add ossmixer.py

Signed-off-by: Florian Pritz <bluewind@xssn.at>

1 files changed, 103 insertions, 0 deletions

diff --git a/ossmixer.py b/ossmixer.py
new file mode 100755
index 0000000..9eb7fba
--- /dev/null
+++ b/ossmixer.py
@@ -0,0 +1,103 @@
+#!/usr/bin/env python
+"A simple volume control applet."
+
+import gtk
+import subprocess
+
+__author__  = "Joakim \"JockeTF\" Soderlund"
+__date__    = "2008-08-22"
+__license__ = "Public domain."
+
+# Binaries to execute.
+OSSMIX  = "ossmix"
+OSSXMIX = "ossxmix"
+
+# The device to control.
+DEVICE = "vmix0-outvol"
+
+# The maximum outvol volume in decibels.
+MAX_DB = 25.0
+
+# Sets an icon for different volume levels.
+LEVELS = (
+	(22, "audio-volume-high"),
+	(18, "audio-volume-medium"),
+	(0,  "audio-volume-low"),
+	(-1, "audio-volume-muted"),
+)
+
+class StatusIcon():
+	"The status icon."
+	def __init__(self):
+		self.icon = gtk.StatusIcon()
+
+		self.icon.connect("scroll-event", self.scrollEvent)
+		self.icon.connect("activate", self.clickEvent)
+
+		self.set_visible = self.icon.set_visible
+
+		self.update()
+
+
+	def scrollEvent(self, widget, event, *args):
+		"Changes the volume when the user scrolls on the volume applet."
+		if event.direction == gtk.gdk.SCROLL_UP:
+			subprocess.call([OSSMIX, DEVICE, "--", "+%.1f" % self.getStep()])
+
+		elif event.direction == gtk.gdk.SCROLL_DOWN:
+			subprocess.call([OSSMIX, DEVICE, "--", "-%.1f" % self.getStep()])
+
+		self.update()
+
+
+	def clickEvent(self, widget, *args):
+		"Starts or closes ossxmix when the volume applet is clicked."
+		if not hasattr(self, "ossxmix"):
+			self.ossxmix = subprocess.Popen([OSSXMIX, "-S"])
+		else:
+			if self.ossxmix.poll() == None:
+				self.ossxmix.terminate()
+			else:
+				self.ossxmix = subprocess.Popen([OSSXMIX, "-S"])
+
+		self.update()
+
+
+	def getVolume(self):
+		"Returns the current volume in decibels as a float."
+		process = subprocess.Popen([OSSMIX, DEVICE], stdout=subprocess.PIPE)
+		volume = float(process.communicate()[0].split()[-2])
+		process.wait()
+
+		return volume
+
+
+	def getStep(self):
+		"Returns the next volume step to make in decibels as a float."
+		return (MAX_DB - self.getVolume() + 1) * 0.1
+
+
+	def getIconName(self):
+		"Returns the icon name for the current volume level."
+		volume = self.getVolume()
+
+		for level in LEVELS:
+			if level[0] < volume:
+				return level[1]
+
+
+	def update(self, *args):
+		"Updates the volume applet's tooltip and icon."
+		self.icon.set_tooltip("Volume: %.1f dB" % self.getVolume())
+		self.icon.set_from_icon_name(self.getIconName())
+
+
+if __name__ == "__main__":
+	icon = StatusIcon()
+	icon.set_visible(True)
+
+	try:
+		gtk.main()
+	except KeyboardInterrupt:
+		print("")
+