pyqt-bounding-box

PyQt bounding box for graphic design software

Requirements

PyQt5 >= 5.8

Setup

python -m pip install pyqt-bounding-box

Feature

• Cursor shape changes properly for position (horizontal/vertical edge, etc.)

• Being able to resize the box horizontally/vertically/diagonally

• Being able to move the box with either mouse cursor or arrow keys

• Being able to change the attribute of the box

Methods Overview

• setLineWidth(self, n: int) - Default width is 3

• setColor(self, color: QColor) - Default color is black

• setStyle(self, style: Qt.PenStyle) - Default style is Qt.DashLine (You can see more about this style in here)

• setWidth(width: int)

• setHeight(height: int)

• setSize(width: int, height: int)

You can use the standard function like setPen(pen: QPen) if you know how to use it, Here's the example:

item = BoundingBox()



pen = QPen()

pen.setStyle(Qt.DashLine)

pen.setWidth(3)

pen.setColor(QColor(0, 0, 0))



item.setPen(pen)

Example

Code Sample

from PyQt5.QtWidgets import QWidget, QGraphicsView, QVBoxLayout, QApplication, QGraphicsScene



from pyqt_bounding_box.boundingBox import BoundingBox





class Example(QWidget):

    def __init__(self):

        super().__init__()

        self.__initUi()



    def __initUi(self):

        view = QGraphicsView()

        self.__scene = QGraphicsScene()

        self.__scene.setSceneRect(0, 0, 400, 400)



        item = BoundingBox()

        # item.setLineWidth(8) If you want to change the edge line width, add the code.

        # item.setColor(QColor(255, 255, 255)) If you want to change the color of the line to white, add the code.

        # item.setStyle(Qt.SolidLine) If you want to change the style of line from dashed to solid line, add the code.

        self.__scene.addItem(item)

        view.setScene(self.__scene)



        lay = QVBoxLayout()

        lay.addWidget(view)



        self.setLayout(lay)





if __name__ == "__main__":

    import sys



    app = QApplication(sys.argv)

    example = Example()

    example.show()

    app.exec_()

Result

https://user-images.githubusercontent.com/55078043/148708740-cd1f0765-7768-44b6-88bb-770e2d34fe12.mp4

See Also

• pyqt-hbounding-box

• pyqt-vbounding-box