Examples of org.locationtech.udig.project.render.Tile

Package org.locationtech.udig.project.render

Examples of org.locationtech.udig.project.render.Tile

org.locationtech.udig.project.render.Tile
At tile represents a single space on the map within a specific ReferencedEnvelope. It holds a RenderExecutorComposite for fetching its image, and an SWTImage (which is disposed at various times). It listens to events for when to fetch, dispose, and construct new images. @author GDavis

        Collection<ReferencedEnvelope> tileBounds = computeTileBounds(areaOfInterest, resolution);


        for( Iterator<ReferencedEnvelope> iterator = tileBounds.iterator(); iterator.hasNext(); ) {
            ReferencedEnvelope referencedEnvelope = (ReferencedEnvelope) iterator.next();


            Tile tile = getOrCreateTile(referencedEnvelope);


            RenderExecutorComposite re = tile.getRenderExecutor();
            if (tile.getRenderState() == Tile.RenderState.INVALID) {
                re.setRenderBounds(tile.getReferencedEnvelope());
                re.getRenderer().setState(IRenderer.RENDER_REQUEST);
                re.render();
            } else {
                //kick the renderer to refresh the image
               re.getRenderer().setState(IRenderer.DONE);
            }
            tile.setRenderState(Tile.RenderState.RENDERED);
        }
    }

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     * Disposes all tiles
     */
    private void disposeAllTiles(){
        for( Iterator<Object> iterator = tileCache.getKeys().iterator(); iterator.hasNext(); ) {
            ReferencedEnvelope key = (ReferencedEnvelope) iterator.next();
            Tile t = (Tile)tileCache.get(key);
            if (t != null){
                removeAdapters(t.getRenderExecutor());
                t.dispose();
            }
        }    
    }

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        //they are the same; so they are related
        if (layer == contained) return true;
        
        
        Tile t = null;
        Iterator<Object> keys = tileCache.getKeys().iterator();
        while( t == null && keys.hasNext()){
            t = (Tile)tileCache.get((ReferencedEnvelope)keys.next());
        }
        if (t == null){
            //no tile found
            return false;
        }


        RenderExecutorComposite parent  = t.getRenderExecutor();
        Collection<TiledCompositeRendererImpl.RenderInfo>  kids = ((TiledCompositeRendererImpl)parent.getRenderer()).getChildren();
        
        for( Iterator<TiledCompositeRendererImpl.RenderInfo> iterator = kids.iterator(); iterator.hasNext(); ) {
            TiledCompositeRendererImpl.RenderInfo kid = iterator.next();
            IRenderContext childcontext = kid.getRenderer().getContext()

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        try {
            for( Iterator<ReferencedEnvelope> iterator = bounds.iterator(); iterator.hasNext(); ) {
                ReferencedEnvelope env = (ReferencedEnvelope) iterator.next();


                // get the tile
                Tile tile = getOrCreateTile(env);
                tile.setScreenState(Tile.ScreenState.ONSCREEN);
                if (tile.getRenderState() == Tile.RenderState.INVALID){
                    tile.getRenderExecutor().setRenderBounds(tile.getReferencedEnvelope());
                    tile.getRenderExecutor().setState(IRenderer.RENDER_REQUEST);
                }
                newTiles.put(env, tile);
            }
            
            //update the other tiles to an offscreen state
            for( Iterator<Object> iterator = tileCache.getKeys().iterator(); iterator.hasNext(); ) {
                ReferencedEnvelope referencedEnvelope = (ReferencedEnvelope) iterator.next();
                Tile t = (Tile)tileCache.get(referencedEnvelope);
                if (t != null && !newTiles.containsKey(referencedEnvelope)){
                    t.setScreenState(Tile.ScreenState.OFFSCREEN);
                }
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }

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     * 
     */
    private void invalidateAllTilesRenderState(){
        for( Iterator<Object> iterator = tileCache.getKeys().iterator(); iterator.hasNext(); ) {
            ReferencedEnvelope key = (ReferencedEnvelope)iterator.next();
            Tile t = (Tile)tileCache.get(key);
            if (t != null){
                t.setRenderState(Tile.RenderState.INVALID);
            }
        }
    }

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     * and modifications made as necessary.
     */
    private void invalidateAllTileContext(){
        for( Iterator<Object> iterator = tileCache.getKeys().iterator(); iterator.hasNext(); ) {
            ReferencedEnvelope key = (ReferencedEnvelope)iterator.next();
            Tile t = (Tile)tileCache.get(key);
            if (t != null){
                t.setContextState(Tile.ContextState.INVALID);
            }
        }
    }

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        g.clearRect(0,0, getMapDisplay().getWidth(), getMapDisplay().getHeight());
        
        //update screen tile states
        for( Iterator<Object> iterator = tileCache.getKeys().iterator(); iterator.hasNext(); ) {
            ReferencedEnvelope referencedEnvelope = (ReferencedEnvelope) iterator.next();
            Tile t = (Tile)tileCache.get(referencedEnvelope);
            if (t != null && !tileBounds.contains(referencedEnvelope)){
                t.setScreenState(Tile.ScreenState.OFFSCREEN);
            }
        }
        
        try {
            for( Iterator<ReferencedEnvelope> iterator = tileBounds.iterator(); iterator.hasNext(); ) {
                ReferencedEnvelope env = (ReferencedEnvelope) iterator.next();


                // get the tile image
                Tile tile = getOrCreateTile(env);
                tile.setScreenState(Tile.ScreenState.ONSCREEN);
                
                BufferedImage tileimage = tile.getBufferedImage(); 


                //write the image to the screen image
                Point a = getViewportModelInternal().worldToPixel(new Coordinate(env.getMinX(), env.getMinY()));
                Point b = getViewportModelInternal().worldToPixel(new Coordinate(env.getMaxX(), env.getMaxY()));

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        double resolution = viewportbounds.getWidth() / getMapDisplay().getWidth();
        Collection<ReferencedEnvelope> tileBounds = computeTileBounds(areaOfInterest, resolution);
        
        for( Iterator<Object> iterator = tileCache.getKeys().iterator(); iterator.hasNext(); ) {
            ReferencedEnvelope key = (ReferencedEnvelope)iterator.next();
            Tile t = (Tile)tileCache.get(key);
            if (!tileBounds.contains(key)){
                //we can't assume that all layers have been rendered outside of the current tile bounds
                //really we only need to do this when tiles are made visible...
                t.setRenderState(Tile.RenderState.INVALID);
            }
        }
    }

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         * Renders each tile in the list; until the list is empty
         */
        @Override
        protected IStatus run( IProgressMonitor monitor ) {
            if (tilestorender.size() == 0) return Status.OK_STATUS;
            Tile t = tilestorender.remove(0);
            manager.renderTile(t);
            if (tilestorender.size() > 0){
                schedule();
            }
            return Status.OK_STATUS;

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    public void clearCachedTiles() {
      //Collection<Tile> values = cachedTiles.values();
      //for (Tile tile : values) {
        Set<Entry<ReferencedEnvelope, Tile>> entrySet = cachedTiles.entrySet();
        for( Entry<ReferencedEnvelope, Tile> set : entrySet ) {
          Tile tile = set.getValue();
        // only dispose the image if this tile is not in the ready tiles
        if (!readyTiles.containsValue(tile)) {
          tile.disposeSWTImage();
        }
      }
      cachedTiles.clear();
    }

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org.locationtech.udig.project.ui.internal.render.displayAdapter.impl.ViewportPainter

org.locationtech.udig.project.ui.internal.render.displayAdapter.impl.ViewportPaneTiledSWT

org.locationtech.udig.project.ui.internal.TiledRenderManagerDynamic

org.locationtech.udig.project.ui.internal.TiledRenderManagerDynamic$RenderTileJob

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