#include "ly-smobs.icc"
-/*
-TODO:
+/* TODO:
-remove dynamic_cast<Spanner,Item> and put this code into respective
- subclass.
-*/
+ - remove dynamic_cast<Spanner,Item> and put this code into respective
+ subclass. */
#define HASH_SIZE 3
#define INFINITY_MSG "Infinity or NaN encountered"
Grob::Grob (SCM basicprops)
{
- /*
- fixme: default should be no callback.
- */
+ /* FIXME: default should be no callback. */
self_scm_ = SCM_EOL;
- pscore_=0;
+ pscore_= 0;
status_ = 0;
original_ = 0;
immutable_property_alist_ = basicprops;
mutable_property_alist_ = SCM_EOL;
- /*
- We do smobify_self () as the first step. Since the object lives on
- the heap, none of its SCM variables are protected from GC. After
- smobify_self (), they are.
- */
+ /* We do smobify_self () as the first step. Since the object lives
+ on the heap, none of its SCM variables are protected from
+ GC. After smobify_self (), they are. */
smobify_self ();
-
-
SCM meta = get_property ("meta");
if (ly_c_pair_p (meta))
{
SCM ifs = scm_assoc (ly_symbol2scm ("interfaces"), meta);
- /*
- Switch off interface checks for the moment.
- */
+ /* Switch off interface checks for the moment. */
bool itc = internal_type_checking_global_b;
internal_type_checking_global_b = false;
internal_set_property (ly_symbol2scm ("interfaces"), ly_cdr (ifs));
internal_type_checking_global_b = itc;
}
-
- /*
- TODO:
-
- destill this into a function, so we can re-init the immutable
- properties with a new BASICPROPS value after creation. Convenient
- eg. when using \override with StaffSymbol. */
-
+
+ /* TODO:
+
+ - destill this into a function, so we can re-init the immutable
+ properties with a new BASICPROPS value after
+ creation. Convenient eg. when using \override with
+ StaffSymbol. */
+
char const*onames[] = {"X-offset-callbacks", "Y-offset-callbacks"};
char const*xnames[] = {"X-extent", "Y-extent"};
char const*enames[] = {"X-extent-callback", "Y-extent-callback"};
-
+
for (int a = X_AXIS; a <= Y_AXIS; a++)
{
SCM l = get_property (onames[a]);
dim_cache_[a].offsets_left_ = scm_ilength (l);
}
else
- {
- programming_error ("[XY]-offset-callbacks must be a list");
- }
+ programming_error ("[XY]-offset-callbacks must be a list");
SCM cb = get_property (enames[a]);
SCM xt = get_property (xnames[a]);
-
- /*
- Should change default to empty?
- */
+
+ /* Should change default to empty? */
if (is_number_pair (xt))
cb = xt;
else if (cb != SCM_BOOL_F
&& !ly_c_procedure_p (cb) && !ly_c_pair_p (cb)
&& ly_c_procedure_p (get_property ("print-function")))
cb = stencil_extent_proc;
-
+
dim_cache_[a].dimension_ = cb;
}
-
}
-Grob::Grob (Grob const&s)
+Grob::Grob (Grob const &s)
: dim_cache_ (s.dim_cache_)
{
original_ = (Grob*) &s;
immutable_property_alist_ = s.immutable_property_alist_;
mutable_property_alist_ = SCM_EOL;
-
- /*
- No properties are copied. That is the job of handle_broken_dependencies.
- */
-
+
+ /* No properties are copied. That is the job of
+ handle_broken_dependencies. */
status_ = s.status_;
pscore_ = 0;
{
}
-
-MAKE_SCHEME_CALLBACK (Grob,stencil_extent,2);
+MAKE_SCHEME_CALLBACK (Grob, stencil_extent, 2);
SCM
Grob::stencil_extent (SCM element_smob, SCM scm_axis)
{
Axis a = (Axis) ly_scm2int (scm_axis);
Stencil *m = s->get_stencil ();
- Interval e ;
+ Interval e;
if (m)
e = m->extent (a);
return ly_interval2scm (e);
}
-Output_def*
-Grob::get_paper () const
+Output_def *
+Grob::get_paper () const
{
return pscore_ ? pscore_->paper_ : 0;
}
-/*
- Recursively track all dependencies of this Grob. The
- status_ field is used as a mark-field. It is marked with
- BUSY during execution of this function, and marked with FINAL
- when finished.
