GI.Gtk.Objects.ComboBox

A GtkComboBox is a widget that allows the user to choose from a list of valid choices.

The GtkComboBox displays the selected choice; when activated, the GtkComboBox displays a popup which allows the user to make a new choice.

The GtkComboBox uses the model-view pattern; the list of valid choices is specified in the form of a tree model, and the display of the choices can be adapted to the data in the model by using cell renderers, as you would in a tree view. This is possible since GtkComboBox implements the CellLayout interface. The tree model holding the valid choices is not restricted to a flat list, it can be a real tree, and the popup will reflect the tree structure.

To allow the user to enter values not in the model, the ComboBox:hasEntry property allows the GtkComboBox to contain a Entry. This entry can be accessed by calling comboBoxGetChild on the combo box.

For a simple list of textual choices, the model-view API of GtkComboBox can be a bit overwhelming. In this case, ComboBoxText offers a simple alternative. Both GtkComboBox and GtkComboBoxText can contain an entry.

CSS nodes

combobox
├── box.linked
│   ╰── button.combo
│       ╰── box
│           ├── cellview
│           ╰── arrow
╰── window.popup

A normal combobox contains a box with the .linked class, a button with the .combo class and inside those buttons, there are a cellview and an arrow.

combobox
├── box.linked
│   ├── entry.combo
│   ╰── button.combo
│       ╰── box
│           ╰── arrow
╰── window.popup

A GtkComboBox with an entry has a single CSS node with name combobox. It contains a box with the .linked class. That box contains an entry and a button, both with the .combo class added. The button also contains another node with name arrow.

Accessibility

GtkComboBox uses the AccessibleRoleComboBox role.

Exported types

newtype ComboBox

Memory-managed wrapper type.

Constructors

ComboBox (ManagedPtr ComboBox)

Instances

Eq ComboBox

Defined in GI.Gtk.Objects.ComboBox

Methods

(==) :: ComboBox -> ComboBox -> Bool

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

GObject ComboBox

Defined in GI.Gtk.Objects.ComboBox

ManagedPtrNewtype ComboBox

Defined in GI.Gtk.Objects.ComboBox

Methods

toManagedPtr :: ComboBox -> ManagedPtr ComboBox

TypedObject ComboBox

Defined in GI.Gtk.Objects.ComboBox

Methods

glibType :: IO GType

HasParentTypes ComboBox

Defined in GI.Gtk.Objects.ComboBox

IsGValue (Maybe ComboBox)

Convert ComboBox to and from GValue. See toGValue and fromGValue.

Defined in GI.Gtk.Objects.ComboBox

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Maybe ComboBox -> IO ()

gvalueGet_ :: Ptr GValue -> IO (Maybe ComboBox)

type ParentTypes ComboBox

Defined in GI.Gtk.Objects.ComboBox

type ParentTypes ComboBox = '[Widget, Object, Accessible, Buildable, CellEditable, CellLayout, ConstraintTarget]

class (GObject o, IsDescendantOf ComboBox o) => IsComboBox o

Type class for types which can be safely cast to ComboBox, for instance with toComboBox.

Instances

(GObject o, IsDescendantOf ComboBox o) => IsComboBox o

Defined in GI.Gtk.Objects.ComboBox

toComboBox :: (MonadIO m, IsComboBox o) => o -> m ComboBox

Cast to ComboBox, for types for which this is known to be safe. For general casts, use castTo.

Methods

Click to display all available methods, including inherited ones

Methods

actionSetEnabled, activate, activateAction, activateDefault, addAttribute, addController, addCssClass, addMnemonicLabel, addTickCallback, allocate, bindProperty, bindPropertyFull, childFocus, clear, clearAttributes, computeBounds, computeExpand, computePoint, computeTransform, contains, createPangoContext, createPangoLayout, disposeTemplate, dragCheckThreshold, editingDone, errorBell, forceFloating, freezeNotify, getv, grabFocus, hasCssClass, hasDefault, hasFocus, hasVisibleFocus, hide, inDestruction, initTemplate, insertActionGroup, insertAfter, insertBefore, isAncestor, isDrawable, isFloating, isFocus, isSensitive, isVisible, keynavFailed, listMnemonicLabels, map, measure, mnemonicActivate, notify, notifyByPspec, observeChildren, observeControllers, packEnd, packStart, pick, popdown, popup, popupForDevice, queueAllocate, queueDraw, queueResize, realize, ref, refSink, removeController, removeCssClass, removeMnemonicLabel, removeTickCallback, removeWidget, reorder, resetProperty, resetRelation, resetState, runDispose, shouldLayout, show, sizeAllocate, snapshotChild, startEditing, stealData, stealQdata, thawNotify, translateCoordinates, triggerTooltipQuery, unmap, unparent, unrealize, unref, unsetStateFlags, updateProperty, updateRelation, updateState, watchClosure.

