New element! Frame - A frame with a label, Demo program from Frame, Graph elements

Demo_Graph_Noise.py

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+import time
+import random
+import PySimpleGUI as sg
+
+
+STEP_SIZE=1
+SAMPLES = 300
+SAMPLE_MAX = 300
+CANVAS_SIZE = (300,300)
+
+
+def main():
+    global g_exit, g_response_time
+
+    with sg.FlexForm('Enter graph size') as form:
+        layout = [[sg.T('Enter width, height of graph')],
+                  [sg.In(size=(6, 1)), sg.In(size=(6, 1))],
+                  [sg.Ok(), sg.Cancel()]]
+
+        b,v = form.LayoutAndRead(layout)
+        if b is None or b == 'Cancel':
+            exit(69)
+        w, h = int(v[0]), int(v[1])
+        CANVAS_SIZE = (w,h)
+
+    # start ping measurement thread
+
+    sg.ChangeLookAndFeel('Black')
+    sg.SetOptions(element_padding=(0,0))
+
+    layout = [  [sg.Quit( button_color=('white','black'))],
+               [sg.Graph(CANVAS_SIZE, (0,0), (SAMPLES,SAMPLE_MAX),background_color='black', key='graph')],]
+
+    form = sg.FlexForm('Canvas test', grab_anywhere=True, background_color='black', no_titlebar=False, use_default_focus=False)
+    form.Layout(layout)
+
+    form.Finalize()
+    graph = form.FindElement('graph')
+
+    prev_response_time = None
+    i=0
+    prev_x, prev_y = 0, 0
+    graph_value = 250
+    while True:
+        # time.sleep(.2)
+        button, values = form.ReadNonBlocking()
+        if button == 'Quit' or values is None:
+            break
+        graph_offset = random.randint(-10, 10)
+        graph_value = graph_value + graph_offset
+        if graph_value > SAMPLE_MAX:
+            graph_value = SAMPLE_MAX
+        if graph_value < 0:
+            graph_value = 0
+        new_x, new_y = i, graph_value
+        prev_value = graph_value
+        if i >= SAMPLES:
+            graph.Move(-STEP_SIZE,0)
+            prev_x = prev_x - STEP_SIZE
+        graph.DrawLine((prev_x, prev_y), (new_x, new_y), color='white')
+        # form.FindElement('graph').DrawPoint((new_x, new_y), color='red')
+        prev_x, prev_y = new_x, new_y
+        i += STEP_SIZE if i < SAMPLES else 0
+
+
+
+if __name__ == '__main__':
+    main()
+    exit(69)