]> git.sesse.net Git - mlt/blobdiff - src/modules/qimage/kdenlivetitle_wrapper.cpp
Add support for Qt 5, drop support for Qt 3 and KDE 3.
[mlt] / src / modules / qimage / kdenlivetitle_wrapper.cpp
old mode 100644 (file)
new mode 100755 (executable)
index 60869a3..2d5bc4d
 
 #include "kdenlivetitle_wrapper.h"
 
-#include <QtGui/QImage>
-#include <QtGui/QPainter>
-#include <QtCore/QDebug>
-#include <QtGui/QApplication>
-#include <QtCore/QMutex>
-#include <QtGui/QGraphicsScene>
-#include <QtGui/QGraphicsTextItem>
-#include <QtSvg/QGraphicsSvgItem>
-#include <QtGui/QTextCursor>
-#include <QtGui/QStyleOptionGraphicsItem>
-
-#include <QtCore/QString>
-
-#include <QtXml/QDomElement>
-#include <QtCore/QRectF>
-#include <QtGui/QColor>
-#include <QtGui/QWidget>
+#include <QImage>
+#include <QPainter>
+#include <QDebug>
+#include <QApplication>
+#include <QMutex>
+#include <QGraphicsScene>
+#include <QGraphicsTextItem>
+#include <QGraphicsSvgItem>
+#include <QSvgRenderer>
+#include <QTextCursor>
+#include <QTextDocument>
+#include <QStyleOptionGraphicsItem>
+
+#include <QString>
+
+#include <QDomElement>
+#include <QRectF>
+#include <QColor>
+#include <QWidget>
+#include <framework/mlt_log.h>
+
+#if QT_VERSION >= 0x040600
+#include <QGraphicsEffect>
+#include <QGraphicsBlurEffect>
+#include <QGraphicsDropShadowEffect>
+#endif
 
 static QApplication *app = NULL;
+Q_DECLARE_METATYPE(QTextCursor);
 
-class ImageItem: public QGraphicsRectItem
+class ImageItem: public QGraphicsItem
 {
 public:
     ImageItem(QImage img)
@@ -51,6 +61,12 @@ public:
 
 
 protected:
+
+virtual QRectF boundingRect() const
+{
+    return QRectF(0, 0, m_img.width(), m_img.height());
+}
+
 virtual void paint( QPainter *painter,
                        const QStyleOptionGraphicsItem * /*option*/,
                        QWidget* )
@@ -61,26 +77,6 @@ virtual void paint( QPainter *painter,
 };
 
 
-QString rectTransform( QString s, QTransform t )
-{
-       QStringList l = s.split( ',' );
-       return QString::number(l.at(0).toDouble() * t.m11()) + ',' + QString::number(l.at(1).toDouble() * t.m22()) + ',' + QString::number(l.at(2).toDouble() * t.m11()) + ',' + QString::number(l.at(3).toDouble() * t.m22());
-}
-
-QString colorToString( const QColor& c )
-{
-       QString ret = "%1,%2,%3,%4";
-       ret = ret.arg( c.red() ).arg( c.green() ).arg( c.blue() ).arg( c.alpha() );
-       return ret;
-}
-
-QString rectFToString( const QRectF& c )
-{
-       QString ret = "%1,%2,%3,%4";
-       ret = ret.arg( c.top() ).arg( c.left() ).arg( c.width() ).arg( c.height() );
-       return ret;
-}
-
 QRectF stringToRect( const QString & s )
 {
 
@@ -113,7 +109,7 @@ QTransform stringToTransform( const QString& s )
 static void qscene_delete( void *data )
 {
        QGraphicsScene *scene = ( QGraphicsScene * )data;
-       delete scene;
+       if (scene) delete scene;
        scene = NULL;
 }
 
@@ -127,42 +123,63 @@ void loadFromXml( mlt_producer producer, QGraphicsScene *scene, const char *temp
        QString replacementText = QString::fromUtf8(templateText);
        doc.setContent(data);
        QDomElement title = doc.documentElement();
-       
+
        // Check for invalid title
        if ( title.isNull() || title.tagName() != "kdenlivetitle" ) return;
        
