如何解决1 个堆叠的小部件比第二个大,如何设置每个小部件的固定大小?
我正在尝试创建一个可以从基本计算器切换到科学计算器的计算器。我被建议使用堆叠的小部件来布局按钮。但是我在小部件之间切换时遇到了问题。
主窗口的大小。主窗口默认为最大小部件的大小,因此基本计算器的按钮看起来很小,应该由科学计算器的按钮填充。下面是描绘它的图像: 基本计算器,这是第一个小部件:
vs Scientific Calculator,第二个小部件:
以下是我想要实现的从科学计算器切换到基本计算器(从第二个小部件到第一个小部件)的布局:
以下是我在计算器上使用的基本代码示例。
import sys
from functools import cached_property,partial
from PyQt6.QtCore import QRect,Qt
from PyQt6.QtGui import QAction
from PyQt6.QtWidgets import (
QApplication,qgridLayout,QLineEdit,QMainWindow,QMenu,QMenuBar,QPushButton,QStackedWidget,QVBoxLayout,QWidget,)
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.buttons = {}
self.setwindowTitle("Try")
central_widget = QWidget()
self.setCentralWidget(central_widget)
self.lay = QVBoxLayout(central_widget)
self.lineedit()
self.lay.addWidget(self.stacked_widget,alignment=Qt.AlignmentFlag.AlignCenter)
maps = [
{"A": (0,0),"B": (0,1),"C": (1,"D": (1,1)},# first page
{"A": (0,"E": (0,2),"F": (0,3),"G": (1,"H": (1,3)},# second page
]
for m in maps:
page = self.create_page(m)
self.stacked_widget.addWidget(page)
@cached_property
def stacked_widget(self):
return QStackedWidget()
def lineedit(self):
self.le = QLineEdit()
self.le.setFixedHeight(35)
self.lay.addWidget(self.le)
def set_lineedit(self,text):
self.le.setText(text)
self.le.setFocus()
def line(self):
return self.le.text()
def create_page(self,map_letters):
page = QWidget()
grid_layout = qgridLayout(page)
for name,pos in map_letters.items():
self.buttons[name] = QPushButton(name)
self.buttons[name].setFixedSize(20,20)
grid_layout.addWidget(self.buttons[name],*pos)
return page
class Menu:
def __init__(self,MainWindow):
super().__init__()
self.view = MainWindow
self.menuBar = QMenuBar()
self.menuBar.setGeometry(QRect(0,277,22))
self.view.setMenuBar(self.menuBar)
self.open = QMenu(self.menuBar)
self.open.setTitle("Open")
self.menuBar.addAction(self.open.menuAction())
self.this = QAction(self.menuBar)
self.this.setText("This")
self.this.setCheckable(True)
self.open.addAction(self.this)
self.this.triggered.connect(self.show_new_window)
def show_new_window(self,checked):
self.view.stacked_widget.setCurrentIndex(1 if checked else 0)
class Controller:
def __init__(self,MainWindow):
self.view = MainWindow
self.connectSignals()
def buildExpression(self,sub_exp):
expression = self.view.line() + sub_exp
self.view.set_lineedit(expression)
def connectSignals(self):
for btnText,btn in self.view.buttons.items():
btn.clicked.connect(partial(self.buildExpression,btnText))
app = QApplication(sys.argv)
w = MainWindow()
Controller(w)
m = Menu(w)
w.show()
app.exec()
如何设置堆叠小部件中每个小部件的固定大小?
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