QtGui.QBrush

The QtGui.QBrush is an elementary graphics object. It is used to paint the background of graphics shapes, such as rectangles, ellipses, or polygons. A brush can be of three different types: a predefined brush, a gradient, or a texture pattern.

#!/usr/bin/python
# -*- coding: utf-8 -*-
 
"""
ZetCode PyQt4 tutorial 
 
This example draws 9 rectangles in different
brush styles.
 
author: Jan Bodnar
website: zetcode.com
last edited: September 2011
"""
 
import sys
from PyQt4 import QtGui, QtCore
 
class Example(QtGui.QWidget):
 
    def __init__(self):
        super(Example, self).__init__()
 
        self.initUI()
 
    def initUI(self):      
 
        self.setGeometry(300, 300, 355, 280)
        self.setWindowTitle('Brushes')
        self.show()
 
    def paintEvent(self, e):
 
        qp = QtGui.QPainter()
        qp.begin(self)
        self.drawBrushes(qp)
        qp.end()
 
    def drawBrushes(self, qp):
 
        brush = QtGui.QBrush(QtCore.Qt.SolidPattern)
        qp.setBrush(brush)
        qp.drawRect(10, 15, 90, 60)
 
        brush.setStyle(QtCore.Qt.Dense1Pattern)
        qp.setBrush(brush)
        qp.drawRect(130, 15, 90, 60)
 
        brush.setStyle(QtCore.Qt.Dense2Pattern)
        qp.setBrush(brush)
        qp.drawRect(250, 15, 90, 60)
 
        brush.setStyle(QtCore.Qt.Dense3Pattern)
        qp.setBrush(brush)
        qp.drawRect(10, 105, 90, 60)
 
        brush.setStyle(QtCore.Qt.DiagCrossPattern)
        qp.setBrush(brush)
        qp.drawRect(10, 105, 90, 60)
 
        brush.setStyle(QtCore.Qt.Dense5Pattern)
        qp.setBrush(brush)
        qp.drawRect(130, 105, 90, 60)
 
        brush.setStyle(QtCore.Qt.Dense6Pattern)
        qp.setBrush(brush)
        qp.drawRect(250, 105, 90, 60)
 
        brush.setStyle(QtCore.Qt.HorPattern)
        qp.setBrush(brush)
        qp.drawRect(10, 195, 90, 60)
 
        brush.setStyle(QtCore.Qt.VerPattern)
        qp.setBrush(brush)
        qp.drawRect(130, 195, 90, 60)
 
        brush.setStyle(QtCore.Qt.BDiagPattern)
        qp.setBrush(brush)
        qp.drawRect(250, 195, 90, 60)
 
def main():
 
    app = QtGui.QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())
 
if __name__ == '__main__':
    main()

In our example, we draw nine different rectangles.

brush = QtGui.QBrush(QtCore.Qt.SolidPattern)
qp.setBrush(brush)
qp.drawRect(10, 15, 90, 60)

We define a brush object. We set it to the painter object and draw the rectangle by calling thedrawRect() method.

Figure: Brushes