Revision 45524
| trunk/org.gvsig.desktop/org.gvsig.desktop.library/org.gvsig.symbology/org.gvsig.symbology.lib/org.gvsig.symbology.lib.impl/src/main/java/org/gvsig/symbology/fmap/mapcontext/rendering/symbol/style/ImageStyle.java | ||
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/** |
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* Controls the style of an image to be correctly painted. This class controls |
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* aspects like the source path of the image, creates a rectangle to paint inside
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* the image, draws the outline of the image and so on. |
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*
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* @author jaume dominguez faus - jaume.dominguez@iver.es
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* aspects like the source path of the image, creates a rectangle to paint |
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* inside the image, draws the outline of the image and so on.
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* |
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* @author gvSIG Team
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*/ |
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@SuppressWarnings("UseSpecificCatch")
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public class ImageStyle extends BackgroundFileStyle {
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public static final String IMAGE_STYLE_PERSISTENCE_DEFINITION_NAME = "ImageStyle"; |
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private static final String SOURCE = "source"; |
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private BufferedImage img; |
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/** |
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* Creates a rectangle with the dimensions of the buffered image |
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* @return Rectangle |
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*/ |
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public Rectangle getBounds() {
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if (img == null) return new Rectangle(); |
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return new Rectangle(new Dimension(img.getWidth(), img.getHeight())); |
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} |
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/** |
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* Defines the source (file) from where the buffered image will be taken. |
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* @param f,File |
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*/ |
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public void setSource(URL url) throws IOException {
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source = url; |
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img = ImageIO.read(url); |
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} |
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private BufferedImage img; |
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public void drawInsideRectangle(Graphics2D g, Rectangle r, boolean keepAspectRatio) {
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if (img != null) {
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/** |
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* Creates a rectangle with the dimensions of the buffered image |
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* |
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* @return Rectangle |
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*/ |
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@Override |
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public Rectangle getBounds() {
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if (img == null) {
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return new Rectangle(); |
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} |
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return new Rectangle(new Dimension(img.getWidth(), img.getHeight())); |
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} |
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double xOffset = 0; |
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double yOffset = 0; |
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double xScale = 1; |
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double yScale = 1; |
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if (keepAspectRatio) {
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double scale; |
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if (img.getWidth()>img.getHeight()) {
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scale = r.getWidth()/img.getWidth(); |
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yOffset = 0.5*(r.getHeight() - img.getHeight()*scale); |
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} else {
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scale = r.getHeight()/img.getHeight(); |
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xOffset = 0.5*(r.getWidth() - img.getWidth()*scale); |
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} |
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xScale = yScale = scale; |
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/** |
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* Defines the source (file) from where the buffered image will be taken. |
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* |
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* @param url |
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*/ |
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@Override |
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public void setSource(URL url) throws IOException {
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source = url; |
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img = ImageIO.read(url); |
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} |
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} else {
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xScale = r.getWidth()/img.getWidth(); |
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yScale = r.getHeight()/img.getHeight(); |
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yOffset = img.getHeight()*0.5*yScale ; |
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@Override |
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public void drawInsideRectangle(Graphics2D g, Rectangle r, boolean keepAspectRatio) {
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if (img != null) {
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} |
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double xOffset = 0; |
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double yOffset = 0; |
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@SuppressWarnings("UnusedAssignment")
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double xScale = 1; |
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@SuppressWarnings("UnusedAssignment")
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double yScale = 1; |
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if (keepAspectRatio) {
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double scale; |
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if (img.getWidth() > img.getHeight()) {
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scale = r.getWidth() / img.getWidth(); |
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yOffset = 0.5 * (r.getHeight() - img.getHeight() * scale); |
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} else {
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scale = r.getHeight() / img.getHeight(); |
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xOffset = 0.5 * (r.getWidth() - img.getWidth() * scale); |
