mirror of
https://gitlab.com/sheaf/metabrush.git
synced 2024-11-23 15:34:06 +00:00
brush list view: first steps
This commit is contained in:
sheaf
parent
b5b29f124a
commit
c1d6dd4151
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@ -241,6 +241,7 @@ executable MetaBrush
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, MetaBrush.Render.Document
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, MetaBrush.Render.Rulers
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, MetaBrush.Time
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, MetaBrush.UI.BrushList
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, MetaBrush.UI.Coordinates
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, MetaBrush.UI.FileBar
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, MetaBrush.UI.InfoBar
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@ -522,7 +522,7 @@ indent {
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color: black;
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}
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.layer-item {
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.layer-item, .brush-item {
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color: @plain;
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background-color: @active;
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border: 0px solid @bg;
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@ -536,7 +536,7 @@ indent {
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padding-left: 3px;
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}
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:selected .layer-item {
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:selected .layer-item, :selected .brush-item {
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color: black;
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background-color: @contrast;
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border: 0px solid @contrast;
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@ -550,22 +550,33 @@ indent {
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.drag-over.layer-item {
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}
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/* Style when dragging over the top part of an item */
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.drag-top.layer-item {
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/* Style when dragging layer item over the top part of an item */
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.dragging-item .drag-top.layer-item {
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border-top: 2px solid @highlight;
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margin-top: -2px;
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box-shadow:
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inset 0 8px 6px -6px @highlight;
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}
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/* Style when dragging over the bottom part of an item */
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.drag-bot.layer-item {
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/* Style when dragging layer item over the bottom part of an item */
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.dragging-item .drag-bot.layer-item {
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border-bottom: 2px solid @highlight;
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margin-bottom: -2px;
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box-shadow:
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inset 0 -8px 6px -6px @highlight;
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}
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/* Style when dragging brush over an item */
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.dragging-brush .drag-top.layer-item, .dragging-brush .drag-bot.layer-item {
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border-top: 2px solid @brushStroke;
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border-bottom: 2px solid @brushStroke;
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border-left: 0px;
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border-right: 0px;
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margin-top: -2px;
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margin-bottom: -2px;
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background-color: @brushStroke;
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}
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/* Style for item being dragged */
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.dragged.layer-item {
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background-color: @bg;
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@ -105,6 +105,8 @@ import MetaBrush.Render.Document
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import MetaBrush.Render.Rulers
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( renderRuler )
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import MetaBrush.Stroke
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import MetaBrush.UI.BrushList
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( newBrushView )
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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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@ -113,7 +115,7 @@ import MetaBrush.UI.Menu
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( createMenuBar, createMenuActions )
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import MetaBrush.UI.Panels
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import MetaBrush.UI.StrokeTreeView
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( newLayerView )
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( DragSourceData(..), newLayerView )
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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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@ -474,6 +476,14 @@ runApplication application = do
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( layersScrolledWindow panelsBar )
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( Just strokesListView )
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---------------------------------------------------------
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-- Brushes view
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brushesListView <- newBrushView window DragBrush
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GTK.scrolledWindowSetChild
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( brushesScrolledWindow panelsBar )
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( Just brushesListView )
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GTK.boxAppend mainView fileBarBox
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GTK.boxAppend mainView viewportGrid
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GTK.boxAppend mainView infoBarArea
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190
src/app/MetaBrush/UI/BrushList.hs
Normal file
190
src/app/MetaBrush/UI/BrushList.hs
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@ -0,0 +1,190 @@
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{-# LANGUAGE ImplicitParams #-}
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{-# LANGUAGE OverloadedLabels #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE RecursiveDo #-}
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module MetaBrush.UI.BrushList
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( newBrushListModel
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, newBrushView
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, getSelectedBrush
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)
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where
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-- base
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import Control.Monad
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( void )
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import Data.IORef
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( newIORef, atomicWriteIORef, readIORef )
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import Data.Maybe
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( fromMaybe )
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import Data.Typeable
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( Typeable )
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-- gi-gdk
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import qualified GI.Gdk as GDK
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-- gi-gio
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import qualified GI.Gio as GIO
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-- gi-gtk
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import qualified GI.Gtk as GTK
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-- haskell-gi-base
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import qualified Data.GI.Base as GI
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import qualified Data.GI.Base.GValue as GI
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-- text
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import Data.Text
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( Text )
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import qualified Data.Text as Text
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( toLower )
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-- unordered-containers
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import qualified Data.HashMap.Strict as HashMap
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-- MetaBrush
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import qualified MetaBrush.Asset.Brushes as Brushes
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( brushes )
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--------------------------------------------------------------------------------
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-- GTK StringList --
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--------------------
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-- | Create a new 'GTK.StringList' with 'GTK.SingleSelection' to hold
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-- the given brush names.
