uitree

27 Responses to uitree

1. Luc VDP says:

   June 28, 2010 at 5:24 am

   Hello,
   I’m trying to make a tree to store links to interesting m-files.
   So I’d like to learn a bit more about using Uitree.
   This is the code I have so far.
   I have problems adding nodes in the tree : I don’t get my tree refreshed without restarting my gui.
   Any feedback is welcome

   function tree
   % Treeview showing interesting matlab files in ArcelorMittal Gent
   %
   % Example : tree
   %
   % Copyright 2010-06-27 - luc.vandeputte@arcelormittal.com
    
       %% Create window
       myFig = figure('NumberTitle','off',...
                      'Menubar','none',...
                      'Toolbar','none',...
                      'Name', 'ArcelorMittal Gent Matlab Tree', ...
                      'ResizeFcn',@ResizeFcn);
    
       %% Load treedata
       treedata=load('treedata');
       treedata=treedata.treedata;
    
       %% Create root tree node
       root = uitreenode('v0', 0, 'Interesting Matlab files', [], false);
    
       % Create tree on certain position (and add root node)
       posFig=get(myFig,'OuterPosition');
       posTree=[2, 2 , posFig(1,3)/3, posFig(1,4)-84];
       myTree = uitree('v0', 'Parent', myFig, ...
                        'Position', posTree, ...
                        'Root', root, ...
                        'ExpandFcn', @ExpandFcn );
       set(myTree,'NodeSelectedCallback', @SelectFcn);
    
       % Create Path label
       myLabelPath  = uicontrol('Style','edit', 'Fontsize', 10, 'String', 'Path:', 'HorizontalAlignment','left');
    
       % Create command label
       myLabelCommand  = uicontrol('Style','edit', 'Fontsize', 10, 'String', 'Command:', 'HorizontalAlignment','left');
    
       % Create buttons
       myMakeCurrentFolder  = uicontrol('Style','togglebutton', 'Fontsize', 10, 'String', 'Make current folder','Callback',@MakeCurrentFolder);
       myAddToPath  = uicontrol('Style','togglebutton', 'Fontsize', 10, 'String', 'Add to path','Callback',@AddToPath);
       myOpenFile  = uicontrol('Style','pushbutton', 'Fontsize', 10, 'String', 'Open file','Callback',@OpenFile);
       myRun  = uicontrol('Style','pushbutton', 'Fontsize', 10, 'String', 'Run','Callback',@RunCommand);
    
       % Create textbox
       myText  = uicontrol('Style','edit', 'Fontsize', 10, 'Max',2, 'HorizontalAlignment','left');
    
       % Create menu
       myMenu = uimenu(myFig,'Label','Tree');
       myMenuAddMenuAfter = uimenu(myMenu,'Label','Add menu after...','Callback',@MenuAddMenuAfter);
       myMenuAddMenuIn = uimenu(myMenu,'Label','Add menu in...','Callback',@MenuAddMenuIn);
       myMenuAddItemAfter = uimenu(myMenu,'Label','Add item after...','Separator','on','Callback',@MenuAddItemAfter);
       myMenuAddItemIn = uimenu(myMenu,'Label','Add item in...','Callback',@MenuAddItemIn);
       myMenuMove = uimenu(myMenu,'Label','Move...','Separator','on','Separator','on','Callback',@MenuMove);
       myMenuCancelMove = uimenu(myMenu,'Label','Cancel move','Visible','off','Callback',@MenuCancelMove);
       myMenuEdit = uimenu(myMenu,'Label','Edit...','Separator','on','Callback',@MenuEdit);
       myMenuDelete = uimenu(myMenu,'Label','Delete...','Separator','on','Callback',@MenuDelete);
    
   	% ???
       selection_hash = java.util.Hashtable;
       toolkit = java.awt.Toolkit.getDefaultToolkit;
       pin_image = toolkit.createImage([matlabroot,'/toolbox/matlab/icons/pin_icon.gif']);
       page_image = toolkit.createImage([matlabroot,'/toolbox/matlab/icons/pageicon.gif']);
    
