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San Francisco Restaurants with ICEBrowser Support

• Press and set Restuarant action button.
• Move the mouse cursor to the interested restaurant. The cursor type will be changed and there is the restaurant name will be shown in the status window of the browser.
• Click the interested restaurant, JShape will switch to the ICEBrowser window to display the HTML document of the specified restaurant.

Technical Discussions

• What is ICEBrowser? ICEBrowser is a Java HTML display component from ICESoft. It's free for indiviual or educational usages. Please visit http://www.icesoft.no for more information.
• The applet parameters used in this demo are following :

  
  <applet code="jshape.class" width=600 height=450 archive="jshape.zip,icebrowserbean.jar">
  <param name="project" value="San Francisco Restaurants">
  <param name="external" value="restaurant2">
  <param name="zoomxmin" value="94">
  <param name="zoomymin" value="110">
  <param name="zoomxmax" value="577">
  <param name="zoomymax" value="397">
  <param name="count" value="2">
  
  <param name="layer1" value="url/restaurant.shp">
  <param name="title1" value="Restaurants">
  <param name="info1" value="url/restaurant.txt">
  <param name="fcolor1" value="red">
  <param name="lcolor1" value="red">
  <param name="size1" value="8">
  
  <param name="layer2" value="url/city.gif">
  <param name="title2" value="City Map">
  <param name="xmin2" value="0">
  <param name="ymin2" value="0">
  <param name="xmax2" value="639">
  <param name="ymax2" value="479">
  </applet>

• The source code of restaurant2.java :

  
  import java.awt.*;
  
  class restaurant2 extends Link
  {
    public boolean active;
  
    public int touch(int radius)
    {
      DPoint ScrDp=jshape.GetMouseScrDp();
      DPoint ScrMinDp=new DPoint(ScrDp.x-radius,ScrDp.y+radius);
      DPoint ScrMaxDp=new DPoint(ScrDp.x+radius,ScrDp.y-radius);
      DPoint MapMinDp=jshape.ScrToMapDp(ScrMinDp);
      DPoint MapMaxDp=jshape.ScrToMapDp(ScrMaxDp);
      for (int i=1;i<=jshape.GetFeatureCount(1);i++)
      {
        DPoint FeatureDp=jshape.GetFeatureExtent(1,i).min;
        if ((FeatureDp.dx >= MapMinDp.dx) && (FeatureDp.dx <= MapMaxDp.dx) &&
            (FeatureDp.dy >= MapMinDp.dy) && (FeatureDp.dy <= MapMaxDp.dy))
        {
          return (i);
        };
      };
      return (0);
    }
  
    public int dispatch(String command,String argument)
    {
      if (command.equals("init0"))
      {
        Language.ButtonUserPanel=false;
        Language.ButtonUser1Text="Restaurant";
      };
  
      if (command.equals("reset"))
      {
        Language.ButtonUserPanel=false;
        Language.ButtonUser1Text="";
      };
  
      if (command.equals("init"))
      {
        active=false;
        jshape.SetPopupLabelFont(new Font("TimesRoman",Font.PLAIN,12));
        jshape.SetPopupLabelColor(new Color(128,0,0));
      };
  
      if (command.equals("paint"))
      {
        Graphics g=jshape.GetPaintGraphics();
        g.setColor(new Color(128,0,0));
        g.drawString("(c) shiuhlin",4,16);
      };
  
      if (command.equals("user1"))
      {
        if (argument.equals("1"))
        {
          jshape.LockUserButton();
          active=true;
          jshape.BoldButton(jshape.GetUserButton());
        }
        else
        {
          active=false;
          jshape.PlainButton(jshape.GetUserButton());
          jshape.SetCursor(Cursor.DEFAULT_CURSOR);
        };
      };
  
      if (command.equals("mousemove"))
      {
        int index;
  
        if (active == true)
        {
          if ((index=touch(4)) != 0)
          {
            jshape.SetCursor(Cursor.HAND_CURSOR);
            DPoint ScrDp=jshape.GetMouseScrDp();
            jshape.ShowPopupLabel(ScrDp.x+8,ScrDp.y+4,jshape.GetAttribute(1,index,1));
            jshape.ShowBrowserStatus(jshape.GetAttribute(1,index,1));
          }
          else
          {
            jshape.SetCursor(Cursor.DEFAULT_CURSOR);
            jshape.HidePopupLabel();
            jshape.ShowBrowserStatus("");
          };
        };
      };
  
      if (command.equals("mousedown"))
      {
        int index;
  
        if (active == true)
        {
          if ((index=touch(4)) != 0)
          {
            String URLStr=jshape.GetDocumentBase()+"url/html/";
            URLStr+=jshape.GetAttribute(1,index,2);
            URLStr+=".htm";
            jshape.ShowBrowserStatus(URLStr);
            jshape.GoToICE(URLStr);
            jshape.HidePopupLabel();
          };
       };
      };
  
      return (0);
    }
  }

• There are three new ICEBrowser related APIs supported in JShape :
  • void GoToICE(String url_string)

    
    example :  jshape.GoToICE("http://www.xyz.com");

  • void ShowICE(String html_string,String document_base_url_string)

    
    example :  jshape.ShowICE("<html><body>Hello, World</body></html>","http://www.xyz.com");

  • void ShowICE(String html_string)

    
    example :  jshape.ShowICE("<html><body>Hello, World</body></html>");