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newBrushListModel :: [ Text ] -> IO GTK.SingleSelection
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newBrushListModel brushNames = do
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stringList <- GTK.stringListNew ( Just brushNames )
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selectionModel <- GI.withManagedPtr stringList $ \ slPtr ->
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GI.withNewObject slPtr $ \ slCopy ->
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GTK.singleSelectionNew ( Just slCopy )
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return selectionModel
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------------------
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-- GTK ListView --
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------------------
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-- | Create a new 'GTK.ListView' that displays brush names.
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newBrushView :: Typeable dnd_data
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=> GTK.ApplicationWindow
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-> ( Maybe Text -> dnd_data )
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-- ^ drag and drop data for the brush
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-> IO GTK.ListView
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newBrushView rootWindow mkDND_data = mdo
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brushListModel <- newBrushListModel ( "No brush" : HashMap.keys Brushes.brushes )
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brushesListFactory <- GTK.signalListItemFactoryNew
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dragPosRef <- newIORef ( 0, 0 )
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-- Connect to "setup" signal to create generic widgets for viewing brush names.
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_ <- GTK.onSignalListItemFactorySetup brushesListFactory $ \ listItem0 -> do
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listItem <- GTK.unsafeCastTo GTK.ListItem listItem0
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GTK.listItemSetFocusable listItem False
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brushBox <- GTK.boxNew GTK.OrientationHorizontal 10
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GTK.listItemSetChild listItem ( Just brushBox )
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GTK.widgetAddCssClass brushBox "brush-item"
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brushLabel <- GTK.labelNew ( Nothing @Text )
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GTK.boxAppend brushBox brushLabel
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----------------
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-- DragSource --
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----------------
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-- Connect signals for starting a drag from this widget.
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dragSource <- GTK.dragSourceNew
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GTK.dragSourceSetActions dragSource [ GDK.DragActionCopy ]
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void $ GTK.onDragSourcePrepare dragSource $ \ x y -> do
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atomicWriteIORef dragPosRef ( x, y )
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brushName <- getBrushName listItem
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val <- GDK.contentProviderNewForValue =<< GIO.toGValue ( GI.HValue $ mkDND_data brushName )
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GTK.widgetAddCssClass rootWindow "dragging-brush"
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return $ Just val
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void $ GTK.onDragSourceDragBegin dragSource $ \ _drag -> do
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( x, y ) <- readIORef dragPosRef
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paintable <- GTK.widgetPaintableNew ( Just brushBox )
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GTK.dragSourceSetIcon ?self ( Just paintable ) ( round x ) ( round y )
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GTK.widgetAddCssClass brushBox "dragged-brush"
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-- TODO: add "dragged" class for all descendants as well.
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void $ GTK.onDragSourceDragCancel dragSource $ \ _drag _reason -> do
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GTK.widgetRemoveCssClass rootWindow "dragging-brush"
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GTK.widgetRemoveCssClass brushBox "dragged-brush"
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return True
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-- ^^^^ Important. Setting this to 'False' stops GDK
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-- from properly clearing the drag cursor.
