Examples of org.eclipse.jface.fieldassist.ControlDecoration

org.eclipse.jface.fieldassist.ControlDecoration
ControlDecoration renders an image decoration near a control. It allows clients to specify an image and a position for the image relative to the control. A ControlDecoration may be assigned description text, which can optionally be shown when the user hovers over the image. Clients can decorate any kind of control.
Decoration images always appear on the left or right side of the field, never above or below it. Decorations can be positioned at the top, center, or bottom of either side of the control. Future implementations may provide additional positioning options for decorations.
ControlDecoration renders the image adjacent to the specified (already created) control, with no guarantee that it won't be clipped or otherwise obscured or overlapped by adjacent controls, including another ControlDecoration placed in the same location. Clients should ensure that there is adequate space adjacent to the control to show the decoration properly.
Clients using ControlDecoration should typically ensure that enough margin space is reserved for a decoration by altering the layout data margins, although this is not assumed or required by the ControlDecoration implementation.
This class is intended to be instantiated and used by clients. It is not intended to be subclassed by clients. @since 3.3 @see FieldDecoration @see FieldDecorationRegistry @noextend This class is not intended to be subclassed by clients.

        // Create the control decoration warning image
        final Image fieldDecorationWarningImage;
        fieldDecorationWarningImage = FieldDecorationRegistry.getDefault().getFieldDecoration(
                FieldDecorationRegistry.DEC_ERROR).getImage();       
        // Create the control decoration
        warningDecorator = new ControlDecoration(cmbBands, SWT.RIGHT | SWT.CENTER);
        warningDecorator.setMarginWidth(4);
        warningDecorator.setImage(fieldDecorationWarningImage);
        warningDecorator.setDescriptionText("Warning!"); //$NON-NLS-1$
        warningDecorator.hide();

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    this.handlerService = (IHandlerService) PlatformUI.getWorkbench()
        .getService(IHandlerService.class);
    if (installDecoration) {
      // Note top left is used for compatibility with 3.2, although
      // this may change to center alignment in the future.
      decoration = new ControlDecoration(control, SWT.TOP | SWT.LEFT);
      decoration.setShowOnlyOnFocus(true);
      FieldDecoration dec = getContentAssistFieldDecoration();
      decoration.setImage(dec.getImage());
      decoration.setDescriptionText(dec.getDescription());
    }

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                {
                    add( availableObjectClassesViewer.getSelection() );
                }
            }
        } );
        ControlDecoration availableObjectClassesInstantSearchDecoration = new ControlDecoration(
            availableObjectClassesInstantSearch, SWT.TOP | SWT.LEFT, composite );
        availableObjectClassesInstantSearchDecoration.setDescriptionText( Messages
            .getString( "NewEntryObjectclassWizardPage.FilterDescription" ) ); //$NON-NLS-1$
        availableObjectClassesInstantSearchDecoration.setImage( FieldDecorationRegistry.getDefault()
            .getFieldDecoration( FieldDecorationRegistry.DEC_CONTENT_PROPOSAL ).getImage() );
        Button reloadButton = new Button( availableObjectClassesInstantSearchComposite, SWT.PUSH | SWT.FLAT );
        reloadButton.setToolTipText( Messages.getString( "NewEntryObjectclassWizardPage.ReloadSchema" ) ); //$NON-NLS-1$
        reloadButton.setImage( BrowserCommonActivator.getDefault().getImage( BrowserCommonConstants.IMG_REFRESH ) );
        reloadButton.addSelectionListener( new SelectionAdapter()

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     * @param none
     */
    public ExpressionViewer( Composite parent, int style ) {
        System.out.println("Expression Viewer");
        text = new Text( parent, style );
        feedback = new ControlDecoration(text, SWT.TOP | SWT.LEFT);
        
        FunctionFinder ff = new FunctionFinder(null);


        proposalProvider = new FunctionContentProposalProvider();
        proposalProvider.setFiltering(true);

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        label = new Label(parent, SWT.SINGLE );
        label.setText("Manual Filter");
        label.setLayoutData("cell 0 1,aligny top, gapx 0 unrelated"); // unrelated spacing after to leave room for label decoration
        
        ControlDecoration decoration = new ControlDecoration(label, SWT.RIGHT | SWT.TOP );
        filterViewer = new FilterViewer(parent, SWT.MULTI );
        filterViewer.getControl().setLayoutData("cell 1 1,grow,width 200:100%:100%,height 60:100%:100%");
        
        FilterInput input = new FilterInput();
        input.setFeedback( decoration );

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        info = new Text(composite, SWT.SINGLE | SWT.BORDER);
        info.setLayoutData(String.format(WIDTH_LAYOUT_FORMAT, CONTROL_WIDTH));
        info.addModifyListener(new ValidatingModifyListener());
        
        infoDecoration = new ControlDecoration(info, SWT.TOP | SWT.LEFT);
        final FieldDecoration errorFieldIndicator = FieldDecorationRegistry.getDefault()
                .getFieldDecoration(FieldDecorationRegistry.DEC_ERROR);
        infoDecoration.setImage(errorFieldIndicator.getImage());
        infoDecoration.hide();

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     * @param parent
     * @param none
     */
    public FilterViewer( Composite parent, int style ) {
        text = new Text(parent, style);
        feedback = new ControlDecoration(text, SWT.TOP | SWT.LEFT);


        proposalProvider = new FunctionContentProposalProvider();
        proposalProvider.setFiltering(true);
        ContentProposalAdapter adapter = new ContentProposalAdapter(text, new TextContentAdapter(),
                proposalProvider, null, null);

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        Label label = new Label(page, SWT.SINGLE );
        label.setText("Data Filter");
        label.setLayoutData("cell 0 0,aligny top, gapx 0 unrelated"); // unrelated spacing after to leave room for label decoration


        ControlDecoration decoration = new ControlDecoration(label, SWT.RIGHT | SWT.TOP );
        filter = new FilterViewer(page, SWT.MULTI );
        filter.getControl().setLayoutData("cell 1 0,grow,width 200:100%:100%,height 60:100%:100%");
        
        FilterInput input = new FilterInput();
        input.setFeedback(decoration);

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        Label label = new Label(panel, SWT.LEFT );
        label.setText("Transform");
        label.setLayoutData("width pref!,left,wrap");
        
        feedbackDecorator = new ControlDecoration(label, SWT.RIGHT|SWT.TOP);


        text = new Text(panel, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL );
        text.setEditable(true);
        text.setText(getDefaultText());

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        setControl(mainComposite);
        validate();
    }


    private ControlDecoration createControlDecoration(Control parent){
      ControlDecoration dec = new ControlDecoration(parent, SWT.TOP | SWT.LEFT);
      dec.setImage(PlatformUI.getWorkbench().
      getSharedImages().getImage(ISharedImages.IMG_DEC_FIELD_ERROR));
      dec.hide();
      return dec;
    }

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