Add a field to the status bar to show the state of Audacity, eg play/record/play pause. This is useful so that screen readers can easily read audacitys state.

src/Project.cpp

@@ -781,9 +781,7 @@ AudacityProject::AudacityProject(wxWindow * parent, wxWindowID id,
      mMenuClose(false)
      , mbInitializingScrollbar(false)
 {
-   int widths[] = {-2, -1};
+   mStatusBar = CreateStatusBar(3);
-   mStatusBar = CreateStatusBar(2);
-   mStatusBar->SetStatusWidths(2, widths);
 
    wxGetApp().SetMissingAliasedFileWarningShouldShow(true);
 
@@ -1016,9 +1014,11 @@ AudacityProject::AudacityProject(wxWindow * parent, wxWindowID id,
 
    mTrackFactory = new TrackFactory(mDirManager);
 
+   int widths[] = {GetControlToolBar()->WidthForStatusBar(), -2, -1};
+   mStatusBar->SetStatusWidths(3, widths);
    wxString msg = wxString::Format(_("Welcome to Audacity version %s"),
                                    AUDACITY_VERSION_STRING);
-   mStatusBar->SetStatusText(msg);
+   mStatusBar->SetStatusText(msg, 1);
    mLastStatusUpdateTime = ::wxGetUTCTime();
 
    mTimer = new wxTimer(this, AudacityProjectTimerID);
@@ -3503,7 +3503,7 @@ bool AudacityProject::Save(bool overwrite /* = true */ ,
       wxRemoveFile(safetyFileName);
 
    mStatusBar->SetStatusText(wxString::Format(_("Saved %s"),
-                                              mFileName.c_str()));
+                                              mFileName.c_str()), 1);
 
    return true;
 }
@@ -4321,7 +4321,7 @@ void AudacityProject::OnTimer(wxTimerEvent& WXUNUSED(event))
          else
             msg.Printf(_("Out of disk space"));
 
-         mStatusBar->SetStatusText(msg);
+         mStatusBar->SetStatusText(msg, 1);
       }
    }
    else if(ODManager::IsInstanceCreated())
@@ -4342,7 +4342,7 @@ void AudacityProject::OnTimer(wxTimerEvent& WXUNUSED(event))
 
 
             msg.Printf(_("On-demand import and waveform calculation complete."));
-            mStatusBar->SetStatusText(msg);
+            mStatusBar->SetStatusText(msg, 1);
 
          }
          else if(numTasks>1)
@@ -4353,7 +4353,7 @@ void AudacityProject::OnTimer(wxTimerEvent& WXUNUSED(event))
              ratioComplete*100.0);
 
 
-         mStatusBar->SetStatusText(msg);
+         mStatusBar->SetStatusText(msg, 1);
       }
    }
 }
@@ -4542,7 +4542,7 @@ void AudacityProject::EditClipboardByLabel( WaveTrack::EditDestFunction action )
 // TrackPanel callback method
 void AudacityProject::TP_DisplayStatusMessage(wxString msg)
 {
-   mStatusBar->SetStatusText(msg);
+   mStatusBar->SetStatusText(msg, 1);
    mLastStatusUpdateTime = ::wxGetUTCTime();
 }
 
@@ -4789,9 +4789,9 @@ void AudacityProject::OnAudioIORate(int rate)
    display = wxString::Format(_("Actual Rate: %d"), rate);
    int x, y;
    mStatusBar->GetTextExtent(display, &x, &y);
-   int widths[] = {-1, x+50};
+   int widths[] = {GetControlToolBar()->WidthForStatusBar(), -1, x+50};
-   mStatusBar->SetStatusWidths(2, widths);
+   mStatusBar->SetStatusWidths(3, widths);
-   mStatusBar->SetStatusText(display, 1);
+   mStatusBar->SetStatusText(display, 2);
 }
 
 void AudacityProject::OnAudioIOStartRecording()

src/Project.h

@@ -397,6 +397,8 @@ class AUDACITY_DLL_API AudacityProject:  public wxFrame,
    LyricsWindow* GetLyricsWindow() { return mLyricsWindow; }
    MixerBoard* GetMixerBoard() { return mMixerBoard; }
 
