get_line_yrange

Description:

public void get_line_yrange (uint line, GutterRendererAlignmentMode mode, out int y, out int height)

Gets the Y range for a line based on mode.

The value for y is relative to the renderers widget coordinates.

this	a GutterLines
line	a line number starting from zero
mode	a GutterRendererAlignmentMode
y	a location for the Y position in widget coordinates
height	the line height based on `mode`