X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Flookup.cc;h=207dd06bf444e242740ae7dc5ac11cada8afad2d;hb=f2a614956b218b9e500020ac45a0c17301968428;hp=567cb9dd6d8f4e9d3748bc063e3cb3437449dda8;hpb=136bdc3c4835942f396d57ac78df71d97c43d3e8;p=lilypond.git diff --git a/lily/lookup.cc b/lily/lookup.cc index 567cb9dd6d..207dd06bf4 100644 --- a/lily/lookup.cc +++ b/lily/lookup.cc @@ -1,35 +1,45 @@ /* - lookup.cc -- implement simple Lookup methods. + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter - - (c) 1997--2005 Han-Wen Nienhuys + Copyright (C) 1997--2010 Han-Wen Nienhuys Jan Nieuwenhuizen + + LilyPond is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + LilyPond is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . */ #include "lookup.hh" -#include +#include #include +using namespace std; #include "line-interface.hh" #include "warn.hh" #include "dimensions.hh" #include "bezier.hh" -#include "string-convert.hh" #include "file-path.hh" #include "main.hh" #include "lily-guile.hh" -#include "font-metric.hh" Stencil Lookup::dot (Offset p, Real radius) { SCM at = (scm_list_n (ly_symbol2scm ("dot"), - scm_make_real (p[X_AXIS]), - scm_make_real (p[Y_AXIS]), - scm_make_real (radius), + scm_from_double (p[X_AXIS]), + scm_from_double (p[Y_AXIS]), + scm_from_double (radius), SCM_UNDEFINED)); Box box; box.add_point (p - Offset (radius, radius)); @@ -37,73 +47,81 @@ Lookup::dot (Offset p, Real radius) return Stencil (box, at); } -/* - * Horizontal Slope: - * - * /| ^ - * / | | - * / | | height - * / | | - * / | v - * | / - * | / - * (0, 0)x /slope = dy/dx - * | / - * |/ - * - * <-----> - * width - */ Stencil Lookup::beam (Real slope, Real width, Real thick, Real blot) { - Real height = slope * width; - Real min_y = min (0., height) - thick / 2; - Real max_y = max (0., height) + thick / 2; - - Box b (Interval (0, width), - Interval (min_y, max_y)); - - SCM at = scm_list_n (ly_symbol2scm ("beam"), - scm_make_real (width), - scm_make_real (slope), - scm_make_real (thick), - scm_make_real (blot), - SCM_UNDEFINED); - return Stencil (b, at); -} + Box b; -Stencil -Lookup::dashed_slur (Bezier b, Real thick, Real dash_period, Real dash_fraction) -{ - SCM l = SCM_EOL; + Offset p; - Real on = dash_fraction * dash_period; - Real off = dash_period - on; + p = Offset (0, thick / 2); + b.add_point (p); + p += Offset (1, -1) * (blot / 2); - for (int i = 4; i--;) - { - l = scm_cons (ly_offset2scm (b.control_[i]), l); - } + SCM points = SCM_EOL; - SCM at = (scm_list_n (ly_symbol2scm ("dashed-slur"), - scm_make_real (thick), - scm_make_real (on), - scm_make_real (off), - ly_quote_scm (l), - SCM_UNDEFINED)); + points = scm_cons (scm_from_double (p[X_AXIS]), + scm_cons (scm_from_double (p[Y_AXIS]), + points)); - Box box (Interval (0, 0), Interval (0, 0)); - return Stencil (box, at); + p = Offset (0, -thick / 2); + b.add_point (p); + p += Offset (1, 1) * (blot / 2); + + points = scm_cons (scm_from_double (p[X_AXIS]), + scm_cons (scm_from_double (p[Y_AXIS]), + points)); + + p = Offset (width, width * slope - thick / 2); + b.add_point (p); + p += Offset (-1, 1) * (blot / 2); + + points = scm_cons (scm_from_double (p[X_AXIS]), + scm_cons (scm_from_double (p[Y_AXIS]), + points)); + + p = Offset (width, width * slope + thick / 2); + b.add_point (p); + p += Offset (-1, -1) * (blot / 2); + + points = scm_cons (scm_from_double (p[X_AXIS]), + scm_cons (scm_from_double (p[Y_AXIS]), + points)); + + SCM expr = scm_list_n (ly_symbol2scm ("polygon"), + ly_quote_scm (points), + scm_from_double (blot), + SCM_BOOL_T, + SCM_UNDEFINED); + + return