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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.dial import Dial
from hexagram.speedo import Speedo from hexagram.speedo import Speedo
from hexagram.tacho import Tacho from hexagram.tacho import Tacho
from hexagram.fuel import FuelGauge
class ShiftIndicator(Gauge): class ShiftIndicator(Gauge):
__slots__ = 'x', 'y', 'rpm_redline', 'rpm_max', __slots__ = 'x', 'y', 'rpm_redline', 'rpm_max',
@ -64,7 +65,7 @@ class Cluster():
SHIFT_INDICATOR_X = 392 SHIFT_INDICATOR_X = 392
SHIFT_INDICATOR_Y = 24 SHIFT_INDICATOR_Y = 24
__slots__ = 'gauges', 'speedo', 'tacho', __slots__ = 'gauges', 'speedo', 'tacho', 'fuel',
def __init__(self, rpm_redline: float, rpm_max: float): def __init__(self, rpm_redline: float, rpm_max: float):
self.gauges: List[Gauge] = list() self.gauges: List[Gauge] = list()
@ -79,7 +80,12 @@ class Cluster():
self.HEIGHT / 2, self.HEIGHT / 2,
8000) 8000)
self.fuel = FuelGauge(self.HEIGHT / 2,
self.HEIGHT / 2,
self.HEIGHT / 2)
self.gauges.append(self.speedo) self.gauges.append(self.speedo)
self.gauges.append(self.fuel)
self.gauges.append(self.tacho) self.gauges.append(self.tacho)
self.gauges.append(ShiftIndicator(self.SHIFT_INDICATOR_X, 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)