89 lines
2.5 KiB
Python
89 lines
2.5 KiB
Python
#!/usr/bin/env python
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import PySimpleGUI as sg
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import random
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import sys
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'''
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Example of random line in Graph element.
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'''
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sg.change_look_and_feel('black')
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STEP_SIZE = 1
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SAMPLES = 300
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SAMPLE_MAX = 300
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CANVAS_SIZE = (300, 300)
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def main():
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global g_exit, g_response_time
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layout = [[sg.Text('Enter width, height of graph')],
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[sg.Input(300, size=(6, 1), key='w'), sg.Input(300, size=(6, 1), key='h')],
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[sg.Ok(), sg.Cancel()]]
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window = sg.Window('Enter graph size', layout)
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event, values = window.read()
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if event is None or event == 'Cancel':
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return
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CANVAS_SIZE = int(values['w']), int(values['h'])
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window.close()
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# start ping measurement thread
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sg.change_look_and_feel('Black')
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sg.set_options(element_padding=(0, 0))
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layout = [[sg.Button('Quit', button_color=('white', 'black'))],
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[sg.Graph(CANVAS_SIZE, (0, 0), (SAMPLES, SAMPLE_MAX),
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background_color='black', key='graph')], ]
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window = sg.Window('Canvas test', layout, grab_anywhere=True,
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background_color='black', no_titlebar=False,
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use_default_focus=False, finalize=True)
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graph = window['graph'] # type:sg.Graph
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graph.draw_line((SAMPLES//2, 0), (SAMPLES//2,SAMPLE_MAX),color='white')
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graph.draw_line((0,SAMPLE_MAX//2), (SAMPLES, SAMPLE_MAX//2),color='white')
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prev_response_time = None
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i = 0
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prev_x, prev_y = 0, 0
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graph_value = 250
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figures = []
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while True:
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event, values = window.read(timeout=0)
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if event == 'Quit' or event is None:
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break
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graph_offset = random.randint(-10, 10)
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graph_value = graph_value + graph_offset
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if graph_value > SAMPLE_MAX:
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graph_value = SAMPLE_MAX
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if graph_value < 0:
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graph_value = 0
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new_x, new_y = i, graph_value
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prev_value = graph_value
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if i >= SAMPLES:
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graph.delete_figure(figures[0])
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figures = figures[1:]
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for count, figure in enumerate(figures):
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graph.move_figure(figure, -STEP_SIZE, 0)
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prev_x = prev_x - STEP_SIZE
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# print(f'io={i} {prev_x,prev_y} to {new_x, new_y}')
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last_figure = graph.draw_line((prev_x, prev_y), (new_x, new_y), color='white')
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figures.append(last_figure)
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prev_x, prev_y = new_x, new_y
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i += STEP_SIZE if i < SAMPLES else 0
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window.close()
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if __name__ == '__main__':
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main()
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