Struct
PangoMatrix
since: 1.6
Description [src]
struct PangoMatrix {
double xx;
double xy;
double yx;
double yy;
double x0;
double y0;
}
A PangoMatrix specifies a transformation between user-space
and device coordinates.
The transformation is given by
x_device = x_user * matrix->xx + y_user * matrix->xy + matrix->x0;
y_device = x_user * matrix->yx + y_user * matrix->yy + matrix->y0;
Structure members
xx1st component of the transformation matrix.
xy2nd component of the transformation matrix.
yx3rd component of the transformation matrix.
yy4th component of the transformation matrix.
x0X translation.
y0Y translation.
Available since: 1.6
Instance methods
pango_matrix_concat
Changes the transformation represented by matrix to be the
transformation given by first applying transformation
given by new_matrix then applying the original transformation.
since: 1.6
pango_matrix_get_font_scale_factor
Returns the scale factor of a matrix on the height of the font.
since: 1.12
pango_matrix_get_font_scale_factors
Calculates the scale factor of a matrix on the width and height of the font.
since: 1.38
pango_matrix_rotate
Changes the transformation represented by matrix to be the
transformation given by first rotating by degrees degrees
counter-clockwise then applying the original transformation.
since: 1.6
pango_matrix_scale
Changes the transformation represented by matrix to be the
transformation given by first scaling by sx in the X direction and sy in the Y direction then applying the original transformation.
since: 1.6
pango_matrix_transform_pixel_rectangle
First transforms the rect using matrix, then calculates the bounding box
of the transformed rectangle.
since: 1.16
pango_matrix_transform_rectangle
First transforms rect using matrix, then calculates the bounding box
of the transformed rectangle.
since: 1.16
pango_matrix_translate
Changes the transformation represented by matrix to be the
transformation given by first translating by (tx, ty)
then applying the original transformation.
since: 1.6