    {-# LINE 2 "./Graphics/UI/Gtk/Abstract/Scale.chs" #-}
    -- -*-haskell-*-
    -- GIMP Toolkit (GTK) Widget Scale
    --
    -- Author : Axel Simon
    --
    -- Created: 23 May 2001
    --
    -- Copyright (C) 1999-2005 Axel Simon
    --
    -- This library is free software; you can redistribute it and/or
    -- modify it under the terms of the GNU Lesser General Public
    -- License as published by the Free Software Foundation; either
    -- version 2.1 of the License, or (at your option) any later version.
    --
    -- This library is distributed in the hope that it will be useful,
    -- but WITHOUT ANY WARRANTY; without even the implied warranty of
    -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    -- Lesser General Public License for more details.
    --
    -- |
    -- Maintainer : gtk2hs-users@lists.sourceforge.net
    -- Stability : provisional
    -- Portability : portable (depends on GHC)
    --
    -- Base class for 'HScale' and 'VScale'
    --
    module Graphics.UI.Gtk.Abstract.Scale (
    -- * Detail
    --
    -- | A 'Scale' is a slider control used to select a numeric value. To use it,
    -- you'll probably want to investigate the methods on its base class, 'Range',
    -- in addition to the methods for 'Scale' itself. To set the value of a scale,
    -- you would normally use 'Graphics.UI.Gtk.Abstract.Range.rangeSetValue'.
    -- To detect changes to the value, you would normally use the
    -- 'Graphics.UI.Gtk.Abstract.Range.onRangeValueChanged' signal.
    --
    -- The 'Scale' widget is an abstract class, used only for deriving the
    -- subclasses 'HScale' and 'VScale'. To create a scale widget, call
    -- 'Graphics.UI.Gtk.Entry.HScale.hScaleNewWithRange' or
    -- 'Graphics.UI.Gtk.Entry.VScale.vScaleNewWithRange'.
    --

    -- * Class Hierarchy
    -- |
    -- @
    -- | 'GObject'
    -- | +----'Object'
    -- | +----'Widget'
    -- | +----'Range'
    -- | +----Scale
    -- | +----'HScale'
    -- | +----'VScale'
    -- @

    -- * Types
      Scale,
      ScaleClass,
      castToScale, gTypeScale,
      toScale,

    -- * Methods
      scaleSetDigits,
      scaleGetDigits,
      scaleSetDrawValue,
      scaleGetDrawValue,
      PositionType(..),
      scaleSetValuePos,
      scaleGetValuePos,

    -- * Attributes
      scaleDigits,
      scaleDrawValue,
      scaleValuePos,
      ) where

    import Control.Monad (liftM)

    import System.Glib.FFI
    import System.Glib.Attributes
    import Graphics.UI.Gtk.Types
    {-# LINE 82 "./Graphics/UI/Gtk/Abstract/Scale.chs" #-}
    import Graphics.UI.Gtk.General.Enums (PositionType(..))

    {-# LINE 85 "./Graphics/UI/Gtk/Abstract/Scale.chs" #-}

    --------------------
    -- Methods

    -- | Sets the number of decimal places that are displayed in the value. Also
    -- causes the value of the adjustment to be rounded off to this number of
    -- digits, so the retrieved value matches the value the user saw.
    --
    scaleSetDigits :: ScaleClass self => self
     -> Int -- ^ @digits@ - the number of decimal places to display, e.g. use 1
              -- to display 1.0, 2 to display 1.00 etc.
     -> IO ()
    scaleSetDigits :: forall self. ScaleClass self => self -> Int -> IO ()
    scaleSetDigits self
    self Int
    digits =
      (\(Scale ForeignPtr Scale
    arg1) CInt
    arg2 -> ForeignPtr Scale -> (Ptr Scale -> IO ()) -> IO ()
    forall a b. ForeignPtr a -> (Ptr a -> IO b) -> IO b
    withForeignPtr ForeignPtr Scale
    arg1 ((Ptr Scale -> IO ()) -> IO ()) -> (Ptr Scale -> IO ()) -> IO ()
    forall a b. (a -> b) -> a -> b
    $ \Ptr Scale
    argPtr1 ->Ptr Scale -> CInt -> IO ()
    gtk_scale_set_digits Ptr Scale
    argPtr1 CInt
    arg2)
    {-# LINE 99 "./Graphics/UI/Gtk/Abstract/Scale.chs" #-}
        (toScale self)
        (Int -> CInt
    forall a b. (Integral a, Num b) => a -> b
    fromIntegral Int
    digits)