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void $ GTK.onDragSourceDragEnd dragSource $ \ _drag _deleteData -> do
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GTK.widgetRemoveCssClass rootWindow "dragging-brush"
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GTK.widgetRemoveCssClass brushBox "dragged-brush"
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GTK.widgetAddController brushBox dragSource
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-- Connect to "bind" signal to modify the generic widget to display the data for this list item.
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_ <- GTK.onSignalListItemFactoryBind brushesListFactory $ \ listItem0 -> do
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listItem <- GTK.unsafeCastTo GTK.ListItem listItem0
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brushName <- getBrushName listItem
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mbBrushBox <- GTK.listItemGetChild listItem
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brushBox <-
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case mbBrushBox of
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Nothing -> error "brushList onBind: list item has no child"
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Just box0 -> GTK.unsafeCastTo GTK.Box box0
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mbBrushLabel <- GTK.widgetGetFirstChild brushBox
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brushLabel <-
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case mbBrushLabel of
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Nothing -> error "brushList onBind: brush box has no child"
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Just lbl0 -> GTK.unsafeCastTo GTK.Label lbl0
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GTK.labelSetLabel brushLabel ( fromMaybe "no brush" brushName )
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listView <- GTK.listViewNew ( Nothing @GTK.SingleSelection ) ( Just brushesListFactory )
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GTK.listViewSetModel listView ( Just brushListModel )
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return listView
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getBrushName :: GTK.ListItem -> IO ( Maybe Text )
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getBrushName listItem = do
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mbStrObj <- GTK.listItemGetItem listItem
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case mbStrObj of
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Nothing -> error "getBrushName: ListItem has no item"
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Just strObj0 -> do
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strObj <- GTK.unsafeCastTo GTK.StringObject strObj0
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str <- GTK.stringObjectGetString strObj
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return $
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if str == "" || Text.toLower str == "no brush"
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then Nothing
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else Just str
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-- | Get the name of the selected brush in the 'ListView', if any.
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getSelectedBrush :: GTK.ListView -> IO ( Maybe Text )
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getSelectedBrush layersView = do
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mbSelectionModel <- GTK.listViewGetModel layersView
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case mbSelectionModel of
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Nothing -> error "getSelectedBrush: no SelectionModel"
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Just selModel0 -> do
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selModel <- GTK.unsafeCastTo GTK.SingleSelection selModel0
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mbRow <- GTK.singleSelectionGetSelectedItem selModel
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case mbRow of
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Nothing -> return Nothing
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Just row0 -> do
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row <- GTK.unsafeCastTo GTK.TreeListRow row0
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mbItem <- GTK.treeListRowGetItem row
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case mbItem of
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Nothing -> error "getSelectedBrush: row has no item"
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Just item0 -> do
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strObj <- GTK.unsafeCastTo GTK.StringObject item0
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str <- GTK.stringObjectGetString strObj
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return $
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if str == "" || Text.toLower str == "no brush"
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then Nothing
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else Just str
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@ -25,9 +25,9 @@ import MetaBrush.GTK.Util
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data PanelsBar
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= PanelsBar
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{ layersScrolledWindow
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{ layersScrolledWindow, brushesScrolledWindow
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:: !GTK.ScrolledWindow
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, brushesPanelBox, transformPanelBox, historyPanelBox
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, transformPanelBox, historyPanelBox
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:: !GTK.Box
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}
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@ -45,16 +45,17 @@ createPanelBar panelBox = do
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panels1 <- GTK.notebookNew
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panels2 <- GTK.notebookNew
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GTK.notebookSetGroupName panels1 ( Just "Panel" )
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GTK.notebookSetGroupName panels2 ( Just "Panel" )
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GTK.notebookSetGroupName panels1 ( Just "Top panel" )
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GTK.notebookSetGroupName panels2 ( Just "Bottom panel" )
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GTK.panedSetStartChild pane1 ( Just panels1 )
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GTK.panedSetEndChild pane1 ( Just panels2 )
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layersScrolledWindow <- GTK.scrolledWindowNew
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GTK.scrolledWindowSetPolicy layersScrolledWindow GTK.PolicyTypeNever GTK.PolicyTypeAutomatic
