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https://gitlab.com/sheaf/metabrush.git
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create/move/delete guides: drag from ruler area
This commit is contained in:
parent
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commit
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@ -109,6 +109,7 @@ executable MetaBrush
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, MetaBrush.Context
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, MetaBrush.Document
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, MetaBrush.Document.Draw
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, MetaBrush.Document.Guide
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, MetaBrush.Document.Selection
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, MetaBrush.Document.Serialise
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, MetaBrush.Event
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131
app/Main.hs
131
app/Main.hs
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@ -13,6 +13,8 @@ module Main
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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 System.Exit
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@ -61,6 +63,8 @@ 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.Action
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( ActionOrigin(..) )
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import MetaBrush.Asset.Brushes
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( ellipse, rect )
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import MetaBrush.Asset.Colours
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@ -74,26 +78,28 @@ import MetaBrush.Context
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, withCurrentDocument
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)
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import MetaBrush.Document
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( Document(..), Stroke(..)
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, FocusState(..)
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( Document(..), emptyDocument
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, Stroke(..), FocusState(..)
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, PointData(..), BrushPointData(..)
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)
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import MetaBrush.Event
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( handleEvents )
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import MetaBrush.Render.Document
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( renderDocument, blankRender )
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( renderDocument, renderGuides, blankRender )
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import MetaBrush.UI.FileBar
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( FileBar(..), createFileBar )
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import MetaBrush.UI.InfoBar
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( InfoBar(..), createInfoBar )
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( InfoBar(..), createInfoBar, updateInfoBar )
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import MetaBrush.UI.Menu
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( createMenuBar )
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( createMenuBar
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--, MenuItem(..), Menu(..), FileMenu(..), EditMenu(..), ViewMenu(..)
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)
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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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( Viewport(..), Ruler(..), createViewport )
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import MetaBrush.Unique
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( newUniqueSupply
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, Unique, unsafeUnique
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@ -108,50 +114,35 @@ import qualified Paths_MetaBrush as Cabal
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testDocuments :: Map Unique Document
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testDocuments = uniqueMapFromList
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[ Document
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{ displayName = "Closed"
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, mbFilePath = Nothing
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, unsavedChanges = False
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, viewportCenter = Point2D 50 50
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, zoomFactor = 1
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, documentUnique = unsafeUnique 0
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, strokes = [ Stroke
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{ strokeName = "Ellipse"
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, strokeVisible = True
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, strokeUnique = unsafeUnique 10
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, strokePoints = ellipse 150 100 ( PointData Normal ( rect 30 6 $ BrushPointData Normal ) )
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}
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]
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[ ( emptyDocument "Closed" ( unsafeUnique 0 ) )
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{ strokes =
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[ Stroke
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{ strokeName = "Ellipse"
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, strokeVisible = True
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, strokeUnique = unsafeUnique 10
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, strokePoints = ellipse 150 100 ( PointData Normal ( rect 30 6 $ BrushPointData Normal ) )
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}
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]
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}
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, Document
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{ displayName = "Line"
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, mbFilePath = Nothing
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, unsavedChanges = False
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, viewportCenter = Point2D 0 0
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, zoomFactor = 1
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, documentUnique = unsafeUnique 1
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, strokes = [ Stroke
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{ strokeName = "Line"
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, strokeVisible = True
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, strokeUnique = unsafeUnique 11
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, strokePoints = linePts
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}
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]
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, ( emptyDocument "Line" ( unsafeUnique 1 ) )
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{ strokes =
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[ Stroke
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{ strokeName = "Line"
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, strokeVisible = True
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, strokeUnique = unsafeUnique 11
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, strokePoints = linePts
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}
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]
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}
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, Document
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{ displayName = "Short line"
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, mbFilePath = Nothing
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, unsavedChanges = False
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, viewportCenter = Point2D 0 0
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, zoomFactor = 1
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, documentUnique = unsafeUnique 2
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, strokes = [ Stroke
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{ strokeName = "ShortLine"
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, strokeVisible = True
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, strokeUnique = unsafeUnique 12
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, strokePoints = linePts2
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}
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]
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, ( emptyDocument "Short line" ( unsafeUnique 2 ) )
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{ strokes =
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[ Stroke
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{ strokeName = "ShortLine"
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, strokeVisible = True
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, strokeUnique = unsafeUnique 12
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, strokePoints = linePts2
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}
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]
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}
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]
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where
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@ -194,7 +185,7 @@ main = do
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-- Put all these stateful variables in a record for conciseness.
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let
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variables :: Variables
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variables = Variables { .. }
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variables = Variables {..}
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---------------------------------------------------------
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-- Initialise GTK
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@ -292,7 +283,7 @@ main = do
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---------------------------------------------------------
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-- Main viewport
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Viewport { viewportDrawingArea } <- createViewport viewportGrid
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viewport@( Viewport { .. } ) <- createViewport viewportGrid
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-----------------
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-- Viewport rendering
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@ -301,22 +292,47 @@ main = do
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-- Get the relevant document information
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viewportWidth <- GTK.widgetGetAllocatedWidth viewportDrawingArea
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viewportHeight <- GTK.widgetGetAllocatedHeight viewportDrawingArea
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mbRender <- STM.atomically $ withCurrentDocument variables \ doc@( Document { .. } ) -> do
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mbRender <- STM.atomically $ withCurrentDocument variables \ doc@( Document {..} ) -> do
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mbMousePos <- STM.readTVar mousePosTVar
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mbHoldAction <- STM.readTVar mouseHoldTVar
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mbPartialPath <- STM.readTVar partialPathTVar
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mode <- STM.readTVar modeTVar
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pure $
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pure do
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renderDocument
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colours mode ( viewportWidth, viewportHeight )
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mbMousePos mbHoldAction mbPartialPath
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doc
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renderGuides
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colours ( viewportWidth, viewportHeight ) ViewportOrigin ( viewportWidth, viewportHeight )
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mbMousePos mbHoldAction
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doc
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case mbRender of
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Just render -> Cairo.renderWithContext render ctx
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Nothing -> Cairo.renderWithContext ( blankRender colours ) ctx
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pure True
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for_ [ ( rulerCornerDrawingArea, RulerCorner )
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, ( topRulerDrawingArea, TopRuler )
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, ( leftRulerDrawingArea, LeftRuler
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) ] \ ( rulerDrawingArea, ruler ) -> do
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void $ GTK.onWidgetDraw rulerDrawingArea \ ctx -> do
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viewportWidth <- GTK.widgetGetAllocatedWidth viewportDrawingArea
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viewportHeight <- GTK.widgetGetAllocatedHeight viewportDrawingArea
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width <- GTK.widgetGetAllocatedWidth rulerDrawingArea
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height <- GTK.widgetGetAllocatedHeight rulerDrawingArea
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mbRender <- STM.atomically $ withCurrentDocument variables \ doc@( Document {..} ) -> do
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mbMousePos <- STM.readTVar mousePosTVar
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mbHoldAction <- STM.readTVar mouseHoldTVar
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pure do
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renderGuides
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colours ( viewportWidth, viewportHeight ) ( RulerOrigin ruler ) ( width, height )
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mbMousePos mbHoldAction
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doc
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for_ mbRender \ render -> Cairo.renderWithContext render ctx
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pure True
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---------------------------------------------------------
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-- Tool bar
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@ -329,12 +345,12 @@ main = do
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---------------------------------------------------------
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-- File bar
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fileBar@( FileBar { fileBarBox } ) <-
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createFileBar
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colours
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variables
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window titleBar title viewportDrawingArea infoBar
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window titleBar title viewport infoBar
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GTK.boxPackStart mainView fileBarBox False False 0
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GTK.boxPackStart mainView viewportGrid True True 0
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@ -342,12 +358,14 @@ main = do
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let
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uiElements :: UIElements
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uiElements = UIElements { .. }
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uiElements = UIElements {..}
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------------
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-- Menu bar
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_ <- createMenuBar uiElements variables colours
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_menu <- createMenuBar uiElements variables colours
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--GTK.widgetSetSensitive ( menuItem $ close $ menuItemSubmenu $ file menu ) False
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---------------------------------------------------------
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-- Panels
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@ -363,6 +381,7 @@ main = do
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-- GTK main loop
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GTK.widgetShowAll window
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updateInfoBar viewportDrawingArea infoBar variables -- need to update the info bar after widgets have been realized
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GTK.main
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exitSuccess
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@ -75,6 +75,9 @@
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.tabScrollbar {
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background-color: rgba(48, 45, 38, 0.66);
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}
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.guide {
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color: rgba(28, 196, 79, 0.66)
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}
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.magnifier {
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color: rgb(236, 223, 210);
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}
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@ -419,3 +422,8 @@ tooltip {
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font-size: 10px;
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-GtkWidget-window-dragging: true;
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}
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.infoBarInfo {
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margin-left: -4px;
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padding-right: 16px;
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}
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@ -52,12 +52,22 @@ import System.Directory
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import System.FilePath
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( (</>), (<.>), takeExtension )
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-- generic-lens
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import Data.Generics.Product.Fields
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( field' )
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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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-- lens
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import Control.Lens
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( over, set )
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import Control.Lens.At
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( ix, at )
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-- stm
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import qualified Control.Concurrent.STM as STM
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( atomically )
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@ -74,18 +84,20 @@ import Math.Vector2D
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import MetaBrush.Context
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( UIElements(..), Variables(..)
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, Modifier(..), modifierKey
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, HoldAction(..), PartialPath(..)
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, HoldAction(..), GuideAction(..), PartialPath(..)
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, currentDocument, withCurrentDocument
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, PureDocModification(..), DocModification(..)
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, modifyingCurrentDocument
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, updateTitle
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)
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import MetaBrush.Document
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( Document(..)
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( Document(..), Guide(..)
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, PointData(..), FocusState(..)
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)
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import MetaBrush.Document.Draw
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( addToAnchor, getOrCreateDrawAnchor, anchorsAreComplementary )
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import MetaBrush.Document.Guide
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( selectGuide, addGuide )
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import MetaBrush.Document.Selection
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( SelectionMode(..), selectionMode
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, selectAt, selectRectangle
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@ -103,6 +115,8 @@ import {-# SOURCE #-} MetaBrush.UI.FileBar
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( TabLocation(..), newFileTab, removeFileTab )
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import MetaBrush.UI.ToolBar
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( Tool(..) )
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import MetaBrush.UI.Viewport
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( Viewport(..), Ruler(..) )
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import MetaBrush.Unique
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( Unique )
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import MetaBrush.Util
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@ -138,7 +152,7 @@ data OpenFile = OpenFile TabLocation
