[英]PyQT4 Datetime widget
I'm using PyQt4 to make a Application and on the window their is a datetime-label( live updating). 我正在使用PyQt4制作应用程序,并且在窗口上是日期时间标签(实时更新)。 I Wan't to put this label into a Hboxlayout, together with two other QLabels.
我不想将这个标签与其他两个QLabel一起放入Hboxlayout。 This code is used:
使用此代码:
import sys,os
from PyQt4 import QtGui,QtCore
from label_datetime import *
class ApplicationWindow(QtGui.QMainWindow):
def __init__(self):
QtGui.QMainWindow.__init__(self)
self.main_widget = QtGui.QWidget(self)
layout=QtGui.QGridLayout(self.main_widget)
layout.setSpacing(10)
self.datetime=label_datetime()
self.linkertitel=QtGui.QLabel('Uurbasis')
self.rechtertitel=QtGui.QLabel('Dagbasis')
qf=QtGui.QFont("Arial",20)
self.linkertitel.setFont(qf)
self.rechtertitel.setFont(qf)
self.rechtertitel.setStyleSheet('color: #d3d3d3; border:1px solid rgb(0, 255, 0)')
self.linkertitel.setStyleSheet('color: #d3d3d3; border:1px solid rgb(0, 255, 0)')
self.linkertitel.setAlignment(QtCore.Qt.AlignCenter)
self.rechtertitel.setAlignment(QtCore.Qt.AlignCenter)
layout_titel=QtGui.QHBoxLayout()
layout_titel.addWidget(self.linkertitel)
layout_titel.addWidget(self.datetime)
layout_titel.addWidget(self.rechtertitel)
self.groep_titel=QtGui.QGroupBox()
self.groep_titel.setLayout(layout_titel)
layout.addWidget(self.groep_titel,1,1,1,10)
self.main_widget.setFocus()
self.setCentralWidget(self.main_widget)
QtGui.QShortcut(QtGui.QKeySequence("Ctrl+Q"), self, self.close)
qApp = QtGui.QApplication(sys.argv)
aw = ApplicationWindow()
aw.setWindowTitle("my app")
aw.showFullScreen()
aw.show()
sys.exit(qApp.exec_())
And my code for the label_datetime: 而我的label_datetime代码:
from PyQt4 import QtGui,QtCore
from PyQt4.Qt import QFont, QColor
class label_datetime(QtGui.QWidget):
def __init__(self):
super(label_datetime,self).__init__()
self.label = QtGui.QLabel('tijd',self)
qf=QtGui.QFont("Arial",20)
self.label.setFont(qf)
self.label.setAlignment(QtCore.Qt.AlignCenter)
self.label.adjustSize()
self.setStyleSheet('color: #d3d3d3; border:1px solid rgb(0, 255, 0)')
timer=QtCore.QTimer(self)
timer.timeout.connect(self.displaytime)
timer.start(1000)
self.show()
def displaytime(self):
tijd=QtCore.QDateTime.currentDateTime().toString()
self.label.setText(QtCore.QDateTime.currentDateTime().toString())
self.label.setAlignment(QtCore.Qt.AlignCenter)
self.label.adjustSize()
I want the three labels to be in the center of the given space. 我希望这三个标签位于给定空间的中心。 however this datetime label doesn't want to resize.
但是,此日期时间标签不想调整大小。 The result is this:
结果是这样的:
If I remove self.label.adjustSize(), and add: self.label.setSizePolicy(QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Expanding), the Qlabel shrinks and only half of the date is visibe.The size of my datetime lable doesn't want to change. 如果我删除self.label.adjustSize()并添加:self.label.setSizePolicy(QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Expanding),则Qlabel会缩小并且只有一半的日期是可见的。我datetime的大小标签不想改变。 Does someone know what I'm doing wrong ?
有人知道我在做什么错吗?
The problem is you're expecting a QtGui.Widget
behaves as a QtGui.QLabel
, your label_datetame
class is not a QLabel
, is a QWidget
since its inherits from it. 问题是您期望
QtGui.Widget
表现为QtGui.QLabel
,您的label_datetame
类不是QLabel
,而是QWidget
因为它是从其继承的。
You should inherit your class from QLabel
in order allow the other widgets ( QLayout
, QWindow
, etc...) "talk" to it the "QLabel languaje". 您应该从
QLabel
继承您的类,以便允许其他小部件( QLayout
, QWindow
等)“与”“ QLabel QWindow
”对话。 A QLabel
has functions, methods and properties a QWidget
hasn't. QLabel
具有QWidget
所没有的功能,方法和属性。
Change your class to this: 将您的班级更改为此:
class label_datetime(QtGui.QLabel):
def __init__(self, parent=None):
super(label_datetime,self).__init__(parent)
qf = QtGui.QFont("Arial", 20)
self.setFont(qf)
self.setAlignment(QtCore.Qt.AlignCenter)
self.adjustSize()
self.setStyleSheet('color: #d3d3d3; border:1px solid rgb(0, 255, 0)')
timer = QtCore.QTimer(self)
timer.timeout.connect(self.displaytime)
timer.start(1000)
self.show()
def displaytime(self):
tijd = QtCore.QDateTime.currentDateTime().toString()
self.setText(QtCore.QDateTime.currentDateTime().toString())
self.setAlignment(QtCore.Qt.AlignCenter)
self.adjustSize()
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