mirror of
https://gitlab.com/sheaf/metabrush.git
synced 2024-11-05 14:53:37 +00:00
352 lines
9.6 KiB
Haskell
352 lines
9.6 KiB
Haskell
{-# LANGUAGE BlockArguments #-}
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{-# LANGUAGE NamedFieldPuns #-}
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{-# LANGUAGE NegativeLiterals #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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{-# LANGUAGE TypeApplications #-}
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module Main
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( main )
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where
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-- base
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import Control.Monad
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( void )
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import Data.Foldable
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( for_ )
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import Data.Int
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( Int32 )
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import Data.Word
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( Word32 )
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import System.Exit
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( exitSuccess )
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-- containers
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import Data.IntMap.Strict
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( IntMap )
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import qualified Data.IntMap.Strict as IntMap
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( fromList )
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import Data.Sequence
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( Seq(..) )
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import qualified Data.Sequence as Seq
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( fromList )
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-- directory
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import qualified System.Directory as Directory
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( canonicalizePath )
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-- gi-cairo-connector
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import qualified GI.Cairo.Render.Connector as Cairo
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( renderWithContext )
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-- gi-gdk
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import qualified GI.Gdk as GDK
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-- gi-gtk
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import qualified GI.Gtk as GTK
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-- stm
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import qualified Control.Concurrent.STM.TVar as STM
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( newTVarIO, readTVarIO )
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-- text
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import qualified Data.Text as Text
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( pack )
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-- MetaBrush
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import Math.Bezier.Stroke
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( StrokePoint(..) )
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import Math.Vector2D
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( Point2D(..) )
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import MetaBrush.Asset.Colours
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( getColours )
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import MetaBrush.Asset.Logo
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( drawLogo )
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import MetaBrush.Document
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( Document(..), AABB(..), Stroke(..)
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, FocusState(..)
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, PointData(..), BrushPointData(..)
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, currentDocument
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)
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import MetaBrush.Event
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( HoldEvent, PartialPath
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, handleEvents
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)
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import MetaBrush.Render.Document
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( renderDocument )
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import MetaBrush.Render.Util
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( widgetAddClass, widgetAddClasses )
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import MetaBrush.UI.FileBar
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( createFileBar )
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import MetaBrush.UI.InfoBar
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( createInfoBar )
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import MetaBrush.UI.Menu
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( createMenuBar )
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import MetaBrush.UI.Panels
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( createPanelBar )
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import MetaBrush.UI.ToolBar
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( Tool(..), Mode(..), createToolBar )
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import MetaBrush.UI.Viewport
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( Viewport(..), createViewport )
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import MetaBrush.Unique
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( newUniqueSupply, unsafeUnique )
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import qualified Paths_MetaBrush as Cabal
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( getDataFileName )
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--------------------------------------------------------------------------------
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testDocuments :: IntMap Document
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testDocuments = IntMap.fromList
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$ zip [0..]
