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package imaging.framework;
import java.awt.*;
import java.awt.image.*;
import java.util.Vector;
public class ImageProcessor
{
private Vector pipeline_ = new Vector();
public ImageProcessor()
{
}
public void addFilter(String filter_name, ImageFilter filter)
{
pipeline_.addElement(new FilterNode(filter_name, filter));
}
public boolean removeFilter(String name)
{
FilterNode filter_node;
for (int i = 0; i < pipeline_.size(); i++)
{
filter_node = (FilterNode)pipeline_.elementAt(i);
if (name.equals(filter_node.getName()))
{
pipeline_.removeElementAt(i);
pipeline_.trimToSize();
return true;
}
}
return false;
}
public Image processImage(Image image, ImageFilter filter, Component component)
{
Image old_image = image, new_image = old_image;
MediaTracker tracker = new MediaTracker(component);
try
{
new_image = component.createImage(new FilteredImageSource(old_image.getSource(), filter));
tracker.addImage(new_image, 0);
tracker.waitForID(0);
}
catch(InterruptedException excp)
{
System.out.println("ImageProcessor::processImage Image failed to load.");
System.out.println(excp);
return null;
}
return new_image;
}
public Image processImage(Image image, Component component)
{
Image old_image = image, new_image = null;
ImageFilter image_filter;
FilterNode filter_node;
MediaTracker tracker = new MediaTracker(component);
try
{
for (int i = 0; i < pipeline_.size(); i++)
{
filter_node = (FilterNode) pipeline_.elementAt(i);
image_filter = filter_node.getFilter();
new_image = component.createImage(new FilteredImageSource(old_image.getSource(), image_filter));
old_image = new_image;
tracker.addImage(new_image, 0);
tracker.waitForID(0);
}
}
catch(InterruptedException excp)
{
System.out.println("ImageProcessor::processImage Image failed to load.");
System.out.println(excp);
return null;
}
return new_image;
}
}
class FilterNode
{
private String name_;
private ImageFilter filter_;
FilterNode(String name, ImageFilter filter)
{
name_ = name;
filter_ = filter;
}
String getName()
{
return name_;
}
ImageFilter getFilter()
{
return filter_;
}
}
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