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.

                    });
                }


                String description = propertyElement.getAttribute("description");
                if (description != null) {
                    ControlDecoration decoration = new ControlDecoration(label, SWT.RIGHT | SWT.CENTER);
                    decoration.setShowHover(true);
                    decoration.setDescriptionText(description);
                    decoration.setImage(FieldDecorationRegistry.getDefault().getFieldDecoration(FieldDecorationRegistry.DEC_INFORMATION).getImage());
                }


                String deprecation = propertyElement.getAttribute("deprecated");
                if (deprecation != null) {
                    ControlDecoration decoration = new ControlDecoration(label, SWT.LEFT | SWT.CENTER);
                    decoration.setShowHover(true);
                    decoration.setDescriptionText("Property deprecated: " + deprecation);
                    decoration.setImage(FieldDecorationRegistry.getDefault().getFieldDecoration(FieldDecorationRegistry.DEC_WARNING).getImage());
                }
            }
            Label summaryLabel = new Label(fieldContainer, SWT.NONE);
            summaryLabel.setText(summaryMessage);
            summaryLabel.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));

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        activatorProposalAdapter.setProposalAcceptanceStyle(ContentProposalAdapter.PROPOSAL_REPLACE);
        activatorProposalAdapter.setLabelProvider(new JavaContentProposalLabelProvider());
        activatorProposalAdapter.setAutoActivationDelay(1000);


        // Decorator for the Activator field
        ControlDecoration decorActivator = new ControlDecoration(txtActivator, SWT.LEFT | SWT.CENTER, composite);
        decorActivator.setImage(contentAssistDecoration.getImage());
        decorActivator.setMarginWidth(3);
        if (assistKeyStroke == null) {
            decorActivator.setDescriptionText("Content Assist is available. Start typing to activate");
        } else {
            decorActivator.setDescriptionText(MessageFormat.format("Content Assist is available. Press {0} or start typing to activate", assistKeyStroke.format()));
        }
        decorActivator.setShowOnlyOnFocus(true);
        decorActivator.setShowHover(true);


        // Decorator for the Components combo
        ControlDecoration decorComponents = new ControlDecoration(cmbComponents, SWT.LEFT | SWT.CENTER, composite);
        decorComponents.setImage(FieldDecorationRegistry.getDefault().getFieldDecoration(FieldDecorationRegistry.DEC_INFORMATION).getImage());
        decorComponents.setMarginWidth(3);
        decorComponents.setDescriptionText("Use Java annotations to detect Declarative Service Components.");
        decorComponents.setShowOnlyOnFocus(false);
        decorComponents.setShowHover(true);


        // Listeners
        txtVersion.addModifyListener(new ModifyListener() {
            @Override
            public void modifyText(ModifyEvent e) {

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    private Control createHelpLabel(Composite container, String text) {
        Label label = new Label(container, SWT.WRAP);
        label.setText(text);


        ControlDecoration decoration = new ControlDecoration(label, SWT.LEFT, container);
        Image imgInfo = FieldDecorationRegistry.getDefault().getFieldDecoration(FieldDecorationRegistry.DEC_INFORMATION).getImage();
        decoration.setImage(imgInfo);


        GridData gd = new GridData(SWT.FILL, SWT.FILL, true, false);
        gd.horizontalIndent = imgInfo.getBounds().width;
        gd.widthHint = 100;
        label.setLayoutData(gd);

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        sectProcessingErrors.setText("Processing Errors:");


        processingErrorsText = toolkit.createText(sectProcessingErrors, "", SWT.BORDER | SWT.MULTI | SWT.WRAP | SWT.READ_ONLY);
        sectProcessingErrors.setClient(processingErrorsText);


        ControlDecoration controlDecoration = new ControlDecoration(processingErrorsText, SWT.RIGHT | SWT.TOP);
        controlDecoration.setMarginWidth(2);
        controlDecoration.setDescriptionText("Double-click to view details");
        controlDecoration.setImage(FieldDecorationRegistry.getDefault().getFieldDecoration(FieldDecorationRegistry.DEC_CONTENT_PROPOSAL).getImage());


        gd = new GridData(SWT.FILL, SWT.FILL, true, true);
        gd.widthHint = 600;
        gd.heightHint = 300;
        sectProcessingErrors.setLayoutData(gd);

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    private void decorateComponents()
    {
        FieldDecoration infoDecor = FieldDecorationRegistry.getDefault().getFieldDecoration(
            FieldDecorationRegistry.DEC_INFORMATION);


        ControlDecoration txtBSNDecor = new ControlDecoration(txtBSN, SWT.LEFT
            | SWT.CENTER);
        txtBSNDecor.setImage(infoDecor.getImage());
        txtBSNDecor.setDescriptionText("The unique name of this bundle - should follow reverse domain name pattern");
        
