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Imebra library shows completely gray image for transfer syntax 1.2.840.10008.1.2.1

Iam trying to use Imebra library to display DICOM images in android. Iam using version 5.0 of the library.
The bitmap shown is completely gray, transfer syntax for image is 1.2.840.10008.1.2.1.For other supported transfer syntax i.e JPEG it works fine.
Also I am unable to add VOILUT transform functionality as mentioned in documentation it gives error cons tructor not found for VOILUT.
Below is the code Iam using, VOILUT transform part is giving constructor not found. if i remove VOILUT transform part things work fine but for image with transfer syntax 1.2.840.10008.1.2.1 it shows completely grey image
private Bitmap fromDicom(String filePath, int frameNumber){
// have been applied).
Image dicomImage = loadedDataSet.getImageApplyModalityTransform(frameNumber);
// Use a DrawBitmap to build a stream of bytes that can be handled by the
// Android Bitmap class.
com.imebra.TransformsChain chain = new com.imebra.TransformsChain();
if( com.imebra.ColorTransformsFactory.isMonochrome(dicomImage.getColorSpace()))
{
// Retrieve the VOIs (center/width pairs)
com.imebra.VOIs vois = loadedDataSet.getVOIs();
if(!vois.isEmpty())
{
// Get the first VOI setting from the dataset
chain.addTransform(new VOILUT(vois.get(0)));
}
else
{
// The dataset does not have any VOI setting, find the optimal one
com.imebra.SWIGTYPE_p_imebra__VOIDescription voiDescription = VOILUT.getOptimalVOI(dicomImage, 0, 0, dicomImage.getWidth(), dicomImage.getHeight());
chain.addTransform(new VOILUT(voiDescription));
}
}
DrawBitmap drawBitmap = new DrawBitmap(chain);
Memory memory = drawBitmap.getBitmap(dicomImage, drawBitmapType_t.drawBitmapRGBA, 4);
// Build the Android Bitmap from the raw bytes returned by DrawBitmap.
Bitmap renderBitmap = Bitmap.createBitmap((int)dicomImage.getWidth(), (int)dicomImage.getHeight(), Bitmap.Config.ARGB_8888);
byte[] memoryByte = new byte[(int)memory.size()];
memory.data(memoryByte);
ByteBuffer byteBuffer = ByteBuffer.wrap(memoryByte);
renderBitmap.copyPixelsFromBuffer(byteBuffer);
// Update the image
return renderBitmap;
}
After changing the code suggested by you, I don't find classes mentioned
VOIDescription instead i see class SWIGTYPE_p_imebra__VOIDescription should i use that class
There is one more error no getWidth() method available with vois.get(0).getWidth
One last Error i don't see class vois_t instead there is a class VOIs should VOIs be used
Thanks for the reponse

The VOILUT must be initialized with the proper contrast settings from the dataset like in the code below.
However, the dataset contains a VOI setting that is wrong (the window width is 0) so this file will be displayed correctly only if you use custom VOI settings or just use automatic settings when width is zero (see alternative code below which checks for width > 0).
Code that does not check for width:
if(com.imebra.ColorTransformsFactory.isMonochrome(dicomImage.getColorSpace());
{
// Retrieve the VOIs (center/width pairs)
com.imebra.vois_t vois = loadedDataSet.getVOIs();
if(!vois.isEmpty())
{
// Get the first VOI setting from the dataset
chain.addTransform(new VOILUT(vois.get(0)));
}
else
{
// The dataset does not have any VOI setting, find the optimal one
com.imebra.VOIDescription voiDescription = VOILUT.getOptimalVOI(dataSetImage, 0, 0, width, height);
chain.addTransform(new VOILUT(voiDescription));
}
}
Alternative code that checks if width is 0:
if(com.imebra.ColorTransformsFactory.isMonochrome(dicomImage.getColorSpace());
{
// Retrieve the VOIs (center/width pairs)
com.imebra.vois_t vois = loadedDataSet.getVOIs();
if(!vois.isEmpty() && vois.get(0).getWidth() > 0.1)
{
// Get the first VOI setting from the dataset
chain.addTransform(new VOILUT(vois.get(0)));
}
else
{
// The dataset does not have any VOI setting, find the optimal one
com.imebra.VOIDescription voiDescription = VOILUT.getOptimalVOI(dataSetImage, 0, 0, width, height);
chain.addTransform(new VOILUT(voiDescription));
}
}

