gtk-0.12.0: Binding to the Gtk+ graphical user interface library.

Portability | portable (depends on GHC)
Stability | provisional
Maintainer | gtk2hs-users@lists.sourceforge.net

Graphics.UI.Gtk.Display.StatusIcon

Contents

- Detail
- Class Hierarchy
- Types
- Constructors
- Methods
- Attributes
- Signals
- Deprecated

Description

Display an icon in the system tray

- Module available since Gtk+ version 2.10

Synopsis

- data StatusIcon
- class TooltipClass o => StatusIconClass o
- castToStatusIcon :: GObjectClass obj => obj -> StatusIcon
- gTypeStatusIcon :: GType
- toStatusIcon :: StatusIconClass o => o -> StatusIcon
- statusIconNew :: IO StatusIcon
- statusIconNewFromPixbuf :: Pixbuf -> IO StatusIcon
- statusIconNewFromFile :: String -> IO StatusIcon
- statusIconNewFromStock :: StockId -> IO StatusIcon
- statusIconNewFromIconName :: String -> IO StatusIcon
- statusIconSetFromPixbuf :: StatusIconClass self => self -> Pixbuf -> IO ()
- statusIconSetFromFile :: StatusIconClass self => self -> String -> IO ()
- statusIconSetFromStock :: StatusIconClass self => self -> StockId -> IO ()
- statusIconSetFromIconName :: StatusIconClass self => self -> String -> IO ()
- statusIconGetStorageType :: StatusIconClass self => self -> IO ImageType
- statusIconGetPixbuf :: StatusIconClass self => self -> IO (Maybe Pixbuf)
- statusIconGetStock :: StatusIconClass self => self -> IO (Maybe StockId)
- statusIconGetIconName :: StatusIconClass self => self -> IO (Maybe String)
- statusIconGetSize :: StatusIconClass self => self -> IO Int
- statusIconSetTooltip :: StatusIconClass self => self -> String -> IO ()
- statusIconSetVisible :: StatusIconClass self => self -> Bool -> IO ()
- statusIconGetVisible :: StatusIconClass self => self -> IO Bool
- statusIconSetBlinking :: StatusIconClass self => self -> Bool -> IO ()
- statusIconGetBlinking :: StatusIconClass self => self -> IO Bool
- statusIconIsEmbedded :: StatusIconClass self => self -> IO Bool
- statusIconPositionMenu :: (MenuClass menu, StatusIconClass self) => menu -> self -> IO (Int, Int, Bool)
- statusIconGetGeometry :: StatusIconClass self => self -> IO (Maybe (Rectangle, Orientation))
- statusIconSetName :: StatusIconClass self => self -> String -> IO ()
- statusIconPixbuf :: StatusIconClass self => Attr self Pixbuf
- statusIconFile :: StatusIconClass self => WriteAttr self (Maybe String)
- statusIconStock :: StatusIconClass self => Attr self (Maybe String)
- statusIconIconName :: StatusIconClass self => Attr self (Maybe String)
- statusIconStorageType :: StatusIconClass self => ReadAttr self ImageType
- statusIconSize :: StatusIconClass self => ReadAttr self Int
- statusIconBlinking :: StatusIconClass self => Attr self Bool
- statusIconVisible :: StatusIconClass self => Attr self Bool
- statusIconSizeChanged :: StatusIconClass self => Signal self (Int -> IO Bool)
- statusIconActivate :: StatusIconClass self => Signal self (IO ())
- statusIconPopupMenu :: StatusIconClass self => Signal self (Maybe MouseButton -> TimeStamp -> IO ())
- onActivate :: StatusIconClass self => self -> IO () -> IO (ConnectId self)
- afterActivate :: StatusIconClass self => self -> IO () -> IO (ConnectId self)
- onPopupMenu :: StatusIconClass self => self -> (Maybe MouseButton -> TimeStamp -> IO ()) -> IO (ConnectId self)
- afterPopupMenu :: StatusIconClass self => self -> (Maybe MouseButton -> TimeStamp -> IO ()) -> IO (ConnectId self)
- onSizeChanged :: StatusIconClass self => self -> (Int -> IO Bool) -> IO (ConnectId self)
- afterSizeChanged :: StatusIconClass self => self -> (Int -> IO Bool) -> IO (ConnectId self)

# Detail

The "system tray" or notification area is normally used for transient icons that indicate some special state. For example, a system tray icon might appear to tell the user that they have new mail, or have an incoming instant message, or something along those lines. The basic idea is that creating an icon in the notification area is less annoying than popping up a dialog.

