C++ cairo_font_options_status函数代码示例

static VALUE
cr_get_font_options (VALUE self)
{
  cairo_font_options_t *options = cairo_font_options_create ();
  rb_cairo_check_status (cairo_font_options_status (options));
  cairo_get_font_options (_SELF, options);
  rb_cairo_check_status (cairo_font_options_status (options));
  return CRFONTOPTIONS2RVAL (options);
}

static cairo_test_status_t
test_cairo_surface_get_font_options (cairo_surface_t *surface)
{
    cairo_font_options_t *options;
    cairo_status_t status;

    options = cairo_font_options_create ();
    if (likely (!cairo_font_options_status (options)))
        cairo_surface_get_font_options (surface, options);
    status = cairo_font_options_status (options);
    cairo_font_options_destroy (options);
    return status ? CAIRO_TEST_ERROR : CAIRO_TEST_SUCCESS;
}

/**
 * cairo_font_options_get_subpixel_order:
 * @options: a #cairo_font_options_t
 *
 * Gets the subpixel order for the font options object.
 * See the documentation for #cairo_subpixel_order_t for full details.
 *
 * Return value: the subpixel order for the font options object
 **/
cairo_subpixel_order_t
cairo_font_options_get_subpixel_order (const cairo_font_options_t *options)
{
    if (cairo_font_options_status ((cairo_font_options_t *) options))
	return CAIRO_SUBPIXEL_ORDER_DEFAULT;

    return options->subpixel_order;
}

/**
 * cairo_font_options_destroy:
 * @options: a #cairo_font_options_t
 *
 * Destroys a #cairo_font_options_t object created with
 * cairo_font_options_create() or cairo_font_options_copy().
 **/
void
cairo_font_options_destroy (cairo_font_options_t *options)
{
    if (cairo_font_options_status (options))
	return;

    free (options);
}

/**
 * _cairo_font_options_get_lcd_filter:
 * @options: a #cairo_font_options_t
 *
 * Gets the LCD filter for the font options object.
 * See the documentation for #cairo_lcd_filter_t for full details.
 *
 * Return value: the LCD filter for the font options object
 *
 * Since: 1.8
 **/
cairo_lcd_filter_t
_cairo_font_options_get_lcd_filter (const cairo_font_options_t *options)
{
    if (cairo_font_options_status ((cairo_font_options_t *) options))
	return CAIRO_LCD_FILTER_DEFAULT;

    return options->lcd_filter;
}

/**
 * cairo_font_options_get_antialias:
 * @options: a #cairo_font_options_t
 *
 * Gets the antialiasing mode for the font options object.
 *
 * Return value: the antialiasing mode
 **/
cairo_antialias_t
cairo_font_options_get_antialias (const cairo_font_options_t *options)
{
    if (cairo_font_options_status ((cairo_font_options_t *) options))
	return CAIRO_ANTIALIAS_DEFAULT;

    return options->antialias;
}

/**
 * cairo_font_options_get_hint_style:
 * @options: a #cairo_font_options_t
 *
 * Gets the hint style for font outlines for the font options object.
 * See the documentation for #cairo_hint_style_t for full details.
 *
 * Return value: the hint style for the font options object
 **/
cairo_hint_style_t
cairo_font_options_get_hint_style (const cairo_font_options_t *options)
{
    if (cairo_font_options_status ((cairo_font_options_t *) options))
	return CAIRO_HINT_STYLE_DEFAULT;

    return options->hint_style;
}

/**
 * _cairo_font_options_get_round_glyph_positions:
 * @options: a #cairo_font_options_t
 *
 * Gets the glyph position rounding option for the font options object.
 *
 * Return value: The round glyph posistions flag for the font options object.
 *
 * Since: 1.12
 **/
cairo_round_glyph_positions_t
_cairo_font_options_get_round_glyph_positions (const cairo_font_options_t *options)
{
    if (cairo_font_options_status ((cairo_font_options_t *) options))
	return CAIRO_ROUND_GLYPH_POS_DEFAULT;

