Gutter

java.lang.Object
- java.awt.Component
- - java.awt.Container
  - - javax.swing.JComponent
    - - javax.swing.JPanel
      - com.fr.design.gui.syntax.ui.rtextarea.Gutter

所有已实现的接口:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible
```
public class Gutter
extends javax.swing.JPanel
```
The gutter is the component on the left-hand side of the text area that displays optional information such as line numbers, fold regions, and icons (for bookmarks, debugging breakpoints, error markers, etc.).
Icons can be added on a per-line basis to visually mark syntax errors, lines with breakpoints set on them, etc. To add icons to the gutter, you must first call RTextScrollPane.setIconRowHeaderEnabled(boolean) on the parent scroll pane, to make the icon area visible. Then, you can add icons that track either lines in the document, or offsets, via addLineTrackingIcon(int, Icon) and addOffsetTrackingIcon(int, Icon), respectively. To remove an icon you've added, use removeTrackingIcon(GutterIconInfo).
In addition to support for arbitrary per-line icons, this component also has built-in support for displaying icons representing "bookmarks;" that is, lines a user can cycle through via F2 and Shift+F2. Bookmarked lines are toggled via Ctrl+F2. In order to enable bookmarking, you must first assign an icon to represent a bookmarked line, then actually enable the feature:
```
 Gutter gutter = scrollPane.getGutter();
 gutter.setBookmarkIcon(new ImageIcon("bookmark.png"));
 gutter.setBookmarkingEnabled(true);
 
```
版本:

1.0

作者:

Robert Futrell

另请参阅:
GutterIconInfo, 序列化表格

嵌套类概要
- 从类继承的嵌套类/接口 javax.swing.JPanel
  javax.swing.JPanel.AccessibleJPanel
- 从类继承的嵌套类/接口 javax.swing.JComponent
  javax.swing.JComponent.AccessibleJComponent
- 从类继承的嵌套类/接口 java.awt.Container
  java.awt.Container.AccessibleAWTContainer
- 从类继承的嵌套类/接口 java.awt.Component
  java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

字段概要

字段
限定符和类型字段和说明

static java.awt.Color DEFAULT_ACTIVE_LINE_RANGE_COLOR
The color used to highlight active line ranges if none is specified.
- 从类继承的字段 javax.swing.JComponent
  accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW
- 从类继承的字段 java.awt.Component
  BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
- 从接口继承的字段 java.awt.image.ImageObserver
  ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

字段
限定符和类型	字段和说明
`static java.awt.Color`	`DEFAULT_ACTIVE_LINE_RANGE_COLOR` The color used to highlight active line ranges if none is specified.

构造器概要

构造器
构造器和说明

Gutter(RTextArea textArea)
Constructor.

构造器
构造器和说明
`Gutter(RTextArea textArea)` Constructor.

