File size: 9,731 Bytes
387c3d6 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 | 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)
"""
# 信号: (file_path)
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)
# --- 文件选择 ---
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)
# === 文件信息显示区域 ===
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)
# 文件名
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)
# 文件大小
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)
# 文件类型
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)
# 完整路径
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)
# === 新增: 传输进度区域 ===
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)
# 进度条
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)
# 传输信息
info_layout = QHBoxLayout()
# 已发送 / 总大小
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()
# 实时速率
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)
# 预计剩余时间
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)
# === 结束新增 ===
# 添加弹性空间
layout.addStretch()
# 发送按钮
self.btn_send = QPushButton("发送文件")
self.btn_send.setEnabled(False)
self.btn_send.setMinimumHeight(35)
layout.addWidget(self.btn_send)
# 设置主布局
main_layout = QVBoxLayout(self)
main_layout.addWidget(group)
# 连接信号
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)
# 重置进度显示
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()))
# === 新增: 进度控制方法 ===
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
# 更新进度条
progress = int((sent_bytes / total_bytes) * 100)
self.progress_bar.setValue(progress)
# 更新已发送信息
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}")
# 更新速率 (显示为 Mbps)
self.lbl_speed.setText(f"速率: {speed_mbps:.2f} Mbps")
# 计算预计剩余时间
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: --")
# === 结束新增 === |