[welcome page] add a minmium width to the recent project list

src/app/qgswelcomepageitemsmodel.cpp

@@ -92,13 +92,23 @@ QSize QgsWelcomePageItemDelegate::sizeHint( const QStyleOptionViewItem & option,
   QTextDocument doc;
   QPixmap icon = qvariant_cast<QPixmap>( index.data( Qt::DecorationRole ) );
 
+  int width;
+  if ( option.rect.width() < 450 )
+  {
+    width = 450;
+  } 
+  else 
+  {
+    width = option.rect.width();
+  }
+
   int titleSize = QApplication::fontMetrics().height() * 1.1;
   int textSize = titleSize * 0.85;
 
   doc.setHtml( QString( "<div style='font-size:%1px;'><span style='font-size:%2px;font-weight:bold;'>%3</span><br>%4<br>%5</div>" ).arg( textSize ).arg( titleSize ).arg( index.data( QgsWelcomePageItemsModel::TitleRole ).toString() ).arg( index.data( QgsWelcomePageItemsModel::PathRole ).toString() ).arg( index.data( QgsWelcomePageItemsModel::CrsRole ).toString() ) );
-  doc.setTextWidth( option.rect.width() - ( !icon.isNull() ? icon.width() + 35 : 35 ) );
+  doc.setTextWidth( width - ( !icon.isNull() ? icon.width() + 35 : 35 ) );
 
-  return QSize( option.rect.width(), qMax( doc.size().height() + 10, ( double )icon.height() ) + 20 );
+  return QSize( width, qMax( doc.size().height() + 10, ( double )icon.height() ) + 20 );
 }
 
 QgsWelcomePageItemsModel::QgsWelcomePageItemsModel( QObject* parent )