| gvSIG desktop 1

 * @author jaume dominguez faus - jaume.dominguez@iver.es

 */

public class SymbologyFactory {

	/**

	 * do not use in other context.

	 */

	public static final Color FactoryDefaultSymbolColor = Color.GRAY;

		"gvSIG" +

		File.separator +

		"Symbols";

	public static Color DefaultSymbolColor = FactoryDefaultSymbolColor;

	public static Color DefaultFillSymbolColor = FactoryDefaultFillSymbolColor;

	public static Font DefaultTextFont = FactoryDefaultTextFont;

	public static String SymbolLibraryPath = FactorySymbolLibraryPath;

	private static Logger logger = Logger.getLogger(SymbologyFactory.class.getName());

	private static WarningSymbol warningSymbol;

	 */

	public static IStyle createStyleFromXML(XMLEntity xml, String defaultDescription) {

		if (!xml.contains("desc")) {

				defaultDescription = "";

			xml.putProperty("desc", defaultDescription);

		default:

			throw new Error("Shape type not yet supported for multilayer symbols");

		}

		if (mSym instanceof CartographicSupport) {

			CartographicSupport cs = (CartographicSupport) mSym;

			cs.setUnit(CartographicSupportToolkit.DefaultMeasureUnit);

		cs.setUnit(CartographicSupportToolkit.DefaultMeasureUnit);

		cs.setReferenceSystem(CartographicSupportToolkit.DefaultReferenceSystem);

	}

	/**

	 * Returns a new instance of an <b>IFillSymbol</b>. Black outline,

	 * and transparent fill.

	 */

	public static ISymbol createDefaultSymbolByShapeType(int shapeType, Color color) {

		ISymbol sym = createDefaultSymbolByShapeType(shapeType);

		if (sym instanceof IMarkerSymbol) {

			((IMarkerSymbol) sym).setColor(color);

		}

		return sym;

	}

	public static ISymbol getWarningSymbol(String message, String symbolDesc, int symbolDrawExceptionType) {

		if (warningSymbol == null) {

		warningSymbol.setDrawExceptionType(symbolDrawExceptionType);

		return warningSymbol;

	}

	private static class WarningSymbol extends MultiShapeSymbol {

		private String desc;

		private String message;

		private int exceptionType;

		private SimpleTextSymbol text;

		public static void main(String[] args) {

			JFrame f = new JFrame();

			final ISymbol warning = SymbologyFactory.getWarningSymbol(SymbolDrawingException.STR_UNSUPPORTED_SET_OF_SETTINGS, "a description", SymbolDrawingException.UNSUPPORTED_SET_OF_SETTINGS);

			if (message == null) {

				message = "Symbol undrawable.\nPlease, check errors.";

			}

			String[] messageLines = message.split("\n");

			int strokeWidth = (int) (Math.min(r.width, r.height)*.1);

			if (strokeWidth == 0) strokeWidth = 1;

			g.setColor(Color.red);

			g.setStroke(new BasicStroke(strokeWidth, BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND));

			int x = r.x+strokeWidth;

			int y = r.x+strokeWidth;

			int width = r.width-(strokeWidth+strokeWidth);

			int height = r.height-(strokeWidth+strokeWidth);

			double radius = Math.min(width, height)*.5;

			double centerX = r.getCenterX();

			double centerY = r.getCenterY();

			g.setFont(new Font("Arial", fontSize, Font.PLAIN));

			g.setColor(Color.black);

			g.setClip(null);

			if (text == null) {

				text = new SimpleTextSymbol();

				text.setAutoresizeEnabled(true);

			}

			double lineHeight = (r.getHeight()-6)/messageLines.length;

			Rectangle textRect = new Rectangle(

					(int) r.getMinY()+6,

					(int) lineHeight);

			for (int i =0; i < messageLines.length; i++) {

				text.setText(messageLines[i]);

				textRect.setLocation((int) r.getX(), (int) (r.getY()+r.getHeight()));

			}

		}

		@Override

		public XMLEntity getXMLEntity() {

			XMLEntity xml = new XMLEntity();

			xml.putProperty("message", message);

			return xml;

		}

		@Override

		public void setXMLEntity(XMLEntity xml) {

			setDescription(xml.getStringProperty("desc"));

			message = xml.getStringProperty("message");

		}

}