PyQT5 Comandos de Dibujo

Usar el evento PaintEvent para pintar texto, imágenes y figuras.

Author: devcarmelo

04-dibujar/image/image.jpg

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+__author__ = 'Carmelo Marin Abrego'
+
+import sys
+
+from PyQt5.QtGui import QPainter, QFont, QColor, QPixmap, QPen, QBrush
+from PyQt5.QtCore import Qt, QRect, QPoint
+from PyQt5.QtWidgets import QApplication, QWidget, QPushButton
+
+
+class Example(QWidget):
+    def __init__(self):
+        super().__init__()
+        self.initUI()
+
+    def initUI(self):
+        self.resize(1280, 720)
+        self.setWindowTitle('PyQT5 Paint Event')
+
+    def paintEvent(self, event):
+        qp = QPainter()
+        qp.begin(self)
+        self.drawImage(event, qp, 'image/image.jpg')
+        self.drawText(event, qp, 'Tutor de Programación\nPintar con PyQT5')
+        self.drawPoint(event, qp)
+        self.drawLine(event, qp)
+        self.drawShape(event, qp)
+        qp.end()
+
+    def drawShape(self, event, qp):
+        pen = QPen(Qt.yellow)
+        pen.setWidth(3)
+        # rellenar fondo con patron de imagen
+        brush = QBrush()
+        brush.setTexture(QPixmap('image/small_image.jpg'))
+        # establecer el QBrush
+        qp.setBrush(brush)
+        qp.setPen(pen)
+        qp.drawRoundedRect(QRect(50, 50, 200, 150), 15, 15)
+        # utilizar un patron predefinido
+        brush.setStyle(Qt.DiagCrossPattern)
+        qp.setBrush(brush)
+        qp.drawEllipse(350, 50, 150, 150)
+
+    def drawPoint(self, event, qp):
+        pen = QPen(Qt.red)
+        pen.setWidth(10)
+
+        qp.setPen(pen)
+        qp.drawPoint(event.rect().width() / 2, event.rect().height() / 2)
+
+    def drawLine(self, event, qp):
+        pen = QPen()
+        pen.setWidth(3)
+        pen.setColor(QColor(128, 250, 25, 255))
+        pen.setStyle(Qt.DotLine)
+
+        qp.setPen(pen)
+        qp.drawLine(QPoint(10, 10), QPoint(1280 - 10, 10))
+
+        color = QColor()
+        color.setNamedColor('#c2h6b4')
+
+        pen.setColor(color)
+        pen.setStyle(Qt.DashLine)
+
+        qp.setPen(pen)
+        qp.drawLine(QPoint(10, 10 + 20), QPoint(1280 - 10, 10 + 20))
+
+
+    def drawImage(self, event, qp, image):
+        pixmap = QPixmap(image)
+        qp.drawPixmap(event.rect(), pixmap)
+        # qp.drawPixmap(QRect(0, 0, 1280, 720), pixmap)
+
+    def drawText(self, event, qp, text):
+        qp.setPen(QColor(0, 255, 255))
+        qp.setFont(QFont('Consolas', 48))
+        qp.drawText(event.rect(), Qt.AlignCenter, text)
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    win = Example()
+    win.show()
+    sys.exit(app.exec_())
+
+