        ControlDecoration txtVersionDecor = new ControlDecoration(txtVersion, SWT.LEFT
            | SWT.CENTER);
        txtVersionDecor.setImage(infoDecor.getImage());
        txtVersionDecor.setDescriptionText("The version of this bundle");
        
        ControlDecoration txtNameDecor = new ControlDecoration(txtName, SWT.LEFT
            | SWT.CENTER);
        txtNameDecor.setImage(infoDecor.getImage());
        txtNameDecor.setDescriptionText("Defines a human-readable name for the bundle");


        ControlDecoration txtDescDecor = new ControlDecoration(txtDescription, SWT.LEFT
            | SWT.CENTER);
        txtDescDecor.setImage(infoDecor.getImage());
        txtDescDecor.setDescriptionText("Defines a short human-readable description for the bundle");


        ControlDecoration txtVendorDecor = new ControlDecoration(txtVendor, SWT.LEFT
            | SWT.CENTER);
        txtVendorDecor.setImage(infoDecor.getImage());
        txtVendorDecor.setDescriptionText("The name of the company, organisation or individual providing the bundle");
    }

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            }
        }
        else
        {
            txtSelection = new Text(composite, SWT.BORDER);
            ControlDecoration selectionDecor = new ControlDecoration(txtSelection,
                SWT.LEFT | SWT.TOP);
            FieldDecoration proposalDecor = FieldDecorationRegistry.getDefault().getFieldDecoration(
                FieldDecorationRegistry.DEC_CONTENT_PROPOSAL);
            selectionDecor.setImage(proposalDecor.getImage());
            selectionDecor.setDescriptionText(proposalDecor.getDescription());


            ExclusionContentProposalProvider<E> proposalProvider = new ExclusionContentProposalProvider<E>(
                elements, filter, descriptor);


            proposalAdapter = new ContentProposalAdapter(txtSelection,

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            }
        }
        else
        {
            txtSelection = new Text(composite, SWT.BORDER);
            ControlDecoration selectionDecor = new ControlDecoration(txtSelection,
                SWT.LEFT | SWT.TOP);
            FieldDecoration proposalDecor = FieldDecorationRegistry.getDefault().getFieldDecoration(
                FieldDecorationRegistry.DEC_CONTENT_PROPOSAL);
            selectionDecor.setImage(proposalDecor.getImage());
            selectionDecor.setDescriptionText(proposalDecor.getDescription());
    
            ExclusionContentProposalProvider<E> proposalProvider = new ExclusionContentProposalProvider<E>(
                elements, filter, descriptor);
    
            proposalAdapter = new ContentProposalAdapter(txtSelection,

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     * This method will make use of an associated ControlDecoration if available.
     * </p>
     */
    protected void feedback(String warning){
        if( input != null && input.getFeedback() != null ){
            ControlDecoration feedback = input.getFeedback();
            
            feedback.setDescriptionText(warning);
            
            FieldDecorationRegistry decorations = FieldDecorationRegistry.getDefault();
            FieldDecoration errorDecoration = decorations.getFieldDecoration(FieldDecorationRegistry.DEC_WARNING);
            feedback.setImage(errorDecoration.getImage());
            feedback.show();
        }
        Control control = getControl();
        if (control != null && !control.isDisposed()) {
            control.setToolTipText(warning);
        }

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     * </p>
     */
    protected void feedback(String warning, boolean isRequired){
        if( isRequired ){
            if( input != null && input.getFeedback() != null ){
                ControlDecoration feedback = input.getFeedback();
                
                feedback.setDescriptionText(warning);
                
                FieldDecorationRegistry decorations = FieldDecorationRegistry.getDefault();
                if( isRequired ){
                    FieldDecoration requiredDecoration = decorations.getFieldDecoration(FieldDecorationRegistry.DEC_REQUIRED);
                    feedback.setImage(requiredDecoration.getImage());
                } else {
                    FieldDecoration warningDecoration = decorations.getFieldDecoration(FieldDecorationRegistry.DEC_WARNING );
                    feedback.setImage(warningDecoration.getImage());
                }
                feedback.show();
            }
            Control control = getControl();
            if (control != null && !control.isDisposed()) {
                control.setToolTipText(warning);
            }

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     * This method will make use of an associated ControlDecoration if available.
     * </p>
     */
    protected void feedback(String error, Throwable exception){
        if( input != null && input.getFeedback() != null ){
            ControlDecoration feedback = input.getFeedback();
            
            feedback.setDescriptionText(error);
            FieldDecorationRegistry decorations = FieldDecorationRegistry.getDefault();
            FieldDecoration warningDecoration = decorations.getFieldDecoration(FieldDecorationRegistry.DEC_WARNING);
            feedback.setImage(warningDecoration.getImage());
            feedback.show();
        }
        Control control = getControl();
        if (control != null && !control.isDisposed()) {
            control.setToolTipText(error+":"+exception);
        }

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