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brushesScrolledWindow <- GTK.scrolledWindowNew
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GTK.scrolledWindowSetPolicy brushesScrolledWindow GTK.PolicyTypeNever GTK.PolicyTypeAutomatic
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brushesPanelBox <- GTK.boxNew GTK.OrientationVertical 0
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transformPanelBox <- GTK.boxNew GTK.OrientationVertical 0
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historyPanelBox <- GTK.boxNew GTK.OrientationVertical 0
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@ -66,35 +67,33 @@ createPanelBar panelBox = do
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for_ [ strokesTab, brushesTab, transformTab, historyTab ] \ tab -> do
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widgetAddClasses tab [ "plain", "text", "panelTab" ]
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widgetAddClass layersScrolledWindow "panel"
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for_ [ brushesPanelBox, transformPanelBox, historyPanelBox ] \ panel -> do
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for_ [ layersScrolledWindow, brushesScrolledWindow ] \ w -> widgetAddClass w "panel"
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for_ [ transformPanelBox, historyPanelBox ] \ panel -> do
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widgetAddClass panel "panel"
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void $ GTK.notebookAppendPage panels1 layersScrolledWindow ( Just strokesTab )
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void $ GTK.notebookAppendPage panels1 brushesPanelBox ( Just brushesTab )
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void $ GTK.notebookAppendPage panels1 brushesScrolledWindow ( Just brushesTab )
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void $ GTK.notebookAppendPage panels1 historyPanelBox ( Just historyTab )
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void $ GTK.notebookAppendPage panels2 layersScrolledWindow ( Just strokesTab )
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void $ GTK.notebookAppendPage panels2 transformPanelBox ( Just transformTab )
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void $ GTK.notebookAppendPage panels2 historyPanelBox ( Just historyTab )
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GTK.notebookSetTabReorderable panels1 layersScrolledWindow True
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GTK.notebookSetTabDetachable panels1 layersScrolledWindow True
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GTK.notebookSetTabReorderable panels1 brushesPanelBox True
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GTK.notebookSetTabDetachable panels1 brushesPanelBox True
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GTK.notebookSetTabReorderable panels1 brushesScrolledWindow True
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GTK.notebookSetTabDetachable panels1 brushesScrolledWindow True
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GTK.notebookSetTabReorderable panels1 historyPanelBox True
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GTK.notebookSetTabDetachable panels1 historyPanelBox True
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GTK.notebookSetTabReorderable panels2 layersScrolledWindow True
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GTK.notebookSetTabDetachable panels2 layersScrolledWindow True
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GTK.notebookSetTabReorderable panels2 transformPanelBox True
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GTK.notebookSetTabDetachable panels2 transformPanelBox True
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GTK.notebookSetTabReorderable panels2 historyPanelBox True
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GTK.notebookSetTabDetachable panels2 historyPanelBox True
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brushesContent <- GTK.labelNew ( Just "Brushes tab content..." )
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transformContent <- GTK.labelNew ( Just "Transform tab content..." )
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historyContent <- GTK.labelNew ( Just "History tab content..." )
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GTK.boxAppend brushesPanelBox brushesContent
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GTK.boxAppend transformPanelBox transformContent
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GTK.boxAppend historyPanelBox historyContent
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return $
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PanelsBar { layersScrolledWindow
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, brushesPanelBox, transformPanelBox, historyPanelBox
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PanelsBar { layersScrolledWindow, brushesScrolledWindow
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, transformPanelBox, historyPanelBox
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}
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@ -67,12 +67,14 @@ import Data.Text
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-- MetaBrush
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import MetaBrush.Application.Context
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import MetaBrush.Application.UpdateDocument
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import MetaBrush.Asset.Brushes
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( lookupBrush )
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import MetaBrush.Brush
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import MetaBrush.Document
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import MetaBrush.Document.Diff
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import MetaBrush.Document.History
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import MetaBrush.Layer
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import MetaBrush.Stroke hiding ( Layer(..) )
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import MetaBrush.UI.Panels ( PanelsBar(..) )
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import MetaBrush.Unique
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import MetaBrush.Util
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( (!) )
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@ -102,6 +104,17 @@ instance GI.DerivedGObject LayerItem where
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objectInstanceInit _ _ = return Nothing
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objectInterfaces = [ ]
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--------------------------------------------------------------------------------
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-- Drag and drop data --
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------------------------
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-- | Data passed in a drag-and-drop operation associated with the drag source.
