/*
* JGrass - Free Open Source Java GIS http://www.jgrass.org
* (C) HydroloGIS - www.hydrologis.com
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* (http://www.eclipse.org/legal/epl-v10.html), and the HydroloGIS BSD
* License v1.0 (http://udig.refractions.net/files/hsd3-v10.html).
*/
package org.locationtech.udig.catalog.jgrass.activeregion;
import java.awt.Point;
import java.awt.Rectangle;
import java.io.File;
import java.io.IOException;
import org.locationtech.udig.project.IBlackboard;
import org.locationtech.udig.project.ILayer;
import org.locationtech.udig.project.IMap;
import org.locationtech.udig.project.command.MapCommand;
import org.locationtech.udig.project.internal.commands.selection.BBoxSelectionCommand;
import org.locationtech.udig.project.ui.ApplicationGIS;
import org.locationtech.udig.project.ui.commands.SelectionBoxCommand;
import org.locationtech.udig.project.ui.render.displayAdapter.MapMouseEvent;
import org.locationtech.udig.project.ui.tool.ModalTool;
import org.locationtech.udig.project.ui.tool.SimpleTool;
import org.geotools.gce.grassraster.JGrassRegion;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.Envelope;
import org.locationtech.udig.catalog.jgrass.JGrassPlugin;
public class ActiveRegionBBoxSelection extends SimpleTool implements ModalTool {
/**
* Comment for <code>ID</code>
*/
public static final String ID = "org.locationtech.udig.catalog.jgrass.activeregion.ui.activeregionbbox"; //$NON-NLS-1$
private Point start;
private boolean selecting;
private org.locationtech.udig.project.ui.commands.SelectionBoxCommand shapeCommand;
/**
* Creates a new instance of BBoxSelection
*/
public ActiveRegionBBoxSelection() {
super(MOUSE | MOTION);
JGrassPlugin.getDefault().getActiveRegionMapGraphic();
}
/**
* @see org.locationtech.udig.project.ui.tool.SimpleTool#onMouseDragged(org.locationtech.udig.project.render.displayAdapter.MapMouseEvent)
*/
protected void onMouseDragged( MapMouseEvent e ) {
Point end = e.getPoint();
shapeCommand.setShape(new Rectangle(Math.min(start.x, end.x), Math.min(start.y, end.y), Math.abs(start.x - end.x), Math
.abs(start.y - end.y)));
context.getViewportPane().repaint();
}
/**
* @see org.locationtech.udig.project.ui.tool.AbstractTool#mousePressed(org.locationtech.udig.project.render.displayAdapter.MapMouseEvent)
*/
public void onMousePressed( MapMouseEvent e ) {
shapeCommand = new SelectionBoxCommand();
if (((e.button & MapMouseEvent.BUTTON1) != 0)) {
selecting = true;
start = e.getPoint();
shapeCommand.setValid(true);
shapeCommand.setShape(new Rectangle(start.x, start.y, 0, 0));
context.sendASyncCommand(shapeCommand);
}
}
/**
* @see org.locationtech.udig.project.ui.tool.AbstractTool#mouseReleased(org.locationtech.udig.project.render.displayAdapter.MapMouseEvent)
*/
public void onMouseReleased( MapMouseEvent e ) {
if (selecting) {
Point end = e.getPoint();
if (start == null || start.equals(end)) {
Envelope bounds = getContext().getBoundingBox(e.getPoint(), 3);
sendSelectionCommand(e, bounds);
} else {
Coordinate c1 = context.getMap().getViewportModel().pixelToWorld(start.x, start.y);
Coordinate c2 = context.getMap().getViewportModel().pixelToWorld(end.x, end.y);
Envelope bounds = new Envelope(c1, c2);
ILayer activeRegionLayer = JGrassPlugin.getDefault().getActiveRegionMapGraphic();
IMap activeMap = ApplicationGIS.getActiveMap();
IBlackboard blackboard = activeMap.getBlackboard();
ActiveRegionStyle style = (ActiveRegionStyle) blackboard.get(ActiveregionStyleContent.ID);
if (style != null) {
try {
JGrassRegion activeRegion = new JGrassRegion(style.windPath);
JGrassRegion newActiveRegion = JGrassRegion.adaptActiveRegionToEnvelope(bounds, activeRegion);
JGrassRegion.writeWINDToMapset(new File(style.windPath).getParent(), newActiveRegion);
style.north = (float) newActiveRegion.getNorth();
style.south = (float) newActiveRegion.getSouth();
style.east = (float) newActiveRegion.getEast();
style.west = (float) newActiveRegion.getWest();
style.rows = newActiveRegion.getRows();
style.cols = newActiveRegion.getCols();
blackboard.put(ActiveregionStyleContent.ID, style);
activeRegionLayer.refresh(null);
} catch (IOException e1) {
e1.printStackTrace();
}
}
sendSelectionCommand(e, bounds);
}
}
}
/**
* @param e
* @param bounds
*/
protected void sendSelectionCommand( MapMouseEvent e, Envelope bounds ) {
MapCommand command;
if (e.isModifierDown(MapMouseEvent.MOD2_DOWN_MASK)) {
command = getContext().getSelectionFactory().createBBoxSelectionCommand(bounds, BBoxSelectionCommand.ADD);
} else if (e.isModifierDown(MapMouseEvent.MOD1_DOWN_MASK)) {
command = getContext().getSelectionFactory().createBBoxSelectionCommand(bounds, BBoxSelectionCommand.SUBTRACT);
} else {
command = getContext().getSelectionFactory().createBBoxSelectionCommand(bounds, BBoxSelectionCommand.NONE);
}
getContext().sendASyncCommand(command);
selecting = false;
shapeCommand.setValid(false);
getContext().getViewportPane().repaint();
}
}