Maximum CD 2003 January/maximum-cd-2003-01.iso/Software/Utilities/JPerk/jperk.exe/_SETUP.1/RTLScroll.class

Java Class File | 1997-01-13 | 4.4 KB | 177 lines

import java.applet.Applet;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Event;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Rectangle;

public class RTLScroll extends Applet implements Runnable {
   boolean gSok;
   int speed = 10;
   int jump = 1;
   int size = 14;
   int advance;
   String message = "Specify a message in the Applet parameters.";
   Font font = new Font("Times", 1, 14);
   // $FF: renamed from: x int
   int field_0;
   // $FF: renamed from: y int
   int field_1;
   Color textcolor = new Color(255);
   Color bgcolor = new Color(16777215);
   Image offscreen;
   int imagewidth;
   int imageheight;
   int stringwidth;
   int stringheight;
   int stringascent;
   Thread animator;
   boolean please_stop;

   public void start() {
      this.animator = new Thread(this);
      this.animator.start();
   }

   public void stop() {
      if (this.animator != null) {
         this.animator.stop();
      }

      this.animator = null;
   }

   public boolean mouseDown(Event e, int x, int y) {
      if (this.animator != null) {
         this.please_stop = true;
      } else {
         this.please_stop = false;
         this.start();
      }

      return true;
   }

   public void drawBackground(Graphics gr, Color c) {
      Dimension size = ((Component)this).size();
      int w = size.width;
      int h = size.height;
      gr.setColor(this.bgcolor);
      gr.fillRect(0, 0, w, h);
   }

   public void run() {
      while(!this.please_stop) {
         Dimension d = ((Component)this).size();
         if (this.offscreen == null || this.imagewidth != d.width || this.imageheight != d.height) {
            this.offscreen = ((Component)this).createImage(d.width, d.height);
            this.imagewidth = d.width;
            this.imageheight = d.height;
         }

         if (this.field_0 <= -this.stringwidth) {
            this.field_0 = d.width;
            ((Component)this).repaint();
         }

         Rectangle oldrect = new Rectangle(this.field_0, this.field_1 - this.stringascent, this.stringwidth, this.stringheight);
         this.field_0 = (this.field_0 - this.jump) % d.width;
         Rectangle newrect = new Rectangle(this.field_0, this.field_1 - this.stringascent, this.stringwidth, this.stringheight);
         Rectangle r = newrect.union(oldrect);
         Graphics g = this.offscreen.getGraphics();
         g.clipRect(r.x, r.y, r.width, r.height);
         this.paint(g);
         g = ((Component)this).getGraphics();
         g.clipRect(r.x, r.y, r.width, r.height);
         g.drawImage(this.offscreen, 0, 0, this);

         try {
            Thread.sleep((long)this.speed);
         } catch (InterruptedException var8) {
         }
      }

      this.animator = null;
   }

   public void init() {
      Dimension d = ((Component)this).size();
      String crstr = "Copyright (c) 1997 OpenCube Technologies";
      String paramStr = ((Applet)this).getParameter("Notice");
      if (paramStr != null) {
         if (paramStr.equals(crstr)) {
            this.gSok = true;
         } else {
            this.gSok = false;
         }
      } else {
         this.gSok = false;
      }

      paramStr = ((Applet)this).getParameter("jump");
      if (paramStr != null) {
         this.jump = Integer.parseInt(paramStr);
      }

      paramStr = ((Applet)this).getParameter("message");
      if (paramStr != null) {
         this.message = paramStr;
      }

      paramStr = ((Applet)this).getParameter("size");
      if (paramStr != null) {
         this.size = Integer.parseInt(paramStr);
      }

      paramStr = ((Applet)this).getParameter("font");
      if (paramStr != null) {
         this.font = new Font(paramStr, 1, this.size);
      }

      paramStr = ((Applet)this).getParameter("textcolor");
      if (paramStr != null) {
         this.textcolor = new Color(Integer.parseInt(paramStr));
      }

      paramStr = ((Applet)this).getParameter("bgcolor");
      if (paramStr != null) {
         this.bgcolor = new Color(Integer.parseInt(paramStr));
      }

      paramStr = ((Applet)this).getParameter("speed");
      if (paramStr != null) {
         this.speed = Integer.parseInt(paramStr);
      }

      if (this.gSok) {
         FontMetrics fm = ((Component)this).getFontMetrics(this.font);
         this.stringwidth = fm.stringWidth(this.message);
         this.stringheight = fm.getHeight();
         this.stringascent = fm.getAscent();
         this.advance = fm.getMaxAdvance();
         this.field_1 = (d.height + this.stringascent) / 2;
         this.field_0 = d.width;
         ((Component)this).setBackground(this.bgcolor);
      } else {
         try {
            Thread.sleep(1000L);
         } catch (InterruptedException var6) {
         }

         System.exit(0);
      }

   }

   public void paint(Graphics g) {
      this.drawBackground(g, this.bgcolor);
      g.setColor(this.textcolor);
      g.setFont(this.font);
      g.drawString(this.message, this.field_0, this.field_1);
   }
}