PySide6.QtCanvasPainter.QCanvasLinearGradient

class QCanvasLinearGradient

QCanvasLinearGradient is a brush for linear gradient painting.

Details

Liner gradient interpolate colors between start and end points along a linear pattern, so horizontally, vertically or diagonally. The gradient starts from startPosition() and ends to endPosition(). Outside this area, the colors are the starting and the ending color.

../../_images/qclineargradient-gallery.webp

Here is a simple example:

qclineargradient-example1

 
QRectF rect1(0, 0, 200, 200);
QCanvasLinearGradient lg(rect1.topLeft(),
                    rect1.bottomRight());
lg.setColorAt(0.0, "#1a2a6c");
lg.setColorAt(0.5, "#b21f1f");
lg.setColorAt(1.0, "#fdbb2d");
p->setFillStyle(lg);
p->fillRect(rect1);

Inheritance diagram of PySide6.QtCanvasPainter.QCanvasLinearGradient

Synopsis

Methods

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

__init__()

Constructs a default linear gradient. Gradient start color position is (0, 0) and end color position (0, 100). Gradient start color is white (255, 255, 255) and end color transparent black (0, 0, 0, 0).

__init__(start, end)
Parameters:

Constructs a linear gradient. Gradient start color position is start and end color position end. Gradient start color is white (255, 255, 255) and end color transparent black (0, 0, 0, 0).

__init__(startX, startY, endX, endY)
Parameters:

  • startX – float

  • startY – float

  • endX – float

  • endY – float

Constructs a linear gradient. Gradient start color position is (startX, startY) and end color position (endX, endY). Gradient start color is white (255, 255, 255) and end color transparent black (0, 0, 0, 0).

endPosition()
Return type:

QPointF

Returns the end point of linear gradient.

See also

setEndPosition()

setEndPosition(end)
Parameters:

end – QPointF

Sets the end point of linear gradient to end.

setEndPosition(x, y)
Parameters:

  • x – float

  • y – float

Sets the end point of linear gradient to ( x, y).

See also

endPosition()

setStartPosition(start)
Parameters:

start – QPointF

Sets the start point of linear gradient to start.

setStartPosition(x, y)
Parameters:

  • x – float

  • y – float

Sets the start point of linear gradient to ( x, y).

See also

startPosition()

startPosition()
Return type:

QPointF

Returns the start point of linear gradient.