git.sesse.net Git - mlt/blob - src/modules/qimage/kdenlivetitle_wrapper.cpp

   1 /*
   2  * kdenlivetitle_wrapper.cpp -- kdenlivetitle wrapper
   3  * Copyright (c) 2009 Marco Gittler <g.marco@freenet.de>
   4  *
   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.
   9  *
  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.
  14  *
  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
  18  */
  19
  20 #include "kdenlivetitle_wrapper.h"
  21 #include <framework/mlt_producer.h>
  22
  23 #include <QtGui/QImage>
  24 #include <QtGui/QPainter>
  25 <<<<<<< HEAD:src/modules/qimage/kdenlivetitle_wrapper.cpp
  26 #include <QtCore/QCoreApplication>
  27 =======
  28 #include <QtCore/QDebug>
  29 >>>>>>> jbm/kdenlivetitle:src/modules/qimage/kdenlivetitle_wrapper.cpp
  30 #include <QtGui/QApplication>
  31 #include <QtCore/QFile>
  32 #include <QtGui/QGraphicsScene>
  33 #include <QtGui/QGraphicsTextItem>
  34 #include <QtGui/QTextCursor>
  35
  36 static Title* titleclass = NULL;
  37 static QApplication *app = NULL;
  38
  39 extern "C"
  40 {
  41         void init_qt( const char* c )
  42         {
  43                 titleclass=new Title( c );
  44         }
  45
  46         void close_qt()
  47         {
  48                 delete titleclass;
  49         }
  50
  51         void refresh_kdenlivetitle( uint8_t* buffer, int width, int height , double position, char *templatexml, char *templatetext, int force_refresh )
  52         {
  53                 if (force_refresh) titleclass->loadFromXml( templatexml, QString( templatetext ) );
  54                 titleclass->drawKdenliveTitle( buffer, width, height, position, templatexml, templatetext );
  55         }
  56 }
  57
  58
  59 Title::Title( const char *filename ):m_filename( filename ), m_scene( NULL )
  60 {
  61 }
  62
  63 Title::~Title()
  64 {
  65         if (m_scene) {
  66             m_scene->clear();
  67             delete m_scene;
  68         }
  69 }
  70
  71 void Title::drawKdenliveTitle( uint8_t * buffer, int width, int height, double position, const char *templatexml, const char *templatetext )
  72 {
  73         if ( m_scene == NULL )
  74         {
  75                 int argc = 1;
  76                 char* argv[1];
  77                 argv[0] = "xxx";
  78                 if (qApp) {
  79                     app = qApp;
  80                 }
  81                 else {
  82                     app=new QApplication( argc,argv );
  83                 }
  84                 m_scene = new QGraphicsScene(0, 0, (qreal) width, (qreal) height, app);
  85                 loadFromXml( templatexml, QString( templatetext ) );
  86         }
  87         //must be extracted from kdenlive title
  88         QImage *img = new QImage( width,height,QImage::Format_ARGB32 );
  89         img->fill( 0 );
  90         QPainter p1;
  91         p1.begin( img );
  92         p1.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing );//|QPainter::SmoothPixmapTransform );
  93         if (m_start.isNull() && m_end.isNull()) {
  94             m_scene->render( &p1 );
  95         }
  96         else {
  97             QPointF topleft=m_start.topLeft()+( m_end.topLeft()-m_start.topLeft() )*position;
  98             QPointF bottomRight=m_start.bottomRight()+( m_end.bottomRight()-m_start.bottomRight() )*position;
  99             const QRectF r1( 0, 0, width, height );
 100             const QRectF r2( topleft, bottomRight );
 101             m_scene->render( &p1, r1, r2 );
 102         }
 103         p1.end();
 104         uint8_t *pointer=img->bits();
 105         QRgb* src = ( QRgb* ) pointer;
 106         for ( int i = 0; i < width * height * 4; i += 4 )
 107         {
 108                 *buffer++=qRed( *src );
 109                 *buffer++=qGreen( *src );
 110                 *buffer++=qBlue( *src );
 111                 *buffer++=qAlpha( *src );
 112                 src++;
 113         }
 114         delete img;
 115 }
 116
 117 void Title::loadFromXml( const char *templateXml, const QString templateText )
 118 {
 119         if (m_scene == NULL) return;
 120         m_scene->clear();
 121         QDomDocument doc;
 122         QString data(templateXml);
 123         doc.setContent(data);
 124         QDomNodeList titles = doc.elementsByTagName( "kdenlivetitle" );
 125         int maxZValue = 0;
 126         if ( titles.size() )
 127         {
 128
 129                 QDomNodeList items = titles.item( 0 ).childNodes();
 130                 for ( int i = 0; i < items.count(); i++ )
 131                 {
 132                         QGraphicsItem *gitem = NULL;
 133                         int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
 134                         if ( zValue > -1000 )
 135                         {
 136                                 if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsTextItem" )
 137                                 {
 138                                         QDomNamedNodeMap txtProperties = items.item( i ).namedItem( "content" ).attributes();
 139                                         QFont font( txtProperties.namedItem( "font" ).nodeValue() );
 140
 141                                         QDomNode node = txtProperties.namedItem( "font-bold" );
 142                                         if ( !node.isNull() )
 143                                         {
 144                                                 // Old: Bold/Not bold.
