160 lines
3.9 KiB
Java
160 lines
3.9 KiB
Java
/*
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BallCell.java
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*
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* Copyright (c) 1999-2000, Ted Nelson and Tuomas Lukka
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*
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* You may use and distribute under the terms of either the GNU Lesser
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* General Public License, either version 2 of the license or,
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* at your choice, any later version. Alternatively, you may use and
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* distribute under the terms of the XPL.
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*
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* See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of
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* the licenses.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the README
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* file for more details.
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*
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*/
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/*
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* Written by Tuomas Lukka
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*/
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package org.gzigzag;
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import java.awt.*;
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import java.awt.event.*;
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import java.util.*;
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/** A ball-and-stick graphical representation of a cell.
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*/
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public class BallCell extends Flob implements Colorer {
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public static final String rcsid = "$Id: BallCell.java,v 1.1.10.1 2002/02/16 18:51:42 tuukkah Exp $";
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public static final boolean dbg = true;
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String s;
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Font f;
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// XXX Should this *really* need to be stored here?
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FontMetrics fm;
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/** Font height. */
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int fh;
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int fasc;
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/** String width. */
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int sw;
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ZZCell strCell;
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int xoffs = 3;
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int yoffs = 3;
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Color ballColor;
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Color bgColor;
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public boolean addColor(Color c) {
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if(ballColor == null) ballColor = c;
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return true;
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}
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static public final Dimension getSize(FontMetrics fm, String str,
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int xoffs, int yoffs) {
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int w = fm.stringWidth(str) + xoffs * 2 + 2;
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int h = fm.getHeight() + 2*yoffs;
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w += h; // Room for the ball.
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return new Dimension( w, h );
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}
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public int getStrX(int ind) {
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if(fm == null) throw new Error("No fontmetrics");
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if(ind > s.length()) {
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// XXX What to do?
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return x + xoffs + h + fm.stringWidth(s);
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}
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return x + xoffs + h + fm.stringWidth(s.substring(0, ind)) ;
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}
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public void render(Graphics g, int mx, int my, int md,
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int mw, int mh) {
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int ty = my + (mh-fh)/2 + fasc;
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Color bu = g.getColor();
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g.setColor(ballColor != null ? ballColor : Color.white);
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g.fillOval(mx+yoffs, my+yoffs, mh-2*yoffs, mh-2*yoffs);
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g.setFont(f);
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int start = 0;
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int end = -1;
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while (end < s.length()) { // Split into lines
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do {
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end = s.indexOf(' ', end + 1);
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if (end == -1) break;
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} while (fm.stringWidth(s.substring(start, end)) < mw);
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if (end == -1)
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end = s.length();
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if (start < end) {
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String line = s.substring(start, end);
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g.setColor(bgColor);
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if (false && start != 0) {
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g.fillRect(mx+xoffs + h - 2, ty - (fasc - (fh-fasc)), fm.stringWidth(line), fasc-(fh-fasc));
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} else {
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g.drawString(line, mx+xoffs + h - 1, ty - 1);
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g.drawString(line, mx+xoffs + h + 2, ty + 2);
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}
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g.setColor(Color.white);
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g.drawString(line, mx+xoffs + h + 1, ty + 1);
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g.setColor(bu);
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g.drawString(line, mx+xoffs + h, ty);
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ty += fasc;
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}
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start = end + 1;
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}
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g.setColor(bu);
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g.drawOval(mx+yoffs, my+yoffs, mh-2*yoffs, mh-2*yoffs);
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}
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public BallCell(int x, int y, int d, int w, int h,
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ZZCell c, ZZCell strCell, String s,
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Font f, FontMetrics fm, FlobSet fs) {
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super(x, y, d, w, h, c);
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// Not true, since c can be the flob cell and d the referring
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// cell.
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// this.s = c.getText();
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this.s = (s==null? "" : s);
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this.strCell = strCell;
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this.f = f;
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this.fm = fm;
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this.fh = fm.getAscent()+fm.getDescent();
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this.fasc = fm.getAscent()+fm.getLeading();
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this.sw = fm.stringWidth(this.s);
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this.bgColor = fs.getBackground();
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}
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public Object hit(int x0, int y0) {
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if(!insideRect(x0, y0)) return null;
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// Search for the right position in the string.
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// We return a virtual cursor.
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int ind = ZZUtil.findStringHit(s, x0-x-xoffs-h, fm);
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return new ZZCursorVirtual(strCell, ind);
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}
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public Point getCenter(Point p) {
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p.x = x + h/2;
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p.y = y + h/2;
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return p;
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}
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}
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