XMonad.Layout.ZoomRow

xmonad-contrib-0.12: Third party extensions for xmonad

Copyright | Quentin Moser <moserq@gmail.com>
License | BSD-style (see LICENSE)
Maintainer | orphaned
Stability | unstable
Portability | unportable
Safe Haskell | None
Language | Haskell98

XMonad.Layout.ZoomRow

Contents

- Usage
- Creation
- Messages
- Use with non-`Eq` elements

Description

Row layout with individually resizable elements.

Synopsis

- data ZoomRow f a
- zoomRow :: (Eq a, Show a, Read a) => ZoomRow ClassEQ a
- data ZoomMessage
  - = Zoom Rational
  - | ZoomTo Rational
  - | ZoomFull Bool
  - | ZoomFullToggle
- zoomIn :: ZoomMessage
- zoomOut :: ZoomMessage
- zoomReset :: ZoomMessage
- zoomRowWith :: (EQF f a, Show (f a), Read (f a), Show a, Read a) => f a -> ZoomRow f a
- class EQF f a where
  - eq :: f a -> a -> a -> Bool
- data ClassEQ a = ClassEQ

# Usage

This module provides a layout which places all windows in a single row; the size occupied by each individual window can be increased and decreased, and a window can be set to use the whole available space whenever it has focus.

You can use this module by including the following in your `~/.xmonad/xmonad.hs`:

    import XMonad.Layout.ZoomRow

and using `zoomRow` somewhere in your `layoutHook`, for example:

    myLayout = zoomRow ||| Mirror zoomRow

To be able to resize windows, you can create keybindings to send the relevant `ZoomMessage`s:

      -- Increase the size occupied by the focused window
    , ((modMask .|. shifMask, xK_minus), sendMessage zoomIn)
      -- Decrease the size occupied by the focused window
    , ((modMayk             , xK_minus), sendMessage zoomOut)
      -- Reset the size occupied by the focused window
    , ((modMask             , xK_equal), sendMessage zoomReset)
      -- (Un)Maximize the focused window
    , ((modMask             , xK_f    ), sendMessage ToggleZoomFull)

For more information on editing your layout hook and key bindings, see XMonad.Doc.Extending.

data ZoomRow f a

A layout that arranges its windows in a horizontal row, and allows to change the relative size of each element independently.

Instances

(EQF f a, Show a, Read a, Show (f a), Read (f a)) => LayoutClass (ZoomRow f) a |
(Eq a, Eq (f a)) => Eq (ZoomRow f a) |
(Read a, Read (f a)) => Read (ZoomRow f a) |
(Show a, Show (f a)) => Show (ZoomRow f a) |

# Creation

zoomRow :: (Eq a, Show a, Read a) => ZoomRow ClassEQ a

`ZoomRow` layout for laying out elements which are instances of `Eq`. Perfect for `Window`s.

# Messages

data ZoomMessage

The type of messages accepted by a `ZoomRow` layout

Constructors

Zoom Rational | Multiply the focused window's size factor by the given number.
ZoomTo Rational | Set the focused window's size factor to the given number.
ZoomFull Bool | Set whether the focused window should occupy all available space when it has focus
ZoomFullToggle | Toggle whether the focused window should occupy all available space when it has focus

Instances

Show ZoomMessage |
Message ZoomMessage |

zoomIn :: ZoomMessage

Increase the size of the focused window. Defined as `Zoom 1.5`

zoomOut :: ZoomMessage

Decrease the size of the focused window. Defined as `Zoom (2/3)`

zoomReset :: ZoomMessage

Reset the size of the focused window. Defined as `ZoomTo 1`

# Use with non-`Eq` elements

Haskell's `Eq` class is usually concerned with structural equality, whereas what this layout really wants is for its elements to have a unique identity, even across changes. There are cases (such as, importantly, `Window`s) where the `Eq` instance for a type actually does that, but if you want to lay out something more exotic than windows and your `Eq` means something else, you can use the following.

zoomRowWith :: (EQF f a, Show (f a), Read (f a), Show a, Read a) => f a -> ZoomRow f a

ZoomRow layout with a custom equality predicate. It should of course satisfy the laws for `Eq`, and you should also make sure that the layout never has to handle two "equal" elements at the same time (it won't do any huge damage, but might behave a bit strangely).

class EQF f a where

Class for equivalence relations. Must be transitive, reflexive.

Methods

eq :: f a -> a -> a -> Bool

Instances

Eq a => EQF ClassEQ a |
Eq a => EQF GroupEQ (Group l a) |

data ClassEQ a

To use the usual `==`:

Constructors

ClassEQ |

Instances

Eq a => EQF ClassEQ a |
Eq (ClassEQ a) |
Read (ClassEQ a) |
Show (ClassEQ a) |