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jamyxui.go
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jamyxui.go
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package main
// // #cgo pkg-config: gtk+-3.0
// // #include <gtk/gtk.h>
// import "C"
// #include <gtk/gtk.h>
// #cgo pkg-config: gtk+-2.0
import "C"
import (
"unsafe"
"time"
"fmt"
"bufio"
"os"
"log"
// "math"
"github.com/xthexder/go-jack"
"github.com/mattn/go-gtk/gdk"
"github.com/mattn/go-gtk/gtk"
"github.com/mattn/go-gtk/glib"
"github.com/Snowlabs/jamyxgo"
)
func interactiveLoop(target *jamyxgo.Target) {
reader := bufio.NewReader(os.Stdin)
for {
fmt.Print("Command: ")
reader.ReadString('\n')
// cmd, _ := reader.ReadString('\n')
// log.Println(target.SendCommand(cmd))
}
}
type gtkMeter struct { *gtk.DrawingArea }
type gdkPixmap struct { *gdk.Pixmap }
func (pm *gdkPixmap) Fill(gc *gdk.GC) {
pm.GetDrawable().DrawRectangle(gc, true, 0, 0, -1, -1)
}
type Meter struct {
PortName string
IsMono bool
PortL *jack.Port
PortR *jack.Port
PortM *jack.Port
MeterGtk *gtkMeter
MeterValueL *float32
MeterValueR *float32
MeterValueM *float32
}
func gtkNewMeter(isStereo, isMono bool, meterValues [](*float32)) *gtkMeter {
// Macro
invertCoords := func(t_w, t_h, x, y, w, h int) (rx, ry, rw, rh int) {
rx, ry, rw, rh = x, y, w, h
rx = t_w - (x + w)
ry = t_h - (y + h)
return rx, ry, w, h
}
propCoords := func(t_w, t_h int, x, y, w, h float32) (rx, ry, rw, rh int) {
t_w_f := float32(t_w)
t_h_f := float32(t_h)
rx = int(t_w_f * x)
ry = int(t_h_f * y)
rw = int(t_w_f * w)
rh = int(t_h_f * h)
return rx, ry, rw, rh
}
rgb := func(r, g, b float64) (rr, rg, rb uint16) {
const max float64 = 65535
return uint16(max*r), uint16(max*g), uint16(max*b)
}
meter := gtk.NewDrawingArea()
var pixmap *gdkPixmap
var bgGC, barGC, _GC *gdk.GC
var gdkwin *gdk.Window
var vm_width, vm_height int
bgColor := gdk.NewColorRGB(rgb(0.1, 0.1, 0.2))
// bgColor, _ := meter.GetStyle().LookupColor("bg_color")
barColor := gdk.NewColorRGB(rgb(0.2, 0.6, 0.9))
fmt.Println(barColor, bgColor)
// Config event
meter.Connect("configure-event", func(){
if pixmap != nil { pixmap.Unref() }
this := meter
allocation := this.GetAllocation()
vm_width, vm_height = allocation.Width, allocation.Height
gdkwin = this.GetWindow()
pixmap = &gdkPixmap{gdk.NewPixmap(gdkwin.GetDrawable(), vm_width, vm_height, 24)}
bgGC = gdk.NewGC(pixmap.GetDrawable())
barGC = gdk.NewGC(pixmap.GetDrawable())
_GC = gdk.NewGC(pixmap.GetDrawable())
bgGC .SetRgbFgColor(bgColor)
barGC.SetRgbFgColor(barColor)
pixmap.Fill(bgGC)
})
var curLevelL, curLevelR, curLevelM float32 = 0, 0, 0
var fallSpeed float32 = 0.04
// Expose event
meter.Connect("expose-event", func() {
if pixmap == nil {
return
}
// Draw bg
pixmap.Fill(bgGC)
if isMono {
curLevelM -= fallSpeed
if curLevelM < 0 { curLevelM = 0 }
if *meterValues[0] > curLevelM { curLevelM = *meterValues[2] }
// Draw bars
x, y, w, h := propCoords (vm_width, vm_height, 0.3, 0, 0.50, curLevelM)
x, y, w, h = invertCoords(vm_width, vm_height, x , y, w , h)
pixmap.GetDrawable().DrawRectangle(barGC, true, x , y, w , h)
} else {
curLevelL -= fallSpeed
curLevelR -= fallSpeed
if curLevelL < 0 { curLevelL = 0 }
if curLevelR < 0 { curLevelR = 0 }
if *meterValues[0] > curLevelL { curLevelL = *meterValues[0] }
if *meterValues[1] > curLevelR { curLevelR = *meterValues[1] }
// Draw bars
x, y, w, h := propCoords (vm_width, vm_height, 0.55, 0, 0.40, curLevelL)
x, y, w, h = invertCoords(vm_width, vm_height, x , y, w , h)
pixmap.GetDrawable().DrawRectangle(barGC, true, x , y, w , h)
x, y, w, h = propCoords (vm_width, vm_height, 0.1, 0, 0.35, curLevelR)
x, y, w, h = invertCoords(vm_width, vm_height, x, y, w , h)
pixmap.GetDrawable().DrawRectangle(barGC, true, x, y, w , h)
}
// Display everything
gdkwin.GetDrawable().DrawDrawable(_GC, pixmap.GetDrawable(), 0, 0, 0, 0, -1, -1)
