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())
217 format.setForeground(QBrush(col));
219 cursor.mergeCharFormat(format);
221 txt->setDefaultTextColor( col );
225 if (!txtProperties.namedItem( "typewriter" ).isNull()) {
227 mlt_properties_set_int( producer_props, "_animated", 1 );
228 QStringList effetData = QStringList() << "typewriter" << text << txtProperties.namedItem( "typewriter" ).nodeValue();
229 txt->setData(0, effetData);
232 if ( txtProperties.namedItem( "alignment" ).isNull() == false )
234 txt->setTextWidth( txt->boundingRect().width() );
235 QTextOption opt = txt->document()->defaultTextOption ();
236 opt.setAlignment(( Qt::Alignment ) txtProperties.namedItem( "alignment" ).nodeValue().toInt() );
237 txt->document()->setDefaultTextOption (opt);
239 if ( !txtProperties.namedItem( "kdenlive-axis-x-inverted" ).isNull() )
241 //txt->setData(OriginXLeft, txtProperties.namedItem("kdenlive-axis-x-inverted").nodeValue().toInt());
243 if ( !txtProperties.namedItem( "kdenlive-axis-y-inverted" ).isNull() )
245 //txt->setData(OriginYTop, txtProperties.namedItem("kdenlive-axis-y-inverted").nodeValue().toInt());
249 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsRectItem" )
251 QString rect = items.item( i ).namedItem( "content" ).attributes().namedItem( "rect" ).nodeValue();
252 QString br_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "brushcolor" ).nodeValue();
253 QString pen_str = items.item( i ).namedItem( "content" ).attributes().namedItem( "pencolor" ).nodeValue();
254 double penwidth = items.item( i ).namedItem( "content" ).attributes().namedItem( "penwidth") .nodeValue().toDouble();
255 QGraphicsRectItem *rec = scene->addRect( stringToRect( rect ), QPen( QBrush( stringToColor( pen_str ) ), penwidth ), QBrush( stringToColor( br_str ) ) );
258 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsPixmapItem" )
260 const QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
262 ImageItem *rec = new ImageItem(img);
263 scene->addItem( rec );
266 else if ( items.item( i ).attributes().namedItem( "type" ).nodeValue() == "QGraphicsSvgItem" )
268 const QString url = items.item( i ).namedItem( "content" ).attributes().namedItem( "url" ).nodeValue();
269 QGraphicsSvgItem *rec = new QGraphicsSvgItem(url);
277 QPointF p( items.item( i ).namedItem( "position" ).attributes().namedItem( "x" ).nodeValue().toDouble(),
278 items.item( i ).namedItem( "position" ).attributes().namedItem( "y" ).nodeValue().toDouble() );
280 gitem->setTransform( stringToTransform( items.item( i ).namedItem( "position" ).firstChild().firstChild().nodeValue() ) );
281 int zValue = items.item( i ).attributes().namedItem( "z-index" ).nodeValue().toInt();
282 gitem->setZValue( zValue );
284 #if QT_VERSION >= 0x040600
286 QDomNode eff = items.item(i).namedItem("effect");
288 QDomElement e = eff.toElement();
289 if (e.attribute("type") == "blur") {
290 QGraphicsBlurEffect *blur = new QGraphicsBlurEffect();
291 blur->setBlurRadius(e.attribute("blurradius").toInt());
292 gitem->setGraphicsEffect(blur);
294 else if (e.attribute("type") == "shadow") {
295 QGraphicsDropShadowEffect *shadow = new QGraphicsDropShadowEffect();
296 shadow->setBlurRadius(e.attribute("blurradius").toInt());
297 shadow->setOffset(e.attribute("xoffset").toInt(), e.attribute("yoffset").toInt());
298 gitem->setGraphicsEffect(shadow);
305 QDomNode n = title.firstChildElement("background");
307 QColor color = QColor( stringToColor( n.attributes().namedItem( "color" ).nodeValue() ) );
308 if (color.alpha() > 0) {
309 QGraphicsRectItem *rec = scene->addRect(0, 0, scene->width(), scene->height() , QPen( Qt::NoPen ), QBrush( color ) );
310 rec->setZValue(-1100);
316 n = title.firstChildElement( "startviewport" );
317 // Check if node exists, if it has an x attribute, it is an old version title, don't use viewport
318 if (!n.isNull() && !n.toElement().hasAttribute("x"))
320 startRect = n.attributes().namedItem( "rect" ).nodeValue();
322 n = title.firstChildElement( "endviewport" );
323 // Check if node exists, if it has an x attribute, it is an old version title, don't use viewport
324 if (!n.isNull() && !n.toElement().hasAttribute("x"))
326 QString rect = n.attributes().namedItem( "rect" ).nodeValue();
327 if (startRect != rect)
328 mlt_properties_set( producer_props, "_endrect", rect.toUtf8().data() );
330 if (!startRect.isEmpty()) {
331 mlt_properties_set( producer_props, "_startrect", startRect.toUtf8().data() );
337 void drawKdenliveTitle( producer_ktitle self, mlt_frame frame, int width, int height, double position, int force_refresh )
339 // Obtain the producer
340 mlt_producer producer = &self->parent;
341 mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
343 // Obtain properties of frame
344 mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
346 pthread_mutex_lock( &self->mutex );
348 // Check if user wants us to reload the image
349 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 )
351 //mlt_cache_item_close( self->image_cache );
352 self->current_image = NULL;
353 mlt_properties_set_data( producer_props, "cached_image", NULL, 0, NULL, NULL );
354 mlt_properties_set_int( producer_props, "force_reload", 0 );
357 if (self->current_image == NULL) {
358 // restore QGraphicsScene
359 QGraphicsScene *scene = static_cast<QGraphicsScene *> (mlt_properties_get_data( producer_props, "qscene", NULL ));
361 if ( force_refresh == 1 && scene )
364 mlt_properties_set_data( producer_props, "qscene", NULL, 0, NULL, NULL );
371 argv[0] = (char*) "xxx";
373 // Warning: all Qt graphic objects (QRect, ...) must be initialized AFTER
374 // the QApplication is created, otherwise their will be NULL
382 if ( getenv("DISPLAY") == 0 )
384 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" );
385 pthread_mutex_unlock( &self->mutex );
390 app = new QApplication( argc, argv );
391 //fix to let the decimal point for every locale be: "."
