127 lines
3.8 KiB
Python
127 lines
3.8 KiB
Python
from typing import Optional, List
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from dataclasses import dataclass, field
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import gphoto2 as gp
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import cv2
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import numpy as np
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from .base_camera import BaseCamera
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camera_widget_types = {
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gp.GP_WIDGET_WINDOW: "GP_WIDGET_WINDOW", # type: ignore
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gp.GP_WIDGET_SECTION: "GP_WIDGET_SECTION", # type: ignore
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gp.GP_WIDGET_TEXT: "GP_WIDGET_TEXT", # type: ignore
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gp.GP_WIDGET_RANGE: "GP_WIDGET_RANGE", # type: ignore
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gp.GP_WIDGET_TOGGLE: "GP_WIDGET_TOGGLE", # type: ignore
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gp.GP_WIDGET_RADIO: "GP_WIDGET_RADIO", # type: ignore
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gp.GP_WIDGET_MENU: "GP_WIDGET_MENU", # type: ignore
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gp.GP_WIDGET_BUTTON: "GP_WIDGET_BUTTON", # type: ignore
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gp.GP_WIDGET_DATE: "GP_WIDGET_DATE", # type: ignore
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}
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@dataclass
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class CameraWidget:
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id: int
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name: str
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label: str
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type: str
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widget: object
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value: Optional[str] = None
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choices: List[str] = field(default_factory=list)
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def __str__(self) -> str:
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return f"[{self.id} - {self.type}] '{self.name}' {self.label}\n\tvalue = {self.value} | choices = {self.choices}"
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class GPhotoCamera(BaseCamera):
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def __init__(self) -> None:
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super().__init__()
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self.camera = None
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self.widgets: List[CameraWidget] = []
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def connect(self) -> bool:
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self.error_msg = None
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try:
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self.camera = gp.Camera() # type: ignore
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self.camera.init()
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self.read_config()
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widget = self.get_setting_by_name("iso")
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self.set_setting_by_id(widget.id, "100")
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return True
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except Exception as e:
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self.error_msg = f"[GPHOTO2] {e}"
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self.camera = None
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return False
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def disconnect(self) -> None:
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if self.camera:
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self.camera.exit()
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self.camera = None
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self.widgets.clear()
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def get_frame(self):
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self.error_msg = None
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if self.camera is None:
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self.error_msg = "[GPHOTO2] Camera is not initialized."
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return (False, None)
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try:
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file = self.camera.capture_preview() # type: ignore
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data = file.get_data_and_size()
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frame = np.frombuffer(data, dtype=np.uint8)
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frame = cv2.imdecode(frame, cv2.IMREAD_COLOR)
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return (True, frame)
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except Exception as e:
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self.error_msg = f"[GPHOTO2] {e}"
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return (False, None)
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def get_setting_by_id(self, id: int) -> CameraWidget:
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return next(w for w in self.widgets if w.id == id)
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def get_setting_by_name(self, name: str) -> CameraWidget:
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return next(w for w in self.widgets if w.name == name)
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def set_setting_by_id(self, id: int, value: str):
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widget = self.get_setting_by_id(id)
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if value in widget.choices:
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widget.widget.set_value(value) # type: ignore
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self.camera.set_single_config(widget.name, widget.widget) # type: ignore
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def read_config(self):
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if not self.camera:
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return
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self.widgets.clear()
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def parse_widget(widget):
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temp_widget = CameraWidget(
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id=widget.get_id(),
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name=widget.get_name(),
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label=widget.get_label(),
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type=camera_widget_types[widget.get_type()],
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widget=widget
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)
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try:
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temp_widget.value = widget.get_value()
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except gp.GPhoto2Error:
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pass
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try:
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temp_widget.choices = list(widget.get_choices())
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except gp.GPhoto2Error:
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pass
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self.widgets.append(temp_widget)
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for i in range(widget.count_children()):
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parse_widget(widget.get_child(i))
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config = self.camera.get_config()
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parse_widget(config)
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for wid in self.widgets:
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print(wid)
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