add file version info

improve image serialization
serialize points referenced in inches

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/core/Project.java

@@ -11,6 +11,8 @@ import org.diylc.core.annotations.PositiveMeasureValidator;
 import org.diylc.core.measures.Size;
 import org.diylc.core.measures.SizeUnit;
 
+import com.diyfever.gui.update.VersionNumber;
+
 /**
  * Entity class that defines a project. Contains project properties and a
  * collection of components.This class is serialized to file. Some filed getters
@@ -27,6 +29,8 @@ public class Project implements Serializable {
 	public static Size DEFAULT_HEIGHT = new Size(21d, SizeUnit.cm);
 	public static Size DEFAULT_GRID_SPACING = new Size(0.1d, SizeUnit.in);
 
+	private VersionNumber fileVersion;
+	
 	private String title;
 	private String author;
 	private String description;
@@ -123,6 +127,14 @@ public class Project implements Serializable {
 	public Set<Integer> getLockedLayers() {
 		return lockedLayers;
 	}
+	
+	public VersionNumber getFileVersion() {
+		return fileVersion;
+	}
+	
+	public void setFileVersion(VersionNumber fileVersion) {
+		this.fileVersion = fileVersion;
+	}
 
 	@Override
 	public int hashCode() {

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/presenter/PointConverter.java

@@ -0,0 +1,41 @@
+package org.diylc.presenter;
+
+import java.awt.Point;
+
+import org.diylc.utils.Constants;
+
+import com.thoughtworks.xstream.converters.Converter;
+import com.thoughtworks.xstream.converters.MarshallingContext;
+import com.thoughtworks.xstream.converters.UnmarshallingContext;
+import com.thoughtworks.xstream.io.HierarchicalStreamReader;
+import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
+
+/**
+ * Serializes {@link Point} objects by converting coordinates from pixels to
+ * inches, thus avoiding the resolution to affect point placement.
+ * 
+ * @author Branislav Stojkovic
+ */
+public class PointConverter implements Converter {
+
+	@Override
+	public void marshal(Object object, HierarchicalStreamWriter writer, MarshallingContext context) {
+		Point point = (Point) object;
+		writer.addAttribute("x", Double.toString(1d * point.x / Constants.PIXELS_PER_INCH));
+		writer.addAttribute("y", Double.toString(1d * point.y / Constants.PIXELS_PER_INCH));
+	}
+
+	@Override
+	public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
+		double x = Double.parseDouble(reader.getAttribute("x"));
+		double y = Double.parseDouble(reader.getAttribute("y"));
+		return new Point((int) Math.round(x * Constants.PIXELS_PER_INCH), (int) Math.round(y
+				* Constants.PIXELS_PER_INCH));
+	}
+
+	@SuppressWarnings("unchecked")
+	@Override
+	public boolean canConvert(Class clazz) {
+		return Point.class.isAssignableFrom(clazz);
+	}
+}

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/presenter/Presenter.java

@@ -245,6 +245,7 @@ public class Presenter implements IPlugInPort {
 	public void saveProjectToFile(String fileName, boolean isBackup) {
 		LOG.info(String.format("saveProjectToFile(%s)", fileName));
 		try {
+			currentProject.setFileVersion(CURRENT_VERSION);
 			projectFileManager.serializeProjectToFile(currentProject, fileName, isBackup);
 		} catch (Exception ex) {
 			LOG.error("Could not save file", ex);

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/presenter/ProjectFileManager.java

@@ -68,6 +68,9 @@ public class ProjectFileManager {
 	}
 
 	private XStream xStream;
+	// Legacy deserializer for 3.0.1 through 3.0.7, loads Points referenced in
+	// pixels.
+	private XStream xStreamOld;
 
 	private String currentFileName = null;
 	private boolean modified = false;
@@ -78,6 +81,9 @@ public class ProjectFileManager {
 		super();
 		this.xStream = new XStream(new DomDriver());
 		xStream.autodetectAnnotations(true);
+		xStream.registerConverter(new PointConverter());
+		this.xStreamOld = new XStream(new DomDriver());
+		xStreamOld.autodetectAnnotations(true);
 		this.messageDispatcher = messageDispatcher;
 	}
 
@@ -436,7 +442,14 @@ public class ProjectFileManager {
 	private Project parseV3File(String fileName) throws IOException {
 		Project project;
 		FileInputStream fis = new FileInputStream(fileName);
-		project = (Project) xStream.fromXML(fis);
+		try {
+			project = (Project) xStream.fromXML(fis);
+		} catch (Exception e) {
+			LOG.warn("Could not open with the new xStream, trying the old one");
+			fis.close();
+			fis = new FileInputStream(fileName);
+			project = (Project) xStreamOld.fromXML(fis);
+		}
 		fis.close();
 		return project;
 	}