From 06f4ef810c7089c8b994f438b90b293762133bdd Mon Sep 17 00:00:00 2001
From: Nao Pross <np@0hm.ch>
Date: Tue, 14 Dec 2021 19:40:03 +0100
Subject: Implement network_value to show BER

---
 src/gr-fadingui/python/ber.py | 10 ++--------
 src/gui/gui.py                | 11 +++++++++--
 src/gui/net.py                | 24 +++++++++++++++++++++---
 3 files changed, 32 insertions(+), 13 deletions(-)

(limited to 'src')

diff --git a/src/gr-fadingui/python/ber.py b/src/gr-fadingui/python/ber.py
index 1c5debf..664780f 100644
--- a/src/gr-fadingui/python/ber.py
+++ b/src/gr-fadingui/python/ber.py
@@ -43,7 +43,7 @@ class ber(gr.sync_block):
         self.vgl=vgl
         self.vlen=vlen
 
-        self.ber_samples = RingBuffer(capacity=2000, dtype=int)
+        self.ber_samples = RingBuffer(capacity=100, dtype=int)
         self.ber_samples.extend(np.zeros(self.ber_samples.maxlen))
 
         # Create a socket and parse remote machine url
@@ -84,8 +84,6 @@ class ber(gr.sync_block):
         log.debug(f"Length: {len(inp)}")
         # log.debug(f"Inp_vector:{inp}")
 
-        
-
         for i in inp:
             i = np.array(i, dtype=np.uint8)
             v = np.array(self.vgl, dtype=np.uint8) ^ i
@@ -102,11 +100,7 @@ class ber(gr.sync_block):
         ber_max, ber_min, ber_avg = self.ber_stats()
         log.debug(f"Statistics: {ber_max}, {ber_min}, {ber_avg}")
 
-        #self.send(self.encode(ber_max, ber_min, ber_avg))
-        self.send(self.encode(trueber))
-        self.send(self.encode(ber_max))
-        self.send(self.encode(ber_min))
-        self.send(self.encode(ber_avg))
+        self.send(self.encode([trueber, ber_max, ber_avg]))
 
         return len(inp)
         #return len(input_items[0])
diff --git a/src/gui/gui.py b/src/gui/gui.py
index 6091618..9ac69f7 100755
--- a/src/gui/gui.py
+++ b/src/gui/gui.py
@@ -253,12 +253,18 @@ with window(label="Bit Error Rate ", width=300, height=150, pos=(1200,875), no_t
             add_theme_color(mvThemeCol_Text,(0,0,0))#Schwarz
             add_theme_style(mvStyleVar_FrameRounding, 5)
 
-    add_button(label="BER", height=60, width=150,pos=(75,60))
-    bind_item_theme(last_item(),"button_ber")
+    add_button(label="BER", height=60, width=-1, tag="ber_value")
+    bind_item_theme(last_item(), "button_ber")
 
 # bind_item_theme(ber_window, "ber_window")
 # bind_item_font(ber_window, test)
 
+def set_ber(values):
+    ber_curr, ber_max, ber_avg = values
+    configure_item("ber_value", label=f"Current: {ber_curr}, Max: {ber_max}, Avg: {ber_avg}")
+
+ber_value = net.network_value(url="udp://localhost:31420", dtype=float, refresh_func=set_ber)
+
 #================================================
 # Picture Window
 with window(label="Picture", width=400, height=300, pos=(0,825)) as picture_window : 
@@ -275,6 +281,7 @@ set_primary_window("primary_window", True)
 while is_dearpygui_running():
     for plt, tag in network_plots.items():
         plt.refresh_series(tag)
+    ber_value.refresh()
 
     render_dearpygui_frame()
 
diff --git a/src/gui/net.py b/src/gui/net.py
index 715e7a0..f836f42 100644
--- a/src/gui/net.py
+++ b/src/gui/net.py
@@ -12,11 +12,12 @@ class udpsource:
     """
     Creates an UDP listening socket
     """
-    def __init__(self, url, dtype, timeout=0.05):
+    def __init__(self, url, dtype, timeout=0.05, blocksize=1024):
         self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
         self.url = urlparse(url)
         self.dtype = dtype
         self.timeout = timeout
+        self.blocksize = blocksize
 
     def __del__(self):
         self.sock.close()
@@ -33,8 +34,7 @@ class udpsource:
             return None
 
         # read from socket
-        blocksize = 1024 * 4
-        string = ready[0].recv(nblocks * blocksize).decode("ascii")
+        string = ready[0].recv(nblocks * self.blocksize).decode("ascii")
 
         # decode string, remove empty values
         chunks = filter(None, re.split(r"\[(.+?)\]", string))
@@ -55,6 +55,24 @@ class udpsource:
 
         return values
 
+class network_value(udpsource):
+    def __init__(self, url, dtype, refresh_func):
+        udpsource.__init__(self, url, dtype, blocksize=16)
+
+        self._refresh = refresh_func
+        self.value = None
+
+        self.bind()
+
+    def read(self):
+        return udpsource.read(self, 1)
+
+    def refresh(self):
+        self.value = self.read()
+        if self.value:
+            self._refresh(self.value)
+
+
 class network_plot(udpsource):
     """
     Wraps a udpsource while at the same time intefacing with DearPyGUI as a plot element.
-- 
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