    return options->round_glyph_positions;
}

/**
 * cairo_font_options_get_hint_metrics:
 * @options: a #cairo_font_options_t
 *
 * Gets the metrics hinting mode for the font options object.
 * See the documentation for #cairo_hint_metrics_t for full details.
 *
 * Return value: the metrics hinting mode for the font options object
 **/
cairo_hint_metrics_t
cairo_font_options_get_hint_metrics (const cairo_font_options_t *options)
{
    if (cairo_font_options_status ((cairo_font_options_t *) options))
	return CAIRO_HINT_METRICS_DEFAULT;

    return options->hint_metrics;
}

/**
 * cairo_font_options_equal:
 * @options: a #cairo_font_options_t
 * @other: another #cairo_font_options_t
 *
 * Compares two font options objects for equality.
 *
 * Return value: %TRUE if all fields of the two font options objects match.
 *	Note that this function will return %FALSE if either object is in
 *	error.
 **/
cairo_bool_t
cairo_font_options_equal (const cairo_font_options_t *options,
			  const cairo_font_options_t *other)
{
    if (cairo_font_options_status ((cairo_font_options_t *) options))
	return FALSE;
    if (cairo_font_options_status ((cairo_font_options_t *) other))
	return FALSE;

    if (options == other)
	return TRUE;

    return (options->antialias == other->antialias &&
	    options->subpixel_order == other->subpixel_order &&
	    options->hint_style == other->hint_style &&
	    options->hint_metrics == other->hint_metrics);
}

/**
 * cairo_font_options_set_subpixel_order:
 * @options: a #cairo_font_options_t
 * @subpixel_order: the new subpixel order
 *
 * Sets the subpixel order for the font options object. The subpixel
 * order specifies the order of color elements within each pixel on
 * the display device when rendering with an antialiasing mode of
 * %CAIRO_ANTIALIAS_SUBPIXEL. See the documentation for
 * #cairo_subpixel_order_t for full details.
 **/
void
cairo_font_options_set_subpixel_order (cairo_font_options_t   *options,
				       cairo_subpixel_order_t  subpixel_order)
{
    if (cairo_font_options_status (options))
	return;

    options->subpixel_order = subpixel_order;
}

/**
 * cairo_font_options_set_antialias:
 * @options: a #cairo_font_options_t
 * @antialias: the new antialiasing mode
 *
 * Sets the antialiasing mode for the font options object. This
 * specifies the type of antialiasing to do when rendering text.
 **/
void
cairo_font_options_set_antialias (cairo_font_options_t *options,
				  cairo_antialias_t     antialias)
{
    if (cairo_font_options_status (options))
	return;

    options->antialias = antialias;
}

/**
 * _cairo_font_options_set_round_glyph_positions:
 * @options: a #cairo_font_options_t
 * @round: the new rounding value
 *
 * Sets the rounding options for the font options object. If rounding is set, a
 * glyph's position will be rounded to integer values.
 *
 * Since: 1.12
 **/
void
_cairo_font_options_set_round_glyph_positions (cairo_font_options_t *options,
					       cairo_round_glyph_positions_t  round)
{
    if (cairo_font_options_status (options))
	return;

    options->round_glyph_positions = round;
}

/**
 * cairo_font_options_set_hint_style:
 * @options: a #cairo_font_options_t
 * @hint_style: the new hint style
 *
 * Sets the hint style for font outlines for the font options object.
 * This controls whether to fit font outlines to the pixel grid,
 * and if so, whether to optimize for fidelity or contrast.
 * See the documentation for #cairo_hint_style_t for full details.
 **/
void
cairo_font_options_set_hint_style (cairo_font_options_t *options,
				   cairo_hint_style_t    hint_style)
{
    if (cairo_font_options_status (options))
	return;

    options->hint_style = hint_style;
}

/**
 * cairo_font_options_set_hint_metrics:
 * @options: a #cairo_font_options_t
 * @hint_metrics: the new metrics hinting mode
 *
 * Sets the metrics hinting mode for the font options object. This
 * controls whether metrics are quantized to integer values in
 * device units.
 * See the documentation for #cairo_hint_metrics_t for full details.
 **/
void
cairo_font_options_set_hint_metrics (cairo_font_options_t *options,
				     cairo_hint_metrics_t  hint_metrics)
{
    if (cairo_font_options_status (options))
	return;

    options->hint_metrics = hint_metrics;
}