Bug 36487 call hierarchy: drop should set input
dropping a method to the call hierarchy view should have the same effect as 'focus on'
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/callhierarchy/CallHierarchyViewPart.java
}
        } catch (NumberFormatException e) {
            mode = CALL_MODE_CALLERS;
        }
        
        fCurrentCallMode = -1;
        
        setCallMode(mode);
    }
    private void initOrientation() {
        int orientation;
        try {
            orientation = fDialogSettings.getInt(DIALOGSTORE_VIEWORIENTATION);
            if ((orientation < 0) || (orientation > 2)) {
                orientation = VIEW_ORIENTATION_VERTICAL;
            }
        } catch (NumberFormatException e) {
            orientation = VIEW_ORIENTATION_VERTICAL;
        }
        
        fCurrentOrientation = -1;
        
        setOrientation(orientation);
    }
    private void initJavaLabelFormat() {
        int format;
        try {
            format = fDialogSettings.getInt(DIALOGSTORE_JAVA_LABEL_FORMAT);
            if (format > 0) {
                format = JAVA_LABEL_FORMAT_DEFAULT;