basic gui

1 files changed, 111 insertions, 0 deletions

diff --git a/voctogui/voctogui.py b/voctogui/voctogui.py
new file mode 100755
index 0000000..39c2957
--- /dev/null
+++ b/voctogui/voctogui.py
@@ -0,0 +1,111 @@
+#!/usr/bin/python3
+import gi, signal, logging, sys, os
+
+# import GStreamer and GLib-Helper classes
+gi.require_version('Gst', '1.0')
+from gi.repository import Gtk, Gdk, Gst, GObject, GdkX11, GstVideo
+
+# check min-version
+minGst = (1, 5)
+minPy = (3, 0)
+
+if Gst.version() < minGst:
+	raise Exception("GStreamer version", Gst.version(), 'is too old, at least', minGst, 'is required')
+
+if sys.version_info < minPy:
+	raise Exception("Python version", sys.version_info, 'is too old, at least', minPy, 'is required')
+
+
+# init GObject & Co. before importing local classes
+GObject.threads_init()
+Gdk.init([])
+Gtk.init([])
+Gst.init([])
+
+# import local classes
+from lib.args import Args
+from lib.uibuilder import UiBuilder
+
+# main class
+class Voctogui(object):
+	def __init__(self):
+		self.log = logging.getLogger('Voctogui')
+		
+		# Instanciate GTK-Builder
+		self.builder = UiBuilder()
+
+		# Uf a UI-File was specified on the Command-Line, load it
+		if Args.ui_file:
+			self.log.info('loading ui-file from file specified on command-line: %s', self.options.ui_file)
+			self.builder.add_from_file(Args.ui_file)
+
+		else:
+			# Paths to look for the gst-switch UI-File
+			paths = [
+				os.path.join(os.path.dirname(os.path.realpath(__file__)), 'ui/voctogui.ui'),
+				'/usr/lib/voctogui/ui/voctogui.ui'
+			]
+
+			# Look for a gst-switch UI-File and load it
+			for path in paths:
+				self.log.debug('trying to load ui-file from file %s', path)
+
+				if os.path.isfile(path):
+					self.log.info('loading ui-file from file %s', path)
+					self.builder.add_from_file(path)
+					break
+
+		self.builder.setup()
+
+
+	def run(self):
+		self.log.info('setting UI visible')
+		self.builder.show()
+
+		try:
+			self.log.info('running Gtk-MainLoop')
+			Gtk.main()
+			self.log.info('Gtk-MainLoop ended')
+		except KeyboardInterrupt:
+			self.log.info('Terminated via Ctrl-C')
+
+	def quit(self):
+		self.log.info('quitting Gtk-MainLoop')
+		Gtk.main_quit()
+
+
+# run mainclass
+def main():
+	# configure logging
+	docolor = (Args.color == 'always') or (Args.color == 'auto' and sys.stderr.isatty())
+
+	if Args.verbose == 2:
+		level = logging.DEBUG
+	elif Args.verbose == 1:
+		level = logging.INFO
+	else:
+		level = logging.WARNING
+
+	if docolor:
+		format = '\x1b[33m%(levelname)8s\x1b[0m \x1b[32m%(name)s\x1b[0m: %(message)s'
+	else:
+		format = '%(levelname)8s %(name)s: %(message)s'
+
+	logging.basicConfig(level=level, format=format)
+
+	# make killable by ctrl-c
+	logging.debug('setting SIGINT handler')
+	signal.signal(signal.SIGINT, signal.SIG_DFL)
+
+	logging.info('Python Version: %s', sys.version_info)
+	logging.info('GStreamer Version: %s', Gst.version())
+
+	# init main-class and main-loop
+	logging.debug('initializing Voctogui')
+	voctogui = Voctogui()
+
+	logging.debug('running Voctogui')
+	voctogui.run()
+
+if __name__ == '__main__':
+	main()