source file of the GNU LilyPond music typesetter
- (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include <cmath>
-using namespace std;
#include "font-metric.hh"
#include "libc-extension.hh"
TODO: naming add/combine.
*/
-LY_DEFINE (ly_translate_stencil_axis, "ly:stencil-translate-axis",
+LY_DEFINE (ly_stencil_translate_axis, "ly:stencil-translate-axis",
3, 0, 0, (SCM stil, SCM amount, SCM axis),
"Return a copy of @var{stil} but translated by @var{amount} in @var{axis} direction.")
{
Stencil *s = unsmob_stencil (stil);
- SCM_ASSERT_TYPE (s, stil, SCM_ARG1, __FUNCTION__, "stencil");
- SCM_ASSERT_TYPE (scm_is_number (amount), amount, SCM_ARG2, __FUNCTION__, "number");
+ LY_ASSERT_SMOB (Stencil, stil, 1);
+ LY_ASSERT_TYPE (scm_is_number, amount, 2);
+ LY_ASSERT_TYPE (is_axis, axis, 3);
Real real_amount = scm_to_double (amount);
-#if 0
- SCM_ASSERT_TYPE (!isinf (real_amount) && !isnan (real_amount),
- amount, SCM_ARG2, __FUNCTION__, "finite number");
-#endif
-
- SCM_ASSERT_TYPE (is_axis (axis), axis, SCM_ARG3, __FUNCTION__, "axis");
-
SCM new_s = s->smobbed_copy ();
Stencil *q = unsmob_stencil (new_s);
q->translate_axis (real_amount, Axis (scm_to_int (axis)));
return new_s;
}
-LY_DEFINE (ly_translate_stencil, "ly:stencil-translate",
+LY_DEFINE (ly_stencil_translate, "ly:stencil-translate",
2, 0, 0, (SCM stil, SCM offset),
"Return a @var{stil}, "
"but translated by @var{offset} (a pair of numbers).")
{
Stencil *s = unsmob_stencil (stil);
- SCM_ASSERT_TYPE (s, stil, SCM_ARG1, __FUNCTION__, "stencil");
- SCM_ASSERT_TYPE (is_number_pair (offset), offset, SCM_ARG2, __FUNCTION__, "number pair");
+ LY_ASSERT_SMOB (Stencil, stil, 1);
+ LY_ASSERT_TYPE (is_number_pair, offset, 2);
Offset o = ly_scm2offset (offset);
SCM new_s = s->smobbed_copy ();
"Return the expression of @var{stil}.")
{
Stencil *s = unsmob_stencil (stil);
- SCM_ASSERT_TYPE (s, stil, SCM_ARG1, __FUNCTION__, "stencil");
+ LY_ASSERT_SMOB (Stencil, stil, 1);
return s->expr ();
}
"@var{axis} direction (0 or 1 for x and y axis respectively).")
{
Stencil *s = unsmob_stencil (stil);
- SCM_ASSERT_TYPE (s, stil, SCM_ARG1, __FUNCTION__, "stencil");
- SCM_ASSERT_TYPE (is_axis (axis), axis, SCM_ARG2, __FUNCTION__, "axis");
+ LY_ASSERT_SMOB (Stencil, stil, 1);
+ LY_ASSERT_TYPE (is_axis, axis, 2);
return ly_interval2scm (s->extent (Axis (scm_to_int (axis))));
}
"Return whether @var{stil} is empty ")
{
Stencil *s = unsmob_stencil (stil);
- SCM_ASSERT_TYPE (s, stil, SCM_ARG1, __FUNCTION__, "stencil");
+ LY_ASSERT_SMOB (Stencil, stil, 1);
return scm_from_bool (s->is_empty ());
}
-LY_DEFINE (ly_stencil_origin, "ly:stencil-origin",
- 2, 0, 0, (SCM stil, SCM axis),
- "Return a pair of numbers signifying the origin @var{stil} in "
- "@var{axis} direction (0 or 1 for x and y axis respectively).")
