Examples of org.eclipse.jface.fieldassist.FieldDecorationRegistry$Entry

org.eclipse.jface.fieldassist.FieldDecorationRegistry
FieldDecorationRegistry is a common registry used to define shared field decorations within an application. Unlike resource registries, the FieldDecorationRegistry does not perform any lifecycle management of the decorations.

Clients may specify images for the decorations in several different ways. Images may be described by their image id in a specified {@link ImageRegistry}. In this case, the life cycle of the image is managed by the image registry, and the decoration registry will not attempt to obtain an image from the image registry until the decoration is actually requested. In cases where the client has access to an already-created image, the image itself can be specified when registering the decoration. In this case, the life cycle should be managed by the specifying client.
@see FieldDecoration @see ImageRegistry @since 3.2

   * Get a field decoration appropriate for cueing the user, including a
   * description of the active key binding.
   * 
   */
  private FieldDecoration getFieldDecoration() {
    FieldDecorationRegistry registry = FieldDecorationRegistry.getDefault();
    // Look for a decoration installed for this particular command id.
    String decId = CONTENT_ASSIST_DECORATION_ID + adapter.getCommandId();
    FieldDecoration dec = registry.getFieldDecoration(decId);


    // If there is not one, base ours on the standard JFace one.
    if (dec == null) {
      FieldDecoration originalDec = registry
          .getFieldDecoration(FieldDecorationRegistry.DEC_CONTENT_PROPOSAL);


      registry.registerFieldDecoration(decId, null, originalDec
          .getImage());
      dec = registry.getFieldDecoration(decId);
    }
    // Always update the decoration text since the key binding may
    // have changed since it was last retrieved.
    IBindingService bindingService = (IBindingService) PlatformUI
        .getWorkbench().getService(IBindingService.class);

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   * assist.
   * 
   * @since 3.3
   */
  private FieldDecoration getContentAssistFieldDecoration() {
    FieldDecorationRegistry registry = FieldDecorationRegistry.getDefault();
    // Look for a decoration installed for this particular command id.
    String decId = CONTENT_ASSIST_DECORATION_ID + getCommandId();
    FieldDecoration dec = registry.getFieldDecoration(decId);


    // If there is not one, base ours on the standard JFace one.
    if (dec == null) {
      FieldDecoration originalDec = registry
          .getFieldDecoration(FieldDecorationRegistry.DEC_CONTENT_PROPOSAL);


      registry.registerFieldDecoration(decId, null, originalDec
          .getImage());
      dec = registry.getFieldDecoration(decId);
    }
    // Always update the decoration text since the key binding may
    // have changed since it was last retrieved.
    IBindingService bindingService = (IBindingService) PlatformUI
        .getWorkbench().getService(IBindingService.class);

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     * 
     * @return true if the field is valid
     */
    public boolean validate(){
        System.out.println("Expression Viewer validate");
        FieldDecorationRegistry decorations = FieldDecorationRegistry.getDefault();        
        try {
            expr = ECQL.toExpression( text.getText() );
        } catch (CQLException e) {
            expr = null;
            feedback.setDescriptionText( e.getSyntaxError() );
            feedback.setImage( decorations.getFieldDecoration( FieldDecorationRegistry.DEC_ERROR).getImage() );
            feedback.show();
            return false;
        }
        if( expr == null ){
            feedback.setDescriptionText("(empty)");
            feedback.setImage( decorations.getFieldDecoration( FieldDecorationRegistry.DEC_ERROR).getImage() );
            feedback.show();
            
            return false; // so not valid!
        }
        if( isRequired && expr == Expression.NIL ){
            feedback.setDescriptionText("Required");
            feedback.setImage( decorations.getFieldDecoration( FieldDecorationRegistry.DEC_REQUIRED ).getImage() );
            feedback.show();
            
            return false;
        }
        feedback.setDescriptionText(null);

