import ' dart:io ' ;
import ' dart:math ' ;
import ' package:file_picker/file_picker.dart ' ;
import ' package:flutter/material.dart ' ;
import ' package:flutter_hooks/flutter_hooks.dart ' ;
import ' package:hetu_script/hetu_script.dart ' ;
import ' package:hetu_script/values.dart ' ;
import ' package:logic_circuits_simulator/components/visual_component.dart ' ;
import ' package:logic_circuits_simulator/models.dart ' ;
import ' package:logic_circuits_simulator/pages_arguments/design_component.dart ' ;
import ' package:logic_circuits_simulator/state/component.dart ' ;
import ' package:logic_circuits_simulator/state/project.dart ' ;
import ' package:logic_circuits_simulator/state/projects.dart ' ;
import ' package:logic_circuits_simulator/utils/future_call_debounce.dart ' ;
import ' package:logic_circuits_simulator/utils/iterable_extension.dart ' ;
import ' package:logic_circuits_simulator/utils/provider_hook.dart ' ;
import ' package:logic_circuits_simulator/utils/stack_canvas_controller_hook.dart ' ;
import ' package:provider/provider.dart ' ;
import ' package:stack_canvas/stack_canvas.dart ' ;
import ' package:tuple/tuple.dart ' ;
import ' package:uuid/uuid.dart ' ;
Key canvasKey = GlobalKey ( ) ;
Key pickerKey = GlobalKey ( ) ;
class DesignComponentPage extends HookWidget {
final ComponentEntry component ;
const DesignComponentPage ( { required this . component , super . key } ) ;
DesignComponentPage . fromArguments ( DesignComponentPageArguments args , { super . key } )
: component = args . component ;
static const String routeName = ' /project/component/design ' ;
@ override
Widget build ( BuildContext context ) {
final componentState = useProvider < ComponentState > ( ) ;
final canvasController = useStackCanvasController (
offsetReference: Reference . Center ,
) ;
// Simulation vars
final isSimulating = useState ( false ) ;
final simulatePartially = useState ( false ) ;
useListenable ( componentState . partialVisualSimulation ! ) ;
// Scripting
final scriptingEnvironment = useState < Hetu ? > ( null ) ;
final loadScript = useMemoized ( ( ) = > ( String script ) {
scriptingEnvironment . value = Hetu ( ) ;
scriptingEnvironment . value ! . init (
externalFunctions: {
' unload ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
scriptingEnvironment . value = null ;
} ,
' alert ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
final content = positionalArgs [ 0 ] as String ;
final title = positionalArgs [ 1 ] as String ? ? ? ' Script Alert ' ;
return showDialog (
context: context ,
builder: ( context ) {
return AlertDialog (
title: Text ( title ) ,
content: Text ( content ) ,
actions: [
TextButton (
onPressed: ( ) {
Navigator . of ( context ) . pop ( ) ;
} ,
child: const Text ( ' OK ' ) ,
) ,
] ,
) ;
} ,
) ;
} ,
' snackBar ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
final content = positionalArgs [ 0 ] as String ;
final actionName = positionalArgs [ 1 ] as String ? ;
final actionFunction = positionalArgs [ 2 ] ;
ScaffoldMessenger . of ( context ) . showSnackBar ( SnackBar (
content: Text ( content ) ,
action: actionName = = null ? null : SnackBarAction (
label: actionName ,
onPressed: ( ) {
if ( actionFunction is String ) {
scriptingEnvironment . value ? . invoke ( actionFunction ) ;
}
else if ( actionFunction is HTFunction & & scriptingEnvironment . value ! = null ) {
actionFunction . call ( ) ;
}
} ,
) ,
) ) ;
} ,
' setTimeout ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
final millis = positionalArgs [ 0 ] as int ;
final function = positionalArgs [ 1 ] ;
final pos = namedArgs [ ' positionalArgs ' ] ? ? [ ] ;
final named = namedArgs [ ' namedArgs ' ] ? ? { } ;
Future . delayed ( Duration ( milliseconds: millis ) )
. then ( ( _ ) {
if ( function is String ) {
scriptingEnvironment . value ? . invoke ( function , positionalArgs: pos , namedArgs: Map . castFrom ( named ) ) ;
}
else if ( function is HTFunction & & scriptingEnvironment . value ! = null ) {
function . call ( positionalArgs: pos , namedArgs: Map . castFrom ( named ) ) ;
}
} ) ;
} ,
' getInputs ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
return componentState . currentComponent ! . inputs ;
} ,
' getOutputs ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
return componentState . currentComponent ! . outputs ;
} ,
' simGetInputValues ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
return Map . of ( componentState . partialVisualSimulation ! . inputsValues ) ;
} ,
' simGetOutputValues ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
return Map . of ( componentState . partialVisualSimulation ! . outputsValues ) ;
} ,
' simSetInput ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
final inputName = positionalArgs [ 0 ] as String ;
final value = positionalArgs [ 1 ] as bool ;
return componentState . partialVisualSimulation ! . modifyInput ( inputName , value ) ;
} ,
' simSetInputs ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
final inputs = positionalArgs [ 0 ] as Map ;
return componentState . partialVisualSimulation ! . provideInputs ( inputs . map ( ( key , value ) = > MapEntry ( key as String , value as bool ) ) ) ;
} ,
' simSetInputsBinary ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
final inputs = componentState . currentComponent ! . inputs ;
final inputsNum = positionalArgs [ 0 ] as int ;
final inputsBinary = inputsNum . toRadixString ( 2 ) . padLeft ( inputs . length , ' 0 ' ) ;
final inputsMap = Map . fromIterables ( inputs , inputsBinary . characters . map ( ( c ) = > c = = ' 1 ' ) ) ;
return componentState . partialVisualSimulation ! . provideInputs ( inputsMap ) ;
} ,
' simNextStep ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
