showErrorUnderline
fn
void showErrorUnderline(cairo.context.Context cr, double x, double y, double width, double height)Draw a squiggly line in the specified cairo context that approximately covers the given rectangle in the style of an underline used to indicate a spelling error.
The width of the underline is rounded to an integer number of up/down segments and the resulting rectangle is centered in the original rectangle.
Parameters
cr | a Cairo context |
x | The X coordinate of one corner of the rectangle |
y | The Y coordinate of one corner of the rectangle |
width | Non-negative width of the rectangle |
height | Non-negative height of the rectangle |