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 <QtGui/QTextCursor>
32 #include <QtGui/QTextDocument>
33 #include <QtGui/QStyleOptionGraphicsItem>
35 #include <QtCore/QString>
37 #include <QtXml/QDomElement>
38 #include <QtCore/QRectF>
39 #include <QtGui/QColor>
40 #include <QtGui/QWidget>
41 #include <framework/mlt_log.h>
43 #if QT_VERSION >= 0x040600
44 #include <QtGui/QGraphicsEffect>
45 #include <QtGui/QGraphicsBlurEffect>
46 #include <QtGui/QGraphicsDropShadowEffect>
49 static QApplication *app = NULL;
51 class ImageItem: public QGraphicsItem
63 virtual QRectF boundingRect() const
65 return QRectF(0, 0, m_img.width(), m_img.height());
68 virtual void paint( QPainter *painter,
69 const QStyleOptionGraphicsItem * /*option*/,
72 painter->setRenderHint(QPainter::SmoothPixmapTransform, true);
73 painter->drawImage(QPoint(), m_img);
78 QString rectTransform( QString s, QTransform t )
80 QStringList l = s.split( ',' );
81 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());
84 QString colorToString( const QColor& c )
86 QString ret = "%1,%2,%3,%4";
87 ret = ret.arg( c.red() ).arg( c.green() ).arg( c.blue() ).arg( c.alpha() );
91 QString rectFToString( const QRectF& c )
93 QString ret = "%1,%2,%3,%4";
94 ret = ret.arg( c.top() ).arg( c.left() ).arg( c.width() ).arg( c.height() );
98 QRectF stringToRect( const QString & s )
101 QStringList l = s.split( ',' );
104 return QRectF( l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(), l.at( 3 ).toDouble() ).normalized();
107 QColor stringToColor( const QString & s )
109 QStringList l = s.split( ',' );
112 return QColor( l.at( 0 ).toInt(), l.at( 1 ).toInt(), l.at( 2 ).toInt(), l.at( 3 ).toInt() );
115 QTransform stringToTransform( const QString& s )
117 QStringList l = s.split( ',' );
121 l.at( 0 ).toDouble(), l.at( 1 ).toDouble(), l.at( 2 ).toDouble(),
122 l.at( 3 ).toDouble(), l.at( 4 ).toDouble(), l.at( 5 ).toDouble(),
123 l.at( 6 ).toDouble(), l.at( 7 ).toDouble(), l.at( 8 ).toDouble()
127 static void qscene_delete( void *data )
129 QGraphicsScene *scene = ( QGraphicsScene * )data;
130 if (scene) delete scene;
135 void loadFromXml( mlt_producer producer, QGraphicsScene *scene, const char *templateXml, const char *templateText )
138 mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
140 QString data = QString::fromUtf8(templateXml);
141 QString replacementText = QString::fromUtf8(templateText);
142 doc.setContent(data);
143 QDomElement title = doc.documentElement();
145 // Check for invalid title
146 if ( title.isNull() || title.tagName() != "kdenlivetitle" ) return;
150 if ( title.hasAttribute("width") ) {
151 originalWidth = title.attribute("width").toInt();
152 originalHeight = title.attribute("height").toInt();
153 scene->setSceneRect(0, 0, originalWidth, originalHeight);
156 originalWidth = scene->sceneRect().width();
157 originalHeight = scene->sceneRect().height();
159 if ( title.hasAttribute( "out" ) ) {
160 mlt_properties_set_position( producer_props, "_animation_out", title.attribute( "out" ).toDouble() );
163 mlt_properties_set_position( producer_props, "_animation_out", mlt_producer_get_out( producer ) );
166 mlt_properties_set_int( producer_props, "_original_width", originalWidth );
167 mlt_properties_set_int( producer_props, "_original_height", originalHeight );
169 QDomNodeList items = title.elementsByTagName("item");
170 for ( int i = 0; i < items.count(); i++ )
172 QGraphicsItem *gitem = NULL;
173 int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
174 if ( zValue > -1000 )
176 if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsTextItem" )
178 QDomNamedNodeMap txtProperties = items.item( i ).namedItem( "content" ).attributes();
179 QFont font( txtProperties.namedItem( "font" ).nodeValue() );
180 QDomNode node = txtProperties.namedItem( "font-bold" );
181 if ( !node.isNull() )
183 // Old: Bold/Not bold.
