Updated to demo new method of taking over TrackPanel.

lib-src/mod-track-panel/ModTrackPanelCallback.cpp

@@ -32,6 +32,7 @@ click from the menu into the actual function to be called.
 #include "Project.h"
 #include "LoadModules.h"
 #include "Registrar.h"
+#include "TrackPanel2.h"
 
 /*
 There are several functions that can be used in a GUI module.
@@ -67,7 +68,7 @@ class ModTrackPanelCallback
 {
 public:
    void OnFuncShowAudioExplorer();
-   void OnFuncShowAnotherExtension();
+   void OnFuncReplaceTrackPanel();
 };
 
 typedef void (ModTrackPanelCallback::*ModTrackPanelCommandFunction)();
@@ -114,9 +115,17 @@ void ModTrackPanelCallback::OnFuncShowAudioExplorer()
    Registrar::ShowNewPanel();
 }
 
-void ModTrackPanelCallback::OnFuncShowAnotherExtension()
+void ModTrackPanelCallback::OnFuncReplaceTrackPanel()
 {
+   // Upgrade the factory.  Now all TrackPanels will be created as TrackPanel 2's
+
+#if 0
+   AudacityProject *p = GetActiveProject();
+   wxASSERT( p!= NULL );
+   // Change it's type (No new storage allocated).
+   TrackPanel2::Upgrade( &p->mTrackPanel );
    int k=4;
+#endif
 }
 
 // Oooh look, we're using a NULL object, and hence a NULL 'this'.
@@ -150,6 +159,8 @@ MOD_TRACK_PANEL_DLL_API int ModuleDispatch(ModuleDispatchTypes type)
    {
    case AppInitialized:
       Registrar::Start();
+      // Demand that all track panels be created using the TrackPanel2Factory.
+      TrackPanel::FactoryFunction = TrackPanel2Factory;
       break;
    case AppQuiting:
       Registrar::Finish();
@@ -168,10 +179,11 @@ MOD_TRACK_PANEL_DLL_API int ModuleDispatch(ModuleDispatchTypes type)
          c->SetToMenu( pMenu );
          c->AddSeparator();
          // We add two new commands into the Analyze menu.
-         c->AddItem( _T("Audio Explorer..."), _T("Experimental GUI for audio analysis"),
+         c->AddItem( _T("Extra Dialog..."), _T("Experimental Extra Dialog for whatever you want."),
             ModTrackPanelFN( OnFuncShowAudioExplorer ) );
-         c->AddItem( _T("Another Extension..."), _T("Experimental GUI for other things"),
-            ModTrackPanelFN( OnFuncShowAnotherExtension ) );
+         //Second menu tweak no longer needed as we always make TrackPanel2's.
+         //c->AddItem( _T("Replace TrackPanel..."), _T("Replace Current TrackPanel with TrackPanel2"),
+         //   ModTrackPanelFN( OnFuncReplaceTrackPanel ) );
       }
       break;
    default:

lib-src/mod-track-panel/TrackPanel2.cpp

@@ -23,28 +23,35 @@
 #include "Registrar.h"
 #include "TrackPanel2.h"
 
+TrackPanel * TrackPanel2Factory(wxWindow * parent,
+   wxWindowID id,
+   const wxPoint & pos,
+   const wxSize & size,
+   TrackList * tracks,
+   ViewInfo * viewInfo,
+   TrackPanelListener * listener,
+   AdornedRulerPanel * ruler)
+{
+   return new TrackPanel2(
+      parent,
+      id,
+      pos,
+      size,
+      tracks,
+      viewInfo,
+      listener,
+      ruler);
+}
 
-void ShowTrackPanel()
+void ShowExtraDialog()
 {
    int k=42;
 
-   wxDialog Dlg(NULL, wxID_ANY, wxString(wxT("Experimental New TrackPanel")));
+   wxDialog Dlg(NULL, wxID_ANY, wxString(wxT("Experimental Extra Dialog")));
    ShuttleGui S(&Dlg, eIsCreating);
-#if 0
-   S.StartHorizontalLay(wxCENTER, false);
-   {
-      S.StartStatic(wxT(""), false);   
-      {
-         S.SetBorder(200);
-         S.AddFixedText(wxT("AAA"));
-      }
-      S.EndStatic();
-   }
-   S.EndHorizontalLay();
-#endif
    S.StartNotebook();
    {
-      S.StartNotebookPage( _("Panel") );
+      S.StartNotebookPage( _("Panel 1") );
       S.StartVerticalLay(1);
       {
          HtmlWindow *html = new LinkingHtmlWindow(S.GetParent(), -1,
@@ -52,7 +59,7 @@ void ShowTrackPanel()
                                                wxSize(600, 359), 
                                                wxHW_SCROLLBAR_AUTO | wxSUNKEN_BORDER);
          html->SetFocus();
-         html->SetPage(wxT("<h1><font color=\"blue\">TrackPanel</font></h1>This will be replaced with the panel"));
+         html->SetPage(wxT("<h1><font color=\"blue\">An Html Window</font></h1>Replace with whatever you like."));
          S.Prop(1).AddWindow( html, wxEXPAND );
       }
       S.EndVerticalLay();
@@ -89,7 +96,7 @@ int TrackPanel2Dispatch( Registrar & R, t_RegistrarDispatchType Type )
    switch( Type )
    {
    case RegResource:
-      R.pShowFn = ShowTrackPanel;
+      R.pShowFn = ShowExtraDialog;
       break;
    case RegArtist:
       break;
@@ -105,3 +112,22 @@ int TrackPanel2Dispatch( Registrar & R, t_RegistrarDispatchType Type )
    return 1;
 }
 
+TrackPanel2::TrackPanel2(
+   wxWindow * parent, wxWindowID id, const wxPoint & pos, const wxSize & size,
+   TrackList * tracks, ViewInfo * viewInfo, TrackPanelListener * listener,
+   AdornedRulerPanel * ruler) : 
+      TrackPanel(
+         parent, id, pos, size,
+         tracks, viewInfo, listener, ruler)
+{
+}
+
+
+// Here is a sample function that shows that TrackPanel2 is being invoked.
+void TrackPanel2::OnPaint(wxPaintEvent & event)
+{
+// Hmm... Log debug will only show if you open the log window.
+// wxLogDebug( wxT("Paint TrackPanel2 requested") );
+   TrackPanel::OnPaint( event );
+}
+

lib-src/mod-track-panel/TrackPanel2.h

@@ -11,10 +11,34 @@
 #ifndef __AUDACITY_TRACK_PANEL2__
 #define __AUDACITY_TRACK_PANEL2__
 
+#include "TrackPanel.h"
 
-class TrackPanel2 {
+class TrackPanel2 : public TrackPanel
+{
 public:
+   TrackPanel2( 
+      wxWindow * parent, wxWindowID id,
+      const wxPoint & pos,
+      const wxSize & size,
+      TrackList * tracks,
+      ViewInfo * viewInfo,
+      TrackPanelListener * listener,
+      AdornedRulerPanel * ruler);
 
+   // Upgrades an existing TrackPanel to a TrackPanel2
+   static void Upgrade( TrackPanel ** ppTrackPanel );
+
+   virtual void OnPaint(wxPaintEvent & event);
 };
 
+// Factory function.
+TrackPanel * TrackPanel2Factory(wxWindow * parent,
+   wxWindowID id,
+   const wxPoint & pos,
+   const wxSize & size,
+   TrackList * tracks,
+   ViewInfo * viewInfo,
+   TrackPanelListener * listener,
+   AdornedRulerPanel * ruler);
+
 #endif