方法概要

方法
限定符和类型	方法和说明
`GutterIconInfo`	`addLineTrackingIcon(int line, javax.swing.Icon icon)` Adds an icon that tracks an offset in the document, and is displayed adjacent to the line numbers.
`GutterIconInfo`	`addLineTrackingIcon(int line, javax.swing.Icon icon, java.lang.String tip)` Adds an icon that tracks an offset in the document, and is displayed adjacent to the line numbers.
`GutterIconInfo`	`addOffsetTrackingIcon(int offs, javax.swing.Icon icon)` Adds an icon that tracks an offset in the document, and is displayed adjacent to the line numbers.
`GutterIconInfo`	`addOffsetTrackingIcon(int offs, javax.swing.Icon icon, java.lang.String tip)` Adds an icon that tracks an offset in the document, and is displayed adjacent to the line numbers.
`java.awt.Color`	`getActiveLineRangeColor()` Returns the color used to paint the active line range, if any.
`javax.swing.Icon`	`getBookmarkIcon()` Returns the icon to use for bookmarks.
`GutterIconInfo[]`	`getBookmarks()` Returns the bookmarks known to this gutter.
`java.awt.Color`	`getBorderColor()` Returns the color of the "border" line.
`java.awt.Color`	`getFoldBackground()` Returns the background color used by the (default) fold icons.
`java.awt.Color`	`getFoldIndicatorForeground()` Returns the foreground color of the fold indicator.
`java.awt.Color`	`getLineNumberColor()` Returns the color to use to paint line numbers.
`java.awt.Font`	`getLineNumberFont()` Returns the font used for line numbers.
`int`	`getLineNumberingStartIndex()` Returns the starting line's line number.
`boolean`	`getLineNumbersEnabled()` Returns `true` if the line numbers are enabled and visible.
`boolean`	`getShowCollapsedRegionToolTips()` Returns whether tool tips are displayed showing the contents of collapsed fold regions when the mouse hovers over a +/- icon.
`GutterIconInfo[]`	`getTrackingIcons(java.awt.Point p)` Returns the tracking icons at the specified view position.
`boolean`	`isBookmarkingEnabled()` Returns whether bookmarking is enabled.
`boolean`	`isFoldIndicatorEnabled()` Returns whether the fold indicator is enabled.
`boolean`	`isIconRowHeaderEnabled()` Returns whether the icon row header is enabled.
`void`	`removeAllTrackingIcons()` Removes all tracking icons.
`void`	`removeTrackingIcon(GutterIconInfo tag)` Removes the specified tracking icon.
`void`	`setActiveLineRangeColor(java.awt.Color color)` Sets the color to use to render active line ranges.
`void`	`setBookmarkIcon(javax.swing.Icon icon)` Sets the icon to use for bookmarks.
`void`	`setBookmarkingEnabled(boolean enabled)` Sets whether bookmarking is enabled.
`void`	`setBorder(javax.swing.border.Border border)`
`void`	`setBorderColor(java.awt.Color color)` Sets the color for the "border" line.
`void`	`setComponentOrientation(java.awt.ComponentOrientation o)`
`void`	`setFoldBackground(java.awt.Color bg)` Sets the background color used by the (default) fold icons.
`void`	`setFoldIcons(javax.swing.Icon collapsedIcon, javax.swing.Icon expandedIcon)` Sets the icons to use to represent collapsed and expanded folds.
`void`	`setFoldIndicatorEnabled(boolean enabled)` Toggles whether the fold indicator is enabled.
`void`	`setFoldIndicatorForeground(java.awt.Color fg)` Sets the foreground color used by the fold indicator.
`void`	`setLineNumberColor(java.awt.Color color)` Sets the color to use to paint line numbers.
`void`	`setLineNumberFont(java.awt.Font font)` Sets the font used for line numbers.
`void`	`setLineNumberingStartIndex(int index)` Sets the starting line's line number.
`void`	`setShowCollapsedRegionToolTips(boolean show)` Toggles whether tool tips should be displayed showing the contents of collapsed fold regions when the mouse hovers over a +/- icon.
`boolean`	`toggleBookmark(int line)` Programatically toggles whether there is a bookmark for the specified line.

从类继承的方法 javax.swing.JPanel
getAccessibleContext, getUI, getUIClassID, paramString, setUI, updateUI

从类继承的方法 javax.swing.JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

从类继承的方法 java.awt.Container
add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree

从类继承的方法 java.awt.Component
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- 字段详细资料
  - DEFAULT_ACTIVE_LINE_RANGE_COLOR
```
public static final java.awt.Color DEFAULT_ACTIVE_LINE_RANGE_COLOR
```
    The color used to highlight active line ranges if none is specified.
- 构造器详细资料
  - Gutter
```
public Gutter(RTextArea textArea)
```
    Constructor.
    
    参数:
    textArea - The parent text area.
- 方法详细资料
  - addLineTrackingIcon
```
public GutterIconInfo addLineTrackingIcon(int line,
                                 javax.swing.Icon icon)
                                   throws javax.swing.text.BadLocationException
```
    Adds an icon that tracks an offset in the document, and is displayed adjacent to the line numbers. This is useful for marking things such as source code errors.
    
    参数:
    line - The line to track (zero-based).
    icon - The icon to display. This should be small (say 16x16).
    
    返回:
    A tag for this icon. This can later be used in a call to removeTrackingIcon(GutterIconInfo) to remove this icon.
    
    抛出:
    
    javax.swing.text.BadLocationException - If offs is an invalid offset into the text area.
    另请参阅:
    addLineTrackingIcon(int, Icon, String), addOffsetTrackingIcon(int, Icon), removeTrackingIcon(GutterIconInfo)
  - addLineTrackingIcon
```
public GutterIconInfo addLineTrackingIcon(int line,
                                 javax.swing.Icon icon,
                                 java.lang.String tip)
                                   throws javax.swing.text.BadLocationException
```
    Adds an icon that tracks an offset in the document, and is displayed adjacent to the line numbers. This is useful for marking things such as source code errors.
    