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deriving stock Show
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instance HandleAction OpenFile where
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handleAction uiElts@( UIElements { .. } ) vars@( Variables { .. } ) ( OpenFile tabLoc ) = do
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handleAction uiElts@( UIElements {..} ) vars@( Variables {..} ) ( OpenFile tabLoc ) = do
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fileChooser <-
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GTK.fileChooserNativeNew ( Just "Open MetaBrush document..." ) ( Just window )
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GTK.FileChooserActionOpen
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@ -167,7 +181,7 @@ data OpenFolder = OpenFolder TabLocation
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deriving stock Show
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instance HandleAction OpenFolder where
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handleAction uiElts@( UIElements { .. } ) vars@( Variables { .. } ) ( OpenFolder tabLoc ) = do
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handleAction uiElts@( UIElements {..} ) vars@( Variables {..} ) ( OpenFolder tabLoc ) = do
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fileChooser <-
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GTK.fileChooserNativeNew ( Just "Select folder..." ) ( Just window )
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GTK.FileChooserActionSelectFolder
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@ -197,7 +211,7 @@ data Save = Save
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deriving stock Show
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instance HandleAction Save where
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handleAction uiElts@( UIElements { .. } ) vars@( Variables { .. } ) _ =
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handleAction uiElts@( UIElements {..} ) vars@( Variables {..} ) _ =
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save uiElts vars True
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save :: UIElements -> Variables -> Bool -> IO ()
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@ -249,7 +263,7 @@ saveAs uiElts vars keepOpen = do
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pure $ UpdateDocToAndThen Nothing ( saveDocument savePath doc' )
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askForSavePath :: UIElements -> IO ( Maybe FilePath )
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askForSavePath ( UIElements { .. } ) = do
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askForSavePath ( UIElements {..} ) = do
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fileChooser <-
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GTK.fileChooserNativeNew ( Just "Save MetaBrush document..." ) ( Just window )
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GTK.FileChooserActionSave
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@ -287,44 +301,47 @@ pattern SaveAndClose = 2
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pattern CancelClose = 3
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instance HandleAction Close where
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handleAction uiElts@( UIElements { .. } ) vars@( Variables { .. } ) close = do
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mbDoc <- case close of
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CloseActive -> STM.atomically ( currentDocument vars )
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CloseThis unique -> Map.lookup unique <$> STM.readTVarIO openDocumentsTVar
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case mbDoc of
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Nothing -> pure () -- could show a warning message
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Just ( Document { displayName, documentUnique, unsavedChanges } )
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| unsavedChanges
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-> do
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dialog <- GTK.new GTK.MessageDialog []
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GTK.setMessageDialogText dialog ( " \n\"" <> displayName <> "\" contains unsaved changes.\nClose anyway?" )
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GTK.setMessageDialogMessageType dialog GTK.MessageTypeQuestion
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GTK.setWindowResizable dialog False
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GTK.setWindowDecorated dialog False
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GTK.windowSetTransientFor dialog ( Just window )
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GTK.windowSetModal dialog True
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widgetAddClasses dialog [ "bg", "plain", "text", "dialog" ]
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closeButton <- GTK.dialogAddButton dialog "Close" JustClose
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saveButton <- GTK.dialogAddButton dialog "Save and close" SaveAndClose
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cancelButton <- GTK.dialogAddButton dialog "Cancel" CancelClose
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GTK.dialogSetDefaultResponse dialog 1
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for_ [ closeButton, saveButton, cancelButton ] \ button -> widgetAddClass button "dialogButton"
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choice <- GTK.dialogRun dialog
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GTK.widgetDestroy dialog
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case choice of
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JustClose -> closeDocument documentUnique
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SaveAndClose -> save uiElts vars False
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_ -> pure ()
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| otherwise
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-> closeDocument documentUnique
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handleAction
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uiElts@( UIElements { viewport = Viewport {..}, .. } )
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vars@( Variables {..} )
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close = do
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mbDoc <- case close of
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CloseActive -> STM.atomically ( currentDocument vars )
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CloseThis unique -> Map.lookup unique <$> STM.readTVarIO openDocumentsTVar
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case mbDoc of
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Nothing -> pure () -- could show a warning message
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Just ( Document { displayName, documentUnique, unsavedChanges } )
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| unsavedChanges
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-> do
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dialog <- GTK.new GTK.MessageDialog []
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GTK.setMessageDialogText dialog ( " \n\"" <> displayName <> "\" contains unsaved changes.\nClose anyway?" )
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GTK.setMessageDialogMessageType dialog GTK.MessageTypeQuestion
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GTK.setWindowResizable dialog False
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GTK.setWindowDecorated dialog False
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GTK.windowSetTransientFor dialog ( Just window )
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GTK.windowSetModal dialog True
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widgetAddClasses dialog [ "bg", "plain", "text", "dialog" ]
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closeButton <- GTK.dialogAddButton dialog "Close" JustClose
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saveButton <- GTK.dialogAddButton dialog "Save and close" SaveAndClose
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cancelButton <- GTK.dialogAddButton dialog "Cancel" CancelClose
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GTK.dialogSetDefaultResponse dialog 1
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for_ [ closeButton, saveButton, cancelButton ] \ button -> widgetAddClass button "dialogButton"
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choice <- GTK.dialogRun dialog
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GTK.widgetDestroy dialog
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case choice of
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JustClose -> closeDocument documentUnique
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SaveAndClose -> save uiElts vars False
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_ -> pure ()
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| otherwise
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-> closeDocument documentUnique
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where
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closeDocument :: Unique -> IO ()
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closeDocument unique = do
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removeFileTab vars unique
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updateTitle window title Nothing
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updateInfoBar viewportDrawingArea infoBar vars
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GTK.widgetQueueDraw viewportDrawingArea
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where
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closeDocument :: Unique -> IO ()
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closeDocument unique = do
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removeFileTab vars unique
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updateTitle window title Nothing
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updateInfoBar viewportDrawingArea infoBar vars
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GTK.widgetQueueDraw viewportDrawingArea
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---------------------
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-- Switch document --
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@ -334,19 +351,22 @@ data SwitchTo = SwitchTo Unique
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deriving stock Show
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instance HandleAction SwitchTo where
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handleAction ( UIElements { .. } ) vars@( Variables { .. } ) ( SwitchTo newUnique ) = do
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mbNewDocAndTab <- STM.atomically do
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STM.writeTVar activeDocumentTVar ( Just newUnique )
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newDoc <- Map.lookup newUnique <$> STM.readTVar openDocumentsTVar
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newTab <- Map.lookup newUnique <$> STM.readTVar fileBarTabsTVar
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pure ( (,) <$> newDoc <*> newTab )
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case mbNewDocAndTab of
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Nothing -> updateTitle window title Nothing
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Just ( Document { .. }, tab ) -> do
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updateTitle window title ( Just ( displayName, unsavedChanges ) )
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updateInfoBar viewportDrawingArea infoBar vars
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GTK.widgetQueueDraw tab
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GTK.widgetQueueDraw viewportDrawingArea
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handleAction
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( UIElements { viewport = Viewport {..}, .. } )
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vars@( Variables {..} )
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( SwitchTo newUnique ) = do
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mbNewDocAndTab <- STM.atomically do
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STM.writeTVar activeDocumentTVar ( Just newUnique )
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newDoc <- Map.lookup newUnique <$> STM.readTVar openDocumentsTVar
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newTab <- Map.lookup newUnique <$> STM.readTVar fileBarTabsTVar
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pure ( (,) <$> newDoc <*> newTab )
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case mbNewDocAndTab of
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Nothing -> updateTitle window title Nothing
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Just ( Document {..}, tab ) -> do
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updateTitle window title ( Just ( displayName, unsavedChanges ) )
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updateInfoBar viewportDrawingArea infoBar vars
|
||||
GTK.widgetQueueDraw tab
|
||||
GTK.widgetQueueDraw viewportDrawingArea
|
||||
|
||||
--------------
|
||||
-- Quitting --
|
||||
|
@ -469,8 +489,8 @@ data Confirm = Confirm
|
|||
|
||||
instance HandleAction Confirm where
|
||||
handleAction
|
||||
( UIElements { viewportDrawingArea } )
|
||||
( Variables { .. } )
|
||||
( UIElements { viewport = Viewport {..} } )
|
||||
( Variables {..} )
|
||||
_
|
||||
= do
|
||||
tool <- STM.readTVarIO toolTVar
|
||||
|
@ -504,13 +524,13 @@ data MouseMove = MouseMove ( Point2D Double )
|
|||
|
||||
instance HandleAction MouseMove where
|
||||
handleAction
|
||||
( UIElements { viewportDrawingArea, infoBar } )
|
||||
vars@( Variables { mousePosTVar, modifiersTVar, toolTVar, partialPathTVar } )
|
||||
( UIElements { viewport = Viewport {..}, .. } )
|
||||
vars@( Variables {..} )
|
||||
( MouseMove ( Point2D x y ) )
|
||||
= do
|
||||
viewportWidth <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedWidth viewportDrawingArea
|
||||
viewportHeight <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedHeight viewportDrawingArea
|
||||
void . STM.atomically $ withCurrentDocument vars \ ( Document { .. } ) -> do
|
||||
void . STM.atomically $ withCurrentDocument vars \ ( Document {..} ) -> do
|
||||
modifiers <- STM.readTVar modifiersTVar
|
||||
let
|
||||
toViewport :: Point2D Double -> Point2D Double
|
||||
|
@ -532,19 +552,26 @@ instance HandleAction MouseMove where
|
|||
|
||||
updateInfoBar viewportDrawingArea infoBar vars
|
||||
GTK.widgetQueueDraw viewportDrawingArea
|
||||
for_ [ rulerCornerDrawingArea, topRulerDrawingArea, leftRulerDrawingArea ] \ drawingArea -> do
|
||||
GTK.widgetQueueDraw drawingArea
|
||||
|
||||
-----------------
|
||||
-- Mouse click --
|
||||
-----------------
|
||||
|
||||
data MouseClick = MouseClick Word32 ( Point2D Double )
|
||||
data ActionOrigin
|
||||
= ViewportOrigin
|
||||
| RulerOrigin Ruler
|
||||
deriving stock Show
|
||||
|
||||
data MouseClick = MouseClick ActionOrigin Word32 ( Point2D Double )
|
||||
deriving stock Show
|
||||
|
||||
instance HandleAction MouseClick where
|
||||
handleAction
|
||||
uiElts@( UIElements { viewportDrawingArea } )
|
||||
vars@( Variables { .. } )
|
||||
( MouseClick button mouseClickCoords )
|
||||
uiElts@( UIElements { viewport = Viewport {..} } )
|
||||
vars@( Variables {..} )
|
||||
( MouseClick actionOrigin button mouseClickCoords )
|
||||
= case button of
|
||||
|
||||
-- Left mouse button.
|
||||
|
@ -558,50 +585,66 @@ instance HandleAction MouseClick where
|
|||
pos :: Point2D Double
|
||||
pos = toViewport mouseClickCoords
|
||||
STM.writeTVar mousePosTVar ( Just pos )
|
||||
modifiers <- STM.readTVar modifiersTVar
|
||||
tool <- STM.readTVar toolTVar
|
||||
mode <- STM.readTVar modeTVar
|
||||
case tool of
|
||||
-- Selection mode mouse hold:
|
||||
--
|
||||
-- - If holding shift or alt, mouse hold initiates a rectangular selection.
|
||||
-- - If not holding shift or alt:
|
||||
-- - if mouse click selected an object, initiate a drag move,
|
||||
-- - otherwise, initiate a rectangular selection.
|
||||
Selection ->
|
||||
case selectionMode modifiers of
|
||||
-- Drag move: not holding shift or alt, click has selected something.
|
||||
New
|
||||
| Just newDoc <- dragMoveSelect mode pos doc
|
||||
-> do
|
||||
STM.writeTVar mouseHoldTVar ( Just $ DragMoveHold pos )
|
||||
pure ( UpdateDocTo $ Just newDoc )
|
||||
-- Rectangular selection.
|
||||
_ -> do
|
||||
STM.writeTVar mouseHoldTVar ( Just $ SelectionHold pos )
|
||||
pure Don'tModifyDoc
|
||||
case actionOrigin of
|
||||
|
||||
-- Pen tool: start or continue a drawing operation.
|
||||
Pen -> do
|
||||
mbPartialPath <- STM.readTVar partialPathTVar
|
||||
STM.writeTVar mouseHoldTVar ( Just $ DrawHold pos )
|
||||
case mbPartialPath of
|
||||
-- No path started yet: find anchor for drawing (existing stroke endpoint, or new stroke).
|
||||
Nothing -> do
|
||||
( newDoc, drawAnchor, anchorPt ) <- getOrCreateDrawAnchor uniqueSupply pos doc
|
||||
STM.writeTVar partialPathTVar
|
||||
( Just $ PartialPath
|
||||
{ partialStartPos = anchorPt
|
||||
, partialControlPoint = Nothing
|
||||
, partialPathAnchor = drawAnchor
|
||||
, firstPoint = True
|
||||
}
|
||||
)
|
||||
pure ( UpdateDocTo $ Just newDoc )
|
||||
-- Path already started: indicate that we are continuing a path.
|
||||
Just pp -> do
|
||||
STM.writeTVar partialPathTVar ( Just $ pp { firstPoint = False } )
|
||||
pure Don'tModifyDoc
|
||||
ViewportOrigin -> do
|
||||
modifiers <- STM.readTVar modifiersTVar
|
||||
tool <- STM.readTVar toolTVar
|
||||
mode <- STM.readTVar modeTVar
|
||||
case tool of
|
||||
-- Selection mode mouse hold:
|
||||
--
|
||||
-- - If holding shift or alt, mouse hold initiates a rectangular selection.
|
||||
-- - If not holding shift or alt:
|
||||
-- - if mouse click selected an object, initiate a drag move,
|
||||
-- - otherwise, initiate a rectangular selection.
|
||||
Selection ->
|
||||
case selectionMode modifiers of
|
||||
-- Drag move: not holding shift or alt, click has selected something.
|
||||
New
|
||||
| Just newDoc <- dragMoveSelect mode pos doc
|
||||
-> do
|
||||
STM.writeTVar mouseHoldTVar ( Just $ DragMoveHold pos )
|
||||
pure ( UpdateDocTo $ Just newDoc )
|
||||
-- Rectangular selection.
|
||||
_ -> do
|
||||
STM.writeTVar mouseHoldTVar ( Just $ SelectionHold pos )
|
||||
pure Don'tModifyDoc
|
||||
|
||||
-- Pen tool: start or continue a drawing operation.
|
||||
Pen -> do
|
||||
mbPartialPath <- STM.readTVar partialPathTVar
|
||||
STM.writeTVar mouseHoldTVar ( Just $ DrawHold pos )
|
||||
case mbPartialPath of
|
||||
-- No path started yet: find anchor for drawing (existing stroke endpoint, or new stroke).
|
||||
Nothing -> do
|
||||
( newDoc, drawAnchor, anchorPt ) <- getOrCreateDrawAnchor uniqueSupply pos doc
|
||||
STM.writeTVar partialPathTVar
|
||||
( Just $ PartialPath
|
||||
{ partialStartPos = anchorPt
|
||||
, partialControlPoint = Nothing
|
||||
, partialPathAnchor = drawAnchor
|
||||
, firstPoint = True
|
||||
}
|
||||
)
|
||||
pure ( UpdateDocTo $ Just newDoc )
|
||||
-- Path already started: indicate that we are continuing a path.
|
||||
Just pp -> do
|
||||
STM.writeTVar partialPathTVar ( Just $ pp { firstPoint = False } )
|
||||
pure Don'tModifyDoc
|
||||
|
||||
RulerOrigin ruler -> do
|
||||
let
|
||||
mbGuide :: Maybe Guide
|
||||
mbGuide = selectGuide pos doc
|
||||
guideAction :: GuideAction
|
||||
guideAction
|
||||
| Just guide <- mbGuide
|
||||
= MoveGuide ( guideUnique guide )
|
||||
| otherwise
|
||||
= CreateGuide ruler
|
||||
STM.writeTVar mouseHoldTVar ( Just $ GuideAction { holdStartPos = pos, guideAction } )
|
||||
pure Don'tModifyDoc
|
||||
|
||||
-- Right mouse button: end partial path.
|
||||
3 -> do
|
||||
|
@ -621,8 +664,8 @@ data MouseRelease = MouseRelease Word32 ( Point2D Double )
|
|||
|
||||
instance HandleAction MouseRelease where
|
||||
handleAction
|
||||
uiElts@( UIElements { viewportDrawingArea } )
|
||||
vars@( Variables { .. } )
|
||||
uiElts@( UIElements { viewport = Viewport {..} } )
|
||||
vars@( Variables {..} )
|
||||
( MouseRelease button ( Point2D x y ) )
|
||||
= case button of
|
||||
|
||||
|
@ -639,101 +682,138 @@ instance HandleAction MouseRelease where
|
|||
STM.writeTVar mousePosTVar ( Just pos )
|
||||
modifiers <- STM.readTVar modifiersTVar
|
||||
mbHoldPos <- STM.swapTVar mouseHoldTVar Nothing
|
||||
tool <- STM.readTVar toolTVar
|
||||
mode <- STM.readTVar modeTVar
|
||||
|
||||
case tool of
|
||||
case mbHoldPos of
|
||||
Just ( GuideAction { holdStartPos = holdStartPos@( Point2D hx hy ), guideAction } ) -> do
|
||||
newDoc <- case guideAction of
|
||||
CreateGuide ruler
|
||||
| createGuide
|
||||
-> addGuide uniqueSupply ruler pos doc
|
||||
| otherwise
|
||||
-> pure doc
|
||||
where
|
||||
createGuide :: Bool
|
||||
createGuide
|
||||
= x >= 0
|
||||
&& y >= 0
|
||||
&& x <= viewportWidth
|
||||
&& y <= viewportHeight
|
||||
MoveGuide guideUnique
|
||||
| keepGuide
|
||||
-> pure $
|
||||
over
|
||||
( field' @"guides" . ix guideUnique . field' @"guidePoint" )
|
||||
( ( holdStartPos --> pos :: Vector2D Double ) • )
|
||||
doc
|
||||
| otherwise
|
||||
-> pure $ set ( field' @"guides" . at guideUnique ) Nothing doc
|
||||
where
|
||||
l, t :: Double
|
||||
Point2D l t = toViewport ( Point2D 0 0 )
|
||||
keepGuide :: Bool
|
||||
keepGuide
|
||||
= ( x >= 0 || hx < l ) -- mouse hold position (hx,hy) is in document coordinates,
|
||||
&& ( y >= 0 || hy < t ) -- so we must compare it to the point (l,t) instead of (0,0)
|
||||
&& x <= viewportWidth
|
||||
&& y <= viewportHeight
|
||||
pure ( UpdateDocTo ( Just newDoc ) )
|
||||
_ -> do
|
||||
|
||||
Selection -> do
|
||||
let
|
||||
selMode :: SelectionMode
|
||||
selMode = selectionMode modifiers
|
||||
case mbHoldPos of
|
||||
Just hold
|
||||
| DragMoveHold pos0 <- hold
|
||||
, pos0 /= pos
|
||||
-> pure ( UpdateDocTo $ Just $ translateSelection mode ( pos0 --> pos ) doc )
|
||||
| SelectionHold pos0 <- hold
|
||||
, pos0 /= pos
|
||||
-> pure ( UpdateDocTo $ Just $ selectRectangle mode selMode pos0 pos doc )
|
||||
_ -> pure ( UpdateDocTo $ Just $ selectAt mode selMode pos doc )
|
||||
tool <- STM.readTVar toolTVar
|
||||
mode <- STM.readTVar modeTVar
|
||||
|
||||
Pen -> do
|
||||
mbPartialPath <- STM.readTVar partialPathTVar
|
||||
case mbPartialPath of
|
||||
-- Normal pen mode mouse click should have created an anchor.
|
||||
-- If no anchor exists, then just ignore the mouse release event.