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    /**
     * Used to check for any validation messages (such as required field etc...)
     * @return Validation message
     */
    public String getValidationMessage(){
        FieldDecorationRegistry decorations = FieldDecorationRegistry.getDefault();
        if( feedback.getImage() == decorations.getFieldDecoration( FieldDecorationRegistry.DEC_ERROR).getImage() ){
            String errorMessage = feedback.getDescriptionText();
            if( errorMessage == null ){
                errorMessage = "invalid";
            }
            return errorMessage;
        }
        if( feedback.getImage() == decorations.getFieldDecoration( FieldDecorationRegistry.DEC_REQUIRED ).getImage() ){
            String requiredMessage = feedback.getDescriptionText();
            if( requiredMessage == null ){
                requiredMessage = "invalid";
            }
            return requiredMessage;

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     * encountered.
     * 
     * @return true if the field is valid
     */
    public boolean validate() {
        FieldDecorationRegistry decorations = FieldDecorationRegistry.getDefault();
        try {
            filter = ECQL.toFilter(text.getText());
        } catch (CQLException e) {
            filter = null;
            feedback.setDescriptionText(e.getSyntaxError());
            feedback.setImage(decorations.getFieldDecoration(FieldDecorationRegistry.DEC_ERROR)
                    .getImage());
            feedback.show();
            return false;
        }
        if (filter == null) {
            feedback.setDescriptionText("(empty)");
            feedback.setImage(decorations.getFieldDecoration(FieldDecorationRegistry.DEC_ERROR)
                    .getImage());
            feedback.show();


            return false; // so not valid!
        }
        if (isRequired && filter == Expression.NIL) {
            feedback.setDescriptionText("Required");
            feedback.setImage(decorations.getFieldDecoration(FieldDecorationRegistry.DEC_REQUIRED)
                    .getImage());
            feedback.show();


            return false;
        }

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     * Used to check for any validation messages (such as required field etc...)
     * 
     * @return Validation message
     */
    public String getValidationMessage() {
        FieldDecorationRegistry decorations = FieldDecorationRegistry.getDefault();
        if (feedback.getImage() == decorations
                .getFieldDecoration(FieldDecorationRegistry.DEC_ERROR).getImage()) {
            String errorMessage = feedback.getDescriptionText();
            if (errorMessage == null) {
                errorMessage = "invalid";
            }
            return errorMessage;
        }
        if (feedback.getImage() == decorations.getFieldDecoration(
                FieldDecorationRegistry.DEC_REQUIRED).getImage()) {
            String requiredMessage = feedback.getDescriptionText();
            if (requiredMessage == null) {
                requiredMessage = "invalid";
            }

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    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()) {

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    private void showFeedback( String message, Throwable t ) {
        feedbackDecorator.hide();
        feedbackDecorator.hideHover();
        if( t == null && message != null){
            // warning feedback!
            FieldDecorationRegistry decorations = FieldDecorationRegistry.getDefault();
            FieldDecoration errorDecoration = decorations.getFieldDecoration(FieldDecorationRegistry.DEC_WARNING);
            feedbackDecorator.setImage(errorDecoration.getImage());
            feedbackDecorator.setDescriptionText( message );
            feedbackDecorator.showHoverText( message );
            feedbackDecorator.show();
        }
        else if( t != null ){
            // if(! (t instanceof ReshapeException) ){
            // CatalogUIPlugin.log("error with reshape", t); //$NON-NLS-1$
            // }
            String errormessage = t.getLocalizedMessage();
            if( errormessage == null ){
                errormessage = Messages.ReshapeOperation_2;
            }
            else {
                // fix up really long CQL messages
                errormessage = errormessage.replaceAll("\\n\\s+", " ");
            }
            if( message == null ){
                message = MessageFormat.format(Messages.ReshapeOperation_3,errormessage);
            }
            
            FieldDecorationRegistry decorations = FieldDecorationRegistry.getDefault();
            FieldDecoration errorDecoration = decorations.getFieldDecoration(FieldDecorationRegistry.DEC_WARNING);
            feedbackDecorator.setImage(errorDecoration.getImage());
            feedbackDecorator.setDescriptionText( message );
            feedbackDecorator.showHoverText( message );
            feedbackDecorator.show();
        }

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        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()) {

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            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();

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