如何控制布局中 QFrame 的比例?
How to control the proportions of a QFrame in a layout?
这是我的代码。我的要求:如果 Window 增长,框架也会在两个方向上按比例扩展。我正在尝试使用 SetSize Policy,但什么也不会发生。如何实现?
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class FrameExample(QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("Frame Example")
self.setGeometry(100,100,600,600)
self.frame = QFrame()
self.frame.setFixedSize(200,200)
# self.frame.setSizePolicy(QSizePolicy.Minimum,QSizePolicy.Fixed)
self.frame.setStyleSheet("background-color:skyblue")
self.frame1 = QFrame()
self.frame1.setGeometry(QRect(10,10,600,600))
self.frame1.resize(600,600)
self.frame1.setStyleSheet("background-color:lightgreen")
layout = QVBoxLayout()
layout.addWidget(self.frame)
layout.addWidget(self.frame1)
self.setLayout(layout)
if __name__=="__main__":
app = QApplication(sys.argv)
countrywin =FrameExample()
countrywin.show()
sys.exit(app.exec_())
根据评论,您似乎希望顶部框架获得宽度的三分之一(即 200/600 == 1/3
),高度保持固定 - 但它不应调整为小于任一方向的最小值.同时,底部框架应该只占用剩余的 space。
这可以通过首先设置 minimum-size and an appropriate size-policy on the top frame. Its proportions can then be controlled by putting it in a horizontal layout and adding stretchers 适当的拉伸因子(取决于框架的对齐方式)来实现。
这是一个基于您的代码的工作示例:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class FrameExample(QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("Frame Example")
self.setGeometry(100, 100, 600, 600)
self.frame = QFrame()
self.frame.setStyleSheet("background-color:skyblue")
self.frame.setMinimumSize(QSize(200, 200))
self.frame.setSizePolicy(
QSizePolicy.MinimumExpanding, QSizePolicy.Fixed)
hbox = QHBoxLayout()
# align left
hbox.addWidget(self.frame, 1)
hbox.addStretch(2)
# align centre
# hbox.addStretch()
# hbox.addWidget(self.frame)
# hbox.addStretch()
self.frame1 = QFrame()
self.frame1.setStyleSheet("background-color:lightgreen")
layout = QVBoxLayout()
layout.addLayout(hbox)
layout.addWidget(self.frame1)
self.setLayout(layout)
if __name__=="__main__":
app = QApplication(sys.argv)
countrywin =FrameExample()
countrywin.show()
sys.exit(app.exec_())
这是我的代码。我的要求:如果 Window 增长,框架也会在两个方向上按比例扩展。我正在尝试使用 SetSize Policy,但什么也不会发生。如何实现?
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class FrameExample(QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("Frame Example")
self.setGeometry(100,100,600,600)
self.frame = QFrame()
self.frame.setFixedSize(200,200)
# self.frame.setSizePolicy(QSizePolicy.Minimum,QSizePolicy.Fixed)
self.frame.setStyleSheet("background-color:skyblue")
self.frame1 = QFrame()
self.frame1.setGeometry(QRect(10,10,600,600))
self.frame1.resize(600,600)
self.frame1.setStyleSheet("background-color:lightgreen")
layout = QVBoxLayout()
layout.addWidget(self.frame)
layout.addWidget(self.frame1)
self.setLayout(layout)
if __name__=="__main__":
app = QApplication(sys.argv)
countrywin =FrameExample()
countrywin.show()
sys.exit(app.exec_())
根据评论,您似乎希望顶部框架获得宽度的三分之一(即 200/600 == 1/3
),高度保持固定 - 但它不应调整为小于任一方向的最小值.同时,底部框架应该只占用剩余的 space。
这可以通过首先设置 minimum-size and an appropriate size-policy on the top frame. Its proportions can then be controlled by putting it in a horizontal layout and adding stretchers 适当的拉伸因子(取决于框架的对齐方式)来实现。
这是一个基于您的代码的工作示例:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class FrameExample(QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("Frame Example")
self.setGeometry(100, 100, 600, 600)
self.frame = QFrame()
self.frame.setStyleSheet("background-color:skyblue")
self.frame.setMinimumSize(QSize(200, 200))
self.frame.setSizePolicy(
QSizePolicy.MinimumExpanding, QSizePolicy.Fixed)
hbox = QHBoxLayout()
# align left
hbox.addWidget(self.frame, 1)
hbox.addStretch(2)
# align centre
# hbox.addStretch()
# hbox.addWidget(self.frame)
# hbox.addStretch()
self.frame1 = QFrame()
self.frame1.setStyleSheet("background-color:lightgreen")
layout = QVBoxLayout()
layout.addLayout(hbox)
layout.addWidget(self.frame1)
self.setLayout(layout)
if __name__=="__main__":
app = QApplication(sys.argv)
countrywin =FrameExample()
countrywin.show()
sys.exit(app.exec_())