SetClipCommand.cpp

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/**********************************************************************
 
   Audacity - A Digital Audio Editor
   Copyright 1999-2018 Audacity Team
   License: wxwidgets
 
   James Crook
 
******************************************************************//*******************************************************************/
 
 
#include "SetClipCommand.h"
 
#include "CommandContext.h"
#include "CommandDispatch.h"
#include "MenuRegistry.h"
#include "../CommonCommandFlags.h"
#include "LoadCommands.h"
#include "../tracks/playabletrack/wavetrack/ui/WaveformAppearance.h"
#include "WaveTrack.h"
#include "SettingsVisitor.h"
#include "ShuttleGui.h"
 
const ComponentInterfaceSymbol SetClipCommand::Symbol
{ XO("Set Clip") };
 
namespace{ BuiltinCommandsModule::Registration< SetClipCommand > reg; }
 
SetClipCommand::SetClipCommand()
{
}
 
enum kColours
{
   kColour0,
   kColour1,
   kColour2,
   kColour3,
   nColours
};
 
static const EnumValueSymbol kColourStrings[nColours] =
{
   { wxT("Color0"), XO("Color 0") },
   { wxT("Color1"), XO("Color 1") },
   { wxT("Color2"), XO("Color 2") },
   { wxT("Color3"), XO("Color 3") },
};
 
 
template<bool Const>
bool SetClipCommand::VisitSettings( SettingsVisitorBase<Const> & S ){
   S.OptionalY( bHasContainsTime   ).Define(     mContainsTime,   wxT("At"),         0.0, 0.0, 100000.0 );
   S.OptionalN( bHasColour         ).DefineEnum( mColour,         wxT("Color"),      kColour0, kColourStrings, nColours );
   // Allowing a negative start time is not a mistake.
   // It will be used in demonstrating time before zero.
   S.OptionalN( bHasT0             ).Define(     mT0,             wxT("Start"),      0.0, -5.0, 1000000.0);
   return true;
};
bool SetClipCommand::VisitSettings( SettingsVisitor & S )
   { return VisitSettings<false>(S); }
 
bool SetClipCommand::VisitSettings( ConstSettingsVisitor & S )
   { return VisitSettings<true>(S); }
 
void SetClipCommand::PopulateOrExchange(ShuttleGui & S)
{
   S.AddSpace(0, 5);
 
   S.StartMultiColumn(3, wxALIGN_CENTER);
   {
      S.Optional( bHasContainsTime).TieNumericTextBox(  XXO("At:"),            mContainsTime );
      S.Optional( bHasColour      ).TieChoice(          XXO("Color:"),         mColour,
         Msgids( kColourStrings, nColours ) );
      S.Optional( bHasT0          ).TieNumericTextBox(  XXO("Start:"),         mT0 );
      S.Optional( bHasName        ).TieTextBox(         XXO("Name:"),          mName );
   }
   S.EndMultiColumn();
}
 
bool SetClipCommand::Apply(const CommandContext& context)
{
   for(const auto track : TrackList::Get(context.project))
   {
      if(!track->GetSelected())
         continue;
 
      // if no 'At' is specified, then any clip in any selected track will be set.
      track->TypeSwitch([&](WaveTrack &waveTrack) {
         for (const auto &interval : waveTrack.Intervals()) {
            if(!bHasContainsTime || 
               (interval->Start() <= mContainsTime &&
               interval->End() >= mContainsTime ))
            {
               // Inside this IF is where we actually apply the command
               if (bHasColour) {
                  for (const auto channel : interval->Channels())
                     WaveColorAttachment::Get(*channel).SetColorIndex(mColour);
               }
               // No validation of overlap yet.  We assume the user is sensible!
               if( bHasT0 )
                  interval->SetPlayStartTime(mT0);
               // \todo Use SetClip to move a clip between tracks too.
               if( bHasName )
                  interval->SetName(mName);
            }
         }
      } );
   }
   return true;
}
 
namespace {
using namespace MenuRegistry;
 
// Register menu items
 
AttachedItem sAttachment1{
   // Note that the PLUGIN_SYMBOL must have a space between words,
   // whereas the short-form used here must not.
   // (So if you did write "Compare Audio" for the PLUGIN_SYMBOL name, then
   // you would have to use "CompareAudio" here.)
   Command( wxT("SetClip"), XXO("Set Clip..."),
      CommandDispatch::OnAudacityCommand, AudioIONotBusyFlag() ),
   wxT("Optional/Extra/Part2/Scriptables1")
};
}