/* TView.java  tensegrity viewer

   History:

   13 Jun 08  Only act on SELECTED state changes for the ModelMenu.
   12 Jun 08  Do not implement ThreeDClient.  ThreeD constructor
              no longer requires client as arg.  Fine tune exception
              handling in TView.load() and TViewPgm.load() by resetting
              ThreeD if IOException occurs when stream is opened.  Replace
              all reset functions with resetMagnifyBar, and now it does
              not do anything with ThreeD.  Calling ThreeD.load handles
              resetting there.  Implement userMessage() as popup dialog
              and eliminate special handling for TViewPgm.
   06 Jun 08  Improve comments.
   05 Jun 08  Extract Choice information to separate ModelMenu class.  It
              now reads the label-filename pairs out of a file called
              "models.txt" in the directory where the model data is stored.
   03 Jun 08  Change "Aspension Tower" label to "Aspension Tower (Marcus)"
              so it is clearer that Jan Marcus is the author of this design.
              Re-order the aspensions so the towers come first.  Label the
              tetrahedrons with their authors, and re-order to match order
              in VRML viewer.
   19 May 08  Add "Aspension Tower II" and "Aspension Canary".  Change
              "Aspension Skylon" to "Aspension Skylon II" and refer to
              another data file.  "Aspension Tower" now refers to data
              for Jan's original structure, and "Aspension Tower II"
              refers to my variation.
   10 Mar 08  Add "Aspension Skylon".
   26 Dec 07  Add "Split-Level Prism II" and "Tetrahedral Prisms".  Rename
              "Diamond-Shaped Tensegrity" as "Diamond-Shaped Prisms" and
              "Split-Level Prism" as "Split-Level Prism I".
   07 Dec 07  Use different data files for "Wishbone Tensegrity" and
              "Diamond-Shaped Tensegrity".
   21 Nov 07  Add "Split-Level Prism", "Wishbone Tensegrity" and
              "Diamond-Shaped Tensegrity".
   11 Sep 07  Add "Aspension Tower".
   15 Aug 07  Add "3-Stage X-Module Column".  Use Frame.setVisible() instead
              of deprecated show().
   13 Aug 07  Add "Dodecahedron with X-Column Edges".
   29 Jun 07  Change "Val Gómez module" to "Gómez Jáuregui module".
   16 Feb 07  Add "Perspective Prism".
   10 Aug 06  Close the URL InputStream after reading the data.  If an
              exception occurs, send a user message.  Close the
              FileInputStream after reading the data.
   01 Aug 06  Reduce initial size from 700x700 to 600x600.  Give the value
              a label, INITIAL_DIM.
   12 Jul 06  Remove comment about "puzzle" which doesn't make sense to me
              anymore:  "Would like to remove updateBuffer() from
              ThreeD.load() so I can just load data in init() using load()
              and paint the picture in start() using ThreeD.updateBuffer().
              This would save on the seemingly unnecessary task of loading
              the model data when the applet is restarted.  All I get is a
              blank picture though."
   12 Jun 06  Remove last arg to setMagnification -- no longer needed.
              Don't check the source in itemStateChanged() since there's
              only one.  Make load() and handleModelSelection() public.
              With the changes to this file, ThreeD.java and TViewJ3D.java,
              TView.java and TViewJ3D.java are now more similar.
