anonymous_namespace{PitchAndSpeedDialog.cpp} Namespace Reference

Classes
struct	HitClip

Functions
std::optional< HitClip >	GetHitClip (AudacityProject &project, const TrackPanelMouseEvent &event)
bool	IsExactlySelected (AudacityProject &project, const ClipTimes &clip)
PitchAndSpeedDialog::PitchShift	ToSemitonesAndCents (int oldCents, int newCents)
void	ClampPitchShift (PitchAndSpeedDialog::PitchShift &shift)
PitchAndSpeedDialog::PitchShift	GetClipShift (const WaveClip &clip)

Variables
constexpr auto	semitoneCtrlId = wxID_HIGHEST + 1
constexpr auto	speedCtrlId = wxID_HIGHEST + 3
static const AttachedWindows::RegisteredFactory	key

Function Documentation

ClampPitchShift()

void anonymous_namespace{PitchAndSpeedDialog.cpp}::ClampPitchShift

(

PitchAndSpeedDialog::PitchShift &

shift

)

Definition at line 120 of file PitchAndSpeedDialog.cpp.

{
   static_assert(TimeAndPitchInterface::MaxCents % 100 == 0);
   static_assert(TimeAndPitchInterface::MinCents % 100 == 0);
   const auto cents = shift.semis * 100 + shift.cents;
   if (cents > TimeAndPitchInterface::MaxCents)
      shift = { TimeAndPitchInterface::MaxCents / 100, 0 };
   else if (cents < TimeAndPitchInterface::MinCents)
      shift = { TimeAndPitchInterface::MinCents / 100, 0 };
}

References PitchAndSpeedDialog::PitchShift::cents, TimeAndPitchInterface::MaxCents, TimeAndPitchInterface::MinCents, and PitchAndSpeedDialog::PitchShift::semis.

Referenced by PitchAndSpeedDialog::SetSemitoneShift().

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GetClipShift()

PitchAndSpeedDialog::PitchShift anonymous_namespace{PitchAndSpeedDialog.cpp}::GetClipShift

(

const WaveClip &

clip

)

Definition at line 131 of file PitchAndSpeedDialog.cpp.

{
   const auto totalShift = clip.GetCentShift();
   return { totalShift / 100, totalShift % 100 };
}

References WaveClip::GetCentShift().

Referenced by PitchAndSpeedDialog::Retarget().

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GetHitClip()

std::optional< HitClip > anonymous_namespace{PitchAndSpeedDialog.cpp}::GetHitClip	(	AudacityProject &	project,
		const TrackPanelMouseEvent &	event
	)

Definition at line 55 of file PitchAndSpeedDialog.cpp.

{
   const auto pos = event.event.GetPosition();
   const auto& viewInfo = ViewInfo::Get(project);
   const auto t = viewInfo.PositionToTime(pos.x, event.rect.GetX());
   auto& trackPanel = TrackPanel::Get(project);
   for (auto leader : TrackList::Get(project).Any<WaveTrack>())
   {
      const auto trackRect = trackPanel.FindTrackRect(leader);
      if (!trackRect.Contains(pos))
         continue;
      auto [begin, end] = leader->Intervals();
      while (begin != end)
      {
         auto clip = *begin++;
         if (clip->WithinPlayRegion(t))
            return HitClip { std::static_pointer_cast<WaveTrack>(
                                leader->SharedPointer()),
                             clip };
      }
   }
   return {};
}

References details::begin(), details::end(), ViewInfo::Get(), TrackList::Get(), TrackPanel::Get(), project, and TrackPanelMouseEvent::rect.

Referenced by PitchAndSpeedDialog::TryRetarget().

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IsExactlySelected()

bool anonymous_namespace{PitchAndSpeedDialog.cpp}::IsExactlySelected	(	AudacityProject &	project,
		const ClipTimes &	clip
	)

Definition at line 79 of file PitchAndSpeedDialog.cpp.

{
   auto& viewInfo = ViewInfo::Get(project);
   return clip.GetPlayStartTime() == viewInfo.selectedRegion.t0() &&
          clip.GetPlayEndTime() == viewInfo.selectedRegion.t1();
}

References ViewInfo::Get(), ClipTimes::GetPlayEndTime(), ClipTimes::GetPlayStartTime(), and project.

Referenced by PitchAndSpeedDialog::SetClipSpeed().

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ToSemitonesAndCents()

PitchAndSpeedDialog::PitchShift anonymous_namespace{PitchAndSpeedDialog.cpp}::ToSemitonesAndCents	(	int	oldCents,
		int	newCents
	)

Definition at line 86 of file PitchAndSpeedDialog.cpp.

{
   // Rules:
   // 1. cents must be in the range [-100, 100]
   // 2. on semitone updates, keep semitone and cent sign consistent
 
   PitchAndSpeedDialog::PitchShift shift { 0, newCents };
   while (shift.cents <= -100)
   {
      --shift.semis;
      shift.cents += 100;
   }
   while (shift.cents >= 100)
   {
      ++shift.semis;
      shift.cents -= 100;
   }
 
   const auto onlySemitonesChanged = [](int oldCents, int newCents) {
      while (oldCents < 0)
         oldCents += 100;
      while (newCents < 0)
         newCents += 100;
      return oldCents / 100 != newCents / 100;
   }(oldCents, newCents);
 
   if (onlySemitonesChanged && shift.cents > 0 && shift.semis < 0)
      return { shift.semis + 1, shift.cents - 100 };
   else if (onlySemitonesChanged && shift.cents < 0 && shift.semis > 0)
      return { shift.semis - 1, shift.cents + 100 };
   else
      return shift;
}

References PitchAndSpeedDialog::PitchShift::semis.

Referenced by PitchAndSpeedDialog::Retarget().

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Variable Documentation

key

const AttachedWindows::RegisteredFactory anonymous_namespace{PitchAndSpeedDialog.cpp}::key

static

Initial value:

{
   [](AudacityProject& project) -> wxWeakRef<wxWindow> {
      return safenew PitchAndSpeedDialog(project);
   }
}

Definition at line 137 of file PitchAndSpeedDialog.cpp.

Referenced by PitchAndSpeedDialog::Destroy(), and PitchAndSpeedDialog::Get().

semitoneCtrlId

constexpr auto anonymous_namespace{PitchAndSpeedDialog.cpp}::semitoneCtrlId = wxID_HIGHEST + 1

constexpr

Definition at line 45 of file PitchAndSpeedDialog.cpp.

Referenced by PitchAndSpeedDialog::PopulateOrExchange(), and PitchAndSpeedDialog::SetFocus().

speedCtrlId

constexpr auto anonymous_namespace{PitchAndSpeedDialog.cpp}::speedCtrlId = wxID_HIGHEST + 3

constexpr

Definition at line 46 of file PitchAndSpeedDialog.cpp.

Referenced by PitchAndSpeedDialog::PopulateOrExchange(), and PitchAndSpeedDialog::SetFocus().