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package visidor;

import java.awt.Color;

import java.awt.Point;

import java.awt.Rectangle;

import javax.swing.JFrame;

import org.netbeans.api.visual.action.ActionFactory;

import org.netbeans.api.visual.action.MoveProvider;

import org.netbeans.api.visual.anchor.AnchorFactory;

import org.netbeans.api.visual.border.BorderFactory;

import org.netbeans.api.visual.widget.ConnectionWidget;

import org.netbeans.api.visual.widget.ImageWidget;

import org.netbeans.api.visual.widget.LabelWidget;

import org.netbeans.api.visual.widget.LayerWidget;

import org.netbeans.api.visual.widget.Scene;

import org.netbeans.api.visual.widget.Widget;

/**

 *

 * @author Jaroslav Tulach <jtulach@netbeans.org>

 */

public class Viewer implements MoveProvider {

    /**

     * @param args the command line arguments

     */

    public static void main(String[] args) {

        Scene scene = new Scene();

//        Scene layerBoard = scene;

        final LayerWidget layerLines = new LayerWidget(scene);

        scene.addChild(layerLines);

        final LayerWidget layerBoard = new LayerWidget(scene);

        layerLines.addChild(layerBoard);

        final int WIDTH = 50;

        final int HEIGHT = 50;

//        conn.setSourceAnchor(ahoj);

        Widget[][] fields = new Widget[10][];

        for (int i = 0; i < fields.length; i++) {

            fields[i] = new Widget[10];

            for (int j = 0; j < fields[i].length; j++) {

                LabelWidget w = new LabelWidget(scene);

                w.setPreferredBounds(new Rectangle(i * WIDTH, j * HEIGHT, WIDTH, HEIGHT));

                layerBoard.addChild(w);

                fields[i][j] = w;

            }

        }

        for (int i = 0; i < fields.length; i++) {

            for (int j = 0; j < fields[i].length; j++) {

                if (i > 0) {

                    ConnectionWidget horiz = new ConnectionWidget(scene);

                    horiz.setSourceAnchor(AnchorFactory.createCenterAnchor(fields[i - 1][j]));

                    horiz.setTargetAnchor(AnchorFactory.createCenterAnchor(fields[i][j]));

                    scene.addChild(horiz);

                }

                if (j > 0) {

                    ConnectionWidget vert = new ConnectionWidget(scene);

                    vert.setSourceAnchor(AnchorFactory.createCenterAnchor(fields[i][j - 1]));

                    vert.setTargetAnchor(AnchorFactory.createCenterAnchor(fields[i][j]));

                    scene.addChild(vert);

                }

            }

        }

        ImageWidget horizontalWall = new ImageWidget(scene);

        horizontalWall.setPreferredBounds(new Rectangle(550, 300, 100, 10));

        horizontalWall.setBackground(Color.BLACK);

        horizontalWall.getActions().addAction(ActionFactory.createMoveAction(null, new Viewer(true)));

        horizontalWall.setForeground(Color.BLACK);

        horizontalWall.setBorder(BorderFactory.createLineBorder());

        layerBoard.addChild(horizontalWall);

        ImageWidget verticalWall = new ImageWidget(scene);

        verticalWall.setPreferredBounds(new Rectangle(600, 150, 10, 100));

        verticalWall.setBackground(Color.BLACK);

        verticalWall.getActions().addAction(ActionFactory.createMoveAction(null, new Viewer(false)));

        verticalWall.setBorder(BorderFactory.createLineBorder());

        layerBoard.addChild(verticalWall);

        JFrame f = new JFrame();

        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        f.add(scene.createView());

        f.pack();

        f.setVisible(true);

    }

    final boolean horizontal;

    Point orig;

    private Viewer(boolean horizontal) {

        this.horizontal = horizontal;

    }

    public void movementStarted(Widget widget) {

        System.err.println("started: " + widget.getBounds());

    }

    public void movementFinished(Widget widget) {

        System.err.println("finished: " + widget.getLocation());

    }

    public Point getOriginalLocation(Widget widget) {

        orig = new Point(widget.getBounds().x, widget.getBounds().y);

        System.err.println("orig: " + orig);

        return orig;

    }

    public void setNewLocation(Widget widget, Point location) {

        widget.setPreferredBounds(new Rectangle(

            round(location.x, true),

            round(location.y, false),

            horizontal ? 100 : 10,

            horizontal ? 10 : 100)

        );

    }

    int round(int p, boolean cmpHori) {

//        p = horizontal ? orig.x + p: orig.y + p;

        int onboard = p / 50;

        System.err.println(cmpHori ? "hori: " + onboard : "  vert: " + onboard);

        if (onboard < 0) {

            onboard = 0;

        }

        if (onboard >= 9) {

            return p;

        }

        int real = 25 + onboard * 50;

        if (horizontal != cmpHori) {

            return real - 5;

        } else {

            return real;

        }

    }

}