 145                                                 font.setBold( node.nodeValue().toInt() );
 146                                         }
 147                                         else
 148                                         {
 149                                                 // New: Font weight (QFont::)
 150                                                 font.setWeight( txtProperties.namedItem( "font-weight" ).nodeValue().toInt() );
 151                                         }
 152
 153                                         //font.setBold(txtProperties.namedItem("font-bold").nodeValue().toInt());
 154                                         font.setItalic( txtProperties.namedItem( "font-italic" ).nodeValue().toInt() );
 155                                         font.setUnderline( txtProperties.namedItem( "font-underline" ).nodeValue().toInt() );
 156                                         // Older Kdenlive version did not store pixel size but point size
 157                                         if ( txtProperties.namedItem( "font-pixel-size" ).isNull() )
 158                                         {
 159                                                 QFont f2;
 160                                                 f2.setPointSize( txtProperties.namedItem( "font-size" ).nodeValue().toInt() );
 161                                                 font.setPixelSize( QFontInfo( f2 ).pixelSize() );
 162                                         }
 163                                         else
 164                                                 font.setPixelSize( txtProperties.namedItem( "font-pixel-size" ).nodeValue().toInt() );
 165                                         QColor col( stringToColor( txtProperties.namedItem( "font-color" ).nodeValue() ) );
 166                                         QGraphicsTextItem *txt;
 167                                         if ( !templateText.isEmpty() )
 168                                         {
 169                                                 QString text = items.item( i ).namedItem( "content" ).firstChild().nodeValue();
 170                                                 text = text.replace( "%s", templateText );
 171                                                 txt = m_scene->addText( text, font );
 172                                         }
 173                                         else txt = m_scene->addText( items.item( i ).namedItem( "content" ).firstChild().nodeValue(), font );
 174                                         txt->setDefaultTextColor( col );
 175                                         txt->setTextInteractionFlags( Qt::NoTextInteraction );
 176                                         if ( txtProperties.namedItem( "alignment" ).isNull() == false )
 177                                         {
 178                                                 txt->setTextWidth( txt->boundingRect().width() );
 179                                                 QTextCursor cur = txt->textCursor();
 180                                                 QTextBlockFormat format = cur.blockFormat();
 181                                                 format.setAlignment(( Qt::Alignment ) txtProperties.namedItem( "alignment" ).nodeValue().toInt() );
 182                                                 cur.select( QTextCursor::Document );
 183                                                 cur.setBlockFormat( format );
 184                                                 txt->setTextCursor( cur );
 185                                                 cur.clearSelection();
 186                                                 txt->setTextCursor( cur );
 187                                         }
 188
 189                                         if ( !txtProperties.namedItem( "kdenlive-axis-x-inverted" ).isNull() )
 190                                         {
 191                                                 //txt->setData(OriginXLeft, txtProperties.namedItem("kdenlive-axis-x-inverted").nodeValue().toInt());
 192                                         }
 193                                         if ( !txtProperties.namedItem( "kdenlive-axis-y-inverted" ).isNull() )
 194                                         {
 195                                                 //txt->setData(OriginYTop, txtProperties.namedItem("kdenlive-axis-y-inverted").nodeValue().toInt());
 196                                         }
 197
 198                                         gitem = txt;
 199                                 }
 200                                 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsRectItem" )
 201                                 {
 202                                         QString rect = items.item( i ).namedItem( "content" ).attributes().namedItem( "rect" ).nodeValue();
 203                                         QString br_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "brushcolor" ).nodeValue();
 204                                         QString pen_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "pencolor" ).nodeValue();
 205                                         double penwidth = items.item( i ).namedItem( "content" ).attributes().namedItem( "penwidth" ).nodeValue().toDouble();
 206                                         QGraphicsRectItem *rec = m_scene->addRect( stringToRect( rect ), QPen( QBrush( stringToColor( pen_str ) ), penwidth ), QBrush( stringToColor( br_str ) ) );
 207                                         gitem = rec;
