cinelerra/strack.C

   1 #include "clip.h"
   2 #include "edit.h"
   3 #include "edits.h"
   4 #include "edl.h"
   5 #include "edlsession.h"
   6 #include "datatype.h"
   7 #include "filexml.h"
   8 #include "localsession.h"
   9 #include "mainsession.h"
  10 #include "strack.h"
  11 #include "theme.h"
  12 #include "trackcanvas.h"
  13 #include "tracks.h"
  14
  15 #include <string.h>
  16
  17 STrack::STrack(EDL *edl, Tracks *tracks)
  18  : Track(edl, tracks)
  19 {
  20         data_type = TRACK_SUBTITLE;
  21 }
  22
  23 STrack::~STrack()
  24 {
  25 }
  26
  27
  28 // Used by PlaybackEngine
  29 void STrack::synchronize_params(Track *track)
  30 {
  31         Track::synchronize_params(track);
  32 }
  33
  34 int STrack::copy_settings(Track *track)
  35 {
  36         Track::copy_settings(track);
  37         return 0;
  38 }
  39
  40 int STrack::load_defaults(BC_Hash *defaults)
  41 {
  42         Track::load_defaults(defaults);
  43         return 0;
  44 }
  45
  46 void STrack::set_default_title()
  47 {
  48         Track *current = ListItem<Track>::list->first;
  49         int i;
  50         for(i = 0; current; current = NEXT)
  51         {
  52                 if(current->data_type == TRACK_SUBTITLE) i++;
  53         }
  54         sprintf(title, _("Subttl %d"), i);
  55 }
  56
  57 void STrack::create_objects()
  58 {
  59         Track::create_objects();
  60         automation = new SAutomation(edl, this);
  61         automation->create_objects();
  62         edits = new SEdits(edl, this);
  63 }
  64
  65 int STrack::vertical_span(Theme *theme)
  66 {
  67         int track_h = Track::vertical_span(theme);
  68         int patch_h = 0;
  69         return track_h + patch_h;
  70 }
  71
  72
  73 int64_t STrack::to_units(double position, int round)
  74 {
  75         if(round)
  76         {
  77                 return Units::round(position * edl->session->frame_rate);
  78         }
  79         else
  80         {
  81 // Kludge for rounding errors, just on a smaller scale than formal rounding
  82                 position *= edl->session->frame_rate;
  83                 return Units::to_int64(position);
  84         }
  85 }
  86
  87 double STrack::to_doubleunits(double position)
  88 {
  89         return position * edl->session->frame_rate;
  90 }
  91
  92
  93 double STrack::from_units(int64_t position)
  94 {
  95         return (double)position / edl->session->frame_rate;
  96 }
  97
  98
  99
 100
 101 int STrack::identical(int64_t sample1, int64_t sample2)
 102 {
 103 // Units of frames
 104         if(labs(sample1 - sample2) <= 1) return 1; else return 0;
 105 }
 106
 107 int STrack::save_header(FileXML *file)
 108 {
 109         file->tag.set_property("TYPE", "SUBTTL");
 110         return 0;
 111 }
 112
 113 int STrack::save_derived(FileXML *file)
 114 {
 115         file->append_newline();
 116         return 0;
 117 }
 118
 119 int STrack::load_header(FileXML *file, uint32_t load_flags)
 120 {
 121         return 0;
 122 }
 123
 124 int STrack::load_derived(FileXML *file, uint32_t load_flags)
 125 {
 126         return 0;
 127 }
 128
 129
 130 int STrack::get_dimensions(int pane_number,
 131         double &view_start,
 132         double &view_units,
 133         double &zoom_units)
 134 {
 135         view_start = edl->local_session->view_start[pane_number] * edl->session->frame_rate;
 136         view_units = 0;
 137 //      view_units = Units::toframes(tracks->view_samples(), mwindow->session->sample_rate, mwindow->session->frame_rate);
 138         zoom_units = edl->local_session->zoom_sample / edl->session->sample_rate * edl->session->frame_rate;
 139         return 0;
 140 }
 141
 142 int64_t STrack::length()
 143 {
 144         return edits->length();
 145 }
 146
 147 SEdit::SEdit(EDL *edl, Edits *edits)
 148  : Edit(edl, edits)
 149 {
 150         text[0] = 0;
 151 }
 152
 153 SEdit::~SEdit()
 154 {
 155 }
 156
 157
 158
 159 void SEdit::
 160 copy_from(Edit *edit)
 161 {
 162         Edit::copy_from(edit);
 163         SEdit *sedit = (SEdit*)edit;
 164         strcpy(text,sedit->text);
 165 }
 166
 167 int SEdit::load_properties_derived(FileXML *xml)
 168 {
 169         xml->tag.get_property("TEXT", text);
 170         return 0;
 171 }
 172
 173 int SEdit::copy_properties_derived(FileXML *xml, int64_t length_in_selection)
 174 {
 175         xml->tag.set_property("TEXT", text);
 176         return 0;
 177 }
 178
 179
 180 int SEdit::dump_derived()
 181 {
 182         return 0;
 183 }
 184
 185
 186 int64_t SEdit::get_source_end(int64_t default_)
 187 {
 188         return default_;   // Infinity
 189 }
 190