-       QTransform transform;
-       if ( title.hasAttribute("width") ) {
-           int originalWidth = title.attribute("width").toInt();
-           mlt_properties_set_int( producer_props, "_original_width", originalWidth );
-           int originalHeight = title.attribute("height").toInt();
-           mlt_properties_set_int( producer_props, "_original_height", originalHeight );
-           scene->setSceneRect(0, 0, originalWidth, originalHeight);
+       // Check title locale
+       if ( title.hasAttribute( "LC_NUMERIC" ) ) {
+           QString locale = title.attribute( "LC_NUMERIC" );
+           QLocale::setDefault( locale );
        }
+       
+        int originalWidth;
+        int originalHeight;
+       if ( title.hasAttribute("width") ) {
+            originalWidth = title.attribute("width").toInt();
+            originalHeight = title.attribute("height").toInt();
+            scene->setSceneRect(0, 0, originalWidth, originalHeight);
+        }
+        else {
+            originalWidth = scene->sceneRect().width();
+            originalHeight = scene->sceneRect().height();
+        }
+        if ( title.hasAttribute( "out" ) ) {
+            mlt_properties_set_position( producer_props, "_animation_out", title.attribute( "out" ).toDouble() );
+        }
+        else {
+            mlt_properties_set_position( producer_props, "_animation_out", mlt_producer_get_out( producer ) );
+        }
+        
+       mlt_properties_set_int( producer_props, "_original_width", originalWidth );
+       mlt_properties_set_int( producer_props, "_original_height", originalHeight );
 
