C++ (Cpp) _cairo_arc_path_negative Exemples

Exemple #1

Fichier : cairo-default-context.c Projet : harcharansidhu/indigo

static cairo_status_t
_cairo_default_context_arc (void *abstract_cr,
                            double xc, double yc, double radius,
                            double angle1, double angle2,
                            cairo_bool_t forward)
{
    cairo_default_context_t *cr = abstract_cr;
    cairo_status_t status;

    /* Do nothing, successfully, if radius is <= 0 */
    if (radius <= 0.0) {
        cairo_fixed_t x_fixed, y_fixed;

        _cairo_gstate_user_to_backend (cr->gstate, &xc, &yc);
        x_fixed = _cairo_fixed_from_double (xc);
        y_fixed = _cairo_fixed_from_double (yc);
        status = _cairo_path_fixed_line_to (cr->path, x_fixed, y_fixed);
        if (unlikely (status))
            return status;

        status = _cairo_path_fixed_line_to (cr->path, x_fixed, y_fixed);
        if (unlikely (status))
            return status;

        return CAIRO_STATUS_SUCCESS;
    }

    status = _cairo_default_context_line_to (cr,
             xc + radius * cos (angle1),
             yc + radius * sin (angle1));

    if (unlikely (status))
        return status;

    if (forward)
        _cairo_arc_path (&cr->base, xc, yc, radius, angle1, angle2);
    else
        _cairo_arc_path_negative (&cr->base, xc, yc, radius, angle1, angle2);

    return CAIRO_STATUS_SUCCESS; /* any error will have already been set on cr */
}

Exemple #2

Fichier : cairo-skia-context.cpp Projet : Ashod/WinCairoRequirements

static cairo_status_t
_cairo_skia_context_arc (void *abstract_cr,
			 double xc, double yc, double radius,
			 double angle1, double angle2,
			 cairo_bool_t forward)
{
    cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
    cairo_status_t status;

    /* XXX cr->path->arc() */

    /* Do nothing, successfully, if radius is <= 0 */
    if (radius <= 0.0) {
	status = _cairo_skia_context_line_to (cr, xc, yc);
	if (unlikely (status))
	    return status;

	status = _cairo_skia_context_line_to (cr, xc, yc);
	if (unlikely (status))
	    return status;

	return CAIRO_STATUS_SUCCESS;
    }

    status = _cairo_skia_context_line_to (cr,
					  xc + radius * cos (angle1),
					  yc + radius * sin (angle1));

    if (unlikely (status))
	return status;

    if (forward)
	_cairo_arc_path (&cr->base, xc, yc, radius, angle1, angle2);
    else
	_cairo_arc_path_negative (&cr->base, xc, yc, radius, angle1, angle2);

    return CAIRO_STATUS_SUCCESS;
}