| /* |
| * Copyright 2004 The Apache Software Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| import java.util.*; |
| import java.awt.*; |
| import java.applet.*; |
| import java.text.*; |
| |
| /** |
| * Time! |
| * |
| * @author Rachel Gollub |
| */ |
| |
| public class Clock2 extends Applet implements Runnable { |
| Thread timer; // The thread that displays clock |
| int lastxs, lastys, lastxm, |
| lastym, lastxh, lastyh; // Dimensions used to draw hands |
| SimpleDateFormat formatter; // Formats the date displayed |
| String lastdate; // String to hold date displayed |
| Font clockFaceFont; // Font for number display on clock |
| Date currentDate; // Used to get date to display |
| Color handColor; // Color of main hands and dial |
| Color numberColor; // Color of second hand and numbers |
| |
| public void init() { |
| int x,y; |
| lastxs = lastys = lastxm = lastym = lastxh = lastyh = 0; |
| formatter = new SimpleDateFormat ("EEE MMM dd hh:mm:ss yyyy", Locale.getDefault()); |
| currentDate = new Date(); |
| lastdate = formatter.format(currentDate); |
| clockFaceFont = new Font("Serif", Font.PLAIN, 14); |
| handColor = Color.blue; |
| numberColor = Color.darkGray; |
| |
| try { |
| setBackground(new Color(Integer.parseInt(getParameter("bgcolor"),16))); |
| } catch (Exception E) { } |
| try { |
| handColor = new Color(Integer.parseInt(getParameter("fgcolor1"),16)); |
| } catch (Exception E) { } |
| try { |
| numberColor = new Color(Integer.parseInt(getParameter("fgcolor2"),16)); |
| } catch (Exception E) { } |
| resize(300,300); // Set clock window size |
| } |
| |
| // Plotpoints allows calculation to only cover 45 degrees of the circle, |
| // and then mirror |
| public void plotpoints(int x0, int y0, int x, int y, Graphics g) { |
| g.drawLine(x0+x,y0+y,x0+x,y0+y); |
| g.drawLine(x0+y,y0+x,x0+y,y0+x); |
| g.drawLine(x0+y,y0-x,x0+y,y0-x); |
| g.drawLine(x0+x,y0-y,x0+x,y0-y); |
| g.drawLine(x0-x,y0-y,x0-x,y0-y); |
| g.drawLine(x0-y,y0-x,x0-y,y0-x); |
| g.drawLine(x0-y,y0+x,x0-y,y0+x); |
| g.drawLine(x0-x,y0+y,x0-x,y0+y); |
| } |
| |
| // Circle is just Bresenham's algorithm for a scan converted circle |
| public void circle(int x0, int y0, int r, Graphics g) { |
| int x,y; |
| float d; |
| x=0; |
| y=r; |
| d=5/4-r; |
| plotpoints(x0,y0,x,y,g); |
| |
| while (y>x){ |
| if (d<0) { |
| d=d+2*x+3; |
| x++; |
| } |
| else { |
| d=d+2*(x-y)+5; |
| x++; |
| y--; |
| } |
| plotpoints(x0,y0,x,y,g); |
| } |
| } |
| |
| // Paint is the main part of the program |
| public void paint(Graphics g) { |
| int xh, yh, xm, ym, xs, ys, s = 0, m = 10, h = 10, xcenter, ycenter; |
| String today; |
| |
| currentDate = new Date(); |
| SimpleDateFormat formatter = new SimpleDateFormat("s",Locale.getDefault()); |
| try { |
| s = Integer.parseInt(formatter.format(currentDate)); |
| } catch (NumberFormatException n) { |
| s = 0; |
| } |
| formatter.applyPattern("m"); |
| try { |
| m = Integer.parseInt(formatter.format(currentDate)); |
| } catch (NumberFormatException n) { |
| m = 10; |
| } |
| formatter.applyPattern("h"); |
