Adding error check when loading a project.

The restored file doesn't always exist... (for instance, you didn't remount your third hard drive :D)

src/Library/Library.cpp

@@ -27,6 +27,8 @@
   */
 
 #include <QtDebug>
+#include <QMessageBox>
+
 #include "Library.h"
 #include "MetaDataManager.h"
 
@@ -128,6 +130,11 @@ void        Library::loadMedia( const QString& path, const QUuid& uuid )
             return ;
         }
     }
+    if ( QFile::exists( path ) == false )
+    {
+        QMessageBox::warning( NULL, tr( "Import error" ), tr( "Can't open file :" ) + path );
+        return ;
+    }
     Media*  media = new Media( path, uuid );
     connect( media, SIGNAL( metaDataComputed( Media* ) ), this, SLOT( metaDataComputed( Media* ) ) );
     MetaDataManager::getInstance()->computeMediaMetadata( media );

src/Workflow/MainWorkflow.cpp

@@ -26,6 +26,7 @@
 #include "MainWorkflow.h"
 #include "TrackWorkflow.h"
 #include "TrackHandler.h"
+#include "Library.h"
 
 //JUST FOR THE DEFINES !
 //TODO:
@@ -350,8 +351,11 @@ void        MainWorkflow::loadProject( const QDomElement& project )
                 clipProperty = clipProperty.nextSibling().toElement();
             }
 
+            if ( Library::getInstance()->getMedia( parent ) != NULL )
+            {
                 Clip*       c = new Clip( parent, begin, end );
                 addClip( c, trackId, startPos, trackType );
+            }
 
             clip = clip.nextSibling().toElement();
         }
@@ -371,7 +375,6 @@ void        MainWorkflow::saveProject( QDomDocument& doc, QDomElement& rootNode
 
 void        MainWorkflow::clear()
 {
-    qDebug() << "main workflow cleared";
     for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
         m_tracks[i]->clear();
     emit cleared();