source file of the GNU LilyPond music typesetter
- (c) 2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2004--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "text-item.hh"
+#include "text-interface.hh"
#include "grob.hh"
#include "line-interface.hh"
#include "lookup.hh"
#include "font-interface.hh"
-#include "stencil.hh"
#include "lily-guile.hh"
#include "output-def.hh"
#include "misc.hh"
{
public:
DECLARE_SCHEME_CALLBACK (print, (SCM));
- static bool has_interface (Grob*);
+ DECLARE_GROB_INTERFACE ();
};
MAKE_SCHEME_CALLBACK (Balloon_interface, print, 1);
SCM
-Balloon_interface::print (SCM smob)
+Balloon_interface::print (SCM smob)
{
Grob *me = unsmob_grob (smob);
- SCM cb = me->get_property ("balloon-original-callback");
- SCM stil = SCM_EOL;
-
- if (ly_c_procedure_p (cb))
- stil = scm_call_1 (cb, smob);
-
- if (!unsmob_stencil (stil))
- return stil;
-
- SCM scm_off = me->get_property ("balloon-text-offset");
-
- if (!is_number_pair (scm_off))
- return stil;
+ Grob *p = me->get_parent (X_AXIS);
+
+ Offset off (me->relative_coordinate (p, X_AXIS),
+ me->relative_coordinate (p, Y_AXIS));
- Offset off = ly_scm2offset (scm_off);
- Stencil *s = unsmob_stencil (stil);
- Box orig_extent = s->extent_box ();
- Box box_extent = orig_extent;
+ Box b (p->extent (p, X_AXIS),
+ p->extent (p, Y_AXIS));
- Real w = robust_scm2double (me->get_property ("balloon-padding"), .1);
- box_extent.widen (w, w);
+ Real padding = robust_scm2double (me->get_property ("padding"), .1);
+ b.widen (padding, padding);
// FIXME
- Stencil fr = Lookup::frame (box_extent, 0.1, 0.05);
+ Stencil fr = Lookup::frame (b, 0.1, 0.05);
- fr.add_stencil (*s);
-
- SCM bt = me->get_property ("balloon-text");
+ SCM bt = me->get_property ("text");
SCM chain = Font_interface::text_font_alist_chain (me);
- chain = scm_cons (me->get_property ("balloon-text-props"), chain);
- SCM text = Text_interface::interpret_markup (me->get_layout ()->self_scm (),
- chain, bt);
+ SCM stencil = Text_interface::interpret_markup (me->layout ()->self_scm (),
+ chain, bt);
+
+ Stencil *text_stil = unsmob_stencil (stencil);
- Stencil *text_stil = unsmob_stencil (text);
-
Offset z1;
for (int i = X_AXIS; i < NO_AXES; i++)
{
Axis a ((Axis)i);
- z1[a] = box_extent [a].linear_combination (sign (off[a]));
+ z1[a] = b[a].linear_combination (sign (off[a]));
text_stil->align_to (a, -sign (off[a]));
}
Offset z2 = z1 + off;
-
+
fr.add_stencil (Line_interface::line (me, z1, z2));
text_stil->translate (z2);
fr.add_stencil (*text_stil);
-
- fr = Stencil (orig_extent, fr.expr ());
+
+ fr.translate (-off);
return fr.smobbed_copy ();
}
-ADD_INTERFACE (Balloon_interface,"text-balloon-interface",
- "A collection of routines to put text balloons around an object.",
- "balloon-padding balloon-text-props balloon-text-offset balloon-text balloon-original-callback");
+ADD_INTERFACE (Balloon_interface,
+ "A collection of routines to put text balloons around an"
+ " object.",
+
+ /* properties */
+ "padding "
+ "text "
+ );