对齐fo:浮动顶部刷新与包装文本的上升线

Question

是否有一种技术/方法来对齐边浮动顶部与其周围流动的文本的上升线？

下面是我的示例代码：

<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
  <fo:layout-master-set>
    <fo:simple-page-master master-name="pages">
      <fo:region-body margin-left="1in" margin-right="1in" margin-top="1in" margin-bottom="1in" />
    </fo:simple-page-master>
  </fo:layout-master-set>
  <fo:page-sequence master-reference="pages">
    <fo:flow flow-name="xsl-region-body">
      <fo:wrapper line-stacking-strategy="font-height" line-height.conditionality="discard" line-height="1.8" font-size="24pt">
    
      <fo:block space-after="2lh">
        <fo:float float="start">
          <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
            <fo:block>FLOAT-1</fo:block>
          </fo:block-container>
        </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
    
        <fo:block space-after="2lh">
          <fo:float float="start">
            <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
              <fo:block>FLOAT-2</fo:block>
            </fo:block-container>
        </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
    
      </fo:wrapper>
    </fo:flow>
  </fo:page-sequence>
</fo:root>

我想我理解为什么这是:对于浮-1，包装的line-height.conditionality="discard" fo:block开始在参考区域的顶部，并删除上半领先部分。这是为了使我的文档中的任何元素都从相同的垂直位置开始，无论是表格、图像还是段落。但是，当我们不在参考区域的上边缘时，半前导的上半部分不会被丢弃，并且fo:float与行框的前边缘(而不是标称请求行矩形的前边缘)对齐。

是否有一种编程的通用技术，使浮动锚定在段落的开头与段落字体的上升线对齐，而不是它的第一行框？

我希望在整个文档中的任何潜在位置中，浮动-2与浮动-1的视觉对齐方式相同。通常，在我的情况下，将每个段落也包装在外部fo:block-container中可能不是一种选择，因为在许多其他地方可能会产生间隔/布局的副作用，我担心…。

我正在尝试使用Antennahouse的FO格式化程序7.2。

Answer 1

如果浮点数是图形，则可以使用fo:initial-property-set.

• You扩展(参见https://www.antenna.co.jp/AHF/help/en/ahf-ext.html#axf.initial-letters)来定位和调整图形的大小。在浮点数中，可以在fo:block-container上指定space-before。

• 我不确定为什么不总是应用line-height.conditionality="discard"，但是您可以用一个fo:block.

• You设置axf:baseline-grid="new"对每个fo:block-container (尽管您已经折现了该选项)H 220在每个fo:block.

