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Swt + Jface application

I want to use some libraries from eclipse to create standalone application.
JFace provides for instance SourceViewer, which is great if you need to show some code in your app (that is what i need). SourceViewer looks like that eclipse editor area and you can configure it as you want. It is really great.
The SourceViewer is configured via
public void configure(SourceViewerConfiguration configuration)
There is JavaSourceViewerConfiguration, which is subclass of SourceViewerConfiguration and it should be good if you want show Java code.
This is JavaSourceViewerConfiguration constructor.
public JavaSourceViewerConfiguration(IColorManager colorManager, IPreferenceStore preferenceStore, ITextEditor editor, String partitioning)
The last two parameters could be null, so the QUESTION is how to obtain properly configured IColorManager and IPreferenceStore instances?
What i currently have:
SourceViewer sv = new SourceViewer(sf, new CompositeRuler(), SWT.NONE);
LineNumberRulerColumn lnRuler = new LineNumberRulerColumn();
sv.addVerticalRulerColumn(lnRuler);
PreferenceStore pf = new PreferenceStore();
IColorManager cm = (new JavaTextTools(pf)).getColorManager();
sv.configure(new JavaSourceViewerConfiguration(cm, pf, null, null));
But in this code i always got
Exception in thread "main" java.lang.NullPointerException
at org.eclipse.jdt.ui.text.JavaSourceViewerConfiguration.getConfiguredTextHoverStateMasks(JavaSourceViewerConfiguration.java:639)
at org.eclipse.jface.text.source.SourceViewer.configure(SourceViewer.java:507)
at swtPokus.Main.main(Main.java:37)
I think it is because that PreferenceStore pf should be somehow configured so it contains keys and values which are used by the SourceViewer.
Question2 is where to get those value for PreferenceStore?

Get rid of Windows typical styles?

I will start developing application for Windows. But I want to get rid of the cancel button and the typical Windows format like:
And I want it to look something like that, get rid of windows format and design my application in my own way.
So, will somebody suggest me, how to do that? I searched so much but cannot find any result.

If this app. is written using the Swing GUI toolkit, it is as simple as either using a JWindow, or calling Frame.setUndecorated(true).

Hard to tell what language your question is, here is answer for C++ for WinAPI:
Create your window like that:
HWND hWnd;
WNDCLASS WndCls;
// Create the application window
WndCls.style = CS_HREDRAW | CS_VREDRAW;
WndCls.lpfnWndProc = WndProcedure;
WndCls.cbClsExtra = 0;
WndCls.cbWndExtra = 0;
WndCls.hIcon = NULL;
WndCls.hCursor = LoadCursor(NULL, IDC_ARROW);
WndCls.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
WndCls.lpszMenuName = NULL;
WndCls.lpszClassName = _T("WndClassName");
WndCls.hInstance = GetModuleHandle(NULL);
// Register the window class
RegisterClass(&WndCls);
hWnd = CreateWindow(_T("MyWnd"),
_T("WndClassName"),
WS_BORDER,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
::GetModuleHandle(0),
NULL);
and then:
::ShowWindow(hWnd, SW_SHOW);
SetWindowLong(hWnd, GWL_STYLE, 0);
you will have a white rectangle app which you will be able to paint however you like.
Also, you can spy on window styles using Spy++ from Visual Studio package

It's called the Titlebar. Hide it by removing the form border style.
this.FormBorderStyle= System.Windows.Forms.FormBorderStyle.None;

Render and Export FusionCharts on the Server

I am trying to render and export FusionCharts completely on the server. I am aware of solutions such as FCimg and FusionCharts .NET Solution. I have also implemented a Java solution that uses the Process class to run wkhtmltoimage.
However, I am trying to find a pure Java solution of doing this. I have an html file that includes FusionCharts JS Libraries and code to generate the fusion chart. I found JxBrowser that properly renders the chart but it requires X-Server for it to work on Linux. I also have tried Cobra/Lobo Browser but it does not fully support JavaScript. Are there any other ways to render and export fusion charts on the server or atleast render an html file that includes JavaScript completely in Java (and that does not require xserver)?
Thanks in advance for all the help!

Update: Solution that does not require xserver: WebRenderer. The Swing Edition is the only edition that supports HTML5 as of July 9th, 2012. You can use the swing edition to capture the image without a GUI.
I found a way that uses Eclipse's SWT Browser. However this cannot be run in an headless mode. You will have to use xserver to implement this. See this question.
Since this requires xserver and cannot be run in an headless mode, I would suggest using JxBrowser. It is a lot simpler and all you need is to generate an html file with all the fusion charts scripts. See #1, #2, #3
You have to create a template.html file that contains the header
(<html><head>), jquery.min.js, FusionCharts.js,
FusionCharts.HC.js, FusionCharts.HC.Charts.js. Make sure each of
these scripts are in their own script tags (<script type="text/javascript"> [js code] </script>)
Now add another JavaScript function with its own script tags containing the steps to render the chart. For example:
function load() { FusionCharts.setCurrentRenderer('javascript'); var chart = new FusionCharts("swf", 'chart0', "width", "height", "0", "1"); chart.setXMLData("XML DATA HERE"); chart.render("divNAMEHere"); }
Now you need to call the load() function onload, create a div to render the chart in, and end the html file. For example:
`
test
`
Create a new class that imports the eclipse swt browser libraries. Instantiate Display, Shell, and Browser (use this as a guideline to help understand what is happening: http://www.roseindia.net/tutorials/swt/swt-browser.shtml).
Set the text of the browser (browser.setText("htmlcode")) to the html code from template.html. The best way to do this would be to read the file using BufferedReader.
Lastly, the image takes some time to render. Now there is probably a better way to do this but if you want to just get it working, I set up a count and it captures the image after a certain number. This is what you need to add to the end:
int i = 0;
while (!shell.isDisposed())
{
if (!display.readAndDispatch())
{
display.sleep();
i++;
// System.out.println(i);
if(i==100)
{
GC source = new GC (shell);
Image image = new Image(display, browser.getClientArea());
source.copyArea(image, 0, 0);
ImageLoader io = new ImageLoader ();
io.data = new ImageData[] { image.getImageData() };
File f = new File (currentDir+"/workpng.png");
io.save (f.getAbsolutePath(), SWT.IMAGE_PNG);
}
}
}

