gzz-mirror/Modules/mbox/SingleMail.zob

/*
SingleMail.zob
 *
 *    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 Tuukka Hastrup
 */

package org.gzigzag.module.mbox;

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



/** A presentation of a single e-mail message.
 */

public class SingleMail implements FlobView, ZOb {
    public static final boolean dbg = true;
    static final void p(String s) { if (dbg) System.out.println(s); }

    STRUCTPARAMS {
	Font hfont = new Font("SansSerif", Font.PLAIN, 14);
	Font dfont = new Font("SansSerif", Font.BOLD, 14);
	Font bfont = new Font("Monospaced", Font.PLAIN, 12);

	int tabstop = 8;
    } 
    
    int headerh;
    int bodyh;
    FontMetrics hfm;
    Color headerc, datac, bodyc;
    String tabs[];

    INITIALIZE {
	headerh = (hfont.getSize() > dfont.getSize()? hfont.getSize() 
						    : dfont.getSize());
	bodyh = bfont.getSize();
	hfm = FONTMETRICS(hfont);
	headerc = datac = bodyc = Color.red;

	tabs = new String[tabstop + 1];
	tabs[0] = "";
	for (int i = 1; i < tabstop + 1; i++)
	    tabs[i] = tabs[i - 1] + '\t';
    }

    public void raster(FlobSet into, FlobFactory fact,
		       ZZCell view, String[]dims, ZZCell accursed) { 
	Dimension d = into.getSize();

	ZZCell handle = accursed.h("d.ref", -1);

	ZZCell c = handle;
	ZZCell f;
	int y = 0;
	c = c.s("d.handle", 1);
	while (c != null && y <= d.height) {
	    f = c.s("d.1", 1);
	    if (f != null)	// Header record
		y = addHeader(into, y, c, f);
	    else
		y = addBody(into, y, c);
	    c = c.s("d.handle", 1);
	}
    } 
    
    int addHeader(FlobSet into, int y, ZZCell c, ZZCell d) {
	p(into.toString() + y + c.toString() + d.toString());
	p("C: " + c.getID());
	p("D: " + d.getID());
	String field = c.getText();
	String data = d.getText();
	y += headerh;
	into.add(new TextDecor(0, y, field, headerc, hfont));
	into.add(new TextDecor(hfm.stringWidth(field) + 10, y,
				data, datac, dfont));
	return y;
    } 
    
    int addBody(FlobSet into, int y, ZZCell c) {
	String body = c.getText();
	int start = 0;
	int end = -1;
	while (end < body.length()) {	// Split into lines
	    end = body.indexOf('\n', end + 1);
	    if (end == -1)
		end = body.length();
	    y += bodyh;
	    if (start < end) {
		String line = body.substring(start, end);
		StringBuffer buf = new StringBuffer();
		int offs = 0;
		int pos = 0;
		int tab = -1;
		while (tab < line.length()) {	// Expand tabs
		    tab = line.indexOf('\t', tab + 1);
		    if (tab == -1)
			tab = line.length();
		    buf.append(line.substring(pos, tab));
		    if (tab < line.length()) {
			int tablen = tabstop - ((tab + offs) % tabstop);
			p("Tab: " + tablen);
			buf.append(tabs[tablen]);
			offs = offs + tablen - 1;
		    }
		    pos = tab + 1;
		}
		into.add(new TextDecor(0, y, new String(buf), bodyc, bfont));
	    }
	    start = end + 1;
	}
	return y;
    }
}


// vim: set syntax=java :