return componentState . partialVisualSimulation ! . nextStep ( ) ;
} ,
' simRestart ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
return componentState . partialVisualSimulation ! . restart ( ) ;
} ,
' simIsPartiallySimulating ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
return simulatePartially . value ;
} ,
' simSetPartiallySimulating ' : (
HTEntity entity , {
List < dynamic > positionalArgs = const [ ] ,
Map < String , dynamic > namedArgs = const { } ,
List < HTType > typeArgs = const [ ] ,
} ) {
simulatePartially . value = positionalArgs [ 0 ] as bool ;
} ,
} ,
) ;
scriptingEnvironment . value ! . eval ( '''
external fun unload
external fun alert ( message: String , [ title ] )
external fun snackBar ( message: String , [ actionName , actionFunction ] )
external fun setTimeout ( millis: int , function , { positionalArgs , namedArgs } )
external fun getInputs - > List
external fun getOutputs - > List
external fun simGetInputValues - > Map
external fun simGetOutputValues - > Map
external fun simSetInput ( inputName: String , value: bool )
external fun simSetInputs ( values: Map )
external fun simSetInputsBinary ( values: int )
external fun simNextStep
external fun simRestart
external fun simIsPartiallySimulating - > bool
external fun simSetPartiallySimulating ( partiallySimulating: bool )
''' );
scriptingEnvironment . value ! . eval ( script , type: ResourceType . hetuModule ) ;
try {
scriptingEnvironment . value ! . invoke ( ' onLoad ' ) ;
} catch ( e ) {
// onLoad handling is optional
}
try {
scriptingEnvironment . value ! . invoke ( ' getFunctions ' ) ;
} catch ( e ) {
// Getting the callable functions of the script is mandatory
showDialog (
context: context ,
builder: ( context ) {
return AlertDialog (
title: const Text ( ' Script Loading Failed ' ) ,
content: const Text ( " The script doesn't implement the getFunctions function. " ) ,
actions: [
TextButton (
onPressed: ( ) {
Navigator . of ( context ) . pop ( ) ;
} ,
child: const Text ( ' OK ' ) ,
) ,
] ,
) ;
} ,
) ;
scriptingEnvironment . value = null ;
}
} , [ scriptingEnvironment . value ] ) ;
// Design
final movingWidgetUpdater = useState < void Function ( double dx , double dy ) ? > ( null ) ;
final movingWidget = useState < dynamic > ( null ) ;
final deleteOnDrop = useState < bool > ( false ) ;
final designSelection = useState < String ? > ( null ) ;
final wireToDelete = useState < String ? > ( null ) ;
final sourceToConnect = useState < String ? > ( null ) ;
final hoveredIO = useState < String ? > ( null ) ;
final deleteMovingWidget = useMemoized (
( ) = > ( ) async {
if ( ! deleteOnDrop . value ) {
return ;
}
final w = movingWidget . value ;
final cs = componentState ;
// First remove all connected wires
if ( w is DesignComponent ) {
// Get project state to be able to remove dependency
final projectState = Provider . of < ProjectState > ( context , listen: false ) ;
final wires = cs . wiringDraft . wires
. where (
( wire ) = > wire . input . startsWith ( ' ${ w . instanceId } / ' ) | | wire . output . startsWith ( ' ${ w . instanceId } / ' )
)
. map ( ( wire ) = > wire . wireId )
. toList ( ) ;
// Get component id before removing
final componentId = cs . wiringDraft . instances . where ( ( inst ) = > inst . instanceId = = w . instanceId ) . first . componentId ;
await cs . updateDesign ( cs . designDraft . copyWith (
wires: cs . designDraft . wires
. where ( ( wire ) = > ! wires . contains ( wire . wireId ) )
. toList ( ) ,
) , commit: false ) ;
await cs . updateWiring ( cs . wiringDraft . copyWith (
wires: cs . wiringDraft . wires
. where ( ( wire ) = > ! wires . contains ( wire . wireId ) )
. toList ( ) ,
) , commit: false ) ;
await cs . updateDesign ( cs . designDraft . copyWith (
components: cs . designDraft . components
. where ( ( comp ) = > comp . instanceId ! = w . instanceId )
. toList ( ) ,
) ) ;
await cs . updateWiring ( cs . wiringDraft . copyWith (
instances: cs . wiringDraft . instances
. where ( ( comp ) = > comp . instanceId ! = w . instanceId )
. toList ( ) ,
) ) ;
// Remove dependency if it's the last of its kind
if ( ! cs . wiringDraft . instances . map ( ( inst ) = > inst . componentId ) . contains ( componentId ) ) {
componentState . removeDependency ( componentId , modifyCurrentComponent: true ) ;
await projectState . editComponent ( componentState . currentComponent ! ) ;
}
}
else if ( w is DesignInput ) {
final wires = cs . wiringDraft . wires
. where (
( wire ) = > wire . output = = ' self/ ${ w . name } ' ,
)
. map ( ( wire ) = > wire . wireId )
. toList ( ) ;
await cs . updateDesign ( cs . designDraft . copyWith (
wires: cs . designDraft . wires
. where ( ( wire ) = > ! wires . contains ( wire . wireId ) )
. toList ( ) ,
) , commit: false ) ;
await cs . updateWiring ( cs . wiringDraft . copyWith (
wires: cs . wiringDraft . wires
. where ( ( wire ) = > ! wires . contains ( wire . wireId ) )
. toList ( ) ,
) ) ;
await cs . updateDesign ( cs . designDraft . copyWith (
inputs: cs . designDraft . inputs
. where ( ( input ) = > input . name ! = w . name )
. toList ( ) ,
) ) ;
}
else if ( w is DesignOutput ) {
final wires = cs . wiringDraft . wires
. where (
( wire ) = > wire . input = = ' self/ ${ w . name } ' ,
)
. map ( ( wire ) = > wire . wireId )
. toList ( ) ;
await cs . updateDesign ( cs . designDraft . copyWith (
wires: cs . designDraft . wires
. where ( ( wire ) = > ! wires . contains ( wire . wireId ) )
. toList ( ) ,
) , commit: false ) ;
await cs . updateWiring ( cs . wiringDraft . copyWith (
wires: cs . wiringDraft . wires
. where ( ( wire ) = > ! wires . contains ( wire . wireId ) )
. toList ( ) ,
) ) ;
await cs . updateDesign ( cs . designDraft . copyWith (
outputs: cs . designDraft . outputs
