| AttrIterator | The AttrIterator structure is used to represent an
iterator through a AttrList. A new iterator is created
with AttrList::get_iterator. Once the iterator
is created, it can be advanced through the style changes
in the text using AttrIterator::next. At each
style change, the range of the current style segment and the
attributes currently in effect can be queried.
|
| AttrList | The AttrList structure represents a list of attributes
that apply to a section of text. The attributes are, in general,
allowed to overlap in an arbitrary fashion, however, if the
attributes are manipulated only through AttrList::change,
the overlap between properties will meet stricter criteria.
|
| Attribute | The Attribute structure represents the common portions of all
attributes. Particular types of attributes include this structure
as their initial portion. The common portion of the attribute holds
the range to which the value in the type-specific part of the attribute
applies and should be initialized using Attribute::init.
By default an attribute will have an all-inclusive range of [0,G_MAXUINT].
|
| Color | The Color structure is used to
represent a color in an uncalibrated RGB color-space.
|
| Context | The Context structure stores global information
used to control the itemization process.
|
| ContextClass | |
| Coverage | The Coverage structure represents a map from Unicode characters
to CoverageLevel. It is an opaque structure with no public fields.
|
| CoverageClass | |
| EngineLang | [Deprecated since 1.38] The EngineLang class is implemented by engines that
customize the rendering-system independent part of the
Pango pipeline for a particular script or language. For
instance, a custom EngineLang could be provided for
Thai to implement the dictionary-based word boundary
lookups needed for that language.
|
| EngineLangClass | |
| EngineShape | [Deprecated since 1.38] The EngineShape class is implemented by engines that
customize the rendering-system dependent part of the
Pango pipeline for a particular script or language.
A EngineShape implementation is then specific to both
a particular rendering system or group of rendering systems
and to a particular script. For instance, there is one
EngineShape implementation to handle shaping Arabic
for Fontconfig-based backends.
|
| EngineShapeClass | |
| Font | The Font structure is used to represent
a font in a rendering-system-independent matter.
To create an implementation of a Font,
the rendering-system specific code should allocate
a larger structure that contains a nested
Font, fill in the <structfield>klass</structfield> member of
the nested Font with a pointer to
a appropriate FontClass, then call
pango_font_init on the structure.
|
| FontClass | |
| FontDescription | The FontDescription structure represents the description
of an ideal font. These structures are used both to list
what fonts are available on the system and also for specifying
the characteristics of a font to load.
|
| FontFace | The FontFace structure is used to represent a group of fonts with
the same family, slant, weight, width, but varying sizes.
|
| FontFaceClass | |
| FontFamily | The FontFamily structure is used to represent a family of related
font faces. The faces in a family share a common design, but differ in
slant, weight, width and other aspects.
|
| FontFamilyClass | |
| FontMap | The FontMap represents the set of fonts available for a
particular rendering system. This is a virtual object with
implementations being specific to particular rendering systems. To
create an implementation of a FontMap, the rendering-system
specific code should allocate a larger structure that contains a nested
FontMap, fill in the <structfield>klass</structfield> member of the nested FontMap with a
pointer to a appropriate FontMapClass, then call
pango_font_map_init on the structure.
|
| FontMapClass | |
| FontMask | The bits in a FontMask correspond to fields in a
FontDescription that have been set.
|
| FontMetrics | A FontMetrics structure holds the overall metric information
for a font (possibly restricted to a script). The fields of this
structure are private to implementations of a font backend. See
the documentation of the corresponding getters for documentation
of their meaning.
|
| Fontset | A Fontset represents a set of Font to use
when rendering text. It is the result of resolving a
FontDescription against a particular Context.
It has operations for finding the component font for
a particular Unicode character, and for finding a composite
set of metrics for the entire fontset.
|
| FontsetClass | |
| FontsetSimple | FontsetSimple is a implementation of the abstract
Fontset base class in terms of an array of fonts,
which the creator provides when constructing the
FontsetSimple.
|
| FontsetSimpleClass | |
| GlyphItem | A GlyphItem is a pair of a Item and the glyphs
resulting from shaping the text corresponding to an item.
