diff options
| -rw-r--r-- | pango/pango-attributes.c | 1037 |
1 files changed, 531 insertions, 506 deletions
diff --git a/pango/pango-attributes.c b/pango/pango-attributes.c index 4a141792..5690aeaa 100644 --- a/pango/pango-attributes.c +++ b/pango/pango-attributes.c @@ -26,19 +26,8 @@ #include "pango-attributes-private.h" #include "pango-impl-utils.h" -static PangoAttribute *pango_attr_color_new (const PangoAttrClass *klass, - guint16 red, - guint16 green, - guint16 blue); -static PangoAttribute *pango_attr_string_new (const PangoAttrClass *klass, - const char *str); -static PangoAttribute *pango_attr_int_new (const PangoAttrClass *klass, - int value); -static PangoAttribute *pango_attr_float_new (const PangoAttrClass *klass, - double value); -static PangoAttribute *pango_attr_size_new_internal (int size, - gboolean absolute); +/* {{{ Generic attribute code */ G_LOCK_DEFINE_STATIC (attr_type); static GHashTable *name_map = NULL; /* MT-safe */ @@ -204,6 +193,12 @@ pango_attribute_equal (const PangoAttribute *attr1, return attr1->klass->equal (attr1, attr2); } +/* }}} */ +/* {{{ Attribute types */ +/* {{{ String attribute */ +static PangoAttribute *pango_attr_string_new (const PangoAttrClass *klass, + const char *str); + static PangoAttribute * pango_attr_string_copy (const PangoAttribute *attr) { @@ -236,32 +231,8 @@ pango_attr_string_new (const PangoAttrClass *klass, return (PangoAttribute *)result; } - -/** - * pango_attr_family_new: - * @family: the family or comma-separated list of families - * - * Create a new font family attribute. - * - * Return value: (transfer full): the newly allocated - * `PangoAttribute`, which should be freed with - * [method@Pango.Attribute.destroy] - */ -PangoAttribute * -pango_attr_family_new (const char *family) -{ - static const PangoAttrClass klass = { - PANGO_ATTR_FAMILY, - pango_attr_string_copy, - pango_attr_string_destroy, - pango_attr_string_equal - }; - - g_return_val_if_fail (family != NULL, NULL); - - return pango_attr_string_new (&klass, family); -} - + /* }}} */ +/* {{{ Language attribute */ static PangoAttribute * pango_attr_language_copy (const PangoAttribute *attr) { @@ -282,35 +253,12 @@ pango_attr_language_equal (const PangoAttribute *attr1, { return ((PangoAttrLanguage *)attr1)->value == ((PangoAttrLanguage *)attr2)->value; } - -/** - * pango_attr_language_new: - * @language: language tag - * - * Create a new language tag attribute. - * - * Return value: (transfer full): the newly allocated - * `PangoAttribute`, which should be freed with - * [method@Pango.Attribute.destroy] - */ -PangoAttribute * -pango_attr_language_new (PangoLanguage *language) -{ - PangoAttrLanguage *result; - - static const PangoAttrClass klass = { - PANGO_ATTR_LANGUAGE, - pango_attr_language_copy, - pango_attr_language_destroy, - pango_attr_language_equal - }; - - result = g_slice_new (PangoAttrLanguage); - pango_attribute_init (&result->attr, &klass); - result->value = language; - - return (PangoAttribute *)result; -} +/* }}}} */ +/* {{{ Color attribute */ +static PangoAttribute *pango_attr_color_new (const PangoAttrClass *klass, + guint16 red, + guint16 green, + guint16 blue); static PangoAttribute * pango_attr_color_copy (const PangoAttribute *attr) @@ -357,60 +305,10 @@ pango_attr_color_new (const PangoAttrClass *klass, return (PangoAttribute *)result; } - -/** - * pango_attr_foreground_new: - * @red: the red value (ranging from 0 to 65535) - * @green: the green value - * @blue: the blue value - * - * Create a new foreground color attribute. - * - * Return