Stencil (b, expr); +} + +Stencil +Lookup::rotated_box (Real slope, Real width, Real thick, Real blot) +{ + vector pts; + Offset rot (1, slope); + + thick -= 2*blot; + width -= 2*blot; + rot /= sqrt (1 + slope*slope); + pts.push_back (Offset (0, -thick / 2) * rot); + pts.push_back (Offset (width, -thick / 2) * rot); + pts.push_back (Offset (width, thick / 2) * rot); + pts.push_back (Offset (0, thick / 2) * rot); + return Lookup::round_filled_polygon (pts, blot); } Stencil Lookup::horizontal_line (Interval w, Real th) { - SCM at = scm_list_n (ly_symbol2scm ("horizontal-line"), - scm_make_real (w[LEFT]), - scm_make_real (w[RIGHT]), - scm_make_real (th), + SCM at = scm_list_n (ly_symbol2scm ("draw-line"), + scm_from_double (th), + scm_from_double (w[LEFT]), + scm_from_double (0), + scm_from_double (w[RIGHT]), + scm_from_double (0), SCM_UNDEFINED); Box box; @@ -116,20 +134,13 @@ Lookup::horizontal_line (Interval w, Real th) Stencil Lookup::blank (Box b) { - return Stencil (b, scm_makfrom0str ("")); + return Stencil (b, scm_from_locale_string ("")); } Stencil Lookup::filled_box (Box b) { - SCM at = (scm_list_n (ly_symbol2scm ("filledbox"), - scm_make_real (-b[X_AXIS][LEFT]), - scm_make_real (b[X_AXIS][RIGHT]), - scm_make_real (-b[Y_AXIS][DOWN]), - scm_make_real (b[Y_AXIS][UP]), - SCM_UNDEFINED)); - - return Stencil (b, at); + return round_filled_box (b, 0.0); } /* @@ -163,20 +174,16 @@ Stencil Lookup::round_filled_box (Box b, Real blotdiameter) { if (b.x ().length () < blotdiameter) - { - blotdiameter = b.x ().length (); - } + blotdiameter = b.x ().length (); if (b.y ().length () < blotdiameter) - { - blotdiameter = b.y ().length (); - } + blotdiameter = b.y ().length (); SCM at = (scm_list_n (ly_symbol2scm ("round-filled-box"), - scm_make_real (-b[X_AXIS][LEFT]), - scm_make_real (b[X_AXIS][RIGHT]), - scm_make_real (-b[Y_AXIS][DOWN]), - scm_make_real (b[Y_AXIS][UP]), - scm_make_real (blotdiameter), + scm_from_double (-b[X_AXIS][LEFT]), + scm_from_double (b[X_AXIS][RIGHT]), + scm_from_double (-b[Y_AXIS][DOWN]), + scm_from_double (b[Y_AXIS][UP]), + scm_from_double (blotdiameter), SCM_UNDEFINED)); return Stencil (b, at); @@ -223,23 +230,25 @@ Lookup::round_filled_box (Box b, Real blotdiameter) * shrinked polygon). --jr */ Stencil -Lookup::round_filled_polygon (Array points, Real blotdiameter) +Lookup::round_filled_polygon (vector const &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 ();) + +#ifndef NDEBUG + /* remove consecutive duplicate points */ + for (vsize i = 0; i < points.size (); i++) { - int next_i = (i + 1) % points.size (); - Real d = (points[i] - points[next_i]).length (); + int next = (i + 1) % points.size (); + Real d = (points[i] - points[next]).length (); if (d < epsilon) - points.del (next_i); - else - i++; + programming_error ("Polygon should not have duplicate points"); } +#endif /* special cases: degenerated polygons */ if (points.size () == 0) @@ -250,10 +259,10 @@ Lookup::round_filled_polygon (Array points, Real blotdiameter) 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 ()); + vector shrunk_points; + shrunk_points.resize (points.size ()); bool ccw = 1; // true, if three adjacent points are counterclockwise ordered - for (int i = 0; i < points.size (); i++) + for (vsize i = 0; i < points.size (); i++) { int i0 = i; int i1 = (i + 1) % points.size (); @@ -292,27 +301,27 @@ Lookup::round_filled_polygon (Array points, Real blotdiameter) } else p13 = (0.5 * blotdiameter / d) * p13n; - shrinked_points[i1] = p1 + ((ccw) ? p13 : -p13); + shrunk_points[i1] = p1 + ((ccw) ? p13 : -p13); } /* build scm expression and bounding box */ - SCM shrinked_points_scm = SCM_EOL; + SCM shrunk_points_scm = SCM_EOL; Box box; - for (int i = 0; i < shrinked_points.size (); i++) + for (vsize i = 0; i < shrunk_points.size (); i++) { - SCM x = scm_make_real (shrinked_points[i][X_AXIS]); - SCM y = scm_make_real (shrinked_points[i][Y_AXIS]); - shrinked_points_scm = scm_cons (x, scm_cons (y, shrinked_points_scm)); + SCM x = scm_from_double (shrunk_points[i][X_AXIS]); + SCM y = scm_from_double (shrunk_points[i][Y_AXIS]); + shrunk_points_scm = scm_cons (x, scm_cons (y, shrunk_points_scm)); box.add_point (points[i]); } SCM polygon_scm = scm_list_n (ly_symbol2scm ("polygon"), - ly_quote_scm (shrinked_points_scm), - scm_make_real (blotdiameter), + ly_quote_scm (shrunk_points_scm), + scm_from_double (blotdiameter), SCM_BOOL_T, SCM_UNDEFINED); Stencil polygon = Stencil (box, polygon_scm); - shrinked_points.clear (); + shrunk_points.clear (); return polygon; } @@ -345,48 +354,75 @@ Lookup::frame (Box b, Real thick, Real blot) Make a smooth curve along the points */ Stencil -Lookup::slur (Bezier curve, Real curvethick, Real linethick) +Lookup::slur (Bezier curve, Real curvethick, Real linethick, + SCM dash_details) { + Stencil return_value; + + /* + calculate the offset for the two beziers that make the sandwich + for the slur + */ 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]); - - /* - 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 = scm_cons (scontrols[indices[i]], list); + + if (!scm_is_pair (dash_details)) + { + /* solid slur */ + return_value = bezier_sandwich (back, curve, linethick); } - - SCM at = (scm_list_n (ly_symbol2scm ("bezier-sandwich"), - ly_quote_scm (list), - scm_make_real (linethick), - SCM_UNDEFINED)); - Box b (curve.extent (X_AXIS), - curve.extent (Y_AXIS)); - - b[X_AXIS].unite (back.extent (X_AXIS)); - b[Y_AXIS].unite (back.extent (Y_AXIS)); - - return Stencil (b, at); + else + { + /* dashed or combination slur */ + int num_segments = scm_to_int (scm_length (dash_details)); + for (int i=0; i points; + Real blotdiameter = 0.0; - if (sym == "Discant") - { - Stencil r = fm->find_by_name ("accordion.accDiscant"); - m.add_stencil (r); - if (reg.left_string (1) == "F") - { - 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_string (3) == "EEE") - { - eflag = 0x07; - reg = reg.right_string (reg.length () - 3); - } - else if (reg.left_string (2) == "EE") - { - eflag = 0x05; - reg = reg.right_string (reg.length () - 2); - } - else if (reg.left_string (2) == "Eh") - { - eflag = 0x04; - reg = reg.right_string (reg.length () - 2); - } - else if (reg.left_string (1) == "E") - { - eflag = 0x02; - reg = reg.right_string (reg.length () - 1); - } - if (eflag & 0x02) - { - 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) - { - 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) - { - 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_string (2) == "SS") - { - 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_string (1) == "S") - { - 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") - { - Stencil r = fm->find_by_name ("accordion.accFreebase"); - m.add_stencil (r); - if (reg.left_string (1) == "F") - { - 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") - { - 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") - { - Stencil r = fm->find_by_name ("accordion.accBayanbase"); - m.add_stencil (r); - if (reg.left_string (1) == "T") - { - 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_string (1) == "F") - { - 