    参数:
    line - The line to track (zero-based).
    icon - The icon to display. This should be small (say 16x16).
    tip - An optional tool tip for the icon.
    
    返回:
    A tag for this icon. This can later be used in a call to removeTrackingIcon(GutterIconInfo) to remove this icon.
    
    抛出:
    
    javax.swing.text.BadLocationException - If offs is an invalid offset into the text area.
    另请参阅:
    addLineTrackingIcon(int, Icon), addOffsetTrackingIcon(int, Icon), removeTrackingIcon(GutterIconInfo)
  - addOffsetTrackingIcon
```
public GutterIconInfo addOffsetTrackingIcon(int offs,
                                   javax.swing.Icon icon)
                                     throws javax.swing.text.BadLocationException
```
    Adds an icon that tracks an offset in the document, and is displayed adjacent to the line numbers. This is useful for marking things such as source code errors.
    
    参数:
    offs - The offset to track.
    icon - The icon to display. This should be small (say 16x16).
    
    返回:
    A tag for this icon.
    
    抛出:
    
    javax.swing.text.BadLocationException - If offs is an invalid offset into the text area.
    另请参阅:
    addOffsetTrackingIcon(int, Icon, String), addLineTrackingIcon(int, Icon), removeTrackingIcon(GutterIconInfo)
  - addOffsetTrackingIcon
```
public GutterIconInfo addOffsetTrackingIcon(int offs,
                                   javax.swing.Icon icon,
                                   java.lang.String tip)
                                     throws javax.swing.text.BadLocationException
```
    Adds an icon that tracks an offset in the document, and is displayed adjacent to the line numbers. This is useful for marking things such as source code errors.
    
    参数:
    offs - The offset to track.
    icon - The icon to display. This should be small (say 16x16).
    tip - An optional tool tip for the icon.
    
    返回:
    A tag for this icon.
    
    抛出:
    
    javax.swing.text.BadLocationException - If offs is an invalid offset into the text area.
    另请参阅:
    addOffsetTrackingIcon(int, Icon), addLineTrackingIcon(int, Icon), removeTrackingIcon(GutterIconInfo)
  - getActiveLineRangeColor
```
public java.awt.Color getActiveLineRangeColor()
```
    Returns the color used to paint the active line range, if any.
    
    返回:
    The color.
    另请参阅:
    setActiveLineRangeColor(Color)
  - getBookmarkIcon
```
public javax.swing.Icon getBookmarkIcon()
```
    Returns the icon to use for bookmarks.
    
    返回:
    The icon to use for bookmarks. If this is null, bookmarking is effectively disabled.
    另请参阅:
    setBookmarkIcon(Icon), isBookmarkingEnabled()
  - getBookmarks
```
public GutterIconInfo[] getBookmarks()
```
    Returns the bookmarks known to this gutter.
    
    返回:
    The bookmarks. If there are no bookmarks, an empty array is returned.
  - getBorderColor
```
public java.awt.Color getBorderColor()
```
    Returns the color of the "border" line.
    
    返回:
    The color.
    另请参阅:
    setBorderColor(Color)
  - getFoldBackground
```
public java.awt.Color getFoldBackground()
```
    Returns the background color used by the (default) fold icons.
    
    返回:
    The background color.
    另请参阅:
    setFoldBackground(Color)
  - getFoldIndicatorForeground
```
public java.awt.Color getFoldIndicatorForeground()
```
    Returns the foreground color of the fold indicator.
    
    返回:
    The foreground color of the fold indicator.
    另请参阅:
    setFoldIndicatorForeground(Color)
  - getLineNumberColor
```
public java.awt.Color getLineNumberColor()
```
    Returns the color to use to paint line numbers.
    
    返回:
    The color used when painting line numbers.
    另请参阅:
    setLineNumberColor(Color)
  - getLineNumberFont
```
public java.awt.Font getLineNumberFont()
```
    Returns the font used for line numbers.
    
    返回:
    The font used for line numbers.
    另请参阅:
    setLineNumberFont(Font)
  - getLineNumberingStartIndex
```
public int getLineNumberingStartIndex()
```
    Returns the starting line's line number. The default value is 1.
    