value: (transfer full): the newly allocated - * `PangoAttribute`, which should be freed with - * [method@Pango.Attribute.destroy] - */ -PangoAttribute * -pango_attr_foreground_new (guint16 red, - guint16 green, - guint16 blue) -{ - static const PangoAttrClass klass = { - PANGO_ATTR_FOREGROUND, - pango_attr_color_copy, - pango_attr_color_destroy, - pango_attr_color_equal - }; - - return pango_attr_color_new (&klass, red, green, blue); -} - -/** - * pango_attr_background_new: - * @red: the red value (ranging from 0 to 65535) - * @green: the green value - * @blue: the blue value - * - * Create a new background color attribute. - * - * Return value: (transfer full): the newly allocated - * `PangoAttribute`, which should be freed with - * [method@Pango.Attribute.destroy] - */ -PangoAttribute * -pango_attr_background_new (guint16 red, - guint16 green, - guint16 blue) -{ - static const PangoAttrClass klass = { - PANGO_ATTR_BACKGROUND, - pango_attr_color_copy, - pango_attr_color_destroy, - pango_attr_color_equal - }; - - return pango_attr_color_new (&klass, red, green, blue); -} +/* }}}} */ +/* {{{ Integer attribute */ +static PangoAttribute *pango_attr_int_new (const PangoAttrClass *klass, + int value); static PangoAttribute * pango_attr_int_copy (const PangoAttribute *attr) @@ -448,6 +346,10 @@ pango_attr_int_new (const PangoAttrClass *klass, return (PangoAttribute *)result; } +/* }}} */ +/* {{{ Float attribute */ +static PangoAttribute *pango_attr_float_new (const PangoAttrClass *klass, + double value); static PangoAttribute * pango_attr_float_copy (const PangoAttribute *attr) @@ -475,7 +377,7 @@ pango_attr_float_equal (const PangoAttribute *attr1, return (float_attr1->value == float_attr2->value); } -static PangoAttribute* +static PangoAttribute * pango_attr_float_new (const PangoAttrClass *klass, double value) { @@ -485,6 +387,10 @@ pango_attr_float_new (const PangoAttrClass *klass, return (PangoAttribute *)result; } +/* }}} */ +/* {{{ Size attribute */ +static PangoAttribute *pango_attr_size_new_internal (int size, + gboolean absolute); static PangoAttribute * pango_attr_size_copy (const PangoAttribute *attr) @@ -541,6 +447,192 @@ pango_attr_size_new_internal (int size, return (PangoAttribute *)result; } +/* }}} */ +/* {{{ Font description attribute */ +static PangoAttribute * +pango_attr_font_desc_copy (const PangoAttribute *attr) +{ + const PangoAttrFontDesc *desc_attr = (const PangoAttrFontDesc *)attr; + + return pango_attr_font_desc_new (desc_attr->desc); +} + +static void +pango_attr_font_desc_destroy (PangoAttribute *attr) +{ + PangoAttrFontDesc *desc_attr = (PangoAttrFontDesc *)attr; + + pango_font_description_free (desc_attr->desc); + g_slice_free (PangoAttrFontDesc, desc_attr); +} + +static gboolean +pango_attr_font_desc_equal (const PangoAttribute *attr1, + const PangoAttribute *attr2) +{ + const PangoAttrFontDesc *desc_attr1 = (const PangoAttrFontDesc *)attr1; + const PangoAttrFontDesc *desc_attr2 = (const PangoAttrFontDesc *)attr2; + + return pango_font_description_get_set_fields (desc_attr1->desc) == + pango_font_description_get_set_fields (desc_attr2->desc) && + pango_font_description_equal (desc_attr1->desc, desc_attr2->desc); +} +/* }}} */ +/* {{{ Shape attribute */ +static PangoAttribute * +pango_attr_shape_copy (const PangoAttribute *attr) +{ + const PangoAttrShape *shape_attr = (PangoAttrShape *)attr; + gpointer data; + + if (shape_attr->copy_func) + data = shape_attr->copy_func (shape_attr->data); + else + data = shape_attr->data; + + return