EffectUI Namespace Reference

Functions
AUDACITY_DLL_API DialogFactoryResults	DialogFactory (wxWindow &parent, EffectBase &host, EffectUIServices &client, EffectSettingsAccess &access)
AUDACITY_DLL_API bool	DoEffect (const PluginID &ID, const CommandContext &context, unsigned flags)
	'Repeat Last Effect'. More...

Function Documentation

DialogFactory()

DialogFactoryResults EffectUI::DialogFactory	(	wxWindow &	parent,
		EffectBase &	host,
		EffectUIServices &	client,
		EffectSettingsAccess &	access
	)

Definition at line 1105 of file EffectUI.cpp.

{
   // Make sure there is an associated project, whose lifetime will
   // govern the lifetime of the dialog, even when the dialog is
   // non-modal, as for realtime effects
   auto project = FindProjectFromWindow(&parent);
   if ( !project )
      return {};
   std::shared_ptr<EffectInstance> pInstance;
   Destroy_ptr<EffectUIHost> dlg{ safenew EffectUIHost{ &parent,
      *project, host, client, pInstance, access } };
   if (!pInstance) {
      dlg->SetClosed();
      return {};
   }
   if (dlg->Initialize()) {
      auto pEditor = dlg->GetEditor();
      // release() is safe because parent will own it
      return { dlg.release(), pInstance, pEditor };
   }
   return {};
}

References FindProjectFromWindow(), and safenew.

Referenced by DoEffect(), and MacroCommands::PromptForParamsFor().

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DoEffect()

bool EffectUI::DoEffect	(	const PluginID &	ID,
		const CommandContext &	context,
		unsigned	flags
	)

'Repeat Last Effect'.

Run an effect given the plugin ID

DoEffect() takes a PluginID and executes the associated effect.

At the moment flags are used only to indicate whether to prompt for

Definition at line 1144 of file EffectUI.cpp.

{
   AudacityProject &project = context.project;
   auto &tracks = TrackList::Get( project );
   auto &trackPanel = TrackPanel::Get( project );
   auto &trackFactory = WaveTrackFactory::Get( project );
   auto rate = ProjectRate::Get(project).GetRate();
   auto &selectedRegion = ViewInfo::Get( project ).selectedRegion;
   auto &commandManager = CommandManager::Get( project );
   auto &window = ProjectWindow::Get( project );
 
   const PluginDescriptor *plug = PluginManager::Get().GetPlugin(ID);
 
   if (!plug || !PluginManager::IsPluginAvailable(*plug))
   {
      BasicUI::ShowMessageBox(
         XO("This plugin could not be loaded.\nIt may have been deleted."),
         BasicUI::MessageBoxOptions()
            .Caption(XO("Plugin Error")));
 
      return false;
   }
 
   EffectType type = plug->GetEffectType();
 
   // Make sure there's no activity since the effect is about to be applied
   // to the project's tracks.  Mainly for Apply during RTP, but also used
   // for batch commands
   if (flags & EffectManager::kConfigured)
   {
      ProjectAudioManager::Get( project ).Stop();
      //Don't Select All if repeating Generator Effect
      if (!(flags & EffectManager::kConfigured)) {
         SelectUtilities::SelectAllIfNone(project);
      }
   }
 
   auto nTracksOriginally = tracks.Size();
   wxWindow *focus = wxWindow::FindFocus();
   wxWindow *parent = nullptr;
   if (focus != nullptr) {
      parent = focus->GetParent();
   }
 
   bool success = false;
   auto cleanup = finally( [&] {
 
      if (!success) {
         // For now, we're limiting realtime preview to a single effect, so
         // make sure the menus reflect that fact that one may have just been
         // opened.
         MenuManager::Get(project).UpdateMenus( false );
      }
 
   } );
 
   int count = 0;
   bool clean = true;
   for (auto t : tracks.Selected< const WaveTrack >()) {
      if (t->GetEndTime() != 0.0)
         clean = false;
      count++;
   }
 
   EffectManager & em = EffectManager::Get();
 
   em.SetSkipStateFlag( false );
   success = false;
   if (auto effect = dynamic_cast<Effect*>(em.GetEffect(ID))) {
      if (const auto pSettings = em.GetDefaultSettings(ID)) {
         const auto pAccess =
            std::make_shared<SimpleEffectSettingsAccess>(*pSettings);
         const auto finder =
         [effect, &window, pAccess, flags] (EffectSettings &settings)
            -> std::optional<std::shared_ptr<EffectInstanceEx>>
         {
            // Prompting will be bypassed when applying an effect that has
            // already been configured, e.g. repeating the last effect on a
            // different selection.  Prompting may call EffectPreview
            std::shared_ptr<EffectInstance> pInstance;
            std::shared_ptr<EffectInstanceEx> pInstanceEx;
            if ((flags & EffectManager::kConfigured) == 0 && pAccess) {
               const auto pServices = dynamic_cast<EffectUIServices *>(effect);
               if (!pServices ||
                   !pServices->ShowHostInterface(*effect,
                  window, DialogFactory, pInstance, *pAccess, true)
               )
                  return {};
               else if (!(pInstanceEx =
                  std::dynamic_pointer_cast<EffectInstanceEx>(pInstance)
               ))
                  return {};
               else
                  // Retrieve again after the dialog modified settings
                  settings = pAccess->Get();
            }
            return { pInstanceEx };
         };
         pAccess->ModifySettings([&](EffectSettings &settings){
            success = effect->DoEffect(settings, finder,
               rate,
               &tracks,
               &trackFactory,
               selectedRegion,
               flags,
               pAccess);
            return nullptr;
         });
      }
   }
 
