Exemplo n.º 1
0
  private Map<String, TtmlStyle> parseHeader(
      XmlPullParser xmlParser, Map<String, TtmlStyle> globalStyles)
      throws IOException, XmlPullParserException {

    do {
      xmlParser.next();
      if (ParserUtil.isStartTag(xmlParser, TtmlNode.TAG_STYLE)) {
        String parentStyleId = xmlParser.getAttributeValue(null, ATTR_STYLE);
        TtmlStyle style = parseStyleAttributes(xmlParser, new TtmlStyle());
        if (parentStyleId != null) {
          String[] ids = parseStyleIds(parentStyleId);
          for (int i = 0; i < ids.length; i++) {
            style.chain(globalStyles.get(ids[i]));
          }
        }
        if (style.getId() != null) {
          globalStyles.put(style.getId(), style);
        }
      }
    } while (!ParserUtil.isEndTag(xmlParser, TtmlNode.TAG_HEAD));
    return globalStyles;
  }
Exemplo n.º 2
0
 private TtmlNode parseNode(XmlPullParser parser, TtmlNode parent) throws ParserException {
   long duration = 0;
   long startTime = TtmlNode.UNDEFINED_TIME;
   long endTime = TtmlNode.UNDEFINED_TIME;
   String[] styleIds = null;
   int attributeCount = parser.getAttributeCount();
   TtmlStyle style = parseStyleAttributes(parser, null);
   for (int i = 0; i < attributeCount; i++) {
     String attr = ParserUtil.removeNamespacePrefix(parser.getAttributeName(i));
     String value = parser.getAttributeValue(i);
     if (attr.equals(ATTR_BEGIN)) {
       startTime =
           parseTimeExpression(value, DEFAULT_FRAMERATE, DEFAULT_SUBFRAMERATE, DEFAULT_TICKRATE);
     } else if (attr.equals(ATTR_END)) {
       endTime =
           parseTimeExpression(value, DEFAULT_FRAMERATE, DEFAULT_SUBFRAMERATE, DEFAULT_TICKRATE);
     } else if (attr.equals(ATTR_DURATION)) {
       duration =
           parseTimeExpression(value, DEFAULT_FRAMERATE, DEFAULT_SUBFRAMERATE, DEFAULT_TICKRATE);
     } else if (attr.equals(ATTR_STYLE)) {
       // IDREFS: potentially multiple space delimited ids
       String[] ids = parseStyleIds(value);
       if (ids.length > 0) {
         styleIds = ids;
       }
     } else {
       // Do nothing.
     }
   }
   if (parent != null && parent.startTimeUs != TtmlNode.UNDEFINED_TIME) {
     if (startTime != TtmlNode.UNDEFINED_TIME) {
       startTime += parent.startTimeUs;
     }
     if (endTime != TtmlNode.UNDEFINED_TIME) {
       endTime += parent.startTimeUs;
     }
   }
   if (endTime == TtmlNode.UNDEFINED_TIME) {
     if (duration > 0) {
       // Infer the end time from the duration.
       endTime = startTime + duration;
     } else if (parent != null && parent.endTimeUs != TtmlNode.UNDEFINED_TIME) {
       // If the end time remains unspecified, then it should be inherited from the parent.
       endTime = parent.endTimeUs;
     }
   }
   return TtmlNode.buildNode(parser.getName(), startTime, endTime, style, styleIds);
 }
Exemplo n.º 3
0
 private TtmlStyle parseStyleAttributes(XmlPullParser parser, TtmlStyle style) {
   int attributeCount = parser.getAttributeCount();
   for (int i = 0; i < attributeCount; i++) {
     String attributeName = parser.getAttributeName(i);
     String attributeValue = parser.getAttributeValue(i);
     switch (ParserUtil.removeNamespacePrefix(attributeName)) {
       case TtmlNode.ATTR_ID:
         if (TtmlNode.TAG_STYLE.equals(parser.getName())) {
           style = createIfNull(style).setId(attributeValue);
         }
         break;
       case TtmlNode.ATTR_TTS_BACKGROUND_COLOR:
         style = createIfNull(style);
         try {
           style.setBackgroundColor(TtmlColorParser.parseColor(attributeValue));
         } catch (IllegalArgumentException e) {
           Log.w(TAG, "failed parsing background value: '" + attributeValue + "'");
         }
         break;
       case TtmlNode.ATTR_TTS_COLOR:
         style = createIfNull(style);
         try {
           style.setColor(TtmlColorParser.parseColor(attributeValue));
         } catch (IllegalArgumentException e) {
           Log.w(TAG, "failed parsing color value: '" + attributeValue + "'");
         }
         break;
       case TtmlNode.ATTR_TTS_FONT_FAMILY:
         style = createIfNull(style).setFontFamily(attributeValue);
         break;
       case TtmlNode.ATTR_TTS_FONT_SIZE:
         // TODO: handle size
         break;
       case TtmlNode.ATTR_TTS_FONT_WEIGHT:
         style = createIfNull(style).setBold(TtmlNode.BOLD.equalsIgnoreCase(attributeValue));
         break;
       case TtmlNode.ATTR_TTS_FONT_STYLE:
         style = createIfNull(style).setItalic(TtmlNode.ITALIC.equalsIgnoreCase(attributeValue));
         break;
       case TtmlNode.ATTR_TTS_TEXT_ALIGN:
         switch (Util.toLowerInvariant(attributeValue)) {
           case TtmlNode.LEFT:
             style = createIfNull(style).setTextAlign(Layout.Alignment.ALIGN_NORMAL);
             break;
           case TtmlNode.START:
             style = createIfNull(style).setTextAlign(Layout.Alignment.ALIGN_NORMAL);
             break;
           case TtmlNode.RIGHT:
             style = createIfNull(style).setTextAlign(Layout.Alignment.ALIGN_OPPOSITE);
             break;
           case TtmlNode.END:
             style = createIfNull(style).setTextAlign(Layout.Alignment.ALIGN_OPPOSITE);
             break;
           case TtmlNode.CENTER:
             style = createIfNull(style).setTextAlign(Layout.Alignment.ALIGN_CENTER);
             break;
         }
         break;
       case TtmlNode.ATTR_TTS_TEXT_DECORATION:
         switch (Util.toLowerInvariant(attributeValue)) {
           case TtmlNode.LINETHROUGH:
             style = createIfNull(style).setLinethrough(true);
             break;
           case TtmlNode.NO_LINETHROUGH:
             style = createIfNull(style).setLinethrough(false);
             break;
           case TtmlNode.UNDERLINE:
             style = createIfNull(style).setUnderline(true);
             break;
           case TtmlNode.NO_UNDERLINE:
             style = createIfNull(style).setUnderline(false);
             break;
         }
         break;
       default:
         // ignore
         break;
     }
   }
   return style;
 }