src/staff-column.cc

   1 /*
   2   staff-column.cc -- implement Staff_column
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8 #include "staff.hh"
   9 #include "voice.hh"
  10 #include "time-description.hh"
  11 #include "score-column.hh"
  12 #include "staff-column.hh"
  13 #include "commandrequest.hh"
  14 #include "musicalrequest.hh"
  15 #include "interval.hh"
  16 #include "pscore.hh"
  17 #include "item.hh"
  18 #include "pcol.hh"
  19 #include "voice-element.hh"
  20
  21 void
  22 Staff_column::OK() const
  23 {
  24 #ifndef NDEBUG
  25     assert (command_column_l_->when() == musical_column_l_->when());
  26 #endif
  27 }
  28
  29 Moment
  30 Staff_column::when() const
  31 {
  32     return (command_column_l_)?
  33         command_column_l_->when():
  34         musical_column_l_->when();
  35 }
  36
  37 void
  38 Staff_column::add(Voice_element*ve)
  39 {
  40     for (iter_top(ve->reqs,j); j.ok(); j++) {
  41         if (j->command()) {
  42             Command_req * c_l = j->command();
  43             if (c_l->timing()) {
  44                 timing_req_l_arr_.push(j->command()->timing());
  45             }
  46             if (c_l->groupchange())
  47                 creationreq_l_arr_.push(c_l);
  48             else if (!c_l->barcheck() &&  !c_l->partial() &&
  49                 !c_l->measuregrouping())
  50                 setup_one_request(j);   // no need to bother children
  51         } else {
  52             if (j->rhythmic()) {
  53                 musical_column_l_->add_duration(j->rhythmic()->duration());
  54             }
  55             if (!j->musical()->skip())
  56                 setup_one_request(j);
  57         }
  58     }
  59 }
  60
  61 Staff_column::Staff_column()
  62 {
  63     musical_column_l_ = 0;
  64     command_column_l_ = 0;
  65     staff_l_ = 0;
  66 }
  67
  68
  69
  70
  71 Staff_column::~Staff_column()
  72 {
  73 }
  74
  75 void
  76 Staff_column::set_cols(Score_column*c1, Score_column*c2)
  77 {
  78     command_column_l_ = c1;
  79     musical_column_l_ = c2;
  80 }
  81
  82 void
  83 Staff_column::setup_one_request(Request * j)
  84 {
  85     if (j->command()) // ugh
  86         commandreq_l_arr_.push(j);
  87     else if (j->musical())
  88         musicalreq_l_arr_.push(j);
  89 }
  90
  91 void
  92 Staff_column::typeset_musical_item(Item*i)
  93 {
  94     assert(i);
  95     Score_column * scorecolumn_l = musical_column_l_;
  96     musical_column_l_->pcol_l_->pscore_l_->typeset_item(i, scorecolumn_l->pcol_l_,
  97                                                         staff_l_->pstaff_l_);
  98 }
  99
 100 /**
 101   align items in #item_l_arr#,
 102
 103   @return the width of the items after aligning.
 104  */
 105 Interval
 106 align_items(Array<Item*> item_l_arr)
 107 {
 108     Interval wid(0,0);
 109     for  (int i =0; i < item_l_arr.size(); i++) {
 110         Interval item_width= item_l_arr[i]->width();
 111         Real dx =wid.right - item_width.left;
 112         item_width += dx;
 113         item_l_arr[i]->translate(Offset(dx ,0));
 114         wid.unite(item_width);
 115     }
 116     return wid;
 117 }
 118
 119 void
 120 translate_items(Real x,  Array<Item*> item_l_arr)
 121 {
 122     for  (int i =0; i < item_l_arr.size(); i++)
 123         item_l_arr[i]->translate(Offset(x, 0));
 124 }
 125 /*
 126   UGR
 127   This still sux
 128   */
 129 void
 130 Staff_column::typeset_breakable_items(Array<Item *> &pre_p_arr,
 131                                       Array<Item *> &nobreak_p_arr,
 132                                       Array<Item *> &post_p_arr)
 133 {
 134     PCol * c= command_column_l_->pcol_l_;
 135     PScore *ps_l=command_column_l_->pcol_l_->pscore_l_;
 136
 137     if (!c->breakable_b()) {
 138         for  (int i =0; i < pre_p_arr.size(); i++)
 139             delete pre_p_arr[i];
 140         pre_p_arr.set_size(0);
 141         for  (int i =0; i < post_p_arr.size(); i++)
 142             delete post_p_arr[i];
 143         post_p_arr.set_size(0);
 144     }
 145
 146
 147     for  (int i =0; i < pre_p_arr.size(); i++) {
 148         ps_l->typeset_item(pre_p_arr[i], c, staff_l_->pstaff_l_,0);
 149     }
 150     for  (int i =0; i < nobreak_p_arr.size(); i++) {
 151         ps_l->typeset_item(nobreak_p_arr[i], c, staff_l_->pstaff_l_,1);
 152     }
 153     for  (int i =0; i < post_p_arr.size(); i++) {
 154         ps_l->typeset_item(post_p_arr[i], c, staff_l_->pstaff_l_,2);
 155     }
 156
 157     Interval pre_wid= align_items(pre_p_arr);
 158     translate_items( -pre_wid.right, pre_p_arr);
 159     align_items(nobreak_p_arr);
 160     Interval post_wid =align_items(post_p_arr);
 161     translate_items (-post_wid.left , post_p_arr);
 162
 163     pre_p_arr.set_size(0);
 164     post_p_arr.set_size(0);
 165     nobreak_p_arr.set_size(0);
 166 }