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gauge.py
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gauge.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# -*- coding: 850 -*-
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import math
class AnalogGauge(QWidget):
valueChanged = pyqtSignal(int)
def __init__(self, parent=None, typeOf='Bar'):
super(AnalogGauge, self).__init__(parent)
self.type = typeOf
if self.type == 'Bar':
self.setMaximumWidth(50)
self.setSizePolicy(QSizePolicy.Expanding,QSizePolicy.Expanding)
if self.type == 'Radial':
self.setMinimumSize(170, 170)
self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.use_timer_event = False
self.black = QColor(0, 0, 0, 255)
# self.valueColor = QColor(50, 50, 50, 255)
# self.set_valueColor(50, 50, 50, 255)
# self.NeedleColor = QColor(50, 50, 50, 255)
self.set_NeedleColor(50, 50, 50, 255)
self.NeedleColorReleased = self.NeedleColor
# self.NeedleColorDrag = QColor(255, 0, 00, 255)
self.set_NeedleColorDrag(255, 0, 00, 255)
self.set_ScaleValueColor(50, 50, 50, 255)
self.set_DisplayValueColor(50, 50, 50, 255)
# self.CenterPointColor = QColor(50, 50, 50, 255)
self.set_CenterPointColor(50, 50, 50, 255)
# self.valueColor = black
# self.black = QColor(0, 0, 0, 255)
self.value_needle_count = 1
self.value_needle = QObject
if self.type == 'Bar':
self.change_value_needle_style([QPolygon([
QPoint(0, 4),
QPoint(0, -4),
QPoint(7, 0)
])])
self.value_min = 0
self.value_max = 150
self.set_enable_ScaleText(True)
self.scale_fontname = "Decorative"
self.initial_scale_fontsize = 6
self.scale_fontsize = self.initial_scale_fontsize
self.enable_CenterPoint = False
self.set_enable_barGraph(False)
if self.type == 'Radial':
self.change_value_needle_style([QPolygon([
QPoint(4, 4),
QPoint(-4, 4),
QPoint(-3, -120),
QPoint(0, -126),
QPoint(3, -120)
])])
self.value_min = 0
self.value_max = 1000
self.set_enable_ScaleText(True)
self.scale_fontname = "Decorative"
self.initial_scale_fontsize = 15
self.scale_fontsize = self.initial_scale_fontsize
self.enable_CenterPoint = True
self.set_enable_barGraph(True)
self.value = self.value_min
self.value_offset = 0
self.value_needle_snapzone = 0.05
self.last_value = 0
# self.value2 = 0
# self.value2Color = QColor(0, 0, 0, 255)
self.gauge_color_outer_radius_factor = 1
self.gauge_color_inner_radius_factor = 0.95
self.center_horizontal_value = 0
self.center_vertical_value = 0
self.debug1 = None
self.debug2 = None
self.scale_angle_start_value = 135
self.scale_angle_size = 270
self.angle_offset = 0
# self.scala_main_count = 10
self.set_scala_main_count(10)
self.scala_subdiv_count = 5
self.pen = QPen(QColor(0, 0, 0))
self.font = QFont('Decorative', 20)
self.scale_polygon_colors = []
self.set_scale_polygon_colors([[.00, Qt.red],
[.5, Qt.yellow],
[.6, Qt.green],
[1, Qt.transparent]])
# initialize Scale value text
# self.enable_scale_text = True
# initialize Main value text
self.enable_value_text = False
self.value_fontname = "Decorative"
self.initial_value_fontsize = 40
self.value_fontsize = self.initial_value_fontsize
self.text_radius_factor = 0.7
# En/disable scale / fill
# self.enable_barGraph = True
self.set_enable_barGraph(True)
# self.enable_filled_Polygon = True
self.set_enable_filled_Polygon(True)
self.enable_fine_scaled_marker = True
self.enable_big_scaled_marker = True
self.needle_scale_factor = 0.8
self.enable_Needle_Polygon = True
# necessary for resize
self.setMouseTracking(False)
if self.use_timer_event:
timer = QTimer(self)
timer.timeout.connect(self.update)
timer.start(5)
else:
self.update()
self.setWindowTitle("Analog Gauge")
# self.connect(self, SIGNAL("resize()"), self.rescaleMethod)
# self.resize(300 , 300)
self.rescale_method()
def rescale_method(self):
# print("slotMethod")
if self.type == 'Radial':
