GBoxed matrix - cl-cffi-gtk4 API documentation

Package: pango

GBoxed pango:matrix

Declaration

(glib:define-gboxed-cstruct matrix "PangoMatrix"
  (:export t
   :type-initializer "pango_matrix_get_type")
  (xx :double :initform 0.0d0)
  (xy :double :initform 0.0d0)
  (yx :double :initform 0.0d0)
  (yy :double :initform 0.0d0)
  (x0 :double :initform 0.0d0)
  (y0 :double :initform 0.0d0))

Values

xx: 1st component of the transformation matrix.
xy: 2nd component of the transformation matrix.
yx: 3rd component of the transformation matrix.
yy: 4th component of the transformation matrix.
x0: x translation.
y0: y translation.

Details

A structure specifying a transformation between user-space coordinates and device coordinates. The transformation is given by

xdevice = xuser * xx + yuser * xy + x0
ydevice = xuser * yx + yuser * yy + y0

Returned by

pango:matrix-new

pango:matrix-init

pango:matrix-copy

Slot Access Functions

2025-1-3