+/* Recursively track all dependencies of this Grob. The status_ field
+ is used as a mark-field. It is marked with BUSY during execution
+ of this function, and marked with FINAL when finished.
- FUNCPTR is the function to call to update this element.
-*/
+ FUNCPTR is the function to call to update this element. */
void
Grob::calculate_dependencies (int final, int busy, SCM funcname)
{
programming_error ("Element is busy, come back later");
return;
}
-
- status_= busy;
+
+ status_ = busy;
for (SCM d = get_property ("dependencies"); ly_c_pair_p (d);
d = ly_cdr (d))
- {
- unsmob_grob (ly_car (d))
- ->calculate_dependencies (final, busy, funcname);
- }
+ unsmob_grob (ly_car (d))->calculate_dependencies (final, busy, funcname);
-
SCM proc = internal_get_property (funcname);
if (ly_c_procedure_p (proc))
scm_call_1 (proc, this->self_scm ());
-
+
status_ = final;
}
Grob::get_stencil () const
{
if (!is_live ())
- {
- return 0;
- }
-
- SCM mol = get_property ("stencil");
- if (unsmob_stencil (mol))
- return unsmob_stencil (mol);
+ return 0;
+
+ SCM stil = get_property ("stencil");
+ if (unsmob_stencil (stil))
+ return unsmob_stencil (stil);
+
+ stil = get_uncached_stencil ();
- mol = get_uncached_stencil ();
-
if (is_live ())
{
- Grob *me = (Grob*)this;
- me->set_property ("stencil", mol);
+ Grob *me = (Grob*) this;
+ me->set_property ("stencil", stil);
}
-
- return unsmob_stencil (mol);
+
+ return unsmob_stencil (stil);
}
SCM
-Grob::get_uncached_stencil ()const
+Grob::get_uncached_stencil () const
{
SCM proc = get_property ("print-function");
- SCM mol = SCM_EOL;
- if (ly_c_procedure_p (proc))
- mol = scm_apply_0 (proc, scm_list_n (this->self_scm (), SCM_UNDEFINED));
-
- if (Stencil *m = unsmob_stencil (mol))
+ SCM stil = SCM_EOL;
+ if (ly_c_procedure_p (proc))
+ stil = scm_apply_0 (proc, scm_list_n (this->self_scm (), SCM_UNDEFINED));
+
+ if (Stencil *m = unsmob_stencil (stil))
{
if (to_boolean (get_property ("transparent")))
- mol = Stencil (m->extent_box (), SCM_EOL).smobbed_copy ();
- else
- {
- SCM expr = scm_list_3 (ly_symbol2scm ("grob-cause"), self_scm(), m->expr ());
- mol = Stencil (m->extent_box (),expr). smobbed_copy ();
- }
- }
+ stil = Stencil (m->extent_box (), SCM_EOL).smobbed_copy ();
+ else
+ {
+ SCM expr = scm_list_3 (ly_symbol2scm ("grob-cause"), self_scm(),
+ m->expr ());
+ stil = Stencil (m->extent_box (),expr). smobbed_copy ();
+ }
+ }
- return mol;
+ return stil;
}
/*
-
VIRTUAL STUBS
*/
}
void
-Grob::add_dependency (Grob*e)
+Grob::add_dependency (Grob *e)
{
if (e)
- {
- Pointer_group_interface::add_grob (this, ly_symbol2scm ("dependencies"),e);
- }
+ Pointer_group_interface::add_grob (this, ly_symbol2scm ("dependencies"),
+ e);
else
programming_error ("Null dependency added");
}
void
Grob::handle_broken_dependencies ()
{
- Spanner * sp = dynamic_cast<Spanner*> (this);
+ Spanner *sp = dynamic_cast<Spanner*> (this);
if (original_ && sp)
return;
if (sp)
- {
- /*
- This is the original spanner. We use a special function
- because some Spanners have enormously long lists in their
- properties.
