Latest updates from Tony

ProgrammingClassExamples/MacOS versions/10e PSG (Same Window).py

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+#matplotlib, numpy, pyplot
+#Tony Crewe
+#Oct 2018 MacOs
+
+import PySimpleGUI as sg
+import matplotlib
+# added this to work with MacOs
+matplotlib.use('TkAgg')
+import matplotlib.pyplot as plt
+import matplotlib.ticker as ticker
+from matplotlib.backends.backend_tkagg import FigureCanvasAgg
+import matplotlib.backends.tkagg as tkagg
+import numpy as np
+import tkinter as tk
+
+sg.SetOptions (background_color = 'LightBlue',
+            element_background_color = 'LightBlue',
+            text_element_background_color = 'LightBlue',
+               font = ('Arial', 14, 'bold'),
+               text_color = 'DarkBlue',
+               input_text_color ='DarkBlue',
+               button_color = ('DarkBlue', 'White'))
+
+def draw_figure(canvas, figure, loc = (0,0)):
+
+    figure_canvas_agg = FigureCanvasAgg(figure) 
+    figure_canvas_agg.draw()
+    figure_x, figure_y, figure_w, figure_h = figure.bbox.bounds
+    figure_w, figure_h = int(figure_w), int(figure_h)
+    photo = tk.PhotoImage(master=canvas, width=figure_w, height=figure_h)
+    canvas.create_image(loc[0] + figure_w/2, loc[1] + figure_h/2, image=photo)
+    tkagg.blit(photo, figure_canvas_agg.get_renderer()._renderer, colormode=2)
+    return photo
+
+
+#------------ Matplotlib code --------------------
+
+def set_plot(amp, function):
+    global figure_w, figure_h, fig
+    fig=plt.figure()
+    ax = fig.add_subplot(111)
+    x = np.linspace(-np.pi*2, np.pi*2, 100)
+    if function == 'sine':
+        y= amp*np.sin(x)
+        ax.set_title('sin(x)')
+    else:
+        y=amp*np.cos(x)
+        ax.set_title('cos(x)')
+    plt.plot(x/np.pi,y)
+
+    
+    #centre bottom and left axes to zero
+
+    ax.spines['left'].set_position('zero')
+    ax.spines['right'].set_color('none')
+    ax.spines['bottom'].set_position('zero')
+    ax.spines['top'].set_color('none')
+
+    #Format axes - nicer eh!
+    ax.xaxis.set_major_formatter(ticker.FormatStrFormatter('%g $\pi$'))
+
+    figure_x, figure_y, figure_w, figure_h = fig.bbox.bounds
+amp = 1
+function = 'sine'
+set_plot(amp, function)
+
+#------------End Matplotlib code --------------------
+
+#using one window based on two columns instead of Tabs
+column1 = [[sg.Text('Select Amplitude and trig function type', font = ('Calibri', 18, 'bold'))],
+               [sg.Spin([sz for sz in range (1,5)], initial_value =1, size = (2,1), key = '_spin_'),
+                sg.Text('Amplitude', size = (10, 1), font = ('Calibri', 12, 'bold'))],
+               [sg.InputCombo(['sine', 'cosine'], size = (8, 4), key = '_function_'),
+                sg.Text('Function', size = (10, 1),font = ('Calibri', 12, 'bold'))],
+               [sg.ReadButton('Redraw Plot')],
+               [sg.Text('', size = (1, 27))]]
+               
+column2 = [[sg.Text('Plot Test - PySimpleGUI and Matplotlib and options', font = ('Calibri', 18, 'bold'))],
+          [sg.Canvas(size = (figure_w, figure_h), key = '_canvas_')],
+          [sg.OK(pad=((figure_w / 2, 0), 3), size=(6, 2))]]
+
+layout = [[sg.Column(column1), sg.Column(column2)]]
+window = sg.Window('Matplot, PySimpleGUI and options', force_toplevel = True).Layout(layout).Finalize()
+
+fig_photo = draw_figure(window.FindElement('_canvas_').TKCanvas, fig)
+
+while True:
+    button, value = window.Read()
+    if button == 'Redraw Plot':
+        amp = int(value['_spin_'])
+        function = value['_function_']
+        set_plot(amp,function)
+        fig_photo = draw_figure(window.FindElement('_canvas_').TKCanvas, fig)
+        
+    if button is None:   
+        break
+
+