Set up wallpaper for jedit (add wallpaper for jedit)

1). Premises (condition) + jedit4.2final+ jdk 1.42). Step (steps) 1. Add this in Org.gjt.sp.jedit.textarea.TextAreaPainterin method Paintcomponent (...) after:        extensionmgr.paintscreenlinerange (TextArea, GFX, firstinvalid,                 lastinvalid, y, height);add:         {//Paint wallpaper after-should be paint        rectangle rect = This.getvisiblerect ();        wallpaper.paintwallpaper (GFX, Rect.x, Rect.y, rect.width,                rect.width, this);         }        2. Add in org.gjt.sp.jedit.textarea.jedittextarea        //    {{{ Changewallpaperdialog () method   //for Change the wallpaper    /**         * Displays the ' changewallpaperdialog ' dialog box.     * @author neoedmund & nbsp   */    public void Changewallpaperdialog ()     {            if (Wallpaper.changewallpaper (this)) {            repaint ();                }     }}}3. Add new Class org.gjt.sp.jedit.textarea.wallpaper/* * Created on 2005-3-26 */package Org.gjt.sp.jedit.textarea;import Java.awt.alphacomposite;import Java.awt.composite;import Java.awt.Graphics2D; Import Java.awt.image.bufferedimage;import java.io.file;import java.io.fileinputstream;import java.io.IOException; Import Java.io.inputstream;import Javax.imageio.imageio;import Javax.swing.jcomponent;import javax.swing.jfilechooser;/** * @author neoe */public class wallpaper {        static bufferedimage pic;    private static final String defalut_img = "org/gjt/sp/jedit/icons/ Wallpaper.jpg ";    static{        system.out.println (" Hello Wallpaper ");        loadpic (classloader                .getsystemresourceasstream (defalut_img));             }        static alphacomposite alpha = alphacomposite.getinstance (             alphacomposite.src_over, 0.2f);    /**      * @param gfx     * @param width     * @param height     */&NBSP ;   public static void Paintwallpaper (graphics2d g, int cx, int cy, int width, int height, jcomponent view) {&NB sp;       if (pic==null) {     &nbsP      return;        }        int y = 0 ;        int w = pic.getwidth ();        int h = Pic.getheight ();        composite old = G.getcomposite ();         g.setcomposite (Alpha);        while (true) {             int x = 0;            while (true) { & nbsp              g.drawimage (pic, cx+x, cy+y, view);                 x + w;                if (w <= 0 | | x >= width) {             & nbsp      break;                }            }            y + + h;            if (H <= 0 | | Y >= height) {                break;             }        }         G.setcomposite (old);    }    /**     * @param in     */     private static void Loadpic (InputStream in) {        try {            pic = Imageio.read (in);        } catch ( IOException e) {                         e.printstacktrace ();        }            }    static File f;     /**     *      */    public static Boolean Changewallpaper ( JComponent parent) {        jfilechooser JFC = new JFileChooser (f);    & nbsp;   int ReturnVal = jfc.showopendialog (parent);        if (returnval = = jfilechooser.approve_option) {            f = Jfc.getselectedfile ();             try {                loadpic (New FileInputStream (f));                 return true;           &nbsp} catch (IOException E1) {                 e1.printStackTrace ();            }        }         return false;    }}4. Copy default wallpaper whatever you to org/gjt/sp/jedit/icons/wallpaper.jpg5. Add this into ORG\GJT p\jedit\actions.xml<action name= "Change-wallpaper" >    <CODE>         textarea.changewallpaperdialog ();    </CODE></ACTION> 6. Change Org\gjt p\jedit\jedit_gui.props, add "change-wallpaper" in tool bar#{{{tool Barview.toolbar=new-file Open-file Close-buffer save-print Page-setup-\    undo redo Cut Copy paste-find Find-next-new-view unsplit \     split-horizontal split-vertical-buffer-options global-options-\     Plugin-manager-help-change-wallpaper.........change-wallpaper.icon=help.png........change-wallpaper.label= Change $Wallpaper 7. Last step, rebuild SOURCE, restart JEdit, have fun. Notes:i don ' t know if it's something slowdown, but I like it:)