Java™ Platform
Standard Ed. 8
javax.swing.plaf.synth

Class SynthTreeUI

    • Constructor Detail

      • SynthTreeUI

        public SynthTreeUI()
    • Method Detail

      • createUI

        public static ComponentUI createUI(JComponent x)
        Creates a new UI object for the given component.
        Parameters:
        x - component to create UI object for
        Returns:
        the UI object
      • getContext

        public SynthContext getContext(JComponent c)
        Returns the Context for the specified component.
        Specified by:
        getContext in interface SynthUI
        Parameters:
        c - Component requesting SynthContext.
        Returns:
        SynthContext describing component.
      • update

        public void update(Graphics g,
                           JComponent c)
        Notifies this UI delegate to repaint the specified component. This method paints the component background, then calls the paint(SynthContext,Graphics) method.

        In general, this method does not need to be overridden by subclasses. All Look and Feel rendering code should reside in the paint method.

        Overrides:
        update in class ComponentUI
        Parameters:
        g - the Graphics object used for painting
        c - the component being painted
        See Also:
        paint(SynthContext,Graphics)
      • paintBorder

        public void paintBorder(SynthContext context,
                                Graphics g,
                                int x,
                                int y,
                                int w,
                                int h)
        Paints the border.
        Specified by:
        paintBorder in interface SynthUI
        Parameters:
        context - a component context
        g - Graphics to paint on
        x - the X coordinate
        y - the Y coordinate
        w - width of the border
        h - height of the border
      • paint

        protected void paint(SynthContext context,
                             Graphics g)
        Paints the specified component.
        Parameters:
        context - context for the component being painted
        g - the Graphics object used for painting
        See Also:
        update(Graphics,JComponent)
      • paintHorizontalPartOfLeg

        protected void paintHorizontalPartOfLeg(Graphics g,
                                                Rectangle clipBounds,
                                                Insets insets,
                                                Rectangle bounds,
                                                TreePath path,
                                                int row,
                                                boolean isExpanded,
                                                boolean hasBeenExpanded,
                                                boolean isLeaf)
        Paints the horizontal part of the leg. The receiver should NOT modify clipBounds, or insets.

        NOTE: parentRow can be -1 if the root is not visible.

        Overrides:
        paintHorizontalPartOfLeg in class BasicTreeUI
      • paintExpandControl

        protected void paintExpandControl(Graphics g,
                                          Rectangle clipBounds,
                                          Insets insets,
                                          Rectangle bounds,
                                          TreePath path,
                                          int row,
                                          boolean isExpanded,
                                          boolean hasBeenExpanded,
                                          boolean isLeaf)
        Paints the expand (toggle) part of a row. The receiver should NOT modify clipBounds, or insets.
        Overrides:
        paintExpandControl in class BasicTreeUI
      • propertyChange

        public void propertyChange(PropertyChangeEvent event)
        This method gets called when a bound property is changed.
        Specified by:
        propertyChange in interface PropertyChangeListener
        Parameters:
        event - A PropertyChangeEvent object describing the event source and the property that has changed.
      • paintDropLine

        protected void paintDropLine(Graphics g)
        Paints the drop line.
        Overrides:
        paintDropLine in class BasicTreeUI
        Parameters:
        g - Graphics object to draw on
      • getRowX

        protected int getRowX(int row,
                              int depth)
        Returns the location, along the x-axis, to render a particular row at. The return value does not include any Insets specified on the JTree. This does not check for the validity of the row or depth, it is assumed to be correct and will not throw an Exception if the row or depth doesn't match that of the tree.
        Overrides:
        getRowX in class BasicTreeUI
        Parameters:
        row - Row to return x location for
        depth - Depth of the row
        Returns:
        amount to indent the given row.
Java™ Platform
Standard Ed. 8

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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2022, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

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