QBrush

介绍

QBrush(画刷)是一个基本的图形对象，用于填充如矩形、椭圆形或多边形等形状。QBrush有三种类型:预定义、过渡和纹理图案。

QDialog的使用

import sys 
from PyQt5.QtWidgets import *  
from PyQt5.QtGui import *
from PyQt5.QtCore import Qt 

class Drawing(QWidget): 
	def __init__(self):
		super().__init__()  
		self.initUI()

	def initUI(self):   
		self.setGeometry(300, 300, 365, 280)
		self.setWindowTitle('画刷例子')        
		self.show()

	def paintEvent(self, e): 
		qp = QPainter()
		qp.begin(self)
		self.drawLines(qp)
		qp.end()

	def drawLines(self, qp): 
		brush = QBrush(Qt.SolidPattern)
		qp.setBrush(brush)
		qp.drawRect(10, 15, 90, 60)

		brush = QBrush(Qt.Dense1Pattern)
		qp.setBrush(brush)
		qp.drawRect(130, 15, 90, 60)

		brush = QBrush(Qt.Dense2Pattern)
		qp.setBrush(brush)
		qp.drawRect(250, 15, 90, 60)

		brush = QBrush(Qt.Dense3Pattern)
		qp.setBrush(brush)
		qp.drawRect(10, 105, 90, 60)

		brush = QBrush(Qt.DiagCrossPattern)
		qp.setBrush(brush)
		qp.drawRect(10, 105, 90, 60)

		brush = QBrush(Qt.Dense5Pattern)
		qp.setBrush(brush)
		qp.drawRect(130, 105, 90, 60)

		brush = QBrush(Qt.Dense6Pattern)
		qp.setBrush(brush)
		qp.drawRect(250, 105, 90, 60)

		brush = QBrush(Qt.HorPattern)
		qp.setBrush(brush)
		qp.drawRect(10, 195, 90, 60)

		brush = QBrush(Qt.VerPattern)
		qp.setBrush(brush)
		qp.drawRect(130, 195, 90, 60)

		brush = QBrush(Qt.BDiagPattern)
		qp.setBrush(brush)
		qp.drawRect(250, 195, 90, 60)
                         		
if __name__ == '__main__':
	app = QApplication(sys.argv)
	demo = Drawing()
	demo.show()
	sys.exit(app.exec_())

使用展示

后记

画刷QBrush，主要用来填充。