+       QDomNode node;
        QDomNodeList items = title.elementsByTagName("item");
         for ( int i = 0; i < items.count(); i++ )
        {
                QGraphicsItem *gitem = NULL;
-               int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
+               node = items.item( i );
+               QDomNamedNodeMap nodeAttributes = node.attributes();
+               int zValue = nodeAttributes.namedItem( "z-index" ).nodeValue().toInt();
                if ( zValue > -1000 )
                {
-                       if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsTextItem" )
+                       if ( nodeAttributes.namedItem( "type" ).nodeValue() == "QGraphicsTextItem" )
                        {
-                               QDomNamedNodeMap txtProperties = items.item( i ).namedItem( "content" ).attributes();
+                               QDomNamedNodeMap txtProperties = node.namedItem( "content" ).attributes();
                                QFont font( txtProperties.namedItem( "font" ).nodeValue() );
-                                       QDomNode node = txtProperties.namedItem( "font-bold" );
-                               if ( !node.isNull() )
+                               QDomNode propsNode = txtProperties.namedItem( "font-bold" );
+                               if ( !propsNode.isNull() )
                                {
-                               // Old: Bold/Not bold.
-                                       font.setBold( node.nodeValue().toInt() );
+                                       // Old: Bold/Not bold.
+                                       font.setBold( propsNode.nodeValue().toInt() );
                                }
                                else
                                {
                                        // New: Font weight (QFont::)
                                        font.setWeight( txtProperties.namedItem( "font-weight" ).nodeValue().toInt() );
                                }
-                                       font.setItalic( txtProperties.namedItem( "font-italic" ).nodeValue().toInt() );
+                               font.setItalic( txtProperties.namedItem( "font-italic" ).nodeValue().toInt() );
                                font.setUnderline( txtProperties.namedItem( "font-underline" ).nodeValue().toInt() );
                                // Older Kdenlive version did not store pixel size but point size
                                if ( txtProperties.namedItem( "font-pixel-size" ).isNull() )
@@ -174,24 +191,47 @@ void loadFromXml( mlt_producer producer, QGraphicsScene *scene, const char *temp
                                else
                                        font.setPixelSize( txtProperties.namedItem( "font-pixel-size" ).nodeValue().toInt() );
                                QColor col( stringToColor( txtProperties.namedItem( "font-color" ).nodeValue() ) );
-                               QString text = items.item( i ).namedItem( "content" ).firstChild().nodeValue();
+                               QString text = node.namedItem( "content" ).firstChild().nodeValue();
                                if ( !replacementText.isEmpty() )
                                {
                                        text = text.replace( "%s", replacementText );
                                }
                                QGraphicsTextItem *txt = scene->addText(text, font);
-                               txt->setDefaultTextColor( col );
+                               if (txtProperties.namedItem("font-outline").nodeValue().toDouble()>0.0){
+                                       QTextDocument *doc = txt->document();
+                                       // Make sure some that the text item does not request refresh by itself
+                                       doc->blockSignals(true);
+                                       QTextCursor cursor(doc);
+                                       cursor.select(QTextCursor::Document);
+                                       QTextCharFormat format;
+                                       format.setTextOutline(
+                                                       QPen(QColor( stringToColor( txtProperties.namedItem( "font-outline-color" ).nodeValue() ) ),
+                                                       txtProperties.namedItem("font-outline").nodeValue().toDouble(),
+                                                       Qt::SolidLine,Qt::RoundCap,Qt::RoundJoin)
+                                       );
+                                       format.setForeground(QBrush(col));
+
+                                       cursor.mergeCharFormat(format);
+                               } else {
+                                       txt->setDefaultTextColor( col );
+                               }
+                               
+                               // Effects
+                               if (!txtProperties.namedItem( "typewriter" ).isNull()) {
+                                       // typewriter effect
+                                       mlt_properties_set_int( producer_props, "_animated", 1 );
+                                       QStringList effetData = QStringList() << "typewriter" << text << txtProperties.namedItem( "typewriter" ).nodeValue();
+                                       txt->setData(0, effetData);
+                                       if ( !txtProperties.namedItem( "textwidth" ).isNull() )
+                                               txt->setData( 1, txtProperties.namedItem( "textwidth" ).nodeValue() );
+                               }
+                               
                                if ( txtProperties.namedItem( "alignment" ).isNull() == false )
                                {
                                        txt->setTextWidth( txt->boundingRect().width() );
-                                       QTextCursor cur = txt->textCursor();
-                                       QTextBlockFormat format = cur.blockFormat();
-                                       format.setAlignment(( Qt::Alignment ) txtProperties.namedItem( "alignment" ).nodeValue().toInt() );
-                                       cur.select( QTextCursor::Document );
-                                       cur.setBlockFormat( format );
-                                       txt->setTextCursor( cur );
-                                       cur.clearSelection();
-                                       txt->setTextCursor( cur );
+                                       QTextOption opt = txt->document()->defaultTextOption ();
+                                       opt.setAlignment(( Qt::Alignment ) txtProperties.namedItem( "alignment" ).nodeValue().toInt() );
+                                       txt->document()->setDefaultTextOption (opt);
                                }
                                        if ( !txtProperties.namedItem( "kdenlive-axis-x-inverted" ).isNull() )
                                {
@@ -203,44 +243,79 @@ void loadFromXml( mlt_producer producer, QGraphicsScene *scene, const char *temp
                                }
                                        gitem = txt;
                        }
-                       else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsRectItem" )
+                       else if ( nodeAttributes.namedItem( "type" ).nodeValue() == "QGraphicsRectItem" )
                        {
-                               QString rect = items.item( i ).namedItem( "content" ).attributes().namedItem( "rect" ).nodeValue();
-                               QString br_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "brushcolor" ).nodeValue();
-                               QString pen_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "pencolor" ).nodeValue();
-                               double penwidth = items.item( i ).namedItem( "content" ).attributes().namedItem( "penwidth") .nodeValue().toDouble();
-                               QGraphicsRectItem *rec = scene->addRect( stringToRect( rect ), QPen( QBrush( stringToColor( pen_str ) ), penwidth ), QBrush( stringToColor( br_str ) ) );
+                               QString rect = node.namedItem( "content" ).attributes().namedItem( "rect" ).nodeValue();
+                               QString br_str = node.namedItem( "content" ).attributes().namedItem( "brushcolor" ).nodeValue();
+                               QString pen_str = node.namedItem( "content" ).attributes().namedItem( "pencolor" ).nodeValue();
+                               double penwidth = node.namedItem( "content" ).attributes().namedItem( "penwidth") .nodeValue().toDouble();
+                               QGraphicsRectItem *rec = scene->addRect( stringToRect( rect ), QPen( QBrush( stringToColor( pen_str ) ), penwidth, Qt::SolidLine, Qt::SquareCap, Qt::RoundJoin ), QBrush( stringToColor( br_str ) ) );
                                gitem = rec;
                        }
-                       else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsPixmapItem" )
+                       else if ( nodeAttributes.namedItem( "type" ).nodeValue() == "QGraphicsPixmapItem" )
                        {
-                               const QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
-                               QImage img( url );
+                               const QString url = node.namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
+                               const QString base64 = items.item(i).namedItem("content").attributes().namedItem("base64").nodeValue();
+                               QImage img;
+                               if (base64.isEmpty()){
+                                       img.load(url);
+                               }else{
+                                       img.loadFromData(QByteArray::fromBase64(base64.toLatin1()));
+                               }
                                ImageItem *rec = new ImageItem(img);
                                scene->addItem( rec );
                                gitem = rec;
                        }
-                       else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsSvgItem" )
+                       else if ( nodeAttributes.namedItem( "type" ).nodeValue() == "QGraphicsSvgItem" )
                        {
-                               const QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
-                               QGraphicsSvgItem *rec = new QGraphicsSvgItem(url);
-                               scene->addItem(rec);
-                               gitem = rec;
+                               QString url = items.item(i).namedItem("content").attributes().namedItem("url").nodeValue();
+                               QString base64 = items.item(i).namedItem("content").attributes().namedItem("base64").nodeValue();
+                               QGraphicsSvgItem *rec = NULL;
+                               if (base64.isEmpty()){
+                                       rec = new QGraphicsSvgItem(url);
+                               }else{
+                                       rec = new QGraphicsSvgItem();
+                                       QSvgRenderer *renderer= new QSvgRenderer(QByteArray::fromBase64(base64.toLatin1()), rec );
+                                       rec->setSharedRenderer(renderer);
+                               }
+                               if (rec){
+                                       scene->addItem(rec);
+                                       gitem = rec;
+                               }
                        }
                }
                //pos and transform
                if ( gitem )
                {
-                       QPointF p( items.item( i ).namedItem( "position" ).attributes().namedItem( "x" ).nodeValue().toDouble(),
-                                  items.item( i ).namedItem( "position" ).attributes().namedItem( "y" ).nodeValue().toDouble() );
+                       QPointF p( node.namedItem( "position" ).attributes().namedItem( "x" ).nodeValue().toDouble(),
+                                  node.namedItem( "position" ).attributes().namedItem( "y" ).nodeValue().toDouble() );
                        gitem->setPos( p );
-                       gitem->setTransform( stringToTransform( items.item( i ).namedItem( "position" ).firstChild().firstChild().nodeValue() ) );
-                       int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
+                       gitem->setTransform( stringToTransform( node.namedItem( "position" ).firstChild().firstChild().nodeValue() ) );
+                       int zValue = nodeAttributes.namedItem( "z-index" ).nodeValue().toInt();
                        gitem->setZValue( zValue );
+
+#if QT_VERSION >= 0x040600
+                       // effects
+                       QDomNode eff = items.item(i).namedItem("effect");
+                       if (!eff.isNull()) {
+                               QDomElement e = eff.toElement();
+                               if (e.attribute("type") == "blur") {
+                                       QGraphicsBlurEffect *blur = new QGraphicsBlurEffect();
+                                       blur->setBlurRadius(e.attribute("blurradius").toInt());
+                                       gitem->setGraphicsEffect(blur);
+                               }
+                               else if (e.attribute("type") == "shadow") {
+                                       QGraphicsDropShadowEffect *shadow = new QGraphicsDropShadowEffect();
+                                       shadow->setBlurRadius(e.attribute("blurradius").toInt());
+                                       shadow->setOffset(e.attribute("xoffset").toInt(), e.attribute("yoffset").toInt());
+                                       gitem->setGraphicsEffect(shadow);
+                               }
+                       }
+#endif
                }
        }
 
-       QDomNode n = doc.documentElement().firstChildElement("background");
+       QDomNode n = title.firstChildElement("background");
        if (!n.isNull()) {
                QColor color = QColor( stringToColor( n.attributes().namedItem( "color" ).nodeValue() ) );
                 if (color.alpha() > 0) {
@@ -251,13 +326,15 @@ void loadFromXml( mlt_producer producer, QGraphicsScene *scene, const char *temp
        }
 
        QString startRect;
-       n = doc.documentElement().firstChildElement( "startviewport" );
-       if (!n.isNull())
+       n = title.firstChildElement( "startviewport" );
+        // Check if node exists, if it has an x attribute, it is an old version title, don't use viewport
+       if (!n.isNull() && !n.toElement().hasAttribute("x"))
        {
                startRect = n.attributes().namedItem( "rect" ).nodeValue();
        }
-       n = doc.documentElement().firstChildElement( "endviewport" );
-       if (!n.isNull())
+       n = title.firstChildElement( "endviewport" );
+        // Check if node exists, if it has an x attribute, it is an old version title, don't use viewport
+       if (!n.isNull() && !n.toElement().hasAttribute("x"))
        {
                QString rect = n.attributes().namedItem( "rect" ).nodeValue();
                if (startRect != rect)
@@ -274,6 +351,7 @@ void drawKdenliveTitle( producer_ktitle self, mlt_frame frame, int width, int he
 {
        // Obtain the producer 
        mlt_producer producer = &self->parent;
+       mlt_profile profile = mlt_service_profile ( MLT_PRODUCER_SERVICE( producer ) ) ;
        mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
 