generating swt shell at the center of its parent shell

I have SWT wizard page as my parent shell , for creating another shell on click of button i am writing following code
Shell permissionSetShell = new Shell(Display.getCurrent().getActiveShell(), SWT.CENTER|SWT.DIALOG_TRIM|SWT.APPLICATION_MODAL);
permissionSetShell.setText(PropertyClass.getPropertyLabel(QTLConstants.PERMISSION_SET_COLUMN_LABEL));
// Add shell to the center of parent wizard
permissionSetShell.setLayout(componentsRenderer.createGridLayout(1, false, 0, 5, 0, 0));
Monitor primary = Display.getCurrent().getPrimaryMonitor ();
Rectangle bounds = primary.getBounds ();
Rectangle rect = Display.getCurrent().getActiveShell().getBounds ();
int x = bounds.x + (bounds.width - rect.width) / 2;
int y = bounds.y + (bounds.height - rect.height)/2;
permissionSetShell.setLocation (x, y);
but as the child shell means this shell is not placed at the center of SWT wizard that is parent shell why?

Rectangle screenSize = display.getPrimaryMonitor().getBounds();
shell.setLocation((screenSize.width - shell.getBounds().width) / 2, (screenSize.height - shell.getBounds().height) / 2);

If you are writing a dialog or a child component you may want to use getParent instead of asking the display for the primary monitor so that the window is centered on the current screen for multiple monitor setups.
Rectangle parentSize = getParent().getBounds();
Rectangle shellSize = shell.getBounds();
int locationX = (parentSize.width - shellSize.width)/2+parentSize.x;
int locationY = (parentSize.height - shellSize.height)/2+parentSize.y;
shell.setLocation(new Point(locationX, locationY));

I think the best would be to use style SWT.SHEET for such dialog.

I just ran into this same problem. The solution I got is a little different. This might help others with the same issue. The context is a shell (hoverShell) that hovers over the parent (shell) for a couple of seconds displaying a message.
private void displayMessage(Shell shell, String message) {
Shell hoverShell = new Shell(shell, SWT.ON_TOP);
hoverShell.setLayout(new FillLayout());
Label messageLabel = new Label(hoverShell, SWT.NONE);
messageLabel.setText(message);
Point shellLocation = shell.getLocation();
hoverShell.pack();
hoverShell.setLocation(shellLocation.x + (shell.getSize().x / 2) - (hoverShell.getSize().x / 2), shellLocation.y + 40);
hoverShell.open();
Display.getDefault().timerExec(2000, new Runnable() {
#Override
public void run() {
hoverShell.dispose();
}
});
}
In a nutshell this is the following formula:
child_location.x = parent_location.x + .5*(parent_width.x) - .5*(child_width.x)
If you want y then it's the exact same I believe. May depend if the top border of the window is calculated.

tried, tested and working code:
int width = display.getClientArea().width;
int height = display.getClientArea().height;
shell.setLocation(((width - shell.getSize().x) / 2) + display.getClientArea().x, ((height - shell.getSize().y) / 2) + display.getClientArea().y);

How can i run my java application for virtual screens?

In Linux, we have virtual screens like desktop 1, 2, 3, 4. Most cases we use desktop 1 (screen 1, with one monitor).
Now, my question is how can i tell my java application to launch on desktop 2 (screen 2, with one monitor)
By default when i run java -cp /var/tmp/SystemX.jar run.X it will launch in desktop 1, screen 1. Which is not my case.
Tried: following but did not helped cause, it runs for dual monitor scenario. Not what i am expecting.
screen = Toolkit.getDefaultToolkit().getScreenSize();
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice[] screenDevices = ge.getScreenDevices();
for (int i = 0; i < screenDevices.length; i++) {
System.out.println(screenDevices[i].getIDstring());
int screenWidth = 1024;
int screenHeight = 764;
if (screenDevices[i].getDisplayMode()!=null) {
DisplayMode dm = screenDevices[i].getDisplayMode();
screenWidth = dm.getWidth();
screenHeight = dm.getHeight();
}
System.out.println("[myResolution]: " + screenWidth + " " + screenHeight);
screen.width = screenWidth;
screen.height = screenHeight;
}
Follow up:
#!/bin/sh
(export DISPLAY=:0.0 && java -cp /var/tmp/SystemX.jar run.X) & (wmctrl -r "WINDOW_TITLE" -t DESKTOP_NUMBER)
* But what if my application is border less, when it has no window title ? how do i tell wmctrl ?

The borderless applications should still have window titles. (ie. xfce4-panel shows.) You can check what they are by using:
wmctrl -l
From the command line. If you're having a hard time figuring out which window is yours, try the command before you open it, then once it's open. That way, you can just look for the new window.

Setting the component using setTabComponent

if I set a JButton as the tabComponent using
tabbedPane.setTabComponent(new JButton("test"));
The button covers a part of the tab while I can still see background of the tab.
But my requirement is to set this Button component on the tab completely as if the button should cover the whole tab as if there should be no access to that tab.