   06 Jun 06  Decrease max magnification to 8X.  Feel less power but better
              control over the power that's there.
   01 Jun 06  Increase max magnification to 12X.  Feel the power.  Use
              new doUpdate arg for ThreeD.setMagnification().  Simplify
              magnification updates.
   31 May 06  ThreeD.startRotation() is now startDrag().  Implement drag
              scrolling.
   30 May 06  Use float constant instead of casting double constant to float.
              updateMagnification has been renamed to incrementMagnification.
              Change resetMagnifyBar to resetMagnification, and have it take
              care of talking to m_threed.  Create resetRotation with
              similar functionality in rotation domain.
   26 May 06  Add drag rotation.
   25 May 06  Remove rotation components and adjust others to accommodate.
   17 Apr 06  Add "2v Icosa Sphere" and put "Octa" adjective on labels for
              all the other double-layer domes and spheres.
   17 Mar 06  Add a to-do item.
   15 Mar 06  Add "Emmerich's Prism" and a to-do item.  Change
              "3-Fold Emmerich-Style Prism" to
              "Emmerich's Prism (variation)".
   13 Mar 06  Add "Tensegrity Tetrahedron 2", "T-Tetra 2 (variation)" and
              "Tensegrity Tetrahedron 3".
   08 Feb 06  Add "Skew Prism Arch".
   07 Feb 06  Add "Bouncy Mast (spiraling)" and "Bouncy Mast (alternating)".
   31 Jan 06  Add "T-Cuboctahedron".
   27 Jan 06  Add "Skew Tensegrity".
   30 Dec 05  Add "Octahelix".
   27 Dec 05  Add "Thirteen Great Circles".
   06 Dec 05  Add a couple skew 5-prisms.  Rename "Helix" and
              "Double Helix" to "Tetrahelix" and "Double Tetrahelix"
              respectively (thanks to Tim Tyler for pointing out
              the terminology deficiency).
   21 Nov 05  Add 12-Stage Torus.
   20 Oct 05  Add Eight-Stage Zig-Zag Arch and Tensegrity Tetrahedron.
   21 Sep 05  Replace deprecated API constructs.
   20 Sep 05  Incorporate TViewPgm.java and rename from TViewApplet.java
              to TView.java.
   28 Mar 05  Add 3-Fold Orthogonal Prism, 3-Fold Emmerich-Style Prism,
              6-Fold Ortho-Girdled Prism, Three 6-Fold Prisms Merged,
              Skew Eight-Prism, 4-Fold Obelisk, X-Module Bean Teepee,
              X-Module Torus 1, X-Module Torus 2 and X-Module Arch.
   23 Nov 00  Add 4v Tetrahedron Aligned Diamond Tensegrity.
   12 Oct 99  Add single helix.
   21 Jun 99  Remove tomato cage.  Add second obelisk.
   15 Jun 99  Added equi-tendoned tensegrity prisms (3x, 6x and 9x).
   24 Mar 99  Added javadoc comments.  Changed name of m_dim to m_axis.
              Centered rotate Scrollbar on 0.  Changed name from TView
              to TViewApplet.
   06 Mar 99  Check evt.evt for Event on same object when fielding
              Scrollbar events.
   24 Feb 99  Substitute ThreeD.Client for ThreeDClient.
   20 Oct 98  Reorganize model labels/filenames.  Sup up equality tests.
   07 Oct 98  Added userMessage() and changed load() to accommodate
              new interface to ThreeD.
   26 Aug 98  Rewrite to incorporate restructuring of ThreeD class.
              Init rotate/magnify value in init() and not in start().
              Now if user returns to page without reloading, model
              and GUI are same state as when they left.
   21 Aug 98  Use currently selected model in start() rather than always
              using tetra.
   17 Jul 98  Don't process Scrollbar events when value hasn't changed.
   29 Jun 98  Created.
*/

