pango.Attribute

pango.Attribute
Prev	The pango Class Reference	Next

pango.Attribute — an attribute that applies to a section of text

Synopsis

class pango.Attribute:
    def copy()

Functions

    def pango.attr_type_register(name)
    def pango.AttrLanguage(language, start_index=0, end_index=1)
    def pango.AttrFamily(family, start_index=0, end_index=1)
    def pango.AttrForeground(red, green, blue, start_index=0, end_index=1)
    def pango.AttrBackground(red, green, blue, start_index=0, end_index=1)
    def pango.AttrSize(size, start_index=0, end_index=1)
    def pango.AttrStyle(style, start_index=0, end_index=1)
    def pango.AttrWeight(weight, start_index=0, end_index=1)
    def pango.AttrVariant(variant, start_index=0, end_index=1)
    def pango.AttrStretch(stretch, start_index=0, end_index=1)
    def pango.AttrFontDesc(desc, start_index=0, end_index=1)
    def pango.AttrUnderline(underline, start_index=0, end_index=1)
    def pango.AttrStrikethrough(strikethrough, start_index=0, end_index=1)
    def pango.AttrRise(rise, start_index=0, end_index=1)
    def pango.AttrShape(ink_rect, logical_rect, start_index=0, end_index=1)
    def pango.AttrScale(scale, start_index=0, end_index=1)
    def pango.AttrFallback(fallback, start_index=0, end_index=1)
    def pango.AttrSizeAbsolute(size, start_index=0, end_index=1)
    def pango.AttrUnderlineColor(red, green, blue, start_index=0, end_index=1)
    def pango.AttrStrikethroughColor(red, green, blue, start_index=0, end_index=1)
    def pango.AttrLetterSpacing(letter_spacing, start_index=0, end_index=1)

Attributes

All pango.Attribute objects support the following three attributes.

"end_index"	Read-Write	The index of the end of the application of the attribute in the associated text.
"start_index"	Read-Write	The index of the start of the application of the attribute in the associated text.
"type"	Read	The attribute type.

In addition each pango.Attribute type supports one or more additional attributes that are specific to the type:

"value"	Read	`ATTR_LANGUAGE`	The `pango.Language`.
"value"	Read	`ATTR_FAMILY`	The string containing the font family name list (e.g. "normal,sans,serif,monospace")
"value"	Read	`ATTR_STYLE`	The font slant style. See the `pango.AttrStyle`() function for more details.
"value"	Read	`ATTR_WEIGHT`	The font weight. See the `pango.AttrWeight`() function for more detail.
"value"	Read	`ATTR_VARIANT`	The font variant. See the `pango.AttrVariant`() function for more detail.
"value"	Read	`ATTR_STRETCH`	The font stretch. See the `pango.AttrStretch`() function for more details.
"value"	Read	`ATTR_SIZE`	The font size in thousandths of a point.
"desc"	Read	`ATTR_FONT_DESC`	The `pango.FontDescription` object.
"color"	Read	`ATTR_FOREGROUND`	The foreground `pango.Color` object.
"color"	Read	`ATTR_BACKGROUND`	The background `pango.Color` object.
"value"	Read	`ATTR_UNDERLINE`	The underline style. See the `pango.AttrUnderline`() function for more details.
"value"	Read	`ATTR_STRIKETHROUGH`	`TRUE` if the text is struck through.
"value"	Read	`ATTR_RISE`	The displacement of the text from the baseline.
"ink_rect"	Read	`ATTR_SHAPE`	The 4-tuple specifying the ink rectangle. See the `pango.AttrShape`() function for more details.
"logical_rect"	Read	`ATTR_SHAPE`	The 4-tuple specifying the logical rectangle. See the `pango.AttrShape`() function for more details.
"value"	Read	`ATTR_SCALE`	The font size scale factor as a float.
"value"	Read	`ATTR_FALLBACK`	`TRUE` if font fallback is enabled.
"value"	Read	`ATTR_LETTER_SPACING`	The extra space between graphemes.
"color"	Read	`ATTR_UNDERLINE_COLOR`	The `pango.Color` object used for the color of the underline.
"color"	Read	`ATTR_STRIKETHROUGH_COLOR`	The `pango.Color` object used for the color of the strikethrough.
"value"	Read	`ATTR_ABSOLUTE_SIZE`	The font size in device units.

