git.sesse.net Git - kdenlive/blob - src/titledocument.cpp

   1 /***************************************************************************
   2                           titledocument.h  -  description
   3                              -------------------
   4     begin                : Feb 28 2008
   5     copyright            : (C) 2008 by Marco Gittler
   6     email                : g.marco@freenet.de
   7  ***************************************************************************/
   8
   9 /***************************************************************************
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  ***************************************************************************/
  17
  18 #include "titledocument.h"
  19
  20 #include <KDebug>
  21 #include <KTemporaryFile>
  22 #include <kio/netaccess.h>
  23
  24 #include <QGraphicsScene>
  25 #include <QDomElement>
  26 #include <QGraphicsItem>
  27 #include <QGraphicsRectItem>
  28 #include <QGraphicsTextItem>
  29 #include <QGraphicsSvgItem>
  30 #include <QFontInfo>
  31 #include <QFile>
  32
  33
  34 TitleDocument::TitleDocument() {
  35     scene = NULL;
  36 }
  37
  38 void TitleDocument::setScene(QGraphicsScene* _scene) {
  39     scene = _scene;
  40 }
  41
  42 QDomDocument TitleDocument::xml(QGraphicsPolygonItem* startv, QGraphicsPolygonItem* endv) {
  43     QDomDocument doc;
  44
  45     QDomElement main = doc.createElement("kdenlivetitle");
  46     doc.appendChild(main);
  47
  48     foreach(QGraphicsItem* item, scene->items()) {
  49         QDomElement e = doc.createElement("item");
  50         QDomElement content = doc.createElement("content");
  51         QFont font;
  52         QGraphicsTextItem *t;
  53
  54         switch (item->type()) {
  55         case 7:
  56             e.setAttribute("type", "QGraphicsPixmapItem");
  57             content.setAttribute("url", item->data(Qt::UserRole).toString());
  58             break;
  59         case 13:
  60             e.setAttribute("type", "QGraphicsSvgItem");
  61             content.setAttribute("url", item->data(Qt::UserRole).toString());
  62             break;
  63         case 3:
  64             e.setAttribute("type", "QGraphicsRectItem");
  65             content.setAttribute("rect", rectFToString(((QGraphicsRectItem*)item)->rect()));
  66             content.setAttribute("pencolor", colorToString(((QGraphicsRectItem*)item)->pen().color()));
  67             content.setAttribute("penwidth", ((QGraphicsRectItem*)item)->pen().width());
  68             content.setAttribute("brushcolor", colorToString(((QGraphicsRectItem*)item)->brush().color()));
  69             break;
  70         case 8:
  71             e.setAttribute("type", "QGraphicsTextItem");
  72             t = static_cast<QGraphicsTextItem *>(item);
  73             // Don't save empty text nodes
  74             if (t->toPlainText().simplified().isEmpty()) continue;
  75             //content.appendChild(doc.createTextNode(((QGraphicsTextItem*)item)->toHtml()));
  76             content.appendChild(doc.createTextNode(t->toPlainText()));
  77             font = t->font();
  78             content.setAttribute("font", font.family());
  79             content.setAttribute("font-bold", font.bold());
  80             content.setAttribute("font-pixel-size", font.pixelSize());
  81             content.setAttribute("font-italic", font.italic());
  82             content.setAttribute("font-underline", font.underline());
  83             content.setAttribute("font-color", colorToString(t->defaultTextColor()));
  84             break;
  85         default:
  86             continue;
  87         }
  88         QDomElement pos = doc.createElement("position");
  89         pos.setAttribute("x", item->pos().x());
  90         pos.setAttribute("y", item->pos().y());
  91         QTransform transform = item->transform();
  92         QDomElement tr = doc.createElement("transform");
