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https://github.com/fofolee/uTools-Manuals.git
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238 lines
11 KiB
HTML
238 lines
11 KiB
HTML
<div class="header">
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<div class="subTitle">
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javax.swing
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</div>
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<h2 class="title" title="Interface Scrollable">Interface Scrollable</h2>
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</div><div class="contentContainer">
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<div class="description">
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<ul class="blockList">
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<li class="blockList">
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<dl>
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<dt>
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所有已知实现类：
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</dt>
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<dd>
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<span><a href="../../javax/swing/tree/DefaultTreeCellEditor.DefaultTextField.html" title="javax.swing.tree中的类">DefaultTreeCellEditor.DefaultTextField</a> ， <a href="../../javax/swing/JEditorPane.html" title="javax.swing中的类">JEditorPane</a> ， <a href="../../javax/swing/JFormattedTextField.html" title="javax.swing中的类">JFormattedTextField</a> ， <a href="../../javax/swing/JLayer.html" title="javax.swing中的类">JLayer</a> ， <a href="../../javax/swing/JList.html" title="javax.swing中的类">JList</a> ， <a href="../../javax/swing/JPasswordField.html" title="javax.swing中的类">JPasswordField</a> ， <a href="../../javax/swing/JTable.html" title="javax.swing中的类">JTable</a> ， <a href="../../javax/swing/JTextArea.html" title="javax.swing中的类">JTextArea</a> ， <a href="../../javax/swing/text/JTextComponent.html" title="javax.swing.text中的类">JTextComponent</a> ， <a href="../../javax/swing/JTextField.html" title="javax.swing中的类">JTextField</a> ， <a href="../../javax/swing/JTextPane.html" title="javax.swing中的类">JTextPane</a> ， <a href="../../javax/swing/JTree.html" title="javax.swing中的类">JTree</a></span>
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</dd>
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</dl>
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<hr/> <br/> <pre>public interface <span class="typeNameLabel">Scrollable</span></pre>
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<div class="block">
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<span>向JScrollPane等滚动容器提供信息的界面。</span>
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<span>可能用作查看JScrollPane视口（或其他滚动容器）的复杂组件应实现此接口。</span>
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</div>
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<dl>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<span><a href="../../javax/swing/JViewport.html" title="javax.swing中的类"><code>JViewport</code></a> ， <a href="../../javax/swing/JScrollPane.html" title="javax.swing中的类"><code>JScrollPane</code></a> ， <a href="../../javax/swing/JScrollBar.html" title="javax.swing中的类"><code>JScrollBar</code></a></span>
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</dd>
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</dl> </li>
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</ul>
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</div>
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<div class="summary">
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<ul class="blockList">
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<li class="blockList">
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<!-- ========== METHOD SUMMARY =========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.summary">
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<!-- --> </a> <h3>方法摘要</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
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<caption>
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<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t3"><span><a href="javascript:show(4);">抽象方法</a></span><span class="tabEnd"> </span></span>
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</caption>
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<tbody>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Method and Description</th>
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</tr>
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<tr class="altColor" id="i0">
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<td class="colFirst"><code><a href="../../java/awt/Dimension.html" title="class in java.awt">Dimension</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/Scrollable.html#getPreferredScrollableViewportSize--">getPreferredScrollableViewportSize</a></span>()</code>
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<div class="block">
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返回视图组件的视口的首选大小。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i1">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/Scrollable.html#getScrollableBlockIncrement-java.awt.Rectangle-int-int-">getScrollableBlockIncrement</a></span>(<a href="../../java/awt/Rectangle.html" title="class in java.awt">Rectangle</a> visibleRect, int orientation, int direction)</code>
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<div class="block">
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显示逻辑行或列的组件应计算将根据取向值完全暴露一行行或列的滚动增量。
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</div> </td>
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</tr>
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<tr class="altColor" id="i2">
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<td class="colFirst"><code>boolean</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/Scrollable.html#getScrollableTracksViewportHeight--">getScrollableTracksViewportHeight</a></span>()</code>
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<div class="block">
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如果视口总是强制此Scrollable的高度与视口的高度相匹配，则返回true。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i3">
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<td class="colFirst"><code>boolean</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/Scrollable.html#getScrollableTracksViewportWidth--">getScrollableTracksViewportWidth</a></span>()</code>
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<div class="block">
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如果视口总是强制此
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<code>Scrollable</code>的宽度与视口的宽度相匹配，则返回true。
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</div> </td>
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</tr>
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<tr class="altColor" id="i4">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/Scrollable.html#getScrollableUnitIncrement-java.awt.Rectangle-int-int-">getScrollableUnitIncrement</a></span>(<a href="../../java/awt/Rectangle.html" title="class in java.awt">Rectangle</a> visibleRect, int orientation, int direction)</code>
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<div class="block">
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显示逻辑行或列的组件应计算将根据取向值完全暴露一个新行或列的滚动增量。
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</div> </td>
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</tr>
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</tbody>
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</table> </li>
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</ul> </li>
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</ul>
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</div>
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<div class="details">