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_string (2) == "EE") - { - 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_string (1) == "E") - { - 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") - { - Stencil r = fm->find_by_name ("accordion.accStdbase"); - m.add_stencil (r); - if (reg.left_string (1) == "T") - { - 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_string (1) == "F") - { - 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_string (1) == "M") - { - 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_string (1) == "E") - { - 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_string (1) == "S") - { - 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") - { - Stencil r = fm->find_by_name ("accordion.accSB"); - m.add_stencil (r); - } - else if (sym == "BB") - { - Stencil r = fm->find_by_name ("accordion.accBB"); - m.add_stencil (r); - } - else if (sym == "OldEE") - { - Stencil r = fm->find_by_name ("accordion.accOldEE"); - m.add_stencil (r); - } - else if (sym == "OldEES") - { - Stencil r = fm->find_by_name ("accordion.accOldEES"); - m.add_stencil (r); - } - return m; -} + Offset p1 (0, 0); + Offset p2 (w, w * s); -Stencil -Lookup::repeat_slash (Real w, Real s, Real t) -{ - SCM wid = scm_make_real (w); - SCM sl = scm_make_real (s); - SCM thick = scm_make_real (t); + return Lookup::round_filled_polygon (points, blotdiameter); +#endif + + SCM wid = scm_from_double (w); + SCM sl = scm_from_double (s); + SCM thick = scm_from_double (t); SCM slashnodot = scm_list_n (ly_symbol2scm ("repeat-slash"), wid, sl, thick, SCM_UNDEFINED); @@ -657,7 +503,7 @@ Lookup::repeat_slash (Real w, Real s, Real t) } Stencil -Lookup::bracket (Axis a, Interval iv, Real thick, Real protude, Real blot) +Lookup::bracket (Axis a, Interval iv, Real thick, Real protrude, Real blot) { Box b; Axis other = Axis ((a + 1)%2); @@ -667,8 +513,8 @@ Lookup::bracket (Axis a, Interval iv, Real thick, Real protude, Real blot) 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); + Interval oi = Interval (-thick / 2, thick / 2 + fabs (protrude)); + oi *= sign (protrude); b[other] = oi; m.add_stencil (round_filled_box (b, blot)); b[a] = Interval (iv[DOWN], iv[DOWN] + thick); @@ -678,23 +524,36 @@ Lookup::bracket (Axis a, Interval iv, Real thick, Real protude, Real blot) } Stencil -Lookup::triangle (Interval iv, Real thick, Real protude) +Lookup::triangle (Interval iv, Real thick, Real protrude) { Box b; b[X_AXIS] = Interval (0, iv.length ()); - b[Y_AXIS] = Interval (min (0., protude), max (0.0, protude)); + b[Y_AXIS] = Interval (min (0., protrude), max (0.0, protrude)); - Offset z1 (iv[LEFT], 0); - Offset z2 (iv[RIGHT], 0); - Offset z3 ((z1 + z2)[X_AXIS] / 2, protude); + vector points; + points.push_back (Offset (iv[LEFT], 0)); + points.push_back (Offset (iv[RIGHT], 0)); + points.push_back (Offset (iv.center (), protrude)); + points.push_back (Offset (iv[LEFT], 0)); // close triangle - /* - TODO: move Triangle to Line_interface ? - */ - Stencil tri = Line_interface::make_line (thick, z1, z2); - tri.add_stencil (Line_interface::make_line (thick, z2, z3)); - tri.add_stencil (Line_interface::make_line (thick, z3, z1)); + return points_to_line_stencil (thick, points); - return tri; } + + +Stencil +Lookup::points_to_line_stencil (Real thick, vector const &points) +{ + Stencil ret; + for (vsize i = 1; i < points.size (); i++) + { + if (points[i-1].is_sane () && points[i].is_sane ()) + { + Stencil line + = Line_interface::make_line (thick, points[i-1], points[i]); + ret.add_stencil (line); + } + } + return ret; +}