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<!-- ##### SECTION Title ##### -->
Rendering
<!-- ##### SECTION Short_Description ##### -->
Functions to run the rendering pipeline.
<!-- ##### SECTION Long_Description ##### -->
<para>
The Pango rendering pipeline takes a string of
Unicode characters and converts it into glyphs.
The functions described in this section accomplish
various steps of this process.
</para>
<!-- ##### SECTION See_Also ##### -->
<para>
</para>
<!-- ##### FUNCTION pango_itemize ##### -->
<para>
</para>
@context:
@text:
@length:
@lang_info:
@n_langs:
@Returns:
<!-- ##### STRUCT PangoContext ##### -->
<para>
The #PangoContext structure stores global information
used to control the itemization process. It contains
the following fields:
<informaltable pgwide=1 frame="none" role="struct">
<tgroup cols="2"><colspec colwidth="2*"><colspec colwidth="8*">
<tbody>
<row>
<entry>gchar *lang;</entry>
<entry>the global default language in the standard form
"fr" or "fr_FR". (This may be overriden
with the @lang_info parameter to pango_itemize().)</entry>
</row>
<row>
<entry>gchar *render_type;</entry>
<entry>a string identifier for the rendering system to use,
for instance %PANGO_RENDER_TYPE_X</entry>
</row>
</tbody></tgroup></informaltable>
</para>
@lang:
@render_type:
@direction:
<!-- ##### STRUCT PangoItem ##### -->
<para>
The #PangoItem structure stores information about
a segment of text. It contains the following fields:
<informaltable pgwide=1 frame="none" role="struct">
<tgroup cols="2"><colspec colwidth="2*"><colspec colwidth="8*">
<tbody>
<row>
<entry>gint offset;</entry>
<entry>the offset of the segment from the beginning of the
string in bytes.</entry>
</row>
<row>
<entry>gint length;</entry>
<entry>the length of the segment in bytes.</entry>
</row>
<row>
<entry>gint num_chars;</entry>
<entry>the length of the segment in characters.</entry>
</row>
<row>
<entry>gint analysis;</entry>
<entry>the properties of the segment.</entry>
</row>
</tbody></tgroup></informaltable>
</para>
@offset:
@length:
@num_chars:
@analysis:
<!-- ##### STRUCT PangoAnalysis ##### -->
<para>
The #PangoAnalysis structure stores information about
the properties of a segment of text. It has the following
fields:
<informaltable pgwide=1 frame="none" role="struct">
<tgroup cols="2"><colspec colwidth="2*"><colspec colwidth="8*">
<tbody>
<row>
<entry>#PangoEngineShape *shape_engine;</entry>
<entry>the engine for doing rendering-system-dependent processing</entry>
</row>
<row>
<entry>#PangoEngineLang *lang_engine;</entry>
<entry>the engine for doing rendering-system-independent processing</entry>
</row>
<row>
<entry>guint8 level;</entry>
<entry>the bidrectional level for this segment.</entry>
</row>
</tbody></tgroup></informaltable>
</para>
@shape_engine:
@lang_engine:
@level:
<!-- ##### STRUCT PangoLangRange ##### -->
<para>
The #PangoLangRange structure stores language tagging
information for a range of character positions of text.
It contains the following fields:
<informaltable pgwide=1 frame="none" role="struct">
<tgroup cols="2"><colspec colwidth="2*"><colspec colwidth="8*">
<tbody>
<row>
<entry>gint start;</entry>
<entry>the start position of this tagged range in bytes.</entry>
</row>
<row>
<entry>gint length;</entry>
<entry>the length of this tagged range in bytes.</entry>
</row>
<row>
<entry>gchar *lang;</entry>
<entry>the language for this range, in the standard form
"fr" or "fr_FR".</entry>
</row>
</tbody></tgroup></informaltable>
</para>
@start:
@length:
@lang:
<!-- ##### ENUM PangoDirection ##### -->
<para>
</para>
@PANGO_DIRECTION_LTR:
@PANGO_DIRECTION_RTL:
@PANGO_DIRECTION_TTB:
<!-- ##### FUNCTION pango_reorder_items ##### -->
<para>
</para>
@logical_items:
@Returns:
<!-- ##### FUNCTION pango_break ##### -->
<para>
</para>
@text:
@length:
@analysis:
@attrs:
<!-- ##### STRUCT PangoLogAttr ##### -->
<para>
The #PangoLogAttr structure stores information
about the attributes of a single character.
</para>
@is_break:
@is_white:
@is_char_stop:
@is_word_stop:
<!-- ##### FUNCTION pango_shape ##### -->
<para>
</para>
@font:
@text:
@length:
@analysis:
@glyphs:
<!-- ##### FUNCTION pango_justify ##### -->
<para>
</para>
@glyphs:
@new_line_width:
@min_kashida_width:
<!-- ##### FUNCTION pango_cp_to_x ##### -->
<para>
</para>
@text:
@length:
@analysis:
@glyphs:
@char_pos:
@trailing:
@x_pos:
<!-- ##### FUNCTION pango_x_to_cp ##### -->
<para>
</para>
@text:
@length:
@analysis:
@glyphs:
@x_pos:
@char_pos:
@trailing:
|
