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package javax.imageio; |
package javax.imageio; |
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import java.awt.Point; |
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import java.awt.Rectangle; |
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/** |
/** |
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* @author Michael Koch (konqueror@gmx.de) |
* @author Michael Koch (konqueror@gmx.de) |
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*/ |
*/ |
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public abstract class IIOParam |
public abstract class IIOParam |
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{ |
{ |
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protected IIOParamController controller; |
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protected IIOParamController defaultController; |
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protected Point destinationOffset = new Point(0, 0); |
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protected ImageTypeSpecifier destinationType; |
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protected int[] sourceBands; |
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protected Rectangle sourceRegion; |
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protected int sourceXSubsampling; |
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protected int sourceYSubsampling; |
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protected int subsamplingXOffset; |
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protected int subsamplingYOffset; |
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/** |
/** |
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* Initializes an <code>IIOParam</code> object. |
* Initializes an <code>IIOParam</code> object. |
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*/ |
*/ |
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protected IIOParam() |
protected IIOParam() |
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{ |
{ |
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// Do nothing here. |
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} |
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public boolean activateController() |
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{ |
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if (controller == null) |
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return false; |
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return controller.activate(this); |
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} |
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public IIOParamController getController() |
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{ |
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return controller; |
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} |
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public IIOParamController getDefaultController() |
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{ |
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return defaultController; |
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} |
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public Point getDestinationOffset() |
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{ |
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return destinationOffset; |
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} |
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public ImageTypeSpecifier getDestinationType() |
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{ |
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return destinationType; |
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} |
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public int[] getSourceBands() |
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{ |
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return sourceBands; |
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} |
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public Rectangle getSourceRegion() |
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{ |
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return sourceRegion; |
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} |
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public int getSourceXSubsampling() |
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{ |
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return sourceXSubsampling; |
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} |
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public int getSourceYSubsampling() |
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{ |
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return sourceYSubsampling; |
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} |
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public int getSubsamplingXOffset() |
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{ |
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return subsamplingXOffset; |
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} |
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public int getSubsamplingYOffset() |
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{ |
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return subsamplingYOffset; |
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} |
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public boolean hasController() |
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{ |
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return getController() != null; |
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} |
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public void setController(IIOParamController controller) |
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{ |
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this.controller = controller; |
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} |
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public void setDestinationOffset(Point destinationOffset) |
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{ |
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if (destinationOffset == null) |
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throw new IllegalArgumentException("destinationOffset is null"); |
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this.destinationOffset = destinationOffset; |
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} |
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public void setSourceRegion(Rectangle sourceRegion) |
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{ |
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if (sourceRegion != null |
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&& (sourceRegion.x < 0 |
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|| sourceRegion.y < 0 |
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|| sourceRegion.width <= 0 |
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|| sourceRegion.height <= 0)) |
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throw new IllegalArgumentException("illegal source region"); |
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// FIXME: Throw IllegalStateException. |
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this.sourceRegion = sourceRegion; |
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} |
} |
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} |
} |