X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Flookup.cc;h=667aef9431a0b3dcca41d2ff3475f048b749521f;hb=402045837e7134cdf90d1fcf31768c62227a4936;hp=0e76c6849d32a398191b1a85946f738d8a8849ef;hpb=1a71119277d04b287b3a976c526adba6500239c6;p=lilypond.git diff --git a/lily/lookup.cc b/lily/lookup.cc index 0e76c6849d..667aef9431 100644 --- a/lily/lookup.cc +++ b/lily/lookup.cc @@ -3,813 +3,738 @@ source file of the GNU LilyPond music typesetter - (c) 1997--1999 Han-Wen Nienhuys + (c) 1997--2004 Han-Wen Nienhuys Jan Nieuwenhuizen - - TODO - Glissando */ #include #include -#include "lookup.hh" -#include "debug.hh" + +#include "line-interface.hh" +#include "warn.hh" #include "dimensions.hh" -#include "scalar.hh" -#include "paper-def.hh" +#include "bezier.hh" #include "string-convert.hh" #include "file-path.hh" #include "main.hh" #include "lily-guile.hh" -#include "all-fonts.hh" -#include "afm.hh" -#include "scope.hh" -#include "molecule.hh" -#include "atom.hh" -#include "lily-guile.hh" - +#include "stencil.hh" +#include "lookup.hh" +#include "font-metric.hh" +#include "interval.hh" -Lookup::Lookup () +Stencil +Lookup::dot (Offset p, Real radius) { - afm_l_ = 0; + SCM at = (scm_list_n (ly_symbol2scm ("dot"), + gh_double2scm (p[X_AXIS]), + gh_double2scm (p[Y_AXIS]), + gh_double2scm (radius), + SCM_UNDEFINED)); + Box box; + box.add_point (p - Offset (radius, radius)); + box.add_point (p + Offset (radius, radius)); + return Stencil (box, at); } -Lookup::Lookup (Lookup const& s) -{ - font_name_ = s.font_name_; - afm_l_ = 0; -} /* - build a ledger line for small pieces. + * Horizontal Slope: + * + * /| ^ + * / | | + * / | | height + * / | | + * / | v + * | / + * | / + * (0,0) x /slope=dy/dx + * | / + * |/ + * + * <-----> + * width */ -Molecule -Lookup::ledger_line (Interval xwid) const -{ - Drul_array endings; - endings[LEFT] = afm_find ("noteheads-ledgerending"); - Molecule * e = &endings[LEFT]; - endings[RIGHT] = *e; - - Real thick = e->dim_[Y_AXIS].length(); - Real len = e->dim_[X_AXIS].length () - thick; - - Molecule total; - Direction d = LEFT; - do { - endings[d].translate_axis (xwid[d] - endings[d].dim_[X_AXIS][d], X_AXIS); - total.add_molecule (endings[d]); - } while ((flip(&d)) != LEFT); - - Real xpos = xwid [LEFT] + len; - - while (xpos + len + thick /2 <= xwid[RIGHT]) - { - e->translate_axis (len, X_AXIS); - total.add_molecule (*e); - xpos += len; - } - - return total; -} - - -Molecule -Lookup::accidental (int j, bool cautionary) const -{ - Molecule m(afm_find (String ("accidentals-") + to_str (j))); - if (cautionary) - { - Molecule open = afm_find (String ("accidentals-(")); - Molecule close = afm_find (String ("accidentals-)")); - m.add_at_edge(X_AXIS, LEFT, Molecule(open), 0); - m.add_at_edge(X_AXIS, RIGHT, Molecule(close), 0); - } - return m; -} - - - -Molecule -Lookup::afm_find (String s, bool warn) const -{ - if (!afm_l_) - { - Lookup * me = (Lookup*)(this); - me->afm_l_ = all_fonts_global_p->find_afm (font_name_); - if (!me->afm_l_) - { - warning (_f ("Can't find font: `%s'", font_name_)); - warning (_f ("(search path: `%s')", global_path.str ().ch_C())); - error (_ ("Aborting")); - } - } - Adobe_font_char_metric cm = afm_l_->find_char (s, warn); - Molecule m; - if (cm.code () < 0) - { - /* - don't want people relying on this kind of dimension. - */ - m.set_empty (false); - return m; - } - - Atom at (gh_list (char_scm_sym, - gh_int2scm (cm.code ()), - SCM_UNDEFINED)); - at.font_ = ly_symbol (font_name_.ch_C()); - at.magn_ = gh_int2scm (0); - - m.dim_ = cm.dimensions(); - m.add_atom (&at); - return m; -} - -Molecule -Lookup::notehead (int j, String type) const -{ - if (j > 2) - j = 2; - if (type == "harmonic" || type == "cross") - j = 2; - - return afm_find (String ("noteheads-") + to_str (j) + type); -} - -Molecule -Lookup::simple_bar (String type, Real h, Paper_def* paper_l) const -{ - SCM thick = ly_symbol ("barthick_" + type); - Real w = 0.0; - - if (paper_l->scope_p_->elem_b (thick)) - { - w = paper_l->get_realvar (thick); - } - else - { - programming_error ("No bar thickness set ! "); - w = 1 PT; - } - return filledbox (Box (Interval(0,w), Interval(-h/2, h/2))); -} - - -Molecule -Lookup::bar (String str, Real h, Paper_def *paper_l) const -{ - if (str == "bracket") - return staff_bracket (h); - else if (str == "brace") - { - Real staffht = paper_l->get_var ("staffheight"); - return staff_brace (h,staffht); - } - Real kern = paper_l->get_var ("bar_kern"); - Real thinkern = paper_l->get_var ("bar_thinkern"); - - Molecule thin = simple_bar ("thin", h, paper_l); - Molecule thick = simple_bar ("thick", h, paper_l); - Molecule colon = afm_find ("dots-repeatcolon", paper_l); - - Molecule m; - - if (str == "") - { - return fill (Box (Interval(0, 0), Interval (-h/2, h/2))); - } - if (str == "scorepostbreak") - { - return simple_bar ("score", h, paper_l); - } - else if (str == "|") - { - return thin; - } - else if (str == "|.") - { - m.add_at_edge (X_AXIS, LEFT, thick, 0); - m.add_at_edge (X_AXIS, LEFT, thin, kern); - } - else if (str == ".|") - { - m.add_at_edge (X_AXIS, RIGHT, thick, 0); - m.add_at_edge (X_AXIS, RIGHT, thin, kern); - } - else if (str == ":|") - { - m.add_at_edge (X_AXIS, LEFT, thick, 0); - m.add_at_edge (X_AXIS, LEFT, thin, kern); - m.add_at_edge (X_AXIS, LEFT, colon, kern); - } - else if (str == "|:") - { - m.add_at_edge (X_AXIS, RIGHT, thick, 0); - m.add_at_edge (X_AXIS, RIGHT, thin, kern); - m.add_at_edge (X_AXIS, RIGHT, colon, kern); - } - else if (str == ":|:") - { - m.add_at_edge (X_AXIS, LEFT, thick, thinkern); - m.add_at_edge (X_AXIS, LEFT, colon, kern); - m.add_at_edge (X_AXIS, RIGHT, thick, kern); - m.add_at_edge (X_AXIS, RIGHT, colon, kern); - } - else if (str == ".|.") - { - m.add_at_edge (X_AXIS, LEFT, thick, thinkern); - m.add_at_edge (X_AXIS, RIGHT, thick, kern); - } - else if (str == "||") - { - m.add_at_edge (X_AXIS, RIGHT, thin, 0); - m.add_at_edge (X_AXIS, RIGHT, thin, thinkern); - } - - return m; -} - -Molecule -Lookup::beam (Real slope, Real width, Real thick) const +Stencil +Lookup::beam (Real slope, Real width, Real thick, Real blot) { Real height = slope * width; Real min_y = (0 ? height) + thick/2; + Box b (Interval (0, width), + Interval (min_y, max_y)); - Molecule m; - Atom at - (gh_list (beam_scm_sym, - gh_double2scm (width), - gh_double2scm (slope), - gh_double2scm (thick), - SCM_UNDEFINED)); - - m.dim_[X_AXIS] = Interval (0, width); - m.dim_[Y_AXIS] = Interval (min_y, max_y); - m.add_atom (&at); - return m; -} - -Molecule -Lookup::clef (String st) const -{ - return afm_find (String ("clefs-" + st)); -} - -SCM -offset2scm (Offset o) -{ - return gh_list (gh_double2scm (o[X_AXIS]), gh_double2scm(o[Y_AXIS]), - SCM_UNDEFINED); + SCM at = scm_list_n (ly_symbol2scm ("beam"), + gh_double2scm (width), + gh_double2scm (slope), + gh_double2scm (thick), + gh_double2scm (blot), + SCM_UNDEFINED); + return Stencil (b, at); } -Molecule -Lookup::dashed_slur (Array controls, Real thick, Real dash) const +Stencil +Lookup::dashed_slur (Bezier b, Real thick, Real dash) { - assert (controls.size () == 8); - Offset d = controls[3] - controls[0]; - - Real dx = d[X_AXIS]; - Real dy = d[Y_AXIS]; - - Molecule m; + SCM l = SCM_EOL; - - m.dim_[X_AXIS] = Interval (0, dx); - m.dim_[Y_AXIS] = Interval (0 ? dy); - - SCM sc[4]; - for (int i=0; i< 4; i++) + for (int i= 4; i -- ;) { - sc[i] = offset2scm (controls[i]); + l = gh_cons (ly_offset2scm (b.control_[i]), l); } - Atom at - (gh_list (ly_symbol ("dashed-slur"), - gh_double2scm (thick), - gh_double2scm (dash), - ly_quote_scm (array_to_list (sc, 4)), - SCM_UNDEFINED)); - - - m.add_atom (&at); - return m; -} + SCM at = (scm_list_n (ly_symbol2scm ("dashed-slur"), + gh_double2scm (thick), + gh_double2scm (dash), + ly_quote_scm (l), + SCM_UNDEFINED)); -Molecule -Lookup::dots () const -{ - return afm_find (String ("dots-dot")); + Box box (Interval (0,0),Interval (0,0)); + return Stencil (box, at); } -Molecule -Lookup::fill (Box b) const +Stencil +Lookup::horizontal_line (Interval w, Real th) { - Molecule m; - m.dim_ = b; - return m; -} + SCM at = scm_list_n (ly_symbol2scm ("horizontal-line"), + gh_double2scm (w[LEFT]), + gh_double2scm (w[RIGHT]), + gh_double2scm (th), + SCM_UNDEFINED); -Molecule -Lookup::rest (int j, bool o, String style) const -{ - return afm_find (String ("rests-") + to_str (j) + (o ? "o" : "") + style); -} + Box box ; + box[X_AXIS] = w; + box[Y_AXIS] = Interval (-th/2,th/2); -Molecule -Lookup::special_time_signature (String s, int n, int d, Paper_def*pap) const -{ - // First guess: s contains only the signature