/// This is the function which actually obeys one command. Rather than applying
/// the command directly, an event containing a reference to the command is sent
/// to the main (GUI) thread. This is because having more than one thread access
/// the GUI at a time causes problems with wxwidgets.
int ExecCommand2(wxString *pIn, wxString *pOut)
{
{
CommandBuilder builder(*pIn);
if (builder.WasValid())
{
AudacityProject *project = GetActiveProject();
OldStyleCommandPointer cmd = builder.GetCommand();
AppCommandEvent ev;
ev.SetCommand(cmd);
AudacityApp & App = wxGetApp();
App.OnReceiveCommand(ev);
*pOut = wxEmptyString;
}
else
{
*pOut = wxT("Syntax error!\n");
*pOut += builder.GetErrorMessage() + wxT("\n");
}
}
// Wait until all responses from the command have been received.
// The last response is signalled by an empty line.
wxString msg = ScriptCommandRelay::ReceiveResponse().GetMessage();
while (msg != wxT("\n"))
{
//wxLogDebug( "Msg: %s", msg );
*pOut += msg + wxT("\n");
msg = ScriptCommandRelay::ReceiveResponse().GetMessage();
}
return 0;
}
/// Send a command to a project, to be applied in that context.
void ScriptCommandRelay::PostCommand(AudacityProject *project, const OldStyleCommandPointer &cmd)
{
wxASSERT(project != NULL);
wxASSERT(cmd != NULL);
AppCommandEvent ev;
ev.SetCommand(cmd);
project->GetEventHandler()->AddPendingEvent(ev);
}
/// Send a command to a project, to be applied in that context.
void ScriptCommandRelay::PostCommand(AudacityProject *project, Command *cmd)
{
wxASSERT(project != NULL);
wxASSERT(cmd != NULL);
AppCommandEvent ev;
ev.SetCommand(cmd);
projectGetEventHandler()ct->AddPendingEvent(ev);
}
void CommandHandler::OnReceiveCommand(AppCommandEvent &event)
{
// First retrieve the actual command from the event 'envelope'.
Command *cmd = event.GetCommand();
// Then apply it to current application & project. Note that the
// command may change the context - for example, switching to a
// different project.
cmd->Apply(*mCurrentContext);
// Done with the command so delete it.
delete cmd;
// Redraw the project
mCurrentContext->proj->RedrawProject();
}
void CommandHandler::OnReceiveCommand(AppCommandEvent &event)
{
// First retrieve the actual command from the event 'envelope'.
CommandHolder cmd = event.GetCommand();
// JKC: In case the user changed the project, let us track that.
// This saves us the embarrassment (crash) of a NEW project
// being opened, the old one closed and still trying to act
// on the old one.
SetProject( GetActiveProject() );
// Then apply it to current application & project. Note that the
// command may change the context - for example, switching to a
// different project.
cmd->Apply(*mCurrentContext);
// Redraw the project
mCurrentContext->GetProject()->RedrawProject();
}
