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Merge pull request #27 from BrookJeynes/add-color-map-layout-node
feat: Add color map layout node
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| package colormap | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "github.com/cfoust/cy/pkg/geom" | ||
| "github.com/cfoust/cy/pkg/geom/tty" | ||
| L "github.com/cfoust/cy/pkg/layout" | ||
| "github.com/cfoust/cy/pkg/layout/prop" | ||
| "github.com/cfoust/cy/pkg/mux" | ||
| "github.com/cfoust/cy/pkg/taro" | ||
|
|
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| "github.com/sasha-s/go-deadlock" | ||
| ) | ||
|
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| type ColorMap struct { | ||
| *L.Computable | ||
| deadlock.RWMutex | ||
| *mux.UpdatePublisher | ||
| render *taro.Renderer | ||
| screen mux.Screen | ||
| size geom.Size | ||
| config L.ColorMapType | ||
| } | ||
|
|
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| var _ mux.Screen = (*ColorMap)(nil) | ||
| var _ L.Reusable = (*ColorMap)(nil) | ||
|
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| func (l *ColorMap) Apply(node L.NodeType) (bool, error) { | ||
| config, ok := node.(L.ColorMapType) | ||
| if !ok { | ||
| return false, nil | ||
| } | ||
|
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| l.Lock() | ||
| defer l.Unlock() | ||
|
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| l.config = config | ||
|
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| layout := L.New(config.Node) | ||
| for _, prop := range []prop.Presettable{ | ||
| config.Map, | ||
| } { | ||
| prop.SetLogger(l.Logger) | ||
| prop.Preset( | ||
| l.Ctx(), | ||
| l.Context.Context(), | ||
| &layout, | ||
| ) | ||
| prop.ClearCache() | ||
| } | ||
|
|
||
| return true, nil | ||
| } | ||
|
|
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| func (l *ColorMap) Kill() { | ||
| l.RLock() | ||
| screen := l.screen | ||
| l.RUnlock() | ||
|
|
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| screen.Kill() | ||
| } | ||
|
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| func (l *ColorMap) State() *tty.State { | ||
| l.Lock() | ||
| defer l.Unlock() | ||
|
|
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| var ( | ||
| size = l.size | ||
| config = l.config | ||
| ) | ||
|
|
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| innerState := l.screen.State() | ||
| state := tty.New(size) | ||
| tty.Copy(geom.Vec2{}, state, innerState) | ||
|
|
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| if value, ok := config.Map.GetPreset(); ok { | ||
| value.Apply(state.Image) | ||
| } | ||
|
|
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| return state | ||
| } | ||
|
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| func (l *ColorMap) Send(msg mux.Msg) { | ||
| l.RLock() | ||
| l.RUnlock() | ||
| l.screen.Send(msg) | ||
| } | ||
|
|
||
| func (l *ColorMap) Size() geom.Size { | ||
| l.RLock() | ||
| defer l.RUnlock() | ||
| return l.size | ||
| } | ||
|
|
||
| func (l *ColorMap) poll(ctx context.Context) { | ||
| updates := l.screen.Subscribe(ctx) | ||
|
|
||
| for { | ||
| select { | ||
| case <-ctx.Done(): | ||
| return | ||
| case event := <-updates.Recv(): | ||
| if _, ok := event.(L.NodeChangeEvent); ok { | ||
| continue | ||
| } | ||
| l.Publish(event) | ||
| } | ||
| } | ||
| } | ||
|
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||
| func (l *ColorMap) Resize(size geom.Size) error { | ||
| l.Lock() | ||
| l.size = size | ||
| l.Unlock() | ||
| return l.screen.Resize(size) | ||
| } | ||
|
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||
| func New(ctx context.Context, screen mux.Screen) *ColorMap { | ||
| c := L.NewComputable(ctx) | ||
| colormap := &ColorMap{ | ||
| Computable: c, | ||
| UpdatePublisher: mux.NewPublisher(), | ||
| size: geom.DEFAULT_SIZE, | ||
| screen: screen, | ||
| render: taro.NewRenderer(), | ||
| } | ||
|
|
||
| go colormap.poll(colormap.Ctx()) | ||
|
|
||
| return colormap | ||
| } |
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