// vol_monitor2.QueueDraw()
})
return >kMeter{meter}
}
type monitorButton struct {
GtkButton *gtk.ToggleButton
Port *jamyxgo.Port
CallId int
}
var g_mon_butts = [](*monitorButton){}
func monitorButtonCB(mon_butt *monitorButton, target *jamyxgo.Target) {
for _, mb := range g_mon_butts {
mb.GtkButton.HandlerBlock(mb.CallId)
mb.GtkButton.SetActive(false)
mb.GtkButton.HandlerUnblock(mb.CallId)
}
mon_butt.GtkButton.HandlerBlock(mon_butt.CallId)
mon_butt.GtkButton.SetActive(true)
mon_butt.GtkButton.HandlerUnblock(mon_butt.CallId)
mon_butt.Port.SetMonitored()
}
func channelWidget(port *jamyxgo.Port,
target *jamyxgo.Target,
jclient **jack.Client,
) (widget *gtk.VBox, meter *Meter) {
// Macro
getPrecision := func(vol float32) int {
if vol == 100 { return 1 }
if vol == 0 { return 3 }
return 2
}
getVolLabelText := func(vol float32) string {
return fmt.Sprintf("%5.[2]*[1]f", vol, getPrecision(vol))
}
// ==== Initialize values ====
var meterValL float32 = 0.5
var meterValR float32 = 0.5
var meterValM float32 = 0.5
meterValues := [](*float32){ &meterValL, &meterValR, &meterValM }
// ==== Initialize gtk objects ====
name_label := gtk.NewLabel(port.Port)
vol_label := gtk.NewLabel(getVolLabelText(port.Vol))
vol_slider := gtk.NewVScaleWithRange(0, 100, 1)
vol_monitor := gtkNewMeter(true, port.IsMono, meterValues)
vol_frame := gtk.NewFrame("")
vol_vbox := gtk.NewVBox(false, 0)
vol_hbox := gtk.NewHBox(true, 0)
mon_butt := gtk.NewToggleButtonWithLabel("MON")
vbox := gtk.NewVBox(false, 0)
is_local_change := false
monButObj := &monitorButton{mon_butt, port, 0}
g_mon_butts = append(g_mon_butts, monButObj)
// ==== Configure gtk objects ====
name_label.SetSizeRequest(0, -1)
vol_label.SetPadding(3, 3)
vol_slider.SetDrawValue(false)
vol_slider.SetValue(float64(port.Vol))
vol_slider.SetInverted(true)
moned_port := target.GetMonitorPort()
if moned_port.IsInput == port.IsInput {
mon_butt.SetActive(moned_port.Port == port.Port)
}
// ==== Place gtk objects ====
vol_hbox.PackStart(vol_slider, true, true, 0)
vol_hbox.PackStart(vol_monitor, true, true, 0)
vol_vbox.PackStart(vol_label, false, false, 0)
vol_vbox.PackStart(vol_hbox, true, true, 0)
vol_frame.Add(vol_vbox)
vbox.PackStart(name_label, false, false, 0)
vbox.PackStart(vol_frame, true, true, 0)
vbox.PackEnd(mon_butt, false, false, 0)
// ==== Set callbacks and goroutines ====
vol_slider.Connect("value_changed", func(){
is_local_change = true
vol := float32(vol_slider.GetValue())
log.Println("VOLUME SLIDER: ", vol)
port.SetVol(vol)
vol_label.SetText(getVolLabelText(vol))
})
id := mon_butt.Connect("toggled", func(){ monitorButtonCB(monButObj, target) })
monButObj.CallId = id
go func() {
for {
// This is a blocking call waiting for a change in volume and returning it
port := target.VolumeListen(port.IsInput, port.Port)
if is_local_change {
is_local_change = false
continue
}
vol_slider.SetValue(float64(port.Vol))
vol_label.SetText(getVolLabelText(port.Vol))
}
}()
// Construct Meter object
// return vbox, vol_monitor, &vol_meter_val
suffix := ""; if port.IsInput { suffix="Out "}
meter = new(Meter)
meter.IsMono = port.IsMono
meter.PortName = fmt.Sprintf("Jacon:%s %s", port.Port, suffix)
if !meter.IsMono {
meter.PortL = (*jclient).GetPortByName(meter.PortName+"L")
meter.PortR = (*jclient).GetPortByName(meter.PortName+"R")
} else {
meter.PortM = (*jclient).GetPortByName(meter.PortName+"M")
}
meter.MeterGtk = vol_monitor
meter.MeterValueL = &meterValL
meter.MeterValueR = &meterValR
meter.MeterValueM = &meterValM
return vbox, meter
}
var g_meters [](*Meter)
func jackProcess(nframes uint32) int {
for _, meter := range g_meters {
if !meter.IsMono {
framesL := meter.PortL.GetBuffer(nframes)
framesR := meter.PortR.GetBuffer(nframes)
// find peak
var peakL float32 = 0
var peakR float32 = 0
for _, frame := range framesL {