import java.awt.*;
import java.awt.event.*; // for WindowAdapter and WindowEvent
import java.io.*;
import java.net.URL;

/**
  GUI for viewing wireframe structures -- mostly tensegrities
  with single-point hubs

  @author Bob Burkhardt
*/
public class TView extends java.applet.Applet
  implements ItemListener, AdjustmentListener,
    MouseListener, MouseMotionListener {
  ThreeD m_threed;
  Scrollbar m_magnifybar;
  ModelMenu m_select_model;

  /**
    Name of file where label-filename data is stored.
   */
  static final String LABEL_FILENAME = "models.txt";
  /**
    Name of (default) directory where model data files are stored.
    Only used by TView applet, not by TViewPgm.
   */
  static final String MODEL_DATA_DIR = "models";
  /**
    How many integer units to divide the zoom Scrollbar's range into.
    Scrollbar is set so its output value ranges from 0 to -SCROLL_RESOLUTION.
    */
  static final int SCROLL_RESOLUTION = 1000;
  /**
    How wide to make the zoom Scrollbar bubble.  Should be some smaller
    percentage of the SCROLL_RESOLUTION value and definitely not
    bigger than it.
    */
  static final int SCROLL_BUBBLE_WIDTH = 50;
  /**
    The maximum magnification that is allowed.
    The minimum is none (1.0f).
    */
  static final float MAX_MAGNIFICATION = 8.0f;
  /**
    Amount the figure is currently being magnified.  Varies from
    0 (no magnification) to -SCROLL_RESOLUTION (MAX_MAGNIFICATION).
    */
  int m_magnify_value;
  /**
    Initial dimension of Canvas square.
    */
  static final int INITIAL_DIM = 600;
  /**
    Indicate whether left-mouse-button drag is in progress.  MOUSE_PRESSED
    indicates drag in progress; otherwise, MOUSE_RELEASED.
    */
  int m_drag = MouseEvent.MOUSE_RELEASED;

  /**
   Overload standard Applet initialization procedure.
   */
  public void init() {
    try {
      URL url = new URL(getDocumentBase(),
                        MODEL_DATA_DIR + "/" + LABEL_FILENAME);
      InputStream is = url.openStream();
      init(is);
    }
    catch (Exception e) {
      userMessage(e.toString());
    }
  }

  /**
   Initialize the GUI.

   @param is  InputStream containing data for ModelMenu.
   */
  public void init(InputStream is) {
    setLayout(new BorderLayout());
    // parameters are set so the top of the scrollbar represents the
    // maximimum magnification rather than the usual scrolling situation
    // where the top represents minimum scroll -- Scrollbar value is
    // negated before use.  The max value must be adjusted for the
    // size of the thumb.
    m_magnifybar =
	new Scrollbar(Scrollbar.VERTICAL, 0, SCROLL_BUBBLE_WIDTH,
		      -SCROLL_RESOLUTION, SCROLL_BUBBLE_WIDTH);
    m_magnifybar.addAdjustmentListener(this);
    add("East", m_magnifybar);
    try {
      m_select_model = new ModelMenu(is);
      m_select_model.addItemListener(this);
    }
    catch (Exception e) {
      userMessage(e.toString());
    }
    Panel p = new Panel();
    p.setLayout(new FlowLayout());
    if (m_select_model != null) p.add(m_select_model);
    add("North", p);
    m_threed = new ThreeD();
    m_threed.addMouseListener(this);
    m_threed.addMouseMotionListener(this);
    add("Center", m_threed);
    resetMagnifyBar();
  }

  /**
   Overload standard Applet start procedure.
   */
  public void start() {
    handleModelSelection();
  }

  /**
    Display a status message to the user.

    @param msg String containing message to be displayed.
    */
  public void userMessage(String msg) {
    NotifyDialog dialog = new NotifyDialog(msg);
    dialog.setSize(INITIAL_DIM, INITIAL_DIM/4);
    dialog.setVisible(true);
  }

  /**
    Create data stream for specified model and send to m_threed.
    Applet version.

    @param model_name unqualified name of file containing model data
    */
  public void load(String model_name) {
    InputStream is = null;
    try {
      URL url = new URL(getDocumentBase(),
                        MODEL_DATA_DIR + "/" + model_name);
      is = url.openStream();
    } catch (Exception e) {
      m_threed.reset();
      userMessage(e.toString());
      return;
    }
    if (is != null) try {
      m_threed.load(is);
      is.close();
    } catch (Exception e) { userMessage(e.toString()); }
  }

  /**
    Load the model corresponding to currently selected model.
    */
  public void handleModelSelection() {
    resetMagnifyBar();
    load(m_select_model.getSelectedFilename());
  }

  /**
    Handle Choice/ModelMenu events.  Implements ItemListener.