. where ( ( output ) = > output . name ! = w . name )
. toList ( ) ,
) ) ;
}
} ,
[
movingWidget . value ,
deleteOnDrop . value ,
componentState . wiringDraft ,
componentState . designDraft ,
] ,
) ;
final widgets = useMemoized ( ( ) = > [
for ( final subcomponent in componentState . designDraft . components )
CanvasObject (
dx: subcomponent . x ,
dy: subcomponent . y ,
width: VisualComponent . getNeededWidth (
context ,
componentState
. getMetaByInstance ( subcomponent . instanceId )
. item2
. inputs ,
componentState
. getMetaByInstance ( subcomponent . instanceId )
. item2
. outputs ,
Theme . of ( context ) . textTheme . bodyMedium ,
) ,
height: max (
componentState . getMetaByInstance ( subcomponent . instanceId ) . item2 . inputs . length ,
componentState . getMetaByInstance ( subcomponent . instanceId ) . item2 . outputs . length ,
) * 30 + 10 ,
child: Listener (
behavior: HitTestBehavior . translucent ,
onPointerDown: ( event ) {
final debouncer = FutureCallDebounce < List < double > > (
futureCall: ( xyList ) {
final dx = xyList [ 0 ] ;
final dy = xyList [ 1 ] ;
return componentState . updateDesign ( componentState . designDraft . copyWith (
components: componentState . designDraft . components . map (
( e ) = > e . instanceId = = subcomponent . instanceId ? e . copyWith (
x: subcomponent . x + dx ,
y: subcomponent . y + dy ,
) : e ,
) . toList ( ) ,
) , commit: false ) ;
} ,
combiner: ( oldParams , newParams ) {
return oldParams . zipWith ( [ newParams ] , ( deltas ) = > deltas . fold < double > ( 0.0 , ( prev , elem ) = > prev + elem ) ) . toList ( ) ;
} ,
) ;
movingWidgetUpdater . value = ( dx , dy ) {
debouncer . call ( [ dx , dy ] ) ;
} ;
movingWidget . value = subcomponent ;
} ,
onPointerUp: ( event ) {
deleteMovingWidget ( ) ;
componentState . updateDesign ( componentState . designDraft ) ;
movingWidgetUpdater . value = null ;
movingWidget . value = null ;
} ,
child: MouseRegion (
opaque: false ,
hitTestBehavior: HitTestBehavior . translucent ,
cursor: movingWidget . value = = subcomponent ? SystemMouseCursors . move : MouseCursor . defer ,
child: VisualComponent (
name: componentState . getMetaByInstance ( subcomponent . instanceId ) . item2 . componentName ,
inputs: componentState . getMetaByInstance ( subcomponent . instanceId ) . item2 . inputs ,
outputs: componentState . getMetaByInstance ( subcomponent . instanceId ) . item2 . outputs ,
inputColors: isSimulating . value ? {
for ( final input in componentState . getMetaByInstance ( subcomponent . instanceId ) . item2 . inputs )
input: componentState . partialVisualSimulation ! . inputsValues [ ' ${ subcomponent . instanceId } / $ input ' ] = = true ? Colors . green
: componentState . partialVisualSimulation ! . inputsValues [ ' ${ subcomponent . instanceId } / $ input ' ] = = false ? Colors . red
: Colors . black ,
} : null ,
outputColors: isSimulating . value ? {
for ( final output in componentState . getMetaByInstance ( subcomponent . instanceId ) . item2 . outputs )
output: componentState . partialVisualSimulation ! . outputsValues [ ' ${ subcomponent . instanceId } / $ output ' ] = = true ? Colors . green
: componentState . partialVisualSimulation ! . outputsValues [ ' ${ subcomponent . instanceId } / $ output ' ] = = false ? Colors . red
: Colors . black ,
} : null ,
isNextToSimulate: isSimulating . value & & componentState . partialVisualSimulation ! . nextToSimulate . contains ( subcomponent . instanceId ) ,
onInputHovered: designSelection . value = = ' wiring ' & & sourceToConnect . value ! = null ? ( input ) {
hoveredIO . value = ' ${ subcomponent . instanceId } / $ input ' ;
} : null ,
onInputUnhovered: designSelection . value = = ' wiring ' & & sourceToConnect . value ! = null ? ( input ) {
hoveredIO . value = null ;
} : null ,
onOutputHovered: designSelection . value = = ' wiring ' & & sourceToConnect . value = = null ? ( output ) {
hoveredIO . value = ' ${ subcomponent . instanceId } / $ output ' ;
} : null ,
onOutputUnhovered: designSelection . value = = ' wiring ' & & sourceToConnect . value = = null ? ( output ) {
hoveredIO . value = null ;
} : null ,
) ,
) ,
) ,
) ,
for ( final input in componentState . designDraft . inputs )
CanvasObject (
dx: input . x ,
dy: input . y ,
width: IOComponent . getNeededWidth ( context , input . name , textStyle: Theme . of ( context ) . textTheme . bodyMedium ) ,
height: 40 ,
child: Listener (
behavior: HitTestBehavior . translucent ,
onPointerDown: ( event ) {
final debouncer = FutureCallDebounce < List < double > > (
futureCall: ( xyList ) {
final dx = xyList [ 0 ] ;
final dy = xyList [ 1 ] ;
return componentState . updateDesign ( componentState . designDraft . copyWith (
inputs: componentState . designDraft . inputs . map (
( e ) = > e . name = = input . name ? e . copyWith (
x: input . x + dx ,
y: input . y + dy ,
) : e ,
) . toList ( ) ,
) , commit: false ) ;
} ,
combiner: ( oldParams , newParams ) {
return oldParams . zipWith ( [ newParams ] , ( deltas ) = > deltas . fold < double > ( 0.0 , ( prev , elem ) = > prev + elem ) ) . toList ( ) ;
} ,
) ;
movingWidgetUpdater . value = ( dx , dy ) {
debouncer . call ( [ dx , dy ] ) ;
} ;
movingWidget . value = input ;
} ,
onPointerUp: ( event ) {
deleteMovingWidget ( ) ;
componentState . updateDesign ( componentState . designDraft ) ;
movingWidgetUpdater . value = null ;
movingWidget . value = null ;
} ,
child: IOComponent (
input: true ,
name: input . name ,
width: IOComponent . getNeededWidth ( context , input . name , textStyle: Theme . of ( context ) . textTheme . bodyMedium ) ,
color: isSimulating . value
? ( componentState . partialVisualSimulation ! . outputsValues [ ' self/ ${ input . name } ' ] !
