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Use wxWeakRef to avoid dangling pointer

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This commit is contained in:
Paul Licameli
2018-01-31 09:43:53 -05:00
parent 94b97f5c95
commit 12983e1685
3 changed files with 11 additions and 20 deletions
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4
src/AudioIO.h
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@@ -21,6 +21,7 @@
#include <utility>
#include <vector>
#include <wx/atomic.h>
#include <wx/weakref.h>
#ifdef USE_MIDI
@@ -410,7 +411,6 @@ class AUDACITY_DLL_API AudioIO final {
bool IsAvailable(AudacityProject *projecT);
void SetCaptureMeter(AudacityProject *project, MeterPanel *meter);
void SetPlaybackMeter(AudacityProject *project, MeterPanel *meter);
MeterPanel * GetCaptureMeter();
private:
/** \brief Set the current VU meters - this should be done once after
@@ -694,7 +694,7 @@ private:
PaError mLastPaError;
AudacityProject *mOwningProject;
MeterPanel *mInputMeter;
wxWeakRef<MeterPanel> mInputMeter{};
MeterPanel *mOutputMeter;
bool mUpdateMeters;
volatile bool mUpdatingMeters;