if self.width() <= self.height():
self.widget_diameter = self.width()
else:
self.widget_diameter = self.height()
self.change_value_needle_style([QPolygon([
QPoint(4, 30),
QPoint(-4, 30),
QPoint(-2, - self.widget_diameter / 2 * self.needle_scale_factor),
QPoint(0, - self.widget_diameter / 2 * self.needle_scale_factor - 6),
QPoint(2, - self.widget_diameter / 2 * self.needle_scale_factor)
])])
# needle = [QPolygon([
# QPoint(4, 4),
# QPoint(-4, 4),
# QPoint(-3, -120),
# QPoint(0, -126),
# QPoint(3, -120)])]
# print(str(type(needle)).split("'")[1])
#
# needle = [2]
# print(str(type(needle[0])).split("'")[1])
self.scale_fontsize = self.initial_scale_fontsize * self.widget_diameter / 400
self.value_fontsize = self.initial_value_fontsize * self.widget_diameter / 400
# print("slotMethod end")
pass
def change_value_needle_style(self, design):
self.value_needle = []
for i in design:
self.value_needle.append(i)
if not self.use_timer_event:
self.update()
def update_value(self, value, mouse_controlled=False):
# if not mouse_controlled:
# self.value = value
#
# if mouse_controlled:
# self.valueChanged.emit(int(value))
if value <= self.value_min:
self.value = self.value_min
elif value >= self.value_max:
self.value = self.value_max
else:
self.value = value
# self.paintEvent("")
self.valueChanged.emit(int(value))
# print(self.value)
if not self.use_timer_event:
self.update()
def update_angle_offset(self, offset):
self.angle_offset = offset
if not self.use_timer_event:
self.update()
def center_horizontal(self, value):
self.center_horizontal_value = value
# print("horizontal: " + str(self.center_horizontal_value))
def center_vertical(self, value):
self.center_vertical_value = value
# print("vertical: " + str(self.center_vertical_value))
###############################################################################################
# Set Methods
###############################################################################################
def set_NeedleColor(self, R=50, G=50, B=50, Transparency=255):
# Red: R = 0 - 255
# Green: G = 0 - 255
# Blue: B = 0 - 255
# Transparency = 0 - 255
self.NeedleColor = QColor(R, G, B, Transparency)
self.NeedleColorReleased = self.NeedleColor
if not self.use_timer_event:
self.update()
def set_NeedleColorDrag(self, R=50, G=50, B=50, Transparency=255):
# Red: R = 0 - 255
# Green: G = 0 - 255
# Blue: B = 0 - 255
# Transparency = 0 - 255
self.NeedleColorDrag = QColor(R, G, B, Transparency)
if not self.use_timer_event:
self.update()
def set_ScaleValueColor(self, R=50, G=50, B=50, Transparency=255):
# Red: R = 0 - 255
# Green: G = 0 - 255
# Blue: B = 0 - 255
# Transparency = 0 - 255
self.ScaleValueColor = QColor(R, G, B, Transparency)
if not self.use_timer_event:
self.update()
def set_DisplayValueColor(self, R=50, G=50, B=50, Transparency=255):
# Red: R = 0 - 255
# Green: G = 0 - 255
# Blue: B = 0 - 255
# Transparency = 0 - 255
self.DisplayValueColor = QColor(R, G, B, Transparency)
if not self.use_timer_event:
self.update()
def set_CenterPointColor(self, R=50, G=50, B=50, Transparency=255):
self.CenterPointColor = QColor(R, G, B, Transparency)
if not self.use_timer_event:
self.update()
def set_enable_Needle_Polygon(self, enable=True):
self.enable_Needle_Polygon = enable
if not self.use_timer_event:
self.update()
def set_enable_ScaleText(self, enable=True):
self.enable_scale_text = enable
if not self.use_timer_event:
self.update()
def set_enable_barGraph(self, enable=True):
self.enable_barGraph = enable
if not self.use_timer_event:
self.update()
def set_enable_value_text(self, enable=True):
self.enable_value_text = enable
if not self.use_timer_event:
self.update()
def set_enable_CenterPoint(self, enable=True):
self.enable_CenterPoint = enable
if not self.use_timer_event:
self.update()
def set_enable_filled_Polygon(self, enable=True):
self.enable_filled_Polygon = enable
if not self.use_timer_event:
self.update()
def set_enable_big_scaled_grid(self, enable=True):
self.enable_big_scaled_marker = enable
if not self.use_timer_event:
self.update()
def set_enable_fine_scaled_marker(self, enable=True):
self.enable_fine_scaled_marker = enable
if not self.use_timer_event:
self.update()
def set_scala_main_count(self, count):
if count < 1:
count = 1
self.scala_main_count = count
if not self.use_timer_event:
self.update()
def set_MinValue(self, min):
if self.value < min:
self.value = min
if min >= self.value_max:
self.value_min = self.value_max - 1
else:
self.value_min = min
if not self.use_timer_event:
self.update()
def set_MaxValue(self, max):
if self.value > max:
self.value = max
if max <= self.value_min:
self.value_max = self.value_min + 1
else:
self.value_max = max
if not self.use_timer_event:
self.update()
def set_start_scale_angle(self, value):
# Value range in DEG: 0 - 360
self.scale_angle_start_value = value
# print("startFill: " + str(self.scale_angle_start_value))
if not self.use_timer_event:
self.update()
def set_total_scale_angle_size(self, value):
self.scale_angle_size = value
# print("stopFill: " + str(self.scale_angle_size))
if not self.use_timer_event:
self.update()
def set_gauge_color_outer_radius_factor(self, value):
self.gauge_color_outer_radius_factor = float(value) / 1000
# print(self.gauge_color_outer_radius_factor)
if not self.use_timer_event:
self.update()
def set_gauge_color_inner_radius_factor(self, value):
self.gauge_color_inner_radius_factor = float(value) / 1000
# print(self.gauge_color_inner_radius_factor)
if not self.use_timer_event:
self.update()
def set_scale_polygon_colors(self, color_array):
# print(type(color_array))
if 'list' in str(type(color_array)):
self.scale_polygon_colors = color_array
elif color_array == None:
self.scale_polygon_colors = [[.0, Qt.transparent]]
else:
self.scale_polygon_colors = [[.0, Qt.transparent]]
if not self.use_timer_event:
self.update()
###############################################################################################
# Get Methods
###############################################################################################
def get_value_max(self):
return self.value_max
###############################################################################################
# Painter
###############################################################################################
def create_polygon_pie(self, outer_radius, inner_raduis, start, lenght):
polygon_pie = QPolygonF()
# start = self.scale_angle_start_value
# start = 0
# lenght = self.scale_angle_size
# lenght = 180
# inner_raduis = self.width()/4
# print(start)
n = 360 # angle steps size for full circle
# changing n value will causes drawing issues
w = 360 / n # angle per step
# create outer circle line from "start"-angle to "start + lenght"-angle
x = 0
y = 0
# todo enable/disable bar graf here
if not self.enable_barGraph:
# float_value = ((lenght / (self.value_max - self.value_min)) * (self.value - self.value_min))
lenght = int(round((lenght / (self.value_max - self.value_min)) * (self.value - self.value_min)))
# print("f: %s, l: %s" %(float_value, lenght))
pass
# mymax = 0
for i in range(lenght + 1): # add the points of polygon
t = w * i + start - self.angle_offset
x = outer_radius * math.cos(math.radians(t))
y = outer_radius * math.sin(math.radians(t))
polygon_pie.append(QPointF(x, y))
# create inner circle line from "start + lenght"-angle to "start"-angle
for i in range(lenght + 1): # add the points of polygon
# print("2 " + str(i))
t = w * (lenght - i) + start - self.angle_offset
x = inner_raduis * math.cos(math.radians(t))
