PyQt:OSX 中缺少对话框的最小化窗口按钮 [英] PyQt: Dialog's Minimize Window Button is Missing in OSX

问题描述

使用以下方法创建的对话框:

A dialog created with:

class GUI(QtGui.QMainWindow):
    def __init__(self):
        super(GUI, self).__init__()

global dialog
dialog = QtGui.QDialog()
myGui = GUI()

缺少最小化窗口按钮 (OSX).它在 Windows 中.我是否必须设置一些标志来显示这个丢失的控制器?请指教，提前致谢！

is missing a minimize window button (OSX). It is there in Windows. Do I have to set some flag to display this missing controller? Please advise, Thanks in advance!

我没有尝试使用 QtGui.QDialog() 解决无最小化按钮的问题.但似乎我部分知道如何使用 QtGui.QMainWindow 获取丢失的按钮.这是说明基本语法的最简单代码:

I didn't try to solve a no-minimize-button issue with QtGui.QDialog(). But it appears I partically aware how to get that missing button using QtGui.QMainWindow. Here is the simplest code illustrating a basic syntax:

from PyQt4 import QtCore, QtGui

app = QtGui.QApplication(sys.argv)

class MainWindow(QtGui.QMainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()

        myQWidget = QtGui.QWidget()
        myBoxLayout = QtGui.QVBoxLayout()       

        myLineEdit = QtGui.QLineEdit("myLineEdit")
        myBoxLayout.addWidget(myLineEdit)

        myQWidget.setLayout(myBoxLayout)

        self.setCentralWidget(myQWidget)


window = MainWindow()
window.show()
window.resize(480,320)
sys.exit(app.exec_())

QtGui.QMainWindow 背后的一个关键"概念"是我们首先声明 QWidget()

A 'key' 'concept' behind QtGui.QMainWindow is that first we declare QWidget()

myQWidget = QtGui.QWidget() 

我们为其分配主要"布局:

to which we assign a 'main' layout:

myQWidget.setLayout(myBoxLayout)

不要忘记的最后一步是使用以下方法将此 QWidget() 分配给对话框本身:

Last step not to forget is to assign this QWidget() to dialog itself using:

self.setCentralWidget(myQWidget)

其中 'self' 是 QtGui.QMainWindow 的实例化子类.

where 'self' is an instanced subclass of QtGui.QMainWindow.

推荐答案

QtGui.QDialog 不提供任何平台上的最小化按钮，但 QtGui.QMainWindow 提供在每个平台(Windows、Linux 和 OSX)上.您正在创建一个 QDialog 对象，同时创建一个 GUI 对象，它是 QMainWindow 的子类.如果您编写 myGui.show()，该窗口将为您提供所有三个按钮(最小化、最大化/恢复和关闭).但是在 dialog.show() 的情况下，你不会有两个(最小化和最大化/恢复).这是Qt的限制.

QtGui.QDialog does not offer a minimize button on any platform, but QtGui.QMainWindow does offer on each platform (Windows, Linux and OSX). You are creating a QDialog object and at the same time an object of GUI which is subclass of QMainWindow. If you write myGui.show() the window will offer you all three buttons (minimize, maximize/restore and close). But in case of dialog.show(), you will not have two of them (minimize and maximize/restore). It's Qt's limitation.

这篇关于PyQt:OSX 中缺少对话框的最小化窗口按钮的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！