|
||||
Nothing -> pure Don'tModifyDoc
|
||||
-- Mouse click release possibilities:
|
||||
--
|
||||
-- - click was on complementary draw stroke draw anchor to close the path,
|
||||
-- - release at same point as click: finish current segment,
|
||||
-- - release at different point as click: finish current segment, adding a control point.
|
||||
Just
|
||||
( PartialPath
|
||||
{ partialStartPos = p1
|
||||
, partialControlPoint = mbCp2
|
||||
, partialPathAnchor = anchor
|
||||
, firstPoint
|
||||
}
|
||||
) -> do
|
||||
case tool of
|
||||
|
||||
Selection -> do
|
||||
let
|
||||
pathPoint :: Point2D Double
|
||||
mbControlPoint :: Maybe ( Point2D Double )
|
||||
partialControlPoint :: Maybe ( Point2D Double )
|
||||
( pathPoint, mbControlPoint, partialControlPoint )
|
||||
| Just ( DrawHold holdPos ) <- mbHoldPos
|
||||
= ( holdPos, Just $ ( pos --> holdPos :: Vector2D Double ) • holdPos, Just pos )
|
||||
| otherwise
|
||||
= ( pos, Nothing, Nothing )
|
||||
( _, otherAnchor, otherAnchorPt ) <- getOrCreateDrawAnchor uniqueSupply pathPoint doc
|
||||
if not firstPoint && anchorsAreComplementary anchor otherAnchor
|
||||
-- Close path.
|
||||
then do
|
||||
STM.writeTVar partialPathTVar Nothing
|
||||
let
|
||||
newSegment :: Seq ( StrokePoint PointData )
|
||||
newSegment
|
||||
= Seq.fromList
|
||||
$ catMaybes
|
||||
[ Just ( PathPoint p1 ( PointData Normal Empty ) )
|
||||
, do
|
||||
cp <- mbCp2
|
||||
guard ( cp /= p1 )
|
||||
pure $ ControlPoint cp ( PointData Normal Empty )
|
||||
, do
|
||||
cp <- mbControlPoint
|
||||
guard ( cp /= otherAnchorPt )
|
||||
pure $ ControlPoint cp ( PointData Normal Empty )
|
||||
, Just ( PathPoint otherAnchorPt ( PointData Normal Empty ) )
|
||||
]
|
||||
pure ( UpdateDocTo $ Just $ addToAnchor anchor newSegment doc )
|
||||
else
|
||||
if firstPoint
|
||||
-- Continue current partial path.
|
||||
then do
|
||||
STM.writeTVar partialPathTVar ( Just $ PartialPath p1 partialControlPoint anchor False )
|
||||
pure Don'tModifyDoc
|
||||
-- Finish current partial path.
|
||||
else do
|
||||
STM.writeTVar partialPathTVar ( Just $ PartialPath pathPoint partialControlPoint anchor False )
|
||||
let
|
||||
newSegment :: Seq ( StrokePoint PointData )
|
||||
newSegment
|
||||
= Seq.fromList
|
||||
$ catMaybes
|
||||
[ Just ( PathPoint p1 ( PointData Normal Empty ) )
|
||||
, do
|
||||
cp <- mbCp2
|
||||
guard ( cp /= p1 )
|
||||
pure $ ControlPoint cp ( PointData Normal Empty )
|
||||
, do
|
||||
cp <- mbControlPoint
|
||||
guard ( cp /= pathPoint )
|
||||
pure $ ControlPoint cp ( PointData Normal Empty )
|
||||
, Just ( PathPoint pathPoint ( PointData Normal Empty ) )
|
||||
]
|
||||
pure ( UpdateDocTo $ Just $ addToAnchor anchor newSegment doc )
|
||||
selMode :: SelectionMode
|
||||
selMode = selectionMode modifiers
|
||||
case mbHoldPos of
|
||||
Just hold
|
||||
| DragMoveHold pos0 <- hold
|
||||
, pos0 /= pos
|
||||
-> pure ( UpdateDocTo $ Just $ translateSelection mode ( pos0 --> pos ) doc )
|
||||
| SelectionHold pos0 <- hold
|
||||
, pos0 /= pos
|
||||
-> pure ( UpdateDocTo $ Just $ selectRectangle mode selMode pos0 pos doc )
|
||||
_ -> pure ( UpdateDocTo $ Just $ selectAt mode selMode pos doc )
|
||||
|
||||
Pen -> do
|
||||
mbPartialPath <- STM.readTVar partialPathTVar
|
||||
case mbPartialPath of
|
||||
-- Normal pen mode mouse click should have created an anchor.
|
||||
-- If no anchor exists, then just ignore the mouse release event.
|
||||
Nothing -> pure Don'tModifyDoc
|
||||
-- Mouse click release possibilities:
|
||||
--
|
||||
-- - click was on complementary draw stroke draw anchor to close the path,
|
||||
-- - release at same point as click: finish current segment,
|
||||
-- - release at different point as click: finish current segment, adding a control point.
|
||||
Just
|
||||
( PartialPath
|
||||
{ partialStartPos = p1
|
||||
, partialControlPoint = mbCp2
|
||||
, partialPathAnchor = anchor
|
||||
, firstPoint
|
||||
}
|
||||
) -> do
|
||||
let
|
||||
pathPoint :: Point2D Double
|
||||
mbControlPoint :: Maybe ( Point2D Double )
|
||||
partialControlPoint :: Maybe ( Point2D Double )
|
||||
( pathPoint, mbControlPoint, partialControlPoint )
|
||||
| Just ( DrawHold holdPos ) <- mbHoldPos
|
||||
= ( holdPos, Just $ ( pos --> holdPos :: Vector2D Double ) • holdPos, Just pos )
|
||||
| otherwise
|
||||
= ( pos, Nothing, Nothing )
|
||||
( _, otherAnchor, otherAnchorPt ) <- getOrCreateDrawAnchor uniqueSupply pathPoint doc
|
||||
if not firstPoint && anchorsAreComplementary anchor otherAnchor
|
||||
-- Close path.
|
||||
then do
|
||||
STM.writeTVar partialPathTVar Nothing
|
||||
let
|
||||
newSegment :: Seq ( StrokePoint PointData )
|
||||
newSegment
|
||||
= Seq.fromList
|
||||
$ catMaybes
|
||||
[ Just ( PathPoint p1 ( PointData Normal Empty ) )
|
||||
, do
|
||||
cp <- mbCp2
|
||||
guard ( cp /= p1 )
|
||||
pure $ ControlPoint cp ( PointData Normal Empty )
|
||||
, do
|
||||
cp <- mbControlPoint
|
||||
guard ( cp /= otherAnchorPt )
|
||||
pure $ ControlPoint cp ( PointData Normal Empty )
|
||||
, Just ( PathPoint otherAnchorPt ( PointData Normal Empty ) )
|
||||
]
|
||||
pure ( UpdateDocTo $ Just $ addToAnchor anchor newSegment doc )
|
||||
else
|
||||
if firstPoint
|
||||
-- Continue current partial path.
|
||||
then do
|
||||
STM.writeTVar partialPathTVar ( Just $ PartialPath p1 partialControlPoint anchor False )
|
||||
pure Don'tModifyDoc
|
||||
-- Finish current partial path.
|
||||
else do
|
||||
STM.writeTVar partialPathTVar ( Just $ PartialPath pathPoint partialControlPoint anchor False )
|
||||
let
|
||||
newSegment :: Seq ( StrokePoint PointData )
|
||||
newSegment
|
||||
= Seq.fromList
|
||||
$ catMaybes
|
||||
[ Just ( PathPoint p1 ( PointData Normal Empty ) )
|
||||
, do
|
||||
cp <- mbCp2
|
||||
guard ( cp /= p1 )
|
||||
pure $ ControlPoint cp ( PointData Normal Empty )
|
||||
, do
|
||||
cp <- mbControlPoint
|
||||
guard ( cp /= pathPoint )
|
||||
pure $ ControlPoint cp ( PointData Normal Empty )
|
||||
, Just ( PathPoint pathPoint ( PointData Normal Empty ) )
|
||||
]
|
||||
pure ( UpdateDocTo $ Just $ addToAnchor anchor newSegment doc )
|
||||
|
||||
-- Other mouse buttons: ignored (for the moment at least).
|
||||
_ -> pure ()
|
||||
|
@ -746,59 +826,62 @@ data Scroll = Scroll ( Point2D Double ) ( Vector2D Double )
|
|||
deriving stock Show
|
||||
|
||||
instance HandleAction Scroll where
|
||||
handleAction uiElts@( UIElements { .. } ) vars@( Variables { .. } ) ( Scroll ( Point2D x y ) ( Vector2D dx dy ) ) = do
|
||||
handleAction
|
||||
uiElts@( UIElements { viewport = Viewport {..}, .. } )
|
||||
vars@( Variables {..} )
|
||||
( Scroll ( Point2D x y ) ( Vector2D dx dy ) ) = do
|
||||
|
||||
viewportWidth <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedWidth viewportDrawingArea
|
||||
viewportHeight <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedHeight viewportDrawingArea
|
||||
viewportWidth <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedWidth viewportDrawingArea
|
||||
viewportHeight <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedHeight viewportDrawingArea
|
||||
|
||||
unless ( dx == 0 && dy == 0 ) do
|
||||
modifyingCurrentDocument uiElts vars \ ( doc@( Document { viewportCenter = oldCenter, zoomFactor = oldZoomFactor } ) ) -> do
|
||||
modifiers <- STM.readTVar modifiersTVar
|
||||
let
|
||||
toViewport :: Point2D Double -> Point2D Double
|
||||
toViewport = toViewportCoordinates oldZoomFactor ( viewportWidth, viewportHeight ) oldCenter
|
||||
-- Mouse position in the coordinate system of the document (not the drawing area GTK coordinates)
|
||||
mousePos :: Point2D Double
|
||||
mousePos = toViewport ( Point2D x y )
|
||||
newDoc :: Document
|
||||
newDoc
|
||||
-- Zooming using 'Control'.
|
||||
| any ( \ case { Control _ -> True; _ -> False } ) modifiers
|
||||
= let
|
||||
newZoomFactor :: Double
|
||||
newZoomFactor
|
||||
| dy > 0
|
||||
= max 0.0078125 ( oldZoomFactor / sqrt 2 )
|
||||
| otherwise
|
||||
= min 256 ( oldZoomFactor * sqrt 2 )
|
||||
newCenter :: Point2D Double
|
||||
newCenter
|
||||
= ( 1 - oldZoomFactor / newZoomFactor ) *^ ( oldCenter --> mousePos :: Vector2D Double )
|
||||
• oldCenter
|
||||
in doc { zoomFactor = newZoomFactor, viewportCenter = newCenter }
|
||||
-- Vertical scrolling turned into horizontal scrolling using 'Shift'.
|
||||
| dx == 0 && any ( \ case { Shift _ -> True; _ -> False } ) modifiers
|
||||
= let
|
||||
newCenter :: Point2D Double
|
||||
newCenter = ( ( 25 / oldZoomFactor ) *^ Vector2D dy 0 ) • oldCenter
|
||||
in doc { viewportCenter = newCenter }
|
||||
-- Vertical scrolling.
|
||||
| otherwise
|
||||
= let
|
||||
newCenter :: Point2D Double
|
||||
newCenter = ( ( 25 / oldZoomFactor ) *^ Vector2D dx dy ) • oldCenter
|
||||
in doc { viewportCenter = newCenter }
|
||||
finalZoomFactor :: Double
|
||||
finalZoomFactor = zoomFactor newDoc
|
||||
finalCenter :: Point2D Double
|
||||
finalCenter = viewportCenter newDoc
|
||||
toFinalViewport :: Point2D Double -> Point2D Double
|
||||
toFinalViewport = toViewportCoordinates finalZoomFactor ( viewportWidth, viewportHeight ) finalCenter
|
||||
finalMousePos :: Point2D Double
|
||||
finalMousePos = toFinalViewport ( Point2D x y )
|
||||
STM.writeTVar mousePosTVar ( Just finalMousePos )
|
||||
pure ( UpdateDocTo $ Just newDoc )
|
||||
updateInfoBar viewportDrawingArea infoBar vars
|
||||
unless ( dx == 0 && dy == 0 ) do
|
||||
modifyingCurrentDocument uiElts vars \ ( doc@( Document { viewportCenter = oldCenter, zoomFactor = oldZoomFactor } ) ) -> do
|
||||
modifiers <- STM.readTVar modifiersTVar
|
||||
let
|
||||
toViewport :: Point2D Double -> Point2D Double
|
||||
toViewport = toViewportCoordinates oldZoomFactor ( viewportWidth, viewportHeight ) oldCenter
|
||||
-- Mouse position in the coordinate system of the document (not the drawing area GTK coordinates)
|
||||
mousePos :: Point2D Double
|
||||
mousePos = toViewport ( Point2D x y )
|
||||
newDoc :: Document
|
||||
newDoc
|
||||
-- Zooming using 'Control'.
|
||||
| any ( \ case { Control _ -> True; _ -> False } ) modifiers
|
||||
= let
|
||||
newZoomFactor :: Double
|
||||
newZoomFactor
|
||||
| dy > 0
|
||||
= max 0.0078125 ( oldZoomFactor / sqrt 2 )
|
||||
| otherwise
|
||||
= min 256 ( oldZoomFactor * sqrt 2 )
|
||||
newCenter :: Point2D Double
|
||||
newCenter
|
||||
= ( 1 - oldZoomFactor / newZoomFactor ) *^ ( oldCenter --> mousePos :: Vector2D Double )
|
||||
• oldCenter
|
||||
in doc { zoomFactor = newZoomFactor, viewportCenter = newCenter }
|
||||
-- Vertical scrolling turned into horizontal scrolling using 'Shift'.
|
||||
| dx == 0 && any ( \ case { Shift _ -> True; _ -> False } ) modifiers
|
||||
= let
|
||||
newCenter :: Point2D Double
|
||||
newCenter = ( ( 25 / oldZoomFactor ) *^ Vector2D dy 0 ) • oldCenter
|
||||
in doc { viewportCenter = newCenter }
|
||||
-- Vertical scrolling.
