pangoMatrixTransformPixelRectangle: pangoMatrixTransformPixelRectangle
Description
First transforms the rect using matrix, then calculates the bounding box
of the transformed rectangle. The rectangle should be in device units
(pixels).Usage
pangoMatrixTransformPixelRectangle(object, rect)
Details
This function is useful for example when you want to draw a rotated
PangoLayout to an image buffer, and want to know how large the image
should be and how much you should shift the layout when rendering.
For better accuracy, you should use pangoMatrixTransformRectangle on
original rectangle in Pango units and convert to pixels afterward
using pangoExtentsToPixels's first argument.
Since 1.16