk.LevelBarNewForInterval(0, meterSegments); err != nil {
+	if right, err = createMeterBar(); err != nil {
 		return
 	}
-	left.SetMode(gtk.LEVEL_BAR_MODE_DISCRETE)
-	right.SetMode(gtk.LEVEL_BAR_MODE_DISCRETE)
 
 	p.AddUpdateHandler(func(length time.Duration, pos time.Duration, meter player.Meter, userdata interface{}) bool {
 		glib.IdleAdd(func() {