Completed parsing of multi-layer scene XML files.
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@123 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
@@ -1,5 +1,5 @@
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//
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// $Id: DisplayMisoSceneImpl.java,v 1.13 2001/07/24 22:52:02 shaper Exp $
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// $Id: DisplayMisoSceneImpl.java,v 1.14 2001/07/25 01:38:08 shaper Exp $
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package com.threerings.miso.scene;
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@@ -174,7 +174,7 @@ public class Scene
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/** The unique scene id. */
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protected short _sid;
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/** Hot-spot zone points */
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/** Hot-spot zone points. */
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protected Point _hotspots[];
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/** Exit points to different scenes. */
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@@ -1,5 +1,5 @@
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//
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// $Id: XMLSceneParser.java,v 1.2 2001/07/24 22:52:02 shaper Exp $
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// $Id: XMLSceneParser.java,v 1.3 2001/07/25 01:38:08 shaper Exp $
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package com.threerings.miso.scene.xml;
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@@ -35,35 +35,29 @@ public class XMLSceneParser extends DefaultHandler
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String qName, Attributes attributes)
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{
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_tag = qName;
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if (_tag.equals("layer")) {
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_scLnum = getInt(attributes.getValue("lnum"));
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} else if (_tag.equals("row")) {
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_scRownum = getInt(attributes.getValue("rownum"));
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// get the column start value if present
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String strcs = attributes.getValue("colstart");
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if (strcs != null) _scColstart = getInt(strcs);
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}
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}
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public void endElement (String uri, String localName, String qName)
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{
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// construct the scene object on tag close
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if (qName.equals("scene")) {
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_scene = new Scene(_tilemgr, Scene.SID_INVALID);
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Log.info("Constructed parsed scene [scene=" + _scene + "].");
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}
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// we know we've received the entirety of the character data
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// for the elements we're tracking at this point, so proceed
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// with saving off element values for use when we construct
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// the scene object.
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if (qName.equals("name")) {
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_scName = _chars.toString().trim();
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// note that we're not within a tag to avoid considering any
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// characters during this quiescent time
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_tag = null;
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}
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public void characters (char ch[], int start, int length)
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{
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// bail if we're not within a meaningful tag
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if (_tag == null) return;
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String str = String.copyValueOf(ch, start, length);
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// store the value associated with the current tag for use
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// when we construct the tileset object.
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if (_tag.equals("name")) {
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_scName = str;
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} else if (_tag.equals("version")) {
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int version = getInt(str);
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} else if (qName.equals("version")) {
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int version = getInt(_chars.toString());
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if (version < 0 || version > Scene.VERSION) {
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Log.warning(
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"Unrecognized scene file format version, will attempt " +
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@@ -72,19 +66,102 @@ public class XMLSceneParser extends DefaultHandler
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", known_version=" + Scene.VERSION + "].");
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}
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} else if (_tag.equals("hotspots")) {
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_scHotspots = toPointArray(StringUtil.parseIntArray(str));
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} else if (qName.equals("hotspots")) {
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int vals[] = StringUtil.parseIntArray(_chars.toString());
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_scHotspots = toPointArray(vals);
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} else if (_tag.equals("exits")) {
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_scExits = toExitPointArray(StringUtil.parseStringArray(str));
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} else if (qName.equals("exits")) {
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String vals[] = StringUtil.parseStringArray(_chars.toString());
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_scExits = toExitPointArray(vals);
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} else if (qName.equals("row")) {
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if (_scLnum == Scene.LAYER_BASE) {
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readRowData(_chars.toString());
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} else {
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readSparseRowData(_chars.toString());
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}
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} else if (qName.equals("scene")) {
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// construct the scene object on tag close
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_scene = new Scene(_tilemgr, Scene.SID_INVALID, _scName,
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_scHotspots, _scExits, _scTiles);
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Log.info("Constructed parsed scene [scene=" + _scene + "].");
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}
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// TODO:
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// tiles
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// layer lnum="0"
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// row <rownum="X">
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// layer lnum="1"
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// row <rownum="X" colstart="Y">
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// note that we're not within a tag to avoid considering any
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// characters during this quiescent time
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_tag = null;
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// and clear out the character data we're gathering
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_chars = new StringBuffer();
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}
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public void characters (char ch[], int start, int length)
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{
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// bail if we're not within a meaningful tag
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if (_tag == null) return;
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_chars.append(ch, start, length);
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}
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/**
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* Given a string of comma-delimited tuples as (tileset id, tile
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* id), populate the <code>_scTiles</code> tile array with tiles
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* to suit.
