1 Commits

Author SHA1 Message Date
6d616fd15e new camera handling concept 2025-09-18 20:14:12 +02:00
11 changed files with 343 additions and 376 deletions

View File

@@ -7,8 +7,6 @@ from ui.widgets.thumbnail_list_widget import ThumbnailListWidget
from ui.widgets.split_view_widget import SplitView
from .camera_controller import CameraController
from core.camera.gphoto_camera import GPhotoCamera
from core.camera.camera_manager import CameraManager
class MainController:
def __init__(self, view):
@@ -17,11 +15,7 @@ class MainController:
self.media_repo = MediaRepository(self.db)
self.media_repo.sync_media()
camera = GPhotoCamera()
self.manager = CameraManager(camera)
# self.camera_controller = CameraController()
self.camera_controller = CameraController()
self.view = view
self.color_list: ColorListWidget = view.color_list_widget
@@ -31,20 +25,13 @@ class MainController:
self.photo_button: QPushButton = view.photo_button
self.photo_button.clicked.connect(self.take_photo)
self.record_button: QPushButton = view.record_button
# self.record_button.clicked.connect(self.fun_test)
self.color_list.colorSelected.connect(self.on_color_selected)
self.color_list.editColor.connect(self.on_edit_color)
self.thumbnail_list.selectedThumbnail.connect(self.on_thumbnail_selected)
# self.camera_controller.errorOccurred.connect(self.split_view.widget_start.set_info_text)
self.manager.error_occurred.connect(self.split_view.widget_start.set_info_text)
# self.camera_controller.frameReady.connect(self.split_view.set_live_image)
self.manager.frame_ready.connect(self.split_view.set_live_image)
# self.split_view.widget_start.camera_start_btn.clicked.connect(self.camera_controller.start)
self.split_view.widget_start.camera_start_btn.clicked.connect(self.start_liveview)
self.camera_controller.errorOccurred.connect(self.split_view.widget_start.set_info_text)
self.camera_controller.frameReady.connect(self.split_view.set_live_image)
self.split_view.widget_start.camera_start_btn.clicked.connect(self.camera_controller.start)
def start_camera(self):
pass
@@ -84,10 +71,3 @@ class MainController:
def take_photo(self):
print("Robienie zdjęcia...")
self.split_view.toglle_live_view()
def start_liveview(self):
self.manager.start_camera()
# self.manager.start_stream()
def shutdown(self):
self.manager.stop()

18
core/base.py Normal file
View File

@@ -0,0 +1,18 @@
from
class BaseImageSource(QObject):
frameReady = Signal(QPixmap)
errorOccurred = Signal(str)
def start(self): ...
def stop(self): ...
class BaseControlSource(QObject):
errorOccurred = Signal(str)
parameterChanged = Signal(str, object)
def set_parameter(self, name: str, value): ...
def get_parameter(self, name: str): ...
def list_parameters(self) -> dict: ...

View File

@@ -1,37 +1,49 @@
from abc import ABC, abstractmethod
class BaseCamera(ABC):
def __init__(self) -> None:
self.error_msg = None
"""Interfejs wspólny dla wszystkich backendów kamer."""
@abstractmethod
def connect(self) -> bool:
"""Nawiązuje połączenie z urządzeniem."""
raise NotImplementedError
@abstractmethod
def disconnect(self) -> None:
def disconnect(self):
"""Zamyka połączenie z urządzeniem."""
raise NotImplementedError
@abstractmethod
def start_stream(self):
"""Rozpocznij strumień wideo."""
raise NotImplementedError
@abstractmethod
def stop_stream(self):
"""Zatrzymaj strumień wideo."""
raise NotImplementedError
@abstractmethod
def get_frame(self):
"""Pobierz jedną klatkę liveview."""
raise NotImplementedError
@abstractmethod
def get_config_by_id(self, id: int) -> dict:
def capture_photo(self):
"""Zrób zdjęcie."""
raise NotImplementedError
@abstractmethod
def get_config_by_name(self, name: str) -> dict:
def record_video(self):
"""Nagraj film."""
raise NotImplementedError
@abstractmethod
def get_available_settings(self) -> dict:
"""Zwraca słownik dostępnych ustawień i ich możliwych wartości."""
raise NotImplementedError
@abstractmethod
def set_config_by_id(self, id: int, value) -> None:
raise NotImplementedError
@abstractmethod
def set_config_by_name(self, name: str, value) -> None:
raise NotImplementedError
def get_error_msg(self):
return str(self.error_msg)
def set_setting(self, name: str, value) -> bool:
"""Ustawia wybraną wartość dla danego ustawienia."""
raise NotImplementedError

