XSL-FO leader 对象

定义和用法

<fo:leader> 对象的作用如下：

生成 "." 符号来分隔内容表格中页面数字的标题
创建表单中的输入字段
创建水平规则

如果前导字符长度太长，与整个区域明显不适应，那么它将会另起一行。

只用在 leader-pattern 属性设置为 "use-content" 的情况下，<fo:leader> 对象的子类才不会被忽略；如果 <fo:leader> 不包含子类，并且 leader-pattern 属性设置为 "use-content"，那么前导字符会被填充为空白。

如果前导字符需要在一行中填充所有的空格，那么前导字符的最大长度至少与列的宽度相同。

语法

 <fo:leader>
 <!--
 Contents:(#PCDATA|bidi-override|character|
 external-graphic|instream-foreign-object|
 inline|page-number|page-number-citation|
 basic-link|multi-toggle)*
 -->
 </fo:leader>

属性

属性 [A-K]	属性 [L-Z]
azimuth	leader-alignment
alignment-adjust	leader-length
alignment-baseline	leader-pattern
background-attachment	leader-pattern-width
background-color	left
background-image	letter-spacing
background-repeat	line-height
background-position-horizontal	margin-bottom
background-position-vertical	margin-left
baseline-shift	margin-right
border-after-color	margin-top
border-after-style	padding-after
border-after-width	padding-before
border-before-color	padding-bottom
border-before-style	padding-end
border-before-width	padding-left
border-bottom-color	padding-right
border-bottom-style	padding-start
border-bottom-width	padding-top
border-end-color	pause-after
border-end-style	pause-before
border-end-width	pitch
border-left-color	pitch-range
border-left-style	play-during
border-left-width	relative-position
border-right-color	richness
border-right-style	right
border-right-width	role
border-start-color	rule-style
border-start-style	rule-thickness
border-start-width	source-document
border-top-color	space-end
border-top-style	space-start
border-top-width	speak
bottom	speak-header
color	speak-numeral
cue-after	speak-punctuation
cue-before	speech-rate
dominant-baseline	stress
elevation	text-altitude
font-family	text-depth
font-selection-strategy	text-shadow
font-size	top
font-size-adjust	visibility
font-stretch	voice-family
font-style	volume
font-variant	word-spacing
font-weight
id
keep-with-next
keep-with-previous