    -- | Gets the number of decimal places that are displayed in the value.
    --
    scaleGetDigits :: ScaleClass self => self
     -> IO Int -- ^ returns the number of decimal places that are displayed.
    scaleGetDigits :: forall self. ScaleClass self => self -> IO Int
    scaleGetDigits self
    self =
      (CInt -> Int) -> IO CInt -> IO Int
    forall (m :: * -> *) a1 r. Monad m => (a1 -> r) -> m a1 -> m r
    liftM CInt -> Int
    forall a b. (Integral a, Num b) => a -> b
    fromIntegral (IO CInt -> IO Int) -> IO CInt -> IO Int
    forall a b. (a -> b) -> a -> b
    $
      (\(Scale ForeignPtr Scale
    arg1) -> ForeignPtr Scale -> (Ptr Scale -> IO CInt) -> IO CInt
    forall a b. ForeignPtr a -> (Ptr a -> IO b) -> IO b
    withForeignPtr ForeignPtr Scale
    arg1 ((Ptr Scale -> IO CInt) -> IO CInt)
    -> (Ptr Scale -> IO CInt) -> IO CInt
    forall a b. (a -> b) -> a -> b
    $ \Ptr Scale
    argPtr1 ->Ptr Scale -> IO CInt
    gtk_scale_get_digits Ptr Scale
    argPtr1)
    {-# LINE 109 "./Graphics/UI/Gtk/Abstract/Scale.chs" #-}
        (toScale self)

    -- | Specifies whether the current value is displayed as a string next to the
    -- slider.
    --
    scaleSetDrawValue :: ScaleClass self => self
     -> Bool -- ^ @drawValue@ - a boolean.
     -> IO ()
    scaleSetDrawValue :: forall self. ScaleClass self => self -> Bool -> IO ()
    scaleSetDrawValue self
    self Bool
    drawValue =
      (\(Scale ForeignPtr Scale
    arg1) CInt
    arg2 -> ForeignPtr Scale -> (Ptr Scale -> IO ()) -> IO ()
    forall a b. ForeignPtr a -> (Ptr a -> IO b) -> IO b
    withForeignPtr ForeignPtr Scale
    arg1 ((Ptr Scale -> IO ()) -> IO ()) -> (Ptr Scale -> IO ()) -> IO ()
    forall a b. (a -> b) -> a -> b
    $ \Ptr Scale
    argPtr1 ->Ptr Scale -> CInt -> IO ()
    gtk_scale_set_draw_value Ptr Scale
    argPtr1 CInt
    arg2)
    {-# LINE 119 "./Graphics/UI/Gtk/Abstract/Scale.chs" #-}
        (toScale self)
        (Bool -> CInt
    forall a. Num a => Bool -> a
    fromBool Bool
    drawValue)

    -- | Returns whether the current value is displayed as a string next to the
    -- slider.
    --
    scaleGetDrawValue :: ScaleClass self => self
     -> IO Bool -- ^ returns whether the current value is displayed as a string.
    scaleGetDrawValue :: forall self. ScaleClass self => self -> IO Bool
    scaleGetDrawValue self
    self =
      (CInt -> Bool) -> IO CInt -> IO Bool
    forall (m :: * -> *) a1 r. Monad m => (a1 -> r) -> m a1 -> m r
    liftM CInt -> Bool
    forall a. (Eq a, Num a) => a -> Bool
    toBool (IO CInt -> IO Bool) -> IO CInt -> IO Bool
    forall a b. (a -> b) -> a -> b
    $
      (\(Scale ForeignPtr Scale
    arg1) -> ForeignPtr Scale -> (Ptr Scale -> IO CInt) -> IO CInt
    forall a b. ForeignPtr a -> (Ptr a -> IO b) -> IO b
    withForeignPtr ForeignPtr Scale
    arg1 ((Ptr Scale -> IO CInt) -> IO CInt)
    -> (Ptr Scale -> IO CInt) -> IO CInt
    forall a b. (a -> b) -> a -> b
    $ \Ptr Scale
    argPtr1 ->Ptr Scale -> IO CInt
    gtk_scale_get_draw_value Ptr Scale
    argPtr1)
    {-# LINE 130 "./Graphics/UI/Gtk/Abstract/Scale.chs" #-}
        (toScale self)

    -- | Sets the position in which the current value is displayed.
    --
    scaleSetValuePos :: ScaleClass self => self
     -> PositionType -- ^ @pos@ - the position in which the current value is
                     -- displayed.
     -> IO ()
    scaleSetValuePos :: forall self. ScaleClass self => self -> PositionType -> IO ()
    scaleSetValuePos self
    self PositionType
    pos =
      (\(Scale ForeignPtr Scale
    arg1) CInt
    arg2 -> ForeignPtr Scale -> (Ptr Scale -> IO ()) -> IO ()
    forall a b. ForeignPtr a -> (Ptr a -> IO b) -> IO b
    withForeignPtr ForeignPtr Scale
    arg1 ((Ptr Scale -> IO ()) -> IO ()) -> (Ptr Scale -> IO ()) -> IO ()
    forall a b. (a -> b) -> a -> b
    $ \Ptr Scale
    argPtr1 ->Ptr Scale -> CInt -> IO ()
    gtk_scale_set_value_pos Ptr Scale
    argPtr1 CInt
    arg2)
    {-# LINE 140 "./Graphics/UI/Gtk/Abstract/Scale.chs" #-}
        (toScale self)
        ((Int -> CInt
    forall a b. (Integral a, Num b) => a -> b
    fromIntegral (Int -> CInt) -> (PositionType -> Int) -> PositionType -> CInt
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . PositionType -> Int
    forall a. Enum a => a -> Int
    fromEnum) PositionType
    pos)