|
||||
| otherwise
|
||||
= let
|
||||
newCenter :: Point2D Double
|
||||
newCenter = ( ( 25 / oldZoomFactor ) *^ Vector2D dx dy ) • oldCenter
|
||||
in doc { viewportCenter = newCenter }
|
||||
finalZoomFactor :: Double
|
||||
finalZoomFactor = zoomFactor newDoc
|
||||
finalCenter :: Point2D Double
|
||||
finalCenter = viewportCenter newDoc
|
||||
toFinalViewport :: Point2D Double -> Point2D Double
|
||||
toFinalViewport = toViewportCoordinates finalZoomFactor ( viewportWidth, viewportHeight ) finalCenter
|
||||
finalMousePos :: Point2D Double
|
||||
finalMousePos = toFinalViewport ( Point2D x y )
|
||||
STM.writeTVar mousePosTVar ( Just finalMousePos )
|
||||
pure ( UpdateDocTo $ Just newDoc )
|
||||
updateInfoBar viewportDrawingArea infoBar vars
|
||||
|
||||
--------------------
|
||||
-- Keyboard press --
|
||||
|
@ -808,47 +891,50 @@ data KeyboardPress = KeyboardPress Word32
|
|||
deriving stock Show
|
||||
|
||||
instance HandleAction KeyboardPress where
|
||||
handleAction uiElts@( UIElements { .. } ) vars@( Variables { .. } ) ( KeyboardPress keyCode ) = do
|
||||
handleAction
|
||||
uiElts@( UIElements { viewport = Viewport {..}, .. } )
|
||||
vars@( Variables {..} )
|
||||
( KeyboardPress keyCode ) = do
|
||||
|
||||
modifiers <- STM.atomically do
|
||||
!modifiers <- STM.readTVar modifiersTVar
|
||||
for_ ( modifierKey keyCode ) \ modifier ->
|
||||
( STM.writeTVar modifiersTVar ( Set.insert modifier modifiers ) )
|
||||
pure modifiers
|
||||
modifiers <- STM.atomically do
|
||||
!modifiers <- STM.readTVar modifiersTVar
|
||||
for_ ( modifierKey keyCode ) \ modifier ->
|
||||
( STM.writeTVar modifiersTVar ( Set.insert modifier modifiers ) )
|
||||
pure modifiers
|
||||
|
||||
case keyCode of
|
||||
case keyCode of
|
||||
|
||||
GDK.KEY_Escape -> handleAction uiElts vars Quit
|
||||
GDK.KEY_Escape -> handleAction uiElts vars Quit
|
||||
|
||||
GDK.KEY_Return -> handleAction uiElts vars Confirm
|
||||
GDK.KEY_Return -> handleAction uiElts vars Confirm
|
||||
|
||||
ctrl
|
||||
| ctrl == GDK.KEY_Control_L || ctrl == GDK.KEY_Control_R
|
||||
-> do
|
||||
----------------------------------------------------------
|
||||
-- With the pen tool, pressing control moves
|
||||
-- the partial point control point to the mouse position.
|
||||
tool <- STM.readTVarIO toolTVar
|
||||
mbMousePos <- STM.readTVarIO mousePosTVar
|
||||
mbPartialPath <- STM.readTVarIO partialPathTVar
|
||||
case tool of
|
||||
Pen
|
||||
| Just mp <- mbMousePos
|
||||
, Just pp <- mbPartialPath
|
||||
-> do
|
||||
STM.atomically $ STM.writeTVar partialPathTVar ( Just $ pp { partialControlPoint = Just mp } )
|
||||
GTK.widgetQueueDraw viewportDrawingArea
|
||||
_ -> pure ()
|
||||
ctrl
|
||||
| ctrl == GDK.KEY_Control_L || ctrl == GDK.KEY_Control_R
|
||||
-> do
|
||||
----------------------------------------------------------
|
||||
-- With the pen tool, pressing control moves
|
||||
-- the partial point control point to the mouse position.
|
||||
tool <- STM.readTVarIO toolTVar
|
||||
mbMousePos <- STM.readTVarIO mousePosTVar
|
||||
mbPartialPath <- STM.readTVarIO partialPathTVar
|
||||
case tool of
|
||||
Pen
|
||||
| Just mp <- mbMousePos
|
||||
, Just pp <- mbPartialPath
|
||||
-> do
|
||||
STM.atomically $ STM.writeTVar partialPathTVar ( Just $ pp { partialControlPoint = Just mp } )
|
||||
GTK.widgetQueueDraw viewportDrawingArea
|
||||
_ -> pure ()
|
||||
|
||||
-- todo: these should be handled by accelerator,
|
||||
-- but those are not working currently
|
||||
GDK.KEY_Delete -> handleAction uiElts vars Delete
|
||||
-- todo: these should be handled by accelerator,
|
||||
-- but those are not working currently
|
||||
GDK.KEY_Delete -> handleAction uiElts vars Delete
|
||||
|
||||
GDK.KEY_s
|
||||
| any ( \case { Control _ -> True; _ -> False } ) modifiers
|
||||
-> handleAction uiElts vars Save
|
||||
GDK.KEY_s
|
||||
| any ( \case { Control _ -> True; _ -> False } ) modifiers
|
||||
-> handleAction uiElts vars Save
|
||||
|
||||
_ -> pure ()
|
||||
_ -> pure ()
|
||||
|
||||
----------------------
|
||||
-- Keyboard release --
|
||||
|
|
|
@ -22,7 +22,7 @@ import MetaBrush.Util
|
|||
|
||||
-- | "Close tab" button.
|
||||
drawCloseTabButton :: Colours -> Bool -> [ GTK.StateFlags ] -> Cairo.Render Bool
|
||||
drawCloseTabButton ( Colours { .. } ) unsavedChanges flags = do
|
||||
drawCloseTabButton ( Colours {..} ) unsavedChanges flags = do
|
||||
|
||||
Cairo.setLineCap Cairo.LineCapRound
|
||||
Cairo.setLineJoin Cairo.LineJoinMiter
|
||||
|
|
|
@ -36,7 +36,7 @@ data ColourRecord a
|
|||
, path, brush, brushStroke, brushCenter
|
||||
, pointHover, pointSelected
|
||||
, viewport, viewportScrollbar, tabScrollbar
|
||||
, magnifier, glass
|
||||
, guide, magnifier, glass
|
||||
, selected, selectedOutline :: !a
|
||||
}
|
||||
deriving stock ( Show, Functor, Foldable, Traversable )
|
||||
|
@ -78,6 +78,7 @@ colourNames = Colours
|
|||
, viewport = ColourName "viewport" BackgroundColour [ GTK.StateFlagsNormal ]
|
||||
, viewportScrollbar = ColourName "viewportScrollbar" BackgroundColour [ GTK.StateFlagsNormal ]
|
||||
, tabScrollbar = ColourName "tabScrollbar" BackgroundColour [ GTK.StateFlagsNormal ]
|
||||
, guide = ColourName "guide" Colour [ GTK.StateFlagsNormal ]
|
||||
, magnifier = ColourName "magnifier" Colour [ GTK.StateFlagsNormal ]
|
||||
, glass = ColourName "glass" Colour [ GTK.StateFlagsNormal ]
|
||||
, selected = ColourName "selected" Colour [ GTK.StateFlagsNormal ]
|
||||
|
@ -88,7 +89,7 @@ type Colours = ColourRecord GDK.RGBA
|
|||
|
||||
getColours :: GTK.WidgetPath -> IO Colours
|
||||
getColours windowWidgetPath =
|
||||
for colourNames \ ( ColourName { .. } ) -> do
|
||||
for colourNames \ ( ColourName {..} ) -> do
|
||||
style <- GTK.styleContextNew
|
||||
GTK.styleContextSetPath style windowWidgetPath
|
||||
GTK.styleContextAddClass style colourName
|
||||
|
|
|
@ -100,7 +100,7 @@ drawMeta ( Colours { splash } ) = do
|
|||
|
||||
-- | Path icon. Width = 40 height = 40.
|
||||
drawPath :: Colours -> Cairo.Render Bool
|
||||
drawPath ( Colours { .. } ) = do
|
||||
drawPath ( Colours {..} ) = do
|
||||
|
||||
Cairo.setLineCap Cairo.LineCapRound
|
||||
Cairo.setLineJoin Cairo.LineJoinMiter
|
||||
|
|
|
@ -11,7 +11,7 @@
|
|||
module MetaBrush.Context
|
||||
( UIElements(..), Variables(..)
|
||||
, LR(..), Modifier(..), modifierKey, modifierType
|
||||
, HoldAction(..), PartialPath(..)
|
||||
, HoldAction(..), GuideAction(..), PartialPath(..)
|
||||
, currentDocument, withCurrentDocument
|
||||
, PureDocModification(..), DocModification(..)
|
||||
, modifyingCurrentDocument
|
||||
|
@ -76,6 +76,8 @@ import {-# SOURCE #-} MetaBrush.UI.InfoBar
|
|||
( InfoBar, updateInfoBar )
|
||||
import MetaBrush.UI.ToolBar
|
||||
( Tool, Mode )
|
||||
import MetaBrush.UI.Viewport
|
||||
( Viewport(..), Ruler(..) )
|
||||
import MetaBrush.Unique
|
||||
( UniqueSupply, Unique )
|
||||
import MetaBrush.Util
|
||||
|
@ -85,13 +87,13 @@ import MetaBrush.Util
|
|||
|
||||
data UIElements
|
||||
= UIElements
|
||||
{ window :: !GTK.Window
|
||||
, title :: !GTK.Label
|
||||
, titleBar :: !GTK.Box
|
||||
, fileBar :: !FileBar
|
||||
, viewportDrawingArea :: !GTK.DrawingArea
|
||||
, infoBar :: !InfoBar
|
||||
, colours :: !Colours
|
||||
{ window :: !GTK.Window
|
||||
, title :: !GTK.Label
|
||||
, titleBar :: !GTK.Box
|
||||
, fileBar :: !FileBar
|
||||
, viewport :: !Viewport
|
||||
, infoBar :: !InfoBar
|
||||
, colours :: !Colours
|
||||
}
|
||||
|
||||
data Variables
|
||||
|
@ -133,15 +135,25 @@ modifierType ( Control _ ) = GDK.ModifierTypeControlMask
|
|||
modifierType ( Alt _ ) = GDK.ModifierTypeMod1Mask
|
||||
modifierType ( Shift _ ) = GDK.ModifierTypeShiftMask
|
||||
|
||||
|
||||
data GuideAction
|
||||
= CreateGuide !Ruler
|
||||
| MoveGuide !Unique
|
||||
deriving stock Show
|
||||
|
||||
-- | Keep track of a mouse hold action:
|
||||
--
|
||||
-- - start a rectangular selection,
|
||||
-- - move objects by dragging,
|
||||
-- - drawing a control point.
|
||||
-- - drawing a control point,
|
||||
-- - create/modify a guide.
|
||||
data HoldAction
|
||||
= SelectionHold { holdStartPos :: !( Point2D Double ) }
|
||||
| DragMoveHold { holdStartPos :: !( Point2D Double ) }
|
||||
| DrawHold { holdStartPos :: !( Point2D Double ) }
|
||||
| GuideAction { holdStartPos :: !( Point2D Double )
|
||||
, guideAction :: !GuideAction
|
||||
}
|
||||
deriving stock Show
|
||||
|
||||
-- | Keep track of a path that is in the middle of being drawn.
|
||||
|
@ -197,7 +209,7 @@ instance DocumentModification DocModification where
|
|||
--
|
||||
-- Does nothing if no document is currently active.
|
||||
modifyingCurrentDocument :: DocumentModification modif => UIElements -> Variables -> ( Document -> STM modif ) -> IO ()
|
||||
modifyingCurrentDocument ( UIElements { .. } ) vars@( Variables { .. } ) f = do
|
||||
modifyingCurrentDocument ( UIElements { viewport = Viewport {..}, .. } ) vars@( Variables {..} ) f = do
|
||||
mbAction <- STM.atomically . runMaybeT $ do
|
||||
unique <- MaybeT ( STM.readTVar activeDocumentTVar )
|
||||
oldDoc <- MaybeT ( Map.lookup unique <$> STM.readTVar openDocumentsTVar )
|
||||
|
@ -219,6 +231,8 @@ modifyingCurrentDocument ( UIElements { .. } ) vars@( Variables { .. } ) f = do
|
|||
Just ( Document { displayName, unsavedChanges } ) -> do
|
||||
updateTitle window title ( Just ( displayName, unsavedChanges ) )
|
||||
GTK.widgetQueueDraw viewportDrawingArea
|
||||
for_ [ rulerCornerDrawingArea, topRulerDrawingArea, leftRulerDrawingArea ] \ drawingArea -> do
|
||||
GTK.widgetQueueDraw drawingArea
|
||||
for_ mbActiveTab GTK.widgetQueueDraw
|
||||
sequenceAOf_ actionFold modif
|
||||
sequenceA_ mbAction
|
||||
|
|
|
@ -9,7 +9,7 @@
|
|||
module MetaBrush.Document
|
||||
( AABB(..)
|
||||
, Document(..), emptyDocument
|
||||
, Stroke(..)
|
||||
, Stroke(..), Guide(..)
|
||||
, PointData(..), BrushPointData(..)
|
||||
, FocusState(..)
|
||||
, _selection, _brush
|
||||
|
@ -21,6 +21,10 @@ import GHC.Generics
|
|||
( Generic )
|
||||
|
||||
-- containers
|
||||
import Data.Map.Strict
|
||||
( Map )
|
||||
import qualified Data.Map.Strict as Map
|
||||
( empty )
|
||||
import Data.Sequence
|
||||
( Seq )
|
||||
|
||||
|
@ -42,7 +46,7 @@ import Data.Text
|
|||
import Math.Bezier.Stroke
|
||||
( StrokePoint(..) )
|
||||
import Math.Vector2D
|
||||
( Point2D(..) )
|
||||
( Point2D(..), Vector2D(..) )
|
||||
import MetaBrush.Unique
|
||||
( Unique )
|
||||
|
||||
|
@ -62,6 +66,7 @@ data Document
|
|||
, zoomFactor :: !Double
|
||||
, documentUnique :: Unique
|
||||
, strokes :: ![ Stroke ]
|
||||
, guides :: !( Map Unique Guide )
|
||||
}
|
||||
deriving stock ( Show, Generic )
|
||||
|
||||
|
@ -74,6 +79,14 @@ data Stroke
|
|||
}
|
||||
deriving stock ( Show, Generic )
|
||||
|
||||
data Guide
|
||||
= Guide
|
||||
{ guidePoint :: !( Point2D Double ) -- ^ point on the guide line
|
||||
, guideNormal :: !( Vector2D Double ) -- ^ /normalised/ normal vector of the guide
|
||||
, guideUnique :: Unique
|
||||
}
|
||||
deriving stock ( Show, Generic )
|
||||
|
||||
data PointData
|
||||
= PointData
|
||||
{ pointState :: FocusState
|
||||
|
@ -108,4 +121,5 @@ emptyDocument docName unique =
|
|||
, zoomFactor = 1
|
||||
, documentUnique = unique
|
||||
, strokes = []
|
||||
, guides = Map.empty
|
||||
}
|
||||
|
|
91
src/app/MetaBrush/Document/Guide.hs
Normal file
91
src/app/MetaBrush/Document/Guide.hs
Normal file
|
@ -0,0 +1,91 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE LambdaCase #-}
|
||||
{-# LANGUAGE NamedFieldPuns #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
|
||||
module MetaBrush.Document.Guide
|
||||
( selectGuide, addGuide )
|
||||
where
|
||||
|
||||
-- base
|
||||
import Data.Semigroup
|
||||
( Arg(..), Min(..), ArgMin )
|
||||
|
||||
-- acts
|
||||
import Data.Act
|
||||
( Torsor((-->)) )
|
||||
|
||||
-- containers
|
||||
import Data.Map.Strict
|
||||
( Map )
|
||||
import qualified Data.Map.Strict as Map
|
||||
( insert )
|
||||
|
||||
-- generic-lens
|
||||
import Data.Generics.Product.Fields
|
||||
( field' )
|
||||
|
||||
-- stm
|
||||
import Control.Concurrent.STM
|
||||
( STM )
|
||||
|
||||
-- MetaBrush
|
||||
import Math.Module
|
||||
( Inner((^.^)), squaredNorm )
|
||||
import Math.Vector2D
|
||||
( Point2D(..), Vector2D(..) )
|
||||
import MetaBrush.Document
|
||||
( Document(..), Guide(..)
