diff options
Diffstat (limited to 'pango/pango-attributes.c')
| -rw-r--r-- | pango/pango-attributes.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/pango/pango-attributes.c b/pango/pango-attributes.c index cb3d917d..1a4a9443 100644 --- a/pango/pango-attributes.c +++ b/pango/pango-attributes.c @@ -2496,3 +2496,257 @@ pango_attr_iterator_get_attrs (PangoAttrIterator *iterator) return attrs; } + + +/** + * pango_attribute_as_int: + * @attr: A `PangoAttribute` such as weight + * + * Returns the attribute cast to `PangoAttrInt`. + * + * This is mainly useful for language bindings. + * + * Returns: (nullable) (transfer none): The attribute as `PangoAttrInt`, + * or %NULL if it's not an integer attribute + * + * Since: 1.50 + */ +PangoAttrInt * +pango_attribute_as_int (PangoAttribute *attr) +{ + switch (attr->klass->type) + { + case PANGO_ATTR_STYLE: + case PANGO_ATTR_WEIGHT: + case PANGO_ATTR_VARIANT: + case PANGO_ATTR_STRETCH: + case PANGO_ATTR_UNDERLINE: + case PANGO_ATTR_STRIKETHROUGH: + case PANGO_ATTR_RISE: + case PANGO_ATTR_FALLBACK: + case PANGO_ATTR_LETTER_SPACING: + case PANGO_ATTR_GRAVITY: + case PANGO_ATTR_GRAVITY_HINT: + case PANGO_ATTR_FOREGROUND_ALPHA: + case PANGO_ATTR_BACKGROUND_ALPHA: + case PANGO_ATTR_ALLOW_BREAKS: + case PANGO_ATTR_SHOW: + case PANGO_ATTR_INSERT_HYPHENS: + case PANGO_ATTR_OVERLINE: + return (PangoAttrInt *)attr; + + default: + return NULL; + } +} + +/** + * pango_attribute_as_float: + * @attr: A `PangoAttribute` such as scale + * + * Returns the attribute cast to `PangoAttrFloat`. + * + * This is mainly useful for language bindings. + * + * Returns: (nullable) (transfer none): The attribute as `PangoAttrFloat`, + * or %NULL if it's not a floating point attribute + * + * Since: 1.50 + */ +PangoAttrFloat * +pango_attribute_as_float (PangoAttribute *attr) +{ + switch (attr->klass->type) + { + case PANGO_ATTR_SCALE: + return (PangoAttrFloat *)attr; + + default: + return NULL; + } +} + +/** + * pango_attribute_as_string: + * @attr: A `PangoAttribute` such as family + * + * Returns the attribute cast to `PangoAttrString`. + * + * This is mainly useful for language bindings. + * + * Returns: (nullable) (transfer none): The attribute as `PangoAttrString`, + * or %NULL if it's not a string attribute + */ +PangoAttrString * +pango_attribute_as_string (PangoAttribute *attr) +{ + switch (attr->klass->type) + { + case PANGO_ATTR_FAMILY: + return (PangoAttrString *)attr; + + default: + return NULL; + } +} + +/** + * pango_attribute_as_size: + * @attr: A `PangoAttribute` representing a size + * + * Returns the attribute cast to `PangoAttrSize`. + * + * This is mainly useful for language bindings. + * + * Returns: (nullable) (transfer none): The attribute as `PangoAttrSize`, + * or NULL if it's not a size attribute + * + * Since: 1.50 + */ +PangoAttrSize * +pango_attribute_as_size (PangoAttribute *attr) +{ + switch (attr->klass->type) + { + case PANGO_ATTR_SIZE: + case PANGO_ATTR_ABSOLUTE_SIZE: + return (PangoAttrSize *)attr; + + default: + return NULL; + } +} + +/** + * pango_attribute_as_color: + * @attr: A `PangoAttribute` such as foreground + * + * Returns the attribute cast to `PangoAttrColor`. + * + * This is mainly useful for language bindings. + * + * Returns: (nullable) (transfer none): The attribute as `PangoAttrColor`, + * or %NULL if it's not a color attribute + * + * Since: 1.50 + */ +PangoAttrColor * +pango_attribute_as_color (PangoAttribute *attr) +{ + switch (attr->klass->type) + { + case PANGO_ATTR_FOREGROUND: + case PANGO_ATTR_BACKGROUND: + case PANGO_ATTR_UNDERLINE_COLOR: + case PANGO_ATTR_STRIKETHROUGH_COLOR: + case PANGO_ATTR_OVERLINE_COLOR: + return (PangoAttrColor *)attr; + + default: + return NULL; + } +} + +/** + * pango_attribute_as_font_desc: + * @attr: A `PangoAttribute` representing a font description + * + * Returns the attribute cast to `PangoAttrFontDesc`. + * + * This is mainly useful for language bindings. + * + * Returns: (nullable) (transfer none): The attribute as `PangoAttrFontDesc`, + * or %NULL if it's not a font description attribute + * + * Since: 1.50 + */ +PangoAttrFontDesc * +pango_attribute_as_font_desc (PangoAttribute *attr) +{ + switch (attr->klass->type) + { + case PANGO_ATTR_FONT_DESC: + return (PangoAttrFontDesc *)attr; + + default: + return NULL; + } +} + +/** + * pango_attribute_as_font_features: + * @attr: A `PangoAttribute` representing font features + * + * Returns the attribute cast to `PangoAttrFontFeatures`. + * + * This is mainly useful for language bindings. + * + * Returns: (nullable) (transfer none): The attribute as `PangoAttrFontFeatures`, + * or %NULL if it's not a font features attribute + * + * Since: 1.50 + */ +PangoAttrFontFeatures * +pango_attribute_as_font_features (PangoAttribute *attr) +{ + switch (attr->klass->type) + { + case PANGO_ATTR_FONT_FEATURES: + return (PangoAttrFontFeatures *)attr; + + default: + return NULL; + } +} + +/** + * pango_attribute_as_language: + * @attr: A `PangoAttribute` representing a language + * + * Returns the attribute cast to `PangoAttrLanguage`. + * + * This is mainly useful for language bindings. + * + * Returns: (nullable) (transfer none): The attribute as `PangoAttrLanguage`, + * or %NULL if it's not a language attribute + * + * Since: 1.50 + */ +PangoAttrLanguage * +pango_attribute_as_language (PangoAttribute *attr) +{ + switch (attr->klass->type) + { + case PANGO_ATTR_LANGUAGE: + return (PangoAttrLanguage *)attr; + + default: + return NULL; + } +} + +/** + * pango_attribute_as_shape: + * @attr: A `PangoAttribute` representing a shape + * + * Returns the attribute cast to `PangoAttrShape`. + * + * This is mainly useful for language bindings. + * + * Returns: (nullable) (transfer none): The attribute as `PangoAttrShape`, + * or %NULL if it's not a shape attribute + * + * Since: 1.50 + */ +PangoAttrShape * +pango_attribute_as_shape (PangoAttribute *attr) +{ + switch (attr->klass->type) + { + case PANGO_ATTR_SHAPE: + return (PangoAttrShape *)attr; + + default: + return NULL; + } +} |