MiniMapViewImpl.java

package ie.flax.flaxengine.client.weave.view.Impl;

import ie.flax.flaxengine.client.events.CameraUpdateEvent;
import ie.flax.flaxengine.client.events.EventBus;
import ie.flax.flaxengine.client.events.MapUpdateEvent;
import ie.flax.flaxengine.client.weave.view.MiniMapView;

import com.google.gwt.canvas.client.Canvas;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.MouseDownEvent;
import com.google.gwt.event.dom.client.MouseDownHandler;
import com.google.gwt.event.dom.client.MouseMoveEvent;
import com.google.gwt.event.dom.client.MouseMoveHandler;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;

public class MiniMapViewImpl implements MiniMapView {
	private final Canvas minimap;
	private final MiniMapView.presenter presenter;
	private VerticalPanel abp;
	//private HTML warning = new HTML("<h3>Click to turn on minimap!</h3><p>(May hurt performance)</p>");

	public MiniMapViewImpl(MiniMapView.presenter pres) {
		presenter = pres;
		
		abp = new VerticalPanel();
		
		// create the canvas here
		minimap = Canvas.createIfSupported();
		minimap.setSize("100%", "100%");
		minimap.setCoordinateSpaceHeight(minimap.getCanvasElement()
				.getClientHeight());
		minimap.setCoordinateSpaceWidth(minimap.getCanvasElement()
				.getClientWidth());
		
		minimap.addClickHandler(new ClickHandler() {

			@Override
			public void onClick(ClickEvent event) {
			if (presenter.isRunning()){presenter.moveMapCamera(
					event.getRelativeX(minimap.getElement()),
					event.getRelativeY(minimap.getElement()));	
				}
			}
		});
		
		minimap.addMouseMoveHandler(new MouseMoveHandler() {
			
			@Override
			public void onMouseMove(MouseMoveEvent event) {
				//event.preventDefault();
				//event.stopPropagation();
				//presenter.drawCameraRectangle(event.getRelativeX(minimap.getElement()),
				//		event.getRelativeY(minimap.getElement()));
			}
		});
		
		minimap.addMouseDownHandler(new MouseDownHandler() {
			
			@Override
			public void onMouseDown(MouseDownEvent event) {
				event.preventDefault();
			}
		});
		
		//this.showWarning();
		
		Button onOffButton = new Button("Toggle minimap (on/off)");
		onOffButton.addClickHandler(new ClickHandler() {
			boolean on = false;
			@Override
			public void onClick(ClickEvent event) {
				if (on) {
					on = false;
				} else {
					on = true;			
				}
				
				presenter.setRunning(on);
				EventBus.handlerManager.fireEvent(new MapUpdateEvent());
			}
		});
		
		abp.add(minimap);
		abp.setCellHeight(minimap, "90%");
		abp.add(onOffButton);
		abp.setCellWidth(onOffButton, "100%");
		onOffButton.setWidth("100%");
		abp.setSize("100%", "100%");
	}

	private void showWarning() {
		//warning.getElement().getStyle().setBackgroundColor("rgba(255, 255, 255, 0.7) !important;");
		//abp.add(warning,0,0);
		
	}
	
	private void hideWarning() {
		//abp.getElement().getStyle().setBackgroundColor("");
		//abp.remove(warning);
		
	}

	@Override
	public Canvas getCanvas() {
		return minimap;
	}

	@Override
	public Widget getWidget() {
		return abp;
	}

	
}