309 lines
14 KiB
Python
309 lines
14 KiB
Python
import PySimpleGUI as sg
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import psutil
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import sys
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import math
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"""
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Another simple Desktop Widget using PySimpleGUI
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This time a CPU Usage indicator using a custom Gauge element
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The Gauge class was developed by the brilliant PySimpleGUI user and support-helper @jason990420
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It has been hacked on a bit, had classes and functions moved around. It could be cleaned up some
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but it's "good enough" at this point to release as a demo.
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This is a good example of how you can use Graph Elements to create your own custom elements.
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This Gauge element is created from a Graph element.
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Copyright 2020 PySimpleGUI.org
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"""
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class Gauge():
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def mapping(func, sequence, *argc):
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"""
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Map function with extra argument, not for tuple.
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: Parameters
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func - function to call.
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sequence - list for iteration.
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argc - more arguments for func.
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: Return
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list of func(element of sequence, *argc)
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"""
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if isinstance(sequence, list):
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return list(map(lambda i: func(i, *argc), sequence))
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else:
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return func(sequence, *argc)
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def add(number1, number2):
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"""
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Add two number
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: Parameter
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number1 - number to add.
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numeer2 - number to add.
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: Return
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Addition result for number1 and number2.
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"""
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return number1 + number1
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def limit(number):
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"""
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Limit angle in range 0 ~ 360
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: Parameter
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number: angle degree.
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: Return
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angel degree in 0 ~ 360, return 0 if number < 0, 360 if number > 360.
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"""
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return max(min(360, number), 0)
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class Clock():
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"""
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Draw background circle or arc
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All angles defined as clockwise from negative x-axis.
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"""
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def __init__(self, center_x=0, center_y=0, radius=100, start_angle=0,
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stop_angle=360, fill_color='white', line_color='black', line_width=2, graph_elem=None):
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instance = Gauge.mapping(isinstance, [center_x, center_y, radius, start_angle,
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stop_angle, line_width], (int, float)) + Gauge.mapping(isinstance,
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[fill_color, line_color], str)
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if False in instance:
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raise ValueError
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start_angle, stop_angle = Gauge.limit(start_angle), Gauge.limit(stop_angle)
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self.all = [center_x, center_y, radius, start_angle, stop_angle,
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fill_color, line_color, line_width]
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self.figure = []
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self.graph_elem = graph_elem
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self.new()
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def new(self):
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"""
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Draw Arc or circle
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"""
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x, y, r, start, stop, fill, line, width = self.all
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start, stop = (180 - start, 180 - stop) if stop < start else (180 - stop, 180 - start)
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if start == stop % 360:
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self.figure.append(self.graph_elem.DrawCircle((x, y), r, fill_color=fill,
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line_color=line, line_width=width))
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else:
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self.figure.append(self.graph_elem.DrawArc((x - r, y + r), (x + r, y - r), stop - start,
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start, style='arc', arc_color=fill))
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def move(self, delta_x, delta_y):
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"""
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Move circle or arc in clock by delta x, delta y
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"""
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if False in Gauge.mapping(isinstance, [delta_x, delta_y], (int, float)):
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raise ValueError
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self.all[0] += delta_x
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self.all[1] += delta_y
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for figure in self.figure:
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self.graph_elem.MoveFigure(figure, delta_x, delta_y)
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class Pointer():
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"""
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Draw pointer of clock
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All angles defined as clockwise from negative x-axis.
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"""
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def __init__(self, center_x=0, center_y=0, angle=0, inner_radius=20,
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outer_radius=80, outer_color='white', pointer_color='blue',
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origin_color='black', line_width=2, graph_elem=None):
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instance = Gauge.mapping(isinstance, [center_x, center_y, angle, inner_radius,
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outer_radius, line_width], (int, float)) + Gauge.mapping(isinstance,
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[outer_color, pointer_color, origin_color], str)
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if False in instance:
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raise ValueError
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self.all = [center_x, center_y, angle, inner_radius, outer_radius,
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outer_color, pointer_color, origin_color, line_width]
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self.figure = []
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self.stop_angle = angle
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self.graph_elem = graph_elem
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self.new(degree=angle)
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def new(self, degree=0):
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"""
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Draw new pointer by angle, erase old pointer if exist
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degree defined as clockwise from negative x-axis.
