Textlog.java

/*
 *  This file is part of the Haven & Hearth game client.
 *  Copyright (C) 2009 Fredrik Tolf <fredrik@dolda2000.com>, and
 *                     Björn Johannessen <johannessen.bjorn@gmail.com>
 *
 *  Redistribution and/or modification of this file is subject to the
 *  terms of the GNU Lesser General Public License, version 3, as
 *  published by the Free Software Foundation.
 *
 *  This program 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
 *  GNU General Public License for more details.
 *
 *  Other parts of this source tree adhere to other copying
 *  rights. Please see the file `COPYING' in the root directory of the
 *  source tree for details.
 *
 *  A copy the GNU Lesser General Public License is distributed along
 *  with the source tree of which this file is a part in the file
 *  `doc/LPGL-3'. If it is missing for any reason, please see the Free
 *  Software Foundation's website at <http://www.fsf.org/>, or write
 *  to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 *  Boston, MA 02111-1307 USA
 */

package haven;

import java.awt.Color;
import java.awt.font.TextAttribute;
import java.util.LinkedList;
import java.util.List;

public class Textlog extends Widget {
	public int maxLines = 150;
	static Tex texpap = Resource.loadtex("gfx/hud/texpap");
	static Tex schain = Resource.loadtex("gfx/hud/schain");
	static Tex sflarp = Resource.loadtex("gfx/hud/sflarp");
	static RichText.Foundry fnd = new RichText.Foundry(TextAttribute.FAMILY, "Sans Serif", TextAttribute.SIZE, 12, TextAttribute.FOREGROUND,
			Color.BLACK);
	List<Text> lines;
	int maxy, cury;
	int margin = 3;
	boolean sdrag = false;
	public boolean drawbg = true;
	public Color defcolor = Color.BLACK;

	static {
		Widget.addtype("log", new WidgetFactory() {
			public Widget create(Coord c, Widget parent, Object[] args) {
				return (new Textlog(c, (Coord) args[0], parent));
			}
		});
	}

	public void draw(GOut g) {
		Coord dc = new Coord();
		if (drawbg)
			for (dc.y = 0; dc.y < sz.y; dc.y += texpap.sz().y) {
				for (dc.x = 0; dc.x < sz.x; dc.x += texpap.sz().x) {
					g.image(texpap, dc);
				}
			}
		g.chcolor();
		int y = -cury;
		synchronized (lines) {
			for (Text line : lines) {
				int dy1 = sz.y + y;
				int dy2 = dy1 + line.sz().y;
				if ((dy2 > 0) && (dy1 < sz.y))
					g.image(line.tex(), new Coord(margin, dy1));
				y += line.sz().y;
			}
		}
		if (maxy > sz.y) {
			int fx = sz.x - sflarp.sz().x;
			int cx = fx + (sflarp.sz().x / 2) - (schain.sz().x / 2);
			for (y = 0; y < sz.y; y += schain.sz().y - 1)
				g.image(schain, new Coord(cx, y));
			double a = (double) (cury - sz.y) / (double) (maxy - sz.y);
			int fy = (int) ((sz.y - sflarp.sz().y) * a);
			g.image(sflarp, new Coord(fx, fy));
		}
	}

	public Textlog(Coord c, Coord sz, Widget parent) {
		super(c, sz, parent);
		lines = new LinkedList<Text>();
		maxy = cury = 0;
	}

	public void append(String line, Color col) {
		Text rl;
		if (col == null)
			col = defcolor;

		line = RichText.Parser.quote(line);
		if (Config.use_smileys) {
			line = Config.mksmiley(line);
		}
		rl = fnd.render(line, sz.x - (margin * 2) - sflarp.sz().x, TextAttribute.FOREGROUND, col, TextAttribute.SIZE, 12);
		synchronized (lines) {
			lines.add(rl);
			if ((maxLines > 0) && (lines.size() > maxLines)) {
				Text tl = lines.remove(0);
				int dy = tl.sz().y;
				maxy -= dy;
				cury -= dy;
			}
		}
		if (cury == maxy)
			cury += rl.sz().y;
		maxy += rl.sz().y;
	}

	public void append(String line) {
		append(line, null);
	}

	public void uimsg(String msg, Object... args) {
		if (msg == "apnd") {
			append((String) args[0]);
		}
	}

	public boolean mousewheel(Coord c, int amount) {
		cury += amount * 20;
		if (cury < sz.y)
			cury = sz.y;
		if (cury > maxy)
			cury = maxy;
		return (true);
	}

	public boolean mousedown(Coord c, int button) {
		if (button != 1)
			return (false);
		int fx = sz.x - sflarp.sz().x;
		int cx = fx + (sflarp.sz().x / 2) - (schain.sz().x / 2);
		if ((maxy > sz.y) && (c.x >= fx)) {
			sdrag = true;
			ui.grabmouse(this);
			mousemove(c);
			return (true);
		}
		return (false);
	}

	public void mousemove(Coord c) {
		if (sdrag) {
			double a = (double) (c.y - (sflarp.sz().y / 2)) / (double) (sz.y - sflarp.sz().y);
			if (a < 0)
				a = 0;
			if (a > 1)
				a = 1;
			cury = (int) (a * (maxy - sz.y)) + sz.y;
		}
	}

	public void setprog(double a) {
		if (a < 0)
			a = 0;
		if (a > 1)
			a = 1;
		cury = (int) (a * (maxy - sz.y)) + sz.y;
	}

	public boolean mouseup(Coord c, int button) {
		if ((button == 1) && sdrag) {
			sdrag = false;
			ui.grabmouse(null);
			return (true);
		}
		return (false);
	}
}