| try { |
| h = Integer.parseInt(formatter.format(currentDate)); |
| } catch (NumberFormatException n) { |
| h = 10; |
| } |
| formatter.applyPattern("EEE MMM dd HH:mm:ss yyyy"); |
| today = formatter.format(currentDate); |
| xcenter=80; |
| ycenter=55; |
| |
| // a= s* pi/2 - pi/2 (to switch 0,0 from 3:00 to 12:00) |
| // x = r(cos a) + xcenter, y = r(sin a) + ycenter |
| |
| xs = (int)(Math.cos(s * 3.14f/30 - 3.14f/2) * 45 + xcenter); |
| ys = (int)(Math.sin(s * 3.14f/30 - 3.14f/2) * 45 + ycenter); |
| xm = (int)(Math.cos(m * 3.14f/30 - 3.14f/2) * 40 + xcenter); |
| ym = (int)(Math.sin(m * 3.14f/30 - 3.14f/2) * 40 + ycenter); |
| xh = (int)(Math.cos((h*30 + m/2) * 3.14f/180 - 3.14f/2) * 30 + xcenter); |
| yh = (int)(Math.sin((h*30 + m/2) * 3.14f/180 - 3.14f/2) * 30 + ycenter); |
| |
| // Draw the circle and numbers |
| |
| g.setFont(clockFaceFont); |
| g.setColor(handColor); |
| circle(xcenter,ycenter,50,g); |
| g.setColor(numberColor); |
| g.drawString("9",xcenter-45,ycenter+3); |
| g.drawString("3",xcenter+40,ycenter+3); |
| g.drawString("12",xcenter-5,ycenter-37); |
| g.drawString("6",xcenter-3,ycenter+45); |
| |
| // Erase if necessary, and redraw |
| |
| g.setColor(getBackground()); |
| if (xs != lastxs || ys != lastys) { |
| g.drawLine(xcenter, ycenter, lastxs, lastys); |
| g.drawString(lastdate, 5, 125); |
| } |
| if (xm != lastxm || ym != lastym) { |
| g.drawLine(xcenter, ycenter-1, lastxm, lastym); |
| g.drawLine(xcenter-1, ycenter, lastxm, lastym); } |
| if (xh != lastxh || yh != lastyh) { |
| g.drawLine(xcenter, ycenter-1, lastxh, lastyh); |
| g.drawLine(xcenter-1, ycenter, lastxh, lastyh); } |
| g.setColor(numberColor); |
| g.drawString("", 5, 125); |
| g.drawString(today, 5, 125); |
| g.drawLine(xcenter, ycenter, xs, ys); |
| g.setColor(handColor); |
| g.drawLine(xcenter, ycenter-1, xm, ym); |
| g.drawLine(xcenter-1, ycenter, xm, ym); |
| g.drawLine(xcenter, ycenter-1, xh, yh); |
| g.drawLine(xcenter-1, ycenter, xh, yh); |
| lastxs=xs; lastys=ys; |
| lastxm=xm; lastym=ym; |
| lastxh=xh; lastyh=yh; |
| lastdate = today; |
| currentDate=null; |
| } |
| |
| public void start() { |
| timer = new Thread(this); |
| timer.start(); |
| } |
| |
| public void stop() { |
| timer = null; |
| } |
| |
| public void run() { |
| Thread me = Thread.currentThread(); |
| while (timer == me) { |
| try { |
| Thread.currentThread().sleep(100); |
| } catch (InterruptedException e) { |
| } |
| repaint(); |
| } |
| } |
| |
| public void update(Graphics g) { |
| paint(g); |
| } |
| |
| public String getAppletInfo() { |
| return "Title: A Clock \nAuthor: Rachel Gollub, 1995 \nAn analog clock."; |
| } |
| |
| public String[][] getParameterInfo() { |
| String[][] info = { |
| {"bgcolor", "hexadecimal RGB number", "The background color. Default is the color of your browser."}, |
| {"fgcolor1", "hexadecimal RGB number", "The color of the hands and dial. Default is blue."}, |
| {"fgcolor2", "hexadecimal RGB number", "The color of the seconds hand and numbers. Default is dark gray."} |
| }; |
| return info; |
| } |
| } |