]> 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 f71a73b..2d5bc4d
@@ -1,6 +1,7 @@
 /*
  * kdenlivetitle_wrapper.cpp -- kdenlivetitle wrapper
  * Copyright (c) 2009 Marco Gittler <g.marco@freenet.de>
+ * Copyright (c) 2009 Jean-Baptiste Mardelle <jb@kdenlive.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  */
 
 #include "kdenlivetitle_wrapper.h"
-#include <framework/mlt_producer.h>
-
-#include <QtGui/QImage>
-#include <QtGui/QPainter>
-<<<<<<< HEAD:src/modules/qimage/kdenlivetitle_wrapper.cpp
-#include <QtCore/QCoreApplication>
-=======
-#include <QtCore/QDebug>
->>>>>>> jbm/kdenlivetitle:src/modules/qimage/kdenlivetitle_wrapper.cpp
-#include <QtGui/QApplication>
-#include <QtCore/QFile>
-#include <QtGui/QGraphicsScene>
-#include <QtGui/QGraphicsTextItem>
-#include <QtGui/QTextCursor>
-
-static Title* titleclass = NULL;
+
+#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);
 
-extern "C"
+class ImageItem: public QGraphicsItem
 {
-       void init_qt( const char* c )
-       {
-               titleclass=new Title( c );
-       }
+public:
+    ImageItem(QImage img)
+    {
+       m_img = img;
+    }
+    QImage m_img;
 
-       void close_qt()
-       {
-               delete titleclass;
-       }
-       
-       void refresh_kdenlivetitle( uint8_t* buffer, int width, int height , double position, char *templatexml, char *templatetext, int force_refresh )
-       {
-               if (force_refresh) titleclass->loadFromXml( templatexml, QString( templatetext ) );
-               titleclass->drawKdenliveTitle( buffer, width, height, position, templatexml, templatetext );
-       }
+
+protected:
+
+virtual QRectF boundingRect() const
+{
+    return QRectF(0, 0, m_img.width(), m_img.height());
+}
+
+virtual void paint( QPainter *painter,
+                       const QStyleOptionGraphicsItem * /*option*/,
+                       QWidget* )
+{ 
+    painter->setRenderHint(QPainter::SmoothPixmapTransform, true);
+    painter->drawImage(QPoint(), m_img);
 }
+};
 
 
-Title::Title( const char *filename ):m_filename( filename ), m_scene( NULL )
+QRectF stringToRect( const QString & s )
 {
+
+       QStringList l = s.split( ',' );
+       if ( l.size() < 4 )
+               return QRectF();
+       return QRectF( l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(), l.at( 3 ).toDouble() ).normalized();
 }
 
-Title::~Title()
+QColor stringToColor( const QString & s )
 {
-       if (m_scene) {
-           m_scene->clear();
-           delete m_scene;
-       }
+       QStringList l = s.split( ',' );
+       if ( l.size() < 4 )
+               return QColor();
+       return QColor( l.at( 0 ).toInt(), l.at( 1 ).toInt(), l.at( 2 ).toInt(), l.at( 3 ).toInt() );
+       ;
+}
+QTransform stringToTransform( const QString& s )
+{
+       QStringList l = s.split( ',' );
+       if ( l.size() < 9 )
+               return QTransform();
+       return QTransform(
+                  l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(),
+                  l.at( 3 ).toDouble(), l.at( 4 ).toDouble(), l.at( 5 ).toDouble(),
+                  l.at( 6 ).toDouble(), l.at( 7 ).toDouble(), l.at( 8 ).toDouble()
+              );
 }
 
-void Title::drawKdenliveTitle( uint8_t * buffer, int width, int height, double position, const char *templatexml, const char *templatetext )
+static void qscene_delete( void *data )
 {
-       if ( m_scene == NULL )
-       {
-               int argc = 1;
-               char* argv[1];
-               argv[0] = "xxx";
-               if (qApp) {
-                   app = qApp;
-               }
-               else {
-                   app=new QApplication( argc,argv );
-               }
-               m_scene = new QGraphicsScene(0, 0, (qreal) width, (qreal) height, app);
-               loadFromXml( templatexml, QString( templatetext ) );
-       }
-       //must be extracted from kdenlive title
-       QImage *img = new QImage( width,height,QImage::Format_ARGB32 );
-       img->fill( 0 );
-       QPainter p1;
-       p1.begin( img );
-       p1.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing );//|QPainter::SmoothPixmapTransform );
-       if (m_start.isNull() && m_end.isNull()) {
-           m_scene->render( &p1 );
-       }
-       else {
-           QPointF topleft=m_start.topLeft()+( m_end.topLeft()-m_start.topLeft() )*position;
-           QPointF bottomRight=m_start.bottomRight()+( m_end.bottomRight()-m_start.bottomRight() )*position;
-           const QRectF r1( 0, 0, width, height );
-           const QRectF r2( topleft, bottomRight );
-           m_scene->render( &p1, r1, r2 );
-       }
-       p1.end();
-       uint8_t *pointer=img->bits();
-       QRgb* src = ( QRgb* ) pointer;
-       for ( int i = 0; i < width * height * 4; i += 4 )
-       {
-               *buffer++=qRed( *src );
-               *buffer++=qGreen( *src );
-               *buffer++=qBlue( *src );
-               *buffer++=qAlpha( *src );
-               src++;
-       }
-       delete img;
+       QGraphicsScene *scene = ( QGraphicsScene * )data;
+       if (scene) delete scene;
+       scene = NULL;
 }
 
