PyQt：如何创建自定义组合标题栏和菜单栏

PyQt: How to create custom combined titlebar and menubar(PyQt：如何创建自定义组合标题栏和菜单栏)

问题描述

我想将菜单和标题设置在一个栏中，但不知道如何布局菜单栏和标题栏(或我自己的标题栏)。

# -*- coding:utf-8 -*- 

from PyQt5 import QtWidgets,QtGui,QtCore
import sys

qss = ""

class UI(QtWidgets.QMainWindow):
    def __init__(self):
        super().__init__()
        self.setui()  
    def setui(self):
        #----------main-window----------------------
        self.setGeometry(0,0,1366,768) #x,y,w,h
        self.setWindowTitle('hello world')
        self.setWindowFlag(QtCore.Qt.FramelessWindowHint)
        #----------menu-bar---------------------
        #--------file-menu-----
        self.menu_file=self.menuBar().addMenu('file')
        self.menu_file_open=self.menu_file.addAction('open')
        self.menu_file_save=self.menu_file.addAction('save')
        self.menu_file_saveas=self.menu_file.addAction('save as...')
        self.menu_file_quit=self.menu_file.addAction('exit')
        #-----------experient-menu----------
        self.menu_work=self.menuBar().addMenu('work')
        #-------------analysis-menu---------
        self.menu_analysis=self.menuBar().addMenu('analysis')
        #------------edit-menu--------------
        self.menu_edit=self.menuBar().addMenu('edit')
        #------------window-menu--------------
        self.menu_window=self.menuBar().addMenu('window')
        #------------help---menu--------------
        self.menu_help=self.menuBar().addMenu('help')
        #-------------set---qss----------------------
        self.setStyleSheet(qss)
        #-------functions--connect-------------------
        self.menu_file_quit.triggered.connect(QtWidgets.qApp.quit)
        self.show()
if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    ex = UI()
    sys.exit(app.exec_()) 

我希望栏包括图标、菜单、标题和这三个按钮，就像vscode的菜单栏一样。

推荐答案

试用：

import sys
from PyQt5.QtCore import pyqtSlot, QPoint, Qt, QRect
from PyQt5.QtWidgets import (QMainWindow, QApplication, QPushButton, QHBoxLayout,
                             QVBoxLayout, QTabWidget, QWidget, QAction,
                             QLabel, QSizeGrip, QMenuBar, qApp)
from PyQt5.QtGui import QIcon


class TitleBar(QWidget):
    height = 35
    def __init__(self, parent):
        super(TitleBar, self).__init__()
        self.parent = parent
        self.layout = QHBoxLayout()
        self.layout.setContentsMargins(0,0,0,0)

        self.menu_bar = QMenuBar()
        self.menu_bar.setStyleSheet("""
            color: #fff;
            background-color: #23272A;
            font-size: 14px;
            padding: 4px; 
        """)  
        self.menu_file = self.menu_bar.addMenu('file')
        self.menu_file_open=self.menu_file.addAction('open')
        self.menu_file_save=self.menu_file.addAction('save')
        self.menu_file_saveas=self.menu_file.addAction('save as...')
        self.menu_file_quit=self.menu_file.addAction('exit')
        self.menu_file_quit.triggered.connect(qApp.quit)

        self.menu_work=self.menu_bar.addMenu('work')
        self.menu_analysis=self.menu_bar.addMenu('analysis')
        self.menu_edit=self.menu_bar.addMenu('edit')
        self.menu_window=self.menu_bar.addMenu('window')
        self.menu_help=self.menu_bar.addMenu('help')

        self.layout.addWidget(self.menu_bar) 

        self.title = QLabel("Hello World!")
        self.title.setFixedHeight(self.height)
        self.layout.addWidget(self.title)
        self.title.setStyleSheet("""
            background-color: #23272a;  /* 23272a   #f00*/
            font-weight: bold;
            font-size: 16px;
            color: blue;
            padding-left: 170px;
        """)

