Examples of org.eclipse.jface.text.contentassist.ICompletionProposal

Package org.eclipse.jface.text.contentassist

Examples of org.eclipse.jface.text.contentassist.ICompletionProposal

org.eclipse.jface.text.contentassist.ICompletionProposal
The interface of completion proposals generated by content assist processors. A completion proposal contains information used to present the proposed completion to the user, to insert the completion should the user select it, and to present context information for the chosen completion once it has been inserted.
In order to provide backward compatibility for clients of ICompletionProposal, extension interfaces are used to provide a means of evolution. The following extension interfaces exist:
- {@link org.eclipse.jface.text.contentassist.ICompletionProposalExtension} since version 2.0 introducingthe following functions:
  - handling of trigger characters other than ENTER
  - completion proposal validation for a given offset
  - context information can be freely positioned
- {@link org.eclipse.jface.text.contentassist.ICompletionProposalExtension2} since version 2.1 introducingthe following functions:
  - handling of trigger characters with modifiers
  - visual indication for selection of a proposal
- {@link org.eclipse.jface.text.contentassist.ICompletionProposalExtension3} since version 3.0 introducingthe following functions:
  - provision of a custom information control creator
  - provide a custom completion text and offset for prefix completion
- {@link org.eclipse.jface.text.contentassist.ICompletionProposalExtension4} since version 3.1 introducingthe following functions:
  - specify whether a proposal is automatically insertable
- {@link org.eclipse.jface.text.contentassist.ICompletionProposalExtension5} since version 3.2 introducingthe following function:
  - Allow background computation of the additional info
- {@link org.eclipse.jface.text.contentassist.ICompletionProposalExtension6} since version 3.4 introducingthe following function:
  - Allow styled ranges in the display string.
This interface can be implemented by clients. By default, clients use {@link org.eclipse.jface.text.contentassist.CompletionProposal} as thestandard implementer of this interface.
@see IContentAssistProcessor

   *
   * @param stateMask the state mask
   * @since 2.1
   */
  private void selectProposalWithMask(int stateMask) {
    ICompletionProposal p= getSelectedProposal();
    hide();
    if (p != null)
      insertProposal(p, (char) 0, stateMask, fViewer.getSelectedRange().x);
  }

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   * @param proposals the proposals
   */
  private void setProposals(ICompletionProposal[] proposals) {
    if (Helper2.okToUse(fProposalTable)) {


      ICompletionProposal oldProposal= getSelectedProposal();
      if (oldProposal instanceof ICompletionProposalExtension2)
        ((ICompletionProposalExtension2) oldProposal).unselected(fViewer);


      fFilteredProposals= proposals;


      fProposalTable.setRedraw(false);
      fProposalTable.removeAll();


      Point selection= fViewer.getSelectedRange();
      int endOffset;
      endOffset= selection.x + selection.y;
      IDocument document= fViewer.getDocument();
      boolean validate= false;
      if (selection.y != 0 && document != null) validate= true;
      int selectionIndex= 0;


      TableItem item;
      ICompletionProposal p;
      for (int i= 0; i < proposals.length; i++) {
        p= proposals[i];
        item= new TableItem(fProposalTable, SWT.NULL);
        if (p.getImage() != null)
          item.setImage(p.getImage());
        
        String displayString;
        StyleRange[] styleRanges= null;
        if (fIsColoredLabelsSupportEnabled && p instanceof ICompletionProposalExtension6) {
          StyledString styledString= ((ICompletionProposalExtension6)p).getStyledDisplayString();
          displayString= styledString.getString();
          styleRanges= styledString.getStyleRanges();
        } else
          displayString= p.getDisplayString();


        item.setText(displayString);
        if (fIsColoredLabelsSupportEnabled)
          TableOwnerDrawSupport.storeStyleRanges(item, 0, styleRanges);

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        case '\t':
//          hide();
          break;


        default:
          ICompletionProposal p= getSelectedProposal();
        if (p instanceof ICompletionProposalExtension) {
          ICompletionProposalExtension t= (ICompletionProposalExtension) p;
          char[] triggers= t.getTriggerCharacters();
          if (contains(triggers, key)) {
            hide();

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   * @param smartToggle <code>true</code> if the smart toogle key has been pressed
   * @since 2.1
   */
  private void selectProposal(int index, boolean smartToggle) {


    ICompletionProposal oldProposal= getSelectedProposal();
    if (oldProposal instanceof ICompletionProposalExtension2)
      ((ICompletionProposalExtension2) oldProposal).unselected(fViewer);


    ICompletionProposal proposal= fFilteredProposals[index];
    if (proposal instanceof ICompletionProposalExtension2)
      ((ICompletionProposalExtension2) proposal).selected(fViewer, smartToggle);


    fLastProposal= proposal;

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        RuleCompletionProcessor.addAllNewProposals( proposals,
                                                    newProposals );


        assertTrue( proposals.size() == 2 );


        ICompletionProposal prop = (ICompletionProposal) proposals.get( 1 );
        assertEquals( "getNoName() Object - MyObject",
                      prop.getDisplayString() );
    }

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    }


    public static void addAllNewProposals(final Collection proposals,
                                          final Collection newProposals) {
        for ( Iterator iter = newProposals.iterator(); iter.hasNext(); ) {
            ICompletionProposal newProp = (ICompletionProposal) iter.next();
            String displayString = newProp.getDisplayString();


            //JBRULES-1134 do not add completions if they already exist
            if ( !containsProposal( proposals,
                                    displayString ) ) {
                proposals.add( newProp );

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     * The match is based on the first token based on a space split
     */
    public static boolean containsProposal(final Collection proposals,
                                           String newProposal) {
        for ( Iterator iter = proposals.iterator(); iter.hasNext(); ) {
            ICompletionProposal prop = (ICompletionProposal) iter.next();
            String displayString = prop.getDisplayString();
            String[] existings = displayString.split( " " );
            if ( existings.length == 0 ) {
                continue;
            }

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        List<ICompletionProposal> proposalList = new ArrayList<ICompletionProposal>();
        for ( String string : proposals )
        {
            if ( string.toUpperCase().startsWith( attribute.toUpperCase() ) )
            {
                ICompletionProposal proposal = new CompletionProposal( string + ", ", start, //$NON-NLS-1$
                    documentOffset - start, string.length() + 2, null, string, null, null );
                proposalList.add( proposal );
            }
        }
        return proposalList.toArray( new ICompletionProposal[proposalList.size()] );

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        ICompletionProposal[] oldProposals = computeCompletionProposals( position );
        IContentProposal[] proposals = new IContentProposal[oldProposals.length];
        for ( int i = 0; i < oldProposals.length; i++ )
        {
            final ICompletionProposal oldProposal = oldProposals[i];
            final Document document = new Document( contents );
            oldProposal.apply( document );


            proposals[i] = new IContentProposal()
            {
                public String getContent()
                {
                    return document.get();
                }




                public int getCursorPosition()
                {
                    return oldProposal.getSelection( document ).x;
                }




                public String getDescription()
                {
                    return oldProposal.getAdditionalProposalInfo();
                }




                public String getLabel()
                {
                    return oldProposal.getDisplayString();
                }




                public String toString()
                {

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                    else
                    {
                        displayString += " (" + description.getOid() + ")"; //$NON-NLS-1$ //$NON-NLS-2$
                    }
                    String info = SchemaUtils.getLdifLine( description );
                    ICompletionProposal proposal = new CompletionProposal( replacementString, offset, attributeType
                        .length(), replacementString.length(), getAttributeTypeImage(), displayString, null, info );
                    proposalList.add( proposal );
                }
            }
        }

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