func (self *Surface) SetFontMatrix(matrix Matrix) { C.cairo_set_font_matrix(self.context, matrix.cairo_matrix_t()) }
//SetFontMatrix sets the current font matrix to m. //The font matrix gives a transformation from the design space of the font //(in this space, the em-square is 1 unit by 1 unit) to user space. // //Originally cairo_set_font_matrix. func (c *Context) SetFontMatrix(m Matrix) *Context { C.cairo_set_font_matrix(c.c, &m.m) return c }