View File

@@ -1,88 +0,0 @@
from PySide6.QtCore import QObject, QThread, QTimer, Signal, Slot
from PySide6.QtGui import QImage, QPixmap
import cv2
from .base_camera import BaseCamera
class CameraManager(QThread):
frame_ready = Signal(QPixmap)
photo_ready = Signal(QPixmap)
error_occurred = Signal(str)
def __init__(self, camera: BaseCamera, fps: int = 15, parent: QObject | None = None) -> None:
super().__init__(parent)
self.camera = camera
self.fps = fps
self.timer = None
self.is_streaming = False
self.is_connected = False
self.timer = QTimer()
self.timer.setInterval(int(1000 / self.fps))
self.timer.timeout.connect(self._update_frame)
self.start()
def run(self) -> None:
# self.timer = QTimer()
# self.timer.setInterval(int(1000 / self.fps))
# self.timer.timeout.connect(self._update_frame)
self.exec()
def start_camera(self) -> None:
if self.is_connected:
return
if self.camera.connect():
self.is_connected = True
else:
self.is_connected = False
self.error_occurred.emit(self.camera.get_error_msg())
def stop_camera(self) -> None:
self.is_streaming = False
self.is_connected = False
if self.timer:
self.timer.stop()
self.camera.disconnect()
def start_stream(self):
if not self.is_connected:
return
if self.is_streaming:
return
if self.timer:
self.is_streaming = True
self.timer.start()
def stop_stream(self) -> None:
if self.is_streaming:
self.is_streaming = False
if self.timer:
self.timer.stop()
def _update_frame(self) -> None:
if not self.is_streaming or not self.is_connected:
return
ret, frame = self.camera.get_frame()
if not ret:
self.error_occurred.emit(self.camera.get_error_msg())
return
if frame is not None:
rgb_image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
h, w, ch = rgb_image.shape
qimg = QImage(rgb_image.data, w, h, ch * w, QImage.Format.Format_RGB888)
pixmap = QPixmap.fromImage(qimg)
self.frame_ready.emit(pixmap)
def stop(self):
self.stop_camera()
self.quit()
self.wait()