y = inner_raduis * math.sin(math.radians(t))
polygon_pie.append(QPointF(x, y))
# close outer line
polygon_pie.append(QPointF(x, y))
return polygon_pie
def draw_filled_polygon(self, outline_pen_with=0):
if self.type == 'Bar':
painter = QPainter(self)
w = self.width()
h = self.height()
_grad1 = QLinearGradient(int(w * 0.5), 0, int(w * 0.5), h)
_grad1.setColorAt(0.1, Qt.red)
_grad1.setColorAt(0.5, Qt.yellow)
_grad1.setColorAt(0.6, Qt.green)
painter.setPen(Qt.NoPen)
painter.setBrush(QBrush(_grad1))
painter.drawRoundedRect(int(w / 4 * 3), 0, int(w), h, 1.8, 1.8)
if self.type == 'Radial':
if not self.scale_polygon_colors == None:
painter_filled_polygon = QPainter(self)
painter_filled_polygon.setRenderHint(QPainter.Antialiasing)
painter_filled_polygon.translate(self.width() / 2, self.height() / 2)
painter_filled_polygon.setPen(Qt.NoPen)
self.pen.setWidth(outline_pen_with)
if outline_pen_with > 0:
painter_filled_polygon.setPen(self.pen)
colored_scale_polygon = self.create_polygon_pie(
((self.widget_diameter / 2) - (self.pen.width() / 2)) * self.gauge_color_outer_radius_factor,
(((self.widget_diameter / 2) - (self.pen.width() / 2)) * self.gauge_color_inner_radius_factor),
self.scale_angle_start_value, self.scale_angle_size)
gauge_rect = QRect(QPoint(0, 0), QSize(self.widget_diameter / 2 - 1, self.widget_diameter - 1))
grad = QConicalGradient(QPointF(0, 0), - self.scale_angle_size - self.scale_angle_start_value +
self.angle_offset - 1)
# todo definition scale color as array here
for eachcolor in self.scale_polygon_colors:
grad.setColorAt(eachcolor[0], eachcolor[1])
# grad.setColorAt(.00, Qt.red)
# grad.setColorAt(.1, Qt.yellow)
# grad.setColorAt(.15, Qt.green)
# grad.setColorAt(1, Qt.transparent)
painter_filled_polygon.setBrush(grad)
# self.brush = QBrush(QColor(255, 0, 255, 255))
# painter_filled_polygon.setBrush(self.brush)
painter_filled_polygon.drawPolygon(colored_scale_polygon)
# return painter_filled_polygon
###############################################################################################
# Scale Marker
###############################################################################################
def draw_big_scaled_marker(self):
if self.type == 'Bar':
my_painter = QPainter(self)
my_painter.setRenderHint(QPainter.Antialiasing)
w = self.width()
h = self.height()
my_painter.setPen(Qt.black)
steps_size = (self.height() - 10) / self.scala_main_count
for i in range(1, (self.scala_main_count) + 2):
my_painter.drawLine(w / 2, steps_size * i, ((w / 4) * 3) * 0.97, steps_size * i)
if self.type == 'Radial':
my_painter = QPainter(self)
my_painter.setRenderHint(QPainter.Antialiasing)
my_painter.translate(self.width() / 2, self.height() / 2)
# my_painter.setPen(Qt.NoPen)
self.pen = QPen(QColor(0, 0, 0, 255))
self.pen.setWidth(2)
# # if outline_pen_with > 0:
my_painter.setPen(self.pen)
my_painter.rotate(self.scale_angle_start_value - self.angle_offset)
steps_size = (float(self.scale_angle_size) / float(self.scala_main_count))
scale_line_outer_start = self.widget_diameter / 2
scale_line_lenght = (self.widget_diameter / 2) - (self.widget_diameter / 20)
# print(stepszize)
for i in range(self.scala_main_count + 1):
my_painter.drawLine(scale_line_lenght, 0, scale_line_outer_start, 0)
my_painter.rotate(steps_size)
def create_scale_marker_values_text(self):
if self.type == 'Bar':
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing)
font = QFont(self.scale_fontname, self.scale_fontsize)
fm = QFontMetrics(font)
pen_shadow = QPen()
pen_shadow.setBrush(self.ScaleValueColor)
painter.setPen(pen_shadow)
scale_per_div = int((self.value_max - self.value_min) / self.scala_main_count)
# scale_per_div = int(self.height() / self.scala_main_count)
steps_size = (self.height() - 10) / self.scala_main_count
