/****
 *
 * Class BoxArrowDiagram displays data in the form of colored boxes with arrows
 * between them.
 *
 */

#ifndef boxarrowdiagramIncluded
#define boxarrowdiagramIncluded

#include "label.h"
#include "view.h"
#include <InterViews/color.h>
#include <InterViews/graphic.h>
#include <InterViews/Graphic/picture.h>


typedef Graphic* BoxId;

class BoxArrowDiagram : public View {
  public:

    BoxArrowDiagram(Screen* s, int height = 200, int width = 200);
    /*
     * Construct this with the given dimensions, in pixels.
     */

    BoxId DrawBox(int l, int b, int r, int t, Color* c, Label* la);
    /*
     * Draw a generic box at the given l,b,r,t coordinates, which are the left,
     * bottom top, right coordiates of the box's rectangle.  Paint the box the
     * given color with the given label in its center.
     */

    BoxId DrawBox(int l, int b, int r, int t, Graphic* g)
    /*
     * Draw a box at the given l,b,r,t coordinates, with the given graphic as
     * its painted image.
     */

    void Select(BoxId id);
    /*
     * Select this by highlighting it in some way.  For now it does nothing.
     * Later it will do something like put little handles on each corner.
     */

    void Deselect(BoxId id);
    /*
     * Remove the highlighting effect.
     */

    Connect(BoxId id1, BoxId id2);
    /*
     * Draw a connecting line between the boxes of the given two ids.  For now
     * the line is drawn center to center.  Later it will be from the center of
     * the two nearest edges.
     */

  protected:
    Picture* p;			// The main rep that holds all of the drawn
				// boxes and arrows

};

#endif