src/staffcolumn.cc

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