for i in range(1, self.scala_main_count + 2):
text = str(int(self.value_max - (self.value_min + scale_per_div * i)))
painter.setFont(font)
painter.drawText((self.width() / 4) * 0.7, steps_size * i, text)
if self.type == 'Radial':
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing)
painter.translate(self.width() / 2, self.height() / 2)
# painter.save()
font = QFont(self.scale_fontname, self.scale_fontsize)
fm = QFontMetrics(font)
pen_shadow = QPen()
pen_shadow.setBrush(self.ScaleValueColor)
painter.setPen(pen_shadow)
text_radius_factor = 0.8
text_radius = self.widget_diameter / 2 * text_radius_factor
scale_per_div = int((self.value_max - self.value_min) / self.scala_main_count)
angle_distance = (float(self.scale_angle_size) / float(self.scala_main_count))
for i in range(self.scala_main_count + 1):
text = str(int(self.value_min + scale_per_div * i))
w = fm.width(text) + 10
h = fm.height()
painter.setFont(QFont(self.scale_fontname, self.scale_fontsize))
angle = angle_distance * i + float(self.scale_angle_start_value - self.angle_offset)
x = text_radius * math.cos(math.radians(angle))
y = text_radius * math.sin(math.radians(angle))
# print(w, h, x, y, text)
text = [x - int(w / 2), y - int(h / 2), int(w), int(h), Qt.AlignCenter, text]
painter.drawText(text[0], text[1], text[2], text[3], text[4], text[5])
# painter.restore()
def create_fine_scaled_marker(self):
if self.type == 'Bar':
my_painter = QPainter(self)
my_painter.setRenderHint(QPainter.Antialiasing)
w = self.width()
h = self.height()
my_painter.setPen(Qt.black)
# steps_size = (self.value_max-self.value_min) / (self.scala_main_count * self.scala_subdiv_count)
steps_size = (self.height() - 10) / (self.scala_main_count * self.scala_subdiv_count)
for i in range(5, (self.scala_main_count * self.scala_subdiv_count) + 1):
my_painter.drawLine(w / 2 * 1.2, steps_size * i, ((w / 4) * 3) * 0.97, steps_size * i)
if self.type =='Radial':
# Description_dict = 0
my_painter = QPainter(self)
my_painter.setRenderHint(QPainter.Antialiasing)
my_painter.translate(self.width() / 2, self.height() / 2)
my_painter.setPen(Qt.black)
my_painter.rotate(self.scale_angle_start_value - self.angle_offset)
steps_size = (float(self.scale_angle_size) / float(self.scala_main_count * self.scala_subdiv_count))
scale_line_outer_start = self.widget_diameter / 2
scale_line_lenght = (self.widget_diameter / 2) - (self.widget_diameter / 40)
for i in range((self.scala_main_count * self.scala_subdiv_count) + 1):
my_painter.drawLine(scale_line_lenght, 0, scale_line_outer_start, 0)
my_painter.rotate(steps_size)
def create_values_text(self):
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing)
painter.translate(self.width() / 2, self.height() / 2)
# painter.save()
# xShadow = 3.0
# yShadow = 3.0
font = QFont(self.value_fontname, self.value_fontsize)
fm = QFontMetrics(font)
pen_shadow = QPen()
pen_shadow.setBrush(self.DisplayValueColor)
painter.setPen(pen_shadow)
text_radius = self.widget_diameter / 2 * self.text_radius_factor
text = str(int(self.value))
w = fm.width(text) + 1
h = fm.height()
painter.setFont(QFont(self.value_fontname, self.value_fontsize))
angle_end = float(self.scale_angle_start_value + self.scale_angle_size - 360)
angle = (angle_end - self.scale_angle_start_value) / 2 + self.scale_angle_start_value
x = text_radius * math.cos(math.radians(angle))
y = text_radius * math.sin(math.radians(angle))
# print(w, h, x, y, text)
text = [x - int(w / 2), y - int(h / 2), int(w), int(h), Qt.AlignCenter, text]
painter.drawText(text[0], text[1], text[2], text[3], text[4], text[5])
# painter.restore()
def draw_big_needle_center_point(self, diameter=30):
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing)
painter.translate(self.width() / 2, self.height() / 2)
