Matrix

A pango.matrix.Matrix 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;

Members

Functions

concat void concat(pango.matrix.Matrix newMatrix): Changes the transformation represented by matrix to be the transformation given by first applying transformation given by new_matrix then applying the original transformation.
copy pango.matrix.Matrix copy(): Copies a pango.matrix.Matrix.
getFontScaleFactor double getFontScaleFactor(): Returns the scale factor of a matrix on the height of the font.
getFontScaleFactors void getFontScaleFactors(double xscale, double yscale): Calculates the scale factor of a matrix on the width and height of the font.
getSlantRatio double getSlantRatio(): Gets the slant ratio of a matrix.
rotate void rotate(double degrees): Changes the transformation represented by matrix to be the transformation given by first rotating by degrees degrees counter-clockwise then applying the original transformation.
scale void scale(double scaleX, double scaleY): 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.
transformDistance void transformDistance(double dx, double dy): Transforms the distance vector (dx,dy) by matrix.
transformPixelRectangle void transformPixelRectangle(pango.types.Rectangle rect): First transforms the rect using matrix, then calculates the bounding box of the transformed rectangle.
transformPoint void transformPoint(double x, double y): Transforms the point (x, y) by matrix.
transformRectangle void transformRectangle(pango.types.Rectangle rect): First transforms rect using matrix, then calculates the bounding box of the transformed rectangle.
translate void translate(double tx, double ty): Changes the transformation represented by matrix to be the transformation given by first translating by (tx, ty) then applying the original transformation.

Properties

_gType GType _gType [@property getter]

Static functions

_getGType GType _getGType()

Variables

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

pango matrix structs

Matrix