        // Obtain properties of frame
@@ -282,7 +360,7 @@ void drawKdenliveTitle( producer_ktitle self, mlt_frame frame, int width, int he
         pthread_mutex_lock( &self->mutex );
        
        // Check if user wants us to reload the image
-       if ( force_refresh == 1 || width != self->current_width || height != self->current_height || mlt_properties_get( producer_props, "_endrect" ) != NULL )
+       if ( mlt_properties_get( producer_props, "_animated" ) != NULL || force_refresh == 1 || width != self->current_width || height != self->current_height || mlt_properties_get( producer_props, "_endrect" ) != NULL )
        {
                //mlt_cache_item_close( self->image_cache );
                self->current_image = NULL;
@@ -299,20 +377,50 @@ void drawKdenliveTitle( producer_ktitle self, mlt_frame frame, int width, int he
                        scene = NULL;
                        mlt_properties_set_data( producer_props, "qscene", NULL, 0, NULL, NULL );
                }
+
                if ( scene == NULL )
                {
                        int argc = 1;
                        char* argv[1];
                        argv[0] = (char*) "xxx";
-                       if (qApp) {
-                               app = qApp;
-                       }
-                       else {
-                               app=new QApplication( argc,argv ); //, QApplication::Tty );
+                       
+                       // Warning: all Qt graphic objects (QRect, ...) must be initialized AFTER 
+                       // the QApplication is created, otherwise their will be NULL
+                       
+                       if ( app == NULL ) {
+                               if ( qApp ) {
+                                       app = qApp;
+                               }
+                               else {
+#ifdef linux
+                                       if ( getenv("DISPLAY") == 0 )
+                                       {
+                                               mlt_log_panic( MLT_PRODUCER_SERVICE( producer ), "Error, cannot render titles without an X11 environment.\nPlease either run melt from an X session or use a fake X server like xvfb:\nxvfb-run -a melt (...)\n" );
+                                               pthread_mutex_unlock( &self->mutex );
+                                               return;
+                                       }
+#endif
+                                       app = new QApplication( argc, argv );                           
+                                       const char *localename = mlt_properties_get_lcnumeric( MLT_SERVICE_PROPERTIES( MLT_PRODUCER_SERVICE( producer ) ) );
+                                       QLocale::setDefault( QLocale( localename ) );
+                               }
+                               qRegisterMetaType<QTextCursor>( "QTextCursor" );
                        }
                        scene = new QGraphicsScene();
-                       loadFromXml( producer, scene, mlt_properties_get( producer_props, "xmldata" ), mlt_properties_get( producer_props, "templatetext" ) );
+                       scene->setItemIndexMethod( QGraphicsScene::NoIndex );
+                        scene->setSceneRect(0, 0, mlt_properties_get_int( properties, "width" ), mlt_properties_get_int( properties, "height" ));
+                       if ( mlt_properties_get( producer_props, "resource" ) && mlt_properties_get( producer_props, "resource" )[0] != '\0' )
+                       {
+                               // The title has a resource property, so we read all properties from the resource.
+                               // Do not serialize the xmldata
+                               loadFromXml( producer, scene, mlt_properties_get( producer_props, "_xmldata" ), mlt_properties_get( producer_props, "templatetext" ) );
+                       }
+                       else
+                       {
+                               // The title has no resource, all data should be serialized
+                               loadFromXml( producer, scene, mlt_properties_get( producer_props, "xmldata" ), mlt_properties_get( producer_props, "templatetext" ) );
+                         
+                       }
                        mlt_properties_set_data( producer_props, "qscene", scene, 0, ( mlt_destructor )qscene_delete, NULL );
                }
                 
