/* -*- c-file-style: "gnu"; indent-tabs-mode: nil -*- */
/*
 * Ruby Cairo Binding
 *
 * $Author: kou $
 * $Date: 2007/03/06 12:17:34 $
 *
 * Copyright 2005 Øyvind Kolås <pippin@freedesktop.org>
 * Copyright 2004-2005 MenTaLguY <mental@rydia.com>
 *
 * This file is made available under the same terms as Ruby
 *
 */

#include "rb_cairo.h"

VALUE rb_cCairo_TextExtents;

#define _SELF(self)  (RVAL2CRTEXTEXTENTS(self))

cairo_text_extents_t *
rb_cairo_text_extents_from_ruby_object (VALUE obj)
{
  cairo_text_extents_t *extents;
  if (!RTEST (rb_obj_is_kind_of (obj, rb_cCairo_TextExtents)))
    {
      rb_raise (rb_eTypeError, "not a cairo text_extents");
    }
  Data_Get_Struct (obj, cairo_text_extents_t, extents);
  return extents;
}

VALUE
rb_cairo_text_extents_to_ruby_object (cairo_text_extents_t *extents)
{
  if (extents)
    {
      cairo_text_extents_t *new_extents = ALLOC (cairo_text_extents_t);
      *new_extents = *extents;
      return Data_Wrap_Struct (rb_cCairo_TextExtents, NULL, -1, new_extents);
    }
  else
    {
      return Qnil;
    }
}


static VALUE
cr_text_extents_x_bearing (VALUE self)
{
  return rb_float_new (_SELF(self)->x_bearing);
}

static VALUE
cr_text_extents_y_bearing (VALUE self)
{
  return rb_float_new (_SELF(self)->y_bearing);
}

static VALUE
cr_text_extents_width (VALUE self)
{
  return rb_float_new (_SELF(self)->width);
}

static VALUE
cr_text_extents_height (VALUE self)
{
  return rb_float_new (_SELF(self)->height);
}

static VALUE
cr_text_extents_x_advance (VALUE self)
{
  return rb_float_new (_SELF(self)->x_advance);
}

static VALUE
cr_text_extents_y_advance (VALUE self)
{
  return rb_float_new (_SELF(self)->y_advance);
}

static VALUE
cr_text_extents_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_cat2 (ret, "x_bearing=");
  rb_str_concat (ret, rb_inspect (cr_text_extents_x_bearing (self)));
  rb_str_cat2 (ret, ", ");
  rb_str_cat2 (ret, "y_bearing=");
  rb_str_concat (ret, rb_inspect (cr_text_extents_y_bearing (self)));
  rb_str_cat2 (ret, ", ");
  rb_str_cat2 (ret, "width=");
  rb_str_concat (ret, rb_inspect (cr_text_extents_width (self)));
  rb_str_cat2 (ret, ", ");
  rb_str_cat2 (ret, "height=");
  rb_str_concat (ret, rb_inspect (cr_text_extents_height (self)));
  rb_str_cat2 (ret, ", ");
  rb_str_cat2 (ret, "x_advance=");
  rb_str_concat (ret, rb_inspect (cr_text_extents_x_advance (self)));
  rb_str_cat2 (ret, ", ");
  rb_str_cat2 (ret, "y_advance=");
  rb_str_concat (ret, rb_inspect (cr_text_extents_y_advance (self)));
  rb_str_cat2 (ret, ">");
                 
  return ret;
}


void
Init_cairo_text_extents (void)
{
  rb_cCairo_TextExtents =
    rb_define_class_under (rb_mCairo, "TextExtents", rb_cObject);

  rb_define_method (rb_cCairo_TextExtents, "x_bearing",
                    cr_text_extents_x_bearing, 0);
  rb_define_method (rb_cCairo_TextExtents, "y_bearing",
                    cr_text_extents_y_bearing, 0);
  rb_define_method (rb_cCairo_TextExtents, "width",
                    cr_text_extents_width, 0);
  rb_define_method (rb_cCairo_TextExtents, "height",
                    cr_text_extents_height, 0);
  rb_define_method (rb_cCairo_TextExtents, "x_advance",
                    cr_text_extents_x_advance, 0);
  rb_define_method (rb_cCairo_TextExtents, "y_advance",
                    cr_text_extents_y_advance, 0);

  rb_define_method (rb_cCairo_TextExtents, "to_s",
                    cr_text_extents_to_s, 0);
}