184 font.setBold( node.nodeValue().toInt() );
188 // New: Font weight (QFont::)
189 font.setWeight( txtProperties.namedItem( "font-weight" ).nodeValue().toInt() );
191 font.setItalic( txtProperties.namedItem( "font-italic" ).nodeValue().toInt() );
192 font.setUnderline( txtProperties.namedItem( "font-underline" ).nodeValue().toInt() );
193 // Older Kdenlive version did not store pixel size but point size
194 if ( txtProperties.namedItem( "font-pixel-size" ).isNull() )
197 f2.setPointSize( txtProperties.namedItem( "font-size" ).nodeValue().toInt() );
198 font.setPixelSize( QFontInfo( f2 ).pixelSize() );
201 font.setPixelSize( txtProperties.namedItem( "font-pixel-size" ).nodeValue().toInt() );
202 QColor col( stringToColor( txtProperties.namedItem( "font-color" ).nodeValue() ) );
203 QString text = items.item( i ).namedItem( "content" ).firstChild().nodeValue();
204 if ( !replacementText.isEmpty() )
206 text = text.replace( "%s", replacementText );
208 QGraphicsTextItem *txt = scene->addText(text, font);
209 if (txtProperties.namedItem("font-outline").nodeValue().toDouble()>0.0){
210 QTextCursor cursor(txt->document());
211 cursor.select(QTextCursor::Document);
212 QTextCharFormat format;
213 format.setTextOutline(
214 QPen(QColor( stringToColor( txtProperties.namedItem( "font-outline-color" ).nodeValue() ) ),
215 txtProperties.namedItem("font-outline").nodeValue().toDouble(),
216 Qt::SolidLine,Qt::RoundCap,Qt::RoundJoin)
218 format.setForeground(QBrush(col));
220 cursor.mergeCharFormat(format);
222 txt->setDefaultTextColor( col );
226 if (!txtProperties.namedItem( "typewriter" ).isNull()) {
228 mlt_properties_set_int( producer_props, "_animated", 1 );
229 QStringList effetData = QStringList() << "typewriter" << text << txtProperties.namedItem( "typewriter" ).nodeValue();
230 txt->setData(0, effetData);
233 if ( txtProperties.namedItem( "alignment" ).isNull() == false )
235 txt->setTextWidth( txt->boundingRect().width() );
236 QTextOption opt = txt->document()->defaultTextOption ();
237 opt.setAlignment(( Qt::Alignment ) txtProperties.namedItem( "alignment" ).nodeValue().toInt() );
238 txt->document()->setDefaultTextOption (opt);
240 if ( !txtProperties.namedItem( "kdenlive-axis-x-inverted" ).isNull() )
242 //txt->setData(OriginXLeft, txtProperties.namedItem("kdenlive-axis-x-inverted").nodeValue().toInt());
244 if ( !txtProperties.namedItem( "kdenlive-axis-y-inverted" ).isNull() )
246 //txt->setData(OriginYTop, txtProperties.namedItem("kdenlive-axis-y-inverted").nodeValue().toInt());
250 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsRectItem" )
252 QString rect = items.item( i ).namedItem( "content" ).attributes().namedItem( "rect" ).nodeValue();
253 QString br_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "brushcolor" ).nodeValue();
254 QString pen_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "pencolor" ).nodeValue();
255 double penwidth = items.item( i ).namedItem( "content" ).attributes().namedItem( "penwidth") .nodeValue().toDouble();
256 QGraphicsRectItem *rec = scene->addRect( stringToRect( rect ), QPen( QBrush( stringToColor( pen_str ) ), penwidth, Qt::SolidLine, Qt::SquareCap, Qt::RoundJoin ), QBrush( stringToColor( br_str ) ) );
259 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsPixmapItem" )
261 const QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
263 ImageItem *rec = new ImageItem(img);
264 scene->addItem( rec );
267 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsSvgItem" )
269 const QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
270 QGraphicsSvgItem *rec = new QGraphicsSvgItem(url);
