Class FilterResRable8Bit

    • Field Detail

      • filterResolutionX

        private int filterResolutionX
        Filter resolution along the x-axis
      • filterResolutionY

        private int filterResolutionY
        Filter resolution along the y-axis
      • resRed

        java.lang.ref.Reference resRed
        Cached Rendered image at filterRes.
      • resScale

        float resScale
    • Constructor Detail

      • FilterResRable8Bit

        public FilterResRable8Bit()
      • FilterResRable8Bit

        public FilterResRable8Bit​(Filter src,
                                  int filterResX,
                                  int filterResY)
    • Method Detail

      • setSource

        public void setSource​(Filter src)
        Sets the source to be cropped
        Specified by:
        setSource in interface FilterResRable
        Parameters:
        src - image to offset.
      • setFilterResolutionX

        public void setFilterResolutionX​(int filterResolutionX)
        Sets the resolution along the X axis, i.e., the maximum size for intermediate images along that axis. The value should be greater than zero to have an effect. Negative values are illegal.
        Specified by:
        setFilterResolutionX in interface FilterResRable
      • setFilterResolutionY

        public void setFilterResolutionY​(int filterResolutionY)
        Sets the resolution along the Y axis, i.e., the maximum size for intermediate images along that axis. If the Y-value is less than zero, the scale applied to the rendered images is computed to preserve the image's aspect ratio
        Specified by:
        setFilterResolutionY in interface FilterResRable
      • allPaintRable

        public boolean allPaintRable​(java.awt.image.renderable.RenderableImage ri)
        This returns true if ri and all of ri's sources implement the PaintRable interface. This is used to indicate that the chain has a good potential for bypassing the filterRes operation entirely. Ideally there would be a checkPaintRable method in PaintRable that could be used to get a definate answer about a filters ability to draw directly to a Graphics2D (this can sometimes 'fail' because of the way the Graphics2D is currently configured).
      • distributeAcross

        public boolean distributeAcross​(java.awt.image.renderable.RenderableImage src,
                                        java.awt.Graphics2D g2d)
        This function attempts to distribute the filterRes operation across src. Right now it knows about two operations, pad and composite. It's main target is the composite but often pad operations are sprinked in the chain so it needs to know about them. This list could be extended however if it gets much longer it should probably be rolled into a new 'helper interface' like PaintRable. NOTE: This is essentially a bad hack, but it is a hack that is recomended by the SVG specification so I do it.
      • paintRable

        public boolean paintRable​(java.awt.Graphics2D g2d)
        Should perform the equivilent action as createRendering followed by drawing the RenderedImage.
        Specified by:
        paintRable in interface PaintRable
        Parameters:
        g2d - The Graphics2D to draw to.
        Returns:
        true if the paint call succeeded, false if for some reason the paint failed (in which case a createRendering should be used).
      • getResScale

        private float getResScale()
      • getResRed

        private java.awt.image.RenderedImage getResRed​(java.awt.RenderingHints hints)
      • createRendering

        public java.awt.image.RenderedImage createRendering​(java.awt.image.renderable.RenderContext renderContext)
        Specified by:
        createRendering in interface java.awt.image.renderable.RenderableImage