if float32(frame) > peakL { peakL = float32(frame) }
}
for _, frame := range framesR {
if float32(frame) > peakR { peakR = float32(frame) }
}
*meter.MeterValueL = peakL
*meter.MeterValueR = peakR
} else {
framesM := meter.PortM.GetBuffer(nframes)
// find peak
var peakM float32 = 0
for _, frame := range framesM {
if float32(frame) > peakM { peakM = float32(frame) }
}
*meter.MeterValueM = peakM
}
gdk.ThreadsEnter()
meter.MeterGtk.QueueDraw()
gdk.ThreadsLeave()
}
return 0
}
func windowWidget(target *jamyxgo.Target, jclient **jack.Client) gtk.IWidget {
hbox := gtk.NewHBox(false, 0)
all_ports := target.GetPorts()
inputs := all_ports.Inputs
outputs := all_ports.Outputs
var meters []*Meter
log.Println("Inputs:", inputs)
for _, in := range inputs {
i := in
chan_w, meter := channelWidget(&i, target, jclient)
for _, out := range outputs {
b := gtk.NewToggleButtonWithLabel(out.Port)
o := out
b.SetActive(i.IsConnectedToPort(o))
b.Connect("toggled", func() {
i.ToggleConnectionWithPort(o)
})
b.SetSizeRequest(0, -1)
chan_w.PackStart(b, false, false, 0)
chan_w.ReorderChild(b, 1)
}
hbox.PackStart(chan_w, false, true, 0)
meters = append(meters, meter)
}
log.Println("Outputs:", outputs)
for _, out := range outputs {
o := out
chan_w, meter := channelWidget(&o, target, jclient)
hbox.PackEnd(chan_w, false, true, 0)
meters = append(meters, meter)
}
g_meters = meters
return hbox
}
func setupWindow(target *jamyxgo.Target, jclient **jack.Client) {
gdk.ThreadsInit()
gtk.Init(nil)
window := gtk.NewWindow(gtk.WINDOW_TOPLEVEL)
window.SetPosition(gtk.WIN_POS_CENTER)
window.SetTitle("Jamyxui")
window.Connect("destroy", gtk.MainQuit)
window.SetIconFromFile("jamyxui.png")
menubar := gtk.NewMenuBar()
aboutBtn := gtk.NewMenuItemWithMnemonic("_About")
// aboutBtn.Connect("button-release-event", func() { fmt.Println("as"); aboutWin.ShowAll(); })
openAbout := func() {
md := gtk.NewAboutDialog()
md.SetName("Jamyxui")
md.SetProgramName("Jamyxui")
md.SetVersion("1.0")
image := gtk.NewImageFromFile("jamyxui.png")
md.SetLogo(image.GetPixbuf())
// md.SetLogoIconName("Icon.png")
md.SetCopyright("Copyright © 2017 Javier Pollak")
md.SetAuthors([]string{"Javier Pollak"})
md.SetArtists([]string{"Javier Pollak"})
md.SetWebsite("http://github.com/javyre")
md.SetKeepAbove(true)
md.SetDecorated(false)
md.Run()
md.Destroy()
}
aboutBtn.Connect("button-press-event", func(ctx *glib.CallbackContext) bool {
arg := ctx.Args(0)
e := *(**gdk.EventButton)(unsafe.Pointer(&arg))
if e.Button != 1 {
return false
}
openAbout()
return true
})
aboutBtn.Connect("activate", openAbout)
menubar.Append(aboutBtn)
vbox := gtk.NewVBox(false, 0)
vbox.PackStart(menubar, false, false, 0)
vbox.PackStart(windowWidget(target, jclient), true, true, 0)
window.Add(vbox)
window.SetSizeRequest(-1, 300)
window.ShowAll()
}
var isClientAlive bool = false
func setupJack(target *jamyxgo.Target) **jack.Client {
var jclient **jack.Client = new(*jack.Client)
setup := func () {
client, _ := jack.ClientOpen("Jamyxui channels monitor", jack.NoStartServer)
if client == nil {
log.Println("Could not (re)connect to jack server!")
isClientAlive = false
return
} else { isClientAlive = true }
client.SetProcessCallback(jackProcess)
client.OnShutdown(func() { isClientAlive = false })
if code := client.Activate(); code != 0 { log.Fatal("Failed to activate client!") }
*jclient = client
}
// Reconnection loop
go func() { for {
if !isClientAlive {
fmt.Println("Attempting reconnection to jack server...")
setup()
}
time.Sleep(2*time.Second)
} } ()
for !isClientAlive {
time.Sleep(500*time.Millisecond)
}
return jclient
}
func main() {
target:= jamyxgo.NewTarget("127.0.0.1", 56065)
go interactiveLoop(target)
jclient := setupJack(target)
defer (*jclient).Close()
fmt.Println((*jclient).GetPorts("jamyxer:.*", ".*", 0))
setupWindow(target, jclient)
gtk.Main()
}