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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>
<!-- ##### 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>
<!-- ##### 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:
@font:
@level:
@language:
@extra_attrs:
<!-- ##### ENUM PangoDirection ##### -->
<para>
The #PangoDirection type represents the direction of writing
for text.
</para>
@PANGO_DIRECTION_LTR: The text is written left-to-right
@PANGO_DIRECTION_RTL: The text is written right-to-left
@PANGO_DIRECTION_TTB_LTR: The text is written vertically
top-to-bottom, with the rows ordered from
left to right.
@PANGO_DIRECTION_TTB_RTL: The text is written vertically
top-to-bottom, with the rows ordered from
right to left.
<!-- ##### MACRO PANGO_TYPE_DIRECTION ##### -->
<para>
The GObject type for #PangoDirection.
</para>
<!-- ##### FUNCTION pango_itemize ##### -->
<para>
</para>
@context:
@text:
@start_index:
@length:
@attrs:
@cached_iter:
@Returns:
<!-- ##### FUNCTION pango_item_free ##### -->
<para>
</para>
@item:
<!-- ##### FUNCTION pango_item_copy ##### -->
<para>
</para>
@item:
@Returns:
<!-- ##### FUNCTION pango_item_new ##### -->
<para>
</para>
@Returns:
<!-- ##### FUNCTION pango_item_split ##### -->
<para>
</para>
@orig:
@split_index:
@split_offset:
@Returns:
<!-- ##### FUNCTION pango_reorder_items ##### -->
<para>
</para>
@logical_items:
@Returns:
<!-- ##### FUNCTION pango_context_new ##### -->
<para>
</para>
@Returns:
<!-- ##### FUNCTION pango_context_get_font_description ##### -->
<para>
</para>
@context:
@Returns:
<!-- ##### FUNCTION pango_context_set_font_description ##### -->
<para>
</para>
@context:
@desc:
<!-- ##### FUNCTION pango_context_get_language ##### -->
<para>
</para>
@context:
@Returns:
<!-- ##### FUNCTION pango_context_set_language ##### -->
<para>
</para>
@context:
@language:
<!-- ##### FUNCTION pango_context_get_base_dir ##### -->
<para>
</para>
@context:
@Returns:
<!-- ##### FUNCTION pango_context_set_base_dir ##### -->
<para>
</para>
@context:
@direction:
<!-- ##### FUNCTION pango_context_load_font ##### -->
<para>
</para>
@context:
@desc:
@Returns:
<!-- ##### FUNCTION pango_context_get_metrics ##### -->
<para>
</para>
@context:
@desc:
@language:
@Returns:
<!-- ##### FUNCTION pango_context_list_families ##### -->
<para>
</para>
@context:
@families:
@n_families:
<!-- ##### FUNCTION pango_break ##### -->
<para>
</para>
@text:
@length:
@analysis:
@attrs:
@attrs_len:
<!-- ##### FUNCTION pango_get_log_attrs ##### -->
<para>
</para>
@text:
@length:
@level:
@language:
@log_attrs:
@attrs_len:
<!-- ##### FUNCTION pango_find_paragraph_boundary ##### -->
<para>
</para>
@text:
@length:
@paragraph_delimiter_index:
@next_paragraph_start:
<!-- ##### FUNCTION pango_default_break ##### -->
<para>
</para>
@text:
@length:
@analysis:
@attrs:
@attrs_len:
<!-- ##### STRUCT PangoLogAttr ##### -->
<para>
The #PangoLogAttr structure stores information
about the attributes of a single character.
</para>
@is_line_break:
@is_mandatory_break:
@is_char_break:
@is_white:
@is_cursor_position:
@is_word_start:
@is_word_end:
@is_sentence_boundary:
@is_sentence_start:
@is_sentence_end:
<!-- ##### FUNCTION pango_shape ##### -->
<para>
</para>
@text:
@length:
@analysis:
@glyphs:
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