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Modules/daytimedemo/DayTimeDemo.zob
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174
Modules/daytimedemo/DayTimeDemo.zob
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/*
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DayTimeDemo.zob
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*
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* Copyright (c) 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.module;
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import org.gzigzag.*;
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import java.awt.*;
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import java.util.*;
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import java.io.*;
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/** A simple raster showing times of day along a circle.
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* The structure is described along three dimensions:
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* hierarchy, sibling and cross-reference (d.1, d.2 and d.3 by default).
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* On these, the hierarchy is arranged as a corner list with an empty
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* corner cell, and the cross-references are simply siblings
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* connected.
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* <p>
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* The structure is specified as a rank on d.2 of d.1 lists:
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* start, end, type, text. Type's root clone will have the color
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* of the type on d.1.
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* <p>
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* The whole rank on d.2 is read.
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*/
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public class DayTimeDemo implements FlobView, ZOb {
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public static boolean dbg = false;
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static final void p(String s) { if(dbg) System.out.println(s); }
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static final void pa(String s) { System.out.println(s); }
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static public ZZModule module = new ZZModule() {
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public ZOb newZOb(String id) {
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if(id.equals("R"))
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return new DayTimeDemo();
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if(id.equals("C"))
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return new ClockCellView();
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return null;
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}
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};
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STRUCTPARAMS {
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Font txtfont
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= new Font("Serif", Font.BOLD, 14);
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Font clkfont
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= new Font("SansSerif", Font.PLAIN, 11);
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}
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FontMetrics txtfm, clkfm;
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INITIALIZE {
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txtfm = FONTMETRICS(txtfont);
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clkfm = FONTMETRICS(clkfont);
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}
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static final String next = "d.2";
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static final String hier = "d.1";
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static final String cross = "d.3";
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static final int time2deg(String time) {
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int i = time.indexOf(":");
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if(i < 0) return 0;
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String t1 = time.substring(0,i);
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String t2 = time.substring(i+1);
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int h = -1;
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int m = -1;
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try {
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h = Integer.parseInt(t1);
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m = Integer.parseInt(t2);
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} catch(NumberFormatException e) {
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System.out.println("Exc: "+e);
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}
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return -(int)(360 * (h*60.0 + m) / (24*60)) - 90;
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}
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static final Point deg2pt(int deg, int w, int h) {
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return new Point((int)(w/2*Math.cos(deg * Math.PI / 180)),
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-(int)(h/2*Math.sin(deg * Math.PI / 180)));
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}
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public void raster(FlobSet into, FlobFactory fact,
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ZZCell view, String[] dims, ZZCell accursed) {
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Dimension s = into.getSize();
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final int x = s.width / 10;
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final int y = s.height / 10;
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final int w = s.width - 2 * x;
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final int h = s.height - 2 * y;
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// Clock face.
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into.add(new Renderable() {
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{ d = 50; }
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public void render(Graphics g) {
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Color old = g.getColor();
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g.setColor(Color.black);
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g.setFont(clkfont);
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for(int i=0; i<24; i++) {
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int and = time2deg(i+":00");
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// g.fillArc(x, y, w, h, and, 1);
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Point p = deg2pt(and, w, h);
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p.x *= 1.05;
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p.y *= 1.05;
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p.translate(x+w/2, y+h/2);
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g.drawLine(x+w/2, y+h/2, p.x, p.y);
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if(i % 2 == 0) {
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String str = i+":00";
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g.drawString(str, p.x - clkfm.stringWidth(str)/2 , p.y);
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}
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}
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g.setColor(old);
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}
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});
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for(
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ZZCell cur = accursed.h("d.1", -1).h("d.2", -1);
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cur != null;
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cur = cur.s("d.2", 1)) {
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ZZCell c = cur;
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String start = c.getText(); c = c.s("d.1", 1);
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String end = c.getText(); c = c.s("d.1", 1);
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ZZCell meet = c.h("d.clone", -1).s("d.1", 1);
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String col = "0xffffff";
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if(meet != null) col = meet.getText();
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c = c.s("d.1", 1);
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final String text = c.getText();
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final int sang = time2deg(start);
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final int eang = time2deg(end);
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final Color color = Color.decode(col);
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// now, render it.
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into.add(new Renderable() {
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{ d = 50; }
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public void render(Graphics g) {
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g.setColor(color);
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g.fillArc(x, y, w, h, sang, eang-sang);
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}});
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into.add(new Renderable() {
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{ d = 45; }
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public void render(Graphics g) {
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g.setFont(txtfont);
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Point p = deg2pt((sang+eang)/2, w, h);
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p.x *= 0.8;
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p.y *= 0.8;
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p.translate(x+w/2, y+h/2);
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g.setColor(Color.black);
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g.drawString(text, p.x, p.y);
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g.fillOval(p.x-8, p.y-8, 8, 8);
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}});
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}
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}
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}
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// vim: set syntax=java :
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