Major update of all demo programs to use new PEP8 bindings, etc

DemoPrograms old/Demo_Turtle.py

@@ -0,0 +1,84 @@
+#!/usr/bin/env python
+import sys
+if sys.version_info[0] >= 3:
+    import PySimpleGUI as sg
+else:
+    import PySimpleGUI27 as sg
+
+import turtle
+
+"""
+    Demo showing how to integrate drawing on a Canvas using  Turtle with PySimpleGUI
+    The patern to follow:
+        Create Window & Finalize
+        Get the tkinter Canvas from the Canvas element
+        Draw on the tkinter Canvas using turtle commands.
+        Results are shown on the canvas immiedately after button press / drawing command
+"""
+
+
+layout = [[ sg.Text('My layout') ],
+          [sg.Canvas(size=(800,800), key='_canvas_')],
+          [ sg.Button('F'), sg.Button('B'), sg.Button('L'), sg.Button('R')],
+          [sg.Button('Spiral'), sg.Button('Inside Out'), sg.Button('Circles')]]
+
+window = sg.Window('My new window').Layout(layout).Finalize()
+
+canvas = window.FindElement('_canvas_').TKCanvas
+
+t = turtle.RawTurtle(canvas)
+t.pencolor("#ff0000") # Red
+
+t.penup()
+t.pendown()
+
+while True:     # Event Loop
+    event, values = window.Read()
+    if event is None:
+        break
+
+    if event == 'F':
+        t.forward(100)
+    elif event == 'B':
+        t.back(100)
+    elif event == 'L':
+        t.left(90)
+    elif event == 'R':
+        t.right(90)
+    elif event == 'Spiral':
+        canvas.config(bg='light green')
+        t.color("blue")
+        def sqrfunc(size):
+            for i in range(4):
+                t.fd(size)
+                t.left(90)
+                size = size - 5
+        sqrfunc(146)
+        sqrfunc(126)
+        sqrfunc(106)
+        sqrfunc(86)
+        sqrfunc(66)
+        sqrfunc(46)
+        sqrfunc(26)
+    elif event == 'Inside Out':
+        canvas.config(bg = "light green")
+        t.color("blue")
+        def sqrfunc(size):
+            for i in range(4):
+                t.fd(size)
+                t.left(90)
+                size = size + 5
+        sqrfunc(6)
+        sqrfunc(26)
+        sqrfunc(46)
+        sqrfunc(66)
+        sqrfunc(86)
+        sqrfunc(106)
+        sqrfunc(126)
+        sqrfunc(146)
+    elif event == 'Circles':
+        t.speed(0)
+        for i in range(400):
+            t.circle(2 * i*.25)
+            t.circle(-2 * i*.25)
+            t.left(i)