Getters

getAccessibleRole, getActive, getActiveId, getActiveIter, getAllocatedBaseline, getAllocatedHeight, getAllocatedWidth, getAllocation, getAncestor, getArea, getBuildableId, getButtonSensitivity, getCanFocus, getCanTarget, getCells, getChild, getChildVisible, getClipboard, getCssClasses, getCssName, getCursor, getData, getDirection, getDisplay, getEntryTextColumn, getFirstChild, getFocusChild, getFocusOnClick, getFocusable, getFontMap, getFontOptions, getFrameClock, getHalign, getHasEntry, getHasTooltip, getHeight, getHexpand, getHexpandSet, getIdColumn, getLastChild, getLayoutManager, getMapped, getMarginBottom, getMarginEnd, getMarginStart, getMarginTop, getModel, getName, getNative, getNextSibling, getOpacity, getOverflow, getPangoContext, getParent, getPopupFixedWidth, getPreferredSize, getPrevSibling, getPrimaryClipboard, getProperty, getQdata, getRealized, getReceivesDefault, getRequestMode, getRoot, getScaleFactor, getSensitive, getSettings, getSize, getSizeRequest, getStateFlags, getStyleContext, getTemplateChild, getTooltipMarkup, getTooltipText, getValign, getVexpand, getVexpandSet, getVisible, getWidth.

Setters

setActive, setActiveId, setActiveIter, setButtonSensitivity, setCanFocus, setCanTarget, setCellDataFunc, setChild, setChildVisible, setCssClasses, setCursor, setCursorFromName, setData, setDataFull, setDirection, setEntryTextColumn, setFocusChild, setFocusOnClick, setFocusable, setFontMap, setFontOptions, setHalign, setHasTooltip, setHexpand, setHexpandSet, setIdColumn, setLayoutManager, setMarginBottom, setMarginEnd, setMarginStart, setMarginTop, setModel, setName, setOpacity, setOverflow, setParent, setPopupFixedWidth, setProperty, setReceivesDefault, setRowSeparatorFunc, setSensitive, setSizeRequest, setStateFlags, setTooltipMarkup, setTooltipText, setValign, setVexpand, setVexpandSet, setVisible.

getActive

comboBoxGetActive

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: A GtkComboBox

-> m Int32

Returns: An integer which is the index of the currently active item, or -1 if there’s no active item

Returns the index of the currently active item.

If the model is a non-flat treemodel, and the active item is not an immediate child of the root of the tree, this function returns gtk_tree_path_get_indices (path)[0], where path is the [structgtk.TreePath] of the active item.

getActiveId

comboBoxGetActiveId

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> m (Maybe Text)

Returns: the ID of the active row

Returns the ID of the active row of comboBox.

This value is taken from the active row and the column specified by the ComboBox:idColumn property of comboBox (see comboBoxSetIdColumn).

The returned value is an interned string which means that you can compare the pointer by value to other interned strings and that you must not free it.

If the ComboBox:idColumn property of comboBox is not set, or if no row is active, or if the active row has a Nothing ID value, then Nothing is returned.

getActiveIter

comboBoxGetActiveIter

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: A GtkComboBox

-> m (Bool, TreeIter)

Returns: True if iter was set, False otherwise

Sets iter to point to the currently active item.

If no item is active, iter is left unchanged.

getButtonSensitivity

comboBoxGetButtonSensitivity

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> m SensitivityType

Returns: SensitivityTypeOn if the dropdown button is sensitive when the model is empty, SensitivityTypeOff if the button is always insensitive or SensitivityTypeAuto if it is only sensitive as long as the model has one item to be selected.

Returns whether the combo box sets the dropdown button sensitive or not when there are no items in the model.

getChild

comboBoxGetChild

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> m (Maybe Widget)

Returns: the child widget of comboBox

Gets the child widget of comboBox.

getEntryTextColumn

comboBoxGetEntryTextColumn

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: A GtkComboBox

-> m Int32

Returns: A column in the data source model of comboBox.