|
||||
)
|
||||
import MetaBrush.UI.Viewport
|
||||
( Ruler(..) )
|
||||
import MetaBrush.Unique
|
||||
( UniqueSupply, Unique, freshUnique )
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
-- | Try to select a guide at the given document coordinates.
|
||||
selectGuide :: Point2D Double -> Document -> Maybe Guide
|
||||
selectGuide c ( Document { zoomFactor, guides } ) = \case { Min ( Arg _ g ) -> g } <$> foldMap f guides
|
||||
where
|
||||
f :: Guide -> Maybe ( ArgMin Double Guide )
|
||||
f guide@( Guide { guidePoint = p, guideNormal = n } )
|
||||
| sqDist * zoomFactor ^ ( 2 :: Int ) < 4
|
||||
= Just ( Min ( Arg sqDist guide ) )
|
||||
| otherwise
|
||||
= Nothing
|
||||
where
|
||||
t :: Double
|
||||
t = ( c --> p ) ^.^ n
|
||||
sqDist :: Double
|
||||
sqDist = t ^ ( 2 :: Int ) / squaredNorm n
|
||||
|
||||
-- | Add new guide after a mouse drag from a ruler area.
|
||||
addGuide :: UniqueSupply -> Ruler -> Point2D Double -> Document -> STM Document
|
||||
addGuide uniqueSupply ruler p = ( field' @"guides" ) insertNewGuides
|
||||
where
|
||||
insertNewGuides :: Map Unique Guide -> STM ( Map Unique Guide )
|
||||
insertNewGuides gs = case ruler of
|
||||
RulerCorner
|
||||
-> do
|
||||
uniq1 <- freshUnique uniqueSupply
|
||||
uniq2 <- freshUnique uniqueSupply
|
||||
let
|
||||
guide1, guide2 :: Guide
|
||||
guide1 = Guide { guidePoint = p, guideNormal = Vector2D 0 1, guideUnique = uniq1 }
|
||||
guide2 = Guide { guidePoint = p, guideNormal = Vector2D 1 0, guideUnique = uniq2 }
|
||||
pure ( Map.insert uniq2 guide2 . Map.insert uniq1 guide1 $ gs )
|
||||
TopRuler
|
||||
-> do
|
||||
uniq1 <- freshUnique uniqueSupply
|
||||
let
|
||||
guide1 :: Guide
|
||||
guide1 = Guide { guidePoint = p, guideNormal = Vector2D 0 1, guideUnique = uniq1 }
|
||||
pure ( Map.insert uniq1 guide1 gs )
|
||||
LeftRuler
|
||||
-> do
|
||||
uniq2 <- freshUnique uniqueSupply
|
||||
let
|
||||
guide2 :: Guide
|
||||
guide2 = Guide { guidePoint = p, guideNormal = Vector2D 1 0, guideUnique = uniq2 }
|
||||
pure ( Map.insert uniq2 guide2 gs )
|
|
@ -1,4 +1,5 @@
|
|||
{-# LANGUAGE BlockArguments #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE LambdaCase #-}
|
||||
{-# LANGUAGE NamedFieldPuns #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
|
@ -11,6 +12,8 @@ module MetaBrush.Document.Serialise
|
|||
where
|
||||
|
||||
-- base
|
||||
import Control.Arrow
|
||||
( (&&&) )
|
||||
import Control.Monad
|
||||
( unless )
|
||||
import qualified Data.Bifunctor as Bifunctor
|
||||
|
@ -39,6 +42,10 @@ import qualified Data.ByteString.Lazy.Builder as Lazy.ByteString.Builder
|
|||
( toLazyByteString )
|
||||
|
||||
-- containers
|
||||
import Data.Map.Strict
|
||||
( Map )
|
||||
import qualified Data.Map.Strict as Map
|
||||
( fromList, elems )
|
||||
import Data.Sequence
|
||||
( Seq )
|
||||
import qualified Data.Sequence as Seq
|
||||
|
@ -52,6 +59,14 @@ import System.Directory
|
|||
import System.FilePath
|
||||
( takeDirectory )
|
||||
|
||||
-- generic-lens
|
||||
import Data.Generics.Product.Typed
|
||||
( HasType(typed) )
|
||||
|
||||
-- lens
|
||||
import Control.Lens
|
||||
( view )
|
||||
|
||||
-- scientific
|
||||
import qualified Data.Scientific as Scientific
|
||||
( fromFloatDigits, toRealFloat )
|
||||
|
@ -102,16 +117,17 @@ import qualified Waargonaut.Prettier as TonyMorris
|
|||
import Math.Bezier.Stroke
|
||||
( StrokePoint(..) )
|
||||
import Math.Vector2D
|
||||
( Point2D(..) )
|
||||
( Point2D(..), Vector2D(..) )
|
||||
import MetaBrush.Document
|
||||
( Document(..)
|
||||
, Stroke(..)
|
||||
, Guide(..)
|
||||
, PointData(..)
|
||||
, BrushPointData(..)
|
||||
, FocusState(..)
|
||||
)
|
||||
import MetaBrush.Unique
|
||||
( UniqueSupply, freshUnique )
|
||||
( Unique, UniqueSupply, freshUnique )
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
|
@ -176,7 +192,7 @@ decodePoint2D :: Monad m => JSON.Decoder m a -> JSON.Decoder m ( Point2D a )
|
|||
decodePoint2D dec = Point2D <$> JSON.Decoder.atKey "x" dec <*> JSON.Decoder.atKey "y" dec
|
||||
|
||||
|
||||
{-
|
||||
|
||||
encodeVector2D :: Applicative f => JSON.Encoder' a -> JSON.Encoder f ( Vector2D a )
|
||||
encodeVector2D enc = JSON.Encoder.mapLikeObj \ ( Vector2D x y ) ->
|
||||
JSON.Encoder.atKey' "x" enc x
|
||||
|
@ -186,7 +202,7 @@ decodeVector2D :: Monad m => JSON.Decoder m a -> JSON.Decoder m ( Vector2D a )
|
|||
decodeVector2D dec = Vector2D <$> JSON.Decoder.atKey "x" dec <*> JSON.Decoder.atKey "y" dec
|
||||
|
||||
|
||||
|
||||
{-
|
||||
encodeMat22 :: Applicative f => JSON.Encoder' a -> JSON.Encoder f ( Mat22 a )
|
||||
encodeMat22 enc = JSON.Encoder.mapLikeObj \ ( Mat22 m00 m01 m10 m11 ) ->
|
||||
JSON.Encoder.atKey' "m00" enc m00
|
||||
|
@ -282,6 +298,14 @@ decodeSequence dec = Seq.fromList <$> JSON.Decoder.list dec
|
|||
|
||||
|
||||
|
||||
encodeUniqueMap :: Applicative f => JSON.Encoder f a -> JSON.Encoder f ( Map Unique a )
|
||||
encodeUniqueMap enc = contramap Map.elems ( JSON.Encoder.list enc )
|
||||
|
||||
decodeUniqueMap :: ( Monad m, HasType Unique a ) => JSON.Decoder m a -> JSON.Decoder m ( Map Unique a )
|
||||
decodeUniqueMap dec = Map.fromList . map ( view typed &&& id ) <$> JSON.Decoder.list dec
|
||||
|
||||
|
||||
|
||||
encodePointData :: Applicative f => JSON.Encoder f PointData
|
||||
encodePointData = JSON.Encoder.mapLikeObj \ ( PointData { pointState, brushShape } ) ->
|
||||
JSON.Encoder.atKey' "focus" encodeFocusState pointState
|
||||
|
@ -311,12 +335,27 @@ decodeStroke uniqueSupply = do
|
|||
|
||||
|
||||
|
||||
encodeGuide :: Applicative f => JSON.Encoder f Guide
|
||||
encodeGuide = JSON.Encoder.mapLikeObj \ ( Guide { guidePoint, guideNormal } ) ->
|
||||
JSON.Encoder.atKey' "point" ( encodePoint2D encodeDouble ) guidePoint
|
||||
. JSON.Encoder.atKey' "normal" ( encodeVector2D encodeDouble ) guideNormal
|
||||
|
||||
decodeGuide :: MonadIO m => UniqueSupply -> JSON.Decoder m Guide
|
||||
decodeGuide uniqueSupply = do
|
||||
guidePoint <- JSON.Decoder.atKey "point" ( decodePoint2D decodeDouble )
|
||||
guideNormal <- JSON.Decoder.atKey "normal" ( decodeVector2D decodeDouble )
|
||||
guideUnique <- lift ( liftIO . STM.atomically $ freshUnique uniqueSupply )
|
||||
pure ( Guide { guidePoint, guideNormal, guideUnique } )
|
||||
|
||||
|
||||
|
||||
encodeDocument :: Applicative f => JSON.Encoder f Document
|
||||
encodeDocument = JSON.Encoder.mapLikeObj \ ( Document { displayName, viewportCenter, zoomFactor, strokes } ) ->
|
||||
encodeDocument = JSON.Encoder.mapLikeObj \ ( Document { displayName, viewportCenter, zoomFactor, strokes, guides } ) ->
|
||||
JSON.Encoder.atKey' "name" JSON.Encoder.text displayName
|
||||
. JSON.Encoder.atKey' "center" ( encodePoint2D encodeDouble ) viewportCenter
|
||||
. JSON.Encoder.atKey' "zoom" encodeDouble zoomFactor
|
||||
. JSON.Encoder.atKey' "strokes" ( JSON.Encoder.list encodeStroke ) strokes
|
||||
. JSON.Encoder.atKey' "strokes" ( encodeUniqueMap encodeGuide ) guides
|
||||
|
||||
decodeDocument :: MonadIO m => UniqueSupply -> Maybe FilePath -> JSON.Decoder m Document
|
||||
decodeDocument uniqueSupply mbFilePath = do
|
||||
|
@ -328,4 +367,5 @@ decodeDocument uniqueSupply mbFilePath = do
|
|||
zoomFactor <- JSON.Decoder.atKey "zoom" decodeDouble
|
||||
documentUnique <- lift ( liftIO . STM.atomically $ freshUnique uniqueSupply )
|
||||
strokes <- JSON.Decoder.atKey "strokes" ( JSON.Decoder.list ( decodeStroke uniqueSupply ) )
|
||||
pure ( Document { displayName, mbFilePath, unsavedChanges, viewportCenter, zoomFactor, documentUnique, strokes } )
|
||||
guides <- JSON.Decoder.atKey "guides" ( decodeUniqueMap ( decodeGuide uniqueSupply ) )
|
||||
pure ( Document { displayName, mbFilePath, unsavedChanges, viewportCenter, zoomFactor, documentUnique, strokes, guides } )
|
||||
|
|
|
@ -1,9 +1,15 @@
|
|||
{-# LANGUAGE NamedFieldPuns #-}
|
||||
{-# LANGUAGE DerivingStrategies #-}
|
||||
{-# LANGUAGE RecordWildCards #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
|
||||
module MetaBrush.Event
|
||||
( handleEvents )
|
||||
where
|
||||
|
||||
-- base
|
||||
import Control.Monad
|
||||
( void )
|
||||
|
||||
-- gi-gdk
|
||||
import qualified GI.Gdk as GDK
|
||||
|
||||
|
@ -15,68 +21,96 @@ import Math.Vector2D
|
|||
( Point2D(..), Vector2D(..) )
|
||||
import MetaBrush.Action
|
||||
( HandleAction(..)
|
||||
, ActionOrigin(..)
|
||||
, MouseMove(..), MouseClick(..), MouseRelease(..)
|
||||
, Scroll(..), KeyboardPress(..), KeyboardRelease(..)
|
||||
, quitEverything
|
||||
)
|
||||
import MetaBrush.Context
|
||||
( UIElements(..), Variables(..) )
|
||||
import MetaBrush.UI.Viewport
|
||||
( Viewport(..), Ruler(..) )
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
handleEvents :: UIElements -> Variables -> IO ()
|
||||
handleEvents elts@( UIElements { window, viewportDrawingArea } ) vars = do
|
||||
handleEvents elts@( UIElements { viewport = Viewport {..}, .. } ) vars = do
|
||||
|
||||
-- Mouse events
|
||||
_ <- GTK.onWidgetMotionNotifyEvent viewportDrawingArea ( handleMotionEvent elts vars )
|
||||
_ <- GTK.onWidgetScrollEvent viewportDrawingArea ( handleScrollEvent elts vars )
|
||||
_ <- GTK.onWidgetButtonPressEvent viewportDrawingArea ( handleMouseButtonEvent elts vars )
|
||||
_ <- GTK.onWidgetButtonReleaseEvent viewportDrawingArea ( handleMouseButtonRelease elts vars )
|
||||
onWidgetMouseEvent viewportDrawingArea ViewportOrigin
|
||||
onWidgetMouseEvent rulerCornerDrawingArea ( RulerOrigin RulerCorner )
|
||||
onWidgetMouseEvent leftRulerDrawingArea ( RulerOrigin LeftRuler )
|
||||
onWidgetMouseEvent topRulerDrawingArea ( RulerOrigin TopRuler )
|
||||
|
||||
-- Keyboard events
|
||||
_ <- GTK.onWidgetKeyPressEvent window ( handleKeyboardPressEvent elts vars )
|
||||
_ <- GTK.onWidgetKeyReleaseEvent window ( handleKeyboardReleaseEvent elts vars )
|
||||
void $ GTK.onWidgetKeyPressEvent window ( handleKeyboardPressEvent elts vars )
|
||||
void $ GTK.onWidgetKeyReleaseEvent window ( handleKeyboardReleaseEvent elts vars )
|
||||
|
||||
-- Window quit
|
||||
_ <- GTK.onWidgetDestroy window ( quitEverything window )
|
||||
void $ GTK.onWidgetDestroy window ( quitEverything window )
|
||||
|
||||
pure ()
|
||||
where
|
||||
onWidgetMouseEvent :: GTK.DrawingArea -> ActionOrigin -> IO ()
|
||||
onWidgetMouseEvent drawingArea eventOrigin = do
|
||||
void $ GTK.onWidgetMotionNotifyEvent drawingArea ( handleMotionEvent elts vars eventOrigin )
|
||||
void $ GTK.onWidgetScrollEvent drawingArea ( handleScrollEvent elts vars eventOrigin )
|
||||
void $ GTK.onWidgetButtonPressEvent drawingArea ( handleMouseButtonEvent elts vars eventOrigin )
|
||||
void $ GTK.onWidgetButtonReleaseEvent drawingArea ( handleMouseButtonRelease elts vars eventOrigin )
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
-- Mouse events.