style - String symbolname = "timesig-" + s + to_str (n) + "/" + to_str (d); - - Molecule m = afm_find (symbolname, false); - if (!m.empty_b()) - return m; + return Stencil (box, at); +} - // Second guess: s contains the full signature name - m = afm_find ("timesig-"+s, false); - if (!m.empty_b ()) - return m; - // Resort to default layout with numbers - return time_signature (n,d,pap); +Stencil +Lookup::blank (Box b) +{ + return Stencil (b, scm_makfrom0str ("")); } -Molecule -Lookup::filledbox (Box b ) const +Stencil +Lookup::filled_box (Box b) { - Molecule m; - - Atom at (gh_list (filledbox_scm_sym, + SCM at = (scm_list_n (ly_symbol2scm ("filledbox"), gh_double2scm (-b[X_AXIS][LEFT]), gh_double2scm (b[X_AXIS][RIGHT]), gh_double2scm (-b[Y_AXIS][DOWN]), gh_double2scm (b[Y_AXIS][UP]), SCM_UNDEFINED)); - m.dim_ = b; - m.add_atom (&at); - return m; + return Stencil (b,at); } - - -/** - Magnification steps. These are powers of 1.2. The numbers are - taken from Knuth's plain.tex: */ - - -/** - TODO: THIS IS UGLY. Since the user has direct access to TeX - strings, we try some halfbaked attempt to detect TeX trickery. - -*/ -Molecule -Lookup::text (String style, String text, Paper_def *paper_l) const +/* + * round filled box: + * + * __________________________________ + * / \ ^ / \ ^ + * | |blot | | + * | | |dia | | | + * | |meter | | + * |\ _ _ / v \ _ _ /| | + * | | | + * | | | Box + * | <------>| | extent + * | blot | | (Y_AXIS) + * | diameter| | + * | | | + * | _ _ _ _ | | + * |/ \ / \| | + * | | | + * | | | | | + * | | | + * x\_____/______________\_____/|_____v + * |(0,0) | + * | | + * | | + * |<-------------------------->| + * Box extent(X_AXIS) + */ +Stencil +Lookup::round_filled_box (Box b, Real blotdiameter) { - Molecule m; - if (style.empty_b ()) - style = "roman"; - - int font_mag = 0; - Real font_h = paper_l->get_var ("font_normal"); - if (paper_l->scope_p_->elem_b ("font_" + style)) + if (b.x ().length () < blotdiameter) { - font_h = paper_l->get_var ("font_" + style); + programming_error (_f ("round filled box horizontal extent smaller than blot; decreasing blot")); + blotdiameter = b.x ().length (); } - - - Real realmag = 1.0; - if (paper_l->scope_p_->elem_b ("magnification_" + style)) + if (b.y ().length () < blotdiameter) { - font_mag = (int)paper_l->get_var ("magnification_" + style); - realmag = pow (1.2, font_mag); + programming_error (_f ("round filled box vertical extent smaller than blot; decreasing blot")); + blotdiameter = b.y ().length (); } - /* - UGH. - */ - SCM l = ly_ch_C_eval_scm (("(style-to-cmr \"" + style + "\")").ch_C()); - if (l != SCM_BOOL_F) - { - style = ly_scm2string (SCM_CDR(l)) +to_str ((int)font_h); - } + SCM at = (scm_list_n (ly_symbol2scm ("round-filled-box"), + gh_double2scm (-b[X_AXIS][LEFT]), + gh_double2scm (b[X_AXIS][RIGHT]), + gh_double2scm (-b[Y_AXIS][DOWN]), + gh_double2scm (b[Y_AXIS][UP]), + gh_double2scm (blotdiameter), + SCM_UNDEFINED)); - Real w = 0; - Interval ydims (0,0); - - Font_metric* afm_l = all_fonts_global_p->find_font (style); - DEBUG_OUT << "\nChars: "; + return Stencil (b,at); +} + - int brace_count =0; - for (int i = 0; i < text.length_i (); i++) - { - - if (text[i]=='\\') - { - for (i++; (i < text.length_i ()) && isalpha(text[i]); i++) - ; - i--; // Compensate for the increment in the outer loop! - } +/* + * Create Stencil that represents a filled polygon with round edges. + * + * LIMITATIONS: + * + * (a) Only outer (convex) edges are rounded. + * + * (b) This algorithm works as expected only for polygons whose edges + * do not intersect. For example, the polygon ((0, 0), (q, 0), (0, + * q), (q, q)) has an intersection at point (q/2, q/2) and therefore + * will give a strange result. Even non-adjacent edges that just + * touch each other will in general not work as expected for non-null + * blotdiameter. + * + * (c) Given a polygon ((x0, y0), (x1, y1), ... , (x(n-1), y(n-1))), + * if there is a natural number k such that blotdiameter is greater + * than the maximum of { | (x(k mod n), y(k mod n)) - (x((k+1) mod n), + * y((k+1) mod n)) |, | (x(k mod n), y(k mod n)) - (x((k+2) mod n), + * y((k+2) mod n)) |, | (x((k+1) mod n), y((k+1) mod n)) - (x((k+2) + * mod n), y((k+2) mod n)) | }, then the outline of the rounded + * polygon will exceed