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} |
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xScale = yScale = scale; |
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} else {
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xScale = r.getWidth() / img.getWidth(); |
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yScale = r.getHeight() / img.getHeight(); |
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yOffset = img.getHeight() * 0.5 * yScale; |
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AffineTransform at = AffineTransform.getTranslateInstance(xOffset, yOffset); |
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at.concatenate(AffineTransform.getScaleInstance(xScale, yScale)); |
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g.drawRenderedImage(img, at); |
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} |
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} |
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} |
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public boolean isSuitableFor(ISymbol symbol) {
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// TODO Implement it |
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throw new Error("Not yet implemented!");
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AffineTransform at = AffineTransform.getTranslateInstance(xOffset, yOffset); |
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at.concatenate(AffineTransform.getScaleInstance(xScale, yScale)); |
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g.drawRenderedImage(img, at); |
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} |
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} |
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} |
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@Override |
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public boolean isSuitableFor(ISymbol symbol) {
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// TODO Implement it |
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throw new Error("Not yet implemented!");
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public void drawOutline(Graphics2D g, Rectangle r) throws SymbolDrawingException {
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drawInsideRectangle(g, r); |
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} |
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} |
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public void loadFromState(PersistentState state) |
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throws PersistenceException {
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try {
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String sourceSymbolInLibrary = state.getString(SOURCE_SYMBOL_IN_LIBRARY); |
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if (sourceSymbolInLibrary != null){
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setSource(new URL(getSymbolLibraryURL().toString()+sourceSymbolInLibrary)); |
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} else {
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setSource(state.getURL(SOURCE)); |
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} |
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@Override |
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public void drawOutline(Graphics2D g, Rectangle r) throws SymbolDrawingException {
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drawInsideRectangle(g, r); |
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} |
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@Override |
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public void loadFromState(PersistentState state) |
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throws PersistenceException {
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try {
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String sourceSymbolInLibrary = state.getString(SOURCE_SYMBOL_IN_LIBRARY); |
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if (sourceSymbolInLibrary != null) {
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setSource(new URL(getSymbolLibraryURL().toString() + sourceSymbolInLibrary)); |
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} else {
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setSource(state.getURL(SOURCE)); |
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} |
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} catch (Exception e) {
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throw new PersistenceCantSetSourceException(e); |
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} |
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}
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}
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public void saveToState(PersistentState state) throws PersistenceException {
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if (isLibrarySymbol()){
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state.set(SOURCE_SYMBOL_IN_LIBRARY, getSourceSymbolInLibrary()); |
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} else {
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state.setNull(SOURCE_SYMBOL_IN_LIBRARY); |
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} |
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@Override |
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public void saveToState(PersistentState state) throws PersistenceException {
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if (isLibrarySymbol()) {
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state.set(SOURCE_SYMBOL_IN_LIBRARY, getSourceSymbolInLibrary()); |
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} else {
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state.setNull(SOURCE_SYMBOL_IN_LIBRARY); |
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} |
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state.set(SOURCE, source); |
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}
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}
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public static class RegisterPersistence implements Callable {
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@Override |
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public Object call() throws Exception {
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PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
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if( manager.getDefinition(IMAGE_STYLE_PERSISTENCE_DEFINITION_NAME)==null ) {
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if (manager.getDefinition(IMAGE_STYLE_PERSISTENCE_DEFINITION_NAME) == null) {
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DynStruct definition = manager.addDefinition( |
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ImageStyle.class, |
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IMAGE_STYLE_PERSISTENCE_DEFINITION_NAME, |
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IMAGE_STYLE_PERSISTENCE_DEFINITION_NAME+" Persistence definition",
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null,
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null |
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ImageStyle.class,
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IMAGE_STYLE_PERSISTENCE_DEFINITION_NAME,
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IMAGE_STYLE_PERSISTENCE_DEFINITION_NAME + " Persistence definition",
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null,
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null
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); |
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// Extend the Style base definition |
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} |
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} |
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} |
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