-{
- Stencil *s = unsmob_stencil (stil);
- SCM_ASSERT_TYPE (s, stil, SCM_ARG1, __FUNCTION__, "stencil");
- SCM_ASSERT_TYPE (is_axis (axis), axis, SCM_ARG2, __FUNCTION__, "axis");
-
- return scm_from_double (s->origin ()[Axis (scm_to_int (axis))]);
-}
-
-LY_DEFINE (ly_stencil_moved_to_edge, "ly:stencil-moved-to-edge",
- 4, 2, 0, (SCM first, SCM axis, SCM direction, SCM second,
- SCM padding, SCM minimum),
- "Similar to @code{ly:stencil-combine-edge}, but returns "
- "@var{second} positioned to be next to @var{first}. ")
-{
- /*
- C&P from combine-at-edge.
- */
- Stencil *s1 = unsmob_stencil (first);
- Stencil *s2 = unsmob_stencil (second);
- Stencil first_stencil;
-
- SCM_ASSERT_TYPE (is_axis (axis), axis, SCM_ARG3, __FUNCTION__, "axis");
- SCM_ASSERT_TYPE (is_direction (direction), direction, SCM_ARG4, __FUNCTION__, "dir");
-
- Real p = 0.0;
- if (padding != SCM_UNDEFINED)
- {
- SCM_ASSERT_TYPE (scm_is_number (padding), padding, SCM_ARG5, __FUNCTION__, "number");
- p = scm_to_double (padding);
- }
- Real m = 0.0;
- if (minimum != SCM_UNDEFINED)
- {
- SCM_ASSERT_TYPE (scm_is_number (minimum), minimum, SCM_ARG6, __FUNCTION__, "number");
- m = scm_to_double (minimum);
- }
-
- if (s1)
- first_stencil = *s1;
-
- if (s2)
- return first_stencil.moved_to_edge (Axis (scm_to_int (axis)),
- Direction (scm_to_int (direction)),
- *s2, p, m).smobbed_copy ();
- else
- return Stencil ().smobbed_copy ();
-}
-
LY_DEFINE (ly_stencil_combine_at_edge, "ly:stencil-combine-at-edge",
4, 2, 0, (SCM first, SCM axis, SCM direction,
SCM second,
first, SCM_ARG1, __FUNCTION__, "Stencil, #f or ()");
SCM_ASSERT_TYPE (s2 || second == SCM_BOOL_F || second == SCM_EOL,
second, SCM_ARG4, __FUNCTION__, "Stencil, #f or ()");
- SCM_ASSERT_TYPE (is_axis (axis), axis, SCM_ARG2, __FUNCTION__, "axis");
- SCM_ASSERT_TYPE (is_direction (direction), direction, SCM_ARG3, __FUNCTION__, "dir");
+ LY_ASSERT_TYPE (is_axis, axis, 2);
+ LY_ASSERT_TYPE (is_direction, direction, 3);
Real p = 0.0;
if (padding != SCM_UNDEFINED)
{
- SCM_ASSERT_TYPE (scm_is_number (padding), padding, SCM_ARG5, __FUNCTION__, "number");
+ LY_ASSERT_TYPE (scm_is_number, padding, 5);
p = scm_to_double (padding);
}
Real m = 0.0;
if (minimum != SCM_UNDEFINED)
{
- SCM_ASSERT_TYPE (scm_is_number (minimum), minimum, SCM_ARG6, __FUNCTION__, "number");
+ LY_ASSERT_TYPE (scm_is_number, minimum, 6);
m = scm_to_double (minimum);
}
if (s2)
result.add_at_edge (Axis (scm_to_int (axis)),
- Direction (scm_to_int (direction)), *s2, p, m);
+ Direction (scm_to_int (direction)), *s2, p);
return result.smobbed_copy ();
}
}
LY_DEFINE (ly_make_stencil, "ly:make-stencil",
- 3, 0, 0, (SCM expr, SCM xext, SCM yext),
- " \n"
- "Stencils are a device independent output expressions."