278 QPointF p( items.item( i ).namedItem( "position" ).attributes().namedItem( "x" ).nodeValue().toDouble(),
279 items.item( i ).namedItem( "position" ).attributes().namedItem( "y" ).nodeValue().toDouble() );
281 gitem->setTransform( stringToTransform( items.item( i ).namedItem( "position" ).firstChild().firstChild().nodeValue() ) );
282 int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
283 gitem->setZValue( zValue );
285 #if QT_VERSION >= 0x040600
287 QDomNode eff = items.item(i).namedItem("effect");
289 QDomElement e = eff.toElement();
290 if (e.attribute("type") == "blur") {
291 QGraphicsBlurEffect *blur = new QGraphicsBlurEffect();
292 blur->setBlurRadius(e.attribute("blurradius").toInt());
293 gitem->setGraphicsEffect(blur);
295 else if (e.attribute("type") == "shadow") {
296 QGraphicsDropShadowEffect *shadow = new QGraphicsDropShadowEffect();
297 shadow->setBlurRadius(e.attribute("blurradius").toInt());
298 shadow->setOffset(e.attribute("xoffset").toInt(), e.attribute("yoffset").toInt());
299 gitem->setGraphicsEffect(shadow);
306 QDomNode n = title.firstChildElement("background");
308 QColor color = QColor( stringToColor( n.attributes().namedItem( "color" ).nodeValue() ) );
309 if (color.alpha() > 0) {
310 QGraphicsRectItem *rec = scene->addRect(0, 0, scene->width(), scene->height() , QPen( Qt::NoPen ), QBrush( color ) );
311 rec->setZValue(-1100);
317 n = title.firstChildElement( "startviewport" );
318 // Check if node exists, if it has an x attribute, it is an old version title, don't use viewport
319 if (!n.isNull() && !n.toElement().hasAttribute("x"))
321 startRect = n.attributes().namedItem( "rect" ).nodeValue();
323 n = title.firstChildElement( "endviewport" );
324 // Check if node exists, if it has an x attribute, it is an old version title, don't use viewport
325 if (!n.isNull() && !n.toElement().hasAttribute("x"))
327 QString rect = n.attributes().namedItem( "rect" ).nodeValue();
328 if (startRect != rect)
329 mlt_properties_set( producer_props, "_endrect", rect.toUtf8().data() );
331 if (!startRect.isEmpty()) {
332 mlt_properties_set( producer_props, "_startrect", startRect.toUtf8().data() );
338 void drawKdenliveTitle( producer_ktitle self, mlt_frame frame, int width, int height, double position, int force_refresh )
340 // Obtain the producer
341 mlt_producer producer = &self->parent;
342 mlt_profile profile = mlt_service_profile ( MLT_PRODUCER_SERVICE( producer ) ) ;
343 mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
345 // Obtain properties of frame
346 mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
348 pthread_mutex_lock( &self->mutex );
350 // Check if user wants us to reload the image
351 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 )
353 //mlt_cache_item_close( self->image_cache );
354 self->current_image = NULL;
355 mlt_properties_set_data( producer_props, "cached_image", NULL, 0, NULL, NULL );
356 mlt_properties_set_int( producer_props, "force_reload", 0 );
359 if (self->current_image == NULL) {
360 // restore QGraphicsScene
361 QGraphicsScene *scene = static_cast<QGraphicsScene *> (mlt_properties_get_data( producer_props, "qscene", NULL ));
363 if ( force_refresh == 1 && scene )
366 mlt_properties_set_data( producer_props, "qscene", NULL, 0, NULL, NULL );
373 argv[0] = (char*) "xxx";
375 // Warning: all Qt graphic objects (QRect, ...) must be initialized AFTER
376 // the QApplication is created, otherwise their will be NULL
384 if ( getenv("DISPLAY") == 0 )
386 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" );
387 pthread_mutex_unlock( &self->mutex );
392 app = new QApplication( argc, argv );
393 //fix to let the decimal point for every locale be: "."
