NatTable/src/org/eclipse/nebula/widgets/nattable/renderer/javafx/JavaFXNatTable.xtend

package org.eclipse.nebula.widgets.nattable.renderer.javafx

import java.util.HashMap
import javafx.beans.value.ObservableValue
import javafx.scene.canvas.Canvas
import org.eclipse.nebula.widgets.nattable.core.layer.Layer

class JavaFXNatTable extends Canvas {
	
	val static defaultLayerRenderer = new DefaultLayerRenderer
	
	val Layer layer
	val layerRenderers = new HashMap<String, JavaFXLayerRenderer>
	
	new(Layer layer, int width, int height) {
		super(width, height)
		this.layer = layer
		
		renderLayer
		
        boundsInLocalProperty.addListener([ ObservableValue<?> observable, Object oldValue, Object newValue |
        	renderLayer
        ])
	}
	
	private def renderLayer() {
		layer.layerRenderer.renderLayer(graphicsContext2D, boundsInLocal, layer)
	}
	
	private def JavaFXLayerRenderer getLayerRenderer(Layer layer) {
		var layerRenderer = layerRenderers.get(layer.class.canonicalName)
		
		if (layerRenderer === null) {
			// find it!
			layer.class.name + "Renderer"
			
			// can't find it? use default renderer
			layerRenderer = defaultLayerRenderer
			
			layerRenderers.put(layer.class.canonicalName, layerRenderer)
		}
		
		layerRenderer
	}
	
}