- "They carry two pieces of information: \n\n"
- "1: a specification of how to print this object. "
+ 1, 2, 0, (SCM expr, SCM xext, SCM yext),
+ "Stencils are device independent output expressions. "
+ "They carry two pieces of information:\n"
+
+ "@enumerate\n"
+
+ "@item\n"
+ "A specification of how to print this object. "
"This specification is processed by the output backends, "
- " for example @file{scm/output-ps.scm}.\n\n"
- "2: the vertical and horizontal extents of the object.\n\n")
+ "for example @file{scm/output-ps.scm}.\n"
+
+ "@item\n"
+ "The vertical and horizontal extents of the object, "
+ "given as pairs. "
+ "If an extent is unspecified (or if you use "
+ "@code{(1000 . -1000)} as its value), it is taken to be empty.\n"
+
+ "@end enumerate\n")
{
SCM_ASSERT_TYPE (!scm_is_pair (expr)
|| is_stencil_head (scm_car (expr)),
expr, SCM_ARG1, __FUNCTION__, "registered stencil expression");
- SCM_ASSERT_TYPE (is_number_pair (xext), xext, SCM_ARG2, __FUNCTION__, "number pair");
- SCM_ASSERT_TYPE (is_number_pair (yext), yext, SCM_ARG3, __FUNCTION__, "number pair");
- Box b (ly_scm2interval (xext), ly_scm2interval (yext));
+ Interval x;
+ if (xext != SCM_UNDEFINED)
+ {
+ LY_ASSERT_TYPE (is_number_pair, xext, 2);
+ x = ly_scm2interval (xext);
+ }
+
+ Interval y;
+ if (yext != SCM_UNDEFINED)
+ {
+ LY_ASSERT_TYPE (is_number_pair, yext, 3);
+ y = ly_scm2interval (yext);
+ }
+
+ Box b (x, y);
Stencil s (b, expr);
return s.smobbed_copy ();
}
"@var{dir} is a number -1, 1 are left and right respectively. "
"Other values are interpolated (so 0 means the center).")
{
- SCM_ASSERT_TYPE (unsmob_stencil (stil), stil, SCM_ARG1, __FUNCTION__, "stencil");
- SCM_ASSERT_TYPE (is_axis (axis), axis, SCM_ARG2, __FUNCTION__, "axis");
- SCM_ASSERT_TYPE (scm_is_number (dir), dir, SCM_ARG3, __FUNCTION__, "number");
+ LY_ASSERT_SMOB (Stencil, stil, 1);
+ LY_ASSERT_TYPE (is_axis, axis, 2);
+ LY_ASSERT_TYPE (scm_is_number, dir, 3);
Stencil target = *unsmob_stencil (stil);
1, 0, 0, (SCM s),
" Analyse @var{s}, and return a list of fonts used in @var{s}.")
{
+ LY_ASSERT_SMOB (Stencil, s, 1);
Stencil *stil = unsmob_stencil (s);
- SCM_ASSERT_TYPE (stil, s, SCM_ARG1, __FUNCTION__, "Stencil");
return find_expression_fonts (stil->expr ());
}
4, 0, 0, (SCM stc, SCM r, SCM g, SCM b),
"Put @var{stc} in a different color.")
{
+ LY_ASSERT_SMOB (Stencil, stc, 1);
Stencil *stil = unsmob_stencil (stc);
- SCM_ASSERT_TYPE (stil, stc, SCM_ARG1, __FUNCTION__, "Stencil");
return Stencil (stil->extent_box (),
scm_list_3 (ly_symbol2scm ("color"),
scm_list_3 (r, g, b),
4, 0, 0, (SCM expr, SCM func, SCM arg1, SCM offset),
"Parse EXPR, feed bits to FUNC with first arg ARG1")
{
- SCM_ASSERT_TYPE (ly_is_procedure (func), func, SCM_ARG1, __FUNCTION__,
- "procedure");
+ LY_ASSERT_TYPE (ly_is_procedure, func, 2);
Stencil_interpret_arguments a;
a.func = func;
"given by @var{iv}. The wings protude by an amount of @var{p}, which "
"may be negative. The thickness is given by @var{t}.")
