2 * kdenlivetitle_wrapper.cpp -- kdenlivetitle wrapper
3 * Copyright (c) 2009 Marco Gittler <g.marco@freenet.de>
4 * Copyright (c) 2009 Jean-Baptiste Mardelle <jb@kdenlive.org>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #include "kdenlivetitle_wrapper.h"
23 #include <QtGui/QImage>
24 #include <QtGui/QPainter>
25 #include <QtCore/QDebug>
26 #include <QtGui/QApplication>
27 #include <QtCore/QMutex>
28 #include <QtGui/QGraphicsScene>
29 #include <QtGui/QGraphicsTextItem>
30 #include <QtGui/QTextCursor>
31 #include <QtGui/QStyleOptionGraphicsItem>
33 static QApplication *app = NULL;
38 #include <framework/mlt_producer.h>
39 #include <framework/mlt_cache.h>
41 static QMutex g_mutex;
42 void refresh_kdenlivetitle( mlt_producer producer, uint8_t* buffer, int width, int height , double position, int force_refresh )
44 drawKdenliveTitle( producer, buffer, width, height, position, force_refresh );
47 static void qscene_delete( void *data )
49 QGraphicsScene *scene = ( QGraphicsScene * )data;
56 class ImageItem: public QGraphicsRectItem
67 virtual void paint( QPainter *painter,
68 const QStyleOptionGraphicsItem *option,
72 painter->drawImage(QPointF(), m_img);
73 //painter->fillRect(option->exposedRect, QBrush(QColor(0,255,0)));
80 void drawKdenliveTitle( mlt_producer producer, uint8_t * buffer, int width, int height, double position, int force_refresh )
83 // restore QGraphicsScene
85 mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
86 QGraphicsScene *scene = static_cast<QGraphicsScene *> (mlt_properties_get_data( producer_props, "qscene", NULL ));
88 if ( force_refresh == 1 && scene )
91 mlt_properties_set_data( producer_props, "qscene", NULL, 0, NULL, NULL );
103 app=new QApplication( argc,argv );
105 scene = new QGraphicsScene( 0, 0, width, height, app );
106 loadFromXml( producer, scene, mlt_properties_get( producer_props, "xmldata" ), mlt_properties_get( producer_props, "templatetext" ), width, height );
107 mlt_properties_set_data( producer_props, "qscene", scene, 0, ( mlt_destructor )qscene_delete, NULL );
112 //must be extracted from kdenlive title
113 QImage img( width, height, QImage::Format_ARGB32 );
117 p1.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing );
118 //| QPainter::SmoothPixmapTransform );
120 const QRectF start = stringToRect( QString( mlt_properties_get( producer_props, "startrect" ) ) );
121 const QRectF end = stringToRect( QString( mlt_properties_get( producer_props, "endrect" ) ) );
122 const QRectF source( 0, 0, width, height );
126 scene->render( &p1, source, source );
128 scene->render( &p1, start, source );
131 QPointF topleft = start.topLeft() + ( end.topLeft() - start.topLeft() ) * position;
132 QPointF bottomRight = start.bottomRight() + ( end.bottomRight() - start.bottomRight() ) * position;
133 const QRectF r1( topleft, bottomRight );
134 scene->render( &p1, r1, source );
137 uint8_t *pointer=img.bits();
138 QRgb* src = ( QRgb* ) pointer;
139 for ( int i = 0; i < width * height * 4; i += 4 )
141 *buffer++=qRed( *src );
142 *buffer++=qGreen( *src );
143 *buffer++=qBlue( *src );
144 *buffer++=qAlpha( *src );
149 void loadFromXml( mlt_producer producer, QGraphicsScene *scene, const char *templateXml, const char *templateText, int width, int height )
152 mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
154 QString data = QString::fromUtf8(templateXml);
155 QString replacementText = QString::fromUtf8(templateText);
156 doc.setContent(data);
157 QDomNodeList titles = doc.elementsByTagName( "kdenlivetitle" );
158 QTransform transform;
159 if ( doc.documentElement().hasAttribute("width") ) {
160 int originalWidth = doc.documentElement().attribute("width").toInt();
161 int originalHeight = doc.documentElement().attribute("height").toInt();
162 if (originalWidth != width || originalHeight != height) {
163 #if QT_VERSION < 0x40500
164 transform = QTransform().scale( (double) width / originalWidth, (double) height / originalHeight );
166 transform = QTransform::fromScale ( (double) width / originalWidth, (double) height / originalHeight);
173 QDomNodeList items = titles.item( 0 ).childNodes();
174 for ( int i = 0; i < items.count(); i++ )
176 QGraphicsItem *gitem = NULL;
177 int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
178 if ( zValue > -1000 )
180 if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsTextItem" )
182 QDomNamedNodeMap txtProperties = items.item( i ).namedItem( "content" ).attributes();
183 QFont font( txtProperties.namedItem( "font" ).nodeValue() );
185 QDomNode node = txtProperties.namedItem( "font-bold" );
186 if ( !node.isNull() )
188 // Old: Bold/Not bold.