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<ul class="blockList">
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<li class="blockList">
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<!-- ============ METHOD DETAIL ========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.detail">
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<!-- --> </a> <h3>方法详细信息</h3> <a name="getPreferredScrollableViewportSize--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getPreferredScrollableViewportSize</h4> <pre><a href="../../java/awt/Dimension.html" title="class in java.awt">Dimension</a> getPreferredScrollableViewportSize()</pre>
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<div class="block">
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<span>返回视图组件的视口的首选大小。</span>
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<span>例如，JList组件的首选大小是<code>JList</code>其列表中所有单元格所需的大小。</span>
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<span>但是， <code>preferredScrollableViewportSize</code>的值是<code>JList.getVisibleRowCount</code>行所需的大小。</span>
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<span>没有任何影响视口大小的<code>getPreferredSize</code>应该在这里返回<code>getPreferredSize</code> 。</span>
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</div>
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<dl>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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一个JViewport的
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<code>JViewport</code>的视图是这个
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<code>Scrollable</code>
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../javax/swing/JComponent.html#getPreferredSize--"><code>JComponent.getPreferredSize()</code></a>
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</dd>
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</dl> </li>
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</ul> <a name="getScrollableUnitIncrement-java.awt.Rectangle-int-int-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getScrollableUnitIncrement</h4> <pre>int getScrollableUnitIncrement(<a href="../../java/awt/Rectangle.html" title="class in java.awt">Rectangle</a> visibleRect,
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int orientation,
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int direction)</pre>
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<div class="block">
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<span>显示逻辑行或列的组件应计算将根据取向值完全暴露一个新行或列的滚动增量。</span>
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<span>理想情况下，组件应通过返回完全暴露项目所需的距离来处理部分暴露的行或列。</span>
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<p> <span>滚动容器（如JScrollPane）将在用户请求单位滚动时使用此方法。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>visibleRect</code> - 在视口内可见的视图区域
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</dd>
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<dd>
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<code>orientation</code> - SwingConstants.VERTICAL或SwingConstants.HORIZONTAL。
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</dd>
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<dd>
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<code>direction</code> - 向上/向左滚动小于零，向下/向右大于零。
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</dd>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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<span>在指定方向滚动的“单位”增量。</span>
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<span>该值应始终为正。</span>
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../javax/swing/JScrollBar.html#setUnitIncrement-int-"><code>JScrollBar.setUnitIncrement(int)</code></a>
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</dd>
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</dl> </li>
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</ul> <a name="getScrollableBlockIncrement-java.awt.Rectangle-int-int-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getScrollableBlockIncrement</h4> <pre>int getScrollableBlockIncrement(<a href="../../java/awt/Rectangle.html" title="class in java.awt">Rectangle</a> visibleRect,
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int orientation,
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int direction)</pre>
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<div class="block">
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<span>显示逻辑行或列的组件应计算将根据取向值完全暴露一行行或列的滚动增量。</span>
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<p> <span>滚动容器（如JScrollPane）将在每次用户请求块滚动时使用此方法。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>visibleRect</code> - 在视口内可见的视图区域
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</dd>
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<dd>
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<code>orientation</code> - SwingConstants.VERTICAL或SwingConstants.HORIZONTAL。
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</dd>
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<dd>
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<code>direction</code> - 向上/向左滚动小于0，向下/向右大于零。
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</dd>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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<span>在指定方向滚动的“块”增量。</span>
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<span>该值应始终为正。</span>
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../javax/swing/JScrollBar.html#setBlockIncrement-int-"><code>JScrollBar.setBlockIncrement(int)</code></a>
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</dd>
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</dl> </li>
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</ul> <a name="getScrollableTracksViewportWidth--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getScrollableTracksViewportWidth</h4> <pre>boolean getScrollableTracksViewportWidth()</pre>
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<div class="block">
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<span>如果视口总是强制此<code>Scrollable</code>的宽度与视口的宽度相匹配，则返回true。</span>
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<span>例如，支持换行的常规文本视图在此处将返回true，因为包装线条不会超出视口右边缘消失。</span>
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<span>请注意，对于其祖先是JScrollPane的Scrollable，返回true将有效地禁用水平滚动。</span>
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<p> <span>滚动容器（如JViewport）将在每次验证时使用此方法。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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如果视口应强制Scrollables宽度与其自身匹配，则为True。
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</dd>
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</dl> </li>
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</ul> <a name="getScrollableTracksViewportHeight--">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>getScrollableTracksViewportHeight</h4> <pre>boolean getScrollableTracksViewportHeight()</pre>
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<div class="block">
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<span>如果视口总是强制此Scrollable的高度与视口的高度相匹配，则返回true。</span>
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<span>例如，从左到右列流动文本的柱状文本视图可以通过在此返回true来有效地禁用垂直滚动。</span>
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<p> <span>滚动容器（如JViewport）将在每次验证时使用此方法。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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如果视口应强制Scrollables高度与其自身匹配，则为true。
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</dd>
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</dl> </li>
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</ul> </li>
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</ul> </li>
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</ul>
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</div>
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</div> |