|
||||
|
||||
handleMotionEvent :: UIElements -> Variables -> GDK.EventMotion -> IO Bool
|
||||
handleMotionEvent elts vars eventMotion = do
|
||||
handleMotionEvent :: UIElements -> Variables -> ActionOrigin -> GDK.EventMotion -> IO Bool
|
||||
handleMotionEvent elts vars eventOrigin eventMotion = do
|
||||
x <- GDK.getEventMotionX eventMotion
|
||||
y <- GDK.getEventMotionY eventMotion
|
||||
handleAction elts vars ( MouseMove ( Point2D x y ) )
|
||||
mousePos <- adjustMousePosition ( viewport elts ) eventOrigin ( Point2D x y )
|
||||
handleAction elts vars ( MouseMove mousePos )
|
||||
pure True
|
||||
|
||||
handleScrollEvent :: UIElements -> Variables -> GDK.EventScroll -> IO Bool
|
||||
handleScrollEvent elts vars scrollEvent = do
|
||||
handleScrollEvent :: UIElements -> Variables -> ActionOrigin -> GDK.EventScroll -> IO Bool
|
||||
handleScrollEvent elts vars eventOrigin scrollEvent = do
|
||||
dx <- GDK.getEventScrollDeltaX scrollEvent
|
||||
dy <- GDK.getEventScrollDeltaY scrollEvent
|
||||
x <- GDK.getEventScrollX scrollEvent
|
||||
y <- GDK.getEventScrollY scrollEvent
|
||||
handleAction elts vars ( Scroll ( Point2D x y ) ( Vector2D dx dy ) )
|
||||
mousePos <- adjustMousePosition ( viewport elts ) eventOrigin ( Point2D x y )
|
||||
handleAction elts vars ( Scroll mousePos ( Vector2D dx dy ) )
|
||||
pure False
|
||||
|
||||
handleMouseButtonEvent :: UIElements -> Variables -> GDK.EventButton -> IO Bool
|
||||
handleMouseButtonEvent elts vars mouseClickEvent = do
|
||||
handleMouseButtonEvent :: UIElements -> Variables -> ActionOrigin -> GDK.EventButton -> IO Bool
|
||||
handleMouseButtonEvent elts vars eventOrigin mouseClickEvent = do
|
||||
button <- GDK.getEventButtonButton mouseClickEvent
|
||||
x <- GDK.getEventButtonX mouseClickEvent
|
||||
y <- GDK.getEventButtonY mouseClickEvent
|
||||
handleAction elts vars ( MouseClick button ( Point2D x y ) )
|
||||
mousePos <- adjustMousePosition ( viewport elts ) eventOrigin ( Point2D x y )
|
||||
handleAction elts vars ( MouseClick eventOrigin button mousePos )
|
||||
pure False
|
||||
|
||||
handleMouseButtonRelease :: UIElements -> Variables -> GDK.EventButton -> IO Bool
|
||||
handleMouseButtonRelease elts vars mouseReleaseEvent = do
|
||||
handleMouseButtonRelease :: UIElements -> Variables -> ActionOrigin -> GDK.EventButton -> IO Bool
|
||||
handleMouseButtonRelease elts vars eventOrigin mouseReleaseEvent = do
|
||||
button <- GDK.getEventButtonButton mouseReleaseEvent
|
||||
x <- GDK.getEventButtonX mouseReleaseEvent
|
||||
y <- GDK.getEventButtonY mouseReleaseEvent
|
||||
handleAction elts vars ( MouseRelease button ( Point2D x y ) )
|
||||
mousePos <- adjustMousePosition ( viewport elts ) eventOrigin ( Point2D x y )
|
||||
handleAction elts vars ( MouseRelease button mousePos )
|
||||
pure False
|
||||
|
||||
adjustMousePosition :: Viewport -> ActionOrigin -> Point2D Double -> IO ( Point2D Double )
|
||||
adjustMousePosition _ ViewportOrigin pt = pure pt
|
||||
adjustMousePosition ( Viewport { .. } ) ( RulerOrigin ruler ) ( Point2D x y ) =
|
||||
case ruler of
|
||||
RulerCorner -> do
|
||||
dx <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedWidth rulerCornerDrawingArea
|
||||
dy <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedHeight rulerCornerDrawingArea
|
||||
pure ( Point2D ( x - dx ) ( y - dy ) )
|
||||
LeftRuler -> do
|
||||
dx <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedWidth leftRulerDrawingArea
|
||||
pure ( Point2D ( x - dx ) y )
|
||||
TopRuler -> do
|
||||
dy <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedHeight topRulerDrawingArea
|
||||
pure ( Point2D x ( y - dy ) )
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
-- Keyboard events.
|
||||
|
||||
|
|
|
@ -1,4 +1,5 @@
|
|||
{-# LANGUAGE BlockArguments #-}
|
||||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveTraversable #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE DerivingVia #-}
|
||||
|
@ -8,16 +9,17 @@
|
|||
{-# LANGUAGE NegativeLiterals #-}
|
||||
{-# LANGUAGE RecordWildCards #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
|
||||
module MetaBrush.Render.Document
|
||||
( renderDocument, blankRender )
|
||||
( renderDocument, renderGuides, blankRender )
|
||||
where
|
||||
|
||||
-- base
|
||||
import Control.Monad
|
||||
( guard, when, unless )
|
||||
import Data.Foldable
|
||||
( for_, sequenceA_ )
|
||||
( for_, sequenceA_, toList )
|
||||
import Data.Functor.Compose
|
||||
( Compose(..) )
|
||||
import Data.Int
|
||||
|
@ -36,6 +38,8 @@ import Data.Act
|
|||
)
|
||||
|
||||
-- containers
|
||||
import qualified Data.Map as Map
|
||||
( adjust )
|
||||
import Data.Sequence
|
||||
( Seq(..) )
|
||||
import qualified Data.Sequence as Seq
|
||||
|
@ -46,6 +50,8 @@ import Generic.Data
|
|||
( Generically1(..) )
|
||||
|
||||
-- generic-lens
|
||||
import Data.Generics.Product.Fields
|
||||
( field' )
|
||||
import Data.Generics.Product.Typed
|
||||
( HasType )
|
||||
|
||||
|
@ -54,7 +60,7 @@ import qualified GI.Cairo.Render as Cairo
|
|||
|
||||
-- lens
|
||||
import Control.Lens
|
||||
( view )
|
||||
( view, over )
|
||||
|
||||
-- MetaBrush
|
||||
import qualified Math.Bezier.Cubic as Cubic
|
||||
|
@ -65,13 +71,15 @@ import Math.Bezier.Stroke
|
|||
( StrokePoint(..), stroke )
|
||||
import Math.Vector2D
|
||||
( Point2D(..), Vector2D(..) )
|
||||
import MetaBrush.Action
|
||||
( ActionOrigin(..) )
|
||||
import MetaBrush.Asset.Colours
|
||||
( Colours, ColourRecord(..) )
|
||||
import MetaBrush.Context
|
||||
( HoldAction(..), PartialPath(..) )
|
||||
( HoldAction(..), GuideAction(..), PartialPath(..) )
|
||||
import MetaBrush.Document
|
||||
( Document(..)
|
||||
, Stroke(..), FocusState(..)
|
||||
, Stroke(..), Guide(..), FocusState(..)
|
||||
, PointData(..), BrushPointData(..)
|
||||
, _selection
|
||||
)
|
||||
|
@ -79,6 +87,8 @@ import MetaBrush.Document.Selection
|
|||
( translateSelection )
|
||||
import MetaBrush.UI.ToolBar
|
||||
( Mode(..) )
|
||||
import MetaBrush.UI.Viewport
|
||||
( Ruler(..) )
|
||||
import MetaBrush.Util
|
||||
( withRGBA )
|
||||
|
||||
|
@ -105,7 +115,7 @@ toAll action = Compose ( pure action )
|
|||
--------------------------------------------------------------------------------
|
||||
|
||||
blankRender :: Colours -> Cairo.Render ()
|
||||
blankRender ( Colours { .. } ) = pure ()
|
||||
blankRender ( Colours {..} ) = pure ()
|
||||
|
||||
renderDocument
|
||||
:: Colours -> Mode -> ( Int32, Int32 )
|
||||
|
@ -176,6 +186,73 @@ renderDocument
|
|||
|
||||
pure ()
|
||||
|
||||
renderGuides
|
||||
:: Colours -> ( Int32, Int32 ) -> ActionOrigin -> ( Int32, Int32 )
|
||||
-> Maybe ( Point2D Double ) -> Maybe HoldAction
|
||||
-> Document
|
||||
-> Cairo.Render ()
|
||||
renderGuides
|
||||
cols ( viewportWidth, viewportHeight ) actionOrigin ( width, height )
|
||||
mbMousePos mbHoldEvent
|
||||
( Document { viewportCenter = Point2D cx cy, zoomFactor, guides } ) = do
|
||||
|
||||
let
|
||||
modifiedGuides :: [ Guide ]
|
||||
modifiedGuides
|
||||
| Just ( GuideAction { holdStartPos = mousePos0, guideAction = act } ) <- mbHoldEvent
|
||||
, Just mousePos <- mbMousePos
|
||||
= case act of
|
||||
MoveGuide guideUnique
|
||||
->
|
||||
let
|
||||
translate :: Point2D Double -> Point2D Double
|
||||
translate = ( ( mousePos0 --> mousePos :: Vector2D Double ) • )
|
||||
in toList ( Map.adjust ( over ( field' @"guidePoint" ) translate ) guideUnique guides )
|
||||
CreateGuide ruler
|
||||
-> let
|
||||
addNewGuides :: [ Guide ] -> [ Guide ]
|
||||
addNewGuides gs = case ruler of
|
||||
RulerCorner
|
||||
-> Guide { guidePoint = mousePos, guideNormal = Vector2D 0 1, guideUnique = undefined }
|
||||
: Guide { guidePoint = mousePos, guideNormal = Vector2D 1 0, guideUnique = undefined }
|
||||
: gs
|
||||
LeftRuler
|
||||
-> Guide { guidePoint = mousePos, guideNormal = Vector2D 1 0, guideUnique = undefined }
|
||||
: gs
|
||||
TopRuler
|
||||
-> Guide { guidePoint = mousePos, guideNormal = Vector2D 0 1, guideUnique = undefined }
|
||||
: gs
|
||||
in addNewGuides ( toList guides )
|
||||
| otherwise
|
||||
= toList guides
|
||||
|
||||
Cairo.save
|
||||
Cairo.translate ( 0.5 * fromIntegral viewportWidth ) ( 0.5 * fromIntegral viewportHeight )
|
||||
additionalAdjustment
|
||||
Cairo.scale zoomFactor zoomFactor
|
||||
Cairo.translate ( -cx ) ( -cy )
|
||||
|
||||
for_ modifiedGuides ( renderGuide cols zoomFactor )
|
||||
|
||||
Cairo.restore
|
||||
|
||||
pure ()
|
||||
|
||||
where
|
||||
dx, dy :: Double
|
||||
dx = fromIntegral width
|
||||
dy = fromIntegral height
|
||||
additionalAdjustment :: Cairo.Render ()
|
||||
additionalAdjustment = case actionOrigin of
|
||||
ViewportOrigin -> pure ()
|
||||
RulerOrigin ruler -> case ruler of
|
||||
RulerCorner -> do
|
||||
Cairo.translate dx dy
|
||||
LeftRuler -> do
|
||||
Cairo.translate dx 0
|
||||
TopRuler -> do
|
||||
Cairo.translate 0 dy
|
||||
|
||||
renderStroke :: Colours -> Mode -> Double -> Stroke -> Compose Renders Cairo.Render ()
|
||||
renderStroke cols@( Colours { brush } ) mode zoom ( Stroke { strokePoints = pts, strokeVisible } )
|
||||
| strokeVisible
|
||||
|
@ -276,8 +353,24 @@ renderBrushShape cols zoom pt =
|
|||
*> Compose blank { renderPPts = drawCross cols zoom }
|
||||
*> toAll Cairo.restore
|
||||
|
||||
renderGuide :: Colours -> Double -> Guide -> Cairo.Render ()
|
||||
renderGuide ( Colours {..} ) zoom ( Guide { guidePoint = Point2D x y , guideNormal = Vector2D nx ny } ) = do
|
||||
|
||||
Cairo.save
|
||||
Cairo.translate x y
|
||||
Cairo.scale ( 1 / zoom ) ( 1 / zoom )
|
||||
|
||||
Cairo.setLineWidth 2.0
|
||||
withRGBA guide Cairo.setSourceRGBA
|
||||
|
||||
Cairo.moveTo ( 1e5 * ny ) ( -1e5 * nx )
|
||||
Cairo.lineTo ( -1e5 * ny ) ( 1e5 * nx )
|
||||
Cairo.stroke
|
||||
|
||||
Cairo.restore
|
||||
|
||||
drawPoint :: HasType FocusState d => Colours -> Double -> StrokePoint d -> Cairo.Render ()
|
||||
drawPoint ( Colours { .. } ) zoom pt@( PathPoint { coords = Point2D x y } )
|
||||
drawPoint ( Colours {..} ) zoom pt@( PathPoint { coords = Point2D x y } )
|
||||
= do
|
||||
let
|
||||
hsqrt3 :: Double
|
||||
|
@ -311,7 +404,7 @@ drawPoint ( Colours { .. } ) zoom pt@( PathPoint { coords = Point2D x y } )
|
|||
|
||||
Cairo.restore
|
||||
|
||||
drawPoint ( Colours { .. } ) zoom pt@( ControlPoint { coords = Point2D x y } )
|
||||
drawPoint ( Colours {..} ) zoom pt@( ControlPoint { coords = Point2D x y } )
|
||||
= do
|
||||
let
|
||||
selectionState :: FocusState
|
||||
|
@ -450,7 +543,7 @@ drawStroke ( Colours { brushStroke } ) strokeData = do
|
|||
go' p0 ps = error $ "drawStroke: unrecognised stroke type\n" <> show ( p0 :<| ps )
|
||||
|
||||
drawSelectionRectangle :: Colours -> Double -> Point2D Double -> Point2D Double -> Cairo.Render ()
|
||||
drawSelectionRectangle ( Colours { .. } ) zoom ( Point2D x0 y0 ) ( Point2D x1 y1 ) = do
|
||||
drawSelectionRectangle ( Colours {..} ) zoom ( Point2D x0 y0 ) ( Point2D x1 y1 ) = do
|
||||
|
||||
Cairo.save
|
||||
|
||||
|
@ -470,7 +563,7 @@ drawSelectionRectangle ( Colours { .. } ) zoom ( Point2D x0 y0 ) ( Point2D x1 y1
|
|||
Cairo.restore
|
||||
|
||||
drawCross :: Colours -> Double -> Cairo.Render ()
|
||||
drawCross ( Colours { .. } ) zoom = do
|
||||
drawCross ( Colours {..} ) zoom = do
|
||||
Cairo.save
|
||||
|
||||
Cairo.setLineWidth 1.5
|
||||
|
|
|
@ -29,7 +29,7 @@ import qualified Math.Bezier.Quadratic as Quadratic
|
|||
import Math.Bezier.Stroke
|
||||
( StrokePoint(..) )
|
||||
import Math.Module
|
||||
( (*^), squaredNorm, closestPointToLine )
|
||||
( (*^), squaredNorm, closestPointToSegment )
|
||||
import Math.Vector2D
|
||||
( Point2D(..), Vector2D(..) )
|
||||
import MetaBrush.Document
|
||||
|
@ -55,19 +55,19 @@ closestPoint c ( Stroke { strokePoints = pt0 :<| pts, strokeVisible = True } ) =
|
|||
-- Line.
|
||||
go ( PathPoint { coords = p0 } )
|
||||
( sp1@( PathPoint { coords = p1 } ) :<| ps )
|
||||
= res ( closestPointToLine @( Vector2D Double ) c p0 p1 )
|
||||
= res ( closestPointToSegment @( Vector2D Double ) c p0 p1 )
|
||||
<> go sp1 ps
|
||||
-- Quadratic Bézier curve.