the outline of the core polygon. In other + * words: Do not draw rounded polygons that have a leg smaller or + * thinner than blotdiameter (or set blotdiameter to a sufficiently + * small value -- maybe even 0.0)! + * + * NOTE: Limitations (b) and (c) arise from the fact that round edges + * are made by moulding sharp edges to round ones rather than adding + * to a core filled polygon. For details of these two different + * approaches, see the thread upon the ledger lines patch that started + * on March 25, 2002 on the devel mailing list. The below version of + * round_filled_polygon() sticks to the moulding model, which the + * majority of the list participants finally voted for. This, + * however, results in the above limitations and a much increased + * complexity of the algorithm, since it has to compute a shrinked + * polygon -- which is not trivial define precisely and unambigously. + * With the other approach, one simply could move a circle of size + * blotdiameter along all edges of the polygon (which is what the + * postscript routine in the backend effectively does, but on the + * shrinked polygon). --jr + */ +Stencil +Lookup::round_filled_polygon (Array points, Real blotdiameter) +{ + /* TODO: Maybe print a warning if one of the above limitations + applies to the given polygon. However, this is quite complicated + to check. */ + + /* remove consecutive duplicate points */ + const Real epsilon = 0.01; + for (int i = 0; i < points.size ();) + { + int next_i = (i + 1) % points.size (); + Real d = (points[i] - points[next_i]).length (); + if (d < epsilon) + points.del (next_i); else - { - if (text[i] == '{') - brace_count ++; - else if (text[i] == '}') - brace_count --; - Character_metric *c = (Character_metric*)afm_l->get_char ((unsigned char)text[i],false); - - w += c->dimensions()[X_AXIS].length (); - ydims.unite (c->dimensions()[Y_AXIS]); - } - } - - if(brace_count) - { - warning (_f ("Non-matching braces in text `%s', adding braces", text.ch_C())); - - if (brace_count < 0) - { - text = to_str ('{', -brace_count) + text; + i++; + } + + /* special cases: degenerated polygons */ + if (points.size () == 0) + return Stencil (); + if (points.size () == 1) + return dot (points[0], 0.5 * blotdiameter); + if (points.size () == 2) + return Line_interface::make_line (blotdiameter, points[0], points[1]); + + /* shrink polygon in size by 0.5 * blotdiameter */ + Array shrinked_points; + shrinked_points.set_size (points.size ()); + bool ccw = 1; // true, if three adjacent points are counterclockwise ordered + for (int i = 0; i < points.size (); i++) + { + int i0 = i; + int i1 = (i + 1) % points.size (); + int i2 = (i + 2) % points.size (); + Offset p0 = points[i0]; + Offset p1 = points[i1]; + Offset p2 = points[i2]; + Offset p10 = p0 - p1; + Offset p12 = p2 - p1; + if (p10.length () != 0.0) + { // recompute ccw + Real phi = p10.arg (); + // rotate (p2 - p0) by (-phi) + Offset q = complex_multiply (p2 - p0, complex_exp (Offset (1.0, -phi))); + + if (q[Y_AXIS] > 0) + ccw = 1; + else if (q[Y_AXIS] < 0) + ccw = 0; + else {} // keep ccw unchanged } - else + else {} // keep ccw unchanged + Offset p10n = (1.0 / p10.length ()) * p10; // normalize length to 1.0 + Offset p12n = (1.0 / p12.length ()) * p12; + Offset p13n = 0.5 * (p10n + p12n); + Offset p14n = 0.5 * (p10n - p12n); + Offset p13; + Real d = p13n.length () * p14n.length (); // distance p3n to line(p1..p0) + if (d < epsilon) + // special case: p0, p1, p2 are on a single line => build + // vector orthogonal to (p2-p0) of length 0.5 blotdiameter { - text = text + to_str ('}', brace_count); + p13[X_AXIS] = p10[Y_AXIS]; + p13[Y_AXIS] = -p10[X_AXIS]; + p13 = (0.5 * blotdiameter / p13.length ()) * p13; } + else + p13 = (0.5 * blotdiameter / d) * p13n; + shrinked_points[i1] = p1 + ((ccw) ? p13 : -p13); } - ydims *= realmag; - m.dim_.x () = Interval (0, w*realmag); - m.dim_.y () = ydims; - - - Atom at (gh_list (text_scm_sym, - ly_ch_C_to_scm (text.ch_C()), - SCM_UNDEFINED)); - at.font_ = ly_symbol (style); - at.magn_ = gh_int2scm (font_mag); - - m.add_atom (&at); - return m; -} - - -Molecule -Lookup::time_signature (int num, int den, Paper_def *paper_l) const -{ - String sty = "number"; - Molecule n (text (sty, to_str (num), paper_l)); - Molecule d (text (sty, to_str (den), paper_l)); - n.align_to (X_AXIS, CENTER); - d.align_to (X_AXIS, CENTER); - Molecule m; - if (den) - { - m.add_at_edge (Y_AXIS, UP, n, 0.0); - m.add_at_edge (Y_AXIS, DOWN, d, 0.0); - } - else + /* build scm expression and bounding box */ + SCM shrinked_points_scm = SCM_EOL; + Box box; + for (int i = 0; i < shrinked_points.size (); i++) { - m = n; - m.align_to (Y_AXIS, CENTER); + SCM x = gh_double2scm (shrinked_points[i][X_AXIS]); + SCM y = gh_double2scm (shrinked_points[i][Y_AXIS]); + shrinked_points_scm = gh_cons (x, gh_cons (y, shrinked_points_scm)); + box.add_point (points[i]); } - return m; -} + SCM polygon_scm = scm_list_n (ly_symbol2scm ("polygon"), + ly_quote_scm (shrinked_points_scm), + gh_double2scm (blotdiameter), + SCM_UNDEFINED); -Molecule -Lookup::staff_brace (Real y, int staff_size) const -{ - Molecule m; - /* - (define (pianobrace y staffht) - (let* ((step 1.0) - (minht (* 2 staffht)) - (maxht (* 7 minht)) - ) - (string-append - (select-font (string-append "feta-braces" (number->string (inexact->exact staffht))) 0) - (char (max 0 (/ (- (min y (- maxht step)) minht) step)))) - ) - ) - */ - - Real step = 1.0; - int minht = 2 * staff_size; - int maxht = 7 * minht; - int idx = int (((maxht - step) ? 0; - - SCM f = ly_symbol (String ("feta-braces" + to_str (staff_size))); - SCM e =gh_list (char_scm_sym, gh_int2scm (idx), SCM_UNDEFINED); - Atom at (e); - at.font_ = f; - - m.dim_[Y_AXIS] = Interval (-y/2,y/2); - m.dim_[X_AXIS] = Interval (0,0); - m.add_atom (&at); - return m; + Stencil polygon = Stencil (box, polygon_scm); + shrinked_points.clear (); + return polygon; } -Molecule -Lookup::hairpin (Real width, Real height, Real thick, bool decresc, bool continued) const -{ - Molecule m; - - String hairpin = String (decresc ? "de" : "") + "crescendo"; - Atom at (gh_list (ly_symbol (hairpin), - gh_double2scm (thick), - gh_double2scm (width), - gh_double2scm (height), - gh_double2scm (continued ? height/2 : 0.0), - SCM_UNDEFINED)); - m.dim_.x () = Interval (0, width); - m.dim_.y () = Interval (-2*height, 2*height); - m.add_atom (&at); - return m; -} - -Molecule -Lookup::tuplet_bracket (Real dy , Real dx, Real thick, Real gap, Real interline_f, Direction dir) const +/* + TODO: deprecate? + */ +Stencil +Lookup::frame (Box b, Real thick, Real blot) { - Molecule m; - - Atom at (gh_list(tuplet_scm_sym, - gh_double2scm (interline_f), - gh_double2scm (gap), - gh_double2scm (dx), - gh_double2scm (dy), - gh_double2scm (thick), - gh_int2scm (dir), - SCM_UNDEFINED)); - m.add_atom (&at); - + Stencil m; + Direction d = LEFT; + for (Axis a = X_AXIS; a < NO_AXES; a = Axis (a + 1)) + { + Axis o = Axis ((a+1)%NO_AXES); + do + { + Box edges; + edges[a] = b[a][d] + 0.5 * thick * Interval (-1, 1); + edges[o][DOWN] = b[o][DOWN] - thick/2; + edges[o][UP] = b[o][UP] + thick/2; + + m.add_stencil (round_filled_box (edges, blot)); + } + while (flip (&d) != LEFT); + } return m; } /* Make a smooth curve along the points */ -Molecule -Lookup::slur (Array controls, Real linethick) const +Stencil +Lookup::slur (Bezier curve, Real curvethick, Real linethick) { - Offset delta_off = controls[3]- controls[0]; - Molecule m; - - SCM scontrols [8]; - int indices[] = {5,6,7,4,1,2,3,0}; - - for (int i= 0; i < 8; i++) - scontrols[i] = offset2scm (controls[indices[i]]); + Real alpha = (curve.control_[3] - curve.control_[0]).arg (); + Bezier back = curve; + Offset perp = curvethick * complex_exp (Offset (0, alpha + M_PI/2)) * 0.5; + back.reverse (); + back.control_[1] += perp; + back.control_[2] += perp; + + curve.control_[1] -= perp; + curve.control_[2] -= perp; + + SCM scontrols[8]; + for (int i=4; i--;) + scontrols[ i ] = ly_offset2scm (back.control_[i]); + for (int i=4 ; i--;) + scontrols[i+4] = ly_offset2scm (curve.control_[i]); - Atom at (gh_list (ly_symbol ("bezier-sandwich"), - ly_quote_scm (array_to_list (scontrols, 8)), + /* + Need the weird order b.o. the way PS want its arguments + */ + int indices[]= {5, 6, 7, 4, 1, 2, 3, 0}; + SCM list = SCM_EOL; + for (int i= 8; i--;) + { + list = gh_cons (scontrols[indices[i]], list); + } + + + SCM at = (scm_list_n (ly_symbol2scm ("bezier-sandwich"), + ly_quote_scm (list), gh_double2scm (linethick), SCM_UNDEFINED)); + Box b(curve.extent (X_AXIS), + curve.extent (Y_AXIS)); - m.dim_[X_AXIS] = Interval (0, delta_off[X_AXIS]); - m.dim_[Y_AXIS] = Interval (0 ? delta_off[Y_AXIS]); - m.add_atom (&at); - return m; -} + b[X_AXIS].unite (back.extent (X_AXIS)); + b[Y_AXIS].unite (back.extent (Y_AXIS)); -Molecule -Lookup::staff_bracket (Real y) const -{ - Molecule m; - Atom at ( gh_list (bracket_scm_sym, - gh_double2scm (y), - SCM_UNDEFINED)); - m.add_atom (&at); - m.dim_[Y_AXIS] = Interval (-y/2,y/2); - m.dim_[X_AXIS] = Interval (0,4 PT); - - m.translate_axis (- 4. / 3. * m.dim_[X_AXIS].length (), X_AXIS); - return m; + return Stencil (b, at); } -Molecule -Lookup::volta (Real h, Real w, Real thick, bool vert_start, bool vert_end) const +/* + * Bezier Sandwich: + * + * .| + * . | + * top . | + * . curve | + * . | + * . | + * . | + * | | + * | .| + * | . + * | bottom . + * | . curve + * | . + * | . + * | . + * | . + * |. + * | + * + */ +Stencil +Lookup::bezier_sandwich (Bezier top_curve, Bezier bottom_curve) { - Molecule m; - - Atom at (gh_list (volta_scm_sym, - gh_double2scm (h), - gh_double2scm (w), - gh_double2scm (thick), - gh_int2scm (vert_start), - gh_int2scm (vert_end), - SCM_UNDEFINED)); - - m.dim_[Y_AXIS] = Interval (- h/2, h/2); - m.dim_[X_AXIS] = Interval (0, w); - - m.add_atom (&at); - return m; + /* + Need the weird order b.o. the way PS want its arguments + */ + SCM list = SCM_EOL; + list = gh_cons (ly_offset2scm (bottom_curve.control_[3]), list); + list = gh_cons (ly_offset2scm (bottom_curve.control_[0]), list); + list = gh_cons (ly_offset2scm (bottom_curve.control_[1]), list); + list = gh_cons (ly_offset2scm (bottom_curve.control_[2]), list); + list = gh_cons (ly_offset2scm (top_curve.control_[0]), list); + list = gh_cons (ly_offset2scm (top_curve.control_[3]), list); + list = gh_cons (ly_offset2scm (top_curve.control_[2]), list); + list = gh_cons (ly_offset2scm (top_curve.control_[1]), list); + + SCM horizontal_bend = scm_list_n (ly_symbol2scm ("bezier-sandwich"), + ly_quote_scm (list), + gh_double2scm (0.0), + SCM_UNDEFINED); + + Interval x_extent = top_curve.extent (X_AXIS); + x_extent.unite (bottom_curve.extent (X_AXIS)); + Interval y_extent = top_curve.extent (Y_AXIS); + y_extent.unite (bottom_curve.extent (Y_AXIS)); + Box b (x_extent, y_extent); + + return Stencil (b, horizontal_bend); } -Molecule -Lookup::accordion (SCM s, Real interline_f) const +/* + TODO: junk me. + */ +Stencil +Lookup::accordion (SCM s, Real staff_space, Font_metric *fm) { - Molecule m; - String sym = ly_scm2string(SCM_CAR(s)); - String reg = ly_scm2string(SCM_CAR(SCM_CDR(s))); + Stencil m; + String sym = ly_scm2string (ly_car (s)); + String reg = ly_scm2string (ly_car (ly_cdr (s))); if (sym == "Discant") { - Molecule r = afm_find("scripts-accDiscant"); - m.add_molecule(r); - if (reg.left_str(1) == "F") + Stencil r = fm->find_by_name ("accordion-accDiscant"); + m.add_stencil (r); + if (reg.left_string (1) == "F") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 2.5 PT, Y_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-1); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 2.5 PT, Y_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-1); } int eflag = 0x00; - if (reg.left_str(3) == "EEE") + if (reg.left_string (3) == "EEE") { eflag = 0x07; - reg = reg.right_str(reg.length_i()-3); + reg = reg.right_string (reg.length ()-3); } - else if (reg.left_str(2) == "EE") + else if (reg.left_string (2) == "EE") { eflag = 0x05; - reg = reg.right_str(reg.length_i()-2); + reg = reg.right_string (reg.length ()-2); } - else if (reg.left_str(2) == "Eh") + else if (reg.left_string (2) == "Eh") { eflag = 0x04; - reg = reg.right_str(reg.length_i()-2); + reg = reg.right_string (reg.length ()-2); } - else if (reg.left_str(1) == "E") + else if (reg.left_string (1) == "E") { eflag = 0x02; - reg = reg.right_str(reg.length_i()-1); + reg = reg.right_string (reg.length ()-1); } if (eflag & 0x02) { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 1.5 PT, Y_AXIS); - m.add_molecule(d); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 1.5 PT, Y_AXIS); + m.add_stencil (d); } if (eflag & 0x04) { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 1.5 PT, Y_AXIS); - d.translate_axis(0.8 * interline_f PT, X_AXIS); - m.add_molecule(d); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 1.5 