189 font.setBold( node.nodeValue().toInt() );
193 // New: Font weight (QFont::)
194 font.setWeight( txtProperties.namedItem( "font-weight" ).nodeValue().toInt() );
197 //font.setBold(txtProperties.namedItem("font-bold").nodeValue().toInt());
198 font.setItalic( txtProperties.namedItem( "font-italic" ).nodeValue().toInt() );
199 font.setUnderline( txtProperties.namedItem( "font-underline" ).nodeValue().toInt() );
200 // Older Kdenlive version did not store pixel size but point size
201 if ( txtProperties.namedItem( "font-pixel-size" ).isNull() )
204 f2.setPointSize( txtProperties.namedItem( "font-size" ).nodeValue().toInt() );
205 font.setPixelSize( QFontInfo( f2 ).pixelSize() );
208 font.setPixelSize( txtProperties.namedItem( "font-pixel-size" ).nodeValue().toInt() );
209 QColor col( stringToColor( txtProperties.namedItem( "font-color" ).nodeValue() ) );
210 QGraphicsTextItem *txt;
211 if ( !replacementText.isEmpty() )
213 QString text = items.item( i ).namedItem( "content" ).firstChild().nodeValue();
214 text = text.replace( "%s", replacementText );
215 txt = scene->addText( text, font );
217 else txt = scene->addText( items.item( i ).namedItem( "content" ).firstChild().nodeValue(), font );
218 txt->setDefaultTextColor( col );
219 txt->setTextInteractionFlags( Qt::NoTextInteraction );
220 if ( txtProperties.namedItem( "alignment" ).isNull() == false )
222 txt->setTextWidth( txt->boundingRect().width() );
223 QTextCursor cur = txt->textCursor();
224 QTextBlockFormat format = cur.blockFormat();
225 format.setAlignment(( Qt::Alignment ) txtProperties.namedItem( "alignment" ).nodeValue().toInt() );
226 cur.select( QTextCursor::Document );
227 cur.setBlockFormat( format );
228 txt->setTextCursor( cur );
229 cur.clearSelection();
230 txt->setTextCursor( cur );
233 if ( !txtProperties.namedItem( "kdenlive-axis-x-inverted" ).isNull() )
235 //txt->setData(OriginXLeft, txtProperties.namedItem("kdenlive-axis-x-inverted").nodeValue().toInt());
237 if ( !txtProperties.namedItem( "kdenlive-axis-y-inverted" ).isNull() )
239 //txt->setData(OriginYTop, txtProperties.namedItem("kdenlive-axis-y-inverted").nodeValue().toInt());
244 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsRectItem" )
246 QString rect = items.item( i ).namedItem( "content" ).attributes().namedItem( "rect" ).nodeValue();
247 QString br_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "brushcolor" ).nodeValue();
248 QString pen_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "pencolor" ).nodeValue();
249 double penwidth = items.item( i ).namedItem( "content" ).attributes().namedItem( "penwidth" ).nodeValue().toDouble();
250 QGraphicsRectItem *rec = scene->addRect( stringToRect( rect ), QPen( QBrush( stringToColor( pen_str ) ), penwidth ), QBrush( stringToColor( br_str ) ) );
253 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsPixmapItem" )
255 QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
257 ImageItem *rec = new ImageItem(img);
258 scene->addItem( rec );
259 rec->setData( Qt::UserRole, url );
262 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsSvgItem" )
264 QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