    返回:
    The index
    另请参阅:
    setLineNumberingStartIndex(int)
  - getLineNumbersEnabled
```
public boolean getLineNumbersEnabled()
```
    Returns true if the line numbers are enabled and visible.
    
    返回:
    Whether or not line numbers are visible.
  - getShowCollapsedRegionToolTips
```
public boolean getShowCollapsedRegionToolTips()
```
    Returns whether tool tips are displayed showing the contents of collapsed fold regions when the mouse hovers over a +/- icon.
    
    返回:
    Whether these tool tips are displayed.
    另请参阅:
    setShowCollapsedRegionToolTips(boolean)
  - getTrackingIcons
```
public GutterIconInfo[] getTrackingIcons(java.awt.Point p)
                                  throws javax.swing.text.BadLocationException
```
    Returns the tracking icons at the specified view position.
    
    参数:
    p - The view position.
    
    返回:
    The tracking icons at that position. If there are no tracking icons there, this will be an empty array.
    
    抛出:
    
    javax.swing.text.BadLocationException - If p is invalid.
  - isFoldIndicatorEnabled
```
public boolean isFoldIndicatorEnabled()
```
    Returns whether the fold indicator is enabled.
    
    返回:
    Whether the fold indicator is enabled.
    另请参阅:
    setFoldIndicatorEnabled(boolean)
  - isBookmarkingEnabled
```
public boolean isBookmarkingEnabled()
```
    Returns whether bookmarking is enabled.
    
    返回:
    Whether bookmarking is enabled.
    另请参阅:
    setBookmarkingEnabled(boolean)
  - isIconRowHeaderEnabled
```
public boolean isIconRowHeaderEnabled()
```
    Returns whether the icon row header is enabled.
    
    返回:
    Whether the icon row header is enabled.
  - removeTrackingIcon
```
public void removeTrackingIcon(GutterIconInfo tag)
```
    Removes the specified tracking icon.
    
    参数:
    tag - A tag for an icon in the gutter, as returned from either addLineTrackingIcon(int, Icon) or addOffsetTrackingIcon(int, Icon).
    另请参阅:
    removeAllTrackingIcons(), addLineTrackingIcon(int, Icon), addOffsetTrackingIcon(int, Icon)
  - removeAllTrackingIcons
```
public void removeAllTrackingIcons()
```
    Removes all tracking icons.
    
    另请参阅:
    removeTrackingIcon(GutterIconInfo), addOffsetTrackingIcon(int, Icon)
  - setActiveLineRangeColor
```
public void setActiveLineRangeColor(java.awt.Color color)
```
    Sets the color to use to render active line ranges.
    
    参数:
    color - The color to use. If this is null, then the default color is used.
    另请参阅:
    getActiveLineRangeColor(), DEFAULT_ACTIVE_LINE_RANGE_COLOR
  - setBookmarkIcon
```
public void setBookmarkIcon(javax.swing.Icon icon)
```
    Sets the icon to use for bookmarks.
    
    参数:
    icon - The new bookmark icon. If this is null, bookmarking is effectively disabled.
    另请参阅:
    getBookmarkIcon(), isBookmarkingEnabled()
  - setBookmarkingEnabled
```
public void setBookmarkingEnabled(boolean enabled)
```
    Sets whether bookmarking is enabled. Note that a bookmarking icon must be set via setBookmarkIcon(Icon) before bookmarks are truly enabled.
    
    参数:
    enabled - Whether bookmarking is enabled.
    另请参阅:
    isBookmarkingEnabled(), setBookmarkIcon(Icon)
  - setBorderColor
```
public void setBorderColor(java.awt.Color color)
```
    Sets the color for the "border" line.
    
    参数:
    color - The new color.
    另请参阅:
    getBorderColor()
  - setComponentOrientation
```
public void setComponentOrientation(java.awt.ComponentOrientation o)
```
    覆盖:
    
    setComponentOrientation 在类中 java.awt.Component
  - setFoldIcons
```
public void setFoldIcons(javax.swing.Icon collapsedIcon,
                javax.swing.Icon expandedIcon)
```
    Sets the icons to use to represent collapsed and expanded folds.
    
