Bug 82743 [Markers] improved problem filter needed (OR clauses)
when working with large workspaces I find the current problems filter not powerful enough. If I were able to AND and OR the conditions available from the UI then I would solve all my use cases. my most needed one is : I would like to see ERRORS anywhere in the workspace OR WARNINGS in the current selected project
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
updateFilterSelection(resources);
            refresh();
        }
    }
    private boolean updateNeeded(IResource[] oldResources,
            IResource[] newResources) {
        
        MarkerFilter filter = getFilter();
        if (!filter.isEnabled()) {
            return false;
        }
        int onResource = filter.getOnResource();
        if (onResource == MarkerFilter.ON_ANY_RESOURCE
                || onResource == MarkerFilter.ON_WORKING_SET) {
            return false;
        }
        if (newResources == null || newResources.length < 1) {
            return false;
        }
        if (oldResources == null || oldResources.length < 1) {
            return true;
        }
        if (Arrays.equals(oldResources, newResources)) {
            return false;
        }
        if (onResource == MarkerFilter.ON_ANY_RESOURCE_OF_SAME_PROJECT) {
            Collection oldProjects = MarkerFilter
                    .getProjectsAsCollection(oldResources);
            Collection newProjects = MarkerFilter
                    .getProjectsAsCollection(newResources);