pyqt6에서 폼간 데이터 전송방법

PyQt6에서 폼 간 데이터 전송 방법은 PyQt5와 매우 유사합니다. 폼 간 데이터 전송을 위해 다음과 같은 방법들을 사용할 수 있습니다:

1. **시그널과 슬롯 (Signals and Slots):** 시그널과 슬롯 메커니즘은 PyQt의 핵심 기능 중 하나입니다. 한 폼에서 시그널을 발생시키고 다른 폼에서 해당 시그널에 슬롯을 연결하여 데이터를 전송할 수 있습니다.

예를 들어, 데이터를 전송하는 폼에서 다음과 같이 시그널을 정의하고, 받는 폼에서 해당 시그널에 슬롯을 연결할 수 있습니다:

```python
from PyQt6.QtWidgets import QApplication, QWidget, QPushButton
from PyQt6.QtCore import pyqtSignal

class SendingForm(QWidget):
    data_sent = pyqtSignal(str)

    def __init__(self):
        super().__init__()
        self.send_button = QPushButton('Send Data', self)
        self.send_button.clicked.connect(self.send_data)

    def send_data(self):
        data = "Hello, this is data!"
        self.data_sent.emit(data)

class ReceivingForm(QWidget):
    def __init__(self):
        super().__init__()
        self.received_data = None

    def receive_data(self, data):
        self.received_data = data
        # 처리할 작업 수행

# 애플리케이션 실행
app = QApplication([])
sender_form = SendingForm()
receiver_form = ReceivingForm()

sender_form.data_sent.connect(receiver_form.receive_data)

sender_form.show()
receiver_form.show()

app.exec()
```

2. **공유 모델 (Shared Model):** 데이터를 공유하는 모델을 만들고, 여러 폼에서 이 모델에 접근하여 데이터를 읽거나 쓸 수 있습니다. 일반적으로 데이터 클래스를 정의하여 이를 공유 모델로 사용합니다.

```python
from PyQt6.QtWidgets import QApplication, QWidget, QPushButton, QVBoxLayout, QLabel, QLineEdit

class DataModel:
    def __init__(self):
        self.data = ""

class SendingForm(QWidget):
    def __init__(self, data_model):
        super().__init__()
        self.data_model = data_model
        self.send_button = QPushButton('Send Data', self)
        self.send_button.clicked.connect(self.send_data)

    def send_data(self):
        data = "Hello, this is data!"
        self.data_model.data = data

class ReceivingForm(QWidget):
    def __init__(self, data_model):
        super().__init__()
        self.data_model = data_model
        self.label = QLabel("Received Data:", self)
        self.data_display = QLineEdit(self)
        self.data_display.setReadOnly(True)

    def update_display(self):
        self.data_display.setText(self.data_model.data)

# 애플리케이션 실행
app = QApplication([])
data_model = DataModel()
sender_form = SendingForm(data_model)
receiver_form = ReceivingForm(data_model)

sender_form.show()
receiver_form.show()

app.exec()
```

위 예시에서는 `DataModel` 클래스를 생성하여 `data`라는 데이터 속성을 관리합니다. `SendingForm`에서 데이터를 변경하고, `ReceivingForm`에서는 해당 데이터를 읽어서 화면에 표시합니다.

이러한 방법들을 사용하여 PyQt6에서 폼 간 데이터 전송을 쉽게 구현할 수 있습니다. 데이터의 복잡성과 상호 작용의 종류에 따라 적절한 방법을 선택하여 사용하시면 됩니다.