? Colors . green
: Colors . red )
: null ,
onTap: isSimulating . value ? ( ) {
componentState . partialVisualSimulation ! . toggleInput ( input . name ) ;
} : null ,
onHovered: designSelection . value = = ' wiring ' & & sourceToConnect . value = = null ? ( ) {
hoveredIO . value = ' self/ ${ input . name } ' ;
} : null ,
onUnhovered: designSelection . value = = ' wiring ' & & sourceToConnect . value = = null ? ( ) {
hoveredIO . value = null ;
} : null ,
flashing: designSelection . value = = ' wiring ' & & sourceToConnect . value = = null ,
) ,
) ,
) ,
for ( final output in componentState . designDraft . outputs )
CanvasObject (
dx: output . x ,
dy: output . y ,
width: IOComponent . getNeededWidth ( context , output . name , textStyle: Theme . of ( context ) . textTheme . bodyMedium ) ,
height: 40 ,
child: Listener (
behavior: HitTestBehavior . translucent ,
onPointerDown: ( event ) {
final debouncer = FutureCallDebounce < List < double > > (
futureCall: ( xyList ) {
final dx = xyList [ 0 ] ;
final dy = xyList [ 1 ] ;
return componentState . updateDesign ( componentState . designDraft . copyWith (
outputs: componentState . designDraft . outputs . map (
( e ) = > e . name = = output . name ? e . copyWith (
x: output . x + dx ,
y: output . y + dy ,
) : e ,
) . toList ( ) ,
) , commit: false ) ;
} ,
combiner: ( oldParams , newParams ) {
return oldParams . zipWith ( [ newParams ] , ( deltas ) = > deltas . fold < double > ( 0.0 , ( prev , elem ) = > prev + elem ) ) . toList ( ) ;
} ,
) ;
movingWidgetUpdater . value = ( dx , dy ) {
debouncer . call ( [ dx , dy ] ) ;
} ;
movingWidget . value = output ;
} ,
onPointerUp: ( event ) {
deleteMovingWidget ( ) ;
componentState . updateDesign ( componentState . designDraft ) ;
movingWidgetUpdater . value = null ;
movingWidget . value = null ;
} ,
child: IOComponent (
input: false ,
name: output . name ,
width: IOComponent . getNeededWidth ( context , output . name , textStyle: Theme . of ( context ) . textTheme . bodyMedium ) ,
color: isSimulating . value
? ( componentState . partialVisualSimulation ! . inputsValues [ ' self/ ${ output . name } ' ] = = true ? Colors . green
: componentState . partialVisualSimulation ! . inputsValues [ ' self/ ${ output . name } ' ] = = false ? Colors . red
: null )
: null ,
onHovered: designSelection . value = = ' wiring ' & & sourceToConnect . value ! = null ? ( ) {
hoveredIO . value = ' self/ ${ output . name } ' ;
} : null ,
onUnhovered: designSelection . value = = ' wiring ' & & sourceToConnect . value ! = null ? ( ) {
hoveredIO . value = null ;
} : null ,
flashing: designSelection . value = = ' wiring ' & & sourceToConnect . value ! = null ,
) ,
) ,
) ,
for ( final wire in componentState . wiringDraft . wires )
( ( ) {
const ioCircleDiameter = 20 ;
Offset from , to ;
if ( wire . output . split ( ' / ' ) [ 0 ] = = ' self ' ) {
// It's a component input
// Find input
final inputName = wire . output . split ( ' / ' ) [ 1 ] ;
final design = componentState . designDraft . inputs . where ( ( i ) = > i . name = = inputName ) . first ;
from = Offset (
// Take into account widget length
design . x +
IOComponent . getNeededWidth (
context ,
inputName ,
textStyle: Theme . of ( context ) . textTheme . bodyMedium ,
) ,
design . y + ioCircleDiameter + 1 ,
) ;
}
else {
// It's a subcomponent output
// Find subcomponent
final split = wire . output . split ( ' / ' ) ;
final subcomponentId = split [ 0 ] ;
final outputName = split [ 1 ] ;
final design = componentState . designDraft . components . where ( ( c ) = > c . instanceId = = subcomponentId ) . first ;
final subcomponent = componentState . getMetaByInstance ( subcomponentId ) . item2 ;
from = Offset (
// Take into account widget length
design . x +
VisualComponent . getNeededWidth (
context ,
subcomponent . inputs ,
subcomponent . outputs ,
Theme . of ( context ) . textTheme . bodyMedium ,
) ,
design . y +
VisualComponent . getHeightOfIO (
context ,
subcomponent . outputs ,
subcomponent . outputs . indexOf ( outputName ) ,
Theme . of ( context ) . textTheme . bodyMedium ,
) ,
) ;
}
if ( wire . input . split ( ' / ' ) [ 0 ] = = ' self ' ) {
// It's a component output
// Find output
final outputName = wire . input . split ( ' / ' ) [ 1 ] ;
final design = componentState . designDraft . outputs . where ( ( o ) = > o . name = = outputName ) . first ;
