pyqt如何在已设置ui窗口里使用qpainter绘图?
ui窗口是用qtdesigner做的,通过pyuic转换成了.py文件,如何在.py中使用Qpainter进行绘图?
代码如下
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtGui import QPainter, QPen
class Ui_Form(object):
def setupUi(self, Form): Form.setObjectName("Form")
Form.resize(400, 300)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
def paintEvent(self, e):
qp = QPainter()
qp.begin(self)
self.drawLines(qp)
qp.end()
def drawLines(self, qp):
pen = QPen(Qt.black, 2, Qt.SolidLine)
qp.setPen(pen)
qp.drawLine(120, 120, 120, 210)
qp.setPen(pen)
qp.drawLine(135, 94, 120, 120)
qp.setPen(pen)
qp.drawLine(135, 94, 150, 120)
qp.setPen(pen)
qp.drawLine(150, 120, 150, 210)
qp.setPen(pen)
qp.drawLine(120, 210, 150, 210)
if name == "__main__":
import sysapp = QtWidgets.QApplication(sys.argv)
Form = QtWidgets.QWidget()
ui = Ui_Form()
ui.setupUi(Form)
Form.show()
sys.exit(app.exec_())
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