127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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Audacity(R) is copyright (c) 1999-2010 Audacity Team.
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License: GPL v2. See License.txt.
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AutoRecovery.h
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*******************************************************************/
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#ifndef __AUDACITY_AUTORECOVERY__
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#define __AUDACITY_AUTORECOVERY__
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#include "Project.h"
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#include "xml/XMLTagHandler.h"
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#include "xml/XMLWriter.h"
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#include <wx/debug.h>
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#include <wx/dynarray.h>
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#include <wx/ffile.h>
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#include <wx/hashmap.h>
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#include <wx/mstream.h>
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#ifndef __AUDACITY_OLD_STD__
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#include <unordered_map>
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#endif
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//
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// Show auto recovery dialog if there are projects to recover. Should be
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// called once at Audacity startup.
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//
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// This function possibly opens NEW project windows while it recovers all
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// projects. If so, it will re-use *pproj, if != NULL and set it to NULL.
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//
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// Returns: True, if the start of Audacity should continue as normal
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// False if Audacity should be quit immediately
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//
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// The didRecoverAnything param is strictly for a return value.
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// Any value passed in is ignored.
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//
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bool ShowAutoRecoveryDialogIfNeeded(AudacityProject** pproj,
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bool *didRecoverAnything);
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//
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// XML Handler for a <recordingrecovery> tag
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//
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class RecordingRecoveryHandler final : public XMLTagHandler
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{
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public:
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RecordingRecoveryHandler(AudacityProject* proj);
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bool HandleXMLTag(const wxChar *tag, const wxChar **attrs) override;
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void HandleXMLEndTag(const wxChar *tag) override;
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XMLTagHandler *HandleXMLChild(const wxChar *tag) override;
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// This class only knows reading tags
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private:
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int FindTrack() const;
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AudacityProject* mProject;
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int mChannel;
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int mNumChannels;
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int mAutoSaveIdent;
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};
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///
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/// AutoSaveFile
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///
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// Should be plain ASCII
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#define AutoSaveIdent "<?xml autosave>"
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using NameMap = std::unordered_map<wxString, short>;
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using IdMap = std::unordered_map<short, wxString>;
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WX_DECLARE_OBJARRAY_WITH_DECL(IdMap, IdMapArray, class AUDACITY_DLL_API);
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// This class's overrides do NOT throw AudacityException.
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class AUDACITY_DLL_API AutoSaveFile final : public XMLWriter
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{
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public:
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AutoSaveFile(size_t allocSize = 1024 * 1024);
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virtual ~AutoSaveFile();
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void StartTag(const wxString & name) override;
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void EndTag(const wxString & name) override;
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void WriteAttr(const wxString & name, const wxString &value) override;
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void WriteAttr(const wxString & name, const wxChar *value) override;
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void WriteAttr(const wxString & name, int value) override;
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void WriteAttr(const wxString & name, bool value) override;
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void WriteAttr(const wxString & name, long value) override;
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void WriteAttr(const wxString & name, long long value) override;
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void WriteAttr(const wxString & name, size_t value) override;
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void WriteAttr(const wxString & name, float value, int digits = -1) override;
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void WriteAttr(const wxString & name, double value, int digits = -1) override;
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void WriteData(const wxString & value) override;
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void Write(const wxString & data) override;
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// Non-override functions
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void WriteSubTree(const AutoSaveFile & value);
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bool Write(wxFFile & file) const;
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bool Append(wxFFile & file) const;
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bool IsEmpty() const;
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bool Decode(const wxString & fileName);
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private:
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void WriteName(const wxString & name);
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void CheckSpace(wxMemoryOutputStream & buf);
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private:
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wxMemoryOutputStream mBuffer;
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wxMemoryOutputStream mDict;
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NameMap mNames;
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size_t mAllocSize;
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};
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#endif
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