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Diffstat (limited to 'docs/tmpl/vertical.sgml')
| -rw-r--r-- | docs/tmpl/vertical.sgml | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/docs/tmpl/vertical.sgml b/docs/tmpl/vertical.sgml index de80afd3..5df8f4df 100644 --- a/docs/tmpl/vertical.sgml +++ b/docs/tmpl/vertical.sgml @@ -9,7 +9,8 @@ Laying text out in vertical directions Since 1.16, Pango is able to correctly lay vertical text out. In fact, it can set layouts of mixed vertical and non-vertical text. This section describes the types used for setting vertical text parameters. - +</para> +<para> The way this is implemented is through the concept of <firstterm>gravity</firstterm>. Gravity of normal Latin text is south. A gravity value of east means that glyphs will be rotated ninety degrees @@ -18,7 +19,8 @@ and rotate the layout using the matrix machinery already in place. This has the huge advantage that most algorithms working on a #PangoLayout do not need any change as the assumption that lines run in the X direction and stack in the Y direction holds even for vertical text layouts. - +</para> +<para> Applications should only need to set base gravity on #PangoContext in use, and let Pango decide the gravity assigned to each run of text. This automatically handles text with mixed scripts. A very common use is to set the context base |