-void Title::loadFromXml( const char *templateXml, const QString templateText )
+
+void loadFromXml( mlt_producer producer, QGraphicsScene *scene, const char *templateXml, const char *templateText )
 {
-       if (m_scene == NULL) return;
-       m_scene->clear();
+       scene->clear();
+       mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
        QDomDocument doc;
-       QString data(templateXml);
+       QString data = QString::fromUtf8(templateXml);
+       QString replacementText = QString::fromUtf8(templateText);
        doc.setContent(data);
-       QDomNodeList titles = doc.elementsByTagName( "kdenlivetitle" );
-       int maxZValue = 0;
-       if ( titles.size() )
-       {
+       QDomElement title = doc.documentElement();
 
-               QDomNodeList items = titles.item( 0 ).childNodes();
-               for ( int i = 0; i < items.count(); i++ )
+       // Check for invalid title
+       if ( title.isNull() || title.tagName() != "kdenlivetitle" ) return;
+       
+       // 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;
+               node = items.item( i );
+               QDomNamedNodeMap nodeAttributes = node.attributes();
+               int zValue = nodeAttributes.namedItem( "z-index" ).nodeValue().toInt();
+               if ( zValue > -1000 )
                {
-                       QGraphicsItem *gitem = NULL;
-                       int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
-                       if ( zValue > -1000 )
+                       if ( nodeAttributes.namedItem( "type" ).nodeValue() == "QGraphicsTextItem" )
                        {
-                               if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsTextItem" )
+                               QDomNamedNodeMap txtProperties = node.namedItem( "content" ).attributes();
+                               QFont font( txtProperties.namedItem( "font" ).nodeValue() );
+                               QDomNode propsNode = txtProperties.namedItem( "font-bold" );
+                               if ( !propsNode.isNull() )
                                {
-                                       QDomNamedNodeMap txtProperties = items.item( i ).namedItem( "content" ).attributes();
-                                       QFont font( txtProperties.namedItem( "font" ).nodeValue() );
-
-                                       QDomNode node = txtProperties.namedItem( "font-bold" );
-                                       if ( !node.isNull() )
-                                       {
-                                               // Old: Bold/Not bold.
-                                               font.setBold( node.nodeValue().toInt() );
-                                       }
-                                       else
-                                       {
-                                               // New: Font weight (QFont::)
-                                               font.setWeight( txtProperties.namedItem( "font-weight" ).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.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() )
+                               {
+                                       QFont f2;
+                                       f2.setPointSize( txtProperties.namedItem( "font-size" ).nodeValue().toInt() );
+                                       font.setPixelSize( QFontInfo( f2 ).pixelSize() );
+                               }
+                               else
+                                       font.setPixelSize( txtProperties.namedItem( "font-pixel-size" ).nodeValue().toInt() );
+                               QColor col( stringToColor( txtProperties.namedItem( "font-color" ).nodeValue() ) );
+                               QString text = node.namedItem( "content" ).firstChild().nodeValue();
+                               if ( !replacementText.isEmpty() )
+                               {
+                                       text = text.replace( "%s", replacementText );
+                               }
+                               QGraphicsTextItem *txt = scene->addText(text, font);
+                               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));
 