|
||||
go ( PathPoint { coords = p0 } )
|
||||
( ControlPoint { coords = p1 } :<| sp2@( PathPoint { coords = p2 } ) :<| ps )
|
||||
= fmap ( fmap ( Just . snd ) )
|
||||
( Quadratic.closestPoint @( Vector2D Double ) ( Quadratic.Bezier { .. } ) c )
|
||||
( Quadratic.closestPoint @( Vector2D Double ) ( Quadratic.Bezier {..} ) c )
|
||||
<> go sp2 ps
|
||||
-- Cubic Bézier curve.
|
||||
go ( PathPoint { coords = p0 } )
|
||||
( PathPoint { coords = p1 } :<| PathPoint { coords = p2 } :<| sp3@( PathPoint { coords = p3 } ) :<| ps )
|
||||
= fmap ( fmap ( Just . snd ) )
|
||||
( Cubic.closestPoint @( Vector2D Double ) ( Cubic.Bezier { .. } ) c )
|
||||
( Cubic.closestPoint @( Vector2D Double ) ( Cubic.Bezier {..} ) c )
|
||||
<> go sp3 ps
|
||||
go p0 ps = error $ "closestPoint: unrecognised stroke type\n" <> show ( p0 :<| ps )
|
||||
closestPoint _ _ = Min $ Arg ( 1 / 0 ) Nothing
|
||||
|
|
|
@ -49,7 +49,9 @@ import MetaBrush.Context
|
|||
import MetaBrush.Document
|
||||
( Document(..), emptyDocument )
|
||||
import {-# SOURCE #-} MetaBrush.UI.InfoBar
|
||||
( InfoBar )
|
||||
( InfoBar, updateInfoBar )
|
||||
import MetaBrush.UI.Viewport
|
||||
( Viewport(..) )
|
||||
import MetaBrush.Unique
|
||||
( Unique, freshUnique, uniqueText )
|
||||
import MetaBrush.Util
|
||||
|
@ -78,8 +80,8 @@ newFileTab
|
|||
-> TabLocation
|
||||
-> IO ()
|
||||
newFileTab
|
||||
uiElts@( UIElements { fileBar = FileBar {..}, .. } )
|
||||
vars@( Variables { .. } )
|
||||
uiElts@( UIElements { fileBar = FileBar {..}, viewport = Viewport {..}, .. } )
|
||||
vars@( Variables {..} )
|
||||
mbDoc
|
||||
newTabLoc
|
||||
= do
|
||||
|
@ -157,6 +159,7 @@ newFileTab
|
|||
STM.writeTVar activeDocumentTVar ( Just newUnique )
|
||||
|
||||
GTK.widgetQueueDraw viewportDrawingArea
|
||||
updateInfoBar viewportDrawingArea infoBar vars
|
||||
|
||||
void $ GTK.onButtonClicked pgButton do
|
||||
isActive <- GTK.toggleButtonGetActive pgButton
|
||||
|
@ -181,12 +184,12 @@ newFileTab
|
|||
-- Updates the active document when buttons are clicked.
|
||||
createFileBar
|
||||
:: Colours -> Variables
|
||||
-> GTK.Window -> GTK.Box -> GTK.Label -> GTK.DrawingArea -> InfoBar
|
||||
-> GTK.Window -> GTK.Box -> GTK.Label -> Viewport -> InfoBar
|
||||
-> IO FileBar
|
||||
createFileBar
|
||||
colours
|
||||
vars@( Variables { openDocumentsTVar } )
|
||||
window titleBar title viewportDrawingArea infoBar
|
||||
window titleBar title viewport infoBar
|
||||
= do
|
||||
|
||||
-- Create file bar: box containing scrollable tabs, and a "+" button after it.
|
||||
|
@ -212,9 +215,9 @@ createFileBar
|
|||
|
||||
let
|
||||
fileBar :: FileBar
|
||||
fileBar = FileBar { .. }
|
||||
fileBar = FileBar {..}
|
||||
uiElements :: UIElements
|
||||
uiElements = UIElements { .. }
|
||||
uiElements = UIElements {..}
|
||||
|
||||
documents <- STM.readTVarIO openDocumentsTVar
|
||||
for_ documents \ doc ->
|
||||
|
@ -233,7 +236,7 @@ createFileBar
|
|||
|
||||
-- | Close a document: remove the corresponding file tab from the file bar.
|
||||
removeFileTab :: Variables -> Unique -> IO ()
|
||||
removeFileTab ( Variables { .. } ) docUnique = do
|
||||
removeFileTab ( Variables {..} ) docUnique = do
|
||||
|
||||
cleanupAction <- STM.atomically do
|
||||
-- Remove the tab.
|
||||
|
|
|
@ -17,6 +17,8 @@ import MetaBrush.Document
|
|||
( Document )
|
||||
import {-# SOURCE #-} MetaBrush.UI.InfoBar
|
||||
( InfoBar )
|
||||
import MetaBrush.UI.Viewport
|
||||
( Viewport )
|
||||
import MetaBrush.Unique
|
||||
( Unique )
|
||||
|
||||
|
@ -37,7 +39,7 @@ instance Show TabLocation
|
|||
|
||||
createFileBar
|
||||
:: Colours -> Variables
|
||||
-> GTK.Window -> GTK.Box -> GTK.Label -> GTK.DrawingArea -> InfoBar
|
||||
-> GTK.Window -> GTK.Box -> GTK.Label -> Viewport -> InfoBar
|
||||
-> IO FileBar
|
||||
|
||||
newFileTab
|
||||
|
|
|
@ -96,7 +96,7 @@ createInfoBar colours = do
|
|||
-- Magnifier
|
||||
|
||||
magnifierArea <- GTK.drawingAreaNew
|
||||
zoomText <- GTK.labelNew ( Just " 100.00%" )
|
||||
zoomText <- GTK.labelNew ( Just na )
|
||||
|
||||
GTK.boxPackStart zoomBox magnifierArea True True 0
|
||||
GTK.boxPackStart zoomBox zoomText True True 0
|
||||
|
@ -111,7 +111,7 @@ createInfoBar colours = do
|
|||
-- Cursor position
|
||||
|
||||
cursorPosArea <- GTK.drawingAreaNew
|
||||
cursorPosText <- GTK.labelNew ( Just "x: 0.00\ny: 0.00" )
|
||||
cursorPosText <- GTK.labelNew ( Just $ "x: " <> na <> "\ny: " <> na )
|
||||
|
||||
GTK.boxPackStart cursorPosBox cursorPosArea False False 0
|
||||
GTK.boxPackStart cursorPosBox cursorPosText False False 0
|
||||
|
@ -126,7 +126,7 @@ createInfoBar colours = do
|
|||
-- Top left position
|
||||
|
||||
topLeftPosArea <- GTK.drawingAreaNew
|
||||
topLeftPosText <- GTK.labelNew ( Just "x: 0.00\ny: 0.00" )
|
||||
topLeftPosText <- GTK.labelNew ( Just $ "x: " <> na <> "\ny: " <> na )
|
||||
|
||||
GTK.boxPackStart topLeftPosBox topLeftPosArea False False 0
|
||||
GTK.boxPackStart topLeftPosBox topLeftPosText False False 0
|
||||
|
@ -139,7 +139,7 @@ createInfoBar colours = do
|
|||
-- Bottom right position
|
||||
|
||||
botRightPosArea <- GTK.drawingAreaNew
|
||||
botRightPosText <- GTK.labelNew ( Just "x: 0.000\ny: 0.00" )
|
||||
botRightPosText <- GTK.labelNew ( Just $ "x: " <> na <> "\ny: " <> na )
|
||||
|
||||
GTK.boxPackStart botRightPosBox botRightPosArea False False 0
|
||||
GTK.boxPackStart botRightPosBox botRightPosText False False 0
|
||||
|
@ -159,17 +159,14 @@ createInfoBar colours = do
|
|||
for_ [ zoomText, cursorPosText, topLeftPosText, botRightPosText ] \ info -> do
|
||||
widgetAddClass info "infoBarInfo"
|
||||
|
||||
pure ( InfoBar { .. } )
|
||||
pure ( InfoBar {..} )
|
||||
|
||||
updateInfoBar :: GTK.DrawingArea -> InfoBar -> Variables -> IO ()
|
||||
updateInfoBar viewportDrawingArea ( InfoBar { .. } ) vars@( Variables { mousePosTVar } )
|
||||
updateInfoBar viewportDrawingArea ( InfoBar {..} ) vars@( Variables { mousePosTVar } )
|
||||
= do
|
||||
viewportWidth <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedWidth viewportDrawingArea
|
||||
viewportHeight <- fromIntegral @_ @Double <$> GTK.widgetGetAllocatedHeight viewportDrawingArea
|
||||
mbDoc <- STM.atomically $ currentDocument vars
|
||||
let
|
||||
na :: IsString a => a
|
||||
na = " n/a"
|
||||
case mbDoc of
|
||||
Nothing -> do
|
||||
GTK.labelSetText zoomText $ na
|
||||
|
@ -182,7 +179,7 @@ updateInfoBar viewportDrawingArea ( InfoBar { .. } ) vars@( Variables { mousePos
|
|||
toViewport = toViewportCoordinates zoomFactor ( viewportWidth, viewportHeight ) viewportCenter
|
||||
Point2D l t = toViewport ( Point2D 0 0 )
|
||||
Point2D r b = toViewport ( Point2D viewportWidth viewportHeight )
|
||||
mbMousePos <- fmap toViewport <$> STM.readTVarIO mousePosTVar
|
||||
mbMousePos <- STM.readTVarIO mousePosTVar
|
||||
GTK.labelSetText zoomText $ Text.pack ( fixed 5 2 ( 100 * zoomFactor ) <> "%" )
|
||||
case mbMousePos of
|
||||
Just ( Point2D mx my ) ->
|
||||
|
@ -201,3 +198,6 @@ fixed digitsBefore digitsAfter x = case second tail . break ( == '.' ) $ showFFl
|
|||
r = length bs
|
||||
in
|
||||
replicate ( digitsBefore - l ) ' ' <> as <> "." <> bs <> replicate ( digitsAfter - r ) '0'
|
||||
|
||||
na :: IsString a => a
|
||||
na = " n/a"
|
|
@ -233,7 +233,7 @@ newMenuItem
|
|||
-> GTK.AccelGroup
|
||||
-> MenuItem action submenu Description
|
||||
-> m GTK.MenuItem
|
||||
newMenuItem uiElts vars accelGroup ( MenuItemDescription { .. } ) = do
|
||||
newMenuItem uiElts vars accelGroup ( MenuItemDescription {..} ) = do
|
||||
menuItem <- GTK.menuItemNewWithLabel menuItemLabel
|
||||
for_ menuItemAccel \ ( key, modifiers ) -> do
|
||||
GTK.widgetAddAccelerator menuItem "activate" accelGroup key ( map modifierType modifiers ) [ GTK.AccelFlagsVisible ]
|
||||
|
@ -279,7 +279,7 @@ instance ( HandleAction action, HasConstraints CreateMenuItem ( submenu Descript
|
|||
, menuItemSubmenu = submenuItems
|
||||
}
|
||||
instance CreateMenuItem ( Separator Description ) ( Separator Object ) where
|
||||
createMenuItem _ _ _ attachToParent ( SeparatorDescription { .. } ) = do
|
||||
createMenuItem _ _ _ attachToParent ( SeparatorDescription {..} ) = do
|
||||
separator <- GTK.separatorMenuItemNew
|
||||
unless ( null separatorClasses ) do
|
||||
widgetAddClasses separator separatorClasses
|
||||
|
|
|
@ -140,4 +140,4 @@ createToolBar toolTVar modeTVar colours drawingArea toolBar = do
|
|||
$ Cairo.renderWithContext
|
||||
( drawMeta colours )
|
||||
|
||||
pure ( ToolBar { .. } )
|
||||
pure ( ToolBar {..} )
|
||||
|
|
|
@ -1,11 +1,19 @@
|
|||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE RecordWildCards #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE BlockArguments #-}
|
||||
{-# LANGUAGE DerivingStrategies #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE RecordWildCards #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
|
||||
module MetaBrush.UI.Viewport
|
||||
( Viewport(..), createViewport )
|
||||
( Viewport(..), createViewport
|
||||
, Ruler(..)
|
||||
)
|
||||
where
|
||||
|
||||
-- base
|
||||
import Data.Foldable
|
||||
( for_ )
|
||||
|
||||
-- gi-gdk
|
||||
import qualified GI.Gdk as GDK
|
||||
|
||||
|
@ -20,7 +28,11 @@ import MetaBrush.Util
|
|||
|
||||
data Viewport
|
||||
= Viewport
|
||||
{ viewportDrawingArea :: !GTK.DrawingArea
|
||||
{ viewportDrawingArea
|
||||
, rulerCornerDrawingArea
|
||||
, leftRulerDrawingArea
|
||||
, topRulerDrawingArea
|
||||
:: !GTK.DrawingArea
|
||||
}
|
||||
|
||||
createViewport :: GTK.Grid -> IO Viewport
|
||||
|
@ -61,14 +73,14 @@ createViewport viewportGrid = do
|
|||
GTK.revealerSetTransitionType rvLeftRuler GTK.RevealerTransitionTypeSlideLeft
|
||||
GTK.revealerSetTransitionType rvTopRuler GTK.RevealerTransitionTypeSlideUp
|
||||
|
||||
rulerCornerArea <- GTK.drawingAreaNew
|
||||
GTK.boxPackStart rulerCorner rulerCornerArea True True 0
|
||||
rulerCornerDrawingArea <- GTK.drawingAreaNew
|
||||
GTK.boxPackStart rulerCorner rulerCornerDrawingArea True True 0
|
||||
|
||||
leftRulerArea <- GTK.drawingAreaNew
|
||||
GTK.boxPackStart leftRuler leftRulerArea True True 0
|
||||
leftRulerDrawingArea <- GTK.drawingAreaNew
|
||||
GTK.boxPackStart leftRuler leftRulerDrawingArea True True 0
|
||||
|
||||
topRulerArea <- GTK.drawingAreaNew
|
||||
GTK.boxPackStart topRuler topRulerArea True True 0
|
||||
topRulerDrawingArea <- GTK.drawingAreaNew
|
||||
GTK.boxPackStart topRuler topRulerDrawingArea True True 0
|
||||
|
||||
GTK.widgetSetHexpand rulerCorner False
|
||||
GTK.widgetSetVexpand rulerCorner False
|
||||
|
@ -81,12 +93,15 @@ createViewport viewportGrid = do
|
|||
|
||||
viewportDrawingArea <- GTK.drawingAreaNew
|
||||
GTK.setContainerChild viewportOverlay viewportDrawingArea
|
||||
GTK.widgetAddEvents viewportDrawingArea
|
||||
[ GDK.EventMaskPointerMotionMask
|
||||
, GDK.EventMaskButtonPressMask, GDK.EventMaskButtonReleaseMask
|
||||
, GDK.EventMaskScrollMask, GDK.EventMaskSmoothScrollMask
|
||||
]
|
||||
|
||||
for_ [ rulerCornerDrawingArea, leftRulerDrawingArea, topRulerDrawingArea, viewportDrawingArea ] \ drawingArea -> do
|
||||
GTK.widgetAddEvents drawingArea
|
||||
[ GDK.EventMaskPointerMotionMask
|
||||
, GDK.EventMaskButtonPressMask, GDK.EventMaskButtonReleaseMask
|
||||
, GDK.EventMaskScrollMask, GDK.EventMaskSmoothScrollMask
|
||||
]
|
||||
|
||||
{-
|
||||
-----------------
|
||||
-- Viewport scrolling
|
||||
|
||||
|
@ -105,4 +120,14 @@ createViewport viewportGrid = do
|
|||
widgetAddClass viewportHScrollbar "viewportScrollbar"
|
||||
widgetAddClass viewportVScrollbar "viewportScrollbar"
|
||||
|
||||
pure ( Viewport { .. } )
|
||||
-}
|
||||
|
||||
pure ( Viewport {..} )
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
data Ruler
|
||||
= RulerCorner
|
||||
| LeftRuler
|
||||
| TopRuler
|
||||
deriving stock Show
|
||||
|
|
|
@ -77,7 +77,7 @@ deriving via Ap Bezier p
|
|||
|
||||
-- | Cubic Bézier curve.
