WaveTrackVZoomHandle Namespace Reference

Typedefs
using	Result = unsigned
using	DoZoomFunction = void(*)(AudacityProject *pProject, WaveTrack *pTrack, WaveTrackViewConstants::ZoomActions ZoomKind, const wxRect &rect, int zoomStart, int zoomEnd, bool fixedMousePoint)

Functions
AUDACITY_DLL_API HitTestPreview	HitPreview (const wxMouseState &state)
AUDACITY_DLL_API bool	IsDragZooming (int zoomStart, int zoomEnd)
AUDACITY_DLL_API Result	DoDrag (const TrackPanelMouseEvent &event, AudacityProject *pProject, int zoomStart, int &zoomEnd)
AUDACITY_DLL_API Result	DoRelease (const TrackPanelMouseEvent &event, AudacityProject *pProject, wxWindow *pParent, WaveTrack *pTrack, const wxRect &mRect, DoZoomFunction doZoom, PopupMenuTable &table, int zoomStart, int zoomEnd)
AUDACITY_DLL_API void	DoDraw (TrackPanelDrawingContext &context, const wxRect &rect, unsigned iPass, int zoomStart, int zoomEnd)
AUDACITY_DLL_API wxRect	DoDrawingArea (const wxRect &rect, const wxRect &panelRect, unsigned iPass)

Typedef Documentation

DoZoomFunction

using WaveTrackVZoomHandle::DoZoomFunction = typedef void (*)( AudacityProject *pProject, WaveTrack *pTrack, WaveTrackViewConstants::ZoomActions ZoomKind, const wxRect &rect, int zoomStart, int zoomEnd, bool fixedMousePoint)

Definition at line 32 of file WaveTrackVZoomHandle.h.

Result

using WaveTrackVZoomHandle::Result = typedef unsigned

Definition at line 24 of file WaveTrackVZoomHandle.h.

Function Documentation

DoDrag()

UIHandle::Result WaveTrackVZoomHandle::DoDrag	(	const TrackPanelMouseEvent &	event,
		AudacityProject *	pProject,
		int	zoomStart,
		int &	zoomEnd
	)

Definition at line 82 of file WaveTrackVZoomHandle.cpp.

{
   using namespace RefreshCode;
 
   const wxMouseEvent &event = evt.event;
   if ( event.RightIsDown() )
      return RefreshNone;
   zoomEnd = event.m_y;
   if (IsDragZooming( zoomStart, zoomEnd ))
      return RefreshAll;
   return RefreshNone;
}

References TrackPanelMouseEvent::event, anonymous_namespace{NoteTrackVZoomHandle.cpp}::IsDragZooming(), RefreshCode::RefreshAll, and RefreshCode::RefreshNone.

Referenced by SpectrumVZoomHandle::Drag(), and WaveformVZoomHandle::Drag().

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DoDraw()

void WaveTrackVZoomHandle::DoDraw	(	TrackPanelDrawingContext &	context,
		const wxRect &	rect,
		unsigned	iPass,
		int	zoomStart,
		int	zoomEnd
	)

Definition at line 150 of file WaveTrackVZoomHandle.cpp.

{
   if ( iPass == TrackArtist::PassZooming ) {
      if ( IsDragZooming( zoomStart, zoomEnd ) )
         TrackVRulerControls::DrawZooming
            ( context, rect, zoomStart, zoomEnd );
   }
}

References TrackVRulerControls::DrawZooming(), anonymous_namespace{NoteTrackVZoomHandle.cpp}::IsDragZooming(), and TrackArtist::PassZooming.

Referenced by SpectrumVZoomHandle::Draw(), and WaveformVZoomHandle::Draw().

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DoDrawingArea()

wxRect WaveTrackVZoomHandle::DoDrawingArea	(	const wxRect &	rect,
		const wxRect &	panelRect,
		unsigned	iPass
	)

Definition at line 161 of file WaveTrackVZoomHandle.cpp.

{
   if ( iPass == TrackArtist::PassZooming )
      return TrackVRulerControls::ZoomingArea( rect, panelRect );
   else
      return rect;
}

References TrackArtist::PassZooming, and TrackVRulerControls::ZoomingArea().

Referenced by SpectrumVZoomHandle::DrawingArea(), and WaveformVZoomHandle::DrawingArea().

