Package org.fife.ui.rtextarea

Class VolatileImageBackgroundPainterStrategy

  • All Implemented Interfaces:
    BackgroundPainterStrategy
    public class VolatileImageBackgroundPainterStrategy
extends ImageBackgroundPainterStrategy
    A strategy for painting the background of an RTextAreaBase as an image. The image is always stretched to completely fill the RTextAreaBase.

    A java.awt.image.VolatileImage is used for rendering; theoretically, this should be the best image format for performance.

    You can set the scaling hint used when stretching/skewing the image to fit in the RTextAreaBase's background via the setScalingHint method, but keep in mind the more accurate the scaling hint, the less responsive your application will be when stretching the window (as that's the only time the image's size is recalculated).

    See Also:
    ImageBackgroundPainterStrategy, BufferedImageBackgroundPainterStrategy

    • Constructor Detail

      • VolatileImageBackgroundPainterStrategy

        public VolatileImageBackgroundPainterStrategy​(RTextAreaBase ta)
        Constructor.
        Parameters:
        ta - The text area whose background we'll be painting.

    • Method Detail

      • paintImage

        protected void paintImage​(Graphics g,
                          int x,
                          int y)
        Paints the image at the specified location. This method assumes scaling has already been done, and simply paints the background image "as-is."
        Specified by:
        paintImage in class ImageBackgroundPainterStrategy
        Parameters:
        g - The graphics context.
        x - The x-coordinate at which to paint.
        y - The y-coordinate at which to paint.

      • rescaleImage

        protected void rescaleImage​(int width,
                            int height,
                            int hint)
        Rescales the displayed image to be the specified size.
        Specified by:
        rescaleImage in class ImageBackgroundPainterStrategy
        Parameters:
        width - The new width of the image.
        height - The new height of the image.
        hint - The scaling hint to use.