       % Select root node
       myTree.setSelectedNode(root);
       myTree.expand(root);
    
       %% Action when treenode selected
       function SelectFcn(tree, ~)
           nodes = tree.SelectedNodes;
           if isempty(nodes)
               return
           end
           node = nodes(1);
           treenode=treedata(treedata.Id==node.getValue,:);
           if strcmp(treenode.Type,'F')
               set(myLabelPath,'String',treenode.Path);
               set(myLabelCommand,'String',treenode.Command);
               strTemp=eval(['help(''' treenode.Path{:} treenode.Command{:} ''')']);
               set(myText,'String',strTemp);
           else
               set(myLabelPath,'String','Menu');
               set(myLabelCommand,'String',treenode.Name);
               set(myText,'String','');
           end
       end
    
       %% Action when treenode is Expanded
       function nodes = ExpandFcn(~, value)
           % Take all children
           treenodes = treedata(treedata.ParentId==value,:);
    
           for i = 1:size(treenodes,1)
              if strcmp(treenodes.Type(i),'M') 
                   iconpath = [matlabroot,'/toolbox/matlab/icons/foldericon.gif'];
                   leaf = false;
              else
                   iconpath = [matlabroot,'/toolbox/matlab/icons/pageicon.gif'];
                   leaf = true;
              end
              nodes(i) = uitreenode('v0',treenodes.Id(i),treenodes.Name(i), iconpath, leaf);
           end
           if size(treenodes,1) == 0
               nodes = [];
           end
       end
    
       %% Executes when figure is resized.
       function ResizeFcn(hObject, eventdata, handles)
       % hObject    handle to figure1 (see GCBO)
       % eventdata  reserved - to be defined in a future version of MATLAB
       % handles    structure with handles and user data (see GUIDATA)
           posFig=get(myFig,'OuterPosition');
           posTree=[2, 2 , posFig(1,3)/3, posFig(1,4)-58];
           posLabelPath = [posFig(1,3)/3+4, posFig(1,4)-76, 2*posFig(1,3)/3-12, 20];
           posMakeCurrentFolder = [posFig(1,3)/3+4, posFig(1,4)-98, 140, 20];
           posAddToPath = [posFig(1,3)/3+144, posFig(1,4)-98, 90, 20];
           posOpenFile = [posFig(1,3)/3+234, posFig(1,4)-98, 70, 20];
           posRun = [posFig(1,3)/3+304, posFig(1,4)-98, 60, 20];
           posLabelCommand = [posFig(1,3)/3+4, posFig(1,4)-120, 2*posFig(1,3)/3-12, 20];
           posText=[posFig(1,3)/3+4, 2 , 2*posFig(1,3)/3-12, posFig(1,4)-128];
    
           set(myTree,'Position',posTree);
           set(myLabelPath,'Position',posLabelPath);
           set(myMakeCurrentFolder,'Position',posMakeCurrentFolder);
           set(myAddToPath,'Position',posAddToPath);
           set(myOpenFile,'Position',posOpenFile);
           set(myRun,'Position',posRun);
           set(myText,'Position',posText);
    
           set(myLabelCommand,'Position',posLabelCommand);
       end
    
       %% Functions connected to menu
       function MenuAddItemAfter(hObject, eventdata, handles)
           %Let user select the m-file
           [FileName,PathName,FilterIndex] = uigetfile('*.m','Select the MATLAB code file');
           % Show path, command (m-file name) and help information
           if size(FileName,2)>1 
               set(myLabelPath,'String',PathName);
               set(myLabelCommand,'String',FileName);
               strTemp=eval(['help(''' PathName FileName ''')']);
               set(myText,'String',strTemp);
           end
           % Add to treedata
           myNodes = myTree.SelectedNodes;
           myNode = myNodes(1);
           Id = myNode.getValue;
           index = find(treedata.Id == Id);
           treedata1 = treedata(1:index,:);
           treedata2 = dataset();
           treedata2.Id = max(treedata.Id) + 1;
           treedata2.ParentId = treedata.ParentId(index);
           treedata2.Name = {FileName};
           treedata2.Type = 'F';
           treedata2.Path = {PathName};
           treedata2.Command = {FileName};
           treedata3 = treedata(index+1:end,:);
           treedata=[treedata1;treedata2;treedata3];
           save treedata treedata;
           % Refresh tree
           myTree.expand
           myTree.repaint
           %Add new node
           %iconpath = [matlabroot,'/toolbox/matlab/icons/pageicon.gif'];
           %leaf = true;
           %newNode = uitreenode('v0',treedata2.Id,treedata2.Name, iconpath, leaf);
    