    @param evt Data pertaining to this event.
    */
  public void itemStateChanged(ItemEvent evt) {
    if (evt.getStateChange() == ItemEvent.SELECTED)
      handleModelSelection();
  }

  /**
    Handle Scrollbar events.  Implements AdjustmentListener.

    @param evt Data pertaining to this event.
    */
  public void adjustmentValueChanged(AdjustmentEvent evt) {
    int old_value = m_magnify_value;
    m_magnify_value = m_magnifybar.getValue();
    float max = (float)-SCROLL_RESOLUTION;
    float int_mag = (float)m_magnify_value;
    if (old_value != m_magnify_value)
      m_threed.setMagnification(1.0f + (MAX_MAGNIFICATION - 1.0f)*int_mag/max);
  }

  /**
    Watch for presses of the left mouse button, and update state
    accordingly (part of MouseListener interface).

    @param evt Data pertaining to this event.
    */
  public void mousePressed(MouseEvent evt)
  {
    if (evt.getButton() == MouseEvent.BUTTON1)
    {
      m_drag = MouseEvent.MOUSE_PRESSED;
      m_threed.startDrag(evt.getX(), evt.getY());
    }
  }

  /**
    Watch for presses of the left mouse button, and update state
    accordingly (part of MouseListener interface).

    @param evt Data pertaining to this event.
    */
  public void mouseReleased(MouseEvent evt)
  {
    if (evt.getButton() == MouseEvent.BUTTON1)
      m_drag = MouseEvent.MOUSE_RELEASED;
  }

  /**
    Implement this for the MouseListener interface, but ignore
    the events.
    */
  public void mouseClicked(MouseEvent evt) { }

  /**
    Implement this for the MouseListener interface, but ignore
    the events.
    */
  public void mouseEntered(MouseEvent evt) { }

  /**
    Implement this for the MouseListener interface, but ignore
    the events.
    */
  public void mouseExited(MouseEvent evt) { }

  /**
    Watch for mouse movements and adjust rotation accordingly
    (part of MouseMotionListener interface).

    @param evt Data pertaining to this event.
    */
  public void mouseDragged(MouseEvent evt)
  {
    if (m_drag == MouseEvent.MOUSE_PRESSED)
      if ((evt.getModifiersEx() & InputEvent.CTRL_DOWN_MASK) != 0)
	m_threed.updateShift(evt.getX(), evt.getY());
      else
        m_threed.updateRotation(evt.getX(), evt.getY());
  }

  /**
    Implement this for the MouseMotionListener interface, but ignore
    the events.
    */
  public void mouseMoved(MouseEvent evt) { }

  /**
    Put magnification Scrollbar into initial state.
    */
  private void resetMagnifyBar() {
    m_magnifybar.setValue(0);
    m_magnify_value = 0;
  }

}

class NotifyDialog extends Frame implements ActionListener
{
  Label m_message;
  Button m_dismiss;

  NotifyDialog(String message)
  {
    super("Problem Report");
    setLayout(new BorderLayout());
    m_message = new Label(message);
    m_dismiss = new Button("Dismiss");
    m_dismiss.addActionListener(this);
    add("Center", m_message);
    Panel p = new Panel();
    p.add(m_dismiss);
    add("South", p);
  }

  public void actionPerformed(ActionEvent evt) {
    setVisible(false);
  }
}

/**
 Provides for a stand-alone (app rather than applet) instance of the
 tensegrity viewer.  It builds on the Applet overriding in the few situations
 where different facilities are required.
 */
class TViewPgm extends TView {
  String m_model_dir;

  /**
   Create a tensegrity viewer instance.