Returns the column which comboBox is using to get the strings from to display in the internal entry.

getHasEntry

comboBoxGetHasEntry

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> m Bool

Returns: whether there is an entry in comboBox.

Returns whether the combo box has an entry.

getIdColumn

comboBoxGetIdColumn

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: A GtkComboBox

-> m Int32

Returns: A column in the data source model of comboBox.

Returns the column which comboBox is using to get string IDs for values from.

getModel

comboBoxGetModel

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: A GtkComboBox

-> m (Maybe TreeModel)

Returns: A GtkTreeModel which was passed during construction.

Returns the GtkTreeModel of comboBox.

getPopupFixedWidth

comboBoxGetPopupFixedWidth

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> m Bool

Returns: True if the popup uses a fixed width

Gets whether the popup uses a fixed width.

new

comboBoxNew

Arguments

:: (HasCallStack, MonadIO m)

=> m ComboBox

Returns: A new GtkComboBox

Creates a new empty GtkComboBox.

newWithEntry

comboBoxNewWithEntry

Arguments

:: (HasCallStack, MonadIO m)

=> m ComboBox

Returns: A new GtkComboBox

Creates a new empty GtkComboBox with an entry.

In order to use a combo box with entry, you need to tell it which column of the model contains the text for the entry by calling comboBoxSetEntryTextColumn.

newWithModel

comboBoxNewWithModel

Arguments

:: (HasCallStack, MonadIO m, IsTreeModel a)

=> a

model: a GtkTreeModel

-> m ComboBox

Returns: A new GtkComboBox

Creates a new GtkComboBox with a model.

newWithModelAndEntry

comboBoxNewWithModelAndEntry

Arguments

:: (HasCallStack, MonadIO m, IsTreeModel a)

=> a

model: A GtkTreeModel

-> m ComboBox

Returns: A new GtkComboBox

Creates a new empty GtkComboBox with an entry and a model.

See also comboBoxNewWithEntry.

popdown

comboBoxPopdown

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> m ()

Hides the menu or dropdown list of comboBox.

This function is mostly intended for use by accessibility technologies; applications should have little use for it.

popup

comboBoxPopup

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> m ()

Pops up the menu or dropdown list of comboBox.

This function is mostly intended for use by accessibility technologies; applications should have little use for it.

Before calling this, comboBox must be mapped, or nothing will happen.

popupForDevice

comboBoxPopupForDevice

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a, IsDevice b)

=> a

comboBox: a GtkComboBox

-> b

device: a GdkDevice

-> m ()

Pops up the menu of comboBox.

Note that currently this does not do anything with the device, as it was previously only used for list-mode combo boxes, and those were removed in GTK 4. However, it is retained in case similar functionality is added back later.

setActive

comboBoxSetActive

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> Int32

index_: An index in the model passed during construction, or -1 to have no active item

-> m ()

Sets the active item of comboBox to be the item at index.

setActiveId

comboBoxSetActiveId

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> Maybe Text

activeId: the ID of the row to select

-> m Bool

Returns: True if a row with a matching ID was found. If a Nothing activeId was given to unset the active row, the function always returns True.

Changes the active row of comboBox to the one that has an ID equal to activeId.

If activeId is Nothing, the active row is unset. Rows having a Nothing ID string cannot be made active by this function.

If the ComboBox:idColumn property of comboBox is unset or if no row has the given ID then the function does nothing and returns False.

setActiveIter

comboBoxSetActiveIter

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: A GtkComboBox

-> Maybe TreeIter

iter: The GtkTreeIter

-> m ()

Sets the current active item to be the one referenced by iter.

If iter is Nothing, the active item is unset.

setButtonSensitivity

comboBoxSetButtonSensitivity

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> SensitivityType

sensitivity: specify the sensitivity of the dropdown button

-> m ()

Sets whether the dropdown button of the combo box should update its sensitivity depending on the model contents.

setChild

comboBoxSetChild

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a, IsWidget b)

=> a

comboBox: a GtkComboBox

-> Maybe b

child: the child widget

-> m ()

Sets the child widget of comboBox.

setEntryTextColumn

comboBoxSetEntryTextColumn

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: A GtkComboBox

-> Int32

textColumn: A column in model to get the strings from for the internal entry

-> m ()

Sets the model column which comboBox should use to get strings from to be textColumn.