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data DragSourceData
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= DragBrush { draggedBrushName :: !( Maybe Text ) }
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| DragLayerItem { draggedLayerItem :: !ChildLayer }
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deriving stock ( Show, Eq )
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--------------------------------------------------------------------------------
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-- GTK TreeListModel --
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-----------------------
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@ -386,7 +399,7 @@ getLayerViewWidget expander = do
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-- | Create a new 'GTK.ListView' that displays 'LayerItem's.
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newLayerView :: UIElements -> Variables -> IO GTK.ListView
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newLayerView uiElts@( UIElements { panelsBar = PanelsBar { layersScrolledWindow } } ) vars = mdo
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newLayerView uiElts@( UIElements { window } ) vars = mdo
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layersListFactory <- GTK.signalListItemFactoryNew
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@ -480,13 +493,14 @@ newLayerView uiElts@( UIElements { panelsBar = PanelsBar { layersScrolledWindow
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GTK.singleSelectionSetSelected selModel rowPos
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let dnd_sourceItem =
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DragLayerItem $
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WithinParent
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{ parent = fmap snd srcPar
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, item = srcUniq
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}
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val <- GDK.contentProviderNewForValue =<< GIO.toGValue ( GI.HValue dnd_sourceItem )
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GTK.widgetAddCssClass layersScrolledWindow "dragging-item"
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GTK.widgetAddCssClass window "dragging-item"
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return $ Just val
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void $ GTK.onDragSourceDragBegin dragSource $ \ _drag -> do
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@ -501,13 +515,13 @@ newLayerView uiElts@( UIElements { panelsBar = PanelsBar { layersScrolledWindow
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GTK.widgetAddCssClass expander "dragged"
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-- TODO: add "dragged" class for all descendants as well.
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void $ GTK.onDragSourceDragCancel dragSource $ \ _drag _reason -> do
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GTK.widgetRemoveCssClass layersScrolledWindow "dragging-item"
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GTK.widgetRemoveCssClass window "dragging-item"
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GTK.widgetRemoveCssClass expander "dragged"
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return True
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-- ^^^^ Important. Setting this to 'False' stops GDK
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-- from properly clearing the drag cursor.