392 setlocale(LC_NUMERIC,"POSIX");
395 scene = new QGraphicsScene();
396 scene->setItemIndexMethod( QGraphicsScene::NoIndex );
397 scene->setSceneRect(0, 0, mlt_properties_get_int( properties, "width" ), mlt_properties_get_int( properties, "height" ));
398 loadFromXml( producer, scene, mlt_properties_get( producer_props, "xmldata" ), mlt_properties_get( producer_props, "templatetext" ) );
399 mlt_properties_set_data( producer_props, "qscene", scene, 0, ( mlt_destructor )qscene_delete, NULL );
402 QRectF start = stringToRect( QString( mlt_properties_get( producer_props, "_startrect" ) ) );
403 QRectF end = stringToRect( QString( mlt_properties_get( producer_props, "_endrect" ) ) );
405 int originalWidth = mlt_properties_get_int( producer_props, "_original_width" );
406 int originalHeight= mlt_properties_get_int( producer_props, "_original_height" );
407 const QRectF source( 0, 0, width, height );
408 if (start.isNull()) {
409 start = QRectF( 0, 0, originalWidth, originalHeight );
413 QList <QGraphicsItem *> items = scene->items();
414 QGraphicsTextItem *titem = NULL;
415 for (int i = 0; i < items.count(); i++) {
416 titem = static_cast <QGraphicsTextItem*> ( items.at( i ) );
417 if (titem && !titem->data( 0 ).isNull()) {
418 QStringList params = titem->data( 0 ).toStringList();
419 if (params.at( 0 ) == "typewriter" ) {
420 // typewriter effect has 2 param values:
421 // the keystroke delay and a start offset, both in frames
422 QStringList values = params.at( 2 ).split( ";" );
423 int interval = qMax( 0, ( ( int ) position - values.at( 1 ).toInt()) / values.at( 0 ).toInt() );
424 QTextDocument *td = new QTextDocument( params.at( 1 ).left( interval ) );
425 td->setDefaultFont( titem->font() );
426 td->setDefaultTextOption( titem->document()->defaultTextOption() );
427 td->setTextWidth( titem->document()->textWidth() );
428 titem->setDocument( td );
433 //must be extracted from kdenlive title
434 QImage img( width, height, QImage::Format_ARGB32 );
438 p1.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing );
439 //| QPainter::SmoothPixmapTransform );
440 mlt_position anim_out = mlt_properties_get_position( producer_props, "_animation_out" );
444 scene->render( &p1, source, start, Qt::IgnoreAspectRatio );
446 else if ( position > anim_out ) {
447 scene->render( &p1, source, end, Qt::IgnoreAspectRatio );
450 double percentage = position / anim_out;
451 QPointF topleft = start.topLeft() + ( end.topLeft() - start.topLeft() ) * percentage;
452 QPointF bottomRight = start.bottomRight() + ( end.bottomRight() - start.bottomRight() ) * percentage;
453 const QRectF r1( topleft, bottomRight );
454 scene->render( &p1, source, r1, Qt::IgnoreAspectRatio );
458 int size = width * height * 4;
459 uint8_t *pointer=img.bits();
460 QRgb* src = ( QRgb* ) pointer;
461 self->current_image = ( uint8_t * )mlt_pool_alloc( size );
462 uint8_t *dst = self->current_image;
464 for ( int i = 0; i < width * height * 4; i += 4 )
467 *dst++=qGreen( *src );
468 *dst++=qBlue( *src );
469 *dst++=qAlpha( *src );
473 mlt_properties_set_data( producer_props, "cached_image", self->current_image, size, mlt_pool_release, NULL );
474 self->current_width = width;
475 self->current_height = height;
478 pthread_mutex_unlock( &self->mutex );
479 mlt_properties_set_int( properties, "width", self->current_width );
480 mlt_properties_set_int( properties, "height", self->current_height );