-                                       //font.setBold(txtProperties.namedItem("font-bold").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() )
-                                       {
-                                               QFont f2;
-                                               f2.setPointSize( txtProperties.namedItem( "font-size" ).nodeValue().toInt() );
-                                               font.setPixelSize( QFontInfo( f2 ).pixelSize() );
-                                       }
-                                       else
-                                               font.setPixelSize( txtProperties.namedItem( "font-pixel-size" ).nodeValue().toInt() );
-                                       QColor col( stringToColor( txtProperties.namedItem( "font-color" ).nodeValue() ) );
-                                       QGraphicsTextItem *txt;
-                                       if ( !templateText.isEmpty() )
-                                       {
-                                               QString text = items.item( i ).namedItem( "content" ).firstChild().nodeValue();
-                                               text = text.replace( "%s", templateText );
-                                               txt = m_scene->addText( text, font );
-                                       }
-                                       else txt = m_scene->addText( items.item( i ).namedItem( "content" ).firstChild().nodeValue(), font );
+                                       cursor.mergeCharFormat(format);
+                               } else {
                                        txt->setDefaultTextColor( col );
-                                       txt->setTextInteractionFlags( Qt::NoTextInteraction );
-                                       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 );
-                                       }
-
-                                       if ( !txtProperties.namedItem( "kdenlive-axis-x-inverted" ).isNull() )
-                                       {
-                                               //txt->setData(OriginXLeft, txtProperties.namedItem("kdenlive-axis-x-inverted").nodeValue().toInt());
-                                       }
-                                       if ( !txtProperties.namedItem( "kdenlive-axis-y-inverted" ).isNull() )
-                                       {
-                                               //txt->setData(OriginYTop, txtProperties.namedItem("kdenlive-axis-y-inverted").nodeValue().toInt());
-                                       }
-
-                                       gitem = txt;
                                }
-                               else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsRectItem" )
+                               
+                               // 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 )
                                {
-                                       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 = m_scene->addRect( stringToRect( rect ), QPen( QBrush( stringToColor( pen_str ) ), penwidth ), QBrush( stringToColor( br_str ) ) );
-                                       gitem = rec;
+                                       txt->setTextWidth( txt->boundingRect().width() );
+                                       QTextOption opt = txt->document()->defaultTextOption ();
+                                       opt.setAlignment(( Qt::Alignment ) txtProperties.namedItem( "alignment" ).nodeValue().toInt() );
+                                       txt->document()->setDefaultTextOption (opt);
                                }
-                               else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsPixmapItem" )
+                                       if ( !txtProperties.namedItem( "kdenlive-axis-x-inverted" ).isNull() )
                                {
-                                       QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
-                                       QPixmap pix( url );
-                                       QGraphicsPixmapItem *rec = m_scene->addPixmap( pix );
-                                       rec->setData( Qt::UserRole, url );
-                                       gitem = rec;
+                                       //txt->setData(OriginXLeft, txtProperties.namedItem("kdenlive-axis-x-inverted").nodeValue().toInt());
                                }
-                               else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsSvgItem" )
+                               if ( !txtProperties.namedItem( "kdenlive-axis-y-inverted" ).isNull() )
                                {
-                                       QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
-                                       //QGraphicsSvgItem *rec = new QGraphicsSvgItem(url);
-                                       //m_scene->addItem(rec);
-                                       //rec->setData(Qt::UserRole, url);
-                                       //gitem = rec;
+                                       //txt->setData(OriginYTop, txtProperties.namedItem("kdenlive-axis-y-inverted").nodeValue().toInt());
                                }
+                                       gitem = txt;
                        }
-                       //pos and transform
-                       if ( gitem )
+                       else if ( nodeAttributes.namedItem( "type" ).nodeValue() == "QGraphicsRectItem" )
                        {
-                               QPointF p( items.item( i ).namedItem( "position" ).attributes().namedItem( "x" ).nodeValue().toDouble(),
-                                          items.item( i ).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();
-                               if ( zValue > maxZValue ) maxZValue = zValue;
-                               gitem->setZValue( zValue );
-                               //gitem->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
+                               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;
                        }
-                       if ( items.item( i ).nodeName() == "background" )
+                       else if ( nodeAttributes.namedItem( "type" ).nodeValue() == "QGraphicsPixmapItem" )
                        {
-                               QColor color = QColor( stringToColor( items.item( i ).attributes().namedItem( "color" ).nodeValue() ) );
-                               //color.setAlpha(items.item(i).attributes().namedItem("alpha").nodeValue().toInt());
-                               QList<QGraphicsItem *> items = m_scene->items();
-                               for ( int i = 0; i < items.size(); i++ )
-                               {
-                                       if ( items.at( i )->zValue() == -1100 )
-                                       {
-                                               (( QGraphicsRectItem * )items.at( i ) )->setBrush( QBrush( color ) );
-                                               break;
-                                       }
+                               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 ).nodeName() == "startviewport" )
+                       else if ( nodeAttributes.namedItem( "type" ).nodeValue() == "QGraphicsSvgItem" )
                        {
-                               QString rect = items.item( i ).attributes().namedItem( "rect" ).nodeValue();
-                               m_start = stringToRect( rect );
+                               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;
+                               }
                        }
-                       else if ( items.item( i ).nodeName() == "endviewport" )
-                       {
-                               QString rect = items.item( i ).attributes().namedItem( "rect" ).nodeValue();
-                               m_end = stringToRect( rect );
+               }
+               //pos and transform
+               if ( gitem )
+               {
+                       QPointF p( node.namedItem( "position" ).attributes().namedItem( "x" ).nodeValue().toDouble(),
+                                  node.namedItem( "position" ).attributes().namedItem( "y" ).nodeValue().toDouble() );
+                       gitem->setPos( p );
+                       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 = title.firstChildElement("background");
+       if (!n.isNull()) {
+               QColor color = QColor( stringToColor( n.attributes().namedItem( "color" ).nodeValue() ) );
+                if (color.alpha() > 0) {
+                        QGraphicsRectItem *rec = scene->addRect(0, 0, scene->width(), scene->height() , QPen( Qt::NoPen ), QBrush( color ) );
+                        rec->setZValue(-1100);
+                }
+         
+       }
+
+       QString startRect;
+       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 = 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)
+                       mlt_properties_set( producer_props, "_endrect", rect.toUtf8().data() );
+       }
+       if (!startRect.isEmpty()) {
+               mlt_properties_set( producer_props, "_startrect", startRect.toUtf8().data() );
+       }
        return;
 }
 
