[JAVA100 example]073, pass parameter

Import java.awt.*;


import java.applet.*;


/**


* <p>title: Shadowed text </p>


* <p>description: Use applets and graphics to implement a text-mobile ad. </p>


* <p>copyright:copyright (c) 2003</p>


* <p>Filename:ShadowText.java</p>


* @version 1.0


*/


public class Shadowtext extends Applet implements Runnable


{


Private Image img;


private Image Offi;


private Graphics OFFG;


private thread thread = NULL;


private int height,width;


private String text;


private int fontsize;


private font font;


private int TextColor, BackColor, Shadowcolor;


/**


*<br> Method Description: Applet initialization, browser loading applet is called.


*<br> input Parameters:


*<br> return type:


*/


public void init ()


　{　


width = this.size (). width;


height = this.size (). Height;


//Get display information


string s = new string (GetParameter ("Text"));


　


Text = new String ("Hello");


if (s!= null)


Text = s;


//Get font size


fontsize = 30;


s = new String (GetParameter ("fontsize"));


if (s!= null)


fontsize = Integer.parseint (s);


//Get font color


s = getparameter ("Fore");


TextColor = (s==null)? 0x000000:integer.parseint (S, 16);


//Get background color


s = getparameter ("Back");


BackColor = (s==null)? 0x000000:integer.parseint (S, 16);


//Get shadow color


s = getparameter ("Shadow");


Shadowcolor = (s==null)? 0x000000:integer.parseint (S, 16);


//Set background color


This.setbackground (New Color (BackColor));


//Use graphics to create a picture


img = createimage (width+300,height);


Graphics temp = img.getgraphics ();


Temp.setcolor (New Color (BackColor));


Temp.fillrect (0,0,width,height);


Temp.setcolor (New Color (Shadowcolor));


font = new Font ("Timesroman", font.bold,fontsize);


Temp.setfont (font);


temp.drawstring (TEXT,10,HEIGHT*3/4);


Temp.setcolor (New Color (TextColor));


temp.drawstring (TEXT,10-3,HEIGHT*3/4-3);


　


//Constructs controllable picture objects


offi = createimage (width,height);


OFFG = Offi.getgraphics ();


　


　}


/**


*<br> Method Description: Overload the Start () method, start the thread


*<br> input Parameters:


*<br> return type:


*/


public void Start ()


　{


if (thread = = null)


　　{


thread = new Thread (this);


Thread.Start ();


　　}


　}


/**


*<br> Method Description: Thread body. Draw Screen


*<br> input Parameters:


*<br> return type:


*/


public void Run ()


　{


int x=width;


while (thread!= null)


　　{


Try


　　　{


offg.drawimage (img,x,0,this);


repaint ();


Thread.Sleep (20);


　　　}


catch (Interruptedexception e) {}


x-=3;


if (x <-img.getwidth (this))


　　　{


x = width;


　　　}


}


　}


/**


*<br> Method Description: Appletg Update screen Call method


*<br> input parameter: Graphics g drawing Object


*<br> return type:


*/


public void Update (Graphics g)


　{


Paint (g);


　}


/**


*<br> Method Description: How the applet draws the screen


*<br> input Parameters:


*<br> return type:


*/


public void Paint (Graphics g)


　{


g.drawimage (offi,0,0,this);


　}


}