public void installColoredLabels(StructuredViewer viewer) {
if (fManagedViewers.containsKey(viewer)) {
return; // already installed
}
if (fManagedViewers.isEmpty()) {
// first viewer installed
PreferenceConstants.getPreferenceStore().addPropertyChangeListener(this);
fColorRegisty.addListener(this);
}
fManagedViewers.put(viewer, new ManagedViewer(viewer));
}
private void inititalizeColors() {
if (getSite().getShell().isDisposed()) return;
Display display = getSite().getShell().getDisplay();
if (display == null || display.isDisposed()) return;
setForeground(display.getSystemColor(SWT.COLOR_INFO_FOREGROUND));
ColorRegistry registry = JFaceResources.getColorRegistry();
registry.addListener(this);
fBackgroundColorRGB = registry.getRGB(getBackgroundColorKey());
Color bgColor;
if (fBackgroundColorRGB == null) {
bgColor = display.getSystemColor(SWT.COLOR_INFO_BACKGROUND);
fBackgroundColorRGB = bgColor.getRGB();
} else {
bgColor = new Color(display, fBackgroundColorRGB);
fBackgroundColor = bgColor;
}
setBackground(bgColor);
}
