Пример #1
0
  private void load_snap_from_xml(Element snap, StructureCollection structs, LinkedList tempList)
      throws VisualizerLoadException {
    Iterator iterator = snap.getChildren().iterator();

    if (!iterator.hasNext()) throw new VisualizerLoadException("Ran out of elements");

    structs.loadTitle((Element) (iterator.next()), tempList, this);
    structs.calcDimsAndStartPts(tempList, this);

    if (!iterator.hasNext()) return;
    Element child = (Element) iterator.next();

    if (child.getName().compareTo("doc_url") == 0) {
      // load the doc_url
      add_a_documentation_URL(child.getText().trim());
      if (!iterator.hasNext()) return;
      child = (Element) iterator.next();
    }

    if (child.getName().compareTo("pseudocode_url") == 0) {
      // load the psuedocode_url
      add_a_pseudocode_URL(child.getText().trim());
      if (!iterator.hasNext()) return;
      child = (Element) iterator.next();
    }

    if (child.getName().compareTo("audio_text") == 0) {
      // load the psuedocode_url
      add_audio_text(child.getText().trim());
      if (!iterator.hasNext()) return;
      child = (Element) iterator.next();
    }

    // create & load the individual structures, hooking them into the StructureCollection.
    // linespernode : calculate it at end of loadStructure call
    while (child.getName().compareTo("question_ref") != 0) {
      StructureType child_struct = assignStructureType(child);
      child_struct.loadStructure(child, tempList, this);
      structs.addChild(child_struct);

      if (!iterator.hasNext()) return;
      child = (Element) iterator.next();
    }

    if (child.getName().compareTo("question_ref") == 0) {
      // set up question ref
      add_a_question_xml(child.getAttributeValue("ref"));
    } else
      // should never happen
      throw new VisualizerLoadException(
          "Expected question_ref element, but found " + child.getName());

    if (iterator.hasNext()) {
      child = (Element) iterator.next();
      throw new VisualizerLoadException(
          "Found " + child.getName() + " when expecting end of snap.");
    }
  } // load_snap_from_xml
Пример #2
0
  // createericlist with a String signature is used to process a String
  // containing a sequence of GAIGS structures
  // createericlist creates the list of graphics primitives for these snapshot(s).
  // After creating these lists, that are then appended to l, the list of snapshots,
  // Also must return the number of snapshots loaded from the string
  public /*synchronized*/ int createericlist(String structString) {
    int numsnaps = 0;
    if (debug) System.out.println("In create eric " + structString);
    StringTokenizer st = new StringTokenizer(structString, "\r\n");
    while (st.hasMoreTokens()) {
      numsnaps++; // ??
      String tempString;
      LinkedList tempList = new LinkedList();
      StructureType strct;
      tempString = st.nextToken();
      try {
        boolean headers = true;
        while (headers) {
          headers = false;
          if (tempString.toUpperCase().startsWith("VIEW")) {
            tempString = HandleViewParams(tempString, tempList, st);
            headers = true;
          }
          if (tempString.toUpperCase().startsWith("FIBQUESTION ")
              || tempString.toUpperCase().startsWith("MCQUESTION ")
              || tempString.toUpperCase().startsWith("MSQUESTION ")
              || tempString.toUpperCase().startsWith("TFQUESTION ")) {
            tempString = add_a_question(tempString, st);
            headers = true;
          }
        }

        if (tempString.toUpperCase().equals("STARTQUESTIONS")) {
          numsnaps--; // questions don't count as snapshots
          readQuestions(st);
          break;
        }
        // After returning from HandleViewParams, tempString should now contain
        // the line with the structure type and possible additional text height info
        StringTokenizer structLine = new StringTokenizer(tempString, " \t");
        String structType = structLine.nextToken();
        if (debug) System.out.println("About to assign structure" + structType);
        strct = assignStructureType(structType);
        strct.loadTextHeights(structLine, tempList, this);
        strct.loadLinesPerNodeInfo(st, tempList, this);

        strct.loadTitle(st, tempList, this);
        strct.loadStructure(st, tempList, this);
        strct.calcDimsAndStartPts(tempList, this);
        strct.drawTitle(tempList, this);
        strct.drawStructure(tempList, this);
      } catch (VisualizerLoadException e) {
        System.out.println(e.toString());
      }
      //             // You've just created a snapshot.  Need to insure that "**" is appended
      //             // to the URLList for this snapshot IF no VIEW ALGO line was parsed in the
      //             // string for the snapshot.  This could probably best be done in the
      //             // HandleViewParams method
      list_of_snapshots.append(tempList);
      Snaps++;
    }
    return (numsnaps);
  } // createericlist(string)