    参数:
    collapsedIcon - The collapsed fold icon. This cannot be null.
    expandedIcon - The expanded fold icon. This cannot be null.
  - setFoldIndicatorEnabled
```
public void setFoldIndicatorEnabled(boolean enabled)
```
    Toggles whether the fold indicator is enabled.
    
    参数:
    enabled - Whether the fold indicator should be enabled.
    另请参阅:
    isFoldIndicatorEnabled()
  - setFoldBackground
```
public void setFoldBackground(java.awt.Color bg)
```
    Sets the background color used by the (default) fold icons.
    
    参数:
    bg - The new background color.
    另请参阅:
    getFoldBackground()
  - setFoldIndicatorForeground
```
public void setFoldIndicatorForeground(java.awt.Color fg)
```
    Sets the foreground color used by the fold indicator.
    
    参数:
    fg - The new fold indicator foreground.
    另请参阅:
    getFoldIndicatorForeground()
  - setLineNumberColor
```
public void setLineNumberColor(java.awt.Color color)
```
    Sets the color to use to paint line numbers.
    
    参数:
    color - The color to use when painting line numbers.
    另请参阅:
    getLineNumberColor()
  - setLineNumberFont
```
public void setLineNumberFont(java.awt.Font font)
```
    Sets the font used for line numbers.
    
    参数:
    font - The font to use. This cannot be null.
    另请参阅:
    getLineNumberFont()
  - setLineNumberingStartIndex
```
public void setLineNumberingStartIndex(int index)
```
    Sets the starting line's line number. The default value is 1. Applications can call this method to change this value if they are displaying a subset of lines in a file, for example.
    
    参数:
    index - The new index.
    另请参阅:
    getLineNumberingStartIndex()
  - setShowCollapsedRegionToolTips
```
public void setShowCollapsedRegionToolTips(boolean show)
```
    Toggles whether tool tips should be displayed showing the contents of collapsed fold regions when the mouse hovers over a +/- icon.
    
    参数:
    show - Whether to show these tool tips.
    另请参阅:
    getShowCollapsedRegionToolTips()
  - toggleBookmark
```
public boolean toggleBookmark(int line)
                       throws javax.swing.text.BadLocationException
```
    Programatically toggles whether there is a bookmark for the specified line. If bookmarking is not enabled, this method does nothing.
    
    参数:
    line - The line.
    
    返回:
    Whether a bookmark is now at the specified line.
    
    抛出:
    
    javax.swing.text.BadLocationException - If line is an invalid line number in the text area.
  - setBorder
```
public void setBorder(javax.swing.border.Border border)
```
    覆盖:
    
    setBorder 在类中 javax.swing.JComponent

类 Gutter

嵌套类概要

从类继承的嵌套类/接口 javax.swing.JPanel

从类继承的嵌套类/接口 javax.swing.JComponent

从类继承的嵌套类/接口 java.awt.Container

从类继承的嵌套类/接口 java.awt.Component

字段概要

从类继承的字段 javax.swing.JComponent

从类继承的字段 java.awt.Component

从接口继承的字段 java.awt.image.ImageObserver

构造器概要

方法概要

从类继承的方法 javax.swing.JPanel

从类继承的方法 javax.swing.JComponent

从类继承的方法 java.awt.Container

从类继承的方法 java.awt.Component

从类继承的方法 java.lang.Object

字段详细资料

DEFAULT_ACTIVE_LINE_RANGE_COLOR

构造器详细资料

Gutter

方法详细资料

addLineTrackingIcon

addLineTrackingIcon

addOffsetTrackingIcon

addOffsetTrackingIcon

getActiveLineRangeColor

getBookmarkIcon

getBookmarks

getBorderColor

getFoldBackground

getFoldIndicatorForeground

getLineNumberColor

getLineNumberFont

getLineNumberingStartIndex

getLineNumbersEnabled

getShowCollapsedRegionToolTips

getTrackingIcons

isFoldIndicatorEnabled

isBookmarkingEnabled

isIconRowHeaderEnabled

removeTrackingIcon

removeAllTrackingIcons

setActiveLineRangeColor

setBookmarkIcon

setBookmarkingEnabled

setBorderColor

setComponentOrientation

setFoldIcons

setFoldIndicatorEnabled

setFoldBackground

setFoldIndicatorForeground

setLineNumberColor

setLineNumberFont

setLineNumberingStartIndex

setShowCollapsedRegionToolTips

toggleBookmark

setBorder