- */
- for (SCM s = mutable_property_alist_; ly_c_pair_p (s);
- s = ly_cdr (s))
- {
- sp->substitute_one_mutable_property (ly_caar (s),
- ly_cdar (s));
- }
- }
+ /* THIS, SP is the original spanner. We use a special function
+ because some Spanners have enormously long lists in their
+ properties, and a special function fixes FOO */
+ for (SCM s = mutable_property_alist_; ly_c_pair_p (s); s = ly_cdr (s))
+ sp->substitute_one_mutable_property (ly_caar (s), ly_cdar (s));
System *system = get_system ();
if (is_live ()
- && system && common_refpoint (system, X_AXIS) && common_refpoint (system, Y_AXIS))
- {
- substitute_mutable_properties (system ? system->self_scm () : SCM_UNDEFINED,
- mutable_property_alist_);
- }
+ && system && common_refpoint (system, X_AXIS)
+ && common_refpoint (system, Y_AXIS))
+ substitute_mutable_properties (system
+ ? system->self_scm () : SCM_UNDEFINED,
+ mutable_property_alist_);
else if (dynamic_cast <System*> (this))
- {
- substitute_mutable_properties (SCM_UNDEFINED, mutable_property_alist_);
- }
+ substitute_mutable_properties (SCM_UNDEFINED, mutable_property_alist_);
else
- {
- /*
- This element is `invalid'; it has been removed from all
- dependencies, so let's junk the element itself.
-
- do not do this for System, since that would remove references
- to the originals of score-grobs, which get then GC'd (a bad
- thing.)
-
- */
- suicide ();
- }
+ /* THIS element is `invalid'; it has been removed from all
+ dependencies, so let's junk the element itself.
+
+ Do not do this for System, since that would remove references
+ to the originals of score-grobs, which get then GC'd (a bad
+ thing). */
+ suicide ();
}
-/*
- Note that we still want references to this element to be
- rearranged, and not silently thrown away, so we keep pointers
- like {broken_into_{drul,array}, original}
+/* Note that we still want references to this element to be
+ rearranged, and not silently thrown away, so we keep pointers like
+ {broken_into_{drul, array}, original}
*/
void
Grob::suicide ()
{
if (!is_live ())
- return;
+ return;
-
mutable_property_alist_ = SCM_EOL;
immutable_property_alist_ = SCM_EOL;
set_extent (SCM_EOL, Y_AXIS);
set_extent (SCM_EOL, X_AXIS);
- for (int a= X_AXIS; a <= Y_AXIS; a++)
+ for (int a = X_AXIS; a <= Y_AXIS; a++)
{
dim_cache_[a].offset_callbacks_ = SCM_EOL;
dim_cache_[a].offsets_left_ = 0;
void
Grob::handle_prebroken_dependencies ()
{
- /*
- Don't do this in the derived method, since we want to keep access to
- mutable_property_alist_ centralized.
- */
+ /* Don't do this in the derived method, since we want to keep access to
+ mutable_property_alist_ centralized. */
if (original_)
{
- Item * it = dynamic_cast<Item*> (this);
+ Item *it = dynamic_cast<Item*> (this);
substitute_mutable_properties (scm_int2num (it->break_status_dir ()),
- original_->mutable_property_alist_);
+ original_->mutable_property_alist_);
}
}
-Grob*
-Grob::find_broken_piece (System*) const
+Grob *
+Grob::find_broken_piece (System *) const
{
return 0;
}
-/*
- translate in one direction
-*/
+/* Translate in one direction. */
void
Grob::translate_axis (Real y, Axis a)
{
if (isinf (y) || isnan (y))
programming_error (_ (INFINITY_MSG));
else
- {
- dim_cache_[a].offset_ += y;
- }
-}
+ dim_cache_[a].offset_ += y;
+}
-/*
- Find the offset relative to D. If D equals THIS, then it is 0.
