U++ framework: TreeCtrl » Editing TreeCtrl Node Value

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Editing TreeCtrl Node Value [message #34446]

Tue, 22 November 2011 19:24

bushman
Messages: 134
Registered: February 2009

Experienced Member

Is there a way of changing a TreeCtrl Node Value, say, the same way as you do in an ArrayCtrl Column, when you click a second time on a column previously assigned for editing through ArrayCtrl::Edit(Ctrl& ctrl)?

I couldn't find a corresponding method for TreeCtrl, such as TreeCtrl::Node::Edit(Ctrl& ctrl).

Any suggestions on how I should go about it, like a code sample ?

Thanks!

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Re: Editing TreeCtrl Node Value [message #34476 is a reply to message #34446]

Fri, 25 November 2011 01:50

bushman
Messages: 134
Registered: February 2009

Experienced Member

I improvised with the following code:

.h:

class App : public TopWindow {	
  public:
    typedef App CLASSNAME;
    App();

  private:
    struct TreeEdit : public EditString {
      Callback WhenLostFocus;
      TreeEdit() {}
      virtual void LostFocus() { WhenLostFocus(); }
    };
		
    bool                isedit;
    int                 nodeid;
    TreeCtrl::Node	editnode, node;
    TreeEdit		edit;
    TreeCtrl            tree;
		
    void EditBranch();
    void CloseEdit();
};

.cpp:

App::App() : isedit(false), nodeid(-1) {
   Add(tree.SizePos());
  /*
   ...
   Populate TreeCtrl here
   ...
  */
   tree.WhenLeftClick = THISBACK(EditBranch);
   editnode.SetCtrl(edit);
   edit.WhenEnter = THISBACK(CloseEdit);
   edit.WhenLostFocus = THISBACK(CloseEdit);
}

void App::EditBranch()
{
  if(isedit) {
    CloseEdit();
    return;
  }
  if(nodeid != tree.GetCursor()) {
    nodeid = tree.GetCursor();
    return;
  }
  isedit = true;
  node = tree.GetNode(nodeid);
  editnode.ctrl->SetData(node.value);
  editnode.image = node.image;
  groups.SetNode(nodeid, editnode);
  editnode.ctrl->Show();
}

void App::CloseEdit()
{
  node.value = editnode.ctrl->GetData();
  tree.SetNode(nodeid, node);
  tree.SelectOne(nodeid);
  editnode.ctrl->Hide();
  isedit = false;
}

It works in a way, but I guess there must be an easier way of acomplishing this.

thanks for any help.

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Re: Editing TreeCtrl Node Value [message #34488 is a reply to message #34476]

Fri, 25 November 2011 13:49

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

kropniczki wrote on Thu, 24 November 2011 19:50

I improvised with the following code:

.h:

class App : public TopWindow {	
  public:
    typedef App CLASSNAME;
    App();

  private:
    struct TreeEdit : public EditString {
      Callback WhenLostFocus;
      TreeEdit() {}
      virtual void LostFocus() { WhenLostFocus(); }
    };
		
    bool                isedit;
    int                 nodeid;
    TreeCtrl::Node	editnode, node;
    TreeEdit		edit;
    TreeCtrl            tree;
		
    void EditBranch();
    void CloseEdit();
};

.cpp:

App::App() : isedit(false), nodeid(-1) {
   Add(tree.SizePos());
  /*
   ...
   Populate TreeCtrl here
   ...
  */
   tree.WhenLeftClick = THISBACK(EditBranch);
   editnode.SetCtrl(edit);
   edit.WhenEnter = THISBACK(CloseEdit);
   edit.WhenLostFocus = THISBACK(CloseEdit);
}

void App::EditBranch()
{
  if(isedit) {
    CloseEdit();
    return;
  }
  if(nodeid != tree.GetCursor()) {
    nodeid = tree.GetCursor();
    return;
  }
  isedit = true;
  node = tree.GetNode(nodeid);
  editnode.ctrl->SetData(node.value);
  editnode.image = node.image;
  groups.SetNode(nodeid, editnode);
  editnode.ctrl->Show();
}

void App::CloseEdit()
{
  node.value = editnode.ctrl->GetData();
  tree.SetNode(nodeid, node);
  tree.SelectOne(nodeid);
  editnode.ctrl->Hide();
  isedit = false;
}

It works in a way, but I guess there must be an easier way of acomplishing this.

thanks for any help.

Unfortunately, this mode of edit is not directly supported (yet?).

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Re: Editing TreeCtrl Node Value [message #34490 is a reply to message #34488]

Fri, 25 November 2011 15:31

bushman
Messages: 134
Registered: February 2009

Experienced Member

Quote:

Unfortunately, this mode of edit is not directly supported (yet?).

All right, thank you, now I know officially it is not supported (yet), so I'll try to cope with what we got for now at least, for I read in your question mark maybe it might be included in a future version of TreeCtrl, right?

Thanks.

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