Examples of ITextSelection

org.eclipse.jface.text.ITextSelection
This interface represents a textual selection. A text selection is a range of characters. Although a text selection is a snapshot taken at a particular point in time, it must not copy the line information and the selected text from the selection provider.
If, for example, the selection provider is a text viewer ( {@link org.eclipse.jface.text.ITextViewer}), and a text selection is created for the range [5, 10], the line formation for the 5th character must not be determined and remembered at the point of creation. It can rather be determined at the point, when getStartLine is called. If the source viewer range [0, 15] has been changed in the meantime between the creation of the text selection object and the invocation of getStartLine, the returned line number may differ from the line number of the 5th character at the point of creation of the text selection object.
The contract of this interface is that weak in order to allow for efficient implementations.

Clients may implement this interface or use the default implementation provided by {@link org.eclipse.jface.text.TextSelection}.
@see org.eclipse.jface.text.TextSelection

Examples of org.eclipse.jface.text.ITextSelection


    IDocument document= getDocument(editor);
    if (document == null)
      return;


    ITextSelection selection= getSelection(editor);
    if (selection == null)
      return;


    try {
      fTarget.deleteLine(document, selection.getOffset(), selection.getLength(), fType, fCopyToClipboard);
    } catch (BadLocationException e) {
      // should not happen
    }
  }

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Examples of org.eclipse.jface.text.ITextSelection

   * @return the prefix at the current cursor position that will be used in
   *         the search for possible completions
   * @throws BadLocationException if accessing the document fails
   */
  private String getCurrentPrefix() throws BadLocationException {
    ITextSelection selection= (ITextSelection) getTextEditor().getSelectionProvider().getSelection();
    if (selection.getLength() > 0) {
      return null;
    }
    return fEngine.getPrefixString(fDocument, selection.getOffset());
  }

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Examples of org.eclipse.jface.text.ITextSelection


      ISelection s= part.getSelectionProvider().getSelection();
      if(s == null || s.isEmpty())
        return;


      ITextSelection selection= (ITextSelection) s;
      if(selection.getOffset() == 0 && selection.getLength() == 0)
        return;


      IDocument document= getDocument(part);
      Position position= new Position(selection.getOffset(), selection.getLength());
      if (installOnDocument(document, position)) {
        fDocument= document;
        fPosition= position;
        if (!part.isDirty())
          fSavedPosition= new Position(fPosition.offset, fPosition.length);

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Examples of org.eclipse.jface.text.ITextSelection

      return false;


    ISelectionProvider provider= part.getSite().getSelectionProvider();
    ISelection selection= provider.getSelection();
    if (selection instanceof ITextSelection) {
      ITextSelection textSelection= (ITextSelection) selection;
      if (textSelection.getOffset() == fPosition.offset && textSelection.getLength() == fPosition.length) {
        String text= textSelection.getText();
        if (text != null) {
          try {
            return text.equals(fDocument.get(fPosition.offset, fPosition.length));
          } catch (BadLocationException e) {
          }

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Examples of org.eclipse.jface.text.ITextSelection


      ISelection s= textEditor.getSelectionProvider().getSelection();
      if(s == null || s.isEmpty())
        return;


      ITextSelection selection= (ITextSelection) s;
      if(selection.getOffset() == 0 && selection.getLength() == 0)
        return;


      fPosition.offset= selection.getOffset();
      fPosition.length= selection.getLength();
      fPosition.isDeleted= false;


      if (!part.isDirty())
        fSavedPosition= new Position(fPosition.offset, fPosition.length);
    }

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Examples of org.eclipse.jface.text.ITextSelection


    IDocument document= getDocument(editor);
    if (document == null)
      return;


    ITextSelection selection= getSelection(editor);
    if (selection == null)
      return;


    int startLine= selection.getStartLine();
    int endLine= selection.getEndLine();
    try {
      int caretOffset= joinLines(document, startLine, endLine);
      if (caretOffset > -1)
        editor.selectAndReveal(caretOffset, 0);
    } catch (BadLocationException e) {

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Examples of org.eclipse.jface.text.ITextSelection

   */
  public boolean computeEnablement() {
    if (!super.computeEnablement())
      return false;


    ITextSelection selection= getSelection();
    if (selection == null)
      return false;
    fStartLine= selection.getStartLine();
    fEndLine= selection.getEndLine();
    // only enable if mouse activity is inside line range
    int activityLine= getLastLine();
    if (activityLine == -1 || activityLine < fStartLine || activityLine > fEndLine + 1)
      // + 1 to cover the case where the selection goes to the offset of the next line
      return false;

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Examples of org.eclipse.jface.text.ITextSelection

      if (ruler == null)
        lastLine= -1;
      else
        lastLine= ruler.getLineOfLastMouseButtonActivity();
    } else {
      ITextSelection selection= getSelection();
      if (selection == null)
        lastLine= -1;
      else
        lastLine= selection.getEndLine();
    }
    return lastLine;
  }

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Examples of org.eclipse.jface.text.ITextSelection

   * @see #rememberSelection()
   * @since 2.0
   */
  protected void restoreSelection() {
    if (fRememberedSelection instanceof ITextSelection) {
      ITextSelection textSelection= (ITextSelection)fRememberedSelection;
      if (isValidSelection(textSelection.getOffset(), textSelection.getLength()))
        doSetSelection(fRememberedSelection);
    }
    fRememberedSelection= null;
  }

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Examples of org.eclipse.jface.text.ITextSelection

   * @param selection
   * @since 2.1
   */
  protected void doSetSelection(ISelection selection) {
    if (selection instanceof ITextSelection) {
      ITextSelection textSelection= (ITextSelection) selection;
      selectAndReveal(textSelection.getOffset(), textSelection.getLength());
    }
  }

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