pango_attr_shape_new_with_data (&shape_attr->ink_rect, &shape_attr->logical_rect, + data, shape_attr->copy_func, shape_attr->destroy_func); +} + +static void +pango_attr_shape_destroy (PangoAttribute *attr) +{ + PangoAttrShape *shape_attr = (PangoAttrShape *)attr; + + if (shape_attr->destroy_func) + shape_attr->destroy_func (shape_attr->data); + + g_slice_free (PangoAttrShape, shape_attr); +} + +static gboolean +pango_attr_shape_equal (const PangoAttribute *attr1, + const PangoAttribute *attr2) +{ + const PangoAttrShape *shape_attr1 = (const PangoAttrShape *)attr1; + const PangoAttrShape *shape_attr2 = (const PangoAttrShape *)attr2; + + return (shape_attr1->logical_rect.x == shape_attr2->logical_rect.x && + shape_attr1->logical_rect.y == shape_attr2->logical_rect.y && + shape_attr1->logical_rect.width == shape_attr2->logical_rect.width && + shape_attr1->logical_rect.height == shape_attr2->logical_rect.height && + shape_attr1->ink_rect.x == shape_attr2->ink_rect.x && + shape_attr1->ink_rect.y == shape_attr2->ink_rect.y && + shape_attr1->ink_rect.width == shape_attr2->ink_rect.width && + shape_attr1->ink_rect.height == shape_attr2->ink_rect.height && + shape_attr1->data == shape_attr2->data); +} +/* }}} */ +/* }}} */ +/* {{{ Public API */ + +/** + * pango_attr_family_new: + * @family: the family or comma-separated list of families + * + * Create a new font family attribute. + * + * Return value: (transfer full): the newly allocated + * `PangoAttribute`, which should be freed with + * [method@Pango.Attribute.destroy] + */ +PangoAttribute * +pango_attr_family_new (const char *family) +{ + static const PangoAttrClass klass = { + PANGO_ATTR_FAMILY, + pango_attr_string_copy, + pango_attr_string_destroy, + pango_attr_string_equal + }; + + g_return_val_if_fail (family != NULL, NULL); + + return pango_attr_string_new (&klass, family); +} + +/** + * pango_attr_language_new: + * @language: language tag + * + * Create a new language tag attribute. + * + * Return value: (transfer full): the newly allocated + * `PangoAttribute`, which should be freed with + * [method@Pango.Attribute.destroy] + */ +PangoAttribute * +pango_attr_language_new (PangoLanguage *language) +{ + PangoAttrLanguage *result; + + static const PangoAttrClass klass = { + PANGO_ATTR_LANGUAGE, + pango_attr_language_copy, + pango_attr_language_destroy, + pango_attr_language_equal + }; + + result = g_slice_new (PangoAttrLanguage); + pango_attribute_init (&result->attr, &klass); + result->value = language; + + return (PangoAttribute *)result; +} + +/** + * pango_attr_foreground_new: + * @red: the red value (ranging from 0 to 65535) + * @green: the green value + * @blue: the blue value + * + * Create a new foreground color attribute. + * + * Return value: (transfer full): the newly allocated + * `PangoAttribute`, which should be freed with + * [method@Pango.Attribute.destroy] + */ +PangoAttribute * +pango_attr_foreground_new (guint16 red, + guint16 green, + guint16 blue) +{ + static const PangoAttrClass klass = { + PANGO_ATTR_FOREGROUND, + pango_attr_color_copy, + pango_attr_color_destroy, + pango_attr_color_equal + }; + + return pango_attr_color_new (&klass, red, green, blue); +} + +/** + * pango_attr_background_new: + * @red: the red value (ranging from 0 to 65535) + * @green: the green value + * @blue: the blue value + * + * Create a new background color attribute. + * + * Return value: (transfer full): the newly allocated + * `PangoAttribute`, which should be freed with + * [method@Pango.Attribute.destroy] + */ +PangoAttribute * +pango_attr_background_new (guint16 red, + guint16 green, + guint16 blue) +{ + static const PangoAttrClass klass = { + PANGO_ATTR_BACKGROUND, + pango_attr_color_copy, + pango_attr_color_destroy, + pango_attr_color_equal + }; + + return pango_attr_color_new (&klass, red, green, blue); +} /** * pango_attr_size_new: @@ -667,35 +759,6 @@ pango_attr_stretch_new (PangoStretch stretch) return pango_attr_int_new (&klass, (int)stretch); } -static PangoAttribute * -pango_attr_font_desc_copy (const PangoAttribute *attr) -{ - const PangoAttrFontDesc *desc_attr = (const PangoAttrFontDesc *)attr; - - return pango_attr_font_desc_new (desc_attr->desc); -} - -static void -pango_attr_font_desc_destroy (PangoAttribute *attr) -{ - PangoAttrFontDesc *desc_attr = (PangoAttrFontDesc *)attr; - - pango_font_description_free (desc_attr->desc); - g_slice_free (PangoAttrFontDesc, desc_attr); -} - -static gboolean -pango_attr_font_desc_equal (const PangoAttribute *attr1, - const PangoAttribute *attr2) -{ - const PangoAttrFontDesc *desc_attr1 = (const PangoAttrFontDesc *)attr1; - const PangoAttrFontDesc *desc_attr2 = (const PangoAttrFontDesc *)attr2; - - return pango_font_description_get_set_fields (desc_attr1->desc) == - pango_font_description_get_set_fields (desc_attr2->desc) && - pango_font_description_equal (desc_attr1->desc, desc_attr2->desc); -} - /** * pango_attr_font_desc_new: * @desc: the font description @@ -726,7 +789,6 @@ pango_attr_font_desc_new (const PangoFontDescription *desc) return (PangoAttribute *)result; } - /** * pango_attr_underline_new: * @underline: the underline style @@ -944,50 +1006,6 @@ pango_attr_letter_spacing_new (int letter_spacing) return pango_attr_int_new (&klass, letter_spacing); } -static PangoAttribute * -pango_attr_shape_copy (const PangoAttribute *attr) -{ - const PangoAttrShape *shape_attr = (PangoAttrShape *)attr; - gpointer data; - - if (shape_attr->copy_func) - data = shape_attr->copy_func (shape_attr->data); - else - data = shape_attr->data; - - return pango_attr_shape_new_with_data (&shape_attr->ink_rect, &shape_attr->logical_rect, - data, shape_attr->copy_func, shape_attr->destroy_func); -} - -static void -pango_attr_shape_destroy (PangoAttribute *attr) -{ - PangoAttrShape *shape_attr = (PangoAttrShape *)attr; - - if (shape_attr->destroy_func) - shape_attr->destroy_func (shape_attr->data); - - g_slice_free (PangoAttrShape, shape_attr); -} - -static gboolean -pango_attr_shape_equal (const PangoAttribute *attr1, - const PangoAttribute *attr2) -{ - const PangoAttrShape *shape_attr1 = (const PangoAttrShape *)attr1; - const PangoAttrShape *shape_attr2 = (const PangoAttrShape *)attr2; - - return (shape_attr1->logical_rect.x == shape_attr2->logical_rect.x && - shape_attr1->logical_rect.y == shape_attr2->logical_rect.y && - shape_attr1->logical_rect.width == shape_attr2->logical_rect.width && - shape_attr1->logical_rect.height == shape_attr2->logical_rect.height && - shape_attr1->ink_rect.x == shape_attr2->ink_rect.x && - shape_attr1->ink_rect.y == shape_attr2->ink_rect.y && - shape_attr1->ink_rect.width == shape_attr2->ink_rect.width && - shape_attr1->ink_rect.height == shape_attr2->ink_rect.height && - shape_attr1->data == shape_attr2->data); -} - /** * pango_attr_shape_new_with_data: * @ink_rect: ink rectangle to assign to each character @@ -1393,9 +1411,265 @@ pango_attr_line_height_new_absolute (int height) return pango_attr_int_new (&klass, height); } -/* - * Attribute List +/* }}} */ +/* {{{ Binding helpers */ + +/** + * 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: + case PANGO_ATTR_LINE_HEIGHT: + 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; + } +} + +/* }}} */ +/* {{{ Attribute List */ G_DEFINE_BOXED_TYPE (PangoAttrList, pango_attr_list, pango_attr_list_copy, @@ -2043,6 +2317,63 @@ _pango_attr_list_has_attributes (const PangoAttrList *list) return list && list->attributes != NULL && list->attributes->len > 0; } +/** + * pango_attr_list_filter: + * @list: a `PangoAttrList` + * @func: (scope call) (closure data): callback function; + * returns %TRUE if an attribute should be filtered out + * @data: (closure): Data to be passed to @func + * + * Given a `PangoAttrList` and callback function, removes + * any elements of @list for which @func returns %TRUE and + * inserts them into a new list. + * + * Return value: (transfer full) (nullable): the new + * `PangoAttrList` or %NULL if no attributes of the + * given types were found + * + * Since: 1.2 + */ +PangoAttrList * +pango_attr_list_filter (PangoAttrList *list, + PangoAttrFilterFunc func, + gpointer data) + +{ + PangoAttrList *new = NULL; + guint i, p; + + g_return_val_if_fail (list != NULL, NULL); + + if (!list->attributes || list->attributes->len == 0) + return NULL; + + for (i = 0, p = list->attributes->len; i < p; i++) + { + PangoAttribute *tmp_attr = g_ptr_array_index (list->attributes, i); + + if ((*func) (tmp_attr, data)) + { + g_ptr_array_remove_index (list->attributes, i); + i--; /* Need to look at this index again */ + p--; + + if (G_UNLIKELY (!new)) + { + new = pango_attr_list_new (); + new->attributes = g_ptr_array_new (); + } + + g_ptr_array_add (new->attributes, tmp_attr); + } + } + + return new; +} + +/* }}} */ +/* {{{ Attribute Iterator */ + G_DEFINE_BOXED_TYPE (PangoAttrIterator, pango_attr_iterator, pango_attr_iterator_copy, @@ -2448,60 +2779,6 @@ pango_attr_iterator_get_font (PangoAttrIterator *iterator, } /** - * pango_attr_list_filter: - * @list: a `PangoAttrList` - * @func: (scope call) (closure data): callback function; - * returns %TRUE if an attribute should be filtered out - * @data: (closure): Data to be passed to @func - * - * Given a `PangoAttrList` and callback function, removes - * any elements of @list for which @func returns %TRUE and - * inserts them into a new list. - * - * Return value: (transfer full) (nullable): the new - * `PangoAttrList` or %NULL if no attributes of the - * given types were found - * - * Since: 1.2 - */ -PangoAttrList * -pango_attr_list_filter (PangoAttrList *list, - PangoAttrFilterFunc func, - gpointer data) - -{ - PangoAttrList *new = NULL; - guint i, p; - - g_return_val_if_fail (list != NULL, NULL); - - if (!list->attributes || list->attributes->len == 0) - return NULL; - - for (i = 0, p = list->attributes->len; i < p; i++) - { - PangoAttribute *tmp_attr = g_ptr_array_index (list->attributes, i); - - if ((*func) (tmp_attr, data)) - { - g_ptr_array_remove_index (list->attributes, i); - i--; /* Need to look at this index again */ - p--; - - if (G_UNLIKELY (!new)) - { - new = pango_attr_list_new (); - new->attributes = g_ptr_array_new (); - } - - g_ptr_array_add (new->attributes, tmp_attr); - } - } - - return new; -} - -/** * pango_attr_iterator_get_attrs: * @iterator: a `PangoAttrIterator` * @@ -2570,258 +2847,6 @@ pango_attr_iterator_advance (PangoAttrIterator *iterator, return TRUE; } +/* }}} */ - -/** - * 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: - case PANGO_ATTR_LINE_HEIGHT: - 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; - } -} +/* vim:set foldmethod=marker expandtab: */ |