265 //QGraphicsSvgItem *rec = new QGraphicsSvgItem(url);
266 //m_scene->addItem(rec);
267 //rec->setData(Qt::UserRole, url);
274 QPointF p( items.item( i ).namedItem( "position" ).attributes().namedItem( "x" ).nodeValue().toDouble(),
275 items.item( i ).namedItem( "position" ).attributes().namedItem( "y" ).nodeValue().toDouble() );
276 if ( transform != QTransform() ) p = QPointF(p.x() * transform.m11(), p.y() * transform.m22());
278 gitem->setTransform( stringToTransform( items.item( i ).namedItem( "position" ).firstChild().firstChild().nodeValue() ) );
279 int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
280 gitem->setZValue( zValue );
281 if ( transform != QTransform() ) gitem->setTransform( transform, true );
282 //gitem->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
284 if ( items.item( i ).nodeName() == "background" )
286 QColor color = QColor( stringToColor( items.item( i ).attributes().namedItem( "color" ).nodeValue() ) );
287 //color.setAlpha(items.item(i).attributes().namedItem("alpha").nodeValue().toInt());
288 QList<QGraphicsItem *> items = scene->items();
289 for ( int i = 0; i < items.size(); i++ )
291 if ( items.at( i )->zValue() == -1100 )
293 (( QGraphicsRectItem * )items.at( i ) )->setBrush( QBrush( color ) );
298 else if ( items.item( i ).nodeName() == "startviewport" )
300 QString rect = items.item( i ).attributes().namedItem( "rect" ).nodeValue();
301 if ( transform != QTransform() ) {
302 rect = rectTransform( rect, transform );
304 mlt_properties_set( producer_props, "startrect", rect.toUtf8().data() );
306 else if ( items.item( i ).nodeName() == "endviewport" )
308 QString rect = items.item( i ).attributes().namedItem( "rect" ).nodeValue();
309 if ( transform != QTransform() ) {
310 rect = rectTransform( rect, transform );
312 mlt_properties_set( producer_props, "endrect", rect.toUtf8().data() );
316 if ( mlt_properties_get( producer_props, "startrect") == mlt_properties_get( producer_props, "endrect") )
317 mlt_properties_set( producer_props, "endrect", "" );
321 QString rectTransform( QString s, QTransform t )
323 QStringList l = s.split( ',' );
324 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());
327 QString colorToString( const QColor& c )
329 QString ret = "%1,%2,%3,%4";
330 ret = ret.arg( c.red() ).arg( c.green() ).arg( c.blue() ).arg( c.alpha() );
334 QString rectFToString( const QRectF& c )
336 QString ret = "%1,%2,%3,%4";
337 ret = ret.arg( c.top() ).arg( c.left() ).arg( c.width() ).arg( c.height() );
341 QRectF stringToRect( const QString & s )
344 QStringList l = s.split( ',' );
347 return QRectF( l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(), l.at( 3 ).toDouble() ).normalized();
350 QColor stringToColor( const QString & s )
352 QStringList l = s.split( ',' );
355 return QColor( l.at( 0 ).toInt(), l.at( 1 ).toInt(), l.at( 2 ).toInt(), l.at( 3 ).toInt() );
358 QTransform stringToTransform( const QString& s )
360 QStringList l = s.split( ',' );
364 l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(),
365 l.at( 3 ).toDouble(), l.at( 4 ).toDouble(), l.at( 5 ).toDouble(),
366 l.at( 6 ).toDouble(), l.at( 7 ).toDouble(), l.at( 8 ).toDouble()