- Otherwise, it recursively defd as
-
- OFFSET_ + PARENT_L_->relative_coordinate (D)
-*/
+/* Find the offset relative to D. If D equals THIS, then it is 0.
+ Otherwise, it recursively defd as
+
+ OFFSET_ + PARENT_L_->relative_coordinate (D) */
Real
-Grob::relative_coordinate (Grob const*refp, Axis a) const
+Grob::relative_coordinate (Grob const *refp, Axis a) const
{
if (refp == this)
return 0.0;
- /*
- We catch PARENT_L_ == nil case with this, but we crash if we did
- not ask for the absolute coordinate (ie. REFP == nil.)
-
- */
+ /* We catch PARENT_L_ == nil case with this, but we crash if we did
+ not ask for the absolute coordinate (ie. REFP == nil.) */
if (refp == dim_cache_[a].parent_)
return get_offset (a);
- else
- return get_offset (a) + dim_cache_[a].parent_->relative_coordinate (refp, a);
-}
+ return get_offset (a) + dim_cache_[a].parent_->relative_coordinate (refp, a);
+}
-
-/*
- Invoke callbacks to get offset relative to parent.
-*/
+/* Invoke callbacks to get offset relative to parent. */
Real
Grob::get_offset (Axis a) const
{
while (dim_cache_[a].offsets_left_)
{
int l = --me->dim_cache_[a].offsets_left_;
- SCM cb = scm_list_ref (dim_cache_[a].offset_callbacks_, scm_int2num (l));
+ SCM cb = scm_list_ref (dim_cache_[a].offset_callbacks_, scm_int2num (l));
SCM retval = scm_call_2 (cb, self_scm (), scm_int2num (a));
Real r = ly_scm2double (retval);
programming_error (INFINITY_MSG);
r = 0.0;
}
- me->dim_cache_[a].offset_ +=r;
+ me->dim_cache_[a].offset_ += r;
}
return dim_cache_[a].offset_;
}
-
bool
-Grob::is_empty (Axis a)const
+Grob::is_empty (Axis a) const
{
- return ! (ly_c_pair_p (dim_cache_[a].dimension_) ||
- ly_c_procedure_p (dim_cache_[a].dimension_));
+ return ! (ly_c_pair_p (dim_cache_[a].dimension_)
+ || ly_c_procedure_p (dim_cache_[a].dimension_));
}
Interval
-Grob::extent (Grob * refp, Axis a) const
+Grob::extent (Grob *refp, Axis a) const
{
Real x = relative_coordinate (refp, a);
-
- Dimension_cache * d = (Dimension_cache *)&dim_cache_[a];
- Interval ext ;
+ Dimension_cache *d = (Dimension_cache *) &dim_cache_[a];
+ Interval ext;
if (ly_c_pair_p (d->dimension_))
;
else if (ly_c_procedure_p (d->dimension_))
- {
- /*
- FIXME: add doco on types, and should typecheck maybe?
- */
- d->dimension_= scm_call_2 (d->dimension_, self_scm (), scm_int2num (a));
- }
+ /* FIXME: add doco on types, and should typecheck maybe? */
+ d->dimension_= scm_call_2 (d->dimension_, self_scm (), scm_int2num (a));
else
return ext;
if (!ly_c_pair_p (d->dimension_))
return ext;
-
+
ext = ly_scm2interval (d->dimension_);
SCM extra = get_property (a == X_AXIS
- ? "extra-X-extent"
- : "extra-Y-extent");
+ ? "extra-X-extent"
+ : "extra-Y-extent");
- /*
- signs ?
