Class ToggleRenderer

  • All Implemented Interfaces:
    IRenderer

    public class ToggleRenderer
    extends AbstractRenderer
    The renderer for tree item plus/minus expand/collapse toggle.
    Since:
    2.0.0
    • Field Detail

      • IS_MAC

        private static final boolean IS_MAC
    • Constructor Detail

      • ToggleRenderer

        public ToggleRenderer()
        Default constructor.
    • Method Detail

      • paint

        public void paint​(org.eclipse.swt.graphics.GC gc,
                          java.lang.Object value)
        Description copied from interface: IRenderer
        Paints the visual representation of the given value on the given GC. The actual class of the value object is determined by the use of the implementing class.

        Implementors need to respect the bounds values that may have been specified. The bounds values may affect the x and y values for all drawing operations as well as the width and heights. Implementors may use a Transform to translate the coordinates of all the drawing operations, otherwise they will need to offset each draw.

        Parameters:
        gc - GC to paint with
        value - the value being painted
        See Also:
        IRenderer.paint(org.eclipse.swt.graphics.GC, java.lang.Object)
      • paintMacTwistie

        private void paintMacTwistie​(org.eclipse.swt.graphics.GC gc)
      • paintPlusMinus

        private void paintPlusMinus​(org.eclipse.swt.graphics.GC gc)
      • computeSize

        public org.eclipse.swt.graphics.Point computeSize​(org.eclipse.swt.graphics.GC gc,
                                                          int wHint,
                                                          int hHint,
                                                          java.lang.Object value)
        Description copied from interface: IRenderer
        Returns the size of the given value's visual representation.
        Parameters:
        gc - convenience GC for string and text extents
        wHint - given width (or SWT.DEFAULT)
        hHint - given height (or SWT.DEFAULT)
        value - value to be sized
        Returns:
        the size
        See Also:
        IRenderer.computeSize(org.eclipse.swt.graphics.GC, int, int, java.lang.Object)