Refactor loading song errors notification

src/core/Engine.cpp

@@ -40,7 +40,6 @@
 
 #include "GuiApplication.h"
 
-bool Engine::s_hasGUI = true;
 float Engine::s_framesPerTick;
 Mixer* Engine::s_mixer = NULL;
 FxMixer * Engine::s_fxMixer = NULL;

src/core/Plugin.cpp

@@ -35,7 +35,7 @@
 #include "ConfigManager.h"
 #include "DummyPlugin.h"
 #include "AutomatableModel.h"
-#include "MainWindow.h"
+#include "Song.h"
 
 
 static PixmapLoader __dummy_loader;
@@ -128,7 +128,7 @@ Plugin * Plugin::instantiate( const QString & pluginName, Model * parent,
 
 void Plugin::collectErrorForUI( QString err_msg )
 {
-	gui->mainWindow()->collectError( err_msg );
+	Engine::getSong()->collectError( err_msg );
 }
 
 

src/core/Song.cpp

@@ -23,7 +23,7 @@
  */
 
 #include "Song.h"
-
+#include <QTextStream>
 #include <QCoreApplication>
 #include <QFile>
 #include <QFileInfo>
@@ -90,6 +90,7 @@ Song::Song() :
 	m_playing( false ),
 	m_paused( false ),
 	m_loadingProject( false ),
+	m_errors( new QList<QString>() ),
 	m_playMode( Mode_None ),
 	m_length( 0 ),
 	m_trackToPlay( NULL ),
@@ -914,10 +915,6 @@ void Song::loadProject( const QString & _file_name )
 	m_loadingProject = true;
 
 	Engine::projectJournal()->setJournalling( false );
-	if( gui )
-	{
-		gui->mainWindow()->clearErrors();
-	}
 
 	m_fileName = _file_name;
 	m_oldFileName = _file_name;
@@ -932,6 +929,8 @@ void Song::loadProject( const QString & _file_name )
 
 	clearProject();
 
+	clearErrors();
+
 	DataFile::LocaleHelper localeHelper( DataFile::LocaleHelper::ModeLoad );
 
 	Engine::mixer()->lock();
@@ -1029,9 +1028,17 @@ void Song::loadProject( const QString & _file_name )
 
 	emit projectLoaded();
 
-	if( gui )
+	if ( hasErrors())
 	{
-		gui->mainWindow()->showErrors( tr( "The following errors occured while loading: " ) );
+		if ( Engine::hasGUI() )
+		{
+			QMessageBox::warning( NULL, "LMMS Error report", *errorSummary(),
+							QMessageBox::Ok );
+		}
+		else
+		{
+			QTextStream(stderr) << *Engine::getSong()->errorSummary() << endl;
+		}
 	}
 
 	m_loadingProject = false;
@@ -1322,5 +1329,38 @@ void Song::removeController( Controller * _controller )
 
 
 
+void Song::clearErrors()
+{
+	m_errors->clear();
+}
 
 
+
+void Song::collectError( const QString error )
+{
+	m_errors->append( error );
+}
+
+
+
+bool Song::hasErrors()
+{
+	return ( m_errors->length() > 0 );
+}
+
+
+
+QString* Song::errorSummary()
+{
+	QString* errors = new QString();
+
+	for ( int i = 0 ; i < m_errors->length() ; i++ )
+	{
+		errors->append( m_errors->value( i ) + "\n" );
+	}
+
+	errors->prepend( "\n\n" );
+	errors->prepend( tr( "The following errors occured while loading: " ) );
+
+	return errors;
+}

src/gui/MainWindow.cpp

@@ -190,8 +190,6 @@ MainWindow::MainWindow() :
 	vbox->addWidget( w );
 	setCentralWidget( main_widget );
 
-	m_errors = new QList<QString>();
-
 	m_updateTimer.start( 1000 / 20, this );	// 20 fps
 
 	if( ConfigManager::inst()->value( "ui", "enableautosave" ).toInt() )
@@ -1225,43 +1223,3 @@ void MainWindow::autoSave()
 		QTimer::singleShot( 10*1000, this, SLOT( autoSave() ) );
 	}
 }
-
-
-
-void MainWindow::collectErrors(const QList<QString>* errors )
-{
-	m_errors->append( *errors );
-}
-
-
-
-void MainWindow::collectError( const QString & error )
-{
-	m_errors->append( error );
-}
-
-
-
-void MainWindow::clearErrors()
-{
-	m_errors->clear();
-}
-
-
-
-void MainWindow::showErrors( const QString & message )
-{
-    if ( m_errors->length() != 0 )
-	{   QString* errors = new QString();
-		for ( int i = 0 ; i < m_errors->length() ; i++ )
-		{
-			errors->append( m_errors->value( i ) + "\n" );
-		}
-		errors->prepend( "\n\n" );
-		errors->prepend( message );
-		QMessageBox::warning( NULL,
-			"LMMS Error report",
-			*errors,
-			QMessageBox::Ok );
-	}
-}