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Java/flob/CellFlob1.java

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+/*   
+CellFlob1.java
+ *    
+ *    Copyright (c) 1999-2000, Ted Nelson and Tuomas Lukka
+ *
+ *    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 Tuomas Lukka
+ */
+
+package org.gzigzag;
+import java.awt.*;
+import java.awt.event.*;
+import java.util.*;
+
+public class CellFlob1 extends BoxedFlob {
+public static final String rcsid = "$Id: CellFlob1.java,v 1.16 2001/03/18 17:50:16 bfallenstein Exp $";
+    public static final boolean dbg = true;
+
+    String s;
+    Font f;
+    // XXX Should this *really* need to be stored here?
+    FontMetrics fm;
+
+    /** Font height. */
+    int fh; 
+    int fasc;
+    /** String width. */
+    int sw;
+
+    ZZCell strCell;
+
+    int xoffs = 0; // Previously, these margins where three, but at the moment
+    int yoffs = 0; // margins are cared for by the BoxTypes
+
+    static public final Dimension getSize(FontMetrics fm, String str, 
+		int xoffs, int yoffs) {
+	int w = fm.stringWidth(str) + xoffs * 2 + 2;
+	int h = fm.getHeight() + 2*yoffs;
+	if(w < h) w = h;
+	return new Dimension( w, h );
+    }
+
+    public int getStrX(int ind) {
+	if(fm == null) throw new Error("No fontmetrics");
+	if(ind > s.length()) {
+	    // XXX What to do?
+	    return x + xoffs + fm.stringWidth(s);
+	}
+	return x + xoffs + fm.stringWidth(s.substring(0, ind)) ;
+    }
+
+    public void render(Graphics g, int mx, int my, int md, int mw, int mh) {
+	Shape oldClip = g.getClip();
+	g.clipRect(mx, my, mw, mh);
+	int ty = my + (mh-fh)/2 + fasc;
+	g.setFont(f);
+	g.drawString(s, mx+xoffs, ty);
+	g.setClip(oldClip);
+    }
+
+    public CellFlob1(int x, int y, int d, int w, int h, 
+	    ZZCell c, ZZCell strCell, String s,
+	    Font f, FontMetrics fm) {
+	super(x, y, d, w, h, c);
+
+	// Not true, since c can be the flob cell and d the referring
+	// cell.
+	// this.s = c.getText();
+
+	this.s = (s==null? "" : s); 
+	this.strCell = strCell;
+
+	this.f = f;
+	this.fm = fm;
+
+	this.fh = fm.getAscent()+fm.getDescent();
+	this.fasc = fm.getAscent()+fm.getLeading();
+	this.sw = fm.stringWidth(this.s);
+    }
+
+    public Object hit(int x0, int y0) { 
+	if(!insideRect(x0, y0)) return null;
+	// Search for the right position in the string.
+	// We return a virtual cursor.
+	int ind = ZZUtil.findStringHit(s, x0-x-xoffs, fm);
+
+	return new ZZCursorVirtual(strCell, ind);
+    }
+
+}
+