| Safe Haskell | None |
|---|---|
| Language | Haskell98 |
FPPrac.Graphs
- type Label = Char
- type Weight = Int
- type Node = (Label, Pos, ColorG)
- type Edge = (Label, Label, ColorG, Weight)
- data Graph = Graph {}
- data ColorG
- data Thickness
- data Directed
- data Weighted
- data GraphOutput
- data GraphInput
- type Pos = (Float, Float)
- data MouseButton :: *
- type KeyboardButton = [Char]
- onNode :: [Node] -> Pos -> Maybe Node
- preEventloop :: (a -> GraphInput -> ([GraphOutput], a)) -> a -> IO ()
Documentation
data GraphOutput Source
The output expected in a graph graphical program
Constructors
| NodeG Label Pos ColorG | |
| LineG Node Node ColorG Thickness Directed | |
| WeightedLineG Node Node Weight ColorG Thickness Directed | |
| Instructions [String] | |
| RemoveNodeG Label | |
| RemoveEdgeG Label Label | |
| ClearAllG |
Instances
data GraphInput Source
The input expected in a graph graphical program
Type to express a position on the screen. It uses the format (x,y). As Canvas is used in the example implementation, remember that the lefttop corner is (0,0) and the leftbottom corner is (0, height of screen).
data MouseButton :: *
The MouseButton on the mouse.
Instances
| Show MouseButton | |
| FromJSON MouseButton | How to parse a |
type KeyboardButton = [Char]
Type to express how a KeyboardButton is modelled.
preEventloop :: (a -> GraphInput -> ([GraphOutput], a)) -> a -> IO () Source