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[ Document
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{ displayName = "Document 1"
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, filePath = Nothing
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, unsavedChanges = False
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, strokes = [ Stroke ( circle ( PointData Normal ( razor $ BrushPointData Normal ) ) ) "Circle" True ( unsafeUnique 0 )
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]
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, bounds = AABB ( Point2D 0 0 ) ( Point2D 100 100 )
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, viewportCenter = Point2D 50 50
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, zoomFactor = 1
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}
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, Document
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{ displayName = "Document 2"
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, filePath = Nothing
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, unsavedChanges = True
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, strokes = [ ]
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, bounds = AABB ( Point2D 0 0 ) ( Point2D 50 50 )
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, viewportCenter = Point2D 10 10
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, zoomFactor = 0.25
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}
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]
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circle :: forall a. a -> Seq ( StrokePoint a )
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circle d = Seq.fromList
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[ pp ( Point2D 0 1 )
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, cp ( Point2D a 1 )
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, cp ( Point2D 1 a )
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, pp ( Point2D 1 0 )
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, cp ( Point2D 1 (-a) )
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, cp ( Point2D a (-1) )
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, pp ( Point2D 0 (-1) )
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, cp ( Point2D (-a) (-1) )
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, cp ( Point2D (-1) (-a) )
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, pp ( Point2D (-1) 0 )
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, cp ( Point2D (-1) a )
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, cp ( Point2D (-a) 1 )
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, pp ( Point2D 0 1 )
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]
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where
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a :: Double
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a = 0.551915024494
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pp, cp :: Point2D Double -> StrokePoint a
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pp p = PathPoint ( fmap ( * 100 ) p ) d
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cp p = ControlPoint ( fmap ( * 100 ) p ) d
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razor :: forall a. a -> Seq ( StrokePoint a )
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razor d = Seq.fromList
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[ pp ( Point2D 30 0 )
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, cp ( Point2D 30 -6 )
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, cp ( Point2D -30 -6 )
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, pp ( Point2D -30 0 )
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, cp ( Point2D -30 3 )
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, cp ( Point2D 30 3 )
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, pp ( Point2D 30 0 )
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]
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where
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pp, cp :: Point2D Double -> StrokePoint a
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pp p = PathPoint p d
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cp p = ControlPoint p d
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--------------------------------------------------------------------------------
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main :: IO ()
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main = do
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---------------------------------------------------------
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-- Initialise state
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uniqueSupply <- newUniqueSupply
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activeDocumentTVar <- STM.newTVarIO @( Maybe Int ) Nothing
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openDocumentsTVar <- STM.newTVarIO @( IntMap Document ) testDocuments
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mousePosTVar <- STM.newTVarIO @( Maybe ( Point2D Double ) ) Nothing
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mouseHoldTVar <- STM.newTVarIO @( Maybe HoldEvent ) Nothing
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pressedKeysTVar <- STM.newTVarIO @[ Word32 ] []
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toolTVar <- STM.newTVarIO @Tool Selection
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modeTVar <- STM.newTVarIO @Mode Path
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partialPathTVar <- STM.newTVarIO @( Maybe PartialPath ) Nothing
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---------------------------------------------------------
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-- Initialise GTK
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void $ GTK.init Nothing
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Just screen <- GDK.screenGetDefault
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themePath <- Text.pack <$> ( Directory.canonicalizePath =<< Cabal.getDataFileName "theme.css" )
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cssProvider <- GTK.cssProviderNew
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GTK.cssProviderLoadFromPath cssProvider themePath
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GTK.styleContextAddProviderForScreen screen cssProvider 1000
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window <- GTK.windowNew GTK.WindowTypeToplevel
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windowWidgetPath <- GTK.widgetGetPath window
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widgetAddClass window "window"
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GTK.setWindowResizable window True
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GTK.setWindowDecorated window False
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GTK.setWindowTitle window "MetaBrush"
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GTK.windowSetDefaultSize window 800 600
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GTK.widgetAddEvents window
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[ GDK.EventMaskKeyPressMask, GDK.EventMaskKeyReleaseMask ]
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let
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baseMinWidth, baseMinHeight :: Int32
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baseMinWidth = 480
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baseMinHeight = 240
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windowGeometry <- GDK.newZeroGeometry
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GDK.setGeometryMinWidth windowGeometry baseMinWidth
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GDK.setGeometryMinHeight windowGeometry baseMinHeight
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GTK.windowSetGeometryHints window ( Nothing @GTK.Widget )
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( Just windowGeometry )
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[ GDK.WindowHintsMinSize ]
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iconPath <- Directory.canonicalizePath =<< Cabal.getDataFileName "icon.png"
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GTK.windowSetIconFromFile window iconPath
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colours <- getColours windowWidgetPath
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---------------------------------------------------------