View File

@@ -1,122 +1,35 @@
from typing import Optional, List
from dataclasses import dataclass, field
import gphoto2 as gp
import cv2
import numpy as np
from .base_camera import BaseCamera
camera_widget_types = {
gp.GP_WIDGET_WINDOW: "GP_WIDGET_WINDOW", # type: ignore
gp.GP_WIDGET_SECTION: "GP_WIDGET_SECTION", # type: ignore
gp.GP_WIDGET_TEXT: "GP_WIDGET_TEXT", # type: ignore
gp.GP_WIDGET_RANGE: "GP_WIDGET_RANGE", # type: ignore
gp.GP_WIDGET_TOGGLE: "GP_WIDGET_TOGGLE", # type: ignore
gp.GP_WIDGET_RADIO: "GP_WIDGET_RADIO", # type: ignore
gp.GP_WIDGET_MENU: "GP_WIDGET_MENU", # type: ignore
gp.GP_WIDGET_BUTTON: "GP_WIDGET_BUTTON", # type: ignore
gp.GP_WIDGET_DATE: "GP_WIDGET_DATE", # type: ignore
}
class GPhotoCamera(BaseCamera):
class GPhotoBackend(BaseCamera):
def __init__(self) -> None:
super().__init__()
self.camera = None
self.configs: List[dict] = []
self.context = None
self._is_streaming = False
def connect(self) -> bool:
self.error_msg = None
try:
self.camera = gp.Camera() # type: ignore
self.camera.init()
config = self.camera.get_config()
self.read_config(config)
return True
except Exception as e:
self.error_msg = f"[GPHOTO2] {e}"
self.camera = None
return False
def disconnect(self) -> None:
if self.camera:
self.camera.exit()
self.camera = None
self.configs.clear()
pass
def disconnect(self):
pass
def start_stream(self):
pass
def stop_stream(self):
pass
def get_frame(self):
self.error_msg = None
pass
if self.camera is None:
self.error_msg = "[GPHOTO2] Camera is not initialized."
return (False, None)
def capture_photo(self):
pass
try:
file = self.camera.capture_preview() # type: ignore
data = file.get_data_and_size()
frame = np.frombuffer(data, dtype=np.uint8)
frame = cv2.imdecode(frame, cv2.IMREAD_COLOR)
def record_video(self):
pass
def get_available_settings(self) -> dict:
pass
return (True, frame)
except Exception as e:
self.error_msg = f"[GPHOTO2] {e}"
return (False, None)
def get_config_by_id(self, id: int):
return next(w for w in self.configs if w['id'] == id)
def get_config_by_name(self, name: str):
return next(w for w in self.configs if w['name'] == name)
def set_config(self, config, value):
if value not in config['choices']:
return
config['config'].set_value(value) # type: ignore
if self._save_config(config):
config['value'] = value
def set_config_by_id(self, id: int, value: str):
config = self.get_config_by_id(id)
self.set_config(config, value)
def set_config_by_name(self, name: str, value: str):
config = self.get_config_by_name(name)
self.set_config(config, value)
def _save_config(self, config):
if not self.camera:
return False
self.camera.set_single.config(config['name'], config['widget'])
return True
def parse_config(self, config):
new_config = {
"id": config.get_id(),
"name": config.get_name(),
"label": config.get_label(),
"type": camera_widget_types[config.get_type()],
"widget": config
}
try:
new_config["value"] = config.get_value()
except gp.GPhoto2Error:
pass
try:
new_config["choices"] = list(config.get_choices())
except gp.GPhoto2Error:
pass
return new_config
def read_config(self, config):
self.configs.append(self.parse_config(config))
for i in range(config.count_children()):
child = config.get_child(i)
self.read_config(child)
def set_setting(self, name: str, value) -> bool:
pass

