Examples of ItsNatTreeUI

org.itsnat.comp.tree.ItsNatTreeUI
Is the base interface of the User Interface of a tree component.
Tree nodes are managed using the current tree structure and renderer.

Current implementation uses the tree data model when necessary and relays heavily on {@link org.itsnat.core.domutil.ElementTree} and related interfaces/objects.
If the tree is visually "rootless" there is no markup to the root but the root is ever counted for indexing as row 0 (including when there is no root in data model). Method calls like getParentElementFromRow(0) returns null. This guaranties same row values for trees visually "rootless" and with visible root.

Current implementation does not use the data model on methods not containing TreePath parameters.
@author Jose Maria Arranz Santamaria @see ItsNatTree#getItsNatTreeUI() @see ItsNatTree#getItsNatTreeCellRenderer() @see ItsNatTree#getItsNatTreeStructure()

Examples of org.itsnat.comp.tree.ItsNatTreeUI

    }


    public void expandCollapse(TreeExpansionEvent event,boolean expand)
    {
        TreePath path = event.getPath();
        ItsNatTreeUI compUI = comp.getItsNatTreeUI();
        ItsNatTreeCellUI nodeInfo = compUI.getItsNatTreeCellUIFromTreePath(path);
        if (nodeInfo == null) return; // parentPath is root and rootless mode
        updateTreeUIExpandCollapse(nodeInfo,path,expand);
    }

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Examples of org.itsnat.comp.tree.ItsNatTreeUI

    public boolean isVisible(TreePath path)
    {
        TreePath parentPath = path.getParentPath();
        if (parentPath == null) return true;
        
        ItsNatTreeUI compUI = comp.getItsNatTreeUI();
        ItsNatTreeCellUI parentNodeInfo = compUI.getItsNatTreeCellUIFromTreePath(parentPath);
        if (parentNodeInfo == null) return true; // path is root and rootless mode
        return parentNodeInfo.isExpanded();
    }

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Examples of org.itsnat.comp.tree.ItsNatTreeUI

        }
    }


    public void updateVisibilityOfNode(TreePath path,boolean visible)
    {
        ItsNatTreeUI compUI = comp.getItsNatTreeUI();
        ItsNatTreeCellUI nodeInfo = compUI.getItsNatTreeCellUIFromTreePath(path);
        if (nodeInfo == null) return; // parentPath is root and rootless mode
        updateVisibilityOfNode(nodeInfo,path,visible);
    }

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Examples of org.itsnat.comp.tree.ItsNatTreeUI

    }


    public void expandCollapse(TreeExpansionEvent event,boolean expand)
    {
        TreePath path = event.getPath();
        ItsNatTreeUI compUI = comp.getItsNatTreeUI();
        ItsNatTreeCellUI nodeInfo = compUI.getItsNatTreeCellUIFromTreePath(path);
        if (nodeInfo == null) return; // path is root and rootless mode
        updateTreeUIExpandCollapse(nodeInfo,path,expand);
    }

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Examples of org.itsnat.comp.tree.ItsNatTreeUI

    {
        // Hide/show child nodes
        TreeModel dataModel = comp.getTreeModel();
        Object parentNode = path.getLastPathComponent();
        int len = dataModel.getChildCount(parentNode);
        ItsNatTreeUI compUI = comp.getItsNatTreeUI();
        for(int i = 0; i < len; i++)
        {
            Object childNode = dataModel.getChild(parentNode,i);
            TreePath childPath = path.pathByAddingChild(childNode);
            ItsNatTreeCellUI childNodeInfo = compUI.getItsNatTreeCellUIFromTreePath(childPath);
            Element childElem = childNodeInfo.getParentElement();


            String display;
            if (childrenVisible)
                removeStyleProperty(childElem,"display"); // Show

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Examples of org.itsnat.comp.tree.ItsNatTreeUI

        }
    }


    private void openEditor(TreePath path)
    {
        ItsNatTreeUI compUI = getItsNatTree().getItsNatTreeUIImpl();
        ItsNatTreeCellUI cellInfo = (ItsNatTreeCellUI)compUI.getItsNatTreeCellUIFromTreePath(path);
        if (cellInfo == null) throw new ItsNatException("This tree node cannot be edited, may be is the root node in a rootless tree");
        openEditor(path,cellInfo.getRow(),cellInfo);
    }

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Examples of org.itsnat.comp.tree.ItsNatTreeUI

        openEditor(path,cellInfo.getRow(),cellInfo);
    }


    private void openEditor(int row)
    {
        ItsNatTreeUI compUI = getItsNatTree().getItsNatTreeUIImpl();
        ItsNatTreeCellUI cellInfo = (ItsNatTreeCellUI)compUI.getItsNatTreeCellUIFromRow(row);
        openEditor(cellInfo.getTreePath(),row,cellInfo);
    }

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Examples of org.itsnat.comp.tree.ItsNatTreeUI


    protected void openEditor(Event evt)
    {
        Node nodeClicked = (Node)evt.getTarget(); // Puede ser un nodo interior del elemento pulsado


        ItsNatTreeUI compUI = getItsNatTree().getItsNatTreeUIImpl();
        ItsNatTreeCellUI cellInfo = (ItsNatTreeCellUI)compUI.getItsNatTreeCellUIFromNode(nodeClicked);
        if (cellInfo != null) // Se ha pulsado un elemento verdaderamente
        {
            if (DOMUtilInternal.isChildOrSame(nodeClicked,cellInfo.getLabelElement(),cellInfo.getParentElement()))
            {
                // Se ha pulsado el nodo contenido (el handle y el icon no valen para editar)

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Examples of org.itsnat.comp.tree.ItsNatTreeUI

        String type = evt.getType();
        if (type.equals("click") || type.equals("dblclick") || type.equals("mouseup"))
        {
            Node nodeClicked = (Node) evt.getTarget(); // Puede ser un nodo interior del elemento pulsado


            ItsNatTreeUI compUI = getItsNatTreeUIImpl();
            ItsNatTreeCellUI nodeInfo = compUI.getItsNatTreeCellUIFromNode(nodeClicked);
            if (nodeInfo != null)
            {
                // Vemos qu� parte se ha pulsado
                Element parentElem = nodeInfo.getParentElement(); // para acelerar la b�squeda

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Examples of org.itsnat.comp.tree.ItsNatTreeUI

        return selectionUsesKeyboard;
    }


    public Element[] getContentElementList(int fromRow,int toRow)
    {
        ItsNatTreeUI compUI = getItsNatTreeUIImpl();
        int len = toRow - fromRow + 1;
        Element[] elemList = new Element[len * 3]; // handle, icon, label
        for(int row = fromRow; row <= toRow; row++)
        {
            ItsNatTreeCellUI cellUI = compUI.getItsNatTreeCellUIFromRow(row);
            if (cellUI == null) continue; // por ejemplo en el caso rootless ser� null para row = 0


            int pos = (row - fromRow) * 3;
            elemList[pos] = cellUI.getHandleElement();
            elemList[pos + 1] = cellUI.getIconElement();

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