cleans interfaces up

plugins/com.minres.scviewer.database/src/com/minres/scviewer/database/BitVector.java

@@ -33,6 +33,37 @@ public class BitVector implements IEvent {
 			packedValues[i] = 0;
 	}
 
+	public static BitVector fromString(int netWidth, String value){
+		BitVector bv = new BitVector(netWidth);
+		int stringIndex = 0;
+		for (int convertedIndex = netWidth -1; convertedIndex >=0; convertedIndex--) {
+			if(convertedIndex<value.length()) {
+				switch (value.charAt(stringIndex++)) {
+				case 'z':
+					bv.setValue(convertedIndex, BitValue.Z);
+					break;
+
+				case '1':
+					bv.setValue(convertedIndex, BitValue.ONE);
+					break;
+
+				case '0':
+					bv.setValue(convertedIndex, BitValue.ZERO);
+					break;
+
+				case 'x':
+					bv.setValue(convertedIndex, BitValue.X);
+					break;
+
+				default:
+					bv.setValue(convertedIndex, BitValue.X);
+				}
+			} else {
+				bv.setValue(convertedIndex, BitValue.ZERO);
+			}
+		}
+		return bv;
+	}
 	/**
 	 * Sets the value.
 	 *

plugins/com.minres.scviewer.database/src/com/minres/scviewer/database/IWaveform.java

@@ -78,4 +78,11 @@ public interface IWaveform extends IHierNode {
 	 */
 	public int getRowCount();
 	
+	/**
+	 * Gets the width.
+	 *
+	 * @return the width
+	 */
+	public int getWidth();
+	
 }

plugins/com.minres.scviewer.database/src/com/minres/scviewer/database/IWaveformDbLoader.java

@@ -55,7 +55,7 @@ public interface IWaveformDbLoader {
 	 * @param inputFile the input file
 	 * @throws InputFormatException the input format exception
 	 */
-	public void load(IWaveformDb db, File inputFile) throws InputFormatException;
+	public void load(File inputFile) throws InputFormatException;
 
 	/**
 	 * Gets the max time.

plugins/com.minres.scviewer.database/src/com/minres/scviewer/database/internal/WaveformDb.java

@@ -135,7 +135,7 @@ public class WaveformDb extends HierNode implements IWaveformDb, PropertyChangeL
 				IWaveformDbLoader loader = loaderFactory.getLoader();
 				loader.addPropertyChangeListener(this);
 				try {
-					loader.load(this, inp);
+					loader.load(inp);
 				} catch (Exception e) {
 					LOG.error("error loading file "+inp.getName(), e);
 					retval=false;