|
||||
bezier :: forall v r p. ( Torsor v p, Module r v ) => Bezier p -> r -> p
|
||||
bezier ( Bezier { .. } ) t =
|
||||
bezier ( Bezier {..} ) t =
|
||||
lerp @v t
|
||||
( Quadratic.bezier @v ( Quadratic.Bezier p0 p1 p2 ) t )
|
||||
( Quadratic.bezier @v ( Quadratic.Bezier p1 p2 p3 ) t )
|
||||
|
@ -85,7 +85,7 @@ bezier ( Bezier { .. } ) t =
|
|||
|
||||
-- | Derivative of cubic Bézier curve.
|
||||
bezier' :: forall v r p. ( Torsor v p, Module r v ) => Bezier p -> r -> v
|
||||
bezier' ( Bezier { .. } ) t
|
||||
bezier' ( Bezier {..} ) t
|
||||
= ( 3 *^ )
|
||||
$ lerp @v t
|
||||
( lerp @v t ( p0 --> p1 ) ( p1 --> p2 ) )
|
||||
|
@ -93,7 +93,7 @@ bezier' ( Bezier { .. } ) t
|
|||
|
||||
-- | Subdivide a cubic Bézier curve into two parts.
|
||||
subdivide :: forall v r p. ( Torsor v p, Module r v ) => Bezier p -> r -> ( Bezier p, Bezier p )
|
||||
subdivide ( Bezier { .. } ) t = ( Bezier p0 q1 q2 pt, Bezier pt r1 r2 p3 )
|
||||
subdivide ( Bezier {..} ) t = ( Bezier p0 q1 q2 pt, Bezier pt r1 r2 p3 )
|
||||
where
|
||||
pt, s, q1, q2, r1, r2 :: p
|
||||
q1 = lerp @v t p0 p1
|
||||
|
@ -105,7 +105,7 @@ subdivide ( Bezier { .. } ) t = ( Bezier p0 q1 q2 pt, Bezier pt r1 r2 p3 )
|
|||
|
||||
-- | Polynomial coefficients of the derivative of the distance to a cubic Bézier curve.
|
||||
ddist :: forall v r p. ( Torsor v p, Inner r v, RealFloat r ) => Bezier p -> p -> [ r ]
|
||||
ddist ( Bezier { .. } ) c = [ a0, a1, a2, a3, a4, a5 ]
|
||||
ddist ( Bezier {..} ) c = [ a0, a1, a2, a3, a4, a5 ]
|
||||
where
|
||||
v, v', v'', v''' :: v
|
||||
v = c --> p0
|
||||
|
@ -123,7 +123,7 @@ ddist ( Bezier { .. } ) c = [ a0, a1, a2, a3, a4, a5 ]
|
|||
|
||||
-- | Finds the closest point to a given point on a cubic Bézier curve.
|
||||
closestPoint :: forall v r p. ( Torsor v p, Inner r v, RealFloat r ) => Bezier p -> p -> ArgMin r ( r, p )
|
||||
closestPoint pts@( Bezier { .. } ) c = pickClosest ( 0 :| 1 : roots ) -- todo: also include the self-intersection point if one exists
|
||||
closestPoint pts@( Bezier {..} ) c = pickClosest ( 0 :| 1 : roots ) -- todo: also include the self-intersection point if one exists
|
||||
where
|
||||
roots :: [ r ]
|
||||
roots = filter ( \ r -> r > 0 && r < 1 ) ( realRoots $ ddist @v pts c )
|
||||
|
|
|
@ -75,15 +75,15 @@ deriving via Ap Bezier p
|
|||
|
||||
-- | Quadratic Bézier curve.
|
||||
bezier :: forall v r p. ( Torsor v p, Module r v ) => Bezier p -> r -> p
|
||||
bezier ( Bezier { .. } ) t = lerp @v t ( lerp @v t p0 p1 ) ( lerp @v t p1 p2 )
|
||||
bezier ( Bezier {..} ) t = lerp @v t ( lerp @v t p0 p1 ) ( lerp @v t p1 p2 )
|
||||
|
||||
-- | Derivative of quadratic Bézier curve.
|
||||
bezier' :: forall v r p. ( Torsor v p, Module r v ) => Bezier p -> r -> v
|
||||
bezier' ( Bezier { .. } ) t = 2 *^ lerp @v t ( p0 --> p1 ) ( p1 --> p2 )
|
||||
bezier' ( Bezier {..} ) t = 2 *^ lerp @v t ( p0 --> p1 ) ( p1 --> p2 )
|
||||
|
||||
-- | Subdivide a quadratic Bézier curve into two parts.
|
||||
subdivide :: forall v r p. ( Torsor v p, Module r v ) => Bezier p -> r -> ( Bezier p, Bezier p )
|
||||
subdivide ( Bezier { .. } ) t = ( Bezier p0 q1 pt, Bezier pt r1 p2 )
|
||||
subdivide ( Bezier {..} ) t = ( Bezier p0 q1 pt, Bezier pt r1 p2 )
|
||||
where
|
||||
pt, q1, r1 :: p
|
||||
q1 = lerp @v t p0 p1
|
||||
|
@ -92,7 +92,7 @@ subdivide ( Bezier { .. } ) t = ( Bezier p0 q1 pt, Bezier pt r1 p2 )
|
|||
|
||||
-- | Polynomial coefficients of the derivative of the distance to a quadratic Bézier curve.
|
||||
ddist :: forall v r p. ( Torsor v p, Inner r v, RealFloat r ) => Bezier p -> p -> [ r ]
|
||||
ddist ( Bezier { .. } ) c = [ a0, a1, a2, a3 ]
|
||||
ddist ( Bezier {..} ) c = [ a0, a1, a2, a3 ]
|
||||
where
|
||||
v, v', v'' :: v
|
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v = c --> p0
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@ -107,7 +107,7 @@ ddist ( Bezier { .. } ) c = [ a0, a1, a2, a3 ]
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-- | Finds the closest point to a given point on a quadratic Bézier curve.
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closestPoint :: forall v r p. ( Torsor v p, Inner r v, RealFloat r ) => Bezier p -> p -> ArgMin r ( r, p )
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closestPoint pts@( Bezier { .. } ) c = pickClosest ( 0 :| 1 : roots )
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closestPoint pts@( Bezier {..} ) c = pickClosest ( 0 :| 1 : roots )
|
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where
|
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roots :: [ r ]
|
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roots = filter ( \ r -> r > 0 && r < 1 ) ( realRoots $ ddist @v pts c )
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|
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@ -227,7 +227,7 @@ stroke allPts@( spt0 :<| spt1 :<| spts )
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tgt2 :: Vector2D Double
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tgt2 = p1 --> p2
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bez :: Quadratic.Bezier ( Point2D Double )
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bez = Quadratic.Bezier { .. }
|
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bez = Quadratic.Bezier {..}
|
||||
brush :: Double -> Seq ( StrokePoint () )
|
||||
brush t = quadraticBezierBrush t
|
||||
( Quadratic.Bezier ( brushShape @x sp0 ) ( brushShape @x sp1 ) ( brushShape @x sp2 ) )
|
||||
|
@ -261,7 +261,7 @@ stroke allPts@( spt0 :<| spt1 :<| spts )
|
|||
tgt3 :: Vector2D Double
|
||||
tgt3 = p2 --> p3
|
||||
bez :: Cubic.Bezier ( Point2D Double )
|
||||
bez = Cubic.Bezier { .. }
|
||||
bez = Cubic.Bezier {..}
|
||||
brush :: Double -> Seq ( StrokePoint () )
|
||||
brush t = cubicBezierBrush t
|
||||
( Cubic.Bezier ( brushShape @x sp0 ) ( brushShape @x sp1 ) ( brushShape @x sp2 ) ( brushShape @x sp3 ) )
|
||||
|
@ -313,11 +313,11 @@ quadraticBezierBrush t ( Quadratic.Bezier p0s p1s p2s ) = Seq.zipWith3 f p0s p1s
|
|||
f ( PathPoint { coords = p0 } )
|
||||
( PathPoint { coords = p1 } )
|
||||
( PathPoint { coords = p2 } )
|
||||
= PP $ Quadratic.bezier @( Vector2D Double ) ( Quadratic.Bezier { .. } ) t
|
||||
= PP $ Quadratic.bezier @( Vector2D Double ) ( Quadratic.Bezier {..} ) t
|
||||
f ( ControlPoint { coords = p0 } )
|
||||
( ControlPoint { coords = p1 } )
|
||||
( ControlPoint { coords = p2 } )
|
||||
= CP $ Quadratic.bezier @( Vector2D Double ) ( Quadratic.Bezier { .. } ) t
|
||||
= CP $ Quadratic.bezier @( Vector2D Double ) ( Quadratic.Bezier {..} ) t
|
||||
f p1 p2 p3 = error $ "stroke: incompatible brushes " <> show [ p1, p2, p3 ]
|
||||
|
||||
cubicBezierBrush :: forall d. Show d => Double -> Cubic.Bezier ( Seq ( StrokePoint d ) ) -> Seq ( StrokePoint () )
|
||||
|
@ -328,12 +328,12 @@ cubicBezierBrush t ( Cubic.Bezier p0s p1s p2s p3s ) = Seq.zipWith4 f p0s p1s p2s
|
|||
( PathPoint { coords = p1 } )
|
||||
( PathPoint { coords = p2 } )
|
||||
( PathPoint { coords = p3 } )
|
||||
= PP $ Cubic.bezier @( Vector2D Double ) ( Cubic.Bezier { .. } ) t
|
||||
= PP $ Cubic.bezier @( Vector2D Double ) ( Cubic.Bezier {..} ) t
|
||||
f ( ControlPoint { coords = p0 } )
|
||||
( ControlPoint { coords = p1 } )
|
||||
( ControlPoint { coords = p2 } )
|
||||
( ControlPoint { coords = p3 } )
|
||||
= CP $ Cubic.bezier @( Vector2D Double ) ( Cubic.Bezier { .. } ) t
|
||||
= CP $ Cubic.bezier @( Vector2D Double ) ( Cubic.Bezier {..} ) t
|
||||
f p1 p2 p3 p4 = error $ "stroke: incompatible brushes " <> show [ p1, p2, p3, p4 ]
|
||||
|
||||
fitCurve
|
||||
|
@ -407,7 +407,7 @@ splitFirstPiece t ( sp0 :<| sp1 :<| sp2 :<| _ )
|
|||
, let
|
||||
q1, p, r1 :: Point2D Double
|
||||
( Quadratic.Bezier _ q1 p, Quadratic.Bezier _ r1 _ )
|
||||
= Quadratic.subdivide @( Vector2D Double ) ( Quadratic.Bezier { .. } ) t
|
||||
= Quadratic.subdivide @( Vector2D Double ) ( Quadratic.Bezier {..} ) t
|
||||
= ( PP p0 :<| CP q1 :<| PP p :<| Empty
|
||||
, PP p :<| CP r1 :<| PP p2 :<| Empty
|
||||
)
|
||||
|
@ -420,7 +420,7 @@ splitFirstPiece t ( sp0 :<| sp1 :<| sp2 :<| sp3 :<| _ )
|
|||
, let
|
||||
q1, q2, p, r1, r2 :: Point2D Double
|
||||
( Cubic.Bezier _ q1 q2 p, Cubic.Bezier _ r1 r2 _ )
|
||||
= Cubic.subdivide @( Vector2D Double ) ( Cubic.Bezier { .. } ) t
|
||||
= Cubic.subdivide @( Vector2D Double ) ( Cubic.Bezier {..} ) t
|
||||
= ( PP p0 :<| CP q1 :<| CP q2 :<| PP p :<| Empty
|
||||
, PP p :<| CP r1 :<| CP r2 :<| PP p3 :<| Empty
|
||||
)
|
||||
|
@ -463,7 +463,7 @@ withTangent tgt ( spt0 :<| spt1 :<| spts ) =
|
|||
tgt1 :: Vector2D Double
|
||||
tgt1 = p1 --> p2
|
||||
in case between tgt tgt0 tgt1 of
|
||||
Just t -> Offset i ( Just t ) ( MkVector2D $ Quadratic.bezier @( Vector2D Double ) ( Quadratic.Bezier { .. } ) t )
|
||||
Just t -> Offset i ( Just t ) ( MkVector2D $ Quadratic.bezier @( Vector2D Double ) ( Quadratic.Bezier {..} ) t )
|
||||
Nothing -> continue ( i + 2 ) tgt1 sp2 ps
|
||||
-- Cubic Bézier curve.
|
||||
go i tgt0
|
||||
|
@ -475,7 +475,7 @@ withTangent tgt ( spt0 :<| spt1 :<| spts ) =
|
|||
tgt1 = p1 --> p2
|
||||
tgt2 = p2 --> p3
|
||||
bez :: Cubic.Bezier ( Point2D Double )
|
||||
bez = Cubic.Bezier { .. }
|
||||
bez = Cubic.Bezier {..}
|
||||
c01, c12, c23 :: Double
|
||||
c01 = tgt `cross` tgt0
|
||||
c12 = tgt `cross` tgt1
|
||||
|
|
|
@ -10,7 +10,7 @@ module Math.Module
|
|||
( Module(..), lerp
|
||||
, Inner(..)
|
||||
, squaredNorm, quadrance, distance
|
||||
, proj, projC, closestPointToLine
|
||||
, proj, projC, closestPointToSegment
|
||||
)
|
||||
where
|
||||
|
||||
|
@ -79,11 +79,11 @@ proj x y = projC x y *^ y
|
|||
projC :: forall m r. ( Inner r m, Fractional r ) => m -> m -> r
|
||||
projC x y = x ^.^ y / squaredNorm y
|
||||
|
||||
closestPointToLine
|
||||
closestPointToSegment
|
||||
:: forall v r p
|
||||
. ( Inner r v, Torsor v p, Fractional r, Ord r )
|
||||
=> p -> p -> p -> p
|
||||
closestPointToLine c p0 p1
|
||||
closestPointToSegment c p0 p1
|
||||
| t <= 0
|
||||
= p0
|
||||
| t >= 1
|
||||
|
|
Loading…
Reference in a new issue