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"""
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(center_x, center_y, angle, inner_radius, outer_radius,
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outer_color, pointer_color, origin_color, line_width) = self.all
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if self.figure != []:
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for figure in self.figure:
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self.graph_elem.DeleteFigure(figure)
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self.figure = []
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d = degree - 90
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self.all[2] = degree
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dx1 = int(2 * inner_radius * math.sin(d / 180 * math.pi))
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dy1 = int(2 * inner_radius * math.cos(d / 180 * math.pi))
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dx2 = int(outer_radius * math.sin(d / 180 * math.pi))
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dy2 = int(outer_radius * math.cos(d / 180 * math.pi))
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self.figure.append(self.graph_elem.DrawLine((center_x - dx1, center_y - dy1),
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(center_x + dx2, center_y + dy2),
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color=pointer_color, width=line_width))
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self.figure.append(self.graph_elem.DrawCircle((center_x, center_y), inner_radius,
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fill_color=origin_color, line_color=outer_color, line_width=line_width))
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def move(self, delta_x, delta_y):
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"""
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Move pointer with delta x and delta y
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"""
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if False in Gauge.mapping(isinstance, [delta_x, delta_y], (int, float)):
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raise ValueError
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self.all[:2] = [self.all[0] + delta_x, self.all[1] + delta_y]
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for figure in self.figure:
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self.graph_elem.MoveFigure(figure, delta_x, delta_y)
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class Tick():
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"""
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Create tick on click for minor tick, also for major tick
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All angles defined as clockwise from negative x-axis.
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"""
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def __init__(self, center_x=0, center_y=0, start_radius=90, stop_radius=100,
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start_angle=0, stop_angle=360, step=6, line_color='black', line_width=2, graph_elem=None):
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instance = Gauge.mapping(isinstance, [center_x, center_y, start_radius,
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stop_radius, start_angle, stop_angle, step, line_width],
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(int, float)) + [Gauge.mapping(isinstance, line_color, (list, str))]
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if False in instance:
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raise ValueError
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start_angle, stop_angle = Gauge.limit(start_angle), Gauge.limit(stop_angle)
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self.all = [center_x, center_y, start_radius, stop_radius,
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start_angle, stop_angle, step, line_color, line_width]
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self.figure = []
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self.graph_elem = graph_elem
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self.new()
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def new(self):
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"""
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Draw ticks on clock
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"""
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(x, y, start_radius, stop_radius, start_angle, stop_angle, step,
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line_color, line_width) = self.all
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start_angle, stop_angle = (180 - start_angle, 180 - stop_angle
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) if stop_angle < start_angle else (180 - stop_angle, 180 - start_angle)
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for i in range(start_angle, stop_angle + 1, step):
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start_x = x + start_radius * math.cos(i / 180 * math.pi)
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start_y = y + start_radius * math.sin(i / 180 * math.pi)
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stop_x = x + stop_radius * math.cos(i / 180 * math.pi)
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stop_y = y + stop_radius * math.sin(i / 180 * math.pi)
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self.figure.append(self.graph_elem.DrawLine((start_x, start_y),
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(stop_x, stop_y), color=line_color, width=line_width))
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def move(self, delta_x, delta_y):
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"""
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Move ticks by delta x and delta y
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"""
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if False in Gauge.mapping(isinstance, [delta_x, delta_y], (int, float)):
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raise ValueError
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self.all[0] += delta_x
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self.all[1] += delta_y
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for figure in self.figure:
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self.graph_elem.MoveFigure(figure, delta_x, delta_y)
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"""
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Create Gauge
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All angles defined as count clockwise from negative x-axis.
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Should create instance of clock, pointer, minor tick and major tick first.
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"""
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def __init__(self, center=(0, 0), start_angle=0, stop_angle=180, major_tick_width=5, minor_tick_width=2,major_tick_start_radius=90, major_tick_stop_radius=100, major_tick_step=30, clock_radius=100, pointer_line_width=5, pointer_inner_radius=10, pointer_outer_radius=75, pointer_color='white', pointer_origin_color='black', pointer_outer_color='white', pointer_angle=0, degree=0, clock_color='white', major_tick_color='black', minor_tick_color='black', minor_tick_start_radius=90, minor_tick_stop_radius=100, graph_elem=None):
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self.clock = Gauge.Clock(start_angle=start_angle, stop_angle=stop_angle, fill_color=clock_color, radius=clock_radius, graph_elem=graph_elem)
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self.minor_tick = Gauge.Tick(start_angle=start_angle, stop_angle=stop_angle, line_width=minor_tick_width, line_color=minor_tick_color, start_radius=minor_tick_start_radius, stop_radius=minor_tick_stop_radius, graph_elem=graph_elem)
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self.major_tick = Gauge.Tick(start_angle=start_angle, stop_angle=stop_angle, line_width=major_tick_width, start_radius=major_tick_start_radius, stop_radius=major_tick_stop_radius, step=major_tick_step, line_color=major_tick_color, graph_elem=graph_elem)
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self.pointer = Gauge.Pointer(angle=pointer_angle, inner_radius=pointer_inner_radius, outer_radius=pointer_outer_radius, pointer_color=pointer_color, outer_color=pointer_outer_color, origin_color=pointer_origin_color, line_width=pointer_line_width, graph_elem=graph_elem)
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self.center_x, self.center_y = self.center = center
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self.degree = degree
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self.dx = self.dy = 1
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def move(self, delta_x, delta_y):
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"""
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Move gauge to move all componenets in gauge.
