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ui_menu_bar.py
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ui_menu_bar.py
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import sys
import os
from PyQt5.QtWidgets import (QMainWindow, QWidget, QMenuBar, QDialog,
QMessageBox, QApplication,
QAction, qApp, QLabel, QFileDialog,
QHBoxLayout, QVBoxLayout, QDesktopWidget)
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QIcon
class UIMenuBar(QMenuBar):
__aboutText_ = '''
这是一个tlv分析工具，
用于分析tlv中缓存的RTP
数据：丢包，乱序等情况，
并将tlv中的RTP数据转
换成音视频数据播放出来。
作者：lijiahao
'''
# __cwd_ = os.getcwd()
__itemDialog_ = None
def __init__(self):
super().__init__()
self.__initMenu()
self.__initAbout()
#public:
def showTest(self):
availGeometry = QDesktopWidget().availableGeometry()
self.windows = QMainWindow()
self.windows.setMenuBar(self)
self.windows.resize(availGeometry.width()*0.5, availGeometry.height()*0.5)
self.windows.setWindowTitle('tlv分析工具')
self.windows.show()
#private:
def __addActExit(self):
exit_action = QAction('&退出', self)
exit_action.setShortcut('Ctrl+Shift+Q')
exit_action.setStatusTip('退出应用程序')
exit_action.triggered.connect(qApp.quit)
self.menubar_.addAction(exit_action)
def __addActAbout(self):
about_action = QAction('&关于...', self)
about_action.setStatusTip('关于')
about_action.triggered.connect(self.__onAboutDialog)
self.aboutbar_.addAction(about_action)
def __onAboutDialog(self):
if self.__itemDialog_ is not None:
self.__itemDialog_.destroy()
self.__itemDialog_ = None
self.__itemDialog_ = QDialog()
self.__itemDialog_.resize(300, 150)
self.__itemDialog_.setWindowTitle('关于')
hlayout = QHBoxLayout()
text = QLabel()
text.setText(self.__aboutText_)
hlayout.addStretch(1)
hlayout.addWidget(text)
hlayout.addStretch(1)
vlayout = QVBoxLayout()
vlayout.addStretch(1)
vlayout.addLayout(hlayout)
vlayout.addStretch(1)
self.__itemDialog_.setLayout(vlayout)
# 模态，只有关闭对话框，才能关闭主窗口
self.__itemDialog_.setWindowModality(Qt.ApplicationModal)
self.__itemDialog_.show()
def __initAbout(self):
self.aboutbar_ = self.addMenu('&关于')
self.__addActAbout()
def __initMenu(self):
self.menubar_ = self.addMenu('&菜单')
self.__addActOpenFile()
self.__addActExit()
def __addActOpenFile(self):
open_file_action = QAction('&打开文件...', self)
open_file_action.setShortcut('Ctrl+Shift+F')
open_file_action.setStatusTip('打开目标文件')
open_file_action.triggered.connect(self.__onFileDialog)
self.menubar_.addAction(open_file_action)
def __onFileDialog(self):
self.__filePath_, fileType = QFileDialog().getOpenFileName(self
, "选取tlv文件"
, os.getcwd()
, "All Files (*);;Tlv Files (*.tlv*)")
if self.__filePath_ == '':
return
if self.__itemDialog_ is not None:
self.__itemDialog_.destroy()
self.__itemDialog_ = None
self.__itemDialog_ = QDialog()
self.__itemDialog_.resize(500, 80)
self.__itemDialog_.setWindowTitle('文件路径')
text = QLabel(self.__itemDialog_)
if self.__filePath_ == '':
text.setText('未获取到文件路径')
else:
text.setText(self.__filePath_)
# 模态，只有关闭对话框，才能关闭主窗口
self.__itemDialog_.setWindowModality(Qt.ApplicationModal)
self.__itemDialog_.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = UIMenuBar()
ex.showTest()
sys.exit(app.exec_())