pywidgets-ext

This is a custom widget module for PySide6 that makes it easy to manage and use during development.

Installation

Install using pip:

pip install pywidgets-ext

Install using poetry (recommended):

poetry add pywidgets-ext

Usage

from pywidgets_ext import *

Modules

PyFigureCanvas

PyFigureCanvas is a custom widget inheriting from FigureCanvasQTAgg. It's designed to display matplotlib charts. A unique feature is its magnified preview when the mouse hovers over it, which hides when the mouse leaves. The magnified view adjusts according to the screen size and mouse position. Additionally, PyFigureCanvas offers methods to get chart dimensions, calculate data ratio, and adjust graphics view size on resize.

To see it in action:

python -m pywidgets_ext.PyFigureCanvas

Sample code:

import matplotlib.pyplot as plt
from PySide6.QtWidgets import QMainWindow, QApplication
from pywidgets_ext import PyFigureCanvas


class MainWindow(QMainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()
        fig, ax = self.create_sample_plot()
        self.canvas = PyFigureCanvas(fig)
        self.setup_main_window()

    def create_sample_plot(self):
        fig, ax = plt.subplots(figsize=(5, 5))
        ax.plot([0, 1, 2, 3, 4], [0, 1, 4, 9, 16], label="y = x^2")
        ax.set_title("Sample Plot")
        ax.set_xlabel("x")
        ax.set_ylabel("y")
        ax.legend()
        return fig, ax

    def setup_main_window(self):
        self.setCentralWidget(self.canvas)
        self.setWindowTitle("PyFigureCanvas Demo")
        self.resize(600, 600)


if __name__ == "__main__":
    app = QApplication([])
    window = MainWindow()
    window.show()
    app.exec()

PyGraphicsView

PyGraphicsView is a view class inheriting from QGraphicsView. It lets users click and drag in the scene to draw and adjust resizable rectangular regions (ResizableRect). It offers specific drawing and optimization options for better performance and visuals. Users can select rectangles and delete them using the Delete key. Also, it auto-adjusts rectangles when the scene size changes.

To see it in action:

python -m pywidgets_ext.PyGraphicsView

Sample code:

from PySide6.QtCore import Qt, QRectF, QPointF
from PySide6.QtWidgets import QApplication, QMainWindow
from pywidgets_ext import PyGraphicsView


class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.view = PyGraphicsView()
        self.view.setSceneRect(0, 0, 500, 500)
        self.setCentralWidget(self.view)
        self.setGeometry(100, 100, 800, 600)
        self.setWindowTitle("PyGraphicsView Example")


if __name__ == "__main__":
    app = QApplication([])
    window = MainWindow()
    window.show()
    app.exec()

Contributions

Contributions of any kind are welcome! Make sure to read the Contribution Guide first.

License

This project is under the MIT License.

Author

• Leo - Github