PT, Y_AXIS); + d.translate_axis (0.8 * staff_space PT, X_AXIS); + m.add_stencil (d); } if (eflag & 0x01) { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 1.5 PT, Y_AXIS); - d.translate_axis(-0.8 * interline_f PT, X_AXIS); - m.add_molecule(d); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 1.5 PT, Y_AXIS); + d.translate_axis (-0.8 * staff_space PT, X_AXIS); + m.add_stencil (d); } - if (reg.left_str(2) == "SS") + if (reg.left_string (2) == "SS") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(0.5 * interline_f PT, Y_AXIS); - d.translate_axis(0.4 * interline_f PT, X_AXIS); - m.add_molecule(d); - d.translate_axis(-0.8 * interline_f PT, X_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-2); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (0.5 * staff_space PT, Y_AXIS); + d.translate_axis (0.4 * staff_space PT, X_AXIS); + m.add_stencil (d); + d.translate_axis (-0.8 * staff_space PT, X_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-2); } - if (reg.left_str(1) == "S") + if (reg.left_string (1) == "S") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(0.5 * interline_f PT, Y_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-1); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (0.5 * staff_space PT, Y_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-1); } } else if (sym == "Freebase") { - Molecule r = afm_find("scripts-accFreebase"); - m.add_molecule(r); - if (reg.left_str(1) == "F") + Stencil r = fm->find_by_name ("accordion-accFreebase"); + m.add_stencil (r); + if (reg.left_string (1) == "F") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 1.5 PT, Y_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-1); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 1.5 PT, Y_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-1); } if (reg == "E") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 0.5 PT, Y_AXIS); - m.add_molecule(d); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 0.5 PT, Y_AXIS); + m.add_stencil (d); } } else if (sym == "Bayanbase") { - Molecule r = afm_find("scripts-accBayanbase"); - m.add_molecule(r); - if (reg.left_str(1) == "T") + Stencil r = fm->find_by_name ("accordion-accBayanbase"); + m.add_stencil (r); + if (reg.left_string (1) == "T") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 2.5 PT, Y_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-1); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 2.5 PT, Y_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-1); } /* include 4' reed just for completeness. You don't want to use this. */ - if (reg.left_str(1) == "F") + if (reg.left_string (1) == "F") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 1.5 PT, Y_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-1); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 1.5 PT, Y_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-1); } - if (reg.left_str(2) == "EE") + if (reg.left_string (2) == "EE") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 0.5 PT, Y_AXIS); - d.translate_axis(0.4 * interline_f PT, X_AXIS); - m.add_molecule(d); - d.translate_axis(-0.8 * interline_f PT, X_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-2); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 0.5 PT, Y_AXIS); + d.translate_axis (0.4 * staff_space PT, X_AXIS); + m.add_stencil (d); + d.translate_axis (-0.8 * staff_space PT, X_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-2); } - if (reg.left_str(1) == "E") + if (reg.left_string (1) == "E") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 0.5 PT, Y_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-1); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 0.5 PT, Y_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-1); } } else if (sym == "Stdbase") { - Molecule r = afm_find("scripts-accStdbase"); - m.add_molecule(r); - if (reg.left_str(1) == "T") + Stencil r = fm->find_by_name ("accordion-accStdbase"); + m.add_stencil (r); + if (reg.left_string (1) == "T") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 3.5 PT, Y_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-1); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 3.5 PT, Y_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-1); } - if (reg.left_str(1) == "F") + if (reg.left_string (1) == "F") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 2.5 PT, Y_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-1); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 2.5 PT, Y_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-1); } - if (reg.left_str(1) == "M") + if (reg.left_string (1) == "M") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 2 PT, Y_AXIS); - d.translate_axis(interline_f PT, X_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-1); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 2 PT, Y_AXIS); + d.translate_axis (staff_space PT, X_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-1); } - if (reg.left_str(1) == "E") + if (reg.left_string (1) == "E") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 1.5 PT, Y_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-1); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 1.5 PT, Y_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-1); } - if (reg.left_str(1) == "S") + if (reg.left_string (1) == "S") { - Molecule d = afm_find("scripts-accDot"); - d.translate_axis(interline_f * 0.5 PT, Y_AXIS); - m.add_molecule(d); - reg = reg.right_str(reg.length_i()-1); + Stencil d = fm->find_by_name ("accordion-accDot"); + d.translate_axis (staff_space * 0.5 PT, Y_AXIS); + m.add_stencil (d); + reg = reg.right_string (reg.length ()-1); } } /* ugh maybe try to use regular font for S.B. and B.B and only use one font for the rectangle */ else if (sym == "SB") { - Molecule r = afm_find("scripts-accSB"); - m.add_molecule(r); + Stencil r = fm->find_by_name ("accordion-accSB"); + m.add_stencil (r); } else if (sym == "BB") { - Molecule r = afm_find("scripts-accBB"); - m.add_molecule(r); + Stencil r = fm->find_by_name ("accordion-accBB"); + m.add_stencil (r); } else if (sym == "OldEE") { - Molecule r = afm_find("scripts-accOldEE"); - m.add_molecule(r); + Stencil r = fm->find_by_name ("accordion-accOldEE"); + m.add_stencil (r); } else if (sym == "OldEES") { - Molecule r = afm_find("scripts-accOldEES"); - m.add_molecule(r); + Stencil r = fm->find_by_name ("accordion-accOldEES"); + m.add_stencil (r); } return m; } + +Stencil +Lookup::repeat_slash (Real w, Real s, Real t) +{ + SCM wid = gh_double2scm (w); + SCM sl = gh_double2scm (s); + SCM thick = gh_double2scm (t); + SCM slashnodot = scm_list_n (ly_symbol2scm ("repeat-slash"), + wid, sl, thick, SCM_UNDEFINED); + + Box b (Interval (0, w + sqrt (sqr(t/s) + sqr (t))), + Interval (0, w * s)); + + return Stencil (b, slashnodot); // http://slashnodot.org +} + + +Stencil +Lookup::bracket (Axis a, Interval iv, Real thick, Real protude, Real blot) +{ + Box b; + Axis other = Axis((a+1)%2); + b[a] = iv; + b[other] = Interval(-1, 1) * thick * 0.5; + + Stencil m = round_filled_box (b, blot); + + b[a] = Interval (iv[UP] - thick, iv[UP]); + Interval oi = Interval (-thick/2, thick/2 + fabs (protude)) ; + oi *= sign (protude); + b[other] = oi; + m.add_stencil (round_filled_box (b, blot)); + b[a] = Interval (iv[DOWN], iv[DOWN] +thick); + m.add_stencil (round_filled_box (b,blot)); + + return m; +} + +Stencil +Lookup::triangle (Interval iv, Real thick, Real protude) +{ + Box b ; + b[X_AXIS] = iv; + b[Y_AXIS] = Interval (0 ? protude); + + SCM s = scm_list_n (ly_symbol2scm ("symmetric-x-triangle"), + gh_double2scm (thick), + gh_double2scm (iv.length()), + gh_double2scm (protude), SCM_UNDEFINED); + + return Stencil (b, s); +} + + +/* + TODO: use rounded boxes. + */ +LY_DEFINE(ly_bracket ,"ly:bracket", + 4, 0, 0, + (SCM a, SCM iv, SCM t, SCM p), + "Make a bracket in direction @var{a}. The extent of the bracket is " + "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(gh_number_p (t), a, SCM_ARG3, __FUNCTION__, "number") ; + SCM_ASSERT_TYPE(gh_number_p (p), a, SCM_ARG4, __FUNCTION__, "number") ; + + + return Lookup::bracket ((Axis)gh_scm2int (a), ly_scm2interval (iv), + gh_scm2double (t), + gh_scm2double (p), + gh_scm2double (t)).smobbed_copy (); +} + + + +LY_DEFINE(ly_filled_box ,"ly:round-filled-box", + 3, 0, 0, + (SCM xext, SCM yext, SCM blot), + "Make a filled-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(gh_number_p (blot), blot, SCM_ARG3, __FUNCTION__, "number") ; + + return Lookup::round_filled_box (Box (ly_scm2interval (xext), ly_scm2interval (yext)), + gh_scm2double (blot)).smobbed_copy (); +} +