uTools-Manuals/docs/java/javax/swing/JTree.DropLocation.html

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     javax.swing 
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<h2 class="title" title="Class JTree.DropLocation">Class JTree.DropLocation</h2>
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<ul class="inheritance">
<li><a href="../../java/lang/Object.html" title="class in java.lang">java.lang.Object</a></li>
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<ul class="inheritance">
<li><a href="../../javax/swing/TransferHandler.DropLocation.html" title="class in javax.swing">javax.swing.TransferHandler.DropLocation</a></li>
<li>
<ul class="inheritance">
<li>javax.swing.JTree.DropLocation</li>
</ul> </li>
</ul> </li>
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<dt>
         Enclosing class: 
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<dd>
<span><a href="../../javax/swing/JTree.html" title="javax.swing中的类">JTree</a></span>
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<hr/> <br/> <pre>public static final class <span class="typeNameLabel">JTree.DropLocation</span>
extends <a href="../../javax/swing/TransferHandler.DropLocation.html" title="class in javax.swing">TransferHandler.DropLocation</a></pre>
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        的一个子类 
       <code>TransferHandler.DropLocation</code>表示用于一个放置位置 
       <code>JTree</code> 。 
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<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
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<dd>
         1.6 
       </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JTree.html#getDropLocation--"><code>JTree.getDropLocation()</code></a>
</dd>
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<!-- ========== METHOD SUMMARY =========== -->
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<!-- --> </a> <h3>方法摘要</h3>
<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
<caption>
<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t4"><span><a href="javascript:show(8);">具体的方法</a></span><span class="tabEnd"> </span></span>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JTree.DropLocation.html#getChildIndex--">getChildIndex</a></span>()</code>
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              返回相对于由 
             <code>getPath()</code>返回的路径插入数据的索引。 
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<tr class="rowColor" id="i1">
<td class="colFirst"><code><a href="../../javax/swing/tree/TreePath.html" title="class in javax.swing.tree">TreePath</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JTree.DropLocation.html#getPath--">getPath</a></span>()</code>
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              返回放置在树中的数据的路径。 
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<td class="colFirst"><code><a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JTree.DropLocation.html#toString--">toString</a></span>()</code>
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              返回此放置位置的字符串表示形式。 
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<!-- --> </a> <h3>Methods inherited from class javax.swing.<a href="../../javax/swing/TransferHandler.DropLocation.html" title="class in javax.swing">TransferHandler.DropLocation</a></h3> <code><a href="../../javax/swing/TransferHandler.DropLocation.html#getDropPoint--">getDropPoint</a></code></li>
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<!-- --> </a> <h3>Methods inherited from class java.lang.<a href="../../java/lang/Object.html" title="class in java.lang">Object</a></h3> <code><a href="../../java/lang/Object.html#clone--">clone</a>, <a href="../../java/lang/Object.html#equals-java.lang.Object-">equals</a>, <a href="../../java/lang/Object.html#finalize--">finalize</a>, <a href="../../java/lang/Object.html#getClass--">getClass</a>, <a href="../../java/lang/Object.html#hashCode--">hashCode</a>, <a href="../../java/lang/Object.html#notify--">notify</a>, <a href="../../java/lang/Object.html#notifyAll--">notifyAll</a>, <a href="../../java/lang/Object.html#wait--">wait</a>, <a href="../../java/lang/Object.html#wait-long-">wait</a>, <a href="../../java/lang/Object.html#wait-long-int-">wait</a></code></li>
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<li class="blockList"> <h4>getChildIndex</h4> <pre>public int getChildIndex()</pre>
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<span>返回相对于由<code>getPath()</code>返回的路径插入的丢弃数据的索引。</span>
<p> <span>对于放置模式<code>DropMode.USE_SELECTION</code>和<code>DropMode.ON</code> ，该索引不重要（并且它将始终为<code>-1</code> ），因为唯一有趣的数据是发生丢弃操作的路径。</span> </p>
<p> <span>对于丢弃模式<code>DropMode.INSERT</code> ，该索引指示将数据插入由<code>getPath()</code>的父路径的<code>getPath()</code> 。</span> <span><code>-1</code>表示下降发生在<code>-1</code>身上，大多数情况下应该被视为插入到父项的子列表的开头或结尾。</span> </p>
<p> <span>对于<code>DropMode.ON_OR_INSERT</code> ，如果在路径本身发生了丢弃，则该值将是如上所述的插入索引，或<code>-1</code> 。</span> </p>
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<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             子索引 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JTree.DropLocation.html#getPath--"><code>getPath()</code></a>
</dd>
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<li class="blockList"> <h4>getPath</h4> <pre>public <a href="../../javax/swing/tree/TreePath.html" title="class in javax.swing.tree">TreePath</a> getPath()</pre>
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<span>返回放置在树中的数据的路径。</span>
<p> <span>该值的解释取决于组件上设置的放置模式。</span> <span>如果丢弃模式是<code>DropMode.USE_SELECTION</code>或<code>DropMode.ON</code> ，则返回值是数据已被（或将被）丢弃的树中的路径。</span> <span><code>null</code>表示下降是在空的空间，不与特定路径相关联。</span> </p>
<p> <span>如果丢弃模式为<code>DropMode.INSERT</code> ，则返回值是指应成为新数据的父节点的路径，在这种情况下， <code>getChildIndex()</code>指示应将新项目插入该父路径的位置。</span> <span><code>null</code>路径指示没有确定父路径，这可能由于多种原因：</span> </p>
<ul>
<li> <span>树没有模型</span> </li>
<li> <span>树上没有根</span> </li>
<li> <span>根被折叠</span> </li>
<li> <span>根是叶节点</span> </li>
</ul>
<span>由开发人员决定是否以及如何处理<code>null</code>案件。</span>
<p> <span>如果丢弃模式是<code>DropMode.ON_OR_INSERT</code> ， <code>getChildIndex</code>可以使用getChildIndex来确定丢弃是否位于路径本身（ <code>-1</code> ） <code>DropMode.ON_OR_INSERT</code> ，也可以用于确定其应该插入路径的索引（ <code>-1</code>以外的<code>-1</code> ）。</span> </p>
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<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             下降路径 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JTree.DropLocation.html#getChildIndex--"><code>getChildIndex()</code></a>
</dd>
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<li class="blockList"> <h4>toString</h4> <pre>public <a href="../../java/lang/String.html" title="class in java.lang">String</a> toString()</pre>
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<span>返回此放置位置的字符串表示形式。</span>
<span>此方法旨在用于调试目的，并且返回的字符串的内容和格式可能因实现而异。</span>
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<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/TransferHandler.DropLocation.html#toString--">toString</a></code>在类 
            <code><a href="../../javax/swing/TransferHandler.DropLocation.html" title="class in javax.swing">TransferHandler.DropLocation</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             此放置位置的字符串表示形式 
           </dd>
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