/** @noRefGuide */
private int prepareImage() {
long t0 = time();
printf("ImageColorMap.prepareImage()\n");
Object imageSource = mp_imageSource.getValue();
if (imageSource == null) throw new RuntimeException("imageSource is null");
if (imageSource instanceof String) {
try {
m_imageData = new ImageColor(ImageIO.read(new File((String) imageSource)));
} catch (IOException e) {
printf("Can't find file: %s\n", imageSource);
// empty 1x1 image
m_imageData = new ImageColor(1, 1);
throw new RuntimeException(e);
}
} else if (imageSource instanceof Text2D) {
m_imageData = new ImageColor(((Text2D) imageSource).getImage());
} else if (imageSource instanceof FormattedText2D) {
m_imageData = new ImageColor(((FormattedText2D) imageSource).getImage());
} else if (imageSource instanceof BufferedImage) {
m_imageData = new ImageColor((BufferedImage) imageSource);
} else if (imageSource instanceof ImageWrapper) {
m_imageData = new ImageColor(((ImageWrapper) imageSource).getImage());
}
if (m_imageData == null) {
// Cast to String for now, not sure how to really handle this
String file = imageSource.toString();
printf("Converted to string: " + file);
try {
m_imageData = new ImageColor(ImageIO.read(new File(file)));
} catch (IOException e) {
// empty 1x1 image
m_imageData = new ImageColor(1, 1);
throw new RuntimeException(e);
}
}
if (m_imageData == null) {
m_imageData = new ImageColor(1, 1);
throw new IllegalArgumentException(
"Unhandled imageSource: " + imageSource + " class: " + imageSource.getClass());
}
return ResultCodes.RESULT_OK;
}
/** Removes all picked elements. */
public final void removeAllElements() {
LinkedHashSet<String> elements = (LinkedHashSet<String>) selection.getValue();
elements.clear();
markDirty();
}
/**
* Removes the given element id from the picked element list
*
* @param id a valid element id
*/
public final void removeElement(String id) {
LinkedHashSet<String> elements = (LinkedHashSet<String>) selection.getValue();
elements.remove(id);
markDirty();
}
private final void copySelection(HashSet<String> newSelection) {
HashSet<String> _selection = (HashSet<String>) selection.getValue();
_selection.clear();
_selection.addAll(newSelection);
markDirty();
}
/**
* Sets the selection parameter. Note that in order to take effect the parameter value should be
* of type {@link LinkedHashSet} (to keep adding order). The <code>HashSet</code> should contain
* the {@link Element} ids of the picked elements.
*
* @param selection
*/
public final void setSelection(ObjectParameter selection) {
// this.selection = selection;
Object value = selection.getValue();
if (value instanceof HashSet) copySelection((HashSet<String>) value);
getSelection().bind(subset);
}
/**
* Get the source image
*
* @return
*/
public Object getImage() {
return mp_imageSource.getValue();
}
