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-rw-r--r--pango/pango-attributes.h308
1 files changed, 102 insertions, 206 deletions
diff --git a/pango/pango-attributes.h b/pango/pango-attributes.h
index 6ba09154..9b679e95 100644
--- a/pango/pango-attributes.h
+++ b/pango/pango-attributes.h
@@ -32,14 +32,21 @@ G_BEGIN_DECLS
typedef struct _PangoAttribute PangoAttribute;
typedef struct _PangoAttrClass PangoAttrClass;
-typedef struct _PangoAttrString PangoAttrString;
-typedef struct _PangoAttrLanguage PangoAttrLanguage;
-typedef struct _PangoAttrInt PangoAttrInt;
-typedef struct _PangoAttrSize PangoAttrSize;
-typedef struct _PangoAttrFloat PangoAttrFloat;
-typedef struct _PangoAttrColor PangoAttrColor;
-typedef struct _PangoAttrFontDesc PangoAttrFontDesc;
-typedef struct _PangoAttrFontFeatures PangoAttrFontFeatures;
+typedef enum
+{
+ PANGO_ATTR_VALUE_STRING,
+ PANGO_ATTR_VALUE_INT,
+ PANGO_ATTR_VALUE_BOOLEAN,
+ PANGO_ATTR_VALUE_FLOAT,
+ PANGO_ATTR_VALUE_COLOR,
+ PANGO_ATTR_VALUE_LANGUAGE,
+ PANGO_ATTR_VALUE_FONT_DESC,
+ PANGO_ATTR_VALUE_POINTER
+} PangoAttrValueType;
+
+#define PANGO_ATTR_TYPE(value) (PANGO_ATTR_VALUE_##value | (__COUNTER__ << 8))
+#define PANGO_ATTR_TYPE_VALUE_TYPE(type) ((PangoAttrValueType)((type) & 0xff))
+#define PANGO_ATTR_VALUE_TYPE(attr) PANGO_ATTR_TYPE_VALUE_TYPE ((attr)->type)
/**
* PangoAttrType:
@@ -89,45 +96,47 @@ typedef struct _PangoAttrFontFeatures PangoAttrFontFeatures;
*/
typedef enum
{
- PANGO_ATTR_INVALID, /* 0 is an invalid attribute type */
- PANGO_ATTR_LANGUAGE, /* PangoAttrLanguage */
- PANGO_ATTR_FAMILY, /* PangoAttrString */
- PANGO_ATTR_STYLE, /* PangoAttrInt */
- PANGO_ATTR_WEIGHT, /* PangoAttrInt */
- PANGO_ATTR_VARIANT, /* PangoAttrInt */
- PANGO_ATTR_STRETCH, /* PangoAttrInt */
- PANGO_ATTR_SIZE, /* PangoAttrSize */
- PANGO_ATTR_FONT_DESC, /* PangoAttrFontDesc */
- PANGO_ATTR_FOREGROUND, /* PangoAttrColor */
- PANGO_ATTR_BACKGROUND, /* PangoAttrColor */
- PANGO_ATTR_UNDERLINE, /* PangoAttrInt */
- PANGO_ATTR_STRIKETHROUGH, /* PangoAttrInt */
- PANGO_ATTR_RISE, /* PangoAttrInt */
- PANGO_ATTR_SCALE, /* PangoAttrFloat */
- PANGO_ATTR_FALLBACK, /* PangoAttrInt */
- PANGO_ATTR_LETTER_SPACING, /* PangoAttrInt */
- PANGO_ATTR_UNDERLINE_COLOR, /* PangoAttrColor */
- PANGO_ATTR_STRIKETHROUGH_COLOR,/* PangoAttrColor */
- PANGO_ATTR_ABSOLUTE_SIZE, /* PangoAttrSize */
- PANGO_ATTR_GRAVITY, /* PangoAttrInt */
- PANGO_ATTR_GRAVITY_HINT, /* PangoAttrInt */
- PANGO_ATTR_FONT_FEATURES, /* PangoAttrFontFeatures */
- PANGO_ATTR_FOREGROUND_ALPHA, /* PangoAttrInt */
- PANGO_ATTR_BACKGROUND_ALPHA, /* PangoAttrInt */
- PANGO_ATTR_ALLOW_BREAKS, /* PangoAttrInt */
- PANGO_ATTR_SHOW, /* PangoAttrInt */
- PANGO_ATTR_INSERT_HYPHENS, /* PangoAttrInt */
- PANGO_ATTR_OVERLINE, /* PangoAttrInt */
- PANGO_ATTR_OVERLINE_COLOR, /* PangoAttrColor */
- PANGO_ATTR_LINE_HEIGHT, /* PangoAttrFloat */
- PANGO_ATTR_ABSOLUTE_LINE_HEIGHT, /* PangoAttrInt */
- PANGO_ATTR_TEXT_TRANSFORM, /* PangoAttrInt */
- PANGO_ATTR_WORD, /* PangoAttrInt */
- PANGO_ATTR_SENTENCE, /* PangoAttrInt */
- PANGO_ATTR_BASELINE_SHIFT, /* PangoAttrSize */
- PANGO_ATTR_FONT_SCALE, /* PangoAttrInt */
+ PANGO_ATTR_INVALID,
+ PANGO_ATTR_LANGUAGE = PANGO_ATTR_TYPE (LANGUAGE),
+ PANGO_ATTR_FAMILY = PANGO_ATTR_TYPE (STRING),