Description

The pango.Attribute object contains an attribute that applies to a section of text. The predefined attribute types are:

`pango.ATTR_LANGUAGE`	Specifies a `pango.Language`.
`pango.ATTR_FAMILY`	Specifies a font family name list as a string.
`pango.ATTR_STYLE`	Specifies a font slant style. See the `pango.AttrStyle`() function for more details.
`pango.ATTR_WEIGHT`	Specifies a font weight. See the `pango.AttrWeight`() function for more detail.
`pango.ATTR_VARIANT`	Specifies a font variant (normal or small caps). See the `pango.AttrVariant`() function for more detail.
`pango.ATTR_STRETCH`	Specifies a font stretch. See the `pango.AttrStretch`() function for more details.
`pango.ATTR_SIZE`	Specifies a font size in thousandths of a point.
`pango.ATTR_FONT_DESC`	Specifies a `pango.FontDescription`.
`pango.ATTR_FOREGROUND`	Specifies a foreground `pango.Color`.
`pango.ATTR_BACKGROUND`	Specifies a background `pango.Color`.
`pango.ATTR_UNDERLINE`	Specifies an underline style. See the `pango.AttrUnderline`() function for more details.
`pango.ATTR_STRIKETHROUGH`	If `TRUE` the text is struck through.
`pango.ATTR_RISE`	Specifies the displacement of the text from the baseline.
`pango.ATTR_SHAPE`	Specifies a shape. See the `pango.AttrShape`() function for more details.
`pango.ATTR_SCALE`	Specifies a font size scale factor.
`pango.ATTR_FALLBACK`	if `TRUE`, fallback to other fonts is enabled.
`pango.ATTR_LETTER_SPACING`	Specifies the extra space between graphemes.
`pango.ATTR_UNDERLINE_COLOR`	Specifies the color of the underline.
`pango.ATTR_STRIKETHROUGH_COLOR`	Specifies the color of the strikethrough.
`pango.ATTR_ABSOLUTE_SIZE`	Specifies the font size in device units.

Additional attribute types can be registered with the pango.attr_type_register() function.

Methods

pango.Attribute.copy

    def copy()

Returns : a new pango.Attribute object

The copy() method returns a new pango.Attribute object that is a copy of this attribute.

Functions

pango.attr_type_register

    def pango.attr_type_register(name)

`name` :	a name for the type. (Currently not used.)
Returns :	the new attribute type ID integer.

The attr_type_register() function returns a new attribute type ID integer value.

pango.AttrLanguage

    def pango.AttrLanguage(language, start_index=0, end_index=1)

`language` :	a `pango.Language` object.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object.

The AttrLanguage() function creates a new pango.Attribute object of the type pango.ATTR_LANGUAGE with the pango.Language specified by language and the text range specified by start_index and end_index.

pango.AttrFamily

    def pango.AttrFamily(family, start_index=0, end_index=1)

`family` :	the string containing a font family name list.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object.

The AttrFamily() function creates a new pango.Attribute object of the type pango.ATTR_FAMILY with the font family name list specified by the string family and the text range specified by start_index and end_index.

pango.AttrForeground

    def pango.AttrForeground(red, green, blue, start_index=0, end_index=1)

`red` :	the red component of the color in the range 0 to 65535.
`green` :	the green component of the color in the range 0 to 65535.
`blue` :	the blue component of the color in the range 0 to 65535.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object.