@@ -325,7 +433,38 @@ void drawKdenliveTitle( producer_ktitle self, mlt_frame frame, int width, int he
                if (start.isNull()) {
                    start = QRectF( 0, 0, originalWidth, originalHeight );
                }
-       
+
+               // Effects
+               QList <QGraphicsItem *> items = scene->items();
+               QGraphicsTextItem *titem = NULL;
+               for (int i = 0; i < items.count(); i++) {
+                   titem = static_cast <QGraphicsTextItem*> ( items.at( i ) );
+                   if (titem && !titem->data( 0 ).isNull()) {
+                           QStringList params = titem->data( 0 ).toStringList();
+                           if (params.at( 0 ) == "typewriter" ) {
+                                   // typewriter effect has 2 param values:
+                                   // the keystroke delay and a start offset, both in frames
+                                   QStringList values = params.at( 2 ).split( ";" );
+                                   int interval = qMax( 0, ( ( int ) position - values.at( 1 ).toInt()) / values.at( 0 ).toInt() );
+                                   QTextCursor cursor = titem->textCursor();
+                                   cursor.movePosition(QTextCursor::EndOfBlock);
+                                   // get the font format
+                                   QTextCharFormat format = cursor.charFormat();
+                                   cursor.select(QTextCursor::Document);
+                                   QString txt = params.at( 1 ).left( interval );
+                                   // If the string to insert is empty, insert a space / linebreak so that we don't loose
+                                   // formatting infos for the next iterations
+                                   int lines = params.at( 1 ).count( '\n' );
+                                   QString empty = " ";
+                                   for (int i = 0; i < lines; i++)
+                                           empty.append( "\n " );
+                                   cursor.insertText( txt.isEmpty() ? empty : txt, format );
+                                   if ( !titem->data( 1 ).isNull() )
+                                         titem->setTextWidth( titem->data( 1 ).toDouble() );
+                           }
+                   }
+               }
+
                //must be extracted from kdenlive title
                QImage img( width, height, QImage::Format_ARGB32 );
                img.fill( 0 );
@@ -333,16 +472,42 @@ void drawKdenliveTitle( producer_ktitle self, mlt_frame frame, int width, int he
                p1.begin( &img );
                p1.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing );
                //| QPainter::SmoothPixmapTransform );
+                mlt_position anim_out = mlt_properties_get_position( producer_props, "_animation_out" );
+
                if (end.isNull())
                {
                        scene->render( &p1, source, start, Qt::IgnoreAspectRatio );
                }
-               else
-               {
-                       QPointF topleft = start.topLeft() + ( end.topLeft() - start.topLeft() ) * position;
-                       QPointF bottomRight = start.bottomRight() + ( end.bottomRight() - start.bottomRight() ) * position;
+               else if ( position > anim_out ) {
+                        scene->render( &p1, source, end, Qt::IgnoreAspectRatio );
+                }
+               else {
+                        double percentage = 0;
+                       if ( position && anim_out )
+                               percentage = position / anim_out;
+                       QPointF topleft = start.topLeft() + ( end.topLeft() - start.topLeft() ) * percentage;
+                       QPointF bottomRight = start.bottomRight() + ( end.bottomRight() - start.bottomRight() ) * percentage;
                        const QRectF r1( topleft, bottomRight );
                        scene->render( &p1, source, r1, Qt::IgnoreAspectRatio );
+                       if ( profile && !profile->progressive ){
+                               int line=0;
+                               double percentage_next_filed    = ( position + 0.5 ) / anim_out;
+                               QPointF topleft_next_field = start.topLeft() + ( end.topLeft() - start.topLeft() ) * percentage_next_filed;
+                               QPointF bottomRight_next_field = start.bottomRight() + ( end.bottomRight() - start.bottomRight() ) * percentage_next_filed;
+                               const QRectF r2( topleft_next_field, bottomRight_next_field );
+                               QImage img1( width, height, QImage::Format_ARGB32 );
+                               img1.fill( 0 );
+                               QPainter p2;
+                               p2.begin(&img1);
+                               p2.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing );
+                               scene->render(&p2,source,r2,  Qt::IgnoreAspectRatio );
+                               p2.end();
+                               int next_field_line = (  mlt_properties_get_int( producer_props, "top_field_first" ) ? 1 : 0 );
+                               for (line = next_field_line ;line<height;line+=2){
+                                               memcpy(img.scanLine(line),img1.scanLine(line),img.bytesPerLine());
+                               }
+
+                       }
                }
                p1.end();