Class: Cairo::Matrix

Inherits:
Object
  • Object
show all
Defined in:
lib/cairo.rb,
ext/cairo/rb_cairo_matrix.c

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 69

static VALUE
cr_matrix_initialize (VALUE self,
                      VALUE xx, VALUE yx,
                      VALUE xy, VALUE yy,
                      VALUE x0, VALUE y0)
{
  cairo_matrix_t *matrix = ALLOC (cairo_matrix_t);

  cairo_matrix_init (matrix,
                     NUM2DBL (xx), NUM2DBL (yx),
                     NUM2DBL (xy), NUM2DBL (yy),
                     NUM2DBL (x0), NUM2DBL (y0));
  DATA_PTR (self) = matrix;
  return Qnil;
}

Class Method Details

.identity ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 85

static VALUE
cr_matrix_init_identity (VALUE self)
{
  cairo_matrix_t matrix;
  cairo_matrix_init_identity (&matrix);
  return CRMATRIX2RVAL (&matrix);
}

.rotate ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 109

static VALUE
cr_matrix_init_rotate (VALUE self, VALUE radius)
{
  cairo_matrix_t matrix;
  cairo_matrix_init_rotate (&matrix, NUM2DBL (radius));
  return CRMATRIX2RVAL (&matrix);
}

.scale ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 101

static VALUE
cr_matrix_init_scale (VALUE self, VALUE sx, VALUE sy)
{
  cairo_matrix_t matrix;
  cairo_matrix_init_scale (&matrix, NUM2DBL (sx), NUM2DBL (sy));
  return CRMATRIX2RVAL (&matrix);
}

.translate ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 93

static VALUE
cr_matrix_init_translate (VALUE self, VALUE tx, VALUE ty)
{
  cairo_matrix_t matrix;
  cairo_matrix_init_translate (&matrix, NUM2DBL (tx), NUM2DBL (ty));
  return CRMATRIX2RVAL (&matrix);
}

Instance Method Details

#== ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 301

static VALUE
cr_matrix_equal (VALUE self, VALUE other)
{
  if (!rb_cairo__is_kind_of (other, rb_cCairo_Matrix))
    return Qfalse;

  return rb_funcall (cr_matrix_to_a (self),
                     cr_id_equal, 1,
                     cr_matrix_to_a (other));
}

#clone ⇒ Object 



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# File 'lib/cairo.rb', line 128

def clone
  copy = dup
  copy.freeze if self.frozen?
  copy
end

#dup ⇒ Object 



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# File 'lib/cairo.rb', line 124

def dup
  Matrix.new(*to_a)
end

#identity! ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 117

static VALUE
cr_matrix_identity (VALUE self)
{
  cairo_matrix_init_identity (_SELF);
  return self;
}

#invert ⇒ Object 



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# File 'lib/cairo.rb', line 137

def invert; dup.invert!; end

#invert! ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 145

static VALUE
cr_matrix_invert (VALUE self)
{
  rb_cairo_check_status (cairo_matrix_invert (_SELF));
  return self;
}

#multiply(other) ⇒ Object Also known as: * 



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# File 'lib/cairo.rb', line 138

def multiply(other); dup.multiply!(other); end

#multiply! ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 152

static VALUE
cr_matrix_multiply (VALUE self, VALUE other)
{
  cairo_matrix_multiply (_SELF, _SELF, RVAL2CRMATRIX (other));
  return self;
}

#rotate(radians) ⇒ Object 



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# File 'lib/cairo.rb', line 136

def rotate(radians); dup.rotate!(radians); end

#rotate! ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 138

static VALUE
cr_matrix_rotate (VALUE self, VALUE radians)
{
  cairo_matrix_rotate (_SELF, NUM2DBL (radians));
  return self;
}

#scale(sx, sy) ⇒ Object 



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# File 'lib/cairo.rb', line 135

def scale(sx, sy); dup.scale!(sx, sy); end

#scale! ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 131

static VALUE
cr_matrix_scale (VALUE self, VALUE sx, VALUE sy)
{
  cairo_matrix_scale (_SELF, NUM2DBL (sx), NUM2DBL (sy));
  return self;
}

#set ⇒ Object

Utilities



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# File 'ext/cairo/rb_cairo_matrix.c', line 260

static VALUE
cr_matrix_set (VALUE self,
               VALUE xx, VALUE yx,
               VALUE xy, VALUE yy,
               VALUE x0, VALUE y0)
{
  cairo_matrix_init (_SELF,
                     NUM2DBL (xx), NUM2DBL (yx),
                     NUM2DBL (xy), NUM2DBL (yy),
                     NUM2DBL (x0), NUM2DBL (y0));
  return self;
}

