HTk.Textitems.Mark

This module provides access to text marks inside an editor widget.

Documentation

data Gravity

The Gravity datatype.

Constructors

ToLeft

ToRight

Instances

Enum Gravity

Methods

succ :: Gravity -> Gravity

pred :: Gravity -> Gravity

toEnum :: Int -> Gravity

fromEnum :: Gravity -> Int

enumFrom :: Gravity -> [Gravity]

enumFromThen :: Gravity -> Gravity -> [Gravity]

enumFromTo :: Gravity -> Gravity -> [Gravity]

enumFromThenTo :: Gravity -> Gravity -> Gravity -> [Gravity]

Eq Gravity

Methods

(==) :: Gravity -> Gravity -> Bool

(/=) :: Gravity -> Gravity -> Bool

Ord Gravity

Methods

compare :: Gravity -> Gravity -> Ordering

(<) :: Gravity -> Gravity -> Bool

(<=) :: Gravity -> Gravity -> Bool

(>) :: Gravity -> Gravity -> Bool

(>=) :: Gravity -> Gravity -> Bool

max :: Gravity -> Gravity -> Gravity

min :: Gravity -> Gravity -> Gravity

Read Gravity

Internal.

Methods

readsPrec :: Int -> ReadS Gravity

readList :: ReadS [Gravity]

readPrec :: ReadPrec Gravity

readListPrec :: ReadPrec [Gravity]

Show Gravity

Internal.

Methods

showsPrec :: Int -> Gravity -> ShowS

show :: Gravity -> String

showList :: [Gravity] -> ShowS

GUIValue Gravity

Internal.

Methods

cdefault :: Gravity

toGUIValue :: Gravity -> GUIVALUE

maybeGUIValue :: GUIVALUE -> Maybe Gravity

fromGUIValue :: GUIVALUE -> Gravity

data Mark

The Mark datatype.

Constructors

Mark Editor String

Instances

Eq Mark

Methods

(==) :: Mark -> Mark -> Bool

(/=) :: Mark -> Mark -> Bool

HasIndex Editor Mark BaseIndex

Internal.

Methods

getBaseIndex :: Editor -> Mark -> IO BaseIndex

createMark

Arguments

:: HasIndex Editor i BaseIndex

=> Editor

the concerned editor widget.

-> String

the name of the text mark to create.

-> i

the text marks index position inside the editor widget.

-> IO Mark

A text mark.

Creates a text mark inside an editor widget and returns a handler.

setMarkGravity

Arguments

:: Mark

the concerned text mark.

-> Gravity

the gravity to set.

-> IO ()

None.

Sets the gravity of the given text mark.

setMark

Arguments

:: HasIndex Editor i BaseIndex

=> Mark

the concerned tex mark.

-> i

-> IO ()

None.

Sets the index position of the text mark.

unsetMark

Arguments

:: Mark

the concerned text mark.

-> IO ()

None.

Unsets a text mark inside an editor widget.

getCurrentMarks

Arguments

:: Editor

the concerned editor widget.

-> IO [Mark]

A list of text marks.

Gets the current marks from an editor widget.

Orphan instances

HasIndex Editor (Selection Editor) BaseIndex

Internal.

Methods

getBaseIndex :: Editor -> Selection Editor -> IO BaseIndex

HasIndex Editor (ICursor Editor) BaseIndex

Internal.

Methods

getBaseIndex :: Editor -> ICursor Editor -> IO BaseIndex