java - How to highlight all the text in a JTextPane? -

jtextpane1.selectall(); 

with correctly shared events, command permit highlight text in jtextpane area (i bit rusty, need not forget share "good event focus priorities" ; thank : madprogrammer)

since selectall method of jtextcomponent, jtextpane extends take wild guess , say, probably, yes.

five minutes of coding have gotten same answer yourself...

highlighting not seem appear in jtextpane area (note : use java 7)

this because jtextpane doesn't have focus, try using requestfocusinwindow bring keyboard focus jtextpane.

the jtextcomponents don't render selection highlighting when don't have focus.

for example...

import java.awt.borderlayout; import java.awt.eventqueue; import java.awt.event.actionevent; import java.awt.event.actionlistener; import javax.swing.jbutton; import javax.swing.jframe; import javax.swing.jpanel; import javax.swing.jscrollpane; import javax.swing.jtextpane; import javax.swing.uimanager; import javax.swing.unsupportedlookandfeelexception;  public class testtextpane {      public static void main(string[] args) {         new testtextpane();     }      public testtextpane() {         eventqueue.invokelater(new runnable() {             @override             public void run() {                 try {                     uimanager.setlookandfeel(uimanager.getsystemlookandfeelclassname());                 } catch (classnotfoundexception | instantiationexception | illegalaccessexception | unsupportedlookandfeelexception ex) {                 }                  final jtextpane tp = new jtextpane();                 jbutton withfocus = new jbutton("select focus");                 withfocus.addactionlistener(new actionlistener() {                     @override                     public void actionperformed(actionevent e) {                         tp.selectall();                         tp.requestfocus();                     }                 });                 jbutton withoutfocus = new jbutton("select without focus");                 withfocus.addactionlistener(new actionlistener() {                     @override                     public void actionperformed(actionevent e) {                         tp.selectall();                     }                 });                   jframe frame = new jframe("testing");                 frame.setdefaultcloseoperation(jframe.exit_on_close);                 frame.setlayout(new borderlayout());                 frame.add(new jscrollpane(tp));                 jpanel panel = new jpanel();                 panel.add(withfocus);                 panel.add(withoutfocus);                 frame.add(panel, borderlayout.south);                 frame.pack();                 frame.setlocationrelativeto(null);                 frame.setvisible(true);             }         });     }         } 

you test using

textpane.selectall(); system.out.println(textpane.getselectedtext()); 

for example...

and double clicking

import java.awt.borderlayout; import java.awt.eventqueue; import java.awt.event.actionevent; import java.awt.event.actionlistener; import java.awt.event.mouseadapter; import java.awt.event.mouseevent; import javax.swing.jbutton; import javax.swing.jframe; import javax.swing.jpanel; import javax.swing.jscrollpane; import javax.swing.jtextpane; import javax.swing.swingutilities; import javax.swing.uimanager; import javax.swing.unsupportedlookandfeelexception;  public class testtextpane {      public static void main(string[] args) {         new testtextpane();     }      public testtextpane() {         eventqueue.invokelater(new runnable() {             @override             public void run() {                 try {                     uimanager.setlookandfeel(uimanager.getsystemlookandfeelclassname());                 } catch (classnotfoundexception | instantiationexception | illegalaccessexception | unsupportedlookandfeelexception ex) {                 }                  final jtextpane tp = new jtextpane();                 jbutton withfocus = new jbutton("select focus");                 tp.addmouselistener(new mouseadapter() {                      @override                     public void mouseclicked(mouseevent e) {                         if (e.getclickcount() == 2 && swingutilities.isleftmousebutton(e)) {                             tp.selectall();                         }                     }                  });                  jframe frame = new jframe("testing");                 frame.setdefaultcloseoperation(jframe.exit_on_close);                 frame.setlayout(new borderlayout());                 frame.add(new jscrollpane(tp));                 frame.pack();                 frame.setlocationrelativeto(null);                 frame.setvisible(true);             }         });     } }