| from PyQt6.QtWidgets import (QWidget, QVBoxLayout, QHBoxLayout, |
| QLineEdit, QPushButton, QFileDialog, QGroupBox, |
| QLabel, QProgressBar) |
| from PyQt6.QtCore import pyqtSignal |
| import os |
|
|
|
|
| class FileSendWidget(QWidget): |
| """ |
| 专门用于文件发送的UI (带进度条和速率显示) |
| """ |
| |
| send_file_clicked = pyqtSignal(str) |
|
|
| def __init__(self, parent = None): |
| super().__init__(parent) |
| self.is_enabled = False |
| self.init_ui() |
| self.setFixedHeight(450) |
|
|
| def init_ui(self): |
| group = QGroupBox("发送文件") |
| layout = QVBoxLayout(group) |
|
|
| |
| file_layout = QHBoxLayout() |
| self.txt_file_path = QLineEdit() |
| self.txt_file_path.setReadOnly(True) |
| self.txt_file_path.setPlaceholderText("请选择要发送的文件...") |
| file_layout.addWidget(self.txt_file_path) |
|
|
| self.btn_browse = QPushButton("浏览...") |
| file_layout.addWidget(self.btn_browse) |
|
|
| layout.addLayout(file_layout) |
|
|
| |
| self.file_info_group = QGroupBox("文件信息") |
| self.file_info_group.setVisible(False) |
| file_info_layout = QVBoxLayout(self.file_info_group) |
| file_info_layout.setSpacing(5) |
| file_info_layout.setContentsMargins(10, 10, 10, 10) |
|
|
| |
| name_layout = QHBoxLayout() |
| name_layout.addWidget(QLabel("文件名:")) |
| self.lbl_file_name = QLabel("") |
| self.lbl_file_name.setStyleSheet("font-weight: bold;") |
| name_layout.addWidget(self.lbl_file_name) |
| name_layout.addStretch() |
| file_info_layout.addLayout(name_layout) |
|
|
| |
| size_layout = QHBoxLayout() |
| size_layout.addWidget(QLabel("文件大小:")) |
| self.lbl_file_size = QLabel("") |
| size_layout.addWidget(self.lbl_file_size) |
| size_layout.addStretch() |
| file_info_layout.addLayout(size_layout) |
|
|
| |
| type_layout = QHBoxLayout() |
| type_layout.addWidget(QLabel("文件类型:")) |
| self.lbl_file_type = QLabel("") |
| type_layout.addWidget(self.lbl_file_type) |
| type_layout.addStretch() |
| file_info_layout.addLayout(type_layout) |
|
|
| |
| path_layout = QVBoxLayout() |
| path_layout.addWidget(QLabel("完整路径:")) |
| self.lbl_full_path = QLabel("") |
| self.lbl_full_path.setWordWrap(True) |
| self.lbl_full_path.setStyleSheet("color: gray; font-size: 10px;") |
| path_layout.addWidget(self.lbl_full_path) |
| file_info_layout.addLayout(path_layout) |
|
|
| layout.addWidget(self.file_info_group) |
|
|
| |
| self.progress_group = QGroupBox("传输进度") |
| self.progress_group.setVisible(False) |
| progress_layout = QVBoxLayout(self.progress_group) |
| progress_layout.setSpacing(8) |
| progress_layout.setContentsMargins(10, 10, 10, 10) |
|
|
| |
| self.progress_bar = QProgressBar() |
| self.progress_bar.setMinimum(0) |
| self.progress_bar.setMaximum(100) |
| self.progress_bar.setValue(0) |
| self.progress_bar.setTextVisible(True) |
| self.progress_bar.setFormat("%p%") |
| progress_layout.addWidget(self.progress_bar) |
|
|
| |
| info_layout = QHBoxLayout() |
|
|
| |
| self.lbl_progress_info = QLabel("准备发送...") |
| self.lbl_progress_info.setStyleSheet("color: #555;") |
| info_layout.addWidget(self.lbl_progress_info) |
| info_layout.addStretch() |
|
|
| |
| self.lbl_speed = QLabel("速率: -- MB/s") |
| self.lbl_speed.setStyleSheet("color: #0066cc; font-weight: bold;") |
| info_layout.addWidget(self.lbl_speed) |
|
|
| progress_layout.addLayout(info_layout) |
|
|
| |
| time_layout = QHBoxLayout() |
| self.lbl_time_remaining = QLabel("预计剩余: --") |
| self.lbl_time_remaining.setStyleSheet("color: #666;") |
| time_layout.addWidget(self.lbl_time_remaining) |
| time_layout.addStretch() |
| progress_layout.addLayout(time_layout) |
|
|
| layout.addWidget(self.progress_group) |
| |
|
|
| |
| layout.addStretch() |
|
|
| |
| self.btn_send = QPushButton("发送文件") |
| self.btn_send.setEnabled(False) |
| self.btn_send.setMinimumHeight(35) |
| layout.addWidget(self.btn_send) |
|
|
| |
| main_layout = QVBoxLayout(self) |
| main_layout.addWidget(group) |
|
|
| |
| self.btn_browse.clicked.connect(self.browse_file) |
| self.btn_send.clicked.connect(self.on_send_click) |
| self.set_enabled(False) |
|
|
| def browse_file(self): |
| file_path, _ = QFileDialog.getOpenFileName(self, "选择文件", "", "所有文件 (*)") |
| if file_path: |
| self.txt_file_path.setText(file_path) |
| self.update_file_info(file_path) |
| |
| self.reset_progress() |
| if self.is_enabled: |
| self.btn_send.setEnabled(True) |
|
|
| def update_file_info(self, file_path): |
| """更新文件信息显示""" |
| try: |
| file_name = os.path.basename(file_path) |
| file_size = os.path.getsize(file_path) |
| file_ext = os.path.splitext(file_path)[1] |
|
|
| size_str = self.format_file_size(file_size) |
|
|
| self.lbl_file_name.setText(file_name) |
| self.lbl_file_size.setText(size_str) |
| self.lbl_file_type.setText(file_ext if file_ext else "无扩展名") |
| self.lbl_full_path.setText(file_path) |
|
|
| self.file_info_group.setVisible(True) |
|
|
| except Exception as e: |
| self.lbl_file_name.setText("错误") |
| self.lbl_file_size.setText(f"无法读取: {str(e)}") |
| self.lbl_file_type.setText("未知") |
| self.lbl_full_path.setText(file_path) |
| self.file_info_group.setVisible(True) |
|
|
| def format_file_size(self, size_bytes): |
| """格式化文件大小""" |
| for unit in ['B', 'KB', 'MB', 'GB', 'TB']: |
| if size_bytes < 1024.0: |
| return f"{size_bytes:.2f} {unit}" |
| size_bytes /= 1024.0 |
| return f"{size_bytes:.2f} PB" |
|
|
| def on_send_click(self): |
| file_path = self.txt_file_path.text() |
| if file_path: |
| self.start_transfer() |
| self.send_file_clicked.emit(file_path) |
|
|
| def set_enabled(self, enabled): |
| """由主窗口调用,在连接后启用""" |
| self.is_enabled = enabled |
| self.btn_browse.setEnabled(enabled) |
| self.btn_send.setEnabled(enabled and bool(self.txt_file_path.text())) |
|
|
| |
| def start_transfer(self): |
| """开始传输时调用""" |
| self.progress_group.setVisible(True) |
| self.progress_bar.setValue(0) |
| self.lbl_progress_info.setText("正在发送...") |
| self.lbl_speed.setText("速率: -- MB/s") |
| self.lbl_time_remaining.setText("预计剩余: 计算中...") |
| self.btn_send.setEnabled(False) |
|
|
| def update_progress(self, sent_bytes, total_bytes, speed_mbps): |
| """ |
| 更新进度信息 |
| :param sent_bytes: 已发送字节数 |
| :param total_bytes: 总字节数 |
| :param speed_mbps: 实时速率 (Mbps) |
| """ |
| if total_bytes == 0: |
| return |
|
|
| |
| progress = int((sent_bytes / total_bytes) * 100) |
| self.progress_bar.setValue(progress) |
|
|
| |
| sent_str = self.format_file_size(sent_bytes) |
| total_str = self.format_file_size(total_bytes) |
| self.lbl_progress_info.setText(f"{sent_str} / {total_str}") |
|
|
| |
| self.lbl_speed.setText(f"速率: {speed_mbps:.2f} Mbps") |
|
|
| |
| if speed_mbps > 0: |
| remaining_bytes = total_bytes - sent_bytes |
| remaining_bits = remaining_bytes * 8 |
| remaining_seconds = remaining_bits / (speed_mbps * 1_000_000) |
|
|
| if remaining_seconds < 60: |
| time_str = f"{remaining_seconds:.1f} 秒" |
| elif remaining_seconds < 3600: |
| time_str = f"{remaining_seconds / 60:.1f} 分钟" |
| else: |
| time_str = f"{remaining_seconds / 3600:.1f} 小时" |
|
|
| self.lbl_time_remaining.setText(f"预计剩余: {time_str}") |
| else: |
| self.lbl_time_remaining.setText("预计剩余: 计算中...") |
|
|
| def finish_transfer(self, success = True, message = ""): |
| """传输完成时调用""" |
| if success: |
| self.progress_bar.setValue(100) |
| self.lbl_progress_info.setText("传输完成!") |
| self.lbl_progress_info.setStyleSheet("color: green; font-weight: bold;") |
| self.lbl_time_remaining.setText("已完成") |
| else: |
| self.lbl_progress_info.setText(f"传输失败: {message}") |
| self.lbl_progress_info.setStyleSheet("color: red; font-weight: bold;") |
| self.lbl_time_remaining.setText("已中断") |
|
|
| self.btn_send.setEnabled(True) |
|
|
| def reset_progress(self): |
| """重置进度显示""" |
| self.progress_group.setVisible(False) |
| self.progress_bar.setValue(0) |
| self.lbl_progress_info.setText("准备发送...") |
| self.lbl_progress_info.setStyleSheet("color: #555;") |
| self.lbl_speed.setText("速率: -- MB/s") |
| self.lbl_time_remaining.setText("预计剩余: --") |
| |
