package de.intevation.flys.client.client.ui.chart;

import com.google.gwt.core.client.GWT;

import com.smartgwt.client.widgets.Button;
import com.smartgwt.client.widgets.ImgButton;
import com.smartgwt.client.widgets.Label;
import com.smartgwt.client.widgets.layout.HLayout;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.events.CloseClickHandler;
import com.smartgwt.client.widgets.events.CloseClientEvent;

import de.intevation.flys.client.shared.model.Artifact;
import de.intevation.flys.client.shared.model.User;

import de.intevation.flys.client.client.FLYSConstants;
import de.intevation.flys.client.client.ui.CollectionView;
import de.intevation.flys.client.client.ui.DatacageWindow;


/**
 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
 */
public class ChartToolbar extends HLayout {

    protected static FLYSConstants MSG = GWT.create(FLYSConstants.class);


    public static final int PANEL_HEIGHT = 30;


    protected CollectionView view;

    protected ChartOutputTab chartTab;


    protected Button datacage;

    protected MousePositionPanel position;

    protected ZoomboxControl zoombox;

    protected ImgButton zoomToMaxExtent;

    protected ImgButton zoomOut;

    protected PanControl panControl;



    public ChartToolbar(CollectionView view, ChartOutputTab chartTab) {
        super();

        this.view       = view;
        this.chartTab   = chartTab;

        datacage        = new Button(MSG.databasket());
        position        = new MousePositionPanel(chartTab);
        zoombox         = new ZoomboxControl(chartTab, MSG.zoom_in());
        zoomToMaxExtent = new ImgButton();
        zoomOut         = new ImgButton();
        panControl      = new PanControl(chartTab, MSG.pan());

        datacage.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                GWT.log("Clicked 'datacage' button.");
                openDatacageWindow();
            }
        });

        String baseUrl = GWT.getHostPageBaseURL();
        zoomToMaxExtent.setSrc(baseUrl + MSG.zoom_all());
        zoomToMaxExtent.setWidth(20);
        zoomToMaxExtent.setHeight(20);
        zoomToMaxExtent.setShowDown(false);
        zoomToMaxExtent.setShowRollOver(false);
        zoomToMaxExtent.setShowDisabled(false);
        zoomToMaxExtent.setShowDisabledIcon(true);
        zoomToMaxExtent.setShowDownIcon(false);
        zoomToMaxExtent.setShowFocusedIcon(false);
        zoomToMaxExtent.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                getChartOutputTab().resetRanges();
            }
        });

        zoomOut.setSrc(baseUrl + MSG.zoom_out());
        zoomOut.setWidth(20);
        zoomOut.setHeight(20);
        zoomOut.setShowDown(false);
        zoomOut.setShowRollOver(false);
        zoomOut.setShowDisabled(false);
        zoomOut.setShowDisabledIcon(true);
        zoomOut.setShowDownIcon(false);
        zoomOut.setShowFocusedIcon(false);
        zoomOut.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                getChartOutputTab().zoomOut(10);
            }
        });

        zoombox.addZoomHandler(chartTab);
        zoombox.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                panControl.deselect();
            }
        });

        panControl.addPanHandler(chartTab);
        panControl.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                zoombox.deselect();
            }
        });

        initLayout();
    }


    public Artifact getArtifact() {
        return view.getArtifact();
    }

    public User getUser() {
        return view.getUser();
    }


    public ChartOutputTab getChartOutputTab() {
        return chartTab;
    }


    protected void initLayout() {
        setWidth100();
        setHeight(PANEL_HEIGHT);
        setMembersMargin(10);
        setPadding(5);
        setBorder("1px solid black");

        Label spacer = new Label();
        spacer.setWidth("*");
        datacage.setWidth("95px");
        position.setWidth("200px");

        addMember(datacage);
        addMember(zoomToMaxExtent);
        addMember(zoomOut);
        addMember(zoombox);
        addMember(panControl);
        addMember(spacer);
        addMember(position);
    }


    protected void openDatacageWindow() {
        Artifact artifact = getArtifact();
        User     user     = getUser();

        String outs = chartTab.getOutputName();

        final DatacageWindow dc = new DatacageWindow(
            artifact, user, outs, view);
        dc.addRedrawRequestHandler(chartTab);
        dc.addCloseClickHandler(new CloseClickHandler() {
            public void onCloseClick(CloseClientEvent event) {
                dc.destroy();
            }
        });
        dc.show();
    }
}
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