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Selection

Description

This module provides access to a widgets selection (e.g. inside a listbox, editor or entry widget).

Synopsis

class HasIndex w i b where getBaseIndex :: w -> i -> IO b newtype Selection w = Selection w class (GUIObject w) => HasSelection w where clearSelection :: w -> IO () class HasSelectionIndex w i where selection :: i -> Config w isSelected :: w -> i -> IO Bool class HasSelectionBaseIndex w i where getSelection :: w -> IO (Maybe i) class HasSelectionIndexRange w i1 i2 where selectionRange :: i1 -> i2 -> Config w class (HasSelectionIndex w i) => HasSelectionBaseIndexRange w i where getSelectionStart :: w -> IO (Maybe i) getSelectionEnd :: w -> IO (Maybe i) getSelectionRange :: w -> IO (Maybe (i, i))

Documentation

class HasIndex w i b where

Internal. Methods getBaseIndex :: w -> i -> IO b Internal. Instances HasIndex Editor BaseIndex BaseIndex HasIndex Editor EndOfText BaseIndex HasIndex Editor Pixels BaseIndex HasIndex Editor (Distance, Distance) BaseIndex (HasIndex Editor i BaseIndex) => HasIndex Editor (i, [IndexModifier]) BaseIndex (HasIndex Editor i BaseIndex) => HasIndex Editor (i, IndexModifier) BaseIndex (HasIndex Editor i BaseIndex) => HasIndex Editor i (Distance, Distance) HasIndex Editor EmbeddedTextWin BaseIndex HasIndex (Entry a) Int BaseIndex HasIndex (Entry a) BaseIndex BaseIndex HasIndex (Entry a) EndOfText BaseIndex HasIndex (Entry a) XCoord BaseIndex HasIndex (Entry a) (ICursor (Entry a)) BaseIndex HasIndex (Entry a) (Selection (Entry a), First) BaseIndex HasIndex (Entry a) (Selection (Entry a), Last) BaseIndex (HasIndex (Entry a) i BaseIndex) => HasIndex (Entry a) i Int HasIndex (ListBox a) Int Int HasIndex (ListBox a) EndOfText Int HasIndex (ListBox a) Pixels Int (Eq a, GUIValue a) => HasIndex (ListBox [a]) (ListBoxElem a) Int (Eq a, GUIValue a, GUIValue [a]) => HasIndex (ListBox a) Int (ListBoxElem a) HasIndex Editor Mark BaseIndex HasIndex Editor (Selection Editor) BaseIndex HasIndex Editor (ICursor Editor) BaseIndex HasIndex Editor MousePosition BaseIndex HasIndex Editor (TextTag, First) BaseIndex HasIndex Editor (TextTag, Last) BaseIndex

newtype Selection w

The Selection datatype. Constructors Selection w Instances HasIndex (Entry a) (Selection (Entry a), First) BaseIndex HasIndex (Entry a) (Selection (Entry a), Last) BaseIndex HasIndex Editor (Selection Editor) BaseIndex (GUIObject w) => GUIObject (Selection w) (HasSelection w, Widget w) => HasColour (Selection w) (HasSelection w, Widget w) => HasBorder (Selection w)

class (GUIObject w) => HasSelection w where

A widget with a selectable content instantiates the class HasSelection. Methods clearSelection :: w -> IO () Clears the widgets selection. Instances HasSelection Editor HasSelection (Entry a) HasSelection (ListBox a)

class HasSelectionIndex w i where

A widget with a indexable selection instantiates the class HasSelectionIndex. Methods selection :: i -> Config w Selects the entry at the specified index. isSelected :: w -> i -> IO Bool Queries if the entry at the given index is selected. Instances (HasIndex Editor i BaseIndex) => HasSelectionIndex Editor i (HasIndex (Entry a) i BaseIndex) => HasSelectionIndex (Entry a) i (HasIndex (ListBox a) i Int) => HasSelectionIndex (ListBox a) i

class HasSelectionBaseIndex w i where

A widget with an indexable selection base instantiates the class HasSelectionBaseIndex. Methods getSelection :: w -> IO (Maybe i) Gets the selected base index (if something is selected). Instances HasSelectionBaseIndex Editor ((Distance, Distance), (Distance, Distance)) HasSelectionBaseIndex (Entry a) (Int, Int) HasSelectionBaseIndex (ListBox a) [Int]

class HasSelectionIndexRange w i1 i2 where

A widget with an indexable selection range instantiates the class HasSelectionIndexRange. Methods selectionRange :: i1 -> i2 -> Config w Selects the widget's entries in the specified range. Instances (HasIndex Editor i1 BaseIndex, HasIndex Editor i2 BaseIndex) => HasSelectionIndexRange Editor i1 i2 (HasIndex (Entry a) i1 BaseIndex, HasIndex (Entry a) i2 BaseIndex) => HasSelectionIndexRange (Entry a) i1 i2 (HasIndex (ListBox a) i1 Int, HasIndex (ListBox a) i2 Int) => HasSelectionIndexRange (ListBox a) i1 i2

class (HasSelectionIndex w i) => HasSelectionBaseIndexRange w i where

A widget with an indexable selection index range instantiates the class HasSelectionBaseIndexRange. Methods getSelectionStart :: w -> IO (Maybe i) Gets the selection start index. getSelectionEnd :: w -> IO (Maybe i) Gets the selection end index. getSelectionRange :: w -> IO (Maybe (i, i)) Gets the selection range. Instances HasSelectionBaseIndexRange Editor (Distance, Distance) HasSelectionBaseIndexRange (Entry a) Int HasSelectionBaseIndexRange (ListBox a) Int

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