wxTreeCtrl doesn't SetItemImage

[NetWielder]

Perhaps I am not calling SetItemImage() with expected parameters? Is there caching? The following code prints out to the console the expected information and bolds the item's text when expanded and removes the bold style when collapsed however the image doesn't change from open to closed when SetItemImage() is called.

class ApplicationFrame extends wxFrame {

    public $menubar;
    public $statusbar;
    public $tree;

    function __construct( $parent=null ){
        parent::__construct ( $parent, wxID_ANY, "wxDoctrine", wxDefaultPosition, new wxSize( 500,300 ), wxDEFAULT_FRAME_STYLE|wxTAB_TRAVERSAL );

        $this->SetSizeHints( wxDefaultSize, wxDefaultSize );

        $this->statusbar = $this->CreateStatusBar( 1, wxST_SIZEGRIP, wxID_ANY );
        $this->menubar = new wxMenuBar( 0 );
        $this->SetMenuBar( $this->menubar );

        $sizer = new wxGridSizer( 1, 2, 0, 0 );

        $this->tree = new wxTreeCtrl( $this, wxID_ANY, wxDefaultPosition, new wxSize(500, 300),  wxTR_DEFAULT_STYLE );

        $this->imagelist = new wxImageList(16, 15);
        $closed_image = new wxBitmap('theme/glyphicons/16x16/glyphicons-441-folder-closed.png', wxBITMAP_TYPE_PNG); 
        $index = $this->imagelist->add($closed_image);
        print 'Folder Closed: ' . $index . PHP_EOL;
        $open_image = new wxBitmap('theme/glyphicons/16x16/glyphicons-145-folder-open.png', wxBITMAP_TYPE_PNG); 
        $index = $this->imagelist->add($open_image);
        print 'Folder Open: ' . $index . PHP_EOL;

        $this->tree->SetImageList($this->imagelist);
        print 'ImageList Count: ' . $this->imagelist->GetImageCount() . PHP_EOL;

        $rootId = $this->tree->AddRoot('Entity', $index, $index);
        $currentId = $this->tree->AppendItem($rootId, 'User'); 
        $currentId = $this->tree->AppendItem($rootId, 'Role'); 
        $currentId = $this->tree->AppendItem($rootId, 'Privilige'); 

        $this->tree->Connect(wxEVT_COMMAND_TREE_ITEM_EXPANDED, [$this, 'onItemExpanded']);
        $this->tree->Connect(wxEVT_COMMAND_TREE_ITEM_COLLAPSED, [$this, 'onItemCollapsed']);

        $sizer->Add( $this->tree, 0, wxALL, 5 );

        $this->SetSizer( $sizer );
        $this->Layout();

        $this->Centre( wxBOTH );

    }

    public function onItemExpanded($event)
    {
        # Following method call doesn't work
        $this->tree->SetItemImage($this->tree->GetRootItem(), 1, wxTreeItemIcon_Expanded);

        $this->tree->SetItemBold($this->tree->GetRootItem(), true);  # Bold style is applied
        print 'Item Expanded' . PHP_EOL;
    }

    public function onItemCollapsed($event)
    {
        # Following method call doesn't work
        $this->tree->SetItemImage($this->tree->GetRootItem(), 0, wxTreeItemIcon_Normal);

        $this->tree->SetItemBold($this->tree->GetRootItem(), false);   # Bold style is removed
        print 'Item Collapsed' . PHP_EOL;
    }


    function __destruct( ){
    }

}

Below is the output from the console:

Folder Closed: 0
Folder Open: 1
ImageList Count: 2
Item Expanded
Item Collapsed
Item Expanded
Item Collapsed
Item Expanded
Item Collapsed

[NetWielder]

If I do not pass the index of the images to AddRoot() I am able to use SetItemImage()

$rootId = $this->tree->AddRoot('Entity');

Are the index image parameters to AddRoot() considered "default" values and should SetItemImage() take precedence and override the previously established image index values?

It's easy enough to workaround however perhaps this is not the intended behavior?

[NetWielder]

Am I using the AddRoot() method as intended? Thank you for your feedback. :-)

[jgmdev]

More appropriate documentation about wxTreeCtrl::AddRoot from wxWidgets docs:

The image and selImage parameters are an index within the normal image list specifying the image to use for unselected and selected items, respectively. If image -1 and selImage is -1, the same image is used for both selected and unselected items.

http://docs.wxwidgets.org/trunk/classwx_tree_ctrl.html#a1fa4eecee7fca8ea6d69903be8e6c285

I have to improve the reference generator to also extract the large description. I think I already did that on the new code generator, I just need to implement code generation of classes to start using it for wxPHP.

Sorry for the delay on this response.