2 * kdenlivetitle_wrapper.cpp -- kdenlivetitle wrapper
3 * Copyright (c) 2009 Marco Gittler <g.marco@freenet.de>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <QtGui/QImage>
21 #include <QtGui/QPainter>
22 #include <QtCore/QCoreApplication>
23 #include <QtGui/QApplication>
24 #include <QtCore/QDebug>
25 #include <QtCore/QFile>
26 #include <QtGui/QGraphicsView>
27 #include <QtGui/QGraphicsScene>
28 #include <QtGui/QGraphicsTextItem>
29 #include <QtGui/QGraphicsPolygonItem>
30 #include <QtGui/QTextCursor>
31 #include "kdenlivetitle_wrapper.h"
32 #include <framework/mlt_producer.h>
34 static Title* titleclass;
35 static QApplication *app;
39 void init_qt( const char* c )
41 titleclass=new Title( QString( c ) );
43 void refresh_kdenlivetitle( uint8_t* buffer, int width, int height , double position, char *templatexml, char *templatetext )
45 titleclass->drawKdenliveTitle( buffer, width, height, position, templatexml, templatetext );
48 Title::Title( const QString& filename ):m_filename( filename ),m_scene( NULL )
50 //must be extracted from kdenlive title
51 start =new QGraphicsPolygonItem( QPolygonF( QRectF( 100, 100, 600, 600 ) ) );
53 end=new QGraphicsPolygonItem( QPolygonF( QRectF( 0, 0, 300, 300 ) ) );
56 void Title::drawKdenliveTitle( uint8_t * buffer, int width, int height, double position, char *templatexml, char *templatetext )
63 if ( ! QApplication::activeWindow() )
65 app=new QApplication( argc,argv );
66 m_scene=new QGraphicsScene;
67 loadDocument( m_filename, start, end, QString(templatexml), QString(templatetext) );
69 //must be extracted from kdenlive title
71 QImage *img=new QImage( width,height,QImage::Format_ARGB32 );
73 QRectF rstart=start->boundingRect();
74 QRectF rend=end->boundingRect();
75 QPointF topleft=rstart.topLeft()+( rend.topLeft()-rstart.topLeft() )*position;
76 QPointF bottomRight=rstart.bottomRight()+( rend.bottomRight()-rstart.bottomRight() )*position;
79 p1.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing );//|QPainter::SmoothPixmapTransform );
80 m_scene->render( &p1,QRect( 0,0,width,height ),QRectF( topleft,bottomRight ) );
82 uint8_t *pointer=img->bits();
83 QRgb* src = ( QRgb* ) pointer;
84 for ( int i=0;i<width*height*4;i+=4 )
86 *buffer++=qRed( *src );
87 *buffer++=qGreen( *src );
88 *buffer++=qBlue( *src );
89 *buffer++=qAlpha( *src );
94 int Title::loadDocument( const QString& url, QGraphicsPolygonItem* startv, QGraphicsPolygonItem* endv, const QString templateXml, const QString templateText )
99 if (!templateXml.isEmpty()) {
100 doc.setContent(templateXml);
104 if ( file.open( QIODevice::ReadOnly ) )
106 doc.setContent( &file, false );
110 return loadFromXml( doc, startv, endv, templateText );
113 int Title::loadFromXml( QDomDocument doc, QGraphicsPolygonItem* startv, QGraphicsPolygonItem* endv, const QString templateText )
115 QDomNodeList titles = doc.elementsByTagName( "kdenlivetitle" );
120 QDomNodeList items = titles.item( 0 ).childNodes();
121 for ( int i = 0; i < items.count(); i++ )
123 QGraphicsItem *gitem = NULL;
124 int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
125 if ( zValue > -1000 )
127 if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsTextItem" )
129 QDomNamedNodeMap txtProperties = items.item( i ).namedItem( "content" ).attributes();
130 QFont font( txtProperties.namedItem( "font" ).nodeValue() );
131 font.setBold( txtProperties.namedItem( "font-bold" ).nodeValue().toInt() );
132 font.setItalic( txtProperties.namedItem( "font-italic" ).nodeValue().toInt() );
133 font.setUnderline( txtProperties.namedItem( "font-underline" ).nodeValue().toInt() );
134 // Older Kdenlive version did not store pixel size but point size
135 if ( txtProperties.namedItem( "font-pixel-size" ).isNull() )
138 f2.setPointSize( txtProperties.namedItem( "font-size" ).nodeValue().toInt() );
139 font.setPixelSize( QFontInfo( f2 ).pixelSize() );
142 font.setPixelSize( txtProperties.namedItem( "font-pixel-size" ).nodeValue().toInt() );
143 QColor col( stringToColor( txtProperties.namedItem( "font-color" ).nodeValue() ) );
144 QGraphicsTextItem *txt;
145 if (!templateText.isEmpty()) {
146 QString text = items.item(i).namedItem("content").firstChild().nodeValue();
147 text = text.replace("%s", templateText);
148 txt = m_scene->addText(text, font);
150 else txt = m_scene->addText( items.item( i ).namedItem( "content" ).firstChild().nodeValue(), font );
151 txt->setDefaultTextColor( col );
152 txt->setTextInteractionFlags( Qt::NoTextInteraction );
153 if ( txtProperties.namedItem( "alignment" ).isNull() == false )
155 txt->setTextWidth( txt->boundingRect().width() );
156 QTextCursor cur = txt->textCursor();
157 QTextBlockFormat format = cur.blockFormat();
158 format.setAlignment(( Qt::Alignment ) txtProperties.namedItem( "alignment" ).nodeValue().toInt() );
159 cur.select( QTextCursor::Document );
160 cur.setBlockFormat( format );
161 txt->setTextCursor( cur );
162 cur.clearSelection();
163 txt->setTextCursor( cur );
166 if ( !txtProperties.namedItem( "kdenlive-axis-x-inverted" ).isNull() )
168 //txt->setData(OriginXLeft, txtProperties.namedItem("kdenlive-axis-x-inverted").nodeValue().toInt());
170 if ( !txtProperties.namedItem( "kdenlive-axis-y-inverted" ).isNull() )
172 //txt->setData(OriginYTop, txtProperties.namedItem("kdenlive-axis-y-inverted").nodeValue().toInt());
177 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsRectItem" )
179 QString rect = items.item( i ).namedItem( "content" ).attributes().namedItem( "rect" ).nodeValue();
180 QString br_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "brushcolor" ).nodeValue();
181 QString pen_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "pencolor" ).nodeValue();
182 double penwidth = items.item( i ).namedItem( "content" ).attributes().namedItem( "penwidth" ).nodeValue().toDouble();
183 QGraphicsRectItem *rec = m_scene->addRect( stringToRect( rect ), QPen( QBrush( stringToColor( pen_str ) ), penwidth ), QBrush( stringToColor( br_str ) ) );
186 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsPixmapItem" )
188 QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
190 QGraphicsPixmapItem *rec = m_scene->addPixmap( pix );
191 rec->setData( Qt::UserRole, url );
194 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsSvgItem" )
196 QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
197 //QGraphicsSvgItem *rec = new QGraphicsSvgItem(url);
198 //m_scene->addItem(rec);
199 //rec->setData(Qt::UserRole, url);
206 QPointF p( items.item( i ).namedItem( "position" ).attributes().namedItem( "x" ).nodeValue().toDouble(),
207 items.item( i ).namedItem( "position" ).attributes().namedItem( "y" ).nodeValue().toDouble() );
209 gitem->setTransform( stringToTransform( items.item( i ).namedItem( "position" ).firstChild().firstChild().nodeValue() ) );
210 int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
211 if ( zValue > maxZValue ) maxZValue = zValue;
212 gitem->setZValue( zValue );
213 //gitem->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
215 if ( items.item( i ).nodeName() == "background" )
217 QColor color = QColor( stringToColor( items.item( i ).attributes().namedItem( "color" ).nodeValue() ) );
218 //color.setAlpha(items.item(i).attributes().namedItem("alpha").nodeValue().toInt());
219 QList<QGraphicsItem *> items = m_scene->items();
220 for ( int i = 0; i < items.size(); i++ )
222 if ( items.at( i )->zValue() == -1100 )
224 (( QGraphicsRectItem * )items.at( i ) )->setBrush( QBrush( color ) );
229 else if ( items.item( i ).nodeName() == "startviewport" && startv )
231 QString rect = items.item( i ).attributes().namedItem( "rect" ).nodeValue();
232 startv->setPolygon( stringToRect( rect ) );
234 else if ( items.item( i ).nodeName() == "endviewport" && endv )
236 QString rect = items.item( i ).attributes().namedItem( "rect" ).nodeValue();
237 endv->setPolygon( stringToRect( rect ) );
244 QString Title::colorToString( const QColor& c )
246 QString ret = "%1,%2,%3,%4";
247 ret = ret.arg( c.red() ).arg( c.green() ).arg( c.blue() ).arg( c.alpha() );
251 QString Title::rectFToString( const QRectF& c )
253 QString ret = "%1,%2,%3,%4";
254 ret = ret.arg( c.top() ).arg( c.left() ).arg( c.width() ).arg( c.height() );
258 QRectF Title::stringToRect( const QString & s )
261 QStringList l = s.split( ',' );
264 return QRectF( l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(), l.at( 3 ).toDouble() ).normalized();
267 QColor Title::stringToColor( const QString & s )
269 QStringList l = s.split( ',' );
272 return QColor( l.at( 0 ).toInt(), l.at( 1 ).toInt(), l.at( 2 ).toInt(), l.at( 3 ).toInt() );
275 QTransform Title::stringToTransform( const QString& s )
277 QStringList l = s.split( ',' );
281 l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(),
282 l.at( 3 ).toDouble(), l.at( 4 ).toDouble(), l.at( 5 ).toDouble(),
283 l.at( 6 ).toDouble(), l.at( 7 ).toDouble(), l.at( 8 ).toDouble()