  93         tr.appendChild(doc.createTextNode(
  94                            QString("%1,%2,%3,%4,%5,%6,%7,%8,%9").arg(
  95                                transform.m11()).arg(transform.m12()).arg(transform.m13()).arg(transform.m21()).arg(transform.m22()).arg(transform.m23()).arg(transform.m31()).arg(transform.m32()).arg(transform.m33())
  96                        )
  97                       );
  98         e.setAttribute("z-index", item->zValue());
  99         pos.appendChild(tr);
 100
 101
 102         e.appendChild(pos);
 103         e.appendChild(content);
 104         if (item->zValue() > -1100) main.appendChild(e);
 105     }
 106     if (startv && endv) {
 107         QDomElement endp = doc.createElement("endviewport");
 108         QDomElement startp = doc.createElement("startviewport");
 109         endp.setAttribute("x", endv->pos().x());
 110         endp.setAttribute("y", endv->pos().y());
 111         endp.setAttribute("size", endv->sceneBoundingRect().width() / 2);
 112
 113         startp.setAttribute("x", startv->pos().x());
 114         startp.setAttribute("y", startv->pos().y());
 115         startp.setAttribute("size", startv->sceneBoundingRect().width() / 2);
 116
 117         startp.setAttribute("z-index", startv->zValue());
 118         endp.setAttribute("z-index", endv->zValue());
 119         main.appendChild(startp);
 120         main.appendChild(endp);
 121     }
 122     QDomElement backgr = doc.createElement("background");
 123     QColor color = getBackgroundColor();
 124     backgr.setAttribute("color", colorToString(color));
 125     main.appendChild(backgr);
 126
 127     return doc;
 128 }
 129
 130 /** \brief Get the background color (incl. alpha) from the document, if possibly
 131   * \returns The background color of the document, inclusive alpha. If none found, returns (0,0,0,0) */
 132 QColor TitleDocument::getBackgroundColor() {
 133     QColor color(0, 0, 0, 0);
 134     if (scene) {
 135         QList<QGraphicsItem *> items = scene->items();
 136         for (int i = 0; i < items.size(); i++) {
 137             if (items.at(i)->zValue() == -1100) {
 138                 color = ((QGraphicsRectItem *)items.at(i))->brush().color();
 139                 return color;
 140             }
 141         }
 142     }
 143     return color;
 144 }
 145
 146
 147 bool TitleDocument::saveDocument(const KUrl& url, QGraphicsPolygonItem* startv, QGraphicsPolygonItem* endv) {
 148     if (!scene)
 149         return false;
 150
 151     QDomDocument doc = xml(startv, endv);
 152     KTemporaryFile tmpfile;
 153     if (!tmpfile.open()) {
 154         kWarning() << "/////  CANNOT CREATE TMP FILE in: " << tmpfile.fileName();
 155         return false;
 156     }
 157     QFile xmlf(tmpfile.fileName());
 158     xmlf.open(QIODevice::WriteOnly);
 159     xmlf.write(doc.toString().toUtf8());
 160     if (xmlf.error() != QFile::NoError) {
 161         xmlf.close();
 162         return false;
 163     }
 164     xmlf.close();
 165     return KIO::NetAccess::upload(tmpfile.fileName(), url, 0);
 166 }
 167
 168 int TitleDocument::loadDocument(const KUrl& url, QGraphicsPolygonItem* startv, QGraphicsPolygonItem* endv) {
 169     QString tmpfile;
 170     QDomDocument doc;
 171     if (!scene)
 172         return -1;
 173
 174     if (KIO::NetAccess::download(url, tmpfile, 0)) {
 175         QFile file(tmpfile);
 176         if (file.open(QIODevice::ReadOnly)) {
 177             doc.setContent(&file, false);
 178             file.close();
 179         } else
 180             return -1;
 181         KIO::NetAccess::removeTempFile(tmpfile);
 182         return loadFromXml(doc, startv, endv);
 183     }
 184     return -1;
 185 }
 186
 187 int TitleDocument::loadFromXml(QDomDocument doc, QGraphicsPolygonItem* /*startv*/, QGraphicsPolygonItem* /*endv*/) {
 188     QDomNodeList titles = doc.elementsByTagName("kdenlivetitle");
 189     int maxZValue = 0;
 190     if (titles.size()) {
