Achtergrond-patronen Brushes

Op deze pagina:

Brushes worden gebruikt om de achtergrond mee te schilderen, het zijn patronen.

#!/usr/bin/python3
# -*- coding: utf-8 -*-

import sys
from PyQt5 import QtCore
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QWidget
from PyQt5.QtGui import QPainter, QBrush

class Venster(QWidget):

    def __init__(self):
        super(Venster, self).__init__()

        self.initUI()

    def initUI(self):

        self.setGeometry(400, 400, 390, 280)
        self.setWindowTitle('Patronen')
        self.show()

    def paintEvent(self, e):

        qp = QPainter()
        qp.begin(self)
        self.drawBrushes(qp)
        qp.end()

    def drawBrushes(self, qp):

        lengte = 100
        breedte = 60
        k1 = 20
        k2 = 150
        k3 = 270
        r1 = 20
        r2 = 110
        r3 = 200

        brush = QBrush(QtCore.Qt.SolidPattern)
        qp.setBrush(brush)
        qp.drawRect(k1, r1, lengte, breedte)

        brush.setStyle(QtCore.Qt.Dense1Pattern)
        qp.setBrush(brush)
        qp.drawRect(k2, r1, lengte, breedte)

        brush.setStyle(QtCore.Qt.Dense2Pattern)
        qp.setBrush(brush)
        qp.drawRect(k3, r1, lengte, breedte)

        brush.setStyle(QtCore.Qt.Dense3Pattern)
        qp.setBrush(brush)
        qp.drawRect(k1, r2, lengte, breedte)

        brush.setStyle(QtCore.Qt.DiagCrossPattern)
        qp.setBrush(brush)
        qp.drawRect(k1, r2, lengte, breedte)

        brush.setStyle(QtCore.Qt.Dense5Pattern)
        qp.setBrush(brush)
        qp.drawRect(k2, r2, lengte, breedte)

        brush.setStyle(QtCore.Qt.Dense6Pattern)
        qp.setBrush(brush)
        qp.drawRect(k3, r2, lengte, breedte)

        brush.setStyle(QtCore.Qt.HorPattern)
        qp.setBrush(brush)
        qp.drawRect(k1, r3, lengte, breedte)

        brush.setStyle(QtCore.Qt.VerPattern)
        qp.setBrush(brush)
        qp.drawRect(k2, r3, lengte, breedte)

        brush.setStyle(QtCore.Qt.BDiagPattern)
        qp.setBrush(brush)
        qp.drawRect(k3, r3, lengte, breedte)

def main():

    app = QApplication(sys.argv)
    window = Venster()
    sys.exit(app.exec())

if __name__ == '__main__':
    main()

Verwante artikelen