eu.limetri.client.mapviewer.fx.ZoomPanel Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of mapviewer-javafx Show documentation
JXMapViewer JavaFX implementation
There is a newer version: 1.4.4
/**
 * Copyright (C) 2008-2012 AgroSense Foundation.
 *
 * AgroSense is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * There are special exceptions to the terms and conditions of the GPLv3 as it is applied to
 * this software, see the FLOSS License Exception
 * .
 *
 * AgroSense is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with AgroSense.  If not, see .
 */
package eu.limetri.client.mapviewer.fx;

import static eu.limetri.client.mapviewer.fx.JFXMapPane.MAX_ZOOM;
import static eu.limetri.client.mapviewer.fx.JFXMapPane.MIN_ZOOM;
import static eu.limetri.client.mapviewer.fx.JFXMapPane.ZOOM;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Orientation;
import javafx.scene.control.Button;
import javafx.scene.control.Slider;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.BorderPane;

public class ZoomPanel extends BorderPane {

	private static final int BUTTON_SIZE = 20;
	private static final ImageView imagePlus = new ImageView(new Image(JFXMapPane.class.getResource("plus.png").toString()));
	private static final ImageView imageMinus = new ImageView(new Image(JFXMapPane.class.getResource("minus.png").toString()));
	
	private Button zoomButtonPlus;
	private Button zoomButtonMinus;
	private Slider zoomSlider;
	private JFXMapPane mapPane;
	
	private SimpleIntegerProperty zoomProperty = new SimpleIntegerProperty();
	private PropertyChangeListener zoomPropertyChangeListener;
	
	public ZoomPanel(JFXMapPane mapPane) {
		super();
		this.mapPane = mapPane;
		init();
	}
	
	private void init() {
		zoomButtonMinus = new Button();
		zoomButtonPlus = new Button();
		zoomButtonMinus.setGraphic(imageMinus);
		zoomButtonPlus.setGraphic(imagePlus);
		zoomButtonMinus.setMaxSize(BUTTON_SIZE, BUTTON_SIZE);
		zoomButtonMinus.setMinSize(BUTTON_SIZE, BUTTON_SIZE);
		zoomButtonPlus.setMaxSize(BUTTON_SIZE, BUTTON_SIZE);
		zoomButtonPlus.setMinSize(BUTTON_SIZE, BUTTON_SIZE);
		
		zoomSlider = new Slider(MIN_ZOOM, MAX_ZOOM, 0);
		zoomSlider.setOrientation(Orientation.VERTICAL);
		
		setCenter(zoomSlider);
		setTop(zoomButtonPlus);
		setBottom(zoomButtonMinus);
		getStyleClass().add("zoom-controls-pane");
		
		zoomButtonPlus.getStyleClass().add("zoom-button");
		zoomButtonPlus.getStyleClass().add("plus");
		zoomButtonMinus.getStyleClass().add("zoom-button");
		zoomButtonMinus.getStyleClass().add("minus");

		setMaxWidth(20);
		setMaxHeight(150);
		
		zoomSlider.valueProperty().bindBidirectional(zoomProperty);
		
		zoomButtonPlus.setOnAction(new EventHandler() {
			
			@Override
			public void handle(ActionEvent event) {
				if (zoomProperty.get() < MAX_ZOOM) {
					zoomProperty.set(zoomProperty.get()+1);
				}
			}
			
		});
		
		zoomButtonMinus.setOnAction(new EventHandler() {
			
			@Override
			public void handle(ActionEvent event) {
				if (zoomProperty.get() > MIN_ZOOM) {
					zoomProperty.set(zoomProperty.get()-1);
				}
			}
			
		});
		
		zoomProperty.addListener(new ChangeListener() {

			@Override
			public void changed(ObservableValue observable,	Number oldValue, Number newValue) {
				setZoom((MAX_ZOOM - zoomProperty.get())+1);
			}
			
		});
		
		zoomPropertyChangeListener = new PropertyChangeListener() {

			@Override
			public void propertyChange(PropertyChangeEvent evt) {
				setZoomFromMap();
			}
			
		};

	}

	private void setZoomFromMap() {
		zoomProperty.set((MAX_ZOOM - mapPane.getZoom())+1);
	}
	
	protected void setZoom(int zoom) {
		mapPane.setZoom(zoom);
	}
	
	public void attach() {
		mapPane.addPropertyChangeListener(ZOOM, zoomPropertyChangeListener);
		setZoomFromMap();
	}
	
	
	public void detach() {
		mapPane.removePropertyChangeListener(ZOOM, zoomPropertyChangeListener);
	}
	
}