i have jlist filled entries native copy method can't handle. have method copies , formats selected data in way want , want method called when ctrl + c used unfortunately jlist listing accelerator keys when set them copy function in jmenu doesn't work unless give jmeny focus. there anyway can make ctrl + c use copy method instead of native 1 other having click on jmenu every time want copy something?
start taking @ how use key bindings , how use actions
start creating action describes , how does. in case, may need supply jlist want copy (i'd have kind of interface provided "copy" method of kind, that's me)
public class copyaction extends abstractaction { private jlist list; public copyaction(jlist list) { putvalue(name, "copy"); putvalue(accelerator_key, keystroke.getkeystroke(keyevent.vk_c, keyevent.ctrl_down_mask)); putvalue(mnemonic_key, keyevent.vk_c); putvalue(selected_key, "copy stuff"); } @override public void actionperformed(actionevent e) { system.out.println("all copies belong us"); } public jlist getlist() { return list; } } now, add key binding jlist, along action...
public class testpane extends jpanel { private jlist listofstuff; public testpane() { setlayout(new borderlayout()); listofstuff = new jlist(); add(new jscrollpane(listofstuff)); copyaction copyaction = new copyaction(listofstuff); listofstuff.getactionmap().put("copy", copyaction); } public jlist getlistofstuff() { return listofstuff; } } now, can use action buttons well...
testpane tp = new testpane(); copyaction copyaction = new copyaction(tp.getlistofstuff()); jmenubar mb = new jmenubar(); jmenu menu = new jmenu("edit"); mb.add(menu); menu.add(copyaction); jframe frame = new jframe("testing"); frame.setjmenubar(mb); and runnable example....
import java.awt.borderlayout; import java.awt.eventqueue; import java.awt.event.actionevent; import java.awt.event.keyevent; import javax.swing.abstractaction; import javax.swing.jframe; import javax.swing.jlist; import javax.swing.jmenu; import javax.swing.jmenubar; import javax.swing.jmenuitem; import javax.swing.jpanel; import javax.swing.jscrollpane; import javax.swing.keystroke; import javax.swing.uimanager; import javax.swing.unsupportedlookandfeelexception; public class test { public static void main(string[] args) { new test(); } public class copyaction extends abstractaction { private jlist list; public copyaction(jlist list) { putvalue(name, "copy"); putvalue(accelerator_key, keystroke.getkeystroke(keyevent.vk_c, keyevent.ctrl_down_mask)); putvalue(mnemonic_key, keyevent.vk_c); putvalue(selected_key, "copy stuff"); } @override public void actionperformed(actionevent e) { system.out.println("all copies belong us"); } public jlist getlist() { return list; } } public test() { eventqueue.invokelater(new runnable() { @override public void run() { try { uimanager.setlookandfeel(uimanager.getsystemlookandfeelclassname()); } catch (classnotfoundexception | instantiationexception | illegalaccessexception | unsupportedlookandfeelexception ex) { ex.printstacktrace(); } testpane tp = new testpane(); copyaction copyaction = new copyaction(tp.getlistofstuff()); jmenubar mb = new jmenubar(); jmenu menu = new jmenu("edit"); mb.add(menu); menu.add(copyaction); jframe frame = new jframe("testing"); frame.setjmenubar(mb); frame.setdefaultcloseoperation(jframe.exit_on_close); frame.add(new testpane()); frame.pack(); frame.setlocationrelativeto(null); frame.setvisible(true); } }); } public class testpane extends jpanel { private jlist listofstuff; public testpane() { setlayout(new borderlayout()); listofstuff = new jlist(); add(new jscrollpane(listofstuff)); copyaction copyaction = new copyaction(listofstuff); listofstuff.getactionmap().put("copy", copyaction); } public jlist getlistofstuff() { return listofstuff; } } } 
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