问题描述
如何在 QGridLayout 中根据需要排列 Widget?例如,在我的代码中,
-
我需要减少“国家”和“国家”按钮之间的空间
-
将小部件放在最左上角(左上角的国家按钮 - 无边距)
-
减少“国家”和“地区”按钮之间的空间
-
将“bank”按钮放在“Town”按钮的中心
-
需要/按照附加图片安排布局
import sys
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class GridLayout_Example(QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("Grid layout Example")
self.setGeometry(100,100,1600,600)
self.initUI()
self.layout()
self.show()
def initUI(self):
self.btn_country_63 = QPushButton()
self.btn_country_63.setText("Country")
self.btn_country_63.setObjectName("ob_btn_country_63")
self.btn_country_63.setProperty('group',"1")
self.btn_country_63.setFixedSize(100,25)
self.btn_country_63.setStyleSheet("background-color:red;color:white")
self.btn_country_63.installEventFilter(self)
# self.btn_country_63.clicked.connect(self.btn_country_63_select)
self.btn_state_63 = QPushButton()
self.btn_state_63.setText("State")
self.btn_state_63.setObjectName("ob_btn_state_63")
self.btn_state_63.setProperty('group',"1")
self.btn_state_63.setFixedSize(100,25)
self.btn_state_63.setStyleSheet("background-color:red;color:white")
self.btn_state_63.installEventFilter(self)
# self.btn_state_63.clicked.connect(self.btn_state_63_select)
self.btn_district_63 = QPushButton()
self.btn_district_63.setText("District")
self.btn_district_63.setObjectName("ob_btn_district_63")
self.btn_district_63.setProperty('group',"1")
self.btn_district_63.setFixedSize(100,25)
self.btn_district_63.setStyleSheet("background-color:red;color:white")
self.btn_district_63.installEventFilter(self)
# self.btn_district_63.clicked.connect(self.btn_district_63_select)
self.btn_town_63 = QPushButton()
self.btn_town_63.setText("Town")
self.btn_town_63.setObjectName("ob_btn_town_63")
self.btn_town_63.setProperty('group',"1")
self.btn_town_63.installEventFilter(self)
self.btn_town_63.setFixedSize(60,80)
self.btn_town_63.setStyleSheet("background-color:red;color:white")
# self.btn_town_63.clicked.connect(self.btn_town_63_select)
self.btn_bank_63 = QPushButton()
self.btn_bank_63.setText("Bank")
self.btn_bank_63.setObjectName("ob_btn_bank_63")
self.btn_bank_63.setProperty('group',"1")
self.btn_bank_63.installEventFilter(self)
self.btn_bank_63.setFixedSize(100,25)
# self.btn_bank_63.clicked.connect(self.btn_bank_63_select)
def layout(self):
self.layout_main_toppannel_2_right = QGridLayout()
self.frame_main_toppannel_2_right = QFrame()
self.frame_main_toppannel_2_right.setProperty('color',"2")
self.frame_main_toppannel_2_right.setFixedHeight(100)
self.frame_main_toppannel_2_right.setStyleSheet("background-color: lightgreen")
self.layout_main_toppannel_2_right = QGridLayout(self.frame_main_toppannel_2_right)
self.container63 = QWidget()
self.container63_box = QGridLayout(self.container63)
self.container63_box.addWidget(self.btn_country_63,Qt.AlignTop)
self.container63_box.addWidget(self.btn_district_63,1,Qt.AlignTop)
self.container63_box.addWidget(self.btn_state_63,Qt.AlignTop)
self.container63_box.addWidget(self.btn_town_63,3)
self.container63_box.addWidget(self.btn_bank_63,4)
self.container63_box.setColumnStretch(0,4)
self.container63_box.setRowStretch(0,2)
self.stackitem = QStackedWidget()
self.stackitem.addWidget(self.container63)
self.layout_main_toppannel_2_right.addWidget(self.stackitem)
self.main_layout = QHBoxLayout()
self.main_layout.addWidget(self.frame_main_toppannel_2_right)
self.setLayout(self.main_layout)
def main():
app = QApplication(sys.argv)
mainwindow = GridLayout_Example()
mainwindow.show()
sys.exit(app.exec_())
if __name__ == "__main__":
main()
解决方法
在a previous post中我详细解释了QGridLayout的操作,所以在这篇文章中我只会详细介绍最优秀的。
-
要删除项目之间的空间,您必须使用 setSpacing(0)(您也可以使用 setHorizontalSpacing(0) 和 setVerticalSpacing(0))。
-
要使元素被推到左侧,您可以将拉伸设置为假想的第五列。
-
我还修改了“Town”的高度,因为它与 3 个元素的总高度不匹配,从而强制出现空格。
-
最后请注意,有些边距不能通过代码更改,因为它们是由操作系统的本机 QStyles 实现的,以避免我强加使用样式融合。
import sys
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class GridLayout_Example(QWidget):
def __init__(self,parent=None):
super().__init__(parent)
self.build_widgets()
self.build_layout()
self.resize(640,480)
def build_widgets(self):
self.btn_country_63 = QPushButton(
text="Country",styleSheet="background-color:red;color:white"
)
self.btn_country_63.setFixedSize(100,25)
self.btn_state_63 = QPushButton(
text="State",styleSheet="background-color:red;color:white"
)
self.btn_state_63.setFixedSize(100,25)
self.btn_district_63 = QPushButton(
text="District",styleSheet="background-color:red;color:white"
)
self.btn_district_63.setFixedSize(100,25)
self.btn_town_63 = QPushButton(
text="Town",styleSheet="background-color:red;color:white"
)
self.btn_town_63.setFixedSize(60,75)
self.btn_bank_63 = QPushButton(
text="Bank",styleSheet="background-color:red;color:white"
)
self.btn_bank_63.setFixedSize(100,25)
self.btn_zip_63 = QPushButton(
text="Zip Code",styleSheet="background-color:red;color:white"
)
self.btn_zip_63.setFixedSize(100,25)
def build_layout(self):
self.container = QFrame()
self.container.setStyleSheet("background-color: lightgreen")
grid_layout = QGridLayout(self.container)
grid_layout.addWidget(self.btn_country_63,1,1)
grid_layout.addWidget(self.btn_state_63,1)
grid_layout.addWidget(self.btn_district_63,1)
grid_layout.addWidget(self.btn_town_63,2,3,1)
grid_layout.addWidget(self.btn_bank_63,1)
grid_layout.addWidget(self.btn_zip_63,4,1)
grid_layout.setColumnStretch(5,1)
grid_layout.setSpacing(0)
grid_layout.setContentsMargins(0,0)
lay = QVBoxLayout(self)
lay.addWidget(self.container)
self.container.setFixedHeight(self.container.sizeHint().height())
def main():
app = QApplication(sys.argv)
print("default-style: ",app.style().metaObject().className())
app.setStyle("fusion")
mainwindow = GridLayout_Example()
mainwindow.show()
sys.exit(app.exec_())
if __name__ == "__main__":
main()