I'm trying to create a JAVA code formatter such that it doesn't wrap any lines. BUT for any lines in my code that I have manually wrapped I want the formatter to respect them and not format them in to one line.
For example:
public Class {
public Class(String a,
String b,
String c,
String d) {
// The constructor arguments should stay as they are
}
public void aMethod() {
// This statement should not be wrapped
get().doSomething().getAnohterMethodThatHasAReeeeeeeaalllyyLongName();
}
}
I have made the line width 9999 (the max), and I have turned off line wrapping for everything. What have I missed?
Thanks.
I opened the preference page for
"Java - Code Style - Formatter"
and activated "never join lines"
and selected "Do not wrap" in the combo box "line wrapping policy"
After this change i was able to write code, which was not wrapped.
Related
here is my code
function foo(){
}
after passing it through the default formatter(alt+shift+f) I get:
function foo() {
}
(note the added space in the first line)
My question is: how do I set up the formatter so it does not add the space?
I am currently working on an Eclipse plugin. In order to do an action, I need to listen to the caret listener of the active tab.
public void partOpened(IWorkbenchPartReference partRef) {
AbstractTextEditor e = (AbstractTextEditor) ((IEditorReference) partRef).getEditor(false);
StyledText sText = ((StyledText) e.getAdapter(Control.class));
sText.addCaretListener(new CaretListener() {
#Override
public void caretMoved(CaretEvent event) {
IDocument d = e.getDocumentProvider().getDocument(e.getEditorInput());
...
int line = d.getLineOfOffset(event.caretOffset);
Point p = sText.getLocationAtOffset(event.caretOffset);
}
});
}
I use this code to add the CaretListener on the latest opened tab.
The variable line is correct only when no code blocks are collapsed.
In fact, the offset returned by the event is linked to the StyledText, but I'd like to get the line number of the file.
This picture shows an example of folded text. The StyledText caret offset will give me something like line 6, 7 and 8, instead of 6, 7 and 12 (like Eclipse does).
Is there a way to "transform" the StyledText offset to a "real file" offset ? I could retrieve the line as a String and find it in the file, but it sounds like a bad idea.
Thanks !
For folding editors the editor's source viewer will implement ITextViewerExtension5 which provides a widgetOffset2ModelOffset method to make this adjustment.
Get the caret position using something like:
ISourceViewer sourceViewer = e.getSourceViewer();
int caret;
if (sourceViewer instanceof ITextViewerExtension5) {
ITextViewerExtension5 extension = (ITextViewerExtension5)sourceViewer;
caret = extension.widgetOffset2ModelOffset(styledText.getCaretOffset());
} else {
int offset = sourceViewer.getVisibleRegion().getOffset();
caret = offset + styledText.getCaretOffset();
}
I write editor as plugin to eclipse. I write it as extends TextEditor. And I need show line numbers and print margin. I cant find method where to set. Where can I set it? Maybe I extends wrong class.
Edit:
I fixed it like that:
public void setFocus() {
getPreferenceStore().setValue(AbstractDecoratedTextEditorPreferenceConstants.EDITOR_LINE_NUMBER_RULER, true);
getPreferenceStore().setValue(AbstractDecoratedTextEditorPreferenceConstants.EDITOR_PRINT_MARGIN, true);
getPreferenceStore().setValue(AbstractDecoratedTextEditorPreferenceConstants.EDITOR_PRINT_MARGIN_COLUMN, 72);
super.setFocus();
}
I want to get line number from Visual Studio. Is it possible ? Thanks
You can use CallerLineNumberAttribute
public void DoProcessing()
{
TraceMessage("Something happened.");
}
public void TraceMessage(string message,
[CallerLineNumber] int sourceLineNumber = 0)
{
Trace.WriteLine("message: " + message);
Trace.WriteLine("source line number: " + sourceLineNumber);
}
// Sample Output:
// message: Something happened.
// source line number: 31
If you just want to display line numbers in the IDE (as in your screenshot), follow these steps (tested in VS2012):
On the menu bar, choose Tools / Options. Expand the Text Editor node, then select either All Languages or, if you want it for just a specific language, open the node for the language you're using. Then check the Line Numbers checkbox in the Display section.
More info here on MSDN.
I love an Emacs feature to copy selection to clipboard automatically. Is it possible to do the same on Eclipse?
Environment: Windows XP, Helios
To copy a String from Eclipse to the clipboard, you can use
void copyToClipboard (String toClipboard, Display display){
String toClipboard = "my String";
Clipboard clipboard = new Clipboard(display);
TextTransfer [] textTransfer = {TextTransfer.getInstance()};
clipboard.setContents(new Object [] {toClipboard}, textTransfer);
clipboard.dispose();
}
Then you can call this method from a MouseAdapter or KeyAdapter, depending on where you want to get your String from. In your case it could be MouseAdapter, which listens to doubleclicks, gets the current cursor position of the text, marks the word and then adds the String to the clipboard.
edit to answer a question: You can set up your own MouseAdapater and attach it to buttons, text fields or whateer you like. Here's an example for a button:
Button btnGo1 = new Button(parent, SWT.NONE);
btnGo1.setText("Go");
btnGo1.addMouseListener(new MouseAdapter() {
#Override
public void mouseDoubleClick(MouseEvent e) {
//do what you want to do in here
}
});
If you want to implement mouseUp and mouseDown events, too, you can just add MouseListenerinstead of the Adapter. The only advantage of the Adapter is, that you don't have to override the other methods of the interface.
Since the original question was to automatically get the selection of the text of an editor: the way to get the selection from an editor is explained here.
You can try this plugin. Along with auto copy points mentioned in Eclipse show number of lines and/or file size also addressed.