- */
+ /* Signs ? */
if (ly_c_pair_p (extra))
{
- ext[BIGGER] += ly_scm2double (ly_cdr (extra));
- ext[SMALLER] += ly_scm2double (ly_car (extra));
+ ext[BIGGER] += ly_scm2double (ly_cdr (extra));
+ ext[SMALLER] += ly_scm2double (ly_car (extra));
}
-
+
extra = get_property (a == X_AXIS
- ? "minimum-X-extent"
- : "minimum-Y-extent");
+ ? "minimum-X-extent"
+ : "minimum-Y-extent");
if (ly_c_pair_p (extra))
- {
- ext.unite (Interval (ly_scm2double (ly_car (extra)),
- ly_scm2double (ly_cdr (extra))));
- }
+ ext.unite (Interval (ly_scm2double (ly_car (extra)),
+ ly_scm2double (ly_cdr (extra))));
ext.translate (x);
-
+
return ext;
}
-/*
- Find the group-element which has both #this# and #s#
-*/
-Grob *
-Grob::common_refpoint (Grob const* s, Axis a) const
+/* Find the group-element which has both #this# and #s# */
+Grob *
+Grob::common_refpoint (Grob const *s, Axis a) const
{
- /*
- I don't like the quadratic aspect of this code, but I see no other
- way. The largest chain of parents might be 10 high or so, so
- it shouldn't be a real issue. */
+ /* I don't like the quadratic aspect of this code, but I see no
+ other way. The largest chain of parents might be 10 high or so,
+ so it shouldn't be a real issue. */
for (Grob const *c = this; c; c = c->dim_cache_[a].parent_)
- for (Grob const * d = s; d; d = d->dim_cache_[a].parent_)
+ for (Grob const *d = s; d; d = d->dim_cache_[a].parent_)
if (d == c)
- return (Grob*)d;
+ return (Grob*) d;
return 0;
}
-
Grob *
-common_refpoint_of_list (SCM elist, Grob *common, Axis a)
+common_refpoint_of_list (SCM elist, Grob *common, Axis a)
{
for (; ly_c_pair_p (elist); elist = ly_cdr (elist))
- {
- Grob * s = unsmob_grob (ly_car (elist));
- if (!s)
- continue;
- if (common)
- common = common->common_refpoint (s, a);
- else
- common = s;
- }
+ if (Grob *s = unsmob_grob (ly_car (elist)))
+ {
+ if (common)
+ common = common->common_refpoint (s, a);
+ else
+ common = s;
+ }
return common;
}
-
-
Grob *
-common_refpoint_of_array (Link_array<Grob> const &arr, Grob *common, Axis a)
+common_refpoint_of_array (Link_array<Grob> const &arr, Grob *common, Axis a)
{
- for (int i = arr.size () ; i--; )
- {
- Grob * s = arr[i];
- if (!s)
- continue;
-
- if (common)
- common = common->common_refpoint (s, a);
- else
- common = s;
- }
+ for (int i = arr.size (); i--; )
+ if (Grob *s = arr[i])
+ {
+ if (common)
+ common = common->common_refpoint (s, a);
+ else
+ common = s;
+ }
return common;
}
SCM meta = get_property ("meta");
SCM nm = scm_assoc (ly_symbol2scm ("name"), meta);
nm = (ly_c_pair_p (nm)) ? ly_cdr (nm) : SCM_EOL;
- return ly_c_symbol_p (nm) ? ly_symbol2string (nm) : classname (this);
+ return ly_c_symbol_p (nm) ? ly_symbol2string (nm) : classname (this);
}
void
{
if (!has_offset_callback (cb, a))
{
- dim_cache_[a].offset_callbacks_ = scm_cons (cb, dim_cache_[a].offset_callbacks_);
+ dim_cache_[a].offset_callbacks_
+ = scm_cons (cb, dim_cache_[a].offset_callbacks_);
dim_cache_[a].offsets_left_ ++;
}
}
return scm_equal_p (cb, dim_cache_[a].dimension_) == SCM_BOOL_T;
}
-
bool
Grob::has_offset_callback (SCM cb, Axis a)const
{
for (int a = X_AXIS; a < NO_AXES; a ++)
{
Axis ax = (Axis)a;
- Grob * parent = me->get_parent (ax);
+ Grob *parent = me->get_parent (ax);
if (!parent)
continue;
-
+
if (parent->get_system () != me->get_system () && me->get_system ())
{
- Grob * newparent = parent->find_broken_piece (me->get_system ());
+ Grob *newparent = parent->find_broken_piece (me->get_system ());