to = Offset (
design . x ,
design . y + ioCircleDiameter + 1 ,
) ;
}
else {
// It's a subcomponent input
// Find subcomponent
final split = wire . input . split ( ' / ' ) ;
final subcomponentId = split [ 0 ] ;
final inputName = split [ 1 ] ;
final design = componentState . designDraft . components . where ( ( c ) = > c . instanceId = = subcomponentId ) . first ;
final subcomponent = componentState . getMetaByInstance ( subcomponentId ) . item2 ;
to = Offset (
// Take into account widget length
design . x ,
design . y +
VisualComponent . getHeightOfIO (
context ,
subcomponent . inputs ,
subcomponent . inputs . indexOf ( inputName ) ,
Theme . of ( context ) . textTheme . bodyMedium ,
) ,
) ;
}
var wireColor = Colors . black ;
if ( isSimulating . value ) {
final wireValue = componentState . partialVisualSimulation ! . outputsValues [ wire . output ] ;
if ( wireValue = = true ) {
wireColor = Colors . green ;
}
else if ( wireValue = = false ) {
wireColor = Colors . red ;
}
}
return CanvasObject (
dx: min ( from . dx , to . dx ) ,
dy: min ( from . dy , to . dy ) ,
width: ( to - from ) . dx . abs ( ) ,
height: ( to - from ) . dy . abs ( ) ,
child: MouseRegion (
hitTestBehavior: HitTestBehavior . translucent ,
opaque: false ,
onEnter: ( _ ) {
if ( designSelection . value = = ' wiring ' ) {
wireToDelete . value = wire . wireId ;
}
} ,
onExit: ( _ ) {
wireToDelete . value = null ;
} ,
child: GestureDetector (
behavior: HitTestBehavior . translucent ,
onTap: ( ) async {
if ( designSelection . value = = ' wiring ' ) {
if ( wireToDelete . value ! = wire . wireId ) {
wireToDelete . value = wire . wireId ;
}
else {
// Delete the wire
await componentState . updateDesign ( componentState . designDraft . copyWith (
wires: componentState . designDraft . wires . where ( ( w ) = > w . wireId ! = wireToDelete . value ) . toList ( ) ,
) ) ;
await componentState . updateWiring ( componentState . wiringDraft . copyWith (
wires: componentState . wiringDraft . wires . where ( ( w ) = > w . wireId ! = wireToDelete . value ) . toList ( ) ,
) ) ;
wireToDelete . value = null ;
}
}
} ,
child: WireWidget (
from: from ,
to: to ,
color: wireToDelete . value = = wire . wireId ? Colors . red : wireColor ,
) ,
) ,
) ,
) ;
} ) ( ) ,
] , [ componentState . wiringDraft , componentState . designDraft , isSimulating . value , componentState . partialVisualSimulation ! . outputsValues , designSelection . value , sourceToConnect . value ] ) ;
useEffect ( ( ) {
final wList = widgets ;
canvasController . addCanvasObjects ( wList ) ;
return ( ) {
// Cleanup
for ( final obj in wList ) {
canvasController . removeCanvasObject ( obj ) ;
}
} ;
} , [ widgets ] ) ;
useEffect ( ( ) {
if ( isSimulating . value & & ! simulatePartially . value & & componentState . partialVisualSimulation ! . nextToSimulate . isNotEmpty ) {
componentState . partialVisualSimulation ! . nextStep ( ) ;
}
return null ;
} , [ componentState . partialVisualSimulation ! . outputsValues . entries . map ( ( e ) = > ' ${ e . key } : ${ e . value } ' ) . join ( ' ; ' ) , simulatePartially . value , isSimulating . value ] ) ;
return Scaffold (
appBar: AppBar (
centerTitle: true ,
title: Text ( ' ${ isSimulating . value ? ' Simulation ' : ' Design ' } - ${ component . componentName } ' ) ,
actions: [
IconButton (
icon: Icon ( isSimulating . value ? Icons . stop : Icons . play_arrow ) ,
tooltip: isSimulating . value ? ' Stop Simulation ' : ' Start Simulation ' ,
onPressed: ( ) {
isSimulating . value = ! isSimulating . value ;
designSelection . value = null ;
} ,
) ,
if ( isSimulating . value )
IconButton (
icon: const Icon ( Icons . description ) ,
tooltip: ' Scripting ' ,
onPressed: ( ) {
showDialog (
context: context ,
builder: ( context ) {
return AlertDialog (
title: const Text ( ' Scripting ' ) ,
content: Column (
mainAxisSize: MainAxisSize . min ,
children: [
ListTile (
title: const Text ( ' Load Script... ' ) ,
onTap: ( ) async {
final nav = Navigator . of ( context ) ;
final selectedFiles = await FilePicker . platform . pickFiles (
dialogTitle: " Load Script " ,
// allowedExtensions: ['ht', 'txt'],
type: FileType . any ,
) ;
if ( selectedFiles = = null | | selectedFiles . files . isEmpty ) {
return ;
}
try {
final file = File ( selectedFiles . files [ 0 ] . path ! ) ;
nav . pop ( ) ;
loadScript ( await file . readAsString ( ) ) ;
} catch ( e ) {
showDialog (
context: context ,
builder: ( context ) {
return AlertDialog (
title: const Text ( ' Script Loading Error ' ) ,
content: Text ( e . toString ( ) ) ,
actions: [
TextButton (
onPressed: ( ) {
Navigator . of ( context ) . pop ( ) ;
} ,
child: const Text ( ' OK ' ) ,
) ,
] ,
) ;
} ,
) ;
}
} ,
) ,
if ( scriptingEnvironment . value ! = null ) . . . [
const Divider ( ) ,
for ( final function in scriptingEnvironment . value ! . invoke ( ' getFunctions ' ) )
ListTile (
title: Text ( function ) ,
onTap: ( ) {
Navigator . of ( context ) . pop ( ) ;
try {
scriptingEnvironment . value ! . invoke ( function ) ;
} on HTError catch ( e ) {
showDialog (
context: context ,
builder: ( context ) {
return AlertDialog (
title: const Text ( ' Script Error ' ) ,
content: Text ( e . toString ( ) ) ,
actions: [
TextButton (
onPressed: ( ) = > Navigator . of ( context ) . pop ( ) ,
child: const Text ( ' OK ' ) ,
) ,
] ,
) ;
} ,
) ;
scriptingEnvironment . value = null ;
}
} ,
) ,
] ,
] ,
) ,
) ;
} ,
) ;
} ,
)
] ,
) ,
body: OrientationBuilder (
builder: ( context , orientation ) {
final stackCanvas = GestureDetector (
behavior: HitTestBehavior . translucent ,
onPanUpdate: ( update ) {
final hw = movingWidgetUpdater . value ;
if ( hw = = null | | isSimulating . value ) {
canvasController . offset = canvasController . offset . translate ( update . delta . dx , update . delta . dy ) ;
}
else {
hw ( update . delta . dx , update . delta . dy ) ;
}
} ,
onTapUp: ( update ) async {
final canvasCenterLocation = canvasController . canvasSize / 2 ;
final canvasCenterLocationOffset = Offset ( canvasCenterLocation . width , canvasCenterLocation . height ) ;
final canvasLocation = update . localPosition - canvasCenterLocationOffset + canvasController . offset ;
final ds = designSelection . value ;
if ( ds = = null ) {
return ;
}
if ( ds = = ' wiring ' ) {
// Handle wire creation
if ( hoveredIO . value = = null ) {
// If clicking on something not hovered, ignore
return ;
}
else if ( sourceToConnect . value = = null ) {
sourceToConnect . value = hoveredIO . value ;
hoveredIO . value = null ;
} else {
// Create wire only if sink is not already connected
if ( componentState . wiringDraft . wires . where ( ( w ) = > w . input = = hoveredIO . value ) . isNotEmpty ) {
// Sink already connected
final sinkType = hoveredIO . value ! . startsWith ( ' self/ ' ) ? ' component output ' : ' subcomponent input ' ;
ScaffoldMessenger . of ( context ) . showSnackBar ( SnackBar (
content: Text ( ' Wire already connected to that $ sinkType . ' ) ,
) ) ;
return ;
}
componentState . updateWiring ( componentState . wiringDraft . copyWith (
wires: componentState . wiringDraft . wires + [
WiringWire (
wireId: const Uuid ( ) . v4 ( ) ,
output: sourceToConnect . value ! ,
input: hoveredIO . value ! ,
) ,
] ,
) ) ;
sourceToConnect . value = null ;
hoveredIO . value = null ;
}
}
else if ( ds . startsWith ( ' input: ' ) ) {
final inputName = ds . substring ( 6 ) ;
componentState . updateDesign ( componentState . designDraft . copyWith (
inputs: componentState . designDraft . inputs + [
DesignInput (
name: inputName ,
x: canvasLocation . dx - IOComponent . getNeededWidth ( context , inputName ) / 2 ,
y: canvasLocation . dy ,
) ,
] ,
) ) ;
designSelection . value = null ;
}
else if ( ds . startsWith ( ' output: ' ) ) {
final outputName = ds . substring ( 7 ) ;
componentState . updateDesign ( componentState . designDraft . copyWith (
outputs: componentState . designDraft . outputs + [
DesignOutput (
name: outputName ,
x: canvasLocation . dx - IOComponent . getNeededWidth ( context , outputName ) / 2 ,
y: canvasLocation . dy ,
) ,
] ,
) ) ;
designSelection . value = null ;
}
else {
final currentProjectState = Provider . of < ProjectState > ( context , listen: false ) ;
// Add subcomponent
final splitted = ds . split ( ' / ' ) ;
var projectId = splitted [ 0 ] ;
final componentId = splitted [ 1 ] ;
if ( Provider . of < ProjectState > ( context , listen: false ) . currentProject ! . projectId = = projectId ) {
projectId = ' self ' ;
}
final depId = ' $ projectId / $ componentId ' ;
final project = projectId = = ' self '
? Provider . of < ProjectState > ( context , listen: false ) . currentProject !
: Provider . of < ProjectsState > ( context , listen: false ) . index . projects . where ( ( p ) = > p . projectId = = projectId ) . first ;
final projectState = ProjectState ( ) ;
await projectState . setCurrentProject ( project ) ;
final component = projectState . index . components . where ( ( c ) = > c . componentId = = componentId ) . first ;
// Add dependency
if ( ! componentState . hasDependency ( depId ) ) {
componentState . addDependency (
depId ,
Tuple2 (
project ,
component ,
) ,
modifyCurrentComponent: true ,
) ;
await currentProjectState . editComponent ( componentState . currentComponent ! ) ;
}
// Create component instance
final instanceId = const Uuid ( ) . v4 ( ) ;
await componentState . updateWiring ( componentState . wiringDraft . copyWith (
instances: componentState . wiringDraft . instances + [
WiringInstance (
componentId: depId ,
instanceId: instanceId ,
) ,
] ,
) ) ;
await componentState . updateDesign ( componentState . designDraft . copyWith (
components: componentState . designDraft . components + [
DesignComponent (
instanceId: instanceId ,
x: canvasLocation . dx ,
y: canvasLocation . dy ,
) ,
] ,
) ) ;
// Recreate simulation with new subcomponent
await componentState . recreatePartialSimulation ( ) ;
designSelection . value = null ;
}
} ,
child: Stack (
children: [
StackCanvas (
key: canvasKey ,
canvasController: canvasController ,
animationDuration: const Duration ( milliseconds: 50 ) ,
// disposeController: false,
backgroundColor: Theme . of ( context ) . colorScheme . background ,
) ,
if ( ! isSimulating . value )
Positioned (
bottom: 0 ,
right: 0 ,
child: MouseRegion (
hitTestBehavior: HitTestBehavior . translucent ,
opaque: false ,
onEnter: ( _ ) {
deleteOnDrop . value = true ;
} ,
onExit: ( _ ) {
deleteOnDrop . value = false ;
} ,
child: Padding (
padding: const EdgeInsets . all ( 16.0 ) ,
child: Icon (
Icons . delete ,
color: movingWidget . value ! = null & & deleteOnDrop . value ? Colors . red : null ,
) ,
) ,
) ,
) ,
] ,
) ,
) ;
final debuggingButtons = DebuggingButtons (
partialSimulation: simulatePartially . value ,
onPartialSimulationToggle: ( ) {
simulatePartially . value = ! simulatePartially . value ;
} ,
onReset: simulatePartially . value ? ( ) {
componentState . partialVisualSimulation ! . restart ( ) ;
} : null ,
onNextStep: simulatePartially . value & & componentState . partialVisualSimulation ! . nextToSimulate . isNotEmpty ? ( ) {
componentState . partialVisualSimulation ! . nextStep ( ) ;
} : null ,
) ;
final componentPicker = ComponentPicker (
key: pickerKey ,
onSelectionUpdate: ( selection ) {
designSelection . value = selection ;
if ( selection ! = ' wiring ' ) {
wireToDelete . value = null ;
sourceToConnect . value = null ;
}
} ,
selection: designSelection . value ,
) ;
if ( orientation = = Orientation . portrait ) {
return Column (
mainAxisSize: MainAxisSize . max ,
children: [
Expanded (
child: Stack (
children: [
stackCanvas ,
if ( isSimulating . value )
Positioned (
top: 8 ,
left: 0 ,
right: 0 ,
child: Center (
child: debuggingButtons ,
) ,
) ,
] ,
) ,
) ,
if ( ! isSimulating . value )
componentPicker ,
] ,
) ;
}
else {
return Row (
mainAxisSize: MainAxisSize . max ,
children: [
Expanded (
child: Stack (
children: [
stackCanvas ,
if ( isSimulating . value )
Positioned (
top: 8 ,
left: 0 ,
right: 0 ,
child: Center (
child: debuggingButtons ,
) ,
) ,
] ,
) ,
) ,
if ( ! isSimulating . value )
componentPicker ,
] ,
) ;
}
}
) ,
) ;
}
}
class DebuggingButtons extends StatelessWidget {
final bool partialSimulation ;
final void Function ( ) onPartialSimulationToggle ;
final void Function ( ) ? onReset ;
final void Function ( ) ? onNextStep ;
const DebuggingButtons ( { super . key , required this . partialSimulation , required this . onPartialSimulationToggle , this . onReset , this . onNextStep } ) ;
@ override
Widget build ( BuildContext context ) {
return Card (
child: Padding (
padding: const EdgeInsets . all ( 8.0 ) ,
child: Row (
mainAxisSize: MainAxisSize . min ,
children: [
IconButton (
onPressed: onPartialSimulationToggle ,
icon: Icon (
partialSimulation ? Icons . play_arrow : Icons . pause ,
) ,
tooltip: partialSimulation ? ' Simulate to end ' : ' Simulate partially ' ,
) ,
IconButton (
onPressed: onNextStep ,
icon: const Icon ( Icons . navigate_next ) ,
tooltip: ' Simulate next step ' ,
) ,
IconButton (
onPressed: onReset ,
icon: const Icon ( Icons . replay_outlined ) ,
tooltip: ' Restart simulation ' ,
) ,
] ,
) ,
) ,
) ;
}
}
class ComponentPicker extends HookWidget {
const ComponentPicker ( { required this . onSelectionUpdate , required this . selection , super . key } ) ;
final String ? selection ;
final void Function ( String ? selection ) onSelectionUpdate ;
@ override
Widget build ( BuildContext context ) {
final projectsState = useProvider < ProjectsState > ( ) ;
final tickerProvider = useSingleTickerProvider ( ) ;
final tabBarControllerState = useState < TabController ? > ( null ) ;
useEffect ( ( ) {
tabBarControllerState . value = TabController (
length: 3 + projectsState . projects . length ,
vsync: tickerProvider ,
initialIndex: 1 ,
) ;
tabBarControllerState . value ! . addListener ( ( ) {
if ( tabBarControllerState . value ! . index = = 0 ) {
onSelectionUpdate ( ' wiring ' ) ;
}
else {
onSelectionUpdate ( null ) ;
}
} ) ;
return ( ) {
tabBarControllerState . value ? . dispose ( ) ;
} ;
} , [ ] ) ;
final tabBarController = tabBarControllerState . value ! ;
return OrientationBuilder (
builder: ( context , orientation ) {
return SizedBox (
height: orientation = = Orientation . portrait ? 200 : null ,
width: orientation = = Orientation . landscape ? 300 : null ,
child: Column (
mainAxisSize: MainAxisSize . min ,
children: [
TabBar (
controller: tabBarController ,
tabs: [
const Tab (
text: ' Wiring ' ,
) ,
const Tab (
text: ' Inputs ' ,
) ,
const Tab (
text: ' Outputs ' ,
) ,
for ( final project in projectsState . projects )
Tab (
text: project . projectName ,
) ,
] ,
isScrollable: true ,
) ,
Expanded (
child: TabBarView (
controller: tabBarController ,
children: [
Center (
child: Column (
mainAxisSize: MainAxisSize . min ,
children: const [
Padding (
padding: EdgeInsets . all ( 8.0 ) ,
child: Text (
' To create wires, click a source and then click a sink to link them. ' ,
) ,
) ,
Padding (
padding: EdgeInsets . all ( 8.0 ) ,
child: Text (
' To remove wires, click them or tap them twice. ' ,
) ,
) ,
] ,
) ,
) ,
IOComponentPickerOptions (
orientation: orientation ,
outputs: false ,
selection: selection ,
onSelected: onSelectionUpdate ,
) ,
IOComponentPickerOptions (
orientation: orientation ,
outputs: true ,
selection: selection ,
onSelected: onSelectionUpdate ,
) ,
for ( final project in projectsState . projects )
HookBuilder (
builder: ( context ) {
final scrollController = useScrollController ( ) ;
final projectState = useFuture ( ( ) async {
final projectState = ProjectState ( ) ;
await projectState . setCurrentProject ( project ) ;
return projectState ;
} ( ) ) ;
if ( projectState . data = = null ) {
return Container ( ) ;
}
final components = projectState . data ! . index . components ;
return Column (
mainAxisSize: MainAxisSize . min ,
crossAxisAlignment: CrossAxisAlignment . stretch ,
children: [
const Padding (
padding: EdgeInsets . all ( 8.0 ) ,
child: Text ( ' To add a component, select it below and then click on the canvas to place it. ' ) ,
) ,
Expanded (
child: Scrollbar (
controller: scrollController ,
scrollbarOrientation: orientation = = Orientation . portrait ? ScrollbarOrientation . bottom : ScrollbarOrientation . right ,
child: SingleChildScrollView (
controller: scrollController ,
scrollDirection: orientation = = Orientation . portrait ? Axis . horizontal : Axis . vertical ,
child: Wrap (
direction: orientation = = Orientation . portrait ? Axis . vertical : Axis . horizontal ,
crossAxisAlignment: WrapCrossAlignment . center ,
children: [
for ( final component in components )
IntrinsicWidth (
child: Card (
color: selection = = ' ${ project . projectId } / ${ component . componentId } ' ? Theme . of ( context ) . colorScheme . primaryContainer : null ,
child: InkWell (
onTap: ( ) {
if ( selection ! = ' ${ project . projectId } / ${ component . componentId } ' ) {
onSelectionUpdate ( ' ${ project . projectId } / ${ component . componentId } ' ) ;
}
else {
onSelectionUpdate ( null ) ;
}
} ,
child: Padding (
padding: const EdgeInsets . all ( 8.0 ) ,
child: Text (
component . componentName ,
style: selection = = ' ${ project . projectId } / ${ component . componentId } '
? TextStyle (
inherit: true ,
color: Theme . of ( context ) . colorScheme . onPrimaryContainer ,
)
: null ,
) ,
) ,
) ,
) ,
) ,
] ,
) ,
) ,
) ,
) ,
] ,
) ;
}
) ,
] ,
) ,
) ,
] ,
) ,
) ;
} ,
) ;
}
}
class IOComponentPickerOptions extends HookWidget {
final Orientation orientation ;
final bool outputs ;
final String ? selection ;
final void Function ( String ? selection ) onSelected ;
const IOComponentPickerOptions ( { required this . orientation , required this . outputs , required this . selection , required this . onSelected , super . key , } ) ;
String getSelectionName ( String option ) = > ' ${ ! outputs ? " input " : " output " } : $ option ' ;
@ override
Widget build ( BuildContext context ) {
final componentState = useProvider < ComponentState > ( ) ;
final scrollController = useScrollController ( ) ;
final options = ! outputs ? componentState . currentComponent ! . inputs : componentState . currentComponent ! . outputs ;
return Builder (
builder: ( context ) {
return Column (
mainAxisSize: MainAxisSize . min ,
crossAxisAlignment: CrossAxisAlignment . stretch ,
children: [
Padding (
padding: const EdgeInsets . all ( 8.0 ) ,
child: Text ( ' To add an ${ ! outputs ? " input " : " output " } , select it below and then click on the canvas to place it. You can only add one of each. Red ${ ! outputs ? " inputs " : " outputs " } have already been placed. ' ) ,
) ,
Expanded (
child: Scrollbar (
controller: scrollController ,
scrollbarOrientation: orientation = = Orientation . portrait ? ScrollbarOrientation . bottom : ScrollbarOrientation . right ,
child: SingleChildScrollView (
controller: scrollController ,
scrollDirection: orientation = = Orientation . portrait ? Axis . horizontal : Axis . vertical ,
child: Wrap (
direction: orientation = = Orientation . portrait ? Axis . vertical : Axis . horizontal ,
crossAxisAlignment: WrapCrossAlignment . center ,
children: [
for ( final option in options )
IntrinsicWidth (
child: Card (
color: (
! outputs
? componentState . designDraft . inputs . map ( ( input ) = > input . name ) . contains ( option )
: componentState . designDraft . outputs . map ( ( output ) = > output . name ) . contains ( option )
)
? const Color . fromARGB ( 100 , 255 , 0 , 0 )
: selection = = getSelectionName ( option )
? Theme . of ( context ) . colorScheme . primaryContainer
: null ,
child: InkWell (
onTap: (
! outputs
? componentState . designDraft . inputs . map ( ( input ) = > input . name ) . contains ( option )
: componentState . designDraft . outputs . map ( ( output ) = > output . name ) . contains ( option )
) ? null : ( ) {
if ( selection = = getSelectionName ( option ) ) {
onSelected ( null ) ;
}
else {
onSelected ( getSelectionName ( option ) ) ;
}
} ,
child: Padding (
padding: const EdgeInsets . all ( 8.0 ) ,
child: Text (
option ,
style: selection = = getSelectionName ( option )
? TextStyle (
inherit: true ,
color: Theme . of ( context ) . colorScheme . onPrimaryContainer ,
)
: null ,
) ,
) ,
) ,
) ,
) ,
] ,
) ,
) ,
) ,
) ,
] ,
) ;
}
) ;
}
}
