/** Removes references to images. */
void discard() {
combinedImage = null;
displayedImage = null;
displayedProjectedImage = null;
projectedImage = null;
renderedImage = null;
clearList(gridImages);
clearList(originalGridImages);
clearTextureMap(gridImagesAsTextures);
projectedImageAsTexture = null;
renderedImageAsTexture = null;
System.gc(); // force garbage collection
}
/** Creates the images composing the grid when the color model is <code>GreyScale</code>. */
private void createGridImagesForGreyScale() {
int maxC = parent.getMaxC();
List l = parent.getActiveChannelsInGrid();
int n = l.size();
clearList(gridImages);
if (combinedImage != null) combinedImage.flush();
switch (n) {
case 0:
for (int i = 0; i < maxC; i++) gridImages.add(null);
combinedImage = null;
break;
case 1:
case 2:
case 3:
if (isImageMappedRGB(l)) {
BufferedImage image = parent.getCombinedGridImage();
if (image == null) {
for (int i = 0; i < maxC; i++) gridImages.add(null);
break;
}
combinedImage = Factory.magnifyImage(gridRatio, image);
int w = combinedImage.getWidth();
int h = combinedImage.getHeight();
DataBuffer buf = combinedImage.getRaster().getDataBuffer();
List<ChannelData> list = parent.getSortedChannelData();
Iterator<ChannelData> i = list.iterator();
int index;
while (i.hasNext()) {
index = i.next().getIndex();
if (l.contains(index)) {
if (parent.isChannelRed(index)) {
gridImages.add(
Factory.createBandImage(
buf, w, h, Factory.RED_MASK, Factory.RED_MASK, Factory.RED_MASK));
} else if (parent.isChannelGreen(index)) {
gridImages.add(
Factory.createBandImage(
buf, w, h, Factory.GREEN_MASK, Factory.GREEN_MASK, Factory.GREEN_MASK));
} else if (parent.isChannelBlue(index)) {
gridImages.add(
Factory.createBandImage(
buf, w, h, Factory.BLUE_MASK, Factory.BLUE_MASK, Factory.BLUE_MASK));
}
} else {
gridImages.add(null);
}
}
} else {
retrieveGridImagesForGreyScale(l);
}
break;
default:
retrieveGridImagesForGreyScale(l);
}
}
/** Sets the images composing the grid. */
void setGridImages() {
if (gridImages.size() != 0) return;
clearList(originalGridImages);
if (gridImagesAsTextures.size() != 0) return;
try {
if (ImViewerAgent.hasOpenGLSupport()) createGridImagesAsTextures();
else createGridImages();
} catch (Exception e) {
handleGridImageCreationException(e);
}
}
/** Creates the images composing the grid. */
private void createGridImages() {
// if (combinedImage == null) return;
if (originalGridImages == null) originalGridImages = new ArrayList<BufferedImage>();
clearList(gridImages);
if (ImViewer.GREY_SCALE_MODEL.equals(parent.getColorModel())) {
createGridImagesForGreyScale();
return;
}
List l = parent.getActiveChannels();
int maxC = parent.getMaxC();
switch (l.size()) {
case 0:
for (int i = 0; i < maxC; i++) gridImages.add(null);
break;
case 1:
case 2:
case 3:
if (isImageMappedRGB(l) && !parent.isCompressed()) {
combinedImage = null;
combinedImage = Factory.magnifyImage(gridRatio, renderedImage);
int w = combinedImage.getWidth();
int h = combinedImage.getHeight();
DataBuffer buf = combinedImage.getRaster().getDataBuffer();
List<ChannelData> list = parent.getSortedChannelData();
Iterator<ChannelData> i = list.iterator();
int index;
while (i.hasNext()) {
index = i.next().getIndex();
if (parent.isChannelActive(index)) {
if (parent.isChannelRed(index)) {
gridImages.add(
Factory.createBandImage(
buf, w, h, Factory.RED_MASK, Factory.BLANK_MASK, Factory.BLANK_MASK));
} else if (parent.isChannelGreen(index)) {
gridImages.add(
Factory.createBandImage(
buf, w, h, Factory.BLANK_MASK, Factory.GREEN_MASK, Factory.BLANK_MASK));
} else if (parent.isChannelBlue(index)) {
gridImages.add(
Factory.createBandImage(
buf, w, h, Factory.BLANK_MASK, Factory.BLANK_MASK, Factory.BLUE_MASK));
}
} else {
gridImages.add(null);
}
}
} else {
retrieveGridImages();
}
break;
default:
retrieveGridImages();
}
}
/**
* Sets the ratio of the grid image.
*
* @param gridRatio The value to set.
*/
void setGridRatio(double gridRatio) {
// if (ratio == 1) return; //We don't want to be too small.
double max = ZoomGridAction.MAX_ZOOM_FACTOR;
if (gridRatio > max) return;
this.gridRatio = gridRatio;
if (ImViewerAgent.hasOpenGLSupport()) return;
if (CollectionUtils.isEmpty(originalGridImages)) {
try {
createGridImages();
} catch (Exception e) {
handleGridImageCreationException(e);
}
return;
}
int n = originalGridImages.size();
clearList(gridImages);
int maxC = parent.getMaxC();
switch (n) {
case 0:
for (int i = 0; i < maxC; i++) gridImages.add(null);
break;
case 1:
case 2:
case 3:
// TODO: Review that code.
if (isImageMappedRGB(parent.getActiveChannels())) {
try {
createGridImages();
} catch (Exception e) {
handleGridImageCreationException(e);
}
} else {
combinedImage = null;
combinedImage = Factory.magnifyImage(gridRatio, renderedImage);
Iterator<BufferedImage> i = originalGridImages.iterator();
while (i.hasNext()) {
gridImages.add(Factory.magnifyImage(gridRatio, i.next()));
}
}
break;
default:
combinedImage = null;
combinedImage = Factory.magnifyImage(gridRatio, renderedImage);
Iterator<BufferedImage> i = originalGridImages.iterator();
while (i.hasNext()) {
gridImages.add(Factory.magnifyImage(gridRatio, i.next()));
}
}
}
/**
* Sets the rendered image.
*
* @param image The image to set.
*/
void setRenderedImage(BufferedImage image) {
renderedImage = null;
displayedImage = null;
combinedImage = null;
clearList(gridImages);
renderedImage = image;
if (renderedImage != null) {
if (init) {
int imageWidth = image.getWidth();
if (imageWidth < ImViewer.MINIMUM_SIZE) {
ratio = 1;
gridRatio = 1;
setUnitBar(false);
}
if (imageWidth * ratio > ImViewer.MAXIMUM_SIZE)
ratio = (double) ImViewer.MAXIMUM_SIZE / imageWidth;
init = false;
}
}
}
/** Clears the grid images when the color model changes. */
void clearGridImages() {
clearList(gridImages);
if (gridImagesAsTextures != null) gridImagesAsTextures.clear();
// if (originalGridImages != null) originalGridImages.clear();
}