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 <QtSvg/QGraphicsSvgItem>
31 #include <QtSvg/QSvgRenderer>
32 #include <QtGui/QTextCursor>
33 #include <QtGui/QTextDocument>
34 #include <QtGui/QStyleOptionGraphicsItem>
36 #include <QtCore/QString>
38 #include <QtXml/QDomElement>
39 #include <QtCore/QRectF>
40 #include <QtGui/QColor>
41 #include <QtGui/QWidget>
42 #include <framework/mlt_log.h>
44 #if QT_VERSION >= 0x040600
45 #include <QtGui/QGraphicsEffect>
46 #include <QtGui/QGraphicsBlurEffect>
47 #include <QtGui/QGraphicsDropShadowEffect>
50 static QApplication *app = NULL;
52 class ImageItem: public QGraphicsItem
64 virtual QRectF boundingRect() const
66 return QRectF(0, 0, m_img.width(), m_img.height());
69 virtual void paint( QPainter *painter,
70 const QStyleOptionGraphicsItem * /*option*/,
73 painter->setRenderHint(QPainter::SmoothPixmapTransform, true);
74 painter->drawImage(QPoint(), m_img);
79 QString rectTransform( QString s, QTransform t )
81 QStringList l = s.split( ',' );
82 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());
85 QString colorToString( const QColor& c )
87 QString ret = "%1,%2,%3,%4";
88 ret = ret.arg( c.red() ).arg( c.green() ).arg( c.blue() ).arg( c.alpha() );
92 QString rectFToString( const QRectF& c )
94 QString ret = "%1,%2,%3,%4";
95 ret = ret.arg( c.top() ).arg( c.left() ).arg( c.width() ).arg( c.height() );
99 QRectF stringToRect( const QString & s )
102 QStringList l = s.split( ',' );
105 return QRectF( l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(), l.at( 3 ).toDouble() ).normalized();
108 QColor stringToColor( const QString & s )
110 QStringList l = s.split( ',' );
113 return QColor( l.at( 0 ).toInt(), l.at( 1 ).toInt(), l.at( 2 ).toInt(), l.at( 3 ).toInt() );
116 QTransform stringToTransform( const QString& s )
118 QStringList l = s.split( ',' );
122 l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(),
123 l.at( 3 ).toDouble(), l.at( 4 ).toDouble(), l.at( 5 ).toDouble(),
124 l.at( 6 ).toDouble(), l.at( 7 ).toDouble(), l.at( 8 ).toDouble()
128 static void qscene_delete( void *data )
130 QGraphicsScene *scene = ( QGraphicsScene * )data;
131 if (scene) delete scene;
136 void loadFromXml( mlt_producer producer, QGraphicsScene *scene, const char *templateXml, const char *templateText )
139 mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
141 QString data = QString::fromUtf8(templateXml);
142 QString replacementText = QString::fromUtf8(templateText);
143 doc.setContent(data);
144 QDomElement title = doc.documentElement();
146 // Check for invalid title
147 if ( title.isNull() || title.tagName() != "kdenlivetitle" ) return;
151 if ( title.hasAttribute("width") ) {
152 originalWidth = title.attribute("width").toInt();
153 originalHeight = title.attribute("height").toInt();
154 scene->setSceneRect(0, 0, originalWidth, originalHeight);
157 originalWidth = scene->sceneRect().width();
158 originalHeight = scene->sceneRect().height();
160 if ( title.hasAttribute( "out" ) ) {
161 mlt_properties_set_position( producer_props, "_animation_out", title.attribute( "out" ).toDouble() );
164 mlt_properties_set_position( producer_props, "_animation_out", mlt_producer_get_out( producer ) );
167 mlt_properties_set_int( producer_props, "_original_width", originalWidth );
168 mlt_properties_set_int( producer_props, "_original_height", originalHeight );
170 QDomNodeList items = title.elementsByTagName("item");
171 for ( int i = 0; i < items.count(); i++ )
173 QGraphicsItem *gitem = NULL;
174 int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
175 if ( zValue > -1000 )
177 if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsTextItem" )
179 QDomNamedNodeMap txtProperties = items.item( i ).namedItem( "content" ).attributes();
180 QFont font( txtProperties.namedItem( "font" ).nodeValue() );
181 QDomNode node = txtProperties.namedItem( "font-bold" );
182 if ( !node.isNull() )
184 // Old: Bold/Not bold.