#set_x0 ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 239

static VALUE
cr_matrix_set_x0 (VALUE self, VALUE x0)
{
  _SELF->x0 = NUM2DBL (x0);
  return Qnil;
}

#set_xx ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 187

static VALUE
cr_matrix_set_xx (VALUE self, VALUE xx)
{
  _SELF->xx = NUM2DBL (xx);
  return Qnil;
}

#set_xy ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 213

static VALUE
cr_matrix_set_xy (VALUE self, VALUE xy)
{
  _SELF->xy = NUM2DBL (xy);
  return Qnil;
}

#set_y0 ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 252

static VALUE
cr_matrix_set_y0 (VALUE self, VALUE y0)
{
  _SELF->y0 = NUM2DBL (y0);
  return Qnil;
}

#set_yx ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 200

static VALUE
cr_matrix_set_yx (VALUE self, VALUE yx)
{
  _SELF->yx = NUM2DBL (yx);
  return Qnil;
}

#set_yy ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 226

static VALUE
cr_matrix_set_yy (VALUE self, VALUE yy)
{
  _SELF->yy = NUM2DBL (yy);
  return Qnil;
}

#to_a ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 273

static VALUE
cr_matrix_to_a (VALUE self)
{
  cairo_matrix_t *matrix = _SELF;
  double affine[6];
  affine[0] = matrix->xx;
  affine[1] = matrix->yx;
  affine[2] = matrix->xy;
  affine[3] = matrix->yy;
  affine[4] = matrix->x0;
  affine[5] = matrix->y0;
  return rb_cairo__float_array (affine, 6);
}

#to_s ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 287

static VALUE
cr_matrix_to_s(VALUE self)
{
  VALUE ret;

  ret = rb_str_new2 ("#<");
  rb_str_cat2 (ret, rb_class2name (CLASS_OF (self)));
  rb_str_cat2 (ret, ":");
  rb_str_concat (ret, rb_inspect (cr_matrix_to_a (self)));
  rb_str_cat2 (ret, ">");
  
  return ret;
}

#transform_distance ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 159

static VALUE
cr_matrix_transform_distance (VALUE self, VALUE dx, VALUE dy)
{
  double pair[2];
  pair[0] = NUM2DBL (dx);
  pair[1] = NUM2DBL (dy);
  cairo_matrix_transform_distance (_SELF, pair, pair + 1);
  return rb_cairo__float_array (pair, 2);
}

#transform_point ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 169

static VALUE
cr_matrix_transform_point (VALUE self, VALUE x, VALUE y)
{
  double pair[2];
  pair[0] = NUM2DBL (x);
  pair[1] = NUM2DBL (y);
  cairo_matrix_transform_point (_SELF, pair, pair + 1);
  return rb_cairo__float_array (pair, 2);
}

#translate(tx, ty) ⇒ Object 



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# File 'lib/cairo.rb', line 134

def translate(tx, ty); dup.translate!(tx, ty); end

#translate! ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 124

static VALUE
cr_matrix_translate (VALUE self, VALUE tx, VALUE ty)
{
  cairo_matrix_translate (_SELF, NUM2DBL (tx), NUM2DBL (ty));
  return self;
}

#x0 ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 233

static VALUE
cr_matrix_get_x0 (VALUE self)
{
  return rb_float_new (_SELF->x0);
}

#xx ⇒ Object

Accessors



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# File 'ext/cairo/rb_cairo_matrix.c', line 181

static VALUE
cr_matrix_get_xx (VALUE self)
{
  return rb_float_new (_SELF->xx);
}

#xy ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 207

static VALUE
cr_matrix_get_xy (VALUE self)
{
  return rb_float_new (_SELF->xy);
}

#y0 ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 246

static VALUE
cr_matrix_get_y0 (VALUE self)
{
  return rb_float_new (_SELF->y0);
}

#yx ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 194

static VALUE
cr_matrix_get_yx (VALUE self)
{
  return rb_float_new (_SELF->yx);
}

#yy ⇒ Object 



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# File 'ext/cairo/rb_cairo_matrix.c', line 220

static VALUE
cr_matrix_get_yy (VALUE self)
{
  return rb_float_new (_SELF->yy);
}