A `StatusIcon` object can be used to display an icon in a "system tray". The icon can have a tooltip, and the user can interact with it by activating it or popping up a context menu. Critical information should not solely be displayed in a `StatusIcon`, since it may not be visible (e.g. when the user doesn't have a notification area on his panel). This can be checked with `statusIconIsEmbedded`.

On X11, the implementation follows the freedesktop.org "System Tray" specification. Implementations of the "tray" side of this specification can be found e.g. in the GNOME and KDE panel applications.

Note that a `StatusIcon` is not a widget, but just a `GObject`. Making it a widget would be impractical, since the system tray on Win32 doesn't allow to embed arbitrary widgets.

# Class Hierarchy

     | GObject
     | +----StatusIcon

# Types

data StatusIcon

Instances

Eq StatusIcon |
Ord StatusIcon |
GObjectClass StatusIcon |
StatusIconClass StatusIcon |
TooltipClass StatusIcon |

class TooltipClass o => StatusIconClass o

Instances

StatusIconClass StatusIcon |

castToStatusIcon :: GObjectClass obj => obj -> StatusIcon

gTypeStatusIcon :: GType

toStatusIcon :: StatusIconClass o => o -> StatusIcon

# Constructors

statusIconNew :: IO StatusIcon

Creates an empty status icon object.

statusIconNewFromPixbuf

Arguments

:: Pixbuf | `pixbuf` - a `Pixbuf`
-> IO StatusIcon |

Creates a status icon displaying `pixbuf`.

The image will be scaled down to fit in the available space in the notification area, if necessary.

statusIconNewFromFile

Arguments

:: String | `filename` - a filename
-> IO StatusIcon |

Creates a status icon displaying the file `filename`.

The image will be scaled down to fit in the available space in the notification area, if necessary.

statusIconNewFromStock

Arguments

:: StockId | `stockId` - a stock icon id
-> IO StatusIcon |

statusIconNewFromIconName

Arguments

:: String | `iconName` - an icon name
-> IO StatusIcon |

Creates a status icon displaying an icon from the current icon theme. If the current icon theme is changed, the icon will be updated appropriately.

# Methods

statusIconSetFromPixbuf

Arguments

:: StatusIconClass self |
=> self |
-> Pixbuf | `pixbuf` - a `Pixbuf`
-> IO () |

Makes `statusIcon` display `pixbuf`. See `statusIconNewFromPixbuf` for details.

statusIconSetFromFile

Arguments

:: StatusIconClass self |
=> self |
-> String | `filename` - a filename
-> IO () |

Makes `statusIcon` display the file `filename`. See `statusIconNewFromFile` for details.

statusIconSetFromStock

Arguments

:: StatusIconClass self |
=> self |
-> StockId | `stockId` - a stock icon id
-> IO () |

Makes `statusIcon` display the stock icon with the id `stockId`. See `statusIconNewFromStock` for details.

statusIconSetFromIconName

Arguments

:: StatusIconClass self |
=> self |
-> String | `iconName` - an icon name
-> IO () |

Makes `statusIcon` display the icon named `iconName` from the current icon theme. See `statusIconNewFromIconName` for details.

statusIconGetStorageType

Arguments

:: StatusIconClass self |
=> self |
-> IO ImageType | returns the image representation being used

Gets the type of representation being used by the `StatusIcon` to store image data. If the `StatusIcon` has no image data, the return value will be `Graphics.UI.Gtk.Display.Image.ImageEmpty`.

statusIconGetPixbuf

Arguments

:: StatusIconClass self |
=> self |
-> IO (Maybe Pixbuf) | returns the displayed pixbuf, or `Nothing` if the image is empty.

statusIconGetStock

Arguments

:: StatusIconClass self |
=> self |
-> IO (Maybe StockId) | returns stock id of the displayed stock icon, or `Nothing` if the image is empty.

statusIconGetIconName

Arguments

:: StatusIconClass self |
=> self |
-> IO (Maybe String) | returns name of the displayed icon, or `Nothing` if the image is empty.

statusIconGetSize

Arguments

:: StatusIconClass self |
=> self |
-> IO Int | returns the size that is available for the image

Gets the size in pixels that is available for the image. Stock icons and named icons adapt their size automatically if the size of the notification area changes. For other storage types, the `sizeChanged` signal can be used to react to size changes.

statusIconSetTooltip

Arguments

:: StatusIconClass self |
=> self |
-> String | `tooltipText` - the tooltip text
-> IO () |

Sets the tooltip of the status icon.

statusIconSetVisible

Arguments

:: StatusIconClass self |
=> self |
-> Bool | `visible` - `True` to show the status icon, `False` to hide it
-> IO () |

Shows or hides a status icon.

