Java 类com.intellij.util.ui.JBEmptyBorder 实例源码

private static ActionToolbar createToolbarFromGroupId(final String groupId) {
    final ActionManager actionManager = ActionManager.getInstance();

    if (!actionManager.isGroup(groupId)) {
        throw new IllegalStateException(groupId + " should have been a group");
    }
    final ActionGroup group = ((ActionGroup)actionManager.getAction(groupId));
    final ActionToolbarImpl editorToolbar =
            ((ActionToolbarImpl)actionManager.createActionToolbar(ActionPlaces.EDITOR_TOOLBAR, group, true));
    editorToolbar.setOpaque(false);
    editorToolbar.setBorder(new JBEmptyBorder(0, 2, 0, 2));

    return editorToolbar;
}