+ PANGO_ATTR_STYLE = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_WEIGHT = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_VARIANT = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_STRETCH = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_SIZE = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_FONT_DESC = PANGO_ATTR_TYPE (FONT_DESC),
+ PANGO_ATTR_FOREGROUND = PANGO_ATTR_TYPE (COLOR),
+ PANGO_ATTR_BACKGROUND = PANGO_ATTR_TYPE (COLOR),
+ PANGO_ATTR_UNDERLINE = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_STRIKETHROUGH = PANGO_ATTR_TYPE (BOOLEAN),
+ PANGO_ATTR_RISE = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_SCALE = PANGO_ATTR_TYPE (FLOAT),
+ PANGO_ATTR_FALLBACK = PANGO_ATTR_TYPE (BOOLEAN),
+ PANGO_ATTR_LETTER_SPACING = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_UNDERLINE_COLOR = PANGO_ATTR_TYPE (COLOR),
+ PANGO_ATTR_STRIKETHROUGH_COLOR = PANGO_ATTR_TYPE (COLOR),
+ PANGO_ATTR_ABSOLUTE_SIZE = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_GRAVITY = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_GRAVITY_HINT = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_FONT_FEATURES = PANGO_ATTR_TYPE (STRING),
+ PANGO_ATTR_FOREGROUND_ALPHA = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_BACKGROUND_ALPHA = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_ALLOW_BREAKS = PANGO_ATTR_TYPE (BOOLEAN),
+ PANGO_ATTR_SHOW = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_INSERT_HYPHENS = PANGO_ATTR_TYPE (BOOLEAN),
+ PANGO_ATTR_OVERLINE = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_OVERLINE_COLOR = PANGO_ATTR_TYPE (COLOR),
+ PANGO_ATTR_LINE_HEIGHT = PANGO_ATTR_TYPE (FLOAT),
+ PANGO_ATTR_ABSOLUTE_LINE_HEIGHT = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_TEXT_TRANSFORM = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_WORD = PANGO_ATTR_TYPE (BOOLEAN),
+ PANGO_ATTR_SENTENCE = PANGO_ATTR_TYPE (BOOLEAN),
+ PANGO_ATTR_BASELINE_SHIFT = PANGO_ATTR_TYPE (INT),
+ PANGO_ATTR_FONT_SCALE = PANGO_ATTR_TYPE (INT),
} PangoAttrType;
+#undef PANGO_ATTR_TYPE
+
/**
* PangoUnderline:
* @PANGO_UNDERLINE_NONE: no underline should be drawn
@@ -302,11 +311,22 @@ typedef enum {
*/
struct _PangoAttribute
{
- const PangoAttrClass *klass;
+ PangoAttrType type;
guint start_index;
guint end_index;
+ union {
+ char *str_value;
+ int int_value;
+ gboolean boolean_value;
+ double double_value;
+ PangoColor color_value;
+ PangoLanguage *lang_value;
+ PangoFontDescription *font_value;
+ gpointer pointer_value;
+ };
};
+
/**
* PangoAttrFilterFunc:
* @attribute: a Pango attribute
@@ -330,157 +350,19 @@ typedef gboolean (*PangoAttrFilterFunc) (PangoAttribute *attribute,
**/
typedef gpointer (*PangoAttrDataCopyFunc) (gconstpointer user_data);
-/**
- * PangoAttrClass:
- * @type: the type ID for this attribute
- * @copy: function to duplicate an attribute of this type
- * (see [method@Pango.Attribute.copy])
- * @destroy: function to free an attribute of this type
- * (see [method@Pango.Attribute.destroy])
- * @equal: function to check two attributes of this type for equality
- * (see [method@Pango.Attribute.equal])
- *
- * The `PangoAttrClass` structure stores the type and operations for
- * a particular type of attribute.
