java - JList/JTable as button panel -

im make new application, , stumbled on cool sidebar (button-panel) try add application (its left-sidebar on spotify). thing im curious about, principble (take @ picture attached).
in top theres 3 buttons (i assume either jlist or jtable items).

in middle have "your music" header (jlabel maybe??)

have new playlist (jbutton)

, playlist list (jlist or jtable?)

interresting things know is:

firstly, 3 jlist (playlistlist, applist , yourmusiclist, assume jlists) share same jscrollpane, , therefor jlist/jtables(or whatever is) have change size (height) depended on amount of items contains. (for instance: playlist list change height dependen on if have 3 or 17 playlists.)

secondly: managed add buttons, labels, jlists in same jpanel, not figure out how give them shared jscrollpane (the problem occured when tried give 2 jlists same scrollpane).

think, use wrong layoutmanager jpanel items should contained in, , use wrong kind of component (jlist, jtable). if theres swing component called jsidebar or something, great!

well, thats it! theres no code example, since woudlnt benefit in way

regards oliver

[...] not figure out how give them shared jscrollpane (the problem occured when tried give 2 jlists same scrollpane).

you can add components jpanel , set 1 jscrollpane view port. take how use scroll panes tutorial.

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if theres swing component called jsidebar or something, great!

not provided default it's extremely easy make own scrollable side-bar jpanel , using boxlayout. check out tutorials: how use boxlayout. instance:

import java.awt.borderlayout; import java.awt.graphics; import javax.swing.box; import javax.swing.boxlayout; import javax.swing.jcomponent; import javax.swing.jpanel; import javax.swing.jscrollpane;  /**  * @author dic19  */ public class jsidebar extends jcomponent {      private final jpanel content;      public jsidebar(boolean scrollable) {         super();          content = new jpanel();         content.setlayout(new boxlayout(content, boxlayout.page_axis));          this.setlayout(new borderlayout());          if(scrollable) {             this.add(new jscrollpane(content));         } else {             this.add(content);         }      }      /**      * adds component side bar.      *       * @param comp component.      * @param alignment 1 of {@code component.left_alignment, component.center_alignment, component.right_alignment}      *       * @see java.awt.component#left_alignment      * @see java.awt.component#center_alignment      * @see java.awt.component#right_alignment      */     public void additem(jcomponent comp, float alignment) {         comp.setalignmentx(alignment);         content.add(comp);         if(content.isshowing()) {             revalidate();             repaint();         }     }      /**      * adds vertical space side bar.      * @param height height of vertical space.      */     public void addverticalspace(int height) {         content.add(box.createverticalstrut(height));     }      @override     protected void paintcomponent(graphics g) {         super.paintcomponent(g);          graphics graphics = g.create();         graphics.setcolor(getbackground());         graphics.fillrect(0, 0, getwidth(), getheight());         graphics.dispose();     } } 

and here example of use based on case:

jlabel appfinderlabel = new jlabel("appfinder");         jlabel musicxmatchlabel = new jlabel("musicxmatch"); jlabel tunewikilabel = new jlabel("tunewiki");  jlabel yourmusiclabel = new jlabel("your music"); jlabel songslabel = new jlabel("songs"); jlabel albumslabel = new jlabel("albums"); jlabel artistslabel = new jlabel("artists"); jlabel localfileslabel = new jlabel("local files");  /*   * set icons, background , stuff if need  * option use undecorated jbuttons instead of jlabels  */  jsidebar sidebar = new jsidebar(true); sidebar.additem(appfinderlabel, component.left_alignment); sidebar.additem(musicxmatchlabel, component.left_alignment); sidebar.additem(tunewikilabel, component.left_alignment);  sidebar.addverticalspace(20);  sidebar.additem(yourmusiclabel, component.left_alignment); sidebar.additem(songslabel, component.left_alignment); sidebar.additem(albumslabel, component.left_alignment); sidebar.additem(artistslabel, component.left_alignment); sidebar.additem(localfileslabel, component.left_alignment); 

screenshot

please note scrollbar: