SnapFunctionsRegistry Struct Reference

#include <SnapUtils.h>

Static Public Member Functions
static Registry::GroupItem< SnapRegistryTraits > &	Registry ()
static void	Visit (const SnapRegistryVisitor &visitor)
static const SnapRegistryItem *	Find (const Identifier &id)
static SnapResult	Snap (const Identifier &id, const AudacityProject &project, double time, bool nearest)
static SnapResult	SingleStep (const Identifier &id, const AudacityProject &project, double time, bool upwards)

Detailed Description

Definition at line 101 of file SnapUtils.h.

Member Function Documentation

Find()

const SnapRegistryItem * SnapFunctionsRegistry::Find ( const Identifier &  id )

static

Definition at line 121 of file SnapUtils.cpp.

{
   using Cache = std::unordered_map<Identifier, const SnapRegistryItem*>;
   static Cache cache;
 
   auto it = cache.find(id);
   if (it != cache.end())
      return it->second;
 
   auto visitor = [&](const SnapRegistryItem &item, auto&) {
      auto it = cache.find(item.name);
 
      if (it == cache.end())
      {
         cache.insert({ item.name, &item });
      }
   };
 
   Registry::Visit(visitor, &Registry());
 
   it = cache.find(id);
 
   return it != cache.end() ? it->second : nullptr;
}

References Registry::detail::BaseItem::name, Registry(), and Registry::Visit().

Referenced by anonymous_namespace{SnappingToolBar.cpp}::GetSnapToLabel(), SingleStep(), and Snap().

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Registry()

Registry::GroupItem< SnapRegistryTraits > & SnapFunctionsRegistry::Registry ( )

static

Definition at line 104 of file SnapUtils.cpp.

{
   static Registry::GroupItem<SnapRegistryTraits> registry { PathStart };
   return registry;
}

References anonymous_namespace{SnapUtils.cpp}::PathStart.

Referenced by Find(), and Visit().

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SingleStep()

SnapResult SnapFunctionsRegistry::SingleStep ( const Identifier &  id, const AudacityProject &  project, double  time, bool  upwards  )

static

Definition at line 158 of file SnapUtils.cpp.

{
   auto item = Find(id);
 
   if (item == nullptr)
      return SnapResult { time, false };
 
   return item->SingleStep(project, time, upwards);
}

References Find(), and project.

Referenced by BarStepCase(), ProjectSnap::SingleStep(), and TimeStepCase().

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Snap()

SnapResult SnapFunctionsRegistry::Snap ( const Identifier &  id, const AudacityProject &  project, double  time, bool  nearest  )

static

Definition at line 146 of file SnapUtils.cpp.

{
   auto item = Find(id);
 
   if (item == nullptr)
      return SnapResult { time, false };
 
   return item->Snap(project, time, nearest);
}

References Find(), and project.

Referenced by BeatsCase(), ProjectSnap::SnapTime(), TEST_CASE(), and TimeCase().

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Visit()

void SnapFunctionsRegistry::Visit ( const SnapRegistryVisitor &  visitor )

static

Definition at line 110 of file SnapUtils.cpp.

{
   static Registry::OrderingPreferenceInitializer init {
      PathStart,
      { { L"", L"beats,triplets,time,video,cd" } },
   };
 
   Registry::GroupItem<SnapRegistryTraits> top { PathStart };
   Registry::VisitWithFunctions(visitor, &top, &Registry());
}

References anonymous_namespace{SnapUtils.cpp}::PathStart, Registry(), and Registry::VisitWithFunctions().

Referenced by anonymous_namespace{SnappingToolBar.cpp}::SnapModePopup::Init(), and anonymous_namespace{SnappingToolBar.cpp}::SnapModePopup::OnPopup().

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The documentation for this struct was generated from the following files:

• SnapUtils.h
• SnapUtils.cpp