Your Web Site Creator/Your Web Site Creator.iso/WebSite/data1.cab/Program_Executable_Files/Classes/STCANVA2.CLA

Java Class File | 1999-01-13 | 4.4 KB | 185 lines

import java.applet.Applet;
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.ImageObserver;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;

public class ScrollTextCanvas2 extends Canvas implements Runnable {
   Thread theThread;
   String textData;
   String[] textLines;
   Image osImage;
   Graphics osg;
   String urlPath;
   Color bkColor;
   Image bkImage;
   int speed;
   int currentY;
   int textHeight;
   int lineCount;
   int increment;
   URL theURL;
   Font textFont;

   public void update(Graphics var1) {
      if (this.osImage == null) {
         this.osImage = ((Component)this).createImage(((Component)this).size().width, ((Component)this).size().height);
         this.osg = this.osImage.getGraphics();
      }

      this.osg.setColor(((Component)this).getBackground());
      this.osg.fillRect(0, 0, ((Component)this).size().width, ((Component)this).size().height);
      if (this.bkImage != null) {
         int var2 = this.bkImage.getWidth(this);
         int var3 = this.bkImage.getHeight(this);
         int var4 = ((Component)this).size().width / var2;
         int var5 = ((Component)this).size().height / var3;
         ++var4;
         ++var5;

         for(int var6 = 0; var6 < var5; ++var6) {
            for(int var7 = 0; var7 < var4; ++var7) {
               this.osg.drawImage(this.bkImage, var7 * var2, var6 * var3, this);
            }
         }
      }

      this.osg.setColor(Color.black);
      if (this.textLines != null && this.textLines.length > 0) {
         FontMetrics var8 = ((Component)this).getFontMetrics(((Component)this).getFont());
         if (var8 != null) {
            this.textHeight = var8.getHeight();

            for(int var9 = 0; var9 < this.textLines.length; ++var9) {
               this.osg.drawString(this.textLines[var9], 0, this.currentY + (var9 + 1) * this.textHeight);
            }
         }
      }

      var1.drawImage(this.osImage, 0, 0, (ImageObserver)null);
   }

   public ScrollTextCanvas2(Applet var1, int var2) {
      this.GetParameters(var1, var2);
      if (this.urlPath.length() > 0) {
         try {
            this.theURL = new URL(this.urlPath);
            Object var3 = this.theURL.getContent();
            this.textData = var3.toString();
            this.BuildLinesOfText();
         } catch (MalformedURLException var4) {
            System.out.println(((Throwable)var4).getMessage());
         } catch (IOException var5) {
            System.out.println(((Throwable)var5).getMessage());
         }
      }
   }

   void GetParameters(Applet var1, int var2) {
      String var3 = var1.getParameter("scrollTextBkColor" + var2);
      this.bkColor = AppletParam2.GetColor(var3, (Color)null);
      if (this.bkColor != null) {
         ((Component)this).setBackground(this.bkColor);
      }

      var3 = var1.getParameter("scrollTextBkImage" + var2);
      this.bkImage = var1.getImage(var1.getCodeBase(), var3);
      var3 = var1.getParameter("scrollTextFile" + var2);
      this.urlPath = AppletParam2.GetString(var3, "");
      var3 = var1.getParameter("scrollTextSpeed" + var2);
      this.speed = AppletParam2.GetInt(var3, 250);
      var3 = var1.getParameter("scrollTextIncrement" + var2);
      this.increment = AppletParam2.GetInt(var3, 2);
      var3 = var1.getParameter("scrollTextFont" + var2);
      this.textFont = AppletParam2.GetJavaFont(var3);
      ((Component)this).setFont(this.textFont);
   }

   void BuildLinesOfText() {
      int var1 = this.textData.length();
      this.lineCount = 0;

      for(int var2 = 0; var2 < var1; ++var2) {
         char var3 = this.textData.charAt(var2);
         if (var3 != '\r' && var3 == '\n') {
            ++this.lineCount;
         }
      }

      if (this.textData.charAt(var1 - 1) != '\r' && this.textData.charAt(var1 - 1) != '\n') {
         ++this.lineCount;
      }

      if (this.lineCount != 0) {
         this.textLines = new String[this.lineCount];
         int var8 = 0;
         int var4 = 0;
         int var5 = 0;

         for(String var6 = ""; var5 < var1; ++var5) {
            char var7 = this.textData.charAt(var5);
            if (var7 != '\r') {
               if (var7 != '\n') {
                  var6 = this.textData.substring(var4, var5 + 1);
               } else {
                  this.textLines[var8] = var6;
                  var4 = var5 + 1;
                  var5 = var4;
                  ++var8;
               }
            }
         }

      }
   }

   public synchronized void reshape(int var1, int var2, int var3, int var4) {
      this.osImage = null;
      this.osg = null;
      this.currentY = var4;
      super.reshape(var1, var2, var3, var4);
   }

   public Dimension minimumSize() {
      return new Dimension(10, 10);
   }

   public Dimension preferredSize() {
      return new Dimension(10, 10);
   }

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

   public void Stop() {
      this.theThread.stop();
      this.theThread = null;
   }

   public void run() {
      try {
         while(true) {
            ((Component)this).repaint();
            this.currentY -= this.increment;
            if (this.currentY < -(this.textHeight * this.lineCount)) {
               this.currentY = ((Component)this).size().height;
            }

            Thread.sleep((long)this.speed);
         }
      } catch (InterruptedException var2) {
         System.out.println(((Throwable)var2).getMessage());
      }
   }
}