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"""
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self.center_x, self.center_y =self.center = (
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self.center_x+delta_x, self.center_y+delta_y)
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if self.clock:
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self.clock.move(delta_x, delta_y)
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if self.minor_tick:
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self.minor_tick.move(delta_x, delta_y)
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if self.major_tick:
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self.major_tick.move(delta_x, delta_y)
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if self.pointer:
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self.pointer.move(delta_x, delta_y)
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def change(self, degree=None, step=1):
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"""
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Rotation of pointer
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call it with degree and step to set initial options for rotation.
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Without any option to start rotation.
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"""
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if self.pointer:
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if degree != None:
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self.pointer.stop_degree = degree
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self.pointer.step = step if self.pointer.all[2] < degree else -step
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return True
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now = self.pointer.all[2]
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step = self.pointer.step
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new_degree = now + step
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if ((step > 0 and new_degree < self.pointer.stop_degree) or
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(step < 0 and new_degree > self.pointer.stop_degree)):
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self.pointer.new(degree=new_degree)
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return False
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else:
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self.pointer.new(degree=self.pointer.stop_degree)
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return True
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ALPHA = 0.8
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THEME = 'Dark purple 6 '
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UPDATE_FREQUENCY_MILLISECONDS = 2 * 1000
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def human_size(bytes, units=(' bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB')):
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""" Returns a human readable string reprentation of bytes"""
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return str(bytes) + ' ' + units[0] if bytes < 1024 else human_size(bytes >> 10, units[1:])
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def main(location):
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sg.theme(THEME)
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gsize = (100, 55)
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layout = [
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[sg.T('CPU', font='Any 20', background_color='black')],
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[sg.Graph(gsize, (-gsize[0] // 2, 0), (gsize[0] // 2, gsize[1]), key='-Graph-')],
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[sg.T(size=(5, 1), font='Any 20', justification='c', background_color='black', k='-gauge VALUE-')]]
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window = sg.Window('CPU Usage Widget Square', layout, location=location, no_titlebar=True, grab_anywhere=True, margins=(0, 0), element_padding=(0, 0), alpha_channel=ALPHA, background_color='black', element_justification='c', finalize=True, right_click_menu=[[''], 'Exit'])
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gauge = Gauge(pointer_color=sg.theme_text_color(), clock_color=sg.theme_text_color(), major_tick_color=sg.theme_text_color(),
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minor_tick_color=sg.theme_input_background_color(), pointer_outer_color=sg.theme_text_color(), major_tick_start_radius=45,
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minor_tick_start_radius=45, minor_tick_stop_radius=50, major_tick_stop_radius=50, major_tick_step=30, clock_radius=50, pointer_line_width=3, pointer_inner_radius=10, pointer_outer_radius=50, graph_elem=window['-Graph-'])
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gauge.change(degree=0)
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while True: # Event Loop
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cpu_percent = psutil.cpu_percent(interval=1)
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if gauge.change():
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new_angle = cpu_percent*180/100
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window['-gauge VALUE-'].update(f'{int(cpu_percent)}%')
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gauge.change(degree=new_angle, step=180)
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gauge.change()
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# ----------- update the graphics and text in the window ------------
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# update the window, wait for a while, then check for exit
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event, values = window.read(timeout=UPDATE_FREQUENCY_MILLISECONDS)
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if event == sg.WIN_CLOSED or event == 'Exit':
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break
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window.close()
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if __name__ == '__main__':
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if len(sys.argv) > 1:
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location = sys.argv[1].split(',')
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location = (int(location[0]), int(location[1]))
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else:
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location = (None, None)
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main(location)
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