           %%% nodes(i) = uitreenode('v0',treenodes.Id(i),treenodes.Name(i), iconpath, leaf);
           %ExpandFcn(myTree,myNode.getParent);
           %myTree.reloadNode(myNode.getParent);
           %myTree.reloadNode(myNode);
           %myTree.reloadNode(myNode);
           %myTree.repaint
       end
    
       function MenuAddItemIn(hObject, eventdata, handles)
            filename = uigetfile;
       end
    
       function MenuAddMenuAfter(hObject, eventdata, handles)
       end
    
       function MenuAddMenuIn(hObject, eventdata, handles)
       end
    
       function MenuMove(hObject, eventdata, handles)
       end
    
       function MenuCancelMove(hObject, eventdata, handles)
       end
    
       function MenuEdit(hObject, eventdata, handles)
       end
    
       function MenuDelete(hObject, eventdata, handles)
       end
    
       function MenuExit(hObject, eventdata, handles)
           %exit
       end
    
   %% Functions connected to buttons
       function MakeCurrentFolder(hObject, eventdata, handles)
           %exit
       end
    
       function AddToPath(hObject, eventdata, handles)
           %exit
       end
    
       function OpenFile(hObject, eventdata, handles)
           %exit
       end
    
       function RunCommand(hObject, eventdata, handles)
           strCommand=get(myLabelCommand,'String');
           eval(strrep(strCommand{:},'.m',''));
       end
    
   end

   Reply
   • Scott Koch says:

     August 12, 2010 at 9:19 am

     Luc VDP –

     Yair will correct me if I’m wrong but I think some of your problem might be related to the fact the ML tree is set up for lazy loading. The leafs aren’t actually created until you expand. So if you want a leaf to show up on a refresh (rather than a user actually clicking on it) you’ll actually have to expand to its location programmatically (I know there’s an .expandrow method but there are probably other ways to).

     Scott
   • Clement Val says:

     August 13, 2010 at 2:29 pm

     For Luc : maybe this is too late or you figure it out, but to refresh the display after altering nodes, you should use the reloadNode() method on the parent node.
2. Scott Koch says:

   August 12, 2010 at 9:20 am

   Any idea on how to enable Drag and Drop on older versions of uitree? In Matlab 7.0.4 (Windows), uitree.m mentions a “DndEnabled” but it appears to have no affect. However, with ML 2007a DnD appears to be enabled by default.

   What would be really useful is to have DnD available across a figure and or between panels but I’d imagine that’s pretty complicated.

   Scott

   Reply
   • Malcolm Lidierth says:

     August 13, 2010 at 8:42 am

     Scott
     Below are some generic solutions that I have taken out of some code I developed to simulate drag-and-drop between a JTree and a MATLAB figure using the WindowButtonMotion callback.
     You may need to shake the mouse to initiate the callback on faster PCs- but that becomes second nature surprisingly quickly.