185 font.setBold( node.nodeValue().toInt() );
189 // New: Font weight (QFont::)
190 font.setWeight( txtProperties.namedItem( "font-weight" ).nodeValue().toInt() );
192 font.setItalic( txtProperties.namedItem( "font-italic" ).nodeValue().toInt() );
193 font.setUnderline( txtProperties.namedItem( "font-underline" ).nodeValue().toInt() );
194 // Older Kdenlive version did not store pixel size but point size
195 if ( txtProperties.namedItem( "font-pixel-size" ).isNull() )
198 f2.setPointSize( txtProperties.namedItem( "font-size" ).nodeValue().toInt() );
199 font.setPixelSize( QFontInfo( f2 ).pixelSize() );
202 font.setPixelSize( txtProperties.namedItem( "font-pixel-size" ).nodeValue().toInt() );
203 QColor col( stringToColor( txtProperties.namedItem( "font-color" ).nodeValue() ) );
204 QString text = items.item( i ).namedItem( "content" ).firstChild().nodeValue();
205 if ( !replacementText.isEmpty() )
207 text = text.replace( "%s", replacementText );
209 QGraphicsTextItem *txt = scene->addText(text, font);
210 if (txtProperties.namedItem("font-outline").nodeValue().toDouble()>0.0){
211 QTextCursor cursor(txt->document());
212 cursor.select(QTextCursor::Document);
213 QTextCharFormat format;
214 format.setTextOutline(
215 QPen(QColor( stringToColor( txtProperties.namedItem( "font-outline-color" ).nodeValue() ) ),
216 txtProperties.namedItem("font-outline").nodeValue().toDouble(),
217 Qt::SolidLine,Qt::RoundCap,Qt::RoundJoin)
219 format.setForeground(QBrush(col));
221 cursor.mergeCharFormat(format);
223 txt->setDefaultTextColor( col );
227 if (!txtProperties.namedItem( "typewriter" ).isNull()) {
229 mlt_properties_set_int( producer_props, "_animated", 1 );
230 QStringList effetData = QStringList() << "typewriter" << text << txtProperties.namedItem( "typewriter" ).nodeValue();
231 txt->setData(0, effetData);
234 if ( txtProperties.namedItem( "alignment" ).isNull() == false )
236 txt->setTextWidth( txt->boundingRect().width() );
237 QTextOption opt = txt->document()->defaultTextOption ();
238 opt.setAlignment(( Qt::Alignment ) txtProperties.namedItem( "alignment" ).nodeValue().toInt() );
239 txt->document()->setDefaultTextOption (opt);
241 if ( !txtProperties.namedItem( "kdenlive-axis-x-inverted" ).isNull() )
243 //txt->setData(OriginXLeft, txtProperties.namedItem("kdenlive-axis-x-inverted").nodeValue().toInt());
245 if ( !txtProperties.namedItem( "kdenlive-axis-y-inverted" ).isNull() )
247 //txt->setData(OriginYTop, txtProperties.namedItem("kdenlive-axis-y-inverted").nodeValue().toInt());
251 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsRectItem" )
253 QString rect = items.item( i ).namedItem( "content" ).attributes().namedItem( "rect" ).nodeValue();
254 QString br_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "brushcolor" ).nodeValue();
255 QString pen_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "pencolor" ).nodeValue();
256 double penwidth = items.item( i ).namedItem( "content" ).attributes().namedItem( "penwidth") .nodeValue().toDouble();
257 QGraphicsRectItem *rec = scene->addRect( stringToRect( rect ), QPen( QBrush( stringToColor( pen_str ) ), penwidth, Qt::SolidLine, Qt::SquareCap, Qt::RoundJoin ), QBrush( stringToColor( br_str ) ) );
260 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsPixmapItem" )
262 const QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
263 const QString base64 = items.item(i).namedItem("content").attributes().namedItem("base64").nodeValue();
265 if (base64.isEmpty()){
268 img.loadFromData(QByteArray::fromBase64(base64.toAscii()));
270 ImageItem *rec = new ImageItem(img);
271 scene->addItem( rec );
274 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsSvgItem" )
276 QString url = items.item(i).namedItem("content").attributes().namedItem("url").nodeValue();
277 QString base64 = items.item(i).namedItem("content").attributes().namedItem("base64").nodeValue();
278 QGraphicsSvgItem *rec = NULL;