 191
 192         QDomNodeList items = titles.item(0).childNodes();
 193         for (int i = 0;i < items.count();i++) {
 194             QGraphicsItem *gitem = NULL;
 195             kDebug() << items.item(i).attributes().namedItem("type").nodeValue();
 196             int zValue = items.item(i).attributes().namedItem("z-index").nodeValue().toInt();
 197             if (zValue > -1000) {
 198                 if (items.item(i).attributes().namedItem("type").nodeValue() == "QGraphicsTextItem") {
 199                     QDomNamedNodeMap txtProperties = items.item(i).namedItem("content").attributes();
 200                     QFont font(txtProperties.namedItem("font").nodeValue());
 201                     font.setBold(txtProperties.namedItem("font-bold").nodeValue().toInt());
 202                     font.setItalic(txtProperties.namedItem("font-italic").nodeValue().toInt());
 203                     font.setUnderline(txtProperties.namedItem("font-underline").nodeValue().toInt());
 204                     // Older Kdenlive version did not store pixel size but point size
 205                     if (txtProperties.namedItem("font-pixel-size").isNull()) {
 206                         QFont f2;
 207                         f2.setPointSize(txtProperties.namedItem("font-size").nodeValue().toInt());
 208                         font.setPixelSize(QFontInfo(f2).pixelSize());
 209                     } else font.setPixelSize(txtProperties.namedItem("font-pixel-size").nodeValue().toInt());
 210                     QColor col(stringToColor(txtProperties.namedItem("font-color").nodeValue()));
 211                     QGraphicsTextItem *txt = scene->addText(items.item(i).namedItem("content").firstChild().nodeValue(), font);
 212                     txt->setDefaultTextColor(col);
 213                     txt->setTextInteractionFlags(Qt::NoTextInteraction);
 214                     gitem = txt;
 215                 } else if (items.item(i).attributes().namedItem("type").nodeValue() == "QGraphicsRectItem") {
 216                     QString rect = items.item(i).namedItem("content").attributes().namedItem("rect").nodeValue();
 217                     QString br_str = items.item(i).namedItem("content").attributes().namedItem("brushcolor").nodeValue();
 218                     QString pen_str = items.item(i).namedItem("content").attributes().namedItem("pencolor").nodeValue();
 219                     double penwidth = items.item(i).namedItem("content").attributes().namedItem("penwidth").nodeValue().toDouble();
 220                     QGraphicsRectItem *rec = scene->addRect(stringToRect(rect), QPen(QBrush(stringToColor(pen_str)), penwidth), QBrush(stringToColor(br_str)));
 221                     gitem = rec;
 222                 } else if (items.item(i).attributes().namedItem("type").nodeValue() == "QGraphicsPixmapItem") {
 223                     QString url = items.item(i).namedItem("content").attributes().namedItem("url").nodeValue();
 224                     QPixmap pix(url);
 225                     QGraphicsPixmapItem *rec = scene->addPixmap(pix);
 226                     rec->setData(Qt::UserRole, url);
 227                     gitem = rec;
 228                 } else if (items.item(i).attributes().namedItem("type").nodeValue() == "QGraphicsSvgItem") {
 229                     QString url = items.item(i).namedItem("content").attributes().namedItem("url").nodeValue();
 230                     QGraphicsSvgItem *rec = new QGraphicsSvgItem(url);
 231                     scene->addItem(rec);
 232                     rec->setData(Qt::UserRole, url);
 233                     gitem = rec;
 234                 }
 235             }
 236             //pos and transform
 237             if (gitem) {
 238                 QPointF p(items.item(i).namedItem("position").attributes().namedItem("x").nodeValue().toDouble(),
 239                           items.item(i).namedItem("position").attributes().namedItem("y").nodeValue().toDouble());