        self.closeButton = QPushButton(' ')                            
        self.closeButton.clicked.connect(self.on_click_close)
        self.closeButton.setStyleSheet("""
            background-color: #DC143C;
            border-radius: 10px;
            height: {};
            width: {};
            margin-right: 3px;
            font-weight: bold;
            color: #000;
            font-family: "Webdings";
            qproperty-text: "r";
        """.format(self.height/1.7,self.height/1.7))

        self.maxButton = QPushButton(' ')
        self.maxButton.clicked.connect(self.on_click_maximize)
        self.maxButton.setStyleSheet("""
            background-color: #32CD32;
            border-radius: 10px;
            height: {};
            width: {};
            margin-right: 3px;
            font-weight: bold;
            color: #000;
            font-family: "Webdings";
            qproperty-text: "1";
        """.format(self.height/1.7,self.height/1.7))

        self.hideButton = QPushButton(' ')
        self.hideButton.clicked.connect(self.on_click_hide)
        self.hideButton.setStyleSheet("""
            background-color: #FFFF00;
            border-radius: 10px;
            height: {};
            width: {};
            margin-right: 3px;
            font-weight: bold;
            color: #000;
            font-family: "Webdings";
            qproperty-text: "0";
        """.format(self.height/1.7,self.height/1.7))

        self.layout.addWidget(self.hideButton)
        self.layout.addWidget(self.maxButton)
        self.layout.addWidget(self.closeButton)
        self.setLayout(self.layout)

        self.start = QPoint(0, 0)
        self.pressing = False
        self.maximaze = False

    def resizeEvent(self, QResizeEvent):
        super(TitleBar, self).resizeEvent(QResizeEvent)
        self.title.setFixedWidth(self.parent.width())

    def mousePressEvent(self, event):
        self.start = self.mapToGlobal(event.pos())
        self.pressing = True

    def mouseMoveEvent(self, event):
        if self.pressing:
            self.end = self.mapToGlobal(event.pos())
            self.movement = self.end-self.start
            self.parent.move(self.mapToGlobal(self.movement))
            self.start = self.end

    def mouseReleaseEvent(self, QMouseEvent):
        self.pressing = False

    def on_click_close(self):
        sys.exit()

    def on_click_maximize(self):
        self.maximaze = not self.maximaze
        if self.maximaze:    self.parent.setWindowState(Qt.WindowNoState)
        if not self.maximaze:
            self.parent.setWindowState(Qt.WindowMaximized)

    def on_click_hide(self):
        self.parent.showMinimized()


class StatusBar(QWidget):
    def __init__(self, parent):
        super(StatusBar, self).__init__()
        self.initUI()
        self.showMessage("showMessage: Hello world!")

    def initUI(self):
        self.label = QLabel("Status bar...")
        self.label.setFixedHeight(24)
        self.label.setAlignment(Qt.AlignLeft | Qt.AlignVCenter)
        self.label.setStyleSheet("""
            background-color: #23272a;
            font-size: 12px;
            padding-left: 5px;
            color: white;
        """)
        self.layout = QHBoxLayout()
        self.layout.setContentsMargins(0,0,0,0)
        self.layout.addWidget(self.label)
        self.setLayout(self.layout)

    def showMessage(self, text):
        self.label.setText(text)


class MainWindow(QWidget):
    def __init__(self):
        super(MainWindow, self).__init__()
        self.setFixedSize(800, 400)
        self.setWindowFlags(self.windowFlags() | Qt.FramelessWindowHint)        
        self.setStyleSheet("background-color: #2c2f33;")
        self.setWindowTitle('Code Maker')

        self.title_bar = TitleBar(self) 
        self.status_bar = StatusBar(self)

        self.layout  = QVBoxLayout()
        self.layout.setContentsMargins(0,0,0,0)
        self.layout.addWidget(self.title_bar)
        self.layout.addStretch(1)
        self.layout.addWidget(self.status_bar)
        self.layout.setSpacing(0)                               
        self.setLayout(self.layout)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    mw = MainWindow()
    mw.show()
    sys.exit(app.exec_())

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