279 if (base64.isEmpty()){
280 rec = new QGraphicsSvgItem(url);
282 rec = new QGraphicsSvgItem();
283 QSvgRenderer *renderer= new QSvgRenderer(QByteArray::fromBase64(base64.toAscii()), rec );
284 rec->setSharedRenderer(renderer);
295 QPointF p( items.item( i ).namedItem( "position" ).attributes().namedItem( "x" ).nodeValue().toDouble(),
296 items.item( i ).namedItem( "position" ).attributes().namedItem( "y" ).nodeValue().toDouble() );
298 gitem->setTransform( stringToTransform( items.item( i ).namedItem( "position" ).firstChild().firstChild().nodeValue() ) );
299 int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
300 gitem->setZValue( zValue );
302 #if QT_VERSION >= 0x040600
304 QDomNode eff = items.item(i).namedItem("effect");
306 QDomElement e = eff.toElement();
307 if (e.attribute("type") == "blur") {
308 QGraphicsBlurEffect *blur = new QGraphicsBlurEffect();
309 blur->setBlurRadius(e.attribute("blurradius").toInt());
310 gitem->setGraphicsEffect(blur);
312 else if (e.attribute("type") == "shadow") {
313 QGraphicsDropShadowEffect *shadow = new QGraphicsDropShadowEffect();
314 shadow->setBlurRadius(e.attribute("blurradius").toInt());
315 shadow->setOffset(e.attribute("xoffset").toInt(), e.attribute("yoffset").toInt());
316 gitem->setGraphicsEffect(shadow);
323 QDomNode n = title.firstChildElement("background");
325 QColor color = QColor( stringToColor( n.attributes().namedItem( "color" ).nodeValue() ) );
326 if (color.alpha() > 0) {
327 QGraphicsRectItem *rec = scene->addRect(0, 0, scene->width(), scene->height() , QPen( Qt::NoPen ), QBrush( color ) );
328 rec->setZValue(-1100);
334 n = title.firstChildElement( "startviewport" );
335 // Check if node exists, if it has an x attribute, it is an old version title, don't use viewport
336 if (!n.isNull() && !n.toElement().hasAttribute("x"))
338 startRect = n.attributes().namedItem( "rect" ).nodeValue();
340 n = title.firstChildElement( "endviewport" );
341 // Check if node exists, if it has an x attribute, it is an old version title, don't use viewport
342 if (!n.isNull() && !n.toElement().hasAttribute("x"))
344 QString rect = n.attributes().namedItem( "rect" ).nodeValue();
345 if (startRect != rect)
346 mlt_properties_set( producer_props, "_endrect", rect.toUtf8().data() );
348 if (!startRect.isEmpty()) {
349 mlt_properties_set( producer_props, "_startrect", startRect.toUtf8().data() );
355 void drawKdenliveTitle( producer_ktitle self, mlt_frame frame, int width, int height, double position, int force_refresh )
357 // Obtain the producer
358 mlt_producer producer = &self->parent;
359 mlt_profile profile = mlt_service_profile ( MLT_PRODUCER_SERVICE( producer ) ) ;
360 mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
362 // Obtain properties of frame
363 mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
365 pthread_mutex_lock( &self->mutex );
367 // Check if user wants us to reload the image
368 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 )
370 //mlt_cache_item_close( self->image_cache );
371 self->current_image = NULL;
372 mlt_properties_set_data( producer_props, "cached_image", NULL, 0, NULL, NULL );
373 mlt_properties_set_int( producer_props, "force_reload", 0 );
376 if (self->current_image == NULL) {
377 // restore QGraphicsScene
378 QGraphicsScene *scene = static_cast<QGraphicsScene *> (mlt_properties_get_data( producer_props, "qscene", NULL ));
380 if ( force_refresh == 1 && scene )
383 mlt_properties_set_data( producer_props, "qscene", NULL, 0, NULL, NULL );
390 argv[0] = (char*) "xxx";
392 // Warning: all Qt graphic objects (QRect, ...) must be initialized AFTER
393 // the QApplication is created, otherwise their will be NULL
401 if ( getenv("DISPLAY") == 0 )
403 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" );
404 pthread_mutex_unlock( &self->mutex );
409 app = new QApplication( argc, argv );
410 //fix to let the decimal point for every locale be: "."