me->set_parent (newparent, ax);
}
- if (Item * i = dynamic_cast<Item*> (me))
+ if (Item *i = dynamic_cast<Item*> (me))
{
Item *parenti = dynamic_cast<Item*> (parent);
Direction my_dir = i->break_status_dir () ;
if (my_dir!= parenti->break_status_dir ())
{
- Item *newparent = parenti->find_prebroken_piece (my_dir);
+ Item *newparent = parenti->find_prebroken_piece (my_dir);
me->set_parent (newparent, ax);
}
}
Grob::warning (String s)const
{
SCM cause = self_scm ();
- while (Grob * g = unsmob_grob (cause))
- {
- cause = g->get_property ("cause");
- }
+ while (Grob *g = unsmob_grob (cause))
+ cause = g->get_property ("cause");
if (Music *m = unsmob_music (cause))
- {
- m->origin ()->warning (s);
- }
+ m->origin ()->warning (s);
else
::warning (s);
}
void
-Grob::programming_error (String s)const
+Grob::programming_error (String s) const
{
- s = "Programming error: " + s;
+ s = "Programming error: " + s;
warning (s);
}
SMOB funcs
****************************************************/
-
-
IMPLEMENT_SMOBS (Grob);
IMPLEMENT_DEFAULT_EQUAL_P (Grob);
SCM
Grob::mark_smob (SCM ses)
{
- Grob * s = (Grob*) SCM_CELL_WORD_1 (ses);
+ Grob *s = (Grob*) SCM_CELL_WORD_1 (ses);
scm_gc_mark (s->immutable_property_alist_);
- for (int a =0 ; a < 2; a++)
+ for (int a = 0 ; a < 2; a++)
{
scm_gc_mark (s->dim_cache_[a].offset_callbacks_);
scm_gc_mark (s->dim_cache_[a].dimension_);
-
- /*
- don't mark the parents. The pointers in the mutable property
- list form two tree like structures (one for X relations, one
- for Y relations). Marking these can be done in limited stack
- space. If we add the parents, we will jump between X and Y in
- an erratic manner, leading to much more recursion depth (and
- core dumps if we link to pthreads.)
- */
+
+ /* Do not mark the parents. The pointers in the mutable
+ property list form two tree like structures (one for X
+ relations, one for Y relations). Marking these can be done
+ in limited stack space. If we add the parents, we will jump
+ between X and Y in an erratic manner, leading to much more
+ recursion depth (and core dumps if we link to pthreads). */
}
-
+
if (s->original_)
scm_gc_mark (s->original_->self_scm ());
- s->do_derived_mark ();
+ s->do_derived_mark ();
return s->mutable_property_alist_;
}
Grob::print_smob (SCM s, SCM port, scm_print_state *)
{
Grob *sc = (Grob *) ly_cdr (s);
-
+
scm_puts ("#<Grob ", port);
- scm_puts ((char *)sc->name ().to_str0 (), port);
+ scm_puts ((char *) sc->name ().to_str0 (), port);
- /*
- don't try to print properties, that is too much hassle.
- */
+ /* Do not print properties, that is too much hassle. */
scm_puts (" >", port);
return 1;
}
return SCM_EOL;
}
-
-
void
Grob::discretionary_processing ()
{
return scm_c_memq (k, ifs) != SCM_BOOL_F;
}
-
-/** Return Array of Grobs in SCM list L */
+/** Return Array of Grobs in SCM list LST */
Link_array<Grob>
-ly_scm2grobs (SCM l)
+ly_scm2grobs (SCM lst)
{
Link_array<Grob> arr;
- for (SCM s = l; ly_c_pair_p (s); s = ly_cdr (s))
+ for (SCM s = lst; ly_c_pair_p (s); s = ly_cdr (s))
{
SCM e = ly_car (s);
arr.push (unsmob_grob (e));
"Mutable properties are variables that are specific to one grob. Typically, "
"lists of other objects, or results from computations are stored in"
"mutable properties: every call to set-grob-property (or its C++ equivalent) "
- "sets a mutable property. "
+ "sets a mutable property. "
,
"X-offset-callbacks Y-offset-callbacks X-extent-callback stencil cause "
projects / lilypond.git / blobdiff