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Ugly hack but I have a fuel gauge???

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XANTRONIX Development 2024-01-01 01:47:56 -05:00
parent 7f468c715c
commit cec20b55bd
2 changed files with 70 additions and 1 deletions
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8
py/hexagram/cluster.py
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@ -8,6 +8,7 @@ from hexagram.gauge import Gauge
from hexagram.dial import Dial
from hexagram.speedo import Speedo
from hexagram.tacho import Tacho
from hexagram.fuel import FuelGauge
class ShiftIndicator(Gauge):
__slots__ = 'x', 'y', 'rpm_redline', 'rpm_max',
@ -64,7 +65,7 @@ class Cluster():
SHIFT_INDICATOR_X = 392
SHIFT_INDICATOR_Y = 24
__slots__ = 'gauges', 'speedo', 'tacho',
__slots__ = 'gauges', 'speedo', 'tacho', 'fuel',
def __init__(self, rpm_redline: float, rpm_max: float):
self.gauges: List[Gauge] = list()
@ -79,7 +80,12 @@ class Cluster():
self.HEIGHT / 2,
8000)
self.fuel = FuelGauge(self.HEIGHT / 2,
self.HEIGHT / 2,
self.HEIGHT / 2)
self.gauges.append(self.speedo)
self.gauges.append(self.fuel)
self.gauges.append(self.tacho)
self.gauges.append(ShiftIndicator(self.SHIFT_INDICATOR_X,

63
py/hexagram/fuel.py Normal file
View file

@ -0,0 +1,63 @@
import enum
import math
import cairo
from hexagram.dial import Dial
class FuelGauge(Dial):
MIN_ANGLE = 144.0 * (math.pi / 180.0)
MAX_ANGLE = 216.0 * (math.pi / 180.0)
MAX_VALUE = 15
FONT_FACE = "Muli"
def __init__(self, x: float, y: float, radius: float):
super().__init__(x, y, radius, self.MIN_ANGLE, self.MAX_ANGLE, self.MAX_VALUE)
def draw_value(self, cr: cairo.Context, radius: float, value: float, text: str, x_offset: float):
scale = (self.max_value - value) / self.max_value
angle = self.min_angle + ((self.max_angle - self.min_angle) * scale) - self.ANGLE_OFFSET
cr.move_to(self.x + radius * self.radius * math.cos(angle) + x_offset,
self.y + radius * self.radius * math.sin(angle))
cr.show_text(text)
cr.stroke()
def draw_mark(self, cr: cairo.Context, min_radius: float, max_radius: float, value: float):
angle = self.min_angle + \
((self.max_angle - self.min_angle) * (value / self.max_value)) - self.ANGLE_OFFSET
cr.move_to(self.x + (min_radius * self.radius) * math.cos(angle),
self.y + (min_radius * self.radius) * math.sin(angle))
cr.line_to(self.x + (max_radius * self.radius) * math.cos(angle),
self.y + (max_radius * self.radius) * math.sin(angle))
cr.stroke()
def draw_bg(self, cr: cairo.Context):
cr.select_font_face(self.FONT_FACE,
cairo.FontSlant.NORMAL,
cairo.FontWeight.BOLD)
cr.set_font_size(self.radius * 0.1)
cr.set_source_rgb(1, 0, 0)
self.draw_value(cr, 0.75, 0, "0", -10)
cr.set_source_rgb(1, 1, 1)
self.draw_value(cr, 0.75, 15, "1", 0)
cr.set_line_width(6.0)
for level in range(0, self.MAX_VALUE+1):
if level < 4:
min_radius = 0.84
cr.set_source_rgb(1, 0, 0)
else:
min_radius = 0.82
cr.set_source_rgb(1, 1, 1)
self.draw_mark(cr, min_radius, 0.87, self.max_value - level)