For this column no separate CellRenderer is needed.

The column textColumn in the model of comboBox must be of type G_TYPE_STRING.

This is only relevant if comboBox has been created with ComboBox:hasEntry as True.

setIdColumn

comboBoxSetIdColumn

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: A GtkComboBox

-> Int32

idColumn: A column in model to get string IDs for values from

-> m ()

Sets the model column which comboBox should use to get string IDs for values from.

The column idColumn in the model of comboBox must be of type G_TYPE_STRING.

setModel

comboBoxSetModel

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a, IsTreeModel b)

=> a

comboBox: A GtkComboBox

-> Maybe b

model: A GtkTreeModel

-> m ()

Sets the model used by comboBox to be model.

Will unset a previously set model (if applicable). If model is Nothing, then it will unset the model.

Note that this function does not clear the cell renderers, you have to call cellLayoutClear yourself if you need to set up different cell renderers for the new model.

setPopupFixedWidth

comboBoxSetPopupFixedWidth

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> Bool

fixed: whether to use a fixed popup width

-> m ()

Specifies whether the popup’s width should be a fixed width.

If fixed is True, the popup's width is set to match the allocated width of the combo box.

setRowSeparatorFunc

comboBoxSetRowSeparatorFunc

Arguments

:: (HasCallStack, MonadIO m, IsComboBox a)

=> a

comboBox: a GtkComboBox

-> Maybe TreeViewRowSeparatorFunc

func: a GtkTreeViewRowSeparatorFunc

-> m ()

Sets the row separator function, which is used to determine whether a row should be drawn as a separator.

If the row separator function is Nothing, no separators are drawn. This is the default value.

Properties

active

The item which is currently active.

If the model is a non-flat treemodel, and the active item is not an immediate child of the root of the tree, this property has the value gtk_tree_path_get_indices (path)[0], where path is the [structgtk.TreePath] of the active item.

constructComboBoxActive :: (IsComboBox o, MonadIO m) => Int32 -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “active” property. This is rarely needed directly, but it is used by new.

getComboBoxActive :: (MonadIO m, IsComboBox o) => o -> m Int32

Get the value of the “active” property. When overloading is enabled, this is equivalent to

get comboBox #active

setComboBoxActive :: (MonadIO m, IsComboBox o) => o -> Int32 -> m ()

Set the value of the “active” property. When overloading is enabled, this is equivalent to

set comboBox [ #active := value ]

activeId

The value of the ID column of the active row.

clearComboBoxActiveId :: (MonadIO m, IsComboBox o) => o -> m ()

Set the value of the “active-id” property to Nothing. When overloading is enabled, this is equivalent to

clear #activeId

constructComboBoxActiveId :: (IsComboBox o, MonadIO m) => Text -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “active-id” property. This is rarely needed directly, but it is used by new.

getComboBoxActiveId :: (MonadIO m, IsComboBox o) => o -> m (Maybe Text)

Get the value of the “active-id” property. When overloading is enabled, this is equivalent to

get comboBox #activeId

setComboBoxActiveId :: (MonadIO m, IsComboBox o) => o -> Text -> m ()

Set the value of the “active-id” property. When overloading is enabled, this is equivalent to

set comboBox [ #activeId := value ]

buttonSensitivity

Whether the dropdown button is sensitive when the model is empty.

constructComboBoxButtonSensitivity :: (IsComboBox o, MonadIO m) => SensitivityType -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “button-sensitivity” property. This is rarely needed directly, but it is used by new.

getComboBoxButtonSensitivity :: (MonadIO m, IsComboBox o) => o -> m SensitivityType

Get the value of the “button-sensitivity” property. When overloading is enabled, this is equivalent to

get comboBox #buttonSensitivity

setComboBoxButtonSensitivity :: (MonadIO m, IsComboBox o) => o -> SensitivityType -> m ()

Set the value of the “button-sensitivity” property. When overloading is enabled, this is equivalent to

set comboBox [ #buttonSensitivity := value ]

child

The child widget.

clearComboBoxChild :: (MonadIO m, IsComboBox o) => o -> m ()

Set the value of the “child” property to Nothing. When overloading is enabled, this is equivalent to

clear #child

constructComboBoxChild :: (IsComboBox o, MonadIO m, IsWidget a) => a -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “child” property. This is rarely needed directly, but it is used by new.

getComboBoxChild :: (MonadIO m, IsComboBox o) => o -> m (Maybe Widget)

Get the value of the “child” property. When overloading is enabled, this is equivalent to

get comboBox #child

setComboBoxChild :: (MonadIO m, IsComboBox o, IsWidget a) => o -> a -> m ()

Set the value of the “child” property. When overloading is enabled, this is equivalent to

set comboBox [ #child := value ]

entryTextColumn

The model column to associate with strings from the entry.

