Class FilterResRable8Bit
java.lang.Object
org.apache.batik.ext.awt.image.renderable.AbstractRable
org.apache.batik.ext.awt.image.renderable.FilterResRable8Bit
- All Implemented Interfaces:
RenderableImage
,Filter
,FilterResRable
,PaintRable
Interface for implementing filter resolution.
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Field Summary
Fields inherited from class org.apache.batik.ext.awt.image.renderable.AbstractRable
props, srcs, stamp
Fields inherited from interface java.awt.image.renderable.RenderableImage
HINTS_OBSERVED
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionboolean
This returns true ifri
and all ofri
's sources implement the PaintRable interface.createRendering
(RenderContext renderContext) boolean
distributeAcross
(RenderableImage src, Graphics2D g2d) This function attempts to distribute the filterRes operation across src.int
Returns the resolution along the X axis.int
Returns the resolution along the Y axis.Returns the source to be cropped.boolean
paintRable
(Graphics2D g2d) Should perform the equivilent action as createRendering followed by drawing the RenderedImage.void
setFilterResolutionX
(int filterResolutionX) Sets the resolution along the X axis, i.e., the maximum size for intermediate images along that axis.void
setFilterResolutionY
(int filterResolutionY) Sets the resolution along the Y axis, i.e., the maximum size for intermediate images along that axis.void
Sets the source to be croppedMethods inherited from class org.apache.batik.ext.awt.image.renderable.AbstractRable
createDefaultRendering, createScaledRendering, getBounds2D, getDependencyRegion, getDirtyRegion, getHeight, getMinX, getMinY, getProperty, getPropertyNames, getSources, getTimeStamp, getWidth, init, init, init, init, isDynamic, touch
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.apache.batik.ext.awt.image.renderable.Filter
getBounds2D, getDependencyRegion, getDirtyRegion, getTimeStamp
Methods inherited from interface java.awt.image.renderable.RenderableImage
createDefaultRendering, createScaledRendering, getHeight, getMinX, getMinY, getProperty, getPropertyNames, getSources, getWidth, isDynamic
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Constructor Details
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FilterResRable8Bit
public FilterResRable8Bit() -
FilterResRable8Bit
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Method Details
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getSource
Returns the source to be cropped.- Specified by:
getSource
in interfaceFilterResRable
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setSource
Sets the source to be cropped- Specified by:
setSource
in interfaceFilterResRable
- Parameters:
src
- image to offset.
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getFilterResolutionX
public int getFilterResolutionX()Returns the resolution along the X axis.- Specified by:
getFilterResolutionX
in interfaceFilterResRable
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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 interfaceFilterResRable
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getFilterResolutionY
public int getFilterResolutionY()Returns the resolution along the Y axis.- Specified by:
getFilterResolutionY
in interfaceFilterResRable
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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 interfaceFilterResRable
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allPaintRable
This returns true ifri
and all ofri
'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
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
Should perform the equivilent action as createRendering followed by drawing the RenderedImage.- Specified by:
paintRable
in interfacePaintRable
- 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).
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createRendering
- Specified by:
createRendering
in interfaceRenderableImage
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