Examples of org.itsnat.comp.tree.ItsNatTree

org.itsnat.comp.tree.ItsNatTree
Is the base interface of tree based components.
A tree component manages a javax.swing.tree.TreeModel data model, tree node values are rendered as markup using a special object, the renderer, and may be optionally edited "in place" using a user defined editor.

Any change to the data model is notified to the component and the markup is rendered again. The data model ever mandates over the markup, any initial markup content (initial root node) is removed.

Almost a root node must be present in the markup, this element is used as a pattern to create new tree nodes, and is removed because by default the data model is empty.

This component family uses a javax.swing.tree.TreeSelectionModel to keep track of selection states. When a tree node is selected (usually by clicking it) the selection state is updated accordingly using the selection model (this one fires any listener registered).

There is no default decoration of tree node selection, selection model listeners may be used to decorate the tree node markup when its selection state changes.

The component internally manages the expand/collapse behavior, when a mouse event is received (by default one click on handler, double click if icon or label) usually changes the expand/collapse state, this change is notified sending a javax.swing.event.TreeExpansionEvent to the registered listeners, these listeners must be used to manage how the expansion/collapsing is rendered visually (by default the component does not modify the view, does not force a default view behavior).

By default this component uses the default renderer and editor and a javax.swing.tree.DefaultTreeModel data model.

Row indexes start in 0.

This component family is the "componentized" version of {@link org.itsnat.core.domutil.ElementTree} andfollows a similar philosophy.

ItsNat only provides "free trees" because no <tree> tag is present in HTML.
@author Jose Maria Arranz Santamaria

        return treeNode.getParentElement();
    }


    public Element getContentElement(ElementTreeNodeImpl treeNode)
    {
        ItsNatTree tree = getItsNatTree();
        ItsNatTreeStructure structure = tree.getItsNatTreeStructure();
        return structure.getContentElement(tree,getRow(treeNode),treeNode.getParentElement());
    }

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        return structure.getContentElement(tree,getRow(treeNode),treeNode.getParentElement());
    }


    public Element getHandleElement(ElementTreeNodeImpl treeNode)
    {
        ItsNatTree tree = getItsNatTree();
        ItsNatTreeStructure structure = tree.getItsNatTreeStructure();
        return structure.getHandleElement(tree,getRow(treeNode),treeNode.getParentElement());
    }

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        return structure.getHandleElement(tree,getRow(treeNode),treeNode.getParentElement());
    }


    public Element getIconElement(ElementTreeNodeImpl treeNode)
    {
        ItsNatTree tree = getItsNatTree();
        ItsNatTreeStructure structure = tree.getItsNatTreeStructure();
        return structure.getIconElement(tree,getRow(treeNode),treeNode.getParentElement());
    }

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        return structure.getIconElement(tree,getRow(treeNode),treeNode.getParentElement());
    }


    public Element getLabelElement(ElementTreeNodeImpl treeNode)
    {
        ItsNatTree tree = getItsNatTree();
        ItsNatTreeStructure structure = tree.getItsNatTreeStructure();
        return structure.getLabelElement(tree,getRow(treeNode),treeNode.getParentElement());
    }

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        setNodeValueAt(row,value,hasFocus,treeNode,false);
    }


    public void setNodeValueAt(int row,Object value,boolean hasFocus,ElementTreeNodeImpl treeNode,boolean isNew)
    {
        ItsNatTree tree = getItsNatTree();
        TreeModel dataModel = tree.getTreeModel();
        boolean isSelected = tree.getTreeSelectionModel().isRowSelected(row);
        boolean isLeaf = dataModel.isLeaf(value);
        boolean expanded = getItsNatTreeCellUI(treeNode).isExpanded();
        Element treeNodeLabelElem = treeNode.getLabelElement();


        treeNode.setUsePatternMarkupToRender(isUsePatternMarkupToRender()); // Asegura que tiene el �ltimo valor pues cada tree node tiene su propio estado

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Related Classes of org.itsnat.comp.tree.ItsNatTree

org.itsnat.impl.comp.tree.ItsNatTreeUIImpl

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