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void $ GTK.onDragSourceDragEnd dragSource $ \ _drag _deleteData -> do
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GTK.widgetRemoveCssClass layersScrolledWindow "dragging-item"
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GTK.widgetRemoveCssClass window "dragging-item"
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GTK.widgetRemoveCssClass expander "dragged"
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----------------
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@ -532,22 +546,37 @@ newLayerView uiElts@( UIElements { panelsBar = PanelsBar { layersScrolledWindow
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-- LayerID {} -> return True
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void $ GTK.onDropTargetDrop dropTarget $ \ val _x y -> do
|
||||
dropTargetCleanup
|
||||
dropTgtUniq <- layerUnique <$> getLayerData listItem
|
||||
dropTgt <- getLayerData listItem
|
||||
|
||||
GI.HValue dragSrc@( WithinParent { item = dragSrcUniq }) <-
|
||||
GIO.fromGValue @( GI.HValue ChildLayer ) val
|
||||
GI.HValue dnd_data <- GIO.fromGValue @( GI.HValue DragSourceData ) val
|
||||
|
||||
mbTreeListRow <- traverse ( GTK.unsafeCastTo GTK.TreeListRow ) =<< GTK.listItemGetItem listItem
|
||||
treeListRow <- case mbTreeListRow of
|
||||
Nothing -> error "newLayerView ListItem onSetup: no TreeListRow"
|
||||
Just r -> return r
|
||||
dstPar <- getParent treeListRow
|
||||
|
||||
case dnd_data of
|
||||
DragBrush brushName -> do
|
||||
case dropTgt of
|
||||
GroupLayer {} ->
|
||||
return False
|
||||
StrokeLayer tgtStrokeUnique -> do
|
||||
updateLayerHierarchy vars $
|
||||
DoLayerChange $
|
||||
SetBrush
|
||||
{ setBrushStroke = WithinParent ( fmap snd dstPar ) tgtStrokeUnique
|
||||
, setBrushName = brushName
|
||||
}
|
||||
return True
|
||||
|
||||
DragLayerItem dragSrc@( WithinParent { item = dragSrcUniq }) -> do
|
||||
let dropTgtUniq = layerUnique dropTgt
|
||||
dstFlatIndex <- GTK.treeListRowGetPosition treeListRow
|
||||
h <- GTK.widgetGetHeight expander
|
||||
let droppedAbove = y < 0.5 * fromIntegral h
|
||||
expanded <- GTK.treeListRowGetExpanded treeListRow
|
||||
|
||||
dstPar <- getParent treeListRow
|
||||
isDescendant <- isDescendantOf dragSrcUniq listItem
|
||||
|
||||
let mbDropIntoGroup
|
||||
|
|
@ -880,6 +909,10 @@ data LayerChange
|
|||
| Delete
|
||||
{ deleteItem :: !ChildLayer
|
||||
}
|
||||
| SetBrush
|
||||
{ setBrushStroke :: !ChildLayer
|
||||
, setBrushName :: !( Maybe Text )
|
||||
}
|
||||
|
||||
-- | Destination of a move operation.
|
||||
data MoveDst
|
||||
|
|
@ -1092,6 +1125,31 @@ applyChangeToLayerHierarchy change hierarchy =
|
|||
, delIsGroup = isJust mbHadChildren
|
||||
}
|
||||
)
|
||||
SetBrush { setBrushStroke = WithinParent parUniq strokeUnique, setBrushName } ->
|
||||
let
|
||||
oldStroke, newStroke :: Stroke
|
||||
oldStroke = content hierarchy ! strokeUnique
|
||||
newStroke = case setBrushName of
|
||||
Just brushNm
|
||||
| Just ( SomeBrush brush ) <- lookupBrush brushNm
|
||||
-> setStrokeBrush ( Just brush ) oldStroke
|
||||
_ -> setStrokeBrush Nothing oldStroke
|
||||
|
||||
strokeIx :: Word32
|
||||
strokeIx =
|
||||
let oldPar_cs = lookupChildren parUniq hierarchy
|
||||
in fromIntegral $ fromJust $ elemIndex strokeUnique oldPar_cs
|
||||
|
||||
hierarchy' = hierarchy { content = Map.insert strokeUnique newStroke ( content hierarchy ) }
|
||||
in
|
||||
( hierarchy'
|
||||
, Map.empty
|
||||
, Just $
|
||||
StrokeSetBrush
|
||||
{ changedBrushStroke = WithinParent parUniq strokeIx
|
||||
, newBrushName = setBrushName
|
||||
}
|
||||
)
|
||||
|
||||
-- | Apply a change to the 'ListModel' underlying the UI
|
||||
-- representation of the layer hierarchy.
