java - How do I make JTree stop cell editing, when either Focus Lost or Left Click occurs outside JTree Location? -
what want happen while editing jtree, want commit edit if click outside of edit box. tree.setinvokesstopcellediting(true); helped, if click somewhere in jtree, edit gets committed. if click outside of jtree, jtextpane edit won't commit. question: question: how make jtree stop cell editing, when focus lost? or when left click outside jtree location? there prefered way this?
note: in code below tried solve using focus listener annoymous inner class, , tried pseudocode whentreelosesfocus() { if( tree.isediting() ) tree.stopediting(); }
that doesn't work because on edit focus changes celleditor component within tree, , see edit box flash on , flash off quickly.
the solution doesn't have focus based, can left click outside jtree area.
ssce follows (btw if run code convienence both spacebar , f2 rename nodes.)
import java.awt.event.focusevent; import java.awt.event.focuslistener; import javax.swing.jframe; import javax.swing.jscrollpane; import javax.swing.jsplitpane; import javax.swing.jtextpane; import javax.swing.jtree; import javax.swing.keystroke; public class stackexchangequestion3 { public static void main(string[] args){ jframe window = new jframe(); window.setdefaultcloseoperation(jframe.exit_on_close); window.settitle("stack exchange question"); window.setsize(400,500);//variable parameters best window.setvisible(true); jsplitpane split = new jsplitpane(); window.getrootpane().setcontentpane(split); jscrollpane left = new jscrollpane(); jscrollpane right = new jscrollpane(); jtree tree = new jtree();//loads sample tree data tree.seteditable(true);//select node press f2 edit (built in keybinding) tree.getinputmap().put(keystroke.getkeystroke("space"), "startediting");//can edit space tree.setinvokesstopcellediting(true);//this helps stop editing within focus of tree jtextpane text = new jtextpane(); split.setleftcomponent(left); split.setrightcomponent(right); left.setviewportview(tree); right.setviewportview(text); split.setdividerlocation(200); tree.addfocuslistener(new focuslistener(){ public void focusgained(focusevent e) { } public void focuslost(focusevent e) { jtree tree = (jtree)e.getsource(); if( tree.isediting() ) tree.stopediting(); } });//end addfocuslistener }//end main } commentary reasoning on if 1 way preferred on other welcome. tips on how detect if mouse click outside of jtree/tips in right direction.
import java.awt.component; import java.awt.event.focusevent; import java.awt.event.focuslistener; import javax.swing.jframe; import javax.swing.jscrollpane; import javax.swing.jsplitpane; import javax.swing.jtextpane; import javax.swing.jtree; import javax.swing.keystroke; import javax.swing.tree.defaulttreecelleditor; import javax.swing.tree.defaulttreecellrenderer; import javax.swing.tree.treecellrenderer; public class stackexchangequestion3ansa { public static void main(string[] args){ new stackexchangequestion3ansa(); } stackexchangequestion3ansa(){ jframe window; window = new jframe(); window.setdefaultcloseoperation(jframe.exit_on_close); window.settitle("stack exchange answer"); window.setsize(400,500);//variable parameters best window.setvisible(true); jsplitpane split = new jsplitpane(); window.setcontentpane(split); jscrollpane left = new jscrollpane(); jscrollpane right = new jscrollpane(); jtree tree; tree = new jtree();//loads sample tree data tree.seteditable(true);//select node press f2 edit (built in keybinding) tree.getinputmap().put(keystroke.getkeystroke("space"), "startediting");//can edit space tree.setinvokesstopcellediting(true);//this helps stop editing within focus of tree //even fix above line still needed jtextpane text = new jtextpane(); split.setleftcomponent(left); split.setrightcomponent(right); left.setviewportview(tree); right.setviewportview(text); split.setdividerlocation(200); tree.setcelleditor( new mytreecelleditor(tree, tree.getcellrenderer()) ); }//end constructor private class mytreecelleditor extends defaulttreecelleditor { public mytreecelleditor(jtree tree, treecellrenderer renderer) { super(tree, (defaulttreecellrenderer)renderer); //note: http://stackoverflow.com/questions/5031101/why-i-lose-the-focus-for-a-short-time-from-jtree-after-editing-a-node?rq=1 //andré mentions "the tree adds defaultcelleditor jtree hierarchy when editing starts. textfield gains focus." //it's not simple this.addfocuslistener() //2 variables: editingcomponent , editingcontainer, inherited defaulttreecelleditor //the constructor doesn't initialize editingcomponent //it's null atm, can't add focuslistener it, (yet @ later time gain focus) //focusowner (on edit): javax.swing.tree.defaulttreecelleditor$defaulttextfield //editingcomponent default defaulttextfield } @override public component gettreecelleditorcomponent(final jtree tree, object value, boolean isselected, boolean expanded, boolean leaf, int row) { component container = super.gettreecelleditorcomponent(tree, value, isselected, expanded, leaf, row); //note: system.out.println("components type: "+containeractually.getclass().getname()); //was used show container, javax.swing.tree.defaulttreecelleditor$editorcontainer //gettreecelleditorcomponent(parameters) called editing begins //also @ time editingcomponent != null (aka initialized) //so it's place add in focus listener editingcomponent.addfocuslistener( new focuslistener(){ @override public void focusgained(focusevent e) { } @override public void focuslost(focusevent e) { tree.stopediting();} } ); //editorcontainer responsible displaying editingcomponent //so added focuslistener, after editingcomponent initialized, , before it's used //(i think return statement means it's used) return container; } }//end mytreecelleditor }//end class
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