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Update of ALL Matplotlib demos so they run on 3.1. Brought up to date too.

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PySimpleGUI 2019-09-19 13:32:25 -04:00
parent 6f02fb4a54
commit 3b24d8921e
5 changed files with 102 additions and 148 deletions
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85
DemoPrograms/Demo_Matplotlib_Browser_Paned.py
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@ -1,16 +1,12 @@
#!/usr/bin/env python
import sys
if sys.version_info[0] >= 3:
import PySimpleGUI as sg
import tkinter as Tk
else:
import PySimpleGUI27 as sg
import Tkinter as Tk
#!/usr/bin/env python
import PySimpleGUI as sg
import matplotlib
matplotlib.use('TkAgg')
from matplotlib.backends.backend_tkagg import FigureCanvasAgg
import matplotlib.backends.tkagg as tkagg
import inspect
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
"""
Demonstrates one way of embedding Matplotlib figures into a PySimpleGUI window.
@ -827,28 +823,15 @@ def AxesGrid():
return plt.gcf()
# The magic function that makes it possible.... glues together tkinter and pyplot using Canvas Widget
def draw_figure(canvas, figure, loc=(0, 0)):
""" Draw a matplotlib figure onto a Tk canvas
loc: location of top-left corner of figure on canvas in pixels.
Inspired by matplotlib source: lib/matplotlib/backends/backend_tkagg.py
"""
figure_canvas_agg = FigureCanvasAgg(figure)
def draw_figure(canvas, figure):
figure_canvas_agg = FigureCanvasTkAgg(figure, canvas)
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)
figure_canvas_agg.get_tk_widget().pack(side='top', fill='both', expand=1)
return figure_canvas_agg
# Position: convert from top-left anchor to center anchor
canvas.create_image(loc[0] + figure_w/2, loc[1] + figure_h/2, image=photo)
# Unfortunately, there's no accessor for the pointer to the native renderer
tkagg.blit(photo, figure_canvas_agg.get_renderer()._renderer, colormode=2)
# Return a handle which contains a reference to the photo object
# which must be kept live or else the picture disappears
return photo
def delete_figure_agg(figure_agg):
figure_agg.get_tk_widget().forget()
plt.close('all')
# -------------------------------- GUI Starts Here -------------------------------#
@ -871,40 +854,36 @@ fig_dict = {'Pyplot Simple':PyplotSimple, 'Pyplot Formatstr':PyplotFormatstr,'Py
sg.ChangeLookAndFeel('LightGreen')
figure_w, figure_h = 650, 650
# define the form layout
listbox_values = [key for key in fig_dict.keys()]
col_listbox = [[sg.Listbox(values=listbox_values, change_submits=True, size=(28, len(listbox_values)), key='func')],
listbox_values = list(fig_dict)
col_listbox = [[sg.Listbox(values=listbox_values, change_submits=True, size=(28, len(listbox_values)), key='-LISTBOX-')],
[sg.T(' ' * 12), sg.Exit(size=(5, 2))]]
col_multiline = sg.Column([[sg.Multiline(size=(70, 35), key='multiline')]])
col_canvas = sg.Column([[ sg.Canvas(size=(figure_w, figure_h), key='canvas')]])
col_multiline = sg.Column([[sg.Multiline(size=(70, 35), key='-MULTILINE-')]])
col_canvas = sg.Column([[ sg.Canvas(size=(figure_w, figure_h), key='-CANVAS-')]])
col_instructions = sg.Column([[sg.Pane([col_canvas, col_multiline], size=(800,600))],
[sg.Text('Grab square above and slide upwards to view source code for graph')]])
layout = [[sg.Text('Matplotlib Plot Test', font=('current 18'))],
[sg.Column(col_listbox), sg.Pane([col_canvas, col_multiline], size=(800,600))],
]
layout = [[sg.Text('Matplotlib Plot Test', font=('ANY 18'))],
[sg.Column(col_listbox), col_instructions],]
# create the form and show it without the plot
window = sg.Window('Demo Application - Embedding Matplotlib In PySimpleGUI',resizable=True, grab_anywhere=False).Layout(layout)
window.Finalize()
window = sg.Window('Demo Application - Embedding Matplotlib In PySimpleGUI',layout, resizable=True, finalize=True)
canvas_elem = window.FindElement('canvas')
multiline_elem= window.FindElement('multiline')
canvas_elem = window.FindElement('-CANVAS-')
multiline_elem= window.FindElement('-MULTILINE-')
figure_agg = None
while True:
event, values = window.Read()
# print(event)
# show it all again and get buttons
if event in (None, 'Exit'):
break
try:
choice = values['func'][0]
func = fig_dict[choice]
except:
pass
multiline_elem.Update(inspect.getsource(func))
plt.clf()
fig = func()
fig_photo = draw_figure(canvas_elem.TKCanvas, fig)
if figure_agg:
# ** IMPORTANT ** Clean up previous drawing before drawing again
delete_figure_agg(figure_agg)
choice = values['-LISTBOX-'][0] # get first listbox item chosen (returned as a list)
func = fig_dict[choice] # get function to call from the dictionary
window['-MULTILINE-'].Update(inspect.getsource(func)) # show source code to function in multiline
fig = func() # call function to get the figure
figure_agg = draw_figure(window['-CANVAS-'].TKCanvas, fig) # draw the figure