|
||||
|
|
@ -1148,6 +1206,9 @@ applyDiffToListModel parStoreTVar docUnique ( doOrUndo, diff ) = do
|
|||
DeletePoints { deletedStrokes } ->
|
||||
unless ( null deletedStrokes ) $
|
||||
putStrLn "TODO: delete strokes"
|
||||
StrokeSetBrush { changedBrushStroke = WithinParent changedPar changedIx } -> do
|
||||
let changedStrokeStore = parStoreFromUniq ! changedPar
|
||||
GIO.listModelItemsChanged changedStrokeStore changedIx 0 0
|
||||
|
||||
-- | Update the 'StrokeHierarchy' after a drag-and-drop operation,
|
||||
-- moving one layer or group around.
|
||||
|
|
|
|||
|
|
@ -13,6 +13,10 @@ import Data.Set
|
|||
import Control.DeepSeq
|
||||
( NFData(..) )
|
||||
|
||||
-- text
|
||||
import Data.Text
|
||||
( Text )
|
||||
|
||||
-- brush-strokes
|
||||
import Math.Bezier.Spline
|
||||
import Math.Linear
|
||||
|
|
@ -73,6 +77,10 @@ data HierarchyDiff
|
|||
, srcPos :: !ChildLayerPosition
|
||||
, dstPos :: !ChildLayerPosition
|
||||
}
|
||||
| StrokeSetBrush
|
||||
{ changedBrushStroke :: !ChildLayerPosition
|
||||
, newBrushName :: !( Maybe Text )
|
||||
}
|
||||
deriving stock ( Show, Generic )
|
||||
deriving anyclass NFData
|
||||
|
||||
|
|
|
|||
|
|
@ -15,8 +15,6 @@ import Control.Monad.ST
|
|||
( RealWorld, ST, runST )
|
||||
import Data.Foldable
|
||||
( for_ )
|
||||
import Data.Functor.Identity
|
||||
( Identity(..) )
|
||||
import GHC.Generics
|
||||
( Generic )
|
||||
import GHC.TypeLits
|
||||
|
|
@ -59,8 +57,6 @@ import Math.Linear
|
|||
( ℝ(..) )
|
||||
|
||||
-- MetaBrush
|
||||
import MetaBrush.Assert
|
||||
( assert )
|
||||
import MetaBrush.Brush
|
||||
( NamedBrush(..) )
|
||||
import MetaBrush.Document
|
||||
|
|
@ -72,9 +68,6 @@ import MetaBrush.Stroke
|
|||
import MetaBrush.Unique
|
||||
( Unique, UniqueSupply, freshUnique )
|
||||
|
||||
import Unsafe.Coerce
|
||||
( unsafeCoerce )
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
-- | A draw anchor, to continue drawing from one end of an existing stroke.
