lily/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 "proto.hh"
   9 #include "plist.hh"
  10 #include "staff.hh"
  11 #include "voice.hh"
  12 #include "time-description.hh"
  13 #include "score-column.hh"
  14 #include "staff-column.hh"
  15 #include "commandrequest.hh"
  16 #include "musicalrequest.hh"
  17 #include "interval.hh"
  18 #include "pscore.hh"
  19 #include "item.hh"
  20 #include "pcol.hh"
  21 #include "voice-element.hh"
  22
  23 void
  24 Staff_column::OK() const
  25 {
  26 #ifndef NDEBUG
  27     assert (command_column_l_->when() == musical_column_l_->when());
  28 #endif
  29 }
  30
  31 Moment
  32 Staff_column::when() const
  33 {
  34     return (command_column_l_)?
  35         command_column_l_->when():
  36         musical_column_l_->when();
  37 }
  38
  39 void
  40 Staff_column::add(Voice_element*ve)
  41 {
  42     for (iter_top(ve->reqs,j); j.ok(); j++) {
  43         if (j->command()) {
  44             Command_req * c_l = j->command();
  45             if (c_l->timing()) {
  46                 timing_req_l_arr_.push(j->command()->timing());
  47             }
  48             if (c_l->groupchange())
  49                 creationreq_l_arr_.push(c_l);
  50             else if (!c_l->barcheck() &&  !c_l->partial() &&
  51                 !c_l->measuregrouping())
  52                 setup_one_request(j);   // no need to bother children
  53         } else {
  54             if (j->rhythmic()) {
  55                 musical_column_l_->add_duration(j->rhythmic()->duration());
  56             }
  57             if (!j->musical()->skip())
  58                 setup_one_request(j);
  59         }
  60     }
  61 }
  62
  63 Staff_column::Staff_column()
  64 {
  65     musical_column_l_ = 0;
  66     command_column_l_ = 0;
  67     staff_l_ = 0;
  68 }
  69
  70
  71
  72
  73 Staff_column::~Staff_column()
  74 {
  75 }
  76
  77 void
  78 Staff_column::set_cols(Score_column*c1, Score_column*c2)
  79 {
  80     command_column_l_ = c1;
  81     musical_column_l_ = c2;
  82 }
  83
  84 void
  85 Staff_column::setup_one_request(Request * j)
  86 {
  87     if (j->command()) // ugh
  88         commandreq_l_arr_.push(j);
  89     else if (j->musical())
  90         musicalreq_l_arr_.push(j);
  91 }
  92
  93 void
  94 Staff_column::typeset_musical_item(Item*i)
  95 {
  96     assert(i);
  97     Score_column * scorecolumn_l = musical_column_l_;
  98     musical_column_l_->pcol_l_->pscore_l_->typeset_item(i, scorecolumn_l->pcol_l_,
  99                                                         staff_l_->pstaff_l_);
 100 }
 101
 102 /**
 103   align items in #item_l_arr#,
 104
 105   @return the width of the items after aligning.
 106  */
 107 Interval
 108 align_items(Array<Item*> item_l_arr)
 109 {
 110     Interval wid(0,0);
 111     for  (int i =0; i < item_l_arr.size(); i++) {
 112         Interval item_width= item_l_arr[i]->width();
 113         Real dx =wid.right - item_width.left;
 114         item_width += dx;
 115         item_l_arr[i]->translate(Offset(dx ,0));
 116         wid.unite(item_width);
 117     }
 118     return wid;
 119 }
 120
 121 void
 122 translate_items(Real x,  Array<Item*> item_l_arr)
 123 {
 124     for  (int i =0; i < item_l_arr.size(); i++)
 125         item_l_arr[i]->translate(Offset(x, 0));
 126 }
 127 /*
 128   UGR
 129   This still sux
 130   */
 131 void
 132 Staff_column::typeset_breakable_items(Array<Item *> &pre_p_arr,
 133                                       Array<Item *> &nobreak_p_arr,
 134                                       Array<Item *> &post_p_arr)
 135 {
 136     PCol * c= command_column_l_->pcol_l_;
 137     PScore *ps_l=command_column_l_->pcol_l_->pscore_l_;
 138
 139     if (!c->breakable_b()) {
 140         for  (int i =0; i < pre_p_arr.size(); i++)
 141             delete pre_p_arr[i];
 142         pre_p_arr.set_size(0);
 143         for  (int i =0; i < post_p_arr.size(); i++)
 144             delete post_p_arr[i];
 145         post_p_arr.set_size(0);
 146     }
 147
 148
 149     for  (int i =0; i < pre_p_arr.size(); i++) {
 150         ps_l->typeset_item(pre_p_arr[i], c, staff_l_->pstaff_l_,0);
 151     }
 152     for  (int i =0; i < nobreak_p_arr.size(); i++) {
 153         ps_l->typeset_item(nobreak_p_arr[i], c, staff_l_->pstaff_l_,1);
 154     }
 155     for  (int i =0; i < post_p_arr.size(); i++) {
 156         ps_l->typeset_item(post_p_arr[i], c, staff_l_->pstaff_l_,2);
 157     }
 158
 159     Interval pre_wid= align_items(pre_p_arr);
 160     translate_items( -pre_wid.right, pre_p_arr);
 161     align_items(nobreak_p_arr);
 162     Interval post_wid =align_items(post_p_arr);
 163     translate_items (-post_wid.left , post_p_arr);
 164
 165     pre_p_arr.set_size(0);
 166     post_p_arr.set_size(0);
 167     nobreak_p_arr.set_size(0);
 168 }