Esempio n. 1
0
  /**
   * Creates the tool context denoting the range of samples that should be analysed by a tool.
   *
   * @return a tool context, never <code>null</code>.
   */
  private ToolContext createToolContext() {
    int startOfDecode = -1;
    int endOfDecode = -1;

    final int dataLength = this.dataContainer.getValues().length;
    if (this.dataContainer.isCursorsEnabled()) {
      if (this.dataContainer.isCursorPositionSet(0)) {
        final Long cursor1 = this.dataContainer.getCursorPosition(0);
        startOfDecode = this.dataContainer.getSampleIndex(cursor1.longValue()) - 1;
      }
      if (this.dataContainer.isCursorPositionSet(1)) {
        final Long cursor2 = this.dataContainer.getCursorPosition(1);
        endOfDecode = this.dataContainer.getSampleIndex(cursor2.longValue()) + 1;
      }
    } else {
      startOfDecode = 0;
      endOfDecode = dataLength;
    }

    startOfDecode = Math.max(0, startOfDecode);
    if ((endOfDecode < 0) || (endOfDecode >= dataLength)) {
      endOfDecode = dataLength - 1;
    }

    return new DefaultToolContext(startOfDecode, endOfDecode);
  }
Esempio n. 2
0
 /** @see nl.lxtreme.ols.api.tools.ToolContext#getLength() */
 @Override
 public int getLength() {
   return Math.max(0, this.endSampleIdx - this.startSampleIdx);
 }