-QString Title::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 Title::rectFToString( const QRectF& c )
+void drawKdenliveTitle( producer_ktitle self, mlt_frame frame, int width, int height, double position, int force_refresh )
 {
-       QString ret = "%1,%2,%3,%4";
-       ret = ret.arg( c.top() ).arg( c.left() ).arg( c.width() ).arg( c.height() );
-       return ret;
-}
+       // 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 );
 
-QRectF Title::stringToRect( const QString & s )
-{
+       // Obtain properties of frame
+       mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
+        
+        pthread_mutex_lock( &self->mutex );
+       
+       // Check if user wants us to reload the image
+       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;
+               mlt_properties_set_data( producer_props, "cached_image", NULL, 0, NULL, NULL );
+               mlt_properties_set_int( producer_props, "force_reload", 0 );
+       }
+       
+       if (self->current_image == NULL) {
+               // restore QGraphicsScene
+               QGraphicsScene *scene = static_cast<QGraphicsScene *> (mlt_properties_get_data( producer_props, "qscene", NULL ));
 
-       QStringList l = s.split( ',' );
-       if ( l.size() < 4 )
-               return QRectF();
-       return QRectF( l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(), l.at( 3 ).toDouble() ).normalized();
-}
+               if ( force_refresh == 1 && scene )
+               {
+                       scene = NULL;
+                       mlt_properties_set_data( producer_props, "qscene", NULL, 0, NULL, NULL );
+               }
 
-QColor Title::stringToColor( const QString & s )
-{
-       QStringList l = s.split( ',' );
-       if ( l.size() < 4 )
-               return QColor();
-       return QColor( l.at( 0 ).toInt(), l.at( 1 ).toInt(), l.at( 2 ).toInt(), l.at( 3 ).toInt() );
-       ;
-}
-QTransform Title::stringToTransform( const QString& s )
-{
-       QStringList l = s.split( ',' );
-       if ( l.size() < 9 )
-               return QTransform();
-       return QTransform(
-                  l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(),
-                  l.at( 3 ).toDouble(), l.at( 4 ).toDouble(), l.at( 5 ).toDouble(),
-                  l.at( 6 ).toDouble(), l.at( 7 ).toDouble(), l.at( 8 ).toDouble()
-              );
+               if ( scene == NULL )
+               {
+                       int argc = 1;
+                       char* argv[1];
+                       argv[0] = (char*) "xxx";
+                       
+                       // 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();
+                       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 );
+               }
+                
+                QRectF start = stringToRect( QString( mlt_properties_get( producer_props, "_startrect" ) ) );
+                QRectF end = stringToRect( QString( mlt_properties_get( producer_props, "_endrect" ) ) );
+       
+               int originalWidth = mlt_properties_get_int( producer_props, "_original_width" );
+               int originalHeight= mlt_properties_get_int( producer_props, "_original_height" );
+               const QRectF source( 0, 0, width, height );
+               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 );
+               QPainter p1;
+               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 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();
+
+               int size = width * height * 4;
+               uint8_t *pointer=img.bits();
+               QRgb* src = ( QRgb* ) pointer;
+               self->current_image = ( uint8_t * )mlt_pool_alloc( size );
+               uint8_t *dst = self->current_image;
+       
+               for ( int i = 0; i < width * height * 4; i += 4 )
+               {
+                       *dst++=qRed( *src );
+                       *dst++=qGreen( *src );
+                       *dst++=qBlue( *src );
+                       *dst++=qAlpha( *src );
+                       src++;
+               }
+
+               mlt_properties_set_data( producer_props, "cached_image", self->current_image, size, mlt_pool_release, NULL );
+               self->current_width = width;
+               self->current_height = height;
+       }
+
+       pthread_mutex_unlock( &self->mutex );
+       mlt_properties_set_int( properties, "width", self->current_width );
+       mlt_properties_set_int( properties, "height", self->current_height );
 }
+
+