save peak meter window size

ui/controller/visualizations.go

@@ -6,6 +6,7 @@ import (
 
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/lang"
+	"github.com/dweymouth/supersonic/ui/util"
 	"github.com/dweymouth/supersonic/ui/visualizations"
 )
 
@@ -35,7 +36,15 @@ func (c *Controller) ShowPeakMeter() {
 		c.stopVisualizationAnim()
 		c.peakMeter = nil
 		win.Close()
+		util.SaveWindowSize(win,
+			&c.App.Config.PeakMeter.WindowWidth,
+			&c.App.Config.PeakMeter.WindowHeight)
 	})
+	if c.App.Config.PeakMeter.WindowHeight > 0 {
+		win.Resize(fyne.NewSize(
+			float32(c.App.Config.PeakMeter.WindowWidth),
+			float32(c.App.Config.PeakMeter.WindowHeight)))
+	}
 	c.peakMeter = visualizations.NewPeakMeter()
 	win.SetContent(c.peakMeter)
 	c.startVisualizationAnim()

ui/mainwindow.go

@@ -3,7 +3,6 @@ package ui
 import (
 	"fmt"
 	"log"
-	"math"
 	"runtime"
 	"strings"
 	"time"
@@ -16,6 +15,7 @@ import (
 	"github.com/dweymouth/supersonic/ui/dialogs"
 	"github.com/dweymouth/supersonic/ui/os"
 	"github.com/dweymouth/supersonic/ui/theme"
+	"github.com/dweymouth/supersonic/ui/util"
 
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/container"
@@ -432,8 +432,7 @@ func (m *MainWindow) Quit() {
 }
 
 func (m *MainWindow) SaveWindowSize() {
-	// round sizes to even to avoid Wayland issues with 2x scaling factor
-	// https://github.com/dweymouth/supersonic/issues/212
-	m.App.Config.Application.WindowHeight = int(math.RoundToEven(float64(m.Window.Canvas().Size().Height)))
-	m.App.Config.Application.WindowWidth = int(math.RoundToEven(float64(m.Window.Canvas().Size().Width)))
+	util.SaveWindowSize(m.Window,
+		&m.App.Config.Application.WindowWidth,
+		&m.App.Config.Application.WindowHeight)
 }

ui/util/util.go

@@ -257,6 +257,13 @@ func NewTrailingAlignLabel() *widget.Label {
 	return rt
 }
 
+func SaveWindowSize(w fyne.Window, wPtr, hPtr *int) {
+	// round sizes to even to avoid Wayland issues with 2x scaling factor
+	// https://github.com/dweymouth/supersonic/issues/212
+	*wPtr = int(math.RoundToEven(float64(w.Canvas().Size().Width)))
+	*hPtr = int(math.RoundToEven(float64(w.Canvas().Size().Height)))
+}
+
 type HSpace struct {
 	widget.BaseWidget