The AttrForeground() function creates a new pango.Attribute of the type pango.ATTR_FOREGROUND with the RGB color specified by red, green and blue and the text range specified by start_index and end_index.

pango.AttrBackground

    def pango.AttrBackground(red, green, blue, start_index=0, end_index=1)

`red` :	the red component of the color in the range 0 to 65535.
`green` :	the green component of the color in the range 0 to 65535.
`blue` :	the blue component of the color in the range 0 to 65535.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object.

The AttrBackground() function creates a new pangoAttribute of the type pango.ATTR_BACKGROUND with the RGB color specified by red, green and blue and the text range specified by start_index and end_index.

pango.AttrSize

    def pango.AttrSize(size, start_index=0, end_index=1)

`size` :	the font size in thousandths of a point.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

The AttrSize() function creates a new pango.Attribute object of the type pango.ATTR_SIZE with the font size specified by size and the text range specified by start_index and end_index.

pango.AttrStyle

    def pango.AttrStyle(style, start_index=0, end_index=1)

`style` :	the font slant style.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

The AttrStyle() function creates a new pango.Attribute object of the type pango.ATTR_STYLE with the font slant style specified by style and the text range specified by start_index and end_index. The value of style must be one of:

`pango.STYLE_NORMAL`	The font is upright.
`pango.STYLE_OBLIQUE`	The font is slanted in a roman style.
`pango.STYLE_ITALIC`	The font is slanted in an italic style.

pango.AttrWeight

    def pango.AttrWeight(weight, start_index=0, end_index=1)

`weight` :	the font weight.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

The AttrWeight() function creates a new pango.Attribute object of the type pango.ATTR_WEIGHT with the font weight specified by weight and the text range specified by start_index and end_index. The value of style must be one of:

`pango.WEIGHT_ULTRALIGHT`	The ultralight weight (= 200).
`pango.WEIGHT_LIGHT`	The light weight (=300).
`pango.WEIGHT_NORMAL`	The default weight (= 400).
`pango.WEIGHT_BOLD`	The bold weight (= 700).
`pango.WEIGHT_ULTRABOLD`	The ultrabold weight (= 800).
`pango.WEIGHT_HEAVY`	The heavy weight (= 900).

pango.AttrVariant

    def pango.AttrVariant(variant, start_index=0, end_index=1)

`variant` :	the font variant.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

The AttrVariant() function creates a new pango.Attribute object of the type pango.ATTR_VARIANT with the font variant specified by variant and the text range specified by start_index and end_index. The value of variant must be one of:

`pango.VARIANT_NORMAL`	A normal font.
`pango.VARIANT_SMALL_CAPS`	A font with the lower case characters replaced by smaller variants of the capital characters.

pango.AttrStretch

    def pango.AttrStretch(stretch, start_index=0, end_index=1)

`stretch` :	the font stretch style.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

The AttrStretch() function creates a new pango.Attribute object of the type pango.ATTR_STRETCH with the font stretch style specified by stretch and the text range specified by start_index and end_index. The value of stretch must be one of:

`pango.STRETCH_ULTRA_CONDENSED`	The most narrow width
`pango.STRETCH_EXTRA_CONDENSED`
`pango.STRETCH_CONDENSED`
`pango.STRETCH_SEMI_CONDENSED`
`pango.STRETCH_NORMAL`	The normal width.
`pango.STRETCH_SEMI_EXPANDED`
`pango.STRETCH_EXPANDED`
`pango.STRETCH_EXTRA_EXPANDED`
`pango.STRETCH_ULTRA_EXPANDED`	The most expanded width

pango.AttrFontDesc

    def pango.AttrFontDesc(desc, start_index=0, end_index=1)

`desc` :	a `pango.FontDescription` object.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

The AttrFontDesc() function creates a new pango.Attribute object of the type pango.ATTR_FONT_DESC with the pango.FontDescription specified by desc and the text range specified by start_index and end_index.

