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;

class Matrix : Boxed {

void concat(pango.matrix.Matrix newMatrix);

pango.matrix.Matrix copy();

double getFontScaleFactor();

void getFontScaleFactors(double xscale, double yscale);

double getSlantRatio();

void rotate(double degrees);

void scale(double scaleX, double scaleY);

void transformDistance(double dx, double dy);

void transformPixelRectangle(pango.types.Rectangle rect);

void transformPoint(double x, double y);

void transformRectangle(pango.types.Rectangle rect);

void translate(double tx, double ty);

}

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.

Inherited Members

From Boxed

cInstancePtr void* cInstancePtr;: Pointer to the C boxed value
getType GType getType(): Get the GType of this boxed type.
gType GType gType [@property getter]: Boxed GType property.
self Boxed self(): Convenience method to return this cast to a type. For use in D with statements.
copy_ void* copy_(): Make a copy of the wrapped C boxed data.
boxedCopy void* boxedCopy(void* cBoxed): Copy a C boxed value using g_boxed_copy.
boxedFree void boxedFree(void* cBoxed): Free a C boxed value using g_boxed_free.

pango matrix classes

Matrix