1 files changed, 55 insertions, 0 deletions
diff --git a/voctogui/lib/warningoverlay.py b/voctogui/lib/warningoverlay.py
new file mode 100644
index 0000000..ad86b69
--- /dev/null
+++ b/voctogui/lib/warningoverlay.py
@@ -0,0 +1,55 @@
+import logging
+from gi.repository import GLib
+
+class VideoWarningOverlay(object):
+	""" Displays a Warning-Overlay above the Video-Feed of another VideoDisplay """
+
+	def __init__(self):
+		self.log = logging.getLogger('VideoWarningOverlay')
+
+		self.text = None
+		self.enabled = False
+		self.blink_state = False
+
+		GLib.timeout_add_seconds(1, self.on_blink_callback)
+
+
+	def on_blink_callback(self):
+		self.blink_state = not self.blink_state
+		return True
+
+	def enable(self, text=None):
+		self.text = text
+		self.enabled = True
+
+	def set_text(self, text=None):
+		self.text = text
+
+	def disable(self):
+		self.enabled = False
+
+	def draw_callback(self, cr, timestamp, duration):
+		if not self.enabled:
+			return
+
+		w = 1920
+		h = 1080/20
+
+		if self.blink_state:
+			cr.set_source_rgba(1.0, 0.0, 0.0, 0.8)
+		else:
+			cr.set_source_rgba(1.0, 0.5, 0.0, 0.8)
+
+		cr.rectangle(0, 0, w, h)
+		cr.fill()
+
+		text = "Stream is Blanked"
+		if self.text:
+			text += ": "+self.text
+
+		cr.set_font_size(h*0.75)
+		xbearing, ybearing, txtwidth, txtheight, xadvance, yadvance = cr.text_extents(text)
+
+		cr.move_to(w/2 - txtwidth/2, h*0.75)
+		cr.set_source_rgba(1.0, 1.0, 1.0, 1.0)
+		cr.show_text(text)