Programming course with PySimpleGUI lessons

ProgrammingClassExamples/4a PSG (Sliders and combo).py

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+#PySimple examples (v 3.8)
+#Tony Crewe
+#Sep 2018
+
+import PySimpleGUI as sg
+
+column1 = [
+    [sg.Text('Pick operation', size = (15,1), font = ('Calibri', 12, 'bold'))],
+[sg.InputCombo(['Add','Subtract','Multiply','Divide'], size = (10,6))],
+    [sg.Text('', size =(1,4))]]
+column2 = [
+    [sg.ReadButton('Submit', font = ('Calibri', 12, 'bold'), button_color = ('White', 'Red'))],
+      [sg.Text('Result:', font = ('Calibri', 12, 'bold'))],[sg.InputText(size = (12,1), key = 'result')]
+    ]
+            
+
+layout = [
+    [sg.Text('Slider and Combo box demo', font = ('Calibri', 14,'bold'))],
+    [sg.Slider(range = (-9, 9),orientation = 'v', size = (5,20), default_value = 0),
+      sg.Slider(range = (-9, 9),orientation = 'v', size = (5, 20), default_value = 0),
+     sg.Text('   '), sg.Column(column1), sg.Column(column2)]]
+
+window = sg.Window('Enter & Display Data', grab_anywhere=False).Layout(layout)
+
+while True:
+    button, value = window.Read()
+    if button is not None:
+        if value[2] == 'Add':
+            result = value[0] + value[1]
+        elif value[2] == 'Multiply':
+            result = value[0] * value[1]
+        elif value[2] == 'Subtract':
+            result = value[0] - value[1]
+        elif value[2] == 'Divide':
+            if value[1] ==0:
+                sg.Popup('Second value can\'t be zero')
+                if value[0] == 0:
+                    result = 'NA'
+            else:
+                result = value[0] / value[1]
+        window.FindElement('result').Update(result)              
+    else:
+        break