Computer Shopper 201/DPCS1104.ISO/data1.cab/Internet_Extensions/Java/SerifMarquee/TextEvent.class

Java Class File | 2004-08-11 | 4.2 KB | 148 lines

import java.awt.Component;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Rectangle;
import java.util.StringTokenizer;

public final class TextEvent extends AnimationEvent {
   private int m_textWidth;
   private int m_textHeight;
   private int m_textDescent;
   private int m_textAscent;
   private Font m_font;
   private String m_text;
   private int m_position = 0;
   private int m_direction = 0;
   private int m_yPos;

   public void drawFrame(Graphics g) {
      int x = 0;
      if (this.m_direction == 0) {
         x = (int)((long)(-this.m_textWidth) + super.m_xOffset / 16L);
      } else {
         x = (int)((long)super.m_animation.m_size.width - super.m_xOffset / 16L);
      }

      g.setColor(super.m_colour);
      g.setFont(this.m_font);
      g.drawString(this.m_text, x, this.m_yPos);
   }

   public void initFromParams(String params) {
      super.initFromParams(params);
      StringTokenizer st = new StringTokenizer(params, ";");
      String szToken = st.nextToken();
      int nColon = szToken.indexOf(58);
      String fontName = "ARIAL";
      int fontSize = 72;
      int fontStyle = 0;
      if (nColon != -1) {
         String szName = szToken.substring(0, nColon).toUpperCase();
         String szValue = szToken.substring(nColon + 1);
         if (!szName.equals("TYPE") || !szValue.equals("TEXT")) {
            return;
         }
      }

      while(st.hasMoreTokens()) {
         szToken = st.nextToken();
         nColon = szToken.indexOf(58);
         if (nColon != -1) {
            String var17 = szToken.substring(0, nColon).toUpperCase();
            String var18 = szToken.substring(nColon + 1);
            if (var17.equals("TEXT")) {
               this.m_text = var18;
            } else if (var17.equals("FONT")) {
               fontName = var18;
            } else if (var17.equals("STYLE")) {
               if (var18.equals("BOLD")) {
                  ++fontStyle;
               } else if (var18.equals("ITALIC")) {
                  fontStyle += 2;
               } else if (var18.equals("BOLDITALIC")) {
                  fontStyle += 3;
               }
            } else if (var17.equals("SIZE")) {
               fontSize = Integer.valueOf(var18);
            } else if (var17.equals("POSITION")) {
               if (var18.equals("TOP")) {
                  this.m_position = 0;
               } else if (var18.equals("MIDDLE")) {
                  this.m_position = 1;
               } else if (var18.equals("BOTTOM")) {
                  this.m_position = 2;
               }
            } else if (var17.equals("DIRECTION")) {
               if (var18.equals("RIGHTWARDS")) {
                  this.m_direction = 0;
               } else if (var18.equals("LEFTWARDS")) {
                  this.m_direction = 1;
               }
            }
         }
      }

      this.m_font = new Font(fontName, fontStyle, fontSize);
      Image imTemp = super.m_component.createImage(1, 1);
      Graphics grTemp = imTemp.getGraphics();
      grTemp.setFont(this.m_font);
      FontMetrics fm = grTemp.getFontMetrics();
      this.m_textWidth = fm.stringWidth(this.m_text);
      this.m_textAscent = fm.getMaxAscent();
      this.m_textDescent = fm.getMaxDescent();
      if (this.m_position == 0) {
         this.m_yPos = this.m_textAscent;
      } else if (this.m_position == 1) {
         this.m_yPos = this.m_textAscent + (super.m_animation.m_size.height - this.m_textAscent - this.m_textDescent) / 2;
      } else if (this.m_position == 2) {
         this.m_yPos = super.m_animation.m_size.height - this.m_textDescent;
      }

      grTemp.dispose();
   }

   public TextEvent(Component component, Animation anim) {
      super(component, anim);
   }

   public String getUrl(int mx, int my) {
      int x = 0;
      int y = 0;
      if (this.m_direction == 0) {
         x = (int)((long)(-this.m_textWidth) + super.m_xOffset / 16L);
      } else {
         x = (int)((long)super.m_animation.m_size.width - super.m_xOffset / 16L);
      }

      if (this.m_position == 0) {
         y = 0;
      } else if (this.m_position == 1) {
         y = (super.m_animation.m_size.height - this.m_textAscent - this.m_textDescent) / 2;
      } else if (this.m_position == 2) {
         y = super.m_animation.m_size.height - this.m_textAscent - this.m_textDescent;
      }

      Rectangle rect = new Rectangle(x, y, this.m_textWidth, this.m_textAscent + this.m_textDescent);
      return rect.inside(mx, my) ? super.m_url : null;
   }

   public void incFrame() {
      super.incFrame();
      int x = 0;
      if (this.m_direction == 0) {
         x = (int)((long)(-this.m_textWidth) + super.m_xOffset / 16L);
         if (x > super.m_animation.m_size.width) {
            super.m_xOffset = 0L;
         }
      } else {
         x = (int)((long)super.m_animation.m_size.width - super.m_xOffset / 16L);
         if (x < -this.m_textWidth) {
            super.m_xOffset = 0L;
         }
      }

   }
}