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*
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* @param data the tile data.
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*/
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protected void readRowData (String data)
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{
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int[] vals = StringUtil.parseIntArray(data);
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// make sure we have a suitable number of tiles
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int validLen = Scene.TILE_WIDTH * 2;
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if (vals.length != validLen) {
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Log.warning(
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"Invalid number of tiles in full row data set, skipping set " +
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"[rownum=" + _scRownum + ", len=" + vals.length +
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", valid_len=" + validLen + ", data=" + data + "].");
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return;
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}
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// create the tile objects in the tile array
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for (int xx = 0; xx < vals.length; xx += 2) {
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Tile tile = _tilemgr.getTile(vals[xx], vals[xx + 1]);
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_scTiles[xx / 2][_scRownum][_scLnum] = tile;
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}
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}
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/**
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* Given a string of comma-delimited tuples as (tileset id, tile
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* id) and having previously set up the <code>_scRownum</code> and
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* <code>_scColstart</code> member data by retrieving the
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* attribute values when the <code>row</code> element tag was
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* noted, this method then proceeds to populate the
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* <code>_scTiles</code> tile array with tiles to suit.
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*
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* @param data the tile data.
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*/
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protected void readSparseRowData (String data)
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{
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int[] vals = StringUtil.parseIntArray(data);
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// make sure we have a suitable number of tiles
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if ((vals.length % 2) == 1) {
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Log.warning(
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"Odd number of tiles in sparse row data set, skipping set " +
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"[rownum=" + _scRownum + ", colstart=" + _scColstart +
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", len=" + vals.length + "].");
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return;
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}
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// create the tile objects in the tile array
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Log.info("Sparse row data [colstart=" + _scColstart +
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", rownum=" + _scRownum + ", lnum=" + _scLnum + "].");
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for (int xx = 0; xx < vals.length; xx += 2) {
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Tile tile = _tilemgr.getTile(vals[xx], vals[xx + 1]);
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_scTiles[_scColstart + (xx / 2)][_scRownum][_scLnum] = tile;
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}
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}
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/**
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@@ -178,8 +255,13 @@ public class XMLSceneParser extends DefaultHandler
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FileInputStream fis = new FileInputStream(fname);
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BufferedInputStream bis = new BufferedInputStream(fis);
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// read the XML input stream and construct the scene object
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// prepare temporary data storage for parsing
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_chars = new StringBuffer();
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_scene = null;
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int width = Scene.TILE_WIDTH, height = Scene.TILE_HEIGHT;
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_scTiles = new Tile[width][height][Scene.NUM_LAYERS];
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// read the XML input stream and construct the scene object
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XMLUtil.parse(this, bis);
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// return the final scene object
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@@ -205,9 +287,11 @@ public class XMLSceneParser extends DefaultHandler
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/** The tile manager object for use in constructing scenes. */
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protected TileManager _tilemgr;
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// temporary storage of scene object values
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// temporary storage of scene object values and data
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protected StringBuffer _chars;
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protected String _scName;
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protected Point[] _scHotspots;
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protected ExitPoint[] _scExits;
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protected Tile[][][] _scTiles;
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protected int _scLnum, _scRownum, _scColstart;
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}
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