+   wxStatusBar* GetStatusBar() { return mStatusBar; }
+
    // SelectionBarListener callback methods
 
    virtual double AS_GetRate();

src/Screenshot.cpp

@@ -563,7 +563,7 @@ void ScreenFrame::DoCapture(wxString captureMode)
 
    mCommand->SetParameter(wxT("CaptureMode"), captureMode);
    if (!mCommand->Apply(mContext))
-      mStatus->SetStatusText(wxT("Capture failed!"));
+      mStatus->SetStatusText(wxT("Capture failed!"), 1);
    Show();
 }
 

src/commands/CommandTargets.h

@@ -117,7 +117,7 @@ public:
    {}
    virtual void Update(wxString message)
    {
-      mStatus.SetStatusText(message);
+      mStatus.SetStatusText(message, 1);
    }
 };
 

src/toolbars/ControlToolBar.cpp

@@ -99,6 +99,12 @@ ControlToolBar::ControlToolBar()
 
    mSizer = NULL;
    mCutPreviewTracks = NULL;
+
+   // strings for status bar
+   mStatePlay = _("Play");
+   mStateStop = _("Stop");
+   mStateRecord = _("Record");
+   mStatePause = _("Pause");
 }
 
 ControlToolBar::~ControlToolBar()
@@ -433,6 +439,7 @@ void ControlToolBar::SetPlay(bool down, bool looped, bool cutPreview)
       mPlay->SetAlternateIdx(0);
    }
    EnableDisableButtons();
+   UpdateStatusBar();
 }
 
 void ControlToolBar::SetStop(bool down)
@@ -714,11 +721,13 @@ void ControlToolBar::OnPlay(wxCommandEvent & WXUNUSED(evt))
    if (p) p->TP_DisplaySelection();
 
    PlayDefault();
+   UpdateStatusBar();
 }
 
 void ControlToolBar::OnStop(wxCommandEvent & WXUNUSED(evt))
 {
    StopPlaying();
+   UpdateStatusBar();
 }
 
 void ControlToolBar::PlayDefault()
@@ -972,6 +981,7 @@ void ControlToolBar::OnRecord(wxCommandEvent &evt)
          SetRecord(false);
       }
    }
+   UpdateStatusBar();
 }
 
 
@@ -996,6 +1006,7 @@ void ControlToolBar::OnPause(wxCommandEvent & WXUNUSED(evt))
    }
 
    gAudioIO->SetPaused(mPaused);
+   UpdateStatusBar();
 }
 
 void ControlToolBar::OnRewind(wxCommandEvent & WXUNUSED(evt))
@@ -1069,3 +1080,45 @@ void ControlToolBar::ClearCutPreviewTracks()
    }
 }
 
+// works out the width of the field in the status bar needed for the state (eg play, record pause)
+int ControlToolBar::WidthForStatusBar()
+{
+   wxStatusBar* sb = GetActiveProject()->GetStatusBar();
+   int xMax = 0;
+   int x, y;
+
+   sb->GetTextExtent(mStatePlay + wxT(" ") + mStatePause, &x, &y);
+   if (x > xMax)
+      xMax = x;
+
+   sb->GetTextExtent(mStateStop + wxT(" ") + mStatePause, &x, &y);
+   if (x > xMax)
+      xMax = x;
+
+   sb->GetTextExtent(mStateRecord + wxT(" ") + mStatePause, &x, &y);
+   if (x > xMax)
+      xMax = x;
+
+   return xMax + 30;    // added constant needed because xMax isn't large enough for some reason, plus some space.
+}
+
+void ControlToolBar::UpdateStatusBar()
+{
+   wxString state;
+
+   if (mPlay->IsDown())
+      state = mStatePlay;
+   else if (mRecord->IsDown())
+      state = mStateRecord;
+   else
+      state = mStateStop;
+
+   if (mPause->IsDown())
+   {
+      state.Append(wxT(" "));
+      state.Append(mStatePause);
+   }
+
+   GetActiveProject()->GetStatusBar()->SetStatusText(state);
+}
+

src/toolbars/ControlToolBar.h

@@ -85,6 +85,8 @@ class ControlToolBar:public ToolBar {
    virtual void ReCreateButtons();
    void RegenerateToolsTooltips();
 
+   int WidthForStatusBar();
+
  private:
 
    AButton *MakeButton(teBmps eEnabledUp, teBmps eEnabledDown, teBmps eDisabled,
@@ -102,6 +104,7 @@ class ControlToolBar:public ToolBar {
    void SetupCutPreviewTracks(double playStart, double cutStart,
                              double cutEnd, double playEnd);
    void ClearCutPreviewTracks();
+   void UpdateStatusBar();
 
    enum
    {
@@ -135,6 +138,12 @@ class ControlToolBar:public ToolBar {
 
    TrackList* mCutPreviewTracks;
 
+   // strings for status bar
+   wxString mStatePlay;
+   wxString mStateStop;
+   wxString mStateRecord;
+   wxString mStatePause;
+
  public:
 
    DECLARE_CLASS(ControlToolBar);