As an example of the usage of GlyphItem, the results
of shaping text with Layout is a list of LayoutLine,
each of which contains a list of GlyphItem.
|
| GlyphItemIter | A GlyphItemIter is an iterator over the clusters in a
GlyphItem. The <firstterm>forward direction</firstterm> of the
iterator is the logical direction of text. That is, with increasing
start_index and start_char values. If glyph_item is right-to-left
(that is, if <literal>``glyph_item->item->analysis.level</literal> is odd),
then start_glyph decreases as the iterator moves forward. Moreover,
in right-to-left cases, start_glyph is greater than end_glyph.
|
| GlyphString | The GlyphString structure is used to store strings
of glyphs with geometry and visual attribute information.
The storage for the glyph information is owned
by the structure which simplifies memory management.
|
| Item | The Item structure stores information about a segment of text.
|
| Layout | The Layout structure represents an entire paragraph
of text. It is initialized with a Context, UTF-8 string
and set of attributes for that string. Once that is done, the
set of formatted lines can be extracted from the object,
the layout can be rendered, and conversion between logical
character positions within the layout's text, and the physical
position of the resulting glyphs can be made.
|
| LayoutClass | |
| LayoutIter | A LayoutIter structure can be used to
iterate over the visual extents of a Layout.
|
| LayoutLine | The LayoutLine structure represents one of the lines resulting
from laying out a paragraph via Layout. LayoutLine
structures are obtained by calling Layout::get_line and
are only valid until the text, attributes, or settings of the
parent Layout are modified.
|
| Matrix | A structure specifying a transformation between user-space
coordinates and device coordinates. The transformation
is given by
|
| Renderer | Renderer is a base class for objects that are used to
render Pango objects such as GlyphString and
Layout.
|
| RendererClass | |
| TabArray | A TabArray struct contains an array
of tab stops. Each tab stop has an alignment and a position.
|
| Alignment | A Alignment describes how to align the lines of a Layout within the
available space. If the Layout is set to justify
using Layout::set_justify, this only has effect for partial lines.
|
| AttrType | The AttrType
distinguishes between different types of attributes. Along with the
predefined values, it is possible to allocate additional values
for custom attributes using AttrType::register. The predefined
values are given below. The type of structure used to store the
attribute is listed in parentheses after the description.
|
| BidiType | The BidiType type represents the bidirectional character
type of a Unicode character as specified by the
Unicode bidirectional algorithm</ulink>.
|
| CoverageLevel | Used to indicate how well a font can represent a particular Unicode
character point for a particular script.
|
| Direction | The Direction type represents a direction in the
Unicode bidirectional algorithm; not every value in this
enumeration makes sense for every usage of Direction;
for example, the return value of pango_unichar_direction
and pango_find_base_dir cannot be Direction::WeakLtr
or Direction::WeakRtl, since every character is either
neutral or has a strong direction; on the other hand
Direction::Neutral doesn't make sense to pass
to pango_itemize_with_base_dir.
|
| EllipsizeMode | The EllipsizeMode type describes what sort of (if any)
ellipsization should be applied to a line of text. In
the ellipsization process characters are removed from the
text in order to make it fit to a given width and replaced
with an ellipsis.
|
| Gravity | The Gravity type represents the orientation of glyphs in a segment
of text. This is useful when rendering vertical text layouts. In
those situations, the layout is rotated using a non-identity PangoMatrix,
and then glyph orientation is controlled using Gravity.
Not every value in this enumeration makes sense for every usage of
Gravity; for example, Gravity::Auto only can be passed to
Context::set_base_gravity and can only be returned by
Context::get_base_gravity.
|
| GravityHint | The GravityHint defines how horizontal scripts should behave in a
vertical context. That is, English excerpt in a vertical paragraph for
example.
|
| RenderPart | RenderPart defines different items to render for such
purposes as setting colors.
|
| Script | The Script enumeration identifies different writing
systems. The values correspond to the names as defined in the
Unicode standard. See Unicode Standard Annex
24: Script names</ulink>.
|
| Stretch | An enumeration specifying the width of the font relative to other designs
within a family.
|
| Style | An enumeration specifying the various slant styles possible for a font.
|
| TabAlign | A TabAlign specifies where a tab stop appears relative to the text.
|
| Underline | The Underline enumeration is used to specify
whether text should be underlined, and if so, the type
of underlining.
|
| Variant | An enumeration specifying capitalization variant of the font.
|
| Weight | An enumeration specifying the weight (boldness) of a font. This is a numerical
value ranging from 100 to 1000, but there are some predefined values:
|
| WrapMode | A WrapMode describes how to wrap the lines of a Layout to the desired width.
|