painter.setPen(Qt.NoPen)
# painter.setPen(Qt.NoPen)
painter.setBrush(self.CenterPointColor)
# diameter = diameter # self.widget_diameter/6
painter.drawEllipse(int(-diameter / 2), int(-diameter / 2), int(diameter), int(diameter))
def draw_needle(self):
if self.type == 'Bar':
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing)
painter.translate(0, self.height() / 3)
painter.setPen(Qt.NoPen)
painter.setBrush(self.NeedleColor)
painter.drawConvexPolygon(self.value_needle[0])
if self.type == 'Radial':
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing)
painter.translate(self.width() / 2, self.height() / 2)
painter.setPen(Qt.NoPen)
painter.setBrush(self.NeedleColor)
painter.rotate(((self.value - self.value_offset - self.value_min) * self.scale_angle_size /
(self.value_max - self.value_min)) + 90 + self.scale_angle_start_value)
painter.drawConvexPolygon(self.value_needle[0])
###############################################################################################
# Events
###############################################################################################
def resizeEvent(self, event):
# self.resized.emit()
# return super(self.parent, self).resizeEvent(event)
# print("resized")
# print(self.width())
self.rescale_method()
# self.emit(QtCore.SIGNAL("resize()"))
# print("resizeEvent")
def paintEvent(self, event):
# Main Drawing Event:
# Will be executed on every change
# colored pie area
if self.enable_filled_Polygon:
self.draw_filled_polygon()
# draw scale marker lines
if self.enable_fine_scaled_marker:
self.create_fine_scaled_marker()
if self.enable_big_scaled_marker:
self.draw_big_scaled_marker()
# draw scale marker value text
if self.enable_scale_text:
self.create_scale_marker_values_text()
# Display Value
if self.enable_value_text:
self.create_values_text()
# draw needle 1
if self.enable_Needle_Polygon:
self.draw_needle()
# Draw Center Point
if self.enable_CenterPoint:
self.draw_big_needle_center_point(diameter=(self.widget_diameter / 6))
###############################################################################################
# MouseEvents
###############################################################################################
def setMouseTracking(self, flag):
def recursive_set(parent):
for child in parent.findChildren(QObject):
try:
child.setMouseTracking(flag)
except:
pass
recursive_set(child)
QWidget.setMouseTracking(self, flag)
recursive_set(self)
def mouseReleaseEvent(self, QMouseEvent):
# print("released")
self.NeedleColor = self.NeedleColorReleased
if not self.use_timer_event:
self.update()
pass
def mouseMoveEvent(self, event):
x, y = event.x() - (self.width() / 2), event.y() - (self.height() / 2)
if not x == 0:
angle = math.atan2(y, x) / math.pi * 180
value = (float(math.fmod(angle - self.scale_angle_start_value + 720, 360)) / \
(float(self.scale_angle_size) / float(self.value_max - self.value_min))) + self.value_min
temp = value
fmod = float(math.fmod(angle - self.scale_angle_start_value + 720, 360))
state = 0
if (self.value - (self.value_max - self.value_min) * self.value_needle_snapzone) <= \
value <= \
(self.value + (self.value_max - self.value_min) * self.value_needle_snapzone):
self.NeedleColor = self.NeedleColorDrag
state = 9
# if value >= self.value_max and self.last_value < (self.value_max - self.value_min) / 2:
if value >= self.value_max and self.last_value < (self.value_max - self.value_min) / 2:
state = 1
value = self.value_max
self.last_value = self.value_min
self.valueChanged.emit(int(value))
elif value >= self.value_max >= self.last_value:
state = 2
value = self.value_max
self.last_value = self.value_max
self.valueChanged.emit(int(value))
else:
state = 3
self.last_value = value
self.valueChanged.emit(int(value))