ExportFilePanel.h

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#pragma once
 
#include <memory>
 
#include <wx/event.h>
 
#include "Observer.h"
#include "ExportPlugin.h"
 
#include "wxPanelWrapper.h"
 
class ExportOptionsHandlerEvent;
class ShuttleGui;
class AudacityProject;
 
class Exporter;
class ExportOptionsHandler;
 
class wxWindow;
class wxChoice;
class wxTextCtrl;
class wxRadioButton;
 
wxDECLARE_EXPORTED_EVENT(AUDACITY_DLL_API,
   AUDACITY_EXPORT_FORMAT_CHANGE_EVENT, wxCommandEvent);
 
class ExportFilePanel final : public wxPanelWrapper
{
   constexpr static auto MaxExportChannels = 32u;
public:
 
   ExportFilePanel(AudacityProject& project,
                      bool monoStereoMode = false,
                      wxWindow* parent = nullptr,
                      wxWindowID winid = wxID_ANY);
   ~ExportFilePanel() override; 
 
   void PopulateOrExchange(ShuttleGui& S);
 
   void Init(const wxFileName& filename,
             int sampleRate,
             const wxString& format = wxEmptyString,
             int channels = 0,
             const ExportProcessor::Parameters& parameters = {},
             const MixerOptions::Downmix* mixerSpec = nullptr);
   void SetInitialFocus();
 
   void SetCustomMappingEnabled(bool enabled);
 
   wxString GetPath() const;
   wxString GetFullName();
 
   const ExportPlugin* GetPlugin() const;
   int GetFormat() const;
   int GetSampleRate() const;
 
   std::optional<ExportProcessor::Parameters> GetParameters() const;
   int GetChannels() const;
 
   MixerOptions::Downmix* GetMixerSpec() const;
 
private:
 
   void ValidateAndFixExt();
 
   void OnFullNameFocusKill(wxFocusEvent& event);
   void OnFormatChange(wxCommandEvent& event);
   void OnSampleRateChange(wxCommandEvent& event);
   
   void OnFolderBrowse(wxCommandEvent& event);
 
   void OnChannelsChange(wxCommandEvent& event);
   void OnChannelsConfigure(wxCommandEvent& event);
 
   void ChangeFormat(int index);
   
   void OnOptionsHandlerEvent(const ExportOptionsHandlerEvent& e);
   
   void UpdateSampleRateList();
   void UpdateMaxChannels(unsigned maxChannels);
 
   AudacityProject& mProject;
 
   bool mMonoStereoMode{false};
 
   wxChoice* mFormat{};
   wxChoice* mRates{};
   wxWindow* mAudioOptionsPanel{};
 
   wxTextCtrl* mFolder{};
   wxTextCtrl* mFullName{};
 
   wxRadioButton* mMono{};
   wxRadioButton* mStereo{};
   wxRadioButton* mCustomMapping{};
   wxButton* mCustomizeChannels{};
 
   int mSampleRate{};
   const ExportPlugin* mSelectedPlugin{};
   int mSelectedFormatIndex{};
   
   std::unique_ptr<ExportOptionsHandler> mOptionsHandler;
   std::unique_ptr<MixerOptions::Downmix> mMixerSpec;
 
   Observer::Subscription mOptionsChangeSubscription;
 
   DECLARE_EVENT_TABLE()
};