View File

@@ -1,98 +1,104 @@
import cv2
from typing import List
# camera/opencv_camera.py
import cv2
import time
from PySide6.QtGui import QImage, QPixmap
from .base_camera import BaseCamera
class OpenCVCamera(BaseCamera):
"""Implementacja kamery przy użyciu OpenCV."""
class CvCamera(BaseCamera):
"""Kamera oparta na cv2.VideoCapture"""
config_map = {
0: {"name": "frame_width", "cv_prop": cv2.CAP_PROP_FRAME_WIDTH, "default": 640},
1: {"name": "frame_height", "cv_prop": cv2.CAP_PROP_FRAME_HEIGHT, "default": 480},
2: {"name": "fps", "cv_prop": cv2.CAP_PROP_FPS, "default": 30},
3: {"name": "brightness", "cv_prop": cv2.CAP_PROP_BRIGHTNESS, "default": 0.5},
4: {"name": "contrast", "cv_prop": cv2.CAP_PROP_CONTRAST, "default": 0.5},
5: {"name": "saturation", "cv_prop": cv2.CAP_PROP_SATURATION, "default": 0.5},
}
def __init__(self, device_index: int = 0) -> None:
super().__init__()
self.device_index = device_index
self.cap = None
self.configs: List[dict] = []
def __init__(self, camera_index=0):
self.camera_index = camera_index
self.video_capture = None
self._is_streaming = False
# self._live_view_thread = None # Wewnętrzny wątek do pętli live view
def connect(self) -> bool:
self.error_msg = None
try:
self.cap = cv2.VideoCapture(self.device_index)
if not self.cap.isOpened():
self.error_msg = f"[CV2] Could not open camera {self.device_index}"
return False
self.configs.clear()
for id, conf in self.config_map.items():
value = self.cap.get(conf["cv_prop"])
self.configs.append(
{
"id": id,
"name": conf["name"],
"label": conf["name"].capitalize(),
"value": value,
"choices": None, # brak predefiniowanych wyborów
"cv_prop": conf["cv_prop"],
}
)
return True
except Exception as e:
self.error_msg = f"[CV2] {e}"
self.cap = None
self.video_capture = cv2.VideoCapture(self.camera_index)
if not self.video_capture.isOpened():
# self.error_occurred.emit(f"Nie można otworzyć kamery OpenCV o indeksie {self.camera_index}")
self.video_capture = None
return False
# print("Kamera OpenCV połączona.")
return True
def disconnect(self):
self.stop_stream()
if self.video_capture:
self.video_capture.release()
self.video_capture = None
# print("Kamera OpenCV rozłączona.")
# self.camera_disconnected.emit()
def start_stream(self):
if not self.video_capture or not self.video_capture.isOpened():
# self.error_occurred.emit("Próba uruchomienia podglądu na niepodłączonej kamerze.")
return
if self._is_streaming:
return # Już działa
self._is_streaming = True
# Uruchamiamy pętlę w metodzie, ponieważ cała klasa działa już w dedykowanym wątku
# self._live_view_loop()
def stop_stream(self):
self._is_streaming = False
def disconnect(self) -> None:
if self.cap:
self.cap.release()
self.cap = None
self.configs.clear()
def get_frame(self):
self.error_msg = None
if self.cap is None or not self.cap.isOpened():
self.error_msg = "[CV2] Camera is not initialized."
return (False, None)
if not self.video_capture:
return None
ret, frame = self.video_capture.read()
if not ret:
self.stop_stream()
return None
rgb_image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
h, w, ch = rgb_image.shape
bytes_per_line = ch * w
qt_image = QImage(rgb_image.data, w, h, bytes_per_line, QImage.Format.Format_RGB888)
try:
ret, frame = self.cap.read()
if not ret:
self.error_msg = "[CV2] Failed to read frame."
return (False, None)
return (True, frame)
except Exception as e:
self.error_msg = f"[CV2] {e}"
return (False, None)
return qt_image
def get_config_by_id(self, id: int):
return next(w for w in self.configs if w["id"] == id)
def get_config_by_name(self, name: str):
return next(w for w in self.configs if w["name"] == name)
def set_config(self, config, value: float):
if not self.cap:
def capture_photo(self, save_path: str):
if not self.video_capture or not self.video_capture.isOpened():
# self.error_occurred.emit("Nie można zrobić zdjęcia, kamera nie jest podłączona.")
return
try:
self.cap.set(config["cv_prop"], value)
config["value"] = self.cap.get(config["cv_prop"]) # sprawdz co ustawiło
except Exception as e:
self.error_msg = f"[CV2] {e}"
def set_config_by_id(self, id: int, value: float):
config = self.get_config_by_id(id)
self.set_config(config, value)
ret, frame = self.video_capture.read()
if ret:
try:
cv2.imwrite(save_path, frame)
print(f"Zdjęcie zapisane w: {save_path}")
# self.photo_captured.emit(save_path)
except Exception as e:
# self.error_occurred.emit(f"Błąd zapisu zdjęcia: {e}")
else:
# self.error_occurred.emit("Nie udało się przechwycić klatki do zdjęcia.")
def get_available_settings(self) -> dict:
# To jest uproszczona implementacja
if not self.video_capture:
return {}
return {
"brightness": self.video_capture.get(cv2.CAP_PROP_BRIGHTNESS),
"contrast": self.video_capture.get(cv2.CAP_PROP_CONTRAST),
"saturation": self.video_capture.get(cv2.CAP_PROP_SATURATION),
}
def set_config_by_name(self, name: str, value: float):
config = self.get_config_by_name(name)
self.set_config(config, value)
def set_setting(self, name: str, value) -> bool:
if not self.video_capture:
return False
prop_map = {
"brightness": cv2.CAP_PROP_BRIGHTNESS,
"contrast": cv2.CAP_PROP_CONTRAST,
"saturation": cv2.CAP_PROP_SATURATION,
}
if name in prop_map:
return self.video_capture.set(prop_map[name], value)
return False

