2 * kdenlivetitle_wrapper.cpp -- kdenlivetitle wrapper
3 * Copyright (c) 2009 Marco Gittler <g.marco@freenet.de>
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.
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.
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
20 #include <QtGui/QImage>
21 #include <QtGui/QPainter>
22 #include <QtCore/QCoreApplication>
23 #include <QtGui/QApplication>
24 #include <QtCore/QDebug>
25 #include <QtCore/QFile>
26 #include <QtGui/QGraphicsView>
27 #include <QtGui/QGraphicsScene>
28 #include <QtGui/QGraphicsTextItem>
29 #include <QtGui/QGraphicsPolygonItem>
30 #include <QtGui/QTextCursor>
31 #include "kdenlivetitle_wrapper.h"
32 #include <framework/mlt_producer.h>
34 void init_qt (const char* c){
35 titleclass=new Title(QString(c));
37 void refresh_kdenlivetitle( uint8_t* buffer, int width, int height , double position){
38 QImage* ret=titleclass->drawKdenliveTitle(buffer,width,height,position);
39 memcpy(buffer,ret->bits(),width*height*4);
41 //return (uint8_t*)cpy;
44 Title::Title(const QString& filename):m_filename(filename),m_scene(NULL){
45 //must be extracted from kdenlive title
46 start =new QGraphicsPolygonItem(QPolygonF(QRectF(100, 100, 600, 600)));;
47 end=new QGraphicsPolygonItem(QPolygonF(QRectF(0, 0, 300, 300)));;
49 QImage* Title::drawKdenliveTitle(uint8_t * buffer ,int width,int height,double position){
54 if (! QApplication::activeWindow())
56 app=new QApplication(argc,argv);
57 m_scene=new QGraphicsScene;
58 loadDocument(m_filename,start,end);
60 //must be extracted from kdenlive title
62 //qDebug() << width << height;
63 QImage *img=new QImage(width,height,QImage::Format_ARGB32);
64 //QImage img((uchar*)buffer,width,height,width*4,QImage::Format_ARGB32);
65 //img->fill(Qt::transparent);
66 //memset(buffer,127,width*height+4);
67 QRectF rstart=start->boundingRect();
68 QRectF rend=end->boundingRect();
69 QPointF topleft=rstart.topLeft()+(rend.topLeft()-rstart.topLeft())*position;
70 QPointF bottomRight=rstart.bottomRight()+(rend.bottomRight()-rstart.bottomRight())*position;
73 p1.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing);//|QPainter::SmoothPixmapTransform );
74 m_scene->render(&p1,QRect(0,0,width,height),QRectF(topleft,bottomRight));
76 uint8_t* pointer=img->bits();
77 for (int i=0;i<width*height*4;i+=4){
78 uint8_t v=i>11000 && i< 35000 ?255:0;
79 uint8_t a=pointer[0],r=pointer[1],g=pointer[2],b=pointer[3];
87 img->save("test.png");
89 //qDebug() << img.hasAlphaChannel();
91 int Title::loadDocument(const QString& url, QGraphicsPolygonItem* startv, QGraphicsPolygonItem* endv)
98 if (file.open(QIODevice::ReadOnly)) {
99 doc.setContent(&file, false);
102 return loadFromXml(doc, startv, endv);
104 int Title::loadFromXml(QDomDocument doc, QGraphicsPolygonItem* /*startv*/, QGraphicsPolygonItem* /*endv*/)
106 QDomNodeList titles = doc.elementsByTagName("kdenlivetitle");
110 QDomNodeList items = titles.item(0).childNodes();
111 for (int i = 0; i < items.count(); i++) {
112 QGraphicsItem *gitem = NULL;
113 int zValue = items.item(i).attributes().namedItem("z-index").nodeValue().toInt();
114 if (zValue > -1000) {
115 if (items.item(i).attributes().namedItem("type").nodeValue() == "QGraphicsTextItem") {
116 QDomNamedNodeMap txtProperties = items.item(i).namedItem("content").attributes();
117 QFont font(txtProperties.namedItem("font").nodeValue());
118 font.setBold(txtProperties.namedItem("font-bold").nodeValue().toInt());
119 font.setItalic(txtProperties.namedItem("font-italic").nodeValue().toInt());
120 font.setUnderline(txtProperties.namedItem("font-underline").nodeValue().toInt());
121 // Older Kdenlive version did not store pixel size but point size
122 if (txtProperties.namedItem("font-pixel-size").isNull()) {
124 f2.setPointSize(txtProperties.namedItem("font-size").nodeValue().toInt());
125 font.setPixelSize(QFontInfo(f2).pixelSize());
127 font.setPixelSize(txtProperties.namedItem("font-pixel-size").nodeValue().toInt());
128 QColor col(stringToColor(txtProperties.namedItem("font-color").nodeValue()));
129 QGraphicsTextItem *txt = m_scene->addText(items.item(i).namedItem("content").firstChild().nodeValue(), font);
130 txt->setDefaultTextColor(col);
131 txt->setTextInteractionFlags(Qt::NoTextInteraction);
132 if (txtProperties.namedItem("alignment").isNull() == false) {
133 txt->setTextWidth(txt->boundingRect().width());
134 QTextCursor cur = txt->textCursor();
135 QTextBlockFormat format = cur.blockFormat();
136 format.setAlignment((Qt::Alignment) txtProperties.namedItem("alignment").nodeValue().toInt());
137 cur.select(QTextCursor::Document);
