cinelerra-5.0/cinelerra/recordlabel.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "clip.h"
  23 #include "file.h"
  24 #include "labels.h"
  25 #include "recordlabel.h"
  26
  27
  28 RecordLabel::RecordLabel(double position)
  29  : ListItem<RecordLabel>()
  30 {
  31         this->position = position;
  32 }
  33
  34 RecordLabel::~RecordLabel()
  35 {
  36 }
  37
  38
  39 RecordLabels::RecordLabels()
  40  : List<RecordLabel>()
  41 {
  42 }
  43
  44 RecordLabels::RecordLabels(File *file)
  45  : List<RecordLabel>()
  46 {
  47         int cell_no = 0;
  48         double last_position = -1.;
  49         double position;
  50         while( !file->get_cell_time(++cell_no, position) ) {
  51                 if( position > last_position )
  52                         append(new RecordLabel(last_position=position));
  53         }
  54 }
  55
  56 RecordLabels::~RecordLabels()
  57 {
  58         delete_labels();
  59 }
  60
  61 int RecordLabels::delete_labels()
  62 {
  63         RecordLabel *current, *next_;
  64         for(current = first; current; current = next_)
  65         {
  66                 next_ = NEXT;
  67                 remove(current);
  68         }
  69         return 0;
  70 }
  71
  72 int RecordLabels::toggle_label(double position)
  73 {
  74         RecordLabel *current;
  75 // find label the position is after
  76         for(current = first;
  77                 current && current->position < position;
  78                 current = NEXT)
  79         {
  80                 ;
  81         }
  82
  83         if(current)
  84         {
  85 //printf("position %ld current->position %ld current->original %d\n", position, current->position,  current->original);
  86                 if(EQUIV(current->position, position))
  87                 {
  88 // remove it
  89                         remove(current);
  90                 }
  91                 else
  92                 {
  93 // insert before it
  94                         current = insert_before(current);
  95                         current->position = position;
  96                 }
  97         }
  98         else
  99         {           // insert after last
 100 //printf("position %ld\n", position);
 101                 append(new RecordLabel(position));
 102         }
 103         return 0;
 104 }
 105
 106 double RecordLabels::get_prev_label(double position)
 107 {
 108         RecordLabel *current;
 109
 110         for(current = last;
 111                 current && current->position > position;
 112                 current = PREVIOUS)
 113         {
 114                 ;
 115         }
 116 //printf("%ld\n", current->position);
 117         if(current && current->position <= position)
 118                 return current->position;
 119         else
 120                 return -1;
 121         return 0;
 122 }
 123
 124 double RecordLabels::get_next_label(double position)
 125 {
 126         RecordLabel *current;
 127
 128         for(current = first;
 129                 current && current->position <= position;
 130                 current = NEXT)
 131         {
 132                 ;
 133         }
 134         if(current && current->position >= position) return current->position; else return -1;
 135         return 0;
 136 }
 137
 138 double RecordLabels::goto_prev_label(double position)
 139 {
 140         RecordLabel *current;
 141
 142         for(current = last;
 143                 current && current->position >= position;
 144                 current = PREVIOUS)
 145         {
 146                 ;
 147         }
 148 //printf("%ld\n", current->position);
 149         if(current && current->position <= position) return current->position; else return -1;
 150         return 0;
 151 }
 152
 153 double RecordLabels::goto_next_label(double position)
 154 {
 155         RecordLabel *current;
 156
 157         for(current = first;
 158                 current && current->position <= position;
 159                 current = NEXT)
 160         {
 161                 ;
 162         }
 163         if(current && current->position >= position) return current->position; else return -1;
 164         return 0;
 165 }
 166