- *
- * The functions in this structure should not be called directly. Instead,
- * one should use the wrapper functions provided for `PangoAttribute`.
- */
-struct _PangoAttrClass
-{
- /*< public >*/
- PangoAttrType type;
- PangoAttribute * (*copy) (const PangoAttribute *attr);
- void (*destroy) (PangoAttribute *attr);
- gboolean (*equal) (const PangoAttribute *attr1, const PangoAttribute *attr2);
-};
-
-/**
- * PangoAttrString:
- * @attr: the common portion of the attribute
- * @value: the string which is the value of the attribute
- *
- * The `PangoAttrString` structure is used to represent attributes with
- * a string value.
- */
-struct _PangoAttrString
-{
- PangoAttribute attr;
- char *value;
-};
-/**
- * PangoAttrLanguage:
- * @attr: the common portion of the attribute
- * @value: the `PangoLanguage` which is the value of the attribute
- *
- * The `PangoAttrLanguage` structure is used to represent attributes that
- * are languages.
- */
-struct _PangoAttrLanguage
-{
- PangoAttribute attr;
- PangoLanguage *value;
-};
-/**
- * PangoAttrInt:
- * @attr: the common portion of the attribute
- * @value: the value of the attribute
- *
- * The `PangoAttrInt` structure is used to represent attributes with
- * an integer or enumeration value.
- */
-struct _PangoAttrInt
-{
- PangoAttribute attr;
- int value;
-};
-/**
- * PangoAttrFloat:
- * @attr: the common portion of the attribute
- * @value: the value of the attribute
- *
- * The `PangoAttrFloat` structure is used to represent attributes with
- * a float or double value.
- */
-struct _PangoAttrFloat
-{
- PangoAttribute attr;
- double value;
-};
-/**
- * PangoAttrColor:
- * @attr: the common portion of the attribute
- * @color: the `PangoColor` which is the value of the attribute
- *
- * The `PangoAttrColor` structure is used to represent attributes that
- * are colors.
- */
-struct _PangoAttrColor
-{
- PangoAttribute attr;
- PangoColor color;
-};
-
-/**
- * PangoAttrSize:
- * @attr: the common portion of the attribute
- * @size: size of font, in units of 1/%PANGO_SCALE of a point (for
- * %PANGO_ATTR_SIZE) or of a device unit (for %PANGO_ATTR_ABSOLUTE_SIZE)
- * @absolute: whether the font size is in device units or points.
- * This field is only present for compatibility with Pango-1.8.0
- * (%PANGO_ATTR_ABSOLUTE_SIZE was added in 1.8.1); and always will
- * be %FALSE for %PANGO_ATTR_SIZE and %TRUE for %PANGO_ATTR_ABSOLUTE_SIZE.
- *
- * The `PangoAttrSize` structure is used to represent attributes which
- * set font size.
- */
-struct _PangoAttrSize
-{
- PangoAttribute attr;
- int size;
- guint absolute : 1;
-};
-
-/**
- * PangoAttrFontDesc:
- * @attr: the common portion of the attribute
- * @desc: the font description which is the value of this attribute
- *
- * The `PangoAttrFontDesc` structure is used to store an attribute that
- * sets all aspects of the font description at once.