411 setlocale(LC_NUMERIC,"POSIX");
414 scene = new QGraphicsScene();
415 scene->setItemIndexMethod( QGraphicsScene::NoIndex );
416 scene->setSceneRect(0, 0, mlt_properties_get_int( properties, "width" ), mlt_properties_get_int( properties, "height" ));
417 loadFromXml( producer, scene, mlt_properties_get( producer_props, "xmldata" ), mlt_properties_get( producer_props, "templatetext" ) );
418 mlt_properties_set_data( producer_props, "qscene", scene, 0, ( mlt_destructor )qscene_delete, NULL );
421 QRectF start = stringToRect( QString( mlt_properties_get( producer_props, "_startrect" ) ) );
422 QRectF end = stringToRect( QString( mlt_properties_get( producer_props, "_endrect" ) ) );
424 int originalWidth = mlt_properties_get_int( producer_props, "_original_width" );
425 int originalHeight= mlt_properties_get_int( producer_props, "_original_height" );
426 const QRectF source( 0, 0, width, height );
427 if (start.isNull()) {
428 start = QRectF( 0, 0, originalWidth, originalHeight );
432 QList <QGraphicsItem *> items = scene->items();
433 QGraphicsTextItem *titem = NULL;
434 for (int i = 0; i < items.count(); i++) {
435 titem = static_cast <QGraphicsTextItem*> ( items.at( i ) );
436 if (titem && !titem->data( 0 ).isNull()) {
437 QStringList params = titem->data( 0 ).toStringList();
438 if (params.at( 0 ) == "typewriter" ) {
439 // typewriter effect has 2 param values:
440 // the keystroke delay and a start offset, both in frames
441 QStringList values = params.at( 2 ).split( ";" );
442 int interval = qMax( 0, ( ( int ) position - values.at( 1 ).toInt()) / values.at( 0 ).toInt() );
443 QTextDocument *td = new QTextDocument( params.at( 1 ).left( interval ) );
444 td->setDefaultFont( titem->font() );
445 td->setDefaultTextOption( titem->document()->defaultTextOption() );
446 td->setTextWidth( titem->document()->textWidth() );
447 titem->setDocument( td );
452 //must be extracted from kdenlive title
453 QImage img( width, height, QImage::Format_ARGB32 );
457 p1.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing );
458 //| QPainter::SmoothPixmapTransform );
459 mlt_position anim_out = mlt_properties_get_position( producer_props, "_animation_out" );
463 scene->render( &p1, source, start, Qt::IgnoreAspectRatio );
465 else if ( position > anim_out ) {
466 scene->render( &p1, source, end, Qt::IgnoreAspectRatio );
469 double percentage = position / anim_out;
470 QPointF topleft = start.topLeft() + ( end.topLeft() - start.topLeft() ) * percentage;
471 QPointF bottomRight = start.bottomRight() + ( end.bottomRight() - start.bottomRight() ) * percentage;
472 const QRectF r1( topleft, bottomRight );
473 scene->render( &p1, source, r1, Qt::IgnoreAspectRatio );
474 if ( profile && !profile->progressive ){
476 double percentage_next_filed = ( position + 0.5 ) / anim_out;
477 QPointF topleft_next_field = start.topLeft() + ( end.topLeft() - start.topLeft() ) * percentage_next_filed;
478 QPointF bottomRight_next_field = start.bottomRight() + ( end.bottomRight() - start.bottomRight() ) * percentage_next_filed;
479 const QRectF r2( topleft_next_field, bottomRight_next_field );
480 QImage img1( width, height, QImage::Format_ARGB32 );
484 p2.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing );
485 scene->render(&p2,source,r2, Qt::IgnoreAspectRatio );
487 int next_field_line = ( mlt_properties_get_int( producer_props, "top_field_first" ) ? 1 : 0 );
488 for (line = next_field_line ;line<height;line+=2){
489 memcpy(img.scanLine(line),img1.scanLine(line),img.bytesPerLine());
496 int size = width * height * 4;
497 uint8_t *pointer=img.bits();
498 QRgb* src = ( QRgb* ) pointer;
499 self->current_image = ( uint8_t * )mlt_pool_alloc( size );
500 uint8_t *dst = self->current_image;
502 for ( int i = 0; i < width * height * 4; i += 4 )
505 *dst++=qGreen( *src );
506 *dst++=qBlue( *src );
507 *dst++=qAlpha( *src );
511 mlt_properties_set_data( producer_props, "cached_image", self->current_image, size, mlt_pool_release, NULL );
512 self->current_width = width;
513 self->current_height = height;
516 pthread_mutex_unlock( &self->mutex );
517 mlt_properties_set_int( properties, "width", self->current_width );
518 mlt_properties_set_int( properties, "height", self->current_height );