   @param model_dir  name of directory where model data files and
                     text file containing label-filename list
                     can be found.

   @see #LABEL_FILENAME
   */
  public TViewPgm(String model_dir) {
    m_model_dir = model_dir;
  }

  /**
   Override the design for Applet with something that gets streams from
   Files rather than URLs.
   */
  public void init() {
    FileInputStream is = null;
    File label_file =
      new File(m_model_dir + File.separator + LABEL_FILENAME);
    try {
      is = new FileInputStream(label_file);
    }
    catch (Exception e) {
      userMessage("init: " + e.toString());
    }
    super.init(is);
  }

  /**
    Create data stream for specified model and send to m_threed.
    Stand-alone app version.

    @param model_name unqualified name of file containing model data
   */
  public void load(String model_name) {
    FileInputStream is = null;
    File model_file =
      new File(m_model_dir + File.separator + model_name);
    try {
      is = new FileInputStream(model_file);
    } catch (Exception e) {
      m_threed.reset();
      userMessage("load: " + e.toString());
      return;
    }
    if (is != null) try {
      m_threed.load(is);
      is.close();
    } catch (Exception e) { userMessage("load: " + e.toString()); }
  }

  /**
    Requires the path to the directory containing the model data
    as an argument.
    */
  public static void main(String args[]) {
    if (args.length != 1) {
      System.out.println("Usage: TViewPgm MODEL_DIR");
      System.exit(1);
    }
    Frame f = new Frame("Tensegrity Viewer");
    TView viewer = new TViewPgm(args[0]);
    viewer.init();
    f.add(viewer);
    f.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    f.setSize(INITIAL_DIM, INITIAL_DIM);
    f.setVisible(true);
    viewer.start();
  }
}
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                        {
                            var areaName = pattern.exec(n.childNodes[i].nodeValue)[1];
                            nodes[areaName] = n;
                        }
                        else if (n.childNodes[i].nodeType === 1)
                        {
                            getNodesThatHaveComments(n.childNodes[i], pattern);
                        }
                    }
                }
            }(document.body, regexPattern));

            for (var i in preferredNodesList)
            {
                if (nodes[preferredNodesList[i]])
                {
                    if( isTrellix && nodes[preferredNodesList[i]].parentNode.parentNode.parentNode.parentNode )
                    {
                        nodesA.push(nodes[preferredNodesList[i]].parentNode.parentNode.parentNode.parentNode);
                    }
                    else
                    {
                        nodesA.push( nodes[preferredNodesList[i]] );
                    }
                }
            }
            return nodesA;
        }
        
        
        var properNode = null;
        var areaNodes = getCommentNodes( new RegExp( '^area Type="area_(\\w+)"' ) );

        for (var i = 0; i < areaNodes.length; i++)
        {
            var a = parseInt(getComputedStyle(areaNodes[i]).width);
            if ((a >= 300) && (a <= 400))
            {
                properNode = areaNodes[i];
                break;
            }
        }


        var propertyName = getMetaContent("property") || false;
        if( isTrellix && (properNode) )
        {
            e.src = '/adm/ad/injectAd.iframe.html';
            properNode.insertBefore(e, properNode.firstChild);
        }
        else if( isTrellix && !( properNode ) ) // Slap the ad eventhought there is no alocated slot
        {
            e.src = '/adm/ad/injectAd.iframe.html';
            e.style.cssFloat = 'none';
            var cdiv = document.createElement('div');
            cdiv.style = "width:300px;margin:10px auto;";
            cdiv.appendChild( e );
            b.insertBefore(cdiv, b.lastChild);
        }
        else if( !isBlokedByDomain( location.href ) )
        {
            var injF = document.createElement('iframe');
            injF.style.border = '0';
            injF.style.margin = 0;
            injF.style.display = 'block';
            injF.style.cssFloat = 'none';
            injF.style.height = '254px';
            injF.style.overflow = 'hidden';
            injF.style.padding = 0;
            injF.style.width = '300px';
            injF.src = '/adm/ad/injectAd.iframe.html';