    -- | Gets the position in which the current value is displayed.
    --
    scaleGetValuePos :: ScaleClass self => self
     -> IO PositionType -- ^ returns the position in which the current value is
                        -- displayed.
    scaleGetValuePos :: forall self. ScaleClass self => self -> IO PositionType
    scaleGetValuePos self
    self =
      (CInt -> PositionType) -> IO CInt -> IO PositionType
    forall (m :: * -> *) a1 r. Monad m => (a1 -> r) -> m a1 -> m r
    liftM (Int -> PositionType
    forall a. Enum a => Int -> a
    toEnum (Int -> PositionType) -> (CInt -> Int) -> CInt -> PositionType
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . CInt -> Int
    forall a b. (Integral a, Num b) => a -> b
    fromIntegral) (IO CInt -> IO PositionType) -> IO CInt -> IO PositionType
    forall a b. (a -> b) -> a -> b
    $
      (\(Scale ForeignPtr Scale
    arg1) -> ForeignPtr Scale -> (Ptr Scale -> IO CInt) -> IO CInt
    forall a b. ForeignPtr a -> (Ptr a -> IO b) -> IO b
    withForeignPtr ForeignPtr Scale
    arg1 ((Ptr Scale -> IO CInt) -> IO CInt)
    -> (Ptr Scale -> IO CInt) -> IO CInt
    forall a b. (a -> b) -> a -> b
    $ \Ptr Scale
    argPtr1 ->Ptr Scale -> IO CInt
    gtk_scale_get_value_pos Ptr Scale
    argPtr1)
    {-# LINE 151 "./Graphics/UI/Gtk/Abstract/Scale.chs" #-}
        (toScale self)

    --------------------
    -- Attributes

    -- | The number of decimal places that are displayed in the value.
    --
    -- Allowed values: [-1,64]
    --
    -- Default value: 1
    --
    scaleDigits :: ScaleClass self => Attr self Int
    scaleDigits :: forall self. ScaleClass self => Attr self Int
    scaleDigits = (self -> IO Int)
    -> (self -> Int -> IO ()) -> ReadWriteAttr self Int Int
    forall o a b.
    (o -> IO a) -> (o -> b -> IO ()) -> ReadWriteAttr o a b
    newAttr
      self -> IO Int
    forall self. ScaleClass self => self -> IO Int
    scaleGetDigits
      self -> Int -> IO ()
    forall self. ScaleClass self => self -> Int -> IO ()
    scaleSetDigits

    -- | Whether the current value is displayed as a string next to the slider.
    --
    -- Default value: @True@
    --
    scaleDrawValue :: ScaleClass self => Attr self Bool
    scaleDrawValue :: forall self. ScaleClass self => Attr self Bool
    scaleDrawValue = (self -> IO Bool)
    -> (self -> Bool -> IO ()) -> ReadWriteAttr self Bool Bool
    forall o a b.
    (o -> IO a) -> (o -> b -> IO ()) -> ReadWriteAttr o a b
    newAttr
      self -> IO Bool
    forall self. ScaleClass self => self -> IO Bool
    scaleGetDrawValue
      self -> Bool -> IO ()
    forall self. ScaleClass self => self -> Bool -> IO ()
    scaleSetDrawValue

    -- | The position in which the current value is displayed.
    --
    -- Default value: 'PosTop'
    --
    scaleValuePos :: ScaleClass self => Attr self PositionType
    scaleValuePos :: forall self. ScaleClass self => Attr self PositionType
    scaleValuePos = (self -> IO PositionType)
    -> (self -> PositionType -> IO ())
    -> ReadWriteAttr self PositionType PositionType
    forall o a b.
    (o -> IO a) -> (o -> b -> IO ()) -> ReadWriteAttr o a b
    newAttr
      self -> IO PositionType
    forall self. ScaleClass self => self -> IO PositionType
    scaleGetValuePos
      self -> PositionType -> IO ()
    forall self. ScaleClass self => self -> PositionType -> IO ()
    scaleSetValuePos

    foreign import ccall safe "gtk_scale_set_digits"
      gtk_scale_set_digits :: ((Ptr Scale) -> (CInt -> (IO ())))

    foreign import ccall unsafe "gtk_scale_get_digits"
      gtk_scale_get_digits :: ((Ptr Scale) -> (IO CInt))

    foreign import ccall safe "gtk_scale_set_draw_value"
      gtk_scale_set_draw_value :: ((Ptr Scale) -> (CInt -> (IO ())))

    foreign import ccall unsafe "gtk_scale_get_draw_value"
      gtk_scale_get_draw_value :: ((Ptr Scale) -> (IO CInt))

    foreign import ccall safe "gtk_scale_set_value_pos"
      gtk_scale_set_value_pos :: ((Ptr Scale) -> (CInt -> (IO ())))

    foreign import ccall unsafe "gtk_scale_get_value_pos"
      gtk_scale_get_value_pos :: ((Ptr Scale) -> (IO CInt))