• You上放置d18(尽管您已经折现了该选项)H 220F 221>

​

​

<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format"
     xmlns:axf="http://www.antennahouse.com/names/XSL/Extensions"
     line-height="1.8" font-size="24pt"
     line-stacking-strategy="font-height">
  <fo:layout-master-set>
    <fo:simple-page-master master-name="pages">
      <fo:region-body margin-left="1in" margin-right="1in" margin-top="1in" margin-bottom="1in" />
    </fo:simple-page-master>
  </fo:layout-master-set>
  <fo:page-sequence master-reference="pages">
    <fo:flow flow-name="xsl-region-body" axf:baseline-grid="new">
      <fo:block space-after="2lh" axf:initial-letters="2">
      <fo:external-graphic src="logo-antenna-200x200.png"/>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
      <fo:block space-after="2lh" axf:initial-letters="2">
      <fo:external-graphic src="logo-antenna-200x200.png"/>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
    </fo:flow>
  </fo:page-sequence>
  <fo:page-sequence master-reference="pages">
    <fo:flow flow-name="xsl-region-body" line-height.conditionality="discard">
    <fo:block space-after="2lh">
          <fo:float float="start">
            <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
              <fo:block>FLOAT-1</fo:block>
            </fo:block-container>
        </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
        <fo:block space-after="2lh">
          <fo:float float="start">
            <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black" space-before="(1lh - 1em) div 2" space-before.conditionality="retain">
              <fo:block>FLOAT-2</fo:block>
            </fo:block-container>
        </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
    </fo:flow>
  </fo:page-sequence>
  <fo:page-sequence master-reference="pages">
    <fo:flow flow-name="xsl-region-body" line-height.conditionality="discard">
      <fo:block space-after="2lh"><fo:initial-property-set line-height.conditionality="discard" />
      <fo:float float="start">
        <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
          <fo:block>FLOAT-1</fo:block>
        </fo:block-container>
      </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
      <fo:block space-after="2lh"><fo:initial-property-set line-height.conditionality="discard" />
      <fo:float float="start">
        <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
          <fo:block>FLOAT-2</fo:block>
        </fo:block-container>
      </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
    </fo:flow>
  </fo:page-sequence>
  <fo:page-sequence master-reference="pages">
    <fo:flow flow-name="xsl-region-body">
      <fo:block space-after="2lh" axf:baseline-grid="new">
      <fo:float float="start">
        <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
          <fo:block>FLOAT-1</fo:block>
        </fo:block-container>
      </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
      <fo:block space-after="2lh" axf:baseline-grid="new">
      <fo:float float="start">
        <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
          <fo:block>FLOAT-2</fo:block>
        </fo:block-container>
      </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
    </fo:flow>
  </fo:page-sequence>
  <fo:page-sequence master-reference="pages">
    <fo:flow flow-name="xsl-region-body" line-height.conditionality="discard">
      <fo:block space-after="2lh">
        <fo:float float="start">
          <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
            <fo:block>FLOAT-1</fo:block>
          </fo:block-container>
      </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
      <fo:block-container space-after="2lh">
    <fo:block>
          <fo:float float="start">
            <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
              <fo:block>FLOAT-2</fo:block>
            </fo:block-container>
        </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
      </fo:block-container>
    </fo:flow>
  </fo:page-sequence>
</fo:root>

使用text-altitude的另一种选择

  <fo:page-sequence master-reference="pages">
    <fo:flow flow-name="xsl-region-body">
    <fo:block space-after="2lh" text-altitude="0">
          <fo:float float="start">
            <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
              <fo:block line-height.conditionality="discard">FLOAT-1</fo:block>
            </fo:block-container>
        </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
        <fo:block space-after="2lh" text-altitude="0">
          <fo:float float="start">
            <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
              <fo:block line-height.conditionality="discard">FLOAT-2</fo:block>
            </fo:block-container>
        </fo:float>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
    </fo:flow>
  </fo:page-sequence>

<fo:inline line-height.conditionality="discard">围绕着fo:float

  <fo:page-sequence master-reference="pages">
    <fo:flow flow-name="xsl-region-body">
    <fo:block line-height.conditionality="discard" space-after="2lh">
          <fo:inline line-height.conditionality="discard"><fo:float float="start">
            <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
              <fo:block>FLOAT-1</fo:block>
            </fo:block-container>
        </fo:float></fo:inline>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
        <fo:block line-height.conditionality="discard" space-after="2lh">
          <fo:inline line-height.conditionality="discard"><fo:float float="start">
            <fo:block-container inline-progression-dimension="20%" background-color="yellow" border="1px solid black">
              <fo:block>FLOAT-2</fo:block>
            </fo:block-container>
        </fo:float></fo:inline>Torem dolor amet adipisicing sed eiusmod incididunt labore dolore aliqua enim minim quis exercitation laboris ut ex commodo Duis irure in in velit cillum eu nulla Excepteur occaecat non sunt.</fo:block>
    </fo:flow>
  </fo:page-sequence>

fo:inline与占主导地位的字母基线对齐，fo:float与fo:inline顶部对齐。我不清楚为什么line-height.conditionality="discard"应该在fo:inline上工作，但它确实工作。