org.eclipse.jface.text.DocumentEvent#getDocument ( )源码实例Demo

@Override
public void documentChanged(DocumentEvent event) {
	IDocument document = event.getDocument();
	try {
		int startLine = DocumentHelper.getStartLine(event);
		if (!DocumentHelper.isRemove(event)) {
			int endLine = DocumentHelper.getEndLine(event, false);
			// Insert new lines
			for (int i = startLine; i < endLine; i++) {
				DocumentLineList.this.addLine(i + 1);
			}
			if (startLine == endLine) {
				DocumentLineList.this.updateLine(startLine);
			}
		} else {
			// Update line
			DocumentLineList.this.updateLine(startLine);
		}
		invalidateLine(startLine);
	} catch (BadLocationException e) {
		TMUIPlugin.getDefault().getLog().log(new Status(IStatus.ERROR, TMUIPlugin.PLUGIN_ID, e.getMessage(), e));
	}
}
 

@Override
public void documentChanged(DocumentEvent event) {
    if (event.getDocument() instanceof JsonDocument) {
        final JsonDocument document = (JsonDocument) event.getDocument();

        document.onChange();
        Display.getCurrent().asyncExec(new Runnable() {
            @Override
            public void run() {
                if (contentOutline != null) {
                    // depends on the results of document.onChange()
                    contentOutline.setInput(getEditorInput());
                }
            }
        });
        // depends on the results of document.onChange()
        runValidate(false);
    }
}
 

/**
 * Determine if a selection is being replaced by non-emacs+ behavior (or YANK), and save the
 * replaced content in the kill ring. This captures the Eclipse (but not emacs) behavior where
 * typing/pasting into a selection replaces the old with the new, so it is appropriate to save
 * the old text to the kill ring.
 * 
 * @param event the DocumentEvent containing the IDocument, offset, and length
 * @return true if the non-zero length region matches the current selection in the editor
 */
private boolean isSelectionReplace(DocumentEvent event) {
	int len = event.getLength();
	// ignore plain insertion or any emacs+ (except YANK) command invocation
	if (selectionReplace &&  len > 0 && shouldSave()) {
		ITextEditor editor = EmacsPlusUtils.getCurrentEditor();
		// otherwise, if we can get the selection, see if it matches the replace region
		if (editor != null && editor.getDocumentProvider().getDocument(editor.getEditorInput()) == event.getDocument()) {
			ISelection isel = editor.getSelectionProvider().getSelection();
			if (isel instanceof ITextSelection) {
				ITextSelection selection = (ITextSelection)isel;
				boolean result = selection.getOffset() == event.getOffset() && selection.getLength() == len;
				return result;
			}
		}
	}
	return false;
}
 

@Override
public void documentChanged(DocumentEvent event) {
    final IDocument document = event.getDocument();
    if (shouldBuild()) {
        doBuild(document, allGroovyPartitions(document));
    }
}
 

public void documentChanged(DocumentEvent event) {
    if(!isAvailable()) {
        return;
    }

    LogFileTab tab = getSelectedTab();

    // activate / show the view and tab
    if (viewer.isShowWhenUpdated()) {
        //LogViewer view = null;
        try {
            //view = (LogViewer)
            PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().showView("de.anbos.eclipse.logviewer.plugin.LogViewer");
        } catch (PartInitException e) {
            e.printStackTrace();
        }

        // change selection
        if (event.getDocument() != tab.getDocument()) {
            // show active document
            Iterator<String> keyIterator = logTab.keySet().iterator();
            while(keyIterator.hasNext()) {
                Object key = keyIterator.next();
                LogFileTab newTab = logTab.get(key);
                if (event.getDocument() == newTab.getDocument()) {
                    showDocument(newTab.getDocument(),null,0,true);
                    tabfolder.setSelection(new TabItem[] {newTab.getItem()});
                    // send event to refresh encoding
                    Event newEvent = new Event();
                    newEvent.item = newTab.getItem();
                    tabfolder.notifyListeners(SWT.Selection, newEvent);
                    break;
                }
            }
        }
    }

    if(logTab != null && event.getDocument() == tab.getDocument() && viewer.getDocument() != null) {
        viewer.refresh();
        viewer.showBottomOfFile();
    }
    if (stopAfterChange) {
        stopAfterChange = false;
        stopTail();
    }
}