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Only redraw status icons if necessary

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XANTRONIX Development 2024-01-05 00:00:06 -05:00
parent 430758ffb9
commit 0dbb119bc6
1 changed files with 40 additions and 16 deletions
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56
py/hexagram/status.py
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@ -99,7 +99,7 @@ class StatusIcon():
cr.fill() cr.fill()
class StatusIconBox(Gauge): class StatusIconBox(Gauge):
__slots__ = 'x', 'y', 'width', 'height', 'icons', 'value', __slots__ = 'x', 'y', 'width', 'height', 'value', 'surface', 'icons', '_redraw'
__icons__ = ( __icons__ = (
(VehicleStatus.BATTERY_FAULT, 'battery', '#f00', '#rect5, #rect6 {fill: %(s)s} #rect4, path {stroke: %(s)s}'), (VehicleStatus.BATTERY_FAULT, 'battery', '#f00', '#rect5, #rect6 {fill: %(s)s} #rect4, path {stroke: %(s)s}'),
@ -128,11 +128,14 @@ class StatusIconBox(Gauge):
ICON_HEIGHT = 48 ICON_HEIGHT = 48
def __init__(self, x: float, y: float, width: float, height: float): def __init__(self, x: float, y: float, width: float, height: float):
self.x = x self.x = x
self.y = y self.y = y
self.width = width self.width = width
self.height = height self.height = height
self.value = VehicleStatus.OK.value self.value = VehicleStatus.OK.value
self.surface = cairo.ImageSurface(cairo.FORMAT_ARGB32,int(width), int(height))
self._redraw = False
self.icons: dict[int, StatusIcon] = dict() self.icons: dict[int, StatusIcon] = dict()
for item in self.__icons__: for item in self.__icons__:
@ -144,19 +147,19 @@ class StatusIconBox(Gauge):
self.ICON_HEIGHT, self.ICON_HEIGHT,
color, style) color, style)
def reset(self): def __del__(self):
self.value = VehicleStatus.OK.value self.surface.finish()
def set_status(self, status: VehicleStatus):
self.value |= status.value
def clear_status(self, status: VehicleStatus):
self.value &= ~status.value
def draw_bg(self, cr: cairo.Context): def draw_bg(self, cr: cairo.Context):
pass pass
def draw_fg(self, cr: cairo.Context): def _update_surface(self):
cr = cairo.Context(self.surface)
cr.set_source_rgba(0, 0, 0, 0)
cr.set_operator(cairo.OPERATOR_SOURCE)
cr.rectangle(0, 0, self.width, self.height)
cr.fill()
x, y = 0, self.height - self.ICON_HEIGHT x, y = 0, self.height - self.ICON_HEIGHT
for status_value in self.icons: for status_value in self.icons:
@ -164,10 +167,31 @@ class StatusIconBox(Gauge):
if self.value & status_value: if self.value & status_value:
if icon is not None: if icon is not None:
icon.draw(cr, self.x + x, self.y + y) icon.draw(cr, x, y)
x += self.ICON_WIDTH x += self.ICON_WIDTH
if x >= self.width: if x >= self.width:
x = 0 x = 0
y -= self.ICON_HEIGHT y -= self.ICON_HEIGHT
def draw_fg(self, cr: cairo.Context):
if self._redraw:
self._update_surface()
self._redraw = False
cr.set_source_surface(self.surface, self.x, self.y)
cr.rectangle(self.x, self.y, self.width, self.height)
cr.fill()
def reset(self):
self.value = VehicleStatus.OK.value
self._redraw = True
def set_status(self, status: VehicleStatus):
self.value |= status.value
self._redraw = True
def clear_status(self, status: VehicleStatus):
self.value &= ~status.value
self._redraw = True