pango.AttrUnderline

    def pango.AttrUnderline(underline, start_index=0, end_index=1)

`underline` :	the underline style.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

The AttrUnderline() function creates a new pango.Attribute object of the type pango.ATTR_UNDERLINE with the underline style specified by underline and the text range specified by start_index and end_index. The value of underline must be one of:

`pango.UNDERLINE_NONE`	No underline should be drawn.
`pango.UNDERLINE_SINGLE`	A single underline should be drawn.
`pango.UNDERLINE_DOUBLE`	A double underline should be drawn.
`pango.UNDERLINE_LOW`	A single underline should be drawn at a position beneath the ink extents of the text being underlined. This should be used only for underlining single characters, such as for keyboard accelerators. `pango.UNDERLINE_SINGLE` should be used for extended portions of text.

pango.AttrStrikethrough

    def pango.AttrStrikethrough(strikethrough, start_index=0, end_index=1)

`strikethrough` :	if `TRUE` the text should be struck through.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

The AttrStrikethrough() function creates a new pango.Attribute object of the type pango.ATTR_STRIKETHROUGH with the value specified by strikethrough and the text range specified by start_index and end_index. If strikethough is TRUE the text should be struck through.

pango.AttrRise

    def pango.AttrRise(rise, start_index=0, end_index=1)

`rise` :	the displacement of the text from the baseline.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

The AttrRise() function creates a new pango.Attribute object of the type pango.ATTR_RISE with the text displacement from the baseline specified by rise and the text range specified by start_index and end_index.

pango.AttrShape

    def pango.AttrShape(ink_rect, logical_rect, start_index=0, end_index=1)

`ink_rect` :	the ink rectangle of the shape.
`logical_rect` :	the logical rectangle of the shape.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

The AttrShape() function creates a new pango.Attribute object of the type pango.ATTR_SHAPE with the shape rectangles specified by ink_rect and logical_rect and the text range specified by start_index and end_index. A shape is used to impose a particular ink and logical rect on the result of shaping a particular glyph. This might be used, for instance, for embedding a picture or a widget inside a pango.Layout.

pango.AttrScale

    def pango.AttrScale(scale, start_index=0, end_index=1)

`scale` :	the font size scale factor as a float.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

The AttrScale() function creates a new pango.Attribute object of the type pango.ATTR_SCALE with the font size scale factor specified by scale and the text range specified by start_index and end_index. The value of scale can also be one of the following pre-defined values:

`pango.SCALE_XX_SMALL`	0.5787037037037 - the scale factor for three shrinking steps (1 / (1.2 * 1.2 * 1.2)).
`pango.SCALE_X_SMALL`	0.6444444444444 - the scale factor for two shrinking steps (1 / (1.2 * 1.2)).
`pango.SCALE_SMALL`	0.8333333333333 - the scale factor for one shrinking step (1 / 1.2).
`pango.SCALE_MEDIUM`	1.0 - The scale factor for normal size.
`pango.SCALE_LARGE`	1.2 - the scale factor for one magnification step.
`pango.SCALE_X_LARGE`	1.4399999999999 - the scale factor for two magnification steps (1.2 * 1.2).
`pango.SCALE_XX_LARGE`	1.728 - the scale factor for three magnification steps (1.2 * 1.2 * 1.2).

pango.AttrFallback

    def pango.AttrFallback(fallback, start_index=0, end_index=1)

`fallback` :	if `TRUE`, we should fall back on other fonts for characters the active font is missing.
`start_index` :	the index of the start of the attribute application in the text.
`end_index` :	the index of the end of the attribute application in the text.
Returns :	a new `pango.Attribute` object

Note

This function is available in PyGTK 2.4 and above.

The AttrFallback() function creates a new pango.Attribute object of the type pango.ATTR_FALLBACK. If fallback is TRUE other fonts on the system can be used to provide characters missing from the current font. Otherwise, only characters from the closest matching font can be used.