{
- SCM_ASSERT_TYPE (is_axis (a), a, SCM_ARG1, __FUNCTION__, "axis");
- SCM_ASSERT_TYPE (is_number_pair (iv), iv, SCM_ARG2, __FUNCTION__, "number pair");
- SCM_ASSERT_TYPE (scm_is_number (t), a, SCM_ARG3, __FUNCTION__, "number");
- SCM_ASSERT_TYPE (scm_is_number (p), a, SCM_ARG4, __FUNCTION__, "number");
+ LY_ASSERT_TYPE (is_axis, a, 1);
+ LY_ASSERT_TYPE (is_number_pair, iv, 2);
+ LY_ASSERT_TYPE (scm_is_number, t,3);
+ LY_ASSERT_TYPE (scm_is_number, p,4);
return Lookup::bracket ((Axis)scm_to_int (a), ly_scm2interval (iv),
scm_to_double (t),
0.95 * scm_to_double (t)).smobbed_copy ();
}
-LY_DEFINE (ly_filled_box, "ly:round-filled-box",
+LY_DEFINE (ly_stencil_rotate, "ly:stencil-rotate",
+ 4, 0, 0, (SCM stil, SCM angle, SCM x, SCM y),
+ "Return a @var{stil} rotated @var{angle} degrees around point (@var{x}, @var{y}).")
+{
+ Stencil *s = unsmob_stencil (stil);
+ LY_ASSERT_SMOB (Stencil, stil, 1);
+ LY_ASSERT_TYPE (scm_is_number, angle, 2);
+ LY_ASSERT_TYPE (scm_is_number, x,3);
+ LY_ASSERT_TYPE (scm_is_number, y, 4);
+ Real a = scm_to_double (angle);
+ Real x_off = scm_to_double (x);
+ Real y_off = scm_to_double (y);
+
+ SCM new_s = s->smobbed_copy ();
+ Stencil *q = unsmob_stencil (new_s);
+ q->rotate (a, Offset (x_off, y_off));
+ return new_s;
+}
+
+LY_DEFINE (ly_round_filled_box, "ly:round-filled-box",
3, 0, 0,
(SCM xext, SCM yext, SCM blot),
"Make a @code{Stencil} "
"that prints a black box of dimensions @var{xext}, "
"@var{yext} and roundness @var{blot}.")
{
- SCM_ASSERT_TYPE (is_number_pair (xext), xext, SCM_ARG1, __FUNCTION__, "number pair");
- SCM_ASSERT_TYPE (is_number_pair (yext), yext, SCM_ARG2, __FUNCTION__, "number pair");
- SCM_ASSERT_TYPE (scm_is_number (blot), blot, SCM_ARG3, __FUNCTION__, "number");
+ LY_ASSERT_TYPE (is_number_pair, xext, 1);
+ LY_ASSERT_TYPE (is_number_pair, yext, 2);
+ LY_ASSERT_TYPE (scm_is_number, blot, 3);
return Lookup::round_filled_box (Box (ly_scm2interval (xext), ly_scm2interval (yext)),
scm_to_double (blot)).smobbed_copy ();
(SCM symbol),
"Add @var{symbol} as head of a stencil expression")
{
- SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol,
- SCM_ARG1, __FUNCTION__, "Symbol");
+ LY_ASSERT_TYPE (ly_is_symbol, symbol, 1);
register_stencil_head (symbol);
return SCM_UNSPECIFIED;
}
projects / lilypond.git / blobdiff