394 setlocale(LC_NUMERIC,"POSIX");
397 scene = new QGraphicsScene();
398 scene->setItemIndexMethod( QGraphicsScene::NoIndex );
399 scene->setSceneRect(0, 0, mlt_properties_get_int( properties, "width" ), mlt_properties_get_int( properties, "height" ));
400 loadFromXml( producer, scene, mlt_properties_get( producer_props, "xmldata" ), mlt_properties_get( producer_props, "templatetext" ) );
401 mlt_properties_set_data( producer_props, "qscene", scene, 0, ( mlt_destructor )qscene_delete, NULL );
404 QRectF start = stringToRect( QString( mlt_properties_get( producer_props, "_startrect" ) ) );
405 QRectF end = stringToRect( QString( mlt_properties_get( producer_props, "_endrect" ) ) );
407 int originalWidth = mlt_properties_get_int( producer_props, "_original_width" );
408 int originalHeight= mlt_properties_get_int( producer_props, "_original_height" );
409 const QRectF source( 0, 0, width, height );
410 if (start.isNull()) {
411 start = QRectF( 0, 0, originalWidth, originalHeight );
415 QList <QGraphicsItem *> items = scene->items();
416 QGraphicsTextItem *titem = NULL;
417 for (int i = 0; i < items.count(); i++) {
418 titem = static_cast <QGraphicsTextItem*> ( items.at( i ) );
419 if (titem && !titem->data( 0 ).isNull()) {
420 QStringList params = titem->data( 0 ).toStringList();
421 if (params.at( 0 ) == "typewriter" ) {
422 // typewriter effect has 2 param values:
423 // the keystroke delay and a start offset, both in frames
424 QStringList values = params.at( 2 ).split( ";" );
425 int interval = qMax( 0, ( ( int ) position - values.at( 1 ).toInt()) / values.at( 0 ).toInt() );
426 QTextDocument *td = new QTextDocument( params.at( 1 ).left( interval ) );
427 td->setDefaultFont( titem->font() );
428 td->setDefaultTextOption( titem->document()->defaultTextOption() );
429 td->setTextWidth( titem->document()->textWidth() );
430 titem->setDocument( td );
435 //must be extracted from kdenlive title
436 QImage img( width, height, QImage::Format_ARGB32 );
440 p1.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing );
441 //| QPainter::SmoothPixmapTransform );
442 mlt_position anim_out = mlt_properties_get_position( producer_props, "_animation_out" );
446 scene->render( &p1, source, start, Qt::IgnoreAspectRatio );
448 else if ( position > anim_out ) {
449 scene->render( &p1, source, end, Qt::IgnoreAspectRatio );
452 double percentage = position / anim_out;
453 QPointF topleft = start.topLeft() + ( end.topLeft() - start.topLeft() ) * percentage;
454 QPointF bottomRight = start.bottomRight() + ( end.bottomRight() - start.bottomRight() ) * percentage;
455 const QRectF r1( topleft, bottomRight );
456 scene->render( &p1, source, r1, Qt::IgnoreAspectRatio );
457 if ( profile && !profile->progressive ){
459 double percentage_next_filed = ( position + 0.5 ) / anim_out;
460 QPointF topleft_next_field = start.topLeft() + ( end.topLeft() - start.topLeft() ) * percentage_next_filed;
461 QPointF bottomRight_next_field = start.bottomRight() + ( end.bottomRight() - start.bottomRight() ) * percentage_next_filed;
462 const QRectF r2( topleft_next_field, bottomRight_next_field );
463 QImage img1( width, height, QImage::Format_ARGB32 );
467 p2.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing );
468 scene->render(&p2,source,r2, Qt::IgnoreAspectRatio );
470 int next_field_line = ( mlt_properties_get_int( producer_props, "top_field_first" ) ? 1 : 0 );
471 for (line = next_field_line ;line<height;line+=2){
472 memcpy(img.scanLine(line),img1.scanLine(line),img.bytesPerLine());
479 int size = width * height * 4;
480 uint8_t *pointer=img.bits();
481 QRgb* src = ( QRgb* ) pointer;
482 self->current_image = ( uint8_t * )mlt_pool_alloc( size );
483 uint8_t *dst = self->current_image;
485 for ( int i = 0; i < width * height * 4; i += 4 )
488 *dst++=qGreen( *src );
489 *dst++=qBlue( *src );
490 *dst++=qAlpha( *src );
494 mlt_properties_set_data( producer_props, "cached_image", self->current_image, size, mlt_pool_release, NULL );
495 self->current_width = width;
496 self->current_height = height;
499 pthread_mutex_unlock( &self->mutex );
500 mlt_properties_set_int( properties, "width", self->current_width );
501 mlt_properties_set_int( properties, "height", self->current_height );