statusIconGetVisible

Arguments

:: StatusIconClass self |
=> self |
-> IO Bool | returns `True` if the status icon is visible

Returns whether the status icon is visible or not. Note that being visible does not guarantee that the user can actually see the icon, see also `statusIconIsEmbedded`.

statusIconSetBlinking

Arguments

:: StatusIconClass self |
=> self |
-> Bool | `blinking` - `True` to turn blinking on, `False` to turn it off
-> IO () |

Makes the status icon start or stop blinking. Note that blinking user interface elements may be problematic for some users, and thus may be turned off, in which case this setting has no effect.

statusIconGetBlinking

Arguments

:: StatusIconClass self |
=> self |
-> IO Bool | returns `True` if the icon is blinking

Returns whether the icon is blinking, see `statusIconSetBlinking`.

statusIconIsEmbedded

Arguments

:: StatusIconClass self |
=> self |
-> IO Bool | returns `True` if the status icon is embedded in a notification area.

Returns whether the status icon is embedded in a notification area.

statusIconPositionMenu

Arguments

:: (MenuClass menu, StatusIconClass self) |
=> menu | `menu` - the `Menu`
-> self | `userData` - the status icon to position the menu on
-> IO (Int, Int, Bool) | `(x,y,pushIn)` - `(x,y)` - coordinates. `pushIn` - whether the menu should be pushed in to be completely inside the screen instead of just clamped to the size to the screen.

Menu positioning function to use with `menuPopup` to position `menu` aligned to the status icon `userData`.

statusIconGetGeometry :: StatusIconClass self => self -> IO (Maybe (Rectangle, Orientation))

Obtains information about the location of the status icon on screen. This information can be used to e.g. position popups like notification bubbles.

Note that some platforms do not allow Gtk+ to provide this information, and even on platforms that do allow it, the information is not reliable unless the status icon is embedded in a notification area, see `statusIconIsEmbedded`.

statusIconSetName :: StatusIconClass self => self -> String -> IO ()

Sets the name of this tray icon. This should be a string identifying this icon. It is may be used for sorting the icons in the tray and will not be shown to the user.

# Attributes

statusIconPixbuf :: StatusIconClass self => Attr self Pixbuf

A `Pixbuf` to display.

statusIconFile :: StatusIconClass self => WriteAttr self (Maybe String)

Filename to load and display.

Default value: `Nothing`

statusIconStock :: StatusIconClass self => Attr self (Maybe String)

Stock ID for a stock image to display.

Default value: `Nothing`

statusIconIconName :: StatusIconClass self => Attr self (Maybe String)

The name of the icon from the icon theme.

Default value: `Nothing`

statusIconStorageType :: StatusIconClass self => ReadAttr self ImageType

The representation being used for image data.

Default value: `Graphics.UI.Gtk.Display.Image.ImageEmpty`

statusIconSize :: StatusIconClass self => ReadAttr self Int

The size of the icon.

Allowed values: >= 0

Default value: 0

statusIconBlinking :: StatusIconClass self => Attr self Bool

Whether or not the status icon is blinking.

Default value: `False`

statusIconVisible :: StatusIconClass self => Attr self Bool

Whether or not the status icon is visible.

Default value: `True`

# Signals

statusIconSizeChanged :: StatusIconClass self => Signal self (Int -> IO Bool)

Gets emitted when the size available for the image changes, e.g. because the notification area got resized.

statusIconActivate :: StatusIconClass self => Signal self (IO ())

Gets emitted when the user activates the status icon. If and how status icons can activated is platform-dependent.

statusIconPopupMenu :: StatusIconClass self => Signal self (Maybe MouseButton -> TimeStamp -> IO ())

Gets emitted when the user brings up the context menu of the status icon. Whether status icons can have context menus and how these are activated is platform-dependent.

The `MouseButton` and `TimeStamp` parameters should be passed as the last to arguments to `Graphics.UI.Gtk.menuPopup`.

# Deprecated

onActivate :: StatusIconClass self => self -> IO () -> IO (ConnectId self)

afterActivate :: StatusIconClass self => self -> IO () -> IO (ConnectId self)

onPopupMenu :: StatusIconClass self => self -> (Maybe MouseButton -> TimeStamp -> IO ()) -> IO (ConnectId self)

afterPopupMenu :: StatusIconClass self => self -> (Maybe MouseButton -> TimeStamp -> IO ()) -> IO (ConnectId self)

onSizeChanged :: StatusIconClass self => self -> (Int -> IO Bool) -> IO (ConnectId self)

afterSizeChanged :: StatusIconClass self => self -> (Int -> IO Bool) -> IO (ConnectId self)