Need help to open a subchart from a main chart?

I have the following chart:
Now my problem is I want to open a new chart containing the information for Linux OS when a user clicks on Linux portion of chart, shown in red. I have tried this:
//check if Linux OS is clicked on chart...
if("Linux".equals(chartMouseEvent.getEntity().getToolTipText()))
{
//open new chart having the information for Linux
}
But I think there may be some better alternate to do the same job.
So please help if you know how to achieve this.

ChartEntity is a good choice, but getToolTipText() is not the only resource available. The getURLText() method is also handy, using the information provided by the StandardPieURLGenerator. Alternatively, a custom implementation of PieURLGenerator can access the data set directly:
plot.setURLGenerator(new PieURLGenerator() {
public String generateURL(PieDataset dataset, Comparable key, int pieIndex) {
// access the dataset as required
}
});

Window ID from Java SWT

I would like to find the window ID of my SWT program.
I start up my SWT shell in the standard way. How do I then find the ID of the window that's been created? The program is executing on Fedora 10 using the Compiz-Fusion window manager (if that makes a difference).
Code to help explain what I mean:
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell();
// find window ID here??
shell.open();
while (!shell.isDisposed()) {
if(!display.readAndDispatch()) {
display.sleep();
}
}
}
Update 6 Mar 2009
After looking at and trying out a whole range of things (thanks to VonC for the suggestions below), I came across something that's worked so far. It's supremely dodgy but at least allows me to get on with some other work for the moment.
The ID returned from Control.embeddedHandle is close to the window ID. It's different by a predictable offset. So my code is:
public static void main(String[] args) {
...
Shell shell = new shell(display, SWT.NONE);
Composite e = new Composite(shell, SWT.EMBEDDED);
long windowID = e.embeddedHandle - WINDOW_ID_MAGIC_NUMBER;
e.dispose();
....
WINDOW_ID_MAGIC_NUMBER is 5+(number of widgets added to shell before the embedded composite).
It seems reliable on my system so far. I have yet to see if it falls over in a different environment.

If you create a Composite with the style SWT.EMBEDDED style, then under SWT/GTK+ Composite.embeddedHandle will be an X window ID you can use for parenting an XEMBED child.
Composite embed = new Composite(shell, SWT.EMBEDDED);
System.out.println ("X window ID: " + embed.embeddedHandle);
int hwndChild = OS.GetWindow ( c.handle, OS.GW_CHILD);
This supports embedding using the XEMBED protocol.
This is similar to the JNI code used to get the window ID from its handle
GtkWidget *widget = (GtkWidget *) handle;
GdkWindow *window = widget->window;
xwinid = GDK_WINDOW_XWINDOW(window);
Example of code here.
Example of class using OS:
org.eclipse.swt.widgets.Tree, org.eclipse.swt.widgets.CoolItem,
OS I can find is indeed org.eclipse.swt.internal.win32.OS, not gtk, and it is not a perfect solution because you would access an internal package, but that can give you an idea where to look.
In your case, org.eclipse.swt.internal.gtk.OS is the right class, and you should look in Tree or CoolItem sources how they are using the GetWindow function.
Some other function need to be called in GTK, like may be gtk_container_get_children(int container);
It is said in an answer to the message I was referring at the beginning
If you need the X window, there's no way to do this from the public SWT API (even going through internals), and furthermore even if there was a way I don't think you could guarantee it for all controls. I'm not sure if this works but the closest you could get might be to:
make Control.fixedHandle public
Use OS.GTK_WIDGET_WINDOW (control.fixedHandle) to get a GdkWindow
Use OS.gdk_x11_drawable_get_xid (gdkWindow) to translate that to an X window
I guess the other way might be to take Control.handle, and then call GTK_WIDGET_WINDOW() on it, or if that's null keep calling it on its parents until you find one with a GdkWindow, and then translate that to an X window.
The difficulty here is that SWT talks to GTK+, which talks to GDK, which then talks to X. So, there's three layers between you and the X window.

Not sure if this still matters to you, 7 years later :-), but this works for me:
private static long getWindowIdFromShell(Shell shell) {
long handle = shell.handle;
long topWidget = OS._gtk_widget_get_toplevel(handle);
long topWindow = OS._gtk_widget_get_window(topWidget);
long topXid = OS._gdk_x11_window_get_xid(topWindow);
return topXid;
}
In particular, the "get_toplevel" step is what jumps to the root widget/window, and so means you don't need the "minus magic window offset" hack (which I was initially stuck doing as well).