            if( b && ( !isTrellix || ( typeof isTrellix == "undefined" ) ) ) // All other tripod props
            {
                var cdiv = document.createElement('div');
                cdiv.style = "width:300px;margin:10px auto;";
                cdiv.appendChild( injF );
                b.insertBefore(cdiv, b.lastChild);
            } 
        }
  }( document.isTrellix ));
}

</script>

<div id="tb_container" style="background:#DFDCCF; border-bottom:1px solid #393939; position:relative; z-index:999999999!important">
<!--form name="search" onSubmit="return searchit()" id='header_search' >
<input type="text" placeholder="Search" size=30 name="search2" value="">
<input type="button" value="Go!" onClick="searchit()">
</form>
<style>
form#header_search {
    width: 916px;
    margin: 0 auto 8px;
    position: relative;
}


form#header_search input {
    height: 40px;
    font-size: 14px;
    line-height: 40px;
    padding: 0 8px;
    box-sizing: border-box;
    background: #F4F2E9;
    border: 1px solid #BBB8B8;
    transition: background-color 300ms ease-out,
                color 300ms ease;
}

form#header_search input[type="text"] {
    width: 100%;
}
form#header_search input[type="text"]:focus {
    border-color: #A2D054;
    background-color: #fff;
    box-shadow: 0 0px 12px -4px #A2D054;
}



form#header_search input[type="button"] {
    position: absolute;
    top: 1px;
    right: 1px;
    opacity: 1;
    background: #DFDCCF;
    color: #463734;
    width: 125px;
    cursor: pointer;
    height: 38px;
    border: none;
}
form#header_search input[type="text"]:focus ~ input[type='button']:hover,
form#header_search input[type='button']:hover {
    background-color: #A5CE56;
    color: #fff;
}
form#header_search input[type="text"]:focus ~ input[type='button'] {
    background-color: #52AEDF;
    color: #fff;
}

</style>

<script>
function searchit(){
    
    // determine environment 
    var search_env 
    if (lycos_ad_www_server.indexOf(".pd.") > -1) {
       search_env = 'http://search51.pd.lycos.com/a/';
    } else if (lycos_ad_www_server.indexOf(".qa.") > -1) {
       search_env = 'http://search51.qa.lycos.com/a/';
    } else {
       search_env = 'http://search51.lycos.com/a/';
    }

var search_term = encodeURIComponent(document.search.search2.value)
var search_url = search_env+search_term;
window.open(search_url);

return false
}
</script-->
<style>
    .adCenterClass{margin:0 auto}
</style>
<div id="tb_ad" class="adCenterClass" style="display:block!important; overflow:hidden; width:916px;">

<div id="ad_container" style="display:block!important; float:left; width:728px ">
<script type="text/javascript">
if (typeof lycos_ad !== "undefined" && "leaderboard" in lycos_ad) {
  document.write(lycos_ad['leaderboard']);
}
</script>
</div>
</div>
</div>
<script type="text/javascript">
if (typeof lycos_ad !== "undefined" && "slider" in lycos_ad) {
  document.write(lycos_ad['slider']);
}
</script> <!-- added 7/22 -->
<div id="FooterAd" style="background:#DFDCCF; border-top:1px solid #393939; clear:both; display:none; width:100%!important; position:relative; z-index:999999!important; height:90px!important"> 
<div class="adCenterClass" style="display:block!important; overflow:hidden; width:916px;">
<div id="footerAd_container" style="display:block!important; float:left; width:728px">
<iframe id="lycosFooterAdiFrame" style="border:0; display:block; float:left; height:96px; overflow:hidden; padding:0; width:750px"></iframe>
</div>
</div>
</div>