pythonpyside2

PySide2: Load SVG from Variable rather than from file

I want to display an svg file using PySide. But I would prefer not having to create a file.svg and then load it using QSvgWidget

Rather I just have the file contents of the file.svg contents already stored in a variable as a string.

How would I go about directly loading the SVG from the variable rather than form the file.

Best

Solution

  • You need to convert the string to a QByteArray.

    From the QSvgWidget.load documentation:

    PySide6.QtSvgWidgets.QSvgWidget.load(contents)

    PARAMETERS:

    contents – PySide6.QtCore.QByteArray

    Here's a full demo:

    from PySide6.QtWidgets import QApplication
from PySide6.QtSvgWidgets import QSvgWidget
from PySide6.QtCore import QByteArray
import sys

svg_string="""<svg width="50" height="50">
    <circle cx="25" cy="25" r="20"/>
</svg>"""
svg_bytes = QByteArray(svg_string)
app = QApplication(sys.argv)
svgWidget = QSvgWidget()
svgWidget.renderer().load(svg_bytes)
svgWidget.show()
sys.exit(app.exec_())