Package org.jdesktop.swingx.renderer

Class TreeCellContext

  • All Implemented Interfaces:
    java.io.Serializable
    public class TreeCellContext
extends CellContext
    Tree specific CellContext.
    • PENDING: use focus border as returned from list or table instead of rolling its own? The missing ui-border probably is a consequence of the border hacking as implemented in core default renderer. SwingX has a composite default which should use the "normal" border.
    • PENDING: selection colors couple explicitly to SwingX - should we go JXTree as generic type?
    • PENDING: for a JXTree use the icons as returned by the xtree api?
    See Also:
    Serialized Form

    • Field Detail

      • leafIcon

        protected javax.swing.Icon leafIcon
        the icon to use for a leaf node.

      • closedIcon

        protected javax.swing.Icon closedIcon
        the default icon to use for a closed folder.

      • openIcon

        protected javax.swing.Icon openIcon
        the default icon to use for a open folder.

      • treeFocusBorder

        private javax.swing.border.Border treeFocusBorder
        the border around a focused node.

    • Constructor Detail

      • TreeCellContext

        public TreeCellContext()

    • Method Detail

      • installContext

        public void installContext​(javax.swing.JTree component,
                           java.lang.Object value,
                           int row,
                           int column,
                           boolean selected,
                           boolean focused,
                           boolean expanded,
                           boolean leaf)
        Sets state of the cell's context. Note that the component might be null to indicate a cell without a concrete context. All accessors must cope with.
        Parameters:
        component - the component the cell resides on, might be null
        value - the content value of the cell
        row - the cell's row index in view coordinates
        column - the cell's column index in view coordinates
        selected - the cell's selected state
        focused - the cell's focused state
        expanded - the cell's expanded state
        leaf - the cell's leaf state

      • checkDropOnState

        private boolean checkDropOnState()

      • getComponent

        public javax.swing.JTree getComponent()
        Description copied from class: CellContext
        Returns the component the cell resides on, may be null. Subclasses are expected to override and return the component type they are handling.
        Overrides:
        getComponent in class CellContext
        Returns:
        the component the cell resides on, may be null.

      • getTreePath

        public javax.swing.tree.TreePath getTreePath()
        Returns the treePath for the row or null if invalid.

      • isEditable

        public boolean isEditable()
        Returns the cell's editability. Subclasses should override to return a reasonable cell-related state.

        Here: false.

        PENDING: implement to return the tree cell editability!

        Overrides:
        isEditable in class CellContext
        Returns:
        the cell's editable property.

      • getSelectionBackground

        protected java.awt.Color getSelectionBackground()
        Returns the default selection background color of the renderered component. Typically, the color is LF specific. It's up to subclasses to look it up. Here: returns null.

        PENDING: return UI properties here?

        Overrides:
        getSelectionBackground in class CellContext
        Returns:
        the selection background color of the rendered component.

      • getSelectionForeground

        protected java.awt.Color getSelectionForeground()
        Returns the default selection foreground color of the renderered component. Typically, the color is LF specific. It's up to subclasses to look it up. Here: returns null.

        PENDING: return UI properties here?

        Overrides:
        getSelectionForeground in class CellContext
        Returns:
        the selection foreground color of the rendered component.

      • getUIPrefix

        protected java.lang.String getUIPrefix()
        Returns the component type specific prefix of keys for lookup in the UIManager. Subclasses must override, here: returns the empty String.
        Overrides:
        getUIPrefix in class CellContext
        Returns:
        the component type specific prefix.

      • getLeafIcon

        protected javax.swing.Icon getLeafIcon()
        Returns the default icon to use for leaf cell.
        Returns:
        the icon to use for leaf cell.

      • getOpenIcon

        protected javax.swing.Icon getOpenIcon()
        Returns the default icon to use for open cell.
        Returns:
        the icon to use for open cell.

      • getClosedIcon

        protected javax.swing.Icon getClosedIcon()
        Returns the default icon to use for closed cell.
        Returns:
        the icon to use for closed cell.

      • getIcon

        public javax.swing.Icon getIcon()
        Returns the icon. Subclasses should override to return a reasonable cell-related state.

        Here: null.

        Overridden to return a default depending for the leaf/open cell state.

        Overrides:
        getIcon in class CellContext
        Returns:
        the cell's icon.

      • getFocusBorder

        protected javax.swing.border.Border getFocusBorder()
        Description copied from class: CellContext
        Returns the default focus border of the renderered component. Typically, the border is LF specific.
        Overrides:
        getFocusBorder in class CellContext
        Returns:
        the focus border of the rendered component.