- */
-struct _PangoAttrFontDesc
-{
- PangoAttribute attr;
- PangoFontDescription *desc;
-};
-
-/**
- * PangoAttrFontFeatures:
- * @attr: the common portion of the attribute
- * @features: the features, as a string in CSS syntax
- *
- * The `PangoAttrFontFeatures` structure is used to represent OpenType
- * font features as an attribute.
- *
- * Since: 1.38
- */
-struct _PangoAttrFontFeatures
-{
- PangoAttribute attr;
- gchar *features;
-};
+typedef char * (*PangoAttrDataSerializeFunc) (gconstpointer user_data);
PANGO_AVAILABLE_IN_ALL
GType pango_attribute_get_type (void) G_GNUC_CONST;
PANGO_AVAILABLE_IN_ALL
-PangoAttrType pango_attr_type_register (const char *name);
+PangoAttrType pango_attr_type_register (PangoAttrDataCopyFunc copy,
+ GDestroyNotify destroy,
+ GEqualFunc equal,
+ const char *name,
+ PangoAttrDataSerializeFunc serialize);
PANGO_AVAILABLE_IN_1_22
const char * pango_attr_type_get_name (PangoAttrType type) G_GNUC_CONST;
-PANGO_AVAILABLE_IN_1_20
-void pango_attribute_init (PangoAttribute *attr,
- const PangoAttrClass *klass);
PANGO_AVAILABLE_IN_ALL
PangoAttribute * pango_attribute_copy (const PangoAttribute *attr);
PANGO_AVAILABLE_IN_ALL
@@ -574,23 +456,37 @@ PANGO_AVAILABLE_IN_1_50
PangoAttribute * pango_attr_line_height_new_absolute (int height);
PANGO_AVAILABLE_IN_1_50
PangoAttribute * pango_attr_text_transform_new (PangoTextTransform transform);
+PANGO_AVAILABLE_IN_1_52
+PangoAttribute * pango_attr_custom_new (PangoAttrType type,
+ gpointer user_data);
+
+PANGO_AVAILABLE_IN_1_52
+gboolean pango_attribute_get_string (PangoAttribute *attribute,
+ const char **value);
+PANGO_AVAILABLE_IN_1_52
+gboolean pango_attribute_get_language (PangoAttribute *attribute,
+ PangoLanguage **value);
+PANGO_AVAILABLE_IN_1_52
+gboolean pango_attribute_get_int (PangoAttribute *attribute,
+ int *value);
+PANGO_AVAILABLE_IN_1_52
+gboolean pango_attribute_get_boolean (PangoAttribute *attribute,
+ gboolean *value);
+PANGO_AVAILABLE_IN_1_52
+gboolean pango_attribute_get_float (PangoAttribute *attribute,
+ double *value);
+PANGO_AVAILABLE_IN_1_52
+gboolean pango_attribute_get_color (PangoAttribute *attribute,
+ PangoColor *value);
+PANGO_AVAILABLE_IN_1_52
+gboolean pango_attribute_get_font_desc (PangoAttribute *attribute,
+ PangoFontDescription **value);
+
+PANGO_AVAILABLE_IN_1_52
+gboolean pango_attribute_get_custom (PangoAttribute *attribute,
+ gpointer *value);
+
-PANGO_AVAILABLE_IN_1_50
-PangoAttrString * pango_attribute_as_string (PangoAttribute *attr);
-PANGO_AVAILABLE_IN_1_50
-PangoAttrLanguage * pango_attribute_as_language (PangoAttribute *attr);
-PANGO_AVAILABLE_IN_1_50
-PangoAttrInt * pango_attribute_as_int (PangoAttribute *attr);
-PANGO_AVAILABLE_IN_1_50
-PangoAttrSize * pango_attribute_as_size (PangoAttribute *attr);
-PANGO_AVAILABLE_IN_1_50
-PangoAttrFloat * pango_attribute_as_float (PangoAttribute *attr);
-PANGO_AVAILABLE_IN_1_50
-PangoAttrColor * pango_attribute_as_color (PangoAttribute *attr);
-PANGO_AVAILABLE_IN_1_50
-PangoAttrFontDesc * pango_attribute_as_font_desc (PangoAttribute *attr);
-PANGO_AVAILABLE_IN_1_50
-PangoAttrFontFeatures * pango_attribute_as_font_features (PangoAttribute *attr);
/* Attribute lists */
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