/*
* This is part of Geomajas, a GIS framework, http://www.geomajas.org/.
*
* Copyright 2008-2011 Geosparc nv, http://www.geosparc.com/, Belgium.
*
* The program is available in open source according to the GNU Affero
* General Public License. All contributions in this program are covered
* by the Geomajas Contributors License Agreement. For full licensing
* details, see LICENSE.txt in the project root.
*/
package org.geomajas.gwt.client.gfx.paintable.mapaddon;
import org.geomajas.gwt.client.Geomajas;
import org.geomajas.gwt.client.gfx.PainterVisitor;
import org.geomajas.gwt.client.gfx.paintable.Image;
import org.geomajas.gwt.client.gfx.paintable.mapaddon.PanButton.PanButtonDirection;
import org.geomajas.gwt.client.gfx.style.PictureStyle;
import org.geomajas.gwt.client.spatial.Bbox;
import org.geomajas.gwt.client.widget.MapWidget;
import com.smartgwt.client.types.Alignment;
import com.smartgwt.client.types.VerticalAlignment;
/**
* <p>
* Collection of pan buttons that cover the four corners. This class uses 4 {@link PanButton} objects to create the
* individual panning buttons.
* </p>
*
* @author Pieter De Graef
*/
public class PanButtonCollection extends MapAddon {
private PanButton north;
private PanButton east;
private PanButton south;
private PanButton west;
private Image background;
private MapWidget map;
// -------------------------------------------------------------------------
// Constructor:
// -------------------------------------------------------------------------
/**
* Create a panning collection for a certain map.
*
* @param id
* The unique identifier.
* @param map
* The map onto which to pan.
*/
public PanButtonCollection(String id, MapWidget map) {
super(id, 50, 50);
this.map = map;
north = new PanButton(getId() + "_panNorth", map, PanButtonDirection.NORTH);
north.setParent(this);
east = new PanButton(getId() + "_panEast", map, PanButtonDirection.EAST);
east.setParent(this);
south = new PanButton(getId() + "_panSouth", map, PanButtonDirection.SOUTH);
south.setParent(this);
west = new PanButton(getId() + "_panWest", map, PanButtonDirection.WEST);
west.setParent(this);
background = new Image(getId() + "_panImageBG");
background.setHref(Geomajas.getIsomorphicDir() + "geomajas/mapaddon/panbg.png");
background.setStyle(new PictureStyle(1));
applyPosition();
}
// -------------------------------------------------------------------------
// Constructor:
// -------------------------------------------------------------------------
/**
* On the first draw: call the onDraw methods for each panning button individually.
*/
public void onDraw() {
north.onDraw();
east.onDraw();
south.onDraw();
west.onDraw();
}
/**
* Does nothing.
*/
public void onRemove() {
}
/**
* Apply the correct positions on all panning buttons, and render them.
*/
public void accept(PainterVisitor visitor, Object group, Bbox bounds, boolean recursive) {
// Apply position on all pan buttons:
applyPosition();
// Then render them:
map.getVectorContext().drawGroup(group, this);
map.getVectorContext().drawImage(this, background.getId(), background.getHref(), background.getBounds(),
(PictureStyle) background.getStyle());
north.accept(visitor, group, bounds, recursive);
east.accept(visitor, group, bounds, recursive);
south.accept(visitor, group, bounds, recursive);
west.accept(visitor, group, bounds, recursive);
}
public void setMapSize(int mapWidth, int mapHeight) {
super.setMapSize(mapWidth, mapHeight);
north.setMapSize(mapWidth, mapHeight);
east.setMapSize(mapWidth, mapHeight);
south.setMapSize(mapWidth, mapHeight);
west.setMapSize(mapWidth, mapHeight);
}
// -------------------------------------------------------------------------
// Constructor:
// -------------------------------------------------------------------------
public void setAlignment(Alignment alignment) {
super.setAlignment(alignment);
applyPosition();
}
public void setVerticalAlignment(VerticalAlignment verticalAlignment) {
super.setVerticalAlignment(verticalAlignment);
applyPosition();
}
public void setHorizontalMargin(int horizontalMargin) {
super.setHorizontalMargin(horizontalMargin);
applyPosition();
}
public void setVerticalMargin(int verticalMargin) {
super.setVerticalMargin(verticalMargin);
applyPosition();
}
// -------------------------------------------------------------------------
// Private methods:
// -------------------------------------------------------------------------
private void applyPosition() {
background.setBounds(new Bbox(getHorizontalMargin(), getVerticalMargin(), getWidth(), getHeight()));
north.setHorizontalMargin(getHorizontalMargin() + 16);
north.setVerticalMargin(getVerticalMargin());
east.setHorizontalMargin(getHorizontalMargin() + 32);
east.setVerticalMargin(getVerticalMargin() + 16);
south.setHorizontalMargin(getHorizontalMargin() + 16);
south.setVerticalMargin(getVerticalMargin() + 32);
west.setHorizontalMargin(getHorizontalMargin());
west.setVerticalMargin(getVerticalMargin() + 16);
}
}