|
||||
|
|
@ -233,7 +226,7 @@ addToAnchor anchor newSpline doc@( Document { documentMetadata, documentContent
|
|||
updateStroke strokeUnique stroke@( Stroke { strokeSpline = ( oldSpline :: StrokeSpline clo brushParams ) })
|
||||
| strokeUnique == anchorStroke anchor
|
||||
, SOpen <- ssplineType @clo
|
||||
, let prevSpline0 = co @RealWorld @s oldSpline
|
||||
, let prevSpline0 = coCache @RealWorld @s oldSpline
|
||||
= do
|
||||
finalSpline <-
|
||||
if anchorIsAtEnd anchor
|
||||
|
|
@ -270,14 +263,10 @@ addToAnchor anchor newSpline doc@( Document { documentMetadata, documentContent
|
|||
return ( 0, prevSpline0 )
|
||||
newSpline' <- newCaches ( \ i -> i0 - fromIntegral i - 1 ) ( brushParams ( splineStart prevSpline ) ) ( reverseSpline newSpline )
|
||||
return $ newSpline' <> prevSpline
|
||||
return $ UpdateStrokeTo ( stroke { strokeSpline = co @s @RealWorld finalSpline } )
|
||||
return $ UpdateStrokeTo ( stroke { strokeSpline = coCache @s @RealWorld finalSpline } )
|
||||
| otherwise
|
||||
= return PreserveStroke
|
||||
|
||||
{-# NOINLINE co #-}
|
||||
co :: forall s t brushParams. Spline Open ( CurveData s ) ( PointData brushParams ) -> Spline Open ( CurveData t ) ( PointData brushParams )
|
||||
co = unsafeCoerce
|
||||
|
||||
newCaches :: ( Int -> Rational )
|
||||
-> brushParams
|
||||
-> Spline Open () ( PointData () )
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@ module MetaBrush.Stroke where
|
|||
import Control.Arrow
|
||||
( (***) )
|
||||
import Control.Monad.ST
|
||||
( RealWorld )
|
||||
( ST, RealWorld, runST )
|
||||
import Data.Coerce
|
||||
( coerce )
|
||||
import Data.Foldable
|
||||
|
|
@ -22,6 +22,8 @@ import GHC.Stack
|
|||
( HasCallStack )
|
||||
import GHC.TypeLits
|
||||
( Symbol )
|
||||
import Unsafe.Coerce
|
||||
( unsafeCoerce )
|
||||
|
||||
-- acts
|
||||
import Data.Act
|
||||
|
|
@ -65,10 +67,10 @@ import qualified Control.Monad.Trans.State.Strict as State
|
|||
-- brush-strokes
|
||||
import Math.Bezier.Spline
|
||||
( Spline(..), KnownSplineType
|
||||
, PointType(..)
|
||||
, PointType(..), bitraverseSpline, bitraverseCurve
|
||||
)
|
||||
import Math.Bezier.Stroke
|
||||
( CachedStroke )
|
||||
( CachedStroke, newCache )
|
||||
import Math.Module
|
||||
( Module
|
||||
( origin, (^+^), (^-^), (*^) )
|
||||
|
|
@ -181,6 +183,31 @@ overStrokeSpline
|
|||
-> Stroke -> Stroke
|
||||
overStrokeSpline f = coerce ( _strokeSpline @Identity ( coerce . f ) )
|
||||
|
||||
setStrokeBrush
|
||||
:: ( Maybe ( NamedBrush brushFields ) )
|
||||
-> Stroke -> Stroke
|
||||
setStrokeBrush brush
|
||||
( Stroke { strokeSpline = ( oldStrokeSpline :: StrokeSpline clo pointParams ) } ) =
|
||||
-- Invalidate all of the cached brush strokes.
|
||||
let spline' :: ST s ( Spline clo ( CurveData s ) ( PointData pointParams ) )
|
||||
spline' = bitraverseSpline
|
||||
( \ _ -> bitraverseCurve invalidateCurve ( const return ) )
|
||||
return
|
||||
oldStrokeSpline
|
||||
in
|
||||
Stroke
|
||||
{ strokeSpline = runST $ coCache <$> spline'
|
||||
, strokeBrush = brush }
|
||||
where
|
||||
invalidateCurve :: CurveData RealWorld -> ST s ( CurveData s )
|
||||
invalidateCurve crv = do
|
||||
noCache <- newCache
|
||||
return $ crv { cachedStroke = noCache }
|
||||
|
||||
{-# NOINLINE coCache #-}
|
||||
coCache :: forall s t clo ptData. Spline clo ( CurveData s ) ptData -> Spline clo ( CurveData t ) ptData
|
||||
coCache = unsafeCoerce
|
||||
|
||||
instance Act ( T ( ℝ 2 ) ) ( PointData params ) where
|
||||
v • ( dat@( PointData { pointCoords = p } ) ) =
|
||||
dat { pointCoords = v • p }
|
||||
|
|
|
|||
Loading…
Reference in a new issue