gzz-mirror/Java/flob/WindowCellView.zob

/*   
ClockCellView.zob
 *    
 *    Copyright (c) 2000-2001, Ted Nelson and Tuomas Lukka
 *    Copyright (c) 2001, Benja Fallenstein
 *
 *    You may use and distribute under the terms of either the GNU Lesser
 *    General Public License, either version 2 of the license or,
 *    at your choice, any later version. Alternatively, you may use and
 *    distribute under the terms of the XPL.
 *
 *    See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of 
 *    the licenses.
 *
 *    This software is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the README
 *    file for more details.
 *
 */
/*
 * Written by Benja Fallenstein
 */

package org.gzigzag;
import java.util.*;
import java.awt.*;

/** A cell view that shows the contents of a window.
 *  Use this ZOb as the headcell on d.cellview from the window's cursor cell,
 *  and that cell will appear as the window's contents.
 */
 
public class WindowCellView implements FlobFactory, ZOb {
public static final String rcsid = "$Id: WindowCellView.zob,v 1.3 2001/03/18 17:50:16 bfallenstein Exp $";
    public static boolean dbg = false;
    private static void p(String s) { if(dbg) ZZLogger.log(s); }
    private static void pa(String s) { ZZLogger.log(s); }

    STRUCTPARAMS {
    }

    public Dimension getSize(ZZCell c, float fract) {
	// XXX use the bounds as specified in the structure
	return new Dimension((int)(500*fract), (int)(300*fract));
    }

    public Flob makeFlob(FlobSet into, ZZCell c0, ZZCell handleCell,
		float fract, 
		int x, int y, int d, int w, int h) {

	FlobSet sc = into.create(new Dimension(w, h));
	SceneFlob sf = new SimpleSceneFlob(x, y, d, w, h, c0, sc);
	CellFlobFactory1.addSolidColors(into, sf, sf);
	into.add(sf);
	
	if(w+h < 100) return sf;
	ZZCell view = c0.getRootclone();

	    ZZCell c = ZZDefaultSpace.findInheritableParam(view, "View");
	    ZZCell rastname = ZZCursorReal.get(c);

	    ZOb frz = ZZDefaultSpace.readZOb(rastname);
	    FlobView fr = null;
	    if(frz != null && frz instanceof FlobView) {
		fr = (FlobView)frz ;
	    } else {
		System.out.println("getScene: invalid type: "+frz);
		fr = new NullView();
	    }
	    // XXX Signal error

	    c = ZZDefaultSpace.findInheritableParam(view, "CellView");

	    FlobFactory rff = null;
	    if(c != null) {
		ZZCell cfact = ZZCursorReal.get(c);

		ZOb ffzob = ZZDefaultSpace.readZOb(cfact);
		rff = (FlobFactory) ffzob;
	    }

	    p("WindowCellView: prepare view");
	    fr.raster(sc, rff, view, ZZDefaultSpace.getDimList(view), 
		      ZZCursorReal.get(view));
	    p("WindowCellView: view prepared");

	    if(rff != null) {
		Flob rn = rff.placeFlob(sc, rastname, rastname, (float)1.5, w, 0, 1, 1, 0);
		rn.flobPath="rastname";
	    }
	
	return sf;
    }

    public Flob placeFlob(FlobSet into, ZZCell c, ZZCell handleCell,
		    float fract, 
			int x, int y, int depth,
			float xfract, float yfract) {
		Dimension d = getSize(c, fract);
		return makeFlob(into, c, handleCell, fract, 
			(int)(x-xfract*d.width),
			(int)(y-yfract*d.height),
			depth, d.width, d.height);
    }

    public Flob centerFlob(FlobSet into, ZZCell c, ZZCell handleCell,
		float fract, Point p, int xalign, int yalign,
		int depth, Dimension d) {
	if(d == null) d = getSize(c, fract);
	int x, y;
	x = p.x - d.width/2; y = p.y - d.height/2;
	
	if(xalign < 0) x = p.x;
	if(xalign > 0) x = p.x - d.width;
	if(yalign < 0) y = p.y;
	if(yalign > 0) y = p.y - d.height;
	p("centerFlob "+p+" "+d+" at "+x+" "+y+" align "+xalign+" "+yalign);
	return makeFlob(into, c, handleCell, fract, x, y, 
			depth, d.width, d.height);
    }
    public Flob centerFlob(FlobSet into, ZZCell c, ZZCell handleCell,
		float fract, Point p, int xalign, int yalign, int depth) {
	return centerFlob(into, c, handleCell, fract, p, xalign, yalign,
			  depth, null);
    }
}

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