80
core/gphoto_adapter.py Normal file
View File

@@ -0,0 +1,80 @@
from PySide6.QtCore import QObject, QThread, Signal, QTimer
from PySide6.QtGui import QImage, QPixmap
import cv2
import numpy as np
from .base import BaseControlSource, BaseImageSource
# try:
# import gphoto2 as gp
# except:
from . import mock_gphoto as gp
class GPhotoImageSource(BaseImageSource):
def __init__(self, camera: gp.Camera, fps=10, parent=None):
super().__init__(parent)
self.camera = camera
self.fps = fps
self.timer = None
def start(self):
self.timer = QTimer()
self.timer.timeout.connect(self._grab_frame)
self.timer.start(int(1000 / self.fps))
def _grab_frame(self):
try:
file = self.camera.capture_preview()
data = file.get_data_and_size()
frame = np.frombuffer(data, dtype=np.uint8)
frame = cv2.imdecode(frame, cv2.IMREAD_COLOR)
if frame is None:
return
rgb_image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
h, w, ch = rgb_image.shape
qimg = QImage(rgb_image.data, w, h, ch * w, QImage.Format.Format_RGB888)
pixmap = QPixmap.fromImage(qimg)
self.frameReady.emit(pixmap)
except gp.GPhoto2Error as e:
self.errorOccurred.emit(f"GPhoto2 error: {e}")
def stop(self):
if self.timer:
self.timer.stop()
class GPhotoControlSource(BaseControlSource):
def __init__(self, camera: gp.Camera, parent=None):
super().__init__(parent)
self.camera = camera
def set_parameter(self, name, value):
try:
config = self.camera.get_config()
child = config.get_child_by_name(name)
child.set_value(value)
self.camera.set_config(config)
self.parameterChanged.emit(name, value)
except gp.GPhoto2Error as e:
self.errorOccurred.emit(str(e))
def get_parameter(self, name):
try:
config = self.camera.get_config()
child = config.get_child_by_name(name)
return child.get_value()
except gp.GPhoto2Error as e:
self.errorOccurred.emit(str(e))
return None
def list_parameters(self):
params = {}
try:
config = self.camera.get_config()
for child in config.get_children():
params[child.get_name()] = child.get_value()
except gp.GPhoto2Error as e:
self.errorOccurred.emit(str(e))
return params

64
core/mock_gphoto.py Normal file
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@@ -0,0 +1,64 @@
import cv2
import numpy as np
class GPhoto2Error(Exception):
pass
class CameraFileMock:
"""Mock obiektu zwracanego przez gphoto2.Camera.capture_preview()"""
def __init__(self, frame: np.ndarray):
# Kodowanie do JPEG, żeby symulować prawdziwe dane z kamery
success, buf = cv2.imencode(".jpg", frame)
if not success:
raise GPhoto2Error("Nie udało się zakodować ramki testowej.")
self._data = buf.tobytes()
def get_data_and_size(self):
return self._data
return self._data, len(self._data)
class Camera:
def __init__(self):
self._frame_counter = 0
self._running = False
def init(self):
self._running = True
print("[my_gphoto] Kamera MOCK zainicjalizowana")
def exit(self):
self._running = False
print("[my_gphoto] Kamera MOCK wyłączona")
def capture_preview(self):
if not self._running:
raise GPhoto2Error("Kamera MOCK nie jest uruchomiona")
# przykład 1: wczytaj stały obrazek z pliku
# frame = cv2.imread("test_frame.jpg")
# if frame is None:
# raise GPhoto2Error("Nie znaleziono test_frame.jpg")
# przykład 2: wygeneruj kolorową planszę
h, w = 480, 640
color = (self._frame_counter % 255, 100, 200)
frame = np.full((h, w, 3), color, dtype=np.uint8)
# dodanie napisu
text = "OBRAZ TESTOWY"
font = cv2.FONT_HERSHEY_SIMPLEX
scale = 1.5
thickness = 3
color_text = (255, 255, 255)
(text_w, text_h), _ = cv2.getTextSize(text, font, scale, thickness)
x = (w - text_w) // 2
y = (h + text_h) // 2
cv2.putText(frame, text, (x, y), font, scale, color_text, thickness, cv2.LINE_AA)
self._frame_counter += 1
return CameraFileMock(frame)