This is property only relevant if the combo was created with ComboBox:hasEntry is True.

constructComboBoxEntryTextColumn :: (IsComboBox o, MonadIO m) => Int32 -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “entry-text-column” property. This is rarely needed directly, but it is used by new.

getComboBoxEntryTextColumn :: (MonadIO m, IsComboBox o) => o -> m Int32

Get the value of the “entry-text-column” property. When overloading is enabled, this is equivalent to

get comboBox #entryTextColumn

setComboBoxEntryTextColumn :: (MonadIO m, IsComboBox o) => o -> Int32 -> m ()

Set the value of the “entry-text-column” property. When overloading is enabled, this is equivalent to

set comboBox [ #entryTextColumn := value ]

hasEntry

Whether the combo box has an entry.

constructComboBoxHasEntry :: (IsComboBox o, MonadIO m) => Bool -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “has-entry” property. This is rarely needed directly, but it is used by new.

getComboBoxHasEntry :: (MonadIO m, IsComboBox o) => o -> m Bool

Get the value of the “has-entry” property. When overloading is enabled, this is equivalent to

get comboBox #hasEntry

hasFrame

The has-frame property controls whether a frame is drawn around the entry.

constructComboBoxHasFrame :: (IsComboBox o, MonadIO m) => Bool -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “has-frame” property. This is rarely needed directly, but it is used by new.

getComboBoxHasFrame :: (MonadIO m, IsComboBox o) => o -> m Bool

Get the value of the “has-frame” property. When overloading is enabled, this is equivalent to

get comboBox #hasFrame

setComboBoxHasFrame :: (MonadIO m, IsComboBox o) => o -> Bool -> m ()

Set the value of the “has-frame” property. When overloading is enabled, this is equivalent to

set comboBox [ #hasFrame := value ]

idColumn

The model column that provides string IDs for the values in the model, if != -1.

constructComboBoxIdColumn :: (IsComboBox o, MonadIO m) => Int32 -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “id-column” property. This is rarely needed directly, but it is used by new.

getComboBoxIdColumn :: (MonadIO m, IsComboBox o) => o -> m Int32

Get the value of the “id-column” property. When overloading is enabled, this is equivalent to

get comboBox #idColumn

setComboBoxIdColumn :: (MonadIO m, IsComboBox o) => o -> Int32 -> m ()

Set the value of the “id-column” property. When overloading is enabled, this is equivalent to

set comboBox [ #idColumn := value ]

model

The model from which the combo box takes its values.

clearComboBoxModel :: (MonadIO m, IsComboBox o) => o -> m ()

Set the value of the “model” property to Nothing. When overloading is enabled, this is equivalent to

clear #model

constructComboBoxModel :: (IsComboBox o, MonadIO m, IsTreeModel a) => a -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “model” property. This is rarely needed directly, but it is used by new.

getComboBoxModel :: (MonadIO m, IsComboBox o) => o -> m (Maybe TreeModel)

Get the value of the “model” property. When overloading is enabled, this is equivalent to

get comboBox #model

setComboBoxModel :: (MonadIO m, IsComboBox o, IsTreeModel a) => o -> a -> m ()

Set the value of the “model” property. When overloading is enabled, this is equivalent to

set comboBox [ #model := value ]

popupFixedWidth

Whether the popup's width should be a fixed width matching the allocated width of the combo box.

constructComboBoxPopupFixedWidth :: (IsComboBox o, MonadIO m) => Bool -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “popup-fixed-width” property. This is rarely needed directly, but it is used by new.

getComboBoxPopupFixedWidth :: (MonadIO m, IsComboBox o) => o -> m Bool

Get the value of the “popup-fixed-width” property. When overloading is enabled, this is equivalent to

get comboBox #popupFixedWidth

setComboBoxPopupFixedWidth :: (MonadIO m, IsComboBox o) => o -> Bool -> m ()

Set the value of the “popup-fixed-width” property. When overloading is enabled, this is equivalent to

set comboBox [ #popupFixedWidth := value ]

popupShown

Whether the combo boxes dropdown is popped up.