138 cur.setBlockFormat(format);
139 txt->setTextCursor(cur);
140 cur.clearSelection();
141 txt->setTextCursor(cur);
144 if (!txtProperties.namedItem("kdenlive-axis-x-inverted").isNull()) {
145 //txt->setData(OriginXLeft, txtProperties.namedItem("kdenlive-axis-x-inverted").nodeValue().toInt());
147 if (!txtProperties.namedItem("kdenlive-axis-y-inverted").isNull()) {
148 //txt->setData(OriginYTop, txtProperties.namedItem("kdenlive-axis-y-inverted").nodeValue().toInt());
152 } else if (items.item(i).attributes().namedItem("type").nodeValue() == "QGraphicsRectItem") {
153 QString rect = items.item(i).namedItem("content").attributes().namedItem("rect").nodeValue();
154 QString br_str = items.item(i).namedItem("content").attributes().namedItem("brushcolor").nodeValue();
155 QString pen_str = items.item(i).namedItem("content").attributes().namedItem("pencolor").nodeValue();
156 double penwidth = items.item(i).namedItem("content").attributes().namedItem("penwidth").nodeValue().toDouble();
157 QGraphicsRectItem *rec = m_scene->addRect(stringToRect(rect), QPen(QBrush(stringToColor(pen_str)), penwidth), QBrush(stringToColor(br_str)));
159 } else if (items.item(i).attributes().namedItem("type").nodeValue() == "QGraphicsPixmapItem") {
160 QString url = items.item(i).namedItem("content").attributes().namedItem("url").nodeValue();
162 QGraphicsPixmapItem *rec = m_scene->addPixmap(pix);
163 rec->setData(Qt::UserRole, url);
165 } else if (items.item(i).attributes().namedItem("type").nodeValue() == "QGraphicsSvgItem") {
166 QString url = items.item(i).namedItem("content").attributes().namedItem("url").nodeValue();
167 //QGraphicsSvgItem *rec = new QGraphicsSvgItem(url);
168 //m_scene->addItem(rec);
169 //rec->setData(Qt::UserRole, url);
175 QPointF p(items.item(i).namedItem("position").attributes().namedItem("x").nodeValue().toDouble(),
176 items.item(i).namedItem("position").attributes().namedItem("y").nodeValue().toDouble());
178 gitem->setTransform(stringToTransform(items.item(i).namedItem("position").firstChild().firstChild().nodeValue()));
179 int zValue = items.item(i).attributes().namedItem("z-index").nodeValue().toInt();
180 if (zValue > maxZValue) maxZValue = zValue;
181 gitem->setZValue(zValue);
182 //gitem->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
184 if (items.item(i).nodeName() == "background") {
185 QColor color = QColor(stringToColor(items.item(i).attributes().namedItem("color").nodeValue()));
186 //color.setAlpha(items.item(i).attributes().namedItem("alpha").nodeValue().toInt());
187 QList<QGraphicsItem *> items = m_scene->items();
188 for (int i = 0; i < items.size(); i++) {
189 if (items.at(i)->zValue() == -1100) {
190 ((QGraphicsRectItem *)items.at(i))->setBrush(QBrush(color));
194 } /*else if (items.item(i).nodeName() == "startviewport" && startv) {
195 QPointF p(items.item(i).attributes().namedItem("x").nodeValue().toDouble(), items.item(i).attributes().namedItem("y").nodeValue().toDouble());
196 double width = items.item(i).attributes().namedItem("size").nodeValue().toDouble();
197 QRectF rect(-width, -width / aspect_ratio, width*2.0, width / aspect_ratio*2.0);
198 kDebug() << width << rect;
199 startv->setPolygon(rect);
201 } else if (items.item(i).nodeName() == "endviewport" && endv) {
202 QPointF p(items.item(i).attributes().namedItem("x").nodeValue().toDouble(), items.item(i).attributes().namedItem("y").nodeValue().toDouble());
203 double width = items.item(i).attributes().namedItem("size").nodeValue().toDouble();
204 QRectF rect(-width, -width / aspect_ratio, width*2.0, width / aspect_ratio*2.0);
205 kDebug() << width << rect;
206 endv->setPolygon(rect);
214 QString Title::colorToString(const QColor& c)
216 QString ret = "%1,%2,%3,%4";
217 ret = ret.arg(c.red()).arg(c.green()).arg(c.blue()).arg(c.alpha());
221 QString Title::rectFToString(const QRectF& c)
223 QString ret = "%1,%2,%3,%4";
224 ret = ret.arg(c.top()).arg(c.left()).arg(c.width()).arg(c.height());
228 QRectF Title::stringToRect(const QString & s)
231 QStringList l = s.split(',');
234 return QRectF(l.at(0).toDouble(), l.at(1).toDouble(), l.at(2).toDouble(), l.at(3).toDouble()).normalized();
237 QColor Title::stringToColor(const QString & s)
239 QStringList l = s.split(',');
242 return QColor(l.at(0).toInt(), l.at(1).toInt(), l.at(2).toInt(), l.at(3).toInt());;
244 QTransform Title::stringToTransform(const QString& s)
246 QStringList l = s.split(',');
250 l.at(0).toDouble(), l.at(1).toDouble(), l.at(2).toDouble(),
251 l.at(3).toDouble(), l.at(4).toDouble(), l.at(5).toDouble(),
252 l.at(6).toDouble(), l.at(7).toDouble(), l.at(8).toDouble()