 240                 gitem->setPos(p);
 241                 gitem->setTransform(stringToTransform(items.item(i).namedItem("position").firstChild().firstChild().nodeValue()));
 242                 int zValue = items.item(i).attributes().namedItem("z-index").nodeValue().toInt();
 243                 if (zValue > maxZValue) maxZValue = zValue;
 244                 gitem->setZValue(zValue);
 245                 gitem->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
 246             }
 247             if (items.item(i).nodeName() == "background") {
 248                 kDebug() << items.item(i).attributes().namedItem("color").nodeValue();
 249                 QColor color = QColor(stringToColor(items.item(i).attributes().namedItem("color").nodeValue()));
 250                 //color.setAlpha(items.item(i).attributes().namedItem("alpha").nodeValue().toInt());
 251                 QList<QGraphicsItem *> items = scene->items();
 252                 for (int i = 0; i < items.size(); i++) {
 253                     if (items.at(i)->zValue() == -1100) {
 254                         ((QGraphicsRectItem *)items.at(i))->setBrush(QBrush(color));
 255                         break;
 256                     }
 257                 }
 258             } /*else if (items.item(i).nodeName() == "startviewport" && startv) {
 259                     QPointF p(items.item(i).attributes().namedItem("x").nodeValue().toDouble(), items.item(i).attributes().namedItem("y").nodeValue().toDouble());
 260                     double width = items.item(i).attributes().namedItem("size").nodeValue().toDouble();
 261                     QRectF rect(-width, -width / aspect_ratio, width*2.0, width / aspect_ratio*2.0);
 262                     kDebug() << width << rect;
 263                     startv->setPolygon(rect);
 264                     startv->setPos(p);
 265                 } else if (items.item(i).nodeName() == "endviewport" && endv) {
 266                     QPointF p(items.item(i).attributes().namedItem("x").nodeValue().toDouble(), items.item(i).attributes().namedItem("y").nodeValue().toDouble());
 267                     double width = items.item(i).attributes().namedItem("size").nodeValue().toDouble();
 268                     QRectF rect(-width, -width / aspect_ratio, width*2.0, width / aspect_ratio*2.0);
 269                     kDebug() << width << rect;
 270                     endv->setPolygon(rect);
 271                     endv->setPos(p);
 272                 }*/
 273         }
 274     }
 275     return maxZValue;
 276 }
 277
 278 QString TitleDocument::colorToString(const QColor& c) {
 279     QString ret = "%1,%2,%3,%4";
 280     ret = ret.arg(c.red()).arg(c.green()).arg(c.blue()).arg(c.alpha());
 281     return ret;
 282 }
 283
 284 QString TitleDocument::rectFToString(const QRectF& c) {
 285     QString ret = "%1,%2,%3,%4";
 286     ret = ret.arg(c.x()).arg(c.y()).arg(c.width()).arg(c.height());
 287     return ret;
 288 }
 289
 290 QRectF TitleDocument::stringToRect(const QString & s) {
 291
 292     QStringList l = s.split(',');
 293     if (l.size() < 4)
 294         return QRectF();
 295     return QRectF(l[0].toDouble(), l[1].toDouble(), l[2].toDouble(), l[3].toDouble());
 296 }
 297
 298 QColor TitleDocument::stringToColor(const QString & s) {
 299     QStringList l = s.split(',');
 300     if (l.size() < 4)
 301         return QColor();
 302     return QColor(l[0].toInt(), l[1].toInt(), l[2].toInt(), l[3].toInt());;
 303 }
 304 QTransform TitleDocument::stringToTransform(const QString& s) {
 305     QStringList l = s.split(',');
 306     if (l.size() < 9)
 307         return QTransform();
 308     return QTransform(
 309                l[0].toDouble(), l[1].toDouble(), l[2].toDouble(),
 310                l[3].toDouble(), l[4].toDouble(), l[5].toDouble(),
 311                l[6].toDouble(), l[7].toDouble(), l[8].toDouble()
 312            );
 313 }