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DoRelease()

UIHandle::Result WaveTrackVZoomHandle::DoRelease	(	const TrackPanelMouseEvent &	event,
		AudacityProject *	pProject,
		wxWindow *	pParent,
		WaveTrack *	pTrack,
		const wxRect &	mRect,
		DoZoomFunction	doZoom,
		PopupMenuTable &	table,
		int	zoomStart,
		int	zoomEnd
	)

Definition at line 97 of file WaveTrackVZoomHandle.cpp.

{
   using namespace RefreshCode;
   if (!pTrack)
      return RefreshNone;
 
   const wxMouseEvent &event = evt.event;
   const bool shiftDown = event.ShiftDown();
   const bool rightUp = event.RightUp();
 
 
   // Popup menu...
   using namespace WaveTrackViewConstants;
   if (
       rightUp &&
       !(event.ShiftDown() || event.CmdDown()))
   {
      WaveTrackVRulerMenuTable::InitMenuData data {
         *pProject,
         pTrack, rect, RefreshCode::RefreshNone, event.m_y, doZoom };
 
      auto pMenu = PopupMenuTable::BuildMenu( &table, &data );
      pMenu->Popup( *pParent, { event.m_x, event.m_y } );
 
      return data.result;
   }
   else{
      bool bVZoom;
      gPrefs->Read(wxT("/GUI/VerticalZooming"), &bVZoom, false);
      // Ignore Capture Lost event 
      bVZoom &= event.GetId() != kCaptureLostEventId;
      // shiftDown | rightUp | ZoomKind
      //    T      |    T    | 1to1
      //    T      |    F    | Out
      //    F      |    -    | In
      if( bVZoom ) {
         if( shiftDown )
            zoomStart = zoomEnd;
         doZoom(pProject, pTrack,
            shiftDown
               ? (rightUp ? kZoom1to1 : kZoomOut)
               : kZoomIn,
            rect, zoomStart, zoomEnd, !shiftDown);
      }
   }
 
   return UpdateVRuler | RefreshAll;
}

References PopupMenuTable::BuildMenu(), bVZoom, TrackPanelMouseEvent::event, gPrefs, kCaptureLostEventId, WaveTrackViewConstants::kZoom1to1, WaveTrackViewConstants::kZoomIn, WaveTrackViewConstants::kZoomOut, RefreshCode::RefreshAll, RefreshCode::RefreshNone, RefreshCode::UpdateVRuler, and wxT().

Referenced by SpectrumVZoomHandle::Release(), and WaveformVZoomHandle::Release().

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HitPreview()

HitTestPreview WaveTrackVZoomHandle::HitPreview

(

const wxMouseState &

state

)

Definition at line 61 of file WaveTrackVZoomHandle.cpp.

{
   static auto zoomInCursor =
      ::MakeCursor(wxCURSOR_MAGNIFIER, ZoomInCursorXpm, 19, 15);
   static auto zoomOutCursor =
      ::MakeCursor(wxCURSOR_MAGNIFIER, ZoomOutCursorXpm, 19, 15);
   static  wxCursor arrowCursor{ wxCURSOR_ARROW };
   bool bVZoom;
   gPrefs->Read(wxT("/GUI/VerticalZooming"), &bVZoom, false);
   bVZoom &= !state.RightIsDown();
   const auto message = bVZoom ? 
      XO("Click to vertically zoom in. Shift-click to zoom out. Drag to specify a zoom region.") :
      XO("Right-click for menu.");
 
   return {
      message,
      bVZoom ? (state.ShiftDown() ? &*zoomOutCursor : &*zoomInCursor) : &arrowCursor
      // , message
   };
}

References bVZoom, gPrefs, MakeCursor(), wxT(), and XO().

Referenced by SpectrumVZoomHandle::Preview(), and WaveformVZoomHandle::Preview().

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IsDragZooming()

bool WaveTrackVZoomHandle::IsDragZooming	(	int	zoomStart,
		int	zoomEnd
	)

Definition at line 24 of file WaveTrackVZoomHandle.cpp.

{
   const int DragThreshold = 3;// Anything over 3 pixels is a drag, else a click.
   bool bVZoom;
   gPrefs->Read(wxT("/GUI/VerticalZooming"), &bVZoom, false);
   return bVZoom && (abs(zoomEnd - zoomStart) > DragThreshold);
}

References bVZoom, DragThreshold, gPrefs, and wxT().

Referenced by SpectrumVZoomHandle::DoZoom(), and WaveformVZoomHandle::DoZoom().

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