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-- Create base UI elements
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baseOverlay <- GTK.overlayNew
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GTK.setContainerChild window baseOverlay
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uiGrid <- GTK.gridNew
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GTK.setContainerChild baseOverlay uiGrid
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logo <- GTK.boxNew GTK.OrientationVertical 0
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titleBar <- GTK.boxNew GTK.OrientationHorizontal 0
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toolBar <- GTK.boxNew GTK.OrientationVertical 0
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mainPane <- GTK.panedNew GTK.OrientationHorizontal
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panelBox <- GTK.boxNew GTK.OrientationVertical 0
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GTK.gridAttach uiGrid logo 0 0 1 2
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GTK.gridAttach uiGrid titleBar 1 0 2 1
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GTK.gridAttach uiGrid toolBar 0 2 2 1
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GTK.gridAttach uiGrid mainPane 2 2 1 1
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mainView <- GTK.boxNew GTK.OrientationVertical 0
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GTK.panedPack1 mainPane mainView True False
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GTK.panedPack2 mainPane panelBox False False
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fileBar <- GTK.scrolledWindowNew ( Nothing @GTK.Adjustment ) ( Nothing @GTK.Adjustment )
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viewportGrid <- GTK.gridNew
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infoBar <- GTK.boxNew GTK.OrientationHorizontal 0
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GTK.boxPackStart mainView fileBar False False 0
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GTK.boxPackStart mainView viewportGrid True True 0
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GTK.boxPackStart mainView infoBar False False 0
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---------------------------------------------------------
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-- Background
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widgetAddClass uiGrid "bg"
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---------------------------------------------------------
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-- Title bar
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widgetAddClass titleBar "titleBar"
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--------
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-- Logo
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widgetAddClass logo "logo"
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logoArea <- GTK.drawingAreaNew
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GTK.boxPackStart logo logoArea True True 0
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void $ GTK.onWidgetDraw logoArea
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$ Cairo.renderWithContext ( drawLogo colours )
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------------
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-- Menu bar
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_ <- createMenuBar colours window titleBar
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------------
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-- Title
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title <- GTK.labelNew ( Just "MetaBrush" )
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widgetAddClasses title [ "text", "title", "plain" ]
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GTK.boxSetCenterWidget titleBar ( Just title )
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---------------------------------------------------------
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-- Main viewport
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Viewport { viewportDrawingArea } <- createViewport viewportGrid
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-----------------
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-- Viewport rendering
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void $ GTK.onWidgetDraw viewportDrawingArea \ ctx -> do
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-- Get the relevant document information
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mbDoc <- currentDocument activeDocumentTVar openDocumentsTVar
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for_ mbDoc \ doc -> do
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mbMousePos <- STM.readTVarIO mousePosTVar
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mbHoldEvent <- STM.readTVarIO mouseHoldTVar
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mbPartialPath <- STM.readTVarIO partialPathTVar
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mode <- STM.readTVarIO modeTVar
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viewportWidth <- GTK.widgetGetAllocatedWidth viewportDrawingArea
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viewportHeight <- GTK.widgetGetAllocatedHeight viewportDrawingArea
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( `Cairo.renderWithContext` ctx ) $
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renderDocument
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colours mode ( viewportWidth, viewportHeight )
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mbMousePos mbHoldEvent mbPartialPath
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doc
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pure True
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---------------------------------------------------------
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-- Tool bar
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_ <- createToolBar toolTVar modeTVar colours viewportDrawingArea toolBar
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---------------------------------------------------------
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-- Info bar
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infoBarElements <- createInfoBar colours infoBar
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---------------------------------------------------------
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-- File bar
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_ <-
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createFileBar
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activeDocumentTVar
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openDocumentsTVar
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window
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title
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viewportDrawingArea
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infoBarElements
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fileBar
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---------------------------------------------------------
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-- Panels
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createPanelBar panelBox
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---------------------------------------------------------
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-- Actions
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handleEvents
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uniqueSupply
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activeDocumentTVar openDocumentsTVar
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mousePosTVar mouseHoldTVar pressedKeysTVar
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toolTVar modeTVar partialPathTVar
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window viewportDrawingArea infoBarElements
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---------------------------------------------------------
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-- GTK main loop
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GTK.widgetShowAll window
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GTK.main
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exitSuccess
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