34
core/opencv_adapter.py Normal file
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@@ -0,0 +1,34 @@
class OpenCVControlSource(BaseControlSource):
def __init__(self, cap: cv2.VideoCapture, parent=None):
super().__init__(parent)
self.cap = cap
def set_parameter(self, name, value):
prop_id = getattr(cv2, name, None)
if prop_id is None:
self.errorOccurred.emit(f"Nieznany parametr {name}")
return
self.cap.set(prop_id, value)
self.parameterChanged.emit(name, value)
def get_parameter(self, name):
prop_id = getattr(cv2, name, None)
if prop_id is None:
self.errorOccurred.emit(f"Nieznany parametr {name}")
return None
return self.cap.get(prop_id)
def list_parameters(self):
return {
"CAP_PROP_BRIGHTNESS": self.cap.get(cv2.CAP_PROP_BRIGHTNESS),
"CAP_PROP_CONTRAST": self.cap.get(cv2.CAP_PROP_CONTRAST),
"CAP_PROP_SATURATION": self.cap.get(cv2.CAP_PROP_SATURATION),
"CAP_PROP_GAIN": self.cap.get(cv2.CAP_PROP_GAIN),
"CAP_PROP_EXPOSURE": self.cap.get(cv2.CAP_PROP_EXPOSURE),
}

View File

@@ -1,7 +1,6 @@
import sys
from PySide6.QtWidgets import QApplication
from ui.main_palette import set_dark_theme
from ui.main_window import MainWindow
from controllers.main_controller import MainController
@@ -9,13 +8,10 @@ from controllers.main_controller import MainController
def main():
app = QApplication(sys.argv)
set_dark_theme(app)
# app.setStyle("Fusion")
app.setStyle("Fusion")
window = MainWindow()
controller = MainController(window)
controller.load_colors()
app.aboutToQuit.connect(controller.shutdown)
window.show()
sys.exit(app.exec())

View File

@@ -1,48 +0,0 @@
import sys
from PySide6.QtWidgets import QApplication
from PySide6.QtGui import QPalette, QColor
from PySide6.QtCore import Qt
def set_dark_theme(app: QApplication):
"""Definiuje i stosuje ciemną paletę kolorów do aplikacji."""
# 1. Upewnij się, że styl jest ustawiony na "Fusion"
app.setStyle('Fusion')
# 2. Definicja kolorów dla ciemnego motywu
palette = QPalette()
# Kolory tła
DARK_GRAY = QColor(45, 45, 45) # Ogólne tło okien i widżetów (Base, Window)
LIGHT_GRAY = QColor(53, 53, 53) # Tło elementów, np. toolbara, menu (Window)
VERY_DARK_GRAY = QColor(32, 32, 32) # Kolor tła dla kontrolek (Button)
# Kolory tekstu i obramowań
WHITE = QColor(200, 200, 200) # Główny kolor tekstu (Text, WindowText)
HIGHLIGHT = QColor(66, 135, 245) # Kolor podświetlenia (Highlight)
# Ustawienie głównej palety
# palette.setColor(QPalette.ColorRole.Window, LIGHT_GRAY)
palette.setColor(QPalette.ColorRole.Window, VERY_DARK_GRAY)
palette.setColor(QPalette.ColorRole.WindowText, WHITE)
palette.setColor(QPalette.ColorRole.Base, DARK_GRAY)
palette.setColor(QPalette.ColorRole.AlternateBase, LIGHT_GRAY)
palette.setColor(QPalette.ColorRole.ToolTipBase, WHITE)
palette.setColor(QPalette.ColorRole.ToolTipText, WHITE)
palette.setColor(QPalette.ColorRole.Text, WHITE)
palette.setColor(QPalette.ColorRole.Button, VERY_DARK_GRAY)
palette.setColor(QPalette.ColorRole.ButtonText, WHITE)
palette.setColor(QPalette.ColorRole.BrightText, Qt.GlobalColor.red)
palette.setColor(QPalette.ColorRole.Link, QColor(42, 130, 218))
palette.setColor(QPalette.ColorRole.PlaceholderText, QColor(150, 150, 150))
# Kolory zaznaczenia/interakcji
palette.setColor(QPalette.ColorRole.Highlight, HIGHLIGHT)
palette.setColor(QPalette.ColorRole.HighlightedText, Qt.GlobalColor.black)
# Kontrolki wyłączone (Disabled)
# palette.setColor(QPalette.ColorRole.Disabled, QPalette.ColorGroup.Active, QPalette.ColorRole.Text, QColor(127, 127, 127))
# palette.setColor(QPalette.ColorRole.Disabled, QPalette.ColorGroup.Active, QPalette.ColorRole.ButtonText, QColor(127, 127, 127))
# 3. Zastosowanie palety do aplikacji
app.setPalette(palette)