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둥근 직사각형 그리기 (drawRoundedRect)

drawRoundedRect()는 모서리가 둥근 직사각형을 그릴 때 사용합니다.

drawRoundedRect()에 x, y, width, height, x-radius, y-radius의 순서로 숫자를 입력합니다.

아래 그림을 참고하세요.

예제

## Ex 8-4. 둥근 직사각형 그리기 (drawRoundedRect).

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


class MyApp(QWidget):

    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        self.setGeometry(300, 300, 400, 300)
        self.setWindowTitle('drawRoundedRect')
        self.show()

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

    def draw_roundedrect(self, qp):
        qp.setPen(QPen(Qt.black, 3))

        qp.drawRoundedRect(20, 20, 100, 100, 0, 0)
        qp.drawText(40, 140, 'radius: 0')

        qp.drawRoundedRect(150, 20, 100, 100, 10, 10)
        qp.drawText(170, 140, 'radius: 10')

        qp.drawRoundedRect(280, 20, 100, 100, 20, 20)
        qp.drawText(300, 140, 'radius: 20')

        qp.drawRoundedRect(20, 160, 100, 100, 30, 30)
        qp.drawText(40, 280, 'radius: 30')

        qp.drawRoundedRect(150, 160, 100, 100, 40, 40)
        qp.drawText(170, 280, 'radius: 40')

        qp.drawRoundedRect(280, 160, 100, 100, 50, 50)
        qp.drawText(300, 280, 'radius: 50')


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = MyApp()
    sys.exit(app.exec_())

각기 다른 둥글기를 갖는 둥근 직사각형을 그렸습니다.

x-radius, y-radius가 0, 0인 경우 직사각형이 되고, 너비, 높이의 절반인 경우 원 (또는 타원)이 됩니다.

결과는 아래와 같습니다.

그림 8-4-1. 둥근 직사각형 그리기1.

def draw_roundedrect(self, qp):
    brush = QBrush(Qt.SolidPattern)
    qp.setBrush(brush)
    qp.drawRoundedRect(20, 10, 100, 60, 15, 15)
    qp.drawText(20, 90, 'Qt.SolidPattern')

    brush = QBrush(Qt.Dense1Pattern)
    qp.setBrush(brush)
    qp.drawRoundedRect(150, 10, 100, 60, 15, 15)
    qp.drawText(150, 90, 'Qt.Dense1Pattern')

    brush = QBrush(Qt.Dense2Pattern)
    qp.setBrush(brush)
    qp.drawRoundedRect(280, 10, 100, 60, 15, 15)
    qp.drawText(280, 90, 'Qt.Dense2Pattern')

    brush = QBrush(Qt.HorPattern)
    qp.setBrush(brush)
    qp.drawRoundedRect(20, 110, 100, 60, 15, 15)
    qp.drawText(20, 190, 'Qt.HorPattern')

    brush = QBrush(Qt.VerPattern)
    qp.setBrush(brush)
    qp.drawRoundedRect(150, 110, 100, 60, 15, 15)
    qp.drawText(150, 190, 'Qt.VerPattern')

    brush = QBrush(Qt.CrossPattern)
    qp.setBrush(brush)
    qp.drawRoundedRect(280, 110, 100, 60, 15, 15)
    qp.drawText(280, 190, 'Qt.CrossPattern')

    brush = QBrush(Qt.BDiagPattern)
    qp.setBrush(brush)
    qp.drawRoundedRect(20, 210, 100, 60, 15, 15)
    qp.drawText(20, 290, 'Qt.BDiagPattern')

    brush = QBrush(Qt.FDiagPattern)
    qp.setBrush(brush)
    qp.drawRoundedRect(150, 210, 100, 60, 15, 15)
    qp.drawText(150, 290, 'Qt.FDiagPattern')

    brush = QBrush(Qt.DiagCrossPattern)
    qp.setBrush(brush)
    qp.drawRoundedRect(280, 210, 100, 60, 15, 15)
    qp.drawText(280, 290, 'Qt.DiagCrossPattern')

drawRect() 예제에서와 마찬가지로 QBrush()와 setBrush()를 이용해서 둥근 직사각형의 채우기 패턴을 설정할 수 있습니다.

결과는 아래와 같습니다.

그림 8-4-2. 둥근 직사각형 그리기2.

이전글/다음글

이전글 : 직사각형 그리기 (drawRect)

다음글 : 다각형 그리기 (drawPolygon)

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