ButtonHandle.cpp

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/**********************************************************************
 
Audacity: A Digital Audio Editor
 
ButtonHandle.cpp
 
Paul Licameli
 
**********************************************************************/
 
 
#include "ButtonHandle.h"
 
#include "../../HitTestResult.h"
#include "../../RefreshCode.h"
#include "Track.h"
#include "../../TrackPanelMouseEvent.h"
 
#include <wx/event.h>
 
ButtonHandle::ButtonHandle
( const std::shared_ptr<Track> &pTrack, const wxRect &rect )
   : mpTrack{ pTrack }
   , mRect{ rect }
{
}
 
ButtonHandle::~ButtonHandle()
{
}
 
std::shared_ptr<const Channel> ButtonHandle::FindChannel() const
{
   return std::dynamic_pointer_cast<const Channel>(mpTrack.lock());
}
 
bool ButtonHandle::IsDragging() const
{
   return mIsDragging;
}
 
void ButtonHandle::Enter(bool, AudacityProject *)
{
   mChangeHighlight = RefreshCode::RefreshCell;
}
 
UIHandle::Result ButtonHandle::Click
(const TrackPanelMouseEvent &evt, AudacityProject *pProject)
{
   using namespace RefreshCode;
   auto pTrack = TrackList::Get( *pProject ).Lock(mpTrack);
   if ( !pTrack )
      return Cancelled;
 
   const wxMouseEvent &event = evt.event;
   if (!event.Button(wxMOUSE_BTN_LEFT))
      return Cancelled;
 
   // Come here for left click or double click
   if (mRect.Contains(event.m_x, event.m_y)) {
      mWasIn = true;
      mIsDragging = true;
      // Toggle visible button state
      return RefreshCell;
   }
   else
      return Cancelled;
}
 
UIHandle::Result ButtonHandle::Drag
(const TrackPanelMouseEvent &evt, AudacityProject *pProject)
{
   const wxMouseEvent &event = evt.event;
   using namespace RefreshCode;
   auto pTrack = TrackList::Get( *pProject ).Lock(mpTrack);
   if (!pTrack)
      return Cancelled;
 
   auto isIn = mRect.Contains(event.m_x, event.m_y);
   auto result = (isIn == mWasIn) ? RefreshNone : RefreshCell;
   mWasIn = isIn;
   return result;
}
 
HitTestPreview ButtonHandle::Preview
(const TrackPanelMouseState &st, AudacityProject *project)
{
   // No special cursor
   TranslatableString message;
   if (project)
      message = Tip(st.state, *project);
   return { message, {}, message };
}
 
UIHandle::Result ButtonHandle::Release
(const TrackPanelMouseEvent &evt, AudacityProject *pProject,
 wxWindow *pParent)
{
   using namespace RefreshCode;
   auto pTrack = TrackList::Get( *pProject ).Lock(mpTrack);
   if (!pTrack)
      return Cancelled;
 
   Result result = RefreshNone;
   const wxMouseEvent &event = evt.event;
   if (pTrack && mRect.Contains(event.m_x, event.m_y))
      result |= RefreshCell | CommitChanges(event, pProject, pParent);
   return result;
}
 
UIHandle::Result ButtonHandle::Cancel(AudacityProject *WXUNUSED(pProject))
{
   using namespace RefreshCode;
   return RefreshCell; // perhaps unnecessarily if pointer is out of the box
}