Java Code Examples for org.eclipse.jface.resource.ColorRegistry#getRGB()

protected XtextBrowserInformationControlInput getHoverInfo(EObject element, IRegion hoverRegion,
		XtextBrowserInformationControlInput previous) {
	String html = getHoverInfoAsHtml(element);
	if (html != null) {
		StringBuffer buffer = new StringBuffer(html);
		ColorRegistry registry = JFaceResources.getColorRegistry();
		RGB fgRGB = registry.getRGB("org.eclipse.ui.workbench.HOVER_FOREGROUND"); //$NON-NLS-1$
		RGB bgRGB = registry.getRGB("org.eclipse.ui.workbench.HOVER_BACKGROUND"); //$NON-NLS-1$
		if (fgRGB != null && bgRGB != null) {
			HTMLPrinter.insertPageProlog(buffer, 0, fgRGB, bgRGB, getStyleSheet());
		} else {
			HTMLPrinter.insertPageProlog(buffer, 0, getStyleSheet());
		}
		HTMLPrinter.addPageEpilog(buffer);
		html = buffer.toString();
		return new XtextBrowserInformationControlInput(previous, element, html, labelProvider);
	}
	return null;
}
 

@Override
protected XtextBrowserInformationControlInput getHoverInfo(EObject element, IRegion hoverRegion,
		XtextBrowserInformationControlInput previous) {
	//TODO remove this check when the typesystem works without a java project
	if (isValidationDisabled(element))
		return null;
	EObject objectToView = getObjectToView(element);
	if(objectToView == null || objectToView.eIsProxy())
		return null;
	String html = getHoverInfoAsHtml(element, objectToView, hoverRegion);
	if (html != null) {
		StringBuffer buffer = new StringBuffer(html);
		ColorRegistry registry = JFaceResources.getColorRegistry();
		RGB fgRGB = registry.getRGB("org.eclipse.ui.workbench.HOVER_FOREGROUND"); //$NON-NLS-1$
		RGB bgRGB = registry.getRGB("org.eclipse.ui.workbench.HOVER_BACKGROUND"); //$NON-NLS-1$
		if (fgRGB != null && bgRGB != null) {
			HTMLPrinter.insertPageProlog(buffer, 0, fgRGB, bgRGB, getStyleSheet());
		} else {
			HTMLPrinter.insertPageProlog(buffer, 0, getStyleSheet());
		}
		HTMLPrinter.addPageEpilog(buffer);
		html = buffer.toString();
		IJavaElement javaElement = null;
		if (objectToView != element && objectToView instanceof JvmIdentifiableElement) {
			javaElement = javaElementFinder.findElementFor((JvmIdentifiableElement) objectToView);
		}
		return new XbaseInformationControlInput(previous, objectToView, javaElement, html, labelProvider);
	}
	return null;
}
 

/**
 * Returns the RGB for the given key in the given color registry.
 *
 * @param key the key for the constant in the registry
 * @param defaultRGB the default RGB if no entry is found
 * @return RGB the RGB
 * @since 3.3
 */
private static RGB findRGB(String key, RGB defaultRGB) {
	if (!PlatformUI.isWorkbenchRunning())
		return defaultRGB;

	ColorRegistry registry= PlatformUI.getWorkbench().getThemeManager().getCurrentTheme().getColorRegistry();
	RGB rgb= registry.getRGB(key);
	if (rgb != null)
		return rgb;
	return defaultRGB;
}
 

/**
 * Returns the RGB for the given key in the given color registry.
 *
 * @param registry the color registry
 * @param key the key for the constant in the registry
 * @param defaultRGB the default RGB if no entry is found
 * @return RGB the RGB
 * @since 3.4
 */
private static RGB findRGB(ColorRegistry registry, String key, RGB defaultRGB) {
	if (registry == null)
		return defaultRGB;

	RGB rgb= registry.getRGB(key);
	if (rgb != null)
		return rgb;

	return defaultRGB;
}
 

private static RGB findRGB(ColorRegistry registry, String key, RGB defaultRGB) {
	if (registry == null)
		return defaultRGB;
	
	RGB rgb= registry.getRGB(key);
	if (rgb != null)
		return rgb;
	return defaultRGB;
}
 

/**
 * Returns the RGB for the given key in the given color registry.
 * 
 * @param registry
 *            the color registry
 * @param key
 *            the key for the constant in the registry
 * @param defaultRGB
 *            the default RGB if no entry is found
 * @return RGB the RGB
 * 
 */
private static RGB findRGB(ColorRegistry registry, String key, RGB defaultRGB) {
	RGB rgb = registry.getRGB(key);
	if (rgb != null)
		return rgb;
	return defaultRGB;
}
 

/**
 * Returns the RGB for the given key in the given color registry.
 *
 * @param registry
 *            the color registry
 * @param key
 *            the key for the constant in the registry
 * @param defaultRGB
 *            the default RGB if no entry is found
 * @return RGB the RGB
 */
private static RGB findRGB(ColorRegistry registry, String key, RGB defaultRGB) {
	if (registry == null) {
		return defaultRGB;
	}
	RGB rgb = registry.getRGB(key);
	if (rgb != null) {
		return rgb;
	}
	return defaultRGB;
}
 

/**
 * Attempts to lookup the RGB value for <code>key</code> from the color
 * registry. If one is not found, the <code>defaultRGB</code> is used.
 * 
 * @param registry
 *            The ColorRegistry to search for the RGB value
 * @param key
 *            The key that the RGB value is stored under in the registry
 * @param defaultRGB
 *            The default RGB value to return in the absence of one from the
 *            color registry
 * 
 * @return The RGB value from the color registry for a given key, if it
 *         exists. Otherwise, return the default RGB value.
 */
public static RGB findRGB( ColorRegistry registry, String key,
		RGB defaultRGB )
{
	if ( registry.hasValueFor( key ) )
		return registry.getRGB( key );
	return defaultRGB;
}