   if (!success)
      return false;
 
   if (em.GetSkipStateFlag())
      flags = flags | EffectManager::kSkipState;
 
   if (!(flags & EffectManager::kSkipState))
   {
      auto shortDesc = em.GetCommandName(ID);
      auto longDesc = em.GetCommandDescription(ID);
      ProjectHistory::Get( project ).PushState(longDesc, shortDesc);
   }
 
   if (!(flags & EffectManager::kDontRepeatLast))
   {
      // Remember a successful generator, effect, analyzer, or tool Process
         auto shortDesc = em.GetCommandName(ID);
         /* i18n-hint: %s will be the name of the effect which will be
          * repeated if this menu item is chosen */
         auto lastEffectDesc = XO("Repeat %s").Format(shortDesc);
         auto& menuManager = MenuManager::Get(project);
         switch ( type ) {
         case EffectTypeGenerate:
            commandManager.Modify(wxT("RepeatLastGenerator"), lastEffectDesc);
            menuManager.mLastGenerator = ID;
            menuManager.mRepeatGeneratorFlags = EffectManager::kConfigured;
            break;
         case EffectTypeProcess:
            commandManager.Modify(wxT("RepeatLastEffect"), lastEffectDesc);
            menuManager.mLastEffect = ID;
            menuManager.mRepeatEffectFlags = EffectManager::kConfigured;
            break;
         case EffectTypeAnalyze:
            commandManager.Modify(wxT("RepeatLastAnalyzer"), lastEffectDesc);
            menuManager.mLastAnalyzer = ID;
            menuManager.mLastAnalyzerRegistration = MenuCreator::repeattypeplugin;
            menuManager.mRepeatAnalyzerFlags = EffectManager::kConfigured;
            break;
         case EffectTypeTool:
            commandManager.Modify(wxT("RepeatLastTool"), lastEffectDesc);
            menuManager.mLastTool = ID;
            menuManager.mLastToolRegistration = MenuCreator::repeattypeplugin;
            menuManager.mRepeatToolFlags = EffectManager::kConfigured;
            if (shortDesc == NYQUIST_PROMPT_NAME) {
               menuManager.mRepeatToolFlags = EffectManager::kRepeatNyquistPrompt;  //Nyquist Prompt is not configured
            }
            break;
      }
   }
 
   //STM:
   //The following automatically re-zooms after sound was generated.
   // IMO, it was disorienting, removing to try out without re-fitting
   //mchinen:12/14/08 reapplying for generate effects
   if (type == EffectTypeGenerate)
   {
      if (count == 0 || (clean && selectedRegion.t0() == 0.0))
         window.DoZoomFit();
         //  trackPanel->Refresh(false);
   }
 
   // PRL:  RedrawProject explicitly because sometimes history push is skipped
   window.RedrawProject();
 
   if (focus != nullptr && focus->GetParent()==parent) {
      focus->SetFocus();
   }
 
   // A fix for Bug 63
   // New tracks added?  Scroll them into view so that user sees them.
   // Don't care what track type.  An analyser might just have added a
   // Label track and we want to see it.
   if (tracks.Size() > nTracksOriginally) {
      // 0.0 is min scroll position, 1.0 is max scroll position.
      trackPanel.VerticalScroll( 1.0 );
   }
   else {
      auto pTrack = *tracks.Selected().begin();
      if (!pTrack)
         pTrack = *tracks.Any().begin();
      if (pTrack) {
         TrackFocus::Get(project).Set(pTrack);
         pTrack->EnsureVisible();
      }
   }
 
   return true;
}

References DialogFactory(), EffectTypeAnalyze, EffectTypeGenerate, EffectTypeProcess, EffectTypeTool, Track::EnsureVisible(), BasicUI::FindFocus(), PluginManager::Get(), EffectManager::Get(), TrackFocus::Get(), ProjectHistory::Get(), ProjectRate::Get(), ViewInfo::Get(), TrackList::Get(), WaveTrackFactory::Get(), CommandManager::Get(), MenuManager::Get(), ProjectAudioManager::Get(), ProjectWindow::Get(), TrackPanel::Get(), EffectManager::GetCommandDescription(), EffectManager::GetCommandName(), EffectManager::GetDefaultSettings(), EffectManager::GetEffect(), PluginDescriptor::GetEffectType(), PluginManager::GetPlugin(), ProjectRate::GetRate(), EffectManager::GetSkipStateFlag(), PluginManager::IsPluginAvailable(), EffectManager::kConfigured, EffectManager::kDontRepeatLast, EffectManager::kRepeatNyquistPrompt, EffectManager::kSkipState, NYQUIST_PROMPT_NAME, CommandContext::project, ProjectHistory::PushState(), MenuCreator::repeattypeplugin, SelectUtilities::SelectAllIfNone(), ViewInfo::selectedRegion, EffectManager::SetSkipStateFlag(), settings(), BasicUI::ShowMessageBox(), ProjectAudioManager::Stop(), MenuManager::UpdateMenus(), wxT(), and XO().

Referenced by MacroCommands::ApplyEffectCommand(), CommandDispatch::HandleTextualCommand(), EffectUIHost::OnApply(), anonymous_namespace{PluginMenus.cpp}::OnEffect(), NyqBench::OnGo(), anonymous_namespace{PluginMenus.cpp}::OnRepeatLastAnalyzer(), anonymous_namespace{PluginMenus.cpp}::OnRepeatLastEffect(), anonymous_namespace{PluginMenus.cpp}::OnRepeatLastGenerator(), anonymous_namespace{BatchProcessDialog.cpp}::OnRepeatLastTool(), and anonymous_namespace{TrackMenus.cpp}::OnStereoToMono().

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