You might try using this method:
UIManager.put ( "TabbedPane.tabInsets", new Insets ( 0, 0, 0, 0 ) );
to remove tab insets and this one:
UIManager.put ( "TabbedPane.selectedTabPadInsets", new Insets ( 0, 0, 0, 0 ) );
to remove selected tab additional insets.
There is also a few other options that are usually taken from UI defaults:
highlight = UIManager.getColor("TabbedPane.light");
lightHighlight = UIManager.getColor("TabbedPane.highlight");
shadow = UIManager.getColor("TabbedPane.shadow");
darkShadow = UIManager.getColor("TabbedPane.darkShadow");
focus = UIManager.getColor("TabbedPane.focus");
selectedColor = UIManager.getColor("TabbedPane.selected");
textIconGap = UIManager.getInt("TabbedPane.textIconGap");
tabInsets = UIManager.getInsets("TabbedPane.tabInsets");
selectedTabPadInsets = UIManager.getInsets("TabbedPane.selectedTabPadInsets");
tabAreaInsets = UIManager.getInsets("TabbedPane.tabAreaInsets");
tabsOverlapBorder = UIManager.getBoolean("TabbedPane.tabsOverlapBorder");
contentBorderInsets = UIManager.getInsets("TabbedPane.contentBorderInsets");
tabRunOverlay = UIManager.getInt("TabbedPane.tabRunOverlay");
tabsOpaque = UIManager.getBoolean("TabbedPane.tabsOpaque");
contentOpaque = UIManager.getBoolean("TabbedPane.contentOpaque");
opaque = UIManager.get("TabbedPane.opaque");
You might want to modify some of them aswell to achieve what you need...

How to display frame only when required & set frame to appear on top all the time?

My program will alert users when data (stock name & price) in the database matches with the data (stock name and price) from Yahoo Finance. With the help of HarryJoy i'm able to implement a pop up notification.
Problem is the pop up location on the screen is based on the database loop (int db). The frame will pop even if data doesn't match.
How can I set a counter or some method to pop up the frame only when database data = Yahoo Finance data? Also, my notification panels appears to be behind the main frame. How can make the panels appear on top of my main frame?
I hope I've given enough information, please ask if still unclear. Any guidance will be appreciated! Thanks!
In the database (using code sample only to display my explanation in order, source code below).
Object 1 = match
Object 2 = doesn't match (hence there's a gap)
Object 3 = match
Object 4 = match
Screenshot:
Code:
for (int db=0; db<= rowCount; db++)
{
Object popSymbol = table.getModel().getValueAt(db, 0);
String popupSymbol = popSymbol.toString();
Object popValue = table.getModel().getValueAt(db, 1);
String str = popValue.toString();
double popStockValue = Double.valueOf(str).doubleValue();
String stockNameDB = popupSymbol;
StockPara stock = YahooStock.getInstance().getStockPrice(stockNameDB);
double stockPriceDB = Math.round(stock.getPrice());
final JFrame popUpFrame;
final JPanel popupPanel;
if (stockPriceDB == popStockValue)
{
String header = "Stock: " + stock.getTicker() + " is now # " + stock.getPrice();
String message = "";
popUpFrame = new JFrame();
popUpFrame.setSize(320,90);
popUpFrame.setUndecorated(true);
popUpFrame.getContentPane().setLayout(null);
popupPanel = new JPanel();
popupPanel.setBorder(new LineBorder(new Color(0, 0, 0)));
popupPanel.setBounds(0, 0, 320, 90);
getContentPane().add(popupPanel);
popupPanel.setBackground(new Color(255, 255, 224));
popupPanel.setLayout(null);
popUpFrame.add(popupPanel);
// Other labels, images, etc.
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Insets toolHeight = Toolkit.getDefaultToolkit().getScreenInsets(popUpFrame.getGraphicsConfiguration());
popUpFrame.setLocation(screenSize.width - popUpFrame.getWidth(), screenSize.height - toolHeight.bottom - (popUpFrame.getHeight() * (db+1)));
}
}

To solve your issue quickly, simply create an additional counter (int counter = 0;). Then use that counter instead of db to position your popUpFrame and right after that increment counter.
int counter = 0; // Initiate outside de loop
...
for(int db=0; db<= rowCount; db++) {
...
if (stockPriceDB == popStockValue) {
...
popUpFrame.setLocation(screenSize.width - popUpFrame.getWidth(),
screenSize.height - toolHeight.bottom - (popUpFrame.getHeight() * (counter+1)));
counter++;
}
}
To bring your frame to the front use:
popUpFrame.toFront()
and to force it to be always on top (although I would really not recommend that because it is more annoying for the user than anything else):
popUpFrame.setAlwaysOnTop(true);
This is not necessarily supported by all platforms.

for on top issue, use
notificationPanel.requestFocus();