360 lines
16 KiB
Python
360 lines
16 KiB
Python
#!/usr/bin/env python
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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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Desktop "Rainmeter" style widget - Drive usage
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Requires: psutil
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Uses a "Gauge" to display drive usage
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"""
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ALPHA = 0.7
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THEME = 'black'
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UPDATE_FREQUENCY_MILLISECONDS = 20 * 1000
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BAR_COLORS = ('#23a0a0', '#56d856', '#be45be', '#5681d8', '#d34545', '#BE7C29')
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gsize = (50, 30)
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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, color=pointer_color)
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def new(self, degree=0, color=None):
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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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pointer_color = color or pointer_color
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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, minor_tick_step=5, 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, step=minor_tick_step)
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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, pointer_color=None):
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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, color=pointer_color)
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return False
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else:
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self.pointer.new(degree=self.pointer.stop_degree, color=pointer_color)
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return True
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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 update_window(window):
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particians = psutil.disk_partitions()
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for count, part in enumerate(particians):
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mount = part[0]
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try:
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usage = psutil.disk_usage(mount)
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window[('-NAME-', mount)].update(mount)
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# window[('-PROG-', mount)].update_bar(int(usage.percent))
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window[('-%-', mount)].update(f'{usage.percent}%')
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window[('-STATS-', mount)].update(f'{human_size(usage.used)} / {human_size(usage.total)} = {human_size(usage.free)} free')
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gauge = Gauge(pointer_color=window[('-GRAPH-', mount)].metadata,
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clock_color=window[('-GRAPH-', mount)].metadata,
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major_tick_color=sg.theme_input_background_color(),
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minor_tick_color=sg.theme_input_text_color(),
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pointer_outer_color=sg.theme_input_background_color(),
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major_tick_start_radius=gsize[1] - 10,
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minor_tick_start_radius=gsize[1] - 10,
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minor_tick_stop_radius=gsize[1] - 5,
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major_tick_stop_radius=gsize[1] - 5,
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clock_radius=gsize[1] - 5,
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pointer_outer_radius=gsize[1] - 5,
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major_tick_step=30,
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minor_tick_step=15,
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pointer_line_width=3,
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pointer_inner_radius=10,
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graph_elem=window[('-GRAPH-', mount)])
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gauge.change(degree=0)
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gauge.change(degree=180 * usage.percent / 100, step=180)
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gauge.change()
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except KeyError as e: # A key error means a new drive was added
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print('Got a key error, so a new drive was added. Window will restart')
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return False
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except BaseException as e:
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print(e)
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return True
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def create_window(location):
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layout = [[sg.Text('Drive Status', font='Any 16')]]
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# Add a row for every partician that has a bar graph and text stats
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particians = psutil.disk_partitions()
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for count, part in enumerate(particians):
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mount = part[0]
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try:
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bar_color = sg.theme_progress_bar_color()
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this_color = BAR_COLORS[count % len(BAR_COLORS)]
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usage = psutil.disk_usage(mount)
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stats_info = f'{human_size(usage.used)} / {human_size(usage.total)} = {human_size(usage.free)} free'
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layout += [[sg.Text(mount, size=(3, 1), key=('-NAME-', mount)),
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sg.Graph(gsize, (-gsize[0] // 2, 0), (gsize[0] // 2, gsize[1]), key=('-GRAPH-', mount), metadata=this_color),
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# sg.ProgressBar(100, 'h', size=(10, 15), key=('-PROG-', mount), bar_color=(this_color, bar_color[1])),
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sg.Text(f'{usage.percent}%', size=(6, 1), key=('-%-', mount)), sg.T(stats_info, size=(30, 1), key=('-STATS-', mount)),
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]]
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except:
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pass
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layout += [[sg.Text('Refresh', font='Any 8', key='-REFRESH-', enable_events=True), sg.Text('❎', enable_events=True, key='Exit Text')]]
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# ---------------- Create Window ----------------
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window = sg.Window('Drive Status Widget', layout, location=location, keep_on_top=True, grab_anywhere=True, no_titlebar=True, alpha_channel=ALPHA, use_default_focus=False,
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finalize=True)
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return window
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def main(location):
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# Turn off the popups because key errors are normal in this program.
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# Will get a key error is a new drive is added. Want to get the key error as an exception.
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sg.set_options(suppress_error_popups=True, suppress_raise_key_errors=False, suppress_key_guessing=True)
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sg.theme(THEME)
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window = create_window(location)
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update_window(window) # sets the progress bars
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# ---------------- Event Loop ----------------
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while True:
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event, values = window.read(timeout=UPDATE_FREQUENCY_MILLISECONDS)
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if event == sg.WIN_CLOSED or event.startswith('Exit'):
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break
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if not update_window(window):
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window.close()
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window = create_window(location)
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update_window(window)
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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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