Example usage for org.eclipse.jface.viewers LabelDecorator prepareDecoration

Introduction

In this page you can find the example usage for org.eclipse.jface.viewers LabelDecorator prepareDecoration.

Prototype

public abstract boolean prepareDecoration(Object element, String originalText, IDecorationContext context);

Source Link

Document

Prepare the element for decoration.

Usage

From source file:org.eclipse.jubula.client.ui.provider.DecoratingCellLabelProvider.java

License:Open Source License

/**
 * {@inheritDoc}//from www.ja  va 2  s  .c om
 */
public void updateLabel(ViewerLabel settings, TreePath elementPath) {
    ILabelDecorator currentDecorator = getLabelDecorator();
    String oldText = settings.getText();
    Object element = elementPath.getLastSegment();
    boolean decorationReady = true;
    if (currentDecorator instanceof LabelDecorator) {
        LabelDecorator labelDecorator = (LabelDecorator) currentDecorator;
        if (!labelDecorator.prepareDecoration(element, oldText, getDecorationContext())) {
            // The decoration is not ready but has been queued for
            // processing
            decorationReady = false;
        }
    } else if (currentDecorator instanceof IDelayedLabelDecorator) {
        IDelayedLabelDecorator delayedDecorator = (IDelayedLabelDecorator) currentDecorator;
        if (!delayedDecorator.prepareDecoration(element, oldText)) {
            // The decoration is not ready but has been queued for
            // processing
            decorationReady = false;
        }
    }
    // settings.setHasPendingDecorations(!decorationReady);
    // update icon and label

    if (m_provider instanceof ITreePathLabelProvider) {
        ITreePathLabelProvider pprov = (ITreePathLabelProvider) m_provider;
        if (decorationReady || oldText == null || settings.getText().length() == 0) {
            pprov.updateLabel(settings, elementPath);
            decorateSettings(settings, elementPath);
        }
    } else {
        if (decorationReady || oldText == null || settings.getText().length() == 0) {
            settings.setText(getText(element));
        }

        Image oldImage = settings.getImage();
        if (decorationReady || oldImage == null) {
            settings.setImage(getImage(element));
        }

        if (decorationReady) {
            updateForDecorationReady(settings, element);
        }
    }

}

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