Note that this property is mainly useful, because it allows you to connect to notifypopupShown.

getComboBoxPopupShown :: (MonadIO m, IsComboBox o) => o -> m Bool

Get the value of the “popup-shown” property. When overloading is enabled, this is equivalent to

get comboBox #popupShown

Signals

activate

type ComboBoxActivateCallback = IO ()

Emitted to when the combo box is activated.

The ::activate signal on GtkComboBox is an action signal and emitting it causes the combo box to pop up its dropdown.

Since: 4.6

afterComboBoxActivate :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxActivateCallback) -> m SignalHandlerId

Connect a signal handler for the activate signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after comboBox #activate callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onComboBoxActivate :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxActivateCallback) -> m SignalHandlerId

Connect a signal handler for the activate signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on comboBox #activate callback

changed

type ComboBoxChangedCallback = IO ()

Emitted when the active item is changed.

The can be due to the user selecting a different item from the list, or due to a call to comboBoxSetActiveIter. It will also be emitted while typing into the entry of a combo box with an entry.

afterComboBoxChanged :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxChangedCallback) -> m SignalHandlerId

Connect a signal handler for the changed signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after comboBox #changed callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onComboBoxChanged :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxChangedCallback) -> m SignalHandlerId

Connect a signal handler for the changed signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on comboBox #changed callback

formatEntryText

type ComboBoxFormatEntryTextCallback

Arguments

 = Text

path: the [structgtk.TreePath] string from the combo box's current model to format text for

-> IO Text

Returns: a newly allocated string representing path for the current GtkComboBox model.

Emitted to allow changing how the text in a combo box's entry is displayed.

See ComboBox:hasEntry.

Connect a signal handler which returns an allocated string representing path. That string will then be used to set the text in the combo box's entry. The default signal handler uses the text from the ComboBox:entryTextColumn model column.

Here's an example signal handler which fetches data from the model and displays it in the entry.

c code

static char *
format_entry_text_callback (GtkComboBox *combo,
                            const char *path,
                            gpointer     user_data)
{
  GtkTreeIter iter;
  GtkTreeModel model;
  double       value;

  model = gtk_combo_box_get_model (combo);

  gtk_tree_model_get_iter_from_string (model, &iter, path);
  gtk_tree_model_get (model, &iter,
                      THE_DOUBLE_VALUE_COLUMN, &value,
                      -1);

  return g_strdup_printf ("%g", value);
}

afterComboBoxFormatEntryText :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxFormatEntryTextCallback) -> m SignalHandlerId

Connect a signal handler for the formatEntryText signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after comboBox #formatEntryText callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onComboBoxFormatEntryText :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxFormatEntryTextCallback) -> m SignalHandlerId

Connect a signal handler for the formatEntryText signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on comboBox #formatEntryText callback

moveActive

type ComboBoxMoveActiveCallback

Arguments

 = ScrollType

scrollType: a GtkScrollType

-> IO ()

Emitted to move the active selection.

This is an keybinding signal.

afterComboBoxMoveActive :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxMoveActiveCallback) -> m SignalHandlerId

Connect a signal handler for the moveActive signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after comboBox #moveActive callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onComboBoxMoveActive :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxMoveActiveCallback) -> m SignalHandlerId

Connect a signal handler for the moveActive signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on comboBox #moveActive callback

popdown

type ComboBoxPopdownCallback = IO Bool

Emitted to popdown the combo box list.

This is an keybinding signal.

The default bindings for this signal are Alt+Up and Escape.

afterComboBoxPopdown :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxPopdownCallback) -> m SignalHandlerId

Connect a signal handler for the popdown signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after comboBox #popdown callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onComboBoxPopdown :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxPopdownCallback) -> m SignalHandlerId

Connect a signal handler for the popdown signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on comboBox #popdown callback

popup

type ComboBoxPopupCallback = IO ()

Emitted to popup the combo box list.

This is an keybinding signal.

The default binding for this signal is Alt+Down.

afterComboBoxPopup :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxPopupCallback) -> m SignalHandlerId

Connect a signal handler for the popup signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after comboBox #popup callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onComboBoxPopup :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxPopupCallback) -> m SignalHandlerId

Connect a signal handler for the popup signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on comboBox #popup callback