     function GUIComponentTreeSetupDrop(hObject, DragEventData, fh)
     % LocalSetupDrop = Mouse Dragged Callback
     % Set this up using
     %               obj.setDragEnabled(true);
     %               obj.MouseDraggedCallback={@LocalSetupDrop, fh};
     %                       where obj is a javax.swing component and
     %                       fh is the parent figure handle
     % This function relies on the observation that at least one MouseDragged
     % event will be fired when initiating a drag-and-drop
     setappdata(fh, 'GUIBuilderCurrentDragEventData', DragEventData);
     fcn=get(ancestor(fh, 'figure'), 'WindowButtonMotionFcn');
     set(ancestor(fh, 'figure'), 'WindowButtonMotionFcn', {@LocalMakeDrop, fcn});
     drawnow();
     return
     end
      
     function LocalMakeDrop(fhandle, EventDataToIgnore, fcn)
     % LocalMakeDrop = Simulate a drop action via WindowButtonMotionFcn
     % The figure application data area contains 'GUIBuilderCurrentDragEventData'
     % This contains a java.awt.event.MouseEvent object identifying the drag
     % source and can be used to find what needs to be dropped
     %           e.g. from a javax.swing.JTree
     %                   src=DragEventData.getSource();
     %                   todrop=src.getSelectionPath();
     %                               or
     %                   todrop=src.getSelectionRows();
     %
     % This function requires a WindowButtonMotion event to be fired.
     % On some computers this will nearly always happen when a drop is made. On others,
     % typically on newer machines, you will need to shake the mouse to initiate
     % the drop action.
      
     % Clear WindowButtonMotionFcn to prevent new calls.
     set(fhandle, 'WindowButtonMotionFcn', []);
     % Have we been too slow anyway?
     if isMultipleCall()
         % Only service the first call if we have multiple calls to
         % LocalMakeDrop in the queue
         set(fhandle, 'WindowButtonMotionFcn', @GUIWindowButtonMotionFcn);
         return
     end
     setptr(fhandle,'watch');
     drawnow();
     %-------------------------------------------------------------------------
     % USER CODE GOES HERE - it may help to add a drawnow() at the end the code
     %
     drawnow();
     %----------------------------------------------------------
     % Tidy up
     set(fhandle, 'WindowButtonMotionFcn', fcn);
     setptr(fhandle, 'arrow');
     return
     end
   • Malcolm Lidierth says:

     August 13, 2010 at 8:46 am

     Error. The “@GUIWindowButtonMotionFcn” in the code above should be “fcn” for a generic solution. GUIWindowButtonMotionFcn is just the standard callback in my particular application.
3. Stephen L says:

   August 31, 2010 at 8:34 am

   Is there anyway to have the parent of a tree be a panel rather then a figure?

   Thanks.

   Reply
   • Yair Altman says:

     August 31, 2010 at 2:08 pm

     @Stephan – as explained in the article, you can set a tree’s parent to a uipanel using the Parent property, but only after the tree has been created:

     hPanel = uipanel(...);
     [mtree, container] = uitree('v0', 'Root','C:\');
     set(container, 'Parent', hPanel, 'Position',...);
4. Drew says:

   October 6, 2010 at 3:09 pm

   I would like to say, I just discovered this blog, and am really blown away. I’m loving all the new stuff I’m learning.

   I’ve been trying to implement a GUI with three tabs. Each tab has a child panel and in one of the tabs I’ve tried to place a uitree. However, regardless of how I set the uitree’s parent value, it always seems to be the figure, and not the panel on the tab. As a result, the uitree is always displayed regardless of which tab is selected.

   I’ve included the code below. Is there something obvious I’m doing incorrectly?

   hTabGroup = uitabgroup('Parent', gcf); drawnow;
    
   tab0 = uitab('Parent', hTabGroup, 'title','Open Existing Project');
   panel0=uipanel('Parent', tab0, 'Title', 'Select Project to Load');
   a0=uicontrol('Parent', panel0, 'Style', 'listbox');
   set(a0, 'String', {'Project_1', 'Project_2', 'Project_3'});
   set(a0, 'Position', [5 5 200 150]);
    
   tab1 = uitab('Parent', hTabGroup, 'title','Create New Project');
   a1 = uipanel('Parent', tab1, 'Title', 'Create a New Project');
    
   tab2 = uitab('Parent', hTabGroup, 'title','Edit Existing Project');
   panel2=uipanel('Parent', tab2, 'Title', 'Select Project to Edit');
    
   % Tree
   [mtree, mtreeContainer] = uitree('Parent', panel2, 'Root','C:\');
   set(mtree, 'Position', [5 5 200 150]);

   Reply
   • Yair Altman says:

     October 6, 2010 at 3:55 pm

     @Drew – thanks for the compliment.

     uitree is basically just a Java component, and Matlab’s implementation of uitab has a known bug that it does not hide Java or ActiveX objects when switching tabs.

