mirror of
https://github.com/cookiengineer/audacity
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68999934e0
ControlToolBar, after we make a system to register functions that calculate necessary minimum widths for status bar fields. Also let Scrubbing.cpp register its own strings. Also be sure to size the status field sufficiently for "Playing at Speed".
75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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ProjectStatus.h
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Paul Licameli
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**********************************************************************/
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#ifndef __AUDACITY_PROJECT_STATUS__
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#define __AUDACITY_PROJECT_STATUS__
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#endif
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#include <utility>
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#include <vector>
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#include <wx/event.h> // to declare custom event type
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#include "ClientData.h" // to inherit
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class AudacityProject;
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class wxString;
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class wxWindow;
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enum StatusBarField : int {
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stateStatusBarField = 1,
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mainStatusBarField = 2,
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rateStatusBarField = 3,
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nStatusBarFields = 3
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};
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// Type of event emitted by the project when its status message is set
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// GetInt() identifies the intended field of the status bar
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wxDECLARE_EXPORTED_EVENT(AUDACITY_DLL_API,
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EVT_PROJECT_STATUS_UPDATE, wxCommandEvent);
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class ProjectStatus final
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: public ClientData::Base
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{
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public:
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static ProjectStatus &Get( AudacityProject &project );
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static const ProjectStatus &Get( const AudacityProject &project );
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explicit ProjectStatus( AudacityProject &project );
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ProjectStatus( const ProjectStatus & ) = delete;
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ProjectStatus &operator= ( const ProjectStatus & ) = delete;
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~ProjectStatus() override;
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// Type of a function to report translated strings, and also report an extra
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// margin, to request that the corresponding field of the status bar should
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// be wide enough to contain any of those strings plus the margin.
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using StatusWidthResult = std::pair< std::vector<wxString>, unsigned >;
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using StatusWidthFunction = std::function<
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StatusWidthResult( const AudacityProject &, StatusBarField )
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>;
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using StatusWidthFunctions = std::vector< StatusWidthFunction >;
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// Typically a static instance of this struct is used.
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struct RegisteredStatusWidthFunction
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{
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explicit
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RegisteredStatusWidthFunction( const StatusWidthFunction &function );
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};
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static const StatusWidthFunctions &GetStatusWidthFunctions();
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const wxString &Get( StatusBarField field = mainStatusBarField ) const;
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void Set(const wxString &msg,
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StatusBarField field = mainStatusBarField);
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private:
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AudacityProject &mProject;
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wxString mLastStatusMessages[ nStatusBarFields ];
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};
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