 208                                 }
 209                                 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsPixmapItem" )
 210                                 {
 211                                         QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
 212                                         QPixmap pix( url );
 213                                         QGraphicsPixmapItem *rec = m_scene->addPixmap( pix );
 214                                         rec->setData( Qt::UserRole, url );
 215                                         gitem = rec;
 216                                 }
 217                                 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsSvgItem" )
 218                                 {
 219                                         QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
 220                                         //QGraphicsSvgItem *rec = new QGraphicsSvgItem(url);
 221                                         //m_scene->addItem(rec);
 222                                         //rec->setData(Qt::UserRole, url);
 223                                         //gitem = rec;
 224                                 }
 225                         }
 226                         //pos and transform
 227                         if ( gitem )
 228                         {
 229                                 QPointF p( items.item( i ).namedItem( "position" ).attributes().namedItem( "x" ).nodeValue().toDouble(),
 230                                            items.item( i ).namedItem( "position" ).attributes().namedItem( "y" ).nodeValue().toDouble() );
 231                                 gitem->setPos( p );
 232                                 gitem->setTransform( stringToTransform( items.item( i ).namedItem( "position" ).firstChild().firstChild().nodeValue() ) );
 233                                 int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
 234                                 if ( zValue > maxZValue ) maxZValue = zValue;
 235                                 gitem->setZValue( zValue );
 236                                 //gitem->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
 237                         }
 238                         if ( items.item( i ).nodeName() == "background" )
 239                         {
 240                                 QColor color = QColor( stringToColor( items.item( i ).attributes().namedItem( "color" ).nodeValue() ) );
 241                                 //color.setAlpha(items.item(i).attributes().namedItem("alpha").nodeValue().toInt());
 242                                 QList<QGraphicsItem *> items = m_scene->items();
 243                                 for ( int i = 0; i < items.size(); i++ )
 244                                 {
 245                                         if ( items.at( i )->zValue() == -1100 )
 246                                         {
 247                                                 (( QGraphicsRectItem * )items.at( i ) )->setBrush( QBrush( color ) );
 248                                                 break;
 249                                         }
 250                                 }
 251                         }
 252                         else if ( items.item( i ).nodeName() == "startviewport" )
 253                         {
 254                                 QString rect = items.item( i ).attributes().namedItem( "rect" ).nodeValue();
 255                                 m_start = stringToRect( rect );
 256                         }
 257                         else if ( items.item( i ).nodeName() == "endviewport" )
 258                         {
 259                                 QString rect = items.item( i ).attributes().namedItem( "rect" ).nodeValue();
 260                                 m_end = stringToRect( rect );
 261                         }
 262                 }
 263         }
 264         return;
 265 }
 266
 267 QString Title::colorToString( const QColor& c )
 268 {
 269         QString ret = "%1,%2,%3,%4";
 270         ret = ret.arg( c.red() ).arg( c.green() ).arg( c.blue() ).arg( c.alpha() );
 271         return ret;
 272 }
 273
 274 QString Title::rectFToString( const QRectF& c )
 275 {
 276         QString ret = "%1,%2,%3,%4";
 277         ret = ret.arg( c.top() ).arg( c.left() ).arg( c.width() ).arg( c.height() );
 278         return ret;
 279 }
 280
 281 QRectF Title::stringToRect( const QString & s )
 282 {
 283
 284         QStringList l = s.split( ',' );
 285         if ( l.size() < 4 )
 286                 return QRectF();
 287         return QRectF( l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(), l.at( 3 ).toDouble() ).normalized();
 288 }
 289
 290 QColor Title::stringToColor( const QString & s )
 291 {
 292         QStringList l = s.split( ',' );
 293         if ( l.size() < 4 )
 294                 return QColor();
 295         return QColor( l.at( 0 ).toInt(), l.at( 1 ).toInt(), l.at( 2 ).toInt(), l.at( 3 ).toInt() );
 296         ;
 297 }
 298 QTransform Title::stringToTransform( const QString& s )
 299 {
 300         QStringList l = s.split( ',' );
 301         if ( l.size() < 9 )
 302                 return QTransform();
 303         return QTransform(
 304                    l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(),
 305                    l.at( 3 ).toDouble(), l.at( 4 ).toDouble(), l.at( 5 ).toDouble(),
 306                    l.at( 6 ).toDouble(), l.at( 7 ).toDouble(), l.at( 8 ).toDouble()
 307                );
 308 }