Module java.desktop

Package javax.swing.plaf.metal

Class MetalTreeUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.TreeUI

javax.swing.plaf.basic.BasicTreeUI

javax.swing.plaf.metal.MetalTreeUI

       public class MetalTreeUI extends BasicTreeUI
      

TreeUI的金属外观实现。

MetalTreeUI允许配置如何在节点之间视觉上呈现间距和分隔。支持以下提示：

支持的提示描述：Angled、Horizontal和None

提示	描述
Angled	绘制连接子节点和父节点的线条。有关根节点处理，请参考JTree.setRootVisible(boolean)和JTree.setShowsRootHandles(boolean)。
Horizontal	绘制水平线，分隔根节点的子节点。
None	不绘制节点之间的任何视觉指示。

由于通常无法从JTree获取TreeUI并将其转换为MetalTreeUI的实例，您可以通过客户端属性JTree.lineStyle启用此属性。例如，要切换到Horizontal样式，您可以执行：tree.putClientProperty("JTree.lineStyle", "Horizontal");

默认为Angled。

Nested Class Summary

Nested classes/interfaces declared in class javax.swing.plaf.basic.BasicTreeUI

BasicTreeUI.CellEditorHandler, BasicTreeUI.ComponentHandler, BasicTreeUI.FocusHandler, BasicTreeUI.KeyHandler, BasicTreeUI.MouseHandler, BasicTreeUI.MouseInputHandler, BasicTreeUI.NodeDimensionsHandler, BasicTreeUI.PropertyChangeHandler, BasicTreeUI.SelectionModelPropertyChangeHandler, BasicTreeUI.TreeCancelEditingAction, BasicTreeUI.TreeExpansionHandler, BasicTreeUI.TreeHomeAction, BasicTreeUI.TreeIncrementAction, BasicTreeUI.TreeModelHandler, BasicTreeUI.TreePageAction, BasicTreeUI.TreeSelectionHandler, BasicTreeUI.TreeToggleAction, BasicTreeUI.TreeTraverseAction

Field Summary

Fields declared in class javax.swing.plaf.basic.BasicTreeUI

cellEditor, collapsedIcon, createdCellEditor, createdRenderer, currentCellRenderer, depthOffset, drawingCache, editingComponent, editingPath, editingRow, editorHasDifferentSize, expandedIcon, largeModel, lastSelectedRow, leftChildIndent, nodeDimensions, preferredMinSize, preferredSize, rendererPane, rightChildIndent, stopEditingInCompleteEditing, totalChildIndent, tree, treeModel, treeSelectionModel, treeState, validCachedPreferredSize

Constructor Summary

Constructors

Constructor	Description
MetalTreeUI()	构造MetalTreeUI。

Method Summary

Modifier and Type	Method	Description
static ComponentUI	createUI(JComponent x)	构造MetalTreeUI。
protected void	decodeLineStyle(Object lineStyleFlag)	将传递给客户端属性的字符串与内部表示（当前为int）之间进行转换。
protected boolean	isLocationInExpandControl(int row, int rowLevel, int mouseX, int mouseY)	如果具有X坐标mouseX和Y坐标mouseY的点位于展开控件中，则返回true。
protected void	paintHorizontalSeparators(Graphics g, JComponent c)	绘制水平分隔线。

Methods declared in class javax.swing.plaf.basic.BasicTreeUI

cancelEditing, checkForClickInExpandControl, completeEditing, completeEditing, completeUIInstall, completeUIUninstall, configureLayoutCache, createCellEditorListener, createCellRendererPane, createComponentListener, createDefaultCellEditor, createDefaultCellRenderer, createFocusListener, createKeyListener, createLayoutCache, createMouseListener, createNodeDimensions, createPropertyChangeListener, createSelectionModelPropertyChangeListener, createTreeExpansionListener, createTreeModelListener, createTreeSelectionListener, drawCentered, drawDashedHorizontalLine, drawDashedVerticalLine, ensureRowsAreVisible, getBaseline, getBaselineResizeBehavior, getCellEditor, getCellRenderer, getClosestPathForLocation, getCollapsedIcon, getDropLineRect, getEditingPath, getExpandedIcon, getHashColor, getHorizontalLegBuffer, getLastChildPath, getLeadSelectionRow, getLeftChildIndent, getMaximumSize, getMinimumSize, getModel, getPathBounds, getPathForRow, getPreferredMinSize, getPreferredSize, getPreferredSize, getRightChildIndent, getRowCount, getRowForPath, getRowHeight, getRowX, getSelectionModel, getShowsRootHandles, getVerticalLegBuffer, handleExpandControlClick, installComponents, installDefaults, installKeyboardActions, installListeners, isDropLine, isEditable, isEditing, isLargeModel, isLeaf, isLocationInExpandControl, isMultiSelectEvent, isRootVisible, isToggleEvent, isToggleSelectionEvent, paintDropLine, paintExpandControl, paintHorizontalLine, paintHorizontalPartOfLeg, paintRow, paintVerticalLine, paintVerticalPartOfLeg, pathWasCollapsed, pathWasExpanded, prepareForUIInstall, prepareForUIUninstall, selectPathForEvent, setCellEditor, setCellRenderer, setCollapsedIcon, setEditable, setExpandedIcon, setHashColor, setLargeModel, setLeftChildIndent, setModel, setPreferredMinSize, setRightChildIndent, setRootVisible, setRowHeight, setSelectionModel, setShowsRootHandles, shouldPaintExpandControl, startEditing, startEditingAtPath, stopEditing, toggleExpandState, uninstallComponents, uninstallDefaults, uninstallKeyboardActions, uninstallListeners, updateCachedPreferredSize, updateCellEditor, updateDepthOffset, updateExpandedDescendants, updateLayoutCacheExpandedNodes, updateLeadSelectionRow, updateRenderer, updateSize

Methods declared in class javax.swing.plaf.ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount, installUI, paint, uninstallUI, update

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MetalTreeUI

             public MetalTreeUI()
            

构造MetalTreeUI。

Method Details

createUI

             public static ComponentUI createUI(JComponent x)
            

构造MetalTreeUI。

参数：

x - 一个组件

返回：

MetalTreeUI的实例

decodeLineStyle

             protected void decodeLineStyle(Object lineStyleFlag)
            

将传递给客户端属性的字符串与内部表示（当前为int）之间进行转换。

参数：

lineStyleFlag - 一个标志

isLocationInExpandControl

             protected boolean isLocationInExpandControl(int row, int rowLevel, int mouseX, int mouseY)
            

如果具有X坐标mouseX和Y坐标mouseY的点位于展开控件中，则返回true。

参数：

row - 一行

rowLevel - 一行级别

mouseX - X坐标

mouseY - Y坐标

返回：

如果具有X坐标mouseX和Y坐标mouseY的点位于展开控件中，则返回true。

paintHorizontalSeparators

             protected void paintHorizontalSeparators(Graphics g, JComponent c)
            

绘制水平分隔线。

参数：

g - Graphics的实例

c - 一个组件