     The link I just gave provides some leads to solving this issue; you can try modifying the m-files in the folders %matlabroot%/toolbox/matlab/@uitools/@uitabgroup and /@uitools/@uitab, or you can use an actual JTabbedPanel (or one of several other Tab implementations mentioned in my uitab article) rather than Matlab’s built-in uitab.

     No easy fix, I’m afraid…

     - Yair
5. Tony says:

   October 27, 2010 at 11:52 pm

   Hello,

   I have a question regarding tree creation.

   Typically, I would use node.setSelectedNodes() to mark a parent and then create a new child node below using treeModel.insertNodeInto().

   The problem I am having is that Matlab seems not to wait for the setSelectedNodes-command to be finished before resuming its own code, and therefore, the order of the nodes gets mixed up (some times).

   My first and rather unsatisfying solution to the problem was to use pause() after each selection, making the tree build up very slowly.

   Is there any way to determine how long the java element exactly needs to finish the setSelectedNodes-command?

   Or is this error maybe due to the old Matlab version I am using, 2006a?

   Many thanks for any thoughts on this,
   Tony

   Reply
   • Yair Altman says:

     October 28, 2010 at 12:03 am

     @Tony – You do not need to select the parent node.

     As I said in the main article above, nodes can be added directly: node.add(anotherNode) adds anotherNode to the end of node‘s children list (possibly detaching it from its previous parent); node.insert(anotherNode,index) does the same but inserts anotherNode at a specific child index, rather than at the end of the children list.
6. Teresa Hall says:

   November 1, 2010 at 8:14 am

   I have created a tree inside a GUI, I do this in the figure create function. So the tree will be available to all the widgets, I put the tree into handles (handles.mtree=tree;). When I leave the create function a get(handles.mtree) returns a tree. But when I try to access it from other widgets, the command get(handles.mtree) returns the container that was created in the in my call to uitree. How do I get back to the actual tree?

   Reply
   • Yair Altman says:

     November 1, 2010 at 1:03 pm

     @Teresa – I’m not exactly sure what you mean, but if I guess correctly, you may be missing a call to guidata(hObject,handles); after you modify the handles struct with the uitree handle. If you don’t use guidata(), then the handles struct is not updated outside the function.

     -Yair
7. Teresa Hall says:

   November 16, 2010 at 3:54 pm

   Thanks for your answer. I found another way to get back to the tree. But now I have another question.

   % I am trying to store information into the node of the tree to be accessed
   % later in my processing.

   % I am:
   % 1) creating the tree
   % 2) createing a new node and putting data into it’s UserData area
   % 3) inserting it into the tree
   % 3) selecting that node and trying to get the data back.

   % 1) Create the tree
   objects = uitreenode(‘v0′, ‘Objects’, ‘Objects’, [], false);
   root = uitreenode(‘v0′, ‘Scenario’, ‘Scenario’, [], false);
   root.add(objects);
   scTree = uitree(‘v0′, ‘Root’,root);

   scTree.setSelectedNode(objects)
   selNode=scTree.getSelectedNodes;
   selNode=selNode(1);

   % 2) Create the new node and put data into the userdata area
   newNode=uitreenode(‘v0′,’selected’,struct.name,[],0);

   % create a structure to put into the newNode userdata area
   struct.name=’abc’;
   struct.val=1;
   newNode.UserData=struct;
   % NOTE: The new node is a “javahandle.com.mathworks.hg.peer.UITreeNode”
   % whereas newNode.java is a “com.mathworks.hg.peer.UITreeNode:abc”

   % 3) Insert it into the tree
   selNode.add(newNode)
   % or scTree.Model.insertNodeInto(newNode,selNode,selNode.getChildCount());
   scTree.setSelectedNode(newNode);

   % 3) selecting that node and trying to get the data back.
   selNode=scTree.getSelectedNodes;
   selNode=selNode(1);
   % NOTE: selNode is a “com.mathworks.hg.peer.UITreeNode:abc”, the same as
   % newNode.java.

   % My question is how do I get back to the userdata in the
   % “javahandle.com.mathworks.hg.peer.UITreeNode” object create earlier??

   Reply
   • Donn Shull says:

     November 17, 2010 at 9:47 am

     @Teresa – Use the handle method ie: selNode.handle. This will return the javahandle.com.mathworks.hg.peer.UITreeNode you need. So for your example selNode.handle.UserData will return your struct. handle and java are complementary methods for converting to and from the javahandle package.
   • Teresa Hall says:

     November 17, 2010 at 9:50 am

     Thank You!
     Thank You!
     Thank You!
8. Everest says:

   November 17, 2010 at 2:40 pm

   I’ve got a giant Excel file (~6000 entries) with values like this:

   /CE_2/CE2_Normal_Telemetry/CCE_Amp_Temperature_Trip_Low
   /CE_2/CE2_Normal_Telemetry/CCE_Amplifier_Temperature_Rate
   /CE_2/CE2_Normal_Telemetry/CCE_Converter_Temp_Trip_High
   /CE_2/CE2_Normal_Telemetry/CCE_Converter_Temp_Trip_Low
   /CE_2/CE2_Normal_Telemetry/CCSDS_API
   /CE_2/CE2_Normal_Telemetry/CCSDS_Sequence_Count
   /CE_2/CE2_Normal_Telemetry/CCSDS_Size
   /CE_2/CE2_Normal_Telemetry/CCSDS_Time
   /CE_2/CE2_Normal_Telemetry/CRC
   /CE_2/CE2_Normal_Telemetry/CSYNC

   Writing gargantuan code to decimate and rebuild this list manually in a UITREE.

   Anybody know of a shortcut?

   Reply
9. Henrik Toft says:

   January 16, 2011 at 12:20 pm

   Hi

   Great post and discussion about “the tree”. Is there any way to make “Computer” or “Desktop” root, so the entire PC can be browsed?

   Regards,
   Henrik

   Reply
   • Jason says:

     January 20, 2011 at 2:54 pm

     Henrik,

     You could do it yourself, or use uigetfile instead.

     Regards,
     Jason
10. Joe Burgel says:

    February 4, 2011 at 7:51 am

    All,

    I’m having a lot of problems with uitree – specifically with the expand function. If I give the root node more than one child and It returns those two node’s in the roots expand handler, uitree chokes… This is topping off two days of frustration in using uitree.

    All this frustration has got me thinking… What’s the advantage to uitree over simply implementing a JTree? What’s the advantage to all these ML wrapped java objects? I’ve put JTree’s in my ML apps before with little or no problems whatsoever. What am I getting for all the uitree frustration? Simplicity? Ease of use? I’m not seeing it.

    Reply
    • Yair Altman says:

      February 5, 2011 at 10:30 am

      @Joe – I tend to agree that if you know your way around Java’s JTree (or better still, JIDE’s JTree extensions) then you don’t gain much with uitree. However, keep in mind that many if not most Matlab users are not so comfortable using Java – a built-in Matlab wrapper would be something they would happily use, but not a Java JTree.

      It was the same story with Matlab’s uitable. After many years in undocumented limbo, uitable (which was initially not much more than a JTable wrapper) finally became documented in 2008. Perhaps the same will happen to uitree some day…
    • Joe Burgel says:

      February 7, 2011 at 3:01 pm

      Thanks for the reply Yair. I agree with you. I’m not a Java power coder but the online doc is very thorough. I can bump my way though. Java in ML is somewhat tedious although a lot less so now that I’m in ML 2010 and awtinvoke is no longer needed. If you write software for a living and have the time to learn, picking up Java is time well spent I think. I think I’ll go back to a JTree for now and maybe pick up uitree when it’s full grown. Thanks for all you Java support on this forum. I wouldn’t have gotten very far without it.
11. Venkat says:

    February 8, 2011 at 12:13 am

    Hi,
    I have problem using uitree and uicontrol together. I am using a tree and a edit box on a figure window. I am trying to read different data through edit boxes for each node.
    Edit box’s callback function is not getting called when I immediately click on the tree’s node after entering data in edit box. After entering data in edit box, If I click enter or click on any other uiobject or on figure, then the callback is invoked. Edit box Callback is not working if I click immediately on tree’s node. Can someone suggest me how to fix this problem?

    Reply
    • Yair Altman says:

      February 8, 2011 at 4:52 pm

      @Venkat – try to set your edit-box’s FocusLostCallback property, because the standard Matlab handles indeed do not update the edit-box’s value in such cases. You’ll need to gain access to the edit-box’s underlying Java handle for this, using the findjobj utility.
12. johnson jonaris says:

    May 19, 2011 at 12:27 pm

    I have a problem with NodeSelectedCallback, in a GUIDE project when the function is called for some reason it doesn’t consider the calling figure as its current figure
    I tested that using the below simple program that draws a a tree with one node, in the callback function I ask for the current figure using gcf, it creates a new one.
    Any clue why this happens ?

    function varargout = treetest(varargin)
    gui_Singleton = 1;
    gui_State = struct('gui_Name',       mfilename, ...
                       'gui_Singleton',  gui_Singleton, ...
                       'gui_OpeningFcn', @treetest_OpeningFcn, ...
                       'gui_OutputFcn',  @treetest_OutputFcn, ...
                       'gui_LayoutFcn',  [] , ...
                       'gui_Callback',   []);
    if nargin && ischar(varargin{1})
        gui_State.gui_Callback = str2func(varargin{1});
    end
     
    if nargout
        [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
    else
        gui_mainfcn(gui_State, varargin{:});
    end
     
    function treetest_OpeningFcn(hObject, eventdata, handles, varargin)
    import javax.swing.*
    import javax.swing.tree.*;
     
    handles.output = hObject;
    handles.rootNode = uitreenode('v0', 'root', 'ConnectomeVis', [], 0);
    handles.treeModel = DefaultTreeModel( handles.rootNode );           
    [handles.mTree, handles.TreeCon] = uitree('v0','Root',handles.rootNode);
    handles.mTree.setModel( handles.treeModel );
    set (handles.TreeCon,'Units', 'normalized','Position',[0 0 1 1])
    handles.mTree.setSelectedNode( handles.rootNode );
    nodes = handles.mTree.getSelectedNodes;
    parent = nodes(1);
    childNode = uitreenode('v0','Subject', 'Sub', [], 0);
    handles.treeModel.insertNodeInto(childNode,parent,parent.getChildCount());
    handles.mTree.setSelectedNode( childNode );
    handles.mTree.setSelectedNode( parent );
    set(handles.mTree, 'NodeSelectedCallback', {@NodeSelectedCallback,handles})
    guidata(hObject, handles);
     
    function NodeSelectedCallback (hObject, eventdata, handles)
     
    gcf
     
    function varargout = treetest_OutputFcn(hObject, eventdata, handles) 
     
    varargout{1} = handles.output;

    Reply
    • Yair Altman says:

      May 30, 2011 at 12:35 pm

      @Johnson – gcf only returns the current figure if its HandleVisibility property is ‘on’. Otherwise, it skips this figure and if no other figure is open that has HandleVisibility=’on’, then gcf will simply create a new (empty) figure.

      To solve this, you have several choices